Injection molding rubber anti-overflow structure

By using annular card slots, card blocks and sealing strips in the injection mold, combined with the limiting function of the slide grooves and slides, the problem of colloid overflow inside the mold is solved, and the sealing and quality of injection molding is improved.

CN222309626UActive Publication Date: 2025-01-07SHENZHEN HONGMING PLASTIC CO LTD
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Patent Information

Application Number
CN202420674306.4
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-04-02
Publication Date
2025-01-07
Estimated Expiration
2034-04-02

AI Technical Summary

Technical Problem

When the injection mold is bonded to the upper mold and the lower mold, due to the unsatisfactory sealing effect, the colloid inside the mold overflows, affecting the molding quality of the injection molded product.

Method used

The ring-shaped card slot, ring-shaped card block, first ring-shaped sealing strip and second ring-shaped sealing strip ensure the tight fit between the upper mold and the lower mold, and the connecting plate and upper mold are driven by the sliding groove and slider on the electric push rod. It plays a limiting role when lifting and lowering to prevent colloid from overflowing.

Benefits of technology

Effectively prevent colloids from flowing out of the gaps in the mold, improve the injection molding quality, and ensure the sealing inside the mold.

✦ Generated by Eureka AI based on patent content.

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    Figure CN222309626U_ABST
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Abstract

The utility model discloses an injection molding material anti-overflow structure which comprises a shell, a lower mold body is fixedly connected to the inner bottom wall of the shell, an annular clamping groove is formed in the upper surface of the lower mold body, a first annular sealing rubber strip is fixedly connected to the upper surface of the lower mold body, an electric push rod is fixedly installed on the inner top wall of the shell, and a second annular sealing rubber strip is fixedly connected to the inner top wall of the shell. And the output end of the electric push rod is fixedly connected with a connecting plate. According to the device, firstly, an annular clamping groove, an annular clamping block, a first annular sealing rubber strip and a second annular sealing rubber strip are arranged, and the upper mold body and the lower mold body can be attached more tightly through the annular clamping groove, the annular clamping block, the first annular sealing rubber strip and the second annular sealing rubber strip; in this way, glue in the mold can be prevented from flowing out of a gap between the two molds, and then through the arrangement of a sliding groove and a sliding block, the good limiting effect can be achieved through the sliding groove and the sliding block when the electric push rod drives the connecting plate and the upper mold body to ascend and descend.
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Description

Technical Field

[0001] The utility model relates to the technical field of injection molds, in particular to an injection glue overflow prevention structure. Background Art

[0002] An injection mold is a tool for producing plastic products, and is also a tool for giving 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 injection mold cavity by an injection molding machine, and after cooling and solidification, a molded product is obtained. Although the structure of the injection mold may vary due to differences in plastic variety and performance, shape and structure of plastic products, and type of injection machine, the basic structure is the same.

[0003] When the upper mold and the lower mold are fitted together, the sealing effect is not ideal, which will cause the colloid inside the mold to overflow from the gap between the two molds to the outside of the two molds, thereby affecting the final molding quality of the injection molded product. For this reason, we propose an injection molding glue anti-overflow structure to solve the above problem. Utility Model Content

[0004] The utility model aims to provide a plastic injection glue overflow prevention structure to solve the problems raised in the above background technology.

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

[0006] A plastic injection glue overflow prevention structure comprises a shell, the inner bottom wall of the shell is fixedly connected to a lower mold body, the upper surface of the lower mold body is provided with an annular groove, the upper surface of the lower mold body is fixedly connected to a first annular sealing strip, the inner top wall of the shell is fixedly installed with an electric push rod, the output end of the electric push rod is fixedly connected to a connecting plate, the bottom surface of the connecting plate is fixedly connected to an upper mold body, the bottom surface of the upper mold body is fixedly connected with an annular block, the bottom surface of the upper mold body is fixedly connected with a second annular sealing strip, the inner side wall of the shell is provided with two sliding grooves, the interiors of the two sliding grooves are slidably connected with sliders, and the side surfaces of the two sliders close to each other are respectively connected to the left and right side surfaces of the connecting plate.

[0007] In a further embodiment, two limiting sleeves are fixedly connected to the inner bottom wall of the shell, and two limiting rods are fixedly connected to the bottom surface of the connecting plate.

[0008] In a further embodiment, a group of supporting legs are fixedly connected to the bottom surface of the shell, and a sign is fixedly connected to the right side surface of the shell.

[0009] In a further embodiment, a lamp holder is fixedly connected to the inner side wall of the shell, and an LED lighting lamp is fixedly installed on the right side of the lamp holder.

[0010] In a further embodiment, two telescopic rods are fixedly connected to the inner top wall of the shell, and the bottom ends of the two telescopic rods are connected to the upper surface of the connecting plate.

[0011] In a further embodiment, a control panel is fixedly connected to the right side of the shell, and a warning sign is fixedly connected to the back side of the shell.

[0012] Compared with the prior art, the beneficial effects of the utility model are:

[0013] The device is firstly provided with an annular groove, an annular block, a first annular sealing strip and a second annular sealing strip. The annular groove, the annular block, the first annular sealing strip and the second annular sealing strip can be used to make the upper mold body and the lower mold body fit more tightly, so as to prevent the colloid inside the mold from flowing out from the gap between the two molds. Then, a slide groove and a slider are provided, which can play a good limiting role when the electric push rod drives the connecting plate and the upper mold body to rise and fall. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a three-dimensional structural schematic diagram of an injection molding anti-overflow structure.

[0015] Figure 2 It is a three-dimensional structural schematic diagram of the rear view of an injection molding anti-overflow structure.

[0016] Figure 3 It is a cross-sectional view of the side view of an injection molding anti-overflow structure.

[0017] Figure 4 It is an injection molding anti-overflow structure Figure 3 Enlarged structural diagram at A in the middle.

[0018] In the figure: 1. Shell; 2. Lower mold body; 3. Annular groove; 4. First annular sealing strip; 5. Electric push rod; 6. Upper mold body; 7. Annular block; 8. Second annular sealing strip; 9. Slide groove; 10. Slider; 11. Connecting plate; 12. Limit sleeve; 13. Limit rod; 14. Support leg; 15. Sign; 16. Lamp holder; 17. LED lighting; 18. Control panel; 19. Warning sign; 20. Telescopic rod. DETAILED DESCRIPTION

[0019] In the description of the present utility model, it should be understood that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present utility model. In addition, the terms "first", "second", etc. are only used for descriptive purposes, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, features defined as "first", "second", etc. may explicitly or implicitly include one or more of the features. In the description of the present utility model, unless otherwise specified, "multiple" means two or more.

[0020] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be an indirect connection through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood by specific circumstances.

[0021] 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.

[0022] See also Figure 1-4 In the utility model, an injection molding glue overflow prevention structure includes a shell 1, the inner bottom wall of the shell 1 is fixedly connected with a lower mold body 2, the upper surface of the lower mold body 2 is provided with an annular groove 3, the upper surface of the lower mold body 2 is fixedly connected with a first annular sealing strip 4, the inner top wall of the shell 1 is fixedly installed with an electric push rod 5, the output end of the electric push rod 5 is fixedly connected with a connecting plate 11, the bottom surface of the connecting plate 11 is fixedly connected with an upper mold body 6, the bottom surface of the upper mold body 6 is fixedly connected with an annular block 7, the bottom surface of the upper mold body 6 is fixedly connected with a second annular sealing strip 8, the inner side wall of the shell 1 is provided with two slide grooves 9, the interiors of the two slide grooves 9 are slidably connected with sliders 10, and the side surfaces of the two sliders 10 close to each other are respectively connected to the left and right side surfaces of the connecting plate 11.

[0023] Two limiting sleeves 12 are fixedly connected to the inner bottom wall of the shell 1, and two limiting rods 13 are fixedly connected to the bottom surface of the connecting plate 11. The limiting sleeves 12 and the limiting rods 13 can play a good limiting effect when the upper mold body 6 and the lower mold body 2 are die-cast. A group of supporting legs 14 are fixedly connected to the bottom surface of the shell 1, and a sign 15 is fixedly connected to the right side of the shell 1. The sign 15 can facilitate the staff to check the specific usage steps of the device. The inner wall of the shell 1 is fixedly connected to a lamp holder 16, and the right side of the lamp holder 16 is fixedly installed with an LED lamp 17. The LED lamp 17 can provide good lighting effects when working at night.

[0024] Two telescopic rods 20 are fixedly connected to the inner top wall of the shell 1, and the bottom ends of the two telescopic rods 20 are connected to the upper surface of the connecting plate 11. The two telescopic rods 20 can make the electric push rod 5 drive the connecting plate 11 and the upper mold body 6 to rise and fall more stably. A control panel 18 is fixedly connected to the right side of the shell 1, and a warning sign 19 is fixedly connected to the back of the shell 1. The warning sign 19 can serve as a warning effect to non-staff members.

[0025] The working principle of the utility model is:

[0026] When the device is used, the staff first connects the device to an external power source, and then uses the control panel 18 to make the electric push rod 5 drive the connecting plate 11 and the upper mold body 6 to move downward until they fit the interface with the upper surface of the lower mold body 2, so that the annular block 7 enters the interior of the annular groove 3, and at the same time makes the first annular sealing strip 4 and the second annular sealing strip 8 fit together, so that the colloid inside the mold can be prevented from flowing out of the gap between the upper mold body 6 and the lower mold body 2. At this time, injection molding can be carried out. The above is the entire operation process of the device.

[0027] It is obvious to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the present invention can be implemented in other specific forms without departing from the spirit or essential features of the present invention. Therefore, the embodiments should be regarded as exemplary and non-restrictive from any point of view, and the scope of the present invention is defined by the appended claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims be included in the present invention. Any reference numeral in a claim should not be regarded as limiting the claim to which it relates.

[0028] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

Claims

1. A plastic injection glue overflow prevention structure, characterized in that: The invention comprises a shell (1), wherein the inner bottom wall of the shell (1) is fixedly connected to a lower mold body (2), the upper surface of the lower mold body (2) is provided with an annular groove (3), the upper surface of the lower mold body (2) is fixedly connected to a first annular sealing strip (4), the inner top wall of the shell (1) is fixedly installed with an electric push rod (5), the output end of the electric push rod (5) is fixedly connected to a connecting plate (11), the bottom surface of the connecting plate (11) is fixedly connected to an upper mold body (6), the bottom surface of the upper mold body (6) is fixedly connected to an annular block (7), the bottom surface of the upper mold body (6) is fixedly connected to a second annular sealing strip (8), the inner side wall of the shell (1) is provided with two sliding grooves (9), the interiors of the two sliding grooves (9) are both slidably connected to sliders (10), and the sides of the two sliders (10) close to each other are respectively connected to the left and right sides of the connecting plate (11).

2. The anti-overflow structure for injection molding according to claim 1, characterized in that: Two limiting sleeves (12) are fixedly connected to the inner bottom wall of the shell (1), and two limiting rods (13) are fixedly connected to the bottom surface of the connecting plate (11).

3. The anti-overflow structure for injection molding according to claim 1, characterized in that: A group of supporting legs (14) are fixedly connected to the bottom surface of the shell (1), and a sign (15) is fixedly connected to the right side surface of the shell (1).

4. The anti-overflow structure for injection molding according to claim 1, characterized in that: A lamp holder (16) is fixedly connected to the inner side wall of the housing (1), and an LED lighting lamp (17) is fixedly mounted on the right side surface of the lamp holder (16).

5. The anti-overflow structure for injection molding according to claim 1, characterized in that: Two telescopic rods (20) are fixedly connected to the inner top wall of the housing (1), and the bottom ends of the two telescopic rods (20) are connected to the upper surface of the connecting plate (11).

6. The anti-overflow structure for injection molding according to claim 1, characterized in that: A control panel (18) is fixedly connected to the right side of the shell (1), and a warning sign (19) is fixedly connected to the back side of the shell (1).