Injection molding device for dust collector floor brush production

Abstract

The utility model discloses an injection molding device for dust collector floor brush production, which relates to the technical field of dust collector floor brush production appliances, and comprises a lower mold, the middle lower part of the lower mold is of a shell structure, a plurality of positioning holes are equidistantly formed in the peripheries of the front end surface and the top surface, and a mold groove is formed in the front end of the top surface of the lower mold; a semicircular injection molding hole is longitudinally formed in the middle of the rear end of the top surface, and the other end of the semicircular injection molding hole is connected with the mold groove; the lower mold, the upper mold, the side mold and the positioning rod are matched with one another, so that the molds can be conveniently combined into a whole, an internal mold cavity is formed, integral injection molding of an injection molding part is facilitated, the surface smoothness and precision of the injection molding part are ensured, and the integral precision and the surface smoothness of the injection molding part are ensured through sectional assembly, disassembly and assembly of the lower mold, the upper mold and the side mold; and through cooperation of the demolding block and the telescopic rod, an injection molding part bonded on the lower mold can be conveniently ejected and demolded, and finally the problems that the plastic part is damaged, demolding is difficult, and the surface smoothness of the plastic part is not high are solved.

Description

TECHNICAL FIELD

[0001] The utility model relates to a dust collector ground brush production tool technical field especially relates to a kind of injection molding device for dust collector ground brush production. BACKGROUND

[0002] The main components of the existing injection mold include the upper mold, the lower mold, the positioning rod, the injection interface, etc. When the plastic parts are injection molded, due to the various shapes of the plastic parts, it is often difficult to demold due to the concave and convex grooves, bent surfaces, and inclined angles on the surface of the plastic parts, causing damage to the plastic parts, difficulty in demolding, and poor surface finish of the plastic parts. Since the upper and lower molds need to be combined to form a complete mold, the upper and lower molds must be combined at the same horizontal position to meet the injection molding requirements. The upper and lower molds must be connected by guide rods to maintain the same level during use. Therefore, the above technical problems need to be solved. SUMMARY

[0003] The utility model aims at solving the shortcomings in the prior art and provides an injection molding device for dust collector ground brush production.

[0004] To achieve the above-mentioned purpose, the utility model adopts the following technical scheme: an injection molding device for dust collector ground brush production, comprising a lower mold, the lower part of the lower mold is a shell structure, a plurality of positioning holes are evenly arranged on the front end face and the top face, a mold groove is arranged on the front end of the top face of the lower mold, a semicircular injection hole is arranged on the longitudinal middle part of the rear end of the top face, and the other end of the semicircular injection hole is connected with the mold groove.

[0005] Preferably, a demolding module is installed horizontally in the middle of the mold groove, a telescopic rod is arranged at the lower end of the demolding module, the upper end of the telescopic rod penetrates the lower mold and is fixed to the bottom surface of the demolding module, and the telescopic rod is installed on the inner bottom surface of the lower mold.

[0006] Preferably, a positioning rod is installed in the positioning hole arranged on the outer side of the lower mold, and an upper mold is arranged at the upper end of the lower mold. The upper end of the positioning rod penetrates the upper mold.

[0007] Preferably, an air outlet hole is arranged on the front end of the top surface of the upper mold, and positioning holes are arranged on both sides of the upper part of the front end face of the upper mold.

[0008] Preferably, a mold groove is arranged on the front end of the bottom surface of the upper mold, and a semicircular injection hole is arranged on the rear end of the bottom surface of the upper mold.

[0009] Preferably, the lower mold is provided with a side mold at the front end, the front end of the positioning rod penetrates through the side mold, a mold groove is arranged on the upper end of the middle part of the rear end surface of the side mold, and positioning rods are arranged on both sides of the upper end of the rear end surface of the side mold, and the rear end of the positioning rod is arranged in the positioning hole of the upper mold.

[0010] Compared with the prior art, the utility model has the advantages that: in the utility model, the lower mold, the upper mold, the side mold and the positioning rod are matched with each other, so that the mold is formed as a whole, the mold cavity is formed inside, the overall injection molding of the injection molded part is facilitated, the surface finish precision of the injection molded part is ensured, the sectional assembly and disassembly of the lower mold, the upper mold and the side mold are facilitated, the overall precision and the surface finish of the injection molded part are ensured, the injection molded part bonded to the lower mold is facilitated to be ejected by the cooperation of the ejection module and the telescopic rod, and finally the problems of breakage of the plastic part, difficult ejection, low surface finish of the plastic part and the like are solved. BRIEF DESCRIPTION OF DRAWINGS

[0011] The accompanying drawings, which are included to provide a further understanding of the utility model, form a part of the application and serve to explain the utility model. Together with the general description of the utility model given above, the accompanying drawings serve to explain the utility model, and do not limit the utility model in any way. In the drawings:

[0012] Figure 1 The utility model provides a mold overall assembly schematic view;

[0013] Figure 2 The utility model provides a lower mold schematic view;

[0014] Figure 3 The utility model provides an upper mold schematic view;

[0015] Figure 4 The utility model provides a side mold schematic view;

[0016] In the drawings, serial number: 1, lower mold; 2, upper mold; 3, side mold; 4, positioning rod; 5, telescopic rod; 6, ejection module. DETAILED DESCRIPTION

[0017] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments of the utility model.

[0018] Embodiment: refer to Figures 1-4This utility model discloses an injection molding device for producing vacuum cleaner floor brushes, comprising a lower mold 1. The lower part of the lower mold 1 is a shell structure, with multiple positioning holes equidistantly opened around the front and top surfaces. A mold groove is opened at the front end of the top surface of the lower mold 1, and a semi-circular injection hole is opened in the longitudinal center of the rear end of the top surface. The other end of the semi-circular injection hole is connected to the mold groove. A release module 6 is horizontally installed in the middle of the mold groove. A telescopic rod 5 is provided at the lower end of the release module 6. The upper end of the telescopic rod 5 passes through the lower mold 1 and is fixedly connected to the bottom surface of the release module 6. The telescopic rod 5 is installed on the inner bottom surface of the lower mold 1. A positioning rod 4 is installed in the positioning hole opened on the outer side of the lower mold 1, and an upper mold 2 is provided at the upper end of the lower mold 1. The upper end of 4 penetrates through the upper mold 2; the front end of the top face of the upper mold 2 is provided with an air vent, and the upper sides of the front face of the upper mold 2 are provided with positioning holes; the front end of the bottom face of the upper mold 2 is provided with a mold groove, and the rear end of the bottom face of the upper mold 2 is provided with a semi-circular injection hole; the front end of the lower mold 1 is equipped with a side mold 3, the front end of the front positioning rod 4 penetrates through the side mold 3, the upper end of the middle of the rear face of the side mold 3 is provided with a mold groove, and the upper sides of the rear face of the side mold 3 are provided with positioning rods 4, the rear end of the positioning rods 4 is placed in the positioning hole of the upper mold 2; the lower mold 1, the upper mold 2, and the side mold 3 are integrated into a whole by the positioning rods 4, which facilitates the combination of the mold cavities inside the mold; the semi-circular injection holes of the upper mold 2 and the lower mold 1 facilitate the injection of molten plastic into the mold cavity; the air vent on the top face of the upper mold 2 facilitates the discharge of air from the mold cavity; the demolding module 6 and the telescopic rod 5 cooperate to facilitate the ejection and demolding of the injection molded part bonded to the lower mold 1 during demolding.

[0019] Working principle: When using this utility model, firstly, during injection molding, the lower mold 1, upper mold 2, and side mold 3 are combined into a whole by the positioning rod 4, which facilitates the overall assembly of the mold cavity. The molten plastic is easily injected into the mold cavity through the semi-circular injection holes of the upper mold 2 and the lower mold 1. The air is easily discharged from the mold cavity through the air outlet on the top surface of the upper mold 2.

[0020] After the injection molded part inside the mold cavity cools down, during demolding, firstly, the positioning rod 4 installed on the upper end of the side mold 3 is removed to remove the degree of freedom restriction of the upper mold 2. The positioning rod 4 on the top surface of the lower mold 1 facilitates the vertical upward removal of the upper mold 2. The positioning rod 4 at the front end of the lower mold 1 facilitates the parallel forward removal of the side mold 3. Through the cooperation of the demolding module 6 and the telescopic rod 5, the injection molded part bonded to the lower mold 1 is ejected and demolded. Finally, the shape of the injection molded part is trimmed and excess plastic is removed.

[0021] The above merely describes a preferred embodiment of the present application, and the protection scope of the present application is not limited thereto, and any skilled person in the art, according to the technical scheme and the inventive concept of the present application, makes equivalent replacement or change within the technical range disclosed by the present application, which should be covered within the protection scope of the present application.

Claims

1. An injection molding device for producing vacuum cleaner floor brushes, comprising a lower mold (1), characterized in that: The lower part of the lower mold (1) is a shell structure. Multiple positioning holes are equidistantly provided on the front end and the top surface. A mold groove is provided at the front end of the top surface of the lower mold (1), and a semi-circular injection hole is provided in the longitudinal middle of the rear end of the top surface. The other end of the semi-circular injection hole is connected to the mold groove.

2. The injection molding device for producing vacuum cleaner floor brushes according to claim 1, characterized in that: A release module (6) is horizontally installed in the middle of the mold groove. A telescopic rod (5) is provided at the lower end of the release module (6). The upper end of the telescopic rod (5) passes through the lower mold (1) and is fixedly connected to the bottom surface of the release module (6). The telescopic rod (5) is installed on the inner bottom surface of the lower mold (1).

3. The injection molding device for producing vacuum cleaner floor brushes according to claim 1, characterized in that: A positioning rod (4) is installed in the positioning hole on the outside of the lower mold (1), and an upper mold (2) is provided at the upper end of the lower mold (1), with the upper end of the positioning rod (4) penetrating through the upper mold (2).

4. The injection molding device for producing vacuum cleaner floor brushes according to claim 3, characterized in that: The upper mold (2) has an air vent at the front end of its top surface, and positioning holes are provided on both sides of the upper part of the front surface of the upper mold (2).

5. The injection molding device for producing vacuum cleaner floor brushes according to claim 3, characterized in that: The upper mold (2) has a mold groove at the front end of its bottom surface and a semi-circular injection hole at the rear end of its bottom surface.

6. The injection molding device for producing vacuum cleaner floor brushes according to claim 3, characterized in that: The lower mold (1) is equipped with a side mold (3) at its front end. The front end of the positioning rod (4) passes through the side mold (3). A mold groove is opened at the upper end of the middle of the rear end face of the side mold (3). Positioning rods (4) are installed on both sides of the upper end of the rear end face of the side mold (3). The rear end of the positioning rod (4) is placed in the positioning hole of the upper mold (2).

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