Supplementary feeding injection mold of floor brush shell part

Abstract

The utility model discloses a supplementary feeding injection mold for a floor brush shell part, which comprises an upper mold, a lower mold, a feeding mechanism and a feeding mechanism, wherein an upper mold cavity and a plurality of first cooling pipelines are arranged in the upper mold; the lower die comprises a stripper plate, a lower cushion plate, a lower die plate and a lower die base, a forming cavity is formed in the stripper plate, the forming cavity and the upper die cavity define a finished product cavity, feeding ports are formed in the two sides of the bottom of the forming cavity, a plurality of second cooling pipelines are arranged at the bottom of the forming cavity, and an ejection piece and a telescopic air cylinder are arranged in the lower die. The telescopic air cylinder penetrates through the lower die base, the lower die plate and the lower cushion plate to be connected to the stripper plate. According to the utility model, the feeding holes are formed in the two sides of the bottom of the molding cavity, so that materials overflow upwards from the bottom, and the situation that the molding cavity cannot be filled with the materials and the molding effect of an injection molding part is influenced due to the fact that the section of the sprue gate is too small during pouring from top to bottom is avoided; and a plurality of first cooling pipelines and a plurality of second cooling pipelines are respectively arranged at the upper part and the lower part of the finished product cavity, so that the cooling effect of the whole cooling system is ensured.

Description

Technical Field

[0001] The utility model belongs to the technical field of injection molds, and in particular relates to a supplementary feeding injection mold for a floor brush shell. Background Art

[0002] The injection mold for floor brush housing is a key tool for manufacturing floor brush housings. With the development of modern industry, the requirements for the quality and production efficiency of floor brush housings are increasing.

[0003] During the design and manufacturing process of the traditional injection mold for the floor brush housing, the gate cross-section of the runner design is too small, resulting in poor flow of plastic in the mold, affecting the molding effect of the injection molded parts. In addition, the cooling system of the mold is not evenly cooled, resulting in deformation and warping of the injection molded parts. Utility Model Content

[0004] The purpose of the utility model is to propose a supplementary feed injection mold for floor brush shell parts in order to solve the problems that during the design and manufacturing process of traditional floor brush shell injection molds, the gate cross-section of the runner design is too small, resulting in poor flow of plastic in the mold, affecting the molding effect of the injection molded parts, and the cooling system of the mold is not uniformly cooled, resulting in deformation and warping of the injection molded parts.

[0005] In order to achieve the above-mentioned purpose, the utility model adopts the following technical solution: a supplementary feeding injection mold for a floor brush housing, comprising:

[0006] An upper mold, wherein an upper mold cavity and a plurality of first cooling pipes are arranged in the upper mold;

[0007] The lower mold comprises a stripper plate, a lower pad, a lower template and a lower mold base, the stripper plate is provided with a molding cavity, the molding cavity and the upper mold cavity enclosure form a finished product cavity, feed ports are provided on both sides of the bottom of the molding cavity, a plurality of second cooling pipes are provided at the bottom of the molding cavity, an ejector and a telescopic cylinder are provided in the lower mold, the telescopic cylinder passes through the lower mold base, the lower template and the lower pad and is connected to the stripper plate.

[0008] As a further description of the above technical solution:

[0009] The ejector comprises an inclined wedge block and a buffer ejector body, the lower pad is provided with a guide block, the guide block is provided with a guide groove, the inclined wedge block is connected in the lower die base, the bottom of the buffer ejector body is slidably connected to the inclined wedge block, and the top passes through the guide block.

[0010] As a further description of the above technical solution:

[0011] A guide block which is wide at the top and narrow at the bottom is arranged on the top of the buffer ejection body, and the guide block matches the guide groove.

[0012] As a further description of the above technical solution:

[0013] A guide shaft is arranged in the lower template, an oblique guide hole is arranged on the oblique wedge block, and the guide shaft is movably connected in the oblique guide hole.

[0014] As a further description of the above technical solution:

[0015] A plurality of the first cooling pipes and a plurality of the second cooling pipes are evenly arranged on the outer sides of the upper mold cavity and the molding cavity, respectively.

[0016] As a further description of the above technical solution:

[0017] The lower mold plate and the lower mold base are connected via lower mold legs.

[0018] In summary, due to the adoption of the above technical solution, the beneficial effects of the utility model are:

[0019] 1. In the utility model, the feed port is arranged on both sides of the bottom of the molding cavity, so that the material overflows from the bottom to the top, and it is avoided that the cross-section of the pouring port is too small when pouring from top to bottom, so that the molding cavity cannot be filled with material, affecting the molding effect of the injection molded part. At the same time, a plurality of first cooling pipes and a plurality of second cooling pipes are respectively arranged above and below the finished product cavity to ensure the cooling effect of the entire cooling system, thereby greatly improving the production effect of the injection molded parts.

[0020] 2. In the utility model, by arranging the telescopic cylinder and the ejector in conjunction with the guide shaft, after the injection molding is completed, the ejector will not move when ejecting the material, and the material can be removed accurately, which greatly improves the removal efficiency and ensures the production quality. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In order to more clearly illustrate the technical solutions of the embodiments of the utility model, the drawings required for use in the embodiments will be briefly introduced below. It should be understood that the following drawings only show certain embodiments of the utility model and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other relevant drawings can be obtained based on these drawings without paying creative work.

[0022] Figure 1 This is a state diagram of the mold opening in a supplementary feeding injection mold for a floor brush shell.

[0023] Figure 2 This is a diagram of the closed mold state in a supplementary feeding injection mold for a floor brush housing.

[0024] Figure 3The present invention is a schematic structural diagram of an upper mold in a supplementary feeding injection mold for a floor brush housing.

[0025] Legend:

[0026] 1-upper die; 2-upper die cavity; 3-first cooling duct; 4-lower die; 41-stripper plate; 42-lower pad; 43-lower die plate; 44-lower die base; 5-molding cavity; 6-feed port; 7-second cooling duct; 8-ejector; 81-oblique wedge block; 82-buffer ejector body; 9-telescopic cylinder; 10-guide block; 11-guiding groove; 12-guiding block; 13-guide shaft; 14-oblique guide hole; 15-lower die support foot. DETAILED DESCRIPTION

[0027] 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 of 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.

[0028] In order to make the purpose, technical scheme and advantages of the embodiments of the utility model clearer, the technical scheme in the embodiments of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiments of the utility model. Obviously, the described embodiments are part of the embodiments of the utility model, not all of the embodiments. Generally, the components of the embodiments of the utility model described and shown in the drawings here can be arranged and designed in various different configurations.

[0029] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the present invention to be protected, but merely represents selected embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0030] It should be noted that similar reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined in one drawing, further definition and explanation thereof is not required in subsequent drawings.

[0031] In the description of the embodiments of the present utility model, it should be noted that the terms "upper", "inner", etc. indicate directions or positional relationships based on the directions or positional relationships shown in the accompanying drawings, or are directions or positional relationships in which the utility model product is usually placed when in use. They are only for the convenience of describing the present utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore cannot be understood as a limitation on the present utility model.

[0032] In the description of the present invention, it is also necessary to explain that, unless otherwise clearly specified and limited, the terms "set", "install", "connect", and "connect" 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 direct connection, or 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 according to specific circumstances.

[0033] See also Figure 1-3 The utility model provides a technical solution: a supplementary feeding injection mold for a floor brush housing, comprising:

[0034] An upper mold 1, wherein an upper mold cavity 2 and a plurality of first cooling pipes 3 are arranged in the upper mold 1;

[0035] The lower mold 4 includes a stripper plate 41, a lower pad 42, a lower mold plate 43 and a lower mold base 44. A molding cavity 5 is arranged on the stripper plate 41. The molding cavity 5 and the upper mold cavity 2 are enclosed to form a finished product cavity. Feed ports 6 are arranged on both sides of the bottom of the molding cavity 5. A plurality of second cooling pipes 7 are arranged at the bottom of the molding cavity 5. An ejector 8 and a telescopic cylinder 9 are arranged in the lower mold. The telescopic cylinder 9 passes through the lower mold base 44, the lower mold plate 43 and the lower pad 42 and is connected to the stripper plate 41.

[0036] The ejector 8 includes an inclined wedge block 81 and a buffer ejector body 82. A guide block 10 is provided on the lower pad 42. A guide groove 11 is provided on the guide block 10. The inclined wedge block 81 is connected to the lower die base 44. The bottom of the buffer ejector body 82 is slidably connected to the inclined wedge block 81, and the top passes through the guide block 10.

[0037] A guide block 12 which is wide at the top and narrow at the bottom is disposed on the top of the buffer ejection body 82 , and the guide block 12 matches the guide groove 11 .

[0038] A guide shaft 13 is provided in the lower die plate 4 , and an oblique guide hole 14 is provided on the oblique wedge block 81 . The guide shaft 13 is movably connected in the oblique guide hole 14 .

[0039] A plurality of the first cooling pipes 3 and a plurality of the second cooling pipes 7 are evenly arranged on the outer sides of the upper mold cavity 2 and the molding cavity 5 , respectively.

[0040] The lower mold plate 43 and the lower mold base 44 are connected via the lower mold legs 15 .

[0041] Working principle: By setting the feed port on both sides of the bottom of the molding cavity, the material overflows from the bottom to the top, avoiding the small cross-section of the pouring port when pouring from top to bottom, so that the molding cavity cannot be filled with material, affecting the molding effect of the injection molded parts. At the same time, a number of first cooling pipes and a number of second cooling pipes are respectively set up above and below the finished product cavity to ensure the cooling effect of the entire cooling system, which greatly improves the production effect of the injection molded parts. At the same time, by setting a telescopic cylinder and an ejector with a guide shaft, after the injection molding is completed, the ejector will not move, and the material can be removed accurately, which greatly improves the removal efficiency and ensures the production quality.

[0042] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes within the technical scope disclosed by the present invention according to the technical scheme and the utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A supplementary feeding injection mold for a floor brush housing, characterized in that: include: An upper mold, wherein an upper mold cavity and a plurality of first cooling pipes are arranged in the upper mold; The lower mold comprises a stripper plate, a lower pad, a lower template and a lower mold base, the stripper plate is provided with a molding cavity, the molding cavity and the upper mold cavity enclosure form a finished product cavity, feed ports are provided on both sides of the bottom of the molding cavity, a plurality of second cooling pipes are provided at the bottom of the molding cavity, an ejector and a telescopic cylinder are provided in the lower mold, the telescopic cylinder passes through the lower mold base, the lower template and the lower pad and is connected to the stripper plate.

2. A supplementary feeding injection mold for a floor brush housing according to claim 1, characterized in that: The ejector comprises an inclined wedge block and a buffer ejector body, the lower pad is provided with a guide block, the guide block is provided with a guide groove, the inclined wedge block is connected in the lower die base, the bottom of the buffer ejector body is slidably connected to the inclined wedge block, and the top passes through the guide block.

3. A supplementary feeding injection mold for a floor brush housing according to claim 2, characterized in that: A guide block which is wide at the top and narrow at the bottom is arranged on the top of the buffer ejection body, and the guide block matches the guide groove.

4. A supplementary feeding injection mold for a floor brush housing according to claim 2, characterized in that: A guide shaft is arranged in the lower template, an oblique guide hole is arranged on the oblique wedge block, and the guide shaft is movably connected in the oblique guide hole.

5. A supplementary feeding injection mold for a floor brush housing according to claim 4, characterized in that: A plurality of the first cooling pipes and a plurality of the second cooling pipes are evenly arranged on the outer sides of the upper mold cavity and the molding cavity, respectively.

6. A supplementary feeding injection mold for a floor brush housing according to claim 1, characterized in that , the lower mold plate and the lower mold base are connected through the lower mold support feet.

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