Dust collector injection mold capable of preventing adhesion

Abstract

The utility model discloses an anti-adhesion dust collector injection mold which comprises an upper mold base, a plurality of lubricant spraying pieces and a plurality of cooling pipelines are arranged in the upper mold base, and a convex mold is arranged on the upper mold base; an injection molding cavity, a pneumatic ejector pin and a stretching air cylinder are arranged on the lower mold base, the stretching air cylinder is connected to the stripping block and upwards penetrates through the lower mold base to be connected with the stripping plate, a female mold cavity is formed in the stripping plate, the female mold cavity and the male mold define a forming cavity, the pneumatic ejector pin extends to the bottom of the female mold cavity, and the injection molding cavity extends to the bottom of the female mold cavity and is communicated with the female mold cavity. According to the utility model, the plurality of lubricant spraying pieces are arranged on the upper mold base, and before the upper mold base and the lower mold base are subjected to mold closing injection molding every time, the micro telescopic cylinder stretches out and draws back to drive the blocking block to move downwards so as to drive the spray head to move downwards, so that the spray hole is exposed to spray lubricant to the female mold and lubricate the injection molding cavity, and adhesion during demolding is avoided; the injection molding quality is improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of injection molds, and in particular relates to an injection mold for a vacuum cleaner capable of preventing adhesion. Background Art

[0002] Vacuum cleaner injection molds are molds specifically used to make vacuum cleaner shells and other related plastic parts. According to current technological developments, the design, manufacturing, and material selection of vacuum cleaner injection molds have reached a high level.

[0003] First of all, in terms of mold design, vacuum cleaner injection molds are usually designed using advanced CAD / CAM technology to ensure the rationality of the mold structure and the accuracy of the precision. The shape, size and wall thickness of the product will be considered during the design process to optimize the fluidity and molding effect of the plastic. At the same time, the mold will also be equipped with a reasonable cooling system to speed up the cooling speed and improve production efficiency.

[0004] In terms of material selection, vacuum cleaner injection molds usually use high-strength, high-wear-resistant mold steel as the material to ensure the durability and precision stability of the mold. In addition, some advanced mold materials, such as pre-hardened steel and corrosion-resistant alloy steel, are also widely used in the manufacture of vacuum cleaner injection molds to improve the performance and life of the mold.

[0005] However, the existing vacuum cleaner injection mold still has certain deficiencies in anti-adhesion technology. During the vacuum cleaner injection molding process, adhesion often occurs due to the contact between the stickiness of the plastic and the mold surface. Adhesion not only affects the appearance quality of the product, but may also cause deviation in product size and damage to the mold. Utility Model Content

[0006] The purpose of the utility model is to solve the problem that the existing vacuum cleaner injection mold still has certain deficiencies in anti-adhesion technology. During the vacuum cleaner injection molding process, adhesion often occurs due to the contact between the viscosity of the plastic and the mold surface. Adhesion not only affects the appearance quality of the product, but also may cause deviation in product size and damage to the mold. Therefore, a vacuum cleaner injection mold that prevents adhesion is proposed.

[0007] In order to achieve the above-mentioned purpose, the utility model adopts the following technical solution: an injection mold for a vacuum cleaner to prevent adhesion, comprising:

[0008] An upper die base, wherein a plurality of lubricant injection parts and a plurality of cooling pipes are arranged in the upper die base, and a punch is arranged on the upper die base;

[0009] The lower die base is provided with an injection cavity, a pneumatic ejector and a stretching cylinder. The stretching cylinder is connected to the stripping block and passes upward through the lower die base to connect to the stripping plate. The stripping plate is provided with a die cavity. The die cavity and the punch enclosure form a molding cavity. The pneumatic ejector extends to the bottom of the die cavity, and the injection cavity extends to the bottom of the die cavity and is communicated with the die cavity.

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

[0011] The lower die base is provided with an inclined hole, the stripping block is provided with a guide shaft, and the guide shaft matches the inclined hole.

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

[0013] A plurality of the cooling pipes are arranged in a matrix at the bottom of a plurality of the lubricant spraying parts.

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

[0015] The injection cavity is located between the pneumatic ejector pin and the stretching cylinder.

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

[0017] A moving cavity is arranged on the stripping plate, a buffer cavity is arranged on the top of the lower die base, one end of the stretching cylinder is connected to the lower die base, a buffer spring is sleeved on the stretching cylinder, a limit block is arranged on the other end of the stretching cylinder, and the limit block is slidably connected in the moving cavity.

[0018] As a further description of the above technical solution:

[0019] The lubricant injection component includes a micro-telescopic cylinder, a liquid guide tube, a blocking block and a nozzle. The micro-telescopic cylinder is connected to the upper mold base, the liquid guide tube is connected to the micro-telescopic cylinder, the blocking block is connected to the end of the micro-telescopic cylinder, the nozzle is connected to the bottom of the blocking block, and a plurality of spray holes are arranged on the nozzle, and the spray holes are communicated with the liquid guide tube.

[0020] In summary, due to the adoption of the above technical solution, the beneficial effects of the utility model are:

[0021] In the utility model, a plurality of lubricant injection parts are arranged on the upper mold base, and the lubricant injection parts include a micro telescopic cylinder, a liquid guide tube, a blocking block and a nozzle. Before each upper mold base and a lower mold base are molded together for injection molding, the micro telescopic cylinder is extended and retracted to drive the blocking block to move downward and then drive the nozzle to move downward, so that the spray hole is exposed to spray lubricant on the concave mold, lubricate the injection cavity thereof, avoid adhesion during demolding, and greatly improve the injection molding quality. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] 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.

[0023] Figure 1 The present invention is a schematic diagram of the mold opening structure of an injection mold for a vacuum cleaner that prevents adhesion.

[0024] Figure 2 The figure is a schematic diagram of the mold closing structure in a vacuum cleaner injection mold for preventing adhesion.

[0025] Figure 3 The present invention is a schematic diagram of the structure of a lubricant injection part in an injection mold for a vacuum cleaner to prevent adhesion.

[0026] Figure 4 for Figure 3 Schematic diagram of the structure at point A in the middle.

[0027] Legend:

[0028] 1-upper die base; 2-lubricant injection part; 21-micro telescopic cylinder; 22-liquid guide tube; 23-blocking block; 24-nozzle; 3-cooling pipeline; 4-punch; 5-lower die base; 6-injection cavity; 7-pneumatic ejector; 8-stretching cylinder; 9-stripping plate; 10-die cavity; 11-oblique hole; 12-guide shaft; 13-moving cavity; 14-buffer cavity; 15-buffer spring; 16-limiting block; 17-spray hole; 18-stripping block. DETAILED DESCRIPTION

[0029] 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.

[0030] 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.

[0031] 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.

[0032] 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.

[0033] 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.

[0034] 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.

[0035] See also Figure 1-4 The utility model provides a technical solution: an injection mold for a vacuum cleaner that prevents adhesion, comprising:

[0036] An upper die base 1, wherein a plurality of lubricant injection parts 2 and a plurality of cooling pipes 3 are arranged in the upper die base 1, and a punch 4 is arranged on the upper die base 1;

[0037] The lower die base 5 is provided with an injection cavity 6, a pneumatic ejector 7 and a stretching cylinder 8. The stretching cylinder 8 is connected to the stripping block 18 and passes upward through the lower die base to connect to the stripping plate 9. The stripping plate 9 is provided with a die cavity 10. The die cavity 10 and the punch 4 surround to form a molding cavity. The pneumatic ejector 7 extends to the bottom of the die cavity 10, and the injection cavity 6 extends to the bottom of the die cavity 10 and is communicated with the die cavity 10.

[0038] The lower die base 5 is provided with an inclined hole 11 , and the stripping block 18 is provided with a guide shaft 12 , and the guide shaft 12 matches the inclined hole 11 .

[0039] The plurality of cooling pipes 3 are arranged in a matrix at the bottom of the plurality of lubricant spraying parts 2 .

[0040] The injection cavity 6 is located between the pneumatic ejector pin 7 and the stretching cylinder 8 .

[0041] A movable cavity 13 is provided on the stripping plate 9, a buffer cavity 14 is provided on the top of the lower die base 5, one end of the stretching cylinder 8 is connected to the lower die base 5, a buffer spring 15 is sleeved on the stretching cylinder 8, and a limit block 16 is provided at the other end of the stretching cylinder 8, and the limit block 16 is slidably connected in the movable cavity 13.

[0042] The lubricant injection component 2 includes a micro-telescopic cylinder 21, a liquid guide tube 22, a blocking block 23 and a nozzle 24. The micro-telescopic cylinder 21 is connected to the upper mold base 1, the liquid guide tube 22 is connected to the micro-telescopic cylinder 21, the blocking block 23 is connected to the end of the micro-telescopic cylinder 21, and the nozzle 24 is connected to the bottom of the blocking block 23. A plurality of spray holes 17 are provided on the nozzle 24, and the spray holes 17 are communicated with the liquid guide tube 22.

[0043] Working principle: By arranging several lubricant injection parts on the upper mold base, the lubricant injection parts include a micro telescopic cylinder, a liquid guide tube, a blocking block and a nozzle. Before each upper mold base and lower mold base are molded together for injection, the micro telescopic cylinder is extended and retracted to drive the blocking block to move downward and then drive the nozzle to move downward, exposing the spray hole to spray lubricant on the die, lubricating the injection cavity, avoiding adhesion during demolding, and greatly improving the injection quality.

[0044] 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 vacuum cleaner injection mold to prevent adhesion, characterized in that: include: An upper die base, wherein a plurality of lubricant injection parts and a plurality of cooling pipes are arranged in the upper die base, and a punch is arranged on the upper die base; The lower die base is provided with an injection cavity, a pneumatic ejector and a stretching cylinder. The stretching cylinder is connected to the stripping block and passes upward through the lower die base to be connected to the stripping plate. The stripping plate is provided with a die cavity. The die cavity and the punch enclosure form a molding cavity. The pneumatic ejector extends to the bottom of the die cavity, and the injection cavity extends to the bottom of the die cavity and is communicated with the die cavity.

2. The anti-adhesion vacuum cleaner injection mold according to claim 1, characterized in that: The lower die base is provided with an inclined hole, the stripping block is provided with a guide shaft, and the guide shaft matches the inclined hole.

3. The anti-adhesion vacuum cleaner injection mold according to claim 2, characterized in that: A plurality of the cooling pipes are arranged in a matrix at the bottom of a plurality of the lubricant spraying parts.

4. The anti-adhesion vacuum cleaner injection mold according to claim 1, characterized in that: The injection cavity is located between the pneumatic ejector pin and the stretching cylinder.

5. The anti-adhesion vacuum cleaner injection mold according to claim 4, characterized in that: A moving cavity is arranged on the stripping plate, a buffer cavity is arranged on the top of the lower die base, one end of the stretching cylinder is connected to the lower die base, a buffer spring is sleeved on the stretching cylinder, a limit block is arranged on the other end of the stretching cylinder, and the limit block is slidably connected in the moving cavity.

6. The anti-adhesion vacuum cleaner injection mold according to claim 1, characterized in that The lubricant injection component includes a miniature telescopic cylinder, a liquid guide tube, a blocking block and a nozzle. The miniature telescopic cylinder is connected to the upper mold base, the liquid guide tube is connected to the miniature telescopic cylinder, the blocking block is connected to the end of the miniature telescopic cylinder, the nozzle is connected to the bottom of the blocking block, and a plurality of spray holes are arranged on the nozzle, and the spray holes are communicated with the liquid guide tube.

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