Microporous breathable plastic mold

Abstract

The utility model discloses a microporous breathable plastic mold which comprises a bottom plate, an ejection mechanism is arranged above the bottom plate, a fixed seat is fixed above the bottom plate, a lower mold is mounted above the fixed seat, a cooling mechanism is arranged in the lower mold, a breathable hole is formed in one side of the lower mold, and a vent hole is formed in the other side of the lower mold. A positioning hole is formed in the upper portion of the lower die, and a positioning column penetrates through the upper portion of the positioning hole. According to the microporous breathable plastic mold, through cooperative use of the ejection mechanism, after a plastic product is formed, the hydraulic cylinder can drive the stripper plate to ascend and descend, so that the ejector pin is driven to stretch out of the interior of the lower mold, the formed plastic product can be ejected out through the ejector pin, and demolding of the product is achieved; rapid opening and closing of the mold and continuous demolding of a product are achieved, so that the production period is shortened, the production efficiency is improved, accurate control over the demolding speed and strength can be achieved through the hydraulic cylinder, and too large impact and damage to the mold and the product are avoided.

Description

Technical Field

[0001] The utility model relates to the technical field related to plastic molds, in particular to a microporous breathable plastic mold. Background Art

[0002] A plastic mold is a combined plastic mold used for compression molding, extrusion molding, injection molding, blow molding and low-foaming molding. It uses a closed cavity of a specific shape and size to inject molten plastic material into it, and forms the desired plastic product after cooling. According to different molding methods, plastic molds can be divided into many types, such as injection molding molds, extrusion molding molds, blow molding molds, compression molds, etc. Microporous breathable plastic molds are molds used to produce breathable plastic products with micron-level pore structures. This mold can accurately control the flow and solidification of plastic during the molding process, thereby forming evenly distributed tiny pores in the product, giving the product breathable, waterproof, anti-fouling, UV resistance and other properties.

[0003] However, the demolding process of existing plastic molds requires manual participation during use, the demolding efficiency is low, and it is not convenient to continuously process plastic products. Therefore, this application provides a microporous breathable plastic mold to meet the needs. Utility Model Content

[0004] The purpose of the present invention is to provide a microporous breathable plastic mold to solve the problems raised in the above background technology.

[0005] To achieve the above-mentioned object, the present invention provides the following technical solution: a microporous breathable plastic mold, comprising a bottom plate, an ejection mechanism is provided above the bottom plate, a fixing seat is fixed above the bottom plate, a lower mold is installed above the fixing seat, a cooling mechanism is provided inside the lower mold, a ventilation hole is opened on one side of the lower mold, a positioning hole is opened above the lower mold, a positioning column is passed through the top of the positioning hole, an upper mold is fixed above the positioning column, and a limit plate is installed above the upper mold;

[0006] The ejection mechanism includes a hydraulic cylinder, a hydraulic rod, a stripper plate, an ejector pin, a spring and a guide column. The hydraulic cylinder is installed above the base plate. The hydraulic rod is installed above the hydraulic cylinder. The stripper plate is fixed above the hydraulic rod. The ejector pin is fixed above the stripper plate. The outer side of the ejector pin is provided with a spring. Guide columns are passed through both sides above the stripper plate.

[0007] Preferably, the stripping plate forms a lifting structure with the bottom plate through a hydraulic cylinder, and the hydraulic cylinder is symmetrically arranged with respect to the central axis of the bottom plate.

[0008] Preferably, the ejector pin forms a telescopic structure with the lower die through a spring, and the ejector pin and the spring are used in conjunction with each other.

[0009] Preferably, the cooling mechanism includes a cooling pipe, a connecting port and a sealing head. The cooling pipe is installed inside the lower mold. Connecting ports are fixed at both ends of the cooling pipe. The sealing head is installed inside the connecting port.

[0010] Preferably, the inner side of the connecting port and the outer side of the sealing head are both threaded, and the sealing head is threadedly connected to the connecting port.

[0011] Preferably, the diameter of the positioning column is consistent with the diameter of the positioning hole, and the upper mold is movably connected to the lower mold through the positioning column.

[0012] Compared with the prior art, the beneficial effects of the present invention are:

[0013] 1. This microporous breathable plastic mold, through the use of an ejector mechanism, after the plastic product is molded, can drive the stripper plate to rise and fall through the hydraulic cylinder, thereby driving the ejector pin to extend inside the lower mold. The ejector pin can eject the molded plastic product, thereby realizing product demoulding, achieving rapid mold opening and closing and continuous product demoulding, thereby shortening the production cycle and improving production efficiency. The hydraulic cylinder can achieve precise control of the demoulding speed and force to avoid excessive impact and damage to the mold and product.

[0014] 2. This microporous breathable plastic mold, through the setting of the cooling mechanism, can quickly cool the plastic product inside the lower mold by injecting cooling water into the cooling pipe, thereby improving the molding efficiency of the plastic product, and the sealing head can block the connection port when the cooling pipe is not in use to prevent dust from entering the connection port and causing blockage. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is a schematic diagram of the overall structure of the utility model;

[0016] Figure 2 This is a schematic diagram of the structure of the bottom plate of the utility model;

[0017] Figure 3 This is a structural diagram of the ejection mechanism of the utility model;

[0018] Figure 4 This is a schematic diagram of the structure of the cooling mechanism of the utility model;

[0019] Figure 5 It is a structural schematic diagram of the upper mold of the utility model.

[0020] In the figure: 1. Base plate; 2. Ejector mechanism; 201. Hydraulic cylinder; 202. Hydraulic rod; 203. Stripper plate; 204. Ejector pin; 205. Spring; 206. Guide column; 3. Fixed seat; 4. Lower die; 5. Cooling mechanism; 501. Cooling pipe; 502. Connecting port; 503. Sealing head; 6. Air vent; 7. Positioning hole; 8. Positioning column; 9. Upper die; 10. Limit plate. DETAILED DESCRIPTION

[0021] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0022] See also Figure 1-5 The utility model provides a technical solution: a microporous breathable plastic mold, comprising a base plate 1, an ejection mechanism 2 is arranged above the base plate 1, a fixing seat 3 is fixed above the base plate 1, a lower mold 4 is installed above the fixing seat 3, a cooling mechanism 5 is arranged inside the lower mold 4, the cooling mechanism 5 comprises a cooling pipe 501, a connecting port 502 and a sealing head 503, the cooling pipe 501 is installed inside the lower mold 4, both ends of the cooling pipe 501 are fixed with connecting ports 502, and a sealing head 503 is installed inside the connecting port 502. By injecting cooling water into the cooling pipe 501, the plastic product inside the lower mold 4 can be quickly cooled, thereby improving the molding efficiency of the plastic product. The inner side of the connecting port 502 and the outer side of the sealing head 503 are both threaded. The sealing head 503 is threadedly connected to the connecting port 502. The sealing head 503 can block the connecting port 502 when the cooling pipe 501 is not in use to prevent dust from entering the connecting port 502 and causing blockage. A vent hole 6 is provided on one side of the lower mold 4, and a positioning hole 7 is provided above the lower mold 4. A positioning column 8 passes through the top of the positioning hole 7. An upper mold 9 is fixed above the positioning column 8. The diameter of the positioning column 8 is consistent with the diameter of the positioning hole 7. The upper mold 9 is movably connected to the lower mold 4 through the positioning column 8, ensuring that the upper mold 9 and the lower mold 4 can be accurately closed. A limit plate 10 is installed above the upper mold 9.

[0023] See also Figure 2-3The ejection mechanism 2 includes a hydraulic cylinder 201, a hydraulic rod 202, a stripper plate 203, an ejector pin 204, a spring 205 and a guide column 206. The hydraulic cylinder 201 is installed above the bottom plate 1. The hydraulic rod 202 is installed above the hydraulic cylinder 201. The stripper plate 203 is fixed above the hydraulic rod 202. The stripper plate 203 forms a lifting structure with the bottom plate 1 through the hydraulic cylinder 201. The hydraulic cylinder 201 is symmetrically arranged with the central axis of the bottom plate 1. The hydraulic cylinder 201 can drive the stripper plate 203 to rise and fall, thereby driving the ejector pin 204 to extend inside the lower mold 4. The hydraulic cylinder 201 can In order to achieve precise control of the demoulding speed and force and avoid excessive impact and damage to the mold and product, a pin 204 is fixed above the stripper plate 203. The pin 204 forms a telescopic structure with the lower mold 4 through a spring 205. The pin 204 and the spring 205 are used in conjunction with the pin 204 to eject the molded plastic product, thereby realizing the demoulding of the product, realizing rapid opening and closing of the mold and continuous demoulding of the product, thereby shortening the production cycle and improving production efficiency. The outer side of the pin 204 is provided with a spring 205, and guide pillars 206 are passed through both sides of the upper side of the stripper plate 203.

[0024] Working principle: When using the microporous breathable plastic mold, first turn on the external power supply, then close the upper mold 9 and the lower mold 4, inject the melted plastic raw material into the upper mold 9, and at the same time inject cooling water into the cooling pipe 501 to quickly cool the plastic raw material inside the lower mold 4, thereby improving the molding efficiency of the plastic product. After the plastic product is formed, the upper mold 9 and the lower mold 4 are separated, and the switch of the hydraulic cylinder 201 is turned on to drive the stripping plate 203 to rise and fall, thereby driving the ejector pin 204 to extend from the inside of the lower mold 4. The molded plastic product can be ejected through the ejector pin 204, thereby realizing the demoulding of the product, realizing the rapid opening and closing of the mold and the continuous demoulding of the product. When the device is not in use, the external power supply of the device is cut off. The model of the hydraulic cylinder 201 is ROB20X50-CM, and the use process of the microporous breathable plastic mold is completed.

[0025] Although the embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations may be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A microporous breathable plastic mold, comprising a bottom plate (1), characterized in that: An ejection mechanism (2) is provided above the base plate (1), a fixing seat (3) is fixed above the base plate (1), a lower mold (4) is installed above the fixing seat (3), a cooling mechanism (5) is provided inside the lower mold (4), a vent hole (6) is provided on one side of the lower mold (4), a positioning hole (7) is provided above the lower mold (4), a positioning column (8) passes through the positioning hole (7), an upper mold (9) is fixed above the positioning column (8), and a limiting plate (10) is installed above the upper mold (9); The ejection mechanism (2) comprises a hydraulic cylinder (201), a hydraulic rod (202), a stripping plate (203), an ejector pin (204), a spring (205) and a guide column (206); the hydraulic cylinder (201) is mounted above the bottom plate (1); a hydraulic rod (202) is mounted above the hydraulic cylinder (201); a stripping plate (203) is fixed above the hydraulic rod (202); an ejector pin (204) is fixed above the stripping plate (203); a spring (205) is sleeved on the outer side of the ejector pin (204); and guide columns (206) are passed through both sides of the stripping plate (203).

2. A microporous breathable plastic mold according to claim 1, characterized in that: The stripping plate (203) forms a lifting structure with the bottom plate (1) through a hydraulic cylinder (201), and the hydraulic cylinder (201) is symmetrically arranged with respect to the central axis of the bottom plate (1).

3. A microporous breathable plastic mold according to claim 1, characterized in that: The ejector pin (204) forms a telescopic structure with the lower die (4) via a spring (205), and the ejector pin (204) and the spring (205) are used in conjunction with each other.

4. A microporous breathable plastic mold according to claim 1, characterized in that: The cooling mechanism (5) comprises a cooling pipe (501), a connecting port (502) and a sealing head (503); the cooling pipe (501) is installed inside the lower mold (4); connecting ports (502) are fixed at both ends of the cooling pipe (501); and a sealing head (503) is installed inside the connecting port (502).

5. A microporous breathable plastic mold according to claim 4, characterized in that: The inner side of the connecting port (502) and the outer side of the sealing head (503) are both threaded, and the sealing head (503) and the connecting port (502) are threadedly connected.

6. The microporous breathable plastic mold according to claim 1, characterized in that: The diameter of the positioning column (8) is consistent with the diameter of the positioning hole (7), and the upper mold (9) is movably connected to the lower mold (4) through the positioning column (8).

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