CN211640784U - Injection mold structure of plastic bowl - Google Patents

Abstract

The utility model provides an injection mold structure of plastic bowl, including last die assembly, lower die assembly, it includes bedplate, upper padding plate, top board, cope match-plate pattern to go up the die assembly, be equipped with a recess on the cope match-plate pattern, still be connected with feeding subassembly on the last die assembly, feeding subassembly's output with recess through connection, lower die assembly includes bedplate, connection down the lower bolster of bedplate upper end, connection are in the holding down plate, the connection of lower bolster upper end the screw thread post at holding down plate upper end middle part and with screw thread post threaded connection's mould benevolence, mould benevolence with form a die cavity between the recess, the lower bolster inboard still is equipped with the liftout subassembly. The utility model discloses an injection mold structure is applicable to the preparation plastics bowl, can change mould benevolence at any time, makes its plastics bowl that can produce various thickness sizes, and is compatible strong.

Description

An injection mold structure for a plastic bowl

technical field

The utility model relates to the technical field of molds, in particular to an injection mold structure of a plastic bowl.

Background technique

Injection molding products are common daily necessities. Due to the advantages of light weight, high strength, good durability and strong assembly, injection molding products are widely used in household products, medical equipment, building materials, sports equipment and other fields. In the production process of injection molding products, the plastic material in the molten state is usually stirred uniformly by a screw extruder at a certain temperature, and then injected into the injection mold. The plastic material is formed in the cavity of the injection mold, and after cooling and solidification, Molded injection molded products.

Plastic bowls are a common injection molding product. Considering the difference in usage scenarios and production costs, it is usually necessary to make plastic bowls with different thicknesses. However, conventional injection molds for plastic bowls are usually one mold corresponding to one size. Therefore, multiple molds are required to meet various needs, which virtually increases the production cost.

Utility model content

In view of the above problems, the present invention provides an injection mold structure for plastic bowls, which is suitable for making plastic bowls, and the mold core can be replaced at any time, so that it can produce plastic bowls of various thicknesses and sizes, and has strong compatibility.

In order to achieve the above object, the utility model is solved by the following technical solutions:

An injection mold structure for a plastic bowl includes an upper mold assembly and a lower mold assembly, the upper mold assembly includes an upper seat plate, an upper backing plate connected to the lower end of the upper seat plate, and a lower end of the upper backing plate. The upper platen and the upper template connected to the lower end of the upper platen, the upper template is provided with a groove, the upper mold assembly is also connected with a feeding assembly, and the output end of the feeding assembly is connected to the The grooves are connected through, and the lower die assembly includes a lower seat plate, a lower backing plate connected to the upper end of the lower seat plate, a lower pressing plate connected to the upper end of the lower backing plate, and a lower pressing plate connected to the upper end of the lower pressing plate. A threaded column in the middle and a mold core threadedly connected with the threaded column, a cavity is formed between the die core and the groove, and a top material assembly is also provided on the inner side of the lower backing plate.

Specifically, the ejector assembly includes a push rod, a push plate connected to the upper end of the push rod, and an ejector pin connected to the upper end of the push plate, and the ejector pin is located at the bottom of the cavity.

Specifically, a guide rod is also connected between the lower seat plate and the lower pressing plate, and the push plate is slidably connected with the guide rod.

Specifically, the mold core is further provided with a circulating pipeline, the circulating pipeline is arranged around the outside of the groove, and a circulating water pump is also connected to the circulating pipeline.

Specifically, the feeding assembly includes a sprue fixed on the upper seat plate, and a hot runner connected to the lower end of the sprue, and the hot runner is an output end of the feeding assembly.

The beneficial effects of the present utility model are:

The injection mold of the utility model is suitable for making plastic bowls, and the mold cores can be replaced at any time, so that it can produce plastic bowls of various thicknesses and sizes, and the compatibility is strong, and the mold cores are installed by means of threaded connection, which is easy to replace. A circulating pipeline is also added, and the circulating pipeline is filled with cold water, which speeds up the cooling efficiency of the product.

Description of drawings

FIG. 1 is a schematic structural diagram of an injection mold structure of a plastic bowl according to the present invention when the mold is closed.

Reference numerals are: upper die assembly 1, upper seat plate 11, upper backing plate 12, upper pressing plate 13, upper template 14, lower die assembly 2, lower seat plate 21, lower backing plate 22, lower pressing plate 23, threaded column 24. Mold core 25, feeding component 3, pouring port 31, hot runner 32, cavity 4, ejector component 5, push rod 51, push plate 52, ejector pin 53, guide rod 6, circulation pipe 7.

Detailed ways

The present utility model will be described in further detail below with reference to the embodiments and accompanying drawings, but the embodiments of the present utility model are not limited thereto.

As shown in Figure 1:

An injection mold structure for a plastic bowl includes an upper mold assembly 1 and a lower mold assembly 2. The upper mold assembly 1 includes an upper seat plate 11, an upper backing plate 12 connected to the lower end of the upper seat plate 11, and an upper backing plate 12 connected to the upper backing plate 12. The upper platen 13 at the lower end and the upper platen 14 connected to the lower end of the upper platen 13, the upper platen 14 is provided with a groove, the upper mold assembly 1 is also connected with a feeding assembly 3, and the output end of the feeding assembly 3 is connected to the upper platen 13. The grooves are connected through, and the lower die assembly 2 includes a lower seat plate 21, a lower backing plate 22 connected to the upper end of the lower seat plate 21, a lower pressing plate 23 connected to the upper end of the lower backing plate 22, and a threaded post 24 connected to the middle of the upper end of the lower pressing plate 23, And the mold core 25 threadedly connected with the threaded column 24, a cavity 4 is formed between the mold core 25 and the groove, the mold core 25 and the threaded column 24 are fixed by means of threaded connection, which is easy to install. The thickness of the cavity 4 is increased or decreased, so that plastic bowls of different thicknesses can be made, and a top material assembly 5 is also provided on the inner side of the bottom plate 22. After the injection molding is completed and the mold is opened, the plastic bowl is set on the mold core 25. On the upper end face, the plastic bowl is ejected through the ejector assembly 5.

Preferably, the ejector assembly 5 includes a push rod 51, a push plate 52 connected to the upper end of the push rod 51, and an ejector pin 53 connected to the upper end of the push plate 52, the ejector pin 53 is located at the bottom of the cavity 4, specifically, the ejector pin 53 pushes the plastic bowl eject.

Preferably, in order to make the push plate 52 slide up and down more smoothly, a guide rod 6 is also connected between the lower seat plate 21 and the lower pressing plate 23 , and the push plate 52 is slidably connected to the guide rod 6 .

Preferably, the mold core 25 is also provided with a circulating pipeline 7, which is arranged around the outside of the groove, and a circulating water pump is also connected to the circulating pipeline 7. The circulating water pump pumps cold water into the circulating pipeline 7, which speeds up the cooling speed of the product. .

Preferably, the feeding assembly 3 includes a sprue 31 fixed on the upper base plate 11, and a hot runner 32 connected to the lower end of the sprue 31. The hot runner 32 is the output end of the feeding assembly 3, and the sprue 31 is connected to the screw extrusion The discharge port of the machine is used for feeding.

The above embodiment only represents an embodiment of the present invention, and its description is more specific and detailed, but it should not be construed as a limitation on the scope of the present invention. It should be pointed out that for those of ordinary skill in the art, some modifications and improvements can be made without departing from the concept of the present invention, which all belong to the protection scope of the present invention. Therefore, the protection scope of the patent for this utility model shall be subject to the appended claims.

Claims (5)

1. The utility model provides an injection mold structure of plastics bowl, includes upper die assembly (1), lower die assembly (2), its characterized in that, upper die assembly (1) includes bedplate (11), connects upper padding plate (12) of upper bedplate (11) lower extreme, connect upper plate (13) and connection at upper padding plate (12) lower extreme upper plate (13) upper die plate (14) of lower extreme, be equipped with a recess on upper die plate (14), still be connected with feed assembly (3) on upper die assembly (1), the output of feed assembly (3) with recess through connection, lower die assembly (2) include bedplate (21), connect down bedplate (22) of bedplate (21) upper end, connect lower bolster (23) of bedplate (22) upper end, connect screw post (24) in the middle part of clamp plate (23) upper end, And the die core (25) is in threaded connection with the threaded column (24), a cavity (4) is formed between the die core (25) and the groove, and the inner side of the lower backing plate (22) is also provided with a material ejecting component (5).

2. An injection mold structure for a plastic bowl as claimed in claim 1, wherein the ejector assembly (5) comprises a push rod (51), a push plate (52) connected to the upper end of the push rod (51), and an ejector pin (53) connected to the upper end of the push plate (52), the ejector pin (53) being located at the bottom of the cavity (4).

3. An injection mold structure of a plastic bowl as claimed in claim 2, characterized in that a guide rod (6) is connected between the lower seat plate (21) and the lower pressure plate (23), and the push plate (52) is connected with the guide rod (6) in a sliding manner.

4. An injection mold structure of a plastic bowl as claimed in claim 1, wherein the mold core (25) is further provided with a circulation pipeline (7), the circulation pipeline (7) is wound outside the groove, and the circulation pipeline (7) is further connected with a circulation water pump.

5. An injection mold structure for a plastic bowl as claimed in claim 1, characterized in that the feeding assembly (3) comprises a pouring opening (31) fixed on the upper seat plate (11), and a hot runner (32) connected to the lower end of the pouring opening (31), wherein the hot runner (32) is the output end of the feeding assembly (3).

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