CN223918471U

CN223918471U - EPP forming die with external air cylinder and high-efficiency production

Info

Publication number: CN223918471U
Application number: CN202520424755.8U
Authority: CN
Inventors: 华虹
Original assignee: Wuxi Huayida Industry And Trade Co ltd
Current assignee: Wuxi Huayida Industry And Trade Co ltd
Priority date: 2025-03-12
Filing date: 2025-03-12
Publication date: 2026-02-17
Anticipated expiration: 2035-03-12

Abstract

The utility model relates to the technical field of EPP forming dies, in particular to an EPP forming die with an external air cylinder and high-efficiency production, which comprises a die main body and an external air cylinder system positioned outside the die main body, wherein the die main body comprises a female die, a male die and a back plate, a die cavity is formed after the female die and the male die are clamped, the female die and the male die are connected through bolts after the female die and the male die are clamped, a plurality of telescopic rods are uniformly arranged between the female die and the back plate, the external air cylinder system comprises a plurality of air cylinders, a piston rod of each air cylinder penetrates through the side wall of the die main body to be connected with the bolts, and the piston rod is in sliding fit with the side wall of the die main body. This mould adopts the cylinder external to give the inside space of mould and arranges the product, has increased the utilization ratio of mould inner space, has improved production efficiency, through setting up backplate and telescopic link, improves drawing of patterns efficiency.

Description

EPP forming die with external air cylinder and high-efficiency production

Technical Field

The utility model relates to the technical field of EPP forming dies, in particular to an EPP forming die with an external cylinder and high-efficiency production.

Background

EPP (expanded polypropylene) is a high-performance foam plastic material, has excellent heat resistance, mechanical strength and environmental friendliness, and is widely applied to the fields of automobiles, packaging, buildings, toys and the like. In the EPP processing process, the forming die is an indispensable special tool, and the plastic product with a required shape is obtained by injecting heated and melted plastic into a die cavity and cooling and hardening the plastic under a certain time and pressure, so that the plastic product is particularly suitable for mass production of products with complex geometric shapes and high precision requirements. In the EPP molding die, the die size is fixed, more products are considered to be arranged in a plurality of rows as much as possible in the limited size when the die is designed, and if the air cylinder is required to be added in the die, more space is required to be added for arrangement, so that the space utilization rate of the EPP molding die is reduced.

Disclosure of utility model

The utility model aims to provide an EPP forming die with an external cylinder and high-efficiency production, which solves the problems in the background technology.

In order to achieve the above purpose, the present utility model provides the following technical solutions:

An EPP forming die with an external cylinder and high-efficiency production comprises a die main body and an external cylinder system positioned outside the die main body;

The die body comprises a female die, a male die and a back plate, wherein a die cavity is formed after the female die and the male die are clamped, and the female die and the male die are connected through a bolt after the die is clamped;

A plurality of telescopic rods are uniformly arranged between the female die and the backboard, one end of each telescopic rod is fixedly connected with the female die, and the other end of each telescopic rod is fixedly connected with the backboard;

The external cylinder system comprises a plurality of cylinders, wherein piston rods of the cylinders penetrate through the side wall of the die main body to be connected with the bolts, and the piston rods are in sliding fit with the side wall of the die main body.

Further, cylinder bodies of the plurality of cylinders are respectively fixed on the left side and the right side of the die main body through detachable frames.

Further, the mold further comprises a control module, wherein the control module comprises a temperature sensor and a controller, the temperature sensor, the air cylinder and the controller are electrically connected, and the temperature sensor is embedded on the surface of the mold cavity.

Further, a cooling pore canal is arranged in the die main body and is connected with a cooling system, the cooling system comprises an automatic regulating valve and a cooling water pipe, the cooling water pipe comprises a water inlet pipe and a water outlet pipe, the outer ends of the water inlet pipe and the water outlet pipe penetrate through a back plate to be respectively connected with an external circulation system, and the inner ends of the water inlet pipe and the water outlet pipe are respectively connected with an inlet and an outlet of the cooling pore canal.

Further, the paths of the cooling channels are serpentine along the mold cavity profile.

Compared with the prior art, the utility model has the beneficial effects that:

According to the EPP forming die with the external air cylinder and high-efficiency production, the external air cylinder is adopted to optimize and improve, the internal space of the die is given to the arranged products, the utilization rate of the internal space of the die is improved, the output of the later-stage formed products can be doubled, the production efficiency is improved, the use cost is reduced, and the demolding efficiency is improved by arranging the back plate and the telescopic rod.

Drawings

FIG. 1 is a schematic diagram of the overall structure of the present utility model;

FIG. 2 is a diagram of the female die structure in the present utility model;

FIG. 3 is a diagram of a male die structure in accordance with the present utility model;

Fig. 4 is a block diagram of a cylinder according to the present utility model.

In the figure, 1, a die main body, 11, a female die, 12, a male die, 13, a back plate, 14, a die cavity, 2, a cylinder system, 21, a cylinder, 211, a cylinder body, 212, a piston rod, 22, a frame, 3, a telescopic rod, 4, an exhaust hole, 5, a cooling system, 51, an automatic regulating valve, 52, a cooling water channel, 521, a water inlet pipe, 522 and a water outlet pipe.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

In the description of the present utility model, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings are merely for convenience in describing the present utility model and simplifying the description, and do not indicate or imply that the apparatus or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present utility model.

In the description of this patent, it should be noted that, unless explicitly stated and limited otherwise, the terms "mounted," "connected," and "disposed" are to be construed broadly, and may be fixedly connected, disposed, detachably connected, disposed, or integrally connected, disposed, for example. The specific meaning of the terms in this patent will be understood by those of ordinary skill in the art as the case may be.

Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include one or more such feature. In the description of the present utility model, the meaning of "a number" is two or more, unless explicitly defined otherwise.

Referring to fig. 1-4, the technical scheme includes that the EPP forming die with the external air cylinder and high-efficiency production is provided, the EPP forming die comprises a die body 1 and an external air cylinder system 2 positioned outside the die body 1, the die body 1 comprises a female die 11, a male die 12 and a back plate 13, a die cavity 14 is formed after the female die 11 and the male die 12 are clamped, the female die 11 and the male die 12 are connected through bolts, the back plate 13 is arranged above the female die 11, and the back plate 13 and the male die 12 are fixedly connected through a plurality of detachable supports.

A plurality of telescopic rods 3 are uniformly arranged between the female die 11 and the backboard 13, one end of each telescopic rod 3 is fixedly connected with the female die 11, and the other end is fixedly connected with the backboard 13. When the die is opened, the telescopic rod 3 initially separates the female die 11 and the male die 12 in the direction perpendicular to the back plate 13, and finally the detachable support is detached to complete the separation. The external cylinder system 2 comprises a plurality of cylinders 21, the cylinders 21 are respectively fixed on the left side and the right side of the die main body 1 through detachable racks 22, the cylinders 21 are controlled by a control module, and the control module can automatically control the opening and closing of the cylinders 21, so that the automatic operation of equipment is realized.

In this embodiment, the cylinder 21 includes a cylinder body 211 and a piston rod 212, the cylinder body 211 is fixed on the side wall of the mold body 1 by a detachable bracket 22, the piston rod 212 of the cylinder 21 passes through the side wall of the mold body 1 to be connected with a bolt, and the piston rod 212 is slidably matched with the side wall of the mold body 1.

When the mold opening condition is provided, the control module activates the cylinder 21, and at this time, the piston rod 212 of the cylinder 21 withdraws the plug pin between the female mold 11 and the male mold 12. The female die 11 is provided with an exhaust hole 4 communicated with the die cavity 14 for exhausting gas in the die. The die body 1 is internally provided with a cooling pore canal, the cooling pore canal is connected with a cooling system 5 for rapidly cooling the die, the cooling system 5 comprises an automatic regulating valve 51 and a cooling water pipe 52, the cooling water pipe 52 comprises a water inlet pipe 521 and a water outlet pipe 522, the outer ends of the water inlet pipe 521 and the water outlet pipe 522 penetrate through the back plate 13 to be respectively connected with an external circulation system, and the inner ends of the water inlet pipe 521 and the water outlet pipe 522 are respectively connected with an inlet and an outlet of the cooling pore canal. In order to improve the cooling effect, the paths of the cooling channels are distributed in a serpentine shape along the outline of the die cavity 14, and the movement tracks of the cooling water pipes 52 and the telescopic rods 3 are arranged in a non-overlapping manner on the projection surface.

In this embodiment, the control module includes a temperature sensor and a controller, where the temperature sensor and the cylinder 21 are electrically connected to the controller, the temperature sensor is embedded on the surface of the mold cavity 14, and when the temperature of the mold cavity 14 is detected to be lower than a set threshold value, the controller synchronously triggers the cylinder 21 to withdraw the plug pin.

The specific operation steps are as follows:

and (3) die assembly and material injection, namely preheating the die, stopping heating when the temperature reaches the melting point of EPP, and closing the female die 11 and the male die 12. Then, EPP particles are injected into the mold cavity 14, and the gas in the mold cavity 14 is discharged through the gas discharge hole 4 after the particles are injected into the mold cavity 14, so that bubbles of the product are avoided.

And (3) heating and forming, namely continuously heating the die after the particles are injected into the die cavity 14, and introducing steam to foam and expand the EPP when the temperature of the die reaches the melting point of the EPP material.

Cooling and ejection, namely after steam is introduced, the temperature in the die is high, the die cannot be removed, and in order to ensure smooth die removal of the product, the temperature in the die needs to be reduced. At this time, the cooling system 5 starts to work, the cooling mould reduces the temperature of the mould, when the temperature sensor detects that the temperature of the mould cavity 14 is lower than the temperature capable of demoulding, the external air cylinder 21 is started, the piston rod 212 of the air cylinder 21 withdraws the bolt, then the telescopic rod 3 contracts to initially separate the female mould 11 and the male mould 12, finally the detachable support is detached to complete separation, and the product is fully automatically separated from the mould cavity 14. And then, a special person is responsible for arranging the products on the goods shelves, and the products are orderly arranged, and the products with various types are put into a drying room for drying.

When the EPP forming die with the external air cylinder and high-efficiency production is used, the air cylinder is externally arranged, so that the utilization efficiency of the die is improved, and the production cost is reduced.

The foregoing has shown and described the basic principles, principal features and advantages of the utility model. It will be understood by those skilled in the art that the present utility model is not limited to the above-described embodiments, and that the above-described embodiments and descriptions are only preferred embodiments of the present utility model, and are not intended to limit the utility model, and that various changes and modifications may be made therein without departing from the spirit and scope of the utility model as claimed. The scope of the utility model is defined by the appended claims and equivalents thereof.

Claims

1. The EPP forming die with the external cylinder and high-efficiency production is characterized by comprising a die main body and an external cylinder system positioned outside the die main body;

2. The EPP molding die with the external cylinder and high production efficiency of claim 1, wherein the cylinder bodies of the cylinders are respectively fixed on the left side and the right side of the die body through detachable frames.

3. The EPP molding die with the external cylinder and high production efficiency of claim 1, further comprising a control module, wherein the control module comprises a temperature sensor and a controller, the temperature sensor, the cylinder and the controller are electrically connected, and the temperature sensor is embedded on the surface of the die cavity.

4. The EPP molding die with the external cylinder and high production efficiency according to claim 1, wherein the die body is internally provided with a cooling pore canal, the cooling pore canal is connected with a cooling system, the cooling system comprises an automatic regulating valve and a cooling water pipe, the cooling water pipe comprises a water inlet pipe and a water outlet pipe, the outer ends of the water inlet pipe and the water outlet pipe penetrate through a back plate to be respectively connected with an external circulation system, and the inner ends of the water inlet pipe and the water outlet pipe are respectively connected with an inlet and an outlet of the cooling pore canal.

5. The EPP molding die with the external cylinder and the high efficiency of production of claim 4, wherein the path of the cooling duct is distributed in a serpentine shape along the contour of the die cavity.