Precise mould for PET (Polyethylene Terephthalate) foam material

Abstract

The utility model discloses a PET foam material precision mould relates to precision mould technical field, including mould mechanism and temperature sensor, mould mechanism includes No.1 mould, the upper part of No.1 mould is equipped with No.2 mould, the side face of No.2 mould is fixedly connected with feed pipe, and the temperature sensor is connected with the feed pipe. The upper portion of the second mold is fixedly connected with a plurality of heat dissipation fin plates. According to the mold, heat in the second mold and the first mold is uniformly dissipated through the heat dissipation fin plates, in the heat dissipation process, the heat in the second mold is monitored through the temperature sensor, and when the temperature sensor detects that the temperature of part of the area in the second mold is too high and heat dissipation is not uniform, the second mold is started; and at the moment, ventilation is conducted on the surfaces of the heat dissipation fin plates through the heat dissipation fan, and therefore uniform heat dissipation is conducted on materials in the second mold.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of precision mould, especially to a PET foamed material precision mould. BACKGROUND

[0002] The PET foamed material precision mould is a high-precision tool for manufacturing PET foamed material products, usually made of high-quality mould steel or imported alloy steel, with its cavity and runner structure precisely designed and processed, high dimensional accuracy and surface finish, which can ensure the PET foamed material to obtain accurate shape, size and good surface quality during the forming process.

[0003] However, in the prior art, the cooling system layout in the PET foamed material precision mould is not reasonable enough, resulting in different heat transfer efficiency of each part of the mould, difficulty in accurately sensing and controlling the temperature, and uneven temperature control, which will cause uneven cooling speed of the PET foamed material, uneven shrinkage of the product, appearance defects such as warping and deformation, and also affect the foaming effect, resulting in different bubble structure size and uneven distribution, and further reducing the key indicators such as mechanical properties and thermal insulation performance of the product, and even causing the product to be scrapped, increasing the production cost and reducing the production efficiency. UTILITY MODEL CONTENT

[0004] The utility model discloses a PET foamed material precision mould, which can solve the problem of uneven temperature control in the prior art, and can ensure the accurate sensing and control of the temperature, the uniform cooling speed of the PET foamed material, the uniform shrinkage of the product, and the uniform distribution of the bubble structure.

[0005] In order to achieve the above-mentioned purpose, the utility model adopts the following technical scheme: a PET foamed material precision mould, comprising a mould mechanism and a temperature sensor, the mould mechanism comprises a No.

[0006] Preferably, the No. 2 mould is fixedly connected with four guide rods at the bottom, and the four guide rods are evenly distributed at the bottom of the No. 2 mould.

[0007] Preferably, the guide rod is slidably connected with the first mold, and the guide rod is located in the guide hole and slidably connected with the first mold.

[0008] Preferably, the servo motor is fixedly connected with the bottom of the servo frame, and the output end of the servo motor is fixedly connected with a lead screw, and the lead screw is rotatably connected with the bottom of the servo frame.

[0009] Preferably, the lead screw is threadedly connected with the sliding block.

[0010] Compared with the prior art, the PET foaming material precision mold has the advantages and positive effects that:

[0011] 1、In the PET foaming material precision mold, the heat in the first mold and the second mold is uniformly radiated through the heat dissipation fins, in the process of heat dissipation, the temperature sensor is used for monitoring the heat in the second mold, when the temperature sensor detects that the temperature in some area of the second mold is too high and the heat dissipation is uneven, the surface of the heat dissipation fins is ventilated through the heat dissipation fan, so that the material in the second mold is uniformly radiated.

[0012] 2、In the PET foaming material precision mold, in the process of ventilating and radiating the heat dissipation fins through the heat dissipation fan, the servo motor drives the lead screw to rotate, so as to drive the sliding block to slide along the servo frame, and then the position of the heat dissipation fan is adjusted, so that the heat dissipation fan can accurately radiate the position with uneven temperature. BRIEF DESCRIPTION OF DRAWINGS

[0013] Figure 1 A three-dimensional structural schematic view of the PET foaming material precision mold is provided for the utility model;

[0014] Figure 2 A side view structural schematic view of the PET foaming material precision mold is provided for the utility model;

[0015] Figure 3 A three-dimensional structural schematic view of the heat dissipation fin in the PET foaming material precision mold is provided for the utility model;

[0016] Figure 4 A three-dimensional structural schematic view of the servo frame in the PET foaming material precision mold is provided for the utility model.

[0017] Legend: 1, mold mechanism; 11, first mold; 12, second mold; 13, guide rod; 14, feeding pipe; 2, heat dissipation fin; 3, temperature adjusting mechanism; 31, fixed frame; 32, servo frame; 33, servo motor; 34, lead screw; 35, sliding block; 36, mounting frame; 37, heat dissipation fan; 4, temperature sensor. Detailed Implementation

[0018] To better understand the above-mentioned objectives, features, and advantages of this utility model, the present utility model will be further described below with reference to the accompanying drawings and embodiments. It should be noted that, unless otherwise specified, the embodiments and features described in these embodiments can be combined with each other.

[0019] Many specific details are set forth in the following description in order to provide a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Therefore, the present invention is not limited to the specific embodiments disclosed in the following specification.

[0020] Example 1: As Figures 1-4 As shown, this utility model provides a precision mold for PET foam material, including a mold mechanism 1 and a temperature sensor 4. The mold mechanism 1 includes a first mold 11, a second mold 12 mounted on the upper part of the first mold 11, a feed pipe 14 fixedly connected to the side of the second mold 12, and multiple heat dissipation fins 2 fixedly connected to the upper part of the second mold 12. The multiple heat dissipation fins 2 are evenly distributed on the surface of the second mold 12. The temperature sensor 4 is fixedly connected to the surface of the second mold 12. A temperature regulating mechanism 3 is fixedly connected to the upper part of the second mold 12. The temperature regulating mechanism 3 includes two fixing frames 31, which are symmetrically arranged. On the side of mold 12, a servo motor 33 is fixedly connected to the upper part of a fixed frame 31, and a servo frame 32 is fixedly connected to the upper part of another fixed frame 31. A slider 35 is slidably connected to the lower part of the servo frame 32. A mounting frame 36 is fixedly connected to the bottom of the slider 35. A cooling fan 37 is installed inside the mounting frame 36. Four guide rods 13 are fixedly connected to the bottom of mold 12. The four guide rods 13 are evenly distributed on the bottom of mold 12. The guide rods 13 are slidably inserted into mold 11. A guide hole is provided on the surface of mold 11. The guide rods 13 are located inside the guide hole and are slidably inserted into mold 11.

[0021] The specific settings and functions of this embodiment are described below. The No. 2 mold 12 is closed with the No. 1 mold 11, and then PET foam material is injected into the No. 2 mold 12 and the No. 1 mold 11 through the feed pipe 14 for processing. The guide rod 13 is inserted into the No. 1 mold 11 to guide the movement of the No. 2 mold 12 and improve the accuracy of the closure of the No. 2 mold 12 and the No. 1 mold 11.

[0022] The PET foaming material generates heat in the expansion process, the heat inside the second mold 12 and the first mold 11 is uniformly radiated through the heat dissipation fins 2, in the process of heat dissipation, the heat inside the second mold 12 is monitored through the temperature sensor 4, when the temperature sensor 4 detects that the temperature of the partial area inside the second mold 12 is too high, the heat dissipation fins 2 surface is ventilated through the heat dissipation fan 37, so that the material inside the second mold 12 is uniformly radiated.

[0023] Embodiment two: as shown, the servo motor 33 is fixedly connected with the bottom of the servo bracket 32, the output end of the servo motor 33 is fixedly connected with the lead screw 34, the lead screw 34 is rotatably connected with the bottom of the servo bracket 32, and the lead screw 34 is threadedly connected with the sliding block 35. Figures 1-4

[0024] The effect of the whole embodiment is that in the process that the heat dissipation fan 37 ventilates and radiates the heat dissipation fins 2, the lead screw 34 is driven to rotate by the servo motor 33, so that the sliding block 35 is driven to slide along the servo bracket 32, and then the position of the heat dissipation fan 37 is adjusted, so that the heat dissipation fan 37 can accurately radiate the position with uneven temperature.

[0025] The use method and working principle of the device are as follows: the second mold 12 and the first mold 11 are folded, and then the PET foaming material is injected into the second mold 12 and the first mold 11 through the feeding pipe 14 for processing.

[0026] The PET foaming material generates heat in the expansion process, the heat inside the second mold 12 and the first mold 11 is uniformly radiated through the heat dissipation fins 2, in the process of heat dissipation, the heat inside the second mold 12 is monitored through the temperature sensor 4, when the temperature sensor 4 detects that the temperature of the partial area inside the second mold 12 is too high, the heat dissipation fins 2 surface is ventilated through the heat dissipation fan 37, so that the material inside the second mold 12 is uniformly radiated.

[0027] The above is only a preferred embodiment of the present application, and is not intended to limit the present application in other forms. Any skilled person in the art can modify or change the above disclosed technical content to equivalent embodiments applied to other fields, but any simple modification, equivalent change and modification of the above embodiments without departing from the technical scheme of the present application, according to the technical essence of the present application, still belongs to the protection scope of the technical scheme of the present application.​

Claims

1. A precision mold for PET foamed material, characterized by: The utility model provides a mould mechanism (1) and temperature sensor (4) including, the mould mechanism (1) includes no. 1 mould (11), the no. 1 mould (11) upper portion is installed with no. 2 mould (12), the no. 2 mould (12) side fixedly connected with feed pipe (14), and no. 2 mould (12) upper portion is fixedly connected with a plurality of heat dissipation fin plates (2), a plurality of heat dissipation fin plates (2) evenly distribute in no. 2 mould (12) surface, temperature sensor (4) is fixedly connected with no. 2 mould (12) surface, and no. 2 mould (12) upper portion is fixedly connected with temperature adjusting mechanism (3), and temperature adjusting mechanism (3) includes two fixed frame (31), and two fixed frame (31) are symmetrically distributed in no. 2 mould (12) side, and one fixed frame (31) upper portion is fixedly connected with servo motor (33), and another fixed frame (31) upper portion is fixedly connected with servo bracket (32), and servo bracket (32) lower portion is slidably connected with sliding block (35), and sliding block (35) bottom is fixedly connected with mounting bracket (36), and mounting bracket (36) is installed with heat dissipation fan (37) inside.

2. The PET foamed material precision mold according to claim 1, characterized in that: No. 2 mould (12) bottom is fixedly connected with four guide rods (13), and four guide rods (13) are evenly distributed in no. 2 mould (12) bottom.

3. The PET foamed material precision mold according to claim 2, characterized in that: The guide rod (13) is slidably inserted with the no. 1 mould (11), and the surface of the no. 1 mould (11) is provided with a guide hole, and the guide rod (13) is slidably inserted with the no. 1 mould (11) in the guide hole.

4. The PET foamed material precision mold according to claim 1, characterized in that: The servo motor (33) is fixedly connected with the servo bracket (32) bottom, and the output end of the servo motor (33) is fixedly connected with a lead screw (34), and the lead screw (34) is rotatably connected with the servo bracket (32) bottom.

5. The PET foamed material precision mold according to claim 4, characterized in that: The lead screw (34) is threadedly connected with the sliding block (35).

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