Foam box forming mold

Abstract

The utility model discloses a foam box forming die which comprises a lower die arranged on a frame body, an upper die of a hollow structure is arranged in the lower die, the lower end of the upper die extends into the lower die, an annular structure is formed on the outer wall of the upper die, the annular structure is in butt joint with an opening of the lower die, and the opening of the lower die is in butt joint with the lower die. A cavity is formed between the lower die and the upper die; a first vent hole is formed in the bottom of the upper mold; an air pipe is arranged on the frame body, the lower end of the air pipe extends into the upper die and is connected with a sealing plate, and an air hole communicated with the air pipe is formed in the lower end face of the sealing plate; and when the upper mold moves upwards, the sealing plate can shield the first vent hole. The forming die solves the problems that after an upper die of a forming die in the prior art is opened, a part of hot steam can be left in the upper die, when an operator takes a formed part, the hot steam with the high temperature can be continuously discharged from an air hole of the upper die, and scalding is likely to be caused.

Description

TECHNICAL FIELD

[0001] The utility model relates to the foamed part production field, specifically, relate to a foamed case forming die. BACKGROUND

[0002] Foam forming die generally includes lower die and hollow upper die, the cavity is formed between upper and lower die, when operating, foaming granule is placed in the cavity, through the upper die to the steam, the steam enters the cavity from the air hole of the lower end of the upper die, foaming granule is shaped after being heated. For example, the patent number CN202462767U provides a kind of foamed product forming die of steam amount saving, including lower die plate and the upper die plate with the forming lug on its lower surface, the upper die plate movable cover is located on the lower die plate, the upper surface of the lower die plate is concavely provided with chamber, the forming lug is nested in this chamber, and the forming lug and chamber form the forming chamber that shape is consistent with the foamed product to be shaped, and the upper die plate is provided with steam chamber, the side wall of the upper die plate is provided with steam inlet, the lower bottom surface of the forming lug is provided with the steam outlet that is communicated with forming chamber;The shape of the upper surface of the above-mentioned upper die plate corresponds to the shape of the lower surface of the above-mentioned upper die plate. Such as the forming die in the prior art above, a part of hot steam is left in the upper die after the upper die is opened, hot steam with high temperature is continuously discharged from the air hole of the upper die when taking shaped part by operating personnel, and scalding is easily caused. CONTENT OF UTILITY MODEL

[0003] The utility model aims at providing a kind of foamed case forming die, solve the problem that the forming die in prior art, after the upper die is opened, a part of hot steam is left in the upper die, hot steam with high temperature is continuously discharged from the air hole of the upper die when taking shaped part by operating personnel, and scalding is easily caused.

[0004] In order to realize the above-mentioned purpose, the utility model provides a kind of foamed case forming die, the foamed case forming die includes the lower die being arranged on the frame body, the hollow structure of upper die is arranged in the lower die, the lower end of the upper die extends to the lower die, the outer wall of the upper die forms annular structure, the annular structure is butt joint with the opening of the lower die, the cavity is formed between the lower die and the upper die;

[0005] The bottom of the upper die forms first air hole;

[0006] The frame body is provided with air pipe, the lower end of the air pipe extends to the upper die and is connected with sealing plate, the lower end surface of the sealing plate forms the air hole that is communicated with the air pipe;

[0007] When the upper die is displaced towards the upper position, the sealing plate can shield the first air hole.

[0008] Preferably, an exhaust hole is arranged at the joint of the annular structure and the opening of the lower mold.

[0009] Preferably, an air cylinder is arranged at the upper end of the frame body, and a piston rod of the air cylinder is connected with the upper mold.

[0010] Preferably, a second air hole is formed in the side of the upper mold and communicated with the cavity, and the edge of the sealing plate is bent upward to form an annular shielding part, which can shield the second air hole when the upper mold is displaced upward.

[0011] Preferably, a joint is arranged at the upper end of the air pipe.

[0012] Beneficial effects: The utility model provides a foamed box forming die, foamed box forming die includes setting up on the frame body lower mold, hollow structure's upper mold is arranged in the lower mold, the lower end of upper mold extends to the lower mold, the outer wall of upper mold forms annular structure, annular structure and the opening of lower mold butt joint, form the cavity between lower mold and upper mold, the bottom of upper mold forms first air hole, the frame body is provided with air pipe, the lower end of air pipe extends to the upper mold and is connected with sealing plate, the lower end surface of sealing plate forms the air hole with air pipe intercommunication, when upper mold is displaced upward, sealing plate can shield first air hole.

[0013] Other features and advantages of the utility model will be described in detail in the following specific embodiment part. BRIEF DESCRIPTION OF DRAWINGS

[0014] The accompanying drawings are included to provide a further understanding of the utility model, and constitute a part of the specification, and are used to explain the utility model together with the following specific embodiment, but do not constitute the limitation to the utility model.In the drawings,

[0015] Figure 1 It is the structure diagram of foamed box forming die provided by the utility model;

[0016] Figure 2 It is the internal structure diagram of foamed box forming die provided by the utility model;

[0017] Figure 3 It is the structure diagram when upper mold of foamed box forming die provided by the utility model is closed;

[0018] Figure 4 is a structure diagram of the upper die of the foam box forming die.

[0019] Reference signs

[0020] 1-frame; 2-lower die; 3-upper die; 4-ring structure; 5-cylinder; 6-air pipe; 7-sealing plate; 8-first air hole; 9-second air hole. DETAILED DESCRIPTION

[0021] The specific embodiments described herein are intended to be illustrative only and are not intended to limit the scope of the present application. Other embodiments of the present application will be apparent to those skilled in the art from consideration of the specification and practice of the application disclosed herein.

[0022] As shown in Figures 1-4 The utility model provides a kind of foam box forming die, it is characterized in that, the foam box forming die includes lower die 2 being arranged on frame 1, hollow structure's upper die 3 is arranged in the lower die 2, the lower end of the upper die 3 extends to the lower die 2, the outer wall of the upper die 3 is formed with ring structure 4, the ring structure 4 is butted with the opening of the lower die 2, chamber is formed between the lower die 2 and the upper die 3;The bottom of the upper die 3 is formed with first air hole 8;Frame 1 is provided with air pipe 6, the lower end of the air pipe 6 extends to the upper die 3 and is connected with sealing plate 7, the lower end surface of the sealing plate 7 is formed with the air hole that is communicated with the air pipe 6;When the upper die 3 displaces upwards, the sealing plate 7 can shield the first air hole 8.In operation, foaming particles are placed in cavity, after closing upper die, hot steam is introduced through air pipe, steam enters into cavity from first air hole (as shown in Figure 3 ), foaming particles are shaped after being heated, after shaping, upper die is lifted, sealing plate is attached to the inner bottom wall of upper die at this time, so that residual hot steam in upper die is discharged at one time (as shown in Figure 4 ), avoid that hot steam flows out from first air hole and affects taking during taking.

[0023] In a preferred embodiment of the utility model, the ring structure 4 is provided with exhaust hole at the butt joint with the opening of the lower die 2.Exhaust hole can discharge the gas generated by foaming in time, avoid that product appears bubble, shrinkage or incomplete filling

[0024] In a preferred embodiment of the utility model, in order to facilitate opening upper die 3, the upper end of the frame 1 is provided with cylinder 5, the piston rod of the cylinder 5 is connected with the upper die 3.

[0025] In a preferred embodiment of the utility model, in order to make hot steam fully enter the cavity, make each part heat evenly, the side of upper die 3 form with second vent hole 9 that communicates with the chamber, the edge of sealing plate 7 is bent upwards and forms annular shielding part, when upper die 3 is displaced towards the top, annular shielding part can shield second vent hole 9.

[0026] In a preferred embodiment of the utility model, in order to facilitate trachea 6 and hot steam equipment connection, to provide hot steam, the upper end of trachea 6 is provided with butt joint.

[0027] The preferred embodiments of the utility model are described in detail above in combination with the drawings, but the utility model is not limited to the specific details in the above-mentioned embodiments, and various simple modifications can be made to the technical solutions of the utility model within the technical concept of the utility model, and these simple modifications all belong to the protection scope of the utility model.

[0028] In addition, it should be noted that various specific technical features described in the above specific embodiments can be combined in any suitable manner without contradiction, and in order to avoid unnecessary repetition, the utility model will not further describe various possible combination manners.

[0029] Furthermore, various different embodiments of the utility model can also be combined in any manner, as long as it does not deviate from the concept of the utility model, and it should also be considered as disclosed by the utility model.

Claims

1. A foam box forming mold characterized by, The foam box forming die comprises a lower die (2) arranged on a frame body (1), an upper die (3) with a hollow structure arranged in the lower die (2), the lower end of the upper die (3) extending into the lower die (2), the outer wall of the upper die (3) being formed with an annular structure (4) which is in abutment with the opening of the lower die (2), a cavity being formed between the lower die (2) and the upper die (3); The bottom of the upper die (3) is formed with a first air hole (8); The frame body (1) is provided with an air pipe (6), the lower end of the air pipe (6) extending into the upper die (3) and being connected with a sealing plate (7), the lower end face of the sealing plate (7) being formed with an air hole in communication with the air pipe (6); When the upper die (3) is displaced upward, the sealing plate (7) can shield the first air hole (8).

2. The foam box forming mold of claim 1, wherein, The annular structure (4) is provided with an exhaust hole at the abutment position with the opening of the lower die (2).

3. The foam box forming mold of claim 2, wherein, The upper end of the frame body (1) is provided with a gas cylinder (5), the piston rod of the gas cylinder (5) being connected with the upper die (3).

4. The foam box forming mold of claim 3, wherein, The side face of the upper die (3) is formed with a second air hole (9) in communication with the cavity, the edge of the sealing plate (7) being upwardly bent to form an annular shielding part, when the upper die (3) is displaced upward, the annular shielding part can shield the second air hole (9).

5. The foam box forming mold of claim 4, wherein, The upper end of the air pipe (6) is provided with an abutment head.

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