Foam box forming mold with rapid demolding and efficient cooling functions

Abstract

The invention discloses a foam box forming mold with rapid demolding and efficient cooling functions, the foam box forming mold comprises a fixed mold, a pressurizing pipe is welded to the upper end of the fixed mold, when the foam box forming mold is used, an injection molding machine is fixed through the fixed mold, then the injection molding machine is fixed through a movable mold, polysiloxane wax is placed on the inner wall of the fixed mold, and the movable mold is fixed through the pressurizing pipe; the micro slow release holes are sealed and fixed through porous ceramic plugs, the high-temperature-resistant fluororubber ring is attached and fixed through a fixed mold, the feeding pipe and the foam particle injection pipe are fixed in a threaded mode, the pressurizing pipe is fixed in a threaded mode through pressurizing equipment, raw materials are injected into the fixed mold, and the foam particles are heated through an electric heating pipe. According to the foam box forming mold with the rapid demolding and efficient cooling functions, the fixed mold and the movable mold are pressurized, finally, water is injected into a water inlet pipe, the formed foam box is cooled through a cooling cavity, the fixed mold is separated from the movable mold, and the formed foam box is discharged through internal air pressure, so that the foam box forming mold with the rapid demolding and efficient cooling functions is completed.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of foam box processing, in particular to a foam box forming die with rapid demolding and high-efficiency cooling functions. BACKGROUND

[0002] In many fields such as packaging, cold chain transportation, building insulation, etc., foam boxes have become an indispensable basic packaging material due to their excellent heat insulation, cushioning, light weight, low cost and other advantages. With the vigorous development of e-commerce and fresh food distribution industry, and the increasing strictness of building energy-saving standards, the demand for foam boxes in the market is growing rapidly, so we need a foam box forming die with rapid demolding and high-efficiency cooling functions.

[0003] However, the foam box forming die with rapid demolding and high-efficiency cooling functions currently in use has no temperature buffering, and the metal substrate of the die directly withstands severe temperature changes, which easily causes thermal stress concentration. After long-term use, fine cracks may appear on the surface of the die cavity, and the crack depth gradually expands with the increase of the number of uses, eventually leading to die failure. A single structure rubber sealing ring is often used as a sealing element and installed in a simple sealing groove on the parting surface. The contact area of the single sealing ring is small, and it cannot completely block the overflow of high-pressure steam and foam raw materials. The time required for manual application of demolding agent is too long, especially during peak order periods, the demolding agent application process becomes a production bottleneck, and it cannot meet the market's requirements for delivery cycle. Simple annular cooling waterways are often used, and the distance between the waterways and the surface of the cavity is inconsistent, resulting in insufficient cooling area. SUMMARY

[0004] The purpose of the present application is to provide a foam box forming die with rapid demolding and high-efficiency cooling functions to solve the problems raised in the background.

[0005] To achieve the above-mentioned purpose, the present application provides the following technical solutions: A foam box forming die with rapid demolding and high-efficiency cooling functions, comprising a fixed die, a pressurizing pipe is welded to the upper end of the fixed die, a feeding pipe is welded to one side of the fixed die, micro-release holes are formed in the inner walls of the fixed die, polysiloxane wax is installed on the inner walls of the micro-release holes, a porous ceramic plug is in contact with one side of the polysiloxane wax, a high-temperature-resistant fluororubber ring is attached to one side of the fixed die, a positioning ring is attached to one side of the high-temperature-resistant fluororubber ring, a movable die is welded to one side of the positioning ring, a water inlet pipe is welded to one side of the movable die, a water outlet pipe is welded to one side of the movable die, positioning rods are fixedly connected to the inner walls of the movable die, a sleeve is fixedly connected to the outer walls of the positioning rods, electric heating pipes are installed on the inner walls of the sleeve, a cooling cavity is formed in the inner walls of the movable die, and calcium chloride hexahydrate is provided on the inner walls of the movable die.

[0006] Preferably, the fixed mold is connected with the polysiloxane wax by clamping, and the polysiloxane wax is arranged at equal intervals on the inner wall of the fixed mold.

[0007] Preferably, the porous ceramic plug is connected with the fixed mold by clamping, and the porous ceramic plug is arranged in a circular structure.

[0008] Preferably, the outer wall of the high-temperature-resistant fluororubber ring is closely attached to the inner wall of the fixed mold, and the high-temperature-resistant fluororubber ring is arranged in a trapezoidal structure.

[0009] Preferably, the moving mold is arranged vertically with the water inlet pipe, and the inner wall of the water inlet pipe is arranged in a threaded shape.

[0010] Preferably, the positioning rod is connected with the sleeve by screwing, and the positioning rod is arranged symmetrically with the central axis of the sleeve.

[0011] Preferably, the electric heating pipe is arranged at equal intervals on the inner wall of the sleeve, and the electric heating pipe is arranged in a "C" shape.

[0012] Preferably, the outer wall of the calcium chloride hexahydrate is closely attached to the inner wall of the moving mold, and the length of the outer wall of the calcium chloride hexahydrate is less than the length of the inner wall of the moving mold.

[0013] Compared with the prior art, the present application has the following beneficial effects: 1. The micro slow-release hole is provided at the corner transition of the fixed mold, the micro slow-release hole is filled with polysiloxane wax, the micro slow-release hole is sealed by a porous ceramic plug, during the high-temperature foaming stage of the mold, the polysiloxane wax is melted by heat, slowly penetrates out to the surface of the cavity through the micropores of the porous ceramic plug, and forms a uniform lubricating film, during the cooling stage, the polysiloxane wax solidifies as the temperature decreases, adheres to the inner wall surface of the fixed mold, and continuously plays a lubricating role, the fixed mold is closely attached to the high-temperature-resistant fluororubber ring, the high-temperature-resistant fluororubber ring is arranged in a trapezoidal structure, after the fixed mold and the moving mold are closed, the sealing area of the high-temperature-resistant fluororubber ring and the positioning ring is expanded, the sealing effect is enhanced, the calcium chloride hexahydrate is arranged to prevent the mold from deforming due to excessively low temperature near the cooling water channel, is suitable for low-temperature buffering during the cooling stage of the mold, the cooling cavity is arranged in the moving mold, ensures that the cooling water channel can uniformly cover the entire surface of the cavity, and the water inlet pipe and the water outlet pipe are arranged in a water flow mode of entering from below and flowing out from above, which is beneficial to discharging air in the cooling water channel and improving the cooling efficiency. BRIEF DESCRIPTION OF DRAWINGS

[0014] Figure 1 It is a front view structural schematic diagram of the vertical view of the foam box forming mold with the functions of rapid demolding and high-efficiency cooling according to the present application; Figure 2 It is a rear view structural schematic diagram of the vertical view of the foam box forming mold with the functions of rapid demolding and high-efficiency cooling according to the present application; Figure 3It is a vertical split structure schematic view of the foam box forming die with quick demolding and high-efficiency cooling function of the present application; Figure 4 It is a structure schematic view of the partial part section of the foam box forming die with quick demolding and high-efficiency cooling function of the present application Figure 5 It is a structure schematic view of the die and pressurizing pipe part combination of the foam box forming die with quick demolding and high-efficiency cooling function of the present application; Figure 6 It is a structure schematic view of the Figure 3 A part enlarged structure schematic view in the figure; In the figure: 1, die; 2, pressurizing pipe; 3, feeding pipe; 4, micro slow-release hole; 5, polysiloxane wax; 6, porous ceramic plug; 7, high-temperature-resistant fluororubber ring; 8, positioning ring; 9, movable die; 10, water inlet pipe; 11, water outlet pipe; 12, positioning rod; 13, clamping sleeve; 14, electric heating pipe; 15, cooling cavity; 16, calcium chloride hexahydrate. DETAILED DESCRIPTION

[0015] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the protection scope of the present application.

[0016] Please refer to Figures 1-6 The present application provides a technical solution of a foam box forming die with quick demolding and high-efficiency cooling function: A foam box forming die with quick demolding and high-efficiency cooling function, comprising a die 1, a pressurizing pipe 2 welded to the upper end of the die 1, a feeding pipe 3 welded to one side of the die 1, micro slow-release holes 4 formed in the inner wall of the die 1, polysiloxane wax 5 installed on the inner wall of the micro slow-release holes 4, a porous ceramic plug 6 abutting one side of the polysiloxane wax 5, a high-temperature-resistant fluororubber ring 7 attached to one side of the die 1, a positioning ring 8 attached to one side of the high-temperature-resistant fluororubber ring 7, a movable die 9 welded to one side of the positioning ring 8, a water inlet pipe 10 welded to one side of the movable die 9, a water outlet pipe 11 welded to one side of the movable die 9, positioning rods 12 fixedly connected to the inner wall of the movable die 9, clamping sleeves 13 fixedly connected to the outer wall of the positioning rods 12, electric heating pipes 14 installed on the inner wall of the clamping sleeves 13, a cooling cavity 15 formed in the inner wall of the movable die 9, and calcium chloride hexahydrate 16 arranged in the cooling cavity 15.

[0017] The die 1 is connected with the polysiloxane wax 5 in a clamping manner, and the polysiloxane wax 5 is arranged at equal intervals on the inner wall of the die 1.

[0018] The porous ceramic plug 6 is in engagement with the fixed mold 1, and the porous ceramic plug 6 is in circular structure.

[0019] The outer wall of the high-temperature-resistant fluororubber ring 7 is closely combined with the inner wall of the fixed mold 1, and the high-temperature-resistant fluororubber ring 7 is in trapezoidal structure.

[0020] The movable mold 9 is vertically arranged with the water inlet pipe 10, and the inner wall of the water inlet pipe 10 is in screw thread shape.

[0021] The positioning rod 12 is in threaded connection with the sleeve 13, and the positioning rod 12 is symmetrically arranged with the central axis of the sleeve 13.

[0022] The electric heating pipe 14 is in equidistant arrangement on the inner wall of the sleeve 13, and the electric heating pipe 14 is in "C" shape structure.

[0023] The outer wall of the calcium chloride hexahydrate 16 is closely combined with the inner wall of the movable mold 9, and the outer wall length of the calcium chloride hexahydrate 16 is less than the inner wall length of the movable mold 9.

[0024] It should be noted that the present application is a kind of foam box forming mold with quick demolding and high efficiency cooling function, when using, the fixed mold 1 is fixed to the injection molding machine, then the movable mold 9 is fixed to the injection molding machine, the polysiloxane wax 5 is placed in the inner wall of the fixed mold 1, the porous ceramic plug 6 is sealed and fixed to the micro slow-release hole 4, then the fixed mold 1 is fixed to the high-temperature-resistant fluororubber ring 7, then the electric heating pipe 14 is sleeved into the movable mold 9, the sleeve 13 is clamped and fixed to the electric heating pipe 14, then the positioning rod 12 is screwed to the sleeve 13, then the water inlet pipe 10 and the water outlet pipe 11 are screwed to the cooling water pipe, then the feeding pipe 3 and the foam particle injection pipe are screwed, then the pressurizing equipment is screwed to the pressurizing pipe 2, then the raw material is injected into the fixed mold 1, the movable mold 9 is closed to the fixed mold 1, the electric heating pipe 14 is heated to the foam particles, the fixed mold 1 and the movable mold 9 are pressurized, finally the water inlet pipe 10 is injected, the cooling cavity 15 is cooled to the formed foam box, the fixed mold 1 is demolded to the movable mold 9, the internal air pressure is discharged to the formed foam box, so a kind of foam box forming mold with quick demolding and high efficiency cooling function is completed.

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

Claims

1. A foam box molding die with rapid demolding and efficient cooling functions, characterized in that: The system includes a fixed mold (1), with a pressure pipe (2) welded to the upper end of the fixed mold (1), a feed pipe (3) welded to one side of the fixed mold (1), micro-release holes (4) formed on the inner wall of the fixed mold (1), polysiloxane wax (5) installed on the inner wall of the micro-release holes (4), a porous ceramic plug (6) abutting one side of the polysiloxane wax (5), a high-temperature resistant fluororubber ring (7) attached to one side of the fixed mold (1), and a positioning ring (8) attached to one side of the high-temperature resistant fluororubber ring (7). A moving mold (9) is welded to one side of the ring (8), a water inlet pipe (10) is welded to one side of the moving mold (9), a water outlet pipe (11) is welded to one side of the moving mold (9), a positioning rod (12) is fixedly connected to the inner wall of the moving mold (9), a sleeve (13) is fixedly connected to the outer wall of the positioning rod (12), an electric heating tube (14) is installed on the inner wall of the sleeve (13), a cooling cavity (15) is opened on the inner wall of the moving mold (9), and calcium chloride hexahydrate (16) is provided on the inner wall of the moving mold (9).

2. The foam box molding die with rapid demolding and efficient cooling functions according to claim 1, characterized in that: The fixed mold (1) is engaged with the polysiloxane wax (5), and the polysiloxane wax (5) is arranged at equal intervals on the inner wall of the fixed mold (1).

3. The foam box molding mold with rapid demolding and efficient cooling functions according to claim 1, characterized in that: The porous ceramic plug (6) is engaged with the fixed mold (1), and the porous ceramic plug (6) is circular in shape.

4. The foam box molding mold with rapid demolding and efficient cooling functions according to claim 1, characterized in that: The outer wall of the high-temperature resistant fluororubber ring (7) is tightly fitted to the inner wall of the fixed mold (1), and the high-temperature resistant fluororubber ring (7) is set in a trapezoidal structure.

5. A foam box molding mold with rapid demolding and efficient cooling functions according to claim 1, characterized in that: The moving mold (9) is perpendicular to the water inlet pipe (10), and the inner wall of the water inlet pipe (10) is threaded.

6. A foam box molding mold with rapid demolding and efficient cooling functions according to claim 1, characterized in that: The positioning rod (12) is threadedly connected to the sleeve (13), and the positioning rod (12) is symmetrically arranged with respect to the central axis of the sleeve (13).

7. A foam box molding die with rapid demolding and efficient cooling functions according to claim 1, characterized in that: The electric heating tubes (14) are arranged at equal intervals on the inner wall of the sleeve (13), and the electric heating tubes (14) are arranged in a "C" shape.

8. A foam box molding mold with rapid demolding and efficient cooling functions according to claim 1, characterized in that: The outer wall of the calcium chloride hexahydrate (16) is closely fitted with the inner wall of the moving mold (9), and the length of the outer wall of the calcium chloride hexahydrate (16) is less than the length of the inner wall of the moving mold (9).

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