Disposable meal box mold facilitating demolding

Abstract

This application discloses a disposable lunch box mold that facilitates demolding, belonging to the field of disposable lunch box production technology. The lunch box mold includes a hot press molding machine and a processing table installed on the hot press molding machine. A control main box is provided on the side of the hot press molding machine. A support platform and a lower mold installed on the support platform are provided on the processing table. A hot press platform aligned with the support platform is provided on the hot press molding machine. An upper mold is installed on the hot press platform. A cooling mechanism is provided on the support platform. The cooling mechanism includes several air guide plates arranged in a rectangular array on the support platform. The air guide plates descend into the interior of the support platform through the second through hole and the first through hole after being squeezed by the upper mold. After the plastic sheet is formed, the upper mold resets, and the spring pushes the air guide plates to extend. The air cooler supplies air to the air guide plates through the air guide pipe, air distribution pipe, hose, and ventilation pipe. The cold air is blown to the sides of the lunch box through the air guide plates to accelerate cooling, thereby making it easier for the formed lunch box to be demolded from the mold.

Description

Technical Field

[0001] This application relates to the field of disposable lunch box production technology, specifically a disposable lunch box mold that is easy to demold. Background Technology

[0002] With increasing environmental awareness, disposable plastic lunch boxes are widely used in daily life, especially in the food delivery and catering industries, where they are convenient, hygienic, and efficient. To meet the growing market demand, manufacturers are raising the bar for disposable lunch box production. Thermoforming, as one of the main production processes for disposable lunch boxes, is widely used because it enables large-scale and efficient production.

[0003] Currently, in traditional thermoforming machine mold designs, after the food container is thermoformed, it is usually pressed onto the lower mold. When the food container is formed in the mold and gradually cools down, the surface of the food container will adhere to the mold due to the high temperature. At this time, the friction between the food container and the mold is large, and the residual heat makes the surface of the food container soft, which directly leads to difficulties in the demolding process. In order to complete the demolding, the workers often need to operate manually, using various tools to assist in demolding, and may even pry the product with force to remove the food container from the mold. This method not only increases the difficulty of operation, but may also cause deformation and damage to the food container product, thereby affecting production efficiency and product quality.

[0004] Therefore, this application provides a disposable lunch box mold that is easy to demold, in order to solve the above problems. Utility Model Content

[0005] This application provides a disposable lunch box mold that facilitates demolding, aiming to solve the problem mentioned in the background art where lunch box products are usually pressed onto a lower mold, and when the lunch box is formed in the mold and gradually cools down, the surface of the lunch box will adhere to the mold due to the high temperature.

[0006] To achieve the above objectives, this application provides the following technical solution: a disposable lunch box mold that is easy to demold, comprising a hot press forming machine and a processing table installed on the hot press forming machine, a control main box is provided on the side of the hot press forming machine, a support table and a lower mold installed on the support table are provided on the processing table, a hot press forming machine is provided with a hot press table aligned with the support table, and an upper mold is installed on the hot press table;

[0007] A cooling mechanism is provided on the support platform;

[0008] The cooling mechanism includes several air guide plates arranged in a rectangular array on the support platform. The lower mold has several second through holes for the air guide plates to pass through. The processing table has an accommodating cavity inside. A cooler is installed in the accommodating cavity to supply air to the air guide plates. The layout of the cooling mechanism and the hot pressing system is clearly defined. The directional cooling after molding is achieved by the cooperation of the cooler and the air guide plates.

[0009] Preferably, the upper end of the support platform is provided with a first through hole for the air guide plate to move through, so as to ensure the freedom of movement of the air guide plate when the mold is closed and prevent mechanical interference.

[0010] Preferably, the interior of the support platform has a rectangular array of several support plates connected to the air guide plate. The lower end of the air guide plate is symmetrically equipped with fixed columns connected to the support plates. The lower end of the support plates is symmetrically equipped with springs connected to the support platform. The springs provide the driving force for the extension and retraction of the air guide plate, thereby realizing the automatic linkage of the cooling mechanism.

[0011] Preferably, the four corners of the support plate are provided with limiting seats connected to the support platform, and the limiting seats are fixedly installed with limiting rods that pass through the support plate to prevent the air guide plate from tilting or getting stuck during the extension and retraction process, thus ensuring the motion accuracy.

[0012] Preferably, the support platform is equipped with an air distribution pipe, the lower end of the air guide plate is fixedly installed with an air vent connected to the support plate, the upper end of the air distribution pipe is equipped with a number of flexible hoses connected to the air vent at equal intervals, the air cooler is symmetrically provided with two air outlets, and each air outlet is provided with an air guide pipe connected to the air distribution pipe. The air distribution pipe adopts an equidistant flow distribution design to ensure uniform cooling of all parts of the lunch box.

[0013] Preferably, a door panel is detachably installed on the front of the processing table, and ventilation holes are provided on both the processing table and the door panel.

[0014] In this lunchbox mold, the air guide plate is pressed down through the second and first through holes into the interior of the support platform by the upper mold. After the plastic sheet is formed, the upper mold resets, and the spring pushes the air guide plate to extend. The air cooler supplies air to the air guide plate through the air guide pipe, air distribution pipe, hose, and ventilation pipe. The cold air is blown around the lunchbox through the air guide plate to accelerate cooling, thus making it easier for the formed lunchbox to be removed from the mold. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the structure of a disposable lunch box mold that facilitates demolding;

[0016] Figure 2 This is a schematic diagram of the air conditioner's structure;

[0017] Figure 3 This is a schematic diagram of the lower mold structure;

[0018] Figure 4 This is a schematic diagram of the support platform.

[0019] Figure 5 This is a schematic diagram of the air guide plate.

[0020] Figure 6 This is a schematic diagram of the support plate.

[0021] In the picture:

[0022] 1. Hot press molding machine; 11. Control box; 2. Support platform; 21. First through hole; 3. Hot press platform; 31. Upper mold; 4. Processing table; 5. Door panel; 6. Lower mold; 61. Second through hole; 7. Cooling mechanism; 71. Air guide plate; 711. Fixed column; 712. Vent pipe; 72. Support plate; 73. Hose; 74. Limit seat; 741. Limit rod; 75. Spring; 76. Air distribution pipe; 77. Air cooler; 78. Air guide pipe. Detailed Implementation

[0023] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0024] This embodiment provides a disposable lunch box mold that is easy to demold, such as... Figure 1-6 As shown, the lunch box mold includes a hot press forming machine 1 and a processing table 4 installed on the hot press forming machine 1. A control main box 11 is provided on the side of the hot press forming machine 1. A support table 2 and a lower mold 6 installed on the support table 2 are provided on the processing table 4. A hot press forming machine 1 is provided with a hot press table 3 aligned with the support table 2. An upper mold 31 is installed on the hot press table 3.

[0025] A cooling mechanism 7 is installed on the support platform 2;

[0026] The cooling mechanism 7 includes several air guide plates 71 arranged in a rectangular array on the support platform 2. The lower mold 6 has several second through holes 61 for the air guide plates 71 to pass through. The processing table 4 has an accommodating cavity inside, and a cooler 77 for supplying air to the air guide plates 71 is installed in the accommodating cavity.

[0027] Specifically, the hot press molding machine 1 is started by controlling the main box 11. The hot press table 3 drives the upper mold 31 to descend and close with the lower mold 6 on the support table 2, hot pressing the plastic sheet. The air guide plate 71 of the cooling mechanism 7 passes through the second through hole 61 of the lower mold 6 and is pressed into the lower mold 6 by the upper mold 31 during hot pressing. The air guide plate 71 is also pressed down from the second through hole 61 and the first through hole 21 by the upper mold 31 and descends into the interior of the support table 2. After the plastic sheet is formed, the upper mold... 31 Reset, spring 75 pushes the air guide plate 71 to extend, air cooler 77 supplies air to air guide plate 71 through air guide pipe 78, air distribution pipe 76, hose 73, and air vent 712. The cold air is blown around the lunch box through air guide plate 71 to accelerate cooling, so that the molded lunch box can be more easily removed from the mold. Air guide plate 71 is made of heat-resistant ABS plastic. The air vent of air guide plate 71 faces the side wall of the lunch box. The air outlet width is 3-5mm to ensure that the cold air covers the edge of the lunch box where it is easy to stick.

[0028] The upper end of the support platform 2 is provided with a first through hole 21 for the air guide plate 71 to move through.

[0029] More specifically, the first through hole 21 and the second through hole 61 are horizontally aligned. The first through hole 21 of the support platform 2 provides a vertical movement channel for the air guide plate 71. During hot pressing, the air guide plate 71 can be completely retracted into the hole, and the top of the air guide plate 71 is level with the top of the second through hole 61, thereby avoiding the presence of the air guide plate 71 from affecting the molding of the plastic sheet.

[0030] The interior of the support platform 2 has a rectangular array of several support plates 72 connected to the air guide plate 71. The lower end of the air guide plate 71 is symmetrically equipped with fixed columns 711 connected to the support plates 72, and the lower end of the support plates 72 is symmetrically equipped with springs 75 connected to the support platform 2.

[0031] Furthermore, the support plate 72 fixes the fixing column 711 of the air guide plate 71, the lower end of the spring 75 is connected to the support platform 2, and the upper end supports the support plate 72 to form an elastic connection. During hot pressing, the spring 75 is compressed to store energy, and after forming, it releases the elastic force to push the air guide plate 71 out. The spring 75 is a compression spring 75 with a free length of 80mm, a compression stroke of 40mm, and a galvanized surface treatment.

[0032] The four corners of the support plate 72 are provided with limiting seats 74 connected to the support platform 2. The limiting seats 74 are fixedly installed with limiting rods 741 that pass through the support plate 72.

[0033] Furthermore, the limiting rod 741 inside the limiting seat 74 passes through the support plate 72, restricting the lateral displacement of the air guide plate 71 and allowing only vertical movement, preventing the air guide plate 71 from tilting or jamming during extension and retraction, and ensuring movement accuracy.

[0034] The support platform 2 is equipped with an air distribution pipe 76. The lower end of the air guide plate 71 is fixedly installed with an air vent 712 connected to the support plate 72. Several flexible hoses 73 connected to the air vent 712 are installed at equal intervals on the upper end of the air distribution pipe 76. The air conditioner 77 is symmetrically provided with two air outlets, and each air outlet is provided with an air guide pipe 78 connected to the air distribution pipe 76.

[0035] It should be noted that the air conditioner 77 delivers cold air to the air distribution pipe 76 through the air duct 78, and distributes it to each air guide plate 71 through the hose 73 and the air vent 712. The cold air is blown out from the exhaust holes on the air guide plate 71, thus constructing a cold air transmission path and realizing the uniform distribution and directional delivery of cold air. The air conditioner 77 is a vortex-type air pump. The rated air volume and the output cold air are adjusted by controlling the main box 11 to adjust the wind speed and match the cooling needs of lunch boxes of different thicknesses.

[0036] The front of the processing table 4 is detachably fitted with a door panel 5, and ventilation holes are provided on both the processing table 4 and the door panel 5.

[0037] It is worth mentioning that the door panel 5 of the processing table 4 is removable, which facilitates the maintenance of the air conditioner 77. The ventilation holes ensure air circulation in the cavity and assist the air conditioner 77 in heat dissipation.

[0038] In use, the hot press molding machine 1 is started by controlling the main box 11. The hot press table 3 drives the upper mold 31 to descend and close with the lower mold 6 on the support table 2 to hot press the plastic sheet. The air guide plate 71 of the cooling mechanism 7 passes through the second through hole 61 of the lower mold 6 and is pressed into the lower mold 6 by the upper mold 31 during hot pressing. The air guide plate 71 is squeezed by the upper mold 31 and descends from the second through hole 61 and the first through hole 21 into the interior of the support table 2. After the plastic sheet is formed, the upper mold 31 is reset, the spring 75 pushes the air guide plate 71 to extend, and the cold air is blown to the sides of the lunch box through the air guide plate 71 to accelerate cooling, so that the formed lunch box can be more easily removed from the mold.

[0039] The above description is merely a preferred embodiment of this application, but the scope of protection of this application is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in this application, based on the technical solution and concept of this application, should be included within the scope of protection of this application.

Claims

1. A disposable lunch box mold that is easy to demold, comprising a hot press molding machine (1) and a processing table (4) installed on the hot press molding machine (1), wherein a control main box (11) is provided on the side of the hot press molding machine (1), a support table (2) and a lower mold (6) installed on the support table (2) are provided on the processing table (4), a hot press table (3) aligned with the support table (2) is provided on the hot press molding machine (1), and an upper mold (31) is installed on the hot press table (3); Its features are: A cooling mechanism (7) is provided on the support platform (2); The cooling mechanism (7) includes several air guide plates (71) arranged in a rectangular array on the support platform (2). The lower mold (6) has several second through holes (61) for the air guide plates (71) to pass through. The processing table (4) has an accommodating cavity inside, and a cooler (77) for supplying air to the air guide plates (71) is installed in the accommodating cavity.

2. The disposable lunch box mold for easy demolding according to claim 1, characterized in that: The upper end of the support platform (2) is provided with a first through hole (21) for the air guide plate (71) to move through.

3. The disposable lunch box mold for easy demolding according to claim 2, characterized in that: The interior of the support platform (2) is arranged in a rectangular array with several support plates (72) connected to the air guide plate (71). The lower end of the air guide plate (71) is symmetrically equipped with fixed columns (711) connected to the support plates (72), and the lower end of the support plates (72) is symmetrically equipped with springs (75) connected to the support platform (2).

4. The disposable lunch box mold for easy demolding according to claim 3, characterized in that: The support plate (72) is provided with limiting seats (74) at its four corners, which are connected to the support platform (2). The limiting seats (74) are fixedly installed with limiting rods (741) that pass through the support plate (72).

5. The disposable lunch box mold for easy demolding according to claim 4, characterized in that: The support platform (2) is equipped with an air distribution pipe (76). The lower end of the air guide plate (71) is fixedly equipped with a ventilation pipe (712) connected to the support plate (72). The upper end of the air distribution pipe (76) is equipped with several flexible hoses (73) connected to the ventilation pipe (712) at equal intervals. The air conditioner (77) is symmetrically equipped with two air outlets, and each air outlet is equipped with a guide pipe (78) connected to the air distribution pipe (76).

6. The disposable lunch box mold for easy demolding according to claim 1, characterized in that: The front of the processing table (4) is detachably fitted with a door panel (5), and ventilation holes are provided on both the processing table (4) and the door panel (5).

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