Preservation box production line and manufacturing method
By using a method of perforated sheet conveying, heating, and hot pressing on the food storage container production line, the problem of drilling holes on the sides of food storage containers has been solved, reducing costs and improving ventilation and breathability, thus meeting the requirements for high ventilation and breathability.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- SHANTOU LINGHAI PLASTIC PACKING FACTORY
- Filing Date
- 2026-04-02
- Publication Date
- 2026-07-10
AI Technical Summary
Existing methods for manufacturing food storage containers make it difficult to drill holes on the sides of the container body, resulting in high costs and poor ventilation, which cannot meet the storage requirements of items with high ventilation.
The system employs a perforated sheet conveying mechanism, a heating mechanism, and a thermoforming mechanism. By pre-drilling holes in the sheet and then heating and thermoforming it, a food storage container is formed. Multiple ventilation holes are processed using general-purpose punching and thermoforming equipment.
It reduces the production cost of food storage containers, enables the processing of ventilation holes at any position on the containers, improves ventilation and breathability, and meets the needs of different products.
Smart Images
Figure CN122353979A_ABST
Abstract
Description
Technical Field
[0001] This invention relates to a food storage container production line and manufacturing method. Background Technology
[0002] Currently, food storage containers are widely used for storing items that require ventilation, such as fruits. However, existing methods for manufacturing food storage containers involve first processing the container body using molding equipment, and then using a punching machine to punch holes in the container body.
[0003] However, the drawback of this manufacturing method is that the drilling equipment has difficulty drilling holes on the sides of the food storage container, resulting in excessively high costs that make it unacceptable to the market. This means that most common food storage containers on the market only have holes on the top surface of the lid and / or the bottom surface of the container, thus providing insufficient ventilation and breathability.
[0004] For example, the blueberry storage box disclosed in announcement number CN206719892U, entitled "A Blueberry Storage and Preservation Box", includes a box body and a lid. The box body and the lid are connected to each other on one side. Circular grooves are provided on the four corners of the box body, and circular protrusions matching the circular grooves are provided on the four corners of the lid. Reinforcing ribs are provided on the upper inner edge of the lid. A sticky note area is provided at the center of the top outer side of the lid. Several vents are provided at the bottom of the box body, and absorbent paper is pasted on the bottom of the box body.
[0005] This type of food storage container is made by using thermoforming equipment to form the container and then using general-purpose punching equipment (with a drill bit moving vertically to punch holes) to create vents. This method is low-cost and easy to implement. However, this food storage container only has multiple vents on the bottom surface of the container, so the ventilation and breathability are not good enough, making it unsuitable for storing items that require high ventilation and breathability.
[0006] Therefore, improvements to manufacturing equipment and / or manufacturing methods are needed to significantly reduce production costs in order to solve the above problems. Summary of the Invention
[0007] The first objective of this invention is to provide a food storage container production line that can create ventilation holes at any location on the food storage container body, and can effectively reduce costs. The technical solution adopted is as follows:
[0008] A food storage container production line, characterized in that: it includes...
[0009] Perforated sheet conveying mechanism for conveying perforated sheets;
[0010] The heating mechanism heats the area of the perforated sheet to be formed.
[0011] The thermoforming mechanism thermoforms the perforated sheet's forming area, creating a semi-finished food storage container ready for punching and cutting. This production line heats the sheet with pre-processed ventilation holes and then thermoforms it into a food storage container. This process facilitates punching, allowing the use of general-purpose punching equipment. The heat-pressing method effectively shapes sheets with multiple ventilation holes into the desired form. This production line revolutionizes the food storage container manufacturing process, significantly reducing manufacturing difficulty and enabling the use of general-purpose equipment (punching and thermoforming equipment), thus substantially lowering production costs.
[0012] In a preferred embodiment, the hot pressing forming mechanism uses a cooperating punch and die to press and form the perforated sheet area to be formed, pressing the sheet area to be formed out of the food storage container body to form a semi-finished food storage container to be punched and sheared.
[0013] A preferred embodiment is that the food storage box production line also includes a punching mechanism, which punches multiple through holes in the whole sheet to form a perforated sheet with multiple through holes in the area to be formed.
[0014] A better solution is to use a die-cutting machine as the punching mechanism. A die-cutting machine is a specialized piece of equipment that uses a die or laser to precisely cut, shape, and process materials such as paper and film. The die-cutting machine uses pressure or laser energy to cut, indent, or remove waste from materials according to a preset shape.
[0015] In a preferred embodiment, the food storage container production line also includes a punching and shearing mechanism to punch and shear the periphery of the perforated sheet food storage container semi-finished product to produce the finished food storage container.
[0016] A better solution is that the food storage box production line also includes a stacking mechanism that forces the finished food storage boxes to detach from the sheet and stacks them vertically.
[0017] The second objective of this invention is to provide a method for manufacturing a food storage container. This method can produce a food storage container with ventilation holes at any location, and it is low in cost. The technical solution adopted is as follows:
[0018] A method for manufacturing a food storage container, characterized by comprising the following steps:
[0019] (1) Punch holes in a whole sheet to make a perforated sheet;
[0020] (2) Heat the perforated sheet to make a preheated sheet;
[0021] (3) The preheated sheet is hot-pressed to form a semi-finished food storage box to be punched and cut.
[0022] This method of manufacturing food storage containers changes the processing steps, thus significantly reducing the difficulty of manufacturing. Moreover, it can be achieved using general-purpose equipment (punching equipment, thermoforming equipment), thereby greatly reducing the production cost of food storage containers.
[0023] In a preferred embodiment, the method for manufacturing the food storage box further includes step (4) punching and cutting the semi-finished food storage box on the sheet to be punched and cut, thereby producing the finished food storage box.
[0024] A better solution is that the manufacturing method of the food storage box further includes step (5) pushing the finished food storage box downwards so that the finished food storage box is separated from the sheet and stacked vertically in sequence to obtain a stack of vertically stacked finished food storage boxes.
[0025] A better solution is that the method of manufacturing the food storage box further includes step (6) of stacking the vertically stacked finished food storage boxes.
[0026] A better solution is that the method of manufacturing the food storage box further includes step (7) of stacking the vertically stacked finished food storage boxes into the packaging.
[0027] The advantages of this invention compared to the prior art are that, since the sheet is first made with ventilation holes and then heated and pressed to form a food storage box, the food storage box is simple and convenient to manufacture, the equipment has a simple structure and low cost, and the manufacturing method of making holes first and then hot pressing can produce food storage boxes with ventilation holes at any position to meet the needs of different products, and it is also low in cost and high in work efficiency. Attached Figure Description
[0028] Figure 1 This is a schematic diagram of the structure of one embodiment of the present invention;
[0029] Figure 2 yes Figure 1 The diagram shown is a schematic of the embodiment after the rack has been removed;
[0030] Figure 3 yes Figure 2 A schematic diagram of the heating mechanism and the hot pressing mechanism;
[0031] Figure 4 yes Figure 2 A schematic diagram of the stacking mechanism;
[0032] Figure 5 This is a top view of a perforated sheet processed according to an embodiment of the present invention;
[0033] Figure 6 This is a structural schematic diagram of an embodiment of the present invention. Detailed Implementation
[0034] like Figure 1-4As shown, a food storage container production line in one embodiment of this application includes...
[0035] Perforated sheet conveying mechanism 1 conveys perforated sheets;
[0036] Heating mechanism 2 heats the area of the perforated sheet to be formed;
[0037] The hot-press forming mechanism 3 performs hot-press forming on the perforated sheet's forming area, creating a semi-finished food storage container ready for punching and cutting. This production line heats the sheet with pre-processed ventilation holes and then forms the food storage container through hot-press forming. This facilitates punching, allowing the use of general-purpose punching equipment. Furthermore, the hot-press forming method effectively shapes sheets with multiple ventilation holes into the desired form. This production line changes the processing method of food storage containers, significantly reducing manufacturing difficulty and allowing the use of general-purpose equipment (punching equipment, hot-press forming equipment), thus greatly reducing the production cost of food storage containers.
[0038] like Figure 5 As shown, in one alternative embodiment of this application, the perforated sheet is a sheet with multiple through holes in the area to be formed.
[0039] like Figure 1 As shown, in one optional embodiment of this application, the perforated sheet conveying mechanism 1 includes a frame 101 and two parallel tracks 102 respectively mounted on the frame 101. The perforated sheet moves along the two tracks 102. The perforated sheet can be manually dragged or dragged by automated equipment (such as a robotic arm). The movement of the perforated sheet is intermittent, that is, it moves a preset distance and then stops for a preset time.
[0040] like Figure 1-3 As shown, in one alternative embodiment of this application, the heating mechanism 2 includes a plurality of upper heating devices 201, each of which is mounted on the frame 101 to heat the perforated sheet passing through.
[0041] like Figure 1-3 As shown, in one optional embodiment of this application, the hot pressing forming mechanism 3 uses a cooperating punch 301 and die 302 to press and form the perforated sheet area to be formed, pressing the sheet area to be formed out of the food storage box body to form a semi-finished food storage box to be punched and sheared.
[0042] like Figure 1-3As shown, in one optional embodiment of this application, the hot pressing forming mechanism 3 uses a first lifting device 303 to drive the punch 301 to rise and fall, and a second lifting device 304 to drive the die 302 to rise and fall, so that the punch 301 and the die 302 cooperate to close together and complete the pressing forming of the perforated sheet area.
[0043] like Figure 1-3 As shown, in one alternative embodiment of this application, both the first lifting device 303 and the second lifting device 304 are composed of a servo motor and a crank mechanism.
[0044] In one alternative embodiment of this application, the first lifting device 303 and the second lifting device 304 are hydraulic cylinders.
[0045] In one alternative embodiment of this application, the first lifting device 303 and the second lifting device 304 adopt the same driving device and use a transmission mechanism to synchronously drive the punch 301 and the die 302 to lift.
[0046] like Figure 5 , 6 As shown, in one alternative embodiment of this application, the food storage box production line further includes a punching mechanism 4, which punches multiple through holes in the whole sheet to form a perforated sheet with multiple through holes in the area to be formed.
[0047] like Figure 6 As shown, in one optional embodiment of this application, the punching mechanism 4 is a die-cutting machine. A die-cutting machine is a specialized device that uses a die or laser to precisely cut, shape, and process materials such as paper and film. The die-cutting machine uses pressure or laser energy to cut, indent, or remove waste from materials according to a preset shape. In this embodiment, the perforated sheet produced by the punching mechanism 4 (die-cutting machine) is directly fed to the perforated sheet conveying mechanism 1 on the right side.
[0048] like Figure 1 , 2 As shown, in one optional embodiment of this application, the food storage box production line further includes a punching and shearing mechanism 5, which punches and shears the periphery of the perforated sheet food storage box semi-finished product to be punched and sheared, to produce the finished food storage box.
[0049] like Figure 1 , 2 As shown in Figure 4, in an optional embodiment of this application, the food storage container production line further includes a stacking mechanism 6, which detaches the finished food storage containers from the perforated sheet and stacks them vertically. After the punching and shearing process, the finished food storage containers are still attached to the perforated sheet and have not fallen off. Therefore, the stacking mechanism 6 is needed to push the finished food storage containers downwards, forcing them to detach from the perforated sheet and stack them vertically in sequence to form a stack of finished food storage containers for storage and transportation.
[0050] like Figure 1 , 2 As shown in Figure 4, in an optional embodiment of this application, the stacking mechanism 6 includes a mounting frame 601, a lifting device 602, and multiple vertical push-box rods 603. The mounting frame 601 is mounted on the frame 1, the upgrading cylinder 602 is mounted on the mounting frame 601, the lifting device 602 has a lifting end that can move in the vertical direction, and all the vertical push-box rods 603 are respectively mounted on the lifting end of the lifting device 602.
[0051] like Figure 1 , 2 As shown in Figure 4, in one optional embodiment of this application, the lifting device 602 is a cylinder, and the lifting end is the piston shaft of the cylinder.
[0052] In one alternative embodiment of this application, the lifting device 602 is a vertically arranged synchronous belt conveyor mechanism, and the lifting end is a liftable block installed on the synchronous belt. The synchronous belt performs vertical lifting and lowering movements, thereby driving the liftable block to perform vertical lifting and lowering movements.
[0053] like Figure 1 , 2 As shown in Figure 4, in one optional embodiment of this application, the stacking mechanism 6 further includes multiple partition plates 604, each partition plate 604 being mounted on the mounting frame 601. The function of the partition plates 604 is to separate the finished food storage containers that are stacked, so that they can be stacked together.
[0054] like Figure 1 , 2 As shown, in an optional embodiment of this application, the perforated sheet conveying mechanism 1 further includes a waste material winding device 103. The waste material winding device 103 drags the perforated sheet along two tracks 102 and winds up the portion of the perforated sheet that has lost its shape as part of the finished food storage container. In this embodiment, the waste material winding device 103 uses a servo motor to drive the winding shaft to rotate, thereby achieving the purpose of winding up the portion of the perforated sheet that has lost its shape as part of the finished food storage container surrounding the winding shaft.
[0055] An alternative embodiment of this application discloses a method for manufacturing a food storage container, comprising the following steps:
[0056] (1) Punch holes in a whole sheet to make a perforated sheet;
[0057] (2) Heat the perforated sheet to make a preheated sheet;
[0058] (3) The preheated sheet is hot-pressed to form a semi-finished food storage box to be punched and cut.
[0059] The semi-finished food storage container produced in this embodiment has multiple ventilation holes in the lid, and multiple ventilation holes on the bottom and sides of the container body. Therefore, it has good ventilation and breathability, and the manufacturing cost is low. The container with multiple semi-finished food storage containers to be cut is fed out, and the semi-finished food storage containers to be cut from the sheet is completed by manual or automatic equipment to obtain the finished food storage container.
[0060] This method of manufacturing food storage containers changes the processing steps, thus significantly reducing the difficulty of manufacturing. Moreover, it can be achieved using general-purpose equipment (including punching equipment and thermoforming equipment), thereby greatly reducing the production cost of food storage containers.
[0061] In one alternative embodiment of this application, the method for manufacturing the food storage box further includes step (4) punching and cutting the semi-finished food storage box to be punched and cut on the perforated sheet to produce the finished food storage box.
[0062] In one optional embodiment of this application, the method of manufacturing the food storage box further includes step (5) pushing the finished food storage box downwards so that the finished food storage box is separated from the perforated sheet and stacked vertically in sequence to obtain a stack of vertically stacked finished food storage boxes.
[0063] In one alternative embodiment of this application, the method for manufacturing the food storage container further includes step (6) of conveying the vertically stacked finished food storage containers.
[0064] In one alternative embodiment of this application, the method of manufacturing the food storage box further includes step (7) of stacking the vertically stacked finished food storage boxes into a package.
[0065] Furthermore, it should be noted that the names of the various parts of the specific embodiments described in this specification may differ. All equivalent or simple variations made to the structure, features, and principles described in this invention are included within the scope of protection of this invention. Those skilled in the art can make various modifications or additions to the described specific embodiments or use similar methods to replace them, as long as they do not deviate from the structure of this invention or exceed the scope defined in these claims, all of which should fall within the scope of protection of this invention.
Claims
1. A food storage container production line, characterized in that: include Perforated sheet conveying mechanism for conveying perforated sheets; The heating mechanism heats the area of the perforated sheet to be formed. The hot pressing forming mechanism performs hot pressing forming on the area to be formed of the perforated sheet, and produces a semi-finished food storage box to be punched and cut on the perforated sheet.
2. The food storage container production line as described in claim 1, characterized in that: The perforated sheet is a sheet with multiple through holes in the area to be formed.
3. The food storage container production line as described in claim 1, characterized in that: The hot pressing forming mechanism uses a cooperating punch and die to press the perforated sheet material into the forming area, pressing the sheet material from the forming area out of the food storage container body to form a semi-finished food storage container to be punched and cut.
4. The food storage container production line as described in claim 1, characterized in that: The food storage box production line also includes a punching mechanism, which punches multiple through holes in a complete sheet to create a perforated sheet with multiple through holes in the area to be formed.
5. The food storage container production line as described in claim 4, characterized in that: The punching mechanism is a die-cutting machine.
6. The food storage container production line as described in claim 1, characterized in that: The food storage container production line also includes a punching and shearing mechanism, which punches and shears the periphery of the perforated sheet food storage container semi-finished product to produce the finished food storage container.
7. The food storage container production line as described in claim 6, characterized in that: The food storage box production line also includes a stacking mechanism that forces the finished food storage boxes to detach from the sheet and stacks them vertically.
8. A method for manufacturing a food storage container, characterized in that: Includes the following steps: (1) Punch holes in a whole sheet to make a perforated sheet; (2) Heat the perforated sheet to make a preheated sheet; (3) The preheated sheet is hot-pressed to form a semi-finished food storage box to be punched and cut.
9. The method for manufacturing a food storage container as described in claim 8, characterized in that: It also includes step (4) punching and cutting the semi-finished food storage box on the sheet to make the finished food storage box.
10. The method for manufacturing a food storage container as described in claim 9, characterized in that: It also includes step (5) pushing the finished food storage box downwards so that the finished food storage box is separated from the sheet and stacked vertically in sequence to obtain a stack of vertically stacked finished food storage boxes.