A production and processing equipment for plastic lunch boxes

Abstract

This utility model relates to the field of plastic processing technology and discloses a production and processing equipment for plastic lunch boxes, including a support plate, a first support rod, a first fixed plate, a second support rod, and a second fixed plate. A separation component is fixedly installed on the top of the second fixed plate, and the separation component includes a cylinder cover fixedly installed on the top of the second fixed plate. After molding, the push rod passes through the opening to push the chassis, which drives the annular block and the separation rod component to accurately separate the molded lunch box from the inner wall of the lower mold, avoiding the adhesion problem common in traditional processes. This ensures product integrity, reduces subsequent manual cleaning processes, and improves production continuity. The sliding rod design effectively maintains the stability of the chassis during movement, avoiding movement jamming or positional displacement caused by component shaking, ensuring the reliability of the entire equipment during high-frequency operation, reducing the risk of failure, and extending the service life of the equipment.

Description

Technical Field

[0001] This utility model relates to the field of plastic processing technology, and more specifically, to a production and processing equipment for plastic lunch boxes. Background Technology

[0002] The development of plastic lunch box production and processing is deeply intertwined with social demand and technological upgrades. With the explosive growth of the food delivery economy and the advancement of catering standardization, its market size continues to expand. In 2023, the market size of disposable plastic tableware in my country exceeded 50 billion yuan, with an annual growth of 8%, forcing production to transform towards large-scale and automated production. At the same time, the widespread use of biodegradable materials such as PLA and PBAT has placed higher demands on equipment compatibility. Traditional processes, due to insufficient temperature control precision and low demolding efficiency, have increased the scrap rate of new materials by more than 30%.

[0003] Existing plastic lunchbox production and processing equipment has significant shortcomings in the molding process. After the lunchbox is extruded by the upper mold, due to residual pressure and material properties, it is very easy for it to stick to the inner wall of the lower mold. This makes the unloading process highly dependent on manual operation. Operators need to manually peel off the sticky lunchboxes and clean the mold throughout the process. This not only requires frequent contact with high-temperature parts, posing a risk of burns, but also requires a lot of effort to control the peeling force. The labor intensity is high and the efficiency is low. At the same time, it causes serious interruptions in production continuity. The uncertainty of manual operation can easily lead to quality problems such as edge deformation and surface scratches of the lunchboxes. Therefore, improvement and optimization are needed. Utility Model Content

[0004] In order to overcome the shortcomings of the existing technology, this utility model provides a production and processing equipment for plastic lunch boxes, which has the advantage of reducing the adhesion between plastic lunch boxes and molds.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a production and processing equipment for plastic lunch boxes, comprising a support plate, a first support rod, a first fixed plate, a second support rod, and a second fixed plate. A separation component is fixedly installed on the top of the second fixed plate. The separation component includes a cylinder cover fixedly installed on the top of the second fixed plate. A cylinder is fixedly installed inside the cylinder cover and penetrates the second fixed plate. An upper mold is fixedly installed at the end of the output shaft of the cylinder. A support frame is fixedly installed on the top of the support plate. A flexible pad is fixedly installed on the top of the support frame. The support frame and the flexible pad... The flexible pad has an opening inside. A sliding rod is fixedly installed between the flexible pad and the first fixed plate. A base is slidably installed on the outer surface of the sliding rod. Annular blocks are fixedly installed around the top of the base and around the bottom of the first fixed plate. A lower mold is fixedly installed on the top of the first fixed plate. A through groove is opened around the inner side of the lower mold, corresponding to the annular block. A separating rod is fixedly installed on the top of the annular block and extends into the through groove. Transmission frames are fixedly installed on both sides of the upper mold. A transmission plate is fixedly installed between the bottom ends of the two transmission frames. A top rod is fixedly installed on the top of the transmission plate.

[0006] As a preferred embodiment of this utility model, a blowing assembly is fixedly installed on the top of the first fixed plate. The blowing assembly includes an air pump fixedly installed on the top of the first fixed plate. An air blowing connecting block is fixedly installed on the top of the first fixed plate. The two air blowing connecting blocks are interconnected through a first connecting pipe, and the two air blowing connecting blocks are located on one side of the lower mold. A connecting slot is fixedly installed on one side of the first connecting pipe, and the connecting slot faces the lower mold. The output end of the air pump is fixedly connected to a second connecting pipe, and the other end of the second connecting pipe is connected to the first connecting pipe and they are interconnected. An inclined sliding plate is fixedly installed on one side of the lower mold and is located on the side opposite to the connecting slot.

[0007] As a preferred embodiment of this utility model, the diameter of the flexible pad is larger than the diameter of the chassis, and the flexible pad is located below the chassis. A spring is fixedly connected between the two annular blocks, and the spring is movably sleeved on the outer surface of the separating rod.

[0008] As a preferred embodiment of this utility model, a first support rod is fixedly installed around the top of the support plate, a first fixing plate is fixedly installed on the top of the first support rod, a second support rod is fixedly installed around the top of the first fixing plate, and a second fixing plate is fixedly installed on the top of the second support rod.

[0009] As a preferred embodiment of this utility model, the inclined slide plate is inclined, and the top two sides of the inclined slide plate are provided with protruding strips.

[0010] As a preferred embodiment of this utility model, a protective cover is fixedly installed between the first fixing plate and the support plate, and the protective cover is located on the outside of the support plate and the first fixing plate.

[0011] As a preferred embodiment of this utility model, a base is fixedly installed at the bottom of the support plate, and the base is fixedly installed around the bottom of the support plate.

[0012] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0013] 1. This utility model uses an external controller to start the cylinder, which drives the upper mold component, enabling automated molding of plastic lunchbox raw materials in the lower mold and improving production efficiency. The upper mold drives the transmission frame, transmission plate, and push rod to move in synergy, forming a stable mechanical transmission chain. This ensures that the raw material is subjected to uniform force and has a regular shape when it is pressed and molded in the lower mold, reducing dimensional deviations or appearance defects caused by manual operation. After molding, the push rod passes through the opening and pushes the chassis, which drives the annular block and separation rod to accurately separate the molded lunchbox from the inner wall of the lower mold. This avoids the adhesion problem common in traditional processes, ensuring product integrity and reducing subsequent manual cleaning processes, thus improving production continuity. The sliding rod design effectively maintains the stability of the chassis during movement, preventing movement jamming or positional deviation caused by component shaking. This ensures that the entire set of equipment maintains reliable performance during high-frequency operation, reduces the risk of failure, and extends the service life of the equipment.

[0014] 2. This utility model utilizes a high-pressure air system triggered by activating an air pump when the separating component pushes the molded lunchbox above the top of the lower mold. This eliminates the need for manual contact with the lunchbox, automating the unloading process, significantly improving production efficiency, and reducing manual labor intensity. The high-pressure air is delivered to the first connecting pipe through the second connecting pipe and then evenly distributed to the two air-blowing connecting blocks. The airflow discharged through the connecting slot is stable and evenly distributed, ensuring consistent force on the lunchbox and preventing tipping or stagnation due to uneven airflow. This ensures a smooth unloading process. The high-pressure air propels the lunchbox down along the inclined slide plate, employing a non-contact transmission method. This avoids deformation or surface damage to the lunchbox that may be caused by traditional mechanical gripping, effectively protecting the product's appearance quality and structural integrity. Attached Figure Description

[0015] Figure 1 This is a frontal three-dimensional appearance structural diagram of the present utility model;

[0016] Figure 2 This is a schematic diagram of the support frame structure of this utility model;

[0017] Figure 3 This utility model Figure 2 Enlarged view of point A in the middle;

[0018] Figure 4This is a schematic diagram of the lower mold structure of this utility model;

[0019] Figure 5 This is a schematic diagram of the second fixing plate structure of this utility model;

[0020] Figure 6 This utility model Figure 5 Enlarged view at point B in the middle;

[0021] Figure 7 This is a schematic diagram of the tilting slide structure of this utility model.

[0022] In the diagram: 1. Support plate; 2. First support rod; 3. First fixing plate; 4. Second support rod; 5. Second fixing plate; 6. Separation assembly; 601. Cylinder cover; 602. Cylinder; 603. Upper mold; 604. Support frame; 605. Transmission frame; 606. Transmission plate; 607. Top rod; 608. Opening; 609. Flexible pad; 610. Slide rod; 611. Ring block; 612. Separation rod; 613. Spring; 614. Through slot; 615. Chassis; 7. Blowing assembly; 701. Air pump; 702. Air blowing connecting block; 703. First connecting pipe; 704. Connecting slot; 705. Second connecting pipe; 706. Inclined sliding plate; 8. Lower mold; 9. Protective cover; 10. Base. Detailed Implementation

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

[0024] like Figures 1 to 7As shown, this utility model provides a production and processing equipment for plastic lunch boxes, including a support plate 1, a first support rod 2, a first fixing plate 3, a second support rod 4, and a second fixing plate 5. A separation component 6 is fixedly installed on the top of the second fixing plate 5. The separation component 6 includes a cylinder cover 601 fixedly installed on the top of the second fixing plate 5. A cylinder 602 is fixedly installed inside the cylinder cover 601 and passes through the second fixing plate 5. An upper mold 603 is fixedly installed at the end of the output shaft of the cylinder 602. A support frame 604 is fixedly installed on the top of the support plate 1. A flexible pad 609 is fixedly installed on the top of the support frame 604. Openings 60 are provided inside the support frame 604 and the flexible pad 609. 8. A sliding rod 610 is fixedly installed between the flexible pad 609 and the first fixed plate 3. A base 615 is slidably installed on the outer surface of the sliding rod 610. Annular blocks 611 are fixedly installed around the top of the base 615 and around the bottom of the first fixed plate 3. A lower mold 8 is fixedly installed on the top of the first fixed plate 3. A through groove 614 is opened around the inner side of the lower mold 8, corresponding to the annular block 611. A separating rod 612 is fixedly installed on the top of the annular block 611 and extends into the inside of the through groove 614. A transmission frame 605 is fixedly installed on both sides of the upper mold 603. A transmission plate 606 is fixedly installed between the two ends of the bottom side of the two transmission frames 605. A top rod 607 is fixedly installed on the top of the transmission plate 606.

[0025] When the worker places the raw material for the plastic lunchbox into the lower mold 8, the external controller activates cylinder 602, which in turn drives the upper mold 603 to gradually shape the raw material placed inside the lower mold 8. Simultaneously, the upper mold 603 moves the transmission frame 605 downwards, which in turn moves the transmission plate 606 and the ejector rod 607 downwards. Once the upper mold 603 has finished shaping the raw material inside the lower mold 8, cylinder 602 will drive the upper mold 603 to gradually move upwards. The transmission frame 605, transmission plate 606 and push rod 607 move upward. When the push rod 607 moves upward, it will pass through the opening 608 and push the chassis 615 upward. When the chassis 615 is pushed, the chassis 615, together with the annular block 611 on the top of the chassis 615, will drive the separation rod 612 through the annular block 611 and the groove 614 on the bottom side of the first fixed plate 3 to separate the molded plastic lunch box from the lower mold 8, so as to avoid sticking to the inside of the lower mold 8. At the same time, the slide rod 610 maintains the stability of the chassis 615 when it moves.

[0026] By starting the cylinder 602 through an external controller, the upper mold 603 component can be driven to automatically form the plastic lunch box raw material in the lower mold 8, improving production efficiency. The upper mold 603 drives the transmission frame 605, transmission plate 606 and push rod 607 to move in a coordinated manner, forming a stable mechanical transmission chain. This ensures that the raw material is subjected to uniform force and has a regular shape when it is pressed and formed in the lower mold 8, reducing dimensional deviations or appearance defects caused by manual operation. After forming, the push rod 607 passes through the opening 608 to push the base 615, which drives the ring block 611 and the separation rod 612 to accurately separate the formed lunch box from the inner wall of the lower mold 8. This avoids the adhesion problem common in traditional processes, ensuring product integrity and reducing subsequent manual cleaning processes, thus improving production continuity. The design of the slide rod 610 effectively maintains the stability of the base 615 when it moves, avoiding movement jamming or positional deviation caused by component shaking. This ensures that the entire set of equipment maintains reliable performance during high-frequency operation, reduces the risk of failure, and extends the service life of the equipment.

[0027] The first fixed plate 3 is fixedly mounted with a blowing assembly 7, which includes an air pump 701 fixedly mounted on the top of the first fixed plate 3. The first fixed plate 3 is fixedly mounted with an air blowing connecting block 702. The two air blowing connecting blocks 702 are interconnected by a first connecting pipe 703 and are located on one side of the lower mold 8. A connecting slot 704 is fixedly mounted on one side of the first connecting pipe 703 and faces the lower mold 8. The output end of the air pump 701 is fixedly connected to a second connecting pipe 705 and the other end of the second connecting pipe 705 is connected to the first connecting pipe 703 and are interconnected. An inclined sliding plate 706 is fixedly mounted on one side of the lower mold 8 and is located on the side opposite to the connecting slot 704.

[0028] When the separating component 6 pushes out the molded plastic lunch box, making it higher than the top of the lower mold 8, the air pump 701 is activated. When the air pump 701 is activated, high-pressure air will be transmitted through the second connecting pipe 705 to the inside of the first connecting pipe 703. Then, the first connecting pipe 703 will evenly distribute the high-pressure gas into the two air blowing connecting blocks 702. Then, both air blowing connecting blocks 702 will exhaust air outward through the connecting slot 704. Then, the plastic lunch box will be blown down along the inclined sliding plate 706, making it convenient for staff to handle.

[0029] When the separating component 6 pushes the formed lunch box out above the top of the lower mold 8, the air pump 701 is activated to trigger the high-pressure air system. This eliminates the need for manual contact with the lunch box, automating the unloading process, significantly improving production efficiency, and reducing manual labor intensity. The high-pressure air is delivered to the first connecting pipe 703 through the second connecting pipe 705 and then evenly distributed to the two air-blowing connecting blocks 702. The airflow discharged through the connecting slot 704 is stable and evenly distributed, ensuring consistent force on the lunch box and preventing tipping or stagnation due to uneven airflow. This ensures a smooth unloading process. The high-pressure air pushes the lunch box down along the inclined slide plate 706, using a non-contact transmission method to avoid deformation or surface damage to the lunch box that may be caused by traditional mechanical gripping, effectively protecting the product's appearance quality and structural integrity.

[0030] The flexible pad 609 has a larger diameter than the chassis 615 and is located below the chassis 615. A spring 613 is fixedly connected between the two annular blocks 611 and is movably sleeved on the outer surface of the separating rod 612.

[0031] The flexible pad 609 has a diameter larger than that of the chassis 615, and is located below the chassis 615. When the chassis 615 drives the annular block 611 to compress, the spring 613 deforms. Then, as the push rod 607 gradually returns to its original position, the chassis 615 also gradually returns to its original position. The elasticity of the spring 613 will then help the chassis 615 return to its original position. At the same time, the flexible pad 609 can provide a certain buffering effect for the chassis 615.

[0032] Among them, a first support rod 2 is fixedly installed around the top of the support plate 1, a first fixing plate 3 is fixedly installed on the top of the first support rod 2, a second support rod 4 is fixedly installed around the top of the first fixing plate 3, and a second fixing plate 5 is fixedly installed on the top of the second support rod 4.

[0033] A first support rod 2 is fixedly installed around the top of the support plate 1. A first fixing plate 3 is fixedly installed on the top of the first support rod 2. A second support rod 4 is fixedly installed around the top of the first fixing plate 3. A second fixing plate 5 is fixedly installed on the top of the second support rod 4. This can effectively maintain the support and sturdiness of the entire support structure.

[0034] The inclined slide plate 706 is inclined, and the top two sides of the inclined slide plate 706 are provided with protruding strips.

[0035] The inclined slide plate 706 is tilted, and the top two sides of the inclined slide plate 706 are provided with protrusions, which can prevent the molded plastic lunch boxes from sliding out of the predetermined position along the inclined slide plate 706, making it easier for staff to collect, sort or package them, and reducing the risk of scattering.

[0036] A protective cover 9 is fixedly installed between the first fixing plate 3 and the support plate 1, and the protective cover 9 is located on the outside of the support plate 1 and the first fixing plate 3.

[0037] The protective cover 9 is located outside the support plate 1 and the first fixed plate 3, which can effectively provide physical protection for the core structure.

[0038] The support plate 1 has a base 10 fixedly installed at its bottom, and the base 10 is fixedly installed around the bottom of the support plate 1.

[0039] By fixing the base 10 to the bottom of the support plate 1 around the perimeter, the stability of the entire device can be effectively increased, and it can be prevented from being easily affected by external physical factors.

[0040] Working principle and usage process of this utility model:

[0041] When the worker places the raw material for the plastic lunchbox into the lower mold 8, the external controller activates cylinder 602, which in turn drives the upper mold 603 to gradually shape the raw material placed inside the lower mold 8. Simultaneously, the upper mold 603 moves the transmission frame 605 downwards, which in turn moves the transmission plate 606 and the ejector rod 607 downwards. Once the upper mold 603 has finished shaping the raw material inside the lower mold 8, cylinder 602 will drive the upper mold 603 to gradually move upwards. The transmission frame 605, transmission plate 606 and push rod 607 move upward. When the push rod 607 moves upward, it will pass through the opening 608 and push the chassis 615 upward. When the chassis 615 is pushed, the chassis 615, together with the annular block 611 on the top of the chassis 615, will drive the separation rod 612 through the annular block 611 and the groove 614 on the bottom side of the first fixed plate 3 to separate the molded plastic lunch box from the lower mold 8, so as to avoid sticking to the inside of the lower mold 8. At the same time, the slide rod 610 maintains the stability of the chassis 615 when it moves.

[0042] When the separating component 6 pushes out the molded plastic lunch box, making it higher than the top of the lower mold 8, the air pump 701 is activated. When the air pump 701 is activated, high-pressure air will be transmitted through the second connecting pipe 705 to the inside of the first connecting pipe 703. Then, the first connecting pipe 703 will evenly distribute the high-pressure gas into the two air blowing connecting blocks 702. Then, both air blowing connecting blocks 702 will exhaust air outward through the connecting slot 704. Then, the plastic lunch box will be blown down along the inclined sliding plate 706, making it convenient for staff to handle.

[0043] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0044] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A production and processing equipment for plastic lunch boxes, comprising a support plate (1), a first support rod (2), a first fixing plate (3), a second support rod (4), and a second fixing plate (5), characterized in that: A separation assembly (6) is fixedly installed on the top of the second fixed plate (5). The separation assembly (6) includes a cylinder cover (601) fixedly installed on the top of the second fixed plate (5). A cylinder (602) is fixedly installed inside the cylinder cover (601) and the cylinder (602) passes through the second fixed plate (5). An upper mold (603) is fixedly installed at the end of the output shaft of the cylinder (602). A support frame (604) is fixedly installed on the top of the support plate (1). A flexible pad (609) is fixedly installed on the top of the support frame (604). An opening (608) is provided inside the support frame (604) and the flexible pad (609). A slide rod (610) is fixedly installed between the flexible pad (609) and the first fixed plate (3). The slide rod (610) is slidably mounted on a base plate (615). Annular blocks (611) are fixedly mounted around the top of the base plate (615) and around the bottom of the first fixed plate (3). A lower mold (8) is fixedly mounted on the top of the first fixed plate (3). A through groove (614) is opened around the inner side of the lower mold (8) corresponding to the annular block (611). A separating rod (612) is fixedly mounted on the top of the annular block (611) and extends to the inside of the through groove (614). Transmission frames (605) are fixedly mounted on both sides of the upper mold (603). A transmission plate (606) is fixedly mounted between the two bottom ends of the two transmission frames (605). A top rod (607) is fixedly mounted on the top of the transmission plate (606).

2. The production and processing equipment for plastic lunch boxes according to claim 1, characterized in that: A blowing assembly (7) is fixedly installed on the top of the first fixed plate (3). The blowing assembly (7) includes an air pump (701) fixedly installed on the top of the first fixed plate (3). An air blowing connecting block (702) is fixedly installed on the top of the first fixed plate (3). The two air blowing connecting blocks (702) are connected to each other through a first connecting pipe (703). The two air blowing connecting blocks (702) are located on one side of the lower mold (8). A connecting slot (704) is fixedly installed on one side of the first connecting pipe (703). The connecting slot (704) faces the lower mold (8). The output end of the air pump (701) is fixedly connected to a second connecting pipe (705). The other end of the second connecting pipe (705) is connected to the first connecting pipe (703) and they are connected to each other. An inclined sliding plate (706) is fixedly installed on one side of the lower mold (8) and is located on the side opposite to the connecting slot (704).

3. The production and processing equipment for plastic lunch boxes according to claim 1, characterized in that: The diameter of the flexible pad (609) is larger than the diameter of the chassis (615), and the flexible pad (609) is located below the chassis (615). A spring (613) is fixedly connected between the two annular blocks (611), and the spring (613) is movably sleeved on the outer surface of the separating rod (612).

4. The production and processing equipment for plastic lunch boxes according to claim 1, characterized in that: The support plate (1) is fixedly installed with a first support rod (2) around its top perimeter, and a first fixing plate (3) is fixedly installed on the top of the first support rod (2). The first fixing plate (3) is fixedly installed with a second support rod (4) around its top perimeter, and a second fixing plate (5) is fixedly installed on the top of the second support rod (4).

5. The production and processing equipment for plastic lunch boxes according to claim 2, characterized in that: The tilting slide (706) is tilted, and the top two sides of the tilting slide (706) are provided with protrusions.

6. The production and processing equipment for plastic lunch boxes according to claim 1, characterized in that: A protective cover (9) is fixedly installed between the first fixing plate (3) and the support plate (1), and the protective cover (9) is located on the outside of the support plate (1) and the first fixing plate (3).

7. The production and processing equipment for plastic lunch boxes according to claim 1, characterized in that: The bottom of the support plate (1) is fixedly installed with a base (10), and the base (10) is fixedly installed around the bottom of the support plate (1).

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