Forming equipment and forming method for cross-shaped four-grid three-dimensional box

Abstract

The invention discloses forming equipment and a forming method for a cross-shaped four-grid three-dimensional box, and the forming equipment comprises a rack, a feeding mechanism, a forming mechanism, a conveying mechanism and a discharging mechanism, the front pressing mechanism comprises a first lower pressing die moving in the vertical direction, a first side pressing die, a second side pressing die, a third side pressing die, a first edge folding die, a second edge folding die and a third edge folding die, wherein the first side pressing die and the second side pressing die move in the horizontal direction, the third side pressing die moves in the horizontal direction and is opposite to the second side pressing die, the first edge folding die and the second edge folding die move in the vertical direction and are perpendicularly arranged, and the third edge folding die moves in the inclined side direction. The first lower pressing die and the third side pressing die are used for forming of the second area and the first area, the first side pressing die and the second side pressing die are used for forming of the third area and the fourth area, and the first edge folding die, the second edge folding die and the third edge folding die are used for forming of the cross-shaped partition plate. And the rear pressing mechanism comprises a four-grid mold moving vertically and a mold frame located below the four-grid mold. Full-automatic forming of the cross-shaped four-grid three-dimensional box can be achieved.

Description

Technical Field

[0001] This invention relates to the field of box manufacturing, specifically to a molding equipment and method for a cross-shaped four-compartment three-dimensional box. Background Technology

[0002] With the significant increase in product packaging usage, especially the rapid rise in the number of food packaging boxes, traditional manual methods require substantial manpower and time, placing a considerable burden on businesses. To free paper boxes from traditional manual labor, food paper box forming machines have emerged on the market. Currently, paper boxes are mostly one-, two-, or three-compartment boxes, and their forming technology is gradually maturing.

[0003] However, as people's living standards continue to improve and the pace of life becomes increasingly fast, most people don't have time to cook, and more and more people are choosing to order takeout. Because takeout products are diverse, the demand for takeout boxes is also diverse. For example, some fried food takeouts require four-compartment boxes, but currently there is no equipment on the market to form cross-shaped four-compartment 3D boxes. Before leaving the factory, these boxes are still cardboard and need to be manually folded and shaped to form the final product. This folding process is very time-consuming and labor-intensive, affecting the efficiency of the box production process. Therefore, there is an urgent need for a cross-shaped four-compartment 3D box forming machine to accelerate production efficiency. Summary of the Invention

[0004] The purpose of this invention is to provide a molding device for a cross-shaped four-compartment solid box, which can realize the fully automatic molding of the cross-shaped four-compartment solid box.

[0005] In one aspect of the invention, a molding device for a cross-shaped four-compartment solid-state box is provided. According to an embodiment of the invention, it includes a frame, a feeding mechanism, a molding mechanism, a conveying mechanism, and a discharging mechanism. The cross-shaped four-compartment solid-state box is divided into four adjacent sections (section 1, section 2, section 3, and section 4) in a clockwise direction by cross-shaped partitions. The molding mechanism includes:

[0006] The front pressing mechanism includes a vertically moving lower pressing die one, a horizontally moving side pressing die one and a side pressing die two, a horizontally moving side pressing die three opposite to the side pressing die two, a vertically moving edge folding die one and an edge folding die two, and an edge folding die three moving in the oblique direction. The lower pressing die one and the side pressing die three are used for forming area two and area one, the side pressing die one and the side pressing die two are used for forming area three and area four, and the edge folding die one, edge folding die two, and edge folding die three are used for forming the cross-shaped partition.

[0007] The rear pressing mechanism includes a vertically movable four-compartment mold and a mold frame located below the four-compartment mold.

[0008] In addition, the molding equipment for a cross-shaped four-compartment solid box according to the above embodiments of the present invention may also have the following additional technical features:

[0009] In some embodiments of the present invention, the first pressing mold, the first side pressing mold, the second side pressing mold, the third side pressing mold, the first folding mold, the second folding mold, the third folding mold, and the fourth folding mold are respectively driven to move by a driving mechanism.

[0010] In some embodiments of the present invention, the front pressing mechanism further includes a pressing die in the vertical direction.

[0011] In some embodiments of the present invention, a support mechanism is also included, the support mechanism comprising a lower pressing mold two movable in the vertical direction and a support rod disposed below the lower pressing mold two.

[0012] In some embodiments of the present invention, a plurality of positioning pressure rods are provided on the outer periphery of the lower pressure mold, and the positioning pressure rods can move in the vertical direction.

[0013] In some embodiments of the present invention, the support rod is fixed on a turntable, the turntable is driven to rotate by a motor, and the motor is fixed on a vertically moving lifting plate.

[0014] In some embodiments of the present invention, the lower pressing mold is composed of four pressing modules, and the gap between the four pressing molds is a cross-shaped wide slit.

[0015] In some embodiments of the invention, the strut can extend into the gap between the four molds and rotate.

[0016] In another aspect, the present invention provides a method for molding a cross-shaped four-compartment solid-state box. According to an embodiment of the present invention, the cross-shaped four-compartment solid-state box is processed using the molding equipment described above, and the method includes the following steps:

[0017] (1) The cardboard is fed by the feeding mechanism and then conveyed to the front pressing mechanism by the conveying mechanism;

[0018] (2) First, press the lower pressure mold one onto the second area of ​​the cardboard, press the side pressure mold three onto the first area of ​​the cardboard, and then move the folding mold one upward to fold the inner edges of the first and second areas of the cardboard upward; then push the side pressure mold one and the side pressure mold two horizontally toward the cardboard to form one folded edge of the cross-shaped partition, and press the side pressure mold one and the side pressure mold two onto the third and fourth areas of the cardboard; reset the lower pressure mold one and the side pressure mold two, move the folding mold two upward to make the cardboard near the folding mold three curl up, and press the folding mold three diagonally downward and squeeze the cardboard to form the other folded edge of the cross-shaped partition;

[0019] (3) The cardboard from step (2) is transferred to the back pressing mechanism using the transmission mechanism. The cardboard is pressed into the mold frame by the four-compartment mold, and the cross-shaped four-compartment three-dimensional box is fully formed. Finally, the material is discharged through the discharge mechanism.

[0020] Compared with the prior art, the beneficial effects of the present invention are:

[0021] 1) The present invention sets up a lower pressing mold 1, a lower pressing mold 2, a side pressing mold 1, and a side pressing mold 2, which cooperate with the folding mold 1 and the folding mold 2 to form the four areas and the cross-shaped partition of the cross-shaped four-compartment three-dimensional box.

[0022] 2) By setting up a support mechanism, the gap below the cross-shaped partition is widened, making it easier for the cardboard to fit into the subsequent four-compartment mold and mold frame. Attached Figure Description

[0023] Figure 1 This is a schematic diagram of the structure of a molding device for a cross-shaped four-compartment solid box according to an embodiment of the present invention;

[0024] Figure 2 This is a partial structural schematic diagram of a molding device for a cross-shaped four-compartment solid box according to an embodiment of the present invention;

[0025] Figure 3 yes Figure 2 Enlarged view of point A in the middle;

[0026] Figure 4 This is a schematic diagram of the front pressing mechanism in an embodiment of the present invention;

[0027] Figure 5 This is a schematic diagram of the upper part of the front pressing mechanism in an embodiment of the present invention;

[0028] Figure 6 This is a schematic diagram of the lower part of the front pressing mechanism in an embodiment of the present invention;

[0029] Figure 7 This is a partial structural schematic diagram of the front pressing mechanism in an embodiment of the present invention;

[0030] Figure 8 This is a schematic diagram of the lower part of the support mechanism in an embodiment of the present invention;

[0031] Figure 9 This is a schematic diagram of the upper part of the support mechanism in an embodiment of the present invention;

[0032] Figure 10 This is a schematic diagram of the upper part of the rear pressing mechanism in an embodiment of the present invention;

[0033] Figure 11 This is a schematic diagram of the lower part of the rear pressure mechanism in an embodiment of the present invention;

[0034] Figure 12 This is a schematic diagram of the upper part of the discharge mechanism in an embodiment of the present invention;

[0035] Figure 13 This is a schematic diagram of the feeding mechanism in an embodiment of the present invention;

[0036] Figure 14 This is a schematic diagram of the initial cardboard structure in an embodiment of the present invention;

[0037] Figure 15 This is a state diagram of the cardboard during the front pressing mechanism in an embodiment of the present invention;

[0038] Figure 16 This is a schematic diagram of the cardboard after the pre-pressing mechanism process is completed in an embodiment of the present invention;

[0039] In the diagram, 1. Frame, 2. Feeding mechanism, 3. Conveying mechanism, 4. Discharging mechanism, 401. Demolding mold, 402. Material support plate, 403. Conveyor, 5. Front pressing mechanism, 501. Lower pressing mold one, 502. Side pressing mold one, 503. Side pressing mold two, 504. Side pressing mold three, 505. Folding mold one, 506. Folding mold two, 507. Folding mold three, 508. Positioning rod, 509. Processing plate, 510. Fixing block, 511. Support rod, 6. Spreading support mechanism, 601. Lower pressing mold two, 602. Spreading support rod, 6021. Vertical rod, 6022. Spreading support head, 603. Positioning pressure rod, 604. Turntable, 60 5. Lifting plate; 7. Rear pressing mechanism; 701. Four-compartment mold; 702. Mold frame; 703. Forming plate; 8. Cardboard; 801. Cardboard body; 8011. Zone 1; 8012. Box lid area; 8013. Folding area 1; 8014. Folding area 2; 8015. Outer circumference folding area; 8016. Crease; 8017. Zone 2; 8018. Zone 3; 8019. Zone 4; 802. Positioning hole; 8021. Center positioning hole; 8022. Corner positioning hole; 803. Cross-shaped partition; 9. Gear and rack transmission mechanism; 901. Motor; 902. Gear; 903. Rack; 10. Drive mechanism. Detailed Implementation

[0040] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of the present invention.

[0041] Example 1

[0042] like Figure 1As shown, a molding device for a cross-shaped four-compartment solid box includes a frame 1 and a feeding mechanism 2, a molding mechanism, a conveying mechanism 3, and a discharging mechanism 4 disposed on the frame 1.

[0043] The earliest form of the cross-shaped four-compartment 3D box, cardboard, as shown in Figure 8. Figure 14 As shown, it consists of a cardboard body 801 and positioning holes 802. The cardboard body 801 includes a partition area, a lid area 8012, a first folded edge area 8013, a second folded edge area 8014, and an outer perimeter folded edge area 8015. The positioning holes 802 include a center positioning hole 8021 and a corner positioning hole 8022. Creases 8016 are pre-drilled on the cardboard body 801. Figure 1 The dotted lines in the diagram represent pre-reserved creases 8016, facilitating subsequent folding of the cardboard box. After folding, folded edge area one 8013 and folded edge area two 8014 form a cross-shaped divider 803. This cross-shaped divider 803 divides the area into four adjacent sections in a clockwise direction: section one 8011, section two 8017, section three 8018, and section four 8019. Figure 16 As shown.

[0044] The feeding mechanism 2, conveying mechanism 3, and discharging mechanism 4 all adopt the mechanisms of a single-compartment cardboard box or other cardboard box forming machine. The feeding mechanism 2 is used to limit the cardboard 8. Those skilled in the art can make adaptive modifications based on different shapes of cardboard 8, such as adding a positioning rod 508 as needed. The specific structure is as follows: Figure 13 As shown. The conveying mechanism 3 consists of a placement plate, a conveyor belt symmetrically arranged above the placement plate, and a suction mechanism driven by the conveyor belt. It is also the structure of existing equipment, used to connect the feeding mechanism 2, the forming mechanism, and the discharging mechanism 4, ensuring unobstructed conveying of the cardboard 8. The discharging mechanism 4 includes a vertically movable demolding mold 401, a material support plate 402, and a conveyor 403, as shown. Figure 12 As shown, the demolding mold 401 is a four-compartment shape, and the demolding mold 401 is driven by the gear and rack transmission mechanism 9 to move vertically; as Figure 3 As shown, four material support plates 402 are provided, respectively positioned in four directions. The material support plates 402 are moved by a drive mechanism 10, which can be a pneumatic cylinder or a hydraulic cylinder. The drive mechanism can also be used with guide rods. The material support plates 402 are positioned between the demolding mold 401 and the conveyor 403. Specifically, as... Figure 12As shown, the gear and rack transmission mechanism 9 includes a motor 901, a gear 902, and a rack 903. The output shaft of the motor 901 is fixed to the gear 902, and the gear 902 meshes with the rack 903. The lower end of the rack 903 is fixed to the demolding mold 401. The motor 901 drives the gear 902 to rotate, the gear 902 drives the rack 903 to move, and the rack 903 drives the demolding mold 401 to move vertically. The demolding mold 401 pushes the formed box body down between the four support plates 402, and then through the support plates 402 to the conveyor 403 to complete the unloading. The above modifications are all modifications that can be made by those skilled in the art according to the different shapes of the cardboard boxes. Therefore, its specific structure will not be described in detail in this embodiment.

[0045] like Figure 2 As shown, the forming mechanism includes a front pressing mechanism 5, a spreading mechanism 6, and a rear pressing mechanism 7. The front pressing mechanism 5, the spreading mechanism 6, and the rear pressing mechanism 7 are sequentially arranged between the feeding mechanism 2 and the discharging mechanism 4, and the transmission mechanism 3 connects each mechanism. The placement plate of the transmission mechanism 3 is provided with machining holes that mate with the front pressing mechanism 5, the spreading mechanism 6, the rear pressing mechanism 7, and the discharging mechanism 4.

[0046] like Figure 4 As shown, the front pressing mechanism 5 includes a vertically moving lower pressing die 501, two horizontally moving side pressing dies 502 and 503, a horizontally moving side pressing die 504 opposite to the second side pressing die 503, two vertically moving folding dies 505 and 506, and a folding die 507 moving obliquely. The lower pressing die 501 and the third side pressing die 504 are used for forming zones 8017 (second zone) and 8011 (first zone); the side pressing dies 502 and 503 are used for forming zones 8018 (third zone) and 8019 (fourth zone); and the folding dies 505, 506, and 507 are used for forming the cross-shaped partition 803. Each die has a folding plate and a folding groove on its outer wall to facilitate the folding of the cardboard 8. This is common knowledge to those skilled in the art and will not be described further. The lower pressing mold 1 501, the side pressing mold 1 502, the side pressing mold 2 503, the side pressing mold 3 504, the folding mold 1 505, the folding mold 2 506, the folding mold 3 507, and the four-compartment mold 701 are moved by the driving mechanism 10, which is a pneumatic cylinder or a hydraulic cylinder.

[0047] Specifically, such as Figure 5As shown, the front pressing mechanism 5 also includes a processing plate 509, multiple positioning rods 508 for positioning, and a vertically movable fixing block 510. The positioning rods 508 are driven by the drive mechanism 10 to move vertically, and are used to position and fix the cardboard 8. The fixing block 510 is disposed on both sides of the positioning rods 508, and is also driven by the drive mechanism 10. The fixing block 510 is used to fix the cardboard 8. The processing plate 509 is disposed on both sides of the folding die 505 to support the cardboard 8. Figure 7 As shown, both the first folding die 505 and the second folding die 506 have a flattened triangular pyramidal shape at the top. There are two first folding dies 505, and two support rods 511 are arranged between the two first folding dies 505, which are driven to rotate by a gear and rack transmission mechanism 9. The support rods 511 are used to open the folded corner at the center positioning hole 8021 of the cardboard 8. Figure 6 As shown, there are also two folding molds 507, which are driven by two sets of drive mechanisms 10 respectively.

[0048] The expansion mechanism 6 includes a lower pressing die 601 that can move vertically and an expansion rod 602 disposed below the lower pressing die 601. Figure 9 As shown, the second pressing die 601 consists of four pressing modules, with a cross-shaped wide gap between them. Multiple positioning rods 603 are arranged on the outer periphery of the second pressing die 601. These positioning rods 603 can move vertically, and both the second pressing die 601 and the positioning rods 603 are driven by the drive mechanism 10. Figure 8 As shown, four support rods 602 are provided. Each support rod 602 consists of a vertical rod 6021 and a support head 6022. The support head 6022 can extend into the gap between the four pressing molds and rotate. Two support heads 6022 are inserted into the horizontal gap and two into the vertical gap, respectively. The bottom of the vertical rod 6021 is fixed to the turntable 604, which is driven to rotate by a motor. The motor is fixed to the vertically moving lifting plate 605. The lifting plate 605 is driven to move by the drive mechanism 10. The lower pressing mold 601 moves downward to press the cardboard, so that the cross-shaped partition 803 is located in the cross-shaped gap of the lower pressing mold 601. Then, driven by the drive mechanism 10, the lifting plate 605 drives the support head 6022 to extend into the gap below the cross-shaped partition 803 of the cardboard. Then, the motor drives the support head 6022 to rotate, opening the crease reserved in the cardboard.

[0049] The rear pressing mechanism 7 includes a vertically moving four-compartment mold 701 and a mold frame 702 located below the four-compartment mold 701, such as... Figure 10 As shown, the four-compartment mold 701 is moved by the drive mechanism 10. The four-compartment mold 701 is equipped with a folding plate and a folding groove to facilitate the folding and forming of the cardboard 8. The shape and size of the folding plate and folding groove can be set as needed. Figure 11As shown, the mold frame 702 is fixed, and the mold frame 702 is provided with a forming plate 703 that can move vertically. The forming plate 703 is driven to move by the gear and rack transmission mechanism 9. A cross-shaped plate is fixed at the upper end of the forming plate 703, which is adapted to the forming cardboard.

[0050] Example 2

[0051] A method for molding a cross-shaped four-compartment solid box, using the molding equipment of Example 1, specifically includes the following steps:

[0052] (1) The cardboard 8 is fed by the feeding mechanism 2 and then conveyed to the front pressing mechanism 5 by the conveying mechanism 3;

[0053] (2) First, move the lower pressing mold 501 downwards and press it onto the second area 8017 of the cardboard 8. Then, extend the side pressing mold 504 towards the cardboard 8 and press it onto the first area 8011 of the cardboard 8. Then, move the two folding molds 505 upwards and fold the edges of the first area 8011 and the second area 8017 of the cardboard 8 upwards. Extend the positioning rod 508 downwards to position the cardboard 8 and press it down. Then, push the side pressing molds 502 and 503 horizontally toward the cardboard 8 so that one fold of the cross-shaped partition 803 is formed, and the side pressing molds 502 and 503 press onto the third area 8018 and the fourth area 8019 of the cardboard 8. Move the support rod 511 upwards into the center positioning hole 8021 of the cardboard 8, rotate the support rod 511, and use the support rod 511 to open the reserved crease 8016 in the center positioning hole 8021.

[0054] (3) Reset the lower pressing mold 501, the side pressing mold 503, the folding mold 505, and the support rod 511. Move the folding mold 506 upward so that the cardboard 8 near the folding mold 507 is lifted. At this time, the state of the cardboard 8 is as follows: Figure 15 As shown, the folding die 507 is pressed downwards and diagonally to squeeze the cardboard 8, forming the other folded edge of the cross-shaped partition 803. The fixing block 510 moves downwards to press other positions of the cardboard 8. After the cross-shaped partition 803 of the cardboard 8 is fully formed, all mechanisms of the forming mechanism are reset. The state of the cardboard after the cross-shaped partition 803 is formed is as follows. Figure 16 As shown.

[0055] (4) Use the transmission mechanism 3 to transfer the cardboard 8 from step (3) to the forming mechanism 6. Move the lower pressing mold 601 downward to press the cardboard 8 formed by the cross-shaped partition 803. Move the forming head 6022 upward so that the forming head 6022 extends into the gap at the bottom of the cross-shaped partition 803. Rotate the forming head 6022 so that the forming head 6022 forms the crease 8016 reserved in the cardboard 8 in place, which is convenient for subsequent forming.

[0056] (5) The expansion mechanism 6 is reset, and the cardboard 8 is transferred to the back pressing mechanism 7 by the transmission mechanism 3. The four-compartment mold 701 moves downward and the forming plate 703 also moves downward. The four-compartment mold 701 presses the cardboard 8 into the mold frame 702. The folded cardboard box is welded by the ultrasonic welding mechanism, or the cardboard box is formed by the heating forming mechanism. The ultrasonic welding structure or heating forming mechanism here are existing technologies, so they will not be described in detail.

[0057] (6) The formed paper box is moved to the discharge mechanism 4 by the transmission mechanism 3. The demolding mold 401 moves downward so that the paper box enters between the four material support plates 402. The material support plates 402 move to release the paper box and the paper box enters the conveyor 403 to complete the discharge.

[0058] The above description is merely an example and illustration of the structure of the present invention. Those skilled in the art can make various modifications or additions to the specific embodiments described, or use similar methods to replace them, as long as they do not deviate from the structure of the present invention or exceed the scope defined in the claims, all of which should fall within the protection scope of the present invention.

Claims

1. A molding device for a cross-shaped four-compartment solid box, comprising a frame, a feeding mechanism, a molding mechanism, a conveying mechanism, and a discharging mechanism, wherein the cross-shaped four-compartment solid box is divided into four adjacent sections in a clockwise direction by cross-shaped partitions, characterized in that... The molding mechanism includes: The front pressing mechanism includes a vertically moving lower pressing die one, a horizontally moving side pressing die one and a side pressing die two, a horizontally moving side pressing die three opposite to the side pressing die two, a vertically moving folding die one and a folding die two, and a folding die three moving in an oblique direction. The lower pressing die one and the side pressing die three are used for forming area two and area one, the side pressing die one and the side pressing die two are used for forming area three and area four, and the folding die one, folding die two, and folding die three are used for forming a cross-shaped partition. The rear pressing mechanism includes a vertically movable four-compartment mold and a mold frame located below the four-compartment mold.

2. The molding equipment for a cross-shaped four-compartment solid box according to claim 1, characterized in that: The first pressing mold, the first side pressing mold, the second side pressing mold, the third side pressing mold, the first folding mold, the second folding mold, the third folding mold, and the fourth folding mold are all driven to move by a drive mechanism.

3. The molding equipment for a cross-shaped four-compartment solid box according to claim 1, characterized in that: The front pressing mechanism also includes a pressing die in the vertical direction.

4. The molding equipment for a cross-shaped four-compartment solid box according to claim 1, characterized in that: It also includes a support mechanism, which includes a lower pressing mold that can move in the vertical direction and a support rod disposed below the lower pressing mold.

5. A molding device for a cross-shaped four-compartment solid box according to claim 4, characterized in that: The lower die has multiple positioning rods on its outer periphery, and these positioning rods can move in the vertical direction.

6. A molding device for a cross-shaped four-compartment solid box according to claim 4, characterized in that: The support rod is fixed on the turntable, which is driven to rotate by a motor. The motor is fixed on a vertically moving lifting plate.

7. A molding device for a cross-shaped four-compartment solid box according to claim 4, characterized in that: The second pressing mold consists of four pressing modules, and the gap between the four pressing molds is a cross-shaped wide slit.

8. A molding device for a cross-shaped four-compartment solid box according to claim 7, characterized in that: The strut can extend into the gap between the four molds and rotate.

9. A method for molding a cross-shaped four-compartment three-dimensional box, characterized in that, Processing a cross-shaped four-compartment solid box using the molding equipment described in any one of claims 1-8 includes the following steps: (1) The cardboard is fed by the feeding mechanism and then conveyed to the front pressing mechanism by the conveying mechanism; (2) First, press the lower pressure mold one onto the second area of ​​the cardboard, press the side pressure mold three onto the first area of ​​the cardboard, and then move the folding mold one upward to fold the edges of the first and second areas of the cardboard up. Then, push the side pressure mold one and the side pressure mold two horizontally toward the cardboard to form one folded edge of the cross-shaped partition. Press the side pressure mold one and the side pressure mold two onto the third and fourth areas of the cardboard. Reset the lower pressure mold one and the side pressure mold two, move the folding mold two upward to make the cardboard near the folding mold three curl up, and press the folding mold three downward and diagonally to squeeze the cardboard to form the other folded edge of the cross-shaped partition. (3) The cardboard from step (2) is transferred to the back pressing mechanism using the transmission mechanism. The cardboard is pressed into the mold frame by the four-compartment mold, and the cross-shaped four-compartment three-dimensional box is fully formed. Finally, the material is discharged through the discharge mechanism.

Images