Paper bowl forming machine and octagonal paper bowl production method

Abstract

The invention relates to the technical field of paper bowl production equipment, and discloses a paper bowl forming machine and an octagonal paper bowl production method.The paper bowl forming machine comprises a paper bowl forming machine body, a through groove formed in the top face of the paper bowl forming machine body, a conveying rail installed over the through groove and a paperboard frame installed over the conveying rail; an assembling frame is arranged above the paperboard frame, a top feeding assembly is installed on the assembling frame, a plurality of bearing pieces are arranged on the outer edge of the paperboard frame, and a bottom feeding assembly is arranged in the through groove. A plurality of bearing pieces are arranged on the edge of the paperboard frame, part of paperboards in the paperboard frame are supported through the bearing pieces, the paperboards at the bottom of the paperboard frame can be effectively prevented from being bent and deformed, and the processing quality of paper bowls is guaranteed; compared with a bottom feeding mode, the paperboard feeding device is more reasonable, and the conditions that the paperboards deform or are damaged or feeding is difficult are avoided.

Description

Technical Field

[0001] The present invention relates to the technical field of paper bowl production equipment, and particularly to a paper bowl forming machine and a production method for octagonal paper bowls. Background Art

[0002] The paper bowl forming machine mainly consists of a feeding system, a pushing system, a guiding track, a pressing system, and a discharging system. The feeding system includes a cardboard rack and movable suction cups located at the bottom of the cardboard rack. The cardboard is stacked in the cardboard rack, and the suction cups adsorb the bottommost cardboard and pull it downward, causing the cardboard to fall onto the guiding track. However, such a feeding system still has certain defects: since the cardboard rack only supports the edges of the cardboard, when the suction cups adsorb and pull the cardboard downward, the edges of the cardboard will inevitably be squeezed and deformed. Cardboard with better toughness will recover after deformation, but for cardboard with poor toughness during processing, irreversible deformation or damage will occur to the cardboard, resulting in a reduction in the processing quality of the paper bowl. In addition, since the bottom of the cardboard corresponds to the outer wall of the paper bowl, some bottoms of the cardboard will be pre-beautified, resulting in an uneven surface and making it difficult for the suction cups to adsorb. Neither of the above two situations is suitable for using such a feeding system for feeding; moreover, when there are a large number of cardboard stacked on the cardboard rack, the bottommost cardboard bears a large pressure and is also easily bent and deformed. Summary of the Invention

[0003] Aiming at the deficiencies of the prior art, the present invention provides a paper bowl forming machine and a production method for octagonal paper bowls, which have the advantages of strong applicability, preventing cardboard deformation and thus ensuring the quality of paper bowls, and solve the problems that the feeding system of the existing paper bowl machine cannot meet the feeding requirements of cardboard with poor toughness and cardboard with uneven bottoms, and the cardboard is easily pressed and deformed when there are many cardboard stacked on the cardboard rack.

[0004] To solve the above technical problems, the present invention provides the following technical solutions: A paper bowl forming machine and a production method for octagonal paper bowls, including a paper bowl forming machine main body, a through groove provided on the top surface of the paper bowl forming machine main body, a conveying track installed directly above the through groove, and a cardboard rack installed directly above the conveying track. An assembly rack is provided above the cardboard rack, and a top feeding component is installed on the assembly rack. A plurality of supporting pieces are provided on the outer edge of the cardboard rack, and a bottom feeding component is provided in the through groove;

[0005] The supporting pieces are installed at the bottom of the assembly rack through rotating shafts, and the supporting pieces are used to support the cardboard;

[0006] The top feeding component includes an upper suction cup that can move vertically and horizontally, and the top feeding component is used to adsorb the top of the cardboard and drive the supporting pieces to move;

[0007] The bottom loading component includes a plurality of lower suction cups capable of vertical movement and a supporting plate, and the bottom loading component is used for adsorbing the bottom of the cardboard and driving the cardboard to move upward;

[0008] During processing, the stacked paper cups in the cardboard rack are supported by the supporting pieces. For ordinary cardboard, the bottom loading component operates, forcing the lower suction cups to adsorb the bottom surface of the cardboard and move downward to achieve loading; for special cardboard, the top loading component operates, first driving the supporting piece to move away from the cardboard rack, and also enabling the upper suction cups to adsorb the top of the cardboard and then transfer it to the conveying track. At the same time, the bottom loading component operates, forcing the supporting plate to extend to the bottom of the cardboard and then move upward, thereby driving the cardboard to move upward to achieve loading.

[0009] Preferably, the bottom loading component further includes a lower movable frame located in the through groove and a first cylinder fixed on the top surface of the main body of the paper bowl forming machine. The output end of the first cylinder is vertically downward and fixedly connected to the lower movable frame. A plurality of vertical air pipes are fixed on the lower movable frame. The lower suction cups are provided in plurality and are respectively fixed at the tops of the respective vertical air pipes. The supporting plate is installed on the vertical air pipes.

[0010] Preferably, the rotating shaft is located at the edge of the cardboard rack. One end of the supporting piece is fixed with a collar, and the collar is sleeved on the rotating shaft and fixed on the rotating shaft by bolts. The top end of the rotating shaft is rotatably connected to the assembly frame, and a driving gear is fixed near the top end of the rotating shaft.

[0011] Preferably, the assembly frame includes a horizontally arranged base plate, and the base plate is fixed on the main body of the paper bowl forming machine through a support rod. A strip-shaped hole is formed on the surface of the base plate, and the strip-shaped hole is parallel to the conveying track.

[0012] Preferably, the top loading component includes a transverse slide table fixed on the top of the assembly frame. The transverse slide table is parallel to the conveying track. A slider is installed on the transverse slide table, and a second cylinder is fixedly connected to the slider. The output end of the second cylinder is vertically downward and is fixed with an upper movable frame. The upper movable frame is located directly above the cardboard rack. The upper suction cups are provided in plurality and are all fixed on the upper movable frame.

[0013] Preferably, the top loading component further includes a conical block fixed on the top of the upper movable frame and a plurality of driving racks distributed around the conical block. The driving racks are engaged with the driving gear. One end of the driving rack close to the conical block is provided with an inclined surface. A slide rail is provided at the top of the driving rack, and the slide rail is fixed at the bottom of the assembly frame. The driving rack is slidably connected to the slide rail. One end of the driving rack far from the conical block is fixedly connected with a spring, and one end of the spring is fixedly connected to the end of the slide rail.

[0014] Preferably, sleeves are movably sleeved on the plurality of vertical air pipes. One side of each sleeve is fixedly connected with an upper inclined rod. The supporting plate is fixed at the top end of the upper inclined rod. A connecting seat is rotatably connected to the outside of the sleeve. A third air cylinder is fixed on the lower movable frame. The output end of the third air cylinder is vertically upward and fixedly connected with the connecting seat.

[0015] Preferably, a guiding groove is formed on the surface of the vertical air pipe. A round pin is fixedly connected to one side of the upper inclined rod. The round pin extends into the guiding groove.

[0016] Preferably, the guiding groove includes a vertical groove at the bottom and a spiral groove at the top. The bottom end of the spiral groove communicates with the top end of the vertical groove.

[0017] The present invention also discloses a production method of an octagonal paper bowl. The production method of the octagonal paper bowl uses the above-mentioned paper bowl forming machine.

[0018] Compared with the prior art, the present invention provides a paper bowl forming machine and a production method of an octagonal paper bowl, having the following beneficial effects:

[0019] 1. For the paper bowl forming machine and the production method of the octagonal paper bowl, by arranging a plurality of supporting pieces at the edge of the cardboard rack and using the supporting pieces to support part of the cardboard in the cardboard rack, it can effectively prevent the cardboard at the bottom of the cardboard rack from being bent and deformed, ensuring the processing quality of the paper bowl. In addition, when processing special cardboard, by setting the top feeding assembly, using the upper suction cup to adsorb the top surface of the cardboard and then placing it on the conveying track, it is more reasonable than the bottom feeding method, avoiding situations such as cardboard deformation, damage or difficult feeding.

[0020] 2. For the paper bowl forming machine and the production method of the octagonal paper bowl, by setting the top feeding assembly, the top feeding assembly drives the upper suction cup to move vertically and horizontally, which is beneficial to adsorb the cardboard from the top and place it on the conveying track, and thus is applicable to the feeding work of special cardboard. And when processing ordinary cardboard, the top feeding assembly can also drive the supporting piece to move, so that the cardboard above the supporting piece drops below the supporting plate, facilitating the replenishment of the cardboard in the cardboard rack.

[0021] 3. For the paper bowl forming machine and the production method of the octagonal paper bowl, by arranging a movable supporting plate on the movable frame, the third air cylinder is used to drive the supporting plate to move below the cardboard in advance, and then the first air cylinder is used to drive the supporting plate to move upward, thereby pushing the cardboard in the cardboard rack to move upward gradually. A plurality of supporting plates support the bottom of the cardboard, with a large supporting area, avoiding cardboard deformation, and can also gradually push the cardboard when the cardboard is consumed, ensuring that the height of the top of the cardboard is always the same, making the feeding path always maintain the shortest distance, so as to improve the feeding efficiency. Description of the Drawings

[0022] Figure 1Schematic three-dimensional structure of a paper bowl forming machine of the present invention Figure 1 ;

[0023] Figure 2 Schematic three-dimensional structure of a paper bowl forming machine of the present invention Figure 2 ;

[0024] Figure 3 Schematic assembly structure diagram of the cardboard rack of the present invention;

[0025] Figure 4 Schematic structure diagram of the assembly rack of the present invention;

[0026] Figure 5 Schematic structure diagram of the top feeding assembly of the present invention;

[0027] Figure 6 Partial cross-sectional view of the main body of the paper bowl forming machine of the present invention;

[0028] Figure 7 Schematic structure diagram of the vertical air pipe of the present invention;

[0029] Figure 8 For the present invention Figure 7 Enlarged view of part A;

[0030] Figure 9 Schematic working diagram of the bottom feeding assembly of the present invention.

[0031] In the figure: 1. Main body of the paper bowl forming machine; 2. Through groove; 3. Conveyor track; 4. Cardboard rack; 5. Assembly rack; 51. Base plate; 52. Longitudinal hole; 53. Support rod; 6. Top feeding assembly; 601. Upper suction cup; 602. Horizontal sliding table; 603. Slide block; 604. Second cylinder; 605. Upper movable frame; 606. Cone block; 607. Driving rack; 608. Inclined plane; 609. Slide rail; 610. Spring; 7. Bottom feeding assembly; 701. Lower suction cup; 702. Support plate; 703. Lower movable frame; 704. First cylinder; 705. Vertical air pipe; 706. Sleeve; 707. Upper inclined rod; 708. Connecting seat; 709. Third cylinder; 71. Guide groove; 710. Round pin; 711. Vertical groove; 712. Spiral groove; 8. Supporting piece; 81. Rotating shaft; 82. Collar; 83. Bolt; 84. Driving gear. Detailed implementation manners

[0032] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0033] As introduced in the background art, there are deficiencies in the prior art. To solve the above technical problems, the present application proposes a paper bowl forming machine and a production method for octagonal paper bowls.

[0034] Embodiment 1: Please refer to Figures 1-4 , a paper bowl forming machine and a production method for octagonal paper bowls, including a main body 1 of the paper bowl forming machine, a through groove 2 provided on the top surface of the main body 1 of the paper bowl forming machine, a conveying track 3 installed directly above the through groove 2, and a cardboard rack 4 installed directly above the conveying track 3. An assembly rack 5 is provided above the cardboard rack 4, and a top feeding component 6 is installed on the assembly rack 5. A plurality of supporting pieces 8 are provided on the outer edge of the cardboard rack 4, and a bottom feeding component 7 is provided in the through groove 2;

[0035] The supporting piece 8 is installed at the bottom of the assembly rack 5 through a rotating shaft 81, and the supporting piece 8 is used to support the cardboard;

[0036] The top feeding component 6 includes an upper suction cup 601 that can move vertically and horizontally. The top feeding component 6 is used to adsorb the top of the cardboard and drive the supporting piece 8 to move;

[0037] The bottom feeding component 7 includes a plurality of lower suction cups 701 that can move vertically and a support plate 702. The bottom feeding component 7 is used to adsorb the bottom of the cardboard and drive the cardboard to move upward;

[0038] During processing, the stacked paper cups in the cardboard rack 4 are supported by the supporting pieces 8. For ordinary cardboard, the bottom feeding component 7 operates, forcing the lower suction cup 701 to adsorb the bottom surface of the cardboard and move downward to achieve feeding; for special cardboard, the top feeding component 6 operates, first driving the supporting piece 8 to move and separate from the cardboard rack 4, and also causing the upper suction cup 601 to adsorb the top of the cardboard and then transfer it to the conveying track 3. At the same time, the bottom feeding component 7 operates, forcing the support plate 702 to extend to the bottom of the cardboard and then move upward, thereby driving the cardboard to move upward to achieve feeding;

[0039] Among them, a pushing system and a material pressing system are also provided at the top of the main body 1 of the paper bowl forming machine. The pushing system and the material pressing system are the same as those in the prior art. The pushing system includes an electric sliding table extending from the cardboard rack 4 to the material pressing system. A movable pushing block is arranged on the electric sliding table. When the electric sliding table operates, the cardboard on the conveying track is pushed by the movement of the pushing block. The conveying track 3 is composed of two symmetrically distributed angle steels. The distance between the two angle steels matches the width of the cardboard. The cardboard rack mainly includes multiple vertical shafts for positioning the edges of the cardboard and extension blocks arranged at the bottom ends of the vertical shafts. The extension blocks are used to support the edges of the cardboard. The conveying track 3 extends from the bottom of the cardboard rack 4 to the material pressing system. Both the upper suction cup 601 and the lower suction cup 701 are externally connected to a vacuum generating system for generating suction. When processing normal cardboard, multiple supporting pieces 8 all extend into the cardboard rack 4, thereby supporting the upper part of the stacked cardboard. Special cardboard refers to cardboard with poor toughness or cardboard with an uneven bottom surface.

[0040] During use, if processing ordinary cardboard, the bottom loading method is adopted. At this time, the bottom plate is stacked inside the cardboard rack 4, and the upper part of the cardboard is supported by multiple supporting pieces 8 to avoid the pressure acting on the bottommost cardboard. When the lower part of the cardboard is used up, the top loading component 6 is started. After the top loading component 6 operates, it drives the supporting pieces 8 to move and separate from the inside of the cardboard rack 4, causing the upper part of the cardboard to fall downward, thereby ensuring the continuity of loading. During the processing, the bottom loading component 7 operates, forcing the lower suction cup 701 to move vertically. After the lower suction cup 701 adsorbs the bottom of the cardboard, it transfers it to the bottom conveying track 3 to achieve loading.

[0041] If processing special cardboard, the top loading method is adopted. At this time, the top loading component 6 is started. When the top loading component 6 operates, it first drives multiple supporting pieces 8 to move and separate from the inside of the cardboard rack 4, and then drives the upper suction cup 601 to move. The upper suction cup 601 first adsorbs the top of the cardboard and then places the cardboard on the conveying track 3 to achieve loading. At the same time, the bottom loading component 7 operates, forcing multiple supporting plates 702 to extend to the bottom of the cardboard to achieve stable support for the cardboard. And after the top cardboard is consumed, the bottom loading component 7 also drives multiple supporting plates 702 to move upward, continuously lifting the cardboard upward.

[0042] By arranging multiple supporting pieces 8 at the edge of the cardboard rack 4 and using the supporting pieces 8 to support part of the cardboard inside the cardboard rack 4, it can effectively prevent the cardboard at the bottom of the cardboard rack 4 from being bent and deformed, ensuring the processing quality of the paper bowl. In addition, when processing special cardboard, by setting the top loading component 6 and using the upper suction cup 601 to adsorb the top surface of the cardboard and then placing it on the conveying track 3, it is more reasonable than the bottom loading method, avoiding situations such as cardboard deformation, damage or difficult loading.

[0043] Embodiment 2: Refer toFigure 6 and Figure 7 , different from the above embodiments, the bottom loading assembly 7 further includes a lower movable frame 703 located in the through groove 2 and a first cylinder 704 fixed to the top surface of the paper bowl forming machine body 1. The output end of the first cylinder 704 is vertically downward and fixedly connected to the lower movable frame 703. A plurality of vertical air pipes 705 are fixed on the lower movable frame 703. The lower suction cups 701 are provided in plurality and are respectively fixed to the tops of the respective vertical air pipes 705. The support plate 702 is mounted on the vertical air pipes 705;

[0044] Among them, two first cylinders 704 are provided. The output ends of the two first cylinders 704 are both fixed to the lower movable frame 703. In the initial state, the support plate 702 is located in the middle of the vertical air pipes 705, and the height of the support plate 702 is lower than the height of the lower suction cups 701. During use, the telescopic housing of the first cylinder 704 drives the lower movable frame 703 to move vertically. When the lower movable frame 703 moves vertically, it drives a plurality of lower suction cups 701 to move vertically. When the lower suction cups 701 contact the bottom of the cardboard, they adsorb the cardboard, and then after the suction cups move down, the cardboard is taken off from the cardboard rack 4 and placed on the conveying track 3 below the cardboard rack 4;

[0045] By providing the first cylinder 704, the telescopic movement of the first cylinder 704 is used to drive the lower suction cups 701 to move vertically, which is beneficial to adsorb the cardboard and transfer it to the conveying track 3, thereby realizing the efficient loading work for ordinary cardboard.

[0046] Embodiment 3, refer to Figure 4 and Figure 5, different from the above embodiments, the rotating shaft 81 is located at the edge of the cardboard rack 4. One end of the supporting piece 8 is fixed with a collar 82. The collar 82 is sleeved on the rotating shaft 81 and fixed on the rotating shaft 81 through a bolt 83. The top end of the rotating shaft 81 is rotatably connected to the assembly frame 5. A driving gear 84 is fixed near the top end of the rotating shaft 81. The assembly frame 5 includes a horizontally arranged base plate 51. The base plate 51 is fixed on the paper bowl forming machine main body 1 through a support rod 53. A strip-shaped hole 52 is formed on the surface of the base plate 51. The strip-shaped hole 52 is parallel to the conveying track 3. The top feeding assembly 6 includes a transverse sliding table 602 fixed on the top of the assembly frame 5. The transverse sliding table 602 is parallel to the conveying track 3. A slider 603 is installed on the transverse sliding table 602. A second cylinder 604 is fixedly connected to the slider 603. The output end of the second cylinder 604 is vertically downward and fixed with an upper movable frame 605. The upper movable frame 605 is located directly above the cardboard rack 4. The upper suction cups 601 are provided in plurality and are all fixed on the upper movable frame 605. The top feeding assembly 6 further includes a conical block 606 fixed on the top of the upper movable frame 605 and a plurality of driving racks 607 distributed around the conical block 606. The driving racks 607 are engaged with the driving gear 84. One end of the driving rack 607 close to the conical block 606 is provided with an inclined surface 608. A slide rail 609 is arranged on the top of the driving rack 607. The slide rail 609 is fixed to the bottom of the assembly frame 5. The driving rack 607 is slidably connected to the slide rail 609. One end of the driving rack 607 far from the conical block 606 is fixedly connected with a spring 610. One end of the spring 610 is fixedly connected to the end of the slide rail 609.

[0047] Among them, the collar 82 is provided with a screw hole matching the bolt 83. When the bolt 83 is screwed into the screw hole, the end of the bolt 83 abuts against the rotating shaft 81 to achieve fixation. The transverse sliding table 602 is set as an electric sliding table. The inclined surfaces 608 at the ends of the plurality of driving racks 607 are all attached to the side wall of the conical block 606. In the initial state, the spring 610 is in a compressed state;

[0048] During use, in the process of processing ordinary cardboard, if the cardboard below the supporting piece 8 is exhausted, the second cylinder 604 is activated. When the second cylinder 604 extends, it drives the upper movable frame 605 and the conical block 606 to move downward. When the conical block 606 moves downward, the elastic force of multiple springs 610 pushes the driving rack 607, causing it to move along the slide rail 609 in the direction of the conical block 606. When the driving rack 607 moves, it drives the driving gear 84 to rotate. When the driving gear 84 rotates, it drives the rotating shaft 81 to rotate. When the rotating shaft 81 rotates, it drives the supporting piece 8 installed on the rotating shaft 81 to rotate, so that one end of the supporting piece 8 moves out of the inner side of the cardboard rack 4. At this time, the cardboard supported above the supporting piece 8 drops to the bottom of the cardboard rack 4, which is beneficial to intermittently supplement the cardboard. When processing special cardboard, on the basis of the second cylinder 604 driving the supporting piece 8 to move, it further extends, driving the upper movable frame 605 and the upper suction cup 601 to continue to move downward. When the upper suction cup 601 adsorbs the top surface of the cardboard, the cardboard is adsorbed. Then the second cylinder 604 contracts, causing the upper suction cup 601 and the cardboard to move upward to separate from the cardboard rack 4. After that, the horizontal slide 602 is activated. When the horizontal slide 602 operates, the slider 603 slides, driving the second cylinder 604, the upper movable frame 605, the upper suction cup 601 and the cardboard to move horizontally. When the cardboard moves above the conveying track 3, the second cylinder 604 is activated again. The second cylinder 604 extends, causing the upper suction cup 601 and the cardboard to move downward until the cardboard moves down to the conveying track 3, thereby realizing the feeding of special cardboard.

[0049] By setting the top feeding assembly 6, the top feeding assembly 6 drives the upper suction cup 601 to move vertically and horizontally, which is beneficial to adsorb the cardboard from the top and place it on the conveying track 3, and thus is suitable for the feeding work of special cardboard. And when processing ordinary cardboard, the top feeding assembly 6 can also drive the supporting piece 8 to move, so that the cardboard above the supporting piece 8 drops below the supporting plate 702, facilitating the replenishment of the cardboard in the cardboard rack 4.

[0050] Embodiment 4, refer to Figures 6-9 , different from the above embodiment, a sleeve 706 is movably sleeved on each of the plurality of vertical air pipes 705. One side of the sleeve 706 is fixedly connected with an upper inclined rod 707. The supporting plate 702 is fixed at the top end of the upper inclined rod 707. A connecting seat 708 is rotatably connected to the outside of the sleeve 706. A third cylinder 709 is fixed on the lower movable frame 703. The output end of the third cylinder 709 is vertically upward and fixedly connected with the connecting seat 708. A guiding groove 71 is formed on the surface of the vertical air pipe 705. One side of the upper inclined rod 707 is fixedly connected with a round pin 710. The round pin 710 extends into the guiding groove 71. The guiding groove 71 includes a vertical groove 711 at the bottom and a spiral groove 712 at the top. The bottom end of the spiral groove 712 is communicated with the top end of the vertical groove 711.

[0051] Among them, the round pin 710 is horizontally arranged. In the initial state, the round pin 710 is located in the vertical groove 711. When processing special cardboard, first start the third cylinder 709. The third cylinder 709 extends to drive the connecting seat 708 to move upward. When the connecting seat 708 moves upward, it drives the sleeve 706, the upper inclined rod 707, the support plate 702 and the round pin 710 to move upward. At this time, the round pin 710 first moves upward along the vertical groove 711. When the round pin 710 moves into the spiral groove 712, the round groove drives the sleeve 706 to rotate along the spiral groove 712. The rotation of the sleeve 706 causes the inclined rod and the support plate 702 to swing. The support plate 702 not only moves upward but also rotates around the vertical air pipe. Finally, the support plate 702 moves to the bottom of the cardboard rack 4, and the height of the support plate 702 is higher than the height of the lower suction cup 701. Then start the first cylinder 704. When the first cylinder 704 contracts, it drives the lower movable frame 703 to move upward, and further drives the multiple support plates 702 on the lower movable frame 703 to move upward. When the support plate 702 moves upward, it just pushes the cardboard in the cardboard rack 4 upward, which is beneficial to continuously push the cardboard upward when the cardboard is consumed;

[0052] By arranging a movable support plate 702 on the movable frame, the third cylinder 709 is used to pre-drive the support plate 702 to move below the cardboard, and then the first cylinder 704 is used to drive the support plate 702 to move upward, thereby gradually pushing the cardboard in the cardboard rack 4 upward. The multiple support plates 702 support the bottom of the cardboard, with a large support area, avoiding cardboard deformation, and can also gradually push the cardboard when the cardboard is consumed, ensuring that the height of the top of the cardboard is consistent, so that the feeding path always maintains the shortest distance, thereby improving the feeding efficiency.

[0053] Although the embodiments of the present invention have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principle and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A paper bowl forming machine, comprising a paper bowl forming machine body, a through slot arranged on the top surface of the paper bowl forming machine body, a conveying track installed just above the through slot, and a paperboard rack installed just above the conveying track, characterized in that: An assembly frame is arranged above the paperboard frame, a top loading assembly is installed on the assembly frame, a plurality of supporting sheets are arranged on the outer edge of the paperboard frame, and a bottom loading assembly is arranged in the through slot; The supporting sheet is installed at the bottom of the assembly frame through a rotating shaft, and the supporting sheet is used to support the paperboard; The top loading assembly includes an upper suction cup that can move vertically and horizontally, and the top loading assembly is used to absorb the top of the paperboard and drive the supporting sheet to move; The bottom loading assembly includes a plurality of lower suction cups and a support plate capable of vertical movement, and the bottom loading assembly is used to absorb the bottom of the paperboard and to drive the paperboard to move upward; During processing, the stacked paper cups in the cardboard rack are supported by the supporting sheet. For ordinary cardboard, the bottom loading component operates, forcing the lower suction cup to adsorb the bottom surface of the cardboard and move downward to achieve loading; for special cardboard, the top loading component operates, first driving the supporting sheet to move and detach from the cardboard rack, and also allowing the upper suction cup to adsorb the top of the cardboard and then move it to the conveyor track. At the same time, the bottom loading component operates, forcing the support plate to extend to the bottom of the cardboard and then move upward, thereby driving the cardboard to move upward to achieve loading.

2. A paper bowl forming machine according to claim 1, characterized in that: The bottom feeding assembly also includes a lower movable frame located in the through groove and a first cylinder fixed on the top surface of the paper bowl forming machine body, the output end of the first cylinder is vertically downward and fixedly connected to the lower movable frame, a plurality of vertical air pipes are fixed on the lower movable frame, the lower suction cup is arranged in plurality and respectively fixed on the top of each vertical air pipe, and the support plate is installed on the vertical air pipe.

3. A paper bowl forming machine according to claim 1, characterized in that: The rotating shaft is located at the edge of the cardboard frame, a ring is fixed at one end of the supporting plate, the ring is sleeved on the rotating shaft and fixed on the rotating shaft by bolts, the top end of the rotating shaft is rotatably connected to the assembly frame, and a driving gear is fixed near the top end of the rotating shaft.

4. A paper bowl forming machine according to claim 3, characterized in that: The assembly frame comprises a horizontally arranged base plate, the base plate is fixed on the paper bowl forming machine body through a supporting rod, strip holes are opened on the surface of the base plate, and the strip holes are distributed parallel to the conveying track.

5. A paper bowl forming machine according to claim 4, characterized in that: The top loading assembly includes a transverse slide fixed on the top of the assembly frame, the transverse slide is distributed parallel to the conveying track, a slider is installed on the transverse slide, a second cylinder is fixedly connected to the slider, an output end of the second cylinder is vertically downward and an upper movable frame is fixed thereto, the upper movable frame is located directly above the cardboard frame, and a plurality of upper suction cups are provided and are all fixed on the upper movable frame.

6. A paper bowl forming machine according to claim 5, characterized in that: The top loading assembly also includes a conical block fixed on the top of the upper movable frame and a plurality of driving racks distributed around the conical block, the driving rack meshing with the driving gear, the driving rack having an inclined surface at one end close to the conical block, a slide rail being provided on the top of the driving rack, the slide rail being fixed to the bottom of the assembly frame, the driving rack being slidably connected to the slide rail, the driving rack having an end away from the conical block fixedly connected to a spring, one end of the spring being fixedly connected to the end of the slide rail.

7. A paper bowl forming machine according to claim 2, characterized in that: A plurality of the vertical air pipes are movably sleeved with a sleeve, one side of the sleeve is fixedly connected to an upper inclined rod, the support plate is fixed to the top of the upper inclined rod, the sleeve is rotatably connected to a connecting seat outside, a third cylinder is fixed on the lower movable frame, and the output end of the third cylinder is vertically upward and fixedly connected to the connecting seat.

8. A paper bowl forming machine according to claim 7, characterized in that: A guide groove is provided on the surface of the vertical air pipe, and a round pin is fixedly connected to one side of the upper inclined rod, and the round pin extends into the guide groove.

9. A paper bowl forming machine according to claim 8, characterized in that: The guide groove comprises a vertical groove at the bottom and a spiral groove at the top, and the bottom end of the spiral groove is communicated with the top end of the vertical groove.

10. A method for producing an octagonal paper bowl, characterized in that: The method for producing the octagonal paper bowl uses a paper bowl forming machine as described in any one of claims 1-9.

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