Full-automatic paper tray forming machine and production process thereof

Abstract

The present application relates to a full-automatic paper tray forming machine and a production process thereof, and belongs to the field of automatic machinery, comprising a base frame, a storage roller rotatably connected to the base frame, a printing device connected to the storage roller, a drying device provided on the printing device, a pre-folding device provided on the side of the drying device away from the printing device, the pre-folding device comprising a plurality of pre-folding rods, each pre-folding rod being connected to a plurality of pre-folding discs, the pre-folding discs being provided on the side of the drying device away from the pre-folding device, a forming device provided on the side of the pre-folding disc away from the drying device, the forming device comprising an upper forming roller and a lower forming roller, a plurality of forming protrusions being fixedly connected to the outer wall of the upper forming roller, a plurality of forming grooves being formed in the outer wall of the lower forming roller, the forming protrusions on the upper forming roller being capable of moving into the forming grooves on the outer wall of the lower forming roller, the forming protrusions and the forming grooves being in one-to-one correspondence, and the upper forming roller and the lower forming roller both being connected to an electromagnetic heating device for heating paper, the present application having the effect of improving the wrinkle condition of kraft paper and facilitating the arrangement of the shape of kraft paper.

Description

Technical Field

[0001] This invention relates to a paper tray forming machine, and more particularly to a fully automatic paper tray forming machine and its production process, which belongs to the field of automated machinery. Background Technology

[0002] When transporting fruit, it is necessary to take precautions against moisture. Currently, kraft paper is commonly used to wrap the fruit to ensure its freshness.

[0003] In the prior art, Chinese Patent Publication No. CN112046087A discloses a paper tray forming machine, including a paper tray storage mechanism (B) and a paper tray forming mechanism (D) installed at the front and rear of a frame (A). A paper tray conveying mechanism (C) is installed at the bottom of the paper tray storage mechanism (B) to convey a stack of rectangular paperboards placed on the paper tray storage mechanism (B) one sheet at a time to the front end of the paper tray forming mechanism (D). This invention facilitates subsequent operation and is suitable for paper trays of varying widths: the widths of the paper tray storage sleeve and the paper tray forming sleeve can be adjusted.

[0004] This patent solves the problem of manual paper tray processing, but when processing kraft paper, it is all done on a pre-set assembly line, and the size and shape of the kraft paper cannot be changed.

[0005] The existing technical solutions mentioned above have the following drawbacks: when users use them, the pre-set production line is difficult to produce kraft paper that meets the requirements for fruits of different sizes, and the wrinkles and shapes of the kraft paper are difficult to control. Summary of the Invention

[0006] The purpose of this invention is to improve the wrinkling of kraft paper and facilitate the shaping of kraft paper by providing a fully automatic paper tray forming machine and its production process.

[0007] The technical solution of the present invention to solve the above-mentioned technical problems is as follows:

[0008] A fully automatic paper tray forming machine includes a storage roller connected to a printing device for printing on paper. A drying device for drying the paper is located on the side of the printing device away from the storage roller. A pre-folding device for folding the paper is located on the side of the drying device away from the printing device. The pre-folding device includes multiple pre-folding rods, each connected to multiple pre-folding discs that can move on the pre-folding rods. A forming device for compressing and forming the paper is located on the side of the pre-folding discs away from the drying device. The forming device includes an upper forming roller and a lower forming roller. Multiple forming protrusions are fixed to the outer wall of the upper forming roller, and multiple forming grooves are formed on the outer wall of the lower forming roller. The forming protrusions on the upper forming roller can move into the forming grooves on the outer wall of the lower forming roller, with each forming protrusion and groove corresponding to the other. Both the upper and lower forming rollers are connected to an electromagnetic heating device for heating the paper.

[0009] Preferably, the forming device is provided on the side away from the pre-folding device for cutting the paper edges. The cutting device includes cutting motors fixed to both sides of the base frame in the width direction, and each cutting motor's output shaft is fixed with a cutting blade.

[0010] Preferably, the side of the cutting device away from the drying device is provided with a positioning device for aligning the paper, and the positioning device includes positioning rods fixed to both sides of the base frame in the width direction.

[0011] Preferably, a cutting device for cutting paper is provided on the side of the positioning device away from the cutting device. The cutting device includes a cutting block fixed to the base frame, a cutting motor fixed to the base frame, a cutting roller fixed to the output shaft of the cutting motor, and a plurality of cutting blades fixed to the outer circumferential surface of the cutting roller. The cutting blades can abut against the cutting block.

[0012] Preferably, the cutting device is provided on the side away from the positioning device for conveying the cut paper, and the conveying device includes a conveyor belt fixed to the base frame.

[0013] Preferably, a stacking device for integrating the paper is provided on the side of the conveying device away from the cutting device. The stacking device includes a pusher cylinder, the piston rod of which is arranged along the length of the base frame, and a pusher rod is fixedly connected to the piston rod of the pusher cylinder.

[0014] Preferably, the pre-folding rod and the pre-folding disc are capable of moving in the height direction.

[0015] Preferably, the upper forming roller is connected to a forming cylinder, and the piston rod of the forming cylinder is set vertically downward.

[0016] A fully automatic paper tray forming machine production process includes the following steps:

[0017] S1: Sheet feed: Rolls of paper are fed into the printing unit;

[0018] S2: Printing: The paper is fed into the printing press and the entire sheet is printed;

[0019] S3: Drying: After the entire printing process is completed, the paper enters the drying device to dry.

[0020] S4: Pre-folding: The paper is moved to the pre-folding device and folded.

[0021] S5: Shaping: After folding, the product directly enters the shaping device for processing;

[0022] S6: Edge trimming: The paper enters the edge trimming device, where the edges of the paper are smoothed.

[0023] S7: Positioning: The paper enters the positioning device, and the position of the paper is defined;

[0024] S8: Cutting: Processing paper into the required size using a cutting device;

[0025] S9: Conveyance: Convey the cut paper;

[0026] S10: Stacking: Cut sheets of paper are stacked using a stacking device.

[0027] Compared with the prior art, the beneficial effects of the present invention are:

[0028] 1. When using the device, users can adjust the distribution position of the pre-folding discs on the pre-folding rod according to production needs. At the same time, they can tighten the pre-folding bolts to adjust the height of the pre-folding rod. After the pre-folding vertical rod passes between the two pre-folding discs against the paper, the paper forms a rib shape, which makes it easy for users to adjust the thickness and wrinkle degree of the paper in a timely manner, ensuring the yield rate and ensuring that the paper is more resilient and less prone to tearing in subsequent production processes.

[0029] 2. When using the product, the user starts the forming cylinder and electromagnetic heater according to the paper product requirements. The forming cylinder pushes the moving frame and the upper forming roller to move, thereby adjusting the tightness between the upper forming roller and the lower forming roller. After the paper passes through the upper forming roller and the lower forming roller, it is heated by the electromagnetic heater, and grooves for storing fruit are formed on the paper. This allows the user to adjust the thickness and wrinkle degree of the paper in a timely manner, thereby improving the yield. Attached Figure Description

[0030] Figure 1 This is a schematic diagram of the structure of the present invention;

[0031] Figure 2 This is a schematic diagram of the pre-folding device structure of the present invention;

[0032] Figure 3 This is a schematic diagram of the molding device structure of the present invention;

[0033] Figure 4 This is a schematic diagram of the edge-cutting device of the present invention;

[0034] Figure 5 This is a schematic diagram of the positioning device structure of the present invention;

[0035] Figure 6 This is a schematic diagram of the cutting device structure of the present invention;

[0036] Figure 7 This is a schematic diagram of the stacking device structure of the present invention.

[0037] In the diagram, 1. Base frame; 2. Storage roller; 3. Printing device; 31. Printing tank; 32. Printing roller; 4. Drying device; 41. Drying box; 42. Drying roller; 5. Pre-folding device; 51. Support rod; 52. Pre-folding rod; 53. Pre-folding bolt; 54. Pre-folding disc; 55. Pre-folding horizontal bar; 56. Pre-folding vertical bar; 6. Forming device; 61. Upper forming roller; 611. Forming protrusion; 62. Lower forming roller; 621. Forming groove; 6 3. Forming cylinder; 631. Moving frame; 64. Forming motor; 65. Electromagnetic heating device; 66. Electromagnetic heater; 7. Edge trimming device; 71. Edge trimming motor; 711. Edge trimming knife; 72. Positioning device; 721. Positioning rod; 8. Cutting device; 81. Cutting block; 82. Cutting motor; 83. Cutting roller; 84. Cutting knife; 9. Conveying device; 91. Conveyor belt; 92. Stacking device; 93. Pushing cylinder; 94. Pushing rod. Detailed Implementation

[0038] The principles and features of the present invention are described below with reference to the accompanying drawings. The examples given are only for explaining the present invention and are not intended to limit the scope of the present invention.

[0039] like Figure 1 As shown, a fully automatic paper tray forming machine includes a base frame 1, a storage roller 2 rotatably connected to the base frame 1, a printing device 3 disposed near the storage roller 2 on the base frame 1, the printing device 3 including a printing tank 31 fixed to the base frame 1, a printing roller 32 rotatably connected to the printing tank 31, a drying device 4 disposed on the side of the printing roller 32 away from the storage roller 2, the drying device 4 including a drying box 41 fixed to the base frame 1, and a drying roller 42 rotatably connected to the drying box 41.

[0040] When using the product, the user feeds the paper on the storage roller 2 onto the printing roller 32 for full-page printing. After printing, the paper is fed onto the drying roller 42 for drying.

[0041] like Figure 1 and Figure 2As shown, a pre-folding device 5 is provided on the side of the drying device 4 away from the printing device 3. The pre-folding device 5 includes multiple support rods 51 fixed to the base frame 1. The support rods 51 are distributed on both sides of the base frame 1 in the width direction and arranged in an array along the length direction of the base frame 1, with each support rod 51 on both sides of the base frame 1 corresponding to the other. A pre-folding rod 52 is slidably connected to every two corresponding support rods 51. The pre-folding rod 52 is horizontally arranged and perpendicular to the support rod 51. The pre-folding rod 52 slides along the height direction of the support rod 51. Each pre-folding rod 52 has a pre-folding bolt 53 threaded to both ends. The pre-folding bolt 53 passes through the support rod 51 and abuts against the support rod 51. Multiple pre-folding discs 54 are rotatably connected to each pre-folding rod 52, and the pre-folding discs 54 can move on the pre-folding rod 52. Each pair of corresponding support rods 51 are fixedly connected to a pre-folded horizontal bar 55. The pre-folded horizontal bar 55 is set along the width direction of the base frame 1. Each pre-folded horizontal bar 55 has multiple pre-folded vertical bars 56 slidably connected to its bottom. The pre-folded vertical bars 56 can extend between two pre-folded discs 54.

[0042] In use, adjust the distribution position of the pre-folding discs 54 on the pre-folding rods 52 according to production needs. At the same time, tighten the pre-folding bolts 53 to adjust the height of the pre-folding rods 52. After the pre-folding vertical rods 56 pass between the two pre-folding discs 54 against the paper, the paper forms a ribbed shape, which allows users to adjust the thickness and wrinkle degree of the paper in a timely manner to ensure the yield rate. At the same time, it ensures that the paper is more resilient and less prone to tearing in subsequent production processes.

[0043] like Figure 1 and Figure 3As shown, a forming device 6 is provided on the side of the pre-folding disc 54 away from the drying device 4. The forming device 6 includes an upper forming roller 61 and a lower forming roller 62 mounted on the base frame 1. The upper forming roller 61 is located directly above the lower forming roller 62, and the lower forming roller 62 is rotatably connected to the base frame 1. A forming cylinder 63 is connected to the base frame 1 at the position corresponding to the upper forming roller 61. The cylinder body of the forming cylinder 63 is fixed to the top of the base frame 1, and the piston rod of the forming cylinder 63 is vertically downward. A movable frame 631 is fixedly connected to the piston rod of the forming cylinder 63, and the upper forming roller 61 is rotatably connected to the movable frame 631. Two forming motors 64 are fixedly connected to the movable frame 631 and the base frame 1, respectively. The output shaft of the forming motor 64 on the movable frame 631 is fixedly connected to the upper forming roller 61, and the forming motor 64 on the base frame 1 is fixedly connected to the lower forming roller 62. Multiple forming protrusions 611 are fixed to the outer wall of the upper forming roller 61, and multiple forming grooves 621 are formed on the outer wall of the lower forming roller 62. The forming protrusions 611 on the upper forming roller 61 can move into the forming grooves 621 on the outer wall of the lower forming roller 62, and the forming protrusions 611 on the upper forming roller 61 and the forming grooves 621 on the lower forming roller 62 correspond one-to-one. An electromagnetic heating device 65 is provided at the position corresponding to the upper forming roller 61 and the lower forming roller 62 on the base frame 1. The electromagnetic heating device 65 includes two electromagnetic heaters 66, which are fixed to the upper forming roller 61 and the lower forming roller 62 respectively.

[0044] In use, according to the paper product requirements, the forming cylinder 63 and the electromagnetic heater 66 are activated. The forming cylinder 63 pushes the moving frame 631 and the upper forming roller 61 to move, thereby adjusting the tightness between the upper forming roller 61 and the lower forming roller 62. After the paper passes through the upper forming roller 61 and the lower forming roller 62, it is heated by the electromagnetic heater 66, and grooves for storing fruit are formed on the paper. This allows users to adjust the thickness and wrinkle degree of the paper in a timely manner, thereby improving the yield.

[0045] like Figure 1 and Figure 4 As shown, a trimming device 7 is provided on the side of the upper forming roller 61 away from the pre-folding disc 54. The trimming device 7 includes trimming motors 71 fixed to both sides of the base frame 1 in the width direction. The output shafts of the trimming motors 71 are arranged along the width direction of the base frame 1, and each trimming motor 71 has a trimming blade 711 fixedly connected to its output shaft. A positioning device 72 is provided on the side of the trimming blades 711 away from the upper forming roller 61. The positioning device 72 includes positioning rods 721 fixed to both sides of the base frame 1 in the width direction. The positioning rods 721 are arranged along the length direction of the base frame 1 (see reference). Figure 5A cutting device 8 is provided on the side of the positioning rod 721 away from the cutting blade 711. The cutting device 8 includes a cutting block 81 fixed to the base frame 1. The cutting block 81 is arranged along the width direction of the base frame 1. A cutting motor 82 is fixed to the base frame 1. The output shaft of the cutting motor 82 is arranged along the width direction of the base frame 1. A cutting roller 83 is fixed to the output shaft of the cutting motor 82. A plurality of cutting blades 84 are fixed to the outer circumferential surface of the cutting roller 83. The cutting blades 84 are arranged in a circumferential array along the cutting roller 83. The cutting blades 84 can abut against the cutting block 81 (see reference). Figure 6 A conveying device 9 is provided on the side of the cutting blade 84 away from the positioning rod 721. The conveying device 9 includes a conveyor belt 91 fixed to the base frame 1. A stacking device 92 is provided on the side of the conveyor belt 91 away from the cutting blade 84. The stacking device 92 includes a pushing cylinder 93. The cylinder body of the pushing cylinder 93 is fixed to the base frame 1, and the piston rod of the pushing cylinder 93 is arranged along the length direction of the base frame 1. A pushing rod 94 is fixedly connected to the piston rod of the pushing cylinder 93 (see reference). Figure 7 ).

[0046] Working principle: Based on production needs, the distribution position of the pre-folding discs 54 on the pre-folding rods 52 is adjusted. The pre-folding bolts 53 are tightened to adjust the height of the pre-folding rods 52. This activates the forming cylinder 63 and the electromagnetic heater 66. The forming cylinder 63 adjusts the moving frame 631 and the upper forming roller 61, controlling the tightness between the upper forming roller 61 and the lower forming roller 62. After the paper on the storage roller 2 is transferred to the printing roller 32 for full-page printing, the drying roller 42 dries the paper. Subsequently, the paper, pressed against the pre-folding vertical rod 56, passes between the two pre-folding discs 54, forming different rib shapes. Then, the paper passes between the upper forming roller 61 and the lower forming roller 62, and is heated by the electromagnetic heater 66, forming grooves for storing fruit on the paper. This ensures that users can adjust the paper thickness and crease degree according to production needs, improving the yield rate. It also improves the paper's toughness and tear resistance in subsequent production processes. When the cutting motor 71 is started, the wrinkled paper passes through the rotating cutting blade 711, and both ends of the paper become neat. Under the limit of the two positioning rods 721, the paper returns to the designated standard position. When the paper passes through the cutting blade 84, the cutting motor 82 is started, and the cutting motor 82 drives the cutting blade 84 to rotate. The cutting blade 84 and the cutting block 81 cut the paper together. The cut paper reaches the position of the push rod 94 through the conveyor belt 91. After the paper is stacked to a certain thickness, the push cylinder 93 is started, and the push cylinder 93 pushes the push rod 94, which can push the stacked paper into the packaging box.

[0047] A fully automatic paper tray forming machine production process includes the following steps:

[0048] S1: Sheet feeding: Rolls of paper are fed into printing unit 3;

[0049] The storage roller 2 uses a magnetic powder tension controller to effectively control the tightness of the paper. The storage roller 2 can hold two rolls of paper with a diameter of 1200 (mm) at the same time, and each roll can bear a weight of 1 ton.

[0050] S2: Printing: The paper enters the printing unit 3 for full-page printing;

[0051] The printing station uses a frequency converter to control the printing speed, and the position of the printing roller 32 can be adjusted by adjusting the handwheel to control the depth of the printing ink.

[0052] S3: Drying: After the entire printing is completed, the paper enters the drying device 4 to dry;

[0053] The drying device 4 uses a 40kW electromagnetic heating system for heating, and the drying roller 42 is driven by a 5.5kW motor. The electromagnetic heating is fast, environmentally friendly and energy-saving, without open flame, safe and hygienic, highly safe and energy efficient.

[0054] S4: Pre-folding: The paper is moved to the pre-folding device 5 and folded.

[0055] The pre-folding device 5 is designed with pre-folding distance and depth according to the internal structure of the mold, and pre-folds the paper in advance.

[0056] S5: Shaping: After folding, the product directly enters the forming device 6 for processing;

[0057] The molding device 6, a fully servo roll forming machine, is driven by a 5.5kW Delta servo motor, and the rotation speed can be controlled through the human-machine interface.

[0058] S6: Edge trimming: The paper enters the edge trimming device 7 and the edges of the paper are flattened;

[0059] The edge trimming device 7 is driven by a 2.2kw motor and uses two roller cutters to remove excess edges and corners from the finished product.

[0060] S7: Positioning: The paper enters the positioning device 72, and the position of the paper is defined;

[0061] S8: Cutting: The paper is processed into the required size by the cutting device 8;

[0062] The cutting station uses a 5.5KW servo motor in roller cutting mode, and the cutting size of the paper is controlled by controlling the roller speed through the human-machine interface.

[0063] S9: Conveyance: Convey the cut paper;

[0064] The conveyor station uses a 1.5kW motor to convey products under negative pressure. The conveying distance and speed are controlled by a frequency converter, which has the functions of accurate conveying distance and quick adjustment of spacing.

[0065] S10: Stacking: The cut papers are stacked using the stacking device 92.

[0066] The stacking station uses a 1.5kw conveyor system to deliver the cut finished products to the designated station. The stacking station adopts a bottom stacking process, and the stacking structure uses push rods and receiving devices to stack the products.

[0067] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A fully automatic paper tray forming machine, comprising a base frame (1), a storage roller (2) rotatably connected to the base frame (1), a printing device (3) for printing on paper connected to the storage roller (2), and a drying device (4) for drying paper disposed on the side of the printing device (3) away from the storage roller (2), characterized in that: The drying device (4) is provided with a pre-folding device (5) for folding paper on the side away from the printing device (3). The pre-folding device (5) includes multiple pre-folding rods (52), and multiple pre-folding discs (54) are connected to each pre-folding rod (52). The pre-folding discs (54) can move on the pre-folding rods (52). The pre-folding device (5) includes multiple support rods (51) fixed to the base frame (1). The support rods (51) on both sides of the base frame (1) correspond one to one. Every two corresponding support rods (51) are slidably connected to a pre-folding rod (52). Every two corresponding support rods (51) are fixedly connected to a pre-folding horizontal bar (55). Every pre-folding horizontal bar (55) is slidably connected to a multiple pre-folding vertical bar (56) at the bottom. The pre-folding vertical bar (56) can extend between two pre-folding discs (54). The pre-folding disc (54) is provided with a forming device (6) for compressing and forming the paper on the side away from the drying device (4). The forming device (6) includes an upper forming roller (61) and a lower forming roller (62). The outer wall of the upper forming roller (61) is fixed with a plurality of forming protrusions (611). The outer wall of the lower forming roller (62) is provided with a plurality of forming grooves (621). The forming protrusions (611) on the upper forming roller (61) can move into the forming grooves (621) on the outer wall of the lower forming roller (62). The forming protrusions (611) and the forming grooves (621) correspond one to one. Both the upper forming roller (61) and the lower forming roller (62) are connected to an electromagnetic heating device (65) for heating the paper. A cutting device (7) for cutting the paper is provided on the side of the forming device (6) away from the pre-folding device (5). The edge-cutting device (7) is provided with a positioning device (72) for straightening the paper on the side away from the drying device (4). The positioning device (72) is provided with a cutting device (8) for cutting the paper on the side away from the cutting device (7). A conveying device (9) for conveying the cut paper is provided on the side of the cutting device (8) away from the positioning device (72). A stacking device (92) for integrating the paper is provided on the side of the conveying device (9) away from the cutting device (8). The pre-folding rod (52) and the pre-folding disc (54) are capable of moving in the height direction.

2. The fully automatic paper tray forming machine according to claim 1, characterized in that: The edge-cutting device (7) includes edge-cutting motors (71) fixed to both sides of the base frame (1) in the width direction, and each edge-cutting motor (71) has an edge-cutting blade (711) fixed to its output shaft.

3. The fully automatic paper tray forming machine according to claim 2, characterized in that: The positioning device (72) includes positioning rods (721) fixed to both sides of the base frame (1) in the width direction.

4. The fully automatic paper tray forming machine according to claim 3, characterized in that: The cutting device (8) includes a cutting block (81) fixedly attached to a base frame (1), a cutting motor (82) fixedly attached to the base frame (1), a cutting roller (83) fixedly attached to the output shaft of the cutting motor (82), a plurality of cutting blades (84) fixedly attached to the outer circumferential surface of the cutting roller (83), and the cutting blades (84) being able to abut against the cutting block (81).

5. The fully automatic paper tray forming machine according to claim 4, characterized in that: The conveying device (9) includes a conveyor belt (91) fixed to the base frame (1).

6. The fully automatic paper tray forming machine according to claim 5, characterized in that: The stacking device (92) includes a pusher cylinder (93), the piston rod of which is arranged along the length of the base frame (1), and a pusher rod (94) is fixedly connected to the piston rod of the pusher cylinder (93).

7. The fully automatic paper tray forming machine according to claim 1, characterized in that: The upper forming roller (61) is connected to a forming cylinder (63), and the piston rod of the forming cylinder (63) is set vertically downward.

8. A production process for a fully automatic paper tray forming machine, using the fully automatic paper tray forming machine described in any one of claims 1-7, characterized in that: Includes the following steps: S1: Sheet feeding: Rolls of paper are fed into the printing unit (3); S2: Printing: Paper enters the printing device (3) for full-page printing; S3: Drying: After the entire printing is completed, the paper enters the drying device (4) to dry the paper; S4: Pre-folding: The paper is moved to the pre-folding device (5) and folded. S5: Forming: After folding, the product directly enters the forming device (6) for processing; S6: Edge trimming: The paper enters the edge trimming device (7) and the edges of the paper are flattened; S7: Positioning: The paper enters the positioning device (72) and the position of the paper is defined; S8: Cutting: The paper is processed into the required size by the cutting device (8); S9: Conveyance: Convey the cut paper; S10： Stacking: The cut paper is stacked using a stacking device (92).

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