Method for mounting lining paper on folding box

Abstract

The invention relates to the technical field of folding box processing and forming, and discloses a folding box lining paper mounting method which comprises the following steps that S1, a material taking assembly moves to a material taking station, then the material taking assembly descends, a folding box paperboard is adsorbed by a first vacuum suction cup, then a self-adaptive adjusting mechanism acts on a main body sub-board of the folding box paperboard, and the main body sub-board of the folding box paperboard is clamped by a second vacuum suction cup; the main body split plate is driven to rotate upwards around the crease on one side; s2, the folding box paperboard is continuously conveyed; and S3, the folding box paperboard is conveyed to a shell positioning device, a suction cup mechanical arm grabs the paperboard on the positioning machine, the shell part of the paperboard is attached to the face paper, and lining paper mounting is completed. According to the device, it can be guaranteed that the shell part of the folding box is flat when being conveyed to the shell positioning device or the material receiving device, and in this way, paper boards of the folding box can be pasted with lining paper smoothly. The paper mounting quality of the folding box paperboard can be improved, defective waste products are reduced, and the production cost is saved.

Description

Technical Field

[0001] The present invention relates to the technical field of processing and forming of folding boxes, and particularly relates to a method for pasting inner lining paper on a folding box. Background Art

[0002] A finished folding box generally consists of one case and two wings on both sides. The case structure usually consists of a main cardboard in the middle, main body sub-boards at the front and rear ends of the main cardboard, and face papers pasted on the front and back sides of these main cardboards and main body sub-boards; while the wings usually adopt a five-unit cardboard or a three-unit cardboard with face paper.

[0003] During the processing of the folding box, after the case and the wings are combined, a process of pasting inner lining paper needs to be carried out to enhance the structural strength and aesthetics of the folding box. However, when pasting the inner lining paper, due to the height difference between the main cardboard and the main body sub-board in the case part during stacking, the final effect is that the main body sub-board is inclined compared with the main cardboard. This will cause that when grasping the material, the main body sub-board of the folding box may not be effectively grasped. During the process of grasping and transferring the material, the two main body sub-boards on both sides completely collapse under the action of gravity, which also causes that when placing the material, the main body sub-board may be pressed under the main cardboard or directly bent, and the pasting of the inner lining paper cannot be smoothly completed, thus producing defective products and affecting the production efficiency and product quality of the folding box. Summary of the Invention

[0004] In order to solve the problems and deficiencies existing in the above-mentioned prior art, the present invention proposes a method for pasting inner lining paper on a folding box, which can improve the pasting quality of the cardboard of the folding box, reduce the generation of defective products and waste products, and save production costs.

[0005] In order to achieve the above-mentioned invention purpose, the technical solution of the present invention is specifically as follows: A method for pasting inner lining paper on a folding box, comprising the following steps: Step S1. The material taking component moves to the material taking station, then the material taking component descends, the first vacuum suction cup adsorbs the folding box cardboard, and then the adaptive adjustment mechanism acts on the main body sub-board of the folding box cardboard to drive the main body sub-board to rotate upward around a side crease.

[0006] Step S2. The folding box cardboard is continuously conveyed; Step S3. The folding box cardboard is conveyed to the case positioning device, and then the sucker manipulator grabs the cardboard on the case positioning device and fits its case part with the face paper on one side conveyor belt to complete the pasting of the inner lining paper.

[0007] Preferably, in step S2, the material taking component conveys the folding box cardboard to the material receiving station and places the folding box cardboard on the material receiving device at the material receiving station.

[0008] Preferably, in step S3, the blank receiving device conveys the folding box cardboard to the case positioning device.

[0009] Preferably, in step S1, the adaptive adjustment mechanism rotates in the vertical plane to drive the main body sub-board to rotate upward around one side crease.

[0010] Preferably, in step S1, the adaptive adjustment mechanism rotates in the vertical plane, adjusts the adsorption surface angle to fit the surface of the main body sub-board, adsorbs and grabs the main body sub-board, and then rotates in the reverse direction to drive the main body sub-board to rotate upward around one side crease.

[0011] Preferably, a storage bin is provided at the blank taking station, and the folding box cardboard to be lined with inner paper is stacked in the storage bin.

[0012] Advantages of the present invention: 1. When the present invention grabs the folding box cardboard to be lined with inner paper, it will tractionally adjust the inclined main body sub-boards on both sides of the main cardboard to an angle that meets the feeding requirements, thereby ensuring that the case part of the folding box is flat when it is conveyed to the case positioning device or the blank receiving device, and there will be no situation where the main body sub-board is pressed below or bent during feeding. In this way, it can ensure the smooth completion of lining the folding box cardboard with inner paper. Therefore, the present invention can improve the quality of lining the folding box cardboard, reduce the generation of defective products, and save production costs.

[0013] 1. The adaptive adjustment mechanism of the present invention is a vacuum suction cup that can rotate in the vertical plane. During the rotation process, the angle (inclination) of the adsorption surface of the vacuum suction cup is constantly changing. Based on the rotational work of the vacuum suction cup, the effect of the adsorption surface of the second vacuum suction cup being completely fitted and matched with the surface of the inclined main body sub-board can be achieved. At this time, the second vacuum suction cup can firmly adsorb the main body sub-board of the case. At the same time, the vacuum suction cup rotates and resets to drive the adsorbed main body sub-board to rotate upward along one side crease, and adjusts the included angle between the main body sub-board and the main cardboard to meet the feeding requirements, which can meet the processing requirements of the next process. Therefore, the adaptive adjustment mechanism of the present invention not only has the function of adjusting the inclined main body sub-board to a preset angle, but also has the function of adsorbing and grasping materials, which not only ensures the production quality of the folding box, but also simplifies the complexity of the overall structure.

[0014] 2. With the cooperation of the material transfer mechanism, the paper loading assembly of the present invention can achieve the effect of loading materials without stopping the machine, significantly improving the production efficiency of the equipment. Description of the Drawings

[0015] The foregoing and following specific descriptions of the present invention become clearer when read in conjunction with the following drawings, in which: Figure 1 is a flowchart of the method of the present invention; Figure 2Schematic diagram of the whole paper pasting machine of the present invention; Figure 3 Schematic diagram of another angle of the whole paper pasting machine of the present invention; Figure 4 Schematic diagram of the suction cup holder of the present invention; Figure 5 Schematic diagram of the paper loading assembly of the present invention; Figure 6 Schematic diagram of the initial state of the adaptive adjustment mechanism of the present invention; Figure 7 Schematic diagram of the working state of the adaptive adjustment mechanism of the present invention; Figure 8 Schematic diagram of the folded box cardboard structure of the present invention; Figure 9 Schematic diagram of the stacked folded box cardboard to be pasted with paper of the present invention; Figure 10 Schematic diagram of the state after the adaptive adjustment mechanism drives the main body dividing plate to rotate upward of the present invention; Figure 11 Schematic diagram of another state after the adaptive adjustment mechanism drives the main body dividing plate to rotate upward of the present invention; Figure 12 Schematic diagram of yet another state after the adaptive adjustment mechanism drives the main body dividing plate to rotate upward of the present invention.

[0016] In the figure: 1. Hopper; 2. Material taking assembly; 3. First vacuum suction cup; 4. Adaptive adjustment mechanism; 5. Paper loading assembly; 6. Material receiving device; 7. Sub-lifting mechanism; 8. Material transfer mechanism; 9. Tray; 10. Striped groove; 11. Leather case positioning device; 12. Main lifting chain; 13. Sub-lifting chain; 21. Suction cup holder cross beam; 22. Suction cup holder; 23. Lifting mechanism; 41. Second vacuum suction cup; 51. Main lifting mechanism; 52. Material table; 71. Sub-lifting power source; 72. Sub-transmission unit; 81. Fork; 82. Fork support frame; 100. Main cardboard; 200. Main body dividing plate; 300. Flank; 511. Main lifting power source; 512. Main transmission unit. Detailed implementation manners

[0017] In order to enable those skilled in the art to better understand the technical solutions in the present invention, the following will further illustrate the technical solutions for achieving the invention purpose of the present invention through several specific embodiments. It should be noted that the technical solutions claimed by the present invention include but are not limited to the following embodiments. All other embodiments obtained by those skilled in the art based on the embodiments in the present invention without making creative efforts shall fall within the protection scope of the present invention.

[0018] Embodiment 1 The processing technology of the folding box is roughly divided into the following parts: (1) Leather case processing: Paste five rectangular cardboard sheets on a face paper to connect them into a whole, forming the leather case part of the folding box cardboard; among them, the cardboard in the middle is the main cardboard 100, and the two cardboard sheets on both sides of the main cardboard 100 are the main body sub-boards 200; (2) Flank processing: Paste multiple connected cardboard sheets on a face paper to connect them into a whole, and then cover another layer of face paper on the other side of the multiple connected cardboard sheets to finally complete the packaging of the flank cardboard; (3) Combination of leather case and flank: Bond the leather case completed in step (1) with the flank 300 wrapped with face paper to form a whole, as Figure 8 shown; (4) Lining paper mounting for the folding box: The combined body after bonding the leather case and the flank 300 ( Figure 8 the combined body structure shown) is stacked on a tray or a material tray, and then the stacked combined body is manually fed into the feeding device. The feeding device feeds the material and transfers the combined body to the leather case positioning device 11. After the combined body is positioned in the leather case positioning device 11, the combined body is grabbed by the suction cup manipulator, and the part of the leather case without the face paper on the other side is attached to the face paper conveyed on the conveyor belt to complete the lining paper mounting for the leather case part of the folding box; (5) Gluing the flank and folding it into a box.

[0019] In the above processing technology steps, since the flank 300 and the leather case are adhesively combined in a staggered manner, it will increase the thickness of the main cardboard 100 of the leather case part (that is, the thickness of the main cardboard 100 will become a little larger). Therefore, when stacking the combined body, the height of the main cardboard 100 of the leather case part is inconsistent with the heights of the main body sub-boards 200 at both ends, there is a height difference, and the height difference becomes more obvious as the stacking height changes, as Figure 9 shown. Finally, when the folding box cardboard is in the initial state, as Figure 10 shown, the main body sub-boards 200 are inclined relative to the main cardboard 100 (θ and β in the figure are the angles between the two main body sub-boards 200 on one side and the extension line of the main cardboard respectively). After the inclination degree is too large, when the folding box in step (4) is fed, the main body sub-boards 200 on both sides may not be effectively grabbed, and then the main body sub-boards 200 on both sides will collapse under the action of gravity after being grabbed. In this way, when discharging the material, the main body sub-boards 200 may be pressed under the main cardboard 100, or the main body sub-boards 200 may be directly bent when discharging the material, and finally the lining paper mounting for the leather case part of the folding box cannot be completed, resulting in defective products.

[0020] Based on this, the embodiment of the present invention proposes a method for mounting the lining paper of a folding box, Figure 1 which is the flow chart of the method of the present invention, as Figure 1 shown, and the method includes the following steps: Step S1. Material taking step: First, the material taking component 2 for taking the folding box cardboard moves to the material taking station. There is a storage bin 1 at the material taking station, and the folding box cardboard to be pasted with the inner lining paper is stacked in the storage bin 1. After the material taking component 2 moves to the material taking station, then the material taking component 2 descends, and the first vacuum suction cup 3 on the material taking component 2 adsorbs a folding box cardboard in the storage bin. Then, the adaptive adjustment mechanism 4 acts on the main body board 200 of the grabbed folding box cardboard, driving the main body board 200 to rotate upward around one side crease. Step S2. Material transferring step: After adjusting the main body board 200, the material taking component 2 continues to convey the folding box cardboard, and the main body board 200 maintains the adjusted state during the conveying process. Step S3. Inner lining paper pasting step: The folding box cardboard is conveyed into the leather case positioning device 11. The leather case positioning device 11 positions the folding box cardboard, and then the suction cup manipulator grabs the cardboard on the leather case positioning device 11 and pastes its leather case part with the face paper on one side conveyor belt to complete the pasting of the inner lining paper.

[0021] It should be noted that the leather case positioning device 11 can use the existing machines currently, which does not belong to the innovation and improvement of the present invention, so it will not be elaborated in detail here.

[0022] In the embodiment depicted in the present invention, in step S2, the material taking component 2 continues to convey the folding box cardboard to the material receiving station and places the folding box cardboard on the material receiving device 6 at the material receiving station. Then, the material receiving device 6 continues to convey the folding box cardboard into the leather case positioning device 11. It can be understood that the material receiving device 6 is usually a belt conveyor.

[0023] In the embodiment depicted in the present invention, in step S1, for the adjustment of the main body board 200, the specific process is: the adaptive adjustment mechanism 4 drives the main body board 200 to rotate upward around one side crease.

[0024] More specifically, the adaptive adjustment mechanism 4 rotates in the vertical plane to drive the main body board 200 to rotate upward around one side crease.

[0025] As a preferred embodiment, the adaptive adjustment mechanism 4 includes a second vacuum chuck 41, and the second vacuum chuck 41 is rotatably mounted on the material taking assembly 2; the adaptive adjustment mechanism 4 rotates in the vertical plane to adjust the angle of its adsorption surface to fit the surface of the inclined main body splint 200, and then adsorbs and grabs the main body splint 200. After the second vacuum chuck 41 adsorbs and grabs the inclined main body splint 200, the second vacuum chuck 41 rotates in the reverse direction to drive the main body splint 200 to rotate upward around a side crease, adjusting the inclination degree of the main body splint 200 until the included angle between it and the extension line of the main cardboard meets the requirements.

[0026] In the embodiment depicted in the present invention, for the adjustment of the inclination degree of the two side main body splints 200, the adaptive adjustment mechanism 4 drives the main body splint 200 to rotate upward around a side crease, and can adjust the main body splint 200 to one of the following three states: (1) Driving the main body splint 200 to rotate upward around a side crease until the main body splint 200 and the main cardboard 100 are in the same plane (as Figure 11 shown); (2) Driving the main body splint 200 to rotate upward around a side crease, and the main body splint 200 rotates to be above the main cardboard 100 (as Figure 12 shown, the main body splint 200 is in an upwardly warped state); (3) Driving the main body splint 200 to rotate upward around a side crease, and the main body splint 200 still remains below the main cardboard 100 (as Figure 10 shown).

[0027] It should be noted that for the first case, when the main body splint 200 rotates upward to be in the same plane as the main cardboard 100, the included angle between the main body splint 200 and the extension line of the main cardboard is 0°.

[0028] For the second case, when the main body splint 200 is driven to rotate upward to be above the main cardboard 100, there will be no situation where the main body splint 200 is pressed below the main cardboard 100 during material feeding. However, in order to ensure the flatness of the entire cardboard during material feeding, usually after the main body splint 200 rotates upward, the included angle between it and the extension line of the main cardboard is not too large (that is, the upward warping amplitude is small), so that the upwardly inclined main body splint can also reset to be in the same plane as the main cardboard 100 under its own weight.

[0029] For the third case, after the adaptive adjustment mechanism 4 drives the main body splint 200 to rotate upward, it still remains below the main cardboard 100, but the included angle between the main body splint 200 and the extension line of the main cardboard meets the requirements for material feeding (that is, the θ and β angles are small), and the main body splint 200 will not be pressed below the main cardboard 100 or be bent. At this time, the included angle between the two is generally between 0 - 45°.

[0030] That is to say, in the embodiments depicted in the present invention, for the adjustment of the two-side main board sub-board 200, it is possible to directly adjust the main board sub-board 200 to be horizontal with the main cardboard 100, or it can be adjusted so that the angle between the main board sub-board 200 and the extension line of the main cardboard does not exceed a preset angle threshold range, and it is not necessary to adjust it to be horizontal with the main cardboard 100. As long as it is within the angle threshold range, during feeding, the main board sub-board 200 generally will not be pressed under the main cardboard 100 or be bent.

[0031] Embodiment 2 An embodiment of the present invention provides a feeding device applicable to a folding box paper pasting machine. The feeding device is used to implement the above-mentioned method for pasting the inner lining paper of a folding box. For the structure of the feeding device, please refer to the attached Figures 2 - 4 As shown in the figure, the feeding device includes a material taking component 2 slidably arranged on the frame. The material taking component 2 can be driven to reciprocate horizontally between a material taking position and a material discharging position; a storage bin 1 for storing folding box cardboard is arranged at the material taking position, and a receiving device 6 for transferring the folding box cardboard is arranged at the material discharging position; the material taking component 2 includes a suction cup frame cross beam 21, a suction cup frame 22 and a lifting mechanism 23. The suction cup frame cross beam 21 is slidably connected to both sides of the frame. The suction cup frame 22 is assembled on the suction cup frame cross beam 21 through the lifting mechanism 23. A first vacuum suction cup 3 for adsorbing the folding box cardboard and an adaptive adjustment mechanism 4 for driving the main board sub-board 200 of the folding box cardboard to rotate upward around one side crease are arranged on the suction cup frame 22. In the embodiments depicted in the present invention, the working process and principle of the feeding device are as follows: The folding box cardboard to be fed is stacked in the storage bin. The stacking schematic diagram of the folding box cardboard is as Figure 9As shown, the whole material taking assembly 2 first moves to the material taking position where the magazine is located. Then, the lifting mechanism 23 on the cross beam 21 of the suction cup holder operates to drive the suction cup holder 22 to descend, driving the first vacuum suction cup to descend. The first vacuum suction cup 3 adsorbs and grabs a folded box cardboard in the magazine. Then, the adaptive adjustment mechanism 4 on the suction cup holder acts on the main body sub - boards on the front and back sides of the main cardboard, driving the main body sub - boards to rotate around a crease on one side. Finally, the main body sub - board 200 rotates to the same horizontal height as the middle main cardboard 100, or rotates to an angle within the angle threshold range between it and the extension line of the main cardboard (the inclined main body sub - board 200 is straightened to horizontal by the adaptive adjustment mechanism 4, or the angle between it and the extension line of the main cardboard does not exceed the threshold range). Then, the lifting mechanism 23 operates to drive the suction cup holder 22 to move upward. Then, the cross beam 21 of the suction cup holder horizontally moves to the discharging position where the material receiving device 6 is located. The lifting mechanism 23 drives the suction cup holder 22 to descend again. The material taking assembly 2 places the flattened folded box cardboard on the material receiving device 6, and the material receiving device 6 conveys it to the next process to paste the face paper on the other side of the leather case part of the folded box cardboard.

[0032] For the angle adjustment of the two side main body sub - boards 200, the adaptive adjustment mechanism 4 drives the main body sub - board 200 to rotate upward around a crease on one side, and can adjust the main body sub - board 200 to one of the following three states: (1) Driving the main body sub - board 200 to rotate upward around a crease on one side until the main body sub - board 200 is in the same plane as the main cardboard 100 (as Figure 11 shown); (2) Driving the main body sub - board 200 to rotate upward around a crease on one side, and the main body sub - board 200 rotates to be above the main cardboard 100 (as Figure 12 shown, the main body sub - board 200 is in an upward - tilted state); (3) Driving the main body sub - board 200 to rotate upward around a crease on one side, and the main body sub - board 200 still remains below the main cardboard 100 (as Figure 10 shown).

[0033] It should be noted that for the first case, when the main body sub - board 200 rotates upward to be in the same plane as the main cardboard 100, the angle between the main body sub - board 200 and the extension line of the main cardboard is 0°.

[0034] For the second case, when the main body sub - board 200 is driven to rotate upward to be above the main cardboard 100, the situation where the main body sub - board 200 is pressed below the main cardboard 100 during discharging will not occur. However, to ensure the flatness of the whole cardboard during discharging, usually after the main body sub - board 200 rotates upward, the angle between it and the extension line of the main cardboard is not too large (that is, the upward - tilting amplitude is small), so that the upward - tilted main body sub - board can also reset to be in the same plane as the main cardboard 100 under the action of its own weight.

[0035] For the third case, after the adaptive adjustment mechanism 4 drives the main body sub-board 200 to rotate upward, it is still located below the main cardboard 100. However, the angle between the main body sub-board 200 and the extension line of the main cardboard satisfies the feeding condition, and the main body sub-board 200 will not be pressed under the main cardboard 100 or bent. At this time, the angle between the two is generally between 0-45°.

[0036] That is to say, in this embodiment, for the adjustment of the two-side main body sub-boards 200, it can be directly adjusted to keep the main body sub-board 200 horizontal with the main cardboard 100, or it can be adjusted so that the angle between the main body sub-board 200 and the extension line of the main cardboard does not exceed the preset angle threshold range, rather than necessarily being adjusted to be horizontal with the main cardboard 100. As long as it is within the angle threshold range, during feeding, the main body sub-board 200 generally will not be pressed under the main cardboard 100 or bent.

[0037] Since the adaptive adjustment mechanism 4 has adjusted the inclination of the main body sub-boards 200 on both sides of the main cardboard 100 in advance, the main body sub-boards 200 of the folding box cardboard transferred to the receiving device 6 will not be pressed under the main cardboard 100 or bent. Finally, the shell part of the folding box cardboard can smoothly complete the lining of the inner paper.

[0038] It is worth mentioning that a horizontal driving mechanism for driving the suction cup frame crossbeam 21 to reciprocate horizontally between the material bin 1 and the receiving device 6 is usually provided on the frame. The horizontal driving mechanism is usually two groups of pulley assemblies symmetrically arranged on both sides of the frame. The two ends of the suction cup frame crossbeam 23 are respectively connected to the pulley assemblies on both sides of the frame. Generally, the two pulley assemblies are also connected to the horizontal driving power source through a synchronous transmission shaft to ensure the synchronism of their movements. Driven by the pulley assemblies that move synchronously on both sides, the suction cup frame crossbeam 21 reciprocates horizontally between the material taking position and the material placing position.

[0039] It can be understood that the horizontal driving power source is usually components such as a servo motor and a hydraulic motor. The present invention does not limit the specific structural form of the horizontal driving power source, as long as it can drive the pulley assembly to act.

[0040] Moreover, in addition to using pulley assemblies, the horizontal driving mechanism can also be a sprocket chain assembly. Pulley assemblies and sprocket chain assemblies are common transmission components in the art and belong to well-known technologies, so no further detailed description will be given here.

[0041] Furthermore, the lifting mechanism 23 is usually a lifting cylinder or an electric cylinder. The lifting mechanism 23 is fixed on the suction cup frame crossbeam 21, and its movable end is connected to the suction cup frame 22 to drive the suction cup frame 22 to reciprocate up and down.

[0042] Further, the lifting mechanism 23 can also be a slide rail and a sliding table. The slide rail and the sliding table are fixed on the cross beam 21 of the suction cup holder. The suction cup holder 22 is connected to the movable end of the slide rail and the sliding table. Driven by the slide rail and the sliding table, it moves up and down reciprocally.

[0043] The present invention does not limit the specific structural form of the lifting mechanism 23, as long as it can drive the suction cup holder 22 to lift. And the lifting mechanism 23 belongs to well-known technology, so it will not be elaborated in detail here.

[0044] Embodiment 3 This embodiment discloses a feeding device applicable to a folding box pasting machine. On the basis of Embodiment 2, as Figures 4 - 6 shown, the adaptive adjustment mechanism 4 includes a second vacuum suction cup 41 rotatably arranged on the suction cup holder 22. The second vacuum suction cup 41 can rotate in a vertical plane to adjust the angle of its suction surface.

[0045] During the adsorption and material grasping process, first, the first vacuum suction cup 3 on the suction cup holder 22 fits and adsorbs on the main cardboard 100 in the middle of the folding box and the side wings 300 on the left and right sides. At the same time, the second vacuum suction cup 41 rotates in the vertical plane towards the direction where the main cardboard 100 is located (the angle of its suction surface changes continuously during the rotation) until the suction surface of the second vacuum suction cup 41 completely fits the surface of the main cardboard 200. The second vacuum suction cup 41 adsorbs the main cardboard 200. Then the second vacuum suction cup 41 rotates in the reverse direction, driving the main cardboard 200 to rotate upward around the corresponding crease. Finally, the inclined main cardboard 200 is pulled and stretched by the second vacuum suction cup 41 until the shell part of the entire folding box cardboard is roughly flattened, and the second vacuum suction cup 41 stops rotating. Then the first vacuum suction cup 3 and the second vacuum suction cup 41 always adsorb the material, and driven by the lifting mechanism 23 and the cross beam 21 of the suction cup holder, the grasped folding box cardboard is conveyed to the receiving device 6.

[0046] Therefore, in the embodiment described in the present invention, the adaptive adjustment mechanism 4 not only realizes the effect of adjusting the inclination angle of the main cardboard 200, but also realizes the effect of adsorption and material grasping, greatly simplifying the complexity of the structure. The second vacuum suction cup 41 rotates in the vertical plane, and can continuously adjust and change the angle of its suction surface, so that the angle of the suction surface finally matches the inclination angle of the main cardboard 200. The suction surface of the suction cup can completely fit the surface of the main cardboard 200 and firmly adsorb the main cardboard 200. Then it continues to adjust the inclination degree of the main cardboard 200. During the subsequent movement, the folding box cardboard can enter the next process with good flatness.

[0047] As Figure 6As shown, there are usually two main sub-boards on one side of the folding box cardboard. Therefore, the second vacuum suction cup 41 is usually composed of a first vacuum suction cup and a second vacuum suction cup, and the two suction cups respectively adsorb and tow the two main sub-boards 200. The specific structure is as follows: The first vacuum suction cup is assembled on the suction cup frame 22 through the first vacuum suction cup mounting seat. One end of the first vacuum suction cup mounting seat is rotatably connected to the suction cup frame 22, and the other end is rotatably connected to the movable end of the first air cylinder on the suction cup frame 22. The second vacuum suction cup is fixed on the second vacuum suction cup mounting seat. The second vacuum suction cup mounting seat is respectively rotatably connected to the first vacuum suction cup mounting seat and the movable end of the second air cylinder. The second air cylinder is fixed on the first vacuum suction cup mounting seat.

[0048] When the first air cylinder operates, the first vacuum suction cup and the second vacuum suction cup rotate synchronously around the hinge point between the first vacuum suction cup mounting seat and the suction cup frame 22. Further, under the driving action of the second air cylinder, the second vacuum suction cup also rotates around the hinge point with the first vacuum suction cup mounting seat. Therefore, the adsorption surfaces of the first vacuum suction cup and the second vacuum suction cup can have different inclinations. For the stacked folding box cardboard, the two main sub-boards 200 on the same side have different inclination angles. Therefore, it is the best effect to adsorb and tow the sub-boards with two vacuum suction cups having different inclination angles. The first vacuum suction cup adsorbs the first main sub-board connected to the main cardboard, and the second vacuum suction cup adsorbs the outermost main sub-board.

[0049] Embodiment 4 This embodiment discloses a feeding device applicable to a folding box pasting machine. On the basis of the above Embodiment 2 or Embodiment 3, refer to the attached Figure 1 、 Figure 2 and Figure 7 As shown, a paper feeding assembly 5 is arranged in the magazine 1. The paper feeding assembly 5 includes a main lifting mechanism 51 arranged on the magazine frame body and a paper table 52 assembled on the main lifting mechanism 51. The main lifting mechanism 51 drives the paper table 52 to move up and down reciprocally. A plurality of folding box cardboards are stacked and placed on the paper table 52.

[0050] Further, refer to the attached Figure 7 As shown, the main lifting mechanism 51 includes a main lifting power source 511 fixed on the magazine frame body and a main transmission unit 512 connected to the main lifting power source 511. The main transmission unit 512 has two sets and is symmetrically distributed on the left and right sides of the paper table 52. Driven by the main lifting power source 511, the main transmission unit 512 drives the paper table 52 to move up and down reciprocally.

[0051] Furthermore, the main drive unit 512 can be a sprocket chain assembly or a pulley assembly. However, considering the internal space of the equipment and the magnitude of the force, a sprocket chain assembly is generally selected. Two sets of first sprocket chain assemblies are symmetrically distributed on the left and right sides of the material table 52, and an additional main lifting sprocket is provided on the rotating shaft of each sprocket. A main lifting chain 12 is engaged with the lifting sprocket. One end of the main lifting chain 12 is connected to the material table 52, and the other end is a free end. In order to prevent the chain from swaying randomly, a counterweight is arranged at the free end of the main lifting chain 12. The structures of the sprocket chain assembly and the pulley assembly are both well-known technologies and will not be elaborated in detail here.

[0052] It can be understood that the two sets of sprocket chain assemblies distributed on the left and right sides of the material table 52 are usually connected as a whole by a synchronous transmission shaft and installed on the silo frame body. Then, one end of the synchronous transmission shaft is connected to the main lifting power source 511 to drive the sprocket chain assemblies on both sides to move synchronously, ensuring the consistency of their movements and further ensuring the stability of the lifting of the material table 52.

[0053] The main lifting power source 511 operates to drive the synchronous transmission shaft to rotate. The synchronous transmission shaft drives the sprocket chain assemblies on both sides to rotate synchronously. The lifting sprockets provided on the sprocket chain assemblies move together with the sprocket chain assemblies. Finally, the lifting chain on the lifting sprocket drives the material table 52 connected thereto to reciprocate up and down.

[0054] In the embodiment depicted in the present invention, in order to ensure the stability of the up and down movement of the material table, a guiding device 13 is provided on the silo frame body. The guiding device 13 consists of a guiding wheel and a guiding rod. The two ends of the guiding rod are fixed to the upper and lower ends of the silo frame body, and the guiding wheel is assembled on the material table. The guiding rod is in sliding fit with the groove of the guiding wheel.

[0055] In the embodiment depicted in the present invention, the main lifting power source 511 is usually components such as a servo motor and a hydraulic motor. The present invention does not limit the specific structural form of the main lifting power source 511, as long as it can drive the main drive unit 512 to operate.

[0056] Example 5 This embodiment discloses a feeding device applicable to a folding box pasting machine. On the basis of Embodiment 4, in order to achieve the effect of feeding paper without stopping the machine, a secondary lifting mechanism 7 and a material transfer mechanism 8 are further provided in the bin 1. The secondary lifting mechanism 7 includes a secondary lifting power source 71 arranged on the bin frame body and a secondary transmission unit 72 connected to the secondary lifting power source 71. The secondary transmission unit 72 is provided in two sets, symmetrically arranged on the left and right sides of the material table 52. The material transfer mechanism 8 is connected to the secondary transmission unit 72. The main transmission unit 512 drives the material table 52 to rise. When the material table 52 and the material transfer mechanism 8 are on the same horizontal line, the secondary lifting power source 71 drives the secondary transmission unit 72 to act, driving the material transfer mechanism 8 to rise, and transferring the material on the material table 52 to the material transfer mechanism 8.

[0057] In the embodiment depicted in the present invention, the structural form of the secondary transmission unit 72 is basically the same as that of the main transmission unit 512. That is, the secondary transmission unit 72 can be a sprocket chain assembly or a pulley assembly. However, considering the internal space of the equipment and the magnitude of the force, it is generally selected as a sprocket chain assembly. Two sets of second sprocket chain assemblies are symmetrically distributed on the left and right sides of the material table 52, and an additional secondary lifting sprocket is provided on the rotating shaft of each sprocket. A secondary lifting chain 13 is engaged with the secondary lifting sprocket. One end of the secondary lifting chain 13 is connected to the material transfer mechanism 8, and the other end is a free end. Also, in order to prevent the secondary lifting chain 13 from swaying randomly, a counterweight block is arranged at the free end of the secondary lifting chain 13.

[0058] Further, referring to the attached Figure 7 As shown, the material transfer mechanism 8 includes a fork 81 and a fork support frame 82. The fork support frame 82 is composed of two support beams arranged oppositely. The fork support frame 82 is respectively connected to the secondary transmission units 72 on both sides. A tray 9 is arranged on the material table 52. The folding box cardboard to be pasted is stacked on the tray 9. A strip-shaped groove 10 for cooperating with the fork 81 is provided on the upper support surface of the tray 9. The fork support frame 82 is located directly above the tray 9, and the horizontal projection of the tray 9 is within the horizontal projection of the fork support frame 82. The main transmission unit 512 acts to drive the material table 52 to rise, and the tray on the material table 52 rises together. When it rises until the tray 9 passes through the inside of the fork support frame 82 and the bottom of the strip-shaped groove 10 on the tray 9 is on the same horizontal line as the upper surface of the fork support frame 82, the fork 81 is pushed into the strip-shaped groove 10, and both ends of the fork 81 are supported on the fork support frame 82. Then the secondary lifting power source 71 drives the secondary transmission unit 72 to act, driving the fork support frame 82 to rise.

[0059] In the embodiments depicted in the present invention, the auxiliary lifting power source 71 is generally components such as a servo motor, a hydraulic motor, etc. The present invention does not limit the specific structural form of the main lifting power source 511, as long as it can drive the auxiliary transmission unit 72 to act.

[0060] In the embodiments depicted in the present invention, the fork 81 is inserted into the strip-shaped groove 10 of the tray 9 manually or by a manipulator.

[0061] In the embodiments depicted in the present invention, the basic working principle of the entire paper loading assembly 5 is as follows: During loading, a worker or a manipulator first stacks the folding box cardboard to be pasted on the upper support surface of the pallet 9, and then uses a handling tool such as a forklift to transport the pallet 9 to the storage bin 1, and then transports the pallet 9 to the material table 52. Then the main lifting mechanism 51 operates, driving the material table 52 and the pallet 9 on the material table 52 to rise together through the main lifting chain 12. When the bottom of the strip-shaped groove 10 provided on the upper support surface of the pallet 9 is at the same horizontal line as the upper surface of the forklift support frame 82, the main lifting mechanism 51 stops operating. At this time, the forklift 81 is pushed into the strip-shaped groove from one side, and the two ends of the forklift 81 are supported on the forklift support frame 82. Then the main lifting mechanism can move in the reverse direction, driving the material table 52 and the pallet 9 to descend together through the main lifting chain 12. After the pallet 9 descends, the forklift 81 supports the stacked folding box cardboard on the pallet 9. Then the auxiliary lifting mechanism 7 operates, lifting the forklift support frame 82 and the forklift 81 upward through the auxiliary lifting chain 13. After that, the suction cup frame crossbeam 21 reciprocates between the material taking position and the material placing position driven by the belt pulley assemblies on both sides. When moving to the material taking position, the lifting mechanism 23 drives the entire suction cup frame 22 to descend, and the suction cup frame 22 extends into the storage bin 1, and then adsorbs and grabs a folding box cardboard to be pasted on the pallet 9. Specifically, during adsorption and material grabbing, the first vacuum suction cup 3 fits and adsorbs on the middle main cardboard 100 of the folding box and the side wings 300 on both left and right sides. At the same time, the second vacuum suction cup 41 rotates in the vertical plane towards the direction where the main body dividing board 200 is located until the adsorption surface of the second vacuum suction cup 41 is completely attached to the surface of the main body dividing board 200. The second vacuum suction cup 41 adsorbs the main body dividing board 200, and then the second vacuum suction cup 41 rotates in the reverse direction, driving the main body dividing board 200 to rotate upward around the corresponding crease, pulling and stretching the inclined main body dividing board 200 to be approximately in the same plane as the middle main cardboard 100. The adaptive adjustment mechanism 4 levels the shell part of the folding box cardboard; the first vacuum suction cup 3 and the second vacuum suction cup 41 adsorb the folding box cardboard at the same time, the lifting mechanism 23 drives the suction cup frame 22 to rise, and then the suction cup frame crossbeam 21 drives the suction cup frame 22 to move to the material placing position. Then the lifting mechanism 23 operates again, and the suction cup frame 22 descends. The first vacuum suction cup 3 and the second vacuum suction cup 41 place the grabbed folding box cardboard on the receiving device 6. Then, driven by the suction cup frame crossbeam 21 again, the material taking assembly resets to the material taking position, and the auxiliary lifting chain 13 drives the forklift 81 and the forklift support frame 82 to rise to a certain position to facilitate the vacuum suction cup to grab the folding box cardboard on the forklift 81, and the above actions are repeated in a cycle to complete the loading.

[0062] After the material table 52 descends back to the initial position, the empty pallet 9 on the material table 52 is removed and replaced with a new pallet loaded with folding box cardboard to be pasted, and then the above actions are repeated to achieve the effect of continuous loading without stopping the machine.

[0063] It should be noted that after all the cardboard supported on the fork 81 is taken away, the fork 81 is removed, and then the fork support frame 82 descends and resets. The newly installed tray 9 on the material table 52 continues to rise until it reaches the specified height, and then the cardboard is transferred to the material transfer mechanism 8 again.

[0064] It can be understood that for the transfer of the folding box cardboard, the cardboard can be completely transferred to the fork 81 at the beginning, and then the vacuum suction cup starts to adsorb and grab the cardboard on the fork 81. It can also be that the vacuum suction cup first grabs the cardboard on the tray 9 at the beginning. When a certain amount is grabbed and the tray just rises to the position where the bottom of the strip-shaped groove 10 and the upper surface of the fork support frame 82 are at the same horizontal height, the remaining cardboard is transferred to the fork 81, and then the material table 52 and the tray 9 together descend, and a new tray is replaced on the material table 52. Therefore, the specific timing of material transfer can be set according to needs, and the present invention does not make specific limitations on this part of the content. The above methods can all achieve the effect of feeding without stopping the machine.

[0065] Embodiment 6 This embodiment discloses a folding box pasting machine, and the pasting machine is used to implement the method for pasting the inner lining paper recorded in Embodiment 1. Referring to the attached Figures 1 - 2 As shown in the figure, the pasting machine includes a leather case positioning device 11 and the feeding device recorded in Embodiments 2-5 above. A receiving device 6 is arranged between the feeding device and the leather case positioning device 11. The feeding device transports the folding box cardboard to be pasted with the inner lining paper onto the receiving device 6, and the receiving device 6 further transports the folding box cardboard onto the leather case positioning device 11. The leather case positioning device 11 positions the folding box cardboard to the specified position. Then, the suction manipulator on one side of the leather case positioning device 11 grabs the cardboard on the positioning machine, and a conveyor belt is arranged on the other side of the suction manipulator. The face paper is transported on the conveyor belt. The suction manipulator pastes the leather case part of the sucked cardboard on the face paper according to the position of the face paper on the conveyor belt, and finally completes the pasting of the inner lining paper on the folding box cardboard.

[0066] It can be understood that the receiving device 6 is usually a belt conveyor, and the leather case positioning device 11 can use the existing machines. The above receiving device 6 and leather case positioning device 11 do not belong to the innovation and improvement of the present invention, so no detailed description will be given here.

[0067] The above is only a preferred embodiment of the present invention, and does not make any form of limitation to the present invention. Any simple modification and equivalent change made to the above embodiments according to the technical essence of the present invention all fall within the protection scope of the present invention.

Claims

1. A method for mounting lining paper on a folding box, characterized in that: The following steps are involved: Step S1. The material picking assembly moves to the material picking station, and then the material picking assembly descends, the first vacuum suction cup absorbs the folding box paperboard, and then the adaptive adjustment mechanism acts on the main dividing plate of the folding box paperboard, driving the main dividing plate to rotate upward around one side fold; Step S2. The folding boxboard is further conveyed; Step S3. The folding box cardboard is conveyed to the skin positioning device, and then the suction cup robot grabs the cardboard on the skin positioning device and fits its skin part with the surface paper on one side of the conveyor belt to complete the mounting of the lining paper.

2. A method for folding box lining paper according to claim 1, characterized in that: In step S2, the material taking component continues to convey the folding box board to the material receiving station, and places the folding box board on the material receiving device at the material receiving station.

3. A method for folding box lining paper according to claim 1, characterized in that: In step S3, the receiving device conveys the folding box board to the skin positioning device.

4. A method for folding box lining paper according to claim 1, characterized in that: In step S1, the adaptive adjustment mechanism rotates in a vertical plane to drive the main body panel to rotate upward around a fold on one side.

5. A method for folding box lining paper according to claim 1, characterized in that: In step S1, the adaptive adjustment mechanism rotates in a vertical plane, adjusts the angle of the adsorption surface to fit with the surface of the main split plate, adsorbs and grabs the main split plate, and then rotates in the opposite direction to drive the main split plate to rotate upward around a fold on one side.

6. A method for folding box lining paper according to claim 1, characterized in that: A material bin is provided at the material taking station, and folding boxboards to be mounted with lining paper are stacked in the material bin.

Images