Full-automatic traceless heaven and earth cover box forming machine and heaven and earth cover box forming process thereof

Abstract

The invention relates to the field of box body processing equipment, and discloses a full-automatic traceless top and bottom cover box forming machine and a top and bottom cover box forming process thereof.The full-automatic traceless top and bottom cover box forming machine comprises a paper feeding device, a transverse edge folding device, a connecting steering device and a top and bottom cover forming device, the device further comprises a gluing mechanism and a paperboard conveying device. The heaven and earth cover forming device comprises a vertical forming channel and a forming pressing die, the left side and the right side of the vertical forming channel are provided with guiding pieces allowing the left side face and the right side face of a folded paperboard to vertically enter the vertical forming channel, and the front side and the rear side of the vertical forming channel are provided with side baffles used for erecting supporting plates on the front side and the rear side of the paperboard correspondingly. A brand new box forming mode is adopted, a paperboard only needs to be mounted in advance, full-automatic machining forming from the paperboard to the heaven and earth cover box is achieved, and rapid, accurate, efficient and automatic completion of the heaven and earth cover box is achieved.

Description

Technical Field

[0001] The invention relates to the field of box body processing equipment, and in particular to a full-automatic seamless top and bottom cover box forming machine and a forming process of the top and bottom cover box. Background Art

[0002] In the traditional process of making the top and bottom lid box, especially the top and bottom lid paper box, it is usually necessary to form the inner gray board box by splicing or other methods, and then place the facial paper under the gray board box for bonding. In the production method of the prior art top and bottom lid box, the gray board and facial paper are first slotted and folded to form a blank box, and then the blank box and facial paper are transported separately, and glue is sprayed on the facial paper over a large area, and then the facial paper is wrapped on the outside of the blank box, and the box is positioned in the box pressing device to press the facial paper to fit the blank box, and then multiple vertical edge pressing, ear folding, and bubble pressing procedures are performed. In the traditional production process, the gray board after die cutting must be formed with corners by manual or semi-automatic auxiliary equipment, otherwise the subsequent process production cannot be carried out. For this reason, the enterprise needs to form the gray board with corners in advance, which leads to low production efficiency. The four corners are bonded, which does not meet the current global environmental trend of restricting the use of plastics, and it is difficult to pick out the transparent tape during the recycling of discarded packaging boxes, resulting in increased social recycling costs. At the same time, since the corners of the blank box are partially fitted instead of the entire blank box, there is a height difference. After the top and bottom lid boxes are formed, traces of tape can be vaguely seen on the sides of the four sides, affecting the aesthetics of the gift box packaging.

[0003] For example, the Chinese invention patent with publication number CN214294679U and titled "A kind of automatic forming equipment for top and bottom lid boxes" discloses another method for forming top and bottom lid boxes, as shown in paragraphs 30-33 of its specification, "The automatic forming equipment for top and bottom lid boxes comprises a cardboard conveying device and a slide rail arranged above the cardboard conveying device, a plurality of rotating arms are slidably arranged on the slide rail, and a suction and pressing device for sucking and forming the cardboard is arranged on the rotating arm, and the suction and pressing device is controlled to move by the rotating arm on the slide rail and move at any angle, position and height, and then the suction and pressing device sucks the cardboard and folds the cardboard into a box blank." This method of suction and pressing device requires additional positioning of the corner parts, and adding negative pressure equipment will increase the production cost and operation cost of the equipment. Although the problem of manual work required for corner pasting is solved, its production efficiency will also be relatively slow.

[0004] Therefore, a top and bottom cover forming machine is needed, which can directly process cardboard into top and bottom cover boxes without going through the steps of forming blank boxes, thereby saving labor, improving processing efficiency, and ensuring the strength of the formed box body. Summary of the invention

[0005] The present invention aims at the disadvantages of the prior art and provides a fully automatic seamless top and bottom cover box forming machine and a forming process of the top and bottom cover box.

[0006] To solve the above technical problems, the present invention is solved by the following technical solutions: The fully automatic seamless top and bottom lid box forming machine comprises a paper feeding device for outputting a cardboard on which a gray board layer and a surface paper layer have been mounted, a transverse folding device, a connecting steering device and a top and bottom lid forming device, and also comprises a gluing mechanism and a cardboard conveying device, wherein the gluing mechanism is arranged on a cardboard conveying path; the transverse folding device is used to fold the left and right folding plates of the cardboard and the side supporting plates to form side plates; The cardboard conveying device comprises a transverse conveying mechanism and a longitudinal conveying mechanism at the connection with the steering device. The inlet end of the transverse conveying mechanism is connected with the transverse folding device for conveying, and the outlet end of the longitudinal conveying mechanism is connected with the top and bottom cover forming device for conveying; The top and bottom cover forming device comprises a vertical forming channel, a forming die is arranged above the vertical forming channel, the forming die can move up and down to press the cardboard into the vertical forming channel for forming, the left and right sides of the vertical forming channel are provided with guides for the left and right sides of the folded cardboard to stand upright and enter the vertical forming channel, the front and rear sides of the vertical forming channel are respectively provided with side baffles for erecting the front and rear side support plates of the cardboard, the front and rear sides of the vertical forming channel are also respectively provided with side folding plates, the side folding plates are connected with a side folding power source that can drive them to move forward and backward, and are used to fold the front and rear folding plates of the cardboard toward the inside of the side support plate, the horizontal position of the side folding plate is lower than the horizontal position of the upper edge of the side baffle, and the top height of the guide is higher than the top of the side baffle. The side folding of the top and bottom cover can be made sequential, the folded side plates are first erected together with the folding tongues on both sides, so that the other side support plates on the front and rear sides are wrapped outside the folding tongues to achieve fixation and then wrapped inward to form a limit. The side baffle has two functions. On the one hand, it guides the folding tongue to turn inward, and on the other hand, it guides the front and rear side support plates and side folding plates to stand upright.

[0007] Preferably, a correction device is arranged between the paper feeding device and the transverse folding device, and the correction device includes a plurality of correction wheels arranged on the left and right sides along the conveying direction of the cardboard, and a correction baffle plate outside the correction wheel for limiting the position of the cardboard; the transverse folding device includes a guide folding member, which supports the folding plate of the cardboard and folds the folding plate inward by gradually forming a guide with higher outside and lower inside along the conveying direction, and the guide folding member is a guide rod or a belt, and the guide folding member is connected to an adjustment member for adjusting its left and right position.

[0008] Preferably, the transverse conveying mechanism and the longitudinal conveying mechanism respectively have transverse connection stations and longitudinal connection stations that are staggered and not located at the same horizontal plane, and the connecting steering device includes a longitudinal blocker and a lifting suction cup, the longitudinal blocker is used to prevent the cardboard on the transverse connection station from continuing to be transported transversely, and the lifting suction cup can be lifted and lowered back and forth between the transverse connection station and the longitudinal connection station, and is used to suck the cardboard on the transverse connection station to the longitudinal connection station without horizontal deviation. This type of transfer can avoid the deviation that occurs when the cardboard falls from top to bottom, so that the box body molding accuracy is higher.

[0009] As a preferred embodiment, the connecting and steering device is also provided with a transverse limit baffle, which is used to limit the cardboard with the transverse folded edge on the transverse conveying mechanism; the higher one of the transverse conveying mechanism and the longitudinal conveying mechanism includes a conveying belt 1 on the left and right sides, a pressure wheel is arranged above the conveying belt 1, the transverse limit baffle can be moved horizontally left and right and is directly opposite to the top of the conveying belt 1, and the lifting suction cup is located between the conveying belt 1 on the left and right sides; the connecting and steering device includes a mounting frame on the left and right sides, a synchronous wheel is arranged on the mounting frame, a set of conveying belts is arranged on the synchronous wheel for conveying cardboard, the synchronous wheel is connected to a lateral moving force source, which is used to adjust the position of the left and right conveying belts 1, and is used to make way for the longitudinal lifting of the cardboard, and the lower one of the transverse conveying mechanism and the longitudinal conveying mechanism is a belt or chain conveyor. This method can also adapt to the processing of cardboards of different sizes, so as to form top and bottom lid boxes of different specifications. The higher one adopts the conveying of both sides to facilitate making way.

[0010] Preferably, the cardboard conveying device also includes a transverse conveying belt and a longitudinal conveying belt, both of which are provided with air nozzles connected to a negative pressure source. The transverse conveying belt is arranged on the inlet side of the transverse folding device, and the longitudinal conveying belt connects the longitudinal conveying mechanism with the top and bottom cover forming device.

[0011] Preferably, the gluing mechanism includes a first gluing device and a second gluing device, both of which include a gluing member, the first gluing device is provided on a glue roller in front of the gluing member, the first gluing device is provided above the transverse conveying belt, and the second gluing device is provided above the longitudinal conveying belt; the gluing mechanism also includes a third gluing device, the third gluing device is used to gluing the folded ear portion of the paperboard, and the third gluing device is also provided above the transverse conveying belt or the longitudinal conveying belt. Gluing the folded ear portion can increase the fixing strength of the box body, so that the formed box body is not easy to fall apart.

[0012] Preferably, the top and bottom cover forming device includes a manipulator for obtaining cardboard, a suction nozzle for adsorbing cardboard is provided at the bottom of the manipulator, and the cardboard to be formed is conveyed to the entrance of the vertical forming channel, an ear folding plate is provided above the guide member, the ear folding plate is attached to the top of the guide member and its inner surface is located inside the inner surface of the guide member, the upper ends of the guide member and the ear folding plate both have an arc-shaped guide surface turned outward from bottom to top, the upper surface of the side baffle is also in an arc shape turned outward from bottom to top, and the arc extension direction of the side baffle is perpendicular to the arc extension direction of the guide member and the ear folding plate. The ear folding plate can make the ears fold inward first, so that they are located inside the side support plates on the front and rear sides, which is convenient for subsequent fixing actions.

[0013] Preferably, the side baffle on the left side is respectively installed on the mounting plate one front and back, and the side baffle on the right side is respectively installed on the mounting plate two front and back, wherein at least one of the mounting plate one and the mounting plate two is installed on the adjusting roller one through a nut, the adjusting roller one is connected to an adjusting power source one for driving it to rotate, and the adjusting roller one cooperates with the nut thread to drive the mounting plate one or the mounting plate two connected thereto to move axially; the side folding plate is facing the middle position of the vertical forming channel, the side folding plate is installed on the mounting plate three, and the mounting plate three is installed on the adjusting roller two through a nut, the adjusting roller two is connected to an adjusting power source two for driving it to rotate, and the adjusting roller two cooperates with the nut thread to drive the mounting plate three connected thereto to move axially.

[0014] A forming process of a seamless top and bottom lid box, which is formed by a fully automatic seamless top and bottom lid box forming machine. The seamless top and bottom lid box includes a box body with an unfolded state and a boxed state. The box body includes a bottom plate. Side support plates 1 are arranged on the left and right sides of the bottom plate, and side support plates 2 are arranged at the front and back. The side support plates 1 and 2 extend to every two adjacent sides of the bottom plate. A folding plate 1 extends outside the side support plate 1, and a folding plate 2 extends outside the side support plate 2. The box body in the unfolded state has a face paper layer and a gray board layer that fit together. The inner side of the face paper layer is a face paper inner plane for fitting with the gray board layer, and the inner side of the gray board layer is a gray board inner plane. There is a height difference between the face paper inner plane and the gray board inner plane. The front and rear sides of the side support plate 1 are provided with folding ears, and the side support plate 2 adjacent thereto is provided with a limiting card slot, the shape and position of the limiting card slot are matched with the folding ears, the bottom of the limiting card slot is the surface paper layer, and the edge of the limiting card slot is formed on the gray board layer; The steps for forming the box body from the unfolded state are as follows: A. The box body is output by the paper feeding device and transported horizontally in the front-to-back direction. When the box body passes through the horizontal folding device, the left and right side support plates 1 are pressed and limited, and the folding plate 1 is folded inward along the folding line between the folding plate 1 and the side support plate 1, so that the gray board layer of the folding plate 1 is attached to the gray board layer of the side support plate 1, and the side plates are folded and bonded to form side plates; B. After the box body reaches the connecting and steering device, the left and right side plates are kept horizontally limited for lateral transportation and then turned into longitudinal transportation in the left and right directions through the connecting and steering device; C. The box body enters the top and bottom cover forming device. Before this, the limit slot is glued, and at least one of the inner sides of the second side support plate and the second folding plate is glued; The left and right side panels are turned up and kept upright under the guidance of the guide members, and under the guidance of the side baffles, the folding ears on the front and rear sides of each side support plate are folded inwards; Under the limitation of the side baffle, the front and rear side support plates 2 are folded upward along the fold line between the bottom plate and the side support plate 2, and the side support plate 2 is covered outside the folding ear, so that the folding ear is engaged in the limiting slot, and the outer surface of the folding ear is in contact with the surface paper layer under the limiting slot; D. The side folding power source drives the side folding plate to move inward, so as to fold the folding plate 2 inwardly toward the side support plate 2 until it is nearly horizontal. Then, the forming die presses downward to make the folding plate 2 turn down and fit against the inner wall of the side support plate 2, so that the gray plate layer of the folding plate 2 fits against the gray plate layer of the side support plate 2. When the gray paper and the facial tissue in a flat state are pasted together, there is no need to consider the situation where bubbles are generated due to inaccurate positioning. Therefore, there is no need for a three-dimensional box mold to press the facial tissue and the gray board blank box together. The present invention changes the traditional mode of limiting pasting boxes in five different directions into pasting of two horizontal planes. The process is simple, positioning is convenient, and the cost of equipment and molds is greatly reduced; when the box body in the unfolded state is folded, it is only necessary to spray glue to lock and fix the folding ears of the gray board with the limiting card slots, and to fit and fix the folding plates with the support plates; it is convenient and fast, with high molding efficiency, and can reduce manual work or equipment to paste the gray board into a blank box; there is no need for additional corner pasting positioning molding, but a side support folding ear is inserted into the card slot between the facial tissue of the adjacent side support plate and the gray board layer of the folding plate, and the inner and outer sides of the folding angle have vertical planes. The extrusion of the two inner and outer planes can fully lock the folding ears to achieve the reinforcement of the corners of the box body, prevent the box body from spreading outward, and make the box body more stable.

[0015] In step D, after the folding plate 1 is folded, the surfaces on both sides of the folding ear overlap with the gray plate layer of the folding plate 2 and the surface paper layer of the side support plate 2 respectively, and the surface paper layer of the limiting slot of the side support plate 2 is coated with glue to fix the folding ear and the surface paper layer of the side support plate 2.

[0016] The present invention has a significant technical effect due to the adoption of the above technical solution: it only needs to use other devices in advance to mount, die-cut, slot or score the paperboard, and the paperboard is transported and processed into the top and bottom cover boxes in a fully automated process, so that the top and bottom cover boxes can be completed quickly, accurately and efficiently, and are particularly suitable for large-scale production environments, and can significantly improve the degree of automation of paper box packaging; It adopts a brand-new box-forming method. When folding the box body, the left and right folding plates and side support plates are overlapped first, and then enter the forming device after being sprayed with glue and conveyed. It only needs to stand the folded left and right sides upright, fold the folding ears inward, and then turn up the front and rear folding plates to make the folding ears cooperate with the limit slots of the folding plates, and finally insert the side support plates inward to cover the folding ears, thereby forming a formed top and bottom lid box. Compared with the traditional box-forming method, it eliminates the process of manually sticking the gray board into a blank box. It is convenient and fast, has high forming efficiency, and can reduce manual work.

[0017] The formed top and bottom lid boxes do not require additional corner positioning and forming, but instead use a side support folding ear inserted into the slot between the face paper of the adjacent side support board and the gray board layer of the folding board. The inner and outer sides of the folding angle have vertical planes. The extrusion of the two inner and outer planes can fully lock the folding ear to reinforce the corners of the box body, forming a fixing force in different directions, making the box body more stable, the inner and outer planes smooth, and more beautiful. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the structure of the present invention; Figure 2 yes Figure 1 A partial enlarged view of middle A; Figure 3 It is a structural schematic diagram of the present invention from another angle; Figure 4 yes Figure 3 A partial enlarged view of B in the middle; Figure 5 It is a schematic diagram of the structure of the connection steering device; Figure 6 yes Figure 5 A partial enlarged view of middle C; Figure 7 It is a structural schematic diagram of a sky and earth cover forming device; Figure 8 It is a partial structural schematic diagram of the top and bottom cover forming device; Fig. 9 It is a schematic diagram of the internal structure of the sky and earth cover forming device; Fig.10 It is a schematic diagram of the flat-laying structure of cardboard; Fig.11 It is a schematic diagram of the structure of the cardboard in another state; Fig.12 It is a schematic diagram of the process of forming cardboard into a top and bottom lid box; The parts indicated by the numerical symbols in the above drawings are as follows: 1. Paper feeding device; 2. Horizontal folding device; 21. Guide folding member; 22. Adjusting member; 3. Connecting and steering device; 31. Longitudinal baffle; 32. Lifting suction cup; 33. Horizontal limit baffle; 34. Mounting frame; 35. Synchronous wheel; 36. Transverse moving power source; 4. Top and bottom cover forming device; 41. Vertical forming channel; 42. Forming die; 43. Guide member; 44. Side baffle; 441. Mounting plate one; 442. Mounting plate two; 443. Adjusting roller one; 444. Adjusting power source one; 45. Side folding plate; 451. Mounting plate three; 452. Adjusting roller two; 453. Adjusting power source two; 454. Side folding power source; 46. Mechanical hand; 461, suction nozzle; 47, folding ear folding plate; 48, arc-shaped guide surface; 5, gluing mechanism; 51, first gluing device; 52, second gluing device; 53, printing glue roller; 54, glue leveling roller; 55, third gluing device; 61, transverse conveying mechanism; 62, longitudinal conveying mechanism; 63, conveying belt 1; 64, pressure wheel; 65, longitudinal conveying belt; 66, transverse conveying belt; 7, deviation correction device; 71, deviation correction wheel; 72, deviation correction baffle; 81, bottom plate; 8201, side support plate 1; 8202, side support plate 2; 8301, folding plate 1; 8302, folding plate 2; 84, surface paper layer; 841, hemming; 85, gray board layer; 86, folding ear; 87, limit card slot; 89, V-shaped groove. DETAILED DESCRIPTION

[0019] The present invention is further described in detail below in conjunction with the accompanying drawings and embodiments. Example

[0020] Fully automatic seamless lid box forming machine, such as Figure 1-7 As shown, it includes a paper feeding device 1 for outputting a cardboard with a gray board layer and a surface paper layer mounted, a transverse folding device 2, a connecting and steering device 3 and a top and bottom cover forming device 4, and also includes a gluing mechanism 5 and a cardboard conveying device, and the gluing mechanism 5 is arranged on the cardboard conveying path; the transverse folding device 2 is used to fold the folding plates on the left and right sides of the cardboard and the side support plate to form a side plate; the cardboard conveying device includes a transverse conveying mechanism 61 and a longitudinal conveying mechanism 62 at the connecting and steering device 3, the inlet end of the transverse conveying mechanism 61 is conveyed and connected with the transverse folding device 2, and the outlet end of the longitudinal conveying mechanism 62 is conveyed and connected with the top and bottom cover forming device 4; the transverse conveying mechanism 61 and the longitudinal conveying mechanism 62 respectively have transverse connection stations and longitudinal connection stations that are staggered and not located on the same horizontal plane, and the connecting and steering device 3 includes a longitudinal stopper 31 and a lifting suction cup 32, the longitudinal stopper 31 is used to prevent the cardboard on the transverse connection station from continuing to be conveyed transversely, and the lifting suction cup 32 can be lifted and lowered to and from the transverse connection station and the longitudinal connection station, and is used to suck the cardboard on the transverse connection station to the longitudinal connection station without horizontal displacement; like Figure 7-9 As shown, the top and bottom cover forming device 4 includes a vertical forming channel 41, a forming die 42 is arranged above the vertical forming channel 41, and the forming die 42 can move up and down to press the cardboard into the vertical forming channel 41 for forming, and the left and right sides of the vertical forming channel 41 are provided with guide members 43 for the left and right sides of the folded cardboard to stand upright and enter the vertical forming channel 41, and the front and rear sides of the vertical forming channel 41 are respectively provided with side baffles 44 for erecting the front and rear side support plates of the cardboard, and the front and rear sides of the vertical forming channel 41 are also respectively provided with side folding plates 45, and the side folding plates 45 are connected to a side folding power source 454 that can drive it to move forward and backward, and are used to fold the front and rear folding plates of the cardboard toward the inner side of the side support plate, and the horizontal position of the side folding plate 45 is lower than the horizontal position of the upper edge of the side baffle 44, and the top height of the guide member 43 is higher than the top of the side baffle 44.

[0021] A deflection correction device 7 is arranged between the paper feeding device 1 and the transverse folding device 2. The deflection correction device 7 includes a plurality of deflection correction wheels 71 arranged on the left and right sides along the paperboard conveying direction, and a deflection correction baffle 72 outside the deflection correction wheel 71 for limiting the position of the paperboard.

[0022] The transverse folding device 2 includes a guide folding piece 21, which supports the folding plate of the cardboard and folds the folding plate inward by gradually forming a guide with higher outside and lower inside along the conveying direction. The guide folding piece 21 is a guide rod or a belt, and the guide folding piece 21 is connected to an adjustment piece 22 for adjusting its left and right position.

[0023] The connecting and steering device 3 is also provided with a transverse limit baffle 33, which is used to limit the cardboard with the transverse folded edge on the transverse conveying mechanism 61 to the left and right; the shorter one of the transverse conveying mechanism 61 and the longitudinal conveying mechanism 62 is a belt or chain conveyor, and the higher one of the transverse conveying mechanism 61 and the longitudinal conveying mechanism 62 includes a conveying belt 1 63 on the left and right sides, and a pressure wheel 64 is arranged above the conveying belt 1 63. The transverse limit baffle 33 can move horizontally left and right and is directly facing the top of the conveying belt 1 63. The lifting suction cup 32 is located between the conveying belt 1 63 on the left and right sides. The connecting and steering device 3 includes a mounting frame 34 on the left and right sides, and a synchronous wheel 35 is arranged on the mounting frame 34. The conveying belt 1 63 is sleeved on the synchronous wheel 35 for conveying cardboard, and the synchronous wheel 35 is connected to a transverse moving force source 36 for adjusting the position of the left and right conveying belt 1 63.

[0024] The cardboard conveying device further includes a transverse conveying belt 66 and a longitudinal conveying belt 65, both of which are provided with air nozzles connected to a negative pressure source, the transverse conveying belt 66 being arranged at the inlet side of the transverse folding device 2, and the longitudinal conveying belt 65 connecting the longitudinal conveying mechanism 62 and the top and bottom cover forming device 4. The longitudinal conveying belt 65 connecting the longitudinal conveying mechanism 62 may be integrated or separated.

[0025] like Figure 2 As shown, the gluing mechanism 5 includes a first gluing device 51 and a second gluing device 52. Both the first gluing device 51 and the second gluing device 52 include a gluing part 53. The first gluing device 51 is provided with a glue roller 54 in front of the gluing part 53. The first gluing device 51 is provided above the transverse conveying belt 66, and the second gluing device 52 is provided above the longitudinal conveying belt 65.

[0026] The gluing mechanism 5 further includes a third gluing device 55 , which is used to gluing the folded ear portion of the paperboard. The third gluing device 55 is also arranged above the transverse conveying belt 66 or the longitudinal conveying belt 65 .

[0027] The top and bottom cover forming device 4 includes a robot 46 for obtaining cardboard, and a suction nozzle 461 for adsorbing the cardboard is provided at the bottom of the robot 46, and the cardboard to be formed is transported to the entrance of the vertical forming channel 41, and an ear folding plate 47 is provided above the guide member 43, and the ear folding plate 47 is attached to the top of the guide member 43 and its inner surface is located on the inner side of the inner surface of the guide member 43, and the upper ends of the guide member 43 and the ear folding plate 47 have an arc-shaped guiding surface 48 turned outward from bottom to top, and the upper surface of the side baffle 44 is also in an arc shape turned outward from bottom to top, and the arc extension direction of the side baffle 44 is perpendicular to the arc extension direction of the guide member 43 and the ear folding plate 47.

[0028] The side baffle plate 44 on the left side is respectively mounted on the mounting plate 1 441 front and back, and the side baffle plate 44 on the right side is respectively mounted on the mounting plate 2 442 front and back, wherein at least one of the mounting plate 1 441 and the mounting plate 2 442 is mounted on the adjusting roller 1 443 through a nut, the adjusting roller 1 443 is connected to an adjusting power source 1 444 for driving it to rotate, and the adjusting roller 1 443 cooperates with the nut thread to drive the mounting plate 1 441 or the mounting plate 2 442 connected thereto to move axially; the side folding plate 45 is facing the middle position of the vertical forming channel 41, and the side folding plate 45 is mounted on the mounting plate 3 451, and the mounting plate 3 451 is mounted on the adjusting roller 2 452 through a nut, and the adjusting roller 2 452 is connected to an adjusting power source 2 453 for driving it to rotate, and the adjusting roller 2 452 cooperates with the nut thread to drive the mounting plate 3 451 connected thereto to move axially.

[0029] like Figure 10-12As shown, the working principle is: the cardboard in the silo is a cardboard with a gray board layer and a surface paper layer mounted and subjected to die-cutting, slotting or scoring. The cardboard has a bottom plate, and a side support plate extends outside the bottom plate. Folding plates extend outside the front, back, left and right side support plates, respectively. The side support plates on the left and right sides have folding ears extending front and back, and the side support plates on the front and back sides have corresponding limit grooves for the folding ears to be inserted in the gray board part. There are folds or slots between the bottom plate and the side support plate, and between the side support plate and the folding plate, respectively, to facilitate the folding of the box body. If there are slots, the first gluing device 51 and the second gluing device 52 can glue the inside of the slots at the same time when gluing, so as to increase the strength of the box body after forming. The paper feeding device 1 usually includes a silo for stacking cardboards and a feeder for feeding the cardboards. Other conventional means used by people in this field can also be used to achieve paper feeding, which is not limited here. The transverse folding device 2 folds the folding plates and the side support plates on the left and right sides of the paperboard, and guides them with a belt or a guide rod to make them fold. Before that, there is a glue layer between the folding plate and the side support plate, so that they can be glued after folding. If it is done by machine, the first gluing device 51 can be used for gluing. The left and right and front and back directions here are only used as reference directions for the convenience of description, rather than limiting the specific viewing direction.

[0030] After the paper feeding device 1 delivers the cardboard, it passes through the deflection correction device 7. The deflection correction baffle 72 on the side of the deflection correction device 7 will block the cardboard's feeding position and limit it to the left and right. If there is any deviation, the deflection correction wheel 71 presses the cardboard to correct its conveying direction. Then it enters the first gluing device 51. The first gluing device 51 and the subsequent second gluing device 52 can be glued by a glue roller or glued by a glue head or transfer glue. You can choose to use a glue roller to glue the glue. The cardboard conveying device conveys the cardboard throughout the whole process. The most common conveying method is to use a conveyor belt to convey it, and it can also be conveyed by a chain push plate.

[0031] After gluing, the cardboard enters the transverse folding device 2. While the cardboard of the transverse folding device 2 is transported forward, the folded board is gradually folded inward from the unfolded state by the guide folding piece 21 on the side.

[0032] The transverse folding device 2 includes a guide folding member 21, which supports the folding plate of the cardboard and gradually forms a guide with a high outside and a low inside along the conveying direction so as to fold the folding plate inward. The guide folding member 21 is a guide rod or a belt. The guide folding member 21 is connected with an adjusting member 22 for adjusting its left and right positions. The folding plate or the side support plate has glue under the action of the first gluing device 51. Therefore, after folding inward, the folding plates on the left and right sides are stacked together with the side support plates to achieve fixation. Then the cardboard enters the connecting steering device 3, and the cardboard transported front and back needs to be transported in the left and right directions. Since the transport of the two is in different directions, a lifting suction cup 32 is required to realize the transfer of the workstation. After the longitudinal block 31 blocks the cardboard on the transverse connection station from continuing to be transported transversely, the lifting suction cup 32 rises and sucks the cardboard, so that the horizontal position of the cardboard will not be offset, thereby improving the accuracy of cardboard processing. After the lifting suction cup 32 sucks the cardboard, the lifting suction cup 32 descends and absorbs the cardboard to the longitudinal connection station on the longitudinal conveying mechanism 62. The adjusting member 22 can be a conventional structure known to those skilled in the art, such as a cylinder, a slider with an adjusting hand wheel, a slider connected to a driving power source, etc.

[0033] Further optimization, the connecting steering device 3 is also provided with a transverse limit baffle 33, which limits the left and right positions of the cardboard when the cardboard is transported transversely. The transverse limit baffle 33 can further move transversely left and right, pushing the left and right pressed parts of the cardboard to the middle, and the auxiliary suction cup sucks the cardboard down. Further, the transverse conveying mechanism 61 includes a conveying belt 1 63 on the left and right sides, and a pressure wheel 64 is arranged above the conveying belt 1 63. The pressure wheel 64 presses the left and right sides of the cardboard. The conveying belt 1 63 is sleeved on the synchronous wheel 35 on the mounting frame 34. The synchronous wheel 35 is connected to a transverse moving power source 36. The transverse moving power source is a common power source for people in this field, such as a cylinder, a motor, etc. The movement of the synchronous wheel 35 can adjust the position and spacing between the left and right conveying belts 1 63, so as to facilitate the transportation of cardboards of different sizes.

[0034] The cardboard is conveyed by the longitudinal conveying mechanism 62 into the longitudinal conveying belt 65 with air nozzles connected to the negative pressure source, and then the cardboard is kept flat and conveyed stably through the air nozzles, and will not deviate during the conveying. During the process, the cardboard passes through the second gluing device 52 and the third gluing device 55, and then enters the top and bottom cover forming device 4. The suction cups on the manipulator suck the side support plates and folding plates on the front and back sides of the cardboard to prevent the folding plates from falling. Then, the cardboard reaches the top of the vertical forming channel 41, and the forming die 42 presses down on the bottom plate of the cardboard. Under the action of the guide member 43, the side surfaces formed by the stacked side support plates and folding plates on the left and right sides of the cardboard are blocked by the guide member 43, and the cardboard is turned upright relative to the bottom plate. Under the guidance of the folding ear folding plate 47, the folding ears on both sides of the side are folded inward along the arc-shaped guide surface 48 on the top thereof and pushed inward, and then contact the side baffle plate 44 to maintain a state perpendicular to the side but upright. Then, due to the height difference between the side baffle plate 44 and the guide member 43, the side support plates on the front and rear sides of the cardboard are guided by the side baffle plate 44, and then folded inward after being erected on the left and right sides. The side support plates on the front and rear sides are covered outside the folding ears, so that the folding ears are engaged and adhered with the limiting slots of the side support plates on the front and rear sides. The cardboard continues to move downward, and the side folding plate 45 moves inward to fold the folding plates on the front and rear sides of the upright cardboard into the side support plates to form a top and bottom cover box. The formed top and bottom cover box is directly moved downward for output or brought upward to the upper exit of the forming channel 41 through the forming film, and is clamped away by the clamping plate on the manipulator 46.

[0035] A forming process of a seamless top and bottom lid box is performed by a fully automatic seamless top and bottom lid box forming machine. The seamless top and bottom lid box includes a box body having an unfolded state and a boxed state. The box body includes a bottom plate 81. Side support plates 1 8201 are arranged on the left and right sides of the bottom plate 81, and side support plates 2 8202 are arranged on the front and back. The side support plates 1 8201 and the side support plates 2 8202 extend to every two adjacent sides of the bottom plate 81. A folding plate 1 8301 extends outside the side support plate 1 8201, and a folding plate 2 8302 extends outside the side support plate 2 8202. The box body in the unfolded state has a face paper layer 84 and a gray board layer 85 that fit together. The inner side of the face paper layer 84 is a face paper inner plane for fitting with the gray board layer 85, and the inner side of the gray board layer 85 is a gray board inner plane. There is a height difference between the face paper inner plane and the gray board inner plane. The side support plate 1 8201 is provided with folding ears 86 on both the front and rear sides, and the side support plate 2 8202 adjacent thereto is provided with a limiting card slot 87, the shape and position of the limiting card slot 87 are matched with the folding ears 86, the bottom of the limiting card slot 87 is the surface paper layer 84, and the edge of the limiting card slot 87 is formed on the gray board layer 85; The steps for forming the box body from the unfolded state are as follows: A. The box body is output by the paper feeding device 1 and transported transversely in the front-to-back direction. When the box body passes through the transverse folding device 2, the left and right side support plates 8201 are pressed and limited, and the folding plate 8301 is folded inward along the folding line between the folding plate 8301 and the side support plate 8201, so that the gray board layer 85 of the folding plate 8301 is attached to the gray board layer 85 of the side support plate 8201, and the side plates are folded and bonded to form side plates; B. After the box body reaches the connecting and steering device 3, the left and right side plates are kept horizontally limited for lateral transportation and then turned into longitudinal transportation in the left and right directions through the connecting and steering device 3; C. The box body enters the top and bottom cover forming device 4. Before this, the limit slot 87 is glued, and at least one of the inner sides of the second side support plate 8202 and the second folding plate 8302 is glued; The left and right side panels are turned up and kept upright under the guidance of the guide member 43, and under the guidance of the side baffle plate 44, the folding ears 86 on the front and rear sides of each side support plate 8201 are folded inwards; Under the limitation of the side baffle 44, the front and rear side support plates 8202 are folded upward along the fold line between the bottom plate 81 and the side support plate 8202, and the side support plate 8202 is covered outside the folding ear 86, so that the folding ear 86 is engaged in the limiting slot 87, and the outer surface of the folding ear 86 is in contact with the surface paper layer 84 under the limiting slot 87; D. The side folding power source 454 drives the side folding plate 45 to move inward, so as to fold the folding plate 8302 inward toward the side support plate 8202 to be nearly horizontal. Then, the forming die 42 presses down to make the folding plate 8302 fold down and fit against the inner wall of the side support plate 8202, so that the gray plate layer 85 of the folding plate 8302 fits against the gray plate layer 85 of the side support plate 8202.

[0036] In step D, after the folding plate 1 8301 is folded, the surfaces on both sides of the folding ear 86 overlap with the gray board layer 85 of the folding plate 2 8302 and the surface paper layer 84 of the side support plate 2 8202 respectively, and the surface paper layer 84 of the limiting slot 87 of the side support plate 2 8202 is coated with glue to fix the folding ear 86 to the surface paper layer 84 of the side support plate 2 8202.

[0037] In step B, the lateral conveying mechanism 61 and the longitudinal conveying mechanism 62 are both taken as an example, wherein the lateral conveying mechanism 61 is higher. Figure 5 As shown, the transverse conveying mechanism 61 uses the conveying belt 1 63 and the pressure wheel 64 on both sides to convey the cardboard, and it reaches the transverse connection station after being blocked by the transverse limit baffle 33. At this time, the lifting suction cup 32 rises and holds the cardboard. Then, the transverse moving force source 36 moves outward, and the conveying belt 1 63 and the pressure wheel 64 on both sides move outward to make way so that the cardboard is only held by the lifting suction cup 32. The lifting suction cup 32 moves the cardboard to the longitudinal connection station on the horizontal plane where the longitudinal conveying mechanism 62 is located through lifting and lowering. The lifting suction cup 32 drops to a top surface position not higher than the upper plane of the longitudinal connection station, and the cardboard is conveyed forward by the longitudinal conveying mechanism 62, which is driven by the belt in the figure. In the figure, the longitudinal connection station is located directly below the transverse connection station. After the cardboard is located at the longitudinal connection station, the transverse conveying mechanism 61 moves inward again to meet the next cardboard.

[0038] The steps for forming the box body in the unfolded state are as follows: Ⅰ. Die-cutting the grey board layer 85 and forming the limit slot 87 at the same time; II. Apply glue on the surface paper layer 84 and attach the gray board layer 85 to the surface paper layer 84; III. Cutting the surface paper layer 84; IV. Use a slotting machine to slot the gray board layer 85 horizontally and vertically to form a folding groove 89 between the bottom plate 81 and the side support plate 1 8201, a folding groove 89 between the bottom plate 81 and the side support plate 2 8202, a folding groove 89 between the folding plate 1 8301 and the side support plate 1 8201, and a folding groove 89 between the folding plate 2 8302 and the side support plate 2 8202; V. Apply glue to the inner surface of the gray plate layer 85 of the folding plate 8301; The order of step II, step III and step IV can be changed at will. The method further comprises step VI, gluing the folding groove 9 opened in step IV, and step VI is performed before or after step V or simultaneously with step V.

[0039] In the description of the present invention, it should be understood that the terms "center", "length", "width", "thickness", "up", "down", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first" and "second" are only used for descriptive purposes, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present invention, the meaning of "multiple" is two or more, unless otherwise clearly and specifically defined.

[0040] In conclusion, the above is only a preferred embodiment of the present invention, and all equivalent changes and modifications made according to the scope of the patent application of the present invention should fall within the scope of the patent of the present invention.

Claims

1. A fully automatic seamless top and bottom lid box forming machine, comprising a paper feeding device (1) for outputting a cardboard on which a gray board layer and a surface paper layer have been mounted, a transverse folding device (2), a connecting steering device (3) and a top and bottom lid forming device (4), and also comprising a gluing mechanism (5) and a cardboard conveying device, wherein the gluing mechanism (5) is arranged on a cardboard conveying path; the transverse folding device (2) is used to fold the left and right folding plates of the cardboard and the side support plates to form side plates; The cardboard conveying device comprises a transverse conveying mechanism (61) and a longitudinal conveying mechanism (62) at the connection to the steering device (3); the inlet end of the transverse conveying mechanism (61) is connected to the transverse folding device (2) for conveying, and the outlet end of the longitudinal conveying mechanism (62) is connected to the top and bottom cover forming device (4) for conveying; Features: The top and bottom cover forming device (4) comprises a vertical forming channel (41), a forming die (42) is arranged above the vertical forming channel (41), the forming die (42) can move up and down to press the cardboard into the vertical forming channel (41) for forming, guide members (43) are arranged on the left and right sides of the vertical forming channel (41) for the left and right sides of the folded cardboard to stand upright and enter the vertical forming channel (41), side baffles (44) for erecting the front and rear side support plates of the cardboard are respectively arranged on the front and rear sides of the vertical forming channel (41), and side folding plates (45) are also respectively arranged on the front and rear sides of the vertical forming channel (41), the side folding plates (45) are connected to a side folding power source (454) that can drive the side folding plates (45) to move forward and backward, and are used to fold the front and rear folding plates of the cardboard toward the inner side of the side support plate, the horizontal position of the side folding plates (45) is lower than the horizontal position of the upper edge of the side baffle (44), and the top of the guide member (43) is higher than the top of the side baffle (44).

2. The fully automatic seamless top and bottom lid box forming machine according to claim 1, characterized in that: A deflection correction device (7) is arranged between the paper feeding device (1) and the transverse folding device (2), the deflection correction device (7) comprising a plurality of deflection correction wheels (71) arranged on the left and right sides along the conveying direction of the paperboard, and a deflection correction baffle (72) outside the deflection correction wheels (71) for limiting the position of the paperboard; the transverse folding device (2) comprises a guide folding member (21), the guide folding member (21) supports the folding plate of the paperboard and gradually forms a guide with a higher outer side and a lower inner side along the conveying direction so as to fold the folding plate inwardly, the guide folding member (21) is a guide rod or a belt, and the guide folding member (21) is connected to an adjustment member (22) for adjusting the left and right position of the guide folding member (21).

3. The fully automatic seamless top and bottom lid box forming machine according to claim 1, characterized in that: The transverse conveying mechanism (61) and the longitudinal conveying mechanism (62) respectively have transverse connection stations and longitudinal connection stations which are staggered and not located on the same horizontal plane. The connecting steering device (3) comprises a longitudinal stopper (31) and a lifting suction cup (32). The longitudinal stopper (31) is used to stop the cardboard on the transverse connection station from continuing to be transported transversely. The lifting suction cup (32) can be lifted and lowered back and forth between the transverse connection station and the longitudinal connection station to suck the cardboard on the transverse connection station to the longitudinal connection station without horizontal deviation.

4. The fully automatic seamless top and bottom lid box forming machine according to claim 3 is characterized by: The connecting steering device (3) is also provided with a transverse limit baffle (33), which is used to limit the position of the paperboard with the transverse folded edge on the transverse conveying mechanism (61) to the left and right. The transverse conveying mechanism (61) and the longitudinal conveying mechanism (62) have a higher height, and include conveying belts (63) on the left and right sides. A pressure wheel (64) is arranged above the conveying belt (63). The transverse limit baffle (33) can move horizontally to the left and right and is directly opposite to the top of the conveying belt (63). The lifting suction cups (32) are located on the left and right sides. The connecting steering device (3) includes a mounting frame (34) on the left and right sides, and a synchronous wheel (35) is arranged on the mounting frame (34). The conveying belt (63) is sleeved on the synchronous wheel (35) for conveying paperboard. The synchronous wheel (35) is connected to a lateral moving force source (36) for adjusting the position of the left and right conveying belts (63) and for making way for the longitudinal lifting of the paperboard. The shorter one of the lateral conveying mechanism (61) and the longitudinal conveying mechanism (62) is a belt or chain conveyor.

5. The fully automatic seamless top and bottom lid box forming machine according to claim 1, characterized in that: The cardboard conveying device further comprises a transverse conveying belt (66) and a longitudinal conveying belt (65), both of which are provided with air nozzles connected to a negative pressure source, the transverse conveying belt (66) being arranged at the inlet side of the transverse folding device (2), the longitudinal conveying belt (65) connecting the longitudinal conveying mechanism (62) and the top and bottom cover forming device (4), and the longitudinal conveying belt (65) and the longitudinal conveying mechanism (62) being the same component or different components.

6. The fully automatic seamless top and bottom lid box forming machine according to claim 1, characterized in that: The gluing mechanism (5) comprises a first gluing device (51) and a second gluing device (52). Both the first gluing device (51) and the second gluing device (52) comprise a gluing member (53). The first gluing device (51) is provided on a glue-distributing roller (54) in front of the gluing member (53). The first gluing device (51) is provided above a transverse conveying belt (66), and the second gluing device (52) is provided above a longitudinal conveying belt (65). The gluing mechanism (5) further comprises a third gluing device (55). The third gluing device (55) is used for gluing the folded ear portion of the paperboard. The third gluing device (55) is also provided above the transverse conveying belt (66) or the longitudinal conveying belt (65).

7. The fully automatic seamless top and bottom lid box forming machine according to claim 1, characterized in that: The top and bottom cover forming device (4) comprises a robot (46) for obtaining a cardboard, a suction nozzle (461) for sucking the cardboard is arranged at the bottom of the robot (46), and the cardboard to be formed is conveyed to the entrance of the vertical forming channel (41), an ear folding plate (47) is arranged above the guide member (43), the ear folding plate (47) is attached to the top of the guide member (43) and its inner surface is located on the inner side of the inner surface of the guide member (43), the upper ends of the guide member (43) and the ear folding plate (47) both have an arc-shaped guide surface (48) turned outward from bottom to top, the upper surface of the side baffle (44) is also in an arc shape turned outward from bottom to top, and the arc extension direction of the side baffle (44) is perpendicular to the arc extension direction of the guide member (43) and the ear folding plate (47).

8. The fully automatic seamless top and bottom lid box forming machine according to claim 1, characterized in that: The left side baffle (44) is respectively mounted on the first mounting plate (441) at the front and rear, and the right side baffle (44) is respectively mounted on the second mounting plate (442) at the front and rear, wherein at least one of the first mounting plate (441) and the second mounting plate (442) is mounted on the first adjusting roller (443) via a nut, the first adjusting roller (443) is connected to an adjusting power source (444) for driving the first adjusting roller (443) to rotate, and the first adjusting roller (443) is threadedly engaged with the nut to drive the first mounting plate (444) connected thereto. 441) or the second mounting plate (442) moves axially; the side folding plate (45) is directly opposite to the middle position of the vertical forming channel (41), the side folding plate (45) is mounted on the third mounting plate (451), the third mounting plate (451) is mounted on the second adjusting roller (452) through a nut, the second adjusting roller (452) is connected to the second adjusting power source (453) for driving the second adjusting roller (452) to rotate, and the second adjusting roller (452) and the nut thread cooperate to drive the third mounting plate (451) connected thereto to move axially.

9. A forming process of a top and bottom lid box, wherein the forming process is performed by the fully automatic seamless top and bottom lid box forming machine as described in any one of claims 1 to 8, wherein the seamless top and bottom lid box comprises a box body having an unfolded state and a boxed state, wherein the box body comprises a bottom plate (81), side support plates 1 (8201) are arranged on the left and right sides of the bottom plate (81), and side support plates 2 (8202) are arranged on the front and rear sides, wherein the side support plates 1 (8201) and the side support plates 2 (8202) extend from every two adjacent sides of the bottom plate (81), and folding plates 1 (8301) extend from the outside of the side support plates 1 (8201), and folding plates 2 (8302) extend from the outside of the side support plates 2 (8202); The box body in the unfolded state has a face paper layer (84) and a gray board layer (85) that are bonded to each other, the inner side of the face paper layer (84) is a face paper inner plane for bonding to the gray board layer (85), the inner side of the gray board layer (85) is a gray board inner plane, and there is a height difference between the face paper inner plane and the gray board inner plane; Features: The side support plate 1 (8201) is provided with folding ears (86) on both the front and rear sides, and the side support plate 2 (8202) adjacent thereto is provided with a limiting card slot (87), the shape and position of the limiting card slot (87) are matched with the folding ears (86), the bottom of the limiting card slot (87) is the surface paper layer (84), and the edge of the limiting card slot (87) is formed on the gray board layer (85); The steps for forming the box body from the unfolded state are as follows: A. The box body is output by the paper feeding device (1) and transported transversely in the front-to-back direction. When the box body passes through the transverse folding device (2), the left and right side support plates (8201) are pressed and limited, and the folding plate (8301) is folded inward along the folding line between the folding plate (8301) and the side support plate (8201), so that the gray board layer (85) of the folding plate (8301) is attached to the gray board layer (85) of the side support plate (8201), and the folding plates are folded and bonded to form side plates; B. After the box body reaches the connecting and steering device (3), the left and right side plates are kept horizontally limited for lateral transportation and then are turned into longitudinal transportation in the left and right directions through the connecting and steering device (3); C. The box body enters the top and bottom cover forming device (4). Prior to this, the limit slot (87) is glued, and at least one of the inner surfaces of the second side support plate (8202) and the second folding plate (8302) is glued; The left and right side panels are turned up and kept upright under the guidance of the guide member (43), and under the guidance of the side baffle plate (44), the folding ears (86) on the front and rear sides of each side support plate (8201) are folded inwards; Under the limit of the side baffle (44), the front and rear side support plates (8202) are folded upward along the fold line between the bottom plate (81) and the side support plate (8202), and the side support plate (8202) is wrapped around the folding ear (86), so that the folding ear (86) is engaged in the limit slot (87), and the outer surface of the folding ear (86) is in contact with the surface paper layer (84) under the limit slot (87); The side folding power source (454) drives the side folding plate (45) to move inwards, and is used to fold the folding plate (8302) inwards towards the side support plate (8202) to a nearly horizontal position, and then the forming die (42) presses downwards to make the folding plate (8302) turn downwards and fit against the inner wall of the side support plate (8202), so that the gray plate layer (85) of the folding plate (8302) fits against the gray plate layer (85) of the side support plate (8202).

10. The forming process of a top and bottom cover box according to claim 9, characterized in that: Step D: After the folding plate 1 (8301) is folded, the two side surfaces of the folding ear (86) overlap with the gray board layer (85) of the folding plate 2 (8302) and the surface paper layer (84) of the side support plate 2 (8202), respectively. The surface paper layer (84) of the limiting slot (87) of the side support plate 2 (8202) is coated with glue, so that the folding ear (86) is fixed to the surface paper layer (84) of the side support plate 2 (8202).

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