Non-fillet full-automatic paper box forming machine

Abstract

The utility model relates to a non-fillet full-automatic paper box forming machine. A facial tissue gluing and feeding device, a facial tissue conveying belt, a four-side shaping mechanism and a box folding part are sequentially arranged on a rack of the forming machine. A corrugated paper feeding mechanism is arranged above the surface paper conveying belt; and a paper pressing block capable of moving up and down is arranged above the four-side shaping mechanism. The box folding part comprises a box mold device, a long edge action device, a wide edge action device and a lug folding device. The four-side shaping mechanism comprises a material receiving plate, a first width adjusting assembly, a supporting plate and a second width adjusting assembly, the material receiving plate is in linkage with the falling box pre-forming block, and a box holding plate is arranged below the material receiving plate and is in linkage with a belt, a belt wheel and a second servo motor. A deviation rectifying mechanism is arranged on the machine frame, and a formed box discharging protection plate is arranged on the side of the long-edge action device. The surface paper gluing and feeding device comprises a stacking panel, a lifting mechanism, a suction cup clamping assembly and the like. The corrugated paper feeding mechanism comprises a corrugated paper storage belt, a second belt transmission assembly and the like. The deviation rectifying mechanism comprises a transverse plate, a sliding rail, a sliding block and the like.

Description

Technical Field

[0001] This utility model specifically relates to a fully automatic cardboard box forming machine that does not require corner pasting. Background Technology

[0002] Chinese utility model patent document with publication number "CN111216407A" discloses a forming device and method for a non-corner blank box. The device mainly consists of a frame, a face paper transport and positioning module (including a face paper conveyor belt and a face paper limiting baffle for transporting and positioning the face paper), a corrugated paper transport and positioning module (including a corrugated paper conveyor belt, a corrugated paper limiting baffle, a paper separating knife, a pressure plate, and a corrugated paper support plate for transporting, positioning, and supporting the corrugated paper), a corrugated paper forming module (composed of four surrounding corrugated paper forming plates and a motor for stamping and forming the corrugated paper), a lifting module (including an upper stamping module and a lower lifting module for driving the corrugated paper and face paper to move up and down), a double-work displacement module (for moving the face paper from the face paper transport and positioning module to below the corrugated paper forming module), and an edge-wrapping forming module (including a long edge module, a folding module, and a short edge module for folding and wrapping the edges of the paper box). The face paper, pre-coated with adhesive on its inner surface, is transported to one end of the double-worker displacement module via the face paper transport positioning module; the corrugated paper is fed through the corrugated paper transport positioning module and separated by a paper cutter to ensure that one sheet of corrugated paper enters the corrugated paper conveyor belt; the upper stamping module moves downward, stamping the corrugated paper into the corrugated paper forming module to complete the corrugated paper forming; the upper stamping module drives the corrugated paper to continue stamping downward, contacting the face paper located on the lower lifting module to complete the bonding; the lower lifting module retracts, and the upper stamping module drives the corrugated paper and face paper to continue moving downward, sequentially entering the long side module, the edge module, and the short side module to complete the folding and binding steps.

[0003] As can be seen from the structure and forming method of the device, the forming of the top and bottom lid box generally requires first folding the corrugated paper into the shape of the blank box, and then performing a second "folding" action with the face paper coated with glue to fold the face paper into the outer surface shape of the blank box, and finally forming the top and bottom lid box.

[0004] In summary, existing automatic cardboard box forming machines with top and bottom lids require two sets of "folding" mechanisms, which not only result in complex structures and large overall dimensions, but also extremely low production efficiency. Utility Model Content

[0005] The technical problem to be solved by this utility model is to provide a fully automatic cardboard box forming machine that does not require corner pasting, addressing the shortcomings of the prior art.

[0006] To achieve the above objectives, the present invention provides the following technical solution:

[0007] A fully automatic cardboard box forming machine without corner pasting includes a frame. The frame is sequentially equipped with a face paper gluing and feeding device, a face paper conveyor belt and a first belt drive assembly linked to the face paper conveyor belt, a four-sided shaping mechanism, and a folding component. A corrugated paper feeding mechanism is located above the face paper conveyor belt. A vertically movable paper pressing block is located above the four-sided shaping mechanism. The folding component includes a box mold device, two sets of symmetrically distributed long-side actuating devices, two sets of symmetrically distributed wide-side actuating devices, and an ear-folding device. The four-sided shaping mechanism includes two sets of symmetrically distributed receiving plates, a first width adjustment assembly linked to the two sets of receiving plates, two sets of symmetrically distributed support plates below the receiving plates, and a second width adjustment assembly linked to the two sets of support plates. The assembly consists of two symmetrically distributed box-dropping pre-forming blocks linked to each set of receiving plates. The first width adjustment component can drive the two sets of receiving plates to move closer or separate. Below each box-dropping pre-forming block, there are four sets of box-holding plates. Every two sets of box-holding plates are synchronously linked to a ninth slider. The ninth slider is linked to a belt, and the belt is linked to a pulley. The pulley is rotatably mounted on a support plate and is linked to a second servo motor. The body of the second servo motor is fixed on the support plate. The frame is equipped with a correction mechanism linked to the support plate. A lower paper protection plate is fixed on the frame between the long-side action device and the two sets of support plates. A box-exit protection plate is provided on the side of the long-side action device away from the lower paper protection plate.

[0008] This solution has the following advantages: (i) It achieves fully automated cornerless cardboard box forming. (ii) Through the ingenious cooperation of the four-sided shaping mechanism and the folding box component, the entire forming process can be completed with only one set of folding box components. The four-sided shaping mechanism first pre-forms the corrugated paper into a blank box, and then feeds the pre-formed blank box into the folding box component through the box-holding plate. The box mold device, long side action device, wide side action device, and folding ear device work together to complete the folding action of the face paper in one go, folding the face paper into the outer surface shape of the blank box and pasting it to the bottom of the blank box, thus avoiding the complex structure of using two sets of folding box mechanisms. Due to the reduction in the number of folding box mechanisms, the space layout on the frame is optimized. This results in a significant reduction in overall size, allowing the frame to be designed more compactly, saving production space, and also reducing equipment manufacturing costs by reducing complex mechanical parts and the corresponding installation and debugging workload. (III) The process of "corrugated paper folding, face paper pasting, and face paper folding" is combined into a continuous forming process. The paper pressing block first pre-forms the corrugated paper and presses it into the box-holding plate. After correction, it continues to press down to paste the face paper. Then, the box-holding plate moves forward into the folding component to complete the folding. This reduces the switching time between processes and the transfer time of materials between different mechanisms, thus shortening the entire forming cycle and significantly improving production efficiency. Among them, the face paper protection plate not only protects the face paper pasted under the blank box, but also plays a role in transporting the blank box and face paper, ensuring that both can enter the folding device more accurately. The forming and exiting protection plate pulls and discharges the processed paper boxes. The face paper protection plate and the forming and exiting protection plate work together to feed materials. While feeding, the face paper and blank box to be formed push the formed paper box to the forming and exiting protection plate, improving production efficiency. Feeding and discharging are carried out simultaneously, which not only improves production efficiency, but also eliminates the need for separate material handling parts, resulting in low cost. The specific working principle of this scheme is as follows: The corrugated paper feeding mechanism transports the flat corrugated paper to above the box-forming pre-forming block, while the face paper feeding belt transports the flat face paper to below the box-holding plate. It should be noted that a first rack is linked above the pressing block, and the first rack is slidably connected to the frame via a slider. Simultaneously, a third servo motor is installed on the frame, and a gear is installed at the output end of the third servo motor. The gear meshes with the first rack to drive the lifting and lowering of the pressing block. The pressing block presses the flat corrugated paper into four sets of box-forming pre-forming blocks, pre-forming the blank box. The pressing block continues to move downwards, pressing the pre-formed blank box into the box-holding plate, and then the pressing block retracts from the box-holding plate. Then, the alignment mechanism automatically adjusts the position of the box-holding plate according to the direction of the face paper below, until the position of the box-holding plate is consistent with the position of the face paper below. Then, the pressing block continues to press down on the blank box, the face paper is pasted to the bottom of the blank box, and the pressing block retracts from the box-holding plate. The second servo motor controls the box-holding plate to move forward through pulleys, belts and other mechanisms until the box-holding plate enters the box-folding component. The box mold device, two sets of symmetrically distributed long-side action devices, two sets of symmetrically distributed wide-side action devices and folding ear device work together to complete the box-folding action of the face paper.

[0009] The aforementioned non-corner-attached fully automatic paper box forming machine can be further configured as follows: the face paper gluing and feeding device includes a stacking panel, a lifting mechanism linked to the stacking panel, and a suction cup clamping assembly disposed above the stacking panel. The end of the stacking panel facing the face paper conveyor belt is provided with a gluing roller assembly, and a glue-passing plate is provided below the glue-passing plate. Several sets of pressing seats are provided between the glue-passing plate and the glue-passing roller assembly.

[0010] The suction cup clamping assembly transports the face paper from the stacking panel in an orderly manner between the gluing roller assembly and the gluing plate, where it is glued and then pulled onto the face paper conveyor belt. The gluing roller assembly and the gluing plate work together to adhere the glue to the top of the face paper. The pressure plate presses down on the face paper to guide it, helping it to accurately enter the space between the gluing roller assembly and the gluing plate.

[0011] The aforementioned fully automatic cardboard box forming machine without corner fitting can be further configured as follows: the corrugated paper feeding mechanism includes a corrugated paper storage belt and a second belt drive assembly linked to the corrugated paper storage belt. A corrugated paper stacking plate is provided at the end of the corrugated paper storage belt, and the corrugated paper stacking plate is lower than the corrugated paper storage belt. A corrugated paper conveyor belt is provided at the end of the corrugated paper stacking plate away from the corrugated paper storage belt. The corrugated paper conveyor belt is linked to a third belt drive assembly. A strip-shaped paper conveying trough is provided in the middle of the corrugated paper stacking plate, arranged along the conveying direction of the corrugated paper storage belt. A paper-separating push block is provided at the end of the strip-shaped paper conveying trough facing the corrugated paper storage belt. Paper-separating blades distributed above the corrugated paper stacking plate are provided at the end of the strip-shaped paper conveying trough facing the corrugated paper conveyor belt. The paper-separating push block is linked to a first driving mechanism, which can drive the paper-separating push block towards the strip-shaped paper conveying trough. The machine operates in a complex manner. Several sets of rollers are evenly distributed on both sides of the strip-shaped paper conveying trough. The frame is also equipped with symmetrically distributed corrugated paper limiting plates on both sides of the strip-shaped paper conveying trough. Two sets of corrugated paper limiting plates are linked to a third width adjustment component. One set of corrugated paper limiting plates has a through-hole, at which a corrugated paper sensor for detecting corrugated paper is installed. A positioning plate is located above the corrugated paper storage belt. The positioning plate is placed parallel to the transport direction of the corrugated paper storage belt and is linked to a positioning frame. The positioning frame is linked to a second slide rail, which is placed perpendicular to the transport direction of the corrugated paper storage belt. The second slide rail is slidably fitted with a second slider, which is fixed to the frame. Below the positioning frame is a strip-shaped positioning hole parallel to the second slider, and the frame has positioning screw holes corresponding to the strip-shaped positioning hole.

[0012] This solution has the following advantages: (I) The corrugated paper conveyor belt transports corrugated paper sequentially and orderly. Relying on the corrugated paper stacking plate, paper-splitting knife, paper-splitting push block, and drive block, it accurately separates individual sheets of corrugated paper from the pile and transports them to the conveyor belt in an orderly manner, achieving automated conveying of corrugated paper and face paper, reducing manual intervention, and improving production efficiency. (II) Precise separation: The coordinated use of the paper-splitting push block and paper-splitting knife ensures that only a single sheet of corrugated paper is separated from the pile at a time, avoiding the simultaneous pushing of multiple sheets. (III) The corrugated paper storage belt not only enables orderly transport of piled corrugated paper but also allows for the stacking of large quantities of corrugated paper, eliminating the need for repeated and frequent stacking. The corrugated paper stacking plate is positioned lower than the corrugated paper storage belt, providing better working conditions for the paper splitting process and preventing the corrugated paper storage belt from affecting the splitting operation. (iv) The corrugated paper storage belt and the face paper conveyor belt are parallel to each other. Regardless of whether the cardboard box is rectangular or other shapes, the operator only needs to ensure that the face paper and corrugated paper are in the same direction when feeding the material, making operation convenient. The specific operation is as follows: The corrugated paper is pre-placed on the corrugated paper storage belt, which is driven by the second belt drive assembly, allowing the corrugated paper to move smoothly to the position of the corrugated paper stacking plate. After the corrugated paper is transported from the corrugated paper storage belt and falls onto the corrugated paper stacking plate, the first drive mechanism starts working, driving the paper separating push block to move towards the corrugated paper. The paper separating push block pushes the corrugated paper located at the bottom of the corrugated paper stacking plate forward. At the same time, the gap between the paper separating knife at the front end and the corrugated paper stacking plate is precisely designed to allow only one sheet of paper to pass through. This ensures that when the paper separating push block pushes the corrugated paper, only the bottom single sheet of corrugated paper can be separated and pushed onto the corrugated paper conveyor belt, while the other corrugated paper remains on the stacking plate, waiting for the next separation. The corrugated paper conveyor belt then pulls the separated single sheet of corrugated paper to the next process. Meanwhile, the rollers reduce the friction between the bottom corrugated paper and the corrugated paper stack plate, better assisting the paper separating push block in moving the bottom corrugated paper forward, and also facilitating the corrugated paper conveyor belt to pull the bottom corrugated paper. Simultaneously, the corrugated paper limiting plate restricts the lateral movement of the corrugated paper during conveying, ensuring its stable movement along the predetermined path. The position of the corrugated paper limiting plate can be adjusted according to the specifications and thickness of the corrugated paper using a third width adjustment component. Corrugated paper sensors are used to detect the presence and position of the corrugated paper.

[0013] The aforementioned fully automatic cardboard box forming machine without corner fitting can be further configured as follows: the correction mechanism includes a horizontal plate, both ends of which are slidably connected to a support plate. A first slider is slidably connected to the end of the horizontal plate via a first slide rail. The first slide rail is fixed to the horizontal plate. A second slider is rotatably connected to the first slider. The second slider is slidably connected to a second slide rail. The axial direction of the first slide rail and the axial direction of the second slide rail are perpendicular to each other. The second slide rail is arranged parallel to the axis of the support plate. The second slider is linked to a second driving mechanism. A third slide rail is provided at the end of the support plate away from the horizontal plate. The third slide rail is fixed to the support plate and is arranged parallel to the axis of the support plate. The third slide rail is slidably linked to a second driving mechanism. The three sliders are as follows: the third slider is fixedly connected to the first rotating block by screws; the first rotating block is rotatably connected to the first guide shaft by bearings; the lower end of the first guide shaft is linked to a sliding assembly; the sliding assembly includes a fourth slider linked to the first guide shaft; the fourth slider is slidably connected to a fourth slide rail; the fourth slide rail is fixed to the frame; the middle of the cross plate is fixedly connected to the third rotating block by screws; the third rotating block is rotatably connected to the third guide shaft by bearings; the lower end of the third guide shaft is connected to a second transmission plate; the second transmission plate is fixedly connected to the sixth slider by screws; the sixth slider is slidably connected to a sixth slide rail; the sixth slide rail is fixed to the frame and is arranged parallel to the axis of the second slide rail.

[0014] When the orientation of the preform box deviates during transportation, the second drive mechanism controls the second slider to move along the second slide rail. Since the second slider is rotatably connected to the first slider, the movement of the second slider causes the first slider to rotate around the second slider and simultaneously move along the first slide rail. The movement of the first slider causes the support plate linked to it to move, thus achieving a preliminary adjustment of the preform box's position. To avoid interference at the other end of the support plate, the third slider moves with the support plate. Simultaneously, the first rotating block moves with the third slider, but because it is rotatably connected to the first guide shaft via a bearing, the first guide shaft can rotate relative to the first rotating block. When the first guide shaft rotates due to the adjustment of the support plate, the fourth slider linked to it slides along the fourth slide rail. This sliding further adjusts the position of the support plate, ensuring that the final position of the preform box corresponds perfectly with the face paper. During the adjustment of the support plate's position, the third rotating block, the sixth slide rail, and the sixth slider in the middle of the horizontal plate jointly guide the center point of the horizontal plate, ensuring that the center point of the horizontal plate is always on the axial direction of the sixth slide rail; that is, when the preform box's position is adjusted, the center point of the preform box always remains on the predetermined path. When the position of the blank box is completely aligned with the face paper, the correction mechanism stops working and proceeds to the next step of shaping and bonding the blank box and the face paper.

[0015] The aforementioned fully automatic cardboard box forming machine without corner fitting can be further configured as follows: the first slider is fixedly connected to a second rotating block by screws, the second rotating block is rotatably connected to a second guide shaft by bearings, the lower end of the second guide shaft is connected to a first transmission plate, the lower part of the first transmission plate is fixedly connected to the second slider by screws, the side of the first transmission plate is linked with a second drive mechanism, the second drive mechanism includes a first servo motor, the body of the first servo motor is fixed on the frame, the output end of the first servo motor is linked to a main transmission gear, the main transmission gear meshes with a second rack, the second rack is fixedly connected to the first transmission plate, and the second rack is arranged parallel to the second slide rail, the end of the horizontal plate is fixed with a fifth slide rail, the axial direction of the fifth slide rail is parallel to the axial direction of the first slide rail, the fifth slide rail is slidably fitted with a fifth slider, and the fifth slider is fixedly installed at the end of the support plate.

[0016] During the correction process, the first servo motor starts, and by precisely controlling the rotation angle and speed of its output end, it indirectly controls the rotation of the main drive gear. The meshing transmission between the main drive gear and the second rack converts the rotational motion of the motor into the linear motion of the second rack. Since the second rack is fixedly connected to the first transmission plate, the linear motion of the second rack directly drives the first transmission plate to move in a direction parallel to the second slide rail. As the first transmission plate moves, the first slider, which is connected to it through the second guide shaft and the second rotating block, also moves accordingly. The first slider not only moves along the first slide rail, but also rotates around a certain center point (i.e., the axis of the second rotating block) due to the rotational connection between the second guide shaft and the second rotating block. This composite motion allows the support plate (and blank box) directly or indirectly connected to the first slider to be adjusted in both horizontal and vertical directions simultaneously. At the same time, when the fifth slide rail and the fifth slider are correcting the alignment, the support plate can move relative to the horizontal plate, avoiding interference points between the horizontal plate and the support plate when the horizontal plate moves.

[0017] The aforementioned fully automatic cardboard box forming machine without corners can be further configured as follows: two sets of face paper sensors for detecting the side position of the face paper are provided below the support plate, the face paper sensors are linked to a positioning bracket, the positioning bracket is provided with a strip hole, the support plate is provided with several sets of screw holes, and the strip hole and any set of screw holes are detachably connected by screws.

[0018] The tissue sensor continuously monitors both sides of the tissue (located below the preform box). The first servo motor automatically adjusts its speed, direction, and other parameters based on the data from the tissue sensor, automatically adjusting the orientation of the preform box until it aligns with the tissue orientation. A slotted hole is also provided to adjust the installation position of the tissue sensor according to actual conditions.

[0019] The aforementioned fully automatic cardboard box forming machine without corner fitting can be further configured as follows: the long side action device or the wide side action device includes a rolling edge bracket, a rolling edge brush, a folding edge plate, and a rolling edge pressure plate; the rolling edge brush is distributed on the upper part of the rolling edge bracket, and the rolling edge brush of the long side action device is higher than the rolling edge brush of the wide side action device; a brush drive cylinder is installed on the upper part of the rolling edge bracket, and the output end of the brush drive cylinder is linked with the rolling edge brush and can drive the rolling edge brush to reciprocate along the output direction of the brush drive cylinder; the rolling edge pressure plate is detachably installed on the rolling edge bracket and distributed below the rolling edge brush; the folding edge plate is distributed between the rolling edge brush and the rolling edge pressure plate; the rolling edge bracket... The system includes a hemming drive servo motor. The output end of the hemming drive servo motor is linked to a first gear. The first gear meshes with a third rack, which is linked to a seventh slide rail. The seventh slide rail is slidably fitted with a seventh slider, which is fixed to the frame. The seventh slide rail is linked to a folding plate. The hemming bracket is linked to a lead screw mechanism. The lead screw mechanism includes a first lead screw with one end hinged to the frame and a first lead screw nut threadedly connected to the first lead screw. The first lead screw nut is fixedly connected to the hemming bracket. The lower part of the hemming bracket is linked to an eighth slider, which is slidably fitted with an eighth slide rail, which is fixed to the frame.

[0020] Because the edge-rolling brush of the long-side action device is higher than that of the edge-rolling brush of the wide-side action device, the purpose is to fold the long side first, then fold the ear, to stably maintain the folded shape of the long side. Next, the wide side is folded, and the actions are completely orderly without interference. The folding plate is positioned between the edge-rolling brush and the edge-rolling pressure plate. After the edge-rolling brush rolls the edge of the face paper, the folding plate folds the edge of the face paper according to a preset program. The movement of the folding plate is controlled by an edge-rolling drive servo motor. The output of the edge-rolling drive servo motor is linked to a first gear, which meshes with a third rack. The third rack is linked to a seventh slide rail, which slides with a seventh slider, which is fixed to the frame. This transmission mechanism ensures the precise movement of the folding plate, allowing the edge of the face paper to be accurately folded to the predetermined position. After the folding plate folds the edge of the face paper, the edge-rolling pressure plate presses down on the folded edge, ensuring the stability and firmness of the fold. The detachable design of the edge-rolling pressure plate and the adjustable function of the screw mechanism allow the device to adapt to face paper of different thicknesses and materials. By adjusting the clamping force of the edge-rolling pressure plate and the position of the edge-rolling bracket, optimal folding results can be ensured under different production conditions, improving the versatility and flexibility of the device.

[0021] The aforementioned fully automatic cardboard box forming machine without corner fitting can be further configured as follows: the folding ear device includes a first folding ear linkage rod and a folding ear mounting bracket. One end of the folding ear mounting bracket is slidably connected to the edge-rolling bracket in the long side action device, and the other end is slidably connected to the first folding ear linkage rod through a linear bearing. The first folding ear linkage rod is linked to the edge-rolling bracket of the wide side action device. The folding ear mounting bracket is slidably connected to a folding ear drive bracket. A folding ear brush is installed at the end of the folding ear drive bracket. The folding ear drive bracket is linked to a second folding ear linkage rod through a linear bearing. A folding ear drive slider is linked in the middle of the second folding ear linkage rod. The folding ear drive slider is slidably engaged with a folding ear guide rail. The folding ear guide rail is linked to a fourth rack. The fourth rack meshes with a second gear. The second gear is linked to a folding ear drive servo motor. The folding ear drive servo motor is fixed on the edge-rolling bracket in the long side action device.

[0022] The use of a servo motor to drive the folding ear mechanism automates the folding action, reducing manual intervention and improving production efficiency. Through precise servo motor control, the folding action can be performed quickly and continuously, reducing changeover time between processes. The second folding ear linkage can simultaneously drive the folding ear brushes at both ends to work synchronously, improving the folding accuracy and efficiency of the blank box.

[0023] The aforementioned fully automatic cardboard box forming machine without corner fitting can be further configured as follows: the box mold device includes a box mold support, an upper mold mechanism, a demolding mechanism, and a lower mold mechanism. The upper mold mechanism and the demolding mechanism are mounted on the box mold support, and the lower mold mechanism is distributed below the box mold support and corresponds to the upper mold mechanism or the demolding mechanism. The upper mold mechanism includes an upper mold drive servo motor mounted on the box mold support. The upper mold drive servo motor is linked to an upper mold pulley assembly. The upper mold pulley assembly is linked to an upper mold gear and rack transmission assembly. The upper mold gear and rack transmission assembly is linked to an upper module. The upper module has a through hole in the middle. The demolding mechanism includes a demolding module movably disposed in the through hole. The demolding module is linked to a demolding slider screw transmission assembly. The demolding slider screw transmission assembly is linked to a demolding drive servo motor mounted on the box mold support.

[0024] Both the upper mold and the demolding process are controlled by servo motors, achieving high-precision control and fast response, and possessing advantages such as energy saving, high efficiency, and high reliability.

[0025] The aforementioned non-corner-attached fully automatic cardboard box forming machine can be further configured such that: the lower mold mechanism includes a lower mold drive cylinder mounted on the frame and a lower module linked to the output end of the lower mold drive cylinder.

[0026] The lower mold is controlled by a cylinder. When the upper mold pushes the blank box downward, the lower mold can generate an upward force on the blank box, thereby increasing the support force on the blank box and preventing the blank box and face paper from shifting to the left or right during the forming process.

[0027] The present invention will now be described in further detail with reference to the accompanying drawings and embodiments. Attached Figure Description

[0028] Figure 1 This is a schematic diagram of the entire machine according to an embodiment of the present utility model;

[0029] Figure 2 This is a partial structural diagram of the paper conveyor belt in an embodiment of the present invention;

[0030] Figure 3 This is a partial structural view of the paper conveyor belt in an embodiment of the present invention;

[0031] Figure 4 This is a schematic diagram of the structure of the corrugated paper stacking plate in an embodiment of this utility model;

[0032] Figure 5 This is an exploded view of a portion of the structure at the corrugated paper conveyor belt in an embodiment of this utility model;

[0033] Figure 6 This is a schematic diagram of the positioning plate structure in an embodiment of the present utility model;

[0034] Figure 7 This is a schematic diagram of the adhesive feeding device for the face paper according to an embodiment of the present invention;

[0035] Figure 8 This is a schematic diagram of the four-sided shaping mechanism and the folding box component according to an embodiment of the present utility model;

[0036] Figure 9 This is a schematic diagram of the folding box component according to an embodiment of the present utility model;

[0037] Figure 10 This is a schematic diagram of the folding ear device according to an embodiment of the present utility model.

[0038] Figure 11 This is a schematic diagram of the long-side actuation device and the wide-side actuation device according to an embodiment of the present utility model;

[0039] Figure 12 This is a schematic diagram of the box mold device according to an embodiment of the present utility model;

[0040] Figure 13 This is a schematic diagram of the four-sided shaping mechanism according to an embodiment of the present utility model;

[0041] Figure 14 This is a partial structural diagram of the preformed block for box placement in an embodiment of the present utility model;

[0042] Figure 15 This is a schematic diagram of the paper pressing block according to an embodiment of the present utility model;

[0043] Figure 16 This is a schematic diagram of a portion of the structure of the box-holding plate in an embodiment of the present utility model. Figure 1 ;

[0044] Figure 17 for Figure 16 Enlarged view of a portion of point A in the middle;

[0045] Figure 18 for Figure 16 Enlarged view of a portion of point B in the middle;

[0046] Figure 19 for Figure 16 Enlarged view of a portion of point C in the middle;

[0047] Figure 20 This is a partially enlarged schematic diagram of the tissue paper sensor in an embodiment of this utility model;

[0048] Figure 21 This is a schematic diagram of a portion of the structure of the box-holding plate in an embodiment of the present utility model. Figure 2 ;

[0049] Paper conveyor belt a1, corrugated paper storage belt a2, corrugated paper stacking plate a3, corrugated paper conveyor belt a4, strip paper conveying trough a5, paper separating push block a7, roller a12, paper separating knife a15, corrugated paper limiting plate a19, mounting plate a20, second lead screw a21, corrugated paper sensor a22, positioning plate a23, positioning frame a24, second slide rail a25, strip positioning hole a26; four-sided shaping mechanism b, horizontal plate b1, support plate b2, first servo motor b3, main transmission gear b4, second rack b5, first transmission plate b6, second slider b7, second slide rail b8, second guide Axis b9, second rotating block b10, first slide rail b11, first slider b12, fifth slider b13, fifth slide rail b14, third slide rail b15, third slider b16, first rotating block b17, first guide shaft b18, fourth slider b19, fourth slide rail b20, paper sensor b21, positioning bracket b22, strip hole b23, box holding plate b24, ninth slider b25, second servo motor b26, third rotating block b27, third guide shaft b28, second transmission plate b29, sixth slider b30, sixth slide rail b31, receiving plate b32 The following components are included: first width adjustment component b33, second width adjustment component b35, box preforming block b34; paper pressing block c, first rack c1, third servo motor c2; box folding component d, box mold device d1, long side action device d2, wide side action device d3, folding ear device d4, edge rolling bracket d5, edge rolling brush d6, edge rolling pressure plate d7, brush drive cylinder d8, edge rolling drive servo motor d9, seventh slide rail d10, first lead screw d11, eighth slide rail d12, first folding ear linkage rod d13, folding ear mounting bracket d14, folding ear drive bracket d15, folding ear brush. d16, second folding ear linkage rod; d17, folding ear drive slider; d18, folding ear guide rail; d19, folding ear drive servo motor; d20, upper mold drive servo motor; d21, upper mold pulley assembly; d22, demolding module; d23, demolding drive servo motor; d24, lower mold drive cylinder; d25, lower module; d26, face paper protection plate; d27, forming and box-ejection protection plate; d28, upper module; d29, folding edge plate; d30, face paper gluing and feeding device; e, stacking panel; e1, lifting mechanism; e2, suction cup clamping assembly; e3, gluing roller assembly; e4, gluing plate; e5, pressing seat; e7. Detailed Implementation

[0050] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0051] like Figures 1 to 21The diagram shows a fully automatic cardboard box forming machine without corner pasting. It includes a frame, on which are sequentially mounted a face paper gluing and feeding device e, a face paper conveyor belt a1 and a first belt drive assembly linked to the face paper conveyor belt a1, a four-sided shaping mechanism b, and a box folding component d. Above the face paper conveyor belt a1 is a corrugated paper feeding mechanism. Above the four-sided shaping mechanism b is a vertically movable paper pressing block c. The box folding component d includes a box mold device d1, two sets of symmetrically distributed long-side moving devices d2, two sets of symmetrically distributed wide-side moving devices d3, and a folding ear device d4. The four-sided shaping mechanism b includes two sets of symmetrically distributed receiving plates b32, a first width adjustment assembly b33 linked to the two sets of receiving plates b32, two sets of symmetrically distributed support plates b2 below the receiving plates b32, and a second width adjustment assembly b35 linked to the two sets of support plates b2. The receiving plate b32 is linked to two symmetrically distributed box-dropping pre-forming blocks b34. The first width adjustment component b33 can drive the two receiving plates b32 to move closer or separate from each other. Below the box-dropping pre-forming blocks b34, there are four sets of box-holding plates b24. Every two sets of box-holding plates b24 are synchronously linked to a ninth slider b25. The ninth slider b25 is linked to a belt, and the belt is linked to a pulley. The pulley is rotatably mounted on the support plate b2, and the pulley is linked to a second servo motor b26. The body of the second servo motor b26 is fixed on the support plate b2. The frame is equipped with a correction mechanism linked to the support plate b2. The frame is fixed with paper protection plates d27 distributed between the long side action device d2 and the two sets of support plates b2. The side of the long side action device d2 away from the paper protection plates d27 is equipped with a box-forming and exiting protection plate d28. The corrugated paper feeding mechanism transports the flat corrugated paper to above the box-feeding pre-forming block b34, while the face paper feeding belt a1 transports the flat face paper to below the box-holding plate b24. It should be noted that a first rack c1 is linked above the pressing block c, and the first rack c1 is slidably connected to the frame via a slider. Simultaneously, a third servo motor c2 is installed on the frame, and a gear is installed at the output end of the third servo motor c2. The gear meshes with the first rack c1 to drive the lifting and lowering of the pressing block c. The pressing block c presses the flat corrugated paper into the four sets of box-feeding pre-forming blocks b34, pre-forming the blank box. The pressing block c continues to move downwards, pressing the pre-formed blank box into the box-holding plate b24, and then the pressing block c retracts from the box-holding plate b24. Then, the alignment mechanism automatically adjusts the position of the box-holding plate b24 according to the direction of the face paper below, until the position of the box-holding plate b24 is consistent with the position of the face paper below. Then, the pressure block c continues to press down on the blank box, and the face paper is pasted to the bottom of the blank box. The pressure block c then exits the box-holding plate b24. The second servo motor b26 controls the box-holding plate b24 to move forward through pulleys, belts, and other mechanisms until the box-holding plate b24 enters the folding box component d. The box mold device d1, two sets of symmetrically distributed long-side action devices d2, two sets of symmetrically distributed wide-side action devices d3, and the folding ear device d4 work together to complete the folding action of the face paper.

[0052] The face paper gluing and feeding device e includes a stacking panel e1, a lifting mechanism e2 linked to the stacking panel e1, and a suction cup clamping assembly e3 positioned above the stacking panel e1. A gluing roller assembly e4 is located at the end of the stacking panel e1 facing the face paper conveyor belt a1. A glue-passing plate e5 is located below the gluing roller assembly e4, and several sets of pressing seats e7 are positioned between the glue-passing plate e5 and the gluing roller assembly e4. The suction cup clamping assembly e3 transports the face paper from the stacking panel e1 orderly between the gluing roller assembly e4 and the glue-passing plate e5 for gluing and is then pulled onto the face paper conveyor belt a1. The gluing roller assembly e4 and the glue-passing plate e5 cooperate to adhere the glue to the face paper. The pressing seats e7 press down and guide the face paper, helping it to accurately enter the space between the gluing roller assembly e4 and the glue-passing plate e5.

[0053] The corrugated paper feeding mechanism includes a corrugated paper storage belt a2 and a second belt drive assembly linked to the corrugated paper storage belt a2. A corrugated paper stacking plate a3 is located at the end of the corrugated paper storage belt a2, and the stacking plate a3 is lower than the corrugated paper storage belt a2. A corrugated paper conveyor belt a4 is located at the end of the stacking plate a3 furthest from the corrugated paper storage belt a2. A third belt drive assembly is linked to the conveyor belt a4. A strip-shaped paper conveying trough a5 is located in the middle of the stacking plate a3, arranged along the conveying direction of the corrugated paper storage belt a2. The strip-shaped paper conveying trough a5 faces... A paper-splitting push block a7 is provided at the end of the corrugated paper storage belt a2. A paper-splitting knife a15 is provided at the end of the strip paper conveyor belt a4 facing the corrugated paper stacking plate a3. The paper-splitting push block a7 is linked to a first drive mechanism, which can drive the paper-splitting push block a7 to reciprocate towards the strip paper conveyor belt a5. Several sets of rollers a12 are evenly distributed on both sides of the strip paper conveyor belt a5. Corrugated paper limiting plates are also installed on the frame, symmetrically distributed on both sides of the strip paper conveyor belt a5. A19 consists of two sets of corrugated paper limiting plates a19, each of which is linked to a mounting plate a20. A second lead screw a21 is located between the two sets of mounting plates a20. The second lead screw a21 has two sets of symmetrically distributed threaded sections. Each set of mounting plates a20 is linked to the second lead screw a21 through one set of threaded sections. A signal hole is passed through one set of corrugated paper limiting plates a19, and a corrugated paper sensor a22 for detecting corrugated paper is installed at the signal hole. A positioning plate a2 is located above the corrugated paper storage belt a2. 23. Positioning plate a23 is placed parallel to the transport direction of corrugated paper storage belt a2, and positioning frame a24 is linked to positioning plate a23. Positioning frame a24 is linked to second slide rail a25, which is placed perpendicular to the transport direction of corrugated paper storage belt a2. Second slider is slidably engaged with second slide rail a25, which is fixed to the frame. A strip-shaped positioning hole a26 parallel to the second slider is provided below positioning frame a24, and positioning screw holes are provided on the frame corresponding to the strip-shaped positioning hole a26. Corrugated paper is pre-placed on corrugated paper storage belt a2, which is driven by second belt drive assembly, so that corrugated paper can be smoothly moved to the position of corrugated paper stacking plate a3. After the corrugated paper is transported from the corrugated paper storage belt a2 and falls onto the corrugated paper stacking plate a3, the first drive mechanism starts working, driving the paper separating push block a7 to move towards the corrugated paper. The paper separating push block a7 pushes the corrugated paper at the bottom of the corrugated paper stacking plate a3 forward. At the same time, the gap between the paper separating blade a15 at the front end and the corrugated paper stacking plate a3 is precisely designed to allow only one sheet of paper to pass through. This ensures that when the paper separating push block a7 pushes the corrugated paper, only the bottom single sheet of corrugated paper can be separated and pushed onto the corrugated paper conveyor belt a4, while the other corrugated papers remain on the stacking plate, waiting for the next separation. The corrugated paper conveyor belt a4 then guides the separated single sheet of corrugated paper to the next process. Meanwhile, the roller a12 reduces the friction between the bottom corrugated paper and the corrugated paper stacking plate a3, better assisting the paper separating push block a7 in pushing the bottom corrugated paper forward, and also facilitating the corrugated paper conveyor belt a4 in guiding the bottom corrugated paper.Meanwhile, the corrugated paper limiting plate a19 restricts the lateral movement of the corrugated paper during the conveying process, ensuring its stable movement along a predetermined path. The position of the corrugated paper limiting plate a19 can be adjusted according to the specifications and thickness of the corrugated paper using a third width adjustment component. The corrugated paper sensor a22 is used to detect the presence and position of the corrugated paper.

[0054] The correction mechanism includes a horizontal plate b1, with both ends of the horizontal plate b1 slidably connected to a support plate b2. A first slider b12 is slidably connected to the end of the horizontal plate b1 via a first slide rail b11, which is fixed to the horizontal plate b1. A second slider b7 is rotatably connected to the first slider b12, and a second slide rail b8 is slidably connected to the second slider b7. The axial direction of the first slide rail b11 is perpendicular to the axial direction of the second slide rail b8. The second slide rail b8 is arranged parallel to the axial direction of the support plate b2. A second drive mechanism is linked to the second slider b7. A third slide rail b15 is provided at the end of the support plate b2 away from the horizontal plate b1, fixed to the support plate b2 and arranged parallel to the axial direction of the support plate b2. A third slider b16 is slidably linked to the third slide rail b15, and the third slider b16 is connected to a screw... A first rotating block b17 is fixedly connected to a screw. The first rotating block b17 is rotatably connected to a first guide shaft b18 via a bearing. A sliding assembly is linked to the lower end of the first guide shaft b18. The sliding assembly includes a fourth slider b19 linked to the first guide shaft b18. The fourth slider b19 is slidably connected to a fourth slide rail b20, which is fixed to the frame. A third rotating block b27 is fixedly connected to the middle of a horizontal plate b1 via screws. The third rotating block b27 is rotatably connected to a third guide shaft b28 via a bearing. A second transmission plate b29 is connected to the lower end of the third guide shaft b28. A sixth slider b30 is fixedly connected to the second transmission plate b29 via screws. The sixth slider b30 is slidably connected to a sixth slide rail b31, which is fixed to the frame and is arranged parallel to the axis of the second slide rail b8. When the orientation of the blank box deviates during transportation, the second drive mechanism controls the second slider b7 to move along the second slide rail b8. Since the second slider b7 is rotatably connected to the first slider b12, the movement of the second slider b7 will cause the first slider b12 to rotate around the second slider b7 and move along the first slide rail b11 simultaneously. The movement of the first slider b12 will cause the support plate b2 linked to it to move, thereby achieving a preliminary adjustment of the position of the blank box. To avoid interference at the other end of the support plate b2, the third slider b16 moves with the movement of the support plate b2. At the same time, the first rotating block b17 moves with the movement of the third slider b16, but since it is rotatably connected to the first guide shaft b18 through a bearing, the first guide shaft b18 can rotate relative to the first rotating block b17. When the first guide shaft b18 rotates due to the adjustment of the support plate b2, the fourth slider b19 linked to it will slide along the fourth slide rail b20. This sliding further adjusts the position of the support plate b2, ensuring that the final position of the blank box corresponds perfectly with the face paper.During the adjustment of the support plate b2 position, the third rotating block b27, the sixth slide rail b31, and the sixth slider b30 in the middle of the horizontal plate b1 jointly guide the center point of the horizontal plate b1, ensuring that the center point of the horizontal plate b1 is always in the axial direction of the sixth slide rail b31. That is, when the position of the blank box is adjusted, the center point of the blank box is always kept on the predetermined path. When the position of the blank box is completely aligned with the face paper, the correction mechanism stops working, and the next step of shaping and bonding the blank box and the face paper is carried out.

[0055] The first slider b12 is fixedly connected to the second rotating block b10 by screws. The second rotating block b10 is rotatably connected to the second guide shaft b9 by bearings. The lower end of the second guide shaft b9 is connected to the first transmission plate b6. The lower part of the first transmission plate b6 is fixedly connected to the second slider b7 by screws. The side of the first transmission plate b6 is linked with the second drive mechanism. The second drive mechanism includes a first servo motor b3. The body of the first servo motor b3 is fixed on the frame. The output end of the first servo motor b3 is linked to the main transmission gear b4. The main transmission gear b4 meshes with the second rack b5. The second rack b5 is fixedly connected to the first transmission plate b6 and is arranged parallel to the second slide rail b8. The end of the horizontal plate b1 is fixed with the fifth slide rail b14. The axial direction of the fifth slide rail b14 is parallel to the axial direction of the first slide rail b11. The fifth slide rail b14 is slidably fitted with the fifth slider b13. The fifth slider b13 is fixedly installed at the end of the support plate b2. During the correction process, the first servo motor b3 starts, and indirectly controls the rotation of the main drive gear b4 by precisely controlling the rotation angle and speed of its output end. The meshing transmission between the main drive gear b4 and the second rack b5 converts the rotational motion of the motor into the linear motion of the second rack b5. Since the second rack b5 is fixedly connected to the first transmission plate b6, the linear motion of the second rack b5 directly drives the first transmission plate b6 to move in a direction parallel to the second slide rail b8. As the first transmission plate b6 moves, the first slider b12, which is connected to it through the second guide shaft b9 and the second rotating block b10, also moves accordingly. The first slider b12 not only moves along the first slide rail b11, but also rotates around a certain center point (i.e., the axis of the second rotating block b10) due to the rotational connection between the second guide shaft b9 and the second rotating block b10. This compound motion allows the support plate b2 (and blank box) directly or indirectly connected to the first slider b12 to be adjusted in position in both the horizontal and vertical directions simultaneously. At the same time, when the fifth slide rail b14 and the fifth slider b13 are correcting the deviation, the support plate b2 can move relative to the horizontal plate b1, so as to avoid interference points between the horizontal plate b1 and the support plate b2 when the horizontal plate b1 moves.

[0056] Below the support plate b2 are two sets of tissue paper sensors b21 for detecting the side position of the tissue paper. Each tissue paper sensor b21 is linked to a positioning bracket b22, which has a slotted hole b23. The support plate b2 has several sets of screw holes, and the slotted hole b23 is detachably connected to any set of screw holes via screws. The tissue paper sensors b21 detect both sides of the tissue paper in real time (the tissue paper is located below the blank box). The first servo motor b3 automatically adjusts its speed, direction, and other parameters based on the data from the tissue paper sensors b21, automatically adjusting the orientation of the blank box until the blank box and the tissue paper are aligned. The slotted hole b23 is also provided to adjust the installation position of the tissue paper sensors b21 according to actual conditions.

[0057] The long-side action device d2 or the wide-side action device d3 includes a hemming bracket d5, a hemming brush d6, a folding plate d30, and a hemming pressure plate d7. The hemming brush d6 is located on the upper part of the hemming bracket d5, and the hemming brush d6 of the long-side action device d2 is higher than the hemming brush d6 of the wide-side action device d3. A brush drive cylinder d8 is installed on the upper part of the hemming bracket d5. The output end of the brush drive cylinder d8 is linked with the hemming brush d6 and can drive the hemming brush d6 to reciprocate along the output direction of the brush drive cylinder d8. The hemming pressure plate d7 is detachably installed on the hemming bracket d5 and located below the hemming brush d6. The folding plate d30 is located between the hemming brush d6 and the hemming pressure plate d7. The hemming bracket d5... The device is equipped with a rolling edge drive servo motor d9. The output of the rolling edge drive servo motor d9 is linked to a first gear, which meshes with a third rack. The third rack is linked to a seventh slide rail d10, which is slidably fitted with a seventh slider. The seventh slider is fixed to the frame and is linked to the folding plate d30. The rolling edge bracket d5 is linked to a lead screw mechanism, which includes a first lead screw d11 hinged to the frame at one end and a first lead screw nut threadedly connected to the first lead screw d11. The first lead screw nut is fixedly connected to the rolling edge bracket d5. An eighth slider is linked to the lower part of the rolling edge bracket d5, which is slidably fitted with an eighth slide rail d12, which is fixed to the frame. Because the rolling edge brush d6 of the long side action device d2 is higher than that of the wide side action device d3, the purpose is to fold the long side first, then fold the ear, to stably maintain the folded shape of the long side before folding the wide side. All actions are orderly and do not interfere with each other. The folding plate d30 is positioned between the edge-rolling brush d6 and the edge-rolling pressure plate d7. After the edge-rolling brush d6 rolls the edge of the face paper, the folding plate d30 folds the edge of the face paper according to a preset program. The movement of the folding plate d30 is controlled by the edge-rolling drive servo motor d9. The output of the edge-rolling drive servo motor d9 is linked to a first gear, which meshes with a third rack. The third rack is linked to a seventh slide rail d10, which slidably engages with a seventh slider, which is fixed to the frame. This transmission mechanism ensures the precise movement of the folding plate d30, allowing the edge of the face paper to be accurately folded to the predetermined position. After the folding plate d30 folds the edge of the face paper, the edge-rolling pressure plate d7 presses down on the folded edge, ensuring the stability and firmness of the fold. The detachable design of the edge-rolling pressure plate d7 and the adjustment function of the screw mechanism allow the device to adapt to face papers of different thicknesses and materials. By adjusting the clamping force of the edge-rolling plate d7 and the position of the edge-rolling bracket d5, the best edge-folding effect can be ensured under different production conditions, thus improving the versatility and flexibility of the device.

[0058] The folding ear device d4 includes a first folding ear linkage rod d13 and a folding ear mounting bracket d14. One end of the folding ear mounting bracket d14 is slidably connected to the edge rolling bracket d5 inside the long side action device d2, and the other end is slidably connected to the first folding ear linkage rod d13 via a linear bearing. The first folding ear linkage rod d13 is linked to the edge rolling bracket d5 of the wide side action device d3. A folding ear drive bracket d15 is slidably connected to the folding ear mounting bracket d14, and a folding ear brush d16 is installed at the end of the folding ear drive bracket d15. The folding ear drive bracket d15 is linked to a second folding ear linkage rod d17 via a linear bearing. The middle of the second folding ear linkage rod d17 is linked to a folding ear drive slider d18, which is slidably engaged with a folding ear guide rail d19. The folding ear guide rail d19 is linked to a fourth rack, which meshes with a second gear. The second gear is linked to a folding ear drive servo motor d20, which is fixed to the edge-rolling bracket d5 within the long-side action device d2. The use of the folding ear drive servo motor d20 achieves automated control of the folding ear action, reducing manual intervention and improving production efficiency. Through precise servo motor control, the folding ear action can be performed quickly and continuously, reducing the changeover time between processes. The second folding ear linkage rod d17 can simultaneously drive the folding ear brushes d16 at both ends to work synchronously, improving the folding accuracy and efficiency of the blank box.

[0059] The box mold device d1 includes a box mold support, an upper mold mechanism, a demolding mechanism, and a lower mold mechanism. The upper mold mechanism and the demolding mechanism are mounted on the box mold support, while the lower mold mechanism is located below the box mold support and corresponds to either the upper mold mechanism or the demolding mechanism. The upper mold mechanism includes an upper mold drive servo motor d21 mounted on the box mold support. The upper mold drive servo motor d21 is linked to an upper mold pulley assembly d22, which is linked to an upper mold gear and rack transmission assembly. The upper mold gear and rack transmission assembly is linked to an upper module d29, which has a through hole in its center. The demolding mechanism includes a demolding module d23 movably disposed within the through hole. The demolding module d23 is linked to a demolding slider screw transmission assembly, which is linked to a demolding drive servo motor d24 mounted on the box mold support. Both the upper mold and demolding mechanisms are controlled by servo motors, achieving high-precision control and rapid response, and possessing advantages such as energy efficiency, high reliability, and high performance.

[0060] The lower mold mechanism includes a lower mold drive cylinder d25 mounted on the frame and a lower module d26 linked to the output end of the lower mold drive cylinder d25. The lower mold is controlled by a cylinder. When the upper mold pushes the blank box downward, the lower mold can generate an upward force on the blank box, thereby increasing the support force on the blank box and preventing lateral displacement of the blank box and face paper during the forming process.

Claims

1. A fully automatic cardboard box forming machine without corner pasting, comprising a frame, wherein the frame is sequentially provided with a face paper gluing and feeding device, a face paper conveyor belt and a first belt drive assembly linked to the face paper conveyor belt, a four-sided shaping mechanism, and a box folding component; a corrugated paper feeding mechanism is provided above the face paper conveyor belt; a vertically movable paper pressing block is provided above the four-sided shaping mechanism; the box folding component includes a box mold device, two sets of symmetrically distributed long-side moving devices, two sets of symmetrically distributed wide-side moving devices, and an ear folding device, characterized in that: The four-sided shaping mechanism includes two sets of symmetrically distributed receiving plates, a first width adjustment component linked to the two sets of receiving plates, two sets of symmetrically distributed support plates below the receiving plates, and a second width adjustment component linked to the two sets of support plates. Each set of receiving plates is linked to two sets of symmetrically distributed box-dropping pre-forming blocks. The first width adjustment component can drive the two sets of receiving plates to move closer or separate from each other. Below each box-dropping pre-forming block, there are four sets of box-holding plates. Every two sets of box-holding plates are synchronously linked to a ninth slider. The ninth slider is linked to a belt. The belt is linked to a pulley. The pulley is rotatably mounted on the support plate and is linked to a second servo motor. The body of the second servo motor is fixed on the support plate. The frame is provided with a correction mechanism linked to the support plates. A lower paper protection plate is fixed on the frame between the long-side action device and the two sets of support plates. A forming and ejection protection plate is provided on the side of the long-side action device away from the lower paper protection plate.

2. The fully automatic cardboard box forming machine without corner pasting according to claim 1, characterized in that: The paper coating and feeding device includes a stacking panel, a lifting mechanism linked to the stacking panel, and a suction cup clamping assembly located above the stacking panel. The end of the stacking panel facing the paper conveyor belt is provided with a coating roller assembly, and a glue-passing plate is provided below the coating roller assembly. Several sets of pressing seats are provided between the glue-passing plate and the coating roller assembly.

3. The fully automatic cardboard box forming machine without corner pasting according to claim 2, characterized in that: The corrugated paper feeding mechanism includes a corrugated paper storage belt and a second belt drive assembly linked to the corrugated paper storage belt. A corrugated paper stacking plate is located at the end of the corrugated paper storage belt, and the stacking plate is lower than the belt. A corrugated paper conveyor belt is located at the end of the stacking plate away from the storage belt. The conveyor belt is linked to a third belt drive assembly. A strip-shaped paper conveying trough is located in the middle of the stacking plate, along the conveying direction of the storage belt. A paper-separating push block is located at the end of the strip-shaped paper conveying trough facing the storage belt. Paper-separating knives are distributed above the stacking plate at the end of the strip-shaped paper conveying trough facing the conveyor belt. The paper-separating push block is linked to a first drive mechanism, which drives the push block to reciprocate towards the strip-shaped paper conveying trough. Several sets of rollers are evenly distributed on both sides. The frame is also equipped with corrugated paper limiting plates symmetrically distributed on both sides of the strip paper conveying trough. Two sets of corrugated paper limiting plates are linked to a third width adjustment component. One set of corrugated paper limiting plates has a through-hole, and a corrugated paper sensor for detecting corrugated paper is installed at the through-hole. A positioning plate is provided above the corrugated paper storage belt. The positioning plate is placed parallel to the conveying direction of the corrugated paper storage belt and is linked to a positioning frame. The positioning frame is linked to a second slide rail. The second slide rail is placed perpendicular to the conveying direction of the corrugated paper storage belt and is slidably engaged with a second slider. The second slider is fixed on the frame. A strip-shaped positioning hole parallel to the second slider is provided below the positioning frame. The frame is provided with positioning screw holes corresponding to the strip-shaped positioning hole.

4. The fully automatic cardboard box forming machine without corner pasting according to claim 3, characterized in that: The correction mechanism includes a horizontal plate, with both ends slidably connected to a support plate. A first slider is slidably connected to one end of the horizontal plate via a first slide rail, which is fixed to the horizontal plate. A second slider is rotatably connected to the first slider, which is slidably connected to a second slide rail. The axial directions of the first and second slide rails are perpendicular to each other. The second slide rail is arranged parallel to the axis of the support plate. A second drive mechanism is linked to the second slider. A third slide rail is provided at the end of the support plate away from the horizontal plate. The third slide rail is fixed to the support plate and is arranged parallel to the axis of the support plate. A third slider is slidably linked to the third slide rail. The third slider is connected to the third slider via... A first rotating block is fixedly connected to a screw. The first rotating block is rotatably connected to a first guide shaft via a bearing. A sliding assembly is linked to the lower end of the first guide shaft. The sliding assembly includes a fourth slider linked to the first guide shaft. The fourth slider is slidably connected to a fourth slide rail, which is fixed to the frame. A third rotating block is fixedly connected to the middle of the cross plate via screws. The third rotating block is rotatably connected to a third guide shaft via a bearing. A second transmission plate is connected to the lower end of the third guide shaft. A sixth slider is fixedly connected to the second transmission plate via screws. The sixth slider is slidably connected to a sixth slide rail, which is fixed to the frame and is arranged parallel to the axis of the second slide rail.

5. The fully automatic cardboard box forming machine without corner pasting according to claim 4, characterized in that: The first slider is fixedly connected to the second rotating block by screws. The second rotating block is rotatably connected to the second guide shaft by bearings. The lower end of the second guide shaft is connected to the first transmission plate. The lower part of the first transmission plate is fixedly connected to the second slider by screws. The side of the first transmission plate is linked with the second drive mechanism. The second drive mechanism includes a first servo motor. The body of the first servo motor is fixed on the frame. The output end of the first servo motor is linked to the main transmission gear. The main transmission gear meshes with the second rack. The second rack is fixedly connected to the first transmission plate and is arranged parallel to the second slide rail. The end of the horizontal plate is fixed with a fifth slide rail. The axial direction of the fifth slide rail is parallel to the axial direction of the first slide rail. The fifth slide rail is slidably fitted with a fifth slider. The fifth slider is fixedly installed at the end of the support plate.

6. The fully automatic cardboard box forming machine without corner pasting according to claim 5, characterized in that: Below the support plate are two sets of tissue paper sensors for detecting the side position of the tissue paper. The tissue paper sensors are linked to a positioning bracket, which has a strip-shaped hole. The support plate has several sets of screw holes, and the strip-shaped hole and any set of screw holes are detachably connected by screws.

7. The fully automatic cardboard box forming machine without corner pasting according to claim 6, characterized in that: The long-side or wide-side actuation device includes a rolling edge bracket, a rolling edge brush, a folding edge plate, and a rolling edge pressure plate. The rolling edge brush is distributed on the upper part of the rolling edge bracket, and the rolling edge brush of the long-side actuation device is higher than the rolling edge brush of the wide-side actuation device. A brush drive cylinder is installed on the upper part of the rolling edge bracket, and the output end of the brush drive cylinder is linked to the rolling edge brush and can drive the rolling edge brush to reciprocate along the output direction of the brush drive cylinder. The rolling edge pressure plate is detachably installed on the rolling edge bracket and distributed below the rolling edge brush. The folding edge plate is distributed between the rolling edge brush and the rolling edge pressure plate. A rolling edge drive servo motor is provided on the rolling edge bracket. The output end of the hemming drive servo motor is linked to a first gear, which meshes with a third rack. The third rack is linked to a seventh slide rail, which is slidably engaged with a seventh slider. The seventh slider is fixed to the frame and is linked to the hemming plate. The hemming bracket is linked to a lead screw mechanism, which includes a first lead screw with one end hinged to the frame and a first lead screw nut threadedly connected to the first lead screw. The first lead screw nut is fixedly connected to the hemming bracket. The lower part of the hemming bracket is linked to an eighth slider, which is slidably engaged with an eighth slide rail. The eighth slide rail is fixed to the frame.

8. The fully automatic cardboard box forming machine without corner pasting according to claim 7, characterized in that: The folding lug device includes a first folding lug linkage rod and a folding lug mounting bracket. One end of the folding lug mounting bracket is slidably connected to the rolling edge bracket in the long side action device, and the other end is slidably connected to the first folding lug linkage rod via a linear bearing. The first folding lug linkage rod is linked to the rolling edge bracket of the wide side action device. The folding lug mounting bracket is slidably connected to a folding lug drive bracket. A folding lug brush is installed at the end of the folding lug drive bracket. The folding lug drive bracket is linked to a second folding lug linkage rod via a linear bearing. A folding lug drive slider is linked to the middle of the second folding lug linkage rod. The folding lug drive slider is slidably engaged with a folding lug guide rail. The folding lug guide rail is linked to a fourth rack. The fourth rack meshes with a second gear. The second gear is linked to a folding lug drive servo motor. The folding lug drive servo motor is fixed on the rolling edge bracket in the long side action device.

9. The fully automatic cardboard box forming machine without corner pasting according to claim 8, characterized in that: The box mold device includes a box mold support, an upper mold mechanism, a demolding mechanism, and a lower mold mechanism. The upper mold mechanism and the demolding mechanism are mounted on the box mold support, and the lower mold mechanism is located below the box mold support and corresponds to the upper mold mechanism or the demolding mechanism. The upper mold mechanism includes an upper mold drive servo motor mounted on the box mold support. The upper mold drive servo motor is linked to an upper mold pulley assembly, which is linked to an upper mold gear and rack transmission assembly. The upper mold gear and rack transmission assembly is linked to an upper module. The upper module has a through hole in the middle. The demolding mechanism includes a demolding module movably disposed in the through hole. The demolding module is linked to a demolding slider screw transmission assembly, which is linked to a demolding drive servo motor mounted on the box mold support.

10. A fully automatic cardboard box forming machine without corner pasting according to claim 9, characterized in that: The lower mold mechanism includes a lower mold drive cylinder mounted on the frame and a lower module that is linked to the output end of the lower mold drive cylinder.

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