A packaging box forming machine

Abstract

The present invention provides a packaging box forming machine, comprising a mold mechanism installed in a frame, a bottom plate feeding mechanism, a side plate feeding mechanism, a box barrel forming mechanism, a box bottom forming mechanism, a box ejecting mechanism and a box mouth forming mechanism; the mold mechanism is two groups arranged in parallel, including a mold moving device with X- and Z-axis linear modules, and a mold device, the end face of the mold device has a bottom plate adsorption device, and the two groups of mold devices are located on the same vertical plane; the box barrel forming mechanism includes two groups of support frames arranged relatively, a Y-axis linear module driving the support frames to move, and a box barrel forming device arranged on the support frames. One group of forming mechanisms cooperates with two groups of mold mechanisms to work alternately, with high production efficiency and a simple and compact equipment structure. The preforming of the embryo box is omitted, and there is no need to perform multiple surface bonding and leveling operations, so the equipment structure is greatly simplified; the side edges of the box body have only one splicing line, and the four sides of the box bottom are all hemmed, so the box body forming effect is good.

Description

Technical Field

[0001] The invention relates to the technical field of packaging box forming equipment, and in particular to a square tube box body forming machine for forming a blank box. Background Art

[0002] In addition to packaging and protecting products, packaging boxes can also increase the added value of products, so high-end packaging boxes have a large market demand. Some high-end wine boxes and gift boxes often use thicker cardboard as the embryo box, and then paste decorative surfaces on the outer surface.

[0003] The molding process of this type of packaging box is relatively complicated. A common packaging box molding equipment has a molding process of first die-cutting the cardboard and then laminating it to make a square cylindrical blank box with an open top, then gluing the facial paper to the bottom of the blank box, and finally using the pasting molding mechanism to laminate the facial paper on the four sides of the blank box from bottom to top; this laminating method is prone to cause the facial paper to skew when laminating and leveling the four sides of the blank box, so it is necessary to reserve excess facial paper, and after laminating and leveling, the excess is cut off at the edge of the facial paper. This molding equipment has low production efficiency and wastes facial paper materials, and there are seams on the four side edges of the box body, which affects the grade of the packaging box.

[0004] The Chinese invention patent with the authorization announcement number CN104070705B discloses a wine box forming machine. The forming principle of the equipment is: first, the pre-glued face paper is bonded to the four sides of the formed embryo box, and then the surface is pressed and leveled, and then the bottom of the embryo box is glued, the face paper is attached and pressed. Compared with other forming equipment, the wine box formed by this equipment has only one seam on the four sides, and there is no need to cut excess face paper, which improves production efficiency and product grade; however, the equipment has many processes, and the production efficiency still needs to be improved, and the bottom face paper is an independent face paper, that is, the four sides are all seams, and the lamination accuracy with the bottom of the embryo box is required to be high. Summary of the invention

[0005] The object of the present invention is to provide a packaging box forming machine with high production efficiency, simple and compact structure and good forming effect.

[0006] To achieve the above purpose, the technical solution adopted by the present invention is:

[0007] A packaging box forming machine, used for forming a square cylindrical box body with a blank box, comprises a frame, and installed in the frame:

[0008] Two groups of mold mechanisms are arranged in parallel along the Y-axis direction, the mold mechanism includes a mold moving device having an X-axis linear module and a Z-axis linear module, and a mold device driven by the mold moving device, the outer end of the mold device corresponds to the inner cavity of the box body, the end surface of the mold device corresponding to the bottom of the box has a bottom plate adsorption device, and the two groups of mold devices are located on the same vertical plane;

[0009] A bottom plate feeding mechanism, used for conveying the bottom plate of the box body to the bottom plate adsorption device;

[0010] The side plate feeding mechanism is used to convey the side plates of the box body to the forming starting station;

[0011] The box barrel forming mechanism is used to shape the side plate into a box barrel around the mold device, including two sets of support frames arranged opposite to each other along the Y-axis direction, a Y-axis linear module driving the support frames to move, and a box barrel forming device arranged on the support frames;

[0012] A box bottom forming mechanism, used for shaping the edge of the side panel toward the box bottom until it fits with the bottom panel;

[0013] A box-removing mechanism, used for removing the box body from the mold device;

[0014] The box mouth forming mechanism is arranged behind the box withdrawing mechanism and is used for shaping the edge of the side plate toward the box mouth.

[0015] Furthermore, the box tube forming device includes a flipping device located at the top for flipping the flat side panel around the mold device, a side pressing device located below the flipping device for positioning the side panel, and an upper forming device provided between the side pressing device and the flipping device for performing Y-axial bending and shaping on the upper side surface of the side panel.

[0016] Furthermore, the flipping device includes a mounting base fixed to the top of the support frame, and a flipping plate horizontally placed above the mounting base, the flipping plate is hinged to the mounting base through a hinge axis parallel to the inner side edge, and there is a certain horizontal spacing between the hinge axis and the inner side edge of the flipping plate. The mounting base is also provided with a flipping drive device for driving the flipping plate to flip up 90° around the hinge axis.

[0017] Furthermore, the side pressure device includes a side pressure plate vertically arranged on the inner side of the support frame, a lower limit plate horizontally fixed to the lower edge of the inner side of the side pressure plate, the lower limit plate is a height-adjustable structure, and also includes a side pressure mounting plate fixed on the support frame, and a Y-axis driving device for driving the side pressure plate is provided between the side pressure mounting plate and the side pressure plate.

[0018] Furthermore, the box bottom forming mechanism includes a first box bottom forming device for bending and shaping the box bottom in the Z-axis direction, and a second box bottom forming device for shaping the box bottom in the Y-axis direction, and the second box bottom forming device includes two groups arranged opposite to each other and respectively installed on the two groups of support frames.

[0019] Furthermore, the mold device includes four groups of square side strips corresponding to the side edges of the box body, and the end faces of the side strips corresponding to the bottom of the box are provided with bottom plate suction cups, wherein two opposite surfaces of the mold device are provided with mold fixing plates located between the two groups of the side strips, and adjustment blocks, and mold gaskets for adjusting the spacing are also provided between the two groups of the mold fixing plates.

[0020] Furthermore, the bottom plate feeding mechanism includes a storage rack, a positioning device, a first bottom plate conveying device for conveying the bottom plate from the storage rack to the positioning device, and a second bottom plate conveying device for conveying the bottom plate from the positioning device to the bottom plate adsorption device.

[0021] Furthermore, the box ejection mechanism includes an X-axial support plate located below the box tube forming mechanism, a box clamping device arranged on both sides of the support plate, and a box ejection driving device that drives the box clamping device to move along the support plate; the support plate and the mold device are located in the same vertical plane, and the box clamping device includes a side baffle plate for clamping the box body, and a baffle edge extending inward from the side baffle plate.

[0022] Furthermore, the box mouth forming mechanism includes a horizontally arranged top pressure plate and a top pressure driving device for driving the top pressure plate to rise and fall. The top pressure plate is fixed with a downwardly extending lower folding portion and an X-axially bent edging device at one end corresponding to the box mouth.

[0023] Furthermore, it also includes a box discharge mechanism, which includes a box discharge conveyor belt in the Y-axis direction, and a box pushing device that pushes the box body from the box mouth forming mechanism into the box discharge conveyor belt; the side panel feeding mechanism includes a feeding conveyor belt parallel to the top of the box discharge conveyor belt.

[0024] The beneficial effect of the present invention is that: a set of box barrel forming mechanism and box bottom forming mechanism are adopted, and two sets of mold mechanisms that move in a square track are used to work alternately, so that when one set of mold mechanisms is shaping the box body, the other set of mold mechanisms can simultaneously perform box withdrawal, bottom plate adsorption, and track movement operations other than box body shaping. Compared with the equipment of sequential process, its production efficiency is greatly improved, and the equipment structure is simple and compact. Compared with the production process of existing equipment, the forming equipment puts the process of bonding and leveling the face paper and the side plate of the embryo box in advance, but omits the embryo box preforming process, not only the laminating operation between the face paper and the side plate of the embryo box is more convenient and flatter, but also the forming equipment does not need to perform the laminating and leveling of multiple surfaces in steps, and the process and equipment structure are greatly simplified; in addition, since the face paper is cut as a whole, the side edge of the box body has only one splicing line, and the four sides of the bottom of the box are all hemmed, and the box body forming effect is good. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] The present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0026] Figure 1 It is a schematic diagram of the exploded structure of the molding machine in the embodiment;

[0027] Figure 2 It is a structural schematic diagram of the side plate in the embodiment;

[0028] Figure 3 It is a schematic diagram of the structural decomposition of the mold mechanism in the embodiment;

[0029] Figure 4 It is a structural schematic diagram of the side plate feeding mechanism in the embodiment;

[0030] Figure 5 It is a schematic diagram of the exploded structure of one side of the box barrel forming mechanism in the embodiment;

[0031] Figure 6 It is a schematic diagram of the exploded structure of the turning device in the embodiment;

[0032] Figure 7 It is a schematic diagram of the exploded structure of the side pressure device in the embodiment;

[0033] Figure 8 Schematic diagram of the structure of the first box bottom forming device in the embodiment;

[0034] Fig. 9 It is a schematic diagram of the exploded structure of the mold device in the embodiment;

[0035] Fig.10 It is a structural schematic diagram of the bottom plate feeding mechanism in the embodiment;

[0036] Fig.11 It is a structural schematic diagram of the box-returning mechanism and the box-discharging mechanism in the embodiment;

[0037] Fig.12 It is a structural schematic diagram of the box mouth forming mechanism in the embodiment.

[0038] Among them: 1. Rack; 2. Mold mechanism; 21. Mold moving device; 211. X-axis linear module; 212. Z-axis linear module; 22. Mold device; 221. Bottom plate adsorption device; 222. Side strip; 223. Mold fixing plate; 224. Adjustment block; 225. Mold gasket; 3. Bottom plate feeding mechanism; 31. Storage rack; 32. Positioning device; 33. First bottom plate conveying device; 34. Second bottom plate conveying device; 4. Side plate feeding mechanism; 41. Feeding conveyor belt; 411. Correction device; 42. Manipulator; 5. Box tube forming mechanism; 51. Support frame; 52. Y-axis linear module; 53. Box tube forming device; 531. Turning device; 5311. Mounting seat; 5312. Turning plate; 5313. Articulated shaft; 5314, flip driving device; 532, side pressure device; 5321, side pressure plate; 5322, lower limit plate; 5323, side pressure mounting plate; 5324, Y-axis driving device; 533, upper forming device; 6, box bottom forming mechanism; 61, first box bottom forming device; 611, driving cylinder; 612, shaping fixture; 62, second box bottom forming device; 7, box ejection mechanism; 71, supporting plate; 72, box clamping device; 721, side baffle plate; 722, baffle edge; 73, box ejection driving device; 74, baffle plate; 8, box mouth forming mechanism; 81, top pressure plate; 82, top pressure driving device; 83, lower folding part; 84, edge wrapping device; 9, box discharging mechanism; 91, box discharging conveyor belt; 92, box pushing device; 100, side plate. DETAILED DESCRIPTION

[0039] The present invention will be further described below in conjunction with the accompanying drawings:

[0040] It should be noted that in the present application, the X-axis, Y-axis, and Z-axis directions only indicate relative directions for the convenience of expression. "Linear module" is used to indicate its structural principle, and does not narrowly refer to a modular structure.

[0041] refer to Figures 1 to 12 , a packaging box forming machine, used to form a square cylindrical box body with a blank box, where: "blank box" refers to the inner layer of the box made of hardboard, and "face paper" is the decorative layer pasted on the outer surface of the blank box. "Baseboard" refers to the bottom board of the blank box, refer to Figure 2 , the side panels 100 refer to the surrounding side panels of the embryo box and the surface paper bonded together; the "box body" refers to the finished or semi-finished packaging box, the "box tube" refers to the surrounding walls of the formed box body, and the "box bottom" refers to the bottom of the box body. The packaging box forming machine includes a frame 1 for fixing and installing various mechanisms, and installed in the frame 1:

[0042] refer to Figure 3, two groups of mold mechanisms 2 are arranged in parallel along the Y-axis direction, the mold mechanism 2 includes a mold moving device 21 with an X-axis linear module 211 and a Z-axis linear module 212, and a mold device 22 driven by the mold moving device, the outer end of the mold device 22 corresponds to the inner cavity of the box body, and the end surface of the mold device 22 corresponding to the bottom of the box is provided with a bottom plate adsorption device 221, and the two groups of the mold devices 22 are located on the same vertical plane; wherein, the X-axis and Z-axis linear modules are conventionally designed in the field, such as synchronous belt type or ball screw type, and the present embodiment is preferably a ball screw type, including a servo motor, a ball screw, a linear guide rail pair, a photoelectric switch, etc.; the bottom plate adsorption device 221 is a vacuum suction cup; the two groups of the mold devices 22 are located on the same vertical plane, and under the drive of their respective mold moving devices 21, the two groups of the mold devices 22 can perform cyclic motion at different positions on the same motion trajectory.

[0043] The bottom plate feeding mechanism 3 is used to convey the bottom plate of the box body to the bottom plate adsorption device 221; wherein, the bottom plate can be fed dynamically by means of a conveyor belt or the like, or a storage device can be set up to take out one by one; the bottom plate needs to be positioned before being sent to the bottom plate adsorption device 221.

[0044] refer to Figure 4 The side panel feeding mechanism 4 is used to convey the side panel 100 of the box body to the starting molding station; wherein, the side panel feeding is usually that the side panel 100 is laid flat on the feeding conveyor belt 41, and after positioning, it is conveyed to the starting molding station by a manipulator 42 with a suction cup; of course, it can also be achieved by directly positioning and grabbing from the upstream station to the starting molding station by a manipulator.

[0045] The box barrel forming mechanism 5 is used to shape the side plate 100 into a box barrel around the mold device 22, including two sets of support frames 51 arranged opposite to each other along the Y-axis direction, a Y-axis linear module 52 driving the support frame 51 to move, and a box barrel forming device 53 arranged on the support frame 51; the Y-axis linear module 52 is of conventional design in the art, such as a synchronous belt type or a ball screw type, and the present embodiment is preferably a ball screw type, including a servo motor, a ball screw, a linear guide rail pair, a photoelectric switch, etc.; the principle of the box barrel forming device is: move the mold device 22 to the flat side plate 100, specifically corresponding to the top of the bottom side of the box body, and then flip the two sides of the side plate 100 around the mold device 22 to form two vertical sides of the box body, and finally flip the two sides of the side plate 100 around the mold device 22 again, and overlap the two sides to form the top side of the box body. This process only requires the side plate 100 to be bent around the mold device 22, and only the overlapping surface needs to be fitted and leveled. Therefore, the box tube forming device 53 usually needs to include a flipping structure and a flattening structure. The specific flipping and flattening structures are conventional technologies in the field of packaging forming equipment and can be selected by comprehensively considering factors such as cost, space, and precision. The Y-axis linear module 52 that drives the support frame 51 to move can adjust the distance between the two groups of support frames 51 to be suitable for forming boxes of different sizes.

[0046] The box bottom forming mechanism 6 is used to shape the edge of the side panel 100 toward the box bottom side until it fits with the bottom plate; that is, to bend the tissue paper on the side panel 100 corresponding to the box bottom side to fit it on the bottom plate. It usually includes a Z-axis shaping structure for shaping the upper and lower edges, and a Y-axis shaping structure for shaping the two vertical edges, so that the tissue paper is bent and fit on the bottom plate and flattened; the specific shaping structure is a conventional technology in the field of packaging forming equipment, such as an L-shaped shaping fixture that moves obliquely, a roller that moves vertically, a shovel plate and other structures.

[0047] The box-removing mechanism 7 is used to remove the box body from the mold device; the box-removing mechanism 7 can remove the box body from the mold device 22 by adsorption, clamping, hooking, etc. The specific removal structure is a conventional technology in the field of packaging molding equipment.

[0048] The box opening forming mechanism 8 is arranged behind the box ejecting mechanism 7, and is used to shape the edge of the side plate 100 toward the box opening. The box opening forming usually needs to be performed after the box body is taken out from the mold device 22. The specific shaping principle includes positioning the box body, bending the side paper of the box opening and then attaching it to the inner surface of the box body. The specific structure is also a conventional technology in the field of packaging forming equipment.

[0049] One of the working modes of the packaging box forming machine is: the mold device 22 moves to the position of the bottom plate feeding mechanism 3 under the drive of the mold moving device 21, and the bottom plate feeding mechanism 3 sends the bottom plate to the bottom plate adsorption device 221 for adsorption, and the side plate feeding mechanism 4 transports the flat side plate 100 to the starting position of the box tube forming mechanism 5, and the mold device 22 continues to move to the position corresponding to the bottom side of the side plate 100, and then completes the molding of the box tube through the box tube forming device 53, and completes the molding of the box bottom by the box bottom forming mechanism 6, and then the mold device 22 sends the box body to the box ejecting mechanism 7 to complete the box ejection, and the box body is then shaped by the box mouth forming mechanism 8. After completing the box ejection, the mold device 22 returns to the starting position and starts the next round of operation; and after the first group of mold devices 22 completes the shaping of the box bottom, the other mold device 22 has completed the adsorption of the bottom plate and moved to the starting position of the box tube forming mechanism 5 driven by its mold moving device 21, and the two groups of mold devices 22 perform alternating cycle operations.

[0050] A set of box tube forming mechanism 5 and box bottom forming mechanism 6 are used to cooperate with two sets of mold mechanisms 2 that move in a square track to work alternately, so that when one set of mold mechanisms 2 is shaping the box body, the other set of mold mechanisms 2 can simultaneously perform box withdrawal, bottom plate adsorption, and track movement operations other than box body shaping. Compared with the equipment of sequential process, its production efficiency is greatly improved, and the equipment structure is simple and compact. Compared with the production process of existing equipment, the forming equipment puts the process of bonding and leveling the face paper and the side plate of the embryo box in advance, but omits the embryo box preforming process, which not only makes the bonding operation between the face paper and the side plate of the embryo box more convenient and flatter, but also makes the forming equipment unnecessary to perform the bonding and leveling of multiple surfaces in steps, and the process and equipment structure are greatly simplified; in addition, since the face paper is cut as one piece, the side edge of the box body has only one splicing line, and the four sides of the bottom of the box are all hemmed, so the box body forming effect is good.

[0051] refer to Figure 5An embodiment of the box tube forming device 53 comprises a turning device 531 located at the top for turning the flat side plate 100 around the mold device 22, a side pressing device 532 located below the turning device 531 for positioning the side plate 100, and an upper forming device 533 disposed between the side pressing device 532 and the turning device 531 for performing Y-axis bending and shaping on the upper side surface of the side plate 100. The turning device is usually realized by a turning plate, a cylinder, and a connecting rod structure hinged to the turning plate; the side pressing device is usually realized by a side pressing plate and a linear module driving its Y-axis movement; and the upper forming device is usually realized by a roller or a shovel plate, and a linear module driving its Y-axis movement. The working principle is as follows: the side panel feeding mechanism delivers the flat side panel 100 to the top surface of the flipping device 531 for placement, and the mold device 22 also moves to fit above the bottom side of the side panel 100, the bottom side of the mold device 22 overlaps with the bottom side of the side panel 100, and after the flipping device 531 flips the side panel 100 around the mold device 22 from both sides, the mold device 22 drives the side panel 100 to move down between the side pressing devices 532, and the side pressing devices 532 clamp and position the two sides of the side panel 100, and then the upper forming device 533 folds the two sides of the side panel 100 around the mold device 22 again to the top side of the mold device 22, and flattens and shapes it. Since the embryo box and the face paper of the side panel 100 have been pre-fitted and shaped, the box tube forming device 53 only needs to bend the side panel 100. Compared with the existing box tube shaping, which requires fitting, leveling and other operations, the box tube forming device 53 is very simple in structure.

[0052] refer to Figure 6An embodiment of the flip device 531 includes a mounting base 5311 fixed to the top of the support frame 51, and a flip plate 5312 horizontally placed above the mounting base 5311, the flip plate 5312 is hinged to the mounting base 5311 through a hinge shaft 5313 parallel to the inner side edge, and there is a certain horizontal spacing between the hinge shaft 5313 and the inner side edge of the flip plate 5312, and the mounting base 5311 is also provided with a flip driving device 5314 for driving the flip plate 5312 to flip up 90° around the hinge shaft 5313. There is a certain horizontal spacing between the hinge shaft and the flip plate, so that before the forming begins, the flip plate can be used to support the flat side plate 100, and the bottom side of the side plate 100 can be supported by the two sets of flip plates of the forming devices on both sides to prevent the middle of the side plate 100 from collapsing downward, and when the flip plate is flipped 90°, the spacing between the two sets of flip plates is just enough for the bottom side of the side plate 100 to fall downward into the side pressure device. Among them, the flip drive device 5314 can adopt a simple cylinder and connecting rod structure, and one end of the connecting rod is hinged to the bottom surface of the flip plate; of course, a more sophisticated structure can also be adopted, such as setting a hinge structure between the cylinder and the connecting rod, and setting a linear guide pair at the hinge, as well as a sensor for accurately controlling the moving distance of the linear guide pair, which is not only convenient for adjusting the cylinder installation position, but also can increase the stability and accuracy of the flipping movement, and reduce the reverse impact of the flipping process on the active end of the cylinder.

[0053] refer to Figure 7 An embodiment of the side pressure device 532 includes a side pressure plate 5321 vertically arranged on the inner side of the support frame 51, a lower limit plate 5322 horizontally fixed to the lower edge of the inner side of the side pressure plate 5321, and the lower limit plate 5322 is a height-adjustable structure. It also includes a side pressure mounting plate 5323 fixed on the support frame 51, and a Y-axial driving device 5324 for driving the side pressure plate 5321 is provided between the side pressure mounting plate 5323 and the side pressure plate 5321. The Y-axial driving device 5324 can be a cylinder guide column structure or a motor screw structure. When the mold device drives the side plate 100 to fall into the side pressure device, the bottom side of the side plate 100 is supported by the lower limit plate, and the side pressure plate makes the side of the side plate 100 close to the side of the mold assembly to facilitate the upper molding device to perform molding operations. When the shaping is completed, the mold assembly and the box body need to be moved to the next station, and the Y-axis drive device will drive the side pressure plate to loosen along the Y-axis, so that the bottom side of the box body is separated from the lower limit plate. The height-adjustable lower limit plate is easy to adjust for boxes of different sizes.

[0054] refer to Figure 5 and Figure 8, an embodiment of the box bottom forming mechanism 6, the box bottom forming mechanism 6 includes a first box bottom forming device 61 for bending and shaping the box bottom in the Z-axis direction, and a second box bottom forming device 62 for shaping the box bottom in the Y-axis direction, and the second box bottom forming device 62 includes two groups arranged relatively and respectively installed on the two groups of the support frames 51. Usually, the first box bottom forming device 61 includes two groups arranged relatively at the upper and lower sides to bend and shape the upper and lower sides of the box bottom respectively, and each group of the first box bottom forming device 61 may include a driving cylinder 611 and a shaping fixture 612, and the specific setting angle can be adjusted according to factors such as the installation space. In order to be suitable for shaping boxes of different sizes, the spacing between the two groups of first box bottom forming devices 61 is adjustable. The second box bottom forming device 62 is the same as the first box bottom forming device 61 in principle. The two groups of second box bottom forming devices 62 are respectively installed on the two groups of support frames 51, and the spacing can be adjusted with the support frames 51, which simplifies the equipment structure.

[0055] refer to Fig. 9 An embodiment of the mold device 22, the mold device 22 includes four groups of square side strips 222 corresponding to the side edges of the box body, and the end faces of the side strips 222 corresponding to the bottom of the box are provided with a bottom plate adsorption device 221, i.e., a vacuum suction cup, wherein the two opposite surfaces of the mold device 22 are provided with a mold fixing plate 223 located between the two groups of the side strips 222, and an adjustment block 224, and a mold gasket 225 for adjusting the spacing is also provided between the two groups of the mold fixing plates 223. By replacing mold fixing plates of different widths and mold gaskets of different thickness combinations, the size of the mold device can be adjusted to adapt to the molding operation of boxes of different sizes. The adjustment blocks and mold gaskets can be prepared in multiple groups of different thickness sizes, and each group can be positioned and fixed in series by positioning columns, so as to achieve rapid adjustment of the mold size.

[0056] refer to Fig.10, an embodiment of the bottom plate feeding mechanism 3, the bottom plate feeding mechanism 3 includes a storage rack 31, a positioning device 32, a first bottom plate conveying device 33 for conveying the bottom plate from the storage rack 31 to the positioning device 32, and a second bottom plate conveying device 34 for conveying the bottom plate from the positioning device 32 to the bottom plate adsorption device 221. The storage rack, the positioning device, the first bottom plate conveying device and the second bottom plate conveying device can all be implemented by conventional technical means in the art; for example, the bottom plate can be stacked on the storage rack, the bottom surface of the storage rack is connected to the first bottom plate conveying device, the first bottom plate conveying device pushes the bottom plates one by one horizontally from the bottom of the storage rack to the positioning device to complete the positioning, the first bottom plate conveying device includes a push plate fixture and a linear module for driving the push plate fixture to move, and the second bottom plate conveying device can adopt a manipulator structure with a vacuum suction cup to convey the bottom plate located on the positioning device to the bottom plate adsorption device. Since the bottom plate is an independent hard plate and does not require pre-processing, the storage rack form is more efficient and the structure is simpler.

[0057] refer to Fig.11 , an embodiment of the box-retracting mechanism 7, the box-retracting mechanism 7 comprises a support plate 71 in the X-axis direction located below the box-tube forming mechanism 5, a box-clamping device 72 arranged on both sides of the support plate 71, and a box-retracting driving device 73 driving the box-clamping device 72 to move along the support plate 71, and the box-retracting driving device can adopt an X-axis linear driving device, such as a motor, a lead screw, a slide rail substructure or a motor, a pulley mechanism; the support plate 71 and the mold device 22 are located in the same vertical plane, and the box-clamping device 72 comprises a side baffle 721 for clamping the box body, and a stop edge 722 extending inward from the side baffle. When the box body completes the shaping of the bottom of the box body, the mold device drives the box body into the box-clamping device, and the stop edges on both sides block the edges of the box mouth, and the mold device withdraws in the reverse direction to complete the box-retracting. After the box-retracting is completed, the box-retracting driving device drives the box body into the box mouth forming mechanism for box mouth shaping. The box-retracting mechanism takes into account both the box-retracting and the transmission operation, and the process is smooth and will not damage the box body. The end of the supporting plate 71 is also provided with a baffle 74 against the bottom of the box body, and the position of the baffle 74 is adjustable. The baffle 74 and the box clamping device 72 together position the box body, which is convenient for subsequent box opening shaping; the position of the baffle is adjustable and can be applied to boxes of different sizes.

[0058] refer to Fig.12, an embodiment of the box mouth forming mechanism 8, the box mouth forming mechanism 8 includes a horizontally arranged top pressure plate 81, and a top pressure driving device 82 for driving the top pressure plate 81 to rise and fall, and the top pressure plate 81 is fixed with a downwardly extending lower folding portion 83 and an X-axially bent edge wrapping device 84 at one end corresponding to the box mouth. The top pressure driving device 82 can be implemented by a cylinder, a guide column and a guide sleeve structure; the edge wrapping device 84 is a conventional technology in the field, such as being implemented by a cylinder and an edge wrapping fixture. Its working principle is: after the box body is positioned by the baffle plate and the box clamping device on all sides, the top side of the box body is limited by the top pressure plate, and during the downward pressing process, the lower folding portion bends the surface paper coming out of the box mouth downward, and then the edge wrapping device bends and fits it into the box.

[0059] refer to Figure 4 and Fig.11 , further, it also includes a box discharging mechanism 9, the box discharging mechanism 9 includes a box discharging conveyor belt 91 in the Y-axis direction, and a box pushing device 92 for pushing the box body from the box mouth forming mechanism 8 into the box discharging conveyor belt 91; the side plate feeding mechanism 4 includes a feeding conveyor belt 41 parallel to the top of the box discharging conveyor belt 91. The box pushing device 92 is composed of a cylinder and a push plate. When the box mouth forming mechanism 8 completes shaping, the box clamping device 72 returns to the box discharging station, and then the box body is pushed onto the box discharging conveyor belt by the push plate. The feeding conveyor belt 41 can be provided with a surface adsorption structure, and a deviation correction device 411 is provided to position the side plate 100 laid thereon; the deviation correction device 411 includes a cylinder and a plurality of levers driven by the cylinder, and the levers driven by the cylinder correct the edges of the side plate 100.

[0060] The above description does not limit the technical scope of the present invention in any way. Any modifications, equivalent changes and modifications made to the above embodiments based on the technical essence of the present invention are still within the scope of the technical solution of the present invention.

Claims

1. A packaging box forming machine, used for forming a square cylindrical box body with a blank box, characterized in that: Comprising a rack and mounted in the rack: Two groups of mold mechanisms are arranged in parallel along the Y-axis direction, the mold mechanism includes a mold moving device having an X-axis linear module and a Z-axis linear module, and a mold device driven by the mold moving device, the outer end of the mold device corresponds to the inner cavity of the box body, the end surface of the mold device corresponding to the bottom of the box has a bottom plate adsorption device, and the two groups of mold devices are located on the same vertical plane; A bottom plate feeding mechanism, used for conveying the bottom plate of the box body to the bottom plate adsorption device; The side plate feeding mechanism is used to convey the side plates of the box body to the forming starting station; The box barrel forming mechanism is used to shape the side plate into a box barrel around the mold device, including two sets of support frames arranged opposite to each other along the Y-axis direction, a Y-axis linear module driving the support frames to move, and a box barrel forming device arranged on the support frames; A box bottom forming mechanism, used for shaping the edge of the side panel toward the box bottom until it fits with the bottom panel; A box-removing mechanism, used for removing the box body from the mold device; The box mouth forming mechanism is arranged behind the box withdrawing mechanism and is used for shaping the edge of the side plate toward the box mouth.

2. A packaging box forming machine according to claim 1, characterized in that: The box tube forming device includes a flipping device located at the top for flipping the flat side panel around the mold device, a side pressing device located below the flipping device for positioning the side panel, and an upper forming device arranged between the side pressing device and the flipping device for performing Y-axial bending and shaping on the upper side surface of the side panel.

3. A packaging box forming machine according to claim 2, characterized in that: The flipping device includes a mounting base fixed to the top of the support frame, and a flipping plate horizontally placed above the mounting base. The flipping plate is hinged to the mounting base through a hinge axis parallel to the inner side edge. There is a certain horizontal spacing between the hinge axis and the inner side edge of the flipping plate. The mounting base is also provided with a flipping drive device for driving the flipping plate to flip up 90° around the hinge axis.

4. A packaging box forming machine according to claim 2, characterized in that: The side pressure device includes a side pressure plate vertically arranged on the inner side of the support frame, a lower limit plate horizontally fixed to the lower edge of the inner side of the side pressure plate, the lower limit plate is a height-adjustable structure, and also includes a side pressure mounting plate fixed on the support frame, and a Y-axis driving device for driving the side pressure plate is provided between the side pressure mounting plate and the side pressure plate.

5. A packaging box forming machine according to claim 1, characterized in that: The box bottom forming mechanism includes a first box bottom forming device for bending and shaping the box bottom in the Z-axis direction, and a second box bottom forming device for shaping the box bottom in the Y-axis direction. The second box bottom forming device includes two groups arranged opposite to each other and respectively installed on the two groups of support frames.

6. A packaging box forming machine according to claim 1, characterized in that: The mold device includes four groups of square side strips corresponding to the side edges of the box body, and the end faces of the side strips corresponding to the bottom of the box are provided with bottom plate suction cups, wherein two opposite surfaces of the mold device are provided with mold fixing plates located between the two groups of the side strips, and adjustment blocks, and mold gaskets for adjusting the spacing are also provided between the two groups of the mold fixing plates.

7. A packaging box forming machine according to claim 1, characterized in that: The bottom plate feeding mechanism includes a storage rack, a positioning device, a first bottom plate conveying device for conveying the bottom plate from the storage rack to the positioning device, and a second bottom plate conveying device for conveying the bottom plate from the positioning device to the bottom plate adsorption device.

8. The packaging box forming machine according to claim 1, characterized in that: The box ejection mechanism includes an X-axial support plate located below the box tube forming mechanism, a box clamping device arranged on both sides of the support plate, and a box ejection driving device that drives the box clamping device to move along the support plate; the support plate and the mold device are located in the same vertical plane, and the box clamping device includes a side baffle plate for clamping the box body, and a baffle edge extending inward from the side baffle plate.

9. The packaging box forming machine according to claim 1, characterized in that: The box mouth forming mechanism includes a horizontally arranged top pressure plate and a top pressure driving device for driving the top pressure plate to rise and fall. The top pressure plate is fixed with a downwardly extending lower folding portion and an X-axially bent edge wrapping device at one end corresponding to the box mouth.

10. The packaging box forming machine according to claim 1, characterized in that: It also includes a box discharging mechanism, which includes a box discharging conveyor belt in the Y-axis direction and a box pushing device for pushing the box body from the box mouth forming mechanism into the box discharging conveyor belt; the side plate feeding mechanism includes a feeding conveyor belt parallel to the top of the box discharging conveyor belt.

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