Carton boxing equipment
The automated carton packing equipment enables the automated stacking and flipping of cartons and boxes, solving the problems of low efficiency and non-standardization in manual packing, improving packing efficiency and safety, and meeting the standardization requirements of end customers.
Patent Information
- Application Number
- CN202423233560.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-26
- Publication Date
- 2025-12-19
- Estimated Expiration
- 2034-12-26
AI Technical Summary
The existing material tray packaging process suffers from low efficiency, non-standardization and error-proneness due to manual packing, and cumbersome material tracking, making it difficult to meet the standardization requirements of end customers.
Design an automated cardboard box packing equipment, including a cardboard box conveyor line, a box pushing mechanism, a cardboard box stacking platform, a cardboard box handling robot, and a carton conveyor line. The robot and flipping mechanism realize the automated stacking and flipping of cardboard boxes and cartons. Combined with a vision inspection system to take pictures of labels, the equipment ensures standardized packing and efficiency.
It has enabled automated packing of material trays and cartons, improving packing efficiency and safety, reducing the risk of cartons falling, and ensuring uniform packing standards and accurate label detection.
Smart Images

Figure CN223686930U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to tray packaging technical field, especially in paper box equipment. BACKGROUND
[0002] At present, tray packaging stays in the stage of manual packing, and the efficiency is slow and the packaging is not uniform and standard, which is easy to make mistakes and bring unnecessary losses. Nowadays, many terminal customers require standardization of tray packaging. Based on this background, a professional tray packaging production line is developed to standardize the packaging process and improve the efficiency and quality control ability. As a back-end packaging process, the existing way of tray box packaging is manual operation, which is easy to cause the paper box to be not neat and even broken, and the production efficiency is slow. The material tracking process in the packing process is also relatively complicated.
[0003] Based on the above-mentioned defects, the present application provides an automatic paper box packing machine, which can standardize the packaging process and save labor cost. SUMMARY
[0004] In order to overcome the shortcomings and deficiencies in the prior art, the purpose of the utility model is to provide a paper box packing equipment.
[0005] The utility model discloses a paper box packing equipment, including machine table, be equipped with paper box conveying line, push box mechanism, paper box stacking platform, paper box handling manipulator and paper box conveying line on the machine table, one side of paper box conveying line is equipped with paper box turnover mechanism, the other side is equipped with limit cylinder, be equipped with paper box stacking positioning mechanism on paper box stacking platform, the both sides of paper box stacking positioning mechanism are equipped with paper box mouth opening mechanism respectively. The paper box handling manipulator takes the paper box from the paper box conveying line, and places the paper box on the paper box stacking platform for stacking. When the paper box handling manipulator takes the paper box, it needs to be turned over to the front, so that the paper box is easy to enter the box and facilitate the label detection.
[0006] As an improvement of the utility model paper box packing equipment, the paper box handling manipulator takes the paper box from the paper box conveying line and carries to the paper box stacking platform for stacking. The paper box conveying line conveys the paper box to the turnover position. The paper box turnover mechanism drives the paper box to turn over 90 degrees, so that the opening of the paper box faces the paper box stacking platform. The paper box mouth opening mechanism opens the opening of the paper box. When the paper box stacking platform stacks enough paper boxes, the push box mechanism pushes the stacked paper boxes into the paper box. The push box mechanism and the paper box mouth opening mechanism reset. The paper box turnover mechanism drives the paper box to turn over 90 degrees to the paper box conveying line and conveys it to the visual station for label detection.
[0007] As an improvement of the paper box packing equipment, the paper box turnover mechanism comprises a turnover shaft and a turnover control motor for controlling rotation of the turnover shaft, both ends of the turnover shaft are connected to the shaft seat through bearings respectively, the turnover control motor is installed on the motor mounting plate, a driving gear is arranged on the output shaft of the turnover control motor, a driven gear is arranged on one end of the turnover shaft, the driving gear is engaged with the driven gear, a plurality of mounting plates are arranged on the turnover shaft at intervals, a plurality of the mounting plates are commonly installed with a turnover side plate, suction disc fixing seats are arranged on both sides of the turnover side plate respectively, suction discs are arranged on the suction disc fixing seats, and the suction discs extend out of the suction disc through holes of the turnover side plate.
[0008] As an improvement of the paper box packing equipment, one end of the turnover shaft is provided with an inductive sheet, an inductor is arranged on the shaft seat, a notch is arranged on the inductive sheet, and the turnover control motor stops rotating the turnover shaft when the notch on the inductive sheet corresponds to the inductor.
[0009] As an improvement of the paper box packing equipment, the paper box carrying manipulator comprises a gantry support, an X-axis servo module is arranged on the cross beam of the gantry support, the X-axis servo module controls movement of a Z-axis servo module, the Z-axis servo module controls movement of a cylinder mounting plate, a bidirectional clamping cylinder is arranged on the cylinder mounting plate, the bidirectional clamping cylinder controls clamping actions of two clamping supports, a clamping suction disc is arranged on one of the clamping supports, a motor mounting plate is arranged on the other clamping support, a paper box rotation control motor, a driving pulley and a driven pulley are arranged on the motor mounting plate, the driving pulley and the driven pulley are connected through a synchronous belt, the driving pulley is installed on the output shaft of the paper box rotation control motor, the driven pulley is arranged on a rotating shaft, a clamping suction plate is arranged on the other end of the rotating shaft, the clamping suction plate and the clamping suction disc commonly clamp the paper box, and the paper box rotation control motor can drive the clamped paper box to rotate and turn over.
[0010] As an improvement of the paper box packing equipment, the paper box pushing mechanism is located on one side of the paper box stacking platform, the paper box pushing mechanism comprises a paper box pushing cylinder mounting seat, a paper box pushing cylinder is arranged on the paper box pushing cylinder mounting seat, a push plate is arranged on the piston rod end of the paper box pushing cylinder, two guide rods are arranged on the push plate at intervals, and the two guide rods are arranged on the paper box pushing cylinder mounting seat through guide sleeves.
[0011] As an improvement of the paper box packing equipment, the paper box supporting mechanism comprises a supporting cylinder mounting plate, a supporting cylinder and a rotating rod mounting seat are arranged on the supporting cylinder mounting plate, the rotating rod is mounted on the rotating rod mounting seat through a bearing, a connecting seat is arranged at the bottom of the rotating rod, a supporting plate is arranged at the upper end of the rotating rod, a U-shaped connecting piece is arranged at the piston rod end of the supporting cylinder, the connecting seat is movably connected to the U-shaped connecting piece through a pin, and the supporting cylinder can drive the rotating rod to rotate.
[0012] As an improvement of the paper box packing equipment, the paper box stacking positioning mechanism comprises a positioning support and a positioning cylinder, the positioning support is mounted on a rotating rod, rotating rod connecting seats are arranged at the two ends of the rotating rod, the positioning cylinder is mounted on a cylinder mounting seat, a second U-shaped connecting piece is arranged at the piston rod end of the positioning cylinder, the rotating rod connecting seat is movably connected to the second U-shaped connecting piece through a pin, and a plurality of roller wheels are arranged on the positioning support at intervals; the paper box stacking positioning mechanism has the functions of stacking and positioning paper boxes and guiding and pushing the paper boxes, can make the paper boxes neatly and uniformly stacked during stacking, has the functions of positioning and guiding during the paper box entering the box, and can avoid failure of the paper box entering the box.
[0013] When the paper box stacking platform stacks the paper boxes, the positioning cylinder drives the positioning support to be flipped to a vertical state, when the pushing mechanism pushes the paper boxes, the positioning cylinder drives the positioning support to be flipped to a horizontal state, and the paper boxes can be guided to move into the carton along the roller wheels.
[0014] As an improvement of the paper box packing equipment, the number of the paper boxes stacked on the paper box stacking platform is 6, 9 or 12. When the number of the paper boxes stacked on the paper box stacking platform is 6, the paper boxes are stacked in two rows, and each row has three layers; when the number of the paper boxes stacked on the paper box stacking platform is 9, the paper boxes are stacked in three rows, and each row has three layers; and when the number of the paper boxes stacked on the paper box stacking platform is 12, the paper boxes are stacked in four rows, and each row has three layers.
[0015] The paper box packing equipment of the utility model realizes the free rotating action of the paper box and the carton, reduces a lot of actions and reduces the risk of the paper box falling for the packing process, improves the safety of the tray paper box packing, the carton of the utility model adopts the side-lying mode to make the paper box directly pushed into the carton, after the paper box enters the carton, the carton is flipped to the vertical state to make the box mouth upward, and the carton is directly flipped to the carton conveying line, without needing to be carried back and forth, which is convenient and fast, and improves the packing efficiency. BRIEF DESCRIPTION OF DRAWINGS
[0016] Figure 1 It is the perspective view of the utility model;
[0017] Figure 2is a perspective view of the carton turnover mechanism of the utility model;
[0018] Figure 3 is a perspective view of the carton carrying manipulator of the utility model;
[0019] Figure 4 is a position view of the push box mechanism, the carton stacking positioning mechanism, the carton supporting mechanism and the carton stacking platform of the utility model;
[0020] Reference signs are:
[0021] 1, machine table;
[0022] 2, carton conveying line;
[0023] 3, push box mechanism; 31, push box cylinder mounting seat, 32, push box cylinder, 33, push plate, 34, guide rod;
[0024] 4, carton stacking platform;
[0025] 5, carton carrying manipulator, 51, gantry support, 52, X-axis servo module, 53, Z-axis servo module, 54, cylinder mounting plate, 55, two-way clamping cylinder, 56, clamping support, 57, clamping suction disc, 58, motor mounting plate, 59, carton rotation control motor, 50, driving pulley, 501, driven pulley, 502, clamping suction plate;
[0026] 6, carton conveying line;
[0027] 7, carton turnover mechanism, 71, turnover shaft, 72, turnover control motor, 73, shaft seat, 74, driving gear, 75, driven gear, 76, mounting plate, 77, turnover side plate, 78, suction disc fixing seat, 79, suction disc, 70, inductor, 701, inductor;
[0028] 8, limit cylinder;
[0029] 9, carton stacking positioning mechanism, 91, positioning support, 92, positioning cylinder, 93, rotating rod, 94, rotating rod connecting seat, 95, second U-shaped connecting piece, 96, roller;
[0030] 10, carton supporting mechanism, 101, supporting cylinder mounting plate, 102, supporting cylinder, 103, rotating rod mounting seat, 104, rotating rod, 105, connecting seat, 106, supporting plate, 107, U-shaped connecting piece;
[0031] 100, carton;
[0032] 200, carton. DETAILED DESCRIPTION
[0033] The technical solutions in the embodiments of the present application will be clearly and completely described with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments of the present application, all other embodiments obtained by those skilled in the art without creative efforts fall within the scope of the present application.
[0034] It should be noted that all directional indications (such as up, down, left, right, front, back, etc.) in the embodiments of the present application are only used to explain the relative positional relationship, movement condition, etc. between components in a certain specific posture (as shown in the drawings), and if the specific posture changes, the directional indications will also change accordingly.
[0035] In addition, the description of "first", "second" and the like in the present application is only for the purpose of description, and cannot be understood as indicating or implying the relative importance of the indicated technical features or implicitly indicating the number of the indicated technical features. Therefore, the features limited by "first", "second" can explicitly or implicitly include at least one of the features. In addition, the technical solutions of each embodiment can be combined with each other, but it must be based on the realization of ordinary skilled in the art, when the combination of technical solutions appears contradictory or unachievable, it should be considered that the combination of technical solutions does not exist, and is not within the protection scope required by the present application.
[0036] As shown in FIG. Figures 1-4 A carton packing equipment, including a machine table 1, the machine table 1 is provided with a carton conveying line 2, a carton pushing mechanism 3, a carton stacking platform 4, a carton handling manipulator 5 and a carton conveying line 6, one side of the carton conveying line 6 is provided with a carton turnover mechanism 7, the other side is provided with a limiting cylinder 8, when the carton conveying line 6 conveys the carton to the specified position, the limiting cylinder 8 can limit the movement of the carton, the carton stacking platform 4 is provided with a carton stacking positioning mechanism 9, and the carton stacking positioning mechanism 9 is provided with a carton supporting mechanism 10 on both sides. The carton handling manipulator 5 takes the carton from the carton conveying line 2 and places the carton on the carton stacking platform 4 for stacking, and the carton handling manipulator 5 needs to turn the carton to the front when taking the carton, so that the carton is easy to be detected by photographing after being put into the box.
[0037] Preferably, the carton conveying mechanism 5 takes the cartons from the unloading position of the carton conveying line 2 and conveys them to the carton stacking platform 4 for stacking, the carton box conveying line 6 conveys the carton box to the turning position, the carton box turning mechanism 7 turns the carton box by 90 degrees so that the opening of the carton box faces the direction of the carton stacking platform 4, the carton box opening mechanism 10 opens the opening of the carton box, when the carton stacking platform 4 stacks a sufficient number of cartons, the carton pushing mechanism 3 pushes the stacked cartons 100 into the carton box 200, the carton pushing mechanism 3 and the carton box opening mechanism 10 are reset, the carton box turning mechanism 7 turns the carton box by 90 degrees to the carton box conveying line 6 and conveys it to the visual station, and the CCD camera takes a photo of the label of the carton for detection.
[0038] Preferably, the carton box turning mechanism 7 comprises a turning shaft 71 and a turning control motor 72 for controlling the rotation of the turning shaft 71, both ends of the turning shaft 71 are connected to the shaft seat 73 through bearings, the turning control motor 72 is installed on the motor mounting plate, a driving gear 74 is arranged on the output shaft of the turning control motor 72, a driven gear 75 is arranged on one end of the turning shaft 71, the driving gear 74 is engaged with the driven gear 75, a plurality of mounting plates 76 are arranged on the turning shaft 71 at intervals, the mounting plates 76 are collectively installed with a turning side plate 77, suction disc fixing seats 78 are arranged on both sides of the turning side plate 77, and suction discs 79 are arranged on the suction disc fixing seats 78 and extend out of the suction disc through holes of the turning side plate 77.
[0039] Preferably, one end of the turning shaft 71 is provided with a sensing sheet 70, the shaft seat 73 is provided with a sensor 701, the sensing sheet 70 is provided with a notch, and when the notch on the sensing sheet 70 corresponds to the sensor 701, the turning control motor 72 stops rotating the turning shaft 71.
[0040] Preferably, the carton conveying mechanism 5 comprises a gantry bracket 51, an X-axis servo module 52 is arranged on the cross beam of the gantry bracket 51, the X-axis servo module 52 controls the movement of a Z-axis servo module 53, the Z-axis servo module 53 controls the movement of a cylinder mounting plate 54, a bidirectional clamping cylinder 55 is arranged on the cylinder mounting plate 54, the bidirectional clamping cylinder 55 controls two clamping brackets 56 to perform clamping actions, a clamping suction disc 57 is arranged on one of the clamping brackets 56, a motor mounting plate 58 is arranged on the other clamping bracket 56, a carton rotating control motor 59, a driving pulley 50 and a driven pulley 501 are arranged on the motor mounting plate 58, the driving pulley 50 and the driven pulley 501 are connected through a synchronous belt, the driving pulley 50 is installed on the output shaft of the carton rotating control motor 59, the driven pulley 501 is arranged on a rotating shaft, the other end of the rotating shaft is provided with a clamping suction plate 502, the clamping suction plate 502 and the clamping suction disc 57 jointly clamp the carton 100, and the carton rotating control motor 59 can rotate the clamped carton 100 to turn over.
[0041] Preferably, the push box mechanism 3 is located on one side of the paper box stacking platform 4, the push box mechanism 3 comprises a push box cylinder mounting seat 31, a push box cylinder 32 is arranged on the push box cylinder mounting seat 31, a push plate 33 is arranged on the piston rod end of the push box cylinder 32, two guide rods 34 are arranged on the push plate 33 in an interval, and the two guide rods 34 pass through the guide sleeves and are arranged on the push box cylinder mounting seat 31.
[0042] Preferably, the paper box opening supporting mechanism 10 comprises a supporting cylinder mounting plate 101, a supporting cylinder 102 and a rotating rod mounting seat 103 are arranged on the supporting cylinder mounting plate 101, a rotating rod 104 is mounted on the rotating rod mounting seat 103 through a bearing, a connecting seat 105 is arranged on the bottom of the rotating rod 104, a supporting plate 106 is arranged on the upper end of the rotating rod 104, a U-shaped connecting piece 107 is arranged on the piston rod end of the supporting cylinder 102, the connecting seat 105 is movably connected to the U-shaped connecting piece 107 through a pin, the supporting cylinder 102 can drive the rotating rod 104 to rotate, the rotating rod 104 can drive the supporting plate 106 to rotate, and the supporting plate 106 can support the opening of the paper box to be opened.
[0043] Preferably, the paper box stacking positioning mechanism 9 comprises a positioning bracket 91 and a positioning cylinder 92, the positioning bracket 91 is mounted on a rotating rod 93, rotating rod connecting seats 94 are arranged at two ends of the rotating rod 93, the positioning cylinder 92 is mounted on a cylinder mounting seat, a second U-shaped connecting piece 95 is arranged on the piston rod end of the positioning cylinder 92, the rotating rod connecting seats 94 are movably connected to the second U-shaped connecting piece 95 through pins, and a plurality of rollers 96 are arranged on the positioning bracket 91 in an interval; the paper box stacking positioning mechanism 9 has the functions of stacking and positioning the paper boxes and guiding the paper boxes to move, can make the paper boxes 100 be stacked in an orderly and unified manner in the process of stacking, and can avoid the failure of the paper boxes 100 to be put into the carton;
[0044] When the paper boxes are stacked on the paper box stacking platform 4, the positioning cylinder 92 drives the positioning bracket 91 to be flipped to a vertical state, when the paper boxes are pushed by the push box mechanism 3, the positioning cylinder 92 drives the positioning bracket 91 to be flipped to a horizontal state, and the paper boxes can be guided to move into the paper box 200 along the rollers 96.
[0045] Preferably, the number of the paper boxes 100 stacked on the paper box stacking platform 4 is 6, 9 or 12. When the number of the paper boxes stacked on the paper box stacking platform is 6, the paper boxes are stacked in two rows and three layers in each row, when the number of the paper boxes stacked on the paper box stacking platform is 9, the paper boxes are stacked in three rows and three layers in each row, and when the number of the paper boxes stacked on the paper box stacking platform is 12, the paper boxes are stacked in four rows and three layers in each row.
[0046] The working process of the utility model: the paper box flows in through the paper box conveying line 2, after being pressed by the hard limiting at the end of the paper box conveying line 2, the paper box carrying mechanical hand 5 carries out adsorption clamping through two sponge suction cups (clamping suction disc and clamping suction plate), then rotates 90 degrees through the synchronous belt transmission mode through the rotating shaft in the center of the sponge suction cup, makes the side of the paper box face up, then places on the paper box stacking platform 4, the paper box carrying mechanical hand 5 resets to the initial position, repeats the material taking action, stacks two layers of paper boxes, three boxes per layer; the paper box that opens well flows in through the roller line (or paper box conveying line 6), after the paper box reaches the limiting air cylinder 8 position, blocks and stops, after the side suction cup on the paper box turnover mechanism 7 adsorbs the paper box, the paper box is turned over 90 degrees, the opening is towards the paper box direction, the opening plate 106 is inserted into the paper box opening and props open the paper box, the push box air cylinder 32 slowly pushes the stacked paper box into the paper box, after entering the box, the push box air cylinder 32 and the opening plate 106 reset to the initial position, the paper box is turned over 90 degrees and returns to the roller line (or paper box conveying line 6), the box that fills the paper box flows out to the visual station, the label of the paper box is photographed and checked, finally flows out to the sealing station.
[0047] Although the embodiments of the utility model have been shown and described, it can be understood by those skilled in the art that various changes, modifications, replacements and variations can be made to these embodiments without departing from the principles and structures of the utility model, the scope of the utility model is defined by the appended claims and its equivalent scope.
Claims
1. A cartoning apparatus comprising a table, characterized in that, The machine is provided with a carton conveying line, a carton pushing mechanism, a carton stacking platform, a carton carrying manipulator and a carton box conveying line.
2. The cartoning apparatus of claim 1 wherein, The carton carrying manipulator takes cartons from the unloading position of the carton conveying line and carries them to the carton stacking platform for stacking, the carton box conveying line conveys carton boxes to the turning position, the carton box turning mechanism drives the carton box to turn 90 degrees, so that the opening of the carton box faces the carton stacking platform, the carton box opening mechanism opens the opening of the carton box, when the carton stacking platform stacks a sufficient number of cartons, the carton pushing mechanism pushes the stacked cartons into the carton box, the carton pushing mechanism and the carton box opening mechanism reset, the carton box turning mechanism drives the carton box to turn 90 degrees onto the carton box conveying line and is conveyed to a visual station for photographing and detecting the label of the carton.
3. The cartoning apparatus of claim 2 wherein, The carton box turning mechanism comprises a turning shaft and a turning control motor for controlling the rotation of the turning shaft, both ends of the turning shaft are connected to the shaft seat through bearings, the turning control motor is installed on the motor mounting plate, a driving gear is arranged on the output shaft of the turning control motor, a driven gear is arranged on one end of the turning shaft, the driving gear is engaged with the driven gear, a plurality of mounting plates are arranged on the turning shaft at intervals, a plurality of the mounting plates are jointly installed with a turning side plate, suction disc fixing seats are arranged on both sides of the turning side plate, suction discs are arranged on the suction disc fixing seats, and the suction discs extend out of the suction disc through holes of the turning side plate.
4. The cartoning apparatus of claim 3 wherein, One end of the turning shaft is provided with a sensing sheet, a sensor is arranged on the shaft seat, a notch is arranged on the sensing sheet, and when the notch on the sensing sheet corresponds to the sensor, the turning control motor stops rotating the turning shaft.
5. The cartoning apparatus of claim 1 wherein, The carton carrying manipulator comprises a gantry support, an X-axis servo module is arranged on the cross beam of the gantry support, the X-axis servo module controls the movement of a Z-axis servo module, the Z-axis servo module controls the movement of a cylinder mounting plate, a bidirectional clamping cylinder is arranged on the cylinder mounting plate, the bidirectional clamping cylinder controls the clamping action of two clamping supports, one of the clamping supports is provided with a clamping suction disc, the other clamping support is provided with a motor mounting plate, a carton rotating control motor, a driving pulley and a driven pulley are arranged on the motor mounting plate, the driving pulley and the driven pulley are connected through a synchronous belt, the driving pulley is installed on the output shaft of the carton rotating control motor, the driven pulley is arranged on a rotating shaft, a clamping suction plate is arranged on the other end of the rotating shaft, the clamping suction plate and the clamping suction disc jointly clamp the carton, and the carton rotating control motor can drive the clamped carton to rotate and turn over.
6. The cartoning apparatus of claim 1 wherein, The push box mechanism is located on one side of the paper box stacking platform, and comprises a push box cylinder mounting seat, a push box cylinder being arranged on the push box cylinder mounting seat, and a push plate being arranged on the piston rod end of the push box cylinder.
7. The cartoning apparatus of claim 1 wherein, The paper box supporting mechanism comprises a supporting cylinder mounting plate, a supporting cylinder and a rotating rod mounting seat being arranged on the supporting cylinder mounting plate, a rotating rod being mounted on the rotating rod mounting seat through a bearing, a connecting seat being arranged on the bottom of the rotating rod, a supporting plate being arranged on the upper end of the rotating rod, a U-shaped connecting piece being arranged on the piston rod end of the supporting cylinder, the connecting seat being movably connected to the U-shaped connecting piece through a pin, and the supporting cylinder being capable of driving the rotating rod to rotate.
8. The cartoning apparatus of claim 1 wherein, The paper box stacking positioning mechanism comprises a positioning support and a positioning cylinder, the positioning support being mounted on the rotating rod, two rotating rod connecting seats being arranged on the two ends of the rotating rod, the positioning cylinder being mounted on a cylinder mounting seat, a second U-shaped connecting piece being arranged on the piston rod end of the positioning cylinder, the rotating rod connecting seat being movably connected to the second U-shaped connecting piece through a pin, and a plurality of rollers being arranged on the positioning support at intervals. When the paper box stacking platform stacks paper boxes, the positioning cylinder drives the positioning support to be flipped up to a vertical state, when the push box mechanism pushes the paper boxes, the positioning cylinder drives the positioning support to be flipped to a horizontal state, and the paper boxes can be guided to move into the carton along the rollers.
9. The cartoning apparatus of claim 1 wherein, The number of the paper boxes stacked by the paper box stacking platform is 6, 9 or 12.