Automatic carton nailing machine

Abstract

The utility model relates to an automatic carton nailing machine which comprises a machine frame, an upper conveying mechanism, a lower conveying mechanism, an upper feeding mechanism, a lower feeding mechanism, an edge folding mechanism and a carton nailing mechanism, the lower conveying mechanism is located below the upper conveying mechanism, the upper feeding mechanism is located at one end of the input direction of the upper conveying mechanism, and the lower feeding mechanism is located at the other end of the input direction of the lower conveying mechanism. The lower feeding mechanism is located at one end of the input direction of the lower conveying mechanism. The utility model provides the automatic carton nailing machine which is more stable in paperboard conveying.

Description

Technical Field

[0001] This utility model relates to the field of carton nailing machine technology, specifically to an automatic carton nailing machine. Background Technology

[0002] As an indispensable part of modern logistics, packaging cartons bear the important responsibilities of being containers, protecting products, facilitating transportation, and ensuring aesthetic appeal. The physical performance indicators of packaging cartons serve as the basis for their quality assessment. With the continuous development of various industries, the requirements for the appearance and quality of packaging cartons are becoming increasingly stringent. Simultaneously, with the intensification of market competition and the lowering of barriers to entry in carton production, production costs have become a key factor constraining the development of carton manufacturers. Carton production typically includes corrugated board production, slitting, creasing, slotting, and corner cutting, printing, die-cutting, stapling, and gluing. Currently, some manufacturers have begun to experiment with assembly line production to reduce production costs and improve market competitiveness. The most commonly used type of stapling machine on the market is the cantilever stapling machine, with a smaller number of semi-automatic and fully automatic stapling machines. However, all of these require manual paper edge joining and positioning, resulting in low efficiency, high labor intensity, and significant errors, directly affecting the appearance of the cartons. Furthermore, they are characterized by low production efficiency and high labor intensity.

[0003] Chinese patent document CN103978730B discloses an automatic carton stapler, including a carton folding and forming section, an upper paper feeding section and a lower paper feeding section located on both sides of the feeding end of the carton folding and forming section, and an upper stapler section and a lower stapler section located on both sides of the discharging end of the carton folding and forming section. The carton folding and forming section includes a folding and forming section frame and an upper conveying device and a lower conveying device arranged vertically inside the folding and forming section frame, and also includes a folding and forming cylinder assembly.

[0004] The cardboard for this stapling machine is fed from the upper and lower feeding mechanisms on both sides of the carton folding machine to the upper and lower conveying devices of the carton folding machine. Then, it undergoes folding, conveying, and stapling processes. Because of the folding mechanism, a gap must be set between the upper and lower feeding mechanisms and the carton folding machine to accommodate the folding cylinder. As a result, when the end of the cardboard passes through this gap during conveying, it may sag due to gravity, causing the end to fail to align with the corresponding slot on the carton folding machine. During feeding, the end of the cardboard may hit the side of the conveying mechanism and be crushed, preventing the stapling from being completed. The crushed waste material will also remain in place, affecting subsequent cardboard conveying and damaging a large amount of material. Utility Model Content

[0005] In summary, to overcome the shortcomings of the existing technology, this utility model provides an automatic carton nailing machine with more stable cardboard conveying.

[0006] To achieve the above objectives, this utility model provides the following technical solution: an automatic carton nailing machine, comprising a frame, an upper conveying mechanism, a lower conveying mechanism, an upper feeding mechanism, a lower feeding mechanism, a folding mechanism, and a nailing mechanism. The lower conveying mechanism is located below the upper conveying mechanism, the upper feeding mechanism is located at one end of the input direction of the upper conveying mechanism, and the lower feeding mechanism is located at one end of the input direction of the lower conveying mechanism.

[0007] With this setup, the cardboard is first placed on the upper and lower feeding mechanisms, and then the equipment is started. The upper and lower feeding mechanisms will then feed the cardboard from their respective ends. The distance between the conveying mechanisms and the feeding mechanisms can be set closer together, without affecting the folding and stapling steps on both sides. Furthermore, paper feed rollers, pallets, and other parts can be added between them to assist in transportation and prevent the cardboard from bending during transportation. Since the fold line of the cardboard is parallel to the transportation direction, the cardboard will not bend at the fold line when transported from the end direction, making the transportation process more stable. Only after being transported to the lower conveying mechanism will the fold line of the cardboard fall at the position of the folding mechanism, be folded by the folding mechanism, and then be transported to the stapling mechanism for stapling.

[0008] Furthermore, it also includes a lower pushing mechanism, which is located between the lower feeding mechanism and the lower conveying mechanism, and the length of the lower pushing mechanism is greater than the length of the upper feeding mechanism.

[0009] With this setup, the upper and lower feeding mechanisms can be staggered in the horizontal direction, and the vertical distance between them can be set smaller. The parts of the lower feeding mechanism will not hit the upper feeding mechanism. The cardboard fed from the lower feeding mechanism will first fall onto the lower pushing mechanism, and then be sent to the lower conveying mechanism by the lower pushing mechanism. This allows for the processing of small-height cartons and has strong applicability.

[0010] Furthermore, the lower pushing mechanism includes a first conveyor belt and a plurality of pushing blocks, the plurality of pushing blocks being evenly distributed along the first conveyor belt.

[0011] With this setup, since the cardboard is relatively light, it is more stable to transport the cardboard by pushing it from the side with push blocks instead of relying solely on bottom friction. Multiple push blocks can transport multiple different cardboard sheets.

[0012] Furthermore, the lower conveying mechanism includes a second conveyor belt, and the first conveyor belt and the second conveyor belt are arranged alternately.

[0013] With this setup, when the two conveyors are arranged alternately and transported on the first conveyor belt, the creases of the cardboard can be placed on the first conveyor belt, preventing bending during transport. Once on the second conveyor belt, the bottom of the crease is no longer supported. Even if the cardboard falls due to gravity at this point, it will fall onto the folding mechanism and be pushed by the folding mechanism for folding. The folding line is exactly at the edge of the second conveyor belt, making the folding smoother. Since the distance between two adjacent pushers is usually fixed, if the cardboard being processed is changed to a shorter style, its arrival time on the first conveyor belt will be delayed, causing it to be out of sync with the cardboard fed by the upper feeding mechanism. In this case, the drive motor of the second conveyor belt can be actively rotated to change the initial position of the pushers, allowing the cardboard to arrive on the first conveyor belt earlier and synchronize with the cardboard above. Only one part needs to be adjusted to complete the adaptation, making the operation convenient. When the cardboard arrives on the second conveyor belt, the pushers are usually located at the bottom of the second conveyor belt surface. The cardboard is only pushed when the second conveyor belt rotates to the top. Therefore, changing the position of the pushers will not cause the cardboard to fall directly onto the pushers and become unpushable.

[0014] Furthermore, it also includes a height adjustment mechanism, which includes a first driving member and a first screw. The first driving member drives the first screw to rotate, and when the first screw rotates, it causes the upper feeding mechanism and the upper conveying mechanism to rise or fall.

[0015] With this configuration, when it is necessary to process taller or shorter cartons, the first drive unit can be used to control the rotation of the first screw. During the rotation, the upper feeding mechanism and the upper conveying mechanism can be raised or lowered by the threaded connection, thereby adapting to the processing of cartons of different heights and making it more versatile.

[0016] Furthermore, the height adjustment mechanism also includes two adjustment side plates, which are respectively located on both sides of the upper feeding mechanism and the upper conveying mechanism and connected to them. The first screw is threadedly connected to the adjustment side plates.

[0017] With this configuration, both the upper feeding mechanism and the upper conveying mechanism are mounted on the adjusting side plate, thus achieving their linkage. In this way, the first screw only needs to be threadedly connected to the adjusting side plate to drive its lifting and lowering, which can simultaneously drive the upper feeding mechanism and the upper conveying mechanism to rise or fall, making the lifting and lowering more stable and the operation more convenient.

[0018] Furthermore, the height adjustment mechanism also includes a first synchronous gear, the upper conveying mechanism is provided with a first gear, the lower conveying mechanism is provided with a second gear and a second synchronous belt, the first gear and the second gear respectively drive the upper conveying mechanism and the lower conveying mechanism to operate, the second synchronous belt connects the first gear, the second gear and the first synchronous gear, the first gear and the first synchronous gear are synchronously raised and lowered, and the first synchronous gear and the first gear are respectively located on the inner side and the outer side of the second synchronous belt.

[0019] With this configuration, the second synchronous belt, once fitted onto the first and second gears, can synchronize the running speeds of the conveyor belts in the upper and lower conveyor mechanisms. The first synchronous gear not only provides tension to the second synchronous belt, but also, when the upper conveyor mechanism is raised or lowered by the height adjustment mechanism, the lengths of the synchronous belts on either side of the first and second synchronous gears, located inside and outside the second synchronous belt respectively, will increase and decrease respectively, thus canceling each other out. This achieves the effect of maintaining the linkage between the upper and lower conveyor mechanisms even after raising or lowering.

[0020] Furthermore, the lower conveying mechanism is provided with a first linkage wheel set, and the second synchronous belt is sleeved on the first linkage wheel set.

[0021] With this configuration, the first linkage pulley group can adjust the shape of the second synchronous belt by relying on several gears. This way, even if the drive shaft of the lower conveyor mechanism is located at the bottom, the highest point of the second synchronous belt can be opened above the first synchronous gear, ensuring that the first synchronous gear can be pressed in from the outside of the second synchronous belt.

[0022] Furthermore, it also includes a width adjustment mechanism, which includes a second driving member and a second screw. The upper conveying mechanism includes two third conveyor belts, and the lower conveying mechanism includes two second conveyor belts. The second driving member drives the second screw to rotate, and when the second screw rotates, it changes the distance between the two third conveyor belts and the distance between the two second conveyor belts.

[0023] With this setup, when wider or narrower cartons need to be processed, the second drive unit can be used to control the rotation of the second screw. During rotation, the two second conveyor belts and two third conveyor belts can be separated or brought together to accommodate cardboard of different widths. This design is convenient to adjust and highly adaptable. The upper and lower feeding mechanisms can be set to a larger width from the beginning, relying on the baffle plate to limit their position without adjustment. The baffle plate can also be equipped with a synchronously linked second screw, moving together with the width adjustment mechanism. An additional adjustment structure can be added to the baffle plate to facilitate size adaptation. Since the cardboard is transported from the ends of the upper and lower conveyor mechanisms, the gap after they separate will not affect the transported cardboard. No baffles or other parts are needed to assist in the transport. The folding mechanism and the nailing mechanism can be directly set on the corresponding conveyor belts and linked with them, or they can be controlled and adjusted independently.

[0024] Furthermore, the shafts of the second and third conveyor belts are provided with strip-shaped keyways whose length is greater than the width of the drive wheels of the second and third conveyor belts.

[0025] With this configuration, when the width of the second and third conveyor belts is adjusted, the drive wheels of the conveyor belts will slide on the shaft. Since the length of the keyway is greater than the width of the second and third conveyor belts, it can always drive the movement of the two conveyor belts and will not be affected by the width adjustment. Attached Figure Description

[0026] Figure 1 This is a schematic diagram of the structure of Embodiment 1 of the present utility model. Figure 1 .

[0027] Figure 2 for Figure 1 Enlarged view of part A.

[0028] Figure 3 for Figure 1 Enlarged view of part B.

[0029] Figure 4 This is a schematic diagram of the structure of Embodiment 1 of the present utility model. Figure 2 .

[0030] Figure 5 for Figure 4 Enlarged view of part C.

[0031] Figure 6 This is a schematic diagram of the structure of Embodiment 1 of the present utility model. Figure 3 .

[0032] Figure 7 for Figure 6 Enlarged view of part D.

[0033] Figure 8 This is a schematic diagram of the installation of the lower pushing mechanism in Embodiment 1 of this utility model.

[0034] Figure 9 for Figure 8 Enlarged view of part E.

[0035] Figure 10 This is a schematic diagram of the installation of the height adjustment mechanism in Embodiment 1 of this utility model.

[0036] Figure 11 This is a schematic diagram of the structure of the rotating shaft with a bar keyway in Embodiment 1 of this utility model.

[0037] Figure 12 This is a schematic diagram of the structure of Embodiment 2 of this utility model.

[0038] The labels in the diagram mean: 1. Frame, 101. Platform, 102. Slide rail, 2. Upper conveyor mechanism, 201. First gear, 202. Third conveyor belt, 3. Lower conveyor mechanism, 301. Lower pushing mechanism, 3011. First conveyor belt, 30111. Bending area, 3012. Push block, 302. Second conveyor belt, 3021. Strip keyway, 303. Second gear, 304. Second synchronous belt, 305. First linkage pulley group, 4. Upper feeding mechanism, 401. Guard plate, 5. Lower feeding mechanism, 6. Folding mechanism, 7. Nailing mechanism, 8. Height adjustment mechanism, 801 802. First driving component, 803. First screw, 804. Screw jack, 805. Adjusting side plate, 806. Sliding block, 807. Connecting shaft, 808. First synchronous belt, 809. First synchronous gear, 9001. Width adjustment mechanism, 9002. Second driving component, 9002. Second screw, 9002. Third gear, 9002. Drive handwheel, 9003. Third synchronous belt, 9004. Second synchronous gear, 9005. Second linkage wheel set, 901. Connecting nut, 902. Nut locking sleeve, 902. Connecting block, 902. First drive motor, 903. Second drive motor. Detailed Implementation

[0039] This specific embodiment is merely an explanation of the present embodiment and is not intended to limit the present embodiment. After reading this specification, those skilled in the art can make modifications to the present embodiment without contributing any inventive step, but such modifications are protected by patent law as long as they fall within the scope of the claims of the present embodiment.

[0040] See appendix Figure 1-11The present invention provides the following technical solution: an automatic carton nailing machine, comprising a frame 1, an upper conveying mechanism 2, a lower conveying mechanism 3, an upper feeding mechanism 4, a lower feeding mechanism 5, a folding mechanism 6, and a nailing mechanism 7. The lower conveying mechanism 3 is located below the upper conveying mechanism 2, the upper feeding mechanism 4 is located at one end of the upper conveying mechanism 2 in the input direction, and the lower feeding mechanism 5 is located at one end of the lower conveying mechanism 3 in the input direction.

[0041] With this setup, the cardboard is first placed on the upper feeding mechanism 4 and the lower feeding mechanism 5, and then the equipment is started. The upper feeding mechanism 4 and the lower feeding mechanism 5 will then feed their respective cardboards from the ends of the upper conveying mechanism 2 and the lower conveying mechanism 3. The distance between the conveying mechanism and the feeding mechanism can be set closer together, without affecting the folding and stapling steps on both sides. In addition, parts such as paper feeding rollers and pallets can be added between the two to assist in transportation and prevent the cardboard from bending during transportation. Moreover, the fold line of the cardboard is parallel to the transportation direction, so the cardboard will not bend at the fold line when transported from the end direction, making the transportation process more stable. Only after being transported to the lower conveying mechanism 3 will the fold line of the cardboard fall at the position of the folding mechanism 6. After being folded by the folding mechanism 6, it is transported to the stapling mechanism 7 for stapling.

[0042] In a preferred embodiment, the lower push mechanism 301 is also included. The lower push mechanism 301 is located between the lower feeding mechanism 5 and the lower conveying mechanism 3, and the length of the lower push mechanism 301 is greater than the length of the upper feeding mechanism 4.

[0043] With this configuration, the upper feeding mechanism 4 and the lower feeding mechanism 5 can be staggered in the horizontal direction, and the vertical distance between them can be set to be smaller. The parts of the lower feeding mechanism 5 will not hit the upper feeding mechanism 4. The cardboard fed from the lower feeding mechanism 5 will first fall on the lower pushing mechanism 301, and then be sent to the lower conveying mechanism 3 by the lower pushing mechanism 301. This allows for the processing of small-height cartons and has strong applicability.

[0044] In this preferred embodiment, the lower pushing mechanism 301 includes a first conveyor belt 3011 and a plurality of push blocks 3012. The plurality of push blocks 3012 are evenly distributed along the first conveyor belt 3011. The above setting is not limited. The first conveyor belt 3011 can be selected from various common conveying forms such as belt, rubber belt, or pull rope with push blocks or push hooks. The same applies to other conveyor belts in this application.

[0045] With this setup, since the cardboard is relatively light, it is more stable to transport the cardboard by pushing it from the side with pusher blocks 3012 instead of relying solely on bottom friction. Multiple pusher blocks 3012 can transport multiple different cardboard sheets.

[0046] In this preferred embodiment, the pusher block 3012 is connected to the surface of the first conveyor belt 3011 by bolts.

[0047] With this configuration, the pusher block 3012 can be easily installed by directly fixing it to the surface of the first conveyor belt 3011 with bolts, and the structure is stable.

[0048] In a preferred embodiment, the lower conveying mechanism 3 includes a second conveyor belt 302, and the first conveyor belt 3011 and the second conveyor belt 302 are arranged alternately.

[0049] With this staggered arrangement, when the cardboard is transported on the first conveyor belt 3011, the creases can be placed on the first conveyor belt 3011, preventing bending at this point during transport. Once on the second conveyor belt 302, the bottom of the crease is no longer supported. Even if the cardboard falls due to gravity at this point, it will land on the folding mechanism 6 and be folded by it. The folding line of the folding mechanism 6 is precisely at the edge of the second conveyor belt 302, resulting in a smoother fold. Since the distance between two adjacent pushers 3012 is usually fixed, if the cardboard being processed is changed to a shorter style, its length will be less than expected when it reaches the first conveyor belt. The feeding time of the conveyor belt 3011 will be delayed, which will cause it to be out of sync with the cardboard fed by the upper feeding mechanism 4. At this time, the drive motor of the second conveyor belt 302 can be actively rotated to change the initial position of the pusher block 3012, so that the cardboard can reach the first conveyor belt 3011 earlier and synchronize with the cardboard above. Only one part needs to be adjusted to complete the adaptation, which is convenient to operate. When the cardboard reaches the second conveyor belt 302, the pusher block 3012 is usually located at the bottom of the belt surface of the second conveyor belt 302. It will push the cardboard when it rotates to the top. Therefore, changing the position of the pusher block 3012 will not cause the cardboard to fall on the pusher block 3012 and become unable to be pushed.

[0050] In this preferred embodiment, the first conveyor belt 3011 and the second conveyor belt 302 are interleaved at their opposite ends.

[0051] With this configuration, after the first conveyor belt 3011 and the second conveyor belt 302 are inserted alternately, no matter how the length of the cardboard changes, it can reach the first conveyor belt 3011 before synchronizing with the cardboard above, making the conveying more stable. The number of the first conveyor belt 3011 and the second conveyor belt 302 can be two of each intersecting each other, or two second conveyor belts 302 sandwiching one first conveyor belt 3011, or other numbers.

[0052] In a preferred embodiment, the first conveyor belt 3011 has a bending area 30111 that bends downwards at one end facing the second conveyor belt 302.

[0053] With this configuration, the bending area 30111 allows the pusher block 3012 to enter the downward movement process first, without hindering the transport of the cardboard. This structure can be achieved by adding gears to the bending area 30111.

[0054] In a preferred embodiment, a platform plate 101 is provided on the top of the frame 1 at a position between the upper feeding mechanism 4 and the lower feeding mechanism 5.

[0055] With this setup, since the upper feeding mechanism 4 is positioned relatively high, the staff can move to the platform 101 first before loading the material, making the loading process more convenient.

[0056] In this preferred embodiment, a gap is provided between the platform plate 101 and the lower feeding mechanism 5.

[0057] With this setting, the cardboard can be observed to see if there are any abnormalities in its transportation process on the lower push mechanism 301. If any abnormalities are found, repairs can be carried out from this position. Moreover, setting this gap will not affect the transportation of the cardboard, and the cardboard will not hit the platform plate 101.

[0058] In this preferred embodiment, the upper feeding mechanism 4 and the lower feeding mechanism 5 are respectively provided with baffle plate 401.

[0059] With this configuration, the cardboard block 401 can provide positioning for the cardboard stack during feeding, eliminating the need for deliberate alignment.

[0060] In this preferred embodiment, a height adjustment mechanism 8 is also included. The height adjustment mechanism 8 includes a first driving member 801 and a first screw 802. The first driving member 801 drives the first screw 802 to rotate. When the first screw 802 rotates, it drives the upper feeding mechanism 4 and the upper conveying mechanism 2 to rise or fall. The above setting is not limited. The height adjustment mechanism 8 can also be made of parts such as a cylinder, a hydraulic cylinder or a telescopic motor to achieve vertical movement.

[0061] With this configuration, when it is necessary to process taller or shorter cartons, the first drive unit 801 can be used to control the rotation of the first screw 802. During the rotation, the upper feeding mechanism 4 and the upper conveying mechanism 2 can be raised or lowered by the threaded connection, thereby adapting to the processing of cartons of different heights and making it more versatile.

[0062] In a preferred embodiment, the height adjustment mechanism 8 further includes two adjustment side plates 803. The two adjustment side plates 803 are respectively located on both sides of the upper feeding mechanism 4 and the upper conveying mechanism 2 and connected to them. The first screw 802 is threadedly connected to the adjustment side plate 803. The above setting is not limited. The adjustment side plate 803 can be directly provided with a threaded block, or it can be provided with a block welded to it or a block connected to it with bolts.

[0063] With this configuration, both the upper feeding mechanism 4 and the upper conveying mechanism 2 are mounted on the adjusting side plate 803, thus achieving linkage between the two. In this way, the first screw 802 only needs to be threadedly connected to the adjusting side plate 803 to drive its lifting and lowering, which can simultaneously drive the upper feeding mechanism 4 and the upper conveying mechanism 2 to rise or fall, making the lifting and lowering more stable and the operation more convenient.

[0064] In this preferred embodiment, the first driving component 801 is a motor. However, the above setting is not limiting. The first driving component 801 can also be manual or in other forms.

[0065] With this configuration, the first screw 802 is controlled by a motor, resulting in stronger torque and easier control.

[0066] In this preferred embodiment, there are four first screws 802, and each of the adjusting side plates 803 is threadedly connected to two of the first screws 802. The four first screws 802 are arranged to rotate synchronously. The above arrangement is not limited. The number of first screws 802 can also be other, and it can also be arranged in the form of one screw plus one guide rod for positioning.

[0067] With this configuration, every two screws control the lifting and lowering of one adjusting side plate 803, making the lifting and lowering more stable and preventing unilateral deviation that could cause jamming.

[0068] In a preferred embodiment, the height adjustment mechanism 8 further includes a connecting shaft 804 and a first synchronous belt 805. The top of the first screw 802 is provided with a screw jack 8021. There are two connecting shafts 804, and the two connecting shafts 804 are respectively connected to the two screw jacks 8021 at the position on an adjustment side plate 803. The first synchronous belt 805 connects the two screw jacks 8021 on the two adjustment side plates 803. The above configuration is not limited. The first synchronous belt 805 can also be made of chain, gear or other parts to achieve linkage. The same applies to other synchronous belts in this application. Multiple screw jacks 8021 can also be linked through the connecting shaft 804, or all can be linked through the synchronous belt, or the connecting shaft 804 and the synchronous belt can be interchanged to achieve linkage or other forms.

[0069] This configuration facilitates the synchronous linkage between multiple screws after the screw jack 8021 is installed. By inserting the connecting shaft 804 into two screw jacks 8021 on the same side, the two screw jacks 8021 on the same side can be linked. The first synchronous belt 805 is respectively fitted onto two screw jacks 8021 on different sides to achieve linkage between the screw jacks 8021 on both sides. In this way, four first screws 802 can be connected at the same time. At this time, only one first driving component 801 is needed to drive the four first screws 802 to rotate synchronously at the same time, saving costs and making it more stable.

[0070] In a preferred embodiment, the frame 1 is provided with a slide rail 102, and the end of the adjusting side plate 803 facing the slide rail 102 is provided with a sliding block 8031 ​​adapted to the slide rail 102.

[0071] With this configuration, the frame 1 will be connected by the sliding block 8031 ​​being fitted onto the slide rail 102. The slide rail 102 will guide and position the sliding, making the lifting process more stable.

[0072] In this preferred embodiment, the cross-section of the slide rail 102 is I-shaped.

[0073] With this configuration, the groove on the sliding block 8031 ​​will also be I-shaped. After it is fitted, the slide rail 102 can restrict its movement in all directions except the axial direction, so that it can only move up and down, making it more stable.

[0074] In this preferred embodiment, each of the adjustable side plates 803 has at least two slide rails 102 at its corresponding position, and the number of sliding blocks 8031 ​​is adapted to the number of slide rails 102.

[0075] With this configuration, multiple slide rails 102 are positioned simultaneously, making the sliding of the adjustment side plate 803 more stable. The number of sliding blocks 8031 ​​can be the same as the number of slide rails 102, or it can be two, three, or more times the number of slide rails 102. In this way, each slide rail 102 is equipped with several sliding blocks 8031, which makes it more stable.

[0076] In this preferred embodiment, the height adjustment mechanism 8 further includes a first synchronous gear 806. The upper conveying mechanism 2 is provided with a first gear 201, and the lower conveying mechanism 3 is provided with a second gear 303 and a second synchronous belt 304. The first gear 201 and the second gear 303 respectively drive the upper conveying mechanism 2 and the lower conveying mechanism 3 to operate. The second synchronous belt 304 connects the first gear 201, the second gear 303, and the first synchronous gear 806. The first gear 201 and the first synchronous gear 806 are synchronously raised and lowered. The first synchronous gear 806 and the first gear 201 are located on the inner and outer sides of the second synchronous belt 304, respectively. The above setting is not limited. The upper conveying mechanism 2 and the lower conveying mechanism 3, or other structures, can be equipped with synchronous belts to facilitate linkage of various shafts and rollers as needed. The first gear 201 and the second gear 303 can be gears directly set at the ends of the rotating shafts driving the upper conveying mechanism 2 and the lower conveying mechanism 3, or they can be intermediate gears in the linkage process.

[0077] With this configuration, the second synchronous belt 304, after being fitted onto the first gear 201 and the second gear 303, can synchronize the running speed of the conveyor belts in the upper conveyor mechanism 2 and the lower conveyor mechanism 3. The first synchronous gear 806 not only provides tension to the second synchronous belt 304, but also, when the upper conveyor mechanism 2 is raised or lowered by the height adjustment mechanism 8, the lengths of the synchronous belts on the sides of the first synchronous gear 806 and the first gear 201, located on the inner and outer sides of the second synchronous belt 304 respectively, will increase and decrease respectively, thus canceling each other out. This achieves the effect of maintaining the linkage between the upper conveyor mechanism 2 and the lower conveyor mechanism 3 after raising or lowering.

[0078] In this preferred embodiment, the lower conveying mechanism 3 is provided with a first linkage wheel set 305, the first linkage wheel set 305 is disposed on the frame 1, and the second synchronous belt 304 is sleeved on the first linkage wheel set 305.

[0079] With this configuration, the first linkage pulley group 305 can adjust the shape of the second synchronous belt 304 by relying on several gears. In this way, even if the drive shaft of the lower conveyor mechanism 3 is located at the bottom, the highest point of the second synchronous belt 304 can be opened above the first synchronous gear 806, ensuring that the first synchronous gear 806 can be pressed in from the outside of the second synchronous belt 304.

[0080] In this preferred embodiment, the first synchronous gear 806 and the first gear 201 are both mounted on the adjusting side plate 803, and the second gear 303 and the first linkage wheel set 305 are both mounted on the frame 1. The above configuration is not limited. The first synchronous gear 806 and the first gear 201 can also be mounted on the mounting frame of the upper conveying mechanism 2 or the mounting frame of the upper feeding mechanism 4 or other parts that can move together with the lifting. The second gear 303 and the first linkage wheel set 305 can also be mounted on other parts that will not be displaced.

[0081] With this configuration, the adjusting side plate 803 can better coordinate the lifting and lowering behavior of the first synchronous gear 806 and the first gear 201. The two are stably linked and easy to install. The second gear 303 and the first linkage wheel set 305 are convenient to install on the frame 1 and have a stable structure.

[0082] In this preferred embodiment, a width adjustment mechanism 9 is also included. The width adjustment mechanism 9 includes a second driving member 901 and a second screw 902. The upper conveying mechanism 2 includes two third conveyor belts 202, and the lower conveying mechanism 3 includes two second conveyor belts 302. The second driving member 901 drives the second screw 902 to rotate. When the second screw 902 rotates, it changes the distance between the two third conveyor belts 202 and the distance between the two second conveyor belts 302. The above settings are not limited, and the width adjustment mechanism 9 can be other structures.

[0083] With this setup, when wider or narrower cartons need to be processed, the second drive unit 901 can be used to control the rotation of the second screw 902. During the rotation, the two second conveyor belts 302 and the two third conveyor belts 202 can be driven to separate or converge, thus adapting to cardboard of different widths. This setup is convenient to adjust and highly adaptable. The upper feeding mechanism 4 and the lower feeding mechanism 5 can be set to a larger width from the beginning, relying on the baffle plate 401 to limit the position without adjustment. The baffle plate 401 can also be equipped with a synchronously linked second screw 902, which moves together with the width adjustment mechanism 9. An additional adjustment structure can be added to the baffle plate 401 to facilitate size adaptation. Since the cardboard is conveyed from the ends of the upper conveyor mechanism 2 and the lower conveyor mechanism 3, the gap after they separate will not affect the conveyed cardboard. There is no need to add baffles or other parts to assist in transportation. The folding mechanism 6 and the nailing mechanism 7 can be directly set on the corresponding conveyor belts and linked with them, or they can be controlled and adjusted independently.

[0084] In this preferred embodiment, the second driving component 901 is a motor. However, the above setting is not a limitation. The second driving component 901 can also be manual or in other forms.

[0085] With this configuration, the second screw 902 is controlled by a motor, resulting in stronger torque and easier control.

[0086] In this preferred embodiment, the second screw 902 is provided with several screws, and the several screws 902 are arranged to rotate synchronously.

[0087] With this configuration, multiple second screws 902 can be inserted into various positions of the mobile device at the same time and rotate simultaneously to control its movement more stably, avoiding the occurrence of tilting and jamming. Additionally, a bare rod can be added as a support rod.

[0088] In this preferred embodiment, the upper conveying mechanism 2 and the lower conveying mechanism 3 are respectively threadedly connected to different second screws 902.

[0089] With this configuration, the upper conveying mechanism 2 and the lower conveying mechanism 3 are respectively connected to different second screws 902 to drive them to separate or converge. The multiple second screws 902 rotate synchronously. Although they are controlled independently, the rotation angles are the same, ensuring that the direction and distance of their movement are the same. With two screws, the width adjustment function will not be affected when the upper conveying mechanism 2 is height adjusted.

[0090] In a preferred embodiment, the width adjustment mechanism 9 further includes a third synchronous belt 903 and a second synchronous gear 904. The second screw 902 is provided with a third gear 9021 that drives its rotation. The third synchronous belt 903 connects the third gear 9021 on the upper conveying mechanism 2, the third gear 9021 on the lower conveying mechanism 3, and the second synchronous gear 904. The third gear 9021 and the second synchronous gear 904 on the upper conveying mechanism 2 are synchronously raised and lowered. The third gear 9021 and the second synchronous gear 904 on the upper conveying mechanism 2 are located on the inner and outer sides of the third synchronous belt 903, respectively. The above setting is not limited. The second synchronous belt 904 can only be responsible for the up-and-down linkage. The width adjustment mechanism 9 can be provided with more synchronous belts to link different groups of second screws 902. The third gear 9021 on the upper conveying mechanism 2 and the third gear 9021 on the lower conveying mechanism 3 can be gears directly set at the end of the driving second screw 902 or intermediate gears in the linkage process.

[0091] With this configuration, the third synchronous belt 903, after being fitted onto the third gear 9021 at two positions, can synchronize the width-direction movement of the upper conveyor 2 and the lower conveyor 3. The second synchronous gear 904 not only provides tension to the third synchronous belt 903, but also, when the upper conveyor 2 is raised or lowered by the height adjustment mechanism 8, because the third gear 9021 and the second synchronous gear 904 on the upper conveyor 2 are located on the inner and outer sides of the third synchronous belt 903 respectively, the lengths of the synchronous belts on their sides will increase and decrease respectively, thus canceling each other out. This achieves the effect of maintaining the synchronization of the width-direction movement of the upper conveyor 2 and the lower conveyor 3 after raising or lowering.

[0092] In a preferred embodiment, the width adjustment mechanism 9 further includes a second linkage wheel set 905, and the third synchronous belt 903 is sleeved on the second linkage wheel set 905.

[0093] With this configuration, the second linkage pulley group 905 can adjust the shape of the third synchronous belt 903 by relying on several gears. In this way, even if the third gear 9021 on the lower conveyor mechanism 3 is located at the bottom, the highest point of the third synchronous belt 903 can be opened to the top of the second synchronous gear 904, ensuring that the second synchronous gear 904 can be pressed in from the outside of the third synchronous belt 903.

[0094] In this preferred embodiment, the third gear 9021 and the second synchronous gear 904 on the upper conveying mechanism 2 are both mounted on the adjusting side plate 803, and the third gear 9021 and the second linkage wheel set 905 on the lower conveying mechanism 3 are both mounted on the frame 1. The above configuration is not limited. The third gear 9021 and the second synchronous gear 904 on the upper conveying mechanism 2 can also be mounted on the mounting frame of the upper conveying mechanism 2 or the mounting frame of the upper feeding mechanism 4, or on other parts that can move together with the lifting. The third gear 9021 and the second linkage wheel set 905 on the lower conveying mechanism 3 can also be mounted on other parts that will not be displaced.

[0095] With this configuration, the adjusting side plate 803 can better coordinate the lifting and lowering behavior of the third gear 9021 and the second synchronous gear 904 on the upper conveying mechanism 2. The two are stably linked and easy to install. The third gear 9021 and the second linkage wheel group 905 on the lower conveying mechanism 3 are conveniently installed on the frame 1 and have a stable structure.

[0096] In this preferred embodiment, the second screw 902 is a double-ended screw.

[0097] With this configuration, when the double-headed screw rotates, the third conveyor belt 202 and the second conveyor belt 302 will move to both sides simultaneously, resulting in greater stability.

[0098] In a preferred embodiment, the width adjustment mechanism 9 further includes a plurality of connecting nuts 906 threadedly connected to the second screw 902, and the plurality of connecting nuts 906 are respectively connected to the third conveyor belt 202 and the second conveyor belt 302.

[0099] With this setup, the second screw 902 can be directly inserted through the third conveyor belt 202 and the second conveyor belt 302, and then the connecting nut 906 can be screwed on to clamp the third conveyor belt 202 and the second conveyor belt 302. Finally, the connecting nut 906 can be fixed on the third conveyor belt 202 and the second conveyor belt 302 to complete the installation, which is convenient.

[0100] In a preferred embodiment, the width adjustment mechanism 9 further includes a nut locking sleeve 907 and a connecting block 908. The connecting nut 906 is located between the nut locking sleeve 907 and the connecting block 908. The nut locking sleeve 907 and the connecting block 908 are connected by bolts. The connecting block 908 is connected to the third conveyor belt 202 and the second conveyor belt 302 by bolts.

[0101] With this setup, the connecting nut 906 is clamped onto the connecting block 908 by the nut locking sleeve 907. The connecting block 908 also has a hole corresponding to the connecting nut 906. After the connecting nut 906 rotates to clamp the third conveyor belt 202 and the second conveyor belt 302, bolts are used to pass through the connecting block 908 and screw them onto the third conveyor belt 202 and the second conveyor belt 302. Compared to the connecting nut 906, the connecting block 908 and the nut locking sleeve 907 can accommodate more bolts, resulting in a more stable connection and easier assembly and disassembly.

[0102] In this preferred embodiment, the second drive component 901 is located inside the frame 1.

[0103] This configuration, placed on the inside, reduces the overall space occupied. Meanwhile, the various gears it drives can be set on both the inside and outside of the frame 1. The width adjustment gear and the gear that drives the conveyor belt can be set on the two sides of the frame 1 respectively.

[0104] In a preferred embodiment, the end of the second screw 902 is provided with a drive handwheel 9022 located outside the frame 1.

[0105] With this setup, if the motor malfunctions, is not powered during installation, or requires fine-tuning, the second screw 902 can be manually rotated via the drive handwheel 9022 to manually fine-tune the width.

[0106] In this preferred embodiment, the first conveyor belt 3011 is connected to the side wall of the mounting bracket of the second conveyor belt 302.

[0107] With this configuration, the first conveyor belt 3011 can be linked with the second conveyor belt 302, and its width can be adjusted along with the second conveyor belt 302.

[0108] In this preferred embodiment, the shafts of the second conveyor belt 302 and the third conveyor belt 202 are provided with a strip keyway 3021 whose length is greater than the width of the drive wheels of the second conveyor belt 302 and the third conveyor belt 202. The above setting is not limited. If there are other conveyor belt shafts that need to be adjusted in width together in this application, the strip keyway 3021 can also be provided. At the same time, the strip keyway 3021 can also be changed into a long boss or other shapes.

[0109] With this configuration, when the width of the second conveyor belt 302 and the third conveyor belt 202 is adjusted, the drive wheels of the conveyor belts will slide on the shaft. Since the length of the keyway 3021 is greater than the width of the second conveyor belt 302 and the third conveyor belt 202, it can always drive the two conveyors to move when they are moving, and will not be affected by the width adjustment.

[0110] See appendix Figure 12 In this preferred embodiment, it further includes a first drive motor 10 and a second drive motor 11, which control the operation of the upper conveying mechanism 2 and the lower conveying mechanism 3 respectively.

[0111] With this configuration, the first drive motor 10 and the second drive motor 11 achieve synchronous conveying of the upper conveying mechanism 2 and the lower conveying mechanism 3 through programming. The two are controlled independently, so that the synchronous rotation of the two will not be affected when the upper conveying mechanism 2 is adjusted in height.

[0112] Although the present invention has been described in detail with reference to the foregoing embodiments, the scope of protection of the present invention is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in the present invention, based on the technical solution and inventive concept of the present invention, should be included within the scope of protection of the present invention.

Claims

1. An automatic carton stapler, comprising a frame, an upper conveying mechanism, a lower conveying mechanism, an upper feeding mechanism, a lower feeding mechanism, a folding mechanism, and a stapler mechanism, wherein the lower conveying mechanism is located below the upper conveying mechanism, characterized in that: The upper feeding mechanism is located at one end of the upper conveying mechanism in the input direction, and the lower feeding mechanism is located at one end of the lower conveying mechanism in the input direction.

2. The automatic carton stapler according to claim 1, characterized in that: It also includes a lower pushing mechanism, which is located between the lower feeding mechanism and the lower conveying mechanism, and the length of the lower pushing mechanism is greater than the length of the upper feeding mechanism.

3. The automatic carton stapler according to claim 2, characterized in that: The lowering mechanism includes a first conveyor belt and several push blocks, which are evenly distributed along the first conveyor belt.

4. The automatic carton stapler according to claim 3, characterized in that: The lower conveyor mechanism includes a second conveyor belt, and the first conveyor belt and the second conveyor belt are arranged alternately.

5. The automatic carton stapler according to claim 1, characterized in that: It also includes a height adjustment mechanism, which includes a first driving member and a first screw. The first driving member drives the first screw to rotate, and when the first screw rotates, it causes the upper feeding mechanism and the upper conveying mechanism to rise or fall.

6. An automatic carton stapler according to claim 5, characterized in that: The height adjustment mechanism also includes two adjustment side plates, which are respectively located on both sides of the upper feeding mechanism and the upper conveying mechanism and connected to them. The first screw is threadedly connected to the adjustment side plates.

7. An automatic carton stapler according to claim 6, characterized in that: The height adjustment mechanism further includes a first synchronous gear. The upper conveying mechanism is provided with a first gear, and the lower conveying mechanism is provided with a second gear and a second synchronous belt. The first gear and the second gear respectively drive the upper conveying mechanism and the lower conveying mechanism to operate. The second synchronous belt connects the first gear, the second gear, and the first synchronous gear. The first gear and the first synchronous gear are synchronously raised and lowered. The first synchronous gear and the first gear are located on the inner and outer sides of the second synchronous belt, respectively.

8. An automatic carton stapler according to claim 7, characterized in that: The lower conveying mechanism is provided with a first linkage wheel set, and the second synchronous belt is sleeved on the first linkage wheel set.

9. An automatic carton stapler according to claim 1, characterized in that: It also includes a width adjustment mechanism, which includes a second drive member and a second screw. The upper conveying mechanism includes two third conveyor belts, and the lower conveying mechanism includes two second conveyor belts. The second drive member drives the second screw to rotate, and when the second screw rotates, it changes the distance between the two third conveyor belts and the distance between the two second conveyor belts.

10. An automatic carton stapler according to claim 9, characterized in that: The shafts of the second and third conveyor belts are provided with strip-shaped keyways with a length greater than the width of the drive wheels of the second and third conveyor belts.

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