A machine for loading a cartridge

Abstract

The application discloses a box feeding machine, which comprises a frame, a paperboard storage device, a paperboard blanking device, a paperboard bending device, a first conveying device and a second conveying device, wherein the first conveying device is located below the paperboard blanking device and the paperboard bending device; the paperboard storage device is provided with a suction opening on one side close to the paperboard blanking device; the paperboard blanking device comprises a linear guide rail hinged to the frame, a vacuum chuck frame mounted on the linear guide rail and a reciprocating driving mechanism for driving the vacuum chuck frame to reciprocate between the suction opening and a discharging position of the first conveying device; the second conveying device is located at the rear of the first conveying device and below the rear of the paperboard bending device, extends to the upper side of a paper handle hanging surface conveying device, and is provided with a sensor for detecting whether the paper handle hanging surface is in place at the paper handle hanging surface conveying device; and the sensor and the reciprocating driving mechanism are connected with a controller. The box feeding machine improves the efficiency of the pre-treatment process of the paper handle hanging surface for plastic box packaging.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of food packaging machinery, in particular to a box feeding machine. BACKGROUND

[0002] At present, the packaging of dried noodles has been transferred from paper packaging to plastic packaging. The plastic packaging is formed by a plurality of paper noodles, but the overall shape of the plurality of paper noodles is not flat due to the soft outer packaging. The outer surface of the plastic box after packaging is also not flat, which leads to the fact that the overall shape of the plastic box after packaging is not beautiful and easy to deform, and the packaged objects cannot be well protected. Therefore, an inner liner paper box needs to be covered on the plurality of paper noodles for plastic box packaging to protect the noodles from being broken or crushed during transportation and storage.

[0003] The inner liner paper box in the related art mostly relies on manual folding, and some simple folding paper holders are also used by mechanical equipment, but the folding speed and number of the inner liner paper box cannot be flexibly folded according to the conveying process of the paper noodles.

[0004] In summary, how to design a device that can flexibly fold the inner liner paper box according to the conveying process of the paper noodles and automatically feed the inner liner paper box on the group of paper noodles is a problem that needs to be solved by the technical personnel in the field at present. SUMMARY

[0005] The purpose of the present application is to provide a box feeding machine that can flexibly fold the inner liner paper box according to the conveying process of the paper noodles and automatically feed the inner liner paper box on the group of paper noodles, thereby improving the efficiency of the pre-treatment process of the plastic box packaging of the paper noodles.

[0006] To solve the above technical problems, the present application provides the following technical solutions:

[0007] A box feeding machine comprises a rack, a paperboard storage device, a paperboard unloading device, a paperboard bending device, a first conveying device and a second conveying device,

[0008] The first conveying device is located below the paperboard unloading device and the paperboard bending device;

[0009] The paperboard storage device is used to store stacked paperboards, and one side of the paperboard storage device close to the paperboard unloading device has a suction opening;

[0010] The paperboard unloading device comprises a linear guide rail hinged to the rack, a vacuum chuck rack installed at the lower end of the linear guide rail, and a reciprocating driving mechanism for driving the vacuum chuck rack to reciprocate between the suction opening and the discharging position of the first conveying device;

[0011] The second conveying device is located at the rear of the first conveying device and below the paperboard bending device, and extends to above the paper handle hanging surface conveying device, wherein a sensor for detecting whether the paper handle hanging surface is in place is arranged at the paper handle hanging surface conveying device, and the sensor and the reciprocating driving mechanism are connected with the controller.

[0012] Optionally, a position between the middle of the linear guide rail and one end of the vacuum chuck frame is hinged to one end of a rocker, the other end of the rocker is fixedly connected with a rocker shaft, and the rocker shaft is connected with the reciprocating driving mechanism.

[0013] Optionally, the reciprocating driving mechanism comprises a speed reducer, a crank shaft, a crank disc, a connecting rod and a rocker disc, the output shaft of the speed reducer is in transmission connection with the crank shaft, the crank shaft is fixedly connected with the center of the crank disc, the edge of the crank disc is hinged to one end of the connecting rod, the other end of the connecting rod is hinged to the edge of the rocker disc, and the center of the rocker disc is connected with the rocker.

[0014] Optionally, two paperboard storage devices and two paperboard unloading devices are symmetrically arranged on the upper part of the rack, and the two paperboard storage devices and the two paperboard unloading devices are arranged in one-to-one correspondence.

[0015] Optionally, the first conveying device comprises two first conveying slide rods, a first conveying chain and a first push block connected to the first conveying chain, the first conveying chain is located below the middle of the two first conveying slide rods, and the height of the first push block is higher than the height of the first conveying slide rod.

[0016] Optionally, the second conveying device comprises a second conveying slide rod, a second conveying chain and a second push block connected to the second conveying chain, the lower part of the second conveying chain is parallel to the second conveying slide rod, the two second conveying chains are located above the middle of the two second conveying slide rods, and the bottom surface of the second push block is lower than the upper surface of the second conveying slide rod.

[0017] Optionally, the second conveying slide rod is downwardly inclined from the paperboard bending device to the paper handle hanging surface conveying device.

[0018] Optionally, the first conveying slide rod is in the shape of an inwardly-retracted L shape, and the second conveying slide rod is in the shape of a “1” character.

[0019] Optionally, the paperboard storage device comprises a bottom plate and two side plates connected to the bottom plate, the paperboard storage device has opposite first and second ends, the bottom plate is downwardly inclined from the second end to the first end, the bottom plate and the two side plates are fixedly connected with a plurality of blocking blocks on the end surface of the first end, the two side plates are connected with a plurality of air jet nozzles on the end surface of the first end, and the air jet direction of the air jet nozzles is perpendicular to the stacking direction of the paperboard.

[0020] Optionally, the cardboard bending device includes a slotting wheel set and a bending wheel set.

[0021] The slotted wheel assembly has multiple slotted plates;

[0022] The bending wheel assembly includes a rotatable upper bending wheel and a lower bending wheel. The upper bending wheel includes an inner small wheel and an outer large wheel. The lower bending wheel cooperates with the inner small wheel of the upper bending wheel. A portion of the cardboard is pressed between the lower bending wheel and the inner small wheel of the upper bending wheel.

[0023] The beneficial effects of the present invention are that the box-making machine includes a frame, a cardboard storage device, a cardboard feeding device, a cardboard bending device, a first conveying device, and a second conveying device.

[0024] The cardboard storage device and cardboard feeding device are located at the top of the frame, while the cardboard bending device, the first conveyor, and the second conveyor are located at the bottom of the frame. The first conveyor is located below the cardboard feeding device and the cardboard bending device. Stacked cardboard is stored in the cardboard storage device, which has a suction opening on the side near the cardboard feeding device, i.e., the suction position.

[0025] The cardboard unloading device includes a linear guide rail, a vacuum suction cup frame, and a reciprocating drive mechanism. The back of the vacuum suction cup frame is fixedly connected to one end of the linear guide rail, and the middle of the linear guide rail is hinged to the frame. The reciprocating drive mechanism drives the vacuum suction cup frame to reciprocate between the suction opening and the unloading position of the first conveying device, thereby enabling the cardboard unloading device to transfer the cardboard from the cardboard storage device to the first conveying device.

[0026] The first conveyor feeds the cardboard into the cardboard bending device, which performs slotting and bending on the cardboard. The second conveyor is located behind and below the first conveyor. The second conveyor extends above the paper bundle hanging conveyor, directly conveying the folded cardboard onto the paper bundle hanging conveyor, allowing it to fall directly onto the grouped paper bundle hanging surface on the paper bundle hanging conveyor.

[0027] The paper bundle conveying device is equipped with a sensor to detect whether the paper bundle is in position. The sensor and the reciprocating drive mechanism are connected to the controller. The reciprocating drive mechanism drives the linear guide to rotate based on the presence or absence of the paper bundle on the paper bundle conveying device. The rotation of the linear guide can drive the vacuum suction cup frame to move back and forth between the suction position of the paperboard storage device and the discharge position of the paperboard conveying device.

[0028] The cardboard feeding machine provided by this invention features a vacuum suction cup type cardboard feeding device. The vacuum suction cup is driven by a linear guide rail and a reciprocating drive mechanism, which allows for easy switching between the suction and feeding positions. Since the reciprocating drive mechanism operates based on the presence or absence of paper bundles on the paper bundle conveying device, it can flexibly feed cardboard according to the conveying process of the paper bundle conveying device. After subsequent folding and conveying, the cardboard can fall directly onto the grouped paper bundles on the paper bundle conveying device, automatically and flexibly placing inner liner boxes on the grouped paper bundles, thus improving the efficiency of placing inner liner boxes on the grouped paper bundles and increasing the efficiency of the pre-processing steps for plastic box packaging of paper bundles. Attached Figure Description

[0029] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0030] Figure 1 This is a schematic diagram of the main structure of a box-making machine according to a specific embodiment of the present invention;

[0031] Figure 2 A three-dimensional structural diagram of the box-submitting machine with some parts omitted;

[0032] Figure 3 This is a schematic diagram of the main structure of the cardboard feeding device.

[0033] Figure 4 for Figure 2 A magnified structural diagram of part A;

[0034] Figure 5 A partial three-dimensional structural diagram of a cardboard storage device;

[0035] Figure 6 for Figure 2 A schematic diagram of the enlarged structure of part B;

[0036] Figure 7 This is a schematic diagram of the slotted wheel assembly.

[0037] Figure 8 This is a schematic diagram of the bending wheel assembly.

[0038] Figure 9 This is a schematic diagram of the structure in which the first conveyor slide bar engages with the cardboard.

[0039] Figure 10 This is a schematic diagram of the structure in which the second conveyor slide bar cooperates with the cardboard.

[0040] The following labels are shown in the attached diagram:

[0041] Frame 1, Cardboard storage device 2, Cardboard bending device 3, Cardboard unloading device 4, Paper bundle conveying device 5, Second conveying device 6, First conveying device 7, Support 21, Upper roller 22, Middle roller 23, Side plate 24, Base plate 25, Hollowed-out section 26, Slide 27, Photoelectric detector 28, Blocking block 29, Long slot 210, Air nozzle 211, Bottom roller 212, Slotting wheel assembly 31, Bending wheel assembly 32, First drive shaft 33, Second drive shaft 34, Upper slotting wheel 311, Lower slotting wheel 312 Upper bending wheel 321, lower bending wheel 322, slotted wheel 3111, first wheel 3112, second wheel 3113, clearance groove 3123, outer large wheel 3211, inner small wheel 3212, geared motor 41, crankshaft 42, crank disc 43, connecting rod 44, rocker disc 45, linear guide rail 46, vacuum suction cup frame 47, rocker 48, rocker shaft 49, second conveying slide 61, second push block 62, second conveying chain 63, first conveying chain 71, first conveying slide 72, first push block 73. Detailed Implementation

[0042] The core of this invention is to provide a box-feeding machine that can flexibly fold inner lining boxes according to the conveying process of paper bundles and automatically place the inner lining boxes on the grouped paper bundles, thereby improving the efficiency of the pre-processing steps for plastic box packaging of paper bundles.

[0043] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0044] Please refer to Figures 1 to 10 , Figure 1 This is a schematic diagram of the main structure of a box-making machine according to a specific embodiment of the present invention; Figure 2 A three-dimensional structural diagram of the box-submitting machine with some parts omitted; Figure 3 This is a schematic diagram of the main structure of the cardboard feeding device. Figure 4 for Figure 2 A magnified structural diagram of part A;

[0045] Figure 5 A partial three-dimensional structural diagram of a cardboard storage device; Figure 6 for Figure 2 A schematic diagram of the enlarged structure of part B; Figure 7 This is a schematic diagram of the slotted wheel assembly. Figure 8This is a schematic diagram of the bending wheel assembly.

[0046] Figure 9 This is a schematic diagram of the structure in which the first conveyor slide bar engages with the cardboard. Figure 10 This is a schematic diagram of the structure in which the second conveyor slide bar cooperates with the cardboard.

[0047] In one specific embodiment, the cardboard feeding machine provided by the present invention includes a frame 1, a cardboard storage device 2 mounted on the frame 1, a cardboard feeding device 4, a cardboard bending device 3, a first conveying device 7, and a second conveying device 6.

[0048] The first conveying device 7 is located below the cardboard feeding device 4 and the cardboard bending device 3;

[0049] The cardboard storage device 2 is used to store stacked cardboard, and the cardboard storage device 2 has a suction opening on the side near the cardboard feeding device 4;

[0050] The cardboard feeding device 4 includes a linear guide rail 46 hinged to the frame 1, a vacuum suction cup frame 47 installed at the lower end of the linear guide rail 46, and a reciprocating drive mechanism that drives the vacuum suction cup frame 47 to reciprocate between the suction opening and the feeding position of the first conveying device 7.

[0051] The second conveying device 6 is located behind the first conveying device 7 and below the cardboard bending device 3. The second conveying device 6 extends above the paper bundle hanging surface conveying device 5. The paper bundle hanging surface conveying device 5 is equipped with a sensor to detect whether the paper bundle hanging surface is in place. The sensor and the reciprocating drive mechanism are connected to the controller.

[0052] In the above structure, the box-making machine includes a frame 1, a cardboard storage device 2, a cardboard feeding device 4, a cardboard bending device 3, a first conveying device 7, and a second conveying device 6.

[0053] The cardboard storage device 2 and the cardboard feeding device 4 are located on the upper part of the frame 1, while the cardboard bending device 3, the first conveying device 7, and the second conveying device 6 are located on the lower part of the frame 1. The first conveying device 7 is located below the cardboard feeding device 4 and the cardboard bending device 3. Stacked cardboard is stored in the cardboard storage device 2, which has a suction opening, i.e., a suction position, on the side near the cardboard feeding device 4.

[0054] The cardboard unloading device 4 includes a linear guide rail 46, a vacuum suction cup frame 47, and a reciprocating drive mechanism. The back of the vacuum suction cup frame 47 is fixedly connected to one end of the linear guide rail 46, and the middle of the linear guide rail 46 is hinged to the frame 1. The reciprocating drive mechanism drives the vacuum suction cup frame 47 to reciprocate between the suction opening and the unloading position of the first conveying device 7, thereby enabling the cardboard unloading device 4 to transfer cardboard from the cardboard storage device 2 onto the first conveying device 7.

[0055] The first conveying device 7 feeds the cardboard into the cardboard bending device 3, which performs slotting and bending on the cardboard. The second conveying device 6 is located behind the first conveying device 7 and below the cardboard bending device 3. The second conveying device 6 extends above the paper bundle hanging conveyor 5, and directly conveys the folded cardboard above the paper bundle hanging conveyor 5 so that the folded cardboard falls directly from the second conveying device 6 onto the grouped paper bundle hanging surface on the paper bundle hanging conveyor 5.

[0056] The paper bundle conveying device 5 is equipped with a sensor to detect whether the paper bundle is in position. The sensor and the reciprocating drive mechanism are connected to the controller. The reciprocating drive mechanism drives the linear guide rail 46 to rotate according to the signal of the presence or absence of the paper bundle on the paper bundle conveying device 5. The rotation of the linear guide rail 46 can drive the vacuum suction cup frame 47 to move back and forth between the suction position of the paperboard storage device 2 and the discharge position of the paperboard conveying device.

[0057] The cardboard feeding machine provided by this invention, by setting a cardboard feeding device 4 of the form of a vacuum suction cup frame 47, can easily switch between the suction position and the feeding position through the cooperation of the linear guide rail 46 and the reciprocating drive mechanism. Since the reciprocating drive mechanism operates according to the presence or absence signal of the paper bundle and surface on the paper bundle and surface conveying device 5, it can flexibly feed cardboard according to the conveying process of the paper bundle and surface conveying device 5. After the cardboard is folded and conveyed, it can fall directly onto the grouped paper bundle and surface on the paper bundle and surface conveying device 5, and can automatically and flexibly place inner lining boxes on the grouped paper bundle and surface, thereby improving the efficiency of placing inner lining boxes on the grouped paper bundle and surface and improving the efficiency of the pre-processing process of plastic box packaging of paper bundle and surface.

[0058] Based on the above specific implementation, the position between the middle of the linear guide rail 46 and one end of the vacuum suction cup frame 47 is hinged to one end of the rocker arm 48, and the other end of the rocker arm 48 is fixedly connected to the rocker arm shaft 49. The rocker arm shaft 49 is connected to the reciprocating drive mechanism so as to drive the rocker arm shaft 49 to reciprocate within a certain angle.

[0059] In addition, a linear guide rail 46 is connected to a vacuum suction cup frame 47. When the rocker arm 48 drives the vacuum suction cup frame 47 on the linear guide rail 46 to rotate to the front of the cardboard, the linear guide rail 46 makes a linear motion so that the skirt of the vacuum suction cup presses against the cardboard by 3mm. Then, when the vacuum suction cup frame 47 rotates away, it can use vacuum to suck up a single sheet of paper.

[0060] Based on the above specific embodiments, the reciprocating drive mechanism includes a geared motor 41, a crankshaft 42, a crank disc 43, a connecting rod 44, and a rocker disc 45. The output shaft of the geared motor 41 is connected to the crankshaft 42. The crankshaft 42 is fixedly connected to the center of the crank disc 43. The edge of the crank disc 43 is hinged to one end of the connecting rod 44, and the other end of the connecting rod 44 is hinged to the edge of the rocker disc 45. The center of the rocker disc 45 is connected to the rocker 48. The center of the rocker disc 45 and the rocker shaft 49 can be connected by a Morse taper and a key. The reciprocating drive mechanism uses a crank-rocker mechanism, which has a quick-return characteristic, allowing the vacuum suction cup holder 47 to return to its original position after paper is placed, thus improving the working efficiency of the reciprocating drive mechanism.

[0061] Based on the above specific embodiments, two cardboard storage devices 2 and two cardboard feeding devices 4 are symmetrically arranged on the upper part of the frame 1, with the two cardboard storage devices 2 and the two cardboard feeding devices 4 arranged in a one-to-one correspondence.

[0062] In some specific embodiments, two cardboard storage devices 2 and two cardboard feeding devices 4 are provided, symmetrically arranged at the left and right ends of the frame 1. The box-making machine control device can control the operation of the two cardboard feeding devices 4 according to the detected paper bundle hanging surface signal. When the detected paper bundle hanging surface signal is dense, controlling the two cardboard feeding devices 4 can greatly increase the feeding speed. When the detected paper bundle hanging surface signal is sparse, only one cardboard feeding device 4 can be controlled to feed, greatly improving the flexibility of the box-making machine.

[0063] Optionally, one linear guide rail 46 is provided on each of the front and rear sides of the vacuum suction cup holder 47, and two rocker arms 48 are also provided, corresponding to the two linear guide rails 46 one-to-one, providing dual control for greater safety and reliability. The front of the vacuum suction cup holder 47 can be provided with four vacuum suction cups to increase the adsorption area with the cardboard.

[0064] In another more reliable embodiment, based on any of the above embodiments, the first conveying device 7 includes two first conveying slides 72, a first conveying chain 71, and a first push block 73 connected to the first conveying chain 71. The first conveying chain 71 is located below the middle of the two first conveying slides 72, and the height of the first push block 73 is higher than the height of the first conveying slides 72.

[0065] In some specific embodiments, the first conveying device 7 includes two first conveying slides 72, a first conveying chain 71, and a first pusher 73. The first conveying chain 71 is located below the middle of the two first conveying slides 72, and the cardboard overlaps the two first conveying slides 72. The first pusher 73 is connected to the first conveying chain 71 and moves with the first conveying chain 71. The height of the first pusher 73 is higher than the height of the first conveying slides 72, and the first pusher 73 pushes the cardboard along the two first conveying slides 72. The first conveying device 7 has a simple structure and is easy to drive the cardboard to move on the first conveying slides 72.

[0066] Based on the above specific embodiments, the second conveying device 6 includes a second conveying slide bar 61, a second conveying chain 63, and a second push block 62 connected to the second conveying chain 63. The lower part of the second conveying chain 63 is parallel to the second conveying slide bar 61. The two second conveying chains 63 are located above the middle of the two second conveying slide bars 61. The bottom surface of the second push block 62 is lower than the upper surface of the second conveying slide bar 61.

[0067] In some specific embodiments, the second conveying device 6 includes a second conveying slide bar 61, a second conveying chain 63, and a second pusher block 62. The lower part of the second conveying chain 63 is parallel to the second conveying slide bar 61, and the two second conveying chains 63 are located above the middle of the two second conveying slide bars 61. The bent cardboard falls onto the second conveying slide bars 61. The second pusher block 62 is connected to the second conveying chain 63 and moves with the second conveying chain 63. The bottom surface of the second pusher block 62 is lower than the upper surface of the second conveying slide bar 61 so as to push the folded cardboard along the two second conveying slide bars 61.

[0068] Based on the above specific embodiments, the second conveying slide bar 61 is inclined downward from the cardboard bending device 3 to the paper bundle hanging conveying device 5.

[0069] In some specific embodiments, the two second conveying slides 61 are inclined downwards from front to back, which can reduce the height of the folded cardboard, so that the folded cardboard can fall from a lower height onto the paper handle hanging surface during conveying. Therefore, the folded cardboard is not easily deformed after falling onto the paper handle hanging surface and can basically maintain its original shape.

[0070] Based on the above specific embodiments, the first conveying slide 72 is inwardly L-shaped, and the second conveying slide 61 is in the shape of a "1".

[0071] In some specific embodiments, the first conveying slide 72 is in the shape of an inwardly tapered L-shape, and the width of the cardboard is approximately equal to the distance between the side walls of the two L-shaped first conveying slides 72. The two L-shaped first conveying slides 72 limit the conveying of the cardboard to prevent it from deviating from its intended path.

[0072] The second conveyor slide 61 is shaped like the number "1". The bent cardboard is U-shaped. The "1" shaped second conveyor slide 61 makes it easy for the U-shaped cardboard to be placed on the two second conveyor slides 61.

[0073] In another more reliable embodiment, based on any of the above embodiments, the cardboard storage device 2 includes a base plate 25 and two side plates 24 connected to the base plate 25. The cardboard storage device 2 has a first end and a second end opposite to each other. The base plate 25 is inclined downward from the second end to the first end. A plurality of blocking blocks 29 are fixedly connected to the end face of the base plate 25 and the two side plates 24 at the first end. A plurality of air nozzles 211 are connected to the end face of the two side plates 24 at the first end. The air jet direction of the air nozzles 211 is perpendicular to the stacking direction of the cardboard.

[0074] In some specific embodiments, the cardboard storage device 2 includes a base plate 25, side plates 24, blocking blocks 29, air nozzles 211, and a rolling pressing assembly. The base plate 25 is arranged laterally, and stacked cardboard is laid flat on the base plate 25. The side plates 24 are vertical, and there are two side plates 24, which are respectively connected to the two sides of the base plate 25 and are parallel to the two sides of the cardboard. In the length direction, the cardboard storage device 2 has two ends, a first end and a second end, which are opposite to each other.

[0075] Two side plates 24 are connected to multiple air nozzles 211 on the end face of the first end. The air jet direction of the air nozzles 211 is perpendicular to the stacking direction of the cardboard. When the vacuum suction cup adsorbs the outermost cardboard, the outermost cardboard is adsorbed and deformed, and a gap will appear between it and the adjacent cardboard. At this time, by blowing air through the air nozzles 211, the outermost cardboard and the adjacent cardboard can be blown apart, so that the vacuum suction cup can reliably adsorb only a single cardboard at a time.

[0076] The base plate 25 is inclined downward from the second end to the first end. Multiple blocking blocks 29 are fixedly connected to the end face of the base plate 25 and the two side plates 24 at the first end. When the cardboard is placed on the base plate 25, the stacked cardboard is inclined to the lower end and placed against the blocking block 29.

[0077] Furthermore, the rolling pressing board assembly is located at the second end of the base plate 25. When the cardboard is placed on the base plate 25, the rolling pressing board assembly presses on the second end of the stacked cardboard, further ensuring that the first end of the stacked cardboard always abuts against the blocking block 29.

[0078] The cardboard storage device 2 provided by the present invention has a bottom plate 25 that is inclined and combined with a rolling cardboard pressing assembly to push the stacked cardboard against the blocking block 29. This arrangement relies solely on gravity to ensure that the first end of the stacked cardboard always abuts against the blocking block 29, without the need for additional power, thus saving power resources. The structure is simple and controls each cardboard to abut against the blocking block 29 individually and accurately, ensuring that the vacuum suction cup can reliably pick up only one cardboard at a time.

[0079] The above-mentioned cardboard storage device 2 is only a preferred embodiment and is not limited to it. Based on this, targeted adjustments can be made according to actual needs to obtain different implementation methods. The rolling cardboard pressing assembly includes a support 21 and a bottom roller 212 rotatably connected to the bottom of the support 21. The axis of the bottom roller 212 is perpendicular to the side plate 24, and the bottom roller 212 can roll along the bottom plate 25.

[0080] In some specific embodiments, the rolling pressing board assembly includes a support 21 and a bottom roller 212. The bottom roller 212 is connected to the bottom of the support 21, and its axis is perpendicular to the side plate 24. The bottom roller 212 contacts the bottom plate 25, thereby supporting the rolling pressing board assembly. The bottom roller 212 is rotatably connected to the support 21, and it rolls forward along the inclined direction of the bottom plate 25 towards the first end, causing the support 21 to press against the stacked cardboard.

[0081] Preferably, the support 21 has a backing plate at one end near the cardboard, the backing plate being perpendicular to the base plate 25, that is, the backing plate being parallel to the end face of the stacked cardboard, the backing plate being in contact with the end face of the stacked cardboard, pushing the first end of the stacked cardboard to abut against the blocking block 29.

[0082] Based on the above specific embodiments, the rolling pressing plate assembly also includes upper rollers 22 rotatably connected to both sides of the upper part of the bracket 21. The axis of the upper rollers 22 is perpendicular to the base plate 25, and the upper rollers 22 can roll along the side plate 24.

[0083] In some specific embodiments, the upper roller 22 is connected to the upper part of the bracket 21, and the axis of the upper roller 22 is perpendicular to the base plate 25. The upper rollers 22 on both sides contact the inner sides of the side plates 24, limiting the rolling pressing plate assembly and the side plates 24 in the width direction to prevent the rolling pressing plate assembly from swaying left and right. Preferably, the upper roller 22 is rotatably connected to the bracket 21, and the upper roller 22 rolls along the side plates 24 to reduce friction.

[0084] Based on the above specific embodiments, the side plate 24 is provided with a sliding groove 27, and the middle roller 23 is connected to both sides of the middle part of the bracket 21. The axis of the middle roller 23 is perpendicular to the side plate 24, and the middle roller 23 extends into the sliding groove 27 on the corresponding side. The middle roller 23 can roll along the sliding groove 27.

[0085] In some specific embodiments, a groove 27 is provided along the length of the side plate 24, and the groove 27 is parallel to the bottom plate 25. A central roller 23 is located on both sides of the middle portion of the bracket 21, and the central roller 23 is connected to the bracket 21. The central roller 23 on both sides extends into the corresponding groove 27, and the axis of the central roller 23 is perpendicular to the side plate 24. As the bottom roller 212 rolls forward along the inclined direction of the bottom plate 25 towards the first end, the central roller 23 can slide along the groove 27, and the central roller 23 has a guiding function.

[0086] Furthermore, the central roller 23 includes a connecting shaft and a sleeve. The connecting shaft is fixedly connected to the bracket 21, and the sleeve is fitted over the connecting shaft. The sleeve rolls along the groove 27. This arrangement can further reduce the rolling resistance of the rolling pressure plate assembly in the paperboard storage device 2. Preferably, the central roller 23 includes two connecting shafts and corresponding sleeves. The ends of the two connecting shafts are connected by a connecting rod, which improves guidance and stability.

[0087] In another more reliable embodiment, based on any of the above embodiments, the tilt angle of the base plate 25 is 8°-12°.

[0088] In some specific embodiments, the tilt angle of the base plate 25 is greater than the friction self-locking angle, specifically any value between 8° and 12°, including the endpoint value, such as 10°, to ensure that the cardboard slides down smoothly. The tilt angle of the base plate 25 should not be too large, as a large angle will cause excessive adhesion between the stacked cardboards under the action of gravity, making it difficult for the cardboards to separate later.

[0089] In another more reliable embodiment, based on any of the above embodiments, the base plate 25 is provided with perforations 26 spaced apart along the direction in which the two side plates 24 are arranged.

[0090] In some specific embodiments, the base plate 25 has a cutout 26, and the base plate 25 is not a single plate, which reduces the contact area between the base plate 25 and the cardboard, reduces the friction between the cardboard and the rolling pressing assembly and the base plate 25, and facilitates the movement of the cardboard. The shape of the cutout 26 on the base plate 25 is not limited and can be set according to different specific applications.

[0091] Preferably, the base plate 25 is provided with perforations 26 at intervals along the direction in which the two side plates 24 are arranged, and the base plate 25 supports the cardboard at intervals in the width direction without affecting the support strength of the base plate 25 on the cardboard.

[0092] In another more reliable embodiment, based on any of the above embodiments, the side of the side plate 24 is provided with a photodetector 28 for detecting the vacuum adsorption frame.

[0093] In some specific embodiments, a photodetector 28 is also provided on the side of the side plate 24 for detecting the vacuum suction frame. When the photodetector 28 detects that the cardboard is abutting against the blocking block 29, it controls the air nozzle 211 to spray air so that the cardboard can be separated.

[0094] In another more reliable embodiment, based on any of the above embodiments, the first end of the side plate 24 is provided with an outwardly folded flange, and each side plate 24 flange is provided with two jet nozzles 211 and two blocking blocks 29, with the two jet nozzles 211 disposed between the two blocking blocks 29.

[0095] In some specific embodiments, the first end of the side plate 24 is provided with an outwardly folded flange, on which the jet nozzle 211 and the blocking block 29 are mounted. The flange increases the area of ​​the side plate 24, that is, increases the installation space of the side plate 24, which facilitates the installation of the jet nozzle 211 and the blocking block 29.

[0096] Each side panel 24 has two air nozzles 211 and two blocking blocks 29 on its flange. The two air nozzles 211 are positioned between the two blocking blocks 29 to position and spray air along the entire height direction of the cardboard, ensuring that the cardboard can be separated evenly and completely.

[0097] Based on the above specific embodiments, the blocking block 29 is provided with an elongated hole 210, and the blocking block 29 is fixed to the flange of the side plate 24 through the elongated hole 210 and fasteners.

[0098] In some specific embodiments, the blocking block 29 is provided with an elongated hole 210, and the flange of the side plate 24 has a round hole. Bolts pass through the elongated hole 210 and the round hole, and are tightened at the end by nuts, thus fixing the blocking block 29 and the flange of the side plate 24 together. The length of the elongated hole 210 is arranged laterally. Depending on the width of the cardboard, the nuts can be loosened to adjust the horizontal position of the blocking block 29 outward or inward, so as to accommodate cardboard of different widths. This makes adjustment convenient and has a wide range of applications.

[0099] In another more reliable embodiment, based on any of the above embodiments, the cardboard bending device 3 includes a slotting wheel set 31 and a bending wheel set 32.

[0100] The slotted wheel assembly 31 has multiple slotted plates;

[0101] The bending wheel assembly 32 includes a rotatable upper bending wheel 321 and a lower bending wheel 322. The upper bending wheel 321 includes an inner small wheel 3212 and an outer large wheel 3211. The lower bending wheel 322 cooperates with the inner small wheel 3212 of the upper bending wheel 321. A portion of the cardboard is pressed between the lower bending wheel 322 and the inner small wheel 3212 of the upper bending wheel 321.

[0102] In some specific embodiments, the cardboard bending device 3 includes a grooving wheel group 31 and a bending wheel group 32. The cardboard first enters the grooving wheel group 31 to be grooved, and then enters the bending wheel group 32 to be bent.

[0103] The slotting wheel assembly 31 includes an upper slotting wheel 311 and a lower slotting wheel 312, which are arranged vertically and their axes are on the same vertical plane. There is a gap between the upper slotting wheel 311 and the lower slotting wheel 312. The upper slotting wheel 311 and the lower slotting wheel 312 rotate in opposite directions and rotate inward relative to each other. The cardboard enters through the gap at the inlet end of the upper slotting wheel 311 and the lower slotting wheel 312 and exits through the outlet end.

[0104] The upper slotted wheel 311 has multiple slotted blades distributed along its central portion. These slotted blades are circumferentially distributed along the wheel surface of the upper slotted wheel 311 and are perpendicular to the wheel surface. Optionally, the slotted blades can be circular blades or long blades, with the length of the long blades circumferentially aligned with the upper slotted wheel 311.

[0105] The lower grooving wheel 312 has a relief groove 3123 in the middle of its wheel surface. The position, shape, and size of the relief groove 3123 match the position, shape, and size of the grooving plate. When the upper grooving wheel 311 and the lower grooving wheel 312 rotate inward relative to each other, the relief groove 3123 avoids the grooving plate, allowing the grooving plate to cut the cardboard, and the cut cardboard falls into the relief groove 3123. That is, during the process of the cardboard entering the gap between the upper grooving wheel 311 and the lower grooving wheel 312, when the cardboard passes the position of the grooving plate and the relief groove 3123, the end blade of the grooving plate punctures a groove in the corresponding position of the cardboard.

[0106] Multiple slotted pieces are spaced apart. As a cardboard sheet moves forward, it passes through multiple slotted pieces, leaving a row of slots along its length. It should be noted that the spacing between the slotted pieces should be moderate. If they are too close together, the strength of the cardboard will be reduced; if they are too sparse, the creases will not easily retain their shape after bending.

[0107] Meanwhile, the bending wheel assembly 32 includes an upper bending wheel 321 and a lower bending wheel 322, which are arranged vertically with their axes on the same vertical plane. There is a gap between the upper bending wheel 321 and the lower bending wheel 322. The upper bending wheel 321 and the lower bending wheel 322 rotate in opposite directions, rotating inward relative to each other. The cardboard enters through the gap at the inlet end of the upper bending wheel 321 and the lower bending wheel 322 and exits through the outlet end.

[0108] The upper bending wheel 321 includes an inner small wheel 3212 and an outer large wheel 3211. The lower bending wheel 322 engages with the inner small wheel 3212 of the upper bending wheel 321. There is a circumferential gap between the lower bending wheel 322 and the inner small wheel 3212 of the upper bending wheel 321. A portion of the cardboard is pressed into the gap between the lower bending wheel 322 and the inner small wheel 3212 of the upper bending wheel 321. That is, the cardboard enters from the inlet end of the gap between the lower bending wheel 322 and the inner small wheel 3212 of the upper bending wheel 321 and exits from the outlet end. Furthermore, the gap between the lower bending wheel 322 and the inner small wheel 3212 is smaller than the radius difference between the inner small wheel 3212 and the outer large wheel 3211, meaning that the lower bending wheel 322 and the outer large wheel 3211 have an overlapping area.

[0109] There is a gap between the outer end face of the inner small wheel 3212 of the lower bending wheel 322 and the upper bending wheel 321. The gap is slightly thicker than the thickness of the cardboard, for example, 0.1 mm thicker than the thickness of the cardboard. Since the outer end face of the inner small wheel 3212 and the inner end face of the outer large wheel 3211 are in contact, this gap is also the gap between the end face of the lower bending wheel 322 and the outer large wheel 3211 of the upper bending wheel 321. When the cardboard passes through the gap between the inner small wheel 3212 of the lower bending wheel 322 and the upper bending wheel 321, the side plate 24 of the cardboard bends at the end face of the lower bending wheel 322. The bent part enters the gap between the end face of the lower bending wheel 322 and the outer large wheel 3211. The gap between the end face of the lower bending wheel 322 and the outer large wheel 3211 squeezes the side edge of the cardboard, pressing out a crease. It should be noted that the slots in the slotted wheel assembly 31 and the creases in the bent wheel assembly 32 coincide.

[0110] The cardboard bending device 3 provided by the present invention first allows the cardboard to pass between the upper grooving wheel 311 and the lower grooving wheel 312 of the grooving wheel group 31, where grooves are intermittently made on the line to be bent on the cardboard. Then, the cardboard passes between the upper bending wheel 321 and the lower bending wheel 322 of the bending wheel group 32, and bends along the grooves to create creases. This reduces the difficulty of bending the cardboard and makes it easier for the cardboard to maintain its shape after bending.

[0111] The above-mentioned cardboard bending device 3 is only a preferred embodiment and is not limited to it. Based on this, targeted adjustments can be made according to actual needs to obtain different implementation methods. The upper grooving wheel 311 and the lower grooving wheel 312 each have two grooving wheels on the left and right, and the upper bending wheel 321 and the lower bending wheel 322 each have two bending wheels on the left and right. The distance between the two grooving wheels and the two bending wheels on the left and right is the same.

[0112] In some specific embodiments, both the upper grooving wheel 311 and the lower grooving wheel 312 have two grooving wheels on the left and right sides, respectively, and cut a row of grooves on each side of the cardboard. The cardboard enters the gap between the upper grooving wheel 311 and the lower grooving wheel 312 at one time, cutting two grooves, thereby improving work efficiency.

[0113] Both the upper bending wheel 321 and the lower bending wheel 322 have two bending wheels on the left and right sides, respectively, to bend the cardboard with a crease on each side. The cardboard enters the gap between the upper bending wheel 321 and the lower bending wheel 322 in one go, bending with two creases, thus improving work efficiency.

[0114] The two grooving wheels on the left and right are equidistant from the two bending wheels on the left and right, ensuring that the grooves made by the two grooving wheels and the creases made by the two bending wheels coincide, reducing the difficulty of alignment when placing cardboard.

[0115] Based on the above specific embodiments, the upper slotted wheel 311 includes a first wheel 3112, a second wheel 3113, and a slotted wheel piece 3111 fixedly clamped between the first wheel 3112 and the second wheel 3113, with multiple slotted pieces distributed in a ring on the slotted wheel piece 3111.

[0116] In some specific embodiments, the upper slotted wheel 311 includes a first wheel 3112, a second wheel 3113, and a slotted wheel piece 3111. The slotted wheel piece 3111 is fixedly clamped between the first wheel 3112 and the second wheel 3113, and multiple slotted pieces are distributed in a ring on the slotted wheel piece 3111. The first wheel 3112, the second wheel 3113, and the slotted wheel piece 3111 can be integrally formed, resulting in high strength, no connecting gaps, good overall integrity, and smoother fit.

[0117] The first wheel 3112, the second wheel 3113, and the slotted wheel 3111 can also be processed separately, resulting in a simple structure that is easy to manufacture. After individual processing, they can be assembled together, either by welding for a strong connection or by bolting for a detachable connection. Individual components can be replaced, reducing costs.

[0118] Based on the above specific embodiments, multiple slotted pieces are evenly distributed in a ring on the circumferential surface of the slotted wheel piece 3111.

[0119] In some specific embodiments, multiple slotted pieces are evenly distributed, with equal spacing between them, and the slotting distance on the cardboard is the same. This results in a more uniform stress distribution on the cardboard, reducing the difficulty of bending the cardboard and making it easier for the cardboard to maintain its shape after bending.

[0120] Based on the above specific embodiments, the lower slotted wheel 312 includes a third wheel and a fourth wheel, which are fixedly connected, and the gap between the third wheel and the fourth wheel forms an avoidance groove 3123.

[0121] In some specific embodiments, the lower slotted wheel 312 includes a third wheel and a fourth wheel, which are fixedly connected by welding or bolts, and there is a gap between the third wheel and the fourth wheel to form a relief groove 3123. The split design is convenient for processing. Alternatively, the lower slotted wheel 312 can be processed as a whole, with a relief groove 3123 milled in the middle of the lower slotted wheel 312, resulting in higher overall strength.

[0122] In another more reliable embodiment, based on any of the above embodiments, the inner small wheel 3212 and the outer large wheel 3211 of the upper bending wheel 321 are integrally formed.

[0123] In some specific embodiments, the inner small wheel 3212 and the outer large wheel 3211 of the upper bending wheel 321 are integrally set, which is reasonable in structure, easy to process, and avoids paper jamming in the gap. The inner small wheel 3212 and the outer large wheel 3211 can also be separate and connected by welding, which makes processing more convenient.

[0124] In another more reliable embodiment, based on any of the above embodiments, the upper slotted wheel 311 and the lower slotted wheel 312 have the same diameter, the lower bending wheel 322 has the same diameter as the inner small wheel 3212 of the upper bending wheel 321, the rotation speed is synchronized, the time to rotate one revolution is the same, and the cooperation is coordinated.

[0125] In another more reliable embodiment, based on any of the above embodiments, the slotted blade is a long strip blade.

[0126] In some specific embodiments, the shape of the slotted blade is not limited; it can be a round blade, a long blade, or other suitable shapes. Optionally, the slotted blade is a long blade whose length is along the circumference of the upper slotting wheel 311, and its length is much greater than its width. The corresponding hole is a long hole 210. Bending along the long axis of the long hole 210 reduces the bending length of the cardboard, reduces the difficulty of bending the cardboard, and makes it easier for the cardboard to maintain its shape after bending.

[0127] In another more reliable embodiment, based on any of the above embodiments, the cardboard bending device 3 further includes a bending drive mechanism. The bending drive mechanism includes a first drive shaft 33 and a second drive shaft 34. The first drive shaft 33 and the second drive shaft 34 are driveably connected. The first drive shaft 33 is simultaneously driveably connected to the lower slotting wheel 312 and the lower bending wheel 322 via a chain. The second drive shaft 34 is simultaneously driveably connected to the upper slotting wheel 311 and the upper bending wheel 321 via a chain. Thus, a single power source can drive the upper slotting wheel 311 and the lower slotting wheel 312 to rotate in opposite directions, and simultaneously drive the upper bending wheel 321 and the lower bending wheel 322 to rotate in opposite directions. This results in a simple structure and higher rotational synchronization.

[0128] The various embodiments in this specification are described in a progressive manner, with each embodiment focusing on the differences from other embodiments. The same or similar parts between the various embodiments can be referred to each other.

[0129] The box-making machine provided by this invention has been described in detail above. Specific examples have been used to illustrate the principles and implementation methods of this invention. The descriptions of the embodiments above are merely for the purpose of helping to understand the method and core ideas of this invention. It should be noted that those skilled in the art can make various improvements and modifications to this invention without departing from its principles, and these improvements and modifications also fall within the protection scope of the claims of this invention. Therefore, this invention is not limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A box-submitting machine, characterized in that, It includes a frame (1), a cardboard storage device (2) mounted on the frame (1), a cardboard unloading device (4), a cardboard bending device (3), a first conveying device (7), and a second conveying device (6). The first conveying device (7) is located below the cardboard feeding device (4) and the cardboard bending device (3); The cardboard storage device (2) is used to store stacked cardboard, and the cardboard storage device (2) has a suction opening on the side near the cardboard feeding device (4); The cardboard feeding device (4) includes a linear guide rail (46) hinged to the frame (1), a vacuum suction cup frame (47) installed at the lower end of the linear guide rail (46), and a reciprocating drive mechanism that drives the vacuum suction cup frame (47) to reciprocate between the suction opening and the feeding position of the first conveying device (7). The middle part of the linear guide (46) is hinged to one end of the vacuum suction cup frame (47) and the other end of the rocker arm (48). The other end of the rocker arm (48) is fixedly connected to the rocker arm shaft (49). The rocker arm shaft (49) is connected to the reciprocating drive mechanism. The reciprocating drive mechanism includes a geared motor (41), a crank shaft (42), a crank disc (43), a connecting rod (44), and a rocker disc (45). The output shaft of the geared motor (41) is connected to the crank shaft (42) in a transmission connection. The crank shaft (42) is fixedly connected to the center of the crank disc (43). The edge of the crank disc (43) is hinged to one end of the connecting rod (44). The other end of the connecting rod (44) is hinged to the edge of the rocker disc (45). The center of the rocker disc (45) is connected to the rocker arm (48). The second conveying device (6) is located behind the first conveying device (7) and below the cardboard bending device (3). The second conveying device (6) extends above the paper bundle and face conveying device (5). The paper bundle and face conveying device (5) is equipped with a sensor to detect whether the paper bundle and face are in position. The sensor and the reciprocating drive mechanism are connected to the controller. The cardboard bending device (3) includes a slotting wheel assembly (31) and a bending wheel assembly (32). The slotting wheel assembly (31) has multiple slotted pieces. The bending wheel assembly (32) includes a rotatable upper bending wheel (321) and a lower bending wheel (322). The upper bending wheel (321) includes an inner small wheel (3212) and an outer large wheel (3211). The lower bending wheel (322) cooperates with the inner small wheel (3212) of the upper bending wheel (321). A portion of the cardboard is pressed between the lower bending wheel (322) and the inner small wheel (3212) of the upper bending wheel (321).

2. The box-making machine according to claim 1, characterized in that, The upper part of the frame (1) is symmetrically provided with two cardboard storage devices (2) and two cardboard feeding devices (4), and the two cardboard storage devices (2) and the two cardboard feeding devices (4) are set in a one-to-one correspondence.

3. The box-making machine according to claim 1, characterized in that, The first conveying device (7) includes two first conveying slides (72), a first conveying chain (71) and a first push block (73) connected to the first conveying chain (71). The first conveying chain (71) is located below the middle of the two first conveying slides (72), and the height of the first push block (73) is higher than the height of the first conveying slides (72).

4. The box-making machine according to claim 3, characterized in that, The second conveying device (6) includes a second conveying slide (61), a second conveying chain (63), and a second push block (62) connected to the second conveying chain (63). The lower part of the second conveying chain (63) is parallel to the second conveying slide (61). The two second conveying chains (63) are located above the middle of the two second conveying slides (61). The bottom surface of the second push block (62) is lower than the upper surface of the second conveying slide (61).

5. The box-making machine according to claim 4, characterized in that, The second conveyor slide (61) is inclined downward from the cardboard bending device (3) to the paper bundle hanging conveyor (5).

6. The box-making machine according to claim 4, characterized in that, The first conveying slide (72) is L-shaped with an inward curve, and the second conveying slide (61) is "1" shaped.

7. The box-submitting machine according to any one of claims 1-6, characterized in that, The cardboard storage device (2) includes a base plate (25) and two side plates (24) connected to the base plate (25). The cardboard storage device (2) has a first end and a second end opposite to each other. The base plate (25) is inclined downward from the second end to the first end. Multiple blocking blocks (29) are fixedly connected to the end face of the base plate (25) and the two side plates (24) at the first end. Multiple air nozzles (211) are connected to the end face of the two side plates (24) at the first end. The air jet direction of the air nozzles (211) is perpendicular to the stacking direction of the cardboard.

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