Carton sealing machine for large carton

Abstract

The carton sealing machine comprises a machine frame, a plurality of rotating rollers are rotatably arranged on the machine frame along the same horizontal axis at intervals, a connecting frame is arranged on the machine frame and located above the rotating rollers, and a cover folding device is arranged on the connecting frame. Adjusting seats are symmetrically arranged on the two sides of the connecting frame and located above the multiple rotating rollers, conveying belts are arranged on the two adjusting seats correspondingly, the two conveying belts are oppositely arranged so that a carton conveying area can be formed between the two conveying belts, and a shaping structure and a blocking structure are sequentially arranged on the machine frame and located below the cover folding device in the conveying direction of the conveying belts. The shaping structure comprises vacuum chucks correspondingly arranged on the two adjusting seats respectively, and a first driving piece capable of driving the two vacuum chucks to move close to or far away from each other; the blocking structure comprises limiting baffles symmetrically arranged on the two sides of the connecting frame and a second driving piece capable of driving the two limiting baffles to move close to or away from each other relatively.

Description

TECHNICAL FIELD

[0001] The utility model relates to a carton sealing machine for large cartons. BACKGROUND

[0002] The carton sealing machine is mainly used for carton sealing and packaging, and can be used independently or in combination with a flow line, and can be used independently or in combination with a carton forming and opening machine, a carton filling machine, a labeling machine, a bundling machine, a pallet stacking machine, a conveyor, and other equipment to form a packaging flow line, which is a necessary equipment for the packaging flow line operation.

[0003] In actual application, during the folding process of the large carton, the large carton is prone to deformation in the middle due to its large size, and the folding of the carton in the deformed state is prone to increase the degree of deformation or damage of the carton, thereby obtaining a carton carrier that does not meet the quality requirements, which cannot meet the use requirements. UTILITY MODEL CONTENTS

[0004] In view of the defects of the prior art, the utility model solves the technical problem of providing a carton sealing machine for large cartons.

[0005] A carton sealing machine for large cartons, comprising a rack, a plurality of rotating rollers are arranged on the rack along the same horizontal axis and are spaced apart, a connecting frame is arranged on the rack above the plurality of rotating rollers, a folding device and a carton sealing machine core are respectively arranged on the connecting frame, adjusting seats are symmetrically arranged on both sides of the connecting frame above the plurality of rotating rollers, conveying belts are arranged on the two adjusting seats, and the two conveying belts are arranged opposite to each other to form a carton conveying area therebetween, a shaping structure and a blocking structure are sequentially arranged on the rack below the folding device along the conveying direction of the conveying belt;

[0006] The shaping structure comprises vacuum suction cups respectively arranged on the two adjusting seats, and a first driving member that can drive the two vacuum suction cups to move relatively close to or away from each other;

[0007] The blocking structure comprises limiting baffles symmetrically arranged on both sides of the connecting frame, and a second driving member that can drive the two limiting baffles to move relatively close to or away from each other.

[0008] In one embodiment, two side pressure wheels are arranged on one side of the rack near the input end of the conveying belt below the folding device, and a third driving member that can drive the side pressure wheels to move up and down, and the lower side of the side pressure wheel is a conical surface.

[0009] In one embodiment, the folding device includes an L-shaped folding plate fixedly arranged on a frame, side pressure plates rotatably arranged on the frame and symmetrically located on both sides of the L-shaped folding plate, and a rear pressure plate rotatably arranged on the frame at one end of the L-shaped folding plate. The frame is respectively provided with first hydraulic rods rotatably arranged on both sides of the L-shaped folding plate, which can drive the side pressure plates to swing relative to the L-shaped folding plate, and the frame is provided with a second hydraulic rod rotatably arranged on the frame, which can drive the rear pressure plate to swing relative to the L-shaped folding plate.

[0010] In one embodiment, the connecting frame is provided with an adjustment structure capable of driving the two adjustment seats to move relative to each other to adjust the distance between the two adjustment seats;

[0011] The adjustment structure includes a first guide rod and a second guide rod which are coaxially and spaced apart and rotated on the connecting frame, and the adjustment seat is movably sleeved on the first guide rod and the second guide rod; wherein the first guide rod is a screw rod, the first guide rod has a first thread segment and a second thread segment, the thread rotation direction of the first thread segment is opposite to the thread rotation direction of the second thread segment, and the two adjustment seats include a first adjustment seat and a second adjustment seat, the first adjustment seat is correspondingly threaded and sleeved on the first thread segment, and the second adjustment seat is correspondingly threaded and sleeved on the second thread segment.

[0012] In one embodiment, the connecting frame is provided with a first motor capable of driving the first guide rod to rotate, or is provided with a first rotating handle fixedly connected to one end of the first guide rod.

[0013] In one embodiment, the side pressure wheel and the third driving member are respectively arranged on the adjustment seat in a one-to-one correspondence.

[0014] In one embodiment, the frame is provided with a lifting device capable of driving the connecting frame to move up and down;

[0015] The lifting device includes a third guide rod and a fourth guide rod coaxially and spaced apart and rotatably arranged on a frame, and the connecting frame is movably sleeved on the third guide rod and the fourth guide rod; wherein the third guide rod is a screw rod, and the connecting frame is threadedly connected to the third guide rod.

[0016] In one embodiment, the frame is provided with a second motor capable of driving the third guide rod to rotate, or is provided with a second rotating handle fixedly connected to one end of the third guide rod.

[0017] In one embodiment, the first driving member, the second driving member and the third driving member are respectively a cylinder or an electric telescopic rod.

[0018] In summary, the present invention has the following beneficial effects compared to the prior art:

[0019] The large cartons of the present invention are conveyed by frictional contact of conveyor belts on both sides, and the blocking structure enables the cartons to stop flat under the folding mechanism. At this time, the first driving member of the shaping structure drives the vacuum suction cups located on both sides of the carton to move relatively close to each other, so that the vacuum suction cups are adsorbed on both sides of the carton. Then, the first driving member is reset to drive the vacuum suction cups to move relatively away from each other, thereby pulling the middle parts of both sides of the carton, so that the concave middle parts on both sides of the carton can be restored to be flush with the corresponding side walls. At this time, the folding device works again to press down and fold the side covers on both sides of the carton, effectively avoiding the deformation or damage of the carton caused by folding the carton when the large carton is concave and deformed. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 This is one of the three-dimensional structural schematic diagrams of a carton sealing machine for large cartons in one embodiment of the present utility model;

[0021] Figure 2 This is a second schematic diagram of the three-dimensional structure of a carton sealing machine for large cartons in one embodiment of the present utility model;

[0022] Figure 3 This is one of the exploded structural diagrams of a carton sealing machine for large cartons in one embodiment of the present invention;

[0023] Figure 4 This is a second schematic diagram of the exploded structure of a carton sealing machine for large cartons in one embodiment of the present utility model;

[0024] Figure 5 This is the third schematic diagram of the exploded structure of a carton sealing machine for large cartons in one embodiment of the present invention. DETAILED DESCRIPTION

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

[0026] like Figures 1 to 5The embodiment of the present invention shown preferably provides a carton sealing machine for large cartons, comprising a frame 1, on which a plurality of rotating rollers 2 are arranged to rotate at intervals along the same horizontal axis, a connecting frame 3 is arranged on the frame 1 and above the plurality of rotating rollers 2, a folding device 4 and a carton sealing mechanism 99 are respectively arranged on the connecting frame 3, and adjustment seats 5 are symmetrically arranged on both sides of the connecting frame 3 and above the plurality of rotating rollers 2, and conveyor belts 6 are arranged on both adjustment seats 5, and the two conveyor belts 6 are arranged opposite to each other. The connecting frame 3 is arranged so that a carton conveying area is formed therebetween. A shaping structure and a blocking structure are sequentially arranged on the frame 1 and below the folding device 4 along the conveying direction of the conveyor belt 6; the shaping structure includes vacuum suction cups 8 respectively arranged on the two adjustment seats 5, and a first driving member 9 capable of driving the two vacuum suction cups 8 to move relatively closer or farther away; the blocking structure includes limit baffles 10 symmetrically arranged on both sides of the connecting frame 3, and a second driving member 11 capable of driving the two limit baffles 10 to move relatively closer or farther away.

[0027] Specifically, large cartons are conveyed by frictional contact of conveyor belts on both sides, and the limit baffle is driven to move by the second driving member in the blocking structure, so that the limit baffle is in contact with the carton so that the carton can be level and stagnant under the folding mechanism. At this time, the first driving member of the shaping structure drives the vacuum suction cups on both sides of the carton to move relatively close to each other, so that the vacuum suction cups are adsorbed on both sides of the carton, and then the first driving member is reset to drive the vacuum suction cups to move relatively away from each other, thereby pulling the middle parts of both sides of the carton, so that the concave middle parts of both sides of the carton can be restored to be level with the corresponding side walls, and at this time the folding device works again to press down the side covers on both sides of the carton to fold, effectively avoiding the deformation or damage of the carton caused by folding the carton when the large carton is concave and deformed.

[0028] Furthermore, two side pressure rollers 12 are provided on the frame 1 and located on one side of the flap folding device 4 near the input end of the conveyor belt 6, as well as a third driving member 13 capable of driving the side pressure rollers 12 to move up and down. The lower side surfaces of the side pressure rollers 12 are conical surfaces. Specifically, the third driving member drives the side pressure rollers downward so that the lower conical surfaces of the side pressure rollers respectively contact the front and rear flaps of the carton in a one-to-one correspondence, causing the front and rear flaps to move relatively apart and expand outward, so that the flap folding device can first press the right flap of the carton inward to close it.

[0029] Furthermore, the folding device 4 includes an L-shaped folding plate 41 fixedly provided on the frame 1, a side pressure plate 42 rotatably provided on the frame 1 and symmetrically located on both sides of the L-shaped folding plate 41, and a rear pressure plate 43 rotatably provided on the frame 1 and located at one end of the L-shaped folding plate 41. The frame 1 is provided with a first hydraulic rod 44 rotatably provided on both sides of the L-shaped folding plate 41, which can drive the side pressure plate 42 to swing relative to the L-shaped folding plate 41, and a second hydraulic rod 45 rotatably provided on the frame 1, which can drive the rear pressure plate 43 to swing relative to the L-shaped folding plate 41.

[0030] The left and right folding plates are then swung to push the left folding plates away from the carton so that the carton can be folded inwards.

[0031] Furthermore, the connecting frame 3 is provided with an adjustment structure that can drive the two adjustment seats 5 to move relative to each other to adjust the distance between the two adjustment seats 5; the adjustment structure includes a first guide rod 51 and a second guide rod 52 that are coaxially spaced and rotated on the connecting frame 3, and the adjustment seat 5 is movably sleeved on the first guide rod 51 and the second guide rod 52; wherein, the first guide rod 51 is a screw, and the first guide rod 51 has a first thread segment and a second thread segment, and the thread rotation direction of the first thread segment is opposite to the thread rotation direction of the second thread segment, and the two adjustment seats 5 include a first adjustment seat 53 and a second adjustment seat 54, and the first adjustment seat 53 is correspondingly threadedly fitted on the first thread segment, and the second adjustment seat 54 is correspondingly threadedly fitted on the second thread segment.

[0032] Specifically, the first guide rod is rotated to make the first thread segment and the second thread segment on the screw rotate synchronously, so that the thread rotation direction of the first thread segment and the thread rotation direction of the second thread segment are set in opposite directions to drive the first adjustment seat and the second adjustment seat to move relative to or away from each other along the axial direction of the second guide rod, thereby realizing the distance adjustment of the two adjustment seats.

[0033] Furthermore, the connecting frame 3 is provided with a first motor capable of driving the first guide rod 51 to rotate or a first rotating handle fixedly connected to one end of the first guide rod 51. Specifically, the user can choose to install the first motor to electrically drive the first guide rod or to install the first rotating handle to manually rotate the first guide rod.

[0034] Furthermore, the side pressure wheel 12 and the third driving member 13 are respectively and one-to-one arranged on the adjustment seat 5. Then the side pressure wheel and the third driving member can be synchronously driven by the adjustment structure to adjust the relative displacement of the adjustment seat.

[0035] Furthermore, the frame 1 is provided with a lifting device capable of driving the connecting frame 3 to move up and down. The lifting device includes a third guide rod 31 and a fourth guide rod 32, which are coaxially and rotatably disposed on the frame 1. The connecting frame 3 is movably sleeved on the third guide rod 31 and the fourth guide rod 32. The third guide rod 31 is a screw, and the connecting frame 3 is threadedly connected to the third guide rod 31. Specifically, the third guide rod rotates, causing the connecting frame to rotate with the third guide rod, thereby threading the connecting frame along the axial direction of the fourth guide rod, thereby achieving lifting and lowering adjustment of the connecting frame relative to the frame.

[0036] Furthermore, the frame 1 is provided with a second motor capable of driving the third guide rod 31 to rotate or a second rotating handle fixedly connected to one end of the third guide rod 31. Specifically, the user can choose to install a second motor to electrically drive the third guide rod or install a second rotating handle to manually rotate the third guide rod.

[0037] Furthermore, the first driving member 9 , the second driving member 11 and the third driving member 13 are cylinders or electric telescopic rods respectively.

[0038] The above shows and describes the basic principles and main features of the present invention and the advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The above embodiments and descriptions are only for illustrative purposes. Various changes and improvements may be made to the present invention without departing from the spirit and scope of the present invention. Such changes and improvements fall within the scope of the present invention. The scope of protection claimed in the present invention is defined by the appended claims and their equivalents.

Claims

1. A carton sealing machine for large cartons, comprising a frame (1), wherein a plurality of rotating rollers (2) are arranged on the frame (1) to rotate at intervals along the same horizontal axis, and wherein: A connecting frame (3) is provided on the frame (1) and is located above the plurality of rotating rollers (2); a folding device (4) is provided on the connecting frame (3); adjustment seats (5) are symmetrically provided on both sides of the connecting frame (3) and are located above the plurality of rotating rollers (2); a conveyor belt (6) is provided on each of the two adjustment seats (5), and the two conveyor belts (6) are arranged opposite to each other so as to form a carton conveying area therebetween; a shaping structure and a blocking structure are sequentially provided on the frame (1) and are located below the folding device (4) along the conveying direction of the conveyor belt (6); A shaping structure comprising vacuum suction cups (8) respectively arranged on the two adjustment seats (5), and a first driving member (9) capable of driving the two vacuum suction cups (8) to move relatively closer or farther away; The blocking structure comprises limiting baffles (10) symmetrically arranged on both sides of the connecting frame (3), and a second driving member (11) capable of driving the two limiting baffles (10) to move relatively closer or farther away.

2. A carton sealing machine for large cartons according to claim 1, characterized in that: Two side pressure wheels (12) are provided on the frame (1) and located on one side of the cover folding device (4) close to the input end of the conveyor belt (6), as well as a third driving member (13) capable of driving the side pressure wheels (12) to move up and down, and the lower side surface of the side pressure wheel (12) is a conical surface.

3. A carton sealing machine for large cartons according to claim 1, characterized in that: The folding device (4) comprises an L-shaped folding plate (41) fixedly arranged on the frame (1), side pressure plates (42) rotatably arranged on the frame (1) and symmetrically located on both sides of the L-shaped folding plate (41), and a rear pressure plate (43) rotatably arranged on the frame (1) and located at one end of the L-shaped folding plate (41), first hydraulic rods (44) capable of driving the side pressure plates (42) to swing relative to the L-shaped folding plate (41) are rotatably arranged on both sides of the L-shaped folding plate (41) on the frame (1), and a second hydraulic rod (45) capable of driving the rear pressure plate (43) to swing relative to the L-shaped folding plate (41) is rotatably arranged on the frame (1).

4. A carton sealing machine for large cartons according to claim 2, characterized in that: The connecting frame (3) is provided with an adjustment structure capable of driving the two adjustment seats (5) to move relative to each other to adjust the distance between the two adjustment seats (5); The adjustment structure comprises a first guide rod (51) and a second guide rod (52) which are coaxially spaced and rotatably arranged on a connecting frame (3); the adjustment seat (5) is movably sleeved on the first guide rod (51) and the second guide rod (52); wherein the first guide rod (51) is a screw rod, the first guide rod (51) has a first thread segment and a second thread segment, the thread rotation direction of the first thread segment is opposite to the thread rotation direction of the second thread segment, the two adjustment seats (5) comprise a first adjustment seat (53) and a second adjustment seat (54), the first adjustment seat (53) is sleeved on the first thread segment in a corresponding threaded manner, and the second adjustment seat (54) is sleeved on the second thread segment in a corresponding threaded manner.

5. A carton sealing machine for large cartons according to claim 4, characterized in that: The connecting frame (3) is provided with a first motor capable of driving the first guide rod (51) to rotate, or is provided with a first rotating handle fixedly connected to one end of the first guide rod (51).

6. A carton sealing machine for large cartons according to claim 4, characterized in that: The side pressure wheel (12) and the third driving member (13) are respectively arranged on the adjustment seat (5) in a one-to-one correspondence.

7. The carton sealing machine for large cartons according to claim 1, characterized in that: The frame (1) is provided with a lifting device capable of driving the connecting frame (3) to move up and down; The lifting device comprises a third guide rod (31) and a fourth guide rod (32) which are coaxially arranged on a frame (1) and rotated at intervals, and the connecting frame (3) is movably sleeved on the third guide rod (31) and the fourth guide rod (32); wherein the third guide rod (31) is a screw rod, and the connecting frame (3) is threadedly connected to the third guide rod (31).

8. The carton sealing machine for large cartons according to claim 7, characterized in that: The frame (1) is provided with a second motor capable of driving the third guide rod (31) to rotate, or a second rotating handle fixedly connected to one end of the third guide rod (31).

9. The carton sealing machine for large cartons according to claim 2, characterized in that: The first driving member (9), the second driving member (11) and the third driving member (13) are respectively cylinders or electric telescopic rods.

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