Packaging box edge folding device of box folding machine

Abstract

The utility model discloses a packaging box edge folding device of a box folding machine, which comprises a transfer assembly used for simultaneously transferring a plurality of packaging box paperboards to a station from back to front and stopping a packaging box from advancing in an edge folding process; the side edge folding assembly is used for inwards folding a pair of left and right side lugs of each packaging box; the main edge folding assembly is used for folding the main lug of each packaging box, so that the main tongue is clamped in the packaging box; the transferring assembly is transversely arranged on the lower portion of the conveying assembly, and the side edge folding assembly and the main edge folding assembly are sequentially arranged on one side of the conveying assembly. The transfer assembly transfers the packaging boxes on a plurality of stations to the next station; the side edge folding assembly folds the left folding edge and the right folding edge of each packaging box inwards in sequence, the main edge folding assembly pushes and presses the main folding edge of each packaging box in sequence, and the main tongues are clamped in the packaging boxes. One assembly is designed for each process, the structure is compact, and assembly line operation is more time-saving and convenient.

Description

Technical Field

[0001] The utility model relates to the technical field of folding cartons for packaging boxes, and mainly relates to a folding edge device for packaging boxes of a folding carton machine. Background Art

[0002] The existing folding carton machines for packaging boxes are mainly for folding a single-layer flat cardboard. The folding method is as follows: first, position, support and press the middle panel of the packaging box cardboard; then, use several folding edge cylinders to fold up the side panels of the packaging box cardboard upwards, and use a pressing edge cylinder to drive a pressing edge head to press the protrusion of the sealing main ear into the semi-elliptical hole at the edge of the side panel of the packaging box cardboard; bond the connecting and overlapping parts of the packaging box.

[0003] The components and parts of such folding carton equipment are relatively complex and diverse, and the folding time for each packaging box is relatively long; the transportation route of the automated production line is not smooth, delaying the subsequent processes. The universality is low, and it is not convenient to place products inside the packaging boxes one by one subsequently.

[0004] The packaging box is conveyed by a conveying component. While conveying the whole packaging box, it folds the edges at one end of the packaging box; the folding mechanism is fixedly arranged on the frame. The packaging box moves forward at a uniform speed through the conveying component. Only one action mechanism can be set at one working station; since there are many set working procedure stations, the equipment occupies a large area and the folding time is long; the folding edge action of the packaging box is not continuous, resulting in the automatic spreading of the folding edge when the packaging box is folded, affecting the subsequent folding action. Content of the Utility Model

[0005] The technical problem to be solved by the utility model is to provide a folding edge device for a folding carton machine with a compact design structure for each component and a more time-saving and convenient folding edge process for the production line.

[0006] The technical problem to be solved by the utility model can be achieved by adopting the following technical solutions:

[0007] A folding edge device for a folding carton machine, characterized by comprising:

[0008] A conveying component, used for horizontally conveying each packaging box at uniform intervals;

[0009] A transfer component, used for simultaneously transferring several packaging box cardboards forward by one working station from back to front and blocking the forward movement of the packaging box during the folding edge process;

[0010] A side folding edge component, used for folding the left and right pair of side ears of each packaging box inwards;

[0011] A main folding edge component, used for folding the main ear of each packaging box, and then the main tongue is clamped inside the packaging box;

[0012] The frame, the conveying assembly is horizontally arranged on the frame, the transfer assembly is horizontally arranged below the conveying assembly, and the side hemming assembly and the main hemming assembly are sequentially arranged on one side of the conveying assembly.

[0013] In a preferred embodiment of the present utility model, the conveying assembly includes a conveying motor, at least one driving roller, at least one driven roller, and at least one conveyor belt. A synchronous drive is adopted between the output gear of the conveying motor and the driving roller, and the conveyor belt is sleeved on the driving roller and the driven roller; the output shaft of the conveying motor drives the output gear, the driving roller, the conveyor belt, and the driven roller in sequence, and the conveyor belt conveys cardboard boxes one by one from right to left.

[0014] In a preferred embodiment of the present utility model, the transfer assembly includes at least two clamping frames, a transverse translation cylinder, and at least one longitudinal translation cylinder. The cylinder part of the longitudinal translation cylinder is longitudinally arranged on the frame, and the cylinder part of the transverse translation cylinder is horizontally arranged at the piston rod end of the longitudinal translation cylinder; each clamping frame clamps a cardboard box respectively, the transverse translation cylinder is used to drive the clamping frame and the connected cardboard box to move horizontally, and the longitudinal translation cylinder is used to drive the clamping frame and the connected cardboard box to move vertically.

[0015] In a preferred embodiment of the present utility model, the side hemming assembly includes a side hemming bracket, a side transverse translation cylinder, a side hemming cylinder, and a side hemming plate. The side hemming bracket is longitudinally arranged on the frame, the cylinder part of the side transverse translation cylinder is horizontally installed on the side hemming bracket, the cylinder end of the side hemming cylinder is horizontally and vertically installed at the piston rod end of the side transverse translation cylinder, and one end of the side hemming plate is inclined and butted against the piston rod end of the side hemming cylinder.

[0016] In a preferred embodiment of the present utility model, the main hemming assembly includes a main hemming bracket, a main pushing edge cylinder, a main pushing edge plate, a main pressing tongue cylinder, and a main pressing tongue plate. The main hemming bracket is longitudinally arranged on the frame; the cylinder parts of the main pushing edge cylinder and the main pressing tongue cylinder are installed parallel to each other on the main hemming bracket, and the main pushing edge cylinder and the main pressing tongue cylinder are respectively perpendicular to the box mouth end face of the cardboard box from bottom to top; the piston rod of the main pushing edge cylinder is used to push the main hem of the cardboard box, and the piston rod of the main pressing tongue cylinder is used to press the main tongue of the cardboard box into the interior of the cardboard box.

[0017] In a preferred embodiment of the present utility model, the cardboard box includes a front cardboard, a rear cardboard, a left cardboard, a right cardboard, and a pair of left hems, right hems, main hems, and main pressing tongues respectively arranged at the top and bottom of the cardboard box; the hemming device folds the hems at one end of the cardboard box.

[0018] In a preferred embodiment of the present utility model, the clamping frame includes a bottom plate and at least four clamping plates. The bottom plate is horizontally arranged at the bottom of the conveyor belt, and the bottom ends of the clamping plates are vertically fixed at the four corners of the bottom plate.

[0019] In a preferred embodiment of the present utility model, the inclination angle between the side folding edge plate and the box opening of the packaging box is 0 - 45 degrees.

[0020] In a preferred embodiment of the present utility model, the longitudinal section of the main pushing edge plate is in an inverted U shape; the longitudinal section of the main pressing tongue plate is in an inverted L shape.

[0021] The beneficial effects of the present utility model are as follows: A folding edge device for a packaging box of a folding box machine. The conveying component transports a square packaging box whose internal four corners have been expanded by an expanding device, and the transfer component transfers the packaging boxes at several workstations to the next workstation; the side folding edge component sequentially folds the left and right folding edges of each packaging box inward, and the main folding edge component sequentially presses the main folding edge and the main tongue of each packaging box to be clamped inside the packaging box; each process is designed with a component, with a compact structure and more time-saving and convenient pipeline operation.

[0022] The clamping frame of the transfer component just clamps the packaging box, playing a role of temporary positioning, and blocking the forward movement of the packaging box cardboard during the operation of the two folding edge processes respectively, facilitating the smooth progress of the side folding edge process and the main folding edge process. Brief Description of the Drawings

[0023] Figure 1 is a schematic structural diagram of a folding edge device for a packaging box of a folding box machine of the present utility model.

[0024] Figure 2 is the second schematic structural diagram of a folding edge device for a packaging box of a folding box machine of the present utility model.

[0025] Figure 3 is a schematic structural diagram of the transfer component of the present utility model.

[0026] Figure 4 is a schematic structural diagram of the side folding edge component of the present utility model.

[0027] Figure 5 is a schematic structural diagram of the main folding edge component of the present utility model.

[0028] Reference Numerals in the Drawings:

[0029] Frame 10. Packaging box; Left folding edge 11, Right folding edge 12, Main folding edge 13, Main pressing tongue. Conveying component; Conveyor belt 21.

[0030] Transfer component 30; Clamping frame, Bottom plate 31, Clamping plate 32; Transverse moving cylinder 33, Longitudinal moving cylinder 34.

[0031] Side folding edge assembly 40; side folding edge bracket 41, side horizontal translation cylinder 42, side folding edge cylinder 43, side folding edge plate 44.

[0032] Main folding edge assembly 50; main folding edge bracket 51, main pushing edge cylinder 52, main pushing edge plate 53, main pressing tongue cylinder 54, main pressing tongue plate 55. Specific embodiments

[0033] In order to make the technical means, creative features, achieved purposes and effects realized by the present utility model easy to understand, the present utility model will be further described below with reference to specific illustrations.

[0034] See Figures 1 to 2 , the figure shows a packaging box folding edge device of a folding box machine, a conveying assembly for horizontally conveying one by one packaging boxes at uniform intervals; a transfer assembly 30 for simultaneously transferring several packaging box boards from back to front (from right to left) by one station and blocking the forward movement of the packaging boxes during the folding edge process; a side folding edge assembly 40 for folding the left and right pairs of side ears of each packaging box inward; a main folding edge assembly 50 for folding the main ears of each packaging box, and then the main tongue is clamped inside the packaging box; a frame 10, the conveying assembly is horizontally arranged on the frame 10, the transfer assembly 30 is horizontally arranged below the conveying assembly, and the side folding edge assembly 40 and the main folding edge assembly 50 are sequentially arranged on one side of the conveying assembly.

[0035] The conveying assembly of the present invention transports a square packaging box whose internal four corners have been expanded by an expanding device, and the transfer assembly 30 transfers the packaging boxes at several stations to the next station; the side folding edge assembly 40 sequentially folds the left and right folding edges 12 of each packaging box inward, and the main folding edge assembly 50 sequentially pushes the main folding edges 13 of each packaging box, and the main tongue is clamped inside the packaging box; one component is designed for each process, with a compact structure and more time-saving and convenient pipeline operation.

[0036] The conveying assembly includes a conveying motor, at least one driving roller, at least one driven roller, and at least one conveyor belt 21. A synchronous transmission is adopted between the output gear of the conveying motor and the driving roller, and the conveyor belt 21 is sleeved on the driving roller and the driven roller; the output shaft of the conveying motor drives the output gear, the driving roller, the conveyor belt 21, and the driven roller in sequence, and the conveyor belt 21 transports one by one packaging box boards from right to left.

[0037] See Figure 3The transfer assembly 30 includes at least two clamping frames, a transverse cylinder 33, and at least one longitudinal cylinder 34. The cylinder barrel of the longitudinal cylinder 34 is longitudinally arranged on the frame 10, and the cylinder barrel of the transverse cylinder 33 is transversely arranged at the piston rod end of the longitudinal cylinder 34; each clamping frame clamps a packaging box respectively, the transverse cylinder 33 is used to drive the clamping frame and the connected packaging box to move in the horizontal direction, and the longitudinal cylinder 34 is used to drive the clamping frame and the packaging box to move in the vertical direction.

[0038] Specifically, the clamping frame includes a bottom plate 31 and at least four clamping plates 32. The bottom plate 31 is horizontally arranged at the bottom of the conveyor belt 21. The bottom ends of the four clamping plates 32 are vertically fixed to the four corners of the bottom plate 31. There are six clamping frames, which are connected as a whole. A pair of longitudinal cylinders 34 are arranged, and the cylinder barrels of the pair of longitudinal cylinders 34 are fixedly installed on the frame 10. The piston rods of the transverse cylinders 33 are fixedly installed on the bottom surface of the bottom plate 31. A transfer mounting plate is arranged at the top ends of the piston rods of the pair of longitudinal cylinders 34, and the cylinder barrels of the transverse cylinders 33 are fixedly installed on the transfer mounting plate of the piston rods of the longitudinal cylinders 34.

[0039] Working principle: the initial state of the transfer component 30 is that the transverse cylinder 33 and the longitudinal cylinder 34 are both in a retracted state. First, the transverse cylinder 33 extends horizontally to the right, and the longitudinal cylinder 34 extends vertically upward, and the clamping frame clamps the bottom and left and right sides of the packaging box; then the transverse cylinder 33 is retracted horizontally to the left, and the clamping frame clamps the packaging box and moves one station to the left following the conveyor belt; finally, the longitudinal cylinder 34 is retracted vertically downward, and the clamping frame releases the packaging box.

[0040] The clamping frame of the above transfer assembly 30 just clamps the packaging box, plays a role of temporary positioning, and blocks the packaging box cardboard from moving forward when the two folding processes are working, so as to facilitate the smooth progress of the side folding process and the main folding process 13; the pause time can be manually adjusted according to the folding time. Preferably, every two clamping plates 32 are combined into an H shape, and the bottom plate 31 of the clamping frame is at a certain distance from the bottom of the conveyor belt 21; the transfer assembly 30 can also lift the packaging box upward, so that there is a gap between the lower surface of the packaging box cardboard and the upper surface of the conveyor belt 21, to prevent friction between the two surfaces, thereby damaging the back of the packaging box.

[0041] See also Figure 4 The side folding assembly 40 includes a side folding bracket 41, a side lateral shift cylinder 42, a side folding cylinder 43, and a side folding plate 44. The side folding bracket 41 is longitudinally arranged on the frame 10, the cylinder barrel of the side lateral shift cylinder 42 is horizontally and laterally installed on the side folding bracket 41, the cylinder barrel end of the side folding cylinder 43 is horizontally and vertically installed on the piston rod end of the side lateral shift cylinder 42, and one end of the side folding plate 44 is obliquely docked with the piston rod end of the side folding cylinder 43.

[0042] Specifically, the inclination angle between the side folding edge plate 44 and the box opening of the packaging box is 0-45 degrees; preferably, the inclination angle between the side folding edge plate 44 and the box opening of the packaging box is 10 degrees, which is convenient for folding the left folding edge 11 and the right folding edge 12 successively; a small inclination angle can prevent the side folding edge plate 44 from prying open the right folding edge 12 of the packaging box when converting from left to right, resulting in the failure of folding the packaging box.

[0043] Working principle: In the initial state of the side folding edge assembly 40, the side transverse movement cylinder 42 and the side folding edge cylinder 43 are both in a retracted state. First, the piston rod of the side folding edge cylinder 43 of the side folding edge assembly 40 extends, and the side folding edge plate 44 blocks the left folding edge at the top or bottom of the packaging box. The piston rod of the side transverse movement cylinder 42 continuously extends at a constant speed, driving the side folding edge cylinder 43 and the side folding edge plate 44 to move to the right together, and the left folding edge of the packaging box is folded. Then, while the piston rod of the side transverse movement cylinder 42 continuously extends at a constant speed, the piston rod of the side folding edge cylinder 43 retracts. After bypassing the right folding edge of the packaging box, the piston rod of the side folding edge cylinder 43 extends and blocks the right folding edge of the packaging box. Finally, the piston rod of the side transverse movement cylinder 42 retracts, driving the side folding edge cylinder 43 and the side folding edge plate 44 to move to the left together, and the right folding edge of the packaging box is folded, and the piston rod of the side folding edge cylinder 43 retracts. The piston rod of the side transverse movement cylinder 42 of the above side folding edge assembly 40 extends or retracts at a constant speed during work, and at the same time, the side folding edge cylinder 43 extends or retracts appropriately, so as to realize that only one side folding edge cylinder 43 can fold the left and right folding edges 12 of the packaging box; the overall structure of the side folding edge assembly 40 is compact, saving floor space and not hindering the transportation of the packaging box.

[0044] See Figure 5 , the main folding edge assembly 50 includes a main folding edge bracket 51, a main pushing edge cylinder 52, a main pushing edge plate 53, a main pressing tongue cylinder 54, and a main pressing tongue plate 55. The main folding edge bracket 51 is longitudinally arranged on the frame 10; the cylinder parts of the main pushing edge cylinder 52 and the main pressing tongue cylinder 54 are installed in parallel on the main folding edge bracket 51, and the main pushing edge cylinder 52 and the main pressing tongue cylinder 54 are respectively perpendicular to the box opening end face of the packaging box from bottom to top; the piston rod of the main pushing edge cylinder 52 is used to push the main folding edge 13 of the packaging box, and the piston rod of the main pressing tongue cylinder 54 is used to press the main tongue of the packaging box into the interior of the packaging box.

[0045] Specifically, the longitudinal section of the main pushing edge plate 53 is in an inverted U shape or a T shape, and the front end of the main pushing edge plate 53 contacts the outer surface of the main folding edge 13 of the packaging box; the longitudinal section of the main pressing tongue plate 55 is in an inverted L shape, and the L-shaped front end face of the main pressing tongue plate 55 contacts the outer end face of the main pressing tongue of the packaging box.

[0046] The packaging box cardboard includes a front cardboard, a back cardboard, a left cardboard, a right cardboard, and a pair of left folded edges 11, a right folded edge 12, a main folded edge 13, and a main pressing tongue respectively arranged at the top and bottom of the packaging box; the packaging box cardboard is flat at first, and becomes a square box body after being sucked open by a propping device, and the folding device folds the folded edge at one end of the packaging box, and the main folded edge 13 and the main tongue at one end of the packaging box are sequentially connected to the lower end of the box opening of the packaging box from bottom to top.

[0047] The basic working principle of the utility model is:

[0048] The packaging box is tilted and placed on the conveyor belt 21, and the height direction of the packaging bag is consistent with the width direction of the conveyor belt 21. The box folding machine is used to fold the top or bottom edges of the packaging box in sequence, and the assembly line is transported to the manual workstation, where the product is manually placed in the packaging box and the other end of the packaging box is folded.

[0049] Specifically, the transfer component 30 transfers the packaging box of the previous workstation to the next workstation; when the clamping frame of the transfer component 30 clamps the packaging box, the side folding component 40 folds the left folding edge 11 and the right folding edge 12 of the next packaging box, and the main folding component 50 folds the main folding edge 13 and the main pressure tongue of the previous packaging box.

[0050] In another embodiment of the present invention, the conveying component may not be provided at the transfer component 30 , and the packaging bag can be conveyed only by the transfer component 30 .

[0051] The above shows and describes the basic principle, main features and advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments. The above embodiments and descriptions are only for explaining the principle of the utility model. The utility model may have various changes and improvements without departing from the spirit and scope of the utility model. These changes and improvements fall within the scope of the utility model to be protected. The scope of protection claimed by the utility model is defined by the attached claims and their equivalents.

Claims

1. A folding edge device for a packaging box of a folding box machine, characterized in that, Including: A conveying component for horizontally conveying packaging boxes at uniform intervals; A transfer component for simultaneously transferring several cardboard boxes of the packaging boxes one station forward from back to front and blocking the forward movement of the packaging boxes during the hemming process; A side hemming component for folding inwards a pair of left and right side ears of each packaging box; A main hemming component for folding the main ears of each packaging box, and thus the main tongue is clamped inside the packaging box; A frame, wherein the conveying component is horizontally arranged on the frame, the transfer component is horizontally arranged below the conveying component, and the side hemming component and the main hemming component are sequentially arranged on one side of the conveying component.

2. The packaging box edge folding device of a folding box machine according to claim 1, characterized in that, The transfer component includes at least two clamping frames, a transverse translation cylinder, and at least one longitudinal translation cylinder. The cylinder part of the longitudinal translation cylinder is longitudinally arranged on the frame, and the cylinder part of the transverse translation cylinder is horizontally arranged at the piston rod end of the longitudinal translation cylinder; each clamping frame clamps a packaging box respectively, the transverse translation cylinder is used for driving the clamping frame and the connected packaging box to move horizontally, and the longitudinal translation cylinder is used for driving the clamping frame and the connected packaging box to move vertically.

3. The box folding edge device of a box folding machine according to claim 2, characterized in that, The side hemming component includes a side hemming bracket, a side transverse translation cylinder, a side hemming cylinder, and a side hemming plate. The side hemming bracket is longitudinally arranged on the frame, the cylinder part of the side transverse translation cylinder is horizontally and transversely installed on the side hemming bracket, the cylinder end of the side hemming cylinder is horizontally and vertically installed at the piston rod end of the side transverse translation cylinder, and one end of the side hemming plate is obliquely butted at the piston rod end of the side hemming cylinder.

4. The box folding edge device of a box folding machine according to claim 3, wherein, The main hemming component includes a main hemming bracket, a main pushing edge cylinder, a main pushing edge plate, a main tongue pressing cylinder, and a main tongue pressing plate. The main hemming bracket is longitudinally arranged on the frame; the cylinder parts of the main pushing edge cylinder and the main tongue pressing cylinder are horizontally and parallelly installed on the main hemming bracket, and the main pushing edge cylinder and the main tongue pressing cylinder are respectively perpendicular to the box mouth end face of the packaging box from bottom to top; the piston rod of the main pushing edge cylinder is used for pushing the main hem of the packaging box, and the piston rod of the main tongue pressing cylinder is used for pressing the main tongue of the packaging box into the interior of the packaging box.

5. The folding edge device of the packaging box of a folding box machine according to claim 4, characterized in that, The packaging box includes a front cardboard, a rear cardboard, a left cardboard, a right cardboard, and a pair of left hems, right hems, main hems, and main tongue pressings respectively arranged at the top and bottom of the packaging box; the hemming device folds the hems at one end of the packaging box.

6. The folding edge device for the packaging box of a folding box machine according to claim 2, characterized in that, The clamping frame includes a bottom plate and at least 4 clamping plates. The bottom plate is horizontally arranged at the bottom of the conveyor belt, and the bottom ends of the clamping plates are vertically fixed at the four corners of the bottom plate.

7. The folding edge device of the packaging box of a folding box machine according to claim 3, characterized in that, The inclination angle between the side hemming plate and the box mouth of the packaging box is 0 - 45 degrees.

8. The folding edge device for the packaging box of a folding box machine according to claim 4, characterized in that, The longitudinal section of the main pushing edge plate is in an inverted U shape; the longitudinal section of the main tongue pressing plate is in an inverted L shape.

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