CN113199810B

CN113199810B - Continuous non-stop box folding machine and box folding method

Info

Publication number: CN113199810B
Application number: CN202110549855.XA
Authority: CN
Inventors: 鲍刘
Original assignee: Shanghai Zidan Packaging Technology Co ltd; Shanghai Zidan Food Packaging Printing Co ltd
Current assignee: Shanghai Zidan Packaging Technology Co ltd; Shanghai Zidan Food Packaging Printing Co ltd
Priority date: 2021-05-20
Filing date: 2021-05-20
Publication date: 2022-10-28
Anticipated expiration: 2041-05-20
Also published as: CN113199810A

Abstract

The invention relates to a continuous non-stop box folding machine, belonging to the technical field of paper box manufacturing and comprising: the device comprises a paper feeding device, a front glue spraying device, a side edge turning device, a pressing device, a side edge standing device, a rear glue spraying device, a lug folding device and a front and rear edge folding device; the front and rear edge folding devices comprise a front edge folding mechanism for guiding the front edge to be folded upwards and a rear edge folding mechanism for guiding the rear edge to be folded upwards. The carton folding machine provided by the invention has the advantages that the carton is not stopped in the production process, the whole carton folding machine can be conveyed by a motor, the operation is stable, the possibility of scratching the carton body in the carton folding process is reduced, and the reliability of the product quality is ensured. The invention also relates to a box folding method by using the continuous non-stop box folding machine, which comprises a paper feeding step; spraying glue; standing; ear folding; and folding the edges of the front and the back. The box folding method has the advantages that the whole production process is continuously carried out, and the production efficiency is high.

Description

Continuous non-stop box folding machine and box folding method

Technical Field

The invention relates to a box folding machine, in particular to a continuous non-stop box folding machine; the invention also relates to a box folding method by using the continuous non-stop box folding machine, belonging to the technical field of paper box manufacturing.

Background

The paper box is a paper product packaging structure and is the largest type used in packaging industrial products. Cartons are the most important form of transport packaging, and cartons are widely used as sales packaging for various products such as food, medicine, electronics, and the like. With the change of transportation mode and the revolution of sales mode, the style of carton, carton is becoming diversified day by day. The paper box is a three-dimensional shape and is composed of a polyhedral body formed by moving, stacking, folding and enclosing a plurality of formed surfaces. The corresponding faces need to be folded or connected together during the production process, and the corresponding carton production equipment is more and more complex to realize the increasingly complex automatic production of the cartons.

At present, most of domestic product packaging box assembly line workers adopt manual box folding or mechanical box folding. This kind of mode inefficiency of manual work box folding and human cost are high, and the box needs be rolled over through mechanical drive's mode to the machinery box folding, and the carton needs intermittent type nature to pause in the production process and supplies the machinery to roll over the box operation, also has the problem that production efficiency is not high, for this reason, designs an efficient box machine that rolls over and has important meaning.

Disclosure of Invention

Therefore, the invention provides a continuous non-stop box folding machine, which can fold the front and the back of a box body in motion to a standing state through a side standing device and a front and back edge folding device, thereby improving the production efficiency. In order to achieve the above purpose, the invention provides the following technical scheme:

the utility model provides a do not stop and roll over box machine, this do not stop and roll over box machine and be used for the box of the book box shaping of box body in succession, the box body includes box bottom, side, preceding and back, and this do not stop and roll over box machine includes in succession: the device comprises a paper feeding device, a front glue spraying device, a side edge turning device, a pressing device, a side edge standing device, a rear glue spraying device, a lug folding device and a front and rear edge folding device; the front and rear edge folding devices comprise a front edge folding mechanism for guiding the front edge to be folded upwards and a rear edge folding mechanism for guiding the rear edge to be folded upwards.

As an improvement of the above solution, the upright side device includes two side guiding rods, the side guiding rods incline from the side of the box body to the box bottom of the box body and gradually increase in height, and are guided by the side guiding rods to be folded upwards to an upright state when the side lies down and passes through.

As an improvement of the above scheme, the front and rear edge folding device further comprises a chain conveying mechanism; the front edge folding mechanism comprises a front edge folding mounting seat fixedly connected with the chain conveying mechanism, a front edge folding rotor is connected to the upper shaft of the front edge folding mounting seat, and one end of the front edge folding rotor extends outwards to form a front pushing stop rod which guides the front edge to be folded upwards.

As an improvement of the above scheme, the front and rear edge folding device further comprises a guide rail for restraining the front edge folding mechanism, the guide rail is provided with a guide surface, and the guide surface is a smoothly-transited arc-shaped rail surface; the rotating body is provided with a guide wheel which is in contact fit with the guide surface, and a rotating body rotating shaft is arranged between the front folded edge mounting seat and the rotating body; in the advancing process of the front flanging mechanism, the guide wheel of the front flanging rotator is guided by the guide surface to further drive the front push stop rod to rotate upwards around the rotating shaft of the rotator, and the front push stop rod guides the front edge to be turned upwards to be in a standing state in the rotating process.

As an improvement of the scheme, an arc-shaped guide hole is formed in the front flanging installation seat, a limiting slide block extending into the arc-shaped guide hole is arranged on the front flanging rotor, and the rotation angle of the front flanging rotor around the rotor shaft is limited by the movement range of the limiting slide block in the arc-shaped guide hole; an elastic reset mechanism is arranged between the front push stop rod and the front folding edge mounting seat.

As an improvement of the above scheme, the chain conveying mechanism comprises a chain wheel and a chain, the rear flanging mechanism comprises a rear flanging installation seat fixedly connected with the chain, a rear flanging body is connected to the rear flanging installation seat, and the rear flanging body gradually contacts with the box body in the moving process of the chain and guides the rear edge to be turned upwards to a standing state; the front edge and the back edge respectively extend outwards to form a front edge flanging and a back edge flanging; one end of the rear folding edge body, which is far away from the rear folding edge mounting seat, extends outwards to form a folding edge flanging which supports the rear folding edge; the front and rear flanging devices also comprise a pressing strip, and the pressing strip is provided with a tilting section for guiding the front flanging and the rear flanging to be turned over towards the direction of the box bottom.

As an improvement of the scheme, the front edge and the rear edge of each side edge are respectively provided with a side lug, the positions of the front edge and the rear edge, which correspond to the positions of the connection side lugs, are respectively provided with a front side lug connection region and a rear side lug connection region, and the front edge and the rear edge are provided with a front side glue spraying region and a rear side glue spraying region for spraying glue by the rear glue spraying device; the ear folding device comprises a spiral shifting piece, when the spiral shifting piece rotates, the side ears are pushed to turn over towards the side where the box bottom is located, and the front side and the rear side after glue spraying are turned over and are adhered to the turned side ears in an overlapping mode.

As an improvement of the above scheme, the side edge extends outwards to form a side edge flanging, and a side edge glue spraying area for spraying glue by the front glue spraying device is arranged on the side edge flanging; the side flanging device comprises a first guide rod and a second guide rod, when the side flanging sprayed with glue is laid horizontally and passes through, the side flanging is guided by the first guide rod to be turned upwards to be in a standing state, and then the standing side flanging is guided by the second guide rod to be turned downwards and overlapped and bonded with the side.

The continuous non-stop box folding machine provided by the invention can fold the front side and the rear side of the box body in the continuous advancing process of the box body, the paper box is not stopped in the production process, the whole box folding machine can be conveyed by a motor, the operation is stable, the vertical side edge device and the front and rear edge folding devices can effectively support the box body, the possibility of scratching the box body in the box folding process is reduced, and the reliability of the product quality is ensured.

The invention also provides a box folding method using the continuous non-stop box folding machine, which comprises the following steps:

a paper feeding step: stacking a plurality of single-sheet box bodies between a paper box side baffle and a paper box front baffle of a paper feeding device, and sequentially conveying the single-sheet box bodies through a paper feeding gap by a paper feeding conveying mechanism;

and (3) glue spraying: spraying glue on the front glue spraying area and the rear glue spraying area on the front side and the rear side through a rear glue spraying device;

and (3) edging: the side edge of the box body is turned over to be in a standing state through the side edge standing device;

ear folding step: turning over the side ears of the box body to the side where the box bottom is located through the ear folding devices;

folding the front and the back edges: the front edge and the rear edge are turned upwards through the front and rear edge folding devices, and the front edge and the rear edge after glue spraying are turned and erected and then overlapped and adhered with the turned side ears.

In the step of spraying glue, glue is sprayed to the side glue spraying area on the side flanging by the front glue spraying device, then the side flanging after spraying glue is turned over to be overlapped and adhered with the side by the side flanging device, and the overlapped side flanging sides are pressed together by the pressing device.

According to the box folding method, the continuous production of box folding is carried out on the box body in a single sheet form through the paper feeding step, the glue spraying step, the edge erecting step, the lug folding step and the front and back edge folding step, the front edge and the back edge of the box body after glue spraying are overlapped and adhered with the side lugs of the side edges to form the box body in a three-dimensional form, the whole production process is carried out continuously, and the production efficiency is higher compared with the traditional manual box folding method and the intermittent mechanical driving box folding method.

Drawings

FIG. 1 is a schematic view of a continuous non-stop box folding machine according to the present invention;

FIG. 2 is a left side view of a continuous non-stop box folding machine according to the present invention;

FIG. 3 is a top view of a continuous non-stop box folding machine according to the present invention;

FIG. 4 isbase:Sub>A cross-sectional view taken along plane A-A of FIG. 3;

FIG. 5 is a perspective view of a continuous non-stop box folding machine of the present invention, viewed from the side of a paper feeding device;

FIG. 6 is a partial enlarged view of the area B in FIG. 5;

FIG. 7 is a schematic perspective view of a continuous non-stop box folding machine of the present invention viewed from the side of a front and rear edge folding device;

FIG. 8 is a schematic diagram of the cassette configuration for each step in a continuous non-stop cassette folding machine according to the present invention;

FIG. 9 is a schematic diagram of the position of the blowing and adsorbing device in the continuous box folding machine according to the present invention;

FIG. 10 is a schematic view of the front and rear edge folding devices of a continuous non-stop box folding machine according to the present invention;

FIG. 11 is a schematic view of the front folding mechanism in FIG. 10 after contacting the guide rail;

FIG. 12 is a perspective view of the front folding mechanism of the continuous non-stop box folding machine of the present invention, viewed from the side of the rotor;

FIG. 13 is a schematic perspective view of a front hemming mechanism of a continuous folding machine of the present invention viewed from the side of a front hemming mounting base;

FIG. 14 is a schematic view of a paper feeding device of a continuous non-stop box folding machine according to the present invention;

FIG. 15 is a schematic view of a cassette body of a continuous non-stop cassette folding machine of the present invention during the process of passing through a paper feeding device;

FIG. 16 is a schematic diagram of a box body of a continuous non-stop box folding machine after glue spraying;

FIG. 17 is a schematic view of a case of the continuous non-stop case folding machine of the present invention during the case passes through a pressing device;

FIG. 18 is a schematic view of a continuous non-stop box folding machine of the present invention, wherein the box body passes through a side erecting device;

FIG. 19 is a schematic view of a box body passing through a ear folding device in a continuous non-stop box folding machine according to the present invention;

FIG. 20 is a schematic view of the continuous non-stop box folding machine of the present invention showing the box body passing through the front folding mechanism;

FIG. 21 is a schematic view of the continuous non-stop box folding machine of the present invention showing the box body passing through the rear folding mechanism;

fig. 22 is a schematic diagram showing the shape of the box body before the box body is advanced to the pressing strip in the continuous non-stop box folding machine.

In the figure: 1-box body, 2-box bottom, 3-side, 3 a-side flanging, 3 b-side lug, 3 c-side glue spraying area, 4-front edge, 4 a-front edge flanging, 4 b-side lug connecting area, 4 c-front glue spraying area, 5-rear edge, 5 a-rear edge flanging, 5 b-side lug connecting area, 5 c-rear glue spraying area, 10-paper feeding device, 11-paper feeding gap, 12-paper feeding conveying mechanism, 13-paper box side baffle, 14-paper box front baffle, 20-front glue spraying device, 21-rear glue spraying device, 22-glue spraying conveying mechanism, 30-side edge overturning device, 31-first guide rod, 32-second guide rod, 33-side edge overturning conveying mechanism, 40-pressing device and 41-rolling wheel, 42-a pressing conveying mechanism, 50-a vertical side device, 51-a side guide rod, 52-a side guide rod bracket, 53-an auxiliary pressure wheel, 54-a vertical side conveying mechanism, 60-a lug folding device, 61-a spiral shifting piece, 62-a lug folding driving motor, 63-a lug folding driving belt, 64-a shifting piece rotating shaft, 70-a folding device, 71-a front folding mechanism, 72-a rear folding mechanism, 73-a chain conveying mechanism, 74-a guide rail, 75-a pressing strip, 80-a blower, 81-a blowing pipe, 82-a belt conveying frame, 83-a suction belt, 711-a front folding mounting seat, 712-a front folding rotating body, 713-a rotating body rotating shaft, 715-a limiting sliding block and 716-an elastic resetting mechanism, 721-rear folding edge mounting seat, 722-rear folding edge body, 723-folding edge, 731-chain wheel, 732-chain, 741-first rail surface, 742-second rail surface, 743-guide surface, 751-tilting section, 752-horizontal guide section, 7111-first front folding edge mounting hole, 7112-second front folding edge mounting hole, 7113-arc guide hole, 7121-front pushing rod, 7122-guide wheel central shaft and 7123-guide wheel.

Detailed Description

The present invention is described in terms of particular embodiments, other advantages and features of the invention will become apparent to those skilled in the art from the following disclosure, and it is to be understood that the described embodiments are merely exemplary of the invention and that it is not intended to limit the invention to the particular embodiments disclosed. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

In the present invention, the terms "upper", "lower", "front" and "rear" are used for descriptive purposes only and are not intended to limit the scope of the present invention, and the relative relationship between the terms and the terms may be changed or adjusted without substantial technical change.

In the description of the embodiments that follow, unless explicitly stated or limited otherwise, the terms "disposed," "connected," and the like are to be construed broadly and include, for example, "connected" that may be either fixedly connected or detachably connected, or integrally formed; may be a mechanical, plumbing, or electrical connection, may be indirectly connected through intervening media, may be internal to two elements, or may be in an interactive relationship with two elements, unless expressly defined otherwise. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations. Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature.

The invention firstly provides a continuous non-stop box folding machine, which is used for forming a box folding of a box body 1, as shown in figure 15, the box body 1 comprises a box bottom 2, side edges 3, a front edge 4 and a rear edge 5, the side edges 3, the front edge 4 and the rear edge 5 respectively extend outwards to form side edge turned edges 3a, the front edge turned edges 4a and the rear edge turned edges 5a, the front edge and the rear edge of each side edge 3 are respectively provided with side lugs 3b, and the front edge 4 and the rear edge 5 are respectively provided with a front edge side lug connecting area 4b and a rear edge side lug connecting area 5b at positions corresponding to the side lugs 3 b.

As shown in fig. 1, 2, 3 and 9, the continuous non-stop box folding machine sequentially comprises the following components in the advancing direction of the box body 1: the paper feeding device 10, the front glue spraying device 20, the side edge folding device 30, the pressing device 40, the side edge standing device 50, the rear glue spraying device 21, the ear folding device 60, the front and rear edge folding device 70 and the air blowing adsorption device. The paper feeder 10 is used for feeding a plurality of single-sheet cases 1 to a subsequent process at a frequency of one sheet at a time; the front glue spraying device 20 and the rear glue spraying device 21 are used for spraying glue on corresponding positions of the box body 1; the side edge turning device 30 is used for turning the side edge turning edge 3a of the box body 1 to be overlapped with the side edge 3; the pressing device 40 is used for pressing the overlapped side flanging 3a and the side 3; the vertical side edge device 50 is used for turning and erecting the overlapped and pressed side edge 3 and the side edge flanging 3 a; the ear folding device 60 is used for folding the side ears 3b on the side edges 3 into the box body; the front and rear edge folding devices 70 are used for folding and erecting the front edge 4 and the rear edge 5 of the box body 1; the blowing and absorbing device is used for keeping the box body 1 stable during the folding process of the front edge 4 of the box body 1 by the front and back folding devices 70.

As shown in fig. 14, the paper feeding device 10 includes a paper feeding mechanism 12, a paper cassette side baffle 13 and a paper cassette front baffle 14 are disposed above the paper feeding mechanism 12, an area for stacking a plurality of single-sheet type box bodies 1 is defined between the paper cassette side baffle 13 and the paper cassette front baffle 14, and a paper feeding gap 11 for the single-sheet type box bodies 1 to pass through is formed between the paper cassette front baffle 14 and the paper feeding mechanism 12. In this embodiment, a plurality of single-sheet type cases 1 are stacked between a case side baffle 13 and a case front baffle 14, and the lowest case 1 can be taken out from the paper feeding gap 11 by friction when the paper feeding mechanism 12 rotates, and since the paper feeding gap 11 can only accommodate the single-sheet type cases 1, the paper feeding device 10 can feed materials at a frequency of feeding one case 1 at a time.

As shown in fig. 16, the side flange 3a has a side glue spraying area 3c for spraying glue by the front glue spraying device 20. As shown in fig. 4, this continuous non-stop box folding machine is provided with before glue-spraying device 20 after adsorption paper feeding device 10, and the theory of operation of glue-spraying device 20 and back glue-spraying device 21 is similar before, and glue-spraying device 20 spouts gluey district 3c to the side of side turn-ups 3a mainly and spouts gluey, and the side turn-ups 3a that spout after gluey overturns and overlaps the bonding with side 3 through turning over side device 30, and the structural design's that this kind of side turn-ups 3a overlaps with side 3 effect has two: on the one hand, the firmness of the product structure after the box body 1 is folded and formed can be increased, and on the other hand, the attractive degree of the appearance of the side edge 3 can be increased.

As shown in fig. 5 and 8, the side flanging device 30 includes a first guide bar 31 and a second guide bar 32, and when the side flanging 3a after glue spraying is laid down, the side flanging is guided by the first guide bar 31 to be folded upwards to be in a standing state, and then the standing side flanging 3a is guided by the second guide bar 32 to be folded downwards and overlapped and bonded with the side edge 3. The first guide rod 31 and the second guide rod 32 are connected end to end and are arranged obliquely, wherein the shaft extension direction of the first guide rod 31 is inclined from one side of the side flange 3a to one side of the side 3 and the height of the first guide rod is gradually increased, so that the side flange 3a is guided by the first guide rod 31 to be folded upwards to be in a standing state when passing through; the shaft extending direction of the second guide bar 32 is also inclined from the side where the side flange 3a is located to the side where the side 3 is located, but the inclination angle of the second guide bar 32 is reduced relative to the first guide bar 31, and the shaft extending direction of the second guide bar 32 is gradually reduced in height when inclined, so that the standing side flange 3a is guided by the second guide bar 32 to be turned over downwards and overlapped with the side 3, and since the front glue spraying device 20 sprays glue on the side glue spraying area 3c on the side flange 3a, the overlapped side flange 3a and the side 3 can be bonded together.

Further, the side flanges 3a and the side edges 3 can be compacted by the pressing device 40 after being overlapped, so that the firmness of the bonding between the side flanges 3a and the side edges 3 is improved. The stitching device 40 comprises rolling wheels 41 for flattening the overlapping side flanges 3a and sides 3, two rolling wheels 41 being provided, one rolling wheel 41 for each side 3, depending on the number of sides 3.

As shown in fig. 6, the continuous box folding machine further comprises a vertical side edge device 50, the vertical side edge device 50 is used for folding the side edge 3 upwards, the vertical side edge device 50 comprises two side edge guide rods 51 which are arranged obliquely to the advancing direction of the box body 1, and when the side edge 3 is laid down and passes through, the side edge guide rods 51 guide the side edge 3 to be folded upwards to be in a vertical state. The upright side device 50 is used for turning up the two sides 3 of the box body 1 to an upright state, and the upright side device 50 includes an upright side conveying mechanism 54, two side guide rods 51, and a side guide rod bracket 52 for fixing the side guide rods 51. In order to ensure that the box bottom 2 of the box body 1 is kept flat during the process of turning the side edge 3 upwards, an auxiliary pressure roller 53 can be arranged at a position between the two side edge guide rods 51 above the vertical side edge conveying mechanism 54, the auxiliary pressure roller 53 is fixed through a side edge guide rod support 52, the box bottom 2 during the advancing process is restricted on the vertical side edge conveying mechanism 54 through the auxiliary pressure roller 53, and the box bottom 2 is prevented from deflecting or deforming during the process of turning the side edge 3 by the two side edge guide rods 51. The side guide rod 51 is arranged obliquely to the advancing direction of the box body 1, the side guide rod 51 is inclined from the side of the side 3 of the box body 1 to the side of the box bottom 2 of the box body 1, the height of the side guide rod 51 gradually increases, and when the box body 1 passes through, the side 3 slides along the rod body of the side guide rod 51 and turns upwards to be in a standing state.

As shown in fig. 7, the continuous non-stop box folding machine further comprises a rear glue spraying device 21; as shown in fig. 16, the front edge 4 and the rear edge 5 are provided with a front edge glue spraying area 4c and a rear edge glue spraying area 5c for spraying glue by the rear glue spraying device 21, and the front edge 4 and the rear edge 5 after glue spraying are folded and adhered to the turned side lugs 3b in an overlapping mode. The working principle of the post-glue-spraying device 21 is as follows: when the box body 1 runs to the position of the rear glue-spraying device 21, the glue-spraying heads of the rear glue-spraying device 21 are controlled by the induction elements to spray proper glue amount to the positions of the front glue-spraying area 4c and the rear glue-spraying area 5c in a spot spraying or line spraying mode.

As shown in fig. 6, the continuous non-stop box folding machine further includes a lug folding device 60, and the lug folding device 60 includes a spiral shifting piece 61 and a lug folding driving motor 62 for driving the spiral shifting piece 61 to rotate, and when the spiral shifting piece 61 rotates, the side lug 3b is pushed to turn over toward the side of the box bottom 2. Since the side ears 3b at the edge of the side edge 3 are mostly wave-shaped or zigzag-shaped, when the box body 1 continuously passes through, the side ears 3b can be turned over to the side of the box bottom 2 by the rotation of the spiral poking piece 61. The ear folding devices 60 can be adaptively arranged according to the number of the upper side ears 3b of each box body 1, for example, if the number of the upper side ears 3b of each box body 1 is four, four sets of ear folding devices 60 can be arranged, one set of ear folding device 60 is arranged at each position of the side ears 3b, and the rotating direction of the helical dialing piece 61 is adjusted according to the overturning direction of the side ears 3b at each position. Since the box body 1 is continuously passed through, in order to avoid interference with the moving track of the side edge 3 of the advancing box body 1 when the spiral shifting piece 61 rotates, the spiral shifting piece 61 can be designed into a fan-shaped spiral blade shape, so that the spiral shifting piece 61 contacts with the side ear 3b and turns over the side ear 3b only when the side ear 3b of the side edge 3 passes through in a rotation period, and the spiral shifting piece 61 rotates to other positions when the side edge 3 passes through. In this preferred scheme, book ear driving motor 62 has set gradually book ear driving belt 63, plectrum axis of rotation 64 and spiral plectrum 61 according to the transmission direction, and book ear driving motor 62 drives book ear driving belt 63 through the drive shaft in the driving motor, and book ear driving belt 63 drives spiral plectrum 61 and rotates, and spiral plectrum 61 is fixed to be set up on plectrum axis of rotation 64.

As shown in fig. 12 and 13, the continuous non-stop box folding machine includes a front and rear edge folding device 70, the front and rear edge folding device 70 includes a front edge folding mechanism 71 for guiding the front edge 4 to turn upward, a rear edge folding mechanism 72 for guiding the rear edge 5 to turn upward, the front and rear edge folding device 70 further includes a chain conveying mechanism 73 for fixing the front edge folding mechanism 71 and the rear edge folding mechanism 72, the front edge folding mechanism 71 includes a front edge folding mounting base 711 fixedly connected with the chain conveying mechanism 73, a front edge folding rotating body 712 is connected to the front edge folding mounting base 711 through a rotating shaft, and one end of the front edge folding rotating body 712 extends outward to form a front pushing stopper 7121 for guiding the front edge 4 to turn upward. The chain conveying mechanism 73 comprises a chain wheel 731 and a chain 732, two front folding edge mounting holes, namely a first front folding edge mounting hole 7111 and a second front folding edge mounting hole 7112, are formed in the front folding edge mounting seat 711, and the front folding edge mounting seat 711 is fixedly connected to the chain 732 of the chain conveying mechanism 73 through bolts mounted in the first front folding edge mounting hole 7111 and the second front folding edge mounting hole 7112. The front edge-folding mounting seat 711 and the front edge-folding rotating body 712 can be rotatably connected through a rotating body rotating shaft 713, and the front push stop rod 7121 rotates along with the front edge-folding rotating body 712 and then pushes the front edge 4 of the box body 1 to turn upwards.

Further, as shown in fig. 10 and 11, the front-rear hemming device 70 further includes a guide rail 74, the guide rail 74 guides and restrains the front hemming mechanism 71, and the guide rail 74 has a first rail surface 741, a second rail surface 742, and a guide surface 743, wherein the first rail surface 741 is slightly higher than the second rail surface 742, and both rail surfaces of the first rail surface 741 and the second rail surface 742 are aligned with the movement plane of the case 1, and for example, when the case 1 moves horizontally, the rail surfaces of the first rail surface 741 and the second rail surface 742 are also horizontal. The first track surface 741 and the second track surface 742 are connected by a guide surface 743, and the guide surface 743 is a smoothly-transiting arc-shaped track surface; the rotor 712 is provided with a guide wheel 7123 in contact with the guide surface 743, and a rotor rotating shaft 713 is provided between the front hem mounting seat 711 and the rotor 712. During the advancing process of the front edge folding mechanism 71, the guide wheel 7123 of the front edge folding rotating body 712 firstly contacts with the first track surface 741 of the guide rail 74, and the first track surface 741 is consistent with the moving plane of the box body 1, so that the front edge folding rotating body 712 does not deflect; then the guide wheel 7123 of the front folding rotating body 712 contacts with the guide surface 743, the guide wheel 7123 of the front folding rotating body 712 is guided by the guide surface 743, so as to drive the front push stop rod 7121 to rotate upwards around the rotating body rotating shaft 713, and the front edge 4 is pushed to be folded upwards to be in a standing state in the rotating process of the front push stop rod 7121; when the guide wheel 7123 of the front hemming rotor 712 contacts the second track surface 742, the front hemming rotor 712 does not deflect, and the front hemming rotor 712 maintains the rotation angle just after separating from the guide surface 743. In the preferred embodiment, when the front hemming mechanism 71 is just in contact with the guide surface 743 of the guide rail 74, the guide wheel 7123 is firstly in contact with the guide surface 743, and the track plane of the guide surface 743 is in smooth transition, so that the guide wheel 7123 is deflected by the pressure of the guide surface 743 in the process of being in contact with the guide surface 743, the guide wheel 7123 drives the front hemming rotor 712 to rotate around the rotor rotating shaft 713 after rotating, the front push stop rod 7121 also rotates along with the rotation of the front hemming rotor 712, and the front push stop rod 7121 can push the front edge 4 of the box body 1 to be folded upwards to be in a standing state when rotating.

The guide wheel 7123 can be rotatably connected to the front hem rotator 712 through the guide wheel central shaft 7122, at this time, since the front hem installation seat 711 of the front hem mechanism 71 is fixedly connected to the chain 732, the movement track of the front hem mechanism 71 is consistent with the movement track of the chain 732, after the front hem mechanism 71 leaves the first rail surface 741 of the guide rail 74 and enters the guide surface 743, the guide wheel 7123 of the front hem mechanism 71 is constrained and guided by the guide surface 743, so that relative rotation between the front hem rotator 712 and the front hem installation seat 711 is forced, when the front hem mechanism 71 leaves the guide surface 743 of the guide rail 74 and enters the second rail surface 742, the front hem rotator 712 of the front hem mechanism 71 keeps the rotating state of the front hem mechanism 743 to continue to move forwards, the second rail surface 742 of the guide rail 74 is long, the second rail surface 742 can extend to the position where the guide surface 743 of the chain 732 on the upper layer passes through the sprocket 731 to be switched to the chain 732 on the lower layer, so that the front hem rotator 712 of the front hem mechanism 71 keeps the rotating state of the chain 732 on the upper layer just leaving the upper layer 732, and the front hem rotator 712 can be always held by the guide surface 732 of the chain rotator 1 and the chain 712. Of course, the guide wheels 7123 may be fixedly coupled to the front hem rotating body 712 via the guide wheel center shaft 7122, wherein the guide wheels 7123 are not relatively rotated when contacting the guide surfaces 743, but the position of the guide wheels 7123 is still guided and constrained by the guide surfaces 743, thereby causing relative rotation between the front hem rotating body 712 and the front hem mounting base 711.

Further, an arc-shaped guide hole 7113 is formed in the front edge folding mounting seat 711, a limiting slider 715 which extends into the arc-shaped guide hole 7113 is arranged on the front edge folding rotating body 712, and the rotating angle of the front edge folding rotating body 712 around the rotating body rotating shaft 713 is limited by the moving range of the limiting slider 715 in the arc-shaped guide hole 7113. The action of the arc-shaped guide hole 7113 in this preferred embodiment limits the rotation angle of the front folding rotary body 712 about the rotary body rotation axis 713, which is mainly related to the angle of the front edge 4 of the box body 1 folded upward.

For example, if it is desired to turn the front edge 4 counterclockwise by 90 ° in the direction of travel of the cartridge 1, the upper limit of the rotation angle of the front folding rotor 712 about the rotor rotation shaft 713 should also be 90 °, and preferably 90 ° is also provided between the front folding rotor 712 and the front push bar 7121. Specifically, when the front push bar 7121 does not run to the position of the guide rail 74, the lateral direction of the shaft of the front push bar 7121 is the same as the advancing direction of the box body 1, at this time, the front push bar 7121 can support the box body 1 to move forward, when the guide wheel 7123 contacts with the guide surface 743, the front folding rotator 712 starts to rotate, the lateral direction of the shaft of the front push bar 7121 starts to rotate counterclockwise along the advancing direction of the box body 1, when the limit slider 715 is limited by the arc-shaped guide hole 7113 and cannot move continuously, the front folding rotator 712 and the front push bar 7121 also stop rotating, and at this time, the front edge 4 of the box body 1 is folded upwards to a predetermined angle.

Further, in order to ensure that the front push rod 7121 can automatically return after the front edge 4 is folded upwards, an elastic return mechanism 716 may be disposed between the front push rod 7121 and the front folding edge mounting seat 711, and the elastic return mechanism 716 may be a spring, a tension spring, an elastic rope, or other components having a deformation recovery function. When the front push-stop lever 7121 is moved away from the guide rail 74, since the guide wheel 7123 is no longer limited by the guide surface 743, the limit slider 715 on the front hemming rotor 712 is also moved in the arc-shaped guide hole 7113 by the elastic restoring mechanism 716, thereby bringing the front hemming rotor 712 and the front push-stop lever 7121 of the front hemming mechanism 71 back to the original positions. After the chain 732 runs for one circle, the front folding mechanism 71 folds the front edge 4 of the continuously passing box 1 by repeating the above-mentioned operation. In practical production, a plurality of front folding mechanisms 71 can be arranged on the same chain 732 to improve folding efficiency.

In the above scheme, the rear folding mechanism 72 includes a rear folding mounting seat 721 fixedly connected to the chain 732, the rear folding mounting seat 721 is connected to the rear folding body 722, and the rear folding body 722 gradually contacts the box body 1 during the movement of the chain 732 and guides the rear edge 5 to be folded upwards to the standing state. The chain 732 moves under the driving of the chain wheel 731, when the box body 1 just moves to the position of the chain wheel 731 from the previous working procedure, the chain wheel 731 on the chain wheel 731 carries the rear edge folding mechanism 72 to just move to the lower part of the box body 1, the rear edge folding body 722 of the rear edge folding mechanism 72 gradually contacts with the rear edge 5 of the box body 1 along with the rotation of the chain wheel 731, because the rear edge folding body 722 is designed to be upright relative to the moving route of the chain 732, the rear edge folding body 722 can gradually push the rear edge 5 to be folded upwards to an upright state, and when the rear edge 5 of the box body 1 is completely erected, the rear edge folding body 722 and the rear edge 5 of the box body 1 can continuously keep the upright state and push the rear edge 5 of the box body 1 to enable the box body 1 to continuously move on the chain conveying mechanism 73. One end of the rear flanging body 722 far away from the rear flanging mounting base 721 extends outwards to form a flanging 723 supporting the rear flanging 5a, in the preferred scheme, the flanging 723 has the function that after the rear edge 5 of the box body 1 is completely erected, the rear flanging 5a extending outwards from the rear edge 5 is continuously turned over, and because an angle is formed between the flanging 723 and the rear flanging body 722, the rear flanging 5a can be continuously turned over towards the box bottom 2 until the angle between the rear flanging 5a and the rear edge 5 is consistent with the angle between the flanging 723 and the rear flanging body 722, and the rear flanging 5a of the box body 1 stops turning over.

In the above embodiment, the chain feeding mechanism 73 may include a plurality of sets of chains 732, and the front hemming mechanism 71 and the rear hemming mechanism 72 are respectively disposed on different chains 732. For example, a configuration may be adopted in which four sets of parallel chains 732 are provided, in which the front hemming mechanisms 71 are provided on the outer two sets of chains 732, and two sets of guide rails 74 are provided correspondingly, and are also provided at positions close to the outermost two sets of chains 732; the rear hemming mechanism 72 may be provided on the inner two sets of chains 732 so that the rear hemming mechanism 72 and the front hemming mechanism 71 may operate without interference with each other. The distance between the corresponding rear edge folding mechanism 72 and the corresponding front edge folding mechanism 71 is determined by the length of the box bottom 2, and when box bodies 1 with different sizes and specifications need to be folded, the distance between the rear edge folding mechanism 72 and the front edge folding mechanism 71 can be correspondingly adjusted.

Referring to fig. 11, the front-rear hemming device 70 further includes a bead 75, the bead 75 having a raised section 751 for guiding the front and

rear hems

4a and 5a to be folded toward the box bottom 2, and the bead 75 further having a horizontal guide section 752 for holding the front and

rear hems

4a and 5a in the box body 1. During the running process of the box body 1, the front edge 4 of the box body 1 is guided by the front edge folding mechanism 71 to be folded upwards, and the front edge folding edge 4a extending outwards from the front edge 4 also moves correspondingly along with the folding of the front edge 4. The length of the front push stop bar 7121 of the front folding mechanism 71 can be slightly longer than the width of the front edge 4, so that when the front push stop bar 7121 pushes the front edge 4 to turn over, the front edge 4a can also be turned over and erected, and at this time, the setting position of the pressing strip 75 needs to be kept away from the moving track of the front push stop bar 7121, so as to prevent the front push stop bar 7121 from colliding with the pressing strip 75 in the advancing process. Of course, the length of the front pushing-stop lever 7121 can be smaller than the width of the front edge 4, because the front pushing-stop lever 7121 can push the front edge 4 to turn over at the same time because most of the box body 1 materials have flexibility, the front edge 4 can drive the front edge turn-over 4a to turn over at the same time.

The tilting section 751 is of an oblique tilting structure, when the front folding mechanism 71 moves to the position of the pressing strip 75, the front edge flanging 4a of the box body 1 is stopped by the tilting section 751, and the front edge flanging 4a rotates towards the box bottom 2, so that the front edge flanging 4a is folded into the box body 1. Similarly, the rear flange 5a is guided by the flange 723, and the rear flange 5a continues to turn over to the side of the box bottom 2 by a certain angle before the rear flange 5a moves to the position of the tilting section 751, and when the rear flange 5a moves to the position of the tilting section 751, the rear flange 5a continues to turn over to the side of the box bottom 2 by the stopping action of the tilting section 751 until the rear flange is turned over into the box body 1. To this end, the front flange 4a and the rear flange 5a are both turned into the box body 1 under the action of the tilting section 751, the box body 1 enters the horizontal guide section 752 after passing through the tilting section 751, and the horizontal guide section 752 can always press the front flange 4a and the rear flange 5a, so that the front flange 4a and the rear flange 5a are ensured not to come out of the box body 1. The "inside" of the cartridge 1 in this preferred embodiment means: when the side edges 3, the front edge 4 and the rear edge 5 of the box body 1 are all erected, the four edges of the box body 1 and the box bottom 2 enclose a combined inner space.

Referring to fig. 9, the continuous non-stop box folding machine further includes an air blowing suction device, which includes an air blower 80, an air supply pipe 81, a belt conveyor 82, and an air suction belt 83 in order according to the flow direction of the air flow. The air is blown to the air suction belt 83 through the air supply pipe 81 of the air blower 80, the front edge folding mechanism 71 of the box body 1 can be ensured not to run in the folding process of the front edge 4, an air film layer can be formed between the box body 1 and the air suction belt 83, the friction force generated when the box body 1 moves is reduced, and the possibility of scratching the box body 1 is reduced.

In the above scheme, the front glue spraying device 20 and the rear glue spraying device 21 further comprise a glue spraying conveying mechanism 22 for spraying glue during the advancing process of the support box body 1; the side turning device 30 also comprises a side turning conveying mechanism 33 for supporting the side turning 3 of the box body 1 in the advancing process; the pressing device 40 also comprises a pressing conveying mechanism 42 for pressing the side edges 3 and the side edge turned edges 3a of the supporting box body 1 during the running process; the upright side device 50 further comprises an upright side conveyor mechanism 54 for supporting the upright side 3 of the box 1 during travel. The glue spraying conveying mechanism 22, the side turning conveying mechanism 33, the pressing conveying mechanism 42, the vertical side conveying mechanism 54 and the paper feeding conveying mechanism 12 all function to drive the box body 1 to move by friction, and the conveying mechanisms can adopt material conveying mechanisms such as belts, chain plates or mesh belts.

The application also provides a box folding method using the continuous non-stop box folding machine, which comprises the following steps:

a paper feeding step: stacking a plurality of single-sheet box bodies 1 between a paper box side baffle 13 and a paper box front baffle 14 of a paper feeding device 10, and sequentially conveying the single-sheet box bodies 1 through a paper feeding gap 11 by a paper feeding conveying mechanism 12; the shape of the case 1 when passing through the paper feeding device 10 in this step is shown in fig. 15;

and (3) glue spraying: spraying glue on a front glue spraying area 4c and a rear glue spraying area 5c on the front side 4 and the rear side 5 through a rear glue spraying device 21;

standing: the side edge 3 of the box body 1 is turned to a standing state through the vertical side edge device 50, and when the box body 1 passes through, the side edge 3 of the box body 1 is gradually guided to be turned upwards to the standing state through the side edge guide rod 51 of the vertical side edge device 50; the shape of the box body 1 when passing through the standing side device 50 in this step is shown in fig. 18;

ear folding step: the side lug 3b of the box body 1 is turned to the side where the box bottom 2 is located through the lug folding device 60, and when the box body 1 passes through, the spiral poking piece 61 of the lug folding device 60 rotates to push the side lug 3b to turn to the side where the box bottom 2 is located; the shape of the box 1 when passing through the ear folding device 60 in this step is shown in fig. 19;

front and back edge folding steps: the front edge 4 and the rear edge 5 are turned upwards through the front and rear edge folding devices 70, and the front edge 4 and the rear edge 5 after glue spraying are turned and erected and then overlapped and adhered with the turned side ears 3 b; in this step, the shape of the case 1 passing through the front folding mechanism 71 is shown in fig. 20, the shape of the case 1 passing through the rear folding mechanism 72 is shown in fig. 21, and the shape of the case 1 before it travels to the bead 75 is shown in fig. 22.

Further, in the glue spraying step, glue is sprayed to the side glue spraying area 3c on the side flanging 3a by the front glue spraying device 20, then the side flanging 3a after glue spraying is turned over to be overlapped and adhered with the side edge 3 by the side flanging device 30, the side edges 3 of the overlapped side flanging 3a are pressed together by the pressing device 40, the shape of the box body 1 after glue spraying is shown in fig. 16, and the shape of the box body 1 when the box body 1 advances to the pressing device 40 is shown in fig. 17.

The production processes of the front glue spraying device 20 and the rear glue spraying device 21 in the glue spraying step can be adjusted according to actual conditions. For example, the front glue-spraying device 20 and the rear glue-spraying device 21 can be placed in a single process to spray glue at the same time; or the glue can be sprayed to the side flanging 3a by the front glue spraying device 20, then the side flanging 3a is folded and erected after being bonded, the front edge 4 and the rear edge 5 are sprayed with glue by the rear glue spraying device 21, and the front edge 4 and the rear edge 5 after being sprayed with glue are folded and erected and then are overlapped and bonded with the turned side lugs 3 b.

Although the present invention has been described in detail hereinabove with reference to the general description and the specific embodiments, it will be apparent to those skilled in the art that modifications and improvements can be made to the embodiments of the present invention. Accordingly, such modifications and improvements are intended to be within the scope of the invention as claimed.

Claims

1. The utility model provides a do not stop and roll over box machine in succession, this do not stop and roll over box machine and be used for the box shaping of rolling over of box body (1), box body (1) includes box bottom (2), side (3), preceding (4) and back (5), and this do not stop and roll over box machine in succession includes: the device comprises a paper feeding device (10), a front glue spraying device (20), a side edge folding device (30), a pressing device (40), a side edge erecting device (50), a rear glue spraying device (21), a lug folding device (60) and a front and rear edge folding device (70); the front and rear edge folding device (70) comprises a front edge folding mechanism (71) for guiding the front edge (4) to be folded upwards and a rear edge folding mechanism (72) for guiding the rear edge (5) to be folded upwards, and the front and rear edge folding device (70) further comprises a chain conveying mechanism (73); the front flanging mechanism (71) comprises a front flanging installation seat (711) fixedly connected with the chain conveying mechanism (73), a front flanging rotating body (712) is connected to the upper rotating shaft of the front flanging installation seat (711), one end of the front flanging rotating body (712) extends outwards to form a front push-stop rod (7121) for guiding the front edge (4) to be turned upwards, and the front flanging device and the rear flanging device (70) are characterized by further comprising a guide rail (74) for restraining the front flanging mechanism (71), the guide rail (74) is provided with a guide surface (743), and the guide surface (743) is a smoothly-transited arc-shaped rail surface; the rotating body (712) is provided with a guide wheel (7123) which is in contact fit with the guide surface (743), and a rotating body rotating shaft (713) is arranged between the front flanging installation seat (711) and the rotating body (712); in the advancing process of the front flanging mechanism (71), a guide wheel (7123) of a front flanging rotating body (712) is guided by a guide surface (743) to drive a front push rod (7121) to rotate upwards around a rotating shaft (713) of the rotating body, and a guide front edge (4) is turned upwards to be in a standing state in the rotating process of the front push rod (7121).

2. A machine as claimed in claim 1, characterised in that said lateral upright means (50) comprise two lateral guide rods (51), said lateral guide rods (51) being inclined and progressively higher from the side of the box (1) where the lateral edge (3) is located toward the bottom (2) of the box (1), said lateral edge (51) being guided by said lateral guide rods (51) to fold up to the upright position when the lateral edge (3) is lying down.

3. The continuous non-stop box folding machine as claimed in claim 1, characterized in that the front edge folding mounting seat (711) is provided with an arc-shaped guide hole (7113), the front edge folding rotating body (712) is provided with a limit slider (715) extending into the arc-shaped guide hole (7113), and the rotating angle of the front edge folding rotating body (712) around the rotating shaft (713) of the rotating body is limited by the moving range of the limit slider (715) in the arc-shaped guide hole (7113); an elastic reset mechanism (716) is arranged between the front push stop rod (7121) and the front folding edge mounting seat (711).

4. The continuous non-stop box folding machine according to claim 1, characterized in that the chain conveying mechanism (73) comprises a chain wheel (731) and a chain (732), the rear folding mechanism (72) comprises a rear folding mounting seat (721) fixedly connected with the chain (732), a rear folding body (722) is connected on the rear folding mounting seat (721), and the rear folding body (722) gradually contacts with the box body (1) in the moving process of the chain (732) and guides the rear edge (5) to be folded upwards to a standing state; the front edge (4) and the rear edge (5) respectively extend outwards to form a front flanging (4 a) and a rear flanging (5 a); one end of the rear folding edge body (722) far away from the rear folding edge mounting seat (721) extends outwards to form a folding edge flanging (723) supporting the rear folding edge (5 a); the front and rear edge folding device (70) further comprises a pressing strip (75), and the pressing strip (75) is provided with a tilting section (751) for guiding the front edge folding edge (4 a) and the rear edge folding edge (5 a) to be folded towards the direction of the box bottom (2).

5. The continuous non-stop box folding machine according to claim 1, characterized in that the front and rear edges of the side edge (3) are respectively provided with a side lug (3 b), the front edge (4) and the rear edge (5) are respectively provided with a front side lug connection area (4 b) and a rear side lug connection area (5 b) corresponding to the connection of the side lugs (3 b), and the front edge (4) and the rear edge (5) are respectively provided with a front glue spraying area (4 c) and a rear glue spraying area (5 c) for spraying glue by the rear glue spraying device (21); the ear folding device (60) comprises a spiral shifting piece (61), when the spiral shifting piece (61) rotates, the side ears (3 b) are pushed to turn over towards the side of the box bottom (2), and the front edge (4) and the rear edge (5) after glue spraying are folded and erected and then overlapped and adhered with the turned side ears (3 b).

6. The continuous non-stop box folding machine according to claim 1, characterized in that the side edges (3) extend outwards to form side flanges (3 a), and the side flanges (3 a) are provided with side edge glue spraying areas (3 c) for spraying glue on the front glue spraying device (20); the side flanging device (30) comprises a first guide rod (31) and a second guide rod (32), when the side flanging (3 a) sprayed with glue is laid horizontally and passes through, the side flanging is guided by the first guide rod (31) to be turned upwards to be in a standing state, then the standing side flanging (3 a) is guided by the second guide rod (32) to be turned downwards and overlapped and bonded with the side (3).

7. A box folding method, characterized in that a continuous non-stop box folding machine according to any one of claims 1-6 is used, comprising the following steps:

paper feeding step: stacking a plurality of single-sheet box bodies (1) between a paper box side baffle (13) and a paper box front baffle (14) of a paper feeding device (10), and sequentially conveying the single-sheet box bodies (1) through a paper feeding gap (11) by a paper feeding conveying mechanism (12);

and (3) glue spraying: spraying glue on a front glue spraying area (4 c) and a rear glue spraying area (5 c) on the front side (4) and the rear side (5) through a rear glue spraying device (21);

standing: the side edge (3) of the box body (1) is turned over to be in a standing state through a side edge standing device (50);

folding the lug: the side ears (3 b) of the box body (1) are turned over to the side of the box bottom (2) through the ear folding devices (60);

folding the front and the back edges: the front edge (4) and the rear edge (5) are turned upwards through the front and rear edge folding devices (70), and the front edge (4) and the rear edge (5) after glue spraying are turned upwards and then overlapped and adhered with the turned side ears (3 b).

8. A box folding method according to claim 7, wherein in the glue spraying step, glue is sprayed to the side glue spraying area (3 c) on the side flange (3 a) by the front glue spraying device (20), then the side flange (3 a) after glue spraying is turned over to be overlapped and adhered with the side (3) by the side edge turning device (30), and the side edges (3) of the overlapped side flange (3 a) are pressed together by the pressing device (40).