Box folding device applied to guide rail boxing machine
Technical Field
The invention relates to a box folding device applied to a guide rail boxing machine, which is used for automatically packaging a pair of guide rails leaning on each other up and down, and belongs to the field of automatic packaging.
Background
Most of the existing boxing machines are used for sealing paper boxes, and the box folding step is completed by putting products into the paper boxes after the box is folded and molded or moving the products along with the paper boxes (such as playing card boxing); the guide rail boxing machine is a machine which automatically sleeves the paper box on the guide rail, is convenient for product transportation and increases the appearance aesthetic degree of the product. The guide rail boxing machine is mainly divided into a folding box part and a gluing part, and for the folding box part, the guide rail boxing machine is characterized in that a guide rail is fixed, and a paper box is required to be sleeved at one end (namely, non-sealing folding); the existing boxing machine mechanism cannot realize full automation of boxing of the paper boxes, and influences working efficiency.
Disclosure of Invention
The technical problems to be solved by the invention are as follows: the box folding device applied to the guide rail box packing machine can realize folding of the non-sealing paper boxes, is favorable for realizing full automation of the guide rail box packing process, and is reliable in working process and high in working efficiency.
The technical scheme adopted for solving the technical problems is as follows: be applied to book box device of guide rail cartoning machine, its characterized in that: the device comprises an upper box folding mechanism, a lower box folding mechanism, a rear lug folding mechanism and a pushing mechanism for applying force to the three mechanisms;
the upper box folding mechanism is arranged above the lower box folding mechanism, and the rear earphone folding mechanism is positioned between the upper box folding mechanism and the lower box folding mechanism;
the upper box folding mechanism comprises a pushing panel, an upper turning plate, a small turning plate I, a small turning plate II and an upper cylinder, wherein the pushing panel is vertically arranged, the upper turning plate is rotatably hinged to the upper side edge of the pushing panel, the small turning plate I and the small turning plate II are rotatably hinged to the left side and the right side of the upper turning plate, and the upper cylinder is fixed on the back surface of the upper turning plate and drives the small turning plate I and the small turning plate II to be folded through two pressing legs; a tension spring for resetting is also arranged between the small turning plate I and the small turning plate II;
the lower box folding mechanism comprises a lower turning plate rotatably hinged to the lower side edge of the pushing panel, a lower air cylinder fixed on the back surface of the lower turning plate and a plugboard driven by the lower air cylinder; the top end of a piston rod of the lower cylinder is fixed on the back surface of the lower turning plate, and the axis of the piston rod is perpendicular to the plane of the lower turning plate; the plugboard is arranged on the cylinder body of the lower cylinder, the left side and the right side of the plugboard are respectively provided with a folded edge which bends 90 degrees towards the front surface of the lower turning board, and the distance between the two folded edges is larger than the width of the lower turning board;
the rear folding earphone mechanism comprises a pair of folding earphone inserts which penetrate through a through hole in the middle of the pushing panel and then extend out of the front of the pushing panel, one end of the folding earphone inserts are fixed with the folding earphone inserts, the other end of the folding earphone inserts are inserted and positioned on the pushing backboard, a compression spring which is sleeved on the folding earphone inserts, and a first thin nut and a second thin nut which are locked at the thread at the tail end of the folding earphone;
the pushing mechanism comprises a pushing backboard located at the rear side of a pushing panel, an upper backboard seat and a lower backboard seat which are respectively arranged at the upper side and the lower side of the pushing backboard, an upper connecting rod with two ends respectively hinged with the upper backboard seat and the upper turning plate seat, a lower connecting rod with two ends respectively hinged with the lower backboard seat and the lower turning plate seat, and a pushing cylinder which is fixed on a rear guide rod frame and applies force to the direction of the pushing panel to push the pushing backboard.
The push panel is arranged vertically and fixedly connected to the rear guide bar frame 47 by means of a number of horizontally arranged connecting bars 55.
The push panel is provided with a plurality of suction cups for sucking the paper box sheets 70.
Compared with the prior art, the automatic box folding machine has the advantages that the automatic box folding of the unsealed folding box can be realized, the automatic, efficient, accurate and reliable box packing of the guide rail is realized, the production cost is reduced, and the production efficiency is improved.
Drawings
Fig. 1 is a schematic perspective view of the present invention.
Fig. 2 is a schematic perspective view of the upper folding box mechanism in the present invention.
Fig. 3 is a schematic perspective view of the lower folding box mechanism in the present invention.
Fig. 4 is a schematic perspective view of the rear ear folding mechanism in the present invention.
Fig. 5 is a schematic perspective view of the pushing mechanism in the present invention.
Fig. 6 is a schematic view of another angle structure of the lower folding box mechanism in the present invention.
Fig. 7 is a schematic perspective view of the insert plate in the fold-down box mechanism.
Fig. 8 is a schematic structural view of the carton before folding (fully flattened state).
Fig. 9 is a schematic view of the initial operation state of the present invention.
Fig. 10 is a schematic illustration of the first step in the folding process of the present invention (the carton in its unfolded state is installed in position).
Fig. 11 is a schematic diagram of a second step of the folding process of the present invention.
Fig. 12 is a schematic perspective view of the folded state of the carton of fig. 11.
Fig. 13 is a schematic view of a third step of the folding process of the present invention.
Fig. 14 is a schematic perspective view of the folded state of the carton of fig. 13.
Fig. 15 is a schematic view of a fourth step of the folding process of the present invention.
Fig. 16 is a schematic perspective view of the folded state of the carton of fig. 15.
Fig. 17 is a schematic diagram showing the structure in which the folding process is completed and the respective mechanisms return to the initial state.
Detailed Description
Specific embodiments are described in detail below with reference to the accompanying drawings.
The box folding device applied to the guide rail boxing machine shown in fig. 1-9 comprises an upper box folding mechanism 1, a lower box folding mechanism 2, a rear lug folding mechanism 3 and a pushing mechanism 4, wherein the working surfaces of the upper box folding mechanism, the lower box folding mechanism and the rear lug folding mechanism face to a guide rail 60 used as a folding die. The upper box folding mechanism is arranged above the lower box folding mechanism, and the rear box folding mechanism is arranged between the upper box folding mechanism and the lower box folding mechanism.
As shown in fig. 2, the upper folding box mechanism includes an upper flap 11, a first small flap 121, a second small flap 122, an upper cylinder 13, a first leg pressing 141, a second leg pressing 142, and a tension spring 15. The push panel 41 is arranged vertically and fixedly connected with the rear guide bar frame 47 by a plurality of (four in the drawing) horizontally arranged connecting bars 55; the pushing panel can be provided with a plurality of sucking discs for sucking the paper box sheets 70 (the sucking discs and an air extractor communicated with the sucking discs through air pipes are all conventional techniques, and are omitted from the figure). The upper turning plate 11 is hinged and installed on the top edge of the pushing panel 41 through a hinge shaft which is horizontally arranged (when the upper turning plate turns to a vertical state, the front surface of the upper turning plate serving as a working surface is kept in the same plane with the front surface of the pushing panel 41), the small turning plate I121 and the small turning plate II 122 are installed on the left side and the right side of the upper turning plate 11, and a tension spring 15 for resetting is arranged between the small turning plate I121 and the small turning plate II 122; the piston rod of the upper cylinder 13 is fixed on the back of the upper turning plate 11, and the first pressing leg 141 and the second pressing leg 142 are respectively fixed on the left side and the right side of the cylinder body of the upper cylinder 13 and press the first small turning plate 121 and the second small turning plate 122 through the end parts (the end parts are provided with rollers) which are hung forwards.
As shown in fig. 3, 6 and 7, the lower box folding mechanism includes a lower flap 21, a plugboard 22 and a lower cylinder 23. The lower turning plate 21 is positioned right below the upper turning plate 11 and is hinged and installed at the bottom end edge of the push panel 41 through a hinge shaft which is horizontally arranged (when the lower turning plate turns to a vertical state, the front surface of the lower turning plate serving as a working surface is kept in the same plane with the front surface of the push panel 41); the top end of a piston rod 23 of the lower air cylinder is fixed on the back surface of the lower turning plate 21 (the axis of the piston rod is perpendicular to the plane of the lower turning plate), the inserting plate 22 is arranged on the body of the lower air cylinder, and the left side and the right side of the inserting plate 22 are respectively provided with a folded edge 221 which bends towards the front surface of the lower turning plate by 90 degrees (the distance between the two folded edges is larger than the width of the lower turning plate).
As shown in fig. 4, the rear folding earphone structure includes a folding ear insert 31, a folding ear rod 32, a compression spring 33, a first thin nut 341, and a second thin nut 342. The lug folding inserts 31 are positioned in the middle of the push panel 41, pass through the perforations in the middle of the push panel 41 and then extend out of the front of the push panel 41; one end of the lug folding rod 32 is arranged behind the lug folding insert 31 and connected with the lug folding insert, and the other end of the lug folding rod is inserted and positioned in the jack of the push backboard and can perform telescopic movement in the jack; the compression spring 33 is sleeved on the lug folding rod 32 and is positioned between the lug folding insert 31 and the pushing backboard 41, and the lug folding insert and the pushing backboard are respectively applied with a pressing force; the first thin nut 341 and the second thin nut 342 are locked at the thread of the end of the lug rod 32, so as to lock the lug rod on the push back plate.
As shown in fig. 5, in the pushing mechanism; the push back plate 42 is located at the rear side of the push front plate 41 and is slidably positioned on the connecting rod by a plurality of sliding bearings which are matched with the connecting rod 55; the upper backboard seat 431 is arranged on the upper side of the push backboard 42, the lower backboard seat 432 is arranged on the lower side of the push backboard 42, two ends of the upper connecting rod 441 are respectively hinged with the upper backboard seat 431 and the upper flap seat 451, and the upper flap seat 451 is arranged on the back of the upper flap 11; two ends of the lower connecting rod 442 are respectively hinged with the lower backboard base 432 and the lower flap base 452, and the lower flap base 452 is arranged on the back of the lower flap 21; one end of the pushing cylinder 46 is fixed on the back side of the pushing backboard 42, and the other end is fixed on the rear guide rod frame 47.
The working principle of the invention is as follows: in an initial state (see fig. 8), the paper box sheet 70 is firstly placed on the front surface of the push panel manually or by other equipment and sucked by the sucking disc (see fig. 10), and the push cylinder 46 works to push the push back plate 42 forwards; because the push panel 41 is fixed at this time, and the upper turning plate 11 and the lower turning plate 21 are hinged with the push panel 41 respectively, under the action of the upper connecting rod 441 and the lower connecting rod 442, when the upper turning plate 11 rotates clockwise and the lower turning plate 21 rotates anticlockwise and moves to a horizontal position and are parallel to each other (see fig. 11), the push back plate (42) pushes the lug rod 31 to move forwards to extend out of the push panel, and applies force to the paper box ear 71 and turns over the paper box ear 71 by 90 degrees (in the process, the compression spring 33 arranged on the lug rod 31 begins to be compressed), and then the post-lug folding work (see fig. 12) is completed; at this time, the lower cylinder 23 starts to operate, and the piston rod of the lower cylinder 23 is initially in the push-out state, and the piston rod is retracted during operation, so that the two side folds of the insert plate 22 fixed on the cylinder body of the lower cylinder 23 are pressed upward, and the left and right side edges of the lower part of the paper box sheet 70 are folded upward by 90 degrees (see fig. 13 and 14), thereby completing the second box folding step.
Glue is then applied (dispensed) by other means to the left and right side edges of the folded lower portion of the sheet 70, and then the upper cylinder 13 is activated. The upper cylinder 13 is also initially in a push-out state, when the piston rod of the upper cylinder 13 is retracted, the first and second pressing legs 141 and 142 fixed with the cylinder move together with the cylinder, and then the first and second pressing legs 141 and 142 press the first and second small turning plates 121 and 122 down and fold (fold together with the left and right side edges of the upper portion of the paper box sheet 70) through the rollers provided at the overhanging ends thereof, respectively, until the fold is 90 degrees so that the left and right side edges of the upper portion of the paper box sheet 70 are bonded with the left and right side edges of the lower portion (see fig. 15 and 16). When the process starts, the lower cylinder starts to work again, returns to the push-out state and withdraws the plugboard. After the folding of the paper folding box is finished, each mechanism returns to the initial state (see figure 17): the first small turning plate 121 and the second small turning plate 122 return to the original states under the action of the tension spring 15, the pushing cylinder 46 acts, the pushing back plate 42 starts to retreat, the upper turning plate 11 and the lower turning plate 21 return to the original positions under the action of the upper connecting rod 441 and the lower connecting rod 442, in addition, the back folding mechanism 3 is brought back to the original positions by the pushing back plate 42 under the action of the limit of the first thin nut 341 and the second thin nut 342, and one folding box procedure is completed; the above process is repeated, and the production process is continuously carried out.
The box folding device applied to the guide rail box packing machine provided by the invention is described in detail, and specific examples are applied to the principle and the implementation mode of the invention, and the description of the examples is only used for helping to understand the invention and the core idea. It should be noted that it will be apparent to those skilled in the art that various modifications and adaptations of the invention can be made without departing from the principles of the invention, such as the interchange of positions of the upper and lower bellows mechanisms within the scope of the invention as defined in the claims.