Paper box inner support folding forming device and automatic equipment

Abstract

The utility model relates to the technical field of automatic production for folding and forming paper box inner supports, in particular to a paper box inner support folding and forming device and automatic equipment, which comprises a folding component, the folding component is provided with a forming mechanism and a forming carrier, and the forming carrier is used for supporting and limiting a paper board to keep the paper board at a preset position; the forming mechanism is provided with a downward pressing support, a downward pressing air cylinder, a downward pressing bearing and a downward pressing tool bit, the downward pressing support is fixedly connected to the operation platen, the downward pressing air cylinder and the downward pressing bearing are installed on the downward pressing support, and the downward pressing tool bit is movably connected to the downward pressing support through the downward pressing bearing and is in transmission connection with a piston rod of the downward pressing air cylinder, so that the downward pressing air cylinder operates; and the pressing tool bit is driven to move to press and fold the inner support part of the paperboard. In conclusion, the paper box inner supports with different thicknesses and different depths can be folded, formed and processed, the production quality of the paper box inner supports can be improved, and it is ensured that the shapes of the inner supports cannot be deformed.

Description

Technical Field

[0001] The utility model relates to the technical field of automatic production for folding and forming an inner support of a paper box, in particular to a folding and forming device for the inner support of a paper box and an automatic device. Background Art

[0002] In the design and production of various packaging boxes, in order to protect the items inside and avoid vibration damage to the items, generally, an inner support corresponding to the shape and structure of the content and the packaging box needs to be designed inside the packaging box. The inner support of the packaging box is generally made of paper material. In actual design and production, the inner support of the packaging box has various structures. For the convenience of storage and transportation, the inner support of the packaging box is generally in a flat structure initially, and stamping creases are made on the flat structure, or the parts that need to be separated are cut off. When folding and assembling are required, it can be folded and formed according to the creases.

[0003] At present, the production of the outer packaging paper boxes of electronic products used in people's daily life, the cardboard inner supports inside the paper boxes, etc., especially the folding of the inner supports, is relatively complex. Ordinary mechanical mechanisms are not convenient for automatic folding. Therefore, manual operation is usually still adopted for folding. This method has very low efficiency, high labor production cost, and it is easy to dirty and wrinkle the inner support of the paper box by manually folding and forming the inner support of the paper box. The quality of the produced products is not uniform and not standard, the production efficiency is low, the cost is high, and it is difficult to complete the production task in time when there is an urgent order, bringing great passivity to the production of the enterprise.

[0004] If considering automatic folding and forming processing of the paper box, it is necessary to consider how to perform folding and forming operations on the pre-partially cut inner support part on the raw material cardboard of the paper box so that it can be folded into the required inner support shape.

[0005] Moreover, because the products contained in the packaging are different, the thickness of the cardboard is different, and even the folding depth of the inner support is different. Therefore, in the production of automatic equipment, how to perform folding and forming processing on the inner supports of paper boxes with different thicknesses and different depths is a technical problem that needs to be solved. Summary of the Utility Model

[0006] The utility model aims to provide a technical solution to solve the above problems in order to overcome the above situations.

[0007] The utility model provides a paper box inner support folding and forming device, comprising a folding component installed on a working table, the folding component is provided with a forming mechanism and a forming carrier, the forming mechanism is used to perform folding and forming operations on the middle inner support part of a paperboard to be processed, so that the middle inner support part of the paperboard forms a preset inner support folding shape; the forming carrier is used to support and limit the paperboard to be processed, so that the paperboard maintains a preset position; the forming mechanism is provided with a pressing bracket, a pressing cylinder, a pressing bearing and a pressing cutter head, the pressing bracket is fixedly connected to the working table, the pressing cylinder and the pressing bearing are respectively installed on the pressing bracket, the pressing cutter head is movably connected to the pressing bracket through the pressing bearing and forms a transmission connection with the piston rod of the pressing cylinder, so that the pressing cylinder is operated to drive the pressing cutter head to move a certain distance in the vertical direction, thereby performing a pressing and folding operation on the inner support part of the paperboard to be processed.

[0008] As a further solution of the utility model: the forming mechanism is also provided with an adapter bracket, an adapter cylinder and an adapter bearing, the adapter bracket is fixedly connected to the guide shaft of the downward pressure bearing, and forms a transmission connection with the piston rod of the downward pressure cylinder; the adapter cylinder and the adapter bearing are respectively installed on the adapter bracket, and the downward pressure cutter head is movably connected to the adapter bracket through the adapter bearing, and forms a transmission connection with the piston rod of the adapter cylinder.

[0009] As a further solution of the utility model: the forming mechanism is also provided with a pre-stress plate, a pre-stress bearing and a pre-stress spring, the pre-stress bearing is fixedly connected to the adapter bracket, the pre-stress plate is fixedly connected to the guide shaft of the pre-stress bearing, the pre-stress spring is sleeved on the guide shaft of the pre-stress bearing, one end of the pre-stress spring abuts against the pre-stress bearing, and the other end abuts against the pre-stress plate.

[0010] As a further solution of the utility model: the pressing cutter head is provided with a folding cylinder, a folding knife holder and a folding curved knife, the folding cylinder is fixedly connected to the pressing cutter head, the folding knife holder is transmission-connected to the piston rod of the folding cylinder, the folding curved knife is fixedly connected to the folding knife holder, and the folding cylinder is operated to push the folding curved knife to move toward the two ends of the pressing cutter head, so that the folding curved knife performs a folding operation on the inner supporting part of the cardboard to push outward.

[0011] As a further solution of the utility model: the folding curved knife is provided with a triangular blade tip, and the triangular blade tip is used to fold the inner supporting part of the cardboard, and the inclination angle of the triangular blade tip is set to 40 degrees to 45 degrees.

[0012] As a further solution of the utility model: one end of the folding curved knife is fixedly connected to the folding knife holder, and the other end thereof is provided with a first curved knife and a second curved knife, and a curved knife gap is provided between the first curved knife and the second curved knife, and the curved knife gap is used to avoid the limiting plate on the cardboard, so that the limiting plate will not be folded by the folding curved knife, and will remain in the same plane with the cardboard.

[0013] As a further solution of the utility model: the forming carrier is provided with a bending support plate, which is installed on the forming carrier and has a bending bevel matching the folding curved knife, so that the inner supporting part of the cardboard is folded between the bending bevel and the folding curved knife under the folding operation of the folding curved knife to form a folded shape.

[0014] As a further solution of the utility model: the forming mechanism is also provided with a pallet guide rail, a pallet slider and a pallet cylinder, the pallet guide rail and the pallet cylinder are respectively fixed to the forming carrier, the pallet slider and the pallet guide rail cooperate with each other to form a sliding connection, the bent pallet is fixed to the pallet slider and transmission connected to the piston rod of the pallet cylinder, so that the pallet cylinder operates and drives the bent pallet to move laterally a certain distance.

[0015] As a further solution of the utility model: the molding mechanism is further provided with an upper supporting block and an upper supporting cylinder, the upper supporting cylinder is fixedly connected to the molding carrier, and the upper supporting block is transmission-connected to the piston rod of the upper supporting cylinder.

[0016] The utility model also provides an automated device, comprising the above-mentioned paper box inner support folding and forming device, which is used for folding and forming the paper box to form the required inner support shape.

[0017] Compared with the prior art, the beneficial effects of the utility model are:

[0018] 1. By setting the downward pressure cylinder, the downward pressure bearing, the adapter cylinder and the adapter bearing, the downward pressure cutter head can be moved up and down. At the same time, the adapter cylinder can be used to push the downward pressure cutter head downward, so that the downward pressure cutter head can push the inner support part of the cardboard downward, so that the inner support part can be bent downward to form a preset inner support shape, thereby completing the folding and forming operation of the inner support of the paper box.

[0019] 2. By setting a folding cylinder, a folding knife holder and a folding knife, the downwardly bent inner support part is pushed to both sides for folding, thereby increasing the folding angle of the inner support part, strengthening its folding and forming strength, and preventing the inner support part from restoring its original shape or changing its folding shape under the action of its own stress, which causes the inner support shape to fail to meet the preset production requirements. In particular, for relatively thick or hard paperboards that are easier to restore to their original shape, the quality of the inner support forming shape can be improved.

[0020] 3. By setting a triangular knife tip, the triangular bevel of the triangular knife tip cooperates with the bevel of the bend support plate to achieve the side wing thickness compensation function, that is, the crank part of the folding knife can extend into the bottom of the bevel when moving to the side, and the bend support plate can move accordingly according to the thickness of the side wall of the inner support part, thereby achieving the thickness compensation of the side wall of the inner support part of the paperboard, so that paperboards of various thicknesses can be folded. It can also ensure that the force on the side wall of the inner support part is uniform during the folding process, thereby improving the quality of the inner support shape of the paperboard.

[0021] 4. By setting an upper support block and an upper support cylinder, the upper support block is driven by the upper support cylinder to move to a preset height, so that after the inner support part is folded, it just abuts against the upper support block, avoiding the inner support part from being deformed after being pressed down, which affects the final product quality of the inner support paperboard. In addition, the moving distance of the upper support block can be optimized and improved according to the depth of the inner support, so as to adapt to the shape of the inner support with different depths.

[0022] Therefore, after the above-mentioned improvements, the utility model can realize a paper box inner tray folding and forming device and automated equipment, so that in the production of automated equipment, paper box inner trays of various thicknesses and depths can be folded and formed, and the production quality of the paper box inner tray can be improved to ensure that the shape of the inner tray will not be deformed.

[0023] Additional aspects and advantages of the present invention will be given in part in the following description, and in part will become apparent from the following description, or will be learned through the practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0025] Figure 1 It is a structural schematic diagram of the molding mechanism and the molding carrier of the utility model;

[0026] Figure 2 It is a structural schematic diagram of the adapter bracket and the pre-pressing plate of the utility model;

[0027] Figure 3 It is a structural schematic diagram of the downward pressing cutter head of the utility model;

[0028] Figure 4 It is a structural schematic diagram of the pressing cutter head and the forming carrier of the utility model;

[0029] Figure 5 yes Figure 4 A schematic diagram of the local enlarged structure at point A in the middle;

[0030] Figure 6 It is a structural schematic diagram of the folding mechanism and the folding carrier of the utility model;

[0031] Figure 7 yes Figure 6 A schematic diagram of the local enlarged structure at B in the middle;

[0032] Figure 8 It is a structural schematic diagram of the paperboard of the utility model;

[0033] Figure 9 It is a structural schematic diagram of the folding assembly of the utility model.

[0034] The reference numerals and names in the figures are as follows:

[0035] 300 folding assembly; 301 first folding part; 302 second folding part; 303 third folding part; 304 fourth folding part; 310 forming mechanism; 311 pressing bracket; 312 pressing cylinder; 313 pressing bearing; 314 adapter bracket; 315 adapter cylinder; 316 adapter bearing; 317 pre-pressing plate; 318 pre-pressing bearing; 319 pre-pressing spring; 320 pressing cutter head; 321 folding cylinder; 322 Folding tool holder; 323 folding scimitar; 324 first scimitar; 325 second scimitar; 326 scimitar gap; 327 triangular tool tip; 330 forming carrier; 331 bending support plate; 332 bending bevel edge; 333 support plate guide rail; 334 support plate slider; 335 support plate cylinder; 336 limiting support block; 337 upper support pressure block; 338 upper support cylinder; 60 cardboard; 62 limiting plate; 63 inner support part; 64 four side parts. DETAILED DESCRIPTION

[0036] The technical solutions in the embodiments of the present invention are described clearly and completely below. Obviously, the described embodiments are only a part of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0037] See also Figures 1 to 9In an embodiment of the utility model, a paper box inner support folding and forming device comprises a folding assembly 300 installed on a work table in an automated device, wherein the folding assembly 300 is provided with a forming mechanism 310 and a forming carrier 330, wherein the forming mechanism 310 is used to perform a folding and forming operation on a middle inner support portion 63 of a paperboard 60 to be processed, so that the middle inner support portion 63 of the paperboard 60 forms a preset inner support folding shape; the forming carrier 330 is used to support and limit the paperboard 60 to be processed, so that the paperboard 60 maintains a preset position; the forming mechanism 310 A pressing bracket 311, a pressing cylinder 312, a pressing bearing 313 and a pressing cutter head 320 are provided. The pressing bracket 311 is fixedly connected to the working table. The pressing cylinder 312 and the pressing bearing 313 are respectively installed on the pressing bracket 311. The pressing cutter head 320 is movably connected to the pressing bracket 311 through the pressing bearing 313 and forms a transmission connection with the piston rod of the pressing cylinder 312. When the pressing cylinder 312 is operated, the pressing cutter head 320 is driven to move a certain distance in the vertical direction, thereby performing a pressing and folding operation on the inner supporting part 63 of the cardboard 60 to be processed.

[0038] Specifically, in order to realize the fully automated folding and forming of the inner tray of the paper box, it is necessary to set up corresponding components for coordinated operation. The corresponding components can be installed in the frame for easy management. The corresponding workbench can also be set in the frame so that the relevant components can be installed on the workbench. In addition, the high-pressure airflow required by the power and pneumatic components can be connected to the frame so that all components in the frame can operate normally.

[0039] Secondly, since the cardboard 60 to be processed has been cut at a preset position in advance when entering the automated equipment, the part 63 that needs to be folded into the inner support has been partially cut, but is still in the same plane with the cardboard 60. Therefore, the pressing knife head 320 can be driven by the pressing cylinder 312 to press down the part that needs to be folded, so that it is separated from the plane of the cardboard 60 and bent downward at a certain angle to form the shape of a folded inner support.

[0040] Again, the pressing cylinder 312 can provide the pressing head 320 with power to move up and down, and at the same time, can also provide the pressing head 320 with power to press the inner supporting part 63 of the cardboard 60 downward, so that the pressing head 320 can bend the inner supporting part 63 of the cardboard 60 that has been partially cut downward to form an inner supporting shape that can accommodate the SSD solid state drive.

[0041] In addition, other devices may be provided in the automated equipment to fold the four side portions 64 of the paperboard 60 so as to cooperate with the inner supporting portion 63 to form the required internal matching pattern of the packaging box, which will not be described in detail here.

[0042] like Figure 1And Figure 2 As shown, preferably, the forming mechanism 310 is further provided with a transfer bracket 314, a transfer cylinder 315 and a transfer bearing 316. The transfer bracket 314 is fixedly connected to the guide shaft of the lower pressure bearing 313 and is in transmission connection with the piston rod of the lower pressure cylinder 312. The transfer cylinder 315 and the transfer bearing 316 are respectively installed on the transfer bracket 314. The lower pressure cutter head 320 is movably connected to the transfer bracket 314 through the transfer bearing 316 and is in transmission connection with the piston rod of the transfer cylinder 315.

[0043] Specifically, both the lower pressure bearing 313 and the transfer bearing 316 can be linear bearings in existing products. It is a linear motion system. The linear bearing is used in cooperation with the guide shaft, so that the corresponding guide shaft forms a stable linear motion under the cooperation of the linear bearing, and the components connected thereto can perform linear motion synchronously. Since during the production process of the entire automated equipment, the corresponding material transfer assembly is required to place the cardboard 60 on the forming carrier 330 or remove it from the forming carrier 330, after the lower pressure cutter head 320 completes the pressing operation, it needs to move upward a certain distance to avoid the material transfer assembly. Moreover, the driving force for moving the lower pressure cutter head 320 downward is not the same as the driving force for pressing the cardboard 60 by the lower pressure cutter head 320. Therefore, preferably, the lower pressure cylinder 312 and the lower pressure bearing 313 are provided to move the lower pressure cutter head 320 from above to below, approaching or abutting on the cardboard 60. At the same time, the transfer cylinder 315 and the transfer bearing 316 are provided to apply a downward pressing driving force to the lower pressure cutter head 320, so that the lower pressure cutter head 320 can perform a pressing and folding operation on the inner support part 63 of the cardboard 60, and after being pressed and bent, it forms a preset inner support shape.

[0044] As Figure 2 shown, preferably, the forming mechanism 310 is further provided with a pre-pressing plate 317, a pre-pressing bearing 318 and a pre-pressing spring 319. The pre-pressing bearing 318 is fixedly connected to the transfer bracket 314. The pre-pressing plate 317 is fixedly connected to the guide shaft of the pre-pressing bearing 318. The pre-pressing spring 319 is sleeved on the guide shaft of the pre-pressing bearing 318, one end of which abuts against the pre-pressing bearing 318 and the other end abuts against the pre-pressing plate 317.

[0045] Specifically, the pre-pressing plate 317 needs to be provided with a pre-pressing through hole at the position corresponding to the pressing cutter head 320, and the pre-pressing through hole is used to avoid the pressing cutter head 320. When the cardboard 60 to be processed is placed on the forming carrier 330, in order to prevent the cardboard 60 from being displaced when the pressing cutter head 320 presses and folds the cardboard 60, thereby causing defective products, the pre-pressing plate 317 and the pre-pressing spring 319 can be provided to pre-press and fix the cardboard 60, so that the cardboard 60 is fixed in position by the pre-pressing plate 317 and then pressed and folded by the pressing cutter head 320. The pressing cutter head 320 moves downward under the drive of the adapter cylinder 315, passes through the pre-pressing through hole, and presses and folds the inner support part 63 of the cardboard 60, so that it is bent into a preset inner support shape.

[0046] like Figure 2 and Figure 3 As shown, preferably, the pressing knife head 320 is provided with a folding cylinder 321, a folding knife holder 322 and a folding curved knife 323, the folding cylinder 321 is fixedly connected to the pressing knife head 320, the folding knife holder 322 is transmission-connected to the piston rod of the folding cylinder 321, the folding curved knife 323 is fixedly connected to the folding knife holder 322, and the folding cylinder 321 is operated to push the folding curved knife 323 to move toward the two ends of the pressing knife head 320, so that the folding curved knife 323 performs a folding operation on the inner supporting part 63 of the cardboard 60 to move outward.

[0047] Specifically, the folding cylinder 321 preferably adopts a bidirectional double-rod hydraulic cylinder in existing products. The bidirectional double-rod hydraulic cylinder is a hydraulic cylinder with piston rods on both sides of the piston, generally bidirectional hydraulic drive, and can achieve bidirectional constant speed reciprocating motion. The structure of the hydraulic cylinder can basically be divided into five parts: cylinder barrel and cylinder head, piston and piston rod, sealing device, buffer device and exhaust device. The piston rods on both sides of the bidirectional double-rod hydraulic cylinder can respectively drive the folding scimitars 323 on both sides to move synchronously to both sides.

[0048] Secondly, if the inner support portion 63 of the cardboard 60 is simply pressed downward to fold it to form a side wall perpendicular to the plane of the cardboard 60, the shape of the inner support formed in this way is prone to deformation, resulting in it being restored to its original shape, or being restored upward a certain distance, resulting in the cardboard 60 The inner support folding degree is unqualified. In later use, when placing the SSD solid state hard disk, the hard disk cannot be fixed or protected well.

[0049] Therefore, a folding cylinder 321 and a folding bending knife 323 can be arranged at the pressing cutter head 320. The folding cylinder 321 is used to drive the folding bending knife 323 to move a certain distance to both sides, and then, by virtue of the special crank-shaped structure of the folding bending knife 323, the side walls of the inner support of the cardboard 60 can continue to bend to both sides, so that the included angle formed by the side walls and the cardboard 60 is greater than 90 degrees, thereby increasing the folding force and making it easier to form the correct inner support shape. Moreover, after the pressing cutter head 320 is moved away, or after the cardboard 60 is folded and discharged, or during the next step of the hard disk packaging process, the correct inner support shape can still be maintained.

[0050] As Figure 3 shown, preferably, the folding bending knife 323 is provided with a triangular knife tip 327, and the triangular knife tip 327 is used to perform a folding operation on the inner support part 63 of the cardboard 60. The inclination angle of the triangular knife tip 327 is set to 40 degrees to 45 degrees. The inclination angle of the triangular knife tip 327 is preferably set to 42 degrees.

[0051] Specifically, after the inner support component of the cardboard 60 is folded and continues to bend to both sides, preferably, the triangular knife tip 327 is used to push the side walls of the inner support so that it can bend to both sides. It should be emphasized that although the triangular knife tip 327 part of the folding bending knife 323 is called a knife tip, it does not cut the cardboard 60 with the pointed part of the knife tip, but uses the hypotenuse of the triangle of the triangular knife tip 327 to push the side wall of the cardboard 60, so that it continues to bend a certain angle to both sides, thereby forming a more stable inner support shape. Therefore, the inclination angle of the hypotenuse of the triangular knife tip 327 is preferably set to 40 degrees to 45 degrees, and more preferably set to 42 degrees.

[0052] As Figure 3 and Figure 5 shown, preferably, one end of the folding bending knife 323 is fixedly connected to the folding knife holder 322, and the other end is provided with a first bending knife 324 and a second bending knife 325. A knife gap 326 is arranged between the first bending knife 324 and the second bending knife 325, and the knife gap 326 is used to avoid the limiting piece 62 on the cardboard 60, so that the limiting piece 62 will not be folded by the folding bending knife 323 and remains in the same plane as the cardboard 60.

[0053] Specifically, when the SSD solid-state hard disk is installed in the inner support part 63 of the cardboard 60, in order to prevent the hard disk from falling off or jittering, a limiting piece 62 can be arranged on the cardboard 60. Therefore, when the folding assembly 300 performs a folding process, it is necessary to avoid the limiting piece 62 to prevent the formation of folding on the limiting piece 62 and the loss of the function of the limiting piece 62. Therefore, a knife gap 326 can be arranged between the two bending knives to avoid the limiting piece 62.

[0054] AsFigures 4 to 7 As shown, preferably, the forming carrier 330 is provided with a bending support plate 331, and the bending support plate 331 is installed on the forming carrier 330, and is provided with a bending bevel 332 matching the folding curved knife 323, so that the inner supporting part 63 of the cardboard 60 is folded between the bending bevel 332 and the folding curved knife 323 under the folding operation of the folding curved knife 323 to form a folded shape.

[0055] Specifically, the bending support plate 331 is mainly used to support the cardboard 60 to be processed, so that the pressing blade head 320 can press down the cardboard 60 supported thereon. At the same time, in order to cooperate with the triangular blade tip 327 of the folding curved blade 323 to bend the inner supporting part 63 of the cardboard 60 at a larger angle, a bending bevel 332 can also be provided on the side corresponding to the triangular blade tip 327, and the bending bevel 332 is used to abut against the side wall of the inner supporting part 63, so that the side wall of the inner supporting part 63 can be bent to a preset angle, while not causing the bending angle to be too large to damage the cardboard 60.

[0056] like Figure 4 and Figure 5 As shown, preferably, the forming mechanism 310 is also provided with a pallet guide rail 333, a pallet slider 334 and a pallet cylinder 335, the pallet guide rail 333 and the pallet cylinder 335 are respectively fixed to the forming carrier 330, the pallet slider 334 and the pallet guide rail 333 cooperate with each other to form a sliding connection, the bent pallet 331 is fixed to the pallet slider 334, and is transmission-connected to the piston rod of the pallet cylinder 335, so that the pallet cylinder 335 is operated to drive the bent pallet 331 to move laterally a certain distance.

[0057] Specifically, by setting the bending support plate 331 to be able to move laterally, the side wing thickness compensation function can also be achieved, that is, the crank portion of the folding curved knife 323 can be used to extend into the bottom of the bending bevel 332 when moving sideways, and the bending support plate 331 can move accordingly according to the thickness of the side wall of the inner supporting part 63, thereby achieving thickness compensation for the side wall of the inner supporting part 63 of the paperboard 60, so that paperboards 60 of various thicknesses can be folded. It can also ensure that the force on the side wall of the inner supporting part 63 is uniform during the folding process, thereby improving the quality of the inner supporting shape of the paperboard 60.

[0058] At the same time, the bending support plate 331 can be moved horizontally to both sides by a certain distance, and can also be separated from the inner supporting part 63 of the folded cardboard 60, so that the formed cardboard 60 can be normally sucked, thereby facilitating other material moving components to take the folded cardboard 60. In addition, the bending support plate 331 is also provided with a limiting support block 336, and the setting position of the limiting support block 336 corresponds to the limiting piece 62 of the cardboard 60, so as to support the limiting piece 62 to prevent the limiting piece 62 from being bent.

[0059] like Figure 4 and Figure 5 As shown, preferably, the forming mechanism 310 is further provided with an upper supporting block 337 and an upper supporting cylinder 338, wherein the upper supporting cylinder 338 is fixedly connected to the forming carrier 330, and the upper supporting block 337 is transmission-connected to the piston rod of the upper supporting cylinder 338, thereby causing the upper supporting cylinder 338 to operate and drive the upper supporting block 337 to move upward, thereby squeezing the inner supporting portion 63 of the folded cardboard 60, so that it is folded and formed into a preset inner supporting shape.

[0060] Specifically, in order to support the inner supporting part 63 of the paperboard 60, an upper supporting block 337 can be provided, and the upper supporting cylinder 338 can be used to drive the upper supporting block 337 to move to a preset height, so that after the inner supporting part 63 is folded, it just abuts against the upper supporting block 337, so as to avoid the inner supporting part 63 from being deformed after being pressed down, which affects the final product quality of the inner supporting paperboard 60. In addition, in order to further fold the inner supporting part 63, the upper supporting block 337 can squeeze the inner supporting part 63 of the folded paperboard 60 again after the bending support plate 331 moves to both sides for a certain distance, so as to form a more accurate preset inner supporting folding shape, so as to avoid the inner supporting part 63 returning to its original position under the tension of the paperboard 60 after a certain period of time.

[0061] In addition, it is understandable that the re-folding and squeezing of the upper supporting block 337 can be set accordingly according to different parameters such as the material, hardness or thickness of the paperboard 60. For example, some paperboards 60 that are not easy to rebound and deform do not need to be folded and squeezed again, while some paperboards 60 that are easy to rebound and deform need to be folded and squeezed again to improve the folding strength of the inner supporting part 63 and prevent it from deformation.

[0062] like Figure 9 As shown, preferably, the folding assembly 300 is provided with a first folding portion 301, a second folding portion 302, a third folding portion 303 and a fourth folding portion 304 in sequence on the working table, so as to perform preset folding operations on the cardboards 60 to be processed with different folding requirements respectively.

[0063] Specifically, due to the different shapes of the cardboard 60 or the inner tray to be folded, different folding components 300 can be set for the folding and forming operation, so that there is no need to replace the lower pressing cutter head 320 and the forming carrier 330. Of course, according to the actual needs of the factory, if there are multiple models that are frequently used, multiple corresponding folding components 300 can be set for synchronous installation, and then the corresponding folding component 300 can be selected for production as needed. For factories with few models or those that do not need to frequently change models, only one set of folding components 300 can be installed for production. When it is necessary to produce the inner tray of other models of cardboard 60 later, the lower pressing cutter head 320 and the forming carrier 330 can be replaced again.

[0064] In addition, at the upper parts of the four edge positions of the forming carrier 330, cardboard 60 retaining bars or cardboard 60 limiting bars can also be provided to limit or block the cardboard 60 on the forming carrier 330 to prevent it from running off track.

[0065] For those skilled in the art, it is obvious that the present utility model is not limited to the details of the above exemplary embodiments, and the present utility model can be implemented in other specific forms without departing from the spirit or basic characteristics of the present utility model. Therefore, from any point of view, the embodiments should be regarded as exemplary and non-limiting. The scope of the present utility model is defined by the appended claims rather than the above description. Therefore, all changes falling within the meaning and scope of the equivalent elements of the claims are intended to be included in the present utility model.

Claims

1. A paper box inner tray folding and forming device, characterized in that: The invention comprises a folding assembly (300) installed on a work table, wherein the folding assembly (300) is provided with a forming mechanism (310) and a forming carrier (330), wherein the forming mechanism (310) is used to perform a folding and forming operation on a middle inner supporting portion (63) of a paperboard (60) to be processed, so that the middle inner supporting portion (63) of the paperboard (60) forms a preset inner supporting folding shape; the forming carrier (330) is used to support and limit the paperboard (60) to be processed, so that the paperboard (60) maintains a preset position; the forming mechanism (310) is provided with a downward pressing bracket (311), a downward pressing cylinder (312), and a downward pressing cylinder (313). 12), a downward pressing bearing (313) and a downward pressing blade head (320), the downward pressing bracket (311) is fixedly connected to the working table, the downward pressing cylinder (312) and the downward pressing bearing (313) are respectively installed on the downward pressing bracket (311), the downward pressing blade head (320) is movably connected to the downward pressing bracket (311) through the downward pressing bearing (313) and forms a transmission connection with the piston rod of the downward pressing cylinder (312), so that the downward pressing cylinder (312) is operated to drive the downward pressing blade head (320) to move a certain distance in the vertical direction, thereby performing a downward pressing and folding operation on the inner supporting part (63) of the cardboard (60) to be processed.

2. A paper box inner tray folding and forming device according to claim 1, characterized in that: The forming mechanism (310) is further provided with an adapter bracket (314), an adapter cylinder (315) and an adapter bearing (316); the adapter bracket (314) is fixedly connected to the guide shaft of the downward pressure bearing (313) and forms a transmission connection with the piston rod of the downward pressure cylinder (312); the adapter cylinder (315) and the adapter bearing (316) are respectively mounted on the adapter bracket (314); the downward pressure cutter head (320) is movably connected to the adapter bracket (314) via the adapter bearing (316) and forms a transmission connection with the piston rod of the adapter cylinder (315).

3. A paper box inner tray folding and forming device according to claim 2, characterized in that: The forming mechanism (310) is further provided with a pre-stressing plate (317), a pre-stressing bearing (318) and a pre-stressing spring (319); the pre-stressing bearing (318) is fixedly connected to the adapter bracket (314); the pre-stressing plate (317) is fixedly connected to the guide shaft of the pre-stressing bearing (318); the pre-stressing spring (319) is sleeved on the guide shaft of the pre-stressing bearing (318), one end of which abuts against the pre-stressing bearing (318) and the other end abuts against the pre-stressing plate (317).

4. A paper box inner tray folding and forming device according to claim 1, characterized in that: The pressing blade head (320) is provided with a folding cylinder (321), a folding blade holder (322) and a folding curved blade (323); the folding cylinder (321) is fixedly connected to the pressing blade head (320); the folding blade holder (322) is transmission-connected to a piston rod of the folding cylinder (321); the folding curved blade (323) is fixedly connected to the folding blade holder (322); the folding cylinder (321) is operated to push the folding curved blade (323) to move toward two ends of the pressing blade head (320), thereby causing the folding curved blade (323) to perform a folding operation on the inner supporting portion (63) of the paperboard (60) to move outward.

5. A paper box inner tray folding and forming device according to claim 4, characterized in that: The folding curved knife (323) is provided with a triangular knife tip (327), and the triangular knife tip (327) is used to perform a folding operation on the inner supporting portion (63) of the paperboard (60), and the inclination angle of the triangular knife tip (327) is set to 40 degrees to 45 degrees.

6. A paper box inner tray folding and forming device according to claim 4, characterized in that: One end of the folding curved knife (323) is fixedly connected to the folding knife holder (322), and the other end thereof is provided with a first curved knife (324) and a second curved knife (325), and a curved knife gap (326) is provided between the first curved knife (324) and the second curved knife (325), and the curved knife gap (326) is used to avoid the limiting piece (62) on the paperboard (60), so that the limiting piece (62) will not be folded by the folding curved knife (323) and remains in the same plane as the paperboard (60).

7. A paper box inner tray folding and forming device according to claim 4, characterized in that: The forming carrier (330) is provided with a bending support plate (331), the bending support plate (331) being mounted on the forming carrier (330) and provided with a bending bevel (332) matching the folding curved knife (323), so that the inner supporting portion (63) of the paperboard (60) is folded between the bending bevel (332) and the folding curved knife (323) under the folding operation of the folding curved knife (323) to form a folded shape.

8. A paper box inner tray folding and forming device according to claim 7, characterized in that: The forming mechanism (310) is further provided with a pallet guide rail (333), a pallet slider (334) and a pallet cylinder (335); the pallet guide rail (333) and the pallet cylinder (335) are respectively fixedly connected to the forming carrier (330); the pallet slider (334) and the pallet guide rail (333) cooperate with each other to form a sliding connection; the bent pallet (331) is fixedly connected to the pallet slider (334) and is transmission-connected to the piston rod of the pallet cylinder (335), so that the pallet cylinder (335) operates and drives the bent pallet (331) to move laterally a certain distance.

9. A paper box inner tray folding and forming device according to claim 1, characterized in that: The molding mechanism (310) is further provided with an upper supporting pressing block (337) and an upper supporting cylinder (338), wherein the upper supporting cylinder (338) is fixedly connected to the molding carrier (330), and the upper supporting pressing block (337) is transmission-connected to the piston rod of the upper supporting cylinder (338).

10. An automated device, characterized in that: A paper box inner tray folding and forming device comprising any one of claims 1 to 9, used for folding and forming a paper box to form a desired inner tray shape.

Images