Packaging box folding mechanism and boxing production line

Abstract

The invention belongs to the technical field of packaging box production, and discloses a packaging box folding mechanism and a boxing production line. The packaging box folding mechanism comprises a feeding frame, a folding table, a grabbing assembly and a folding assembly. The feeding frame is used for storing paper sheets. The folding table is used for bearing paper sheets and is provided with a folding space; the grabbing assembly is arranged between the feeding frame and the folding table and used for carrying the paper sheets to the folding table and pressing the paper sheets into the folding space so that the side walls of the paper sheets can be bent. The folding assembly is used for extruding the side walls of the paper sheets so that part of the side walls of the paper sheets can be bent to form the packaging box. When the packaging box folding mechanism is used, the material grabbing assembly and the folding assembly sequentially run to automatically complete the folding operation of batch packaging boxes, so that the manual participation degree is reduced, the automation of the folding operation is improved, the forming efficiency and speed of the packaging boxes are improved, and the production cost is reduced. And therefore, batched products can be conveniently boxed in the follow-up process.

Description

Technical Field

[0001] The present invention relates to the technical field of packaging box production, in particular to a packaging box folding mechanism and a box packing production line. Background Art

[0002] As the outer packaging of the product, the packaging box can play a good role in protecting the product. Especially for thin products such as cosmetic contact lenses, it can effectively prevent the product from being contaminated by other objects and ensure that the product can be used normally. The folding mechanism is one of the key equipment for the production of packaging boxes. The folding mechanism can fold the paper to form a packaging box of the corresponding shape and size.

[0003] In the prior art, the folding mechanism includes a machine platform for carrying paper sheets, which are continuously transported to the machine platform by a loading rack. Workers use handheld tools at the machine platform to fold the paper sheets at designated positions, thereby folding the paper sheets into packaging boxes.

[0004] However, the above folding process relies heavily on manual operation and has a low degree of automation, resulting in low packaging box forming efficiency and slow speed in batch packaging box forming operations, which affects the efficiency of product box packing operations. Summary of the invention

[0005] The purpose of the present invention is to provide a packaging box folding mechanism and a box packaging production line, which solves the problem in the prior art that the degree of automation in the packaging box forming operation is low, resulting in low forming efficiency and slow speed, which affects the efficiency of product box packaging operations.

[0006] To achieve this object, the present invention adopts the following technical solutions:

[0007] The present invention provides a packaging box folding mechanism, which comprises:

[0008] Loading rack, used to store paper pieces;

[0009] A folding table, used for carrying paper sheets, wherein the folding table has a folding space corresponding to the paper sheets;

[0010] A material grabbing assembly is arranged between the loading rack and the folding table, and is used to carry the paper sheet to the folding table and press the paper sheet into the folding space so that the side wall of the paper sheet is bent;

[0011] The folding assembly is used for pressing the side wall of the paper sheet so that part of the side wall of the paper sheet is bent to form a packaging box.

[0012] Optionally, the material grabbing assembly comprises:

[0013] Grab rack;

[0014] A mounting frame, rotatably connected to the grabbing frame;

[0015] A material grabbing member, rotatably connected to the mounting frame and used for grabbing paper sheets;

[0016] A first driving member connected to the mounting frame to drive the mounting frame to approach the loading frame or the folding table;

[0017] The second driving member is connected to the material grabbing member to drive the material grabbing member to drive the paper sheet to rotate toward the folding platform.

[0018] Optionally, the folding assembly comprises:

[0019] Two folding frames are arranged opposite to each other, and the folding frames are rotatably connected with a folding part, and a folding station for accommodating the folding table is formed between the two folding parts. The folding frame is provided with a folding driving member connected with the folding part, and the folding driving member is used to drive the folding part to rotate so as to squeeze the paper sheet carried by the folding table.

[0020] Optionally, the folding component further comprises:

[0021] Support frame;

[0022] A support block is slidably connected to the support frame, and the thickness of the support block is equal to the inner thickness of the packaging box;

[0023] A support driving member is connected to the support block to drive the support block to extend into the interior of the paper sheet pressed into the folding space.

[0024] Optionally, the folding component further comprises:

[0025] Glue rack;

[0026] A gluing head, slidably connected to the gluing frame, and used for gluing the paper sheets carried on the folding table;

[0027] A glue-coating driving member is connected to the glue-coating head to drive the glue-coating head to move relative to the folding table.

[0028] Optionally, the packaging box folding mechanism further includes:

[0029] A feeding rack, the feeding rack is used to convey packaging boxes;

[0030] A hot pressing component is arranged on the feeding rack to perform hot pressing on the packaging box.

[0031] Optionally, the feeding rack includes a feeding slide, and the feeding slide is provided with a limiting plate, and the bottom wall of the limiting plate and the top wall of the feeding slide form a sliding space for the packaging box to slide.

[0032] Optionally, the folding assembly has a folding station, and the packaging box folding mechanism further includes:

[0033] A translation driving member is connected to the folding table to drive the folding table to slide back and forth between the material grabbing assembly and the folding station.

[0034] Optionally, the packaging box folding mechanism further includes:

[0035] A lifting drive component is connected to the folding table to drive the folding table to lift.

[0036] In a second aspect, the present invention further provides a cartoning production line, which comprises:

[0037] The packaging box folding mechanism as described in any one of the first aspects;

[0038] The box loading mechanism is used to put the product into the box.

[0039] Beneficial effects of the present invention:

[0040] First, when folding a packaging box, a large number of paper sheets are orderly arranged in the loading rack, and the paper sheets are grabbed by the grabbing assembly in turn. Each time the grabbing assembly grabs a paper sheet, it can place the paper sheet on the folding table and press the paper sheet down into the folding space. The side wall of the folding space squeezes the paper sheet so that the side wall of the squeezed paper sheet is bent, and the folding assembly can squeeze the side wall of the paper sheet so that part of the side wall of the paper sheet is bent to form the bottom wall of the packaging box, so that the packaging box can be folded. In this way, when the packaging box folding mechanism is used, the operator only needs to place the paper sheets in batches in the loading rack, and the grabbing assembly and the folding assembly can automatically complete the folding operation of the batch packaging box by running in turn, thereby reducing the degree of manual participation, improving the automation of the folding operation, and then improving the molding efficiency and speed of the packaging box, so that the subsequent boxing operation of the batch products can be completed.

[0041] Secondly, when the cartoning production line is in use, the packaging box folding mechanism can automatically mass-produce packaging boxes, and can deliver multiple packaging boxes to the cartoning mechanism in sequence, so that multiple products can be mass-cartoned through the cartoning mechanism, thereby effectively improving the degree of automation and production efficiency of the cartoning production line. BRIEF DESCRIPTION OF THE DRAWINGS

[0042] Figure 1 is a structural schematic diagram of a packaging box folding mechanism in an embodiment of the present invention;

[0043] Figure 2 It is a structural schematic diagram of a material grabbing assembly and a folding table of a packaging box folding mechanism in an embodiment of the present invention;

[0044] Figure 3 It is a structural schematic diagram of a folding assembly and a feeding rack of a packaging box folding mechanism in an embodiment of the present invention.

[0045] In the figure:

[0046] 1. Loading rack; 11. Loading frame; 12. Column; 13. Limiting strip; 14. Adjusting rack;

[0047] 2. Folding table; 21. Limiting part;

[0048] 3. Material grabbing assembly; 31. Material grabbing frame; 32. Mounting frame; 33. Material grabbing member; 34. First driving member; 35. Second driving member;

[0049] 4. Folding assembly; 41. Folding frame; 42. Folding part; 43. Folding drive member; 44. Support frame; 45. Support block; 46. Support drive member; 47. Gluing frame; 48. Gluing head; 49. Gluing drive member;

[0050] 5. Paper;

[0051] 6. Feeding rack; 61. Limiting plate;

[0052] 7. Hot pressing components;

[0053] 8. Translation drive member; 81. Camera detection module;

[0054] 9. Lifting drive parts. DETAILED DESCRIPTION

[0055] The present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. It is to be understood that the specific embodiments described herein are only used to explain the present invention, rather than to limit the present invention. It should also be noted that, for ease of description, only parts related to the present invention, rather than all structures, are shown in the accompanying drawings.

[0056] In the description of the present invention, unless otherwise clearly specified and limited, the terms "connected", "connected", and "fixed" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0057] In the present invention, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may include that the first and second features are in direct contact, or may include that the first and second features are not in direct contact but are in contact through another feature between them. Moreover, a first feature being "above", "above" and "above" a second feature includes that the first feature is directly above and obliquely above the second feature, or simply indicates that the first feature is higher in level than the second feature. A first feature being "below", "below" and "below" a second feature includes that the first feature is directly below and obliquely below the second feature, or simply indicates that the first feature is lower in level than the second feature.

[0058] In the description of this embodiment, the terms "upper", "lower", "left", "right" and other directions or positional relationships are based on the directions or positional relationships shown in the drawings, and are only for the convenience of description and simplification of operation, rather than indicating or implying that the device or element referred to must have a specific direction, be constructed and operate in a specific direction, and therefore cannot be understood as limiting the present invention. In addition, the terms "first" and "second" are only used to distinguish in the description and have no special meaning.

[0059] The embodiment of the invention discloses a packaging box folding mechanism and a box packing production line.

[0060] Reference Figure 1 The packaging box folding mechanism includes a loading rack 1, a folding platform 2, a material grabbing assembly 3 and a folding assembly 4. The loading rack 1 is used to store paper sheets 5; the folding platform 2 is used to carry paper sheets 5, and the folding platform 2 has a folding space corresponding to the paper sheets 5; the material grabbing assembly 3 is arranged between the loading rack 1 and the folding platform 2, and the material grabbing assembly 3 is used to carry the paper sheets 5 to the folding platform 2 and press the paper sheets 5 into the folding space so that the side walls of the paper sheets 5 are bent; the folding assembly 4 is used to press the side walls of the paper sheets 5 so that part of the side walls of the paper sheets 5 are bent to form a packaging box.

[0061] Specifically, the loading frame 1 includes a loading frame 11 and a plurality of columns 12 arranged on the loading frame 11. The columns 12 are fixed on the ground. The loading frame 11 can accommodate a plurality of long strips of paper sheets 5. The loading frame 11 is also in the shape of a long strip, so that the plurality of paper sheets 5 can be arranged in sequence inside the loading frame 11 along the thickness direction thereof. The loading frame 11 is bent downward on the side close to the folding table 2 so that the paper sheets 5 close to the folding table 2 can gradually move toward the folding table 2. A limit bar 13 is arranged above the inclined section. The limit bar 13 is located in the middle of the loading frame 11. The bottom wall thereof can slide and fit with the top wall of the paper sheet 5 to limit the movement of the paper sheet 5. The limit bar 13 is fixed to the loading frame 11 through an adjustment frame 14. The adjusting frame 14 includes a mounting plate, on which a screw is rotatably connected, a handle wheel is provided on the top of the screw, an adjusting block is threadedly connected to the screw, the adjusting block is slidably connected to the mounting plate and fixedly connected to the top wall of the limit strip 13 through a connecting rod and a connecting block, so that the spacing between the limit strip 13 and the feeding frame 11 can be adjusted through the adjusting frame 14, so that the limit strip 13 can adapt to paper pieces 5 of various sizes.

[0062] The folding table 2 is arranged corresponding to the inclined section of the loading frame 11, and it can slide between different stations or be fixed at different positions. A plurality of limiting portions 21 are convexly provided on the top wall of the folding table 2, and a folding space is formed between the plurality of limiting portions 21, and the depth of the folding space is the same as the thickness that the packaging box needs to reach. In this embodiment, the folding table 2 is in the shape of a rectangular parallelepiped, and a limiting portion 21 is protruded at each of the four corners of its top wall, and the inner side of the limiting portion 21 is inclined to facilitate the insertion of the paper sheet 5 into the folding space.

[0063] The grabbing assembly 3 is used to grab the paper sheet 5 located in the inclined section of the loading rack 1, and place the paper sheet 5 in the folding table 2 in the correct direction. The grabbing assembly 3 grabs the middle of the paper sheet 5, and after placing the paper sheet 5 on the folding table 2, presses the paper sheet 5 downward, so that the middle of the paper sheet 5 is squeezed, and the edge of the middle is in contact with the limiting portion 21. At this time, the side wall of the paper sheet 5 will bend upward, and the bottom wall of the paper sheet 5 will be pressed into the folding space. At this time, the first folding can be completed, and the grabbing assembly 3 can be reset to grab the next paper sheet 5. The folding table 2 moves into the folding assembly 4, or the folding assembly 4 moves to the folding table 2. When the folding assembly 4 is close to the folding table 2, the folding assembly 4 can squeeze the side wall of the paper sheet 5, so that the side wall of the paper sheet 5 continues to bend inward to form the bottom wall of the packaging box, and the part overlapping with the limiting portion 21 is used as the side wall of the packaging box, and the second folding of the paper sheet 5 can be completed. The specific bending angles of the two sides can be designed according to the actual shape of the packaging box to be formed. In this embodiment, the two bending angles are both 90°.

[0064] When folding the packaging box, a large number of paper pieces 5 are arranged in order in the loading rack 1, and the grabbing assembly 3 grabs the paper pieces 5 in turn. Each time the grabbing assembly 3 grabs the paper pieces 5, it can place the paper pieces 5 on the folding table 2 and press the paper pieces 5 down into the folding space. The side walls of the folding space squeeze the paper pieces 5 so that the side walls of the squeezed paper pieces 5 are bent, and the folding assembly 4 can squeeze the side walls of the paper pieces 5 so that part of the side walls of the paper pieces 5 are bent to form the bottom wall of the packaging box, so that the packaging box can be folded. In this way, when the packaging box folding mechanism is used, the operator only needs to place the paper pieces 5 in batches in the loading rack 1, and the grabbing assembly 3 and the folding assembly 4 can automatically complete the folding operation of the batch packaging boxes by running in turn, thereby reducing the degree of manual participation, improving the automation of the folding operation, and then improving the molding efficiency and speed of the packaging box, so that the subsequent boxing operation of the batch products can be completed.

[0065] Reference Figure 2 Optionally, the material grabbing assembly 3 includes a material grabbing frame 31, a mounting frame 32, a material grabbing member 33, a first driving member 34, and a second driving member 35. The mounting frame 32 is rotatably connected to the material grabbing frame 31; the material grabbing member 33 is rotatably connected to the mounting frame 32 and is used to grab the paper sheet 5; the first driving member 34 is connected to the mounting frame 32 to drive the mounting frame 32 to approach the loading frame 1 or the folding table 2; the second driving member 35 is connected to the material grabbing member 33 to drive the material grabbing member 33 to drive the paper sheet 5 to rotate to the direction toward the folding table 2.

[0066] Specifically, the material grabbing frame 31 is U-shaped and fixed on the ground. A first driving member 34 is arranged at the opening of the material grabbing member 33. The first driving member 34 is a self-rotating driving shaft. The mounting frame 32 is directly arranged on the driving shaft. The driving shaft can drive the mounting frame 32 to rotate between the folding table 2 and the loading frame 1. A second driving member 35 is arranged at one end of the mounting frame 32 away from the material grabbing frame 31. The second driving member 35 also adopts a self-rotating driving shaft. The material grabbing member 33 can be arranged on the driving shaft. The material grabbing member 33 can be a suction cup or a mechanical clamp. In this embodiment, the material grabbing member 33 is a suction cup, which is fixed on the second driving member 35 through a fixing block. In order to improve the stability of grabbing the paper sheet 5, the material grabbing member 33 can be arranged at intervals, such as two or three, etc., which can be determined according to the size of the paper sheet 5, and the present invention does not limit it. The first driving member 34 and the second driving member 35 can also be replaced by a motor-driven shaft type transmission structure, which can be specifically limited according to the actual installation space and transmission requirements.

[0067] When transporting the paper sheet 5, first use the first driving member 34 to drive the mounting frame 32 and the material grabbing member 33 to approach the loading frame 11. Then, the suction cup of the material grabbing member 33 can adsorb one side of the paper sheet 5. At this time, the first driving member 34 drives the mounting frame 32 and the material grabbing frame 31 to approach the folding table 2. During the approaching process, the second driving member 35 drives the material grabbing member 33 to rotate to adjust the orientation of the paper sheet 5. When the material grabbing member 33 approaches the folding table 2, the paper sheet 5 is just right in front of the folding space of the folding table 2. Then, the first driving member 34 continues to drive the mounting frame 32 and the material grabbing member 33 to rotate. The material grabbing member 33 can place the paper sheet 5 on the folding table 2 and then press the paper sheet 5 into the folding space, so that the side wall of the paper sheet 5 forms a corresponding bend. In this way, the orientation of the paper sheet 5 is adjusted in real time during the transportation process of the paper sheet 5, and the paper sheet 5 is immediately pressed after the paper sheet 5 is placed, so that the transportation and folding processes can be carried out continuously, reducing pauses, so as to further improve the overall working efficiency.

[0068] Referring to Figures 1 to 3 , optionally, the folding assembly 4 includes two oppositely arranged folding frames 41. The folding frame 41 is rotatably connected with a folding part 42. A folding station for accommodating the folding table 2 is formed between the two folding parts 42. The folding frame 41 is provided with a folding driving member 43 connected to the folding part 42. The folding driving member 43 is used to drive the folding part 42 to rotate to squeeze the paper sheet 5 carried by the folding table 2.

[0069] Specifically, the folding frame 41 has a frame structure and is fixed on the ground. A folding driving member 43 is arranged on the top wall of the folding frame 41. The output end of the folding driving member 43 is fixedly provided with a folding part 42 in the shape of "Γ". The vertical section of the folding part 42 is connected to the folding driving member 43, and the horizontal section of the folding part 42 is used to squeeze the side wall of the paper sheet 5. The folding driving member 43 can drive the folding part 42 to rotate. The folding driving member 43 can be a rotary electric cylinder or a rotary air cylinder, etc. The present invention does not limit this. In order to better fold the paper sheet 5, the horizontal section of the folding part 42 is cylindrical, and this section can also rotate itself to reduce the friction during the squeezing process. A folding station is formed between the two folding parts 42. The folding table 2 can drive the paper sheet 5 to move into the folding station, or move the folding station to the folding table 2.

[0070] By providing two folding parts 42 to form a folding station, when the folding table 2 is at the folding station, at this time the paper sheet 5 is in a U shape, and the two folding parts 42 are located outside the two side walls of the paper sheet 5. Start the folding driving member 43 to drive the folding part 42 to rotate, and the folding part 42 squeezes the side wall of the paper sheet 5 so that the side wall of the paper sheet 5 forms a bend. In this way, when folding the side wall of the paper sheet 5, the two folding driving members 43 can be started successively, so that the two side walls of the paper sheet 5 are folded in sequence according to the forming sequence of the packaging box.

[0071] Optionally, the folding assembly 4 further includes a support frame 44, a support block 45 and a support driving member 46. The support block 45 is slidably connected to the support frame 44, and the thickness of the support block 45 is equal to the inner thickness of the packaging box; the support driving member 46 is connected to the support block 45 to drive the support block 45 to extend into the paper sheet 5 pressed into the folding space.

[0072] Specifically, in order to ensure the forming height of the packaging box, when the folding table 2 is in the folding station, the support block 45 will correspond to the folding space of the folding table 2, and the support block 45 is slidably connected to the support frame 44, and the support frame 44 is fixed on the ground. A linear drive module can be fixedly arranged on the support frame 44 as a support drive member 46 to drive the support block 45 to slide back and forth.

[0073] By providing the support block 45, when the paper sheet 5 is folded, the support driving member 46 is first used to drive the support block 45 to extend into the paper sheet 5. Then, after the side wall of the paper sheet 5 is folded, the side wall will directly press against the support block 45 to ensure that the side wall of the paper sheet 5 will not be pressed into the packaging box, and the thickness amplitude requirement of the formed packaging box can be ensured.

[0074] Optionally, the support block 45 includes a connecting portion and a supporting portion, the connecting portion is slidably connected to the supporting frame 44, the supporting portion is arranged at the front end of the connecting portion, and the supporting portion and the connecting portion may be an integrated structure. Two supporting portions may be arranged at intervals, a plurality of adsorption holes may be distributed on each supporting portion, an adsorption channel connected to the plurality of adsorption holes is arranged in the connecting portion, and the adsorption channel is connected to the vacuum pump.

[0075] After the side wall of the paper sheet 5 is bent and pressed against the supporting portion, the adsorption holes can adsorb the side wall of the paper sheet 5 , so that the side wall of the paper sheet 5 remains bent, thereby reducing the possibility of the side wall of the paper sheet 5 being reset.

[0076] Optionally, the folding assembly 4 further includes a gluing frame 47, a gluing head 48 and a gluing driving member 49. The gluing frame 47 is slidably connected to the gluing frame 47, the gluing head 48 is used to glue the paper sheet 5 carried on the folding table 2; the gluing driving member 49 is connected to the gluing head 48 to drive the gluing head 48 to move relative to the folding table 2.

[0077] Specifically, a gluing rack 47 is arranged at the position corresponding to the folding station. The gluing rack 47 is in an inverted U shape. A linear module is arranged on its cross arm as a gluing driving member 49. A gluing head 48 is arranged on the mover of the gluing driving member 49. The gluing head 48 is connected to the glue injection equipment through a hose.

[0078] By setting up the glue coating head 48, after the side wall of one side of the paper sheet 5 is bent, the side wall is adsorbed and fixed by the adsorption holes of the support part. At this time, the glue coating drive part 49 is started to drive the glue coating head 48 to move relative to the paper sheet 5. When the glue coating head 48 passes through the paper sheet 5, the glue coating head 48 can apply glue on the side wall of the paper sheet 5, and then the side wall on the other side of the paper sheet 5 is bent, and the overlapping parts of the two side walls can be adhered together under the action of the glue.

[0079] Optionally, the packaging box folding mechanism further includes a feeding rack 6 and a hot pressing assembly 7. The feeding rack 6 is used to convey the packaging box; the hot pressing assembly 7 is arranged on the feeding rack 6 to perform hot pressing on the packaging box.

[0080] Specifically, the feeding rack 6 is in the shape of a long strip, one end of which corresponds to the folding station, and the other end extends to the box loading mechanism, which is used to feed the product into the packaging box. A hot pressing assembly 7 is arranged on the side of the feeding rack 6 close to the folding station. The hot pressing assembly 7 can heat the passing packaging box through a resistance wire and can squeeze the packaging box through a pressure roller to ensure that the shape of the packaging box can remain stable. A fan can also be arranged in the hot pressing assembly 7 to quickly cool the packaging box that has completed the hot pressing.

[0081] By setting up a feeding rack 6 and a hot pressing assembly 7, when the side wall of the paper sheet 5 is bent to form a packaging box, the packaging box is sent to the feeding rack 6 for transportation. When the packaging box passes through the hot pressing assembly 7, the hot pressing assembly 7 heats the packaging box. On the one hand, the glue can be fully melted, and the side wall of the packaging box can be ensured to be well connected by the glue through extrusion. On the other hand, the packaging box can be appropriately softened, and the stability of the packaging box can be tested through extrusion to ensure that the quality of the packaging box is qualified. The packaging box that has passed the hot pressing assembly 7 is sent to the box loading mechanism to wait for the product to be loaded.

[0082] Optionally, the feeding rack 6 includes a feeding slide, and the feeding slide is provided with a limit plate 61, and the bottom wall of the limit plate 61 and the top wall of the feeding slide form a sliding space for the packaging box to slide.

[0083] Specifically, the feeding rack 6 adopts non-power transmission, and the feeding rack 6 only forms a sliding space without a driving component. By forming the sliding space, when the packaging boxes pass through the hot pressing assembly 7 in sequence, the subsequent packaging boxes push the packaging boxes in the sliding space to continuously move toward the direction of the box loading mechanism, thereby saving energy consumption and improving the energy-saving effect in the overall operation process.

[0084] Optionally, the packaging box folding mechanism further comprises a translation driving member 8. The translation driving member 8 is connected to the folding table 2 to drive the folding table 2 to slide back and forth between the material grabbing assembly 3 and the folding station.

[0085] Specifically, the translation drive member 8 can adopt a linear motion module, which is fixed on the ground, and the folding table 2 is fixed on the translation drive member 8. The translation drive member 8 can drive it to reciprocate, so that the folding station and other structures can remain in place, and a discharge station can be set at a position close to the grabbing component 3. A camera detection module 81 can also be set at the discharge station, and its detection end faces the folding table 2 to detect in real time whether the folding table 2 is carrying materials.

[0086] By setting up a translation drive 8, the folding table 2 can be driven to slide back and forth between the folding station and the grabbing assembly 3, so as to quickly drive the U-shaped paper sheet 5 into the folding station for subsequent folding. At this time, the grabbing assembly 3 continues to grab new paper sheets 5, so that each structure can move in an orderly manner, thereby reducing the pause of each structure, so as to effectively improve the overall production efficiency.

[0087] Optionally, the packaging box folding mechanism further includes a lifting driving member 9. The lifting driving member 9 is connected to the folding platform 2 to drive the folding platform 2 to rise and fall.

[0088] Specifically, a lifting drive member 9 is provided below the folding table 2 . The lifting drive member 9 may be a cylinder, a cylinder body of which is fixed on a mover of the translation drive member 8 , and a piston rod is fixedly connected to the bottom wall of the folding table 2 .

[0089] By setting up the lifting drive member 9, the folding table 2 can be driven to rise and fall, so that when the paper sheet 5 is pressed into the folding space, the lifting drive member 9 can extend to push the folding table 2 and the paper sheet 5 to form a relative movement, thereby making the relative movement speed between the paper sheet 5 and the folding table 2 larger, to ensure that the paper sheet 5 can be smoothly pressed into the folding space.

[0090] The cartoning production line comprises a cartoning mechanism and a packaging box folding mechanism as in the above-mentioned embodiment. The cartoning mechanism is used to put the product into the packaging box.

[0091] When the cartoning production line is in use, the packaging box folding mechanism can automatically mass-produce packaging boxes, and can deliver multiple packaging boxes to the cartoning mechanism in sequence, so that multiple products can be mass-cartoned by the cartoning mechanism, thereby effectively improving the automation level and production efficiency of the cartoning production line.

[0092] Obviously, the above embodiments of the present invention are merely examples for clearly illustrating the present invention, and are not intended to limit the embodiments of the present invention. For those skilled in the art, various obvious changes, readjustments and substitutions can be made without departing from the protection scope of the present invention. It is not necessary and impossible to list all the embodiments here. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the claims of the present invention.

Claims

1. A packaging box folding mechanism, characterized in that: include: A loading rack (1) for storing paper sheets (5); A folding table (2) for carrying a paper sheet (5), wherein the folding table (2) has a folding space corresponding to the paper sheet (5); A material grabbing assembly (3) is arranged between the loading rack (1) and the folding platform (2), and the material grabbing assembly (3) is used to carry the paper sheet (5) to the folding platform (2) and press the paper sheet (5) into the folding space so that the side wall of the paper sheet (5) is bent; The folding assembly (4) is used for pressing the side wall of the paper sheet (5) so that part of the side wall of the paper sheet (5) is bent to form a packaging box.

2. The packaging box folding mechanism according to claim 1, characterized in that: The material grabbing assembly (3) comprises: Grab rack (31); A mounting frame (32) rotatably connected to the material grabbing frame (31); A material grabbing member (33) rotatably connected to the mounting frame (32) and used for grabbing a paper sheet (5); A first driving member (34) connected to the mounting frame (32) to drive the mounting frame (32) to approach the loading frame (1) or the folding table (2); The second driving member (35) is connected to the material grabbing member (33) to drive the material grabbing member (33) to drive the paper sheet (5) to rotate in a direction toward the folding platform (2).

3. The packaging box folding mechanism according to claim 1, characterized in that: The folding assembly (4) comprises: Two folding frames (41) are arranged opposite to each other, the folding frames (41) are rotatably connected with a folding portion (42), a folding station for accommodating the folding table (2) is formed between the two folding portions (42), the folding frames (41) are provided with a folding driving member (43) connected with the folding portion (42), the folding driving member (43) is used to drive the folding portion (42) to rotate so as to squeeze the paper sheet (5) carried by the folding table (2).

4. The packaging box folding mechanism according to claim 3, characterized in that: The folding assembly (4) further comprises: Support frame (44); A support block (45) is slidably connected to the support frame (44), and the thickness of the support block (45) is equal to the inner thickness of the packaging box; A support driving member (46) is connected to the support block (45) to drive the support block (45) to extend into the interior of the paper sheet (5) pressed into the folding space.

5. The packaging box folding mechanism according to claim 3, characterized in that: The folding assembly (4) further comprises: Glue coating rack (47); A gluing head (48) is slidably connected to the gluing frame (47), and the gluing head (48) is used to apply glue to the paper sheet (5) carried on the folding table (2); A glue coating driving member (49) is connected to the glue coating head (48) to drive the glue coating head (48) to move relative to the folding table (2).

6. The packaging box folding mechanism according to any one of claims 1 to 5, characterized in that: The packaging box folding mechanism also includes: A feeding rack (6), the feeding rack (6) being used for conveying packaging boxes; A hot pressing component (7) is arranged on the feeding rack (6) to perform hot pressing on the packaging box.

7. The packaging box folding mechanism according to claim 6, characterized in that: The feeding rack (6) comprises a feeding slide, and the feeding slide is provided with a limiting plate (61), and the bottom wall of the limiting plate (61) and the top wall of the feeding slide form a sliding space for the packaging box to slide.

8. The packaging box folding mechanism according to any one of claims 1 to 5, characterized in that: The folding assembly (4) has a folding station, and the packaging box folding mechanism also includes: A translation driving member (8) is connected to the folding table (2) to drive the folding table (2) to slide back and forth between the material grabbing assembly (3) and the folding station.

9. The packaging box folding mechanism according to any one of claims 1 to 5, characterized in that: The packaging box folding mechanism also includes: A lifting drive member (9) is connected to the folding platform (2) to drive the folding platform (2) to lift and lower.

10. Cartoning production line, characterized in that: include: The packaging box folding mechanism according to any one of claims 1 to 9; The box loading mechanism is used to put the product into the box.

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