Automatic folding and pasting machine

Abstract

The utility model relates to the field of packaging box processing equipment, in particular to an automatic folding and pasting machine, which is used for folding and dispensing flat plate bodies of packaging boxes and comprises a conveying belt, a conveying main supporting plate and a folding module, a plurality of carriers are arranged on the surface of the conveying belt, the width of the inside of each carrier is the width of the bottom surface, and the conveying main supporting plate is responsible for plane supporting of the rear end face and the front face. The folding module comprises a guide lug glue spraying assembly, a vertical folding assembly and a forming glue spraying assembly. The conveying belt drives the packaging box flat plate body on the carrier to sequentially pass through the guide lug glue spraying assembly, the vertical folding assembly and the forming glue spraying assembly to conduct folding and glue dispensing procedures of different parts. According to the utility model, the procedures of folding and pasting the flat plate body of the packaging box on an assembly line are realized, and the working efficiency of dispensing and folding the packaging box is greatly improved.

Description

Technical Field

[0001] The utility model relates to the field of packaging box processing equipment, and particularly relates to a folding and gluing machine for packaging boxes. Background Art

[0002] At present, for the folding and gluing process of packaging boxes, glue is first applied to the parts of the packaging box that need to be pasted, and then the folding machine is used to fold and paste the parts that need to be connected. However, since the folding machine can only fold one packaging box completely before folding the next one, the overall working efficiency is low and cannot meet the needs of customers.

[0003] The technical problem to be solved by this application is: how to improve the working efficiency of glue application and folding of packaging boxes. Content of the Utility Model

[0004] In order to overcome the deficiencies of the prior art, the purpose of the utility model is to provide an automatic folding and gluing machine.

[0005] The technical solution adopted by the utility model is: an automatic folding and gluing machine for folding and applying glue to a flat body of a packaging box. The flat body of the packaging box is composed of a front surface, a bottom surface, a left side surface, a right side surface, two front ears, two rear ears, two side ears, a front end surface, a rear end surface, and an insertion ear. It includes a conveyor belt, a main conveyor support plate, and a folding module. A number of carriers are provided on the surface of the conveyor belt, and the width inside the carrier is the width of the bottom surface. The main conveyor support plate is responsible for planar support of the rear end surface and the front surface. The folding module includes a guide ear glue application component, a vertical folding component, and a forming glue application component through which the carrier passes in sequence. The guide ear glue application component includes an ear punching structure, a guide ear rod, and a guide ear glue applicator. The guide ear rod is arranged on one side of the conveyor belt. The ear punching structure includes an ear punching driving element and an ear punching rod. The ear punching driving element drives the ear punching rod to make an arc-shaped movement. The ear punching rod drives the rear ear into the gap between the carrier and the guide ear rod. The guide ear glue applicator applies glue to the rear ear or the rear end surface. The vertical folding component includes a guide large page rod and an end surface folding structure. The end surface folding structure includes an end surface horizontal pressing head. The guide large page rod guides the rear end surface to one side of the end surface horizontal pressing head. The end surface horizontal pressing head presses the rear end surface against the rear ear. The forming glue application component includes a forming glue applicator, a side ear folding part, and a side ear folding driving element. The side ear folding driving element drives the side ear folding part to press the side ear against the other side ear. The forming glue applicator applies glue to the front surface or the side ear.

[0006] When the flat body of the packaging box is placed in the carrier manually or by a manipulator, since the width of the carrier is the width of the bottom surface, the left and right sides of the carrier will fold up. Passing through the ear-guide glue spraying assembly, the ear-bar drives the rear ear into the gap between the ear-bar and the carrier in a rotational manner to complete the folding of the rear ear. The large-page guide bar raises the rear end surface so that an acute angle is formed between the rear end surface and the rear ear. Since the ear-guide dispenser applies glue to the rear ear or the rear end surface, and then the transverse pressing head of the end surface presses the rear end surface against the rear ear, the rear end surface and the rear ear are adhesively connected and the rear end surface folds up. The side-ear folding driving element drives the side-ear folding piece to press the side ear against the other side ear, so that an included angle is formed between the side ear and the left or right side surface.

[0007] In some embodiments, there is a preforming assembly which includes a preforming rod, a front connecting rod, a rear connecting rod and a feeding pressure wheel. The preforming rod is arranged above the carrier, the distance between the two preforming rods is not greater than the width of the flat body of the packaging box, and the two ends of the preforming rod are respectively connected to the front connecting rod and the rear connecting rod through corresponding connecting blocks. A separating seat is fixedly arranged between every two preforming rods, and the separating seat is arranged on the front connecting rod or the rear connecting rod. The feeding pressure wheel is fixedly connected to the separating seat, and the feeding pressure wheel rotates on the flat body of the packaging box.

[0008] In some embodiments, the ear-guide glue spraying assembly includes a large-page pressing plate. There is a gap for passing through in the front between the large-page pressing plate and the main conveying support plate. A large-page guide hole is provided on one side of the main conveying support plate close to the conveyor belt. The large-page guide rod is suspended above the large-page guide hole. One end of the large-page guide rod close to the large-page pressing plate is arranged at a position lower than the large-page pressing plate, and the other end is arranged at a position higher than the large-page pressing plate.

[0009] In some embodiments, the ear-punching structure is arranged on the ear-guide glue spraying seat. The ear-punching structure includes an ear-punching connecting piece and an ear-punching rotating seat. The ear-bar is arranged in an "L" shape. The fixed end of the ear-punching driving element is rotatably connected to the ear-guide glue spraying seat, and the output end is rotationally connected to the ear-punching connecting piece with a limit. The ear-punching rotating seat is rotationally limited on the ear-guide glue spraying seat. The ear-punching connecting piece is fixedly sleeved on the ear-punching rotating seat, and the ear-bar is fixedly connected to the outer wall of the ear-punching rotating seat.

[0010] In some embodiments, the side-ear folding driving element is obliquely arranged above the conveyor belt, and one side of the side-ear folding piece away from the side-ear folding driving element is set to be a right angle.

[0011] In some embodiments, a limiting plate is fixedly arranged on one side of the main conveying support plate close to the conveyor belt, and there are gaps for the rear end surface and the front surface to pass through between the limiting plate and the carrier.

[0012] In some embodiments, the forming glue spraying assembly includes a partition plate, which is arranged at one end of the limiting plate close to the forming glue spraying assembly. There is an overlapping part between the partition plate and the limiting plate, and a gap allowing forward movement is provided in the overlapping part. One end of the partition plate close to the limiting plate is provided with a fixedly connected partition inclined surface, and the distance between the partition inclined surface and the carrier gradually increases from the limiting plate to the partition plate direction.

[0013] In some embodiments, a folding surface structure is included. The folding surface structure is arranged on the side of the partition plate away from the carrier. The bottom end of the partition plate is higher than the flat body of the packaging box. The folding surface structure includes a folding surface pressing wheel and a folding surface rod. One end of the folding surface rod close to the partition plate is an L-shaped rod. The height of the folding surface pressing wheel or the folding surface rod from the main conveying support plate is not lower than the height of the front side from the main conveying support plate respectively.

[0014] In some embodiments, the end face folding structure includes an end face pressing head, which is arranged above one end of the bottom surface close to the rear end face. The end face horizontal pressing head moves close to or away from the bottom surface. The end face pressing head and the end face horizontal pressing head jointly clamp the rear ear and the rear end face.

[0015] In some embodiments, the preforming assembly includes a front connecting rod, a rear connecting rod and a feeding pressing wheel. Both ends of the preforming rod are fixedly connected to the front connecting rod and the rear connecting rod respectively through corresponding connecting blocks. A partition seat is fixedly arranged for every two preforming rods. The partition seat is arranged on the front connecting rod or the rear connecting rod. The feeding pressing wheel is fixedly connected to the partition seat, and the feeding pressing wheel rotates on the flat body of the packaging box.

[0016] The beneficial effects of the present utility model are as follows:

[0017] Through the cooperation of the conveyor belt and each folding assembly, the flat body of the packaging box sequentially passes through the assemblies for folding different parts on the flat body of the packaging box, completing the processes of folding and pasting the flat body of the packaging box on the assembly line, greatly improving the working efficiency of glue application and folding of the packaging box. The mutual cooperation of each fixed and moving part increases the stability and operability. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 is a schematic diagram of the overall structure of the present utility model;

[0019] Figure 2 is a schematic diagram of the structure of the flat body of the packaging box;

[0020] Figure 3 is a schematic diagram of the structure of the preforming assembly;

[0021] Figure 4 is a schematic diagram of the structure of the guide ear glue spraying assembly;

[0022] Figure 5 is a schematic diagram of the structure of the guide large page rod;

[0023] Figure 6 It is a schematic structural diagram of a vertical folding component;

[0024] Figure 7 is Figure 1 An enlarged schematic diagram of the structure of label A in the figure;

[0025] Figure 8 is Figure 1 An enlarged schematic diagram of the structure of label B in the figure;

[0026] Figure 9 It is a schematic structural diagram of a folding surface structure;

[0027] Figure 10 It is a schematic structural diagram of a folding surface rod;

[0028] Figure 11 It is a schematic diagram of the folding change of the flat body of the packaging box;

[0029] The labels in the figure correspond to the names as follows: 1. Flat body of the packaging box; 2. Conveyor module; 3. Pre-forming component; 4. Guide ear gluing component; 5. Vertical folding component; 6. Box pressing component; 7. Forming gluing component; 10. Front side; 11. Bottom surface; 12. Left side surface; 13. Right side surface; 14. Front ear; 15. Rear ear; 16. Side ear; 17. Front end face; 18. Rear end face; 19. Insert ear; 20. Carrier; 21. Conveyor frame; 22. Conveyor belt; 24. Main conveyor support plate; 25. Auxiliary conveyor support plate; 26. Limit plate; 30. Separation seat; 31. Front connecting rod; 32. Rear connecting rod; 33. Pre-forming rod; 34. First fixing seat; 35. Second fixing seat; 36. Feeding pressure wheel; 37. Linear adjustment element; 38. Lifting adjustment seat; 39. Matching adjustment seat; 41. Guide ear gluing seat; 42. Pressing large page plate; 43. Ear punching structure; 44. Guide ear rod; 45. Guide ear dotting machine; 431. Ear punching rotating seat; 432. Ear punching driving element; 433. Ear punching rod; 434. Ear punching connecting piece; 51. Guide large page rod; 52. End face lower pressing head; 53. End face lower pressing driving element; 54. End face horizontal pressing head; 55. End face horizontal pressing driving element; 61. Box pressing driving element; 62. Box pressing mold; 71. Separation plate; 72. Forming gluing machine; 73. Side ear folding piece; 74. Side ear folding driving element; 75. Folding surface pressure wheel; 76. Folding surface rod; 761. L-shaped rod; 762. Straight rod. Detailed implementation mode

[0030] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.

[0031] Please refer to Figure 1 and Figure 2 , the present invention provides a technical solution: an automatic folding carton gluing machine, which includes a conveying module 2 and a folding module. This embodiment is used to fold and apply glue to the flat carton body 1 to form a state that can be fed. The flat carton body 1 is composed of a front surface 10, a bottom surface 11, a left side surface 12, a right side surface 13, two front ears 14, two rear ears 15, two side ears 16, a front end surface 17, a rear end surface 18, and an insertion ear 19. The bottom surface 11 is arranged in the middle position, and the four sides of the bottom surface 11 of the flat carton body 1 are respectively connected to the left side surface 12, the right side surface 13, the front end surface 17, and the rear end surface 18.

[0032] Please refer to Figure 1 , the conveying module 2 includes a conveying frame 21, a conveyor belt 22, a conveying driving element, a main conveying support plate 24, and a secondary conveying support plate 25. The conveying driving element is a combination of a motor and a reducer. The conveying driving element drives the conveyor belt 22 to rotate in a limited manner on the conveying frame 21. A plurality of carriers 20 are arranged on the surface of the conveyor belt 22. The carrier 20 is composed of two baffles arranged in a normal direction to the axial direction of the conveyor belt 22. The widths of the two baffles of the same carrier 20 are the same as the width of the bottom surface 11 of the flat carton body 1. The flat carton body 1 is placed in the carrier 20. The conveyor belt 22 is arranged between the main conveying support plate 24 and the secondary conveying support plate 25. The main conveying support plate 24 and the secondary conveying support plate 25 are responsible for supporting the rear and front ends of the bottom surface 11 of the flat carton body 1.

[0033] The folding module includes a preforming assembly 3, an ear spraying and gluing assembly 4, a vertical folding assembly 5, a forming spraying and gluing assembly 7, and a box pressing assembly 6. The conveying module 2 drives the flat carton body 1 to pass through the preforming assembly 3, the ear spraying and gluing assembly 4, the vertical folding assembly 5, and the forming spraying and gluing assembly 7 in sequence.

[0034] Please refer to Figure 3, the preforming assembly 3 includes a front connecting rod 31, a rear connecting rod 32, a preforming rod 33, a first fixing seat 34, a second fixing seat 35 and a feeding pressure wheel 36. The front connecting rod 31 is arranged on the conveying auxiliary support plate 25, and the rear connecting rod 32 is arranged on the conveying main support plate 24. Both ends of several preforming rods 33 are fixedly connected to the front connecting rod 31 and the rear connecting rod 32 respectively through corresponding connecting blocks. The second fixing seat 35 is fixedly connected to the conveying auxiliary support plate 25, and the first fixing seat 34 is fixedly connected to the conveying main support plate 24. A plurality of spacer seats 30 are sleeved on the outer wall of the front connecting rod 31. On the front connecting rod 31, a spacer seat 30 is arranged at one end close to the second fixing seat 35, and a spacer seat 30 is fixedly arranged for every two preforming rods 33. The distance between two preforming rods 33 in the same area is not greater than the width of the flat body 1 of the packaging box. The spacer seats 30 are fixedly connected by connecting rods. The second fixing seat 35 is provided with a linear adjusting element 37. The linear adjusting element 37 is an oil cylinder, an electric cylinder or a cylinder that drives the linear movement of the driving end. The fixed end of the linear adjusting element 37 is fixedly connected to the second fixing seat 35, and the output end is fixedly connected to the spacer seat 30. The linear adjusting element 37 can adjust the position of the front connecting rod 31 on the conveying auxiliary support plate 25, so as to adjust the position of the preforming rod 33. The feeding pressure wheel 36 is fixedly connected to the spacer seat 30. One spacer seat 30 is correspondingly provided with one feeding pressure wheel 36. The feeding pressure wheel 36 rotates on the conveying auxiliary support plate 25 and is used to press the front end of the bottom surface 11 of the flat body 1 of the packaging box. In order to cooperate with the adjustment of the linear adjusting element 37 for the front connecting rod 31, the second fixing seat 35 is provided with a cooperating adjustment seat 39. The rear connecting rod 32 is limited and slides on the cooperating adjustment seat 39. Both ends of the rear connecting rod 32 are respectively provided with the cooperating adjustment seat 39. The flat body 1 of the packaging box is manually placed or driven by a robot arm to move from above the carrier 20 towards the carrier 20. When the flat body 1 of the packaging box passes through the preforming rod 33, due to the distance between the two preforming rods 33, the left side surface 12 and the right side surface 13 of the flat body 1 of the packaging box are upturned. The flat body 1 of the packaging box is placed in the carrier 20. After the flat body 1 of the packaging box enters the carrier 20, the left side surface 12 and the right side surface 13 are respectively folded and attached to the baffle, and at the same time, the front ear 14 and the rear ear 15 respectively form a certain angle with the bottom surface 11 and the front surface 10.

[0035] Please refer to Figure 4 , the guide ear glue spraying assembly 4 includes a guide ear glue spraying seat 41, a pressing large page plate 42, an ear punching structure 43, a guide ear rod 44 and a guide ear dotting machine 45. The guide ear glue spraying seat 41 is fixedly connected to the conveying main support plate 24. The pressing large page plate 42 is arranged between the guide ear glue spraying seat 41 and the conveying main support plate 24. A gap allowing the front surface 10 of the flat body 1 of the packaging box to pass through is arranged between the pressing large page plate 42 and the conveying main support plate 24. A pressing material inclined plate is fixedly arranged at one end of the pressing large page plate 42 close to the preforming assembly 3. The distance between the pressing material inclined plate and the conveying main support plate 24 gradually decreases from the preforming assembly 3 towards the pressing large page plate 42.

[0036] The guide ear rod 44 is arranged on one side of the conveyor belt 22. There is a gap allowing the rear ear 15 to pass between the guide ear rod 44 and the carrier 20. One end of the guide ear rod 44 close to the preforming assembly 3 is provided with a guide ear inclined surface. The function of the guide ear inclined surface is to gradually change the folding angle between the rear ear 15 far from the preforming assembly 3 and the right side surface 13. The overall function of the guide ear rod 44 is to maintain the folding angle between the rear ear 15 and the left side surface 12 or the right side surface 13.

[0037] The ear punching structure 43 is arranged at one end of the guide ear glue spraying seat 41 close to the preforming assembly 3. The ear punching structure 43 includes an ear punching rotating seat 431, an ear punching driving element 432, an ear punching rod 433 and an ear punching connecting piece 434. The ear punching rod 433 is arranged in an "L" shape. The ear punching driving element 432 is an oil cylinder, an electric cylinder or a cylinder with a linear motion output end. The fixed end of the ear punching driving element 432 is rotatably connected to the guide ear glue spraying seat 41, and the output end is limit-rotatably connected to the ear punching connecting piece 434. The ear punching connecting piece 434 is fixedly sleeved on the ear punching rotating seat 431. The ear punching rotating seat 431 is limit-rotatable on the guide ear glue spraying seat 41. The ear punching rod 433 is fixedly connected to the outer wall of the ear punching rotating seat 431. When the ear punching driving element 432 outputs, it drives the ear punching rotating seat 431 to rotate, thereby driving the ear punching rod 433 to perform an arc motion to fold the rear ear 15 on the side close to the preforming assembly 3. The folded rear ear 15 enters the gap between the guide ear rod 44 and the carrier 20 to maintain the folding angle between the rear ear 15 and the left side surface 12.

[0038] The guide ear glue applicator 45 is suspended on one side of the guide ear rod 44. The position of the guide ear glue applicator 45 can be adjusted up and down and the distance from the guide ear rod 44.

[0039] Please refer to Figure 5 and Figure 6 As shown in, the vertical folding assembly 5 includes a guide large page rod 51 and an end face folding structure. A guide large page hole is provided on one side of the main conveying support plate 24 close to the conveyor belt 22. The guide large page hole is arranged at one end of the large page pressing plate 42 close to the vertical folding assembly 5. The guide large page rod 51 is suspended above the guide large page hole. One end of the guide large page rod 51 close to the large page pressing plate 42 is arranged at a position lower than the large page pressing plate 42, and the other end is arranged at a position higher than the large page pressing plate 42. The guide ear glue applicator 45 is arranged at one end of the guide large page rod 51 close to the large page pressing plate 42. When the front face 10 and the rear end face 18 of the flat box body 1 are separated from the large page pressing plate 42, the rear end face 18 will be lifted by the guide large page rod 51. At the same time, the guide ear glue applicator 45 applies glue on the rear end face 18. The guide large page rod 51 lifts the rear end face 18 and ensures that a certain angle is formed between the rear end face 18 and the bottom face 11.

[0040] The end - face folding structure includes an end - face pressing head 52, an end - face downward - pressing driving element 53, an end - face transverse - pressing head 54 and an end - face transverse - pressing driving element 55. The end - face downward - pressing driving element 53 is an oil cylinder, an electric cylinder or a pneumatic cylinder with a linear motion at the output end. The end - face downward - pressing driving element 53 drives the end - face pressing head 52 to move up and down. The end - face pressing head 52 is arranged above one end of the bottom surface 11 close to the rear end - face 18. The end - face transverse - pressing driving element 55 is an oil cylinder, an electric cylinder or a pneumatic cylinder with a linear motion at the output end. The end - face transverse - pressing driving element 55 drives the end - face transverse - pressing head 54 to move closer to or away from the bottom surface 11 of the flat - box body 1 of the packaging box. The end - face transverse - pressing head 54 is arranged outside one side of the bottom surface 11 of the flat - box body 1 of the packaging box close to the rear end - face 18. The distance between the end - face transverse - pressing head 54 and the main conveying pallet 24 is lower than the height of the large - guide page rod 51 from the main conveying pallet 24. The fixed end of the end - face transverse - pressing driving element 55 is fixedly connected to the main conveying pallet 24. When the end - face pressing head 52 presses down, at this time, the end - face pressing head 52 is on the surface of the bottom surface 11 and on one side of the rear ear 15. The end - face transverse - pressing head 54 presses against the rear ear 15. At this time, the end - face transverse - pressing head 54 drives the rear end - face 18 to press against the rear ear 15. Since the rear end - face 18 has been glued, the end - face pressing head 52 and the end - face transverse - pressing head 54 jointly clamp the rear ear 15 and the rear end - face 18, so that the rear end - face 18 and the rear ear 15 are adhesively connected.

[0041] In order to keep the rear end - face 18 and the front face 10 in a vertical state, a limiting plate 26 is fixedly arranged on one side of the main conveying pallet 24 close to the conveyor belt 22. There is a gap between the limiting plate 26 and the carrier 20 that allows the rear end - face 18 and the front face 10 to pass through.

[0042] Please refer to Figure 7, the pressing box assembly 6 is arranged on the conveying auxiliary pallet 25. The pressing box assembly 6 includes a pressing box driving element 61 and a pressing box die 62. The pressing box driving element 61 is an oil cylinder, an electric cylinder or a cylinder with a linear motion at the output end. The fixed end of the pressing box driving element 61 is fixedly connected to the conveying auxiliary pallet 25, and the output end is fixedly connected to the pressing box die 62. The width of the pressing box die 62 is the same as the width of the bottom surface 11. One end of the pressing box die 62 close to the carrier 20 is provided with an end face. The pressing box driving element 61 drives the pressing box die 62 to move in a limited way to enter or exit the carrier 20. When the carrier 20 stays on one side of the pressing box die 62, the pressing box driving element 61 drives the pressing box die 62 to enter the carrier 20 and cooperate with the carrier 20 and the limiting plate 26 to shape each surface of the packaging box flat body 1 in the carrier 20, including shaping the folding angles between the left side surface 12, the right side surface 13 and the bottom surface 11, shaping the folding angles between the rear end surface 18, the rear ear 15 and the bottom surface 11, and also fixing the pasting relationship between the rear end surface 18 and the rear ear 15. Since there is no folding and shaping step for the left side surface 12 and the right side surface 13 before this step, the pressing box die 62 can help to form folding marks between the left side surface 12 and the right side surface 13 and the bottom surface 11 respectively. Similarly, the pressing box die 62 can help to form folding marks between the rear end surface 18, the rear ear 15 and the bottom surface 11 respectively.

[0043] Please refer to Figure 8 , the forming and spraying glue assembly 7 includes a partition plate 71, a forming and spraying glue machine 72, a folding part for the side ear 16 and a folding driving element for the side ear 16. The partition plate 71 is arranged at one end of the limiting plate 26 close to the forming and spraying glue assembly 7. The partition plate 71 partially overlaps with the limiting plate 26, and a gap allowing the front surface 10 to move is provided in the overlapping part. One end of the partition plate 71 close to the limiting plate 26 is provided with a fixedly connected partition inclined surface. The distance between the partition inclined surface and the carrier 20 gradually increases from the limiting plate 26 to the partition plate 71 direction. The front surface 10 of the packaging box flat body 1 enters the gap between the partition plate 71 and the limiting plate 26 under the guidance of the partition inclined surface, so that the front surface 10 of the packaging box flat body 1 is on the side of the partition plate 71 far from the carrier 20.

[0044] The folding driving element for the side ear 16 is an oil cylinder, an electric cylinder or a cylinder with a linear motion at the output end. The folding driving element for the side ear 16 is inclined and arranged above the conveyor belt 22. The output end of the folding driving element for the side ear 16 is fixedly connected to the folding part for the side ear 16. One side of the folding part for the side ear 16 far from the folding driving element for the side ear 16 is set as a right angle. The folding driving element for the side ear 16 drives the folding part for the side ear 16 to press the side ear 16 against the other side ear 16. The right angle of the folding part for the side ear 16 first pushes and then flattens the side ear 16. On the one hand, it folds the side ear 16, and on the other hand, it is convenient for the forming and spraying glue machine 72 to spray glue on the side ear 16. There are two folding parts for the side ear 16 and the corresponding folding driving elements for the side ear 16, which fold the left side ear 16 or the right side ear 16 respectively.

[0045] Two forming glue spraying machines 72 are arranged above the carrier 20, and the distances between the forming glue spraying machines 72 and the carrier 20 and between the two forming glue spraying machines 72 can be adjusted.

[0046] Please refer to Figure 9 and Figure 10 As shown in the figure, the bottom end of the partition plate 71 is higher than the flat body 1 of the packaging box. A folding surface structure is provided on the side of the partition plate 71 away from the carrier 20, and no limiting plate 26 is provided between the partition plate 71 and the folding surface structure. The folding surface structure includes a folding surface pressing wheel 75 and a folding surface rod 76. One end of the folding surface rod 76 close to the partition plate 71 is an L-shaped rod 761 arranged obliquely, and the end away from the partition plate 71 is a straight rod 762. The height of the straight rod 762 from the conveying main support plate 24 is the same as the height of the front surface 10 from the conveying main support plate 24. The folding surface pressing wheel 75 is arranged at the end of the straight rod 762 away from the partition plate 71. The height of the bottom end of the folding surface pressing wheel 75 from the conveying main support plate 24 is the same as the height of the finally formed packaging box. The position of the folding surface pressing wheel 75 corresponds to the positions of the two side ears 16 of the flat body 1 of the packaging box. The height of the folding surface structure can be adjusted as a whole. The flat body 1 of the packaging box with good dispensing in the carrier 20 is pushed from the carrier 20 towards the folding surface structure manually or by a linear driving element. When the flat body 1 of the packaging box passes through the folding surface structure, the front surface 10 of the flat body 1 of the packaging box will be gradually folded downwards due to the folding surface rod 76. The folding surface pressing wheel 75 strengthens the folding trace between the front surface 10 and the rear end surface 18. At the same time, the folding surface pressing wheel 75 presses the front surface 10 and the side ear 16 for adhesive connection.

[0047] For the folding change of the flat body 1 of the packaging box, please refer to Figure 11 .

[0048] In order to be able to adjust the position of the guide ear rod 44, the guide ear rod 44 is connected to the guide ear glue spraying seat 41 through a guide ear adjustment structure. The guide ear adjustment structure includes a guide ear adjustment base, a guide ear adjustment bracket and a guide ear adjustment screw rod. The guide ear adjustment screw rod rotates in a limited way in the guide ear adjustment base. The guide ear adjustment screw rod is in threaded cooperation with the guide ear adjustment bracket. The guide ear adjustment bracket slides in a limited way on the guide ear adjustment base. By rotating the guide ear adjustment screw rod, the position of the guide ear adjustment bracket on the guide ear adjustment base can be changed. The guide ear adjustment bracket is provided with a guide ear adjustment hole. The guide ear rod 44 is connected to the guide ear adjustment bracket through a guide ear connecting rod. The guide ear connecting rod is fixedly connected to the guide ear rod 44. A number of guide ear matching holes are provided on the guide ear connecting rod. The axial direction of the guide ear connecting rod is perpendicular to the axial direction of the guide ear rod 44. By connecting different guide ear matching holes and guide ear adjustment holes with bolts, the distance between the guide ear rod 44 and the carrier 20 can be adjusted. The guide ear rod 44 is also composed of multiple rods combined together so that the specific length of the guide ear rod 44 can be adjusted.

[0049] In order to be able to adjust the height of the preformed rod 33, in this embodiment, preferably, the partition seat 30 is provided with a lifting adjustment hole. The lifting adjustment hole is a long hole and is vertically arranged. The front connecting rod 31 is limited in lifting within the lifting adjustment hole. The front connecting rod 31 is connected to the conveying auxiliary support plate 25 through a lifting adjustment seat 38. Two lifting adjustment seats 38 are arranged at both ends of the front connecting rod 31. The lifting adjustment seat 38 is connected to the conveying auxiliary support plate 25 through a lifting adjustment rod. The lifting adjustment rod is rotationally limited with respect to the lifting adjustment seat 38 and is threadedly connected to the conveying auxiliary support plate 25. The matching adjustment seat 39 is connected to the first fixing seat 34 through a matching adjustment rod. The matching adjustment rod is rotationally limited with respect to the matching adjustment seat 39 and is threadedly connected to the first fixing seat 34.

[0050] Finally, it should be noted that the above are only preferred examples of the present invention and are not used to limit the present invention. Although the present invention has been described in detail with reference to the foregoing embodiments, for those skilled in the art, they can still modify the technical solutions recorded in the foregoing embodiments, or perform equivalent replacements for some of the technical features. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. An automatic folding and gluing machine for folding and applying glue to a flat packaging box body (1), the flat packaging box body (1) being composed of a front face (10), a bottom face (11), a left side face (12), a right side face (13), two front ears (14), two rear ears (15), two side ears (16), a front end face (17), a rear end face (18) and an insertion ear (19), characterized in that, It includes a conveyor belt (22), a main conveyor pallet (24) and a folding module. A number of carriers (20) are provided on the surface of the conveyor belt (22). The width inside the carrier (20) is the same as the width of the bottom surface (11). The main conveyor pallet (24) is responsible for planar supporting the rear end face (18) and the front face (10). The folding module includes an ear-guide glue spraying assembly (4), a vertical folding assembly (5) and a forming glue spraying assembly (7) through which the carrier (20) passes in sequence. The ear-guide glue spraying assembly (4) includes an ear punching structure (43), an ear-guide rod (44) and an ear-guide glue dispenser (45). The ear-guide rod (44) is arranged on one side of the conveyor belt (22). The ear punching structure (43) includes an ear punching driving element (432) and an ear punching rod (433). The ear punching driving element (432) drives the ear punching rod (433) to move in an arc. The ear punching rod (433) drives the rear ear (15) into the gap between the carrier (20) and the ear-guide rod (44). The ear-guide glue dispenser (45) applies glue to the rear ear (15) or the rear end face (18). The vertical folding assembly (5) includes a large-page guiding rod (51) and an end-face folding structure. The end-face folding structure includes an end-face horizontal pressing head (54). The large-page guiding rod (51) guides the rear end face (18) to one side of the end-face horizontal pressing head (54). The end-face horizontal pressing head (54) presses the rear end face (18) against the rear ear (15). The forming glue spraying assembly (7) includes a forming glue spraying machine (72), a side-ear (16) folding member and a side-ear (16) folding driving element. The side-ear (16) folding driving element drives the side-ear (16) folding member to press the side ear (16) against the other side ear (16). The forming glue spraying machine (72) applies glue to the front face (10) or the side ear (16).

2. The automatic folding and gluing machine according to claim 1, wherein It includes a preforming assembly (3). The preforming assembly (3) includes preforming rods (33), front connecting rods (31), rear connecting rods (32) and feeding pressure wheels (36). The preforming rods (33) are arranged above the carrier (20). The distance between the two preforming rods (33) is not greater than the width of the flat body (1) of the packaging box. The two ends of the preforming rod (33) are respectively connected to the front connecting rod (31) and the rear connecting rod (32) through corresponding connecting blocks. A separating seat (30) is fixedly arranged between every two preforming rods (33). The separating seat (30) is arranged on the front connecting rod (31) or the rear connecting rod (32). The feeding pressure wheel (36) is fixedly connected to the separating seat (30). The feeding pressure wheel (36) rotates on the flat body (1) of the packaging box.

3. The automatic folding and gluing machine according to claim 1, wherein The guide ear glue spraying assembly (4) includes a pressing large page plate (42). A gap for the front surface (10) to pass through is provided between the pressing large page plate (42) and the main conveying support plate (24). A guide large page hole is provided on one side of the main conveying support plate (24) close to the conveyor belt (22). The guide large page rod (51) is suspended above the guide large page hole. One end of the guide large page rod (51) close to the pressing large page plate (42) is arranged at a position lower than the pressing large page plate (42), and the other end is arranged at a position higher than the pressing large page plate (42).

4. The automatic folding carton gluing machine according to claim 1, wherein The ear punching structure (43) is arranged on the guide ear glue spraying seat (41). The ear punching structure (43) includes an ear punching connecting piece (434) and an ear punching rotating seat (431). The ear punching rod (433) is arranged in an "L" shape. The fixed end of the ear punching driving element (432) is rotatably connected to the guide ear glue spraying seat (41), and the output end is in a limited rotation connection with the ear punching connecting piece (434). The ear punching rotating seat (431) is in a limited rotation on the guide ear glue spraying seat (41). The ear punching connecting piece (434) is fixedly sleeved on the ear punching rotating seat (431). The ear punching rod (433) is fixedly connected to the outer wall of the ear punching rotating seat (431).

5. The automatic folding carton gluing machine according to claim 1, characterized in that, The side ear (16) folding driving element is inclined above the conveyor belt (22). One side of the side ear (16) folding piece away from the side ear (16) folding driving element is set as a right angle.

6. The automatic folding and gluing machine according to claim 1, characterized in that, A limiting plate (26) is fixedly arranged on one side of the main conveying support plate (24) close to the conveyor belt (22). A gap for the rear end surface (18) and the front surface (10) to pass through exists between the limiting plate (26) and the carrier (20).

7. The automatic folding carton gluing machine according to claim 6, wherein, The forming glue spraying assembly (7) includes a partition plate (71). The partition plate (71) is arranged at one end of the limiting plate (26) close to the forming glue spraying assembly (7). There is an overlapping part between the partition plate (71) and the limiting plate (26), and a gap allowing the front surface (10) to move is provided in the overlapping part. A fixed partition inclined surface is provided at one end of the partition plate (71) close to the limiting plate (26). The distance between the partition inclined surface and the carrier (20) gradually increases from the limiting plate (26) to the partition plate (71).

8. The automatic folding and gluing machine according to claim 7, wherein It includes a folding surface structure. The folding surface structure is arranged on the side of the partition plate (71) away from the carrier (20). The bottom end of the partition plate (71) is higher than the flat body of the packaging box (1). The folding surface structure includes a folding surface pressing wheel (75) and a folding surface rod (76). One end of the folding surface rod (76) close to the partition plate (71) is an L-shaped rod (761). The height of the folding surface pressing wheel (75) or the folding surface rod (76) from the main conveying support plate (24) is not lower than the height of the front surface (10) from the main conveying support plate (24).

9. The automatic folding and gluing machine according to claim 1, wherein, The end surface folding structure includes an end surface pressing head (52). The end surface pressing head (52) is arranged above one end of the bottom surface (11) close to the rear end surface (18). The end surface horizontal pressing head (54) moves close to or away from the bottom surface (11). The end surface pressing head (52) and the end surface horizontal pressing head (54) jointly clamp the rear ear (15) and the rear end surface (18).

10. The automatic folding and gluing machine according to claim 1, characterized in that, It includes a pressing box assembly (6), the pressing box assembly (6) includes a pressing box driving element (61) and a pressing box mold (62), the pressing box driving element (61) drives the pressing box mold (62) to enter or exit the carrier (20), the width of the pressing box mold (62) is the same as the width of the bottom surface (11), and one end of the pressing box mold (62) close to the carrier (20) is provided with an end face.

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