A self-locking bottom folding box machine

Abstract

The application discloses a self-locking bottom folding box machine, which is capable of adapting to the folding work of a paper box with thin paper, and comprises a rack, a stock bin, a folding box area and a feeding mechanism, a plurality of paper boxes are arranged in the stock bin, the stock bin is located at the left end of the rack, the folding box area is located at the right end of the rack, the feeding mechanism is slidably connected with the rack from the left end to the right end of the rack and is used for transporting the paper boxes, a folding box mechanism and a limiting mechanism are arranged in the folding box area, the folding box mechanism is detachably connected with the front side of the rack, the limiting mechanism is located at the rear side of the rack, the limiting mechanism comprises a supporting piece which can automatically expand and contract along the front-rear direction of the rack, one end of the supporting piece is close to the folding box mechanism and is matched with the inside of the paper box, and the other end of the supporting piece is away from the folding box mechanism and is slidably connected with the rack in the up-down direction. The self-locking bottom folding box machine has the advantages that the folding work of the paper box with thin paper can be adapted to.

Description

Technical Field

[0001] The present invention relates to the technical field related to box folding machines, and in particular to a self-locking bottom box folding machine. Background Art

[0002] Paper box packaging is widely used in production and daily life due to its light weight, low cost, and ability to effectively protect the integrity of goods during circulation. However, these cartons usually need to be folded to store goods. In current social production practices, folding cartons consume a large amount of human resources, which seriously restricts the development of related industries in the face of labor shortages. Labor costs are high, work efficiency is low, and folding cartons is mechanical and repetitive labor, which is labor-intensive and has uneven quality.

[0003] The Chinese patent publication number is CN210234129U, and the authorization announcement date is April 3, 2020. It discloses an automatic self-locking box folding machine, comprising: a frame, the frame having a carton storage bin, a feeding chamber, a folding chamber and a discharge plate, the carton storage bin is fixedly installed on the top left side of the feeding chamber, the folding chamber is fixedly installed on the top right side of the feeding chamber, and the discharge plate is fixedly installed on the rear side wall of the folding chamber; a carton feeding mechanism, the carton feeding mechanism is installed on the The top of the inner wall is used to clamp the paper box; the box opening mechanism is installed on the left side of the inner wall of the folding chamber and is used to transport the paper box; the box folding mechanism is fixed at the connection between the material taking chamber and the inner wall of the folding chamber and is used to fold the paper box; the control mechanism is installed on the front side wall of the folding chamber and is electrically connected to the paper box taking mechanism, the box opening mechanism and the folding mechanism respectively to control the driving operation of the paper box taking mechanism, the box opening mechanism and the folding mechanism.

[0004] As can be seen from the above patent, in the prior art, the folding efficiency of the folding machine has been improved compared to manual labor, but it is only suitable for cartons with thicker paper. For cartons with thinner paper, such as various packaging paper bags, since the paper is relatively soft, the folding mechanism is prone to deformation or position displacement when folding the bottom of the paper, making it difficult to fold the bottom of the paper box, and therefore cannot adapt to the folding work of cartons with thinner paper. Summary of the Invention

[0005] The present invention aims to overcome the deficiency in the prior art that box folding machines cannot adapt to the folding of paper boxes with thinner paper, and provides a self-locking bottom box folding machine that can adapt to the folding of paper boxes with thinner paper.

[0006] In order to achieve the above object, the present invention adopts the following technical solutions:

[0007] The application discloses a self-locking bottom folding box machine, which comprises a rack, a stock bin, a folding box area and a feeding mechanism.

[0008] The rack is provided with a stock bin, a folding box area and a feeding mechanism, the stock bin is provided with a plurality of paper boxes, the stock bin is located at the left end of the rack, the folding box area is located at the right end of the rack, the feeding mechanism is slidably connected with the rack from the left end to the right end of the rack and is used for transporting the paper boxes, the folding box area is provided with a folding box mechanism and a limiting mechanism, the folding box mechanism is detachably connected with the front side of the rack, the limiting mechanism is located at the rear side of the rack, the limiting mechanism comprises a supporting piece which can automatically extend and retract along the front-rear direction of the rack, one end of the supporting piece is close to the folding box mechanism and matches the inside of the paper box, and the other end of the supporting piece is away from the folding box mechanism and is slidably connected with the rack in the up-down direction. The feeding mechanism is convenient for transporting the paper boxes in the stock bin to the folding box area; the supporting piece extends and is inserted into the paper box, which is beneficial to supporting and opening the paper box and limiting the paper box to a certain extent, preventing the position deviation and deformation of the paper box during folding, thereby being beneficial to folding the bottom of the paper box by the folding box mechanism, so that the folding box machine can adapt to the folding work of the paper box with thin paper, and the paper box with thin paper can be fixed again by other ways after preliminary self-locking; the supporting piece is slidably connected with the rack in the up-down direction, which is beneficial to adjusting the height position of the supporting piece by system setting according to the thickness of different paper boxes, so as to adapt to different specifications of the paper box and has high practicability.

[0009] Preferably, a cavity is provided in the frame, the feeding mechanism is located in the cavity and between the folding box mechanism and the stretching member, the feeding mechanism includes a support seat, a feeding cylinder and a suction cylinder 1, the feeding cylinder is detachably connected to the side wall of the cavity, the output end of the feeding cylinder is detachably connected to the support seat, the support seat is slidably connected to the bottom of the cavity left and right under the drive of the feeding cylinder, the suction cylinder 1 is detachably mounted on the support seat, a support plate is provided on the output end of the suction cylinder 1, the support plate is movably connected to the cavity up and down under the drive of the suction cylinder 1, a plurality of suction cups 1 corresponding to the paper boxes are mounted on the support plate, a plurality of strip holes are provided on the top of the cavity for the suction cup 1 to pass through, and the plurality of strip holes are parallel to each other, the hopper and the folding box area are both located on the outside of the top of the cavity and correspond to the plurality of strip holes. The feeding mechanism is arranged in the cavity, which is beneficial to reducing the space occupied by the folding machine and plays a certain protective role for the feeding mechanism. The strip hole makes it convenient for the suction cup to rise and absorb the paper box under the drive of the suction cylinder, and transport the paper box from the hopper to the folding area on the top surface of the frame along the length direction of the strip hole; in the initial state, several suction cups on the support plate correspond to the hopper. When the feeding mechanism is working, the suction cylinder drives the several suction cups on the support plate to rise, and the several suction cups penetrate the corresponding strip holes to absorb the paper box. The feeding cylinder pushes the support seat to slide to the right, so that the paper box moves to the corresponding position in the folding area for folding processing, realizing accurate and automatic transportation of the paper box, which is beneficial to improving work efficiency and folding quality.

[0010] Preferably, the hopper includes an L-shaped plate and a side plate, the L-shaped plate is located between the side plate and the folding box area, the L-shaped plate is detachably connected to the frame, one side of the L-shaped plate is suspended on a number of strip holes and is perpendicular to the strip holes, the other side of the L-shaped plate is parallel to the strip holes, the side plate is connected to the other side of the L-shaped plate for sliding left and right and is in contact with the top outer side of the cavity, the L-shaped plate and the side plate are fixed with limiting ridges that match the edges of the paper boxes, and several paper boxes are located in the U-shaped structure formed by the L-shaped plate and the side plates and are stacked on the limiting ridges. One side of the L-shaped plate is suspended on several strip holes to facilitate the passage of paper boxes, so that the paper boxes are transported from the hopper to the box folding area under the transportation of the feeding mechanism; several paper boxes are stacked on the limiting convex strips, which makes it convenient for the suction cup to penetrate the strip holes and then insert into the bottom of the hopper to absorb the paper boxes stacked on the bottom layer and transport them out of the hopper, preventing the friction between the paper boxes from causing the paper boxes to be damaged or unable to completely detach during the process of detaching from the hopper, which is beneficial to improving the safety of the paper boxes detaching from the hopper, thereby ensuring the quality of the paper boxes; the side panel is connected to the other side of the L-shaped plate in a left-right sliding manner, which is convenient for the operator to flexibly adjust the width of the hopper according to the specifications of different paper boxes, and is highly practical.

[0011] Preferably, one side of the side panel is close to the carton, and the other side of the side panel is away from the carton. The frame is provided with a protrusion, the bottom end of the protrusion is fixedly connected to the frame, the top end of the protrusion is provided with a handwheel, one end of the handwheel is threadedly connected to the protrusion, the other end of the handwheel passes through the protrusion and is rotatably connected to the side of the side panel away from the carton, the handwheel is sleeved with a spring, one end of the spring is fixedly connected to the protrusion, and the other end of the spring is fixedly connected to the side panel, and the side panels are respectively connected to the L-shaped plate and the frame for sliding left and right under the drive of the handwheel. The operator can drive the side panels to move by rotating the handwheel, thereby adjusting the width of the silo to accommodate cartons of different sizes and improving practicality. When the handwheel is adjusted to a certain position, the tightening action of the spring helps prevent the handwheel from loosening, thereby playing a locking role.

[0012] As preferred, the folding mechanism comprises an upper folding assembly, a lower folding assembly, an insert assembly and two side folding assemblies, the folding area is provided with a support frame, the bottom of the support frame is detachably connected with the frame, the upper folding assembly comprises a folding cylinder one and a folding block one corresponding to the end of the carton, the folding cylinder one is detachably connected with the top of the support frame, the folding block one is detachably connected with the output end of the folding cylinder one and is parallel to the length direction of the carton, the lower folding assembly is located in the cavity and at the side of the support plate, the upper folding assembly corresponds to the lower folding assembly, the lower folding assembly comprises a folding cylinder two and a folding block two corresponding to the end of the carton, the folding cylinder two is detachably connected with the bottom of the cavity, the output end of the folding cylinder two is detachably connected with the folding block two, the top of the cavity is provided with a through hole matched with the folding block two, the through hole is located between the strip-shaped hole and the insert assembly, the two side folding assemblies are symmetrically distributed left and right around the insert assembly, the side folding assembly and the insert assembly are detachably connected with the frame, the cavity is detachably provided with a gas pump one, the gas pump one is located at the side of the support plate, the gas pump one is provided with a bending pipe, one end of the bending pipe is detachably connected with the gas pump one, the other end of the bending pipe penetrates through the top of the cavity and corresponds to the carton, the top of the support frame is detachably provided with a slide rod, the slide rod is parallel to the strip-shaped hole, the slide rod is provided with a sliding seat, the sliding seat is detachably provided with a suction cylinder two, the output end of the suction cylinder two is detachably provided with a suction plate, the suction plate is detachably provided with a plurality of suction cups two corresponding to the carton, the top of the support frame is provided with a pushing cylinder one, the pushing cylinder one is located at the end of the slide rod and is detachably connected with the support frame, the output end of the pushing cylinder one is detachably connected with the sliding seat, the sliding seat is slidingly connected with the slide rod under the driving of the pushing cylinder one. When the carton is conveyed into the folding area, the suction cups two separate the upper and lower layers of the carton under the joint action of the pushing cylinder one and the suction cylinder two; the supporting member extends into the carton from one end of the carton and supports the carton to the left and right sides, which plays a certain limiting role on the carton and prevents the carton from being deviated and deformed when being folded; the folding mechanism folds the other end of the carton: the two side folding assemblies respectively fold the left and right side ears of the carton; then the folding cylinder one drives the folding block one to move down, the folding block one folds the upper side ear of the carton downward; the folding cylinder two drives the folding block two to move up, the folding block two folds the lower side ear of the carton upward; finally, the upper edge of the lower side ear is inserted into the folded upper side ear through the insert assembly, so that the bottom of the carton is preliminarily locked; after the folding is completed, the gas pump one works to blow the carton to the carton collecting place through the bending pipe, which prevents the operator from approaching the equipment in working state, improves the work efficiency and ensures the personal safety.

[0013] As a preferred, the side folding box assembly comprises a bottom plate and a folding box cylinder three, the folding box area is provided with a mounting groove matched with the bottom plate, the bottom plate is located in the mounting groove and is in sliding connection with the mounting groove left and right, the folding box cylinder three is detachably connected with the bottom plate and is located outside the mounting groove, the output end of the folding box cylinder three is provided with a folding box plate corresponding to the end of the paper box, the folding box plate is detachably connected with the folding box cylinder three, the side of the mounting groove is provided with an adjusting block, the adjusting block is fixedly connected with the rack, the adjusting block is provided with a hand wheel two, one end of the hand wheel two is in threaded connection with the adjusting block, the bottom plate is provided with a fixed block, the fixed block is located on the side of the folding box cylinder three, the bottom plate is limited on the other end of the hand wheel two through the fixed block, the other end of the hand wheel two is in rotational connection with the fixed block, the insert page assembly comprises a supporting block and an insert page cylinder, the bottom of the supporting block is detachably connected with the rack, the top of the supporting block is provided with a hand wheel three, one end of the hand wheel three is in threaded connection with the top of the supporting block, the other end of the hand wheel three is in rotational connection with the insert page cylinder, the insert page cylinder is limited on the other end of the hand wheel three, the output end of the insert page cylinder is provided with an insert plate, the insert plate is provided with two insert rods corresponding to the end of the paper box, the insert rods are detachably connected with the insert plate, the top of the adjusting block and the supporting block are both in rotational connection with a locking rod. The operator can adjust the horizontal distance between the folding box cylinder three and the paper box through the hand wheel two, and at the same time adjust the height of the insert page cylinder through the hand wheel three, so as to fold the paper box of different size specifications, improve the practicability, and then lock the adjusted hand wheel two and hand wheel three through the corresponding locking rod to prevent loosening; the folding box cylinder three drives the folding box plate to gradually approach the side folding lug of the paper box, and folds the side folding lug; when the insert page cylinder works, the upper edge of the lower folding lug is inserted into the folded upper folding lug through the insert rod.

[0014] Preferably, the limiting mechanism also includes a base, the expansion member includes an air pump 2 and two electric telescopic rods, the base is connected to the frame for sliding up and down, the air pump 2 is detachably connected to the base, the two electric telescopic rods are symmetrically distributed left and right with the air pump 2 as the center, the electric telescopic rod is connected to the base for sliding left and right, an axis tube is provided on the telescopic end of the electric telescopic rod, one end of the axis tube is close to the folding box mechanism, the other end of the axis tube is away from the folding box mechanism and is detachably connected to the telescopic end of the electric telescopic rod, a hose is provided on the end of the axis tube away from the folding box mechanism, the axis tube is connected to the air pump 2 through the hose, an inflatable bag is sleeved on the axis tube, the inflatable bag is sealed with the axis tube, a plurality of air outlet holes are provided on the axis tube, and the air outlet holes are located in the inflatable bag. The base is connected to the frame by sliding up and down, which makes it easy for the operator to adjust the height of the expansion piece according to the size of the carton; the electric telescopic rod is connected to the base by sliding left and right, which makes it easy for the operator to adjust the distance between the two electric telescopic rods according to the width of the carton; when the expansion piece is working, the electric telescopic rod drives the shaft tube to extend, and the shaft tube is inserted into the carton, and the air pump works to inflate the inflatable bag, so that the inside of the carton is supported, which is beneficial for the folding mechanism to fold the carton and improve product quality.

[0015] Preferably, the shaft tube is provided with an inserting tongue at one end thereof near the folding mechanism. The inserting tongue is flat in shape, one end of the inserting tongue is fixedly connected to the shaft tube and forms an integral body, and the thickness of the inserting tongue gradually decreases from the end thereof fixedly connected to the shaft tube to the other end. The design of the inserting tongue provides a good guide for the shaft tube to be inserted into the carton.

[0016] Preferably, the top of the base is provided with a rectangular groove, two slides are provided within the rectangular groove, the electric telescopic rod is mounted on the top of the slides and is located outside the rectangular groove, the bottom end of one slide is slidably connected to the side wall of the open end of the rectangular groove, and the bottom end of the other slide is slidably connected to the bottom side wall of the rectangular groove, and the bottom ends of both slides are provided with racks, the racks are located between the two slides and fixedly connected to the side walls of the slides, and the racks and the slides are perpendicular to each other. A motor is detachably mounted on the side wall of the base, the output end of the motor passes through the side wall of the base and is located within the rectangular groove, the output end of the motor is provided with a gear that meshes with the racks, and the gears are located between the racks on the two slides, and the second air pump is located on the side of the rectangular groove. When the spacing between the two electric telescopic rods is adjusted, the motor operates and drives the gears to rotate, thereby driving the electric telescopic rods to move closer or further together through the upper and lower meshing of the two racks, which helps to ensure that the displacement of the two electric telescopic rods is the same and facilitates adjustment.

[0017] Preferably, the rear side of the frame is provided with a groove matching the base, and a pushing cylinder 2 is detachably installed in the groove. The output end of the pushing cylinder 2 is detachably connected to the bottom of the base, and sliders are provided on the left and right sides of the base. The left and right sides of the groove are provided with slide grooves matching the sliders. Under the drive of the pushing cylinder 2, the base is slidably connected to the frame through the matching sliders and slide grooves.

[0018] The beneficial effects of the present invention are as follows: it achieves the purpose of being able to adapt to the folding work of paper boxes with thinner paper; it is conducive to adapting to paper boxes of different specifications and is highly practical; the feeding mechanism is arranged in the cavity, which is conducive to reducing the occupied space of the box folding machine and plays a certain protective role for the feeding mechanism; it realizes accurate and automatic transportation of paper boxes, which is conducive to improving work efficiency and box folding quality; it is beneficial to personal safety; it is conducive to ensuring that the displacements generated by the two electric telescopic rods are the same and adjustment is convenient; it is conducive to adjusting the heights of the two electric telescopic rods. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a structural schematic diagram of the present invention;

[0020] Figure 2 yes Figure 1 A top view of

[0021] Figure 3 yes Figure 2 Rear view;

[0022] Figure 4 yes Figure 2 A magnified view of the structure at B in the middle;

[0023] Figure 5 yes Figure 2 A magnified view of the structure at C in the middle;

[0024] Figure 6 yes Figure 2 A magnified view of the structure at E in the middle;

[0025] Figure 7 It is a structural diagram of the shaft tube;

[0026] Figure 8 yes Figure 6 Cross-sectional view of AA;

[0027] Figure 9 yes Figure 1 Enlarged view of the structure at point D in the middle.

[0028] Figure: 1. Frame, 2. Material bin, 3. Folding area, 4. Feeding mechanism, 5. Paper box, 6. Folding mechanism, 7. Limiting mechanism, 8. Opening member, 9. Cavity, 10. Support base, 11. Feeding cylinder, 12. Suction cylinder (1), 13. Support plate, 14. Suction cup (1), 15. Strip hole, 16. L-shaped plate, 17. Side plate, 18. Limiting ridge, 19. Bump, 20. Handwheel (1), 21. Spring, 22. Upper folding assembly, 23. Lower folding assembly, 24. Insert assembly, 25. Side folding assembly, 26. Support frame, 27. Folding cylinder (1), 28. Folding block (1), 29. Folding cylinder (2), 30. Folding block (2), 31. Through hole, 32. Air pump 1, 33. Bending tube, 34. Slide rod, 35. Sliding seat, 36. Suction cylinder 2, 37. Suction plate, 38. Suction cup 2, 39. Push cylinder 1, 40. Bottom plate, 41. Folding cylinder 3, 42. Mounting slot, 43. Folding plate, 44. Adjustment block, 45. Handwheel 2, 46. Fixing block, 47. Support block, 48. Insert cylinder, 49. Handwheel 3, 50. Insert plate, 51. Insert rod, 52. Lock rod, 53. Base, 54. Air pump 2, 55. Electric telescopic rod, 56. Shaft tube, 57. Hose, 58. Inflatable bag, 59. Air outlet, 60. Insert tongue, 61. Rectangular slot, 62. Slide seat, 63. Rack, 64. Motor, 65. Gear, 66. Groove, 67. Push cylinder 2, 68. Slider, 69. Slide. DETAILED DESCRIPTION

[0029] The present invention will be further described below with reference to the accompanying drawings and specific embodiments.

[0030] like Figure 1 、 Figure 2 and Figure 3 In the described embodiment, a self-locking bottom folding machine includes a frame 1, the frame 1 is provided with a hopper 2, a folding area 3 and a feeding mechanism 4, a plurality of paper boxes 5 are provided in the hopper 2, the hopper 2 is located at the left end of the frame 1, the folding area 3 is located at the right end of the frame 1, the feeding mechanism 4 is slidably connected to the frame 1 from the left end to the right end of the frame 1, and is used to transport the paper boxes 5, a folding mechanism 6 and a limiting mechanism 7 are provided in the folding area 3, the folding mechanism 6 is detachably connected to the front side of the frame 1, the limiting mechanism 7 is located at the rear side of the frame 1, and the limiting mechanism 7 includes a stretching member 8 that can automatically extend and retract along the front and rear directions of the frame 1, one end of the stretching member 8 is close to the folding mechanism 6 and matches the interior of the paper box 5, and the other end of the stretching member 8 is away from the folding mechanism 6 and is slidably connected to the frame 1 up and down.

[0031] like Figure 1 and Figure 2As shown, a cavity 9 is provided in the frame 1, and the feeding mechanism 4 is located in the cavity 9 and between the folding box mechanism 6 and the stretching member 8. The feeding mechanism 4 includes a support base 10, a feeding cylinder 11 and a suction cylinder 12. The feeding cylinder 11 is detachably connected to the side wall of the cavity 9, and the output end of the feeding cylinder 11 is detachably connected to the support base 10. The support base 10 is connected to the bottom of the cavity 9 by sliding left and right under the drive of the feeding cylinder 11. The suction cylinder 12 is detachably mounted on the support base. On the support seat 10, a support plate 13 is provided on the output end of the suction cylinder 12. The support plate 13 is movably connected to the cavity 9 up and down under the drive of the suction cylinder 12. A number of suction cups 14 corresponding to the paper box 5 are installed on the support plate 13. The top of the cavity 9 is provided with a number of strip holes 15 for the suction cups 14 to pass through. The several strip holes 15 are parallel to each other. The hopper 2 and the folding box area 3 are both located on the outside of the top of the cavity 9 and correspond to the several strip holes 15.

[0032] like Figure 1 and Figure 2 As shown, the hopper 2 includes an L-shaped plate 16 and a side plate 17. The L-shaped plate 16 is located between the side plate 17 and the folding area 3. The L-shaped plate 16 is detachably connected to the frame 1. One side of the L-shaped plate 16 is overhead and arranged on a plurality of strip holes 15 and is perpendicular to the strip holes 15. The other side of the L-shaped plate 16 is parallel to the strip holes 15. The side plate 17 is connected to the other side of the L-shaped plate 16 for sliding left and right and is in contact with the top outer side of the cavity 9. The L-shaped plate 16 and the side plate 17 are fixed with limiting ridges 18 that match the edges of the paper boxes 5. Several paper boxes 5 are located in the U-shaped structure formed by the L-shaped plate 16 and the side plates 17 and are stacked on the limiting ridges 18.

[0033] like Figure 1 and Figure 2 As shown, one side of the side panel 17 is close to the paper box 5, and the other side of the side panel 17 is away from the paper box 5. A protrusion 19 is provided on the frame 1, and the bottom end of the protrusion 19 is fixedly connected to the frame 1. A handwheel 20 is provided on the top of the protrusion 19. One end of the handwheel 20 is threadedly connected to the protrusion 19, and the other end of the handwheel 20 passes through the protrusion 19 and is rotatably connected to the side of the side panel 17 away from the paper box 5. A spring 21 is provided on the handwheel 20, and one end of the spring 21 is fixedly connected to the protrusion 19, and the other end of the spring 21 is fixedly connected to the side panel 17. Driven by the handwheel 20, the side panel 17 is respectively connected to the L-shaped plate 16 and the frame 1 for sliding left and right.

[0034] like Figure 1 and Figure 2As shown, the folding box mechanism 6 includes an upper folding box assembly 22, a lower folding box assembly 23, an insert assembly 24 and two side folding box assemblies 25. A support frame 26 is provided overhead on the folding box area 3. The bottom of the support frame 26 is detachably connected to the frame 1. The upper folding box assembly 22 includes a folding box cylinder 27 and a folding box block 28 corresponding to the end of the paper box 5. The folding box cylinder 27 is detachably connected to the top of the support frame 26. The folding box block 28 is detachably connected to the output end of the folding box cylinder 27 and is parallel to the length direction of the paper box 5. The lower folding box assembly The component 23 is located in the cavity 9 and on the side of the support plate 13. The upper folding box component 22 corresponds to the lower folding box component 23 in the upper and lower directions. The lower folding box component 23 includes a folding box cylinder 29 and a folding box block 23 corresponding to the end of the paper box 5. The folding box cylinder 29 is detachably connected to the bottom of the cavity 9. The output end of the folding box cylinder 29 is detachably connected to the folding box block 23. The top of the cavity 9 is provided with a through hole 31 that matches the folding box block 230. The through hole 31 is located between the strip hole 15 and the insert component 24. The two side folding box components 25 are connected to the folding box block 23. The insert assembly 24 is symmetrically distributed with the side folding box assembly 25 and the insert assembly 24 being detachably connected to the frame 1. An air pump 32 is detachably installed in the cavity 9. The air pump 32 is located on the side of the support plate 13. A bending tube 33 is provided on the air pump 32. One end of the bending tube 33 is detachably connected to the air pump 32. The other end of the bending tube 33 passes through the top of the cavity 9 and corresponds to the paper box 5. A sliding rod 34 is detachably installed on the top of the support frame 26. The sliding rod 34 is parallel to the strip hole 15. There is a sliding rod 34 on the sliding rod The support frame 26 is provided with a push cylinder 39, which is located at the end of the slide bar 34 and is detachably connected to the support frame 26. The output end of the push cylinder 39 is detachably connected to the sliding seat 35, and the sliding seat 35 is connected to the slide bar 34 for sliding left and right sliding movement under the drive of the push cylinder 39.

[0035] like Figure 4As shown in the side, side folding box assembly 25 includes the bottom plate 40 and folding box cylinder three 41, folding box area 3 is provided with the mounting groove 42 matched with the bottom plate 40, the bottom plate 40 is located in the mounting groove 42 and is slidably connected with the mounting groove 42, folding box cylinder three 41 is detachably connected with the bottom plate 40 and is located outside the mounting groove 42, the output end of folding box cylinder three 41 is provided with a folding box plate 43 corresponding to the end of the paper box 5, the folding box plate 43 is detachably connected with the folding box cylinder three 41, the side of the mounting groove 42 is provided with an adjusting block 44, the adjusting block 44 is fixedly connected with the rack 1, the adjusting block 44 is provided with a hand wheel two 45, one end of the hand wheel two 45 is threadedly connected with the adjusting block 44, the bottom plate 40 is provided with a fixed block 46, the fixed block 46 is located on the side of the folding box cylinder three 41, the bottom plate 40 is limited on the other end of the hand wheel two 45 through the fixed block 46, the other end of the hand wheel two 45 is rotatably connected with the fixed block 46, as shown in Figure 5 and Figure 9 As shown in the side, the insert assembly 24 includes a support block 47 and an insert cylinder 48, the bottom of the support block 47 is detachably connected with the rack 1, the top of the support block 47 is provided with a hand wheel three 49, one end of the hand wheel three 49 is threadedly connected with the top of the support block 47, the other end of the hand wheel three 49 is rotatably connected with the insert cylinder 48, the insert cylinder 48 is limited on the other end of the hand wheel three 49, the output end of the insert cylinder 48 is provided with an insert plate 50, the insert plate 50 is provided with two insert rods 51 corresponding to the end of the paper box 5, the insert rods 51 are detachably connected with the insert plate 50, the top of the adjusting block 44 and the support block 47 are rotatably connected with a locking rod 52.

[0036] As shown in the side, Figure 3 and Figure 6 The limiting mechanism 7 further includes a base 53, the strutting member 8 includes a second air pump 54 and two electric telescopic rods 55, the base 53 is slidably connected with the rack 1 in up and down directions, the second air pump 54 is detachably connected with the base 53, the two electric telescopic rods 55 are symmetrically distributed in left and right directions with the second air pump 54 as the center, the electric telescopic rods 55 are slidably connected with the base 53 in left and right directions, the telescopic end of the electric telescopic rod 55 is provided with a shaft tube 56, one end of the shaft tube 56 is close to the folding box mechanism 6, the other end of the shaft tube 56 is away from the folding box mechanism 6 and is detachably connected with the telescopic end of the electric telescopic rod 55, the other end of the shaft tube 56 away from the folding box mechanism 6 is provided with a hose 57, the shaft tube 56 is connected with the second air pump 54 through the hose 57, the shaft tube 56 is sleeved with an air bag 58, the air bag 58 is sealingly connected with the shaft tube 56, the shaft tube 56 is provided with a plurality of air outlets 59, the air outlets 59 are located in the air bag 58.

[0037] As shown in the side, Figure 7 The end of the shaft tube 56 close to the folding box mechanism 6 is provided with a plug 60, the plug 60 is flat, one end of the plug 60 is fixedly connected with the shaft tube 56 and forms an integral body, the thickness of the plug 60 gradually decreases from the end fixedly connected with the shaft tube 56 to the other end.

[0038] As Figure 3 , Figure 6 and Figure 8 shown, the top of the base 53 is provided with a rectangular slot 61, two slides 62 are arranged in the rectangular slot 61, the electric telescopic rod 55 is installed at the top of the slide 62 and located outside the rectangular slot 61, the bottom end of one of the slides 62 is slidably connected with the left and right side walls of the opening end of the rectangular slot 61, the bottom end of the other slide 62 is slidably connected with the left and right side walls of the bottom of the rectangular slot 61, the bottom end of each of the two slides 62 is provided with a rack 63, the rack 63 is located between the two slides 62 and fixedly connected with the side walls of the slide 62, the rack 63 is perpendicular to the slide 62, the side wall of the base 53 is detachably provided with a motor 64, the output end of the motor 64 penetrates through the side wall of the base 53 and located in the rectangular slot 61, the output end of the motor 64 is provided with a gear 65 engaged with the rack 63, the gear 65 is located between the racks 63 on the two slides 62, and the air pump two 54 is located at the side of the rectangular slot 61.

[0039] As Figure 3 , Figure 6 and Figure 8 shown, the rear side of the rack 1 is provided with a groove 66 matched with the base 53, the push cylinder two 67 is detachably installed in the groove 66, the output end of the push cylinder two 67 is detachably connected with the bottom of the base 53, the left and right sides of the base 53 are both provided with a sliding block 68, the left and right sides of the groove 66 are both provided with a sliding groove 69 matched with the sliding block 68, and the base 53 is slidably connected with the rack 1 through the sliding block 68 and the sliding groove 69 under the driving of the push cylinder two 67.

[0040] In the initial state, a plurality of suction cups one 14 on the supporting plate 13 correspond to the hopper 2, when the feeding mechanism 4 works, the suction cylinder one 12 drives the plurality of suction cups one 14 on the supporting plate 13 to rise, the plurality of suction cups one 14 penetrates through the corresponding strip-shaped hole 15 to suck the carton 5, and the feeding cylinder 11 drives the supporting seat 10 to slide to the right, so that the carton 5 moves to the corresponding position in the folding box area 3 for folding box processing.

[0041] When the carton 5 is conveyed to the folding area 3, the suction cup 2 38 separates the upper and lower layers of the carton 5 under the joint action of the pushing cylinder 1 39 and the suction cylinder 2 36; when the opening member 8 is working, the electric telescopic rod 55 drives the shaft tube 56 to extend, and the shaft tube 56 is inserted into the carton 5 from one end of the carton 5, and the air pump 2 54 works to inflate the air bag 58 so that the interior of the carton 5 is supported, and the folding mechanism 6 folds the other end of the carton 5: the folding cylinders 3 41 on the two side folding box assemblies 25 drive the folding plate 43 to gradually move to the side of the carton 5. The folding ears are close to each other and the side folding ears are folded; then the folding box cylinder 1 27 drives the folding box block 1 28 to move down, and the folding box block 1 28 folds the upper folding ear of the paper box 5 downward; the folding box cylinder 2 29 drives the folding box block 2 30 to move up, and the folding box block 2 30 folds the lower folding ear of the paper box 5 upward; finally, when the inserting cylinder 48 works, the upper edge of the lower folding ear is inserted into the folded upper folding ear through the insertion rod 51, so that the bottom of the paper box 5 is initially locked; after the box is folded, the air pump 1 32 works and blows the paper box 5 to the paper box 5 collection point through the bending pipe 33.

Claims

1. A self-locking bottom folding box machine, characterized in that: The invention comprises a frame (1), wherein the frame (1) is provided with a hopper (2), a folding area (3) and a feeding mechanism (4), wherein a plurality of paper boxes (5) are provided in the hopper (2), wherein the hopper (2) is located at the left end of the frame (1), and the folding area (3) is located at the right end of the frame (1), and the feeding mechanism (4) is slidably connected to the frame (1) from the left end to the right end of the frame (1) for transporting the paper boxes (5), wherein the folding area (3) is provided with a folding mechanism (6) and a limiting mechanism (7), wherein the folding mechanism (6) is connected to the frame (1). The front side is detachably connected, the limiting mechanism (7) is located at the rear side of the frame (1), the limiting mechanism (7) includes a stretching member (8) that can automatically extend and retract along the front and rear directions of the frame (1), one end of the stretching member (8) is close to the folding box mechanism (6) and matches the inside of the paper box (5), and the other end of the stretching member (8) is away from the folding box mechanism (6) and is connected to the frame (1) in an upward and downward sliding manner; the folding box mechanism (6) includes an upper folding box assembly (22), a lower folding box assembly (23), an insert assembly (24) and two side folding box assemblies (2 5); the limiting mechanism (7) also includes a base (53), the stretching member (8) includes an air pump 2 (54) and two electric telescopic rods (55), the base (53) is connected to the frame (1) in an up-down sliding manner, the air pump 2 (54) is detachably connected to the base (53), the two electric telescopic rods (55) are symmetrically distributed with the air pump 2 (54) as the center, the electric telescopic rods (55) are connected to the base (53) in a left-right sliding manner, and the telescopic end of the electric telescopic rod (55) is provided with a shaft tube (56), the shaft tube ( One end of the shaft tube (56) is close to the folding box mechanism (6), and the other end of the shaft tube (56) is away from the folding box mechanism (6) and is detachably connected to the telescopic end of the electric telescopic rod (55). A hose (57) is provided on the end of the shaft tube (56) away from the folding box mechanism (6). The shaft tube (56) is connected to the air pump 2 (54) through the hose (57). An inflatable bag (58) is provided on the shaft tube (56). The inflatable bag (58) is sealed with the shaft tube (56). The shaft tube (56) is provided with a plurality of air outlet holes (59). The air outlet (59) is located in the inflatable bag (58); an inserting tongue (60) is provided at one end of the shaft tube (56) close to the folding box mechanism (6); the inserting tongue (60) is flat in shape; one end of the inserting tongue (60) is fixedly connected to the shaft tube (56) and forms an integral body; the thickness of the inserting tongue (60) gradually decreases from the end fixedly connected to the shaft tube (56) to the other end.

2. A self-locking bottom folding box machine according to claim 1, characterized in that: A cavity (9) is provided in the frame (1), and the feeding mechanism (4) is located in the cavity (9) and between the folding mechanism (6) and the opening member (8). The feeding mechanism (4) includes a support seat (10), a feeding cylinder (11) and a suction cylinder (12). The feeding cylinder (11) is detachably connected to the side wall of the cavity (9), and the output end of the feeding cylinder (11) is detachably connected to the support seat (10). The support seat (10) is slidably connected to the bottom of the cavity (9) left and right under the drive of the feeding cylinder (11). The suction cylinder (12) is detachably mounted on On the support seat (10), a support plate (13) is provided on the output end of the suction cylinder (12), and the support plate (13) is movably connected to the cavity (9) up and down under the drive of the suction cylinder (12), and a plurality of suction cups (14) corresponding to the paper box (5) are installed on the support plate (13), and a plurality of strip holes (15) are provided on the top of the cavity (9) for the suction cups (14) to pass through, and the plurality of strip holes (15) are parallel to each other, and the hopper (2) and the folding box area (3) are both located outside the top of the cavity (9) and correspond to the plurality of strip holes (15).

3. A self-locking bottom folding box machine according to claim 2, characterized in that: The hopper (2) includes an L-shaped plate (16) and a side plate (17), wherein the L-shaped plate (16) is located between the side plate (17) and the folding box area (3), and the L-shaped plate (16) is detachably connected to the frame (1). One side of the L-shaped plate (16) is suspended on a plurality of strip holes (15) and is perpendicular to the strip holes (15). The other side of the L-shaped plate (16) is parallel to the strip holes (15). The side plate (17) is connected to the other side of the L-shaped plate (16) in a left-right sliding manner and contacts the top outer side of the cavity (9). The L-shaped plate (16) and the side plate (17) are both fixed with limiting convex strips (18) that match the edges of the paper boxes (5). The plurality of paper boxes (5) are located in the U-shaped structure formed by the L-shaped plate (16) and the side plate (17) and are stacked on the limiting convex strips (18).

4. A self-locking bottom folding box machine according to claim 3, characterized in that: One side of the side plate (17) is close to the paper box (5), and the other side of the side plate (17) is away from the paper box (5). A protrusion (19) is provided on the frame (1), and the bottom end of the protrusion (19) is fixedly connected to the frame (1). A hand wheel (20) is provided on the top of the protrusion (19). One end of the hand wheel (20) is threadedly connected to the protrusion (19), and the other end of the hand wheel (20) passes through the protrusion (19) and is rotatably connected to the side of the side plate (17) away from the paper box (5). A spring (21) is sleeved on the hand wheel (20), one end of the spring (21) is fixedly connected to the protrusion (19), and the other end of the spring (21) is fixedly connected to the side plate (17). Under the drive of the hand wheel (20), the side plate (17) is respectively connected to the L-shaped plate (16) and the frame (1) in a left-right sliding manner.

5. The self-locking bottom folding box machine according to claim 2, characterized in that: A support frame (26) is overhead provided on the folding box area (3), the bottom of the support frame (26) is detachably connected to the frame (1), the upper folding box assembly (22) comprises a folding box cylinder (27) and a folding box block (28) corresponding to the end of the paper box (5), the folding box cylinder (27) is detachably connected to the top of the support frame (26), the folding box block (28) is detachably connected to the output end of the folding box cylinder (27) and is parallel to the length direction of the paper box (5), the lower folding box assembly (23) is located in the cavity (9) and on the side of the support plate (13), the upper folding box assembly (22) and the lower folding box assembly (23) correspond to each other up and down, the lower folding box assembly (23) includes a folding box cylinder 2 (29) and a folding box block 2 (30) corresponding to the end of the paper box (5), the folding box cylinder 2 (29) is detachably connected to the bottom of the cavity (9), the output end of the folding box cylinder 2 (29) is detachably connected to the folding box block 2 (30), the top of the cavity (9) is provided with a through hole (31) matching the folding box block 2 (30), the through hole (31) is located between the strip hole (15) and the insert assembly (24), the two side folding box assemblies (25) are symmetrically distributed with the insert assembly (24) as the center, the side folding box assembly (25) and The insert components (24) are all detachably connected to the frame (1), and an air pump (32) is detachably installed in the cavity (9). The air pump (32) is located on the side of the support plate (13). A bending tube (33) is provided on the air pump (32). One end of the bending tube (33) is detachably connected to the air pump (32). The other end of the bending tube (33) passes through the top of the cavity (9) and corresponds to the paper box (5). A sliding rod (34) is detachably installed on the top of the support frame (26). The sliding rod (34) is parallel to the strip hole (15). A sliding seat (35) is provided on the sliding rod (34). The sliding seat A suction cylinder 2 (36) is detachably mounted on (35), a suction plate (37) is detachably mounted on the output end of the suction cylinder 2 (36), and a plurality of suction cups 2 (38) corresponding to the paper box (5) are detachably mounted on the suction plate (37). A pushing cylinder 1 (39) is provided on the top of the support frame (26), the pushing cylinder 1 (39) is located at the end of the slide rod (34) and is detachably connected to the support frame (26), the output end of the pushing cylinder 1 (39) is detachably connected to the sliding seat (35), and the sliding seat (35) is slidably connected to the slide rod (34) left and right under the drive of the pushing cylinder 1 (39).

6. A self-locking bottom folding box machine according to claim 5, characterized in that: The side folding box assembly (25) includes a bottom plate (40) and a folding box cylinder three (41). The folding box area (3) is provided with a mounting groove (42) matching the bottom plate (40). The bottom plate (40) is located in the mounting groove (42) and is slidably connected to the mounting groove (42) left and right. The folding box cylinder three (41) is detachably connected to the bottom plate (40) and is located outside the mounting groove (42). A folding box corresponding to the end of the paper box (5) is provided on the output end of the folding box cylinder three (41). The folding plate (43) is detachably connected to the folding cylinder three (41), an adjusting block (44) is provided on the side of the mounting groove (42), the adjusting block (44) is fixedly connected to the frame (1), a hand wheel two (45) is provided on the adjusting block (44), one end of the hand wheel two (45) is threadedly connected to the adjusting block (44), a fixing block (46) is provided on the bottom plate (40), the fixing block (46) is located on the side of the folding cylinder three (41), The bottom plate (40) is limited to the other end of the hand wheel 2 (45) by the fixed block (46), and the other end of the hand wheel 2 (45) is rotatably connected to the fixed block (46). The insert assembly (24) includes a support block (47) and an insert cylinder (48). The bottom of the support block (47) is detachably connected to the frame (1). The top of the support block (47) is provided with a hand wheel 3 (49), and one end of the hand wheel 3 (49) is threadedly connected to the top of the support block (47). The other end of the hand wheel three (49) is rotatably connected to the insert cylinder (48), and the insert cylinder (48) is limited to the other end of the hand wheel three (49). An insert plate (50) is provided on the output end of the insert cylinder (48), and two insert rods (51) corresponding to the ends of the paper box (5) are provided on the insert plate (50). The insert rods (51) are detachably connected to the insert plate (50), and the tops of the adjustment block (44) and the support block (47) are rotatably connected to the locking rod (52).

7. The self-locking bottom folding box machine according to claim 1, characterized in that: The top of the base (53) is provided with a rectangular groove (61), and two slides (62) are provided in the rectangular groove (61). The electric telescopic rod (55) is installed on the top of the slide (62) and is located outside the rectangular groove (61). The bottom end of one slide (62) is connected to the side wall of the opening end of the rectangular groove (61) in a left-right sliding manner, and the bottom end of the other slide (62) is connected to the bottom side wall of the rectangular groove (61) in a left-right sliding manner. The bottom ends of the two slides (62) are both provided with racks (63), and the racks (63) are located between the two slides (62). The rack (63) and the slide (62) are fixedly connected to each other, and the rack (63) and the slide (62) are perpendicular to each other. A motor (64) is detachably mounted on the side wall of the base (53). The output end of the motor (64) passes through the side wall of the base (53) and is located in the rectangular groove (61). A gear (65) meshing with the rack (63) is provided on the output end of the motor (64). The gear (65) is located between the racks (63) on the two slides (62). The air pump 2 (54) is located on the side of the rectangular groove (61).

8. A self-locking bottom folding box machine according to claim 1 or 7, characterized in that: The rear side of the frame (1) is provided with a groove (66) that matches the base (53), and a second pushing cylinder (67) is detachably installed in the groove (66). The output end of the second pushing cylinder (67) is detachably connected to the bottom of the base (53). Slide blocks (68) are provided on the left and right sides of the base (53), and slide grooves (69) that match the slide blocks (68) are provided on the left and right sides of the groove (66). Under the drive of the second pushing cylinder (67), the base (53) is connected to the frame (1) by sliding up and down through the slide blocks (68) and the slide grooves (69) that match the slide blocks (68).

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