Folding device for cartoning machine

Abstract

The present invention discloses a folding device for a cartoning machine, which includes a first tongue - punching mechanism, a second tongue - punching mechanism, a first tongue - inserting mechanism, and a second tongue - inserting mechanism. The first tongue - punching mechanism and the first tongue - inserting mechanism are arranged beside one side of the conveyor belt, and the second tongue - punching mechanism and the second tongue - inserting mechanism are arranged beside the other side of the conveyor belt. The first tongue - punching mechanism and the second tongue - punching mechanism include a base, on which a tongue - punching crank - connecting rod assembly and a tongue - blocking member are provided. The tongue - punching crank - connecting rod assembly is provided with a tongue - punching member. The first tongue - inserting mechanism includes a first mounting seat, on which a first tongue - inserting crank - connecting rod assembly, a first tongue - guiding rod, a first tongue - folding auxiliary member, and a first tongue - inserting auxiliary member are provided. The first tongue - inserting crank - connecting rod assembly is provided with a first folding - inserting assembly. The second tongue - inserting mechanism includes a second mounting seat, on which a second tongue - inserting crank - connecting rod assembly, a second tongue - guiding rod, a second tongue - folding auxiliary member, and a second tongue - inserting auxiliary member are provided. The second tongue - inserting crank - connecting rod assembly is provided with a second folding - inserting assembly. The present invention has high working efficiency and reduces costs.

Description

Technical Field

[0001] The present invention relates to the technical field of cartoning machines, and specifically to a folding device for a cartoning machine. Background Art

[0002] Carton packaging has the advantages of being convenient for transportation, sales, and enhancing the aesthetics of products, so it is widely used in the sales packaging of various products such as food, medicine, and electronics. During the production process, after the product is loaded into the carton, it is necessary to fold both ends of the carton to complete the packaging. Currently, most folding cartons are sealed manually, which is inefficient and costly. Summary of the Invention

[0003] The purpose of the present invention is to overcome the above-mentioned disadvantages of the prior art and provide a folding device for a cartoning machine that can improve work efficiency and reduce production costs.

[0004] The present invention is realized through the following technical solutions: A folding device for a cartoning machine includes a first tongue - punching mechanism, a second tongue - punching mechanism, a first tongue - inserting mechanism, and a second tongue - inserting mechanism. The first tongue - punching mechanism and the first tongue - inserting mechanism are arranged beside the conveyor belt in the conveying direction, and the second tongue - punching mechanism and the second tongue - inserting mechanism are arranged beside the conveyor belt on the other side in the conveying direction. The first tongue - punching mechanism and the second tongue - punching mechanism each include a base, on which a tongue - punching crank - connecting rod assembly and a tongue - blocking member are provided. A tongue - punching member is provided on the tongue - punching crank - connecting rod assembly. The first tongue - inserting mechanism includes a first mounting seat, on which a first tongue - inserting crank - connecting rod assembly, a first tongue - guiding rod, a first tongue - folding auxiliary member, and a first tongue - inserting auxiliary member are provided. A first folding - inserting assembly is provided on the first tongue - inserting crank - connecting rod assembly. The first tongue - guiding rod is located above the first tongue - folding auxiliary member, the first tongue - inserting auxiliary member is located below the first tongue - folding auxiliary member, and the first folding - inserting assembly is located between the first tongue - folding auxiliary member and the first tongue - inserting auxiliary member. The second tongue - inserting mechanism includes a second mounting seat, on which a second tongue - inserting crank - connecting rod assembly, a second tongue - guiding rod, a second tongue - folding auxiliary member, and a second tongue - inserting auxiliary member are provided. A second folding - inserting assembly is provided on the second tongue - inserting crank - connecting rod assembly. The second tongue - guiding rod is located below the second tongue - folding auxiliary member, the second tongue - inserting auxiliary member is located above the second tongue - folding auxiliary member, and the second folding - inserting assembly is located between the second tongue - folding auxiliary member and the second tongue - inserting auxiliary member.

[0005] Furthermore, the base includes a bottom plate, on which side plates are provided. A top plate is connected to the side plates, and the top plate is parallel to the bottom plate. A tongue punching servo motor is provided on the bottom plate. The tongue punching crank and connecting rod assembly includes a tongue punching connecting block, a tongue punching connecting rod, a tongue punching rocker arm, and a spline shaft. The output shaft of the tongue punching servo motor is connected to the tongue punching connecting block. The two ends of the tongue punching connecting rod are respectively rotatably connected to the tongue punching connecting block and the tongue punching rocker arm. The tongue punching rocker arm is sleeved on the spline shaft, and the two ends of the spline shaft are respectively rotatably connected to the bottom plate and the top plate. The tongue punching part is connected to the spline shaft.

[0006] Furthermore, the first tongue inserting crank and connecting rod assembly includes a tongue inserting servo motor, a tongue inserting connecting block, a tongue inserting rocker arm, and a tongue inserting connecting rod. The output shaft of the tongue inserting servo motor is connected to the tongue inserting connecting rod. The two ends of the tongue inserting rocker arm are respectively rotatably connected to one end of the tongue inserting connecting rod and the tongue inserting connecting block. The other end of the tongue inserting connecting rod is rotatably connected to the first mounting seat.

[0007] Furthermore, the tongue blocking part includes a first tongue blocking part and a second tongue blocking part. The first tongue blocking part and the second tongue blocking part are arranged parallel to each other up and down. The first tongue blocking part and the second tongue blocking part respectively include a U-shaped section. One end of the U-shaped section is provided with a connecting end, and the other end of the U-shaped section extends in the conveying direction.

[0008] Furthermore, the first folding and inserting assembly and the second folding and inserting assembly respectively include a tongue folding part, a first tongue inserting part, and a second tongue inserting part. The tongue folding part, the first tongue inserting part, and the second tongue inserting part are arranged on the tongue inserting rocker arm in the conveying direction.

[0009] Furthermore, a first tongue guiding rod adjusting assembly and a first folding auxiliary part adjusting assembly are further provided on the first mounting seat. The first tongue guiding rod adjusting assembly and the first folding auxiliary part adjusting assembly respectively include a second handwheel, a second lead screw, a second slider, and a first connecting plate. The second handwheel is connected to the second lead screw. The second slider is sleeved on the second lead screw. The first connecting plate is connected to the second slider. The first tongue guiding rod is connected to the first connecting plate of the first tongue guiding rod adjusting assembly. The first tongue folding auxiliary part is connected to the first connecting plate of the first folding auxiliary part adjusting assembly.

[0010] Further: A second guide tongue rod adjusting assembly, a second folding auxiliary part adjusting assembly, and a second inserting tongue auxiliary part adjusting assembly are further provided on the second mounting seat. The second guide tongue rod adjusting assembly, the second folding auxiliary part adjusting assembly, and the second inserting tongue auxiliary part adjusting assembly respectively include a third handwheel, a third lead screw, a third slider, and a second connecting plate. The third handwheel is connected to the third lead screw. The third slider is sleeved on the third lead screw. The second connecting plate is connected to the third slider. The second guide tongue rod is connected to the second connecting plate of the second guide tongue rod adjusting assembly. The second folding tongue auxiliary part is connected to the second connecting plate of the second folding tongue auxiliary part adjusting assembly. The second inserting tongue auxiliary part is connected to the second connecting plate of the second inserting tongue auxiliary part adjusting assembly.

[0011] Further: The tongue hitting part includes a first tongue hitting part and a second tongue hitting part. The first tongue hitting part and the second tongue hitting part are arranged parallel to each other up and down. The ends of the first tongue hitting part and the second tongue hitting part are in an arc-shaped structure.

[0012] Further: A tongue hitting height adjusting mechanism is provided on the upper part of the side plate. The tongue hitting height adjusting mechanism includes a first handwheel, a first lead screw, a first slider, a support plate, and a first connecting plate. The first handwheel is connected to the first lead screw. The first slider is sleeved on the first lead screw. The support plate is fixedly connected to the first slider. The first connecting plate is connected to the support plate. And the first connecting plate is sleeved on the spline shaft. The first connecting plate and the support plate are connected by a bearing. The first tongue blocking part is arranged on the support plate. The second tongue blocking part is arranged on the side plate. The first tongue hitting part is arranged on the first connecting plate. The second tongue hitting part is arranged on the spline shaft through a second connecting plate.

[0013] Further: Both ends of the spline shaft are respectively connected to the bottom plate and the top plate through bearings. A connecting groove is provided on the side plate. The connecting end of the second tongue blocking part is fixed in the connecting groove.

[0014] Advantages of the present invention

[0015] Compared with the prior art, by arranging the first tongue - beating mechanism and the first tongue - inserting mechanism beside one side of the conveyor belt for folding one end of the carton, and arranging the second tongue - beating mechanism and the second tongue - inserting mechanism beside the other side of the conveyor belt for folding the other end of the carton, the tongue - blocking piece is used to fold the right tongue of one end of the carton and the left tongue of the other end of the carton inward. The tongue - beating crank - connecting rod assembly is used to drive the tongue - beating piece, and the left tongue of one end of the carton and the right tongue of the other end of the carton are folded inward by the tongue - beating piece. The first tongue - guiding rod is used to press the upper tongue downward. The first tongue - inserting crank - connecting rod assembly is used to drive the first folding - inserting assembly. The inserting tongue of the upper tongue is folded inward by 90° through the mutual cooperation of the first folding - inserting assembly and the first tongue - folding auxiliary piece. Then, the inserting tongue of the upper tongue abuts against the first tongue - inserting auxiliary piece and continues to be conveyed forward along the first tongue - inserting auxiliary piece. Through the first tongue - inserting auxiliary piece, the inward - folding angle of the inserting tongue can be kept at 90°. During the process of the inserting tongue continuing to be conveyed forward along the first tongue - inserting auxiliary piece, the first folding - inserting assembly pushes the upper tongue inward, so that the inserting tongue is inserted into the carton. At the same time, the second tongue - guiding rod is used to lift the lower tongue upward, and the second crank - connecting rod assembly is used to drive the second folding - inserting assembly. The inserting tongue of the lower tongue is folded inward by 90° through the mutual cooperation of the second folding - inserting assembly and the second tongue - folding auxiliary piece 43. Then, the inserting tongue of the lower tongue abuts against the bottom surface of the second tongue - inserting auxiliary piece and continues to be conveyed forward along the bottom surface of the second tongue - inserting auxiliary piece. Through the second tongue - inserting auxiliary piece, the inward - folding angle of the inserting tongue can be kept at 90°. During the process of the inserting tongue continuing to be conveyed forward along the second tongue - inserting auxiliary piece, the second folding - inserting assembly pushes the lower tongue inward, so that the inserting tongue is inserted into the carton. Thus, the whole process of carton folding can be completed, realizing automatic folding, improving work efficiency and reducing production costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 Schematic diagram of the connection structure of the present invention with the conveyor belt;

[0017] Figure 2 Schematic structure of the first tongue - beating mechanism of the present invention Figure 1 ;

[0018] Figure 3 Schematic structure of the first tongue - beating mechanism of the present invention Figure 2 ;

[0019] Figure 4 Schematic diagram of the structure of the second tongue - beating mechanism of the present invention;

[0020] Figure 5 Top view of the second tongue - beating mechanism of the present invention;

[0021] Figure 6 is Figure 5 Cross - sectional view taken along line A - A;

[0022] Figure 7 Schematic structure of the first tongue - inserting mechanism of the present invention Figure 1 ;

[0023] Figure 8 Structural schematic of the first tongue inserting mechanism of the present invention Figure 2 ;

[0024] Figure 9 Structural schematic of the second tongue inserting mechanism of the present invention Figure 1 ;

[0025] Figure 10 Structural schematic of the second tongue inserting mechanism of the present invention Figure 2 ;

[0026] Figure 11 Structural schematic diagram of the folding process of the paper box of the present invention.

[0027] Explanation of reference numerals: 1 - first tongue punching mechanism, 11 - base, 111 - bottom plate, 112 - side plate, 113 - top plate, 114 - connecting groove, 12 - tongue punching servo motor, 13 - tongue punching connecting block, 14 - tongue punching connecting rod, 15 - tongue punching rocker arm, 16 - spline shaft, 2 - second tongue punching mechanism, 3 - first tongue inserting mechanism, 31 - first mounting seat, 32 - first tongue guiding rod, 33 - first tongue folding auxiliary part, 34 - first tongue inserting auxiliary part, 4 - second tongue inserting mechanism, 41 - second mounting seat, 42 - second tongue guiding rod, 43 - second tongue folding auxiliary part, 44 - second tongue inserting auxiliary part, 51 - first tongue blocking part, 52 - second tongue blocking part, 53 - U-shaped section, 54 - connecting end, 61 - first tongue punching part, 62 - second tongue punching part, 71 - first hand wheel, 72 - first lead screw, 73 - first slider, 74 - support plate, 75 - first connecting plate, 76 - second connecting plate, 81 - tongue inserting motor, 82 - tongue inserting connecting block, 83 - tongue inserting rocker arm, 84 - tongue inserting connecting rod, 85 - tongue folding part, 86 - first tongue inserting part, 87 - second tongue inserting part, 91 - second hand wheel, 92 - second lead screw, 93 - second slider, 94 - first connecting plate, 95 - third hand wheel, 96 - third lead screw, 97 - third slider, 98 - second connecting plate, 10 - conveyor belt. Detailed implementation manner

[0028] Figures 1 - 10Schematic structural diagram of an embodiment of the folding device for a cartoning machine provided by the present invention, including a first tongue - beating mechanism 1, a second tongue - beating mechanism 2, a first tongue - inserting mechanism 3, and a second tongue - inserting mechanism 4. The first tongue - beating mechanism 1 and the first tongue - inserting mechanism 3 are arranged beside a conveyor belt 10 in the conveying direction, and the second tongue - beating mechanism 2 and the second tongue - inserting mechanism 4 are arranged beside the conveyor belt 10 on the other side in the conveying direction. The first tongue - beating mechanism 1 and the second tongue - beating mechanism 2 respectively include a base 11. A tongue - beating crank - connecting rod assembly and a tongue - blocking member are arranged on the base 11, and a tongue - beating member is arranged on the tongue - beating crank - connecting rod assembly. The first tongue - inserting mechanism 3 includes a first mounting seat 31. A first tongue - inserting crank - connecting rod assembly, a first tongue - guiding rod 32, a first tongue - folding auxiliary member 33, and a first tongue - inserting auxiliary member 34 are arranged on the first mounting seat 31. A first folding - inserting assembly is arranged on the first tongue - inserting crank - connecting rod assembly. The first tongue - guiding rod 32 is located above the first tongue - folding auxiliary member 33, the first tongue - inserting auxiliary member 34 is located below the first tongue - folding auxiliary member 33, and the first folding - inserting assembly is located between the first tongue - folding auxiliary member 33 and the first tongue - inserting auxiliary member 34. The second tongue - inserting mechanism 4 includes a second mounting seat 41. A second tongue - inserting crank - connecting rod assembly, a second tongue - guiding rod 42, a second tongue - folding auxiliary member 43, and a second tongue - inserting auxiliary member 44 are arranged on the second mounting seat 42. A second folding - inserting assembly is arranged on the second tongue - inserting crank - connecting rod assembly. The second tongue - guiding rod 42 is located below the second tongue - folding auxiliary member 43, the second tongue - inserting auxiliary member 44 is located above the second tongue - folding auxiliary member 43, and the second folding - inserting assembly is located between the second tongue - folding auxiliary member 43 and the second tongue - inserting auxiliary member 44.

[0029] Refer to Figure 11, one end of the paper box is provided with an upper tongue piece, the other end of the paper box is provided with a lower tongue piece, the ends of the upper tongue piece and the lower tongue piece are respectively insertion tongues, the two sides adjacent to the upper tongue piece are respectively provided with a left tongue piece and a right tongue piece, and the two sides adjacent to the lower tongue piece are respectively provided with a left tongue piece and a right tongue piece. The conveyor belt 10 is used to convey the paper box. The first tongue folding mechanism 1 and the first tongue inserting mechanism 3 are arranged beside the conveyor belt 10 to fold one end of the paper box. The second tongue folding mechanism 2 and the second tongue inserting mechanism 4 are arranged on the other side of the conveyor belt 10 to fold the other end of the paper box. The tongue blocking member is used to fold the right tongue piece at one end of the paper box and the left tongue piece at the other end of the paper box inward. The tongue folding crank-link assembly is used to drive the tongue folding member to fold the left tongue piece at one end of the paper box and the right tongue piece at the other end of the paper box inward through the tongue folding member. The first tongue guiding rod 32 is used to press the upper tongue piece downward. The first tongue inserting crank-link assembly is used to drive the first folding and inserting assembly to fold the insertion tongue of the upper tongue piece inward by 90° through the cooperation of the first folding and inserting assembly and the first tongue folding auxiliary member 33. Then, the insertion tongue of the upper tongue piece abuts against the first tongue inserting auxiliary member 34 and continues to be conveyed forward along the first tongue inserting auxiliary member 34. Through the first tongue inserting auxiliary member 34, the inward folding angle of the insertion tongue can be kept at 90°. During the process of the insertion tongue continuing to be conveyed forward along the first tongue inserting auxiliary member 34, the first folding and inserting assembly pushes the upper tongue piece inward to insert the insertion tongue into the paper box. At the same time, the second tongue guiding rod 42 is used to lift the lower tongue piece upward. The second crank-link assembly is used to drive the second folding and inserting assembly to fold the insertion tongue of the lower tongue piece inward by 90° through the cooperation of the second folding and inserting assembly and the second tongue folding auxiliary member 43. Then, the insertion tongue of the lower tongue piece abuts against the bottom surface of the second tongue inserting auxiliary member 44 and continues to be conveyed forward along the bottom surface of the second tongue inserting auxiliary member 44. Through the second tongue inserting auxiliary member 44, the inward folding angle of the insertion tongue can be kept at 90°. During the process of the insertion tongue continuing to be conveyed forward along the second tongue inserting auxiliary member 44, the second folding and inserting assembly pushes the lower tongue piece inward to insert the insertion tongue into the paper box, and the whole process of folding the paper box can be completed.

[0030] The base 11 includes a bottom plate 111, a side plate 112 is arranged on the bottom plate 111, a top plate 113 is connected to the side plate 112, and the top plate 113 is parallel to the bottom plate. A tongue folding servo motor 12 is arranged on the bottom plate 111. The tongue folding crank-link assembly includes a tongue folding connecting block 13, a tongue folding connecting rod 14, a tongue folding rocker arm 15, and a spline shaft 16. The output shaft of the tongue folding servo motor 12 is connected to the tongue folding connecting block 13. The two ends of the tongue folding connecting rod 14 are respectively rotatably connected to the tongue folding connecting block 13 and the tongue folding rocker arm 15. The two ends of the tongue folding connecting rod 14 are respectively rotatably connected to the tongue folding connecting block 13 and the tongue folding rocker arm 15 through bearings. The tongue folding rocker arm 15 is sleeved on the spline shaft 16. The two ends of the spline shaft 16 are respectively rotatably connected to the bottom plate 111 and the top plate 113. The tongue folding member is connected to the spline shaft 16.

[0031] The tongue stopper includes a first tongue stopper 51 and a second tongue stopper 52, which are arranged in parallel up and down. The first tongue stopper 51 and the second tongue stopper 52 respectively include a U-shaped section 53, one end of the U-shaped section 53 is provided with a connecting end 54, and the other end of the U-shaped section 53 extends in the conveying direction.

[0032] The tongue-twisting member includes a first tongue-twisting member 61 and a second tongue-twisting member 62 . The first tongue-twisting member 61 and the second tongue-twisting member 62 are arranged vertically and parallelly. The ends of the first tongue-twisting member 61 and the second tongue-twisting member 62 are in an arc-shaped structure.

[0033] During operation, when the paper box is conveyed forward by the conveyor belt 10, the right tongue piece at one end of the paper box contacts the first tongue stop piece 51 and the second tongue stop piece 52 of the first tongue-beating mechanism 1 and folds inward 90°, and the left tongue piece at the other end of the paper box contacts the first tongue stop piece 51 and the second tongue stop piece 52 of the second tongue-beating mechanism 2 and folds inward 90°. At the same time, the tongue-beating servo motor 12 drives the tongue-beating connecting block 13 to rotate, the tongue-beating connecting block 13 drives the tongue-beating connecting rod 14 to swing, the tongue-beating connecting rod 14 drives the tongue-beating rocker arm 15 to swing, and the tongue-beating rocker arm 15 drives the spline shaft 16 to rotate. The tongue-beating members swing back and forth inward and outward along with the spline shaft 16, and the first tongue-beating member 61 and the second tongue-beating member 62 of the first tongue-beating mechanism 1 push the left tongue piece at one end of the paper box to fold inward 90°, and the first tongue-beating member 61 and the second tongue-beating member 62 of the second tongue-beating mechanism 2 push the right tongue piece at the other end of the paper box to fold inward 90°. When the first tongue-beating member 61 and the second tongue-beating member 62 push the left tongue piece or the right tongue piece inward, the arc-shaped mechanisms at the ends of the first tongue-beating member 61 and the second tongue-beating member 62 respectively fit with the U-shaped sections 53 of the first tongue-blocking member 51 and the second tongue-blocking member 52.

[0034] A tongue-beating height adjustment mechanism is provided on the upper part of the side plate 112, and the tongue-beating height adjustment mechanism includes a first hand wheel 71, a first screw rod 72, a first slider 73, a support plate 74, and a first connecting plate 75. The first hand wheel 71 is connected to the first screw rod 72, the first slider 73 is sleeved on the first screw rod 72, the support plate 74 is fixedly connected to the first slider 73, the first connecting plate 75 is connected to the support plate 74, and the first connecting plate 75 is sleeved on the spline shaft 16, the first connecting plate 75 and the support plate 74 are connected by a bearing, the first tongue stopper 51 is arranged on the support plate 74, the second tongue stopper 52 is arranged on the side plate 112, the first tongue-beating member 61 is arranged on the first connecting plate 75, and the second tongue-beating member 62 is arranged on the spline shaft 16 through the second connecting plate 76. Both ends of the spline shaft 16 are connected to the bottom plate 111 and the top plate 113 through bearings respectively. A connecting groove 114 is provided on the side plate 112 , and the connecting end 54 of the second tongue stopper 52 is fixed in the connecting groove 114 .

[0035] When adjusting the height, rotate the first handwheel 71. The first slider 73 moves up and down along the first lead screw 72. The first slider 73 drives the support plate 74 and the first connection disk 75 to move. The first connection disk 75 moves up and down along the spline shaft 16. The first tongue blocking member 51 moves up and down with the support plate 74, and the first tongue hitting member 61 moves up and down with the first connection disk 75. Thus, the distance between the first tongue blocking member 51 and the second tongue blocking member 52, and the distance between the first tongue hitting member 61 and the second large tongue member 62 can be adjusted to meet different production requirements.

[0036] The first tongue inserting crank connecting rod assembly includes a tongue inserting servo motor 81, a tongue inserting connecting block 82, a tongue inserting rocker arm 83, and a tongue inserting connecting rod 84. The output shaft of the tongue inserting servo motor 81 is connected to the tongue inserting connecting rod 82. The two ends of the tongue inserting rocker arm 83 are respectively rotatably connected to one end of the tongue inserting connecting rod 84 and the tongue inserting connecting block 82. The other end of the tongue inserting connecting rod 84 is rotatably connected to the first mounting seat 31.

[0037] The second tongue inserting crank connecting rod assembly has the same structure as the first tongue inserting crank connecting rod assembly, including a tongue inserting servo motor 81, a tongue inserting connecting block 82, a tongue inserting rocker arm 83, and a tongue inserting connecting rod 84. The output shaft of the tongue inserting servo motor 81 is connected to the tongue inserting connecting rod 82. The two ends of the tongue inserting rocker arm 83 are respectively rotatably connected to one end of the tongue inserting connecting rod 84 and the tongue inserting connecting block 82. The other end of the tongue inserting connecting rod 84 is rotatably connected to the second mounting seat 41.

[0038] The first folding and inserting assembly and the second folding and inserting assembly respectively include a tongue folding member 85, a first tongue inserting member 86, and a second tongue inserting member 87. The tongue folding member 85, the first tongue inserting member 86, and the second tongue inserting member 87 are arranged on the tongue inserting rocker arm 83 in the conveying direction.

[0039] During the conveying process of the paper box, the tongue inserting servo motor 81 drives the tongue inserting connecting block 82 to rotate. The tongue inserting connecting block 82 drives the tongue inserting rocker arm 83 and the tongue inserting connecting rod 84 to swing. The tongue folding member 85, the first tongue inserting member 86, and the second tongue inserting member 87 swing with the tongue inserting rocker arm 83. First, the first tongue guiding member 32 presses the upper tongue piece downward. The tongue folding member 85 swings towards the direction close to the first tongue folding auxiliary member 33 and moves to the lower part of the first tongue folding auxiliary member 33. The tongue folding member 85 and the first tongue folding auxiliary member 33 cooperate to fold the inserting tongue of the upper tongue piece inward by 90°. Then, the inserting tongue of the upper tongue piece abuts against the first tongue inserting auxiliary member 34. During the process of continuing to be conveyed forward along the first tongue inserting auxiliary member 34, the first tongue inserting member 86 pushes the upper tongue piece inward and inserts the inserting tongue into the paper box. Then, the second tongue inserting member 87 continues to push the upper tongue piece inward to make the inserting tongue completely inserted into the paper box.

[0040] Meanwhile, the second tongue guide rod 42 lifts the lower tongue piece upward. The tongue folding member 85 swings and moves toward the second tongue folding auxiliary member 43 and stops below the second tongue folding auxiliary member 43. The tongue folding member 85 and the second tongue folding auxiliary member 43 fold the insertion tongue of the lower tongue piece inward by 90°. Then, as the insertion tongue of the lower tongue piece abuts against the bottom surface of the second insertion tongue auxiliary member 44 and continues to be conveyed forward along the second insertion tongue auxiliary member 44, the first insertion tongue member 86 pushes the lower tongue piece inward and inserts the insertion tongue into the paper box. Then, the second insertion tongue member 87 continues to push the lower tongue piece inward to completely insert the insertion tongue into the paper box, thus completing the whole process of paper box folding.

[0041] The first mounting seat 31 is further provided with a first tongue guide rod adjusting assembly and a first folding auxiliary member adjusting assembly. The first tongue guide rod adjusting assembly and the first folding auxiliary member adjusting assembly respectively include a second handwheel 91, a second lead screw 92, a second slider 93, and a first connecting plate 94. The second handwheel 91 is connected to the second lead screw 92. The second slider 93 is sleeved on the second lead screw 92. The first connecting plate 94 is connected to the second slider 93. The first tongue guide rod 32 is connected to the first connecting plate 94 of the first tongue guide rod adjusting assembly. The first tongue folding auxiliary member 33 is connected to the first connecting plate 94 of the first folding auxiliary member adjusting assembly.

[0042] During adjustment, rotate the second handwheel 91. The second slider 93 moves up and down along the second lead screw 92. The first connecting plate 94 moves up and down with the second slider 93, thereby driving the first tongue guide rod 32 and the first tongue folding auxiliary member 33 to move, realizing the height adjustment of the first tongue guide rod 32 and the second tongue folding auxiliary member 33 to adapt to different production requirements.

[0043] The second mounting seat 41 is further provided with a second tongue guide rod adjusting assembly, a second folding auxiliary member adjusting assembly, and a second insertion tongue auxiliary member adjusting assembly. The second tongue guide rod adjusting assembly, the second folding auxiliary member adjusting assembly, and the second insertion tongue auxiliary member adjusting assembly respectively include a third handwheel 95, a third lead screw 96, a third slider 97, and a second connecting plate 98. The third handwheel 95 is connected to the third lead screw 96. The third slider 97 is sleeved on the third lead screw 96. The second connecting plate 98 is connected to the third slider 97. The second tongue guide rod 42 is connected to the second connecting plate 98 of the second tongue guide rod adjusting assembly. The second tongue folding auxiliary member 43 is connected to the second connecting plate 98 of the second folding auxiliary member adjusting assembly. The second insertion tongue auxiliary member 44 is connected to the second connecting plate 98 of the second insertion tongue auxiliary member adjusting assembly.

[0044] During adjustment, rotate the third handwheel 95. The third slider 93 moves up and down along the third lead screw 97. The second connecting plate 98 moves up and down with the third slider 93, thereby driving the second tongue guide rod 42, the second tongue folding auxiliary member 43, and the second insertion tongue auxiliary member 44 to move, realizing the height adjustment of the second tongue guide rod 42, the second tongue folding auxiliary member 43, and the second insertion tongue auxiliary member 44 to adapt to different production requirements.

[0045] The above detailed description is a specific description of the feasible embodiments of the present invention. These embodiments are not intended to limit the patent scope of the present invention. Any equivalent implementation or modification without departing from the present invention shall be included in the patent scope of this case.

Claims

1. Folding device for a cartoning machine, characterized in that: It includes a first tongue-beating mechanism, a second tongue-beating mechanism, a first tongue-inserting mechanism, and a second tongue-inserting mechanism. The first tongue-beating mechanism and the first tongue-inserting mechanism are arranged beside the conveyor belt in the conveying direction, and the second tongue-beating mechanism and the second tongue-inserting mechanism are arranged beside the conveyor belt on the other side in the conveying direction. The first tongue-beating mechanism and the second tongue-beating mechanism respectively include a base. A tongue-beating crank-link assembly and a tongue-blocking member are arranged on the base. A tongue-beating member is arranged on the tongue-beating crank-link assembly. The first tongue-inserting mechanism includes a first mounting seat. A first tongue-inserting crank-link assembly, a first tongue-guiding rod, a first tongue-folding auxiliary member, and a first tongue-inserting auxiliary member are arranged on the first mounting seat. A first folding-inserting assembly is arranged on the first tongue-inserting crank-link assembly. The first tongue-guiding rod is located above the first tongue-folding auxiliary member. The first tongue-inserting auxiliary member is located below the first tongue-folding auxiliary member. The first folding-inserting assembly is located between the first tongue-folding auxiliary member and the first tongue-inserting auxiliary member. The second tongue-inserting mechanism includes a second mounting seat. A second tongue-inserting crank-link assembly, a second tongue-guiding rod, a second tongue-folding auxiliary member, and a second tongue-inserting auxiliary member are arranged on the second mounting seat. A second folding-inserting assembly is arranged on the second tongue-inserting crank-link assembly. The second tongue-guiding rod is located below the second tongue-folding auxiliary member. The second tongue-inserting auxiliary member is located above the second tongue-folding auxiliary member. The second folding-inserting assembly is located between the second tongue-folding auxiliary member and the second tongue-inserting auxiliary member; The base includes a bottom plate. Side plates are arranged on the bottom plate. A top plate is connected to the side plates, and the top plate is parallel to the bottom plate. A tongue-beating servo motor is arranged on the bottom plate. The tongue-beating crank-link assembly includes a tongue-beating connecting block, a tongue-beating connecting rod, a tongue-beating rocker arm, and a spline shaft. The output shaft of the tongue-beating servo motor is connected to the tongue-beating connecting block. The two ends of the tongue-beating connecting rod are respectively rotatably connected to the tongue-beating connecting block and the tongue-beating rocker arm. The tongue-beating rocker arm is sleeved on the spline shaft. The two ends of the spline shaft are respectively rotatably connected to the bottom plate and the top plate. The tongue-beating member is connected to the spline shaft; The tongue-blocking member includes a first tongue-blocking member and a second tongue-blocking member. The first tongue-blocking member and the second tongue-blocking member are arranged parallel to each other up and down. The first tongue-blocking member and the second tongue-blocking member respectively include a U-shaped section. One end of the U-shaped section is provided with a connecting end, and the other end of the U-shaped section extends in the conveying direction; The tongue-beating member includes a first tongue-beating member and a second tongue-beating member. The first tongue-beating member and the second tongue-beating member are arranged parallel to each other up and down. The ends of the first tongue-beating member and the second tongue-beating member are in an arc-shaped structure; A tongue punching height adjustment mechanism is provided at the upper part of the side plate. The tongue punching height adjustment mechanism includes a first handwheel, a first lead screw, a first slider, a support plate, and a first connection plate. The first handwheel is connected to the first lead screw. The first slider is sleeved on the first lead screw. The support plate is fixedly connected to the first slider. The first connection plate is connected to the support plate and is sleeved on the spline shaft. The first connection plate and the support plate are connected by a bearing. The first tongue blocking member is provided on the support plate. The second tongue blocking member is provided on the side plate. The first tongue punching member is provided on the first connection plate. The second tongue punching member is provided on the spline shaft through a second connection plate.

2. The folding device for the cartoning machine according to claim 1, characterized in that: The first tongue inserting crank and connecting rod assembly includes a tongue inserting servo motor, a tongue inserting connecting block, a tongue inserting rocker arm, and a tongue inserting connecting rod. The output shaft of the tongue inserting servo motor is connected to the tongue inserting connecting rod. The two ends of the tongue inserting rocker arm are respectively rotatably connected to one end of the tongue inserting connecting rod and the tongue inserting connecting block. The other end of the tongue inserting connecting rod is rotatably connected to the first mounting seat.

3. The folding device for the cartoning machine according to claim 2, characterized in that: The first folding and inserting assembly and the second folding and inserting assembly respectively include a tongue folding member, a first tongue inserting member, and a second tongue inserting member. The tongue folding member, the first tongue inserting member, and the second tongue inserting member are arranged on the tongue inserting rocker arm in the conveying direction.

4. The folding device for the case packing machine according to claim 3, wherein: A first tongue guiding rod adjustment assembly and a first folding auxiliary member adjustment assembly are further provided on the first mounting seat. The first tongue guiding rod adjustment assembly and the first folding auxiliary member adjustment assembly respectively include a second handwheel, a second lead screw, a second slider, and a first connecting plate. The second handwheel is connected to the second lead screw. The second slider is sleeved on the second lead screw. The first connecting plate is connected to the second slider. The first tongue guiding rod is connected to the first connecting plate of the first tongue guiding rod adjustment assembly. The first tongue folding auxiliary member is connected to the first connecting plate of the first folding auxiliary member adjustment assembly.

5. The folding device for the cartoning machine according to claim 4, characterized in that: A second tongue guiding rod adjustment assembly, a second folding auxiliary member adjustment assembly, and a second tongue inserting auxiliary member adjustment assembly are further provided on the second mounting seat. The second tongue guiding rod adjustment assembly, the second folding auxiliary member adjustment assembly, and the second tongue inserting auxiliary member adjustment assembly respectively include a third handwheel, a third lead screw, a third slider, and a second connecting plate. The third handwheel is connected to the third lead screw. The third slider is sleeved on the third lead screw. The second connecting plate is connected to the third slider. The second tongue guiding rod is connected to the second connecting plate of the second tongue guiding rod adjustment assembly. The second tongue folding auxiliary member is connected to the second connecting plate of the second tongue folding auxiliary member adjustment assembly. The second tongue inserting auxiliary member is connected to the second connecting plate of the second tongue inserting auxiliary member adjustment assembly.

6. The folding device for the case-packing machine according to claim 5, characterized in that: Both ends of the spline shaft are respectively connected to the bottom plate and the top plate through bearings. A connecting groove is provided on the side plate. The connecting end of the second tongue blocking member is fixed in the connecting groove.

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