Automatic paper bag stacking machine and its use method

Abstract

The present invention relates to the technical field of paper bag stacking machines, and specifically to an automatic upper and lower paper bag stacking machine and a method for using the same, comprising a machine base, the upper surface of the machine base being rotatably connected to an electric roller, the surface of the electric roller being transmission-connected to a conveyor belt, the surface of the machine base being fixedly connected to a sorting mechanism, the other end of the machine base being rotatably connected to a cross tray, the side of the electric roller being fixedly connected to a speed change mechanism, the side of the machine base being rotatably connected to a rotating mechanism, the surface of the cross tray being provided with a fixing mechanism, and the other side of the machine base being provided with a stacking mechanical arm. In the present invention, when the cross tray is rotated again, the connecting rod performs a circular motion, which drives the fixed plate to slide past the upper end of the sliding plate, and then contacts the inclined plate, and the pressing plate is tilted by the connecting rod, so that the paper bags can be stacked in groups in a cycle, thereby improving efficiency.

Description

Technical Field

[0001] The invention relates to the technical field of paper bag stacking machines, in particular to an automatic upper and lower paper bag stacking machine and a use method thereof. Background Art

[0002] The bag stacking machine can quickly and automatically stack the produced paper bags neatly during the paper bag manufacturing process, greatly saving the time and labor of manual bag stacking, thereby significantly improving the overall production efficiency. For example, in a large paper bag production plant, the bag stacking work that originally required several workers to spend several hours to complete can be completed in a short time after using the bag stacking machine.

[0003] In the prior art, paper bags are basically stacked without layers. They are placed in a pile and then need to be stacked manually in groups, such as ten or twenty bags per group. This is very labor-intensive and time-consuming, and reduces work efficiency. Summary of the invention

[0004] The purpose of the present invention is to provide an automatic paper bag stacking machine and a method of using the same, so as to solve the problems raised in the above background technology. To achieve the above purpose, the present invention provides the following technical solutions: an automatic paper bag stacking machine, comprising a machine base, the upper surface of the machine base is rotatably connected to a motorized roller, the surface of the motorized roller is transmission-connected to a conveyor belt, the surface of the machine base is fixedly connected to a sorting mechanism, the other end of the machine base is rotatably connected to a cross tray, the side of the motorized roller is fixedly connected to a speed change mechanism, the side of the machine base is rotatably connected to a rotating mechanism, the surface of the cross tray is provided with a fixing mechanism, and the other side of the machine base is provided with a stacking mechanical arm.

[0005] Preferably, the finishing mechanism includes a mating platform, the mating platform is fixedly connected to the surface of the machine base, the mating platform is rotatably connected to a worm gear inside, the side of the electric roller is fixedly connected to a rotating rod, a transmission belt is transmitted between the rotating rod and the side of the worm gear, the mating platform is rotatably connected to a rotating rod inside, the surface of the rotating rod is fixedly connected to a turbine, the surface of the rotating rod is sleeved with a hollow rod, the interior of the hollow rod is slidably connected to a sliding rod, the interior of the sliding rod is fixedly connected to a round rod, the surface of the rotating rod is fixedly connected to a spiral sheet, a spring is arranged inside the hollow rod, the other side of the sliding rod is fixedly connected to a push plate, the other side of the worm gear is fixedly connected to a semi-bevel gear, and the other rotation of the machine base is connected to a bevel gear.

[0006] Preferably, the speed change mechanism includes a rotating rod 1, which is fixed to the other side of the electric roller, and the side of the machine base is fixedly connected with a double slide rail, the surface of the rotating rod 1 is slidably connected with a step conical tube, the side of the step conical tube is fixedly connected with a baffle, the other side of the baffle is rotatably connected to a limit rod, the lower end of the limit rod is fixedly connected with a sliding sleeve, the other side of the double slide rail is fixedly connected with a limit plate, the internal thread of the limit plate is connected with a screw, and the surface of the limit plate is provided with a scale.

[0007] Preferably, the rotating mechanism includes a roller, which is rotatably connected to the side of the machine base, and a transmission belt is connected between the roller and the stepped conical tube. An L-shaped rod is fixedly connected to the surface of the roller, and an intermittent wheel is fixedly connected to one end of the cross tray rotating shaft, and the L-shaped rod is meshed with the intermittent wheel.

[0008] Preferably, the fixing mechanism includes an annular slide groove, which is opened on the inner wall surface of the machine base, a connecting rod is slidably connected inside the annular slide groove, the other end of the connecting rod is fixedly connected to a pressure plate, the other end of the pressure plate is rotatably connected to the side of the cross tray, the surface of the connecting rod is fixedly connected to a fixing plate, a slide groove is opened inside the annular slide groove, a sliding plate is slidably connected inside the slide groove, a spring is arranged inside the slide groove, an inclined plate is fixedly connected to the surface of the annular slide groove, and an arc plate is fixedly connected to the surface of the annular slide groove.

[0009] Preferably, the turbine is meshed with the worm, the spring is located between the inside of the hollow rod and the other side of the slide rod, and the semi-bevel gear is meshed with the bevel gear.

[0010] Preferably, the sliding sleeve is slidably connected to the surface of the double sliding rails, and the other end of the screw rod is rotationally connected to the surface of the sliding sleeve.

[0011] A method for using an automatic paper bag stacking machine, comprising the following steps:

[0012] S. First, the paper bags are transported and stacked by a conveyor belt, and the conveyor belt is driven by an electric roller. When the electric roller rotates, it drives the rotating rod to rotate. When the rotating rod rotates, it is transmitted to the worm through a transmission belt. The worm rotates inside the matching platform. When the worm rotates, it drives the meshing turbine to rotate. The turbine rotates inside the matching platform through the rotating rod. When the rotating rod rotates, it drives the spiral sheet fixed on the surface to rotate. When the spiral sheet rotates, it squeezes the round rod. When the round rod is squeezed, it slides inward on the surface of the spiral sheet, and at the same time drives the sliding rod to slide inward inside the hollow rod;

[0013] S. When the round rod slides to the bottom end of the spiral piece, it will separate from the spiral piece, and then there will be a gap between the two spiral pieces. At this time, the spring will instantly pop out the slide bar. When the slide bar pops out, it drives the push plate to slide and push it toward the paper bag. The paper bag will fall onto the cross tray on the conveyor belt, and then the front of several paper bags will be leveled. At the same time, when the worm rotates, it drives the semi-bevel gear on the other side to rotate. When the semi-bevel gear rotates, it drives the bevel gear to rotate. When the bevel gear rotates, it is the same as the above principle, driving the push plate on the side to slide out and level the side of the paper bag. In this way, several paper bags can be leveled in turn.

[0014] S. Before that, when the paper bags need to be stacked in a group, the screw can be twisted first, and the screw rotates on the internal thread of the limit plate. At the same time, when the screw rotates, it will point to the scale, thereby showing how many paper bags the conveyor belt will transport, and the other end of the screw rotates on the side of the sliding sleeve, and pushes or pulls the sliding sleeve to slide on the surface of the double slide rail. When the sliding sleeve slides, it drives the limit rod to move on the surface of the rotating rod, and the limit rod universal baffle drives the stepped tapered tube to move at the same time. When the stepped tapered tube moves, it will make the transmission belt 2 move on the surface of the stepped tapered tube, and change the rotation axis of the transmission belt 2 according to the position of the stepped tapered tube, thereby adjusting the rotation speed of the transmission belt 2, and preparing for group stacking;

[0015] S. When the electric roller rotates, it drives the rotating rod 1 on the other side to rotate. When the rotating rod 1 rotates, it drives the stepped conical tube on the surface to rotate. The stepped conical tube drives the transmission belt 2 to the rotating roller according to the pre-adjusted position. The rotating roller also rotates according to the speed of the transmission belt 2, and drives the L-shaped rod on the surface to rotate. When the L-shaped rod rotates, it drives the intermittent wheel to rotate. When the intermittent wheel rotates, it drives the cross tray to rotate. At this time, one side of the cross tray has already stacked a group of paper bags. Then the cross tray rotates to continue stacking the next group of paper bags.

[0016] S. When the cross pallet rotates, it will drive the pressure plate to rotate at the same time, and the other end of the pressure plate will rotate inside the annular slide groove through the connecting rod. First, when the pressure plate close to the paper bag rotates, the fixed plate at the lower end of the connecting rod will block the sliding plate to prevent the pressure plate from rotating, and the pressure plate will rotate on the inside of the cross pallet. When the cross pallet rotates, the side with the paper bag will fit with the pressure plate, thereby pressing the paper bag. Then, when the cross pallet rotates again, the connecting rod will make a circular motion, which will drive the fixed plate to slide over the upper end of the sliding plate, and then contact the inclined plate, and tilt the pressure plate through the connecting rod. In this way, the paper bags can be stacked in groups in a cycle. At this time, all the paper bags will be placed on the stacking robot arm, and finally stacked by the stacking robot arm.

[0017] In the present invention, when the cross tray rotates again, the connecting rod makes a circular motion, which drives the fixed plate to slide over the upper end of the sliding plate and then contact the inclined plate. The pressing plate is tilted by the connecting rod, so that the paper bags can be stacked in groups in a cycle, which can improve efficiency.

[0018] In the present invention, when the L-shaped rod rotates, the intermittent wheel is driven to rotate, and when the intermittent wheel rotates, the cross tray is driven to rotate. At this time, a group of paper bags have been stacked on one side of the cross tray, and then the cross tray rotates to continue to stack the next group of paper bags, thereby realizing cyclic stacking.

[0019] In the present invention, when the round rod slides to the bottom end of the spiral piece, it will be separated from the spiral piece, and then there will be a gap between the two spiral pieces. At this time, the spring will instantly pop out the sliding rod, and when the sliding rod pops out, it drives the push plate to slide and push toward the paper bag. The paper bag will fall onto the cross tray on the conveyor belt, and then the front sides of several paper bags will be straightened and flattened for later stacking. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a schematic diagram of the three-dimensional appearance of the present invention;

[0021] Figure 2 It is a schematic diagram of the side structure of the present invention;

[0022] Figure 3 It is a schematic diagram of the side cross-sectional structure of the finishing mechanism of the present invention;

[0023] Figure 4 For the present invention Figure 3 A is a schematic diagram of the enlarged structure of the middle part;

[0024] Figure 5 It is a schematic diagram of the side cross-sectional structure of the hollow rod of the present invention;

[0025] Figure 6 It is a structural schematic diagram of one end of the machine base of the present invention;

[0026] Figure 7 For the present invention Figure 6 Schematic diagram of the enlarged structure of B;

[0027] Figure 8 It is a schematic diagram of the structure of the speed change mechanism of the present invention;

[0028] Fig. 9 It is a schematic diagram of the back structure of the stepped tapered tube of the present invention;

[0029] Fig.10 It is a schematic diagram of the structure of the rotating mechanism of the present invention;

[0030] Fig.11 This is a schematic diagram of the internal structure of the cross tray of the present invention;

[0031] Fig.12 It is a schematic diagram of the pressing plate and other structures of the present invention;

[0032] Fig.13 It is a structural schematic diagram of the fixing mechanism of the present invention;

[0033] Fig.14 For the present invention Fig.13 Schematic diagram of the enlarged structure of C in the figure.

[0034] In the figure: 1, machine base; 2, electric roller; 3, conveyor belt; 4, sorting mechanism; 5, cross tray; 6, speed change mechanism; 7, rotating mechanism; 8, fixing mechanism; 9, stacking robot arm; 41, matching platform; 42, worm; 43, rotating rod; 44, transmission belt 1; 45, rotating rod; 46, turbine; 47, hollow rod; 48, sliding rod; 49, round rod; 410, spiral sheet; 411, spring; 412, push plate; 413, semi-bevel gear; 41 4. Bevel gear; 61. Rotating rod 1; 62. Double slide rails; 63. Step tapered tube; 64. Baffle; 65. Limit rod; 66. Sleeve; 67. Limit plate; 68. Screw; 69. Scale; 71. Rotating roller; 72. L-shaped rod; 73. Intermittent wheel; 74. Transmission belt 2; 81. Annular slide groove; 82. Connecting rod; 83. Pressure plate; 84. Fixed plate; 85. Slide groove; 86. Sliding plate; 87. Spring 1; 88. Inclined plate; 89. Arc plate. DETAILED DESCRIPTION

[0035] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technical personnel in this field without creative work are within the scope of protection of the present invention.

[0036] See also Figures 1 to 14 The present invention provides a technical solution: an automatic upper and lower bag stacking machine for paper bags, comprising a machine base 1, a motorized roller 2 is rotatably connected to the upper surface of the machine base 1, a conveyor belt 3 is transmission-connected to the surface of the motorized roller 2, a sorting mechanism 4 is fixedly connected to the surface of the machine base 1, a cross tray 5 is rotatably connected to the other end of the machine base 1, a speed change mechanism 6 is fixedly connected to the side of the motorized roller 2, a rotating mechanism 7 is rotatably connected to the side of the machine base 1, a fixing mechanism 8 is arranged on the surface of the cross tray 5, and a stacking mechanical arm 9 is arranged on the other side of the machine base 1.

[0037] The finishing mechanism 4 includes a mating platform 41, which is fixedly connected to the surface of the machine base 1, and a worm 42 is rotatably connected inside the mating platform 41. A rotating rod 43 is fixedly connected to the side of the electric roller 2, and a transmission belt 44 is connected between the rotating rod 43 and the side of the worm 42. A rotating rod 45 is rotatably connected inside the mating platform 41, and a turbine 46 is fixedly connected to the surface of the rotating rod 45. A hollow rod 47 is sleeved on the surface of the rotating rod 45, and a sliding rod 48 is slidably connected inside the hollow rod 47. A round rod 49 is fixedly connected inside the sliding rod 48, and a spiral sheet 410 is fixedly connected to the surface of the rotating rod 45. A spring 411 is arranged inside the hollow rod 47, and a push plate 412 is fixedly connected to the other side of the sliding rod 48. The worm The other side of 42 is fixedly connected with a semi-bevel gear 413, and the other rotation of the base 1 is connected with a bevel gear 414. The turbine 46 is meshed with the worm 42, and the spring 411 is located between the inside of the hollow rod 47 and the other side of the slide bar 48. The semi-bevel gear 413 is meshed with the bevel gear 414. In the present invention, when the round rod 49 slides to the bottom end of the spiral piece 410, it will be separated from the spiral piece 410, and then there will be a gap between the two spiral pieces 410. At this time, the spring 411 will instantly pop out the slide bar 48. When the slide bar 48 pops out, it drives the push plate 412 to slide and push it toward the paper bag. The paper bag will fall onto the cross tray 5 on the conveyor belt 3, and then the front sides of several paper bags will be straightened and flattened for later stacking.

[0038] The speed change mechanism 6 includes a rotating rod 61, which is fixed to the other side of the electric roller 2. A double slide rail 62 is fixedly connected to the side of the base 1. A stepped tapered tube 63 is slidably connected to the surface of the rotating rod 61. A baffle 64 is fixedly connected to the side of the stepped tapered tube 63. The other side of the baffle 64 is rotatably connected to a limit rod 65. The lower end of the limit rod 65 is fixedly connected to a sliding sleeve 66. The other side of the double slide rail 62 is fixedly connected to a limit plate 67. The inner thread of the limit plate 67 is connected to a screw 68. A scale 69 is provided on the surface of the limit plate 67. The rotating mechanism 7 includes a roller 71. The roller 71 is rotatably connected to the side of the base 1. The roller 71 A transmission belt 74 is connected to the stepped conical tube 63 for transmission. An L-shaped rod 72 is fixedly connected to the surface of the rotating roller 71. An intermittent wheel 73 is fixedly connected to one end of the rotating shaft of the cross tray 5. The L-shaped rod 72 is meshed with the intermittent wheel 73. The sliding sleeve 66 is slidably connected to the surface of the double slide rail 62. The other end of the screw rod 68 is rotatably connected to the surface of the sliding sleeve 66. When the L-shaped rod 72 rotates, the intermittent wheel 73 is driven to rotate. When the intermittent wheel 73 rotates, the cross tray 5 is driven to rotate. At this time, a group of paper bags have been stacked on one side of the cross tray 5. After the cross tray 5 rotates, the next group of paper bags can be stacked to achieve cyclic stacking.

[0039] The fixing mechanism 8 includes an annular slide groove 81, which is provided on the inner wall surface of the machine base 1. A connecting rod 82 is slidably connected inside the annular slide groove 81. The other end of the connecting rod 82 is fixedly connected to a pressing plate 83. The other end of the pressing plate 83 is rotatably connected to the side of the cross tray 5. A fixing plate 84 is fixedly connected to the surface of the connecting rod 82. A slide groove 85 is provided inside the annular slide groove 81. A sliding plate 86 is slidably connected inside the slide groove 85. A spring 87 is arranged inside the slide groove 85. An inclined plate 88 is fixedly connected to the surface of the annular slide groove 81. An arc plate 89 is fixedly connected to the surface of the annular slide groove 81. When the cross tray 5 rotates again, the connecting rod 82 makes a circular motion, which will drive the fixing plate 84 to slide over the upper end of the sliding plate 86 and then contact the inclined plate 88. The pressing plate 83 is tilted by the connecting rod 82, so that the paper bags can be stacked in groups in a cycle, which can improve efficiency.

[0040] The use method and advantages of the present invention: The automatic paper bag stacking machine and its use method, when in use, the working process is as follows:

[0041] like Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 , Figure 6 , Figure 7 , Figure 8 , Fig. 9 , Fig.10 , Fig.11 , Fig.12 , Fig.13 , Fig.14 As shown;

[0042] S1. First, paper bags are transported and stacked by the conveyor belt 3, and the conveyor belt 3 is driven by the electric roller 2. When the electric roller 2 rotates, it drives the rotating rod 43 to rotate. When the rotating rod 43 rotates, it is transmitted to the worm 42 through the transmission belt 1 44. The worm 42 rotates inside the matching platform 41. When the worm 42 rotates, it drives the meshing turbine 46 to rotate. The turbine 46 rotates inside the matching platform 41 through the rotating rod 45. When the rotating rod 45 rotates, it drives the spiral sheet 410 fixed on the surface to rotate. When the spiral sheet 410 rotates, it squeezes the round rod 49. When the round rod 49 is squeezed, it slides inward on the surface of the spiral sheet 410, and at the same time drives the sliding rod 48 to slide inward inside the hollow rod 47;

[0043] S2. When the round rod 49 slides to the bottom end of the spiral piece 410, it will separate from the spiral piece 410, and then there will be a gap between the two spiral pieces 410. At this time, the spring 411 will instantly pop out the slide bar 48. When the slide bar 48 pops out, it drives the push plate 412 to slide and push toward the paper bag. The paper bag will fall onto the cross tray 5 on the conveyor belt 3, and then the front sides of the paper bags will be smoothed. At the same time, when the worm 42 rotates, it drives the semi-bevel gear 413 on the other side to rotate. When the semi-bevel gear 413 rotates, it drives the bevel gear 414 to rotate. When the bevel gear 414 rotates, it is the same as the above principle, driving the side push plate 412 to slide out and smooth the side of the paper bag. In this way, several paper bags can be smoothed in turn, which is convenient for stacking later.

[0044] S3. Before that, when the paper bags need to be stacked in a group, the screw 68 can be twisted first. The screw 68 rotates on the internal thread of the limit plate 67. At the same time, when the screw 68 rotates, it will point to the scale 69, thereby showing how many paper bags the conveyor belt 3 will transport. The other end of the screw 68 rotates on the side of the sliding sleeve 66, and pushes or pulls the sliding sleeve 66 to slide on the surface of the double slide rail 62. When the sliding sleeve 66 slides, it drives the limit rod 65 to move on the surface of the rotating rod 1 61. The limit rod 65 universal baffle 64 drives the stepped tapered tube 63 to move at the same time. When the stepped tapered tube 63 moves, the transmission belt 2 74 moves on the surface of the stepped tapered tube 63, and the rotation axis of the transmission belt 2 74 is changed according to the position of the stepped tapered tube 63, thereby adjusting the rotation speed of the transmission belt 2 74 to prepare for group stacking.

[0045] S4, when the electric roller 2 rotates, it drives the rotating rod 1 61 on the other side to rotate, and when the rotating rod 1 61 rotates, it drives the stepped tapered tube 63 on the surface to rotate, and the stepped tapered tube 63 drives the transmission belt 2 74 to transmit to the rotating roller 71 according to the pre-adjusted position, and the rotating roller 71 also rotates according to the speed of the transmission belt 2 74, and drives the L-shaped rod 72 on the surface to rotate, and when the L-shaped rod 72 rotates, it drives the intermittent wheel 73 to rotate, and when the intermittent wheel 73 rotates, it drives the cross tray 5 to rotate. At this time, one side of the cross tray 5 has already stacked a group of paper bags, and then the cross tray 5 rotates to continue to stack the next group of paper bags, so as to realize cyclic stacking;

[0046] S5. When the cross tray 5 rotates, the pressure plate 83 will be driven to rotate at the same time, and the other end of the pressure plate 83 will rotate inside the annular slide groove 81 through the connecting rod 82. First, when the pressure plate 83 close to the paper bag rotates, the fixed plate 84 at the lower end of the connecting rod 82 will block the sliding plate 86, thereby preventing the pressure plate 83 from rotating, and the pressure plate 83 will rotate on the inner side of the cross tray 5. When the cross tray 5 rotates, the side with the paper bag will fit with the pressure plate 83, thereby pressing the paper bag to prevent position displacement. Then, when the cross tray 5 rotates again, the connecting rod 82 makes a circular motion, which will drive the fixed plate 84 to slide from the upper end of the sliding plate 86, and then contact with the inclined plate 88, and the pressure plate 83 is tilted through the connecting rod 82, so that the paper bags can be stacked in groups in a cycle. At this time, all the paper bags will be placed on the stacking robot arm 9, and finally stacked by the stacking robot arm 9, which can improve efficiency.

[0047] The above shows and describes the basic principles, main features and advantages of the present invention. Technical personnel in this industry should understand that the present invention is not limited to the above embodiments. The above embodiments and descriptions are only preferred examples of the present invention and are not used to limit the present invention. Without departing from the spirit and scope of the present invention, the present invention may have various changes and improvements, which fall within the scope of the present invention to be protected. The scope of protection of the present invention is defined by the attached claims and their equivalents.

Claims

1. An automatic paper bag stacking machine, comprising a machine base (1), characterized in that: The upper surface of the machine base (1) is rotatably connected to a motorized roller (2), the surface of the motorized roller (2) is transmission-connected to a conveyor belt (3), the surface of the machine base (1) is fixedly connected to a sorting mechanism (4), the other end of the machine base (1) is rotatably connected to a cross pallet (5), the side of the motorized roller (2) is fixedly connected to a speed change mechanism (6), the side of the machine base (1) is rotatably connected to a rotating mechanism (7), the surface of the cross pallet (5) is provided with a fixing mechanism (8), and the other side of the machine base (1) is provided with a stacking mechanical arm (9); The finishing mechanism (4) comprises a mating platform (41), the mating platform (41) being fixedly connected to the surface of the machine base (1), the mating platform (41) being internally rotatably connected to a worm (42), the side of the electric roller (2) being fixedly connected to a rotating rod (43), a transmission belt (44) being transmission-connected between the rotating rod (43) and the side of the worm (42), the mating platform (41) being internally rotatably connected to a rotating rod (45), the surface of the rotating rod (45) being fixedly connected to a turbine (46), the surface of the rotating rod (45) being sleeved with a hollow rod (47), the hollow rod (47) being internally slidably connected to a sliding rod (48), the sliding rod (48) being internally slidably connected to the rotating rod (45 ... A round rod (49) is fixedly connected inside the rod (48), a spiral sheet (410) is fixedly connected to the surface of the rotating rod (45), a spring (411) is arranged inside the hollow rod (47), a push plate (412) is fixedly connected to the other side of the sliding rod (48), a semi-bevel gear (413) is fixedly connected to the other side of the worm (42), a bevel gear (414) is connected to the other rotation of the base (1), the turbine (46) is meshed with the worm (42), the spring (411) is located between the inside of the hollow rod (47) and the other side of the sliding rod (48), and the semi-bevel gear (413) is meshed with the bevel gear (414); The speed change mechanism (6) comprises a rotating rod (61), wherein the rotating rod (61) is fixed to the other side of the electric roller (2), a double slide rail (62) is fixedly connected to the side of the machine base (1), a stepped tapered tube (63) is slidably connected to the surface of the rotating rod (61), a baffle (64) is fixedly connected to the side of the stepped tapered tube (63), the other side of the baffle (64) is rotatably connected to a limit rod (65), the lower end of the limit rod (65) is fixedly connected to a sliding sleeve (66), the other side of the double slide rail (62) is fixedly connected to a limit plate (67), the inner thread of the limit plate (67) is connected to a screw rod (68), a scale (69) is provided on the surface of the limit plate (67), the sliding sleeve (66) is slidably connected to the surface of the double slide rail (62), and the other end of the screw rod (68) is rotatably connected to the surface of the sliding sleeve (66).

2. The automatic paper bag stacking machine according to claim 1, characterized in that: The rotating mechanism (7) comprises a roller (71) which is rotatably connected to the side of the machine base (1); a second transmission belt (74) is transmission-connected between the roller (71) and the stepped conical tube (63); an L-shaped rod (72) is fixedly connected to the surface of the roller (71); an intermittent wheel (73) is fixedly connected to one end of the rotating shaft of the cross tray (5); and the L-shaped rod (72) is meshed with the intermittent wheel (73).

3. The automatic paper bag stacking machine according to claim 1, characterized in that: The fixing mechanism (8) comprises an annular slide groove (81), wherein the annular slide groove (81) is provided on the inner wall surface of the machine base (1), a connecting rod (82) is slidably connected inside the annular slide groove (81), the other end of the connecting rod (82) is fixedly connected to a pressure plate (83), the other end of the pressure plate (83) is rotatably connected to the side of the cross tray (5), a fixing plate (84) is fixedly connected to the surface of the connecting rod (82), a slide groove (85) is provided inside the annular slide groove (81), a sliding plate (86) is slidably connected inside the slide groove (85), a spring 1 (87) is arranged inside the slide groove (85), an inclined plate (88) is fixedly connected to the surface of the annular slide groove (81), and an arc plate (89) is fixedly connected to the surface of the annular slide groove (81).

4. A method for using the automatic paper bag stacking machine according to any one of claims 1 to 3, characterized in that: The following steps are involved: S1. First, paper bags are transported and stacked by a conveyor belt (3), and the conveyor belt (3) is driven by an electric roller (2). When the electric roller (2) rotates, it drives the rotating rod (43) to rotate. When the rotating rod (43) rotates, it is transmitted to the worm (42) through a transmission belt (44). The worm (42) rotates inside the matching platform (41). When the worm (42) rotates, it drives the meshing turbine (46) to rotate. The turbine (46) rotates inside the matching platform (41) through a rotating rod (45). When the rotating rod (45) rotates, it drives the spiral sheet (410) fixed on the surface to rotate. When the spiral sheet (410) rotates, it squeezes the round rod (49). When the round rod (49) is squeezed, it slides inward on the surface of the spiral sheet (410), and at the same time drives the sliding rod (48) to slide inward inside the hollow rod (47); S2. When the round rod (49) slides to the bottom end of the spiral sheet (410), it will separate from the spiral sheet (410), and then there will be a gap between the two spiral sheets (410). At this time, the spring (411) will instantly pop out the slide bar (48). When the slide bar (48) pops out, it drives the push plate (412) to slide and push toward the paper bag. The paper bag will fall onto the cross tray (5) on the conveyor belt (3), and then the front sides of several paper bags will be straightened. At the same time, when the worm (42) rotates, it drives the semi-bevel gear (413) on the other side to rotate. When the semi-bevel gear (413) rotates, it drives the bevel gear (414) to rotate. When the bevel gear (414) rotates, it drives the worm (42) to rotate. The worm (42) drives the turbine (46) to rotate. The wheel (46) drives the rotating rod (45) to rotate. When the rotating rod (45) rotates, it drives the spiral sheet (410) fixed on the surface to rotate. When the spiral sheet (410) rotates, it squeezes the round rod (49). When the round rod (49) is squeezed, it slides inward on the surface of the spiral sheet (410), and at the same time drives the sliding rod (48) to slide inward inside the hollow rod (47). When the round rod (49) slides to the bottom end of the spiral sheet (410), it separates from the spiral sheet (410). Then, there is a gap between the two spiral sheets (410). At this time, the spring (411) will instantly pop out the sliding rod (48). The sliding rod (48) drives the side push plate (412) to slide out, and the side of the paper bag is flattened. In this way, a plurality of paper bags can be arranged and flattened in sequence. S3. Before that, when the paper bags need to be stacked in a group, the screw rod (68) can be twisted first, and the screw rod (68) rotates on the internal thread of the limit plate (67). At the same time, when the screw rod (68) rotates, it points to the scale (69), thereby indicating how many paper bags the conveyor belt (3) will transport. The other end of the screw rod (68) rotates on the side of the sliding sleeve (66) and pushes or pulls the sliding sleeve (66) to slide on the surface of the double slide rail (62). The sliding sleeve (66) slides When the step cone tube (63) moves, the limit rod (65) is driven to move on the surface of the rotating rod (61), and the limit rod (65) and the universal baffle (64) drive the stepped cone tube (63) to move at the same time. When the stepped cone tube (63) moves, the transmission belt (74) moves on the surface of the stepped cone tube (63), and the rotation axis of the transmission belt (74) is changed according to the position of the stepped cone tube (63), thereby adjusting the rotation speed of the transmission belt (74) to prepare for group stacking; S4, when the electric roller (2) rotates, it drives the rotating rod 1 (61) on the other side to rotate. When the rotating rod 1 (61) rotates, it drives the stepped conical tube (63) on the surface to rotate. The stepped conical tube (63) drives the transmission belt 2 (74) to transmit to the rotating roller (71) according to the pre-adjusted position. The rotating roller (71) also rotates according to the speed of the transmission belt 2 (74), and drives the L-shaped rod (72) on the surface to rotate. When the L-shaped rod (72) rotates, it drives the intermittent wheel (73) to rotate. When the intermittent wheel (73) rotates, it drives the cross tray (5) to rotate. At this time, one side of the cross tray (5) has already stacked a group of paper bags. Then, when the cross tray (5) rotates, it can continue to stack the next group of paper bags. S5. When the cross tray (5) rotates, the pressing plate (83) is driven to rotate simultaneously, and the other end of the pressing plate (83) rotates inside the annular slide groove (81) through the connecting rod (82). When the pressing plate (83) close to the paper bag rotates, the fixed plate (84) at the lower end of the connecting rod (82) blocks the sliding plate (86), thereby preventing the pressing plate (83) from rotating. The pressing plate (83) rotates inside the cross tray (5). When the cross tray (5) rotates, the paper bag is One side of the bag will fit with the pressing plate (83), thereby pressing the paper bag. Then, when the cross tray (5) rotates again, the connecting rod (82) will make a circular motion, driving the fixed plate (84) to slide over the upper end of the sliding plate (86), and then contact the inclined plate (88). The pressing plate (83) is tilted through the connecting rod (82), so that the paper bags can be stacked in groups in a cycle. At this time, all the paper bags will be placed on the stacking robot arm (9) and finally stacked by the stacking robot arm (9).

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