A pointed bottom paper bag forming machine

Abstract

The present invention relates to a pointed bottom paper bag forming machine, comprising a feeding mechanism, a piercing mechanism, an edge glue coating mechanism, a forming mechanism, a breaking mechanism, a conveying mechanism, a bottom glue coating mechanism, a bottom folding mechanism and a material receiving mechanism which are arranged in sequence, and is characterized in that a forming adjustment mechanism is arranged between the forming mechanism and the piercing mechanism, the forming adjustment mechanism comprises a folding paper board mounting seat connected to the top of the folding paper board of the forming mechanism, the folding paper board mounting seat is mounted on the piercing mechanism through a relatively set fixed seat, a left-right adjustment driving source is arranged on one side of the fixed seat, a left-right adjustment mechanism which can adjust the relative position between the two fixed seats where the folding paper board mounting seat is located through the left-right adjustment driving source is arranged between the fixed seat and the folding paper board mounting seat, and the conveying mechanism is a suction conveying mechanism, and the suction conveying mechanism comprises a suction conveying belt with suction holes evenly distributed on the surface and a suction box.

Description

Technical Field

[0001] The invention relates to the field of paper bag forming machines, in particular to a pointed-bottom paper bag forming machine. Background Art

[0002] Common food packaging oil-proof paper bags on the market include square-bottom oil-proof paper bags and pointed-bottom oil-proof paper bags. Common pointed-bottom oil-proof paper bags include hand-grabbed pancake bags, pancake bags, tenderloin pancake bags, and sauce-flavored pancake bags, etc. Common square-bottom oil-proof paper bags include roast duck oil-proof paper bags and sugar-fried chestnut oil-proof paper bags. First of all, in terms of material, pointed-bottom oil-proof paper bags are made of coated paper. Manufacturers of oil-proof paper bags can directly make bags with raw materials without coating. This type of oil-proof paper bag has size restrictions when it is customized, and the side width cannot exceed 5 cm. The square bottom oil-proof paper bag is made of kraft paper or white paper through artificial lamination. The oil-proof paper bags made by this process have no size restrictions and can be made according to customer needs. Of course, in terms of cost, since the labor, working hours and material costs of the laminated square bottom paper bags are higher than those of the pointed bottom oil-proof paper bags, their cost is much higher than that of the pointed bottom oil-proof paper bags. Therefore, when there is no special requirement on size, the pointed bottom oil-proof paper bag is the first choice of customers. The common square bottom kraft paper bags on the market are ordinary kraft paper bags that do not need oil protection;

[0003] For example, the pointed bottom paper bag making machine disclosed in patent number: CN106113586A adopts a material discharge rack, a deviation correction component, a material discharge traction component, a pre-puncture component, an edge glue component, a paper tube forming component, a main traction component, an auxiliary traction component, a breaking traction component, a paper feeding component and a bag bottom forming component which are arranged in sequence according to the bag making order. The main traction component consists of a main traction roller and a main pressure roller, the main traction roller is driven by a power transmission mechanism, and the main pressure roller is movably arranged above the main traction roller. The breaking traction component consists of a breaking traction roller and a breaking pressure roller, the breaking traction roller is driven by a power transmission mechanism, and the breaking pressure roller is movably arranged above the breaking traction roller. The auxiliary traction component includes an auxiliary traction roller, an auxiliary pressure roller and The cam, the auxiliary traction roller is set to swing up and down, the auxiliary pressure roller is set above the auxiliary traction roller, the shaft end of the auxiliary traction roller is provided with a first gear, the shaft end of the auxiliary pressure roller is provided with a second gear, the first and second gears are always meshed during the bag making process, the second gear is driven by a power transmission mechanism, the cam is set below the auxiliary traction roller, the cam is driven by a power transmission mechanism, when the high point of the cam contacts the auxiliary traction roller, the auxiliary traction roller is pushed to swing toward the auxiliary pressure roller and the two are close to each other, the rotation speed of the breaking traction roller is equal to the rotation speed of the cam, the rotation speed of the main traction roller is less than the rotation speed of the breaking traction roller, and the rotation speed of the auxiliary traction roller is less than or equal to the rotation speed of the main traction roller;

[0004] However, this type of equipment has many shortcomings. For example, when the paper tube forming component forms the paper into a paper tube, if there is a deviation before the paper tube is formed, the machine needs to be stopped to adjust the paper and then restarted for testing until the formed paper tube has no deviation. The stopping and adjustment method greatly affects the production efficiency.

[0005] In addition, the paper feeding force of the paper feeding component is fixed. No matter how big the paper is, it only provides a fixed paper feeding force, and the paper is not fixed on the paper feeding component. After the deviation occurs, it is not conducive to the bag bottom forming and collection of the paper at the rear. It is necessary to improve this. Summary of the invention

[0006] The technical problem to be solved by the present invention is to address the deficiencies of the above-mentioned prior art.

[0007] A pointed-bottom paper bag forming machine is provided.

[0008] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: the origami paper is generally located in the middle of the forming mechanism and is used in conjunction with other components of the forming mechanism. For the specific forming mechanism, please refer to the folding and forming mechanism of a bag making machine disclosed in CN203713154U. The lateral relative position of the origami paper connected to the origami paper mounting seat on the working platform can be adjusted by setting the left and right adjustment mechanisms. The left and right relative positions of the origami paper can be adjusted in time when the equipment is working, thereby improving the symmetry of the two sides of the paper tube after forming. If the origami paper is not located in the middle of the working platform of the forming mechanism, but there is a deviation, otherwise the two sides of the forming mechanism will have different formed shapes after forming at the same time, resulting in asymmetry. The present invention sets a forming adjustment mechanism so that the two sides of the forming plate can be adjusted, thereby facilitating the adjustment of the distance without stopping the machine, thereby improving the quality and efficiency of paper bag production. The conveying mechanisms used in the pointed bottom paper bag forming machines in the prior art are all ordinary conveyor belt conveying structures. This structure cannot ensure that the paper is firmly attached to the conveyor for transportation, so there is a deviation when the bag bottom is formed in the subsequent process, resulting in a low yield rate. The present invention arranges evenly distributed suction holes on the surface of the conveyor belt, and suctions the suction holes of the conveyor belt through a suction source and a suction box. The driving source drives the rotating shaft to rotate and drives the suction conveyor belt to rotate at the same time. One side of the paper on the suction conveyor belt moves along the suction conveyor belt and is adsorbed on the suction conveyor belt, thereby ensuring that the paper is firmly attached to the conveyor belt and will not be displaced during transportation. The suction adjustment structure is provided to adjust the suction force of the cover, so that when making papers of different specifications, the suction force can be adjusted according to the size of the paper, thereby improving versatility. This structure stabilizes the deviation of the paper tube being transported to the next step of gluing mechanism after being broken during production. The suction adjustment structure is convenient for adjusting the suction force without stopping the production, so that the paper tube being transported to the next step of primer coating mechanism after being broken is more accurate and stable, thereby improving the quality and efficiency of paper bag production.

[0009] The above-mentioned pointed-bottom paper bag forming machine can be further configured as follows: the left and right adjustment mechanism includes a fixed plate and a movable plate that are relatively spaced apart between the fixed seats, adjustment gaps are provided between the two sides of the movable plate and the fixed seats, one end of the folding paper board mounting seat is fixedly connected to the movable plate, the fixed plate and the movable plate are connected by a sliding structure, and an end of the movable plate facing the fixed plate is provided with a relatively fixed block, a first adjusting screw is passed through the fixed blocks, both ends of the first adjusting screw can be rotatably set relative to the fixed block, and the left and right adjustment drive source is connected to the first adjusting screw and drives the first adjusting screw to rotate.

[0010] By adopting the above technical solution, one end of the folding paper board mounting base is fixedly connected to the movable plate. When the left and right adjustment driving sources drive the first adjusting screw to rotate, since both ends of the adjusting screw can be rotatably arranged along the fixed block, the fixed block is prompted to move along the first adjusting screw. At the same time, the movable plate is driven to move in the adjustment gap through the sliding structure, thereby adjusting the left and right relative positions. This structure is not only highly integrated but also stable and reliable.

[0011] The above-mentioned pointed-bottom paper bag forming machine can be further configured as follows: the sliding structure includes at least one group of sliders fixedly arranged on a fixed plate and spaced apart toward one end of a movable plate, the movable plate is provided with at least one linear guide rail for the sliders to slide, one end of the slider is fixedly connected to the fixed plate and the other end is slidably arranged along the linear guide rail.

[0012] By adopting the above technical solution, the sliding structure is set as a combination of a slider and a linear guide rail, so that the stability during sliding is improved, and the slider and the linear guide rail are easy to purchase and assemble.

[0013] The above-mentioned pointed-bottom paper bag forming machine can be further configured as follows: a height adjustment mechanism is provided between the fixing plate and the folding paper board mounting seat, which can adjust the relative distance between the folding paper board and the fixing seat.

[0014] By adopting the above technical solution, the relative distance between the origami paper board and the working platform of the forming mechanism can be adjusted by setting a height adjustment mechanism, thereby achieving the purpose of adjusting the height of the origami paper board. If the height of the origami paper board is not at an appropriate position, it cannot play a good supporting role in the paper forming process, and the paper may not be able to form a paper tube smoothly after forming. By setting the height adjustment mechanism, the height of the origami paper board is adjustable, so that the height of the origami paper board can be adjusted in time during the working process to improve the paper tube forming rate.

[0015] The above-mentioned pointed-bottom paper bag forming machine can be further configured as follows: the height adjustment mechanism includes an adjustment seat arranged on a fixed seat, a second adjustment screw is passed through the adjustment seat, one end of the second adjustment screw passes through the folding paper board mounting seat and can drive the folding paper board mounting seat to reciprocate up and down along the adjustment seat, and the other end of the second adjustment screw is installed with a height adjustment drive source.

[0016] By adopting the above technical solution, the height adjustment drive source drives the second adjustment screw to rotate along the adjustment seat while driving the folding paper board mounting seat connected to the other end of the second adjustment screw to reciprocate up and down. The height adjustment drive source can be set to a motor, a servo motor or an adjustment handwheel.

[0017] The above-mentioned pointed-bottom paper bag forming machine can be further configured as follows: the suction adjustment structure includes an adjustment groove opened at the other end of the suction box relatively connected to the suction pipe and connected to the outside, the suction box is provided with a shielding adjustment plate at the adjustment groove which can completely or partially shield the adjustment groove, and a sliding structure is arranged between the two sides of the shielding adjustment plate and the suction box, and the shielding adjustment plate is connected to the suction box through the sliding structure and can be slidably arranged.

[0018] By adopting the above technical scheme, a ventilation adjustment groove connected to the outside is opened at the other end of the air intake box which is relatively connected to the air intake pipe, and a shielding adjustment plate which can partially or completely block the adjustment groove is connected to the air intake box through a sliding structure. Changing the position of the shielding adjustment plate can adjust the area of ​​the adjustment groove connected to the outside. The larger the area of ​​the part connected to the outside, the more external air is inhaled by the air source when sucking air into the air intake box through the air intake pipe, and thus the suction force at the air intake conveyor belt is smaller. The larger the area of ​​the adjustment groove blocked by the shielding adjustment plate, the less external air is inhaled and the greater the suction force at the air intake conveyor belt. When the adjustment groove is completely blocked, the suction force at the air intake conveyor belt reaches a maximum value. This suction adjustment method is not only simple but also ingenious in structure. It replaces the function of the suction regulating valve, thereby greatly reducing the production cost.

[0019] The above-mentioned pointed bottom paper bag forming machine can be further configured as follows: the sliding structure includes mounting holes relatively set up on the suction box, the shielding adjustment plate is provided with an adjustment slot at a position corresponding to the mounting hole, and the mounting hole and the adjustment slot are connected by an adjustment screw.

[0020] By adopting the above technical solution, the shielding adjustment plate is installed on the air intake box through adjusting screws and adjusting long grooves corresponding to the mounting holes by opening relatively set mounting holes on the air intake box. When adjustment is needed, the adjusting screws are slightly loosened, and the position of the shielding adjustment plate is changed and then the adjusting screws are locked on the air intake box. Adjustment is convenient.

[0021] The above-mentioned pointed-bottom paper bag forming machine can be further configured as follows: a conveyor belt tensioning shaft is provided at the other end of the suction conveyor belt which is relatively wound around the suction box.

[0022] By adopting the above technical solution, the suction conveyor belt is tightened by arranging a conveyor belt tensioning shaft, so that the suction conveyor belt is more firmly attached between one end of the suction box and the suction box, thereby ensuring the suction effect.

[0023] The beneficial effects of the present invention are as follows: by setting a forming adjustment mechanism to adjust the folding paper board up and down and left and right, the accuracy of the forming mechanism docking and the deviation adjustment generated in the production of paper bags are solved, which facilitates the non-stop adjustment of the deviation of paper bags in production, and stabilizes the deviation of the paper tube after being broken during production and transported to the next step of gluing mechanism. The shielding adjustment plate is slidably arranged on the suction box to facilitate the non-stop adjustment of the suction force during production, so that the paper tube after being broken is transported to the next step of the primer coating mechanism more accurately and stably, thereby improving the quality and efficiency of paper bag production.

[0024] The present invention is further described in detail below with reference to the accompanying drawings and embodiments. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 It is a three-dimensional schematic diagram of an embodiment of the present invention.

[0026] Figure 2 It is an enlarged schematic diagram of the forming adjustment mechanism according to an embodiment of the present invention.

[0027] Figure 3 It is a schematic diagram of the exploded structure of the forming adjustment mechanism according to an embodiment of the present invention.

[0028] Figure 4 Schematic diagram of the movable plate structure of an embodiment of the present invention.

[0029] Figure 5 Schematic diagram of the three-dimensional structure of the fixing plate according to an embodiment of the present invention Figure 1 .

[0030] Figure 6 Schematic diagram of the three-dimensional structure of the fixing plate according to an embodiment of the present invention Figure 2 .

[0031] Figure 7 A three-dimensional schematic diagram of an air suction conveying mechanism according to an embodiment of the present invention Figure 1 .

[0032] Figure 8 A three-dimensional schematic diagram of an air suction conveying mechanism according to an embodiment of the present invention Figure 2 .

[0033] Fig. 9 It is a three-dimensional schematic diagram of an air suction box according to an embodiment of the present invention.

[0034] Fig.10 This is a schematic diagram of the installation of the suction box and the shielding adjustment plate according to an embodiment of the present invention.

[0035] Fig.11 Schematic diagram of the structure of the suction conveyor belt according to an embodiment of the present invention. DETAILED DESCRIPTION

[0036] See also Figure 1-Figure 11As shown: a pointed bottom paper bag forming machine, comprising a feeding mechanism 1, a piercing mechanism 2, an edge glue coating mechanism, a forming mechanism 4, a breaking mechanism 5, a conveying mechanism 6, a bottom glue coating mechanism 7, a bottom folding mechanism 8 and a receiving mechanism 9 which are arranged in sequence, a forming adjustment mechanism 10 is arranged between the forming mechanism 1 and the piercing mechanism 2, the forming adjustment mechanism 10 comprises a folding paper board mounting seat 101 connected to the top of the folding paper board 41 of the forming mechanism 4, the folding paper board mounting seat 101 is mounted on the piercing mechanism 2 through a fixed seat 102 which is arranged oppositely, a left and right adjustment hand wheel 103 is arranged on one side of the fixed seat 102, and a left and right adjustment mechanism which can adjust the relative position between the two fixed seats 102 where the folding paper board mounting seat 101 is located through the left and right adjustment hand wheels 103 is arranged between the fixed seat 102 and the folding paper board mounting seat 101;

[0037] The left-right adjustment mechanism includes a fixed plate 104 and a movable plate 105 which are relatively spaced apart between the fixed seat 102, and adjustment gaps 106 are arranged between the two sides of the movable plate 105 and the fixed seat 102, one end of the folding paper board mounting seat 101 is fixedly connected to the movable plate 105, and the fixed plate 104 and the movable plate 105 are connected by a sliding structure, and a fixed block 107 is arranged relatively arranged at one end of the movable plate 105 facing the fixed plate 104, and a first adjustment screw 108 is passed through between the fixed blocks 107, and both ends of the first adjustment screw 108 can be rotatably arranged relative to the fixed block 107, and a locking bolt 109 is arranged on one of the fixed blocks 107, and a locking handle 110 for driving the locking bolt 109 to rotate is arranged on the locking bolt 109, and the left-right adjustment hand wheel 103 is connected to the first adjustment screw 108 and drives the first adjustment screw 108 to rotate;

[0038] The sliding structure includes two groups of sliders 111 fixedly arranged on the fixed plate 104 and spaced apart from each other at one end of the movable plate 105. The movable plate 105 is provided with two linear guide rails 112 for the sliders 111 to slide. One end of each group of sliders 111 is fixedly connected to the fixed plate 104, and the other end is installed on the linear guide rail 112 and slides along the linear guide rail 112.

[0039] A height adjustment mechanism capable of adjusting the relative distance between the folding paper board 41 and the fixing seat 102 is provided between the fixing plate 104 and the folding paper board mounting seat 101. The height adjustment mechanism comprises an adjustment seat 113 provided on the fixing seat 102. A second adjustment screw 114 is passed through the adjustment seat 113. One end of the second adjustment screw 114 passes through the folding paper board mounting seat 101 and can drive the folding paper board mounting seat 101 to reciprocate up and down along the adjustment seat 113. A height adjustment hand wheel 115 is installed at the other end of the second adjustment screw 114. A second locking screw 1131 is provided at one side of the adjustment seat 113. One end of the second locking screw 1131 passes through the adjustment seat 113 and abuts against the second adjusting screw 114. An operating handle 1132 is provided at the other end. The second locking screw 1131 is loosened by the operating handle 1132 during adjustment. After the adjustment is completed, the second locking screw 1131 is locked by the operating handle 1132.

[0040] The other end of the movable plate 105 connected to the folding paper board mounting seat 101 is provided with an angle fine-tuning mechanism which can push one end of the movable plate 105 close to the fixed plate 104 so as to change the angle of the folding paper board mounting seat 101 relative to the working platform 42 of the forming mechanism. The angle fine-tuning mechanism includes three adjusting screws 116 arranged at intervals at the end of the movable plate 105 away from the fixed plate 104 and passing through the movable plate 105 and threadedly connected with the fixed plate 104. The adjusting screws 116 are all fixedly connected with an adjusting handle 117. When adjustment is required, the adjusting handle 117 drives the adjusting screw 116 to push one end of the movable plate 105 toward the fixed plate 104, or the adjusting screw 116 is loosened in the reverse direction to move one end of the movable plate 105 away from the fixed plate 104.

[0041] The conveying mechanism is an air suction conveying mechanism 6, which includes an air suction conveying belt 61 and an air suction box 62. The air suction conveying belt 61 is provided with a plurality of groups of air suction holes 611 arranged at intervals and distributed evenly. The air suction box 62 is provided with a cavity inside. The air suction box 62 is provided with air suction long grooves 621 arranged at intervals at the corresponding positions of each group of air suction holes 611. The air suction long grooves 621 are connected to the cavity. Rotating shafts 63 for driving the transmission of the air suction conveying belt are provided at both ends of the air suction conveying belt 61, and one of the rotating shafts 63 is linked to a driving source in the device (not shown in the figure). The air suction conveying belt 6 1 is wound around the surface of the suction box 62, and a conveyor belt tensioning shaft 64 is provided at the other end of the suction conveyor belt 61 which is relatively wound around the suction box 62. One end of the suction box 62 is connected with the suction hole 611 of the suction conveyor belt 61 through the suction long groove 621. A suction pipe installation position 622 is provided on one side of the suction box 62. The suction pipe 65 is connected with the suction box 62 through the suction pipe installation position 622 and is connected with a suction blower 66 which can exhaust air inside the suction box 62 at the other end. A suction regulating structure which can adjust the suction force entering the suction box 62 is provided at the connection between the suction box 62 and the suction pipe 65.

[0042] The suction force adjustment structure includes an adjustment slot 66 opened at the other end of the suction box 62 and connected to the outside and connected to the suction pipe 65. The suction box 62 is provided with a shielding adjustment plate 67 at the adjustment slot 66, which can completely or partially shield the adjustment slot 66. Sliding structures are provided between the shielding adjustment plate 67 and the suction box 62 on both sides. The shielding adjustment plate 67 is connected to the suction box 62 through the sliding structure and can be slidably arranged.

[0043] The sliding structure includes mounting holes 623 arranged opposite to each other on the suction box 62, and the shielding adjustment plate 67 is provided with an adjustment slot 671 at a position corresponding to the mounting hole 623, and the mounting hole 623 and the adjustment slot 671 are connected by an adjustment screw (not shown in the figure);

[0044] Tensioning adjustment structures are provided at both ends of the tensioning shaft 64, and the tensioning adjustment structure includes tensioning adjustment seats 68 arranged relatively to each other. The tensioning adjustment seat 68 is provided with a tensioning shaft mounting groove 681 for inserting the conveyor belt tensioning shaft 64. A rotating roller 641 which can rotate along the axial direction of the conveyor belt tensioning shaft 64 is installed on the conveyor belt tensioning shaft 64 through a bearing. The suction conveyor belt 61 is in contact with the rotating roller 641. The tensioning adjustment seat 68 is provided with a mounting hole 682 for mounting the tensioning adjustment seat 68 on the equipment frame.

Claims

1. A pointed bottom paper bag forming machine, comprising a feeding mechanism, a piercing mechanism, an edge glue coating mechanism, a forming mechanism, a breaking mechanism, a conveying mechanism, a bottom glue coating mechanism, a bottom folding mechanism and a material receiving mechanism, which are arranged in sequence, and characterized in that: A forming adjustment mechanism is arranged between the forming mechanism and the piercing mechanism, the forming adjustment mechanism comprises an folding paperboard mounting seat connected to the top of the folding paperboard of the forming mechanism, the folding paperboard mounting seat is mounted on the piercing mechanism through a relatively set fixed seat, a left and right adjustment driving source is arranged on one side of the fixed seat, a left and right adjustment mechanism is arranged between the fixed seat and the folding paperboard mounting seat, which can adjust the relative position between the two fixed seats where the folding paperboard mounting seat is located through the left and right adjustment driving source, the conveying mechanism is an air suction conveying mechanism, the air suction conveying mechanism comprises an air suction conveying belt with air suction holes uniformly distributed on the surface and an air suction box, both ends of the air suction conveying belt are provided with rotating shafts that drive the transmission of the air suction conveying belt, one of the rotating shafts is connected with a driving source, the air suction conveying belt is wound around the surface of the air suction box, and one of the air suction box The end is connected with the suction conveyor belt through the suction hole, and one side of the suction box is connected to an suction source for exhausting air inside the suction box through a suction pipe, and an suction adjustment structure for adjusting the suction force entering the suction box is arranged at the connection between the suction box and the suction pipe. The left and right adjustment mechanism includes a fixed plate and a movable plate relatively spaced apart between the fixed seats, and adjustment gaps are arranged between the two sides of the movable plate and the fixed seats. One end of the folding paper board mounting seat is fixedly connected to the movable plate, and the fixed plate and the movable plate are connected by a sliding structure. A relatively fixed block is arranged at one end of the movable plate facing the fixed plate, and a first adjusting screw is passed between the fixed blocks. Both ends of the first adjusting screw can be rotatably arranged relative to the fixed block, and the left and right adjustment driving sources are connected to the first adjusting screw and drive the first adjusting screw to rotate.

2. The pointed bottom paper bag forming machine according to claim 1, characterized in that: The sliding structure includes at least one group of sliders fixedly arranged on a fixed plate and spaced apart toward one end of a movable plate. The movable plate is provided with at least one linear guide rail for the sliders to slide. One end of the slider is fixedly connected to the fixed plate and the other end is slidably arranged along the linear guide rail.

3. A pointed bottom paper bag forming machine according to claim 1 or 2, characterized in that: A height adjustment mechanism capable of adjusting the relative distance between the folding paper board and the fixing seat is arranged between the fixing plate and the folding paper board mounting seat.

4. The pointed bottom paper bag forming machine according to claim 3, characterized in that: The height adjustment mechanism includes an adjustment seat arranged on a fixed seat, a second adjustment screw is passed through the adjustment seat, one end of the second adjustment screw passes through the folding paper board mounting seat and can drive the folding paper board mounting seat to reciprocate up and down along the adjustment seat, and the other end of the second adjustment screw is installed with a height adjustment driving source.

5. The pointed bottom paper bag forming machine according to claim 1, characterized in that: The suction force adjustment structure includes an adjustment groove which is opened at the other end of the suction box and connected to the outside and is connected to the suction pipe. The suction box is provided with a shielding adjustment plate at the adjustment groove which can completely or partially shield the adjustment groove. A sliding structure is provided between the two sides of the shielding adjustment plate and the suction box. The shielding adjustment plate is connected to the suction box through the sliding structure and can be slidably arranged.

6. The pointed bottom paper bag forming machine according to claim 5, characterized in that: The sliding structure comprises mounting holes arranged opposite to each other on the air suction box, and the shielding adjustment plate is provided with an adjustment slot at a position corresponding to the mounting hole, and the mounting hole and the adjustment slot are connected by an adjustment screw.

7. A pointed bottom paper bag forming machine according to claim 1, 5 or 6, characterized in that: The other end of the air suction conveyor belt which is wound around the air suction box is provided with a conveyor belt tensioning shaft.

Images