Sheet feeding device of paper bag forming machine

Abstract

The utility model discloses a sheet stock feeding device of a paper bag forming machine, which comprises a rack, a sheet stock height adjusting mechanism and a sheet stock conveying mechanism, the rack is sequentially provided with a feeding station and a conveying station along the conveying direction, the sheet stock height adjusting mechanism is arranged on the rack and is positioned at the feeding station, and the sheet stock conveying mechanism is positioned at the conveying station. The top height of the stacked sheet materials can be adjusted in the vertical direction; the sheet material conveying mechanism is arranged on the conveying station and comprises a first conveying assembly and a second conveying assembly which are sequentially arranged in the conveying direction. A deviation rectifying assembly is further arranged on the downstream side of the second conveying assembly and comprises a driving component and an adjusting component which are arranged on the rack, and when the sheet stock is conveyed to the downstream end of the second conveying assembly, the driving component drives the adjusting component to push the sheet stock to move horizontally in the width direction of the rack so as to be aligned with a feeding port of the next station. Through the arrangement mode, the accuracy of the sizes of the produced paper bags can be guaranteed, and the defective rate of the produced paper bags is reduced.

Description

Technical Field

[0001] This utility model relates to the field of automated paper bag forming equipment, and specifically to a sheet material supply device for a paper bag forming machine. Background Technology

[0002] Paper bags are a widely used form of packaging, defined as any bag containing paper material. Paper bags come in a wide variety of types, differing not only in materials but also in design and style.

[0003] Based on material, common paper bags include white cardboard bags, white corrugated paper bags, coated paper bags, and kraft paper bags, as well as some unique paper bags made from specialty papers. These paper bags each have their own characteristics in terms of durability and texture. Structurally, the edges, bottom, and sealing methods of paper bags vary. For example, there are open-top sewn-bottom bags, open-top glued corner-bottom bags, valve-type sewn bags, and valve-type flat hexagonal end-bottom glued bags, etc., which meet the needs of different occasions. According to their function, paper bags cover a wide range, such as file folders, envelopes, tote bags, and even specialized uses such as cement bags, feed bags, waxed paper bags, and fertilizer bags. Their specifications and thickness are customized according to specific uses to achieve economic practicality while also considering environmental protection and corporate cost control.

[0004] In existing technologies, paper bag production typically utilizes paper bag forming machines. The raw materials for paper bags are mostly stacked or bundled sheets of material. During production, the sheets are individually placed onto the processing platform of the paper bag forming machine by hand or a robotic arm for processing, such as threading drawstrings and folding edges. However, when stacked sheets are placed onto the processing platform by robotic arms or manual operation, the sheets may not reach the precise position on the platform, potentially leading to positional deviations. This results in dimensional inaccuracies in the produced paper bags, increasing the defect rate. Furthermore, manually placing stacked sheets onto the processing platform significantly increases labor costs in the paper bag production process.

[0005] Therefore, existing technologies have the problem that when stacked sheets are placed one by one onto the processing platform of a paper bag forming machine by means of robotic arms or manual operation, the sheets cannot accurately reach the accurate position on the processing platform, which may result in positional deviations. This leads to deviations in the size of the produced paper bags, and consequently, an increase in the defect rate. Utility Model Content

[0006] The purpose of this invention is to solve the problem in the prior art where, when stacked sheets are placed one by one onto the processing platform of a paper bag forming machine by means of a robotic arm or manual operation, the sheets cannot accurately reach the precise position on the processing platform, which may result in positional deviations. This leads to deviations in the size of the produced paper bags, and consequently, an increase in the defect rate.

[0007] To solve the above problems, this utility model provides a sheet material supply device for a paper bag forming machine, comprising: a frame, wherein a feeding station and a conveying station are sequentially arranged along the conveying direction; a sheet material height adjustment mechanism, wherein the sheet material height adjustment mechanism is arranged on the frame and located at the feeding station, and the sheet material is stacked on the sheet material height adjustment mechanism and the top height of the sheet material can be adjusted in the vertical direction; and a sheet material conveying mechanism, wherein the sheet material conveying mechanism is arranged at the conveying station and includes a first conveying component and a second conveying component sequentially arranged along the conveying direction.

[0008] Furthermore, the first conveying assembly includes an extraction component that extracts the topmost sheet from the stacked sheets and conveys it along the conveying direction to the inlet end of the second conveying assembly; the second conveying assembly includes a conveying component that can move along the conveying direction, and the sheet conveyed to the inlet end of the second conveying assembly is at least partially attached to the conveying component and conveyed via the conveying component to the outlet end of the second conveying assembly.

[0009] Furthermore, a correction component is also provided on the frame downstream of the second conveying component. The correction component includes a drive component and an adjustment component mounted on the frame. The adjustment component is tractively connected to the power output end of the drive component and can move along the width direction of the frame. When the sheet material is conveyed to the downstream end of the second conveying component, the drive component drives the adjustment component to push the sheet material to move horizontally along the width direction of the frame to align with the inlet of the next station.

[0010] Using the above technical solution, when producing paper bags using a paper bag forming machine, the operator first stacks the sheet materials on the sheet material height adjustment mechanism. Then, the sheet material height adjustment mechanism moves the sheet materials vertically, changing their height position so that the topmost sheet material is within the extraction range of the extraction component. The extraction component then lifts the stacked sheet materials and conveys them one by one to the conveying component of the second conveying assembly. The conveying component continuously conveys the sheet materials along the conveying direction, ensuring stable delivery to the downstream end of the second conveying assembly. When the sheet material reaches the downstream end of the second conveying assembly, if it is misaligned with the inlet of the next station, the drive component can drive the adjustment component to move the sheet material horizontally along the width of the frame to align it with the inlet of the next station, thus ensuring accurate entry of the sheet material into the next station. Therefore, this setup allows the sheet material to accurately reach the next workstation, such as the threading station or the folding station, so that the sheet material can be accurately processed at the next workstation with no dimensional deviation, ensuring the accuracy of the produced paper bag size and reducing the defect rate of the produced paper bags.

[0011] In addition, by setting up this sheet material supply device, there is no need to manually place and transport sheets one by one, thus reducing labor costs.

[0012] According to the embodiments of the present invention, the sheet material supply device for a paper bag forming machine includes a sheet material height adjustment mechanism comprising a placement platform, a power component and a lifting component mounted on the frame, wherein the power component is connected to the lifting component, the placement platform is disposed on the lifting component, and the sheet material is stacked on the placement platform; wherein the power component drives the lifting component and moves the placement platform back and forth in the vertical direction.

[0013] By adopting the above technical solution, a placement platform is set up to facilitate the stacking of sheet materials on the platform. Furthermore, after the staff places the sheet materials on the platform, the lifting mechanism is driven by a power component to move the placement platform vertically, ensuring that the top sheet material among the stacked sheet materials is within the extraction range of the extraction component, thus guaranteeing the reliability of sheet material conveying.

[0014] According to the embodiments of the present invention, the sheet material supply device for a paper bag forming machine includes a lifting component comprising a first zipper mechanism and a second zipper mechanism respectively connected to both ends of the placement platform in the width direction, and a power component comprising a first drive motor and a second drive motor mounted on the frame; wherein, the first zipper mechanism includes a first zipper and a first sprocket, the second zipper mechanism includes a second zipper and a second sprocket, the first drive motor is drivenly connected to one end of the first zipper through the first sprocket, and the other end of the first zipper is fixedly connected to one end of the placement platform; the second drive motor is drivenly connected to one end of the second zipper through the second sprocket, and the other end of the second zipper is fixedly connected to the other end of the placement platform.

[0015] By adopting the above technical solution, and by placing the first and second zipper mechanisms of the lifting component at both ends of the placement platform, the vertical space occupied by the lifting component on the placement platform can be reduced, thereby allowing more sheet materials to be stacked on the placement platform. Furthermore, by using a first drive motor to drive the first zipper mechanism and a second drive motor to drive the second zipper mechanism to change the height of the placement platform, the platform also has the advantage of high precision when changing its vertical position. This ensures that the topmost sheet material among the stacked sheet materials on the placement platform can be moved promptly and accurately into the extraction range of the extraction component.

[0016] According to the embodiments of the present invention, the sheet material supply device for a paper bag forming machine includes a sheet material height adjustment mechanism that further includes an air blowing component. The air blowing component is mounted on the frame and the air blowing port of the air blowing component faces the opening of the placement table along the width direction of the frame. In the vertical direction, the air blowing port of the air blowing component is aligned with the uppermost sheet material among the sheets placed on the placement table.

[0017] By aligning the air inlet of the air blowing component with the topmost sheet among the stacked sheets placed on the placement platform, during the sheet conveying process, when the air blowing component operates, the topmost sheet overcomes the downward gravity because the air force blown by the air blowing component tends to lift it. This reduces the adhesion between the topmost sheet and its adjacent sheet, making it easier for the extraction component to extract and convey the topmost sheet, thus reducing the risk of the extraction component dragging the adjacent sheet while conveying the topmost sheet.

[0018] According to an embodiment of the present invention, a sheet material supply device for a paper bag forming machine includes an extraction component comprising a first suction cup component and a second suction cup component, wherein the first suction cup component and the second suction cup component are sequentially arranged on the frame along the conveying direction; wherein the suction portion of the first suction cup component is aligned vertically with the upstream end of the sheet material stacked on the placement table in the conveying direction, and the suction portion of the second suction cup component is aligned vertically with the middle position of the sheet material adsorbed by the first suction cup component in the conveying direction, and moves the downstream side portion of the sheet material to the conveying component along the conveying direction.

[0019] By adopting the above technical solution, when conveying sheet material, the suction part of the first extraction component first vertically lifts the upstream end of the sheet material in the conveying direction; then the suction part of the second suction cup component holds the sheet material lifted by the first suction cup component at the middle position in the conveying direction and moves the downstream part of the sheet material to the conveying part in the conveying direction. At the same time, the suction part of the first extraction component also lifts other sheet materials placed on the placement table. This process is repeated. Through the cooperation of the first extraction component and the second extraction component, the continuity of sheet material conveying is ensured, resulting in a higher sheet material conveying rate. Therefore, the paper bag production speed of the paper bag forming machine is improved.

[0020] According to the embodiment of the present invention, the sheet material supply device for a paper bag forming machine includes a first conveying component further comprising a limiting component and a sensing component mounted on the frame; wherein, along the conveying direction, the limiting component is located downstream of the extraction component and close to the inlet end of the conveying component, and presses and limits the end of the sheet material entering the inlet end of the conveying component; furthermore, the limiting component includes a limiting rod and a plurality of limiting wheels, the limiting rod extends along the width direction of the frame and is fixed at both ends to the frame, the plurality of limiting wheels are spaced apart on the limiting rod along the width direction of the frame and are rotatably mounted on the limiting rod, and in the vertical direction, the bottom ends of the plurality of limiting wheels are aligned with the top end of the conveying component.

[0021] Furthermore, in the vertical direction, the sensing component is mounted on the frame and located above the sheet height adjustment mechanism. The sensing component detects the top height position of the sheet placed on the placement table.

[0022] Using the above technical solution, when the extraction component conveys the sheet material to the conveying component, the sheet material may be blown up due to the air blowing component. The limiting component prevents this, ensuring the sheet material enters the conveying component smoothly. By setting a sensing component to detect the top height of the sheet material placed on the placement table, the top height of the stacked sheet material can be adjusted in real time, ensuring that the topmost sheet material is within the extraction range of the extraction component.

[0023] According to the embodiments of the present invention, the sheet material supply device for a paper bag forming machine includes a second conveying component that is located above the conveying component in the vertical direction and mounted on the frame. The conveying component includes a conveyor belt extending from the inlet end to the outlet end of the second conveying component. In the vertical direction, the guide component is located above the conveyor belt. The extraction component conveys the sheet material to the inlet end of the conveying component and at least partially adheres to the conveyor belt. When the sheet material is conveyed by the conveyor belt, the guide component presses the sheet material.

[0024] Furthermore, the guide component includes a roller frame and multiple rollers. The roller frame includes multiple spaced roller rods, both ends of which are fixed to the frame. Multiple rollers are spaced apart on each roller rod, and each roller is rotatably mounted on its corresponding roller rod.

[0025] By adopting the above technical solution, when the sheet material is conveyed to the inlet end of the conveying component and at least partially adheres to the conveyor belt, the guiding component presses the sheet material onto the conveying plane of the conveyor belt while the sheet material is being conveyed by the conveyor belt, thereby avoiding the problem of the sheet material slipping relative to the conveying plane and thus achieving the function of limiting and guiding the sheet material.

[0026] Furthermore, the guide component is configured as a combination of multiple roller rods and multiple rollers. During the conveyor belt conveying the sheet material, the rollers can rotate while guiding and limiting the sheet material, reducing the resistance to the sheet material. In addition, by setting multiple rollers, the sheet material can also be flattened, ensuring that it is processed in a stretched state.

[0027] According to an embodiment of the present invention, a sheet material supply device for a paper bag forming machine includes a driving component comprising a first driving component and a second driving component spaced apart on the frame along the width direction of the frame, and an adjusting component comprising a first adjusting component spaced apart on the frame along the width direction of the frame and drivenly connected to the first driving component, and a second adjusting component drivenly connected to the second driving component.

[0028] Furthermore, when the sheet material is conveyed to its downstream end by the second conveying assembly, the first driving component and the second driving component respectively drive the first adjusting component and the second adjusting component to move along the width direction of the frame, so as to push the sheet material to translate along the width direction of the frame.

[0029] Using the above technical solution, when the sheet material is conveyed to its downstream end by the second conveying component, if the sheet material is not aligned with the inlet of the next station, the first driving component and the second driving component can respectively drive the first adjusting component and the second adjusting component to move along the width direction of the frame, thereby pushing the sheet material to move horizontally along the width direction of the frame, so that the sheet material is aligned with the inlet of the next station, thus ensuring that the sheet material can accurately enter the next station.

[0030] According to the embodiments of the present invention, the sheet material supply device for a paper bag forming machine includes a first driving component comprising a first power motor mounted on the frame and a first cam rotatably connected to the frame and drivingly connected to the first power motor; and a second driving component comprising a second power motor mounted on the frame and a second cam rotatably connected to the frame and drivingly connected to the second power motor.

[0031] Furthermore, the first adjusting component is configured as a first pushing block, and the second adjusting component is configured as a second pushing block. In the vertical direction, both the first pushing block and the second pushing block are located above the downstream end of the second conveying assembly, and the bottom wall surfaces of the first pushing block and the second pushing block abut against the upper surface of the downstream end of the second conveying assembly. The first power motor drives the first cam to rotate, thereby causing the first pushing block to translate along the width direction of the frame. The second power motor drives the second cam to rotate, thereby causing the second pushing block to translate along the width direction of the frame.

[0032] Using the above technical solution, when the sheet material is conveyed to its downstream end by the second conveying component, if the sheet material is not aligned with the inlet of the next station, the sheet material can be moved to change its position by driving the first cam to rotate with the first power motor and moving the first push block along the width direction of the frame, or by driving the second cam to rotate with the second power motor and moving the second push block along the width direction of the frame, so that it is accurately aligned with the inlet of the next station.

[0033] According to the embodiment of the present invention, the sheet material supply device for a paper bag forming machine includes a correction component, which further includes a position detection component, a correction sensor, a guide, and a power component. The guide is located downstream of the second conveying component and extends along the width of the frame, with both ends fixedly connected to the frame. The power component is fixedly installed on the frame, and the correction sensor is slidably disposed on the guide. The drive end of the power component is connected to the correction sensor. In the vertical direction, both the guide and the correction sensor are located above the downstream surface of the second conveying component.

[0034] Furthermore, the power unit can drive the correction sensor to slide on the guide, changing the position of the correction sensor in the width direction of the frame to align with the initial positioning point of the sheet.

[0035] Using the above technical solution, a correction sensor can detect whether the sheet material is located at the initial positioning point. If the correction sensor is offset from the initial positioning point of the sheet material, the position of the sheet material can be adjusted by the correction component to align it with the feed inlet of the next station. Furthermore, by setting a power component to drive the correction sensor to slide on the guide, changing the position of the correction sensor in the width direction of the frame, the correction sensor can be aligned with the initial positioning point on the sheet material when adapting to sheet materials of different widths.

[0036] The beneficial effects of this utility model are as follows:

[0037] This utility model discloses a sheet material supply device for a paper bag forming machine, comprising: a frame, wherein a feeding station and a conveying station are sequentially arranged along the conveying direction; a sheet material height adjustment mechanism, wherein the sheet material height adjustment mechanism is arranged on the frame and located at the feeding station, and the sheet material is stacked on the sheet material height adjustment mechanism and the top height of the sheet material can be adjusted in the vertical direction; and a sheet material conveying mechanism, wherein the sheet material conveying mechanism is arranged at the conveying station and includes a first conveying component and a second conveying component sequentially arranged along the conveying direction.

[0038] Furthermore, the first conveying assembly includes an extraction component that extracts the topmost sheet from the stacked sheets and conveys it along the conveying direction to the inlet end of the second conveying assembly; the second conveying assembly includes a conveying component that can move along the conveying direction, and the sheet conveyed to the inlet end of the second conveying assembly is at least partially attached to the conveying component and conveyed via the conveying component to the outlet end of the second conveying assembly.

[0039] Furthermore, a correction component is also provided on the frame downstream of the second conveying component. The correction component includes a drive component and an adjustment component mounted on the frame. The adjustment component is tractively connected to the power output end of the drive component and can move along the width direction of the frame. When the sheet material is conveyed to the downstream end of the second conveying component, the drive component drives the adjustment component to push the sheet material to move horizontally along the width direction of the frame to align with the inlet of the next station.

[0040] Furthermore, during the production of paper bags using a paper bag forming machine, the operator first stacks the sheet materials on the sheet material height adjustment mechanism. Then, the sheet material height adjustment mechanism moves the sheets vertically, changing their height position so that the top sheet material is within the extraction range of the extraction component. The extraction component then lifts the stacked sheets and conveys them one by one to the conveying component of the second conveying assembly. The conveying component continuously conveys the sheets along the conveying direction, ensuring stable delivery to the downstream end of the second conveying assembly. When the sheet material reaches the downstream end of the second conveying assembly, if it is misaligned with the inlet of the next station, the drive component can drive the adjustment component to move the sheet material horizontally along the width of the frame to align it with the inlet of the next station, ensuring accurate entry of the sheet material into the next station. Therefore, this setup allows the sheet material to accurately reach the next workstation, such as the threading station or the folding station, so that the sheet material can be accurately processed at the next workstation without dimensional deviation, ensuring the accuracy of the produced paper bag size and reducing the defect rate of the produced paper bags. Attached Figure Description

[0041] Figure 1 A schematic diagram of the overall structure of the sheet material supply device for a paper bag forming machine from a first-view perspective is provided for an embodiment of this utility model.

[0042] Figure 2 A schematic diagram of the overall structure of the sheet material supply device for a paper bag forming machine from a second perspective, provided for an embodiment of this utility model;

[0043] Figure 3 A schematic diagram of the overall structure of the sheet material supply device for a paper bag forming machine from a third-view perspective, for the purpose of providing an embodiment of this utility model;

[0044] Figure 4 A schematic diagram of the overall structure of the extraction component of the sheet material supply device for a paper bag forming machine is provided for embodiments of this utility model.

[0045] Figure 5 A schematic diagram of the overall structure of the guide component of the sheet material supply device for a paper bag forming machine provided in this embodiment of the utility model.

[0046] Explanation of reference numerals in the attached figures:

[0047] 1. Rack;

[0048] 10. Protective frame;

[0049] 2. Sheet height adjustment mechanism;

[0050] 20. Placement platform;

[0051] 21. Power component; 22. Lifting component; 210. First drive motor; 211. Second drive motor; 220. First zipper mechanism; 221. Second zipper mechanism; 2201. First zipper; 2202. First sprocket; 2210. Second zipper; 2211. Second sprocket;

[0052] 3. Sheet material conveying mechanism;

[0053] 30. First conveying assembly;

[0054] 301. Extraction component; 302. Limiting component; 303. Sensing component; 304. Position adjustment component; 3010. First suction cup component; 3011. Second suction cup component; 3041. Guide component; 3042. Sliding component;

[0055] 31. Second conveying assembly;

[0056] 310. Conveying component; 311. Guiding component; 3110. Roller frame; 3110a. Roller rod; 3110b. Roller;

[0057] 4. Correction components;

[0058] 40. Driving component; 41. Adjusting component; 42. Guide and limiting component; 43. Feeding platform; 401. First driving component; 402. Second driving component; 410. First adjusting component; 411. Second adjusting component;

[0059] 5. Loading station; 6. Conveying station; L, Conveying direction. Detailed Implementation

[0060] Paper bags are typically made of paper materials, such as kraft paper, white cardboard, and corrugated paper. These paper materials have good water and oil resistance, abrasion resistance, and folding resistance, effectively protecting the quality and appearance of items.

[0061] In existing technologies, paper bag forming machines are commonly used to produce paper bags. These machines are mechanical devices used to produce various types of paper bags, characterized by high efficiency, automation, and multi-functionality. A paper bag forming machine can complete the production of a paper bag in one operation, involving a single sheet of paper or laminated paper through gluing, creasing, and bottom pasting processes.

[0062] In existing technologies, when producing paper bags using a paper bag forming machine, sheets of material are placed one by one onto the processing platform of the machine manually or by a robotic arm for processing, such as threading drawstrings and folding edges. However, when stacked sheets of material are placed one by one onto the processing platform of the paper bag forming machine by robotic arm or manual operation, there is a possibility that the sheets may not reach the exact position on the processing platform, resulting in positional deviations. This can lead to dimensional deviations in the produced paper bags, thereby increasing the defect rate.

[0063] Therefore, reducing the deviation when placing stacked sheets of material one by one onto the processing platform of a paper bag forming machine, thereby reducing the defect rate of the produced products, has become an urgent problem to be solved.

[0064] To solve the above-mentioned technical problems, this utility model provides a sheet material supply device for a paper bag forming machine. When producing paper bags using the paper bag forming machine, the operator first stacks the sheets of material on a sheet material height adjustment mechanism. Then, the sheet material height adjustment mechanism moves the sheets vertically, changing the height position of the stacked sheets so that the top sheet is within the extraction range of the extraction component. The extraction component then lifts the stacked sheets and conveys them one by one to the conveying component of the second conveying assembly. The conveying component continuously conveys the sheets along the conveying direction, ensuring that the sheets are stably conveyed to the downstream end of the second conveying assembly. When the sheets are conveyed to the downstream end of the second conveying assembly, if the sheets are misaligned with the inlet of the next station, the drive component can drive the adjustment component to push the sheets horizontally along the width of the frame to align with the inlet of the next station, thus ensuring that the sheets accurately enter the next station. Therefore, this working method ensures the accuracy of the dimensions of the produced paper bags and reduces the defect rate of the produced paper bags.

[0065] To make the objectives, technical solutions, and advantages of this utility model clearer, the embodiments of this utility model will be described in further detail below with reference to the accompanying drawings.

[0066] First, we will give an overall description of the sheet material feeding device of the paper bag forming machine.

[0067] like Figures 1-3As shown in the figure, this utility model discloses a sheet material supply device for a paper bag forming machine, including: a frame 1, a sheet material height adjustment mechanism 2, and a sheet material conveying mechanism 3. The frame 1 is provided with a loading station 5 and a conveying station 6 in sequence along the conveying direction L; the sheet material height adjustment mechanism 2 is provided on the frame 1 and located at the loading station 5, the sheet materials are stacked on the sheet material height adjustment mechanism 2, and the sheet material height adjustment mechanism 2 can adjust the top height of the sheet materials in the vertical direction; the sheet material conveying mechanism 3 is provided on the frame 1 and located at the conveying station 6, and the sheet material height adjustment mechanism 2 includes a first conveying component 30 and a second conveying component 31 in sequence along the conveying direction L.

[0068] Specifically, the first conveying assembly 30 includes an extraction component 301, and the second conveying assembly 31 includes a conveying component 310 movable along the conveying direction L. When conveying sheet materials, the extraction component 301 extracts the topmost sheet material from the stacked sheet materials and conveys it along the conveying direction L to the inlet end of the second conveying assembly 31, ensuring that the topmost sheet material is within the extraction range of the extraction component 301. Then, the sheet material conveyed to the inlet end of the second conveying assembly 31 is at least partially attached to the conveying component 310 and conveyed via the conveying component 310 to the outlet end of the second conveying assembly 31, thereby ensuring that the sheet material can be stably conveyed to the downstream end of the second conveying component 310. It should be understood that the sheet material being at least partially attached to the conveying component 310 can be 1 / 5, 1 / 3, 1 / 2, etc., of the overall size of the sheet material along the sheet material conveying direction L.

[0069] More specifically, along the conveying direction L, a correction component 4 is also provided downstream of the second conveying component 31. The correction component 4 is mounted on the frame 1 and includes a drive component 40 and an adjustment component 41 mounted on the frame 1. The adjustment component 41 is tractively connected to the power output end of the drive component 40 and can move along the width direction of the frame 1. When the sheet material is conveyed to the downstream end of the second conveying component 31, if the sheet material is misaligned with the inlet of the next station, the drive component 40 can drive the adjustment component 41 to push the sheet material to move horizontally along the width direction of the frame 1 to align with the inlet of the next station. This ensures that the sheet material can accurately enter the next station, such as the rope threading station or the edge folding station, so that the sheet material can be accurately processed in the next station with no dimensional deviation, ensuring the accuracy of the size of the produced paper bags and reducing the defect rate of the produced paper bags.

[0070] More specifically, along the conveying direction L, a protective frame 10 is also provided at the upstream end of the extraction component 301. The protective frame 10 is fixedly installed on the frame 1 to protect the sheet height adjustment mechanism 2 and the extraction component 301 from being accidentally touched by the operator during operation, thereby avoiding the impact on the sheet conveying process and ensuring the reliability of the sheet supply device of the paper bag forming machine.

[0071] In summary, the working principle of the sheet material feeding device of this paper bag forming machine is as follows:

[0072] When producing paper bags using a paper bag forming machine, the operator first stacks the sheet materials on the sheet material height adjustment mechanism 2. Then, the sheet material height adjustment mechanism 2 moves the sheet materials vertically, changing their height position so that the topmost sheet material is within the extraction range of the extraction component 301. The extraction component 301 then lifts the stacked sheet materials and conveys them one by one to the conveying component 310 of the second conveying assembly 31. The conveying component 310 then continuously conveys the sheet materials along the conveying direction L, ensuring that the sheet materials are stably conveyed to the downstream end of the second conveying component 310. When the sheet material is conveyed to the downstream end of the second conveying assembly 31, if the sheet material is misaligned with the inlet of the next station, the drive component 40 can drive the adjusting component 41 to push the sheet material horizontally along the width direction of the frame 1 to align with the inlet of the next station, thus ensuring that the sheet material accurately enters the next station. Therefore, this setup allows the sheet material to accurately reach the next workstation, such as the threading station or the folding station, so that the sheet material can be accurately processed at the next workstation with no dimensional deviation, ensuring the accuracy of the produced paper bag size and reducing the defect rate of the produced paper bags.

[0073] Furthermore, when using the sheet material supply device of this paper bag forming machine to transport sheet material to the paper bag machine, there is no need to manually place the sheet material one by one for transportation, thus reducing labor costs.

[0074] It is important to understand that when feeding sheet material to the paper bag machine through the sheet material supply device of this paper bag forming machine, the conveying speed of the extraction component 301 for the sheet material should be less than the conveying speed of the conveying component 310 to avoid the problem of mutual interference between the sheet materials during the conveying process, such as the problem of two adjacent sheet materials overlapping each other during the conveying process.

[0075] It should be noted that the conveying direction L is the direction in which the sheet material is transported along the sheet material height adjustment mechanism 2, the sheet material conveying mechanism 3, and the correction component 4.

[0076] like Figures 1-3 As shown below, the structure and configuration of the sheet height adjustment mechanism 2 will be further explained to make this solution clearer.

[0077] In the embodiment disclosed in this example, the sheet height adjustment mechanism 2 includes a placement platform 20, a power component 21 and a lifting component 22 mounted on the frame 1. The power component 21 is connected to the lifting component 22, and the placement platform 20 is disposed on the lifting component 22. Sheets are stacked on the placement platform 20. The power component 21 can drive the lifting component 22 to move vertically and move the placement platform 20 back and forth vertically.

[0078] Specifically, by setting up a placement platform 20, it is convenient for workers to stack the sheet materials on the placement platform 20. Furthermore, after the workers stack the sheet materials on the placement platform 20, the power component 21 drives the lifting mechanism and moves the placement platform 20 vertically, so that the topmost sheet material in the stacked sheet materials is within the extraction range of the extraction component 301, ensuring the reliability of sheet material transportation. For example, if the height of the stacked sheet materials is higher than the extraction range of the extraction component 301, the power component 21 can drive the lifting mechanism and move the placement platform 20 vertically downward; if the height of the stacked sheet materials is lower than the extraction range of the extraction component 301, the power component 21 can drive the lifting mechanism and move the placement platform 20 vertically upward.

[0079] More specifically, the structure and arrangement of the lifting component 22 and the driving component are not limited.

[0080] In one embodiment, the lifting component 22 includes a first zipper mechanism 220 and a second zipper mechanism 221 respectively connected to both ends of the placement platform 20 in the width direction. The power component 21 includes a first drive motor 210 and a second drive motor 211 mounted on the frame 1. The first zipper mechanism 220 includes a first zipper 2201 and a first sprocket 2202. The second zipper mechanism 221 includes a second zipper 2210 and a second sprocket 2211. The first drive motor 210 is drivenly connected to one end of the first zipper 2201 through the first sprocket 2202. The other end of the first zipper 2201 is fixedly connected to one end of the placement platform 20. The second drive motor 211 is drivenly connected to one end of the second zipper 2210 through the second sprocket 2211. The other end of the second zipper 2210 is fixedly connected to the other end of the placement platform 20.

[0081] It should be understood that the first zipper 2201 and the second zipper 2210 are different from the traditional zippers set on clothing. The first zipper 2201 and the second zipper 2210 should be a mechanical structure that lifts an object by combining with a sprocket. When lifting the object to move in the vertical direction, it has the advantage of high precision.

[0082] Specifically, by placing the first zipper mechanism 220 and the second zipper mechanism 221 of the lifting member 22 at both ends of the placement platform 20, the vertical space occupied by the lifting member 22 on the placement platform 20 can be reduced, thereby enabling more sheet materials to be stacked on the placement platform 20. Furthermore, by using the first drive motor to drive the first zipper mechanism 220 and the second drive motor to drive the second zipper mechanism 221 to change the height of the placement platform 20, the placement platform 20 also has the advantage of high precision when changing its vertical position, ensuring that the topmost sheet material among the stacked sheet materials on the placement platform 20 can be moved promptly and accurately into the extraction range of the extraction component 301.

[0083] In another embodiment, the lifting component 22 is configured as a cylinder, and the driving component is configured as an air pump. Vertically, the cylinder is positioned below the placement platform 20, with its driving end fixedly mounted on the opposite side of the placement platform 20 opposite to the plane where the sheet material is placed. The other end of the cylinder is mounted on the frame 1, and the air pump is connected to the cylinder body. When the vertical position of the placement platform 20 is changed, air is pumped into the cylinder body of the driving cylinder by the air pump, causing the driving end of the cylinder to drive the cylinder body to move vertically.

[0084] In another embodiment, the lifting component 22 is configured as a telescopic push rod, and the driving component is configured as a motor, which is mounted on the frame 1. Vertically, one end of the telescopic push rod is positioned below the placement platform 20, and the driving end is fixedly mounted on the opposite side of the placement platform 20 opposite to the plane where the sheet material is placed. The other end of the telescopic push rod is connected to the motor for transmission. When the placement platform 20 is moved vertically, the motor drives the telescopic push rod to extend and retract, thus moving the placement platform 20 vertically and changing its position.

[0085] In the embodiment disclosed in this example, the sheet height adjustment mechanism 2 further includes an air blowing component (not shown in the figure). The air blowing component is mounted on the frame 1, and the air blowing port of the air blowing component opens towards the placement platform 20 along the width direction of the frame 1. In the vertical direction, the air blowing port of the air blowing component is aligned with the uppermost sheet among the sheets placed on the placement platform 20. During the sheet conveying process, when the air blowing component is working, it can make the uppermost sheet of the stacked sheets placed on the placement platform 20 overcome the downward gravity, because the air force blown by the air blowing component 23 tends to blow up the uppermost sheet of the stacked sheets placed on the placement platform 20. This reduces the degree of adhesion between the uppermost sheet and its adjacent sheet, making it easier for the extraction component 301 to extract and convey the uppermost sheet, and reducing the risk that the extraction component 301 may pull the adjacent sheet when conveying the uppermost sheet.

[0086] It should be understood that the air blowing component can be an air blower, fan, etc. with an air blowing port, and those skilled in the art can design it according to their needs.

[0087] like Figures 1-5 As shown below, the structure and arrangement of the sheet material conveying mechanism 3 will be further explained to make this solution clearer.

[0088] In the embodiment disclosed in this example, the sheet conveying mechanism 3 includes a first conveying assembly 30 and a second conveying assembly 31 sequentially arranged on the frame 1 along the conveying direction L. The first conveying assembly 30 includes an extraction component 301, a limiting component 302, a sensing component 303, and a position adjusting component 304. The structure and arrangement of the extraction component 301, the limiting component 302, the sensing component 303, and the position adjusting component 304 in the first conveying assembly 30 will be further explained below.

[0089] In one embodiment disclosed in this example, the extraction component 301 includes a first suction cup component 3010 and a second suction cup component 3011, wherein the first suction cup component 3010 and the second suction cup component 3011 are sequentially arranged on the frame 1 along the conveying direction L; wherein the suction portion of the first suction cup component 3010 is aligned vertically with the upstream end of the sheet material stacked on the placement table 20 in the conveying direction L, and the suction portion of the second suction cup component 3011 is aligned vertically with the middle position of the sheet material adsorbed by the first suction cup component in the conveying direction L, and moves the downstream side portion of the sheet material to the conveying component 310 along the conveying direction L.

[0090] Specifically, during the conveying of sheet material, the suction part of the first extraction component first vertically lifts the upstream end of the sheet material in the conveying direction L; then the suction part of the second suction cup component 3011 holds the sheet material lifted by the first suction cup component at the middle position in the conveying direction L, and moves the downstream part of the sheet material to the conveying part in the conveying direction L. At the same time, the suction part of the first extraction component also lifts other sheet materials placed on the placement table 20. This process is repeated. Through the cooperation of the first extraction component and the second extraction component, the continuity of sheet material conveying is ensured, resulting in a higher sheet material conveying rate. Therefore, the paper bag production speed of the paper bag forming machine is improved.

[0091] More specifically, the structure and arrangement of the first suction cup component 3010 and the second suction cup component 3011 are not limited.

[0092] In one embodiment, the first suction cup component 3010 includes an electric push rod and a first high-pressure suction cup. The electric push rod is mounted on the frame with its drive end facing the placement table 20. The second suction cup component 3011 includes a linear motor, a slide block, a slide rail, and a second high-pressure suction cup. The first high-pressure suction cup is mounted on the frame 1 with its suction portion facing the placement table 20. The linear motor and the slide rail are both mounted on the frame 1. The slide block is slidably connected to the slide rail, and the drive end of the linear motor is drively connected to the slide block and can drive the slide block to slide along the slide rail in the conveying direction L. The second high-pressure suction cup is mounted on the slide block with its suction portion facing the placement table 20.

[0093] Specifically, during the sheet material conveying process, the drive end of the electric push rod drives the first high-pressure suction cup to move vertically downwards to pick up the top sheet material stacked on the placement table 20. Then, the electric push rod drives its suction cup part to move vertically upwards, thereby lifting the sheet material. Next, the second high-pressure suction cup picks up the sheet material picked up by the first high-pressure suction cup. Then, the linear motor drives the slide to slide along the conveying direction L, thus conveying the sheet material onto the conveying component 310. The linear motor then drives the slide to return to its original position to continue conveying the next sheet material. This sheet material conveying process is repeated during paper bag production, ensuring the continuity of sheet material conveying and resulting in a higher sheet material conveying rate, thereby increasing the paper bag production speed of the paper bag forming machine.

[0094] In another embodiment, the first suction cup component 3010 includes a drive cylinder, a connecting seat, a negative pressure pump, and multiple high-pressure suction cup ports; the second suction cup component 3011 includes a high-pressure suction cup, a swing arm, and a drive motor. The drive cylinder is mounted on the frame 1, with its drive end facing the placement platform 20 and connected to the connecting seat. Multiple high-pressure suction cup ports are spaced apart along the width of the frame 1 and connected to the connecting seat, all facing the placement platform 20. The negative pressure pump is mounted on the frame 1 and communicates with the multiple high-pressure suction cup ports. The drive motor is mounted on the frame 1, one end of the swing arm is rotatably connected to the frame 1, and the drive motor is connected to the swing arm, driving the swing arm to swing along the conveying direction L. The high-pressure suction cup is mounted on the other end of the swing arm.

[0095] Specifically, during the sheet material conveying process, the drive cylinder drives the connecting seat to move vertically downwards, and multiple high-pressure suction cups pick up the top sheet material stacked on the placement platform 20. Then, the drive cylinder drives the connecting seat to move vertically upwards again, thereby lifting the sheet material. Then, the drive motor drives the swing arm to swing toward the placement platform 20, and the high-pressure suction cups pick up the sheet material picked up by the multiple high-pressure suction cups. Then, the drive motor drives the swing arm to swing along the conveying direction L, and the sheet material is partially conveyed to the conveying component 310.

[0096] Specifically, multiple high-pressure suction nozzles are used to pick up the sheet material, making it easier to lift and avoiding the risk of the sheet material falling due to insufficient suction. It should be understood that the number of high-pressure suction nozzles can be 2, 4, 5, etc.

[0097] In one embodiment disclosed in this example, along the conveying direction L, the limiting member 302 is located downstream of the extraction member 301 and close to the inlet end of the conveying member 310, pressing and limiting the end of the sheet material entering the inlet end of the conveying member 310; and the limiting member 302 includes a limiting rod and a plurality of limiting wheels. The limiting rod extends along the width direction of the frame 1 and is fixed at both ends to the frame 1. The plurality of limiting wheels are spaced apart on the limiting rod along the width direction of the frame 1 and are rotatably disposed on the limiting rod. In the vertical direction, the bottom ends of the plurality of limiting wheels are aligned with the top end of the conveying member 310.

[0098] Specifically, when the extraction component 301 conveys the sheet material to the conveying component 310, the sheet material may be blown up due to the air blowing component. The limiting component 302 prevents the sheet material from being blown up, allowing it to smoothly enter the conveying component 310. It should be understood that the number of limiting wheels can be 2, 5, 7, etc.

[0099] In one embodiment disclosed in this example, in the vertical direction, the sensing component 303 is disposed on the frame 1 and located above the sheet height adjustment mechanism 2, and the sensing component 303 detects the top height position of the sheet placed on the placement table 20.

[0100] Specifically, by setting the sensing component 303, the top height position of the sheet material on the placement table 20 can be accurately detected. The top height of the sheet material is adjusted by the sensing component 303 based on the top height position of the sheet material, so that the topmost sheet material among the stacked sheet materials on the placement table 20 is within the extraction range of the extraction component 301.

[0101] More specifically, the sensing component 303 can be configured as a position sensor, distance sensor, etc.

[0102] It should be understood that the extraction range of the extraction component 301 can be the thickness of a single sheet of material, or the thickness of multiple sheets of material, such as 2 sheets, 5 sheets, 10 sheets, etc. In this embodiment, the thickness of multiple sheets of material is preferably used as the extraction range of the extraction component 301.

[0103] In one embodiment disclosed in this example, such as Figure 4As shown, the position adjustment component 304 includes a guide component 3041 and a sliding component 3042. Both ends of the guide component 3041 extend along the width direction of the frame 1, and both ends are slidably connected to the frame 1 through the sliding component 3042. The extraction component 301 is installed on the guide component 3041 and slidably connected to the guide component 3041.

[0104] Specifically, by setting the position adjustment component 304, when the size of the sheet material changes and the position of the extraction component 301 needs to be changed, the guide component 3041 can be pushed and the sliding component 3042 can be moved along the length direction of the frame, thereby changing the position of the extraction component 301 in the length direction of the frame 1; by pushing the extraction component 301 to slide on the guide component 3041, the position of the extraction component 301 in the width direction of the frame 1 can be changed; by adjusting the position of the extraction component 301 in this way, the extraction component 301 can adapt to sheet materials of different sizes when extracting sheet materials.

[0105] More specifically, the structure and arrangement of the guide member 3041 are not limited; for example, it can be a single guide rod, two guide rods, a guide shaft, and a connecting rod.

[0106] More specifically, the structure and arrangement of the sliding component 3042 are not limited; for example, it can be a sliding seat, a slider, a carriage, etc.

[0107] Furthermore, such as Figures 3-5 As shown, the structure and arrangement of the second conveying component 31 will be further explained below.

[0108] In the embodiment disclosed in this embodiment, the second conveying assembly 31 includes a conveying component 310 and a guide component 311 located above the conveying component 310 in the vertical direction and mounted on the frame 1; the conveying component 310 includes a conveyor belt extending from the inlet end to the outlet end of the second conveying assembly 31, and in the vertical direction, the guide component 311 is located above the conveyor belt, the extraction component 301 conveys the sheet material to the inlet end of the conveying component 310 and at least partially adheres to the conveyor belt, and the guide component 311 presses the sheet material when the sheet material is conveyed by the conveyor belt.

[0109] Specifically, when the sheet material is conveyed to the inlet end of the conveying component 310 and at least partially adheres to the conveyor belt, the guiding component 311 presses the sheet material onto the conveying plane of the conveyor belt, thus preventing the sheet material from slipping relative to the conveying plane and achieving the function of limiting and guiding the sheet material.

[0110] More specifically, the structure and arrangement of the guide component 311 are not limited.

[0111] In one implementation, such as Figure 5 As shown, the guide component 311 includes a roller frame 3110 and multiple rollers. The roller frame 3110 includes multiple spaced-apart roller rods 3110a, both ends of which are fixed to the frame 1. Multiple rollers are spaced-apart on each roller rod 3110a, and each roller is rotatably mounted on its corresponding roller rod 3110a. During the conveyor belt transport of the sheet material, the rollers, while guiding and limiting the sheet material, can rotate to reduce resistance to the sheet material. Furthermore, by using multiple rollers, the sheet material can be flattened, ensuring it is processed in a relaxed state.

[0112] In another embodiment, the guide component 311 is configured as a limiting plate, which is disposed along the conveying direction L and mounted on the frame 1, and is parallel to the conveying plane of the conveyor belt of the conveying component 310. Furthermore, the vertical distance between the limiting plate and the conveying plane of the conveyor belt should be greater than the thickness of the sheet material.

[0113] The mechanism and arrangement of the conveying component 310 are not limited; for example, it can be a conveyor belt, a conveying platform, etc.

[0114] Furthermore, such as Figures 2-5 As shown below, the structure and configuration of the correction component 4 will be further explained.

[0115] In the embodiment disclosed in this example, the correction component 4 includes a drive component 40, an adjustment component 41 and a position detection component disposed on the frame 1. The adjustment component 41 is tractively connected to the power output end of the drive component 40 and can move along the width direction of the frame 1.

[0116] Specifically, such as Figure 3 As shown, the drive component 40 includes a first drive component 401 and a second drive component 402 that are spaced apart on the frame 1 along the width direction of the frame 1. The adjustment component 41 includes a first adjustment component 410 that is spaced apart on the frame 1 along the width direction of the frame 1 and is drivenly connected to the first drive component 401, and a second adjustment component 411 that is drivenly connected to the second drive component 402.

[0117] More specifically, when the sheet material is conveyed to its downstream end by the second conveying component 31, if the sheet material is not aligned with the inlet of the next station, the first driving component 401 and the second driving component 402 respectively drive the first adjusting component 410 and the second adjusting component 411 to move along the width direction of the frame 1, so as to push the sheet material to translate along the width direction of the frame 1; thereby aligning the sheet material with the inlet of the next station, thus ensuring that the sheet material can accurately enter the next station.

[0118] It should be understood that the first adjusting member 410 can be moved along the width direction of the frame 1 by the first driving member 401 to push the sheet material to translate along the width direction of the frame 1; and the second adjusting member 411 can be moved along the width direction of the frame 1 by the second driving member 402 to push the sheet material to translate along the width direction of the frame 1.

[0119] Specifically, the structure and arrangement of the first driving component 401, the second driving component 402, the first adjusting component 410, and the second adjusting component 411 are not limited.

[0120] In one embodiment, the first drive component 401 includes a first power motor mounted on the frame 1 and a first cam rotatably connected to the frame 1 and drivingly connected to the first power motor; the second drive component 402 includes a second power motor mounted on the frame 1 and a second cam rotatably connected to the frame 1 and drivingly connected to the second power motor; the first adjustment component 410 is configured as a first push block and the second adjustment component 411 is configured as a second push block.

[0121] Specifically, in the vertical direction, both the first pushing block and the second pushing block are located above the downstream end of the second conveying assembly 31, and the bottom wall surfaces of the first pushing block and the second pushing block abut against the upper surface of the downstream end of the second conveying assembly 31; wherein, the first power motor drives the first cam to rotate, thereby causing the first pushing block to translate along the width direction of the frame 1; the second power motor drives the second cam to rotate, thereby causing the second pushing block to translate along the width direction of the frame 1.

[0122] More specifically, when the sheet material is conveyed to its downstream end by the second conveying component 31, if the sheet material is not aligned with the inlet of the next station, the sheet material can be moved to change its position by the first power motor driving the first cam to rotate and the first push block to translate along the width direction of the frame 1, and / or the second power motor driving the second cam to rotate and the second push block to translate along the width direction of the frame 1, so that it is accurately aligned with the inlet of the next station.

[0123] In another embodiment, the first driving component 401 includes a first motor mounted on the frame 1 and a first rotating wheel rotatably connected to the frame 1 and driven by the first power motor; the second driving component 402 includes a second motor mounted on the frame 1 and a second rotating wheel rotatably connected to the frame 1 and driven by the second power motor; the first adjusting component 410 is configured as a first push rod, and the second adjusting component 411 is configured as a second push rod. Furthermore, the first rotating wheel has elliptical slide rails on its two side walls, and one end of the first push rod is slidably connected to the elliptical slide rails of the first rotating wheel; the second rotating wheel has elliptical slide rails on its two side walls, and one end of the second push rod is slidably connected to the elliptical slide rails of the second rotating wheel.

[0124] Specifically, in the vertical direction, both the first push rod and the second push rod are located above the downstream end of the second conveying assembly 31, and the bottom wall surfaces of the first push rod and the second push rod abut against the upper surface of the downstream end of the second conveying assembly 31; wherein, the first motor drives the first rotating wheel to rotate, and the first push rod slides in the elliptical slide rail of the first rotating wheel, while the first push rod translates along the width direction of the frame 1; the second motor drives the second rotating wheel to rotate, and the second push rod slides in the elliptical slide rail of the second rotating wheel, while the second push rod translates along the width direction of the frame 1.

[0125] Furthermore, in the embodiment disclosed in this example, the position detection component (not shown in the figure) includes a correction sensor, a guide, and a power component; wherein, along the conveying direction L, the guide is located downstream of the second conveying assembly 31, extends along the width direction of the frame 1, and both ends are fixedly connected to the frame 1; the power component is fixedly installed on the frame 1; the correction sensor is slidably disposed on the guide; the drive end of the power component is drively connected to the correction sensor; and, in the vertical direction, both the guide and the correction sensor are located above the downstream surface of the second conveying assembly 31.

[0126] Specifically, the power unit can drive the correction sensor to slide on the guide, changing the position of the correction sensor in the width direction of the frame 1 to align with the initial positioning point of the sheet.

[0127] More specifically, by setting a correction sensor, it is possible to detect whether the sheet material is located at the initial positioning point. If the correction sensor is offset from the initial positioning point of the sheet material, the position of the sheet material can be adjusted by the correction component 4 to align it with the feed port of the next station. Furthermore, by setting a power component to drive the correction sensor to slide on the guide, changing the position of the correction sensor in the width direction of the frame 1, the correction sensor can be aligned with the initial positioning point on the sheet material when adapting to sheet materials of different widths.

[0128] It is important to understand that, along the conveying direction L, the initial positioning point of the base material roll is set at a target at the upstream and downstream ends of the sheet material. When the correction sensor is aligned with the initial positioning point, the sheet material is aligned with the feed port of the next station.

[0129] The structural configuration of the guide and power components is not limited.

[0130] In one embodiment, the guide is configured as a slide bar, and the power component is configured as an electric push rod. The slide bar extends along the width direction of the frame and its two ends are fixedly connected to the frame. The electric push rod is mounted on the frame, and its drive end extends along the width direction of the frame and is fixedly connected to the housing of the correction sensor.

[0131] In another embodiment, the guide is configured as a guide rod, and the power component is configured as a linear drive motor. The guide rod extends along the width direction of the frame and its two ends are fixedly connected to the frame. The linear drive motor is mounted on the frame, and its drive end extends along the width direction of the frame and is fixedly connected to the housing of the correction sensor.

[0132] More specifically, the correction assembly 4 also includes a guide limiting component 42. The guide limiting component 42 includes a mounting rod and multiple limiting springs. The mounting rod extends along the width direction of the frame and is fixedly connected to the frame at both ends. The multiple limiting springs are fixedly mounted on the mounting rod at intervals along the width direction of the frame, and the elastic ends of the multiple limiting springs extend along the conveying direction L, with the ends of the elastic ends abutting against the frame 1; thereby achieving the function of limiting the sheet material conveyed to the correction assembly 4.

[0133] More specifically, the web guiding assembly can also be equipped with a controller, which is electrically connected to both the drive component 40 and the web guiding sensor of the web guiding assembly 4. During the sheet material feeding process, the web guiding sensor feeds back the detected sheet material position information to the controller, which then controls the drive component 40 based on the sheet material position information. For example, when the sheet material position deviates, the controller controls the drive component 40 to move, and in conjunction with the adjusting component 41, pushes the sheet material along the width direction of the frame to align it with the inlet of the next station.

[0134] More specifically, the correction component 4 also includes a feeding platform 43. Along the conveying direction L, the feeding platform 43 is located downstream of the conveying component 310 and is flush with the conveying plane of the conveying component 310. By setting the feeding platform 43, when the sheet material is conveyed to its downstream end by the conveying component 430, the sheet material can smoothly arrive at the feeding platform 43, which facilitates the correction component 4 to perform correction work.

[0135] The above description illustrates the implementation of this utility model through specific embodiments. Those skilled in the art can easily understand other advantages and effects of this utility model from the content disclosed in this specification. Although the description of this utility model is presented in conjunction with preferred embodiments, this does not mean that the features of this utility model are limited to this embodiment. On the contrary, the purpose of describing the utility model in conjunction with the embodiments is to cover other options or modifications that may be derived based on the claims of this utility model. To provide a deep understanding of this utility model, many specific details are included in the above description. This utility model may also be implemented without using these details. Furthermore, to avoid confusion or obscuring the focus of this utility model, some specific details will be omitted in the description. It should be noted that, without conflict, the embodiments and features in the embodiments of this utility model can be combined with each other.

[0136] It should be noted that in this specification, similar reference numerals and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

[0137] In the description of this embodiment, it should be noted that the terms "upper", "lower", "inner", "bottom", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship that the utility model product is usually placed in during use. They are only for the convenience of describing the utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the utility model.

[0138] The terms “first”, “second”, etc., are used only to distinguish descriptions and should not be interpreted as indicating or implying relative importance.

[0139] In the description of this embodiment, it should also be noted that, unless otherwise explicitly specified and limited, the terms "set up," "connected," and "linked" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this embodiment based on the specific circumstances.

Claims

1. A sheet material feeding device for a paper bag forming machine, characterized in that, include: The frame is provided with a loading station and a conveying station in sequence along the conveying direction; A sheet height adjustment mechanism is provided on the frame and located at the feeding station. Sheets are stacked on the sheet height adjustment mechanism and the top height of the sheets can be adjusted vertically. A sheet material conveying mechanism is disposed at the conveying station and includes a first conveying component and a second conveying component arranged sequentially along the conveying direction; wherein, The first conveying assembly includes an extraction component that extracts the topmost sheet from the stacked sheets and conveys it along the conveying direction to the inlet end of the second conveying assembly; the second conveying assembly includes a conveying component movable along the conveying direction, the sheet conveyed to the inlet end of the second conveying assembly at least partially abutting the conveying component and conveyed via the conveying component to the outlet end of the second conveying assembly; and... A correction component is also provided on the frame, downstream of the second conveying assembly. The correction component includes a drive component and an adjustment component mounted on the frame. The adjustment component is tractively connected to the power output end of the drive component and can move along the width direction of the frame. When the sheet material is conveyed to the downstream end of the second conveying assembly, the driving component drives the adjusting component to push the sheet material to translate along the width direction of the frame to align with the inlet of the next station.

2. The sheet material feeding device for the paper bag forming machine as described in claim 1, characterized in that, The sheet height adjustment mechanism includes a placement platform, a power component and a lifting component mounted on the frame, wherein the power component is drively connected to the lifting component, the placement platform is disposed on the lifting component, and the sheets are stacked on the placement platform; wherein... The power component drives the lifting component and, in conjunction with it, moves the placement platform back and forth in the vertical direction.

3. The sheet material feeding device for the paper bag forming machine as described in claim 2, characterized in that, The lifting component includes a first zipper mechanism and a second zipper mechanism respectively connected to both ends of the placement platform in the width direction; the power component includes a first drive motor and a second drive motor mounted on the frame; wherein... The first zipper mechanism includes a first zipper and a first sprocket, and the second zipper mechanism includes a second zipper and a second sprocket. The first drive motor is driven to one end of the first zipper through the first sprocket, and the other end of the first zipper is fixedly connected to one end of the placement platform. The second drive motor is driven to one end of the second zipper through the second sprocket, and the other end of the second zipper is fixedly connected to the other end of the placement platform.

4. The sheet material feeding device for the paper bag forming machine as described in claim 2, characterized in that, The sheet height adjustment mechanism further includes an air blowing component, which is mounted on the frame and has its air blowing port facing the opening of the placement platform along the width direction of the frame; wherein, in the vertical direction, the air blowing port of the air blowing component is aligned with the uppermost sheet among the sheets placed on the placement platform.

5. The sheet material feeding device for the paper bag forming machine as described in claim 1, characterized in that, The extraction component includes a first suction cup component and a second suction cup component, wherein the first suction cup component and the second suction cup component are sequentially arranged on the frame along the conveying direction; wherein, the suction portion of the first suction cup component is aligned vertically with the upstream end of the sheet material stacked on the placement table in the conveying direction, and the suction portion of the second suction cup component is aligned vertically with the middle position of the sheet material adsorbed by the first suction cup component in the conveying direction, and moves the downstream side portion of the sheet material to the conveying component along the conveying direction.

6. The sheet material feeding device for the paper bag forming machine as described in claim 5, characterized in that, The first conveying assembly further includes a limiting component and a sensing component mounted on the frame; wherein, Along the conveying direction, the limiting component is located downstream of the extraction component and near the inlet end of the conveying component, pressing and limiting the end of the sheet material entering the inlet end of the conveying component; and the limiting component includes a limiting rod and a plurality of limiting wheels. The limiting rod extends along the width direction of the frame and is fixed at both ends to the frame. The plurality of limiting wheels are spaced apart on the limiting rod along the width direction of the frame and are rotatably mounted on the limiting rod. In the vertical direction, the bottom ends of the plurality of limiting wheels are aligned with the top end of the conveying component. In the vertical direction, the sensing component is disposed on the frame and above the sheet height adjustment mechanism, and the sensing component detects the top height position of the sheet placed on the placement table.

7. The sheet material feeding device for the paper bag forming machine as described in claim 1, characterized in that, The second conveying assembly further includes a guide member located vertically above the conveying component and mounted on the frame. The conveying component includes a conveyor belt extending from an inlet end to an outlet end of the second conveying assembly. Vertically, the guide member is located above the conveyor belt. The extraction component conveys the sheet material to the inlet end of the conveying component and at least partially abuts against the conveyor belt. As the sheet material is conveyed by the conveyor belt, the guide member presses down on the sheet material. The guide component includes a roller frame and a plurality of rollers. The roller frame includes a plurality of spaced roller rods. Both ends of each roller rod are fixed to the frame. A plurality of rollers are spaced apart on each roller rod. Each roller is rotatably mounted on a corresponding roller rod.

8. The sheet material feeding device for the paper bag forming machine as described in claim 1, characterized in that, The driving component includes a first driving member and a second driving member spaced apart on the frame along the width direction of the frame. The adjusting component includes a first adjusting member spaced apart on the frame along the width direction of the frame and pulsatorically connected to the first driving member, and a second adjusting member pulsatorically connected to the second driving member; wherein... When the sheet material is conveyed to its downstream end by the second conveying assembly, the first driving member and the second driving member respectively drive the first adjusting member and the second adjusting member to move along the width direction of the frame, so as to push the sheet material to translate along the width direction of the frame.

9. The sheet material feeding device for the paper bag forming machine as described in claim 8, characterized in that, in, The first driving component includes a first power motor mounted on the frame and a first cam rotatably connected to the frame and drivingly connected to the first power motor; The second drive component includes a second power motor mounted on the frame and a second cam rotatably connected to the frame and drivingly connected to the second power motor; The first adjusting member is configured as a first pushing block, and the second adjusting member is configured as a second pushing block. Vertically, both the first and second pushing blocks are located above the downstream end of the second conveying assembly, and the bottom walls of the first and second pushing blocks abut against the upper surface of the downstream end of the second conveying assembly. The first power motor drives the first cam to rotate, and in conjunction with the first push block, translates along the width direction of the frame; the second power motor drives the second cam to rotate, and in conjunction with the second push block, translates along the width direction of the frame.

10. The sheet material feeding device for the paper bag forming machine as described in claim 1, characterized in that, The correction assembly further includes a position detection component, which comprises a correction sensor, a guide, and a power component. Along the conveying direction, the guide is located downstream of the second conveying assembly, extends along the width of the frame, and is fixedly connected to the frame at both ends. The power component is fixedly mounted on the frame. The correction sensor is slidably disposed on the guide, and the drive end of the power component is drively connected to the correction sensor. Vertically, both the guide and the correction sensor are located above the downstream surface of the second conveying assembly. The power component can drive the correction sensor to slide on the guide, changing the position of the correction sensor in the width direction of the frame to align with the initial positioning point of the sheet material.

Images