Novel packaging bag supply device

Abstract

The utility model relates to a new type packaging bag supply device belongs to material packaging supply related equipment technical field, according to production process sequence includes automatic deviation rectifying unwinding system, automatic cutting system, automatic sewing system, mobile receiving system, opening bag mouth system and bag mouth opening system in turn. The utility model can carry out unwinding, flattening, conveying, dimension cutting, bag tail sewing seal, opening, turning over and opening of a series of operations to packaging bag raw material in turn, can provide a integrated degree higher packaging bag supply and material filling as a whole's packaging supply system for material packaging. The utility model can ensure the accuracy of single supply, and the floor area and needed space are smaller, and the production process is relatively simple. The utility model structure design is reasonable, can realize intelligent automatic control operation, and simple operation and reliable use, greatly improve packaging supply efficiency in practical production.

Description

Technical Field

[0001] This invention belongs to the technical field of material packaging supply equipment, and more specifically, relates to a novel packaging bag supply device. Background Technology

[0002] Bagged materials are one of the most classic packaging methods for granular materials in current technology. Currently, there are two main supply methods for packaging bags on the market: Method 1: Purchase tubular packaging bag raw materials, then use existing cutting and sewing machines to cut, sew the bottom of the packaging bag raw materials, move them horizontally and forward to the bag opening equipment, and then cooperate with the filling port of the filling equipment to complete the material bagging operation; Method 2: Purchase finished packaging bags, then use existing automatic bag feeding units to pick up neatly stacked finished packaging bags using suction cups or suction pipes, then move them horizontally or laterally to the bag opening equipment, and finally cooperate with the filling port to complete the material bagging operation.

[0003] Of the two operating methods mentioned above, the first method has the advantage of ensuring the supply of a single packaging bag each time with a high accuracy rate. However, its disadvantages are also quite obvious, namely, it requires a larger area and space. The second method has the advantage of requiring a relatively smaller area and space, but its disadvantages are that it requires the purchase of finished packaging bags, which increases costs. In addition, it requires manual assistance, the operation is more frequent, and it is prone to packaging bag supply errors, static electricity, and sticking phenomena. The accuracy rate of packaging bag supply is relatively low. Summary of the Invention

[0004] (I) Technical Issues

[0005] In summary, how to provide a highly integrated packaging supply system that combines packaging bag supply and material filling has become a problem that urgently needs to be solved by those skilled in the art.

[0006] (II) Technical Solution

[0007] The present invention provides a novel packaging bag supply device. In the present invention, according to the production process sequence, the novel packaging bag supply device includes an automatic deviation correction unwinding system, an automatic cutting system, an automatic sewing system, a moving material receiving system, a bag opening system, and a bag opening stretching system connected in sequence.

[0008] The automatic unwinding and correction system is used to gradually unwind the packaged bag material and correct its deviation during the unwinding process. The automatic cutting system is used to cut the packaged bag material to a set length. The automatic sewing system is used to sew the tail of the cut packaged bag material to form a packaged bag individual with an open front and a closed tail. The moving receiving system is used to transport the packaged bag individual along a set path. The bag opening system is used to open the front of the packaged bag individual. The bag opening spreading system is used to flip the opened packaged bag individual so that the bag opening faces upward for receiving material.

[0009] Preferably, in the novel packaging bag supply device provided by the present invention:

[0010] The bag opening system is used to open the individual packaging bags in the height direction, while the bag opening spreading system is used to adsorb and fix the individual packaging bags on the left and right sides, and to make the bag opening face upwards for receiving materials by flipping.

[0011] Preferably, in the novel packaging bag supply device provided by the present invention:

[0012] The automatic correction and unwinding system includes a correction unit group, a power component, and a tensioning component;

[0013] The correction unit group includes a first frame, on which multiple correction rollers are arranged. All the correction rollers are spaced apart. The packaging bag raw material takes an S-shaped route to bypass all the correction rollers and is corrected by the correction rollers during the conveying process.

[0014] The power assembly includes a driven roller and a driving roller. The surfaces of the driven roller and the driving roller are provided with friction layers to increase the friction after contact with the raw materials of the packaging bag. A drive motor is connected to the driving roller, and the driving motor drives the driving roller to rotate. The raw materials of the packaging bag pass between the driven roller and the driving roller and are conveyed by the driving roller.

[0015] The tensioning assembly includes a second frame and a third frame, on which multiple tension rollers are arranged at intervals. The packaging bag material is conveyed by bypassing all the tension rollers in an S-shaped path. The second frame is fixedly arranged, and one end of the third frame is hinged. The other end of the third frame is provided with an adjustable spring assembly. The position of the other end of the third frame is adjusted by the adjustable spring assembly, thereby adjusting the distance between the third frame and the second frame to adjust the tension of the packaging bag material.

[0016] Preferably, in the novel packaging bag supply device provided by the present invention:

[0017] The present invention also includes a plurality of steering rollers, which are disposed between the automatic correction unwinding system and the automatic cutting system for steering the conveying of packaging bag raw materials.

[0018] Preferably, in the novel packaging bag supply device provided by the present invention:

[0019] The automatic cutting system includes a cutting platform and a cutting head that is positioned above the cutting platform and can move up and down. The controlled movement of the cutting head can cut packaging bag raw materials of a set length.

[0020] Preferably, in the novel packaging bag supply device provided by the present invention:

[0021] The automatic cutting system also includes a flattening component, which is located in front of the cutting head along the production process sequence, and is used to flatten the raw material of the packaging bag before cutting.

[0022] The flattening assembly includes an upper flattening roller and a lower flattening roller. The lower flattening roller is fixedly installed, while the height of the upper flattening roller is adjustable.

[0023] Preferably, in the novel packaging bag supply device provided by the present invention:

[0024] It also includes a transverse conveying system. The automatic sewing system includes a sewing head that can sew the cut packaging bag material. The automatic sewing system is set on the transverse conveying system and can move laterally through the transverse conveying system so that the moving path of the sewing head covers the packaging bag material.

[0025] Preferably, in the novel packaging bag supply device provided by the present invention:

[0026] The mobile receiving system is a belt conveyor system or a roller conveyor system, and the conveying length of the mobile receiving system is greater than the length of the individual packaging bag.

[0027] Preferably, in the novel packaging bag supply device provided by the present invention:

[0028] The bag opening system includes a first bag opening negative pressure adsorption component that can be moved up and down under control and a second bag opening negative pressure adsorption component that is fixedly set. The second bag opening negative pressure adsorption component is set at the end of the mobile receiving system, and the first bag opening negative pressure adsorption component is set on the upper side of the second bag opening negative pressure adsorption component.

[0029] Preferably, in the novel packaging bag supply device provided by the present invention:

[0030] The bag opening system includes a rotating arm that can move in a controlled manner between a vertically downward state and a horizontal state. A third bag opening negative pressure adsorption component is provided on the rotating arm. When the rotating arm moves to the vertically downward state, it can connect and cooperate with the bag opening system to adsorb the two sides after the opening of the individual packaging bag under negative pressure. After the bag opening system is released, it flips and moves to the horizontal state so that the bag opening faces upward for receiving materials.

[0031] (III) Beneficial Effects

[0032] As described above, the present invention provides a novel packaging bag supply device. In this invention, the novel packaging bag supply device, according to the production process sequence, includes, sequentially connected, an automatic deviation correction and unwinding system, an automatic cutting system, an automatic sewing system, a moving material receiving system, a bag opening system, and a bag opening stretching system. The automatic deviation correction and unwinding system is used to gradually unwind the packaged bag material from a roll and correct its deviation during the unwinding process. The automatic cutting system is used to cut the packaged bag material to a set length. The automatic sewing system is used to sew the tail end of the cut packaged bag material to form a packaged bag individual with an open front and a closed tail. The moving material receiving system is used to transport the packaged bag individual along a set path. The bag opening system is used to open the front end of the packaged bag individual. The bag opening stretching system is used to flip the opened packaged bag individual so that the bag opening faces upwards for receiving material.

[0033] Through the above structural design, the novel packaging bag supply device provided by this invention can sequentially perform a series of operations on packaging bag raw materials, including unwinding, flattening, conveying, dimensional cutting, bag tail sewing and sealing, opening, flipping and unfolding of individual packaging bags. This provides a highly integrated packaging supply system that combines packaging bag supply and material filling. This invention ensures the accuracy of single-bag supply, requires less floor space and area, has a relatively simple production process, and a low probability of mechanical failure. The invention has a reasonable structural design, enabling intelligent automatic control operation. It is simple to operate and reliable in use, and its application in actual production can greatly improve packaging supply efficiency. Attached Figure Description

[0034] Figure 1 This is a side view of the novel packaging bag supply device in an embodiment of the present invention;

[0035] Figure 2 This is a top view of the novel packaging bag supply device in an embodiment of the present invention.

[0036] exist Figure 1 and Figure 2 In the diagram, the correspondence between component names and reference numerals is as follows:

[0037] First frame 1, correcting roller 2, driven roller 3, driving roller 4, second frame 5, third frame 6

[0038] 7. Tensioning roller; 8. Adjustable spring assembly; 9. Diverting roller; 10. Cutting cutter head; 11. Upper pressure roller.

[0039] 12. Pressing roller; 13. Lateral conveying system; 14. Sewing head

[0040] First bag opening negative pressure adsorption component 15, rotating support arm 16;

[0041] Automatic deviation correction and unwinding system; automatic cutting system; automatic sewing system; automatic sewing system.

[0042] The system includes a mobile receiving system (d), a bag opening system (e), and a bag opening stretching system (f). Detailed Implementation

[0043] To make the objectives, technical solutions, and advantages of the present invention clearer, the embodiments of the present invention will be described in further detail below with reference to the accompanying drawings.

[0044] Furthermore, in the description of this invention, the terms "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," and "bottom," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing the invention and do not require the invention to be constructed and operated in a specific orientation; therefore, they should not be construed as limitations on the invention. The terms "connected" and "linked" used in this invention should be interpreted broadly. For example, they can refer to a fixed connection or a detachable connection; they can refer to a direct connection or an indirect connection through intermediate components. Those skilled in the art can understand the specific meaning of the above terms according to the specific circumstances.

[0045] Please refer to Figure 1 and Figure 2 ,in, Figure 1 This is a side view of the novel packaging bag supply device in an embodiment of the present invention; Figure 2 This is a top view of the novel packaging bag supply device in an embodiment of the present invention.

[0046] This invention provides a novel packaging bag supply device. This device takes raw packaging bag material (rolled, uncut packaging bags, typically consisting of two layers of film, which are cut to a set length to form a single packaging bag, and then sewn shut at the end, with the front open for filling) and automatically fills the bag by unwinding, cutting, and sewing. The device then opens and flips the bag to create a usable, complete packaging bag. Finally, it works in conjunction with a filling device (an external device used for quantitative output of granular or powdered materials) to complete the automatic filling process.

[0047] In this invention, according to the production process sequence, the novel packaging bag supply device includes an automatic deviation correction and unwinding system, an automatic cutting system, an automatic sewing system, a moving receiving system, a bag opening system, and a bag opening system, which are sequentially connected (the connection refers to the ability of the various systems to work together to complete a series of operations from raw material to complete packaging bag and bag opening). The functions of each of these systems are as follows: 1. The automatic deviation correction and unwinding system is used to gradually unwind the packaged bag material and correct its deviation during the unwinding process; 2. The automatic cutting system is used to cut the packaged bag material to a set length; 3. The automatic sewing system is used to sew the tail end of the cut packaged bag material to form a packaged bag that can be opened at the front and closed at the rear; 4. The moving receiving system is used to transport the packaged bag according to a set path; 5. The bag opening system is used to open the front end of the packaged bag; 6. The bag opening system is used to flip the opened packaged bag so that the bag opening faces upwards for receiving material.

[0048] The specific structure of this invention is as follows:

[0049] 1. The new packaging bag supply device is equipped with a frame, which is a metal frame structure, such as a rectangular frame structure supported by steel. The frame is used for the installation of other components or systems. The specific structure of the frame will not be described in detail here, as the design standard is to meet the installation requirements of other structures or systems.

[0050] 2. The new packaging bag supply device is equipped with an automatic correction and unwinding system, which includes a correction unit group, a power component, and a tensioning component.

[0051] Specifically, the correction unit group includes a first frame 1, which is a metal mounting frame structure. The first frame 1 includes two frame plates arranged vertically (or front-to-back), parallel and spaced apart. Mounting grooves are provided on the frame plates. The first frame 1 is fixedly mounted on the machine frame. Multiple correction rollers 2 are installed on the first frame 1, spaced apart. The packaging bag material follows an S-shaped route around all the correction rollers 2, and is corrected by the correction rollers 2 during transport. The correction rollers 2 are preferably long, straight, circular rollers, i.e., they are circular rollers of equal diameter. Multiple correction rollers 2 are provided, which can unfold during the transport of the packaging bag material, preventing deviation or localized accumulation of the correction rollers 2. In other embodiments of the present invention, the straightening roller 2 has a variable diameter structure, extending from the axial midpoint of the straightening roller 2 to both ends, with the cross-sectional diameter of the straightening roller 2 gradually decreasing, thus forming a spindle-shaped structure that is larger in the middle and smaller at both ends. This structural design of the straightening roller 2 ensures that the sides of the packaging bag material tend to expand outwards during transport, further guaranteeing the effective expansion of the packaging bag material by the straightening roller 2. Bearing seats are provided at both ends of the straightening roller 2, and these seats are installed in the mounting grooves of the frame plate, thereby achieving fixed installation of the straightening roller 2 on the first frame 1. After the packaging bag material is output from the packaging roller, it follows an S-shaped path around all the straightening rollers 2, undergoing positional correction and expansion during transport via the straightening rollers 2.

[0052] Because the raw materials for packaging bags involve numerous processes and a long conveying distance, this invention also includes a power assembly to "add force" to the conveying of the raw materials during transport, ensuring sufficient conveying power. Specifically, the power assembly includes a driven roller 3 and a driving roller 4. The surfaces of the driven roller 3 and the driving roller 4 are provided with a friction layer (which can be a rubber layer, or more specifically, a frosted surface structure, to ensure effective friction when the driving roller 4 and the driven roller 3 contact the raw materials). This friction layer increases the frictional force between the friction layer (driving roller 4 and driven roller 3) and the raw materials. A drive motor is connected to the driving roller 4, which drives the driving roller 4 to rotate. The raw materials pass between the driven roller 3 and the driving roller 4, and are conveyed by the driving roller 4. Furthermore, the driving roller 4 is fixed, while the driven roller 3 is adjustable. By adjusting the contact and contact pressure between the driven roller 3 and the driving roller 4, the "force-adding" effect on the raw materials is ensured. Of course, the adjustable structure can also be a spring assembly, so that the driven roller 3 and the driving roller 4 are in elastic contact.

[0053] The tensioning assembly includes a second frame 5 and a third frame 6, on which multiple tension rollers 7 are mounted, spaced apart. The structure of the second frame 5 and the third frame 6 is similar to that of the first frame 1, both used for mounting multiple roller structures, and will not be described in detail here. With the second frame 5 and the third frame 6 in place, the packaging bag material is conveyed via an S-shaped path, bypassing all the tension rollers 7. The tension rollers 7 also help to correct deviations and further expand the conveyed packaging bag material. The second frame 5 is fixedly installed (fixed on the machine frame), and one end of the third frame 6 is hinged (one end of the third frame 6 is hinged on the machine frame). The other end of the third frame 6 is provided with an adjustable spring assembly 8 (the other end of the third frame 6 is elastically installed on the machine frame through the adjustable spring assembly 8). The position of the other end of the third frame 6 is adjusted by adjusting the position of the adjustable spring assembly 8, thereby adjusting the distance between the third frame 6 and the second frame 5, so as to adjust the tension of the packaging bag material.

[0054] As can be seen from the above, the present invention can be equipped with a spring assembly and must be equipped with an adjustable spring assembly 8. The structures of the two spring assemblies can be the same. Specifically, the adjustable spring assembly 8 includes a mounting frame, on which a spring is provided. One end of the spring is fixedly mounted on the mounting frame, and the other end of the spring is a movable end. The mounting frame is hinged to the machine frame, and the movable end of the spring is connected to the third frame 6 (the mounting seat of the driven roller 3). In this way, the spring can apply an elastic force to the third frame 6 and the mounting seat of the driven roller 3 in a specific direction (for the third frame 6, the direction away from the second frame 5, and for the mounting seat of the driven roller 3, the direction towards the driving roller 4), so that the third frame 6 and the mounting seat of the driven roller 3 have an elastic movement tendency in the specific direction.

[0055] The conveying path of the packaging bag raw materials is relatively long. To avoid making the overall machine too long, this invention also includes multiple guide rollers 9. This invention does not limit the installation position of the guide rollers 9 on the frame. Specifically, the guide rollers 9 are positioned between the automatic correction unwinding system and the automatic cutting system to redirect the conveying of the packaging bag raw materials.

[0056] 3. The automatic cutting system is used to cut packaging bag raw materials to a fixed size. The automatic cutting system includes a cutting platform (a flat steel platform with a flat upper surface for stable output of packaging bag raw materials) and a cutting head 10 positioned above the cutting platform and capable of vertical movement. The controlled movement of the cutting head 10 cuts packaging bag raw materials to a set length. A cylinder device is installed above the cutting head 10, and a cutting head seat is mounted on the cylinder device. The cutting head 10 is detachably mounted on the cutting head seat for easy replacement. Pressure rollers are installed on both sides of the cutting platform to press down on the sides of the packaging bag raw materials, preventing deformation during cutting and ensuring a smoother cutting operation. The present invention can also set a speed measuring wheel on the cutting platform, and also set a timer. By setting the time, the raw materials of packaging bags of a certain size can be cut (for example, the speed of the speed measuring wheel is V, the circumference of the speed measuring wheel is S, and the cutting time interval of the cutting head 10 is H, then V*S*H is the length of the raw materials of packaging bags passing through the speed measuring wheel in time H. Under the condition that the speed of the speed measuring wheel V is constant and the axial length S is constant, the cutting length of the raw materials of packaging bags can be adjusted by changing H).

[0057] As described above, the present invention provides pressure rollers on both sides of the cutting platform. These rollers press down on both sides of the packaging bag material, ensuring smooth cutting. In addition to the above structure, the present invention can also include a flattening component. This component generates a "stopping" force on the packaging bag material, preventing deformation during cutting. Specifically, following the production process sequence, the flattening component is positioned in front of the cutting head 10 to flatten the packaging bag material before cutting. The flattening component includes an upper flattening roller 11 and a lower flattening roller 12. The lower flattening roller 12 is fixedly installed, while the height of the upper flattening roller 11 is adjustable.

[0058] 4. This invention includes a transverse conveying system 13, which is part of the automatic sewing system and is used for directional reciprocating conveying of the automatic sewing system. The automatic sewing system includes a sewing head 14 capable of sewing the cut packaging bag material. Specifically, the automatic sewing system used in this invention has the same structure as existing sewing devices; that is, any prior art device capable of sewing and sealing packaging bags can be used as an automatic sewing system. The transverse conveying system 13 includes a conveying track and a linear motor, hydraulic cylinder, or pneumatic cylinder. The automatic sewing system is mounted on the conveying track of the transverse conveying system 13 and can move laterally via the transverse conveying system 13 (driven by a linear motor, hydraulic cylinder, or pneumatic cylinder) so that the moving path of the sewing head 14 covers the packaging bag material. The conveying track is mounted on a frame, allowing the automatic sewing system to move above the cut packaging bag material, while the sewing head 14 can contact the position on the packaging bag material that needs to be sewn and sew and seal it.

[0059] 5. The mobile receiving system is either a belt conveyor or a roller conveyor, and the conveying length of the mobile receiving system is greater than the length of the individual packaging bags. The mobile receiving system provides directional and constant-speed conveying of the individual packaging bags.

[0060] 6. The bag opening system is installed on the frame. The bag opening system includes a first bag opening negative pressure adsorption component 15 that can be moved up and down under control (a linear drive device is installed on the frame, which is a linear motor, a cylinder or a hydraulic cylinder. The linear drive device drives the first bag opening negative pressure adsorption component 15 to reciprocate in the height direction, and the movement is formed to ensure that the bag opening of the individual packaging bag can be opened to a near-circular opening state) and a second bag opening negative pressure adsorption component that is fixedly installed. The second bag opening negative pressure adsorption component is installed at the end of the moving material receiving system, and the first bag opening negative pressure adsorption component 15 is installed on the upper side of the second bag opening negative pressure adsorption component.

[0061] 7. The bag opening system includes a rotating support arm 16, which is a steel frame support arm structure. The rotating support arm 16 can move controllably between a vertically downward position and a horizontal position. There are two rotating support arms 16, which move synchronously and are arranged in the same plane. The rotating support arms 16 are approximately arc-shaped long support arms, and the two rotating support arms 16 are arranged opposite each other to form a shape similar to a human arm embracing. A third bag opening negative pressure adsorption component is provided on the rotating support arm 16. When the rotating support arm 16 moves to the vertically downward position, it can connect with the bag opening system to perform negative pressure adsorption on both sides after the opening of the packaging bag. After the bag opening system is released, it flips to the horizontal position to make the bag opening face upward for receiving materials.

[0062] Furthermore, the bag opening system is used to open the individual packaging bags in the vertical direction, while the bag opening spreading system is used to suction and fix the individual packaging bags on both sides, and to make the bag opening face upwards for receiving materials by flipping it over. Specifically, the bag opening system is located behind the bag opening spreading system, suctioning at a position 3-5cm from the front opening of the individual packaging bag (the bag opening system can open the front opening of the individual packaging bag in the vertical direction). When the bag opening spreading system is activated, the rotating support arm 16 flips downwards to a vertical position. In this state, the rotating support arm 16 has a mounting part on the side facing the bag opening system. The mounting part is exactly aligned with both sides of the front opening of the individual packaging bag (at this time, the individual packaging bag has already been opened in the vertical direction). Multiple third bag openings are provided on the mounting part. Under the action of negative pressure adsorption, the front openings of individual packaging bags are adsorbed onto the third opening negative pressure adsorption component. Then the opening system stops operating (the individual packaging bag separates from the first and second opening negative pressure adsorption components 15 and 15). Finally, the two rotating arms 16 flip to a horizontal position while the front openings of the individual packaging bags are open. At this time, the bag opening system completes the action of flipping the opened packaging bag and making the bag opening face upward for receiving material, thus completing the automatic filling with the filling equipment.

[0063] 8. The present invention also provides a negative pressure vacuum system, which includes a negative pressure air pump. The first bag opening negative pressure adsorption component 15, the second bag opening negative pressure adsorption component, and the third bag opening negative pressure adsorption component are all rubber head structures and are connected to the negative pressure air pump through pipelines. After the first bag opening negative pressure adsorption component 15, the second bag opening negative pressure adsorption component, and the third bag opening negative pressure adsorption component come into contact with the individual packaging bag, they adsorb a local position of the individual packaging bag through negative pressure adsorption, and then achieve the opening or expansion of the individual packaging bag through specific actions.

[0064] 9. The present invention also includes an automatic control system, which includes a controller, sensors and timers as needed. The controller controls the above-mentioned systems to work together to complete the conveying, cutting, sewing, opening, flipping and unfolding of the packaging bag raw materials by using the sensing signals acquired by the sensors and the timing function of the timer.

[0065] As described above, the present invention provides a novel packaging bag supply device. In this invention, the novel packaging bag supply device, according to the production process sequence, includes, sequentially connected, an automatic deviation correction and unwinding system, an automatic cutting system, an automatic sewing system, a moving material receiving system, a bag opening system, and a bag opening stretching system. The automatic deviation correction and unwinding system is used to gradually unwind the packaged bag material from a roll and correct its deviation during the unwinding process. The automatic cutting system is used to cut the packaged bag material to a set length. The automatic sewing system is used to sew the tail end of the cut packaged bag material to form a packaged bag individual with an open front and a closed tail. The moving material receiving system is used to transport the packaged bag individual along a set path. The bag opening system is used to open the front end of the packaged bag individual. The bag opening stretching system is used to flip the opened packaged bag individual so that the bag opening faces upwards for receiving material.

[0066] Through the above structural design, the novel packaging bag supply device provided by this invention can sequentially perform a series of operations on packaging bag raw materials, including unwinding, flattening, conveying, dimensional cutting, bag tail sewing and sealing, opening, flipping and unfolding of individual packaging bags. This provides a highly integrated packaging supply system that combines packaging bag supply and material filling. This invention ensures the accuracy of single-bag supply, requires less floor space and area, has a relatively simple production process, and a low probability of mechanical failure. The invention has a reasonable structural design, enabling intelligent automatic control operation. It is simple to operate and reliable in use, and its application in actual production can greatly improve packaging supply efficiency.

[0067] As is known from common technical knowledge, this invention can be implemented through other embodiments that do not depart from its spirit or essential characteristics. Therefore, the disclosed embodiments described above are merely illustrative in all respects and are not the only ones. All modifications within the scope of this invention or its equivalents are included in this invention.

Claims

1. A novel packaging bag supply device, characterized in that, According to the production process sequence, it includes an automatic correction and unwinding system (a), an automatic cutting system (b), an automatic sewing system (c), a moving material receiving system (d), a bag opening system (e), and a bag opening stretching system (f) connected in sequence. The automatic unwinding and correction system is used to gradually unwind the packaged bag material and correct its deviation during the unwinding process. The automatic cutting system is used to cut the packaged bag material to a set length. The automatic sewing system is used to sew the tail of the cut packaged bag material to form a packaged bag individual with an open front and a closed tail. The moving receiving system is used to transport the packaged bag individual along a set path. The bag opening system is used to open the front of the packaged bag individual. The bag opening spreading system is used to flip the opened packaged bag individual so that the bag opening faces upward for receiving material.

2. The novel packaging bag supply device according to claim 1, characterized in that, The bag opening system is used to open the individual packaging bags in the height direction, while the bag opening spreading system is used to adsorb and fix the individual packaging bags on the left and right sides, and to make the bag opening face upwards for receiving materials by flipping.

3. The novel packaging bag supply device according to claim 1, characterized in that, The automatic correction and unwinding system includes a correction unit group, a power component, and a tensioning component; The correction unit group includes a first frame (1), on which a plurality of correction rollers (2) are provided. All the correction rollers are spaced apart. The packaging bag raw material takes an S-shaped route to bypass all the correction rollers and is corrected by the correction rollers during the conveying process. The power assembly includes a driven roller (3) and a driven roller (4). The surfaces of the driven roller and the driven roller are provided with friction layers to increase the friction after contact with the raw materials of the packaging bag. A drive motor is connected to the driven roller, and the driven roller drives the driven roller to rotate. The raw materials of the packaging bag pass between the driven roller and the driven roller and are conveyed by the power provided by the driven roller. The tensioning assembly includes a second frame (5) and a third frame (6). Multiple tension rollers (7) are provided on the second frame and the third frame. The tension rollers are spaced apart on the second frame and the third frame. The packaging bag material is conveyed by bypassing all the tension rollers in an S-shaped route. The second frame is fixedly set. One end of the third frame is hinged. The other end of the third frame is provided with an adjustable spring assembly (8). The position of the other end of the third frame is adjusted by the adjustable spring assembly, thereby adjusting the distance between the third frame and the second frame, so as to adjust the tension of the packaging bag material.

4. The novel packaging bag supply device according to claim 1, characterized in that, It also includes multiple steering rollers (9), which are arranged between the automatic correction unwinding system and the automatic cutting system for steering the conveying of packaging bag raw materials.

5. The novel packaging bag supply device according to claim 1, characterized in that, The automatic cutting system includes a cutting platform and a cutting head (10) located above the cutting platform and movable up and down. The controlled movement of the cutting head can cut packaging bag raw materials of a set length.

6. The novel packaging bag supply device according to claim 5, characterized in that, The automatic cutting system also includes a flattening component, which is located in front of the cutting head along the production process sequence, and is used to flatten the raw material of the packaging bag before cutting. The flattening assembly includes an upper flattening roller (11) and a lower flattening roller (12), the lower flattening roller being fixedly installed and the upper flattening roller having an adjustable height.

7. The novel packaging bag supply device according to claim 1, characterized in that, It also includes a transverse conveying system (13), and the automatic sewing system includes a sewing head (14) that can sew the cut packaging bag material. The automatic sewing system is set on the transverse conveying system and can move laterally through the transverse conveying system so that the moving path of the sewing head covers the packaging bag material.

8. The novel packaging bag supply device according to claim 1, characterized in that, The mobile receiving system is a belt conveyor system or a roller conveyor system, and the conveying length of the mobile receiving system is greater than the length of the individual packaging bag.

9. The novel packaging bag supply device according to claim 8, characterized in that, The bag opening system includes a first bag opening negative pressure adsorption component (15) that can be moved up and down under control and a second bag opening negative pressure adsorption component that is fixedly set. The second bag opening negative pressure adsorption component is set at the end of the mobile receiving system, and the first bag opening negative pressure adsorption component is set on the upper side of the second bag opening negative pressure adsorption component.

10. The novel packaging bag supply device according to claim 9, characterized in that, The bag opening system includes a rotating support arm (16), which can move in a controlled manner between a vertically downward state and a horizontal state. A third bag opening negative pressure adsorption component is provided on the rotating support arm. When the rotating support arm moves to the vertically downward state, it can connect and cooperate with the bag opening system to adsorb the two sides after the individual opening of the packaging bag under negative pressure. After the bag opening system is released, it flips and moves to the horizontal state so that the bag opening faces upward for receiving materials.

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