Packing machine for ton bag production

Abstract

The packaging machine for ton bag production comprises a complete machine frame, a U-shaped beam frame is installed at one end of the interior of the complete machine frame in a sliding and lifting mode, and negative pressure type pneumatic bag separating assemblies used for opening the opening of a ton bag outwards are installed on the left inner wall and the right inner wall of the U-shaped beam frame correspondingly. A belt wheel type stepping lifting assembly used for driving the U-shaped beam frame to move upwards is installed on the inner wall of one side of the complete machine frame, and a driven opposite bag folding assembly used for synchronously operating when the belt wheel type stepping lifting assembly works is arranged at the bottom of the complete machine frame. According to the ton bag folding machine, an efficient and automatic ton bag folding working process is formed by combining a negative pressure type pneumatic bag separating assembly, a belt wheel type stepping lifting assembly, a driven opposite bag folding assembly, a compressible bag folding arm, a bag pressing assembly and other structures which are matched with one another.

Description

Technical Field

[0001] The present invention relates to the technical field of bulk bag processing, and specifically to a packing machine for bulk bag production. Background Art

[0002] The main function of the packing machine in the production process of bulk bags is to efficiently and accurately load materials into the bulk bags and ensure the sealing and stability of the bags to ensure that the materials are not lost during transportation and storage; the packing machine usually includes key components such as a hopper, a conveying system, a weighing system, a bagging opening, a sealing device, and a control system. The hopper is used to store materials, the conveying system is responsible for transporting the materials to the bagging opening, the weighing system monitors the weight of the materials in real time, the bagging opening is responsible for evenly filling the materials, the sealing device ensures the sealing of the bag mouth, and the control system coordinates and manages the entire operation process, reducing manual intervention and improving the automation level. The working principle is based on gravity and mechanical transmission, and through the cooperation of the hopper, the conveying system, the weighing device, and the sealing device, the efficient and precise filling and closing of the materials are completed; As disclosed in a packing machine for bulk bag production with the authorization announcement number CN220563090U, it includes: a base plate, two fixed plates fixedly installed on the top of the base plate, the two fixed plates are arranged opposite to each other, a vertical lifting mechanism is arranged on one side of each of the two fixed plates, a left-right moving mechanism is arranged on one side of the vertical lifting mechanism, and a bag supporting mechanism is arranged on one side of the left-right moving mechanism. Starting the second motor drives the second screw to rotate inside the first chute plate, and the first chute plate is linked to slide inside the first chute plate, which is used to move the opened bulk bag under the feeding funnel for bagging, effectively transporting and moving the bulk bag into the sewing machine body for sewing, so as to achieve the purpose of packing; However, the above technical solution is mainly applied to the removal, sealing, and packing operations of bulk bags after being filled with materials. For large-sized bulk bags after processing, they are large in volume and relatively high in height. It is relatively difficult for workers to fold, organize, and stack them for packing. The reason is that the bulk bags are made of high-strength plastic or woven materials, and the height of the bulk bags often exceeds the visual range of ordinary people, resulting in difficulty in mastering the folding angle and position during the operation. Therefore, the folding and stacking of bulk bags need to be completed by the cooperation of multiple workers. At this time, the folding and stacking process takes a long time. Especially when a large number of bulk bags need to be processed, the workload of the operators is greatly increased, which is likely to cause work delays. Summary of the Invention

[0003] The purpose of the present invention is to provide a packing machine for the production of ton bags. The negative pressure pneumatic bag separating assembly is used to open the bag mouth of the ton bag to be sorted and folded. After the bag mouth is opened, the belt-wheel type stepping lifting assembly moves the U-shaped beam frame and the negative pressure pneumatic bag separating assembly upward until the ton bag is fully expanded. While the belt-wheel type stepping lifting assembly is working, the driven type opposite folding bag assembly makes two compressible folding bag arms approach each other until the ton bag is folded from the waist and creases are formed. Subsequently, the negative pressure pneumatic bag separating assembly releases the bag mouth, and the bag pressing assembly forces the ton bag to move downward and collapse until the ton bag is neatly folded, so as to solve the problems raised in the above-mentioned background technology.

[0004] To achieve the above purpose, the present invention provides the following technical solutions: A packing machine for the production of ton bags includes an integral frame. One end inside the integral frame is slidably and liftably installed with a U-shaped beam frame, and negative pressure pneumatic bag separating assemblies for outwardly opening the bag mouth of the ton bag are installed on the left and right inner walls of the U-shaped beam frame. A belt-wheel type stepping lifting assembly for driving the U-shaped beam frame to move upward is installed on the inner wall of one side of the integral frame. A driven type opposite folding bag assembly for synchronously operating when the belt-wheel type stepping lifting assembly is working is arranged at the bottom of the integral frame. Compressible folding bag arms are installed on both mobile ends of the driven type opposite folding bag assembly, and the two compressible folding bag arms are driven by the driven type opposite folding bag assembly to move towards each other and form creases at the waist of the ton bag. An L-shaped back frame is fixed on the inner wall of the integral frame between the two negative pressure pneumatic bag separating assemblies. A bag pressing assembly for downwardly pressing the compressible folding bag arm is installed on the surface of the L-shaped back frame. A PLC control panel is installed on one side of the surface of the integral frame. The output end of the PLC control panel is electrically connected to the input ends of the negative pressure pneumatic bag separating assembly, the belt-wheel type stepping lifting assembly, and the bag pressing assembly respectively.

[0005] Preferably, two symmetrical convex feet are integrally formed on the outer wall of the U-shaped beam frame close to the belt-wheel type stepping lifting assembly. The outer wall of one side of the convex feet and the outer wall of the integral frame are slidably matched through a track and a sliding seat with rollers, and a back beam is fixed between the two convex feet in the same X-axis direction.

[0006] Preferably, the negative pressure pneumatic bag separating assembly includes an X-axis cylinder on the outer wall of one side of the U-shaped beam frame, a connecting plate installed at the top end of the piston rod of the X-axis cylinder, and extension arms fixed at both ends inside the connecting plate. Support seats are fixed at one ends of the two extension arms close to the vertical central reference plane of the integral frame.

[0007] Preferably, a main negative pressure pipe is installed on the outer wall of the support seat away from the extension arm, and a number of suction cups are installed at equal intervals on the outer wall of the main negative pressure pipe.

[0008] Preferably, the pulley type step-lifting assembly includes a driving pulley, a driven pulley rotatably mounted on one side of the back of the whole machine frame through a shaft seat, and a multi-wedge belt wound between the driving pulley and the driven pulley. One end of the surface of the multi-wedge belt is fixed with a clamping plate for connecting with the back beam. A stepping motor for driving the driving pulley to rotate is installed on the inner wall of one side of the whole machine frame. The input end of the stepping motor is electrically connected to the output end of the PLC control panel. The multi-wedge belt drives the back beam, the U-shaped beam frame, and the negative pressure pneumatic bag splitting assembly to perform Z-axis sliding through the clamping plate.

[0009] Preferably, the driven type opposite folding bag assembly includes a Y-direction driven shaft rotatably mounted on one side of the bottom of the whole machine frame through a bearing seat, two mirror-symmetrical sliding plates slidably mounted on the inner wall of one side of the whole machine frame, and a gear-rack opposite traction structure arranged at one end of the Y-direction driven shaft for driving the two sliding plates to move towards each other. On the other side of the bottom of the whole machine frame, a Y-direction transmission shaft is rotatably mounted through a bearing seat. A pulley transmission structure for power connection is installed between the Y-direction transmission shaft and the Y-direction driven shaft. One end of the Y-direction transmission shaft extends into the inside of the driven pulley and is fixedly connected to the driven pulley.

[0010] Preferably, the gear-rack opposite traction structure includes inclined racks fixed on the outer walls of the same side of the two sliding plates and an inclined gear installed at one end of the Y-direction driven shaft. The two inclined racks are respectively located on the upper and lower sides of the central axis of the inclined gear, and the inclined gear meshes with the two inclined racks.

[0011] Preferably, one end of the surface of the sliding plate is fixed with a support platform for connecting with the compressible bag folding arm.

[0012] Preferably, the compressible bag folding arm includes a bracket fixed on the outer wall of one side of the support platform, two steel columns installed at the top of the bracket, and a trapezoidal plate slidably mounted on the surface of one end of the steel column. A return spring is wound on the surface of the steel column below the trapezoidal plate.

[0013] Preferably, the bag pressing assembly is composed of a linear pneumatic module, a right-angle frame, and a Y-direction pressing arm. The linear pneumatic module is installed on the surface of the L-shaped back frame. The right-angle frame is installed on the moving end of the linear pneumatic module. There are two Y-direction pressing arms. The two Y-direction pressing arms are fixed on both sides of the surface of the right-angle frame. The Y-direction pressing arm is located above the trapezoidal plate.

[0014] Compared with the prior art, the beneficial effects of the present invention are as follows: The packing machine for producing ton bags combines structures such as a negative-pressure pneumatic bag separating assembly, a belt-wheel type stepping lifting assembly, a driven type opposite-direction bag folding assembly, a compressible bag folding arm, and a bag pressing assembly, etc., which cooperate with each other to form an efficient and automated working process for folding ton bags. Among them, through the negative-pressure pneumatic bag separating assembly, the bag mouth can be accurately unfolded at the initial stage, making the folding process of the ton bag highly accurate from the very beginning. Next, the belt-wheel type stepping lifting assembly can precisely control the height of the ton bag, ensuring that the bag maintains an appropriate height throughout the folding process and avoiding uneven folding caused by inconsistent heights. While the belt-wheel type stepping lifting assembly is working, the driven type opposite-direction bag folding assembly enables the two compressible bag folding arms to be automatically adjusted to ensure uniform distribution of the folding pressure on both sides, forming neat creases, further improving the folding accuracy and consistency. This not only reduces manual operation errors but also greatly improves the folding quality, ensuring that the folding effect of each ton bag meets the standard. Secondly, the automatic cooperation of components such as the negative-pressure pneumatic bag separating assembly, the belt-wheel type stepping lifting assembly, and the bag folding arm can realize the automatic sorting of ton bags in a relatively small space, greatly improving the folding speed of ton bags, reducing the dependence on manual operation, enabling operators not to spend a large amount of time and energy on processing each ton bag, significantly enhancing the overall work efficiency, and thus being able to meet the folding and sorting requirements of a large number of ton bags. Especially in large-scale production and warehousing environments, the automated processing method effectively reduces labor costs and time costs. Finally, the automated folding and sorting technology can ensure that each ton bag is processed according to a unified standard, making each bag visually more neat and consistent, and avoiding the operation difficulties and space waste problems caused by insufficient space in the traditional method. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 is the front view structural schematic diagram of the present invention; Figure 2 is the three-dimensional structural schematic Figure 1 ; Figure 3 is the three-dimensional structural schematic Figure 2 ; Figure 4 is the three-dimensional structural schematic Figure 3 ; Figure 5 is the three-dimensional structural schematic diagram of the belt-wheel type stepping lifting assembly of the second embodiment of the present invention; Figure 6 is the three-dimensional structural schematic diagram of the driven type opposite-direction bag folding assembly of the third embodiment of the present invention; Figure 7 is the three-dimensional structural schematic diagram of the fourth embodiment of the present invention; Figure 8 Schematic diagram of the overall structure of the bag pressing assembly according to the fourth embodiment of the present invention.

[0016] In the figure: 1, the whole machine frame; 101, L-shaped back frame; 2, U-shaped beam frame; 201, convex foot; 3, negative pressure pneumatic bag splitting assembly; 301, X-axis cylinder; 302, connecting plate; 303, extension arm; 304, support seat; 305, main negative pressure pipe; 306, suction cup; 4, pulley type stepping lifting assembly; 401, stepping motor; 402, driving pulley; 403, Y-direction drive shaft; 404, driven pulley; 405, multi-wedge belt; 406, clamping plate; 407, back beam; 5, driven type opposite folding bag assembly; 501, Y-direction driven shaft; 502, belt drive structure; 503, sliding plate; 504, gear rack opposite traction structure; 505, support table; 6, compressible folding bag arm; 601, bracket; 602, steel column; 603, trapezoidal plate; 604, return spring; 7, bag pressing assembly; 701, linear pneumatic module; 702, right-angle frame; 703, Y-direction pressing arm; 8, PLC control panel. Detailed implementation manners

[0017] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0018] Embodiment 1, given by Figures 1 to 4 The present invention includes a whole machine frame 1. One end inside the whole machine frame 1 is slidably and liftably installed with a U-shaped beam frame 2. Negative pressure pneumatic bag splitting assemblies 3 for expanding the mouth of the ton bag outwards are installed on the left and right inner walls of the U-shaped beam frame 2. A pulley type stepping lifting assembly 4 for driving the U-shaped beam frame 2 to move upwards is installed on the inner wall of one side of the whole machine frame 1. A driven type opposite folding bag assembly 5 for running synchronously when the pulley type stepping lifting assembly 4 works is arranged at the bottom of the whole machine frame 1. Compressible folding bag arms 6 are installed at both mobile ends of the driven type opposite folding bag assembly 5. The two compressible folding bag arms 6 are driven by the driven type opposite folding bag assembly 5 to move towards each other and form a crease at the waist of the ton bag; An L-shaped back frame 101 is fixed on the inner wall of the whole machine frame 1 between the two negative pressure pneumatic bag splitting assemblies 3. A bag pressing assembly 7 for pressing the compressible folding bag arm 6 downwards is installed on the surface of the L-shaped back frame 101. A PLC control panel 8 is installed on one side of the surface of the whole machine frame 1. The output end of the PLC control panel 8 is electrically connected to the input ends of the negative pressure pneumatic bag splitting assembly 3, the pulley type stepping lifting assembly 4, and the bag pressing assembly 7 respectively; Embodiment 2, on the basis of Embodiment 1, given by Figure 5Given that, on one side outer wall of the U-shaped beam frame 2 close to the pulley type step-lifting assembly 4, two symmetric convex feet 201 are integrally formed. The outer wall between one side of the convex feet 201 and the outer wall of the whole machine frame 1 is in sliding fit through a track and a sliding seat with rollers. A back beam 407 is fixed between the two convex feet 201 in the same X-axis direction. The negative pressure pneumatic bag splitting assembly 3 includes an X-axis cylinder 301 on one side outer wall of the U-shaped beam frame 2, a connecting plate 302 installed at the top end of the piston rod of the X-axis cylinder 301, and extension arms 303 fixed at both ends inside the connecting plate 302. At one end of the two extension arms 303 close to the vertical central reference plane of the whole machine frame 1, a support seat 304 is fixed; On the outer wall of the support seat 304 away from the extension arm 303, a main negative pressure pipe 305 is installed, and a number of equally spaced suction cups 306 are installed on one side outer wall of the main negative pressure pipe 305. The staff places the ton bag to be folded and packed between the two compressible bag folding arms 6. Then, the staff starts the negative pressure pneumatic bag splitting assembly 3 to work through the PLC control panel 8. Then the main negative pressure pipe 305 is evacuated by an external vacuum pump to form a negative pressure, so that a number of suction cups 306 form a negative pressure suction force, which helps to effectively open the bag mouth of the ton bag and avoid bag body damage caused by over-suction; After the suction cup 306 adsorbs the main bag mouth, the staff starts the X-axis cylinder 301 to work through the PLC control panel 8. The X-axis cylinder 301 drives the connecting plate 302, the extension arm 303, the support seat 304, the main negative pressure pipe 305 and the suction cup 306 to gradually move away from the vertical central reference plane of the whole machine frame 1 until the bag mouth of the ton bag is opened by the two negative pressure pneumatic bag splitting assemblies 3. In this way, the bag mouth can be quickly and effectively opened, saving the time of manual operation and improving work efficiency. At the same time, the negative pressure pneumatic bag splitting assembly 3 can adapt to ton bags of different materials and specifications, with high flexibility and suitable for various production environments; The pulley-type stepping lifting assembly 4 includes a driving pulley 402 rotatably mounted on one side of the back of the whole machine frame 1 through a shaft seat, a driven pulley 404, and a multi-wedge belt 405 wound between the driving pulley 402 and the driven pulley 404. One end of the surface of the multi-wedge belt 405 is fixed with a clamping plate 406 for connecting with the back beam 407. A stepping motor 401 for driving the driving pulley 402 to rotate is installed on the inner wall of one side of the whole machine frame 1. The input end of the stepping motor 401 is electrically connected to the output end of the PLC control panel 8. The multi-wedge belt 405 drives the back beam 407, the U-shaped beam frame 2, and the negative-pressure pneumatic bag splitting assembly 3 to perform Z-axis sliding through the clamping plate 406. After the opening of the ton bag is expanded, the staff starts the stepping motor 401 to work through the PLC control panel 8. Then the stepping motor 401 drives the driving pulley 402 to rotate. At this time, the multi-wedge belt 405 drives the back beam 407, the U-shaped beam frame 2, and the negative-pressure pneumatic bag splitting assembly 3 to move upward along the Z-axis until the ton bag expands upward until it is completely unfolded. The pulley-type stepping lifting assembly 4 realizes precise height adjustment, ensures that the ton bag is folded at the optimal height, and avoids poor folding caused by improper height. Moreover, the settings of the back beam 407, the track, the sliding seat, and the convex foot part 201 on the outer wall of the whole machine frame 1 ensure that the negative-pressure pneumatic bag splitting assembly 3 and the ton bag will not shake or tilt during the lifting process, guaranteeing the safety of the operation.

[0019] Embodiment 3, on the basis of Embodiment 2, is given by Figure 6 The driven-type opposite-direction bag folding assembly 5 includes a Y-direction driven shaft 501 rotatably mounted on one side of the bottom of the whole machine frame 1 through a bearing seat, two mirror-symmetrical slide plates 503 slidably mounted on the inner wall of one side of the whole machine frame 1, and a gear-rack opposite-direction traction structure 504 provided at one end of the Y-direction driven shaft 501 for driving the two slide plates 503 to move towards each other. On the other side of the bottom of the whole machine frame 1, a Y-direction transmission shaft 403 is rotatably mounted through a bearing seat. A belt drive structure 502 for power connection is installed between the Y-direction transmission shaft 403 and the Y-direction driven shaft 501. One end of the Y-direction transmission shaft 403 extends into the inside of the driven pulley 404 and is fixedly connected to the driven pulley 404. The gear-rack opposite-direction traction structure 504 includes an inclined rack fixed on the outer walls of the same side of the two slide plates 503 and an inclined gear installed at one end of the Y-direction driven shaft 501. The two inclined racks are respectively located on the upper and lower sides of the central axis of the inclined gear, and the inclined gear meshes with the two inclined racks; One end of the surface of the skateboard 503 is fixed with a support platform 505 for connecting with the compressible folding bag arm 6. During the operation of the belt-wheel type stepping lifting assembly 4, the driving belt wheel 402 will drive the driven belt wheel 404 and the Y-direction transmission shaft 403 to rotate through the multi-wedge belt 405. The Y-direction transmission shaft 403 drives the Y-direction driven shaft 501 to rotate through the belt transmission structure 502. The rotational movement of the Y-direction driven shaft 501 is converted into the linear opposite sliding movement of the two skateboards 503 through the gear-rack opposite traction structure 504. The cooperation of the skateboard 503 and the gear-rack opposite traction structure 504 makes the two compressible folding bag arms 6 approach each other; The compressible folding bag arm 6 includes a bracket 601 fixed on the outer wall of one side of the support platform 505, two steel columns 602 installed at the top of the bracket 601, and a trapezoidal plate 603 slidably installed at one end of the surface of the steel column 602. When the compressible folding bag arm 6 approaches the ton bag, the trapezoidal plate 603 is used to fold the ton bag inward. A return spring 604 is wound around the surface of the steel column 602 below the trapezoidal plate 603. During the process of the two compressible folding bag arms 6 approaching each other, the compressible folding bag arm 6 will form an indentation on one side of the ton bag and force the ton bag to fold inward, so that both sides of the ton bag are evenly folded, ensuring that the folding effect is neat and beautiful and meets the standards.

[0020] Example 4, on the basis of Example 3, is given by Figure 7 and Figure 8 The bag pressing assembly 7 consists of a linear pneumatic module 701, a right-angle frame 702, and a Y-direction pressing arm 703. The linear pneumatic module 701 is installed on the surface of the L-shaped back frame 101. The right-angle frame 702 is installed on the moving end of the linear pneumatic module 701. There are two Y-direction pressing arms 703, and the two Y-direction pressing arms 703 are fixed on both sides of the surface of the right-angle frame 702. The Y-direction pressing arm 703 is located above the trapezoidal plate 603. After the compressible folding bag arm 6 forms an indentation at the waist of the ton bag, the staff starts the bag pressing assembly 7 to work through the PLC control panel 8. The linear pneumatic module 701 drives the right-angle frame 702 and the Y-direction pressing arm 703 to move downward, so that the Y-direction pressing arm 703 contacts the bag mouth of the ton bag until the ton bag is compressed downward. At this time, the Y-direction pressing arm 703 will contact the upper surface of the trapezoidal plate 603, and the trapezoidal plate 603 slides along the vertical direction of the steel column 602 under the pressure of the Y-direction pressing arm 703, and then the return spring 604 is compressed until the trapezoidal plate 603 moves downward to the limit position. By applying appropriate pressure, it is ensured that the ton bag can maintain a neat shape after folding and meets the requirements of subsequent transportation and storage; after the ton bag is completed with pressing and folding, the staff can pull out the ton bag from between the two trapezoidal plates 603.

[0021] When the embodiment of the present application is in use, first, check the settings of the PLC control panel 8 to confirm that the device has been correctly started and is in a standby state. Secondly, check whether the U-shaped beam frame 2 is stable to ensure that there is no abnormality in the connection of the negative-pressure pneumatic bag splitting assembly 3, the pulley-type stepping lifting assembly 4, and the driven-type opposite-direction bag folding assembly 5. Finally, confirm whether the placement position of the ton bag is correct to ensure that it can be smoothly located in the folding area between the two compressible bag folding arms 6; the staff places the ton bag to be folded and sorted between the two compressible bag folding arms 6, and starts the two negative-pressure pneumatic bag splitting assemblies 3 to work through the PLC control panel 8. The two negative-pressure pneumatic bag splitting assemblies 3 quickly expand the bag mouth of the ton bag to both sides by the negative-pressure principle. At this time, the staff needs to observe the unfolding situation of the bag mouth to ensure that the bag mouth is fully opened for subsequent folding operations. After the bag mouth of the ton bag is fully expanded, the staff operates the pulley-type stepping lifting assembly 4 through the PLC control panel 8, and the pulley-type stepping lifting assembly 4 drives the U-shaped beam frame 2 and the negative-pressure pneumatic bag splitting assembly 3 to move upward to adjust the height of the ton bag until the ton bag is lifted to the optimal folding height and is in a fully expanded state, so as to facilitate subsequent folding work; during the process of the pulley-type stepping lifting assembly 4 expanding and unfolding the ton bag upward, the driven-type opposite-direction bag folding assembly 5 synchronously receives the rotary power from the pulley-type stepping lifting assembly 4 and makes the two compressible bag folding arms 6 approach each other, gradually folding the two sides of the ton bag towards the middle. During this process, the operator needs to closely monitor the movement of the two compressible bag folding arms 6 to ensure that the folding process is smooth and unobstructed. As the two compressible bag folding arms 6 approach each other, the waist of the ton bag begins to be folded and a crease is formed; after the crease of the ton bag is successfully formed, the staff will instruct the pulley-type stepping lifting assembly 4 to stop working and the negative-pressure pneumatic bag splitting assembly 3 to actively release the bag mouth through the PLC control panel 8. At this time, the bag mouth will return to the state of not being expanded, preparing for the subsequent bag pressing operation; after the bag mouth of the ton bag is released, the bag pressing assembly 7 applies appropriate pressure to the ton bag to make it move downward and further fold neatly. At this time, the operator needs to pay attention to observing the bag pressing process to ensure that the ton bag will not be deformed or damaged under the pressure. During the bag pressing operation, the compressible bag folding arms 6 will be gradually compressed downward until they reach the limit state until the ton bag is folded; after the ton bag is folded, the staff will take out the ton bag from between the two compressible bag folding arms in the compressed state and check whether the folded ton bag meets the standards, ensuring that each ton bag is neatly folded, without damage, and meets the requirements of subsequent transportation and storage. If unqualified bags are found, the staff should adjust or refold them in time; after all the ton bags are folded, the staff needs to clean and maintain the equipment, check the working status of each component, clean the working area, and ensure that the equipment is in good condition before the next use.

[0022] It should be noted that, in this text, relational terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the term "comprising", "including" or any other variant thereof is intended to cover non-exclusive inclusion, such that a process, method, article or device comprising a series of elements not only includes those elements but also includes other elements not expressly listed, or further includes elements inherent to such process, method, article or device.

[0023] Although the embodiments of the present invention have been shown and described, those of ordinary skill in the art can understand that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A baling machine for producing bulk bags, characterized in that, Including: An integral frame (1), at one end inside the integral frame (1), a U-shaped beam frame (2) is slidably and vertically installed. On the left and right inner walls of the U-shaped beam frame (2), a negative-pressure pneumatic bag separating assembly (3) for expanding the opening of the ton bag outward is installed. On the inner wall of one side of the integral frame (1), a pulley-type step-by-step lifting assembly (4) for driving the U-shaped beam frame (2) to move upward is installed. At the bottom of the integral frame (1), a driven type opposite-direction bag folding assembly (5) for synchronously operating when the pulley-type step-by-step lifting assembly (4) works is provided. Compressible bag folding arms (6) are installed at both mobile ends of the driven type opposite-direction bag folding assembly (5). The two compressible bag folding arms (6) are driven by the driven type opposite-direction bag folding assembly (5) to move towards each other and form a crease at the waist of the ton bag; An L-shaped back frame (101), the L-shaped back frame (101) is fixed on the inner wall of the integral frame (1) between the two negative-pressure pneumatic bag separating assemblies (3). On the surface of the L-shaped back frame (101), a bag pressing assembly (7) for pressing the compressible bag folding arm (6) downward is installed. On one side of the surface of the integral frame (1), a PLC control panel (8) is installed. The output ends of the PLC control panel (8) are electrically connected to the input ends of the negative-pressure pneumatic bag separating assembly (3), the pulley-type step-by-step lifting assembly (4), and the bag pressing assembly (7).

2. The baling machine for producing bulk bags according to claim 1, characterized in that: On the outer wall of one side of the U-shaped beam frame (2) close to the pulley-type step-by-step lifting assembly (4), two symmetrical convex feet parts (201) are integrally formed. Between the outer wall of one side of the convex feet part (201) and the outer wall of the integral frame (1), they are slidably matched through a track and a sliding seat with rollers. A back beam (407) is fixed between the two convex feet parts (201) in the same X-axis direction.

3. The baling machine for producing ton bags according to claim 2, characterized in that: The negative-pressure pneumatic bag separating assembly (3) includes an X-axis cylinder (301) on the outer wall of one side of the U-shaped beam frame (2), a connecting plate (302) installed at the top end of the piston rod of the X-axis cylinder (301), and extension arms (303) fixed at both ends inside the connecting plate (302). At one end of the two extension arms (303) close to the vertical central reference plane of the integral frame (1), a support seat (304) is fixed.

4. The baling machine for producing ton bags according to claim 3, wherein: On the outer wall of the support seat (304) away from the extension arm (303), a main negative-pressure pipe (305) is installed. On the outer wall of one side of the main negative-pressure pipe (305), a number of equally spaced suction cups (306) are installed.

5. The baling machine for producing ton bags according to claim 3, wherein: The pulley-type stepping lifting assembly (4) includes a driving pulley (402), a driven pulley (404) rotatably mounted on one side of the back of the whole machine frame (1) through a shaft seat, and a multi-wedge belt (405) wound between the driving pulley (402) and the driven pulley (404). One end of the surface of the multi-wedge belt (405) is fixed with a clamping plate (406) for connecting with the back beam (407). A stepping motor (401) for driving the driving pulley (402) to rotate is mounted on the inner wall of one side of the whole machine frame (1). The input end of the stepping motor (401) is electrically connected to the output end of the PLC control panel (8). The multi-wedge belt (405) drives the back beam (407), the U-shaped beam frame (2), and the negative-pressure pneumatic bag splitting assembly (3) to perform Z-axis sliding through the clamping plate (406).

6. The baling machine for producing ton bags according to claim 5, characterized in that: The driven type opposite-direction bag folding assembly (5) includes a Y-direction driven shaft (501) rotatably mounted on one side of the bottom of the whole machine frame (1) through a bearing seat, two mirror-symmetrical sliding plates (503) slidably mounted on the inner wall of one side of the whole machine frame (1), and a gear-rack opposite-direction traction structure (504) provided at one end of the Y-direction driven shaft (501) for driving the two sliding plates (503) to move towards each other. A Y-direction transmission shaft (403) is rotatably mounted on the other side of the bottom of the whole machine frame (1) through a bearing seat. A belt pulley transmission structure (502) for power connection is installed between the Y-direction transmission shaft (403) and the Y-direction driven shaft (501). One end of the Y-direction transmission shaft (403) extends into the driven pulley (404) and is fixedly connected to the driven pulley (404).

7. The baling machine for producing ton bags according to claim 6, characterized in that: The gear-rack opposite-direction traction structure (504) includes inclined racks fixed on the outer walls of the same side of the two sliding plates (503) and an inclined gear installed at one end of the Y-direction driven shaft (501). The two inclined racks are respectively located above and below the central axis of the inclined gear, and the inclined gear meshes with the two inclined racks.

8. A baling machine for producing bulk bags according to claim 6, characterized in that: One end of the surface of the sliding plate (503) is fixed with a support table (505) for connecting with the compressible bag folding arm (6).

9. A baling machine for producing bulk bags according to claim 8, characterized in that: The compressible bag folding arm (6) includes a bracket (601) fixed on the outer wall of one side of the support table (505), two steel columns (602) installed at the top of the bracket (601), and a trapezoidal plate (603) slidably mounted on the surface of one end of the steel columns (602). A return spring (604) is wound on the surface of the steel columns (602) below the trapezoidal plate (603).

10. A baling machine for producing ton bags according to claim 9, characterized in that: The bag pressing assembly (7) is composed of a linear pneumatic module (701), a right-angle frame (702), and a Y-direction pressing arm (703). The linear pneumatic module (701) is installed on the surface of the L-shaped back frame (101). The right-angle frame (702) is installed on the moving end of the linear pneumatic module (701). There are two Y-direction pressing arms (703). The two Y-direction pressing arms (703) are fixed on both sides of the surface of the right-angle frame (702). The Y-direction pressing arm (703) is located above the trapezoidal plate (603).

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