A vertical bag loading device for valve bags

Abstract

The present invention provides a device for vertically loading valve bags, which relates to the technical field of loading valve bags. The device comprises a support frame, on which a lifting assembly is provided, on which a driving assembly is provided on the moving part of the lifting assembly, a stabilizing assembly, which is provided on the moving part of the driving assembly; a suction cup group, which is provided at the lower part of the stabilizing assembly and is used for negative pressure adsorption of the valve bag; an opening assembly, which is provided at one end of the stabilizing assembly close to the valve port of the valve bag, and comprises a telescopic part and an arc frame, on which a support arm and a driving arm are provided, and a mounting block is fixedly connected to the end of the arc frame away from the driving arm. By providing the opening assembly, the valve port can be opened during the vertical ascent of the valve bag, thereby facilitating the subsequent insertion of the valve bag. The overall structure is compact, time-consuming, and the efficiency of the filling operation is improved.

Description

Technical Field

[0001] The invention relates to the technical field of valve bag loading, in particular to a valve bag vertical loading device. Background Art

[0002] Valve bags are square-bottomed packaging containers made of multi-layer paper or woven plastic. They are sealed using heat-sealing welding technology. Their structural features allow for top-valve feeding and automatic sealing. They are primarily used for packaging powdery and granular materials such as building materials (cement, mortar, gypsum), chemical raw materials, and food additives. They offer advantages such as neat stacking, breathability, moisture resistance, and environmental friendliness and recyclability. When filling a valve bag, the bag must be vertically raised to the bag feeder, requiring the use of a valve bag loading device.

[0003] In the related technology, such as the announcement number: CN114715502A, a bag opening machine includes a bracket; the bag opening machine includes a lifting module, a bag suction assembly, a bag clamping finger assembly, and a bag insertion and opening assembly; wherein, the lifting module is vertically arranged and fixedly installed on the bracket, and the bag suction assembly is slidably installed on the lifting module; the bag clamping finger assembly is fixedly installed on the bracket; the bag insertion and opening assembly is located above the bag clamping finger assembly and fixedly installed on the bracket; in the process of automatic bag loading, the bag suction assembly lifts the valve bag to the bag opening position, the bag clamping fingers clamp the lower part of the valve bag, cooperate with the bag suction assembly to open the valve mouth, and the bag insertion and opening assembly props up the valve mouth.

[0004] The commonly used vertical valve bag loading device usually only has the function of conveying valve bags. It requires a clamp to clamp the valve bag body, and then use the upward movement of the suction nozzle to cooperate with each other to realize the function of opening the valve mouth of the valve bag. It takes up a large overall space and takes a long time to open, which is not conducive to improving the efficiency of the filling operation. Summary of the Invention

[0005] In view of the shortcomings of the existing technology, the present invention provides a vertical bag loading device for valve bags, which solves the problems that the existing bag loading device only has the function of moving the valve bags upward, occupies a large overall space, and takes a long time to open.

[0006] To achieve the above objectives, the present invention is implemented through the following technical solutions: A valve bag vertical bag loading device includes a support frame, a lifting assembly is provided on the support frame, and a driving assembly is provided on the moving part of the lifting assembly, and further includes:

[0007] a stabilizing assembly, the stabilizing assembly being disposed on a moving component of the driving assembly;

[0008] A suction cup assembly, which is provided at the lower part of the stabilizing assembly and is used for negative pressure adsorption of the valve pocket;

[0009] The opening assembly is located at one end of the stabilizing assembly near the valve opening of the valve bag. The opening assembly includes a telescopic component and an arc-shaped frame. The arc-shaped frame is provided with a support arm and a driving arm. The end of the arc-shaped frame away from the driving arm is fixedly connected to a mounting block. The side of the mounting block is fixedly connected to a blocking claw. The arc-shaped frame can be driven by the telescopic component to rotate around the support arm. An air supply member is installed on the outside of the mounting block, and an opening member is installed on the inside of the mounting block. The opening member opens in response to the airflow introduced by the air supply member. By providing the opening assembly, the valve opening can be opened during the vertical ascent of the valve bag, thereby facilitating the subsequent insertion of the valve bag. The overall structure is compact, time-saving, and improves the efficiency of the filling operation.

[0010] Preferably, the lifting assembly includes a lifting frame fixedly mounted on a support frame, a lifting motor fixedly mounted on the lifting frame, a driving wheel rotatably connected to the inner side of the lifting frame, an output end of the lifting motor fixedly connected to one of its driving wheels, a lifting belt is provided between the two driving wheels, a lifting seat is fixedly connected to the lifting belt, a guide groove is provided on the lifting frame, and the lifting seat slides in cooperation with the guide groove.

[0011] Preferably, the driving assembly includes a driving frame fixedly mounted on the lifting seat, a driving motor fixedly mounted on the driving frame, a driving wheel rotatably connected to the inner side of the driving frame, the driving motor fixedly connected to one of its driving wheels, a driving belt is provided between the two driving wheels, a driving seat is fixedly connected to the driving belt, a driving groove is provided on the driving frame, and the driving seat is slidably engaged with the driving groove.

[0012] Preferably, the telescopic component includes a mounting seat and a support seat fixedly mounted on the stabilizing assembly, the mounting seat is rotatably connected to a telescopic device, the telescopic end of the telescopic device is fixedly connected to a connecting seat, the support seat is rotatably engaged with the support arm, and the connecting seat is rotatably engaged with the driving arm.

[0013] Preferably, the air supply component includes an insertion tube fixedly mounted on the mounting block, the inner end of the insertion tube is fixedly connected to the air outlet pipe, the outer end of the insertion tube is fixedly mounted with an air intake valve, the air intake valve is fixedly connected to the air intake pipe, and the air intake pipe is connected to an external air source.

[0014] Preferably, the opening member includes a slide rail fixedly mounted on a side of the mounting block close to the valve pocket, a slider is slidably connected to the slide rail, a return spring is fixedly connected between the slider and the mounting block, an opening claw is fixedly connected to the slider, an adaption groove is provided at one end of the opening claw close to the slider, the adaption groove is adapted to the insertion tube, an air inlet is provided in the adaption groove, a cavity is provided in the opening claw, an air outlet is provided on the outer wall of the opening claw, and a baffle is rotatably connected to one end of the opening claw close to the slider through a rotating part, and the baffle is tightly attached to the opening claw in an unstressed state, and the baffle covers and blocks the air outlet.

[0015] Preferably, there are two opening claws, the overall shape of the two opening claws is conical, and the longitudinal cross-section of the blocking piece is circular.

[0016] Preferably, the stabilizing assembly includes a stabilizing frame, an extension plate is fixedly connected to the stabilizing frame, one end of the extension plate away from the stabilizing frame is fixedly connected to a limit block, and the limit block contacts the arc frame at the extreme position.

[0017] The present invention provides a vertical bag loading device for valve bags, which has the following beneficial effects:

[0018] The present invention provides an opening component, which can open the valve port during the vertical rise of the valve bag, thereby facilitating the subsequent insertion of the valve bag. The overall structure is compact, the time consumption is short, and the efficiency of the filling operation is improved.

[0019] The present invention provides vertical motion power through the provision of a lifting assembly and a driving assembly, and can also reserve space for a trolley for delivering the valve bag, thereby facilitating the delivery of the trolley. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is an overall three-dimensional diagram of the present invention;

[0021] Figure 2 It is an overall three-dimensional diagram from another perspective of the present invention;

[0022] Figure 3 is a perspective view of the lifting assembly of the present invention;

[0023] Figure 4 is a perspective view of a drive assembly of the present invention;

[0024] Figure 5 is a perspective view of a stabilizing assembly of the present invention;

[0025] Figure 6 is a perspective view of the opening assembly of the present invention;

[0026] Figure 7 A perspective view of an opening assembly from another perspective of the present invention;

[0027] Figure 8 A three-dimensional diagram of the opening member of the present invention;

[0028] Figure 9 A partial perspective view of the opening assembly of the present invention;

[0029] Figure 10 A perspective view of an opening member of the present invention;

[0030] Figure 11 A three-dimensional diagram of the slider, opening claw, and baffle of the present invention;

[0031] Figure 12 A sectional perspective view of the opening claw portion of the present invention;

[0032] Figure 13 This is a perspective view of the barrier of the present invention in an open state.

[0033] Among them, 1. Support frame; 2. Lifting assembly; 3. Drive assembly; 4. Stabilizing assembly; 5. Suction cup assembly; 6. Opening assembly; 7. Opening piece; 8. Air supply piece; 201. Lifting frame; 202. Lifting motor; 203. Lifting belt; 204. Guide groove; 205. Lifting seat; 301. Drive frame; 302. Drive motor; 303. Drive belt; 304. Drive groove; 305. Drive seat; 401. Stabilizing frame; 402. Extension plate; 403. Limit block; 601. Telescopic device; 602. Mounting seat; 603, connecting seat; 604, arc frame; 605, supporting seat; 606, driving arm; 607, supporting arm; 608, mounting block; 609, blocking claw; 6081, slide rail; 6082, return spring; 701, opening claw; 702, blocking piece; 703, slider; 704, rotating part; 7011, cavity; 7012, air outlet; 7013, air inlet; 7014, adapter slot; 801, insertion tube; 802, air outlet pipe; 803, air inlet valve; 804, air inlet pipe. DETAILED DESCRIPTION

[0034] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0035] like Figures 1-13As shown, an embodiment of the present invention provides a valve bag vertical bag loading device, comprising a support frame 1, a lifting assembly 2 being provided on the support frame 1, the lifting assembly 2 comprising a lifting frame 201 fixedly mounted on the support frame 1, a lifting motor 202 being fixedly mounted on the lifting frame 201, a driving wheel being rotatably connected to the inner side of the lifting frame 201, an output end of the lifting motor 202 being fixedly connected to one of its driving wheels, a lifting belt 203 being provided between the two driving wheels, a lifting seat 205 being fixedly connected to the lifting belt 203, a guide groove 204 being provided on the lifting frame 201, and the lifting seat 205 being slidably engaged with the guide groove 204;

[0036] refer to Figure 1 、 Figure 3 During the lifting operation, the lifting motor 202 works under the action of the power supply and the controller, driving one of the driving wheels to rotate, and the driving wheel drives the lifting belt 203 to move, thereby driving the lifting seat 205 to rise or fall; among them, the driving wheel and the lifting belt 203 can adopt the synchronous belt and synchronous wheel on the market, which can ensure the good accuracy of the lifting process; the position of the lifting seat 205 can be measured in real time by using an infrared distance sensor in conjunction with the controller; the support frame 1 is made of square tubes welded together to provide stable support for other components.

[0037] The moving part of the lifting assembly 2 is provided with a driving assembly 3, which includes a driving frame 301 fixedly mounted on the lifting seat 205. A driving motor 302 is fixedly mounted on the driving frame 301. A driving wheel is rotatably connected to the inner side of the driving frame 301. The driving motor 302 is fixedly connected to one of its driving wheels. A driving belt 303 is provided between the two driving wheels. A driving seat 305 is fixedly connected to the driving belt 303. A driving slot 304 is provided on the driving frame 301. The driving seat 305 slidably cooperates with the driving slot 304.

[0038] refer to Figure 4 、 Figure 2 During driving operation, the driving motor 302 works under the action of the external power supply and controller, driving the driving wheel to rotate, and the driving wheel drives the driving belt 303 to move, thereby driving the driving base 305 to rise or fall. The driving groove 304 is used to ensure the stability of the lifting and lowering of the driving base 305. The driving wheel and the driving belt 303 use synchronous belts and synchronous wheels on the market.

[0039] Also includes:

[0040] Stabilizing assembly 4, which is disposed on the moving part of driving assembly 3; stabilizing assembly 4 includes a stabilizing frame 401, to which an extension plate 402 is fixedly connected, and an end of the extension plate 402 away from the stabilizing frame 401 is fixedly connected to a limit block 403, and the limit block 403 contacts the arc frame 604 at the extreme position;

[0041] refer to Figure 5The stabilizing frame 401 and the extension plate 402 provide the necessary support for the position of the suction cup group 5, and facilitate the insertion into the trolley for delivering the valve bag; the limit block 403 is used to provide support for the arc frame 604, ensuring that the extreme position of the rotation of the arc frame 604 can correspond to the valve port of the valve bag.

[0042] The suction cup group 5 is provided at the lower part of the stabilizing component 4 and is used for negative pressure adsorption of the valve pocket;

[0043] refer to Figure 1 、 Figure 2 The suction cup group 5 is composed of a plurality of suction cups arranged in a line, and the plurality of suction cups are interconnected with an external vacuum pump through a pipeline. The valve bag can be adsorbed by the suction cup group 5.

[0044] The opening assembly 6 is arranged at one end of the stabilizing assembly 4 near the valve port of the valve pocket. The opening assembly 6 includes a telescopic component and an arc frame 604. The arc frame 604 is provided with a support arm 607 and a driving arm 606. The end of the arc frame 604 away from the driving arm 606 is fixedly connected to a mounting block 608. The side of the mounting block 608 is fixedly connected to a blocking claw 609. The arc frame 604 can be driven by the telescopic component to rotate with the support arm 607 as the center of the circle; the outer side of the mounting block 608 is installed with an air supply member 8, and the inner side of the mounting block 608 is installed with an opening member 7. The opening member 7 opens under the action of the air flow sent by the air supply member 8;

[0045] refer to Figure 7 、 Figure 6 During the opening operation, the telescopic component drives the arc frame 604 to rotate with the support arm 607 as the center, thereby driving the mounting block 608 to move downward to the valve mouth of the valve bag, and the opening member 7 can be inserted into the valve mouth, and under the action of the airflow, the valve mouth is stretched open to provide the necessary opening for subsequent bag delivery and filling; the blocking claw 609 is used to block the valve bag to ensure the stability of the valve mouth of the valve bag; the end of the blocking claw 609 away from the mounting block 608 is arc-shaped, to ensure that the blocking claw 609 will not scratch the valve bag, and to avoid movement interference between the blocking claw 609 and the valve bag.

[0046] The telescopic component includes a mounting base 602 and a support base 605 fixedly mounted on the stabilizing assembly 4. The mounting base 602 is rotatably connected to the telescopic device 601. The telescopic end of the telescopic device 601 is fixedly connected to the connecting base 603. The supporting base 605 is rotatably engaged with the support arm 607, and the connecting base 603 is rotatably engaged with the driving arm 606.

[0047] refer to Figure 6 、 Figure 7 During the telescopic operation, the telescopic device 601 can be any one of a telescopic cylinder and an electric push rod, which can drive the connecting seat 603 to extend or retract, thereby driving the arc frame 604 to rotate through the driving arm 606.

[0048] The air delivery member 8 includes an insertion tube 801 fixedly mounted on the mounting block 608, the inner end of the insertion tube 801 is fixedly connected to the air outlet pipe 802, the outer end of the insertion tube 801 is fixedly mounted to the air inlet valve 803, the air inlet pipe 804 is fixedly connected to the air inlet valve 803, and the air inlet pipe 804 is connected to the external air source;

[0049] refer to Figure 7 、 Figure 9 During the air supply operation, the external air source enters the extension tube 801 through the air inlet pipe 804 and the air inlet valve 803, and then blows out from the opening of the air outlet pipe 802; the air inlet valve 803 can be a solenoid valve for controlling the entry of gas.

[0050] The opening member 7 includes a slide rail 6081 fixedly mounted on the mounting block 608 near the valve pocket, a slider 703 is slidably connected to the slide rail 6081, a return spring 6082 is fixedly connected between the slider 703 and the mounting block 608, an opening claw 701 is fixedly connected to the slider 703, an adapting groove 7014 is provided at one end of the opening claw 701 near the slider 703, the adapting groove 7014 is adapted to the insertion tube 801, an air inlet 7013 is provided in the adapting groove 7014, a cavity 7011 is provided in the opening claw 701, an air outlet 7012 is provided on the outer wall of the opening claw 701, and the end of the opening claw 701 near the slider 703 is rotatably connected to the baffle 702 through the rotating part 704. When the baffle 702 is not subjected to force, it is tightly attached to the opening claw 701, and the baffle 702 covers and blocks the air outlet 7012;

[0051] refer to Figure 8 、 Figure 10 、 Figure 11 、 Figure 12 、 Figure 13 During the opening operation, when the external air flow is blown out from the opening of the air outlet pipe 802, the air flow directly acts on the inner wall of the adapting groove 7014. The thrust generated by the air flow will first push the opening claw 701 and the slider 703 as a whole to overcome the elastic force of the return spring 6082 and slide on the slide rail 6081 along the length direction of the air outlet pipe 802, thereby achieving the function of initially opening the valve port; the existence of the baffle 702 will increase the diameter of the thicker part of the opening claw 701, and also increase the opening degree of the opening claw 701;

[0052] Due to the presence of the air inlet 7013, the air flow in the adapting groove 7014 will enter the cavity 7011 from the air inlet 7013. The baffle 702 covers the air outlet 7012 due to the elasticity of its own material. It takes a certain amount of time for the cavity 7011 to be filled with gas. When the opening claw 701 and the slider 703 move to the limit position as a whole, the air pressure in the cavity 7011 will increase due to the continuous flow of gas. The high-pressure air flow will push the baffle 702 to rotate around the rotating part 704 as the center of the circle. The baffle 702 is in the open state, further opening the valve port to ensure that the valve port is fully opened.

[0053] The sliders 703 are symmetrically arranged to reduce the friction between the opening claw 701 and the slider 703 when they move together. The return spring 6082 generates an elastic force when compressed, which can push the slider 703 and the opening claw 701 back to their original position, facilitating the next opening operation. The opening claw 701 can be made of plastic material, which is lightweight and allows the gas to be easily blown away. Since one end of the opening claw 701 is pointed, the opening claw 701 will be inserted into the valve port of the valve bag as the arc frame 604 rotates, thereby initially expanding the valve port.

[0054] While the arc frame 604 is resetting, the friction between the baffle 702 and the valve bag can further expand the lower portion of the valve opening of the valve bag, making the valve opening more suitable for the filling nozzle; due to the elastic force of the baffle 702 itself, when not blown by the airflow, the baffle 702 will reattach to the outer wall of the opening claw 701, for example, the baffle 702 can be made of rubber.

[0055] The baffles 702 may be provided in multiple numbers, for example, two, four, or six, depending on the actual opening state of the valve port. The multiple baffles 702 correspond to the multiple air outlet holes 7012, ensuring that each air outlet hole 7012 can blow up one baffle 702, thereby increasing the contact points between the baffle 702 and the inner wall of the valve port of the valve bag, so that the valve port is expanded more thoroughly.

[0056] A sealing ring can be added at the inner wall of the adapter groove 7014 and the root position of the air outlet pipe 802, so that the air flow can only enter the air inlet 7013, and the air flow will not be discharged from the adapter groove 7014, thereby improving the utilization rate of the air flow; since the outlet end of the air outlet pipe 802 is designed to be pointed, most of the air flow can be blocked by the obstruction of the air outlet pipe 802 itself, and the remaining air flow can enter the air inlet 7013.

[0057] There are two opening claws 701 , and the shape of the two opening claws 701 as a whole is conical, and the longitudinal cross-section of the blocking piece 702 is circular.

[0058] refer to Figure 10 One end of the opening claw 701 is a pointed tip, so it is easier to insert into the valve port of the valve bag.

[0059] Working principle: During bag loading operation, the lifting motor 202 works under the action of the power supply and controller, driving one of the driving wheels to rotate, which in turn drives the lifting belt 203 to move, thereby driving the lifting seat 205 to descend. Then, the driving motor 302 works under the action of the external power supply and controller, driving the driving wheel to rotate, which in turn drives the driving belt 303 to move, thereby driving the driving seat 305 to descend, causing the suction cup group 5 to contact the valve bag and utilize the negative pressure adsorption force of the suction cup group 5 to adsorb the valve bag.

[0060] Then the lifting motor 202 and the driving motor 302 are turned over. In the process of the valve bag moving vertically upward, the telescopic component drives the arc frame 604 through the driving arm 606 to rotate toward the side away from the telescopic device 601 with the connection between the support arm 607 and the support seat 605 as the center of the circle, thereby driving the mounting block 608 to move downward to the valve opening of the valve bag. The opening claw 701 in the opening member 7 can be inserted into the valve opening to perform preliminary expansion of the valve opening.

[0061] During the opening operation, when the external air flow is blown out from the opening of the air outlet pipe 802, the air flow directly acts on the inner wall of the adapting groove 7014. The thrust generated by the air flow will first push the opening claw 701 and the slider 703 as a whole to overcome the elastic force of the return spring 6082 and slide on the slide rail 6081 along the length direction of the air outlet pipe 802, thereby achieving the function of initially opening the valve port;

[0062] Due to the presence of the air inlet 7013, the air flow in the adapting groove 7014 will enter the cavity 7011 from the air inlet 7013. The baffle 702 covers the air outlet 7012 due to the elasticity of its own material. It takes a certain amount of time for the cavity 7011 to be filled with gas. When the opening claw 701 and the slider 703 move to the limit position as a whole, the air pressure in the cavity 7011 will increase due to the continuous flow of gas. The high-pressure air flow will push the baffle 702 to rotate around the rotating part 704 as the center of the circle. The baffle 702 is in the open state, further opening the valve port to ensure that the valve port is fully opened.

[0063] Then, while the arc frame 604 is resetting, the friction between the baffle 702 and the valve bag can be used to further expand the lower part of the valve opening of the valve bag, so that the valve opening is more suitable for the filling nozzle;

[0064] Then the air outlet pipe 802 stops supplying air, and the baffle 702 will be reattached to the outer wall of the opening claw 701 due to the elastic force of its own material, thereby meeting the requirements of the next opening operation.

[0065] While embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions, and variations may be made to these embodiments without departing from the principles and spirit of the invention, and that the scope of the invention is defined by the appended claims and their equivalents.

Claims

1. A valve bag vertical bag loading device, comprising a support frame (1), a lifting assembly (2) provided on the support frame (1), a driving assembly (3) provided on a moving part of the lifting assembly (2), characterized in that: Also includes: A stabilizing assembly (4), the stabilizing assembly (4) being arranged on a moving part of the driving assembly (3); the stabilizing assembly (4) comprising a stabilizing frame (401), an extension plate (402) being fixedly connected to the stabilizing frame (401), an end of the extension plate (402) away from the stabilizing frame (401) being fixedly connected to a limiting block (403), the limiting block (403) being in contact with the arc frame (604) at the extreme position; A suction cup assembly (5), the suction cup assembly (5) being arranged at the lower portion of the stabilizing assembly (4) and being used for the negative pressure adsorption valve pocket; An opening assembly (6), wherein the opening assembly (6) is arranged at one end of the stabilizing assembly (4) close to the valve port of the valve pocket, and the opening assembly (6) comprises a telescopic component and an arc frame (604), wherein the arc frame (604) is provided with a support arm (607) and a driving arm (606), wherein the end of the arc frame (604) away from the driving arm (606) is fixedly connected to a mounting block (608), and a blocking claw (609) is fixedly connected to the side of the mounting block (608), and the arc frame (604) can be driven by the telescopic component to rotate with the support arm (607) as the center of a circle; an air supply member (8) is installed on the outer side of the mounting block (608), and an opening member (7) is installed on the inner side of the mounting block (608), and the opening member (7) opens under the action of the air flow sent in by the air supply member (8); The telescopic component comprises a mounting seat (602) fixedly mounted on the stabilizing assembly (4) and a support seat (605); the mounting seat (602) is rotatably connected to a telescopic device (601); the telescopic end of the telescopic device (601) is fixedly connected to a connecting seat (603); the supporting seat (605) is rotatably engaged with a supporting arm (607); and the connecting seat (603) is rotatably engaged with a driving arm (606); The air delivery member (8) comprises an insertion tube (801) fixedly mounted on the mounting block (608), the inner end of the insertion tube (801) being fixedly connected to an air outlet tube (802), the outer end of the insertion tube (801) being fixedly mounted to an air intake valve (803), the air intake valve (803) being fixedly connected to an air intake pipe (804), and the air intake pipe (804) being connected to an external air source; The opening member (7) comprises a slide rail (6081) fixedly mounted on a side of the mounting block (608) close to the valve pocket, a slider (703) being slidably connected to the slide rail (6081), a return spring (6082) being fixedly connected between the slider (703) and the mounting block (608), an opening claw (701) being fixedly connected to the slider (703), an adapting groove (7014) being provided at one end of the opening claw (701) close to the slider (703), the adapting groove (7014) being in contact with the insertion tube (8 01) adaptation, an air inlet (7013) is provided in the adaptation groove (7014), a cavity (7011) is provided in the opening claw (701), an air outlet (7012) is provided on the outer wall of the opening claw (701), and an end of the opening claw (701) close to the slider (703) is rotatably connected to a baffle (702) through a rotating portion (704), and the baffle (702) is in close contact with the opening claw (701) in an unstressed state, and the baffle (702) covers and blocks the air outlet (7012).

2. A valve bag vertical bag loading device according to claim 1, characterized in that: The lifting assembly (2) comprises a lifting frame (201) fixedly mounted on the support frame (1); a lifting motor (202) is fixedly mounted on the lifting frame (201); a driving wheel is rotatably connected to the inner side of the lifting frame (201); an output end of the lifting motor (202) is fixedly connected to one of its driving wheels; a lifting belt (203) is provided between the two driving wheels; a lifting seat (205) is fixedly connected to the lifting belt (203); a guide groove (204) is provided on the lifting frame (201); and the lifting seat (205) is slidably engaged with the guide groove (204).

3. The valve bag vertical bag loading device according to claim 2, characterized in that: The driving assembly (3) includes a driving frame (301) fixedly mounted on the lifting seat (205), a driving motor (302) fixedly mounted on the driving frame (301), a driving wheel rotatably connected to the inner side of the driving frame (301), the driving motor (302) being fixedly connected to one of its driving wheels, a driving belt (303) being provided between the two driving wheels, a driving seat (305) being fixedly connected to the driving belt (303), a driving slot (304) being provided on the driving frame (301), and the driving seat (305) being in sliding engagement with the driving slot (304).

4. The valve bag vertical bag loading device according to claim 1, characterized in that: There are two opening claws (701), and the shape of the two opening claws (701) as a whole is conical, and the longitudinal cross-section of the blocking piece (702) is circular.

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