A discharging mechanism for ton bag machine

Abstract

The utility model relates to a kind of unloading mechanism for ton bag machine, and its technical solution main points are: including: fixed plate, connecting valve, blanking module, unloading barrel, drive module and valve module;The drive module is installed on the fixed plate;The connecting valve is installed on the fixed plate, and its discharge end passes through the fixed plate and is connected and communicated with the blanking module;The blanking module is slidably installed below the fixed plate by several guide columns;The output end of the drive module passes through the fixed plate and is drivingly connected with the assembly end of the blanking module;The valve module is installed in the inner side of the discharge end of the blanking module;The unloading barrel is installed in the discharge end of the blanking module, and is communicated with the blanking passage of the blanking module by the valve module;The outer side of the unloading barrel is provided with bag mouth clamping module;The overall structure of the present application is stable, easy to install, and can effectively ensure the filling accuracy of ton bag.

Description

Technical Field

[0001] This utility model relates to the technical field of ton bag making equipment, and more specifically, it relates to a feeding mechanism for a ton bag making machine. Background Technology

[0002] In the ultrafine powder ton bag packaging industry, to prevent powder spillage, a discharge valve with a lifting slide tube is used for material unloading. When unloading via the slide tube, the dust is kept as close to the bottom of the ton bag as possible, avoiding excessive descent and powder spillage. This also allows for a more even distribution of powder at the bottom of the ton bag, resulting in a more square shape after filling, facilitating transportation and storage. However, the butterfly valve and slide tube unloading method can easily cause random powder accumulation in the slide tube, making it difficult to accurately control the weighing precision during the filling process. Because its operation is as follows: after the filling reaches the set value, the unloading valve is closed and the process ends. However, since the unloading valve is installed in the front section of the slide tube, there will be some material residue in the slide tube (mainly the tube arm accumulation). This material residue will fall randomly, causing the weight of the ton bag after filling and metering to increase randomly. Therefore, during the filling process, there are usually problems such as the high accuracy requirement of powder ton bag filling (metering accuracy 0.1% (200g)), the random increase in the weight of the ton bag, which cannot meet the high accuracy requirement of ton bag filling. At the same time, after the previous ton bag is filled, during the bag changing gap between the next ton bag and the previous bag, the residual material accumulated in the slide tube is randomly discharged, causing the powder to overflow and failing to achieve the dust-free filling requirement. Therefore, a new material feeding mechanism for ton bag machine is proposed. Utility Model Content

[0003] In view of the shortcomings of the existing technology, the purpose of this utility model is to provide a feeding mechanism for a ton bag machine to solve the technical problems existing in the background art.

[0004] The above-mentioned technical objective of this utility model is achieved through the following technical solution: a feeding mechanism for a ton bag machine, comprising: a fixed plate for connecting to the frame of the ton bag machine, a connecting valve for connecting to the storage bin of the ton bag machine, a feeding module, a feeding bucket, a drive module for driving the feeding module to move up and down, and a valve module for controlling the opening and closing of the feeding channel of the feeding module; the drive module is mounted on the fixed plate; the connecting valve is mounted on the fixed plate, and its discharge end passes through the fixed plate and is connected and communicates with the feeding module; the feeding module is slidably mounted below the fixed plate through several guide columns; the output end of the drive module passes through the fixed plate and is drively connected to the assembly end of the feeding module; the valve module is mounted inside the discharge end of the feeding module; the feeding bucket is mounted on the discharge end of the feeding module and communicates with the feeding channel of the feeding module through the valve module; a clamping module for clamping and fixing the bag opening of the ton bag is provided on the outside of the feeding bucket.

[0005] Optionally, the valve module includes: a valve barrel, a valve plate adapted to the valve barrel, a rotating shaft, a gear, a rack adapted to the gear, and a cylinder; the upper end of the valve barrel is fixedly connected to the discharge end of the unloading module; one end of the rotating shaft is fixedly connected to the gear; the other end of the rotating shaft passes through the side wall of the lower end of the valve barrel and is placed inside the valve barrel, and is fixedly connected to the valve plate; the valve plate is rotatably mounted inside the valve barrel via the rotating shaft; the cylinder is fixedly mounted on the outer wall of the lower end of the valve barrel, and its output end is fixedly connected to the rack; the rack meshes with the gear; the unloading barrel is covered on the outside of the valve barrel.

[0006] Optionally, the material discharge module includes: a mounting plate, a telescopic hose, and a material discharge cylinder; the upper end of the telescopic hose is connected to and communicates with the connecting valve; the upper end of the material discharge cylinder passes through the mounting plate and is connected to and communicates with the lower end of the telescopic hose; the valve barrel is installed on the inner side of the lower end of the material discharge cylinder; the discharge bucket is fixedly connected to the outer side of the lower end of the material discharge cylinder and communicates with the material discharge cylinder through the valve barrel; the material discharge cylinder is fixedly connected to the mounting plate; the mounting plate is drivenly connected to the output end of the drive module.

[0007] Optionally, the drive module includes: a drive motor, a worm gear reducer, four lead screw lifting seats, and four lifting lead screws corresponding one-to-one with the four lead screw lifting seats; the four lead screw lifting seats are respectively installed at the four corners of the upper end face of the fixed plate; the lead screw lifting seats are connected in series through a drive shaft and a coupling; the drive motor is installed on the fixed plate, and its output end is drivenly connected to the worm gear reducer; the output end of the worm gear reducer is drivenly connected to any of the drive shafts; the upper ends of the four lifting lead screws are drivenly connected to the four lead screw lifting seats one-to-one, and their lower ends pass through the fixed plate and are fixedly connected to the four corners of the mounting plate; each of the four lead screw lifting seats is provided with a dust cover corresponding to one-to-one with the four lifting lead screws.

[0008] Optionally, the clamping module includes: a bag-clamping airbag; an mounting slot is provided on the outer wall of the upper end of the feeding barrel; and the bag-clamping airbag is mounted on the mounting slot.

[0009] Optionally, it also includes at least one internal suction pipe for removing powder from the inner wall of the discharge cylinder and the telescopic hose; one end of the internal suction pipe passes through the side wall of the lower end of the discharge cylinder and is placed inside the discharge cylinder, and the other end is connected to and communicates with an external vacuuming device.

[0010] Optionally, it also includes at least one external suction pipe for cleaning powder from the outer wall of the feeding hopper and the discharge cylinder; one end of the external suction pipe is obliquely installed below the mounting plate via a bracket, and its extended end is provided with a suction hood; the suction hood faces the discharge cylinder and the discharge hopper; the other end of the external suction pipe is connected and communicates with an external suction device.

[0011] This utility model has a stable overall structure and is easy to install. By setting a valve module, it can prevent powder that has accumulated on the inner wall of the material discharge module from falling after the ton bag filling is completed, thus avoiding affecting the filling accuracy of the ton bag. By setting internal and external dust suction pipes, after the previous ton bag is filled, the powder that has accumulated on the material discharge module and the material discharge bucket can be removed to avoid affecting the filling accuracy of the next ton bag. Attached Figure Description

[0012] Figure 1 This is an assembly drawing of this utility model; Figure 2 This is a schematic diagram of the structure of this utility model during assembly; Figure 3 This is a schematic diagram showing the positional relationship between the drive module and the fixing plate in this utility model; Figure 4 This is a schematic diagram of the valve module in this utility model.

[0013] In the diagram: 1. Fixed plate; 2. Connecting valve; 3. Unloading module; 31. Mounting plate; 32. Telescopic hose; 33. Unloading cylinder; 4. Feeding bucket; 5. Drive module; 51. Worm gear reducer; 52. Screw lifting seat; 53. Lifting screw; 54. Dust cover; 6. Valve module; 61. Valve barrel; 62. Valve plate; 63. Rotating shaft; 64. Gear; 65. Rack; 66. Cylinder; 7. Clamping module; 71. Bag clamping airbag; 8. Inner suction pipe; 9. Outer suction pipe; 10. Dust hood; 11. Guide column. Detailed Implementation

[0014] To make the objectives, features, and advantages of this utility model more apparent and understandable, the specific embodiments of this utility model are described in detail below with reference to the accompanying drawings. Several embodiments of this utility model are shown in the drawings. However, this utility model can be implemented in many different forms and is not limited to the embodiments described herein.

[0015] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances. The terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Therefore, a feature defined with "first" or "second" may explicitly or implicitly include one or more of that feature.

[0016] In this invention, unless otherwise expressly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" of the second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature. The terms "vertical," "horizontal," "left," "right," "above," "below," and similar expressions are for illustrative purposes only and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed or operated in a specific orientation, and therefore should not be construed as limiting the invention.

[0017] The present invention will now be described in detail with reference to the accompanying drawings and embodiments.

[0018] like Figure 1As shown, this utility model provides a feeding mechanism for a ton bag machine, including: a fixed plate 1 for connecting to the frame of the ton bag machine, a connecting valve 2 for connecting to the storage bin of the ton bag machine, a feeding module 3, a feeding bucket 4, a drive module 5 for driving the feeding module 3 to move up and down, and a valve module 6 for controlling the opening and closing of the feeding channel of the feeding module 3; the drive module 5 is mounted on the fixed plate 1; the connecting valve 2 is mounted on the fixed plate 1, and its discharge end passes through the fixed plate 1 and is connected to the feeding module 3. The material discharge module 3 is slidably mounted below the fixed plate 1 via several guide posts 11; the output end of the drive module 5 passes through the fixed plate 1 and is connected to the assembly end of the material discharge module 3; the valve module 6 is installed inside the discharge end of the material discharge module 3; the discharge bucket 4 is installed at the discharge end of the material discharge module 3 and is connected to the discharge channel of the material discharge module 3 via the valve module 6; a clamping module 7 for clamping and fixing the bag opening of the ton bag is provided on the outside of the discharge bucket 4.

[0019] In this embodiment, as Figure 1-4 As shown, the feeding mechanism consists of a fixed plate 1, a connecting valve 2, a discharge module 3, a discharge hopper 4, a drive module 5, a valve module 6, and a bag mouth clamping module 7. The connecting valve 2 is a flanged hard-seal butterfly valve. The fixed plate 1 serves as the mounting base for the entire feeding mechanism and is fixedly connected to the frame of the ton bag machine. The connecting valve 2 is installed on the fixed plate 1; its inlet end connects to the storage bin of the ton bag machine, and its outlet end passes through the fixed plate 1 and connects to the discharge module 3, serving as the inlet for powder to enter the feeding mechanism. The discharge module 3 is slidably mounted via several guide columns 11. The device is installed below the fixed plate 1 to ensure stability during the lifting process; the drive module 5 is installed on the fixed plate 1, and its output end passes through the fixed plate 1 and is connected to the material discharge module 3 for driving the material discharge module 3 to lift; the valve module 6 is installed inside the discharge end of the material discharge module 3 to control the opening and closing of the material discharge channel; the feeding bucket 4 is installed at the discharge end of the material discharge module 3 and is connected to the material discharge channel through the valve module 6; the bag mouth clamping module 7 is set outside the feeding bucket 4 to clamp the bag mouth of the ton bag; the overall structure is stable and easy to install, which can effectively ensure the filling accuracy of the ton bag.

[0020] Further, the valve module 6 includes: a valve barrel 61, a valve plate 62 adapted to the valve barrel 61, a rotating shaft 63, a gear 64, a rack 65 adapted to the gear 64, and a cylinder 66; the upper end of the valve barrel 61 is fixedly connected to the discharge end of the unloading module 3; one end of the rotating shaft 63 is fixedly connected to the gear 64; the other end of the rotating shaft 63 passes through the side wall of the lower end of the valve barrel 61 and is placed inside the valve barrel 61, and is fixedly connected to the valve plate 62; the valve plate 62 can be flipped and installed inside the valve barrel 61 through the rotating shaft 63; the cylinder 66 is fixedly installed on the outer wall of the lower end of the valve barrel 61, and its output end is fixedly connected to the rack 65; the rack 65 is meshed with the gear 64; the unloading barrel 4 is covered on the outside of the valve barrel 61.

[0021] In this embodiment, as Figure 2 , 4 As shown, the upper end of the valve barrel 61 is fixed to the discharge end of the material feeding module 3 by bolts (or welding), serving as the mounting carrier for the valve module 6; one end of the rotating shaft 63 is welded to the gear 64, and the other end extends through the lower side wall of the valve barrel 61 into the barrel and is welded to the valve plate 62. The valve plate 62 is rotatably mounted inside the valve barrel 61 via the rotating shaft 63, with a rotation angle range of 0°-90°. At 0°, the material feeding channel is blocked, and at 90°, the channel is fully opened; the cylinder 66 is fixed to the lower outer wall of the valve barrel 61 via a mounting base. The output end of cylinder 66 is bolted to rack 65, and rack 65 meshes with gear 64. During operation, the output end of cylinder 66 performs linear reciprocating motion, driving rack 65 to move synchronously. Rack 65 drives gear 64 to rotate around shaft 63, thereby driving valve plate 62 to flip, realizing precise opening and closing of the material discharge channel, and avoiding residual powder falling after filling and affecting accuracy. The discharge hopper 4 is completely covered outside valve hopper 61 and bolted to the lower outer side of discharge cylinder 33. Powder only enters discharge hopper 4 from valve hopper 61 when valve plate 62 is opened.

[0022] Further, the material discharge module 3 includes: a mounting plate 31, a telescopic hose 32, and a material discharge cylinder 33; the upper end of the telescopic hose 32 is connected to and communicates with the connecting valve 2; the upper end of the material discharge cylinder 33 passes through the mounting plate 31 and is connected to and communicates with the lower end of the telescopic hose 32; the valve barrel 61 is installed on the inner side of the lower end of the material discharge cylinder 33; the discharge bucket 4 is fixedly connected to the outer side of the lower end of the material discharge cylinder 33 and communicates with the material discharge cylinder 33 through the valve barrel 61; the material discharge cylinder 33 is fixedly connected to the mounting plate 31; the mounting plate 31 is drively connected to the output end of the drive module 5.

[0023] In this embodiment, as Figure 1-3As shown, the upper end of the telescopic hose 32 is connected to the flange at the discharge end of the connecting valve 2, ensuring the flow of powder while adapting to the lifting and lowering action of the discharge module 3; the upper end of the discharge cylinder 33 passes through the mounting plate 31 and is connected to the flange at the lower end of the telescopic hose 32, and the discharge cylinder 33 is welded and fixed to the mounting plate 31; the mounting plate 31 is connected to the output end of the drive module 5, and the drive module 5 can drive the mounting plate 31 and the discharge cylinder 33 to rise and fall along the guide column 11, so that the discharge bucket 4 is as close as possible to the bottom of the ton bag, reducing powder spillage; the aforementioned valve bucket 61 is installed on the inner side of the lower end of the discharge cylinder 33 and is welded and fixed to the inner wall of the discharge cylinder 33 to ensure the connection is sealed.

[0024] Further, the drive module 5 includes: a drive motor, a worm gear reducer 51, four lead screw lifting seats 52, and four lifting lead screws 53 corresponding one-to-one with the four lead screw lifting seats 52; the four lead screw lifting seats 52 are respectively installed at the four corners of the upper end face of the fixed plate 1; the lead screw lifting seats 52 are connected in series through a transmission shaft and a coupling; the drive motor is installed on the fixed plate 1, and its output end is connected to the worm gear reducer 51; the output end of the worm gear reducer 51 is connected to any of the transmission shafts; the upper ends of the four lifting lead screws 53 are respectively connected to the four lead screw lifting seats 52, and their lower ends pass through the fixed plate 1 and are fixedly connected to the four corners of the mounting plate 31; each of the four lead screw lifting seats 52 is provided with a dust cover 54 corresponding one-to-one with the four lifting lead screws 53.

[0025] In this embodiment, as Figure 1-3 As shown, four lead screw lifting seats 52 are respectively installed at the four corners of the upper surface of the fixed plate 1. The lead screw lifting seats 52 are connected in series through a transmission shaft and a coupling to achieve synchronous transmission. The drive motor is fixed on the fixed plate 1 through a motor mounting seat. The output end is connected to the worm gear reducer 51 through a coupling. The output end of the worm gear reducer 51 is connected to any transmission shaft. The worm gear reducer 51 is used to reduce the speed and increase the torque to ensure drive stability. The upper ends of the four lifting lead screws 53 are connected to the lead screw lifting seats 52 one by one. The lower ends pass through the fixed plate 1 and are fixed to the nut seats at the four corners of the mounting plate 31. After the drive motor starts, the power is transmitted to the transmission shaft through the worm gear reducer 51, which drives the four lead screw lifting seats 52 to move synchronously, thereby driving the lifting lead screws 53 to rotate, and finally driving the mounting plate 31 and the material dropping module 3 to rise and fall along the guide column 11. Each lead screw lifting seat 52 is equipped with a dust cover 54 to cover the mating parts of the lead screw and the lifting seat to prevent powder from entering and affecting the transmission accuracy.

[0026] Furthermore, the clamping module 7 includes: a bag clamping airbag 71; the upper outer wall of the feeding barrel 4 is provided with an installation slot; the bag clamping airbag 71 is installed on the installation slot, and during use, the bag clamping airbag 71 expands after being placed at the mouth of the ton bag to expand and clamp the mouth of the ton bag.

[0027] In this embodiment, as Figure 1 As shown, an annular mounting groove is provided on the outer wall of the upper end of the material barrel, and the bag clamping airbag 71 is adapted to be clamped in the groove. Before filling, the bag mouth of the ton bag is placed on the outside of the material barrel 4 and covered with the bag clamping airbag 71. The airbag is inflated and inflated, and the airbag is tightly fitted to the inside of the bag mouth of the ton bag. The expansion and squeezing force is used to clamp the bag mouth to prevent the bag mouth from falling off or the powder from overflowing during the material feeding process. After filling, the airbag is deflated, and the bag mouth of the ton bag can be released. The operation is convenient and the clamping effect is stable.

[0028] Furthermore, it also includes at least one inner suction pipe 8 for removing powder from the inner walls of the discharge cylinder 33 and the telescopic hose 32; one end of the inner suction pipe 8 passes through the side wall of the lower end of the discharge cylinder 33 and is placed inside the discharge cylinder 33, and the other end is connected to and communicates with an external vacuuming device.

[0029] In this embodiment, as Figure 1-3 As shown, to remove powder adhering to the inner walls of the discharge cylinder 33 and the telescopic hose 32, two internal suction pipes 8 are symmetrically arranged on both sides of the discharge cylinder 33. In other embodiments, the number of internal suction pipes 8 can be increased or decreased according to the actual situation: one end of the internal suction pipe 8 extends through the lower side wall of the discharge cylinder 33 into the cylinder, with the port facing the connection between the telescopic hose 32 and the discharge cylinder 33; the other end is connected to an external industrial vacuum cleaner. When the vacuum cleaner is working, it generates negative pressure, and after the ton bag is filled, the residual powder on the inner walls of the discharge cylinder 33 and the telescopic hose 32 is sucked away, avoiding the residual powder from falling randomly and affecting the filling accuracy.

[0030] Furthermore, it also includes at least one external suction pipe 9 for cleaning powder from the outer walls of the feeding hopper 4 and the discharge cylinder 33; one end of the external suction pipe 9 is obliquely installed below the mounting plate 31 via a bracket, and its extended end is provided with a suction hood 10; the suction hood 10 faces the discharge cylinder 33 and the feeding hopper 4; the other end of the external suction pipe 9 is connected and communicates with an external suction device.

[0031] In this embodiment, as Figure 1-3As shown, there are also two external suction pipes 9, which are symmetrically arranged on both sides of the lower end of the material discharge cylinder 33. In other embodiments, the number can be increased or decreased according to the actual situation. One end of the external suction pipe 9 is installed below the mounting plate 31 through an inclined bracket. The bracket is made of stainless steel angle steel to ensure the stability of the installation angle. A horn-shaped dust suction hood 10 is installed at the extended end of the external suction pipe 9. The opening of the dust suction hood 10 faces the outer wall of the material discharge cylinder 33 and the material discharge bucket 4. The other end is connected to an external dust collection device, which can remove the powder adhering to the outer wall of the material discharge cylinder 33 and the material discharge bucket 4 after the ton bag is filled in real time, so as to achieve dust-free filling.

[0032] This utility model discloses a feeding mechanism for a ton bag machine. The overall structure is stable and easy to install. By setting a valve module, it can prevent powder accumulated on the inner wall of the feeding module from falling after the ton bag is filled, thus avoiding affecting the filling accuracy of the ton bag. By setting internal and external dust suction pipes, after the previous ton bag is filled, the powder accumulated on the feeding module and feeding bucket can be removed to avoid affecting the filling accuracy of the next ton bag.

[0033] The above description is merely a preferred embodiment of this utility model. The protection scope of this utility model is not limited to the above embodiments. All technical solutions falling within the scope of this utility model's concept are protected. It should be noted that for those skilled in the art, any improvements and modifications made without departing from the principle of this utility model should also be considered within the protection scope of this utility model.

Claims

1. A feeding mechanism for a ton bag machine, characterized in that, include: A fixed plate for connecting to the frame of the ton bag machine, a connecting valve for connecting to the storage bin of the ton bag machine, a material discharge module, a material discharge bucket, a drive module for driving the material discharge module to move up and down, and a valve module for controlling the opening and closing of the material discharge channel of the material discharge module; the drive module is mounted on the fixed plate; the connecting valve is mounted on the fixed plate, and its discharge end passes through the fixed plate and is connected to and communicates with the material discharge module; the material discharge module is slidably mounted below the fixed plate through several guide columns. The output end of the drive module passes through the fixing plate and is connected to the assembly end of the unloading module; the valve module is installed inside the discharge end of the unloading module; the feeding hopper is installed at the discharge end of the unloading module and is connected to the unloading channel of the unloading module through the valve module; a clamping module for clamping and fixing the bag mouth of the ton bag is provided on the outside of the feeding hopper.

2. The feeding mechanism for a ton bag machine according to claim 1, characterized in that, The valve module includes: a valve barrel, a valve plate adapted to the valve barrel, a rotating shaft, a gear, a rack adapted to the gear, and a cylinder; the upper end of the valve barrel is fixedly connected to the discharge end of the unloading module; one end of the rotating shaft is fixedly connected to the gear; the other end of the rotating shaft passes through the side wall of the lower end of the valve barrel and is placed inside the valve barrel, and is fixedly connected to the valve plate; the valve plate is rotatably mounted inside the valve barrel via the rotating shaft; the cylinder is fixedly mounted on the outer wall of the lower end of the valve barrel, and its output end is fixedly connected to the rack; the rack meshes with the gear; the unloading barrel is covered on the outside of the valve barrel.

3. The feeding mechanism for a ton bag machine according to claim 2, characterized in that, The material discharge module includes: a mounting plate, a telescopic hose, and a discharge cylinder; the upper end of the telescopic hose is connected to and communicates with the connecting valve; the upper end of the discharge cylinder passes through the mounting plate and is connected to and communicates with the lower end of the telescopic hose; the valve barrel is installed on the inner side of the lower end of the discharge cylinder; the discharge bucket is fixedly connected to the outer side of the lower end of the discharge cylinder and communicates with the discharge cylinder through the valve barrel; the discharge cylinder is fixedly connected to the mounting plate; the mounting plate is drivenly connected to the output end of the drive module.

4. The feeding mechanism for a ton bag machine according to claim 3, characterized in that, The drive module includes: a drive motor, a worm gear reducer, four lead screw lifting seats, and four lifting lead screws corresponding one-to-one with the four lead screw lifting seats; the four lead screw lifting seats are respectively installed at the four corners of the upper surface of the fixed plate; the lead screw lifting seats are connected in series through a drive shaft and a coupling; the drive motor is installed on the fixed plate, and its output end is connected to the worm gear reducer; the output end of the worm gear reducer is connected to any of the drive shafts; the upper ends of the four lifting lead screws are respectively connected to the four lead screw lifting seats, and their lower ends pass through the fixed plate and are fixedly connected to the four corners of the mounting plate; each of the four lead screw lifting seats is provided with a dust cover corresponding to one of the four lifting lead screws.

5. The feeding mechanism for a ton bag machine according to claim 3, characterized in that, The clamping module includes: a bag-clamping airbag; the upper outer wall of the feeding barrel is provided with a mounting slot; the bag-clamping airbag is mounted on the mounting slot.

6. The feeding mechanism for a ton bag machine according to claim 3, characterized in that, It also includes at least one internal suction pipe for removing powder from the inner wall of the discharge cylinder and the telescopic hose; one end of the internal suction pipe passes through the side wall of the lower end of the discharge cylinder and is placed inside the discharge cylinder, and the other end is connected to and communicates with an external vacuuming device.

7. The feeding mechanism for a ton bag machine according to claim 3, characterized in that, It also includes at least one external suction pipe for cleaning powder from the outer walls of the feeding hopper and the discharge cylinder; one end of the external suction pipe is obliquely installed below the mounting plate via a bracket, and its extended end is provided with a suction hood; the suction hood faces the discharge cylinder and the discharge hopper; the other end of the external suction pipe is connected and communicates with an external suction device.

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