Ton bag feeding device and ton bag packaging machine

Abstract

The present disclosure provides a ton bag feeding device and a ton bag packaging machine. The ton bag feeding device includes a horizontally extending screw conveying mechanism and a crushing mechanism, and a discharge channel is provided at one end of the screw conveying mechanism. The crushing mechanism includes a mobile driving member, a crushing driving member, a crushing claw, and a material blocking net. The crushing driving member is installed at the power output end of the mobile driving member, and the crushing claw is installed at the power output shaft of the crushing driving member. The crushing claw is arranged opposite to the discharge channel, and the material blocking net is connected to the fixed end of the crushing driving member and is located below the crushing claw; wherein, the mobile driving member is used to drive the crushing claw and the material blocking net to move closer to or away from the discharge channel, and the crushing driving member is used to drive the crushing claw to rotate and crush the material. In this way, while ensuring that the loading efficiency remains at a high level, the loading accuracy is improved from the perspective of solving the problem of powder agglomeration.

Description

Technical Field

[0001] The present disclosure relates to the technical field of ton bag packaging machines, and in particular to a ton bag feeding device and a ton bag packaging machine. Background Art

[0002] The ton bag packaging machine is a large-scale weighing and packaging equipment used for packaging materials in ton bags. It is a multi-purpose packaging machine that integrates electronic weighing, automatic bag removal, and dust removal. It features a high degree of automation, high packaging accuracy, adjustable packaging speed, superior structure, and a unique hydraulic lifting system, making ton bag handling particularly easy and convenient for downstream processing. The ton bag packaging machine is suitable for packaging materials in ton bags in the mining, chemical, building materials, grain, and feed industries.

[0003] The ton bag packaging machine includes a spiral feeding mechanism, which is used to transport powder into the ton bag. The spiral feeding mechanism includes horizontally and vertically arranged structures, namely, a ton bag feeding device and a vertical spiral feeding mechanism, among which the ton bag feeding device is often used for feeding powder.

[0004] In the related art, in order to improve the loading accuracy of ton bags, CN115384823A discloses a fully automatic ton bag weight-reducing double-screw feeding and packaging machine, which is designed with a weight-reducing double-screw feeder and fixed based on support blocks, so that the force is more balanced, which can effectively improve the loading accuracy of ton bags; the hopper includes a cylindrical section and a conical section, which can reduce the feeding speed at the end and improve the loading accuracy of ton bags; the ball screw is fixed with bearing seats at both ends, which can improve the stability of movement and avoid errors caused by shaking of ton bags during lifting, thereby improving the loading accuracy.

[0005] CN113844714A discloses a fully automatic ton bag packaging machine, which fixes the inner frame on a platform scale, and sleeves the outer platform frame on the outside of the inner frame. Based on the bag pushing mechanism and the vibration mechanism, it can reduce the occupied area while improving the load-bearing accuracy, thereby improving the loading accuracy.

[0006] CN116424652A discloses a fully automatic packaging machine for solid fluids and an automatic bagging and packaging method. In a bag-mouth fixing and tightening linkage device, four bag-expanding rods are arranged close to the body of a lifting filling cylinder. The four bag-expanding rods can realize a translational action of expanding and opening the bag mouth of a ton bag through a bag-expanding rod operating assembly, which can ensure that the ton bag is completely separated from the bag-mouth fixing and tightening linkage device without contact when the re-weighing is performed after the filling is completed, thereby ensuring the accuracy of the re-weighing and further improving the loading accuracy.

[0007] It should be noted that after diligently performing the creative novelty search of this plan, the following technical literature is also provided for reference:

[0008] 1. CN116534316A-A composite weighing and packaging method for a fully automatic solid fluid packaging machine;

[0009] 2. CN216611817U - A large and small screw conveying mechanism for bulk bag packaging of powder materials;

[0010] 3. CN219134587U-ton bag weight-reducing double-screw feeding packaging machine;

[0011] 4. CN216443911U- fully automatic ton bag packaging machine;

[0012] 5. CN215043854U-ton bag packaging machine.

[0013] However, none of the above-mentioned comparative documents aims to improve the filling accuracy of ton bags from the perspective of solving the problem of powder agglomeration, resulting in that there is still room for improvement in the filling accuracy.

[0014] CN109911259A discloses a ton bag packaging machine, which improves the loading accuracy from the perspective of solving the problem of powder agglomeration. The screw conveyor shaft is provided with crushing blades, which rotate with the screw conveyor shaft to crush the powder, achieve uniform feeding, avoid powder accumulation, and make the powder pass through the discharge port at a uniform speed, which is convenient for the bottom weighing mechanism to perform accurate weighing, thereby improving the loading accuracy.

[0015] However, the crushing blades rotate with the screw conveyor shaft, so that the crushing blades are crushing the material during the entire conveying process. In order to ensure that the broken blades are crushed smoothly, the conveying speed of the screw conveyor mechanism needs to be slower, resulting in a slower unloading speed of the screw conveyor mechanism and a lower loading efficiency of the ton bag.

[0016] Therefore, there is an urgent need for a ton bag feeding device that can improve the filling accuracy from the perspective of solving the problem of powder agglomeration while ensuring that the filling efficiency remains at a high level. Summary of the Invention

[0017] The purpose of the present invention is to overcome the shortcomings of the prior art and provide a ton bag feeding device and a ton bag packaging machine that improve the charging accuracy from the perspective of solving the problem of powder agglomeration while ensuring high charging accuracy.

[0018] The purpose of this disclosure is achieved through the following technical solutions:

[0019] A ton bag feeding device, comprising:

[0020] A horizontally extending spiral conveying mechanism, wherein one end of the spiral conveying mechanism is provided with a discharge channel; and

[0021] The crushing mechanism includes a mobile driving member, a crushing driving member, a crushing claw and a material blocking net, wherein the crushing driving member is installed at the power output end of the mobile driving member, the crushing claw is installed at the power output shaft of the crushing driving member, the crushing claw is arranged opposite to the discharge channel, and the material blocking net is connected to the fixed end of the crushing driving member and is located below the crushing claw; wherein, the mobile driving member is used to drive the crushing claw and the material blocking net to approach or move away from the discharge channel, and the crushing driving member is used to drive the crushing claw to rotate and crush.

[0022] In one embodiment, the crushing claw includes a connecting portion and a scraping portion, the connecting portion is fixedly connected to the power output shaft of the crushing drive member, one end of a plurality of the scraping portions is fixedly connected to the connecting portion, and the plurality of the scraping portions are evenly spaced along the circumference of the connecting portion.

[0023] In one embodiment, the crushing mechanism further includes a blocking assembly, which is connected to the fixed end of the crushing drive member. The blocking assembly is arranged opposite to the discharge channel, and the movable drive member is used to drive the blocking assembly to block the discharge channel after the crushing claw completes crushing.

[0024] In one embodiment, the blocking assembly includes a connecting sleeve and a blocking piece, one end of the connecting sleeve is fixedly connected to the fixed end of the crushing drive member, the connecting sleeve is provided with an avoidance channel, the blocking piece is fixedly connected to the other end of the connecting sleeve, the blocking piece is arranged opposite to the discharge channel, the blocking piece is provided with a clearance hole, the power output shaft of the crushing drive member is passed through the avoidance channel and the clearance hole, and the crushing claw is located on the side of the blocking piece away from the crushing drive member.

[0025] In one embodiment, the crushing mechanism further includes a support bearing, which is located at one end of the connecting sleeve adjacent to the discharge channel and is sleeved in the avoidance channel, and one end of the power output shaft of the crushing drive member is passed through the support bearing and sleeved with the support bearing.

[0026] In one embodiment, the material retaining net is connected to the blocking member, so that the material retaining net is connected to the fixed end of the crushed material driving member through the blocking member and the connecting sleeve.

[0027] In one embodiment, the spiral conveying mechanism includes a shell, a rotating shaft and a spiral blade. The discharge channel is formed at one end of the shell. The rotating shaft rotates in the shell. The spiral blade is located in the shell and is sleeved on the rotating shaft. The pitch of the spiral blade gradually decreases along the conveying direction.

[0028] In one embodiment, the shell includes a feed shell and a discharge shell, the feed shell and the discharge shell are both horizontally extended, the feed shell and the discharge shell are spaced apart, the two ends of the rotating shaft rotate in the feed shell and the discharge shell respectively, the first end of the spiral blade is located in the feed shell, the upper side of the feed shell is provided with a feed port, and the discharge channel is formed at one end of the discharge shell away from the feed shell;

[0029] The ton bag feeding device further includes a degassing component, which is sleeved on the second end of the spiral blade, and the two ends of the degassing component are respectively connected to the feed shell and the discharge shell.

[0030] In one embodiment, the degassing assembly includes a mounting sleeve and a filter assembly, the mounting sleeve is arranged on the second end of the spiral blade, the two ends of the mounting sleeve are respectively connected to the feed shell and the discharge shell, a filter tank is formed in the mounting sleeve and is arranged toward the second end of the spiral blade, the filter assembly is arranged in the filter tank, and an air outlet hole connected to the filter tank is formed on the outer side of the mounting sleeve.

[0031] In one embodiment, the filter assembly includes a retaining grid and a filter layer structure, two retaining grids are located in the filter tank and connected to the mounting sleeve, and the filter layer structure is clamped between the two retaining grids.

[0032] In one embodiment, the filter layer structure is stainless steel sintered felt.

[0033] In one embodiment, the ton bag feeding device also includes a feeding mechanism, which forms a feeding channel. A first avoidance hole and a second avoidance hole are respectively opened on opposite sides of the feeding mechanism. The first avoidance hole and the second avoidance hole are arranged opposite to each other and are respectively connected to the feeding channel. The output end of the spiral conveying mechanism is passed through the first avoidance hole, the movable driving component is installed on the feeding mechanism, and the power output shaft of the crushing driving component is also passed through the second avoidance hole.

[0034] A ton bag packaging machine includes the above-mentioned ton bag feeding device, and the ton bag packaging machine also includes a lifting and clamping mechanism, the lifting and clamping mechanism forms a discharge channel, the lower end of the discharge mechanism is located in the discharge channel, the lifting and clamping mechanism is used to clamp the ton bag, so that the discharge channel is used to communicate with the ton bag.

[0035] In one embodiment, the lifting and clamping mechanism includes:

[0036] Lifting frame;

[0037] A discharge cylinder is fixedly connected to the lifting frame, the upper end of the discharge cylinder is sleeved on the lower end of the discharge mechanism, and a gap is formed between the discharge cylinder and the outer wall of the discharge mechanism. The discharge channel is formed in the discharge cylinder, and the lower end of the discharge cylinder is used to penetrate the feeding end of the ton bag; and

[0038] A clamping assembly is fixedly connected to the lifting frame, and the clamping assembly is used to clamp the feeding end of the ton bag on the outer side of the discharge barrel.

[0039] In one embodiment, the lifting and clamping mechanism also includes a negative pressure sealing sleeve, which is fixedly mounted on the upper end of the discharge barrel, and a negative pressure hole is formed on the outer side of the negative pressure sealing sleeve. A first sealing channel is formed between the inner side of the discharge barrel and the outer side of the discharge mechanism, and a second sealing channel is formed between the outer side of the discharge barrel and the inner side of the negative pressure sealing sleeve. The second sealing channel is connected to the negative pressure hole, and an air passage is provided between the upper end of the discharge barrel and the upper end of the negative pressure sealing sleeve, so that the first sealing channel is connected to the second sealing channel through the air passage.

[0040] Compared with the prior art, the present disclosure has at least the following advantages:

[0041] 1. First, the powder is conveyed through the spiral conveyor. When the weight of the powder in the ton bag approaches a preset value, or critical value, the spiral conveyor stops conveying. Through the cooperation of the mobile drive and the crushing drive, the crushing claws scrape off the bulk powder extending outside the discharge channel, breaking up the bulk powder outside the discharge channel. The broken powder falls onto the retaining net, is blocked by the retaining net, and then passes through the mesh of the retaining net into the ton bag. Because the powder at the output end of the spiral conveyor becomes compacted and lumpy, that is, the closer to the discharge channel, the compacter the powder. The spiral conveyor stops only when the weight of the powder in the ton bag approaches the critical value. Therefore, the powder feeding efficiency is high, which keeps the filling efficiency of the ton bag at a high level. Furthermore, when the powder weight in the ton bag approaches a critical value, the crushing claws break up the powder, and the retaining net blocks the powder, eliminating the problem of powder clumping. This significantly reduces the powder discharge rate, and the filling speed of the ton bag in the final stage, improving the controllability of the ton bag filling amount and the filling accuracy of the ton bag. In this way, while ensuring that the filling efficiency of the ton bag remains at a high level, the filling accuracy is improved by solving the problem of powder clumping, resulting in a high filling accuracy of the ton bag.

[0042] 2. When the cutting thickness of the crushing claws is accidentally adjusted too large, the crushing claws will scrape off a large piece of powder. The material blocking net can block the large piece of powder to prevent it from entering the feeding channel, thereby avoiding the adverse effect of large pieces of powder on the charging accuracy, so that the charging speed can be significantly reduced to ensure the controllability of the charging amount. BRIEF DESCRIPTION OF THE DRAWINGS

[0043] In order to more clearly illustrate the technical solutions of the embodiments of the present disclosure, the following briefly introduces the drawings required for use in the embodiments. It should be understood that the following drawings only illustrate certain embodiments of the present disclosure and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other relevant drawings can be obtained based on these drawings without creative work.

[0044] Figure 1 This is a structural diagram of a ton bag packaging machine according to an embodiment;

[0045] Figure 2 for Figure 1 The partial structural diagram of the ton bag packaging machine shown in FIG.

[0046] Figure 3 for Figure 2 One of the cross-sectional views of the bulk bag packaging machine along line AA is shown;

[0047] Figure 4 for Figure 3 The enlarged schematic diagram of the bulk bag packaging machine at point B is shown;

[0048] Figure 5 for Figure 2 The second cross-sectional view of the bulk bag packaging machine along line AA is shown;

[0049] Figure 6 for Figure 5 The enlarged schematic diagram of the bulk bag packaging machine at position C is shown;

[0050] Figure 7 for Figure 5 An enlarged schematic diagram of the ton bag packaging machine at position D;

[0051] Figure 8 for Figure 1 A partial cross-sectional view of a bulk bag packaging machine is shown;

[0052] Figure 9 for Figure 1 Another partial cross-sectional view of the bulk bag packaging machine shown;

[0053] Figure 10 for Figure 1 Another partial cross-sectional view of the bulk bag packaging machine is shown.

[0054] Reference numerals: ton bag packaging machine 10; ton bag feeding device 10a; screw conveying mechanism 100; housing 110; feeding housing 110a; feeding port 1111; discharging housing 110b; discharging channel 101; rotating shaft 120; spiral blade 130; crushing mechanism 200; moving driving member 210; crushing driving member 220; crushing claw 230; connecting portion 231; scraping portion 232; material blocking net 240; blocking assembly 250; connecting sleeve 251; avoidance channel 2511; avoidance hole 2521; blocking member 252; support bearing 260; unloading mechanism 300; unloading channel 301; first avoidance hole 302; The second avoidance hole 303; the degassing component 400; the mounting sleeve 410; the filter tank 411; the air outlet 412; the filter component 420; the retaining frame 421; the filter layer structure 422; the lifting and clamping mechanism 500; the lifting frame 510; the discharge barrel 520; the discharge channel 501; the first sealing channel 522; the second sealing channel 523; the accumulation trough 5231; the air passage 524; the feed hole 525; the clamping assembly 530; the negative pressure sealing sleeve 540; the negative pressure hole 541; the penetration hole 542; the switch valve 550; the cylinder 551; the sealing element 552; the abutment sheet 5521; the elastic gasket 5522; the elastic sealing sleeve 553. DETAILED DESCRIPTION

[0055] To facilitate understanding of the present disclosure, a more comprehensive description of the present disclosure will be provided below with reference to the accompanying drawings. The accompanying drawings illustrate preferred embodiments of the present disclosure. However, the present disclosure can be implemented in many different forms and is not limited to the embodiments described herein. Rather, these embodiments are provided to provide the reader with a more thorough and comprehensive understanding of the present disclosure.

[0056] It should be noted that when an element is referred to as being "fixed to" another element, it may be directly attached to the other element or there may be an intermediate element. When an element is referred to as being "connected to" another element, it may be directly connected to the other element or there may be an intermediate element. The terms "vertical," "horizontal," "left," "right," and similar expressions used herein are for illustrative purposes only and do not represent the only implementation methods.

[0057] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by those skilled in the art to which this disclosure pertains. The terms used herein in the specification of this disclosure are intended only to describe specific embodiments and are not intended to limit this disclosure. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.

[0058] like Figures 1 to 4As shown, a ton bag packaging machine 10 according to one embodiment includes a ton bag feeding device 10a. In one embodiment, the ton bag feeding device 10a includes a screw conveying mechanism 100 and a crushing mechanism 200. The screw conveying mechanism 100 extends horizontally, and a discharge channel 101 is defined at one end of the screw conveying mechanism 100. Powdered material from the screw conveying mechanism 100 is discharged through the discharge channel 101. The crushing mechanism 200 includes a moving drive 210, a crushing drive 220, a crushing claw 230, and a material retaining net 240. The crushing drive 220 is mounted at the power output end of the moving drive 210. The crushing claw 230 is mounted on the power output shaft of the crushing drive 220. The crushing claw 230 is positioned opposite the discharge channel 101. The material retaining net 240 is connected to the fixed end of the crushing drive 220 and is located below the crushing claw 230. The moving driving member 210 is used to drive the crushing claw 230 and the material blocking net 240 to move closer to or away from the discharge channel 101 , and the crushing driving member 220 is used to drive the crushing claw 230 to rotate and crush the material.

[0059] like Figure 3 and Figure 4 As shown, in this embodiment, the powder is conveyed by the spiral conveying mechanism 100, and the powder at the output end of the spiral conveying mechanism 100 becomes compacted and forms blocks. When the ton bag feeding device 10a is working, the powder is pushed to move toward the discharge channel 101 by the spiral conveying mechanism 100, so that the powder forms block powder and falls into the ton bag after passing through the discharge channel 101. At this time, the crushing claws 230 and the material blocking net 240 are staggered with the falling movement path of the powder to avoid the crushing claws 230 and the material blocking net 240 interfering with the falling of the powder; when the weight of the material in the ton bag approaches the preset value, the spiral conveying mechanism 100 stops conveying, and part of the block powder extends out of the discharge channel 101. The mobile driving member 210 drives the crushing driving member 220 to move toward the discharge channel 101, so that the crushing driving member 2 20 drives the crushing claw 230 to contact the block powder. At this time, the material blocking net 240 is still below the crushing claw 230. Then the crushing driving part 220 drives the crushing claw 230 to rotate, so that the crushing claw 230 scrapes the block powder, that is, breaks up the block powder, and the broken powder falls to the material blocking net 240. After passing through the material blocking net 240, the powder falls into the ton bag. While the crushing claw 230 is scraping the material, the mobile driving part 210 can also drive the crushing claw 230 to move toward the discharge channel 101 to adjust the cutting depth of the crushing claw 230; when the material weight of the ton bag reaches the preset value, the crushing driving part 220 stops driving the crushing claw 230.

[0060] The aforementioned ton bag packaging machine 10 and ton bag feeding device 10a first convey powder through the screw conveying mechanism 100. When the weight of the powder in the ton bag approaches a preset value, i.e., a critical value, the screw conveying mechanism 100 stops conveying. By cooperating with the moving drive member 210 and the crushing drive member 220, the crushing claws 230 scrape off the bulk powder extending outside the discharge channel 101, i.e., break up the bulk powder outside the discharge channel 101. The broken-up powder falls onto the material blocking net 240. After being blocked by the material blocking net 240, the powder passes through the mesh of the material blocking net 240 and enters the ton bag. Since the powder at the output end of the screw conveying mechanism 100 becomes compacted and forms a bulk, i.e., the closer the powder is to the discharge channel, the compacter it is, and the screw conveying mechanism 100 stops only when the weight of the powder in the ton bag approaches the critical value, the powder feeding efficiency is high, so that the filling efficiency of the ton bag is maintained at a high level. Moreover, when the weight of the powder in the ton bag approaches a critical value, the powder is broken up by the crushing claws 230 and blocked by the material blocking net 240, thus resolving the problem of powder clumping. This significantly reduces the powder discharge speed and the loading speed of the ton bag in the final stage, improving the controllability of the ton bag's loading amount and improving the loading accuracy of the ton bag. In this way, while ensuring that the loading efficiency of the ton bag remains at a high level, the loading accuracy is improved by resolving the problem of powder clumping, resulting in a higher loading accuracy of the ton bag. In addition, if the cutting thickness of the crushing claws 230 is accidentally adjusted too large, the crushing claws 230 will scrape off a large piece of powder. The material blocking net 240 can block the large piece of powder to prevent it from entering the discharge channel 301, thereby preventing the adverse effects of large pieces of powder on the loading accuracy, and significantly reducing the loading speed to ensure the controllability of the loading amount.

[0061] like Figure 3 and Figure 4 As shown, in one embodiment, the ton bag feeding device 10a further includes a discharge mechanism 300, which is formed with a discharge channel 301. A first avoidance hole 302 and a second avoidance hole 303 are respectively formed on opposite sides of the discharge mechanism 300. The first avoidance hole 302 and the second avoidance hole 303 are arranged opposite each other and are respectively connected to the discharge channel 301. The output end of the spiral conveying mechanism 100 is passed through the first avoidance hole 302, the mobile drive member 210 is installed on the discharge mechanism 300, and the power output shaft of the crushing drive member 220 is also passed through the second avoidance hole 303. In this embodiment, the powder leaving the discharge channel 101 falls into the discharge channel 301, and then falls into the ton bag through the discharge channel 301. The discharge of the powder is guided by the discharge channel 301 to ensure that the powder enters the ton bag smoothly.

[0062] like Figure 4As shown, in one embodiment, the moving drive member 210 is a linear motor, an electric cylinder or other existing linear motion drive members. In one embodiment, the crushing drive member 220 is a rotary motor, a hydraulic motor or other existing rotary drive members.

[0063] like Figure 4 As shown, in one embodiment, the crushing claw 230 includes a connecting portion 231 and a scraping portion 232. The connecting portion 231 is fixedly connected to the power output shaft of the crushing drive 220. One end of a plurality of scraping portions 232 is fixedly connected to the connecting portion 231, and the plurality of scraping portions 232 are evenly spaced along the circumference of the connecting portion 231. In this embodiment, the power output shaft of the crushing drive 220 drives the connecting portion 231 to rotate, and the connecting portion 231 drives the plurality of scraping portions 232 to rotate and crush the material.

[0064] like Figure 4 and Figure 6 As shown, in one embodiment, the crushing mechanism 200 further includes a blocking assembly 250 connected to the fixed end of the crushing drive member 220. The blocking assembly 250 is disposed opposite the discharge channel 101. The mobile drive member 210 is used to drive the blocking assembly 250 to block the discharge channel 101 after the crushing claws 230 complete crushing. In this embodiment, after the ton bag is filled, the crushing claws 230 stop scraping the material, and the mobile drive member 210 drives the crushing drive member 220 to move toward the discharge channel 101. The blocking assembly 250 and the crushing claws 230 jointly press the powder extending outside the discharge channel 101 into the discharge channel 101, and the blocking assembly 250 blocks the discharge channel 101 to prevent the powder from falling.

[0065] like Figure 6 As shown, in one embodiment, the blocking assembly 250 includes a connecting sleeve 251 and a blocking member 252. One end of the connecting sleeve 251 is fixedly connected to the fixed end of the crushing drive member 220. The connecting sleeve 251 is provided with an avoidance channel 2511. The blocking member 252 is fixedly connected to the other end of the connecting sleeve 251. The blocking member 252 is arranged opposite to the discharge channel 101. The blocking member 252 is provided with a clearance hole 2521. The power output shaft of the crushing drive member 220 is passed through the avoidance channel 2511 and the clearance hole 2521. The crushing claw 230 is located on the side of the blocking member 252 away from the crushing drive member 220.

[0066] like Figure 6As shown, in one embodiment, the shredder mechanism 200 further includes a support bearing 260. The support bearing 260 is located at one end of the connecting sleeve 251 adjacent to the discharge channel 101 and is sleeved within the avoidance channel 2511. One end of the power output shaft of the shredder drive 220 is passed through and sleeved with the support bearing 260. In this embodiment, the sleeved engagement of one end of the power output shaft of the shredder drive 220 with the support bearing 260 improves the rotational stability of the power output shaft of the shredder drive 220.

[0067] like Figure 6 As shown, in one embodiment, the material retaining net 240 is connected to the blocking member 252 , so that the material retaining net 240 is connected to the fixed end of the crushing material driving member 220 through the blocking member 252 and the connecting sleeve 251 .

[0068] like Figure 5 As shown, in one embodiment, the screw conveying mechanism 100 includes a housing 110, a rotating shaft 120, and a spiral blade 130. The discharge channel 101 is formed at one end of the housing 110. The rotating shaft 120 rotates within the housing 110. The spiral blade 130 is located within the housing 110 and is sleeved on the rotating shaft 120. The pitch of the spiral blade 130 gradually decreases along the conveying direction, so that the powder gradually becomes compacted along the conveying direction of the spiral blade 130, making the powder discharged from the discharge channel 101 more compact. In this embodiment, because the powder discharged from the discharge channel 101 is more compact, when the screw conveying mechanism 100 stops, the powder extending outside the discharge channel 101 is more compact, preventing the powder extending from the discharge channel 101 from falling due to gravity, thereby ensuring the filling accuracy of the ton bag.

[0069] like Figure 5 and Figure 6 As shown, in one embodiment, the housing 110 includes a feed housing 110a and a discharge housing 110b. Both the feed housing 110a and the discharge housing 110b extend horizontally and are spaced apart. The ends of the rotating shaft 120 rotate within the feed housing 110a and the discharge housing 110b, respectively. The first end of the spiral blade 130 is located within the feed housing 110a. A feed port 1111 is defined on the upper side of the feed housing 110a. The discharge channel 101 is formed at the end of the discharge housing 110b facing away from the feed housing 110a. The ton bag feeding device 10a also includes a degassing assembly 400, which is mounted on the second end of the spiral blade 130 and connected to the feed housing 110a and the discharge housing 110b, respectively. In this embodiment, the powder becomes gradually compacted along the conveying direction of the spiral conveying mechanism 100 , resulting in the generation of air in the powder. The air is discharged to the outside through the degassing assembly 400 .

[0070] Please refer to Figure 5 、 Figure 7 as well as Figure 1 In one embodiment, the degassing assembly 400 includes a mounting sleeve 410 and a filter assembly 420. The mounting sleeve 410 is mounted on the second end of the spiral blade 130. The ends of the mounting sleeve 410 are connected to the feed housing 110a and the discharge housing 110b, respectively. A filter slot 411 is formed within the mounting sleeve 410, facing the second end of the spiral blade 130. The filter assembly 420 is disposed within the filter slot 411. An air outlet 412 is formed on the outer side of the mounting sleeve 410 and communicates with the filter slot 411. In this embodiment, air exhausted from the spiral conveying mechanism 100 is filtered by the filter assembly 420 before being discharged. This prevents powder from being discharged with the air and thus suppresses dust generation.

[0071] like Figure 7 As shown, in one embodiment, the filter assembly 420 further includes a retaining frame 421 and a filter layer structure 422. Both retaining frames 421 are located within the filter tank 411 and connected to the mounting sleeve 410. The filter layer structure 422 is clamped between the two retaining frames 421. In this embodiment, the filter layer structure 422 is clamped between the two retaining frames 421. Dust passes through the inner retaining frame 421 and enters the filter layer structure 422. After being filtered by the filter layer structure 422, dust passes through the outer retaining frame 421 and the air outlet 412.

[0072] In one embodiment, the filter layer structure 422 is a stainless steel sintered felt. In this embodiment, the stainless steel sintered felt is corrosion-resistant, so that the screw conveying mechanism 100 can be used to convey highly corrosive powders.

[0073] like Figure 8 As shown, in one embodiment, the ton bag packaging machine 10 further includes a lifting and clamping mechanism 500. The lifting and clamping mechanism 500 is formed with a discharge channel 501. The lower end of the discharge mechanism 300 is located within the discharge channel 501. The lifting and clamping mechanism 500 is used to clamp the ton bag, allowing the discharge channel 501 to communicate with the ton bag. In this embodiment, powder in the discharge channel 301 of the discharge mechanism 300 falls into the discharge channel 501, and the powder in the discharge channel 501 falls into the ton bag.

[0074] like Figure 8As shown, in one embodiment, the lifting and clamping mechanism 500 includes a lifting frame 510, a discharge barrel 520, and a clamping assembly 530. The discharge barrel 520 is fixedly connected to the lifting frame 510. The upper end of the discharge barrel 520 is sleeved on the lower end of the discharge mechanism 300. There is a gap between the discharge barrel 520 and the outer wall of the discharge mechanism 300 to prevent the discharge barrel 520 from interfering with the discharge mechanism 300 when the discharge barrel 520 moves up and down. The discharge channel 501 is formed in the discharge barrel 520. The lower end of the discharge barrel 520 is used to pass through the feeding end of the ton bag 20, so that the discharge channel 501 is connected to the interior of the ton bag 20. The clamping assembly 530 is fixedly connected to the lifting frame 510 and is used to clamp the feeding end of the ton bag 20 on the outer side surface of the discharge barrel 520, so that the feeding end of the ton bag 20 is fixedly sleeved on the lower end of the discharge barrel 520.

[0075] like Figure 8 As shown, in this embodiment, before the ton bag 20 is loaded, the feed end of the ton bag 20 is first sleeved on the lower end of the discharge barrel 520, and the hanging ear of the ton bag 20 is hung on the lifting frame 510, and then the feed end of the ton bag 20 is clamped on the lower end of the discharge barrel 520 by the clamping assembly 530, so that the feed end of the ton bag 20 is fixedly sleeved on the lower end of the discharge barrel 520, and then the lifting frame 510 rises to raise the discharge barrel 520 to drive the ton bag 20 to leave the support platform, and then the ton bag 20 is loaded; when the ton bag 20 is loaded, the lifting frame 510 descends to place the ton bag 20 on the support platform, and then the clamping assembly 530 releases the ton bag 20, and then the hanging ear of the ton bag 20 is separated from the lifting frame 510, and finally the ton bag 20 is removed.

[0076] It can be understood that the discharge barrel 520 is fixedly connected to the lifting frame 510, and the discharge barrel 520 is sleeved on the lower end of the unloading mechanism 300. The lifting frame 510 needs to move up and down during operation. Therefore, in order to ensure the smooth up and down movement of the lifting frame 510, there is a gap between the inner wall of the discharge barrel 520 and the outer wall of the unloading mechanism 300, which will cause the space between the discharge barrel 520 and the unloading mechanism 300 to be open, causing dust to leak through the gap, resulting in a decrease in the loading accuracy of the ton bag and generating a large amount of dust to pollute the environment.

[0077] To solve the above leakage problem, Figure 8 and Figure 9As shown, in one embodiment, the lifting and clamping mechanism 500 also includes a negative pressure sealing sleeve 540, which is fixedly mounted on the upper end of the discharge barrel 520. There is a gap between the negative pressure sealing sleeve 540 and the discharge mechanism 300 to avoid interference between the negative pressure sealing sleeve 540 and the discharge mechanism 300. A negative pressure hole 541 is formed on the outer side of the negative pressure sealing sleeve 540, and a first sealing channel 522 is formed between the inner side of the discharge barrel 520 and the outer side of the discharge mechanism 300. A second sealing channel 523 is formed between the outer side of the discharge barrel 520 and the inner side of the negative pressure sealing sleeve 540. The second sealing channel 523 is connected to the negative pressure hole 541. An air passage 524 is provided between the upper end of the discharge barrel 520 and the upper end of the negative pressure sealing sleeve 540, so that the first sealing channel 522 is connected to the second sealing channel 523 through the air passage 524.

[0078] like Figure 9 As shown, in this embodiment, as the powder falls, negative pressure is applied to the negative pressure hole 541, causing the dust to flow from the lower opening of the discharge channel 301 to the first sealed channel 522, then flow upward along the first sealed channel 522, then flow sequentially to the air passage 524 and the second sealed channel 523, then flow downward along the second sealed channel 523, and finally be discharged through the negative pressure hole 541. Because the dust discharged from the discharge channel 301 first flows upstream along the first sealed channel 522, most of the dust falls into the ton bag 20 under the action of gravity, and only a small amount of upstream dust is discharged to the outside through the air passage 524, the second sealed channel 523, and the negative pressure hole 541 in sequence. In this way, the loss of powder is reduced and the filling accuracy of the ton bag 20 is improved.

[0079] It can be understood that although there is a gap between the negative pressure sealing sleeve 540 and the unloading mechanism 300, since the internal and external pressure difference at the gap is significantly smaller than the internal and external pressure difference of the negative pressure hole 541, the dust is discharged through the negative pressure hole 541 and processed centrally, instead of being discharged through the gap, which reduces the amount of dust and improves the dust prevention effect.

[0080] like Figure 9 As shown, in one embodiment, a material accumulation trough 5231 is formed at the bottom of the second sealed channel 523, and the material accumulation trough 5231 is staggered with the negative pressure hole 541. In this embodiment, as dust flows downward along the second sealed channel 523, due to the weight of the powder being greater than the weight of the gas, some of the powder will fall into the material accumulation trough 5231, thereby reducing the amount of powder discharged through the negative pressure hole 541, thereby reducing dust and improving the dust prevention effect.

[0081] like Figure 10As shown, the bottom wall of the material accumulation trough 5231 is an inclined surface, which is tilted downward toward the discharge barrel 520. The outer wall of the discharge barrel 520 is provided with a feed hole 525, which is connected to the material accumulation trough 5231 and the first sealed channel 522. The lifting and clamping mechanism 500 also includes an on-off valve 550, which is located at a position corresponding to the feed hole 525 and is used to control the opening and closing of the feed hole 525. In this embodiment, when the weight of the ton bag reaches a preset value, the unloading mechanism 300 is closed, the unloading channel 301 no longer unloads material, and the negative pressure of the negative pressure hole 541 is closed. At this time, part of the powder volume exists in the accumulation trough 5231, and then the switch valve 550 is opened to connect the accumulation trough 5231 with the first sealed channel 522 through the feed hole 525, so that the accumulated material falls along the inclined surface to the first sealed channel 522, and then falls into the ton bag from the first sealed channel 522, thereby avoiding a small amount of powder not being loaded into the ton bag, improving the loading accuracy of the ton bag, and reducing the waste of powder.

[0082] like Figure 10 As shown, the switch valve 550 further includes a cylinder 551 and a sealing member 552. The cylinder 551 is mounted on the outside of the negative pressure sealing sleeve 540. The negative pressure sealing sleeve 540 also defines an insertion hole 542. The piston rod of the cylinder 551 is movably inserted into the insertion hole 542 and is sealed to the inner wall of the insertion hole 542. The sealing member 552 is connected to one end of the piston rod. The sealing member 552 is also located in the first sealing channel 522 and is disposed corresponding to the feed hole 525. The sealing member 552 is also used to abut the inner wall of the discharge barrel 520 to seal the feed hole 525. When the on-off valve 550 is opened, the piston rod of the cylinder 551 pushes the seal 552 away from the inner wall of the discharge barrel 520, allowing the accumulation trough 5231 to communicate with the first sealed channel 522 through the feed hole 525. The accumulated material in the accumulation trough 5231 then falls along the inclined surface into the first sealed channel 522, and then falls into the ton bag through the first sealed channel 522. When the on-off valve 550 is closed, the piston rod of the cylinder 551 pulls the seal 552 against the inner wall of the discharge barrel 520, causing the seal 552 to seal the feed hole 525.

[0083] like Figure 10 As shown, in one embodiment, the switch valve 550 also includes an elastic sealing sleeve 553, which is fixedly connected to the penetration hole 542, and the piston rod is movably inserted into the elastic sealing sleeve 553. The inner and outer sides of the elastic sealing sleeve 553 are respectively in contact with the piston rod and the inner wall of the penetration hole 542, so that the piston rod is sealed with the inner wall of the penetration hole 542 through the elastic sealing sleeve 553 to prevent dust from leaking through the penetration hole 542.

[0084] like Figure 10As shown, in one embodiment, the sealing member 552 includes an abutment piece 5521 and an elastic gasket 5522. The abutment piece 5521 is located in the first sealing channel 522 and fixedly connected to one end of the piston rod of the cylinder 551. The elastic gasket 5522 is located in the first sealing channel 522 and is also fixedly connected to a side of the abutment piece 5521 adjacent to the piston rod. In this embodiment, when it is necessary to seal the feed hole 525, the piston rod of the cylinder 551 pulls the abutment piece 5521, causing the abutment piece 5521 to drive the elastic gasket 5522 to abut against the inner wall of the discharge barrel 520 to seal the feed hole 525. When it is necessary to open the feed hole 525, the piston rod of the cylinder 551 pushes the abutment piece 5521, causing the abutment piece 5521 to drive the elastic gasket 5522 to separate from the inner wall of the discharge barrel 520.

[0085] Compared with the prior art, the present disclosure has at least the following advantages:

[0086] 1. First, the powder is conveyed through the screw conveying mechanism 100. When the weight of the powder in the ton bag approaches a preset value, i.e., a critical value, the screw conveying mechanism 100 stops conveying. Through the cooperation of the mobile driving member 210 and the crushing driving member 220, the crushing claws 230 scrape off the bulk powder extending outside the discharge channel 101, that is, break up the bulk powder outside the discharge channel 101. The broken-up powder falls onto the material blocking net 240. After being blocked by the material blocking net 240, the powder passes through the mesh of the material blocking net 240 and enters the ton bag. Because the powder at the output end of the screw conveying mechanism 100 becomes compacted and forms lumps, that is, the closer the powder is to the discharge channel, the compacter it is, and the screw conveying mechanism 100 does not stop until the weight of the powder in the ton bag approaches the critical value, the powder feeding efficiency is high, which keeps the filling efficiency of the ton bag at a high level. Furthermore, when the powder weight of the ton bag approaches a critical value, the powder is broken up by the crushing claws 230 and blocked by the material blocking net 240, thus resolving the problem of powder clumping. This significantly reduces the powder feeding speed and the filling speed of the ton bag in the final stage, improving the controllability of the ton bag filling amount and the filling accuracy of the ton bag. In this way, while ensuring that the filling efficiency of the ton bag remains at a high level, the filling accuracy is improved by solving the problem of powder clumping, resulting in a high filling accuracy of the ton bag.

[0087] 2. When the cutting thickness of the crushing claw 230 is accidentally adjusted to be too large, the crushing claw 230 will scrape off a large piece of powder. The material blocking net 240 can block the large piece of powder to prevent the large piece of powder from entering the discharge channel 301, thereby avoiding the adverse effect of the large piece of powder on the charging accuracy, so that the charging speed can be significantly reduced to ensure the controllability of the charging amount.

[0088] The above-described embodiments merely represent several implementation methods of the present disclosure. While the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the disclosed patent. It should be noted that a person of ordinary skill in the art may make various modifications and improvements without departing from the scope of the present disclosure, all of which fall within the scope of protection of the present disclosure. Therefore, the scope of protection of the disclosed patent shall be determined by the appended claims.

Claims

1. A ton bag feeding device, characterized in that: include: A horizontally extending spiral conveying mechanism, one end of which is provided with a discharge channel; as well as The crushing mechanism includes a mobile driving member, a crushing driving member, a crushing claw and a material blocking net, wherein the crushing driving member is installed at the power output end of the mobile driving member, the crushing claw is installed at the power output shaft of the crushing driving member, the crushing claw is arranged opposite to the discharge channel, and the material blocking net is connected to the fixed end of the crushing driving member and is located below the crushing claw; wherein, the mobile driving member is used to drive the crushing claw and the material blocking net to approach or move away from the discharge channel, and the crushing driving member is used to drive the crushing claw to rotate and crush.

2. The ton bag feeding device according to claim 1, characterized in that: The crushing claw includes a connecting portion and a scraping portion, the connecting portion is fixedly connected to the power output shaft of the crushing drive member, one end of a plurality of the scraping portions is fixedly connected to the connecting portion, and the plurality of the scraping portions are evenly spaced along the circumference of the connecting portion.

3. The ton bag feeding device according to claim 1, characterized in that: The crushing mechanism also includes a blocking component, which is connected to the fixed end of the crushing drive member. The blocking component is arranged opposite to the discharge channel. The mobile drive member is used to drive the blocking component to block the discharge channel after the crushing claw completes crushing.

4. The ton bag feeding device according to claim 3, characterized in that: The blocking assembly includes a connecting sleeve and a blocking piece. One end of the connecting sleeve is fixedly connected to the fixed end of the crushing drive member. The connecting sleeve is provided with an avoidance channel. The blocking piece is fixedly connected to the other end of the connecting sleeve. The blocking piece is arranged opposite to the discharge channel. The blocking piece is provided with a clearance hole. The power output shaft of the crushing drive member is passed through the avoidance channel and the clearance hole. The crushing claw is located on the side of the blocking piece away from the crushing drive member.

5. The ton bag feeding device according to claim 4, characterized in that: The crushing mechanism also includes a support bearing, which is located at one end of the connecting sleeve adjacent to the discharge channel and is sleeved in the avoidance channel. One end of the power output shaft of the crushing drive component is passed through the support bearing and sleeved with the support bearing.

6. The ton bag feeding device according to claim 4, characterized in that: The material blocking net is connected to the blocking member, so that the material blocking net is connected to the fixed end of the crushed material driving member through the blocking member and the connecting sleeve.

7. The ton bag feeding device according to claim 1, characterized in that: The spiral conveying mechanism includes a shell, a rotating shaft and a spiral blade. The discharge channel is formed at one end of the shell. The rotating shaft rotates in the shell. The spiral blade is located in the shell and is sleeved on the rotating shaft. The pitch of the spiral blade gradually decreases along the conveying direction.

8. The ton bag feeding device according to claim 7, characterized in that: The outer shell includes a feed shell and a discharge shell, the feed shell and the discharge shell are both horizontally extended, the feed shell and the discharge shell are spaced apart, the two ends of the rotating shaft rotate in the feed shell and the discharge shell respectively, the first end of the spiral blade is located in the feed shell, the upper side of the feed shell is provided with a feed port, and the discharge channel is formed at one end of the discharge shell away from the feed shell; The ton bag feeding device further includes a degassing component, which is sleeved on the second end of the spiral blade, and the two ends of the degassing component are respectively connected to the feed shell and the discharge shell.

9. The ton bag feeding device according to claim 8, characterized in that: The degassing assembly includes a mounting sleeve and a filter assembly. The mounting sleeve is arranged on the second end of the spiral blade. The two ends of the mounting sleeve are respectively connected to the feed shell and the discharge shell. A filter tank is formed in the mounting sleeve and is arranged toward the second end of the spiral blade. The filter assembly is arranged in the filter tank. An air outlet hole connected to the filter tank is formed on the outer side of the mounting sleeve.

10. The ton bag feeding device according to claim 9, characterized in that: The filter assembly includes a retaining grid and a filter layer structure. Two retaining grids are both located in the filter tank and connected to the mounting sleeve. The filter layer structure is clamped between the two retaining grids.

11. The ton bag feeding device according to claim 10, characterized in that: The filter layer structure is stainless steel sintered felt.

12. The ton bag feeding device according to claim 1, characterized in that: The ton bag feeding device also includes a feeding mechanism, which forms a feeding channel. A first avoidance hole and a second avoidance hole are respectively opened on opposite sides of the feeding mechanism. The first avoidance hole and the second avoidance hole are arranged opposite to each other and are respectively connected to the feeding channel. The output end of the spiral conveying mechanism is passed through the first avoidance hole, the movable driving component is installed on the feeding mechanism, and the power output shaft of the crushing driving component is also passed through the second avoidance hole.

13. A ton bag packaging machine, characterized in that: Including the ton bag feeding device according to claim 12, the ton bag packaging machine also includes a lifting and clamping mechanism, the lifting and clamping mechanism forms a discharge channel, the lower end of the discharge mechanism is located in the discharge channel, the lifting and clamping mechanism is used to clamp the ton bag, so that the discharge channel is used to communicate with the ton bag.

14. The ton bag packaging machine according to claim 13, characterized in that: The lifting and clamping mechanism comprises: Lifting frame; A discharge cylinder is fixedly connected to the lifting frame, the upper end of the discharge cylinder is sleeved on the lower end of the discharge mechanism, and a gap is formed between the discharge cylinder and the outer wall of the discharge mechanism. The discharge channel is formed in the discharge cylinder, and the lower end of the discharge cylinder is used to penetrate the feeding end of the ton bag; and A clamping assembly is fixedly connected to the lifting frame, and the clamping assembly is used to clamp the feeding end of the ton bag on the outer side of the discharge barrel.

15. The ton bag packaging machine according to claim 14, characterized in that: The lifting and clamping mechanism also includes a negative pressure sealing sleeve, which is fixedly mounted on the upper end of the discharge barrel, and a negative pressure hole is formed on the outer side of the negative pressure sealing sleeve. A first sealing channel is formed between the inner side of the discharge barrel and the outer side of the discharge mechanism, and a second sealing channel is formed between the outer side of the discharge barrel and the inner side of the negative pressure sealing sleeve. The second sealing channel is connected to the negative pressure hole, and an air passage is provided between the upper end of the discharge barrel and the upper end of the negative pressure sealing sleeve, so that the first sealing channel is connected to the second sealing channel through the air passage.

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