Anti-swing ton bag grabbing machine

Abstract

This invention relates to an anti-sway ton bag grabber, comprising: a conveying assembly for conveying a pallet carrying ton bags; a transfer assembly including a transfer frame, a movable frame movably disposed on top of the transfer frame, and an anti-sway mechanism disposed between the transfer frame and the movable frame; a telescopic assembly fixed to the top of the movable frame, comprising an outer tube and an inner tube interlocked with each other, a ton bag fixing frame fixed to the bottom of the inner tube, a drive mechanism disposed between the movable frame and the ton bag fixing frame, and a self-locking mechanism disposed between the outer tube and the inner tube, the drive mechanism being used to drive the inner tube to move up and down within the outer tube; and a grabbing assembly for grabbing ton bags on the pallet. This invention's anti-sway ton bag grabber has a high degree of automation, making it less prone to swaying during ton bag transfer, resulting in more accurate transfer positioning and reducing the likelihood of spillage during material drop.

Description

Technical Field

[0001] This invention belongs to the field of ton bag gripping technology, specifically relating to an anti-swaying ton bag gripping machine. Background Technology

[0002] Ton bags are flexible transport packaging containers with advantages such as moisture resistance, dust resistance, radiation resistance, and robust safety, and they also possess sufficient structural strength. Because ton bags are very convenient to load, unload, and handle, significantly improving efficiency, their development has been rapid in recent years. Ton bags are generally made of polyester fibers such as polypropylene and polyethylene, and can be widely used for packaging various powdery, granular, and lumpy goods in the chemical, building materials, plastics, and mineral products industries. They are ideal for warehousing and transportation industries.

[0003] In the existing process of grabbing ton bags, the ton bags shake during transfer, making it impossible to accurately transfer them to the designated location. During the subsequent material unloading process, the material inside the ton bags is prone to spilling outside the hopper, resulting in material waste. Moreover, manual collection also requires time and financial investment. Summary of the Invention

[0004] The purpose of this invention is to overcome the defect of existing ton bag gripping processes, which are prone to material leakage during material dropping due to the shaking of the ton bags, and to provide an anti-swaying ton bag gripping machine.

[0005] To achieve the above objectives, the technical solution adopted by the present invention is: an anti-sway ton bag gripper, comprising:

[0006] A conveying assembly for conveying pallets carrying ton bags;

[0007] The transfer assembly includes a transfer frame, a movable frame movably disposed on top of the transfer frame, and an anti-sway mechanism disposed between the transfer frame and the movable frame;

[0008] The telescopic assembly is fixed to the top of the mobile frame. The telescopic assembly includes an outer tube and an inner tube that are inserted into each other, a ton bag fixing frame fixed to the bottom of the inner tube, a drive mechanism disposed between the mobile frame and the ton bag fixing frame, and a self-locking mechanism disposed between the outer tube and the inner tube. The drive mechanism is used to drive the inner tube to rise and fall inside the outer tube.

[0009] The bag-grabbing assembly includes a bag-grabbing frame fixed to the bottom of the bag-grabbing frame, a horizontally penetrating piercing hole through the bag-grabbing frame, a detachable piercing frame disposed on the outside of the bag-grabbing frame, and a piercing post fixed on the inside of the piercing frame and penetrating the piercing hole. The piercing post moves inward to grab the bag on the pallet.

[0010] Optimally, the transfer assembly further includes a drive sprocket rotatably mounted on one side of the top of the transfer frame, a driven sprocket adjustablely disposed on the other side of the top of the transfer frame, a chain wound around the drive sprocket and the driven sprocket, and a movable plate fixed to the chain, the movable frame being fixed to the top of the movable plate.

[0011] Optimally, the transfer assembly further includes a sprocket frame fixed to the top of the transfer frame, an adjustment groove horizontally penetrating the sprocket frame, a sprocket shaft disposed in the adjustment groove, insert blocks fixed to both ends of the sprocket shaft, a vertical plate fixed to the outside of the sprocket frame, and a stop bolt screwed through the vertical plate. The stop bolt abuts against one side of the insert block, and the driven sprocket is mounted on the sprocket shaft via a bearing.

[0012] Optimally, the anti-sway mechanism includes a guide rail fixed to the top of the transfer frame, a support beam slidably mounted on the guide rail, a rotating wheel rotatably mounted on the bottom of the support beam, anti-deviation plates integrally connected to both sides of the rotating wheel, a first extension fixed to the inner side of the bottom of the support beam, and a second extension integrally connected to the inner side of the first extension. The rotating wheel rests on the guide rail, the diameter of the anti-deviation plate is larger than the diameter of the rotating wheel, and the transfer frame is fixed to the top of the support beam.

[0013] Ideally, the guide rail includes a bottom support fixed to the top of the transfer frame, a vertical support integrally connected to the top of the bottom support and vertically arranged, and a top support integrally connected to the top of the vertical support. The distance between the two sets of anti-deviation plates is greater than the width of the top support, and a gap is left between the second extension and the vertical support.

[0014] Optimally, the drive mechanism includes an electric hoist mounted on a movable frame, pulley shaft grooves opened on both sides of the ton bag fixing frame, a pulley shaft passing through the pulley shaft grooves, limiting plates fixed at intervals on the outside of the ton bag fixing frame, a second limiting groove disposed between the two sets of limiting plates, grooves opened at both ends of the pulley shaft and engaged in the second limiting grooves, and a movable pulley sleeved on the pulley shaft and connected to the electric hoist.

[0015] The height of the pulley shaft groove is greater than the diameter of the pulley shaft.

[0016] Optimally, the self-locking mechanism includes an outer groove penetrating the bottom of the outer tube, an inner groove penetrating the top of the inner tube, a self-locking block fixed between the inner sidewalls of the top of the inner tube, and a clip elastically disposed in the self-locking block, wherein the height of the inner groove is greater than the height of the outer groove.

[0017] When the inner tube descends, the locking member springs outward and locks into the outer groove;

[0018] When the inner tube rises, the clamp retracts and abuts against the inner wall of the outer tube.

[0019] Optimally, the self-locking mechanism further includes a first limiting groove at the bottom of the self-locking block, a first baffle integrally connected to the top of the first limiting groove and extending away from the outer tube, pin fixing holes on both sides of the first limiting groove, and a pin passing through the pin fixing holes, wherein the locking member is pivotally connected to the pin.

[0020] Optimally, the locking component includes a contact block, two sets of locking plates integrally connected to one side of the contact block, a torsion spring groove disposed between the locking plates, a pin through hole penetrating the locking plates, a second baffle integrally disposed at the bottom of the contact block and perpendicular to it, and a torsion spring sleeved on the pin, wherein the pin passes through the pin through hole and the torsion spring abuts against the inner side of the first baffle and the second baffle.

[0021] When the inner tube descends, the contact block passes through the inner groove and gets stuck in the outer groove;

[0022] When the inner tube rises, the contact block abuts against the inner wall of the fixed tube.

[0023] Optimally, the bag-grabbing assembly further includes a guide sleeve fixed to the top of the bag-grabbing frame, a guide post penetrating the guide sleeve, a bag-piercing plate fixed to the outside of the guide post, a first guide plate fixed to the top of the bag-grabbing frame, a first guide surface inclinedly opened on the outside of the first guide plate, a second fixing plate fixed to the inside of the bag-piercing frame, and a second guide surface inclinedly opened on the inside of the second guide plate, wherein the bag-piercing frame is fixed to the outside of the bag-piercing plate.

[0024] Due to the application of the above technical solution, the present invention has the following advantages compared with the prior art:

[0025] This invention, an anti-sway ton bag gripper, first uses a conveying component to transport the ton bag to directly below a transfer frame. A telescopic component then lowers the gripping component, which grabs the ton bag. The telescopic component then resets the gripping component holding the ton bag. The transfer component then moves the ton bag to the unloading hopper, cutting open the bottom of the bag to facilitate the release of the internal material. The entire process is highly automated, the ton bag is less prone to shaking during transfer, the transfer position is more accurate, and spillage during material release is less likely. Attached Figure Description

[0026] Figure 1 This is a schematic diagram of the structure of the present invention;

[0027] Figure 2 This is a schematic diagram of the structure of the conveying component of the present invention;

[0028] Figure 3 This is a schematic diagram of the structure of the transfer component of the present invention;

[0029] Figure 4 This is a top view of the transfer component of the present invention;

[0030] Figure 5 This is a schematic diagram of the structure at the bottom of the supporting beam of the present invention;

[0031] Figure 6 This is a cross-sectional view of the supporting beam of the present invention;

[0032] Figure 7 This is a schematic diagram of the driven sprocket of the present invention;

[0033] Figure 8 For the present invention Figure 7 A sectional view;

[0034] Figure 9 This is a schematic diagram of the structure of the telescopic component of the present invention;

[0035] Figure 10 This is a partial cross-sectional view of the telescopic component of the present invention;

[0036] Figure 11 This is a diagram showing the positional relationship between the self-locking block and the contact block in this invention;

[0037] Figure 12 This is a schematic diagram of the self-locking block of the present invention;

[0038] Figure 13 This is a schematic diagram of the contact block structure of the present invention;

[0039] Figure 14 This is a schematic diagram of the structure of the movable pulley in this invention;

[0040] Figure 15 For the present invention Figure 14 A sectional view;

[0041] Figure 16 This is a schematic diagram of the pulley shaft of the present invention;

[0042] Figure 17 This is a schematic diagram of the packet capture component of the present invention in its open state;

[0043] Figure 18 This is a schematic diagram of the packet capture component of the present invention in the packet capture state;

[0044] Figure 19 This is the front view of the packet capture component of the present invention;

[0045] Figure 20 For the present invention Figure 18 Enlarged view of point A in the middle;

[0046] Figure 21 For the present invention Figure 19 Enlarged view of point B in the middle;

[0047] Figure 22 This is a schematic diagram of the structure of the bag-grabbing frame of the present invention;

[0048] Explanation of reference numerals in the attached figures:

[0049] 1. Conveying assembly; 101. Conveying frame; 102. Conveying roller; 103. Pallet; 104. Fixing plate; 105. Outer folding plate; 106. Ton bag baffle;

[0050] 2. Transfer assembly; 201. Transfer frame; 202. Drive motor; 203. Drive shaft; 204. Power belt; 205. Drive sprocket; 206. Driven sprocket; 207. Chain; 208. Sprocket frame; 209. Adjustment groove; 210. Insert block; 211. Slot; 212. Vertical plate; 213. Anti-blocking bolt; 214. Fastening nut; 215. Chain compartment; 216. Moving plate; 217. Guide rail; 2171. Bottom support; 2172. Vertical support; 2173. Top support; 218. Support beam; 219. Rotary wheel; 220. Anti-deviation plate; 221. First extension; 222. Second extension; 223. Moving frame;

[0051] 3. Telescopic assembly; 301. Outer tube; 302. Inner tube; 303. Outer groove; 304. Inner groove; 305. Self-locking block; 306. Pin fixing hole; 307. First limiting groove; 308. First baffle; 309. Contact block; 310. Clamping plate; 311. Torsion spring groove; 312. Arc-shaped part; 313. Pin through hole; 314. Second baffle; 315. Torsion spring; 316. Pin; 317. Solid rib; 318. Tonnage bag fixing frame; 319. Pulley shaft groove; 320. Pulley shaft; 321. Movable pulley; 322. Limiting sleeve; 323. Limiting plate; 324. Second limiting groove; 325. Groove;

[0052] 4. Bag-grabbing assembly; 400. Bag-grabbing frame; 401. Crossbeam; 402. Longitudinal beam; 403. Diagonal beam; 404. Bag frame reinforcement; 405. Piercing hole; 406. First guide plate; 407. First guide surface; 408. Bearing plate; 409. Guide sleeve fixing plate; 410. Guide sleeve; 411. Hydraulic cylinder fixing plate; 412. Pushing hydraulic cylinder; 413. Proximity switch fixing plate; 414. Proximity switch; 415. Bag-piercing plate; 416. Guide post; 417. Bag-piercing frame; 418. Bag-piercing post; 419. Second guide plate; 420. Second guide surface; 421. Second sensing element. Detailed Implementation

[0053] The present invention will be further described below with reference to the embodiments shown in the accompanying drawings.

[0054] like Figure 1The diagram shows the structure of an anti-sway ton bag grabber, which is typically used to grab ton bags and transfer them to a hopper for unloading. It prevents shaking during grabbing, thus improving the accuracy of ton bag placement. The grabber includes a conveying assembly 1, a transfer assembly 2, a telescopic assembly 3, and a grabbing assembly 4.

[0055] like Figure 2 The diagram shows the structure of the conveying assembly 1, which includes a conveying frame 101, conveying rollers 102, a pallet 103, a fixing plate 104, an outer folding plate 105, and a ton bag baffle 106. The conveying frame 101 is welded from aluminum profiles. There are multiple sets of conveying rollers 102, which are rotatably mounted on the top of the conveying frame 101 via bearings. The multiple sets of conveying rollers 102 are arranged at intervals to convey the pallet 103 containing ton bags. (A conveyor belt is wound around the outer end of the conveying rollers 102. When the motor drives one set of conveying rollers 102 to rotate, the other conveying rollers 102 are driven to rotate under the action of the conveyor belt, thereby completing the conveying of the pallet 103.)

[0056] The fixing plate 104 is fixed to the outer side of the top of the conveyor frame 101 by screws. The outer folding plate 105 is integrally connected to the top of the fixing plate 104 and extends outward. The ton bag baffle 106 is integrally connected to the top of the outer folding plate 105. Due to the flexibility of the ton bag, the bottom of the ton bag will creep outward after being placed on the pallet 103. Therefore, the ton bag is blocked by the outer folding plate 105 and the ton bag baffle 106.

[0057] like Figure 3 , 4 The diagram shows the structure of the transfer assembly 2. The transfer assembly 2 is used to move the telescopic assembly 3, thereby completing the transfer of the ton bags. The transfer assembly 2 includes a transfer frame 201, a drive motor 202, a drive shaft 203, a power belt 204, a drive sprocket 205, a driven sprocket 206, a chain 207, a sprocket frame 208, an adjusting groove 209, an insert block 210, a slot 211, a vertical plate 212, a stop bolt 213, a fastening nut 214, a chain compartment 215, a moving plate 216, a guide rail 217, a support beam 218, a rotating wheel 219, an anti-deviation plate 220, a first extension 221, a second extension 222, and a moving frame 223. The transfer frame 201 is welded from aluminum profiles and is mounted above the conveying assembly 1.

[0058] The drive motor 202 is fixed on the top of the transfer frame 201, and the drive shaft 203 is mounted on the top of the transfer frame 201 through multiple sets of bearing seats. The drive motor 202 and the drive shaft 203 are connected by a power belt 204, and the drive shaft 203 is rotated under the drive of the drive motor 202.

[0059] like Figure 4As shown, drive sprockets 205 are installed at both ends of the drive shaft 203, and an adjustable driven sprocket 206 is installed on the side of the transfer frame 201 away from the drive shaft 203. The chain 207 is wound around the drive sprocket 205 and the driven sprocket 206. The drive shaft 203 drives the drive sprocket 205 to rotate, which in turn drives the chain 207 to rotate synchronously. The chain magazine 215 is fixed to the top of the transfer frame 201. The chain magazine 215 is in the shape of "[", and the opening of the "[" shaped chain magazine 215 faces upward. The chain 207 is placed in the chain magazine 215, and the chain magazine 215 supports the chain 207 to prevent the chain 207 from sinking and affecting the accuracy of the transfer position of the ton bag.

[0060] like Figure 7 , 8 As shown, the sprocket frame 208 is fixed to the top of the transfer frame 201 and is used to install the driven sprocket 206. Adjustment slots 209 are horizontally opened on both sides of the sprocket frame 208. The driven sprocket 206 is rotatably mounted in the sprocket shaft via bearings, and the sprocket shaft is located within the adjustment slots 209. Insert blocks 210 are located on the outer side of the sprocket frame 208. A slot 211 is provided on the side of the insert block 210 closest to the sprocket frame 208. Both ends of the sprocket shaft have structures that mate with the slot 211. During actual installation, the sprocket shaft passes through the adjustment slot 209 and is inserted into the slot 211. Then, fastening bolts are passed through the insert blocks 210 and fixed to both ends of the sprocket shaft. Under the action of the bearings, the rotating chain 207 will drive the driven sprocket 206 to rotate synchronously. Because the sprocket shaft is inserted into the adjustment slot 109, the insert block 210 will not fall off.

[0061] The upright plate 212 is fixed to the outside of the sprocket frame 208 and is vertically installed. The upright plate 212 has a threaded hole. The abutting bolt 213 is screwed through the threaded hole on the upright plate 212 and abuts against the side of the insert block 210. The abutting bolt 213 is not fixed to the insert block 210, but only abuts against the side of the insert block 210.

[0062] In actual transfer and conveying operations, the chain 207 may stretch after prolonged rotation, causing it to loosen and making it impossible to accurately transfer the ton bags to their corresponding positions. In this case, the adjusting stop bolt 213 can be rotated to push the insert block 210 away from the drive sprocket 205, thereby increasing the distance between the driven sprocket 206 and the drive sprocket 205, meeting the requirements for winding the stretched chain 207. A fastening nut 214 is also screwed between the stop bolt 213 and the upright plate 212 to prevent vibration caused by prolonged chain rotation from loosening the stop bolt 213.

[0063] The movable plate 216 is fixed to a link of the chain 207 and moves synchronously with the chain 207. In this embodiment, the drive motor 202 drives the chain 207 to make a reciprocating linear motion on the top of the transfer frame 201, rather than driving the chain 207 to rotate. Therefore, the chain 207 drives the movable plate 216 to make a linear motion on the transfer frame 201. The movable frame 223 is fixed to the top of the movable plate 216, and the telescopic component 3 and the bag-grabbing component 4 are both fixed to the movable frame 223. Therefore, the drive motor 202 drives the movable frame 223 to move through the chain 207, thereby satisfying the grabbing and transfer of ton bags.

[0064] like Figure 5 , 6 As shown, to improve the stability of the moving frame 223 during movement, the top of the transfer frame 201 is provided with a cooperating guide rail 217 and a support beam 218. The guide rail 217 is fixed to the top of the transfer frame 201 and is used to guide and limit the movement of the support beam 218. The guide rail 217 includes a bottom support part 2171, a vertical support part 2172, and a top support part 2173. The bottom support part 2171, the vertical support part 2172, and the top support part 2173 form an "I"-shaped structure. The bottom support part 2171 mainly serves as a support, while the vertical support part 2172 and the top support part 2173 are used to guide and limit the movement of the support beam 218.

[0065] The top of the support beam 218 is fixed to the movable frame 223, and the bottom of the support beam 218 is provided with a groove. The rotating wheel 219 is rotatably installed in the groove at the bottom of the support beam 218 via a rotating shaft and rests on the top support part 2173. When the movable frame 223 moves, it will drive the support beam 218 to move synchronously. The rotating wheel 219 at the bottom of the support beam 218 rotates against the top support part 2173. The contact between the rotating wheel 219 and the top support part 2173 is a line contact with a small contact area, so the friction between the two is smaller. While ensuring the support of the movable frame 223, too much friction is not applied to the chain 207, thus avoiding power loss of the drive motor 202.

[0066] Anti-deviation plates 220 are integrally connected to both sides of the rotating wheel 219, and the diameter of the anti-deviation plates 220 is larger than the diameter of the rotating wheel 219. For example... Figure 6 As shown, the distance between the two sets of anti-deviation plates 220 is greater than the width of the top support 2173. When the rotating wheel 219 rotates against the top support 2173, it provides displacement space for the axial movement of the support beam 218. The anti-deviation plates 220 can limit the axial movement of the rotating wheel 219 and the support beam 218, preventing excessive movement.

[0067] By setting anti-deviation plates 220, the difficulty of processing and installing guide rails 217 and support beams 218 can be reduced. On the other hand, since the chain 207 conveying is a flexible conveying method, the chain 207 will swing during conveying. Therefore, setting a space for movement can counteract the swing of the chain 207. If the distance between the two sets of anti-deviation plates 220 is set to be equal to the width of the top support 2173, the flexible swinging motion of the chain 207 cannot be counteracted, which may result in jamming or excessive compression between the support beam 218 and the guide rail 217 (the swing of the chain 207 is the swing along the width direction of the chain 207).

[0068] The first extension 221 is integrally connected to the inner side of the groove at the bottom of the support beam 218 and is vertically arranged, such as... Figure 6 As shown, the first extension 221 is located on both sides of the turntable 219. The second extension 222 is integrally connected to the inner side of the first extension 221 and extends towards the vertical support 2172. A gap is also provided between the second extension 222 and the vertical support 2172. The swaying caused by the chain 207 during transport is transmitted to the support beam 218 through the moving plate 216 and the moving frame 223. The gap between the second extension 222 and the vertical support 2172 also serves to counteract the swaying motion. The anti-deviation plate 220 and the second extension 222 not only counteract the swaying motion but also limit the axial movement of the support beam 218 caused by the swaying motion, preventing excessive movement and derailment.

[0069] like Figure 9 The diagram shows the structure of the telescopic component 3. The telescopic component 3 is fixed on the top of the mobile frame 223. Under the drive of the mobile frame 223, it completes the transfer and conveying of the ton bags. There are at least two sets of telescopic components 3, which are used to fix the bag gripping component 4 and prevent the bag gripping component 4 from shaking when it moves up and down. The telescopic assembly 3 includes an outer tube 301, an inner tube 302, an outer groove 303, an inner groove 304, a self-locking block 305, a pin fixing hole 306, a first limiting groove 307, a first baffle 308, a contact block 309, a locking plate 310, a torsion spring groove 311, an arc-shaped part 312, a pin through hole 313, a second baffle 314, a torsion spring 315, a pin 316, a solid rib 317, a ton bag fixing frame 318, a pulley shaft groove 319, a pulley shaft 320, a movable pulley 321, a limiting sleeve 322, a limiting plate 323, a second limiting groove 324, and a groove 325.

[0070] The telescopic component 3 consists of multiple sets of sleeves with gradually decreasing diameters. The lifting and lowering movement of the grabbing component 4 is achieved by the telescopic movement between the sleeves. A self-locking mechanism is provided between each pair of adjacent sleeves. The self-locking mechanism has a self-locking function. For the convenience of explaining the self-locking mechanism, the structure of two adjacent sleeves will be described. The larger diameter is defined as the outer tube 301, and the smaller diameter is defined as the inner tube 302.

[0071] like Figure 10-13 As shown, the outer groove 303 passes through the bottom of the outer tube 301, and the inner groove 304 passes through the top of the inner tube 302. The height of the inner groove 304 is greater than the height of the outer groove 303. When the inner tube 302 rises, it ensures that the contact block 309 smoothly flips into the inner groove 304 and abuts against the inner wall of the outer tube 301.

[0072] The self-locking block 305 is fixed to the inner wall of the top of the inner tube 302, such as... Figure 12 As shown, the first limiting groove 307 is formed at the bottom of the self-locking block 305, and the first limiting groove 307, the outer groove 303, and the inner groove 304 are distributed in the same direction to ensure that the internal locking parts can move normally. The first baffle 308 is integrally connected to the top of the first limiting groove 307 and extends inward to abut against the torsion spring 315.

[0073] The pin fixing hole 306 is opened on the two sets of sides of the first limiting groove 307. The pin 316 passes through the self-locking block 305 and is fixed in the pin fixing hole 306. Under the action of the pin 316, the contact block 309 flips in the first limiting groove 307, thereby realizing the self-locking function.

[0074] like Figure 13 As shown, the clamping plate 310 is integrally connected to one side of the contact block 309 and spaced apart. The contact block 309 and the clamping plate 310 are disposed within the first limiting groove 307, which limits the clamping plate 310 and the contact block 309 under the action of the first limiting groove 307. The pin through hole 313 passes through the clamping plate 310, and the pin 316 passes through the pin through hole 313. The second baffle 314 is integrally disposed at the bottom of the contact block 309 and is perpendicular to it. A torsion spring groove 311 is provided between the two sets of clamping plates 310. The torsion spring 315 is sleeved on the pin 316 and abuts against the first baffle 308 and the second baffle 314. A solid rib 317 is integrally connected between the contact block 309 and the second baffle 314 to improve the structural strength of the contact block 309 and the second baffle 314. This is because when the ton bag fixing frame 318 rises, the torsion spring 315 is compressed and clamped between the first baffle 308 and the second baffle 314. The solid rib 317 prevents the second baffle 314 from breaking. The arc-shaped portion 312 prevents interference.

[0075] like Figure 10 , 11 As shown, when the electric hoist drives the ton bag fixing frame 318 to rise, the inner tube 302 rises synchronously inside the outer tube 301. The self-locking block 305 drives the contact block 309 to rise. When the contact block 309 contacts the outer groove 303, it continues to rise. Under the action of the torsion spring 315, the contact block 309 flips inward and is placed in the inner groove 304. At this time, the outer side of the contact block 309 abuts against the inner wall of the outer tube 301.

[0076] When the electric hoist drives the ton bag fixing frame 318 to descend, the inner tube 302 descends synchronously within the outer tube 301. The self-locking block 305 drives the contact block 309 to descend. When the contact block 309 passes through the opening of the outer groove 303, it is pushed outward by the torsion spring 315, so that the contact block 309 is stuck in the outer groove 303, thus completing the self-locking.

[0077] like Figure 14 , 15 As shown, a ton bag fixing frame 318 is fixed at the bottom of the inner tube 302, the bag grabbing assembly 4 is fixed on the ton bag fixing frame 318, an electric hoist is installed on the top of the movable frame 223, and a movable pulley 321 is installed on the ton bag fixing frame 318. The ton bag is grabbed, lifted and transferred by the cooperation of the electric hoist and the movable pulley 321.

[0078] The ton bag fixing frame 318 has a vertically arranged pulley shaft groove 319, and the pulley shaft 320 passes through the pulley shaft groove 319, with space for vertical movement within the pulley shaft groove 319. The movable pulley 321 is installed on the pulley shaft 320 and is connected to an electric hoist. Under the action of the electric hoist, the ton bag fixing frame 318 below is raised and lowered.

[0079] A limiting sleeve 322 is fitted onto the pulley shaft 320, preventing the movable pulley 321 from moving axially. Two sets of limiting plates 323 are fixed to the outer side of the ton bag fixing frame 318, forming a second limiting groove 324 between the two sets of limiting plates 323. Figure 16 As shown, the pulley shaft 320 has grooves 325 at both ends that mate with the second limiting groove 324. By providing the pulley shaft groove 319, when gripping the ton bag, the pulley shaft 320 has a downward movement space within the pulley shaft groove 319. At this time, the pulley shaft 320 descends to the bottom of the pulley shaft groove 319, preventing the electric hoist from continuously suspending the ton bag fixing frame 318, thus helping to extend the service life of the equipment. When it is necessary to lift the ton bag, the electric hoist drives the pulley 321 and pulley shaft 320 to rise to the top of the pulley shaft groove 319, and then lifts the ton bag below. The limiting plates 323 on both sides can limit the lifting and lowering movement of the pulley shaft 320.

[0080] like Figure 17-22The diagram shows the structure of the bag-grabbing assembly 4. The bag-grabbing assembly 4 is used to grab ton bags from the conveying assembly 1 and transfer them to the top of the unloading hopper. The bag-grabbing assembly 4 includes a bag-grabbing frame 400, a crossbeam 401, a longitudinal beam 402, an inclined beam 403, a bag-grabbing frame rib 404, a piercing hole 405, a first guide plate 406, a first guide surface 407, a bearing plate 408, a guide sleeve fixing plate 409, a guide sleeve 410, a hydraulic cylinder fixing plate 411, a pushing hydraulic cylinder 412, a proximity switch fixing plate 413, a proximity switch 414, a piercing plate 415, a guide post 416, a piercing frame 417, a piercing post 418, a second guide plate 419, a second guide surface 420, and a second sensing plate 421. The bag-grabbing frame 400 is welded from aluminum alloy and has an internal cavity for accommodating ton bags.

[0081] The crossbeam 401 and the longitudinal beam 402 are fixed in a cross shape on the inner side wall of the top of the bag grabbing frame 400. The crossbeam 401 and the longitudinal beam 402 are used to improve the structural strength of the bag grabbing frame 400. The ton bag fixing frame 318 is fixed between the crossbeam 401 and the longitudinal beam 402 and is used to drive the bag grabbing frame 400 to rise and fall, thereby completing the transfer of ton bags.

[0082] The inclined beam 403 is fixed to the ends of the horizontal beam 401 and the longitudinal beam 402. The packing frame reinforcement 404 is integrally set on the outer side wall of the packing frame 400 to improve the structural strength of the side wall of the packing frame 400. Part of the bearing plate 408 is fixed to the top of the packing frame 400, and the other part is fixed to the top of the inclined beam 403. The first guide plate 406 is fixed to the top of the packing frame 400 and located on both sides of the bearing plate 408. The first guide surface 407 is set on the outside of the first guide plate 406 and is inclined. The first guide plate 406 and the second guide plate 419 are used in conjunction to guide the clamping movement of the packing spikes 417. The piercing holes 405 horizontally penetrate the side wall of the packing frame 400 to provide clearance space for the movement of the packing spikes 418.

[0083] The guide sleeve fixing plate 409 is fixed to the top of the bearing plate 408 by screws. The cylinder fixing plate 411 is vertically fixed to the top of the guide sleeve fixing plate 409. The guide sleeve 410 is fixed to the inner side of the cylinder fixing plate 411. The push cylinder 412 is fixed to the inner side of the cylinder fixing plate 411. The barbed plate 415 is connected to the guide rod of the push cylinder 412. Under the drive of the push cylinder 412, the barbed plate 415 moves. The guide post 416 passes through the guide sleeve 410 and the cylinder fixing plate 411 and is fixed on the barbed plate 415. When the barbed plate 415 moves, the guide post 416 will move synchronously along the guide sleeve 410 to guide the movement of the barbed plate 415.

[0084] The barbed bag holder 417 is fixed to the outside of the barbed bag plate 415 and moves synchronously with the movement of the barbed bag plate 415. The barbed bag post 418 is fixed to the inside of the barbed bag holder 417 and passes through the barbed hole 405. When the barbed bag holder 417 moves inward, it drives the barbed bag post 418 to move inward synchronously, thereby gripping the ton bag in the gripping frame 400 (the inside of the barbed bag post 418 is provided with spikes, which pierce the ton bag and insert into the inside of the ton bag when gripping, and prevent the ton bag from falling down as the material is discharged).

[0085] The second guide plate 419 is fixed inside the barbed wire frame 417 and cooperates with the first guide plate 406. The second guide surface 420 is opened inside the second guide plate 419 and is inclined. When the barbed wire frame 417 retracts inward, the second guide surface 420 and the first guide surface 407 cooperate to ensure that the second guide plate 419 retracts smoothly to the top of the first guide plate 406, and the first guide plate 406 supports the outer barbed wire frame 417.

[0086] The proximity switch mounting plate 413 is fixed to the top of the guide sleeve 410, and the proximity switch 414 is fixed on the proximity switch mounting plate 413 and cooperates with the second sensing piece 321 on the stab holder 417. When the stab holder 417 opens outward, the opening stroke is controlled to be within a safe distance.

[0087] The bag-grabbing process of the anti-sway ton bag grabber of this invention is as follows:

[0088] First, the conveying component 1 transports the ton bag to directly below the transfer frame 201. The telescopic component 3 drives the gripping component 4 to descend, and the gripping component 4 grabs the ton bag. The telescopic component 3 drives the gripping component 4, which has grabbed the ton bag, to reset. Under the drive of the transfer component 2, the ton bag is transferred to the unloading hopper, and the bottom of the ton bag is cut open to facilitate the falling of the internal material.

[0089] The above embodiments are only for illustrating the technical concept and features of the present invention, and are intended to enable those skilled in the art to understand the content of the present invention and implement it accordingly. They should not be construed as limiting the scope of protection of the present invention. All equivalent changes or modifications made in accordance with the spirit and essence of the present invention should be covered within the scope of protection of the present invention.

Claims

1. An anti-sway ton bag gripper, characterized in that, It includes: A conveying assembly (1) for conveying a pallet (103) carrying a ton bag; The transfer assembly (2) includes a transfer frame (201), a movable frame (223) movably disposed on top of the transfer frame (201), and an anti-sway mechanism disposed between the transfer frame (201) and the movable frame (223); Telescopic assembly (3), the telescopic assembly (3) is fixed on the top of the movable frame (223), the telescopic assembly (3) includes an outer tube (301) and an inner tube (302) that are inserted into each other, a ton bag fixing frame (318) fixed at the bottom of the inner tube (302), a drive mechanism disposed between the movable frame (223) and the ton bag fixing frame (318), and a self-locking mechanism disposed between the outer tube (301) and the inner tube (302). The drive mechanism is used to drive the inner tube (302) to rise and fall inside the outer tube (301); The drive mechanism includes an electric hoist mounted on a movable frame (223), pulley shaft grooves (319) on both sides of the ton bag fixing frame (318), a pulley shaft (320) passing through the pulley shaft grooves (319), limiting plates (323) fixed at intervals on the outside of the ton bag fixing frame (318), a second limiting groove (324) between the two sets of limiting plates (323), grooves (325) at both ends of the pulley shaft (320) and locked in the second limiting grooves (324), and a movable pulley (321) sleeved on the pulley shaft (320) and connected to the electric hoist; the height of the pulley shaft groove (319) is greater than the diameter of the pulley shaft (320); The bag-grabbing assembly (4) includes a bag-grabbing frame (400) fixed to the bottom of the bag-grabbing fixture (318), a piercing hole (405) horizontally penetrating the bag-grabbing frame (400), a piercing frame (417) movably disposed on the outside of the bag-grabbing frame (400), and a piercing post (418) fixed on the inside of the piercing frame (417) and penetrating the piercing hole (405). The piercing post (418) moves inward to grab the bag on the pallet (103).

2. The anti-sway ton bag gripper according to claim 1, characterized in that: The transfer assembly (2) further includes a drive sprocket (205) rotatably mounted on one side of the top of the transfer frame (201), a driven sprocket (206) adjustablely disposed on the other side of the top of the transfer frame (201), a chain (207) wound around the drive sprocket (205) and the driven sprocket (206), and a movable plate (216) fixed on the chain (207), wherein the movable frame (223) is fixed on the top of the movable plate (216).

3. The anti-sway ton bag gripper according to claim 2, characterized in that: The transfer assembly (2) also includes a sprocket frame (208) fixed to the top of the transfer frame (201), an adjustment groove (209) horizontally penetrating the sprocket frame (208), a sprocket shaft disposed in the adjustment groove (209), insert blocks (210) fixed at both ends of the sprocket shaft, a vertical plate (212) fixed to the outside of the sprocket frame (208), and a stop bolt (213) screwed through the vertical plate (212). The stop bolt (213) abuts against one side of the insert block (210), and the driven sprocket (206) is mounted on the sprocket shaft through a bearing.

4. The anti-sway ton bag gripper according to claim 1, characterized in that: The anti-sway mechanism includes a guide rail (217) fixed to the top of the transfer frame (201), a support beam (218) slidably mounted on the guide rail (217), a rotating wheel (219) rotatably mounted on the bottom of the support beam (218), anti-deviation plates (220) integrally connected to both sides of the rotating wheel (219), a first extension (221) fixed to the inner side of the bottom of the support beam (218), and a second extension (222) integrally connected to the inner side of the first extension (221). The rotating wheel (219) is mounted on the guide rail (217), and the diameter of the anti-deviation plate (220) is larger than the diameter of the rotating wheel (219). The moving frame (223) is fixed to the top of the support beam (218).

5. The anti-sway ton bag gripper according to claim 4, characterized in that: The guide rail (217) includes a bottom support (2171) fixed to the top of the transfer frame (201), a vertical support (2172) integrally connected to the top of the bottom support (2171) and vertically arranged, and a top support (2173) integrally connected to the top of the vertical support (2172). The distance between the two sets of anti-deviation plates (220) is greater than the width of the top support (2173), and a gap is left between the second extension (222) and the vertical support (2172).

6. The anti-sway ton bag gripper according to claim 1, characterized in that: The self-locking mechanism includes an outer groove (303) penetrating the bottom of the outer tube (301), an inner groove (304) penetrating the top of the inner tube (302), a self-locking block (305) fixed between the inner sidewalls of the top of the inner tube (302), and a clip elastically disposed in the self-locking block (305). The height of the inner groove (304) is greater than the height of the outer groove (303). When the inner tube (302) descends, the locking member springs outward and locks into the outer groove (303); When the inner tube (302) rises, the clip retracts and abuts against the inner wall of the outer tube (301).

7. The anti-sway ton bag gripper according to claim 6, characterized in that: The self-locking mechanism further includes a first limiting groove (307) opened at the bottom of the self-locking block (305), a first baffle (308) integrally connected to the top of the first limiting groove (307) and extending away from the outer tube (301), pin fixing holes (306) opened on both sides of the first limiting groove (307), and a pin (316) passing through the pin fixing holes (306), wherein the locking member is pivotally connected to the pin (316).

8. The anti-sway ton bag gripper according to claim 7, characterized in that: The locking component includes a contact block (309), two sets of locking plates (310) integrally connected to one side of the contact block (309), a torsion spring groove (311) disposed between the locking plates (310), a pin through hole (313) penetrating the locking plate (310), a second baffle (314) integrally disposed at the bottom of the contact block (309) and perpendicular to it, and a torsion spring (315) sleeved on the pin (316). The pin (316) passes through the pin through hole (313), and the torsion spring (315) abuts against the inner side of the first baffle (308) and the second baffle (314). When the inner tube (302) descends, the contact block (309) passes through the inner groove (304) and gets stuck in the outer groove (303); When the inner tube (302) rises, the contact block (309) abuts against the inner wall of the fixed tube.

9. The anti-sway ton bag gripper according to claim 1, characterized in that: The bag-grabbing assembly (4) further includes a guide sleeve (410) fixed to the top of the bag-grabbing frame (400), a guide post (416) penetrating the guide sleeve (410), a piercing plate (415) fixed to the outside of the guide post (416), a first guide plate (406) fixed to the top of the bag-grabbing frame (400), a first guide surface (407) inclinedly opened to the outside of the first guide plate (406), a second guide plate (419) fixed to the inside of the piercing frame (417), and a second guide surface (420) inclinedly opened to the inside of the second guide plate (419). The piercing frame (417) is fixed to the outside of the piercing plate (415).

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