Powder material feeding device

Abstract

The invention provides a powder material feeding device, and belongs to the technical field of material transferring and feeding, the powder material feeding device comprises a beating mechanism, the beating mechanism comprises a pair of vertical plates and two pairs of first rotating rods, the pair of vertical plates are symmetrically arranged on a supporting table, and the two pairs of first rotating rods are hinged to the tops of the two sides of the pair of vertical plates respectively; a second rotating rod is rotationally connected between each pair of first rotating rods, a groove is formed in the middle of the top face of the supporting table and located between the pair of vertical plates, and a through hole is formed in the middle of the groove and used for containing a feeding pipe of a storage tank; the pushing blocks are arranged on the two sides of the groove in a sliding mode in the vertical direction, and a pair of vertical lifting mechanisms is arranged at the bottom of the supporting table; the linear mechanism is erected above the supporting table, a vertical rod is arranged at the movable end of the linear mechanism in a penetrating mode, the bottom of the vertical rod is connected with a hanging assembly, and the top of the vertical rod is connected with the rotating end of a rotating air cylinder. According to the device, the ton bags can be automatically flapped and shake up and down, and the problem of blockage during feeding can be solved without manual assistance.

Description

Technical Field

[0001] The present invention belongs to the technical field of material transfer and feeding, and in particular relates to a powder material feeding device. Background Art

[0002] The positive electrode material of a lithium battery is lithium iron phosphate, which is prepared by first mixing powder raw materials such as phosphorus, iron, lithium, and carbon, and then through processes such as wet iron removal, spray drying, and high-temperature sintering in a kiln. Currently, in order to facilitate the transfer of raw materials, powder raw materials are usually packed in ton bags. The top and bottom of the ton bag are respectively provided with a feed inlet and a discharge outlet, and a flexible discharge tube is also provided at the discharge outlet, which is convenient for sleeving outside the feed pipe of the storage tank to reduce the dust escape during the powder transfer. Before mixing the raw materials, it is necessary to first transport the ton bag filled with raw materials above the storage tank capable of discharging quantitatively, then sleeving the flexible discharge tube at the bottom of the ton bag outside the feed pipe of the storage tank, and tying the flexible discharge tube tightly outside the feed pipe of the storage tank with a tightening rope. Then, untie the tightening rope at the top of the storage tube, and the powder in the ton bag will fall into the storage tank due to gravity. Some powder raw materials with smaller particles may become blocked during the feeding process due to poor fluidity, and it is necessary to pat and shake the ton bag to make the powder raw materials continue to flow into the storage tank, which is quite labor-consuming. When the powder raw materials in the ton bag are completely fed, the powder raw materials may still adhere to the four sides and the bottom of the ton bag, and it is necessary to pat the four sides and the bottom of the ton bag manually to make it fall into the storage tank, which is also labor-consuming, and later it is also necessary to manually untie the tightening rope to transfer the emptied ton bag. Therefore, it is necessary to make improvements. Summary of the Invention

[0003] To solve the above-mentioned defects of the prior art, the present application provides a powder material feeding device, which can automatically pat the ton bag during feeding and make the ton bag shake up and down to solve the blockage problem during the feeding of powder raw materials.

[0004] To achieve the above purpose, the present invention adopts the following technologies: A powder material feeding device includes: A material patting mechanism, including a pair of vertical plates and two pairs of first rotating rods. The pair of vertical plates are symmetrically arranged on a support platform. The two pairs of first rotating rods are respectively hinged to the tops on both sides of the pair of vertical plates. The first rotating rods are driven to rotate by a rotating mechanism. A second rotating rod is rotatably connected between each pair of first rotating rods. A groove is formed in the middle of the top surface of the support platform. The groove is located between the pair of vertical plates. A through hole is provided in the middle of the groove for accommodating the feed pipe of the storage tank; A pair of pushing blocks are slidably arranged along the vertical direction on both sides of the groove. A pair of vertical lifting mechanisms are provided at the bottom of the support platform. The telescopic ends of the pair of lifting mechanisms pass through the bottom of the support platform and are connected to the pair of pushing blocks; A linear mechanism is installed above the support platform. The moving direction of the moving end of the linear mechanism is parallel to the vertical plate. A vertical rod is inserted through the moving end of the linear mechanism. The bottom of the vertical rod is connected to a hanging assembly for hanging a ton bag. The top of the vertical rod is connected to the rotating end of a rotating cylinder. When the hanging assembly with the ton bag moves directly above the support plate, the ton bag is in a suspended state, and the discharge port at the bottom of the ton bag is aligned with the feed pipe.

[0005] Further, one end of the second rotating rod passes through the first rotating rod and is connected to the output shaft of a first motor. A plurality of eccentric wheels are arranged in an array along the length direction of the second rotating rod.

[0006] Further, the linear mechanism includes a lead screw, a slider, and a second motor. The slider is slidably arranged between a pair of U-shaped slide rails. The pair of U-shaped slide rails are fixed between a pair of vertical support plates. The lead screw is rotatably connected between the pair of support plates. The lead screw is threadedly connected to the slider. One end of the lead screw is connected to the output shaft of the second motor. The vertical rod is inserted through the slider and is between the pair of U-shaped slide rails.

[0007] Further, a sliding plate is arranged at the top of the pair of U-shaped slide rails. Limiting plates are arranged at both ends of the sliding plate. The pair of limiting plates are respectively abutted against the outer sides of the pair of U-shaped slide rails. The top of the vertical rod passes through the sliding plate and is connected to the rotating end of the rotating cylinder. The rotating cylinder is fixed on the sliding plate. A limiting ring is coaxially arranged outside the vertical rod. The bottom of the limiting ring abuts against the sliding plate.

[0008] Further, the hanging assembly includes a pair of hanging rods connected in a cross shape. Hooks are arranged at the ends of the hanging rods for hanging the lifting belt of the ton bag. The middle of the hanging rods is connected to the bottom of the vertical rod.

[0009] Further, the rotating mechanism includes a gear ring and a rack. Connecting shafts are connected between the pairs of first rotating rods. The connecting shafts are inserted through the vertical plate along the length direction of the vertical plate. The gear ring is coaxially connected to the middle of the connecting shaft. A first accommodation groove is opened in the middle of the top surface of the vertical plate. The gear ring is in the first accommodation groove. A vertical second accommodation groove is opened in the middle of the inner side of the vertical plate. The rack is slidably arranged in the second accommodation groove along the vertical direction. The rack is meshed and connected to the gear ring. The bottom of the rack is connected to the pushing block through a connecting rod. When the pushing block moves upward to the maximum limit, the first rotating rod rotates upward to a vertical state. When the pushing block moves upward to the maximum limit, the second rotating rod rotates downward to abut against the vertical plate.

[0010] Further, the first rotating rod includes a front section and a rear section. The front section is connected to the end of the connecting shaft. A sliding rod is inserted through the front section along the length direction. The end of the sliding rod away from the front section is connected to the rear section. The end of the second rotating rod is connected to the rear section. A first spring is sleeved outside the sliding rod. The two ends of the first spring are respectively connected to the front section and the rear section. When the sliding rod is completely retracted into the front section, the first spring is in a compressed state.

[0011] Furthermore, a plurality of arc-shaped push pieces are provided in a circular array in the through hole, and a plurality of push rods are passed through the support platform in a circular array with the through hole as the center. One end of the plurality of push rods extends into the through hole and is connected to the plurality of arc-shaped push pieces. The plurality of push rods are arranged to reciprocate radially along the through hole. The curvature of the arc-shaped push piece matches the curvature of the outer side of the feed pipe. When the plurality of arc-shaped push pieces are closed, the plurality of arc-shaped push pieces are enclosed to form a ring and abut against the feed pipe.

[0012] Furthermore, the bottom of the support platform is provided with a plurality of strip grooves in a circumferential array with the through hole as the center, and the plurality of push rods are respectively located in the plurality of strip grooves, and one end of the push rod away from the arc-shaped push piece is sleeved with a second spring, and both ends of the second spring are respectively connected to the strip groove wall and the peripheral side of the push rod. When the spring is in a natural state, there is a preset distance between the arc push piece and the feed pipe, and the outer sides of the arc push pieces are connected to the push rod through arc-shaped protrusions, and the bottom of the arc-shaped protrusions protrudes from the bottom of the support platform. A push ring is provided at the bottom of the support platform with the same axial direction as the through hole, and a plurality of push blocks are provided in a circumferential array on the inner side of the push ring. The outer side of the push ring is connected to the movable end of a linear cylinder, and the fixed end of the linear cylinder is hinged to the bottom of the support platform. When the movable end of the linear cylinder is fully pushed out, the plurality of push blocks rotate to respectively abut against the plurality of arc-shaped protrusions, and the plurality of arc push pieces are completely closed. When the movable end of the linear cylinder is fully retracted, the push block rotates to disengage from the arc-shaped protrusion, and the second spring is in a natural state.

[0013] Furthermore, a retaining ring is provided on the outside of the push ring, a retaining plate is provided on the bottom of the retaining ring, and an arc-shaped notch is provided on the circumferential side of the retaining ring. The curvature of the arc-shaped notch is greater than the maximum rotation angle of the push ring. When the movable end of the linear cylinder is fully retracted, the hinge part between the movable end of the linear cylinder and the push ring moves to one end of the arc-shaped notch.

[0014] The beneficial effects of the present invention are: 1. During the feeding process into the storage tank, the patting mechanism can automatically pat the ton bag, and the pushing block can push the ton bag to shake up and down, solving the blockage problem when feeding powdery raw materials. No manual assistance is required for feeding. When feeding is completed, the patting mechanism and the rotating cylinder cooperate to pat the four sides of the ton bag, so that the powdery raw materials adhering to the inner wall of the ton bag are separated from the side wall of the ton bag. At the same time, the pushing block is continuously controlled to move up and down, so that the powdery raw materials that have fallen from the side wall of the ton bag to the bottom of the ton bag can be shaken up and down and fall into the storage tank, reducing the waste of raw materials. 2. When the lifting mechanism drives the pusher block to move up and down, it can also drive the rack to move up and down, and then drive the connecting shaft and the first rotating rod to rotate through the ring gear. There is no need to set up an additional power source to control the rotation of the first rotating rod and the second rotating rod; 3. Through the combination of linear cylinder, push ring and arc-shaped push piece, multiple push rods can be controlled to move back and forth at the same time to clamp or loosen the flexible discharge barrel at the bottom of the ton bag. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is a three-dimensional view of the overall structure of the device according to the embodiment of the present application.

[0016] Figure 2 It is Figure 1 the enlarged view of part A in

[0017] Figure 3 This is a three-dimensional view of the overall structure of the device according to the embodiment of the present application after hanging a ton bag.

[0018] Figure 4 This is a three-dimensional view of the connection structure of the hanging component and the rotating cylinder in the device according to the embodiment of the present application.

[0019] Figure 5 This is a cross-sectional view of a part of the structure of the device according to the embodiment of the present application.

[0020] Figure 6 This is a three-dimensional view of the structure of the material-patting mechanism in the device according to the embodiment of the present application.

[0021] Figure 7 It is Figure 6 the enlarged view of part B in

[0022] Figure 8 This is a three-dimensional view of a part of the structure of the material-patting mechanism in the device according to the embodiment of the present application.

[0023] Figure 9 This is a three-dimensional view of a part of the structure of the device according to the embodiment of the present application.

[0024] Figure 10 This is another three-dimensional view of a part of the structure of the device according to the embodiment of the present application.

[0025] Figure 11 It is Figure 10 the enlarged view of part C in

[0026] Reference numerals: material slapping mechanism - 1, storage tank - 2, pushing block - 3, suspension assembly - 4, linear mechanism - 5, rotary cylinder - 6, ton bag - 7, arc-shaped pushing piece - 8, pushing ring - 9, linear cylinder - 10, retaining ring - 11, support platform - 101, vertical plate - 102, first rotating rod - 103, second rotating rod - 104, eccentric wheel - 105, gear ring - 106, connecting shaft - 107, through hole - 1011, groove - 1012, first accommodating groove - 1021, second accommodating groove - 1022, front section - 1031, rear section - 1032, sliding rod - 1033, first spring - 1034, first motor - 1041, feed pipe - 201, rack - 301, connecting rod - 302, lifting mechanism - 303, vertical rod - 401, suspension rod - 402, hook - 403, limit ring - 4011, slider - 501, second motor - 502, U-shaped slide rail - 503, support plate - 504, lead screw - 505, sliding plate - 601, limit plate - 6011, push rod - 801, second spring - 802, arc-shaped protrusion - 803, strip-shaped groove - 1013, pushing block - 901, arc-shaped notch - 1101, retaining piece - 1102. Detailed implementation mode

[0027] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the following will describe the implementation modes of the present invention in detail with reference to the accompanying drawings. However, the embodiments described herein are only a part of the embodiments of the present invention, rather than all of the embodiments.

[0028] The embodiments of the present application provide a powder material feeding device, as Figures 1 - 11 shown, including a material slapping mechanism 1, a pushing block 3, a linear mechanism 5, etc.

[0029] Specifically, the material slapping mechanism 1 includes a pair of vertical plates 102 and two pairs of first rotating rods 103. The pair of vertical plates 102 are symmetrically arranged on a support platform 101. The two pairs of first rotating rods 103 are respectively hinged to the tops on both sides of the pair of vertical plates 102. A second rotating rod 104 is rotatably connected between each pair of first rotating rods 103. The first rotating rods 103 are driven to rotate by a rotating mechanism for driving the second rotating rod 104 to slap the side of the ton bag 7 and push the powder in the ton bag 7. A groove 1012 is formed in the middle of the top surface of the support platform 101. The groove 1012 is located between the pair of vertical plates 102. A through hole 1011 is provided in the middle of the groove 1012 for accommodating the feed pipe 201 of the storage tank 2. Specifically, the storage tank 2 can be erected at the bottom of the support platform 101, and the feed pipe 201 of the storage tank 2 is coaxially arranged in the through hole 1011.

[0030] The pusher blocks 3 are a pair, slidably arranged on both sides of the groove 1012 in the vertical direction. A pair of vertical lifting mechanisms 303 are provided at the bottom of the support platform 101. The telescopic ends of the pair of lifting mechanisms 303 pass through the bottom of the support platform 101 and are connected to the pair of pusher blocks 3, which are used to drive the pusher blocks 3 to move upward to push up both sides of the bottom of the ton bag 7, and then lower the ton bag 7 to make the ton bag 7 vibrate up and down.

[0031] The linear mechanism 5 is arranged above the support platform 101. The moving direction of the movable end of the linear mechanism 5 is parallel to the vertical plate 102. A vertical rod 401 is inserted through the movable end of the linear mechanism 5. The bottom of the vertical rod 401 is connected to a hanging assembly 4, and the hanging assembly 4 is used to hang the ton bag 7. The top of the vertical rod 401 is connected to the rotating end of a rotating cylinder 6. When the hanging assembly 4 hanging the ton bag 7 moves directly above the support plate 504, the ton bag 7 is in a suspended state, and the discharge port at the bottom of the ton bag 7 is aligned with the feed pipe 201.

[0032] During actual use, the ton bag 7 filled with powdery raw materials is conveyed to one side of the support platform 101 by a conveyor belt that can lift the material height, and the height of the ton bag 7 is higher than the height of the support platform 101. The lifting belt of the ton bag 7 is hung through the hanging assembly 4, and then the ton bag 7 is hung. Then, the linear mechanism 5 drives the hanging assembly 4 and the ton bag 7 to move directly above the support platform 101. The flexible discharge tube at the bottom of the ton bag 7 is sleeved outside the feed pipe 201 of the storage tank 2, and the flexible discharge tube is tied tightly to the feed pipe 201 with a tightening rope. Then, the tied part at the top of the flexible discharge tube is opened. The powdery raw materials in the ton bag 7 will flow into the storage tank 2 due to gravity. During this process, the lifting mechanism 303 is controlled to push up and down both sides of the bottom of the ton bag 7 at a certain frequency through the pusher blocks 3, so that the ton bag 7 vibrates, and the rotating mechanism is controlled to drive the first rotating rod 103 and the second rotating rod 104 to rotate up and down, pat the two sides of the ton bag 7 and push the powdery raw materials in the ton bag 7, so that the powdery raw materials move, avoiding the blockage of the powdery raw materials at the discharge tube at the bottom of the ton bag 7, and effectively improving the feeding efficiency. After the feeding is completed, the second rotating rod 104 is controlled to rotate up and down to pat the two sides of the ton bag 7, so that the powdery raw materials adhering to the inner walls of the two sides of the ton bag 7 are separated from the side walls of the ton bag 7. After patting for a preset time, the rotating cylinder 6 is controlled to drive the ton bag 7 to rotate 90 degrees through the hanging assembly 4, so that the other two sides of the ton bag 7 face the pair of vertical plates 102. Then, the second rotating rod 104 is continuously controlled to rotate up and down to pat the two sides of the ton bag 7, so that the powdery raw materials adhering to the other two inner walls of the ton bag 7 are separated. At the same time, the pusher blocks 3 are continuously controlled to move up and down, so that the powdery raw materials that fall to the bottom of the ton bag 7 after separating from the side walls of the ton bag 7 vibrate up and down and fall into the storage tank 2, reducing raw material waste.

[0033] Specifically, refer to Figure 1 、 Figure 3 、 Figure 4, the linear mechanism 5 includes a lead screw 505, a slider 501, and a second motor 502. The slider 501 is slidably disposed between a pair of U-shaped slide rails 503. The pair of U-shaped slide rails 503 are fixed between a pair of vertical support plates 504. The lead screw 505 is rotatably connected between the pair of support plates 504. The lead screw 505 is threadedly connected to the slider 501. One end of the lead screw 505 is connected to the output shaft of the second motor 502. The vertical rod 401 passes through the slider 501 and is located between the pair of U-shaped slide rails 503, so that the vertical rod 401 can move along the length direction of the U-shaped slide rails 503 and can rotate under the drive of the rotary cylinder 6. More specifically, refer to Figure 3 , Figure 4 , a slide plate 601 is provided at the top of the pair of U-shaped slide rails 503. Limiting plates 6011 are provided at both ends of the slide plate 601. The pair of limiting plates 6011 are respectively abutted against the outer sides of the pair of U-shaped slide rails 503. The top of the vertical rod 401 passes through the slide plate 601 and is connected to the rotating end of the rotary cylinder 6. The rotary cylinder 6 is fixed on the slide plate 601 and is used to prevent the fixed end of the slide plate 601 and the rotary cylinder 6 from rotating. A limiting ring 4011 is coaxially arranged outside the vertical rod 401. The bottom of the limiting ring 4011 abuts against the slide plate 601 and is used to limit the downward movement of the vertical rod 401.

[0034] Specifically, refer to Figure 4 , the suspension assembly 4 includes a pair of suspension rods 402 that are cross-connected. Hooks 403 are provided at the ends of the suspension rods 402 and are used to hang the lifting belts of the ton bags 7. The middle parts of the suspension rods 402 are connected to the bottom of the vertical rod 401, so that the four hooks 403 at the ends of the suspension rods 402 can evenly bear the force after hanging the ton bags 7.

[0035] Specifically, refer to Figures 5 - 7, the rotating mechanism includes a gear ring 106 and a rack 301. A connecting shaft 107 is connected between two pairs of first rotating rods 103. The connecting shaft 107 is disposed through the vertical plate 102 along the length direction of the vertical plate 102. The gear ring 106 is coaxially connected to the middle of the connecting shaft 107. A first accommodating groove 1021 is formed in the middle of the top surface of the vertical plate 102. The gear ring 106 is located in the first accommodating groove 1021. A vertical second accommodating groove 1022 is formed in the middle of the inner side of the vertical plate 102. The rack 301 is slidably disposed in the second accommodating groove 1022 in the vertical direction. The rack 301 is meshed with the gear ring 106. The bottom of the rack 301 is connected to the pushing block 3 through a connecting rod 302. When the pushing block 3 moves upward to the maximum limit, the first rotating rod 103 rotates upward to the vertical state. When the pushing block 3 moves upward to the maximum limit, the second rotating rod 104 rotates downward to abut against the vertical plate 102. In this way, during the process of the lifting mechanism 303 driving the pushing block 3 to move up and down, the rack 301 can be driven to move up and down at the same time, and then the connecting shaft 107 and the first rotating rod 103 are driven to rotate through the gear ring 106, and there is no need to additionally provide a power source to control the rotation of the first rotating rod 103 and the second rotating rod 104.

[0036] Preferably, refer to Figure 8 , one end of the second rotating rod 104 passes through the first rotating rod 103 and is connected to the output shaft of a first motor 1041. A plurality of eccentric wheels 105 are arranged in an array along the length direction on the second rotating rod 104. When the feeding is completed, when controlling the second rotating rod 104 to rotate up and down to pat the side surface of the ton bag 7, control the first motor 1041 to drive the second rotating rod 104 and the eccentric wheels 105 to rotate. After the second rotating rod 104 rotates downward to contact the side surface of the ton bag 7, the rotation of the eccentric wheels 105 can cause the side surface of the ton bag 7 in contact to vibrate, so that the powdery raw material can be separated from the side wall of the ton bag 7 more quickly, improving the production efficiency.

[0037] In some embodiments, the first rotating rod 103 is set to a fixed length. If the length of the first rotating rod 103 is relatively long, when pushing the side surface of the ton bag 7, the distance that the side surface of the ton bag 7 is recessed inward will be relatively large, and the required driving force will be too large. If the length of the first rotating rod 103 is set to be relatively short, when patting the powdery raw material adhered to the side wall of the ton bag 7, the second rotating rod 104 may not be able to contact the recessed part of the side wall of the ton bag 7 because the side of the ton bag 7 lacks the support of the powdery raw material and is recessed inward.

[0038] Preferably, in one embodiment, refer to Figure 8, the first rotating rod 103 includes a front section 1031 and a rear section 1032. The front section 1031 is connected to the end of the connecting shaft 107. A sliding rod 1033 is disposed along the length direction on the front section 1031. One end of the sliding rod 1033 away from the front section 1031 is connected to the rear section 1032. The end of the second rotating rod 104 is connected to the rear section 1032. The sliding rod 1033 can move along the length direction of the front section 1031 to change the overall length of the first rotating rod 103. Specifically, a first spring 1034 is sleeved outside the sliding rod 1033. Two ends of the first spring 1034 are respectively connected to the front section 1031 and the rear section 1032. When the sliding rod 1033 is completely retracted into the front section 1031, the first spring 1034 is in a compressed state. When the first rotating rod 103 rotates upward to the vertical state, the second rotating rod 104 does not abut against the side of the ton bag 7. The front section 1031 is in a state of being pushed out by the first spring 1034, and the overall length of the first rotating rod 103 is the largest. When the first rotating rod 103 rotates downward to abut against the side of the ton bag 7, with the continuous downward rotation, the first rotating rod 103 will move towards the front section 1031 due to the thrust of the ton bag 7, automatically changing the distance from the connecting shaft 107, so as to avoid a large inward depression distance of the side of the ton bag 7 when the second rotating rod 104 pushes the side of the ton bag 7 during feeding, which requires too much driving force and is likely to cause damage to the ton bag 7; when it is necessary to pat the powdery raw materials adhered to the side wall of the ton bag 7, the sliding rod 1033 is in an extended state. Even if the periphery of the ton bag 7 is inwardly depressed because it is not supported by the powdery raw materials, the second rotating rod 104 can still contact the side wall of the ton bag 7, and the side wall of the ton bag 7 is vibrated through the eccentric wheel 105 to quickly shed the adhered powdery raw materials.

[0039] Preferably, referring to Figure 9A plurality of arc-shaped push pieces 8 are arranged in a circular array in the through hole 1011. A plurality of push rods 801 are arranged in a circular array with the through hole 1011 as the center on the support platform 101. One end of each of the push rods 801 extends into the through hole 1011 and is connected to the plurality of arc-shaped push pieces 8. The plurality of push rods 801 are arranged to reciprocate radially along the through hole 1011. Specifically, the plurality of push rods 801 can be driven to reciprocate by a plurality of push cylinders. The curvature of the arc-shaped push piece 8 matches the curvature of the outer side of the feed pipe 201. When the plurality of arc-shaped push pieces 8 are closed, the plurality of arc-shaped push pieces 8 enclose and form a ring, and abut against the feed pipe 201, so as to clamp the flexible discharge barrel at the bottom of the ton bag 7 to the outside of the feed pipe 201 of the storage tank 2. This arrangement can automatically clamp the flexible discharge barrel at the bottom of the ton bag 7, further reducing manual operation. Before the rotating cylinder is used to drive the ton bag 7 to rotate, the multiple push rods 801 can be controlled to move away from the feed pipe 201, so that the arc-shaped push piece 8 cancels the clamping of the flexible discharge barrel at the bottom of the ton bag 7. After the ton bag 7 completes its rotation, the multiple push rods 801 are controlled to move toward the feed pipe 201, pushing the arc-shaped push piece 8 to clamp the flexible discharge barrel at the bottom of the ton bag 7. This method can prevent the flexible discharge barrel at the bottom of the ton bag 7 from rotating 90 degrees when the ton bag is clamped, causing the upper part of the flexible discharge barrel to rotate and sink inward, thereby affecting the falling of powdery raw materials into the storage tank 2.

[0040] For details, see Figure 10 、 Figure 11 The bottom of the support platform 101 is provided with a plurality of strip grooves 1013 in a circular array with the through hole 1011 as the center. The plurality of push rods 801 are respectively located in the plurality of strip grooves 1013. A second spring 802 is sleeved on one end of the push rod 801 away from the arc-shaped push piece 8. The two ends of the second spring 802 are respectively connected to the wall of the strip groove 1013 and the side of the push rod 801. When the spring is in a natural state, there is a preset distance between the arc-shaped push piece 8 and the feeding tube 201. The outer sides of the arc-shaped push piece 8 are connected to the push rod 801 through the arc-shaped protrusion 803. The bottom of the arc-shaped protrusion 803 protrudes from the bottom of the support platform 101. A push ring 9 is provided at the bottom of the support platform 101, which is axially aligned with the through hole 1011. A plurality of push blocks 901 are arranged in a circular array on the inside of the push ring 9. The outside of the push ring 9 is connected to the movable end of a linear cylinder 10. The fixed end of the linear cylinder 10 is hinged to the bottom of the support platform 101. When the movable end of the linear cylinder 10 is fully pushed out, the plurality of push blocks 901 rotate to respectively abut against the plurality of arc-shaped protrusions 803, and the plurality of arc-shaped push pieces 8 are completely closed. When the movable end of the linear cylinder 10 is fully retracted, the push blocks 901 rotate to disengage from the arc-shaped protrusions 803, and the second spring 802 is in a natural state. Using only a single power source, the linear cylinder 10, it is possible to simultaneously control the reciprocating motion of the plurality of push rods 801, thereby clamping or releasing the flexible discharge barrel at the bottom of the ton bag 7.

[0041] For more details, seeFigure 11 , a retaining ring 11 is provided on the outer side of the pushing ring 9, and a retaining piece 1102 is provided at the bottom of the retaining ring 11 for restricting the up and down movement of the pushing ring 9, so that the pushing ring 9 can only rotate within the retaining ring 11. An arc-shaped notch 1101 is provided on the circumferential side of the retaining ring 11 for accommodating the connecting part of the pushing ring 9 and the linear cylinder 10. Specifically, the radian of the arc-shaped notch 1101 is greater than the maximum rotation angle of the pushing ring 9. When the movable end of the linear cylinder 10 is fully retracted, the hinge part of the movable end of the linear cylinder 10 and the pushing ring 9 moves to one end of the arc-shaped notch 1101.

[0042] The above are only the preferred embodiments of the present invention and do not represent the only or limit the present invention. Those skilled in the art should understand that various changes or equivalent substitutions made to the present invention without departing from the scope of the present invention all fall within the scope of protection of the present invention.

Claims

1. A powder material feeding device, characterized in that, Comprising: A material shooting mechanism (1), including a pair of vertical plates (102) and two pairs of first rotating rods (103). The pair of vertical plates (102) are symmetrically arranged on a support platform (101). The two pairs of first rotating rods (103) are respectively hinged to the tops on both sides of the pair of vertical plates (102). A second rotating rod (104) is rotatably connected between each pair of first rotating rods (103). The first rotating rods (103) are driven to rotate by a rotating mechanism. A groove (1012) is formed in the middle of the top surface of the support platform (101). The groove (1012) is located between the pair of vertical plates (102). A through hole (1011) is provided in the middle of the groove (1012) for accommodating the feed pipe (201) of the storage tank (2). A pair of pushing blocks (3) are slidably arranged along the vertical direction on both sides of the groove (1012). A pair of vertical lifting mechanisms (303) are provided at the bottom of the support platform (101). The telescopic ends of the pair of lifting mechanisms (303) pass through the bottom of the support platform (101) and are connected to the pair of pushing blocks (3). A linear mechanism (5) is erected above the support platform (101). The moving direction of the movable end of the linear mechanism (5) is parallel to the vertical plate (102). A vertical rod (401) is passed through the movable end of the linear mechanism (5). The bottom of the vertical rod (401) is connected to a hanging assembly (4). The hanging assembly (4) is used for hanging the ton bag (7). The top of the vertical rod (401) is connected to the rotating end of a rotating cylinder (6). When the hanging assembly (4) hanging the ton bag (7) moves directly above the support plate (504), the ton bag (7) is in a suspended state, and the discharge port at the bottom of the ton bag (7) is aligned with the feed pipe (201).

2. The powder material feeding device according to claim 1, characterized in that, The linear mechanism (5) includes a lead screw (505), a slider (501), and a second motor (502). The slider (501) is slidably arranged between a pair of U-shaped slide rails (503). The pair of U-shaped slide rails (503) are fixed between a pair of vertical support plates (504). The lead screw (505) is rotatably connected between the pair of support plates (504). The lead screw (505) is threadedly connected to the slider (501). One end of the lead screw (505) is connected to the output shaft of the second motor (502). The vertical rod (401) is passed through the slider (501), and the vertical rod (401) is located between the pair of U-shaped slide rails (503).

3. The powder material feeding device according to claim 2, wherein, A slide plate (601) is provided at the top of the pair of U-shaped slide rails (503). Limit plates (6011) are provided at both ends of the slide plate (601). The pair of limit plates (6011) are respectively abutted against the outer sides of the pair of U-shaped slide rails (503). The top of the vertical rod (401) passes through the slide plate (601) and is connected to the rotating end of the rotating cylinder (6). The rotating cylinder (6) is fixed on the slide plate (601). A limit ring (4011) is coaxially arranged outside the vertical rod (401). The bottom of the limit ring (4011) is abutted against the slide plate (601).

4. A powder material feeding device according to claim 1, characterized in that, The rotating mechanism includes a gear ring (106) and a rack (301), and a connecting shaft (107) is connected between the two pairs of first rotating rods (103). The connecting shaft (107) is arranged on the vertical plate (102) along the length direction of the vertical plate (102). The gear ring (106) is coaxially connected to the middle of the connecting shaft (107). A first accommodating groove (1021) is opened in the middle of the top surface of the vertical plate (102). The gear ring (106) is located in the first accommodating groove (1021). A vertical groove (1021) is opened in the middle of the inner side of the vertical plate (102). The rack (301) is slidably arranged in the second accommodating groove (1022) in the vertical direction, the rack (301) is meshed and connected with the gear ring (106), and the bottom of the rack (301) is connected with the push block (3) through the connecting rod (302). When the push block (3) moves upward to the maximum limit, the first rotating rod (103) rotates upward to a vertical state. When the push block (3) moves upward to the maximum limit, the second rotating rod (104) rotates downward to abut against the vertical plate (102).

5. The powder material feeding device according to claim 4, characterized in that, One end of the second rotating rod (104) passes through the outside of the first rotating rod (103) and is connected to the output shaft of a first motor (1041). A plurality of eccentric wheels (105) are arranged in an array along the length direction on the second rotating rod (104).

6. The powder material feeding device according to claim 5, characterized in that, The first rotating rod (103) includes a front section (1031) and a rear section (1032), the front section (1031) is connected to the end of the connecting shaft (107), a sliding rod (1033) is provided on the front section (1031) along the length direction, the end of the sliding rod (1033) away from the front section (1031) is connected to the rear section (1032), the end of the second rotating rod (104) is connected to the rear section (1032), and a first spring (1034) is provided on the outer sleeve of the sliding rod (1033), the two ends of the first spring (1034) are respectively connected to the front section (1031) and the rear section (1032), and when the sliding rod (1033) is fully retracted into the front section (1031), the first spring (1034) is in a compressed state.

7. A powder material feeding device according to claim 1, characterized in that, A plurality of arc-shaped push pieces (8) are arranged in a circular array in the through hole (1011), and a plurality of push rods (801) are arranged on the support platform (101) in a circular array with the through hole (1011) as the center. One end of the plurality of push rods (801) respectively extends into the through hole (1011) and is connected to the plurality of arc-shaped push pieces (8). The plurality of push rods (801) are arranged to reciprocate radially along the through hole (1011). The curvature of the arc-shaped push piece (8) matches the curvature of the outer side of the feed pipe (201). When the plurality of arc-shaped push pieces (8) are closed, the plurality of arc-shaped push pieces (8) are surrounded to form a ring and abut against the feed pipe (201).

8. The powder material feeding device according to claim 7, characterized in that, A plurality of strip-shaped grooves (1013) are arranged in a circumferential array centered on a through hole (1011) at the bottom of the support table (101). A plurality of push rods (801) are respectively located in the plurality of strip-shaped grooves (1013). A second spring (802) is sleeved on the end of the push rod (801) away from the arc-shaped push piece (8). Two ends of the second spring (802) are respectively connected to the wall of the strip-shaped groove (1013) and the periphery of the push rod (801). When the spring is in a natural state, there is a preset distance between the arc-shaped push piece (8) and the feed pipe (201). The outer sides of the arc-shaped push pieces (8) are all connected to the push rods (801) through arc-shaped protrusions (803). The bottom of the arc-shaped protrusion (803) protrudes from the bottom of the support table (101). A push ring (9) with the same axial direction as the through hole (1011) is rotatably arranged at the bottom of the support table (101). A plurality of push blocks (901) are arranged in a circumferential array on the inner side of the push ring (9). The outer side of the push ring (9) is connected to the movable end of a linear cylinder (10). The fixed end of the linear cylinder (10) is hinged to the bottom of the support table (101). When the movable end of the linear cylinder (10) is fully pushed out, the plurality of push blocks (901) rotate to respectively abut against the plurality of arc-shaped protrusions (803), and the plurality of arc-shaped push pieces (8) are fully closed. When the movable end of the linear cylinder (10) is fully retracted, the push blocks (901) rotate to disengage from the arc-shaped protrusions (803), and the second spring (802) is in a natural state.

9. The powder material feeding device according to claim 8, characterized in that, A retaining ring (11) is arranged on the outer side of the push ring (9). A retaining piece (1102) is arranged at the bottom of the retaining ring (11). An arc-shaped notch (1101) is arranged on the periphery of the retaining ring (11). The radian of the arc-shaped notch (1101) is greater than the maximum rotation angle of the push ring (9). When the movable end of the linear cylinder (10) is fully retracted, the hinged part of the movable end of the linear cylinder (10) and the push ring (9) moves to one end of the arc-shaped notch (1101).

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