A powder material feeding device

Abstract

The present application provides a powder material feeding device, which belongs to the field of material transfer and delivery technology, including: 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 of the two sides of the pair of vertical plates, and each pair of first rotating rods is rotatably connected to a second rotating rod, a groove is provided in the middle of the top surface of the support platform, the groove is between the pair of vertical plates, and a through hole is provided in the middle of the groove for accommodating the feed pipe of the storage tank; a pair of pusher blocks are slidably arranged on both sides of the groove in the vertical direction, and a pair of vertical lifting mechanisms are provided at the bottom of the support platform; a linear mechanism is erected above the support platform, the movable end of the linear mechanism is penetrated by a vertical rod, the bottom of the vertical rod is connected to a suspension assembly, and the top of the vertical rod is connected to the rotating end of a rotary cylinder. The device can automatically pat the ton bag and make the ton bag shake up and down, and can solve the blockage problem during feeding without manual assistance.

Description

Technical Field

[0001] The 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 lithium batteries is lithium iron phosphate, which is prepared by first mixing powdered raw materials such as phosphorus, iron, lithium, and carbon, and then preparing them through processes such as wet iron removal, spray drying, and high-temperature sintering in a kiln. At present, in order to facilitate the transfer of raw materials, powdered raw materials are usually packaged in ton bags. The top and bottom of the ton bags are respectively provided with a feed port and a discharge port. The discharge port is also provided with a flexible discharge barrel, which is conveniently installed outside the feed pipe of the storage tank to reduce dust escape during powder transfer. Before mixing the raw materials, the ton bag containing the raw materials needs to be transported to the top of a storage tank that can discharge materials in a certain amount. Then, the flexible discharge barrel at the bottom of the ton bag is installed outside the feed pipe of the storage tank and fastened to the outside of the feed pipe of the storage tank with a tightening rope. Then, the tightening rope at the top of the storage barrel is untied, and the powder in the ton bag will fall into the storage tank due to gravity. Some smaller powdery materials, due to their poor fluidity, can cause blockages when feeding into the storage tank. This requires tapping and shaking the bag to keep the powdery material flowing into the tank, which is labor-intensive. After the bag is filled, the powdery material may still cling to the sides and bottom of the bag, requiring manual tapping to get it into the tank. This also requires manual untying of the tie rope to transfer the empty bag. Therefore, improvements are necessary. Summary of the Invention

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

[0004] In order to achieve the above object, the present invention adopts the following technologies:

[0005] A powder material feeding device, comprising:

[0006] The material-beating mechanism includes 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 of the two 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 provided 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.

[0007] A pair of pusher blocks are slidably arranged on both sides of the groove in the vertical direction. 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 pusher blocks.

[0008] The linear mechanism is mounted above the support platform. The moving direction of the movable end of the linear mechanism is parallel to the vertical plate. A vertical rod is passed through the movable end of the linear mechanism. The bottom of the vertical rod is connected to a suspension assembly. The suspension assembly is used to hang ton bags. The top of the vertical rod is connected to the rotating end of a rotating cylinder. When the suspension assembly with the ton bag is moved to the top of 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.

[0009] Furthermore, one end of the second rotating rod passes through the outside of the first rotating rod and is connected to an output shaft of the first motor. A plurality of eccentric wheels are arranged in an array along the length direction on the second rotating rod.

[0010] Furthermore, the linear mechanism includes a screw rod, 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 screw rod is rotatably connected between the pair of support plates, the screw rod is threadedly connected to the slider, one end of the screw rod is connected to the output shaft of the second motor, the vertical rod is passed through the slider, and the vertical rod is located between the pair of U-shaped slide rails.

[0011] Furthermore, a slide plate is provided on the top of a pair of U-shaped slide rails, and a limit plate is provided at both ends of the slide plate. The pair of limit 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 slide plate and is connected to the rotating end of the rotating cylinder. The rotating cylinder is fixed on the slide plate. A limit ring is coaxially provided outside the vertical rod, and the bottom of the limit ring abuts against the slide plate.

[0012] Furthermore, the suspension assembly includes a pair of cross-connected suspension rods, each end of which is provided with a hook for hanging the lifting belt of the ton bag, and the middle of the suspension rod is connected to the bottom of the vertical rod.

[0013] Furthermore, the rotating mechanism includes a ring gear and a rack, and a connecting shaft is connected between the two pairs of first rotating rods. The connecting shaft is passed through the vertical plate along the length direction of the vertical plate, and the ring gear is coaxially connected to the middle part of the connecting shaft. A first accommodating groove is opened in the middle part of the top surface of the vertical plate, and the ring gear is in the first accommodating groove. A vertical second accommodating groove is opened in the middle part of the inner side of the vertical plate, and the rack is slid in the second accommodating groove along the vertical direction. The rack is meshed with the ring gear, and 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 the vertical plate.

[0014] Furthermore, 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 passed 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, and a first spring is provided on the outer sleeve of the sliding rod, and the two ends of the first spring are respectively connected to the front section and the rear section. When the sliding rod is fully retracted into the front section, the first spring is in a compressed state.

[0015] 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.

[0016] 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.

[0017] 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.

[0018] The beneficial effects of the present invention are:

[0019] 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.

[0020] 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;

[0021] 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

[0022] Figure 1 This is a three-dimensional diagram of the overall structure of the device according to the embodiment of the present application.

[0023] Figure 2 for Figure 1 Enlarged view of part A in the middle.

[0024] Figure 3 This is a three-dimensional diagram of the overall structure of the device after hanging ton bags in an embodiment of the present application.

[0025] Figure 4 This is a three-dimensional diagram of the connection structure between the suspension assembly and the rotating cylinder in the embodiment of the present application.

[0026] Figure 5 This is a cross-sectional view of a partial structure of the device according to an embodiment of the present application.

[0027] Figure 6 This is a structural stereogram of the material-shooting mechanism in the device of the embodiment of the present application.

[0028] Figure 7 for Figure 6 Enlarged view of part B in the middle.

[0029] Figure 8 It is a partial structural stereoscopic diagram of the material-shooting mechanism in the device of the embodiment of the present application.

[0030] Figure 9 It is a partial three-dimensional diagram of the device according to the embodiment of the present application.

[0031] Figure 10 This is a three-dimensional diagram of another part of the device according to an embodiment of the present application.

[0032] Figure 11 for Figure 10 Enlarged view of middle C.

[0033] Figure 1: Material slapping mechanism-1, material storage tank-2, material pushing block-3, suspension assembly-4, linear mechanism-5, rotary cylinder-6, ton bag-7, arc push piece-8, push 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 tube 201, rack 301, connecting rod 302, lifting mechanism 303, vertical rod 401, hanging rod 402, hook 403, limiting ring 4011, slider 501, second motor 502, U-shaped slide rail 503, support plate 504, screw 505, slide plate 601, limiting plate 6011, push rod 801, second spring 802, arc-shaped protrusion 803, strip groove 1013, push block 901, arc-shaped notch 1101, blocking piece 1102. DETAILED DESCRIPTION

[0034] To make the objectives, technical solutions and advantages of the embodiments of the present invention clearer, the embodiments of the present invention are described in detail below with reference to the accompanying drawings. However, the embodiments described in the present invention are only part of the embodiments of the present invention, rather than all the embodiments.

[0035] The present application provides a powder material feeding device, such as Figures 1-11 As shown, it includes a material-beating mechanism 1, a material-pushing block 3, a linear mechanism 5, etc.

[0036] Specifically, the patting 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. Each pair of first rotating rods 103 is rotatably connected to the second rotating rod 104. The first rotating rod 103 is driven to rotate by the rotating mechanism, which is used to drive the second rotating rod 104 to pat the side of the ton bag 7 and push the powder in the ton bag 7. A groove 1012 is provided 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 101 for accommodating the feed pipe 201 of the storage tank 2. Specifically, the storage tank 2 can be mounted on the bottom of the support platform 101, and the feed pipe 201 of the storage tank 2 is coaxially arranged inside the through hole 1011.

[0037] There is a pair of pushing blocks 3, which are 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 with the pair of pushing blocks 3, which are used to drive the pushing blocks 3 to move upward to push up the two sides of the bottom of the ton bag 7, and then put the ton bag 7 down to make the ton bag 7 shake up and down.

[0038] The linear mechanism 5 is mounted 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 suspension component 4. The suspension component 4 is used to hang the ton bag 7. The top of the vertical rod 401 is connected to the rotating end of a rotary cylinder 6. When the suspension component 4 with the ton bag 7 is moved to the top of 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.

[0039] 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 made higher than the height of the support platform 101, and the lifting belt of the ton bag 7 is hung by the hanging component 4, and then the ton bag 7 is hung, and then the hanging component 4 and the ton bag 7 are driven by the linear mechanism 5 to move to the top of the support platform 101, and the flexible discharge barrel at the bottom of the ton bag 7 is sleeved onto the outside of the feed pipe 201 of the storage tank 2, and the flexible discharge barrel is fastened to the feed pipe 201 with a tightening rope, and then the flexible discharge barrel is The tied part at the top of the barrel is opened, and the powdery raw materials in the ton bag 7 will flow into the storage tank 2 due to gravity. In this process, the lifting mechanism 303 is controlled to maintain a certain frequency to push the two sides of the bottom of the ton bag 7 upward through the pushing block 3, so that the ton bag 7 shakes, and the rotating mechanism is controlled to drive the first rotating rod 103 and the second rotating rod 104 to rotate up and down, patting the two sides of the ton bag 7 and pushing the powdery raw materials in the ton bag 7, so that the powdery raw materials move, avoiding the powdery raw materials from being blocked at the discharge barrel at the bottom of the ton bag 7, and can effectively improve the feeding efficiency. After the feeding is completed, the second rotating rod 104 is controlled to rotate up and down to slap the two sides of the ton bag 7, so that the powdery raw materials adhering to the inner side walls of the ton bag 7 are separated from the side walls of the ton bag 7. After slapping for a preset time, the rotating cylinder 6 is controlled to drive the ton bag 7 to rotate 90 degrees through the suspension component 4, so that the other two sides of the ton bag 7 face a pair of vertical plates 102, and then the second rotating rod 104 is continued to be controlled to rotate up and down to slap the two sides of the ton bag 7, so that the powdery raw materials adhering to the other two side walls of the ton bag 7 are separated. At the same time, the pushing block 3 is continued to be controlled to move up and down, so that the powdery raw materials that have detached from the side walls of the ton bag 7 and fallen to the bottom of the ton bag 7 are shaken up and down and fall into the storage tank 2, thereby reducing raw material waste.

[0040] For details, see Figure 1 、 Figure 3 、 Figure 4The linear mechanism 5 includes a screw rod 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 screw rod 505 is rotatably connected between the pair of support plates 504. The screw rod 505 is threadedly connected to the slider 501. One end of the screw rod 505 is connected to the output shaft of the second motor 502. The vertical rod 401 is passed 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. For more details, see Figure 3 、 Figure 4 A slide plate 601 is provided on the top of a pair of U-shaped slide rails 503, and a limit plate 6011 is 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 to prevent the slide plate 601 and the fixed end of the rotating cylinder 6 from rotating. A limit ring 4011 is coaxially provided on the outside of the vertical rod 401, and the bottom of the limit ring 401 is abutted against the slide plate 601 to limit the downward movement of the vertical rod 401.

[0041] For details, see Figure 4 The suspension assembly 4 includes a pair of cross-connected suspension rods 402, and the ends of the suspension rods 402 are provided with hooks 403 for hanging the lifting belt of the ton bag 7. The middle part of the suspension rod 402 is connected to the bottom of the vertical rod 401, so that the four hooks 403 at the ends of the suspension rod 402 can be evenly stressed after hanging the ton bag 7.

[0042] For details, see Figure 5-Figure 7The rotating mechanism includes a ring gear 106 and a rack 301. A connecting shaft 107 is connected between the two pairs of first rotating rods 103. The connecting shaft 107 is provided on the vertical plate 102 along the length direction of the vertical plate 102. The ring gear 106 is coaxially connected to the middle of the connecting shaft 107. A first receiving groove 1021 is provided in the middle of the top surface of the vertical plate 102. The ring gear 106 is located in the first receiving groove 1021. A vertical groove 102 is provided in the middle of the inner side of the vertical plate 102. The rack 301 is vertically slidably disposed in the second accommodating groove 1022. The rack 301 is meshed with the ring gear 106. The bottom of the rack 301 is connected to the pusher block 3 via the connecting rod 302. When the pusher block 3 moves upward to its maximum limit, the first rotating rod 103 rotates upward to a vertical position. When the pusher block 3 moves upward to its maximum limit, the second rotating rod 104 rotates downward to abut the vertical plate 102. In this way, the lifting mechanism 303 can simultaneously drive the rack 301 up and down in the process of driving the pusher block 3 to move up and down, thereby driving the connecting shaft 107 and the first rotating rod 103 to rotate through the ring gear 106. No additional power source is required to control the rotation of the first rotating rod 103 and the second rotating rod 104.

[0043] Preferably, see Figure 8 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. After the feeding is completed, when the second rotating rod 104 is controlled to rotate up and down to beat the side of the ton bag 7, the first motor 1041 is controlled to drive the second rotating rod 104 and the eccentric wheel 105 to rotate. After the second rotating rod 104 rotates downward to contact the side of the ton bag 7, the rotation of the eccentric wheel 105 causes the contacted side of the ton bag 7 to vibrate, so that the powdery raw material can be separated from the side wall of the ton bag 7 faster, thereby improving production efficiency.

[0044] In some embodiments, the first rotating rod 103 is set to a fixed length. If the length of the first rotating rod 103 is longer, when pushing the side of the ton bag 7, the side of the ton bag 7 will be recessed inward by a larger distance, and the required driving force is too large. If the length of the first rotating rod 103 is set to be relatively short, when tapping the powdery raw materials adhered to the side wall of the ton bag 7, the ton bag 7 may be recessed inward due to lack of support from the powdery raw materials on the sides thereof, making it impossible for the second rotating rod 104 to contact the recessed portion of the side wall of the ton bag 7.

[0045] Preferably, in one embodiment, see Figure 8The 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 along the length of the front section 1031. 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. The sliding rod 1033 can move along the length of the front section 1031 to change the overall length of the first rotating rod 103. Specifically, 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. When the sliding rod 1033 is fully retracted into the front section 1031, the first spring 1034 is in a compressed state. When the first rotating rod 103 rotates upward to a vertical state, the second rotating rod 104 does not abut against the side of the ton bag 7, and the front section 1031 is in a state of being pushed out by the first spring 1034. 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, as it continues to rotate downward, the first rotating rod 103 will move toward the front section 1031 due to the thrust of the ton bag 7, and automatically change the distance between it and the connecting shaft 107 to avoid the second rotating rod 103 from being in contact with the side of the ton bag 7 when feeding. When 104 pushes the side of the ton bag 7, the side of the ton bag 7 will be recessed inward by a large distance, and the required driving force is too large, which can easily cause the ton bag 7 to be damaged; 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 side of the ton bag 7 is recessed inward due to lack of support from the powdery raw materials, the second rotating rod 104 can still contact the side wall of the ton bag 7, and shake the side wall of the ton bag 7 through the eccentric wheel 105, so that the powdery raw materials adhered to it fall off quickly.

[0046] Preferably, see 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.

[0047] 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.

[0048] For more details, see Figure 11 A baffle ring 11 is provided on the outside of the push ring 9, and a baffle 1102 is provided at the bottom of the baffle ring 11, which is used to limit the up and down movement of the push ring 9 so that the push ring 9 can only rotate within the baffle ring 11. An arc-shaped notch 1101 is provided on the circumference of the baffle ring 11 to accommodate the connection between the push ring 9 and the linear cylinder 10. Specifically, the curvature 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 between the movable end of the linear cylinder 10 and the push ring 9 moves to one end of the arc-shaped notch 1101.

[0049] The above description is only a preferred embodiment of the present invention and is not intended to be the only one or to limit the present invention. It should be understood by those skilled in the art that various changes or equivalent replacements made to the present invention without departing from the scope of the present invention are within the scope of protection of the present invention.

Claims

1. A powder material feeding device, characterized in that: include: The material-snapping mechanism (1) comprises a pair of vertical plates (102) and two pairs of first rotating rods (103), wherein the pair of vertical plates (102) are symmetrically arranged on a support platform (101), and the two pairs of first rotating rods (103) are respectively hinged to the tops of both sides of the pair of vertical plates (102), and a second rotating rod (104) is rotatably connected between each pair of first rotating rods (103), and the first rotating rods (103) are driven to rotate by a rotating mechanism, and a groove (1012) is provided in the middle of the top surface of the support platform (101), and 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 a feeding pipe (201) of the storage tank (2); A pair of pusher blocks (3) are slidably arranged on both sides of the groove (1012) in a vertical direction, and 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); A linear mechanism (5) is mounted 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 suspension assembly (4). The suspension assembly (4) is used to suspend a ton bag (7). The top of the vertical rod (401) is connected to the rotating end of a rotary cylinder (6). When the suspension assembly (4) with the ton bag (7) is moved to the top of 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. A powder material feeding device according to claim 1, characterized in that: The linear mechanism (5) comprises a screw rod (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 screw rod (505) is rotatably connected between the pair of support plates (504); the screw rod (505) is threadedly connected to the slider (501); one end of the screw rod (505) is connected to the output shaft of the second motor (502); a 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. A powder material feeding device according to claim 2, characterized in that: A slide plate (601) is provided on the top of a pair of U-shaped slide rails (503), and a limit plate (6011) is provided at both ends of the slide plate (601). The pair of limit plates (6011) are respectively in contact with 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). A limit ring (4011) is coaxially provided on the outside of the vertical rod (401), and the bottom of the limit ring (4011) is in contact with 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. A 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. A 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. A powder material feeding device according to claim 7, characterized in that: 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). The end of the push rod (801) away from the arc-shaped push piece (8) is sleeved with a second spring (802). The two ends of the second spring (802) are respectively connected to the wall of the strip groove (1013) and the peripheral 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 feed pipe (201). The outer side of the arc-shaped push piece (8) is 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). The bottom of the support platform (101) is rotatably provided with a push ring (9) having the same axial direction as the through hole (1011), and the inner side of the push ring (9) is provided with a plurality of push blocks (901) in a circular array. The outer side of the push ring (9) is connected to the movable end of a linear cylinder (10), and 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 block (901) rotates to disengage from the arc-shaped protrusion (803), and the second spring (802) is in a natural state.

9. A powder material feeding device according to claim 8, characterized in that: A retaining ring (11) is provided on the outside of the push ring (9), a retaining plate (1102) is provided on the bottom of the retaining ring (11), and an arc-shaped notch (1101) is provided on the circumference of the retaining ring (11). The arc 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 hinge portion between 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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