A high-precision storage and batching system

Abstract

The present invention discloses an adjustable-caliber discharging device and a high-precision storage and batching system containing the same, comprising a drive assembly, a batching disk with a discharge port, and a plurality of adjustment blocks arranged in a circular array with the discharge port as the center and the sides of which are sequentially fitted together. The batching disk limits the axial position of the adjustment block, and each adjustment block comprises a first side surface and a second side surface intersecting at a first vertex angle. The first side surfaces and second side surfaces of two adjacent adjustment blocks fit together, and the first side surfaces or the second side surfaces of the adjustment blocks and the first vertex angle of each adjustment block form an adjustment port. The drive assembly can drive each adjustment block to move synchronously, so that the adjustment port expands or contracts. When the first vertex angles of each adjustment block coincide, the adjustment port closes the discharge port. The adjustable-caliber discharging device of the present invention can accurately control the amount of material dropped, adapt to the batching requirements of different materials, and occupies a small area, can shorten the material conveying distance, and reduce the batching time.

Description

Technical Field

[0001] The present invention relates to the technical field of material storage and proportioning, and in particular to a material discharging device with adjustable caliber and a high-precision storage and proportioning system comprising the same, which are used in the field of ternary positive electrode material production. Background Art

[0002] With the development of energy storage and power lithium batteries, lithium batteries have entered the TWH era. The industry's growth has driven a surge in the production of positive and negative electrode materials for lithium batteries. However, this expansion has also led to issues that hinder the industry's high-quality development. The current process for batching lithium battery positive electrode materials generally lacks precision, significantly impacting the stability and consistency of high-quality products.

[0003] In addition, the existing batching process chain is long, the material flow is slow, which increases the batching time. At the same time, multiple equipment increases the possibility of metal foreign matter being introduced. For different series of materials, the same set of equipment cannot adapt to different batching requirements. Summary of the Invention

[0004] In order to solve the technical problem that the existing lithium battery positive electrode material process has low ingredient accuracy, which has a great impact on the stability and consistency of high-quality products, the present invention provides an adjustable caliber discharge device and a high-precision storage and ingredient system containing the same to solve the above problems.

[0005] The present invention proposes an adjustable-caliber discharging device, comprising a driving assembly, a material distribution disk with a discharging port, and a plurality of adjustment blocks arranged in a circular array with the discharging port as the center and the side surfaces sequentially fitted together. The material distribution disk limits the axial position of the adjustment block, and each adjustment block comprises a first side surface and a second side surface intersecting at a first vertex angle. The first side surfaces and the second side surfaces of two adjacent adjustment blocks fit together, and the first side surface or the second side surface of the adjustment block and the first vertex angle of each adjustment block form an adjustment port; the driving assembly can drive each adjustment block to move synchronously to expand or shrink the adjustment port, and when the first vertex angles of each adjustment block coincide, the adjustment port closes the discharging port.

[0006] Furthermore, each adjustment block has a rotation center, and the drive assembly can drive each adjustment block to rotate synchronously relative to its own rotation center, and drive each rotation center to slide along the sliding track, so that the side surfaces of adjacent adjustment blocks are always in contact.

[0007] Furthermore, the driving assembly is a manipulator that drives each rotation center to perform rotational motion and translational motion respectively.

[0008] Furthermore, the rotation center is a cylindrical pin located at one end of the adjusting block, and a slider is provided at the other end of the adjusting block. The driving assembly includes a first slide groove located on the ingredient disk and cooperating with the slider and a second slide groove cooperating with the cylindrical pin. The sliding track is located in the second slide groove. At least one of the first slide groove and the second slide groove can rotate around the center of the discharge port, and there is relative rotational motion between the two. The contact surface between the slider and the first slide groove is a plane.

[0009] Furthermore, the ingredient plate includes an upper plate, a lower plate and a middle plate, the upper plate is fixed to the lower plate, the first slide is located in the middle plate, the second slide is located in the lower plate, and the drive assembly includes a rotating motor that drives the middle plate to rotate.

[0010] Furthermore, the first chute and the second chute are both linear chute, and a plurality of first chute forms a regular polygonal structure.

[0011] The present invention also proposes a high-precision storage and batching system, comprising a bag opening mechanism, a batching mechanism and a mixing mechanism connected in sequence, wherein the bag opening mechanism opens ton bags containing different materials, the batching mechanism quantitatively conveys different materials to the mixing mechanism, and the mixing mechanism mixes and stirs multiple materials; the above-mentioned adjustable caliber discharging device is located at the outlet of the batching mechanism.

[0012] Furthermore, the bag opening mechanism is a plurality of bag opening stations, and the batching mechanism is a silo connected to the bag opening stations in a one-to-one correspondence, and the outlet of each silo is connected to a discharging device with an adjustable caliber.

[0013] The system also includes a dust removal and return mechanism. A sealing cylinder is provided outside the bag pressing part of the bag opening station. The inlet of the dust removal and return mechanism is connected to the inside of the bag opening station through the sealing cylinder, and the outlet of the dust removal and return mechanism is connected to the silo. The dust removal and return mechanism returns the material leaked at the connection between the bag opening mechanism and the batching mechanism into the silo.

[0014] Furthermore, the bag opening station includes a bag supporting plate, a bag clamping assembly and a bag supporting plate, a bag clamping assembly and a barrel arranged in sequence from top to bottom, and the barrel is connected to a bag pressing cylinder; the sealing cylinder connects the fixed part of the bag clamping assembly and the barrel, and the bag clamping assembly, the sealing cylinder, the ton bag and the barrel form a dust removal chamber, and the bag clamping assembly includes two clamping plates that can move relative to each other. When the bag clamping assembly clamps the ton bag, a clamping opening is left between the two clamping plates.

[0015] Furthermore, the bag clamping assembly also includes a swing arm and a bag clamping cylinder connected to the clamping plates in a one-to-one correspondence. The rotating shaft of the swing arm is rotatably connected to the bag clamping bottom plate. The bag clamping cylinder and the clamping plate are respectively connected to both sides of the swing arm, and the clamping plate is fixed to the swing arm; the clamping plate includes a clamping section and support sections located at both ends of the clamping section. The clamping sections of the two clamping plates form a clamping opening. When the bag clamping assembly is in a clamping state, the support sections of the two clamping plates are staggered up and down.

[0016] The beneficial effects of the present invention are:

[0017] (1) The adjustable-caliber discharging device of the present invention can accurately control the amount of material dropped, adapt to the batching requirements of different materials, and occupies a small area, which can shorten the material transportation distance and reduce the batching time.

[0018] (2) The batching system of the present invention is connected with a dust removal and return mechanism between the bag opening station and the silo, which can transport the materials leaked during the bag opening and blanking process to the silo, thereby improving the sealing of the system and avoiding the possibility of the introduction of metal foreign matter.

[0019] (3) In the present invention, when the bag clamping assembly is in the clamping state, a clamping opening is left between the two clamping plates, thereby reducing the shortening of the ton bag length and making it easier for the ton bag to be put on the barrel. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] The present invention will be further described below with reference to the accompanying drawings and examples.

[0021] Figure 1 This is an exploded view of the adjustable caliber discharging device of the present invention;

[0022] Figure 2 This is a schematic diagram of the internal structure of the adjustable caliber discharging device of the present invention;

[0023] Figure 3 is a front view of the intermediate disk of the present invention;

[0024] Figure 4 This is a schematic diagram of the adjustable-diameter discharging device of the present invention when the adjustment port is fully opened;

[0025] Figure 5 This is a schematic diagram of the adjustable-diameter discharging device of the present invention when the adjustment port is partially opened;

[0026] Figure 6 This is a schematic diagram of the adjustable-diameter discharging device of the present invention when the adjustment port is fully closed;

[0027] Figure 7 yes Figure 5 AA section view;

[0028] Figure 8 is a schematic diagram of the high-precision storage and batching system of the present invention;

[0029] Figure 9 This is a schematic diagram of the connection structure between the bag opening station and the silo in the present invention;

[0030] Figure 10 yes Figure 9 Enlarged view of point a in the middle;

[0031] Figure 11 It is a front view of the bag clamping assembly of the present invention;

[0032] Figure 12 yes Figure 11 BB cross-sectional view;

[0033] Figure 13 It is a three-dimensional view of the splint in the present invention.

[0034] In the figure, 1. discharge port, 2. adjustment block, 201. first vertex, 202. first side, 203. second side, 3. cylindrical pin, 4. slider, 5. first slide, 6. second slide, 7. sliding track, 8. upper plate, 9. lower plate, 10. middle plate, 11. rotating motor, 12. driving gear, 13. driven gear, 14. arc groove, 15. adjustment port, 16. mixing mechanism, 17. bag opening station, 1701. bag holding plate, 1702. bag clamping assembly, 1703. barrel, 1704. bag pressing Cylinder, 18. Material silo, 19. Adjustable caliber discharging device, 20. Dust removal and return mechanism, 2001. Sealing cylinder, 2002. Dust removal box, 2003. Feed pipe, 2004. Dust removal fan, 21. Return port, 22. Ton bag, 23. Door body, 24. Plywood, 25. Bag clamping cylinder, 26. Clamping port, 27. Protective cover, 28. Swing arm, 29. Rotating axis, 30. Arc surface, 31. Clamping section, 32. Support section, 34. Left plywood, 35. Right plywood, 37. Dust removal chamber, 38. Bag clamping bottom plate. DETAILED DESCRIPTION

[0035] The following describes embodiments of the present invention in detail. Examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended only to explain the present invention and are not to be construed as limiting the present invention.

[0036] Example 1: Figure 1-Figure 7As shown, a discharging device with adjustable caliber includes a driving assembly, a batching disk with a discharge port 1, and a plurality of adjustment blocks 2 arranged in a circular array with the discharge port 1 as the center and the sides are sequentially fitted together. The driving assembly is used to drive the adjustment block 2 to move, and the batching disk is connected to the outlet of the silo 18 of the batching system.

[0037] The ingredient tray axially limits the adjustment block 2, allowing the adjustment block 2 to move within the plane defined by the ingredient tray, thereby preventing axial misalignment of the adjustment block 2. Each adjustment block 2 includes a first side surface 202 and a second side surface 203 intersecting at a first vertex 201. The first side surfaces 202 and second side surfaces 203 of two adjacent adjustment blocks 2 mate with each other. The first side surface 202 or the second side surface 203 of the adjustment block 2 and the first vertex 201 of each adjustment block 2 form an adjustment opening 15. The adjustment block 2 is approximately triangular in structure, with the first vertex 201 facing the adjustment opening 15. Assuming that the first side surface 202 and the second side surface 203 are located on the left and right sides of the adjustment block 2, respectively, the left side surface and the right side surface of the two adjacent adjustment blocks 2 mate with each other. Depending on the direction of movement of the adjustment block 2, the adjustment opening 15 can be formed by the adjustment opening 15 and the first side surface 202 of each adjustment block 2, or by the adjustment opening 15 and the second side surface 203 of each adjustment block 2.

[0038] The drive assembly is capable of driving each adjustment block 2 to move synchronously, causing the adjustment opening 15 to expand or contract. When the first vertex angles 201 of each adjustment block 2 coincide, the adjustment opening 15 closes the discharge port 1. The adjustable-diameter discharge device is positioned at the outlet of the silo 18. Its maximum outlet diameter is equal to the diameter of the discharge port 1. The adjustment opening 15 is adjustable between the diameter of the discharge port 1 and zero, thereby adjusting the discharge speed. The sides of adjacent adjustment blocks 2 fit together, allowing the adjustment opening 15 to serve as the sole discharge area, preventing leakage through the gaps between adjacent adjustment blocks 2, thereby ensuring accurate material discharge.

[0039] The prior art also has a claw-shaped mechanism that opens or closes by radial contraction, but adjacent jaws cannot fit together, that is, a closed regulating port 15 cannot be formed, and therefore cannot be used in a batching system.

[0040] To achieve mutual contact between the sides of adjacent adjustment blocks 2, each adjustment block 2 must not only undergo translational motion. Specifically, each adjustment block 2 has a rotation center, and the drive assembly is capable of driving each adjustment block 2 to rotate synchronously relative to its respective rotation center and driving each rotation center to slide along the slide track 7, thereby ensuring that the sides of adjacent adjustment blocks 2 are always in contact. The rotational motion of the adjustment block 2 can move the first vertex 201 closer to or further away from the center of the discharge port 1. The position of the first vertex 201 determines the size of the adjustment port 15, and therefore the rotational motion of the adjustment block 2 can change the diameter of the adjustment port 15. The sliding of the rotation center is intended to prevent the adjustment blocks 2 from interfering with or separating each other, ensuring that adjacent adjustment blocks 2 are always in contact.

[0041] The adjustment opening 15 can be an irregular shape, that is, each side of the adjustment opening 15 has different dimensions. In this case, the motion state of each adjustment block 2 may be different, such as the rotation angle or sliding distance of the rotation center. However, this does not allow for effective adjustment and configuration of the discharge speed. Therefore, the adjustment opening 15 is preferably a regular polygon. In this case, the motion state of each adjustment block 2 is the same, and the rotation angle of the adjustment block 2 corresponds to the sliding distance of the rotation center. That is, when the adjustment block 2 rotates a specified angle, the sliding distance of the rotation center is also uniquely determined. This ensures that adjacent adjustment blocks 2 always fit sideways and that each side of the adjustment opening 15 has equal dimensions. When the adjustment block 2 is rotated, the adjustment opening 15 can be precisely adjusted to the specified size.

[0042] The movement of the adjustment block 2 is achieved by a drive assembly, which can be a manipulator that drives each rotation center for rotational and translational motion. That is, the manipulator acts independently on each adjustment block 2. This structure is relatively complex and is prone to asynchronous movement. The present invention preferably uses the following drive assembly structure.

[0043] The rotation center is a cylindrical pin 3 located at one end of the adjusting block 2, and a slider 4 is provided at the other end of the adjusting block 2. The driving assembly includes a first chute 5 located on the ingredient disk and cooperating with the slider 4, and a second chute 6 cooperating with the cylindrical pin 3. The sliding track 7 is located in the second chute 6. At least one of the first chute 5 and the second chute 6 can rotate around the center of the discharge port 1, and there is relative rotation between the two. The contact surface between the slider 4 and the first chute 5 is a plane.

[0044] Since the first slide groove 5 and the second slide groove 6 rotate relative to each other, the adjustment block 2 in plane contact with the first slide groove 5 will be driven to rotate around the cylinder, and the cylindrical pin 3 slides along the second slide groove 6. During the relative rotation of the first slide groove 5 and the second slide groove 6, the first slide groove 5 and the second slide groove 6 preferably intersect at one point, that is, the rotation angle of the adjustment block 2 corresponds to the sliding distance of the rotation center one by one, so that the adjustment port 15 is a regular polygon structure.

[0045] The first sliding groove 5 and the second sliding groove 6 can be arc grooves 14 or linear grooves. When linear grooves are used, the sliding is smoother and no jamming occurs.

[0046] Ingredients tray:

[0047] The ingredient tray includes an upper tray 8, a lower tray 9 and an intermediate tray 10. The upper tray 8 is fixed to the lower tray 9. The first chute 5 is located on the intermediate tray 10, and the second chute 6 is located on the lower tray 9. The driving assembly includes a rotating motor 11 for driving the intermediate tray 10 to rotate. Figure 1 and Figure 7As shown, the upper disc 8, lower disc 9, and intermediate disc 10 are all circular structures. The upper disc 8 and lower disc 9 enclose a circular cavity, and the intermediate disc 10 and the adjustment block 2 are located within the cavity. The upper disc 8 and lower disc 9 limit the circumference of the intermediate disc 10, allowing the intermediate disc 10 to rotate about the center of the discharge port 1. The rotating motor 11 and the intermediate disc 10 are driven by gears. The output shaft of the rotating motor 11 is equipped with a driving gear 12, and the intermediate disc 10 is equipped with an arc-shaped driven gear 13. The side of the lower disc 9 is provided with an arc-shaped slot 14 for the driven gear 13 to reciprocate.

[0048] The first chutes 5 are preferably arranged in a circular array. When the first chutes 5 are linear chutes, the plurality of first chutes 5 form a regular polygonal structure. In this embodiment, the regulating block 2 is provided with six, and the first chutes 5 and the second chutes 6 are also provided with six corresponding ones. The six first chutes 5 form a regular hexagonal structure. The second chutes 6 form an acute angle with the first chutes 5. The distance between the second chutes 6 and the center of the discharge port 1 gradually changes along its chute trajectory, as shown in FIG. Figure 4-Figure 6 As shown, the distance between the second chute 6 and the center of the discharge port 1 gradually decreases from the outside to the inside, and the first chute 5 is perpendicular to the radial direction of the discharge port 1. Figure 4 The position shown is the maximum opening position of the regulating port 15. The cylindrical pin 3 is located at one end of the second chute 6 and is farthest from the center of the discharge port 1. When the intermediate disk 10 rotates counterclockwise, the intersection of the projections of the second chute 6 and the first chute 5 moves closer to the center of the discharge port 1, so that the cylindrical pin 3 moves toward the middle of the second chute 6, and the regulating port 15 gradually decreases until it is closed (as shown in FIG. Figure 5 and Figure 6 shown).

[0049] Example 2: Figure 8 As shown, a high-precision storage and batching system includes a bag opening mechanism, a batching mechanism and a mixing mechanism 16 connected in sequence. The bag opening mechanism opens a ton bag 22 containing different materials, and the batching mechanism quantitatively conveys different materials to the mixing mechanism 16 respectively, and the mixing mechanism 16 mixes and stirs multiple materials; the adjustable caliber discharge device 19 mentioned above is located at the outlet of the batching mechanism.

[0050] The batching system of the present invention is used to quantitatively convey different types of materials to the mixing mechanism 16 for mixing and stirring. Traditional batching systems require the use of precision conveying equipment, such as screw conveyors, to achieve quantitative material delivery, resulting in a larger overall system size, a longer batching process chain, slow material self-flow, and increased batching time. At the same time, multiple devices increase the possibility of the introduction of metal foreign matter. The present invention installs an adjustable-diameter discharge device 19 at the outlet of the batching mechanism, and uses the opening and closing of the adjustment block 2 to adjust the material drop speed, thereby greatly shortening the batching process chain, accelerating the batching speed, and reducing the overall size of the system, which is beneficial to the skid-mounted design of the system. The skid-mounted design can assemble the various mechanisms of the system in the same frame, which is convenient for overall transportation and does not require the client to assemble the various mechanisms on site, reducing the on-site assembly process.

[0051] The bag opening mechanism is composed of a plurality of bag opening stations 17 , and the batching mechanism is composed of silos 18 connected to the bag opening stations 17 in a one-to-one correspondence. The outlet of each silo 18 is connected to a discharging device 19 with an adjustable caliber. Figure 8 The figure shows a high-precision storage and batching system diagram when mixing two materials.

[0052] Example 3: Based on Example 2, Figure 8 and Figure 9 As shown, the system also includes a dust removal and return mechanism 20. A sealing cylinder 2001 is provided outside the bag pressing portion of the bag opening station 17. The inlet of the dust removal and return mechanism 20 is connected to the interior of the bag opening station 17 through the sealing cylinder 2001, and the outlet of the dust removal and return mechanism 20 is connected to the silo 18. The dust removal and return mechanism 20 returns material leaked from the connection between the bag opening mechanism and the batching mechanism to the silo 18. The dust removal and return mechanism 20 includes a dust removal box 2002 connected to the sealing cylinder 2001 via a feed pipe 2003. A dust removal fan 2004 is provided inside the dust removal box 2002. The silo 18 is provided with a return port 21 that communicates with the dust removal box 2002.

[0053] The bag opening station 17 usually includes a bag supporting plate 1701, a bag clamping assembly 1702 and a barrel 1703 arranged in sequence from top to bottom. The bag supporting plate 1701 is used to support the ton bag 22 before unpacking and during unloading, and bear most of the weight of the ton bag 22. The bag clamping assembly 1702 is used to clamp the bag mouth of the ton bag 22. The barrel 1703 is connected to a bag pressing cylinder 1704, and the bottom of the barrel 1703 is connected to the silo 18. After the ton bag 22 is unpacked, the bag mouth of the ton bag 22 is put on the top of the barrel 1703 and is pressed by the bag pressing cylinder 1704. At this time, the bag clamping assembly 1702 can be loosened to release the material. If the bag clamping assembly 1702 or the bag pressing cylinder 1704 is not tightly sealed, material leakage may occur. The sealing cylinder 2001 is connected between the outlet of the bag clamping assembly 1702 and the inlet of the bag pressing assembly, thereby forming a closed structure for the bag opening station 17. The material leaking between the sealing cylinder 2001 and the ton bag 22 is sucked into the dust removal box 2002 by the dust removal fan 2004 and reaches the return port 21 under the action of gravity and enters the silo 18. Figure 10 As shown, the sealing cylinder 2001 connects the fixed parts of the bag clamping assembly 1702 (i.e., the bag clamping bottom plate 38) and the barrel 1703, thereby connecting the fixed parts of the bag opening station 17 from top to bottom through the sealing cylinder 2001 and surrounding the ton bag 22. The ton bag 22 is unpacked and blanked in the surrounded space. The bag clamping assembly 1702, the sealing cylinder 2001, the ton bag 22 and the barrel 1703 form a dust removal chamber 37. In order to facilitate manual unpacking, the sealing cylinder 2001 is preferably provided with a door body 23 that can be opened and closed.

[0054] This embodiment can realize dust recovery, improve material utilization, and avoid material waste and pollution. The air outlet of the dust removal box 2002 is preferably equipped with a dust concentration detector. When the dust concentration exceeds a certain value, an alarm will be triggered to remind the staff to check the leakage location, thus realizing online monitoring of dust concentration and equipment fault detection.

[0055] The bag clamping assembly 1702 in this embodiment is a traditional fully closable structure, including two clamping plates 24 that can move relative to each other and a bag clamping cylinder 25 that drives the two clamping plates 24 to reciprocate.

[0056] Example 4: Since the clamping of the splints 24 will shorten the length of the ton bag 22, the tighter the splints 24 clamp, the more the ton bag 22 shrinks. For the case where the length of the ton bag 22 is limited, if the two splints 24 are completely closed, the bag opening of the ton bag 22 may not be able to contact the barrel 1703 below, resulting in bagging failure. For this reason, the difference between this example and Example 3 is that when the bag clamping assembly 1702 clamps the ton bag 22, the two splints 24 are not completely closed, but a clamping opening 26 is left.

[0057] like Figure 11 and Figure 12As shown, the bag clamping assembly 1702 is arranged in the protective cover 27, and the bag clamping assembly 1702 is installed on the bag clamping bottom plate 38 of the protective cover 27. The center of the protective cover 27 and the bag clamping bottom plate 38 are both provided with openings for the passage of the ton bag 22. The clamping opening 26 is relatively small in size, and its function is to reduce the diameter of the blanking channel of the ton bag 22 to prevent the material from falling. At the same time, the reserved clamping opening 26 can prevent the ton bag 22 from continuing to shrink. The surface of the splint 24 surrounding the clamping opening 26 can be a multi-segment plane, and the multi-segment plane refers to a multi-segment non-coplanar plane. At this time, the surface of the splint 24 surrounding the clamping opening 26 is projected as a broken line. The surface of the splint 24 surrounding the clamping opening 26 can also be an arc surface 30. At this time, the contact surface between the clamping opening 26 and the ton bag 22 does not have a sharp corner, which can avoid damage to the ton bag 22. The clamping opening 26 is preferably an elliptical structure. As shown Figure 11 As shown, the clamping opening 26 is relatively narrow and long, with a larger width in the middle and smaller widths at both ends, which can block the material while leaving more space for the ton bag 22.

[0058] Embodiment 5: In Embodiments 3 and 4, the clamping plate 24 is directly driven by the bag clamping cylinder 25. The stroke of the bag clamping cylinder 25 is long and the lateral dimension occupied is large. Therefore, this embodiment adopts the following bag clamping assembly 1702 structure:

[0059] The bag clamping assembly 1702 further includes a swing arm 28 and a bag clamping cylinder 25 which are connected in sequence with the clamping plates 24 in a one-to-one correspondence. The rotating shaft 29 of the swing arm 28 is rotatably connected to the bag clamping base plate 38. The bag clamping cylinder 25 and the clamping plates 24 are respectively connected to both sides of the swing arm 28. The clamping plates 24 are fixed to the swing arm 28. Figure 11 and Figure 12 As shown, a rotating bearing is provided on the rotating shaft 29 connecting the swing arm 28 to the bag clamping base 38 to reduce rotational friction. When the bag clamping cylinder 25 is activated, it drives the swing arm 28 to rotate about the rotating shaft 29, thereby driving the movement of the clamping plate 24. The rotating shaft 29 of the swing arm 28 is located near one end of the swing arm 28. The bag clamping cylinder 25 and the swing arm 28 are arranged at a certain angle, and do not need to be arranged in a straight line, thereby reducing the lateral size of the bag clamping assembly 1702.

[0060] Preferably, the swing arm 28 has an arc surface 30 arranged on the same side as the splint 24, and the arc surface 30 of the splint 24 protrudes from the arc surface 30 of the swing arm 28. The arc surface 30 of the swing arm 28 is set to conform to the outer shape structure of the splint 24, so that the splint 24 and the swing arm 28 have a uniform connection surface, avoiding the interference of the swing arm 28 on the clamping of the splint 24. When clamping, the arc surface 30 of the splint 24 clamps the ton bag 22.

[0061] The clamping plate 24 is fixed to the bottom or top of the swing arm 28 by bolts, as shown in FIG. Figure 11 and Figure 12As shown, the clamping plate 24 is fixed to the bottom of the swing arm 28, and the rotating shaft 29 of the swing arm 28 is mounted on the bag clamping base 38. The rotating shaft 29 of the swing arm 28 is arranged near the edge of the bag clamping base 38. The two swing arms 28 are arranged symmetrically about the central axis of the barrel 1703. In this case, the rotating shafts 29 corresponding to the two swing arms 28 are arranged diagonally. The two bag clamping cylinders 25 are also inclined with respect to the horizontal direction, thereby reducing the lateral distance.

[0062] Regarding the specific shape design of the clamping plate 24, since one end of the swing arm 28 is under force and the other end is suspended, considering the supporting force of the clamping plate 24, this embodiment makes the following improvements to the clamping plate 24: the clamping plate 24 includes a clamping section 31 and support sections 32 located at both ends of the clamping section 31, and the arc surface 30 is located on the clamping section 31. When the bag clamping assembly 1702 is in the clamping state, the support sections 32 of the two clamping plates 24 are staggered in the upper and lower positions. Figure 12 and Figure 13 As shown, the other two clamping plates 24 are respectively a left clamping plate 34 and a right clamping plate 35. The support section 32 of the left clamping plate 34 is located at the bottom. In the clamping state, the two support sections 32 of the right clamping plate 35 intersect with the two support sections 32 of the left clamping plate 34. The clamping opening 26 is surrounded by the clamping sections 31 of the left clamping plate 34 and the right clamping plate 35. The formation of the intersecting support sections 32 at both ends of the clamping plates 24 can improve the support effect and prevent the suspended end of the swing arm 28 from being pressed downward and deformed after being subjected to force. On the one hand, it will cause the shape of the clamping opening 26 to be unstable and cause material leakage, and on the other hand, it will cause the swing arm 28 to break. In a further design, when the bag clamping assembly 1702 is in the clamping state, the support section 32 of one clamping plate 24 is located between the support section 32 of the other clamping plate 24 and the swing arm 28. For example, above the suspended end support section 32 of the right clamping plate 35 is the swing arm 28 connected to the left clamping plate 34, and below it is the non-suspended end support section 32 of the left clamping plate 34.

[0063] Example 6: On the basis of the above embodiment, a distance sensor corresponding to the door body 23 is provided on the sealing cylinder 2001, and the bag pressing cylinder 1704 on the bag pressing assembly is electrically connected to the solenoid valve. When the door body 23 is closed, the door body 23 contacts the distance sensor, and the bag pressing cylinder 1704 starts. When the door body 23 is opened, the door body 23 is separated from the distance sensor, and the bag pressing cylinder 1704 stops moving.

[0064] When the bag opening station 17 is used for manual unpacking, the bag clamping assembly 1702 is configured to intercept the material above the bag clamping assembly 1702. After manual unpacking, the inner bag of the ton bag 22 is placed into the barrel 1703, and the outer bag of the ton bag 22 is put on the bag pressing assembly. After pressing, the material begins to be unloaded. When the door 23 is used for manual unpacking, the operator's hand is inserted into the passage inside the bag opening station 17. In addition, there is a risk of hand pinching during manual operation. The door 23 cooperates with the distance sensor and the solenoid valve. When the door 23 is open, the solenoid valve disconnects the circuit of the bag pressing cylinder 1704, and the telescopic rod of the bag pressing cylinder 1704 remains in its original position, ensuring the safety of manual operation.

[0065] The power-off or gas-off protection of the bag pressing cylinder 1704 can adopt the air-controlled circuit in the prior art that prevents power-off and gas-off, such as the air-controlled circuit disclosed in application number CN202120549848.5.

[0066] In the description of the present invention, it should be understood that the terms "center", "length", "thickness", "up", "down", "left", "right", "inside", "outside", "axial" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, they should not be understood as limiting the present invention.

[0067] Furthermore, the terms “first,” “second,” etc. are used for descriptive purposes only and are not to be understood as indicating or implying relative importance.

[0068] In this specification, the schematic representations of the terms do not necessarily refer to the same embodiment. Moreover, the specific features, structures, materials or characteristics described can be combined in any suitable manner in any one or more embodiments.

[0069] With the above-described preferred embodiments of the present invention as a guide, and with reference to the above description, relevant personnel are fully capable of making various changes and modifications without departing from the technical scope of this invention. The technical scope of this invention is not limited to the contents of the specification and must be determined according to the scope of the claims.

Claims

1. A high-precision storage and batching system, characterized in that: It includes a bag opening mechanism, a batching mechanism and a mixing mechanism connected in sequence. The bag opening mechanism opens the ton bag containing different materials. The batching mechanism quantitatively conveys different materials to the mixing mechanism. The mixing mechanism mixes and stirs multiple materials. An adjustable caliber discharge device is provided at the outlet of the batching mechanism. The adjustable caliber discharging device comprises: A batching tray with a discharge port; A plurality of adjustment blocks are arranged in a circular array with the discharge port as the center and the side surfaces are sequentially affixed, the ingredient disc axially limits the adjustment blocks, each adjustment block includes a first side surface and a second side surface intersecting at a first vertex angle, the first side surfaces and the second side surfaces of two adjacent adjustment blocks affixed to each other, and the first side surface or the second side surface of the adjustment block and the first vertex angle of each adjustment block enclose an adjustment port; A driving assembly capable of driving each adjusting block to move synchronously to expand or contract the adjusting opening, and when the first vertex angles of each adjusting block coincide, the adjusting opening closes the discharge port; The bag opening mechanism is composed of several bag opening stations, and the batching mechanism is a silo connected to the bag opening stations in a one-to-one correspondence. The outlet of each silo is connected to a discharging device with an adjustable caliber; The system also includes a dust removal and return mechanism. A sealing cylinder is provided outside the bag pressing portion of the bag opening station. The inlet of the dust removal and return mechanism is connected to the interior of the bag opening station through the sealing cylinder, and the outlet of the dust removal and return mechanism is connected to the silo. The dust removal and return mechanism returns the material leaked at the connection between the bag opening mechanism and the batching mechanism to the silo. The bag opening station includes a bag supporting plate, a bag clamping assembly and a bag supporting plate, a bag clamping assembly and a barrel, which are arranged in sequence from top to bottom. The barrel is connected to a bag pressing cylinder. A sealing cylinder connects the fixed part of the bag clamping assembly and the barrel. The bag clamping assembly, the sealing cylinder, the ton bag and the barrel form a dust removal chamber. The bag clamping assembly includes two clamping plates that can move relative to each other. When the bag clamping assembly clamps the ton bag, a clamping opening is left between the two clamping plates. The bag clamping assembly also includes a swing arm and a bag clamping cylinder that are connected to the clamping plates in a one-to-one correspondence. The rotating shaft of the swing arm is rotatably connected to the bag clamping bottom plate. The bag clamping cylinder and the clamping plate are respectively connected to both sides of the swing arm, and the clamping plate is fixed to the swing arm; the clamping plate includes a clamping section and supporting sections located at both ends of the clamping section. The clamping sections of the two clamps form a clamping opening, and the surface of the clamping section forming the clamping opening is an arc surface. When the bag clamping assembly is in a clamping state, the supporting sections of the two clamps are staggered up and down.

2. The high-precision storage and batching system according to claim 1, characterized in that: Each adjustment block has a rotation center, and the drive assembly can drive each adjustment block to rotate synchronously relative to its own rotation center and drive each rotation center to slide along the sliding track, so that the sides of adjacent adjustment blocks are always in contact.

3. The high-precision storage and batching system according to claim 2, characterized in that: The driving assembly is a manipulator that drives each rotation center to perform rotational motion and translational motion respectively.

4. The high-precision storage and batching system according to claim 2, characterized in that: The rotation center is a cylindrical pin located at one end of the adjusting block, and a slider is provided at the other end of the adjusting block. The driving assembly includes a first slide groove located on the ingredient disk and cooperating with the slider and a second slide groove cooperating with the cylindrical pin. The sliding track is located in the second slide groove. At least one of the first slide groove and the second slide groove can rotate around the center of the discharge port, and there is relative rotational motion between the two. The contact surface between the slider and the first slide groove is a plane.

5. The high-precision storage and batching system according to claim 4, characterized in that: The ingredient plate includes an upper plate, a lower plate and a middle plate. The upper plate is fixed to the lower plate. The first chute is located on the middle plate. The second chute is located on the lower plate. The driving assembly includes a rotating motor that drives the middle plate to rotate.

6. The high-precision storage and batching system according to claim 4, characterized in that: The first chute and the second chute are both linear chute, and a plurality of first chute forms a regular polygonal structure.

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