A lithium iron phosphate kiln external conveying production line

Abstract

The present invention discloses a lithium iron phosphate kiln external conveying production line, which relates to the field of conveying technology, including a plurality of saggers, a conveying platform, and a material unloading box, a leveling device, and a splitting device sequentially arranged along the conveying direction. The conveying platform includes a plurality of conveying rollers; the leveling device includes: a first lifting mechanism is connected with a crossbeam, a reciprocating mechanism is mounted on the top of the first lifting mechanism through a support plate, including a reciprocating assembly and four U-shaped plates, the crossbeam is located between the four U-shaped plates, and the top array of the clamping mechanism has two lifting rods, the lifting rod includes a crossbeam and vertical plates arranged at both ends thereof, the crossbeam is provided with a through groove, the crossbeam horizontally slides in the through groove, and slides up and down in the corresponding U-shaped plate, the inner wall of the vertical plate is close to the outer wall of the corresponding U-shaped plate, and the reciprocating assembly is used to make the four U-shaped plates reciprocate along the long axis direction of the crossbeam; the splitting device includes a third lifting mechanism and a splitting tool arranged at the bottom thereof. This scheme improves the degree of automation and reduces the degree of dependence on manual labor.

Description

Technical Field

[0001] The present invention relates to the field of conveying technology, and in particular to a lithium iron phosphate kiln external conveying production line. Background Art

[0002] Taking lithium iron phosphate, the positive electrode material of lithium batteries, as an example, the raw materials such as phosphorus source, iron source, lithium source, carbon source, etc. are first mixed, and then prepared through processes such as grinding, wet iron removal, spray drying, and high-temperature sintering in a kiln. Before high-temperature sintering in the kiln, it is necessary to use a conveying production line to load the materials obtained by spray drying into a sagger and transport them to the entrance of the kiln, as follows: the conveying table transports multiple saggers to the unloading box in turn, and the unloading box loads the materials obtained by spray drying into the sagger; the conveying table transports the saggers loaded with materials to the manual position in turn, and the staff shakes the sagger with one hand and operates the scraper with the other hand to flatten the material in the sagger, and then uses the horizontal and vertical staggered dividing tools to divide the material into multiple pieces to increase the heating area of ​​the material; the conveying table transports the saggers after the material is divided into blocks to the entrance of the kiln in turn. The above-mentioned conveying production line has the following problems: it relies on manual leveling of the material in the sagger and manual division of the material into multiple pieces, which is inefficient. Summary of the invention

[0003] In order to solve the deficiencies of the prior art, the present invention provides a lithium iron phosphate kiln external conveying production line to improve the degree of automation and reduce the degree of dependence on manual labor.

[0004] In order to achieve the purpose of the present invention, the following scheme is proposed:

[0005] A lithium iron phosphate kiln external conveying production line comprises a plurality of saggers, a conveying platform, and a material unloading box, a leveling device, and a cutting device which are sequentially arranged along the conveying direction.

[0006] The conveying platform includes a plurality of conveying rollers, and a kiln is provided at the conveying tail end thereof;

[0007] The leveling device includes a first lifting mechanism, a reciprocating mechanism and a clamping mechanism. The first lifting mechanism is located outside the conveying platform. The first lifting mechanism is connected with a crossbeam for adjusting the height of the crossbeam. The reciprocating mechanism is mounted on the top of the first lifting mechanism through a supporting plate, including a reciprocating assembly and four U-shaped plates. The crossbeam is located between the four U-shaped plates. There are two lifting rods in the top array of the clamping mechanism. The lifting rods include a crossbeam and vertical plates arranged at both ends thereof. The crossbeam is provided with a through groove. The crossbeam is horizontally slidably matched in the through groove and slidably matched in the corresponding U-shaped plate up and down. The inner wall of the vertical plate is in close contact with the outer wall of the corresponding U-shaped plate. The clamping mechanism is used to clamp the sagger below it. The reciprocating assembly is used to make the four U-shaped plates reciprocate along the long axis direction of the crossbeam.

[0008] The cutting device comprises a third lifting mechanism and a cutting tool arranged at the bottom thereof. The third lifting mechanism is arranged on the bracket and is used for adjusting the height of the cutting tool.

[0009] The beneficial effects of the present invention are as follows: the conveying production line can automatically convey the sagger to the unloading box, the leveling device and the cutting device in sequence, and respectively perform the tasks of unloading, material leveling and material cutting; at the leveling device, through the ingenious cooperation of the first lifting mechanism, the reciprocating mechanism and the clamping mechanism, the sagger can be clamped, the sagger can be moved up and the sagger can be reciprocated within a certain range, thereby automatically leveling the material in the sagger; at the cutting device, the material in the sagger can be automatically divided into multiple pieces. In summary, the conveying production line provided by the present invention greatly improves the degree of automation and reduces the degree of dependence on manual labor. BRIEF DESCRIPTION OF THE DRAWINGS

[0010] Figure 1 The structure diagram of the conveying production line is shown;

[0011] Figure 2 A top view of the conveying production line is shown;

[0012] Figure 3 Shows a left view of the conveying production line;

[0013] Figure 4 A front view of the leveling device is shown;

[0014] Figure 5 A structural diagram of the clamping mechanism is shown;

[0015] Figure 6 A top view of the leveling device is shown;

[0016] Figure 7 The figure shows a top view of the interior of the shell after it is cut open;

[0017] Figure 8 The figure shows the state after the clamping mechanism moves downward;

[0018] Fig. 9 A state diagram showing a clamping mechanism clamping a sagger;

[0019] Figure numerals: conveyor platform-1, conveyor roller-11, unloading box-2, leveling device-3, support plate-31, first support seat-32, second support seat-33, splitting device-4, third lifting mechanism-41, splitting tool-42, bracket-43, sagger-5, kiln-6, first lifting mechanism-7, beam-71, through groove-72, reciprocating mechanism-8, U-shaped plate-81, first motor-82, second motor-83, gear- 84, rack-85, housing-86, first guide column-861, second guide column-862, slide bar-863, regulating column-87, first groove-871, second groove-872, clamping mechanism-9, lifting rod-91, cross bar-911, vertical plate-912, cover plate-92, clamping plate-93, base plate-931, L-shaped plate-932, block-933, hinged plate-94, top plate-95, second lifting mechanism-10. DETAILED DESCRIPTION

[0020] like Figure 1 , Figure 2 As shown, this embodiment provides a lithium iron phosphate kiln external conveying production line, including a plurality of saggers 5, a conveying platform 1, and a material discharge box 2, a leveling device 3, and a cutting device 4 arranged in sequence along the conveying direction.

[0021] The conveying platform 1 includes a plurality of conveying rollers 11, through which the sagger 5 is conveyed to a specific position. Be careful not to choose a conveyor belt type. Then, a kiln 6 is arranged at the conveying tail end of the conveying platform 1 so that the sagger 5 containing the material can be directly conveyed to the entrance of the kiln 6.

[0022] like Figure 1 , Figure 4 As shown, the leveling device 3 includes a first lifting mechanism 7, a reciprocating mechanism 8 and a clamping mechanism 9. The first lifting mechanism 7 is located outside the conveying platform 1. The first lifting mechanism 7 is connected to a crossbeam 71 for adjusting the height of the crossbeam 71. The first lifting mechanism 7 can select a lifting rod driven by a cylinder or an oil cylinder. The reciprocating mechanism 8 is mounted on the top of the first lifting mechanism 7 through a support plate 31. The reciprocating mechanism 8 includes a reciprocating assembly and four U-shaped plates 81. The four U-shaped plates 81 are symmetrically distributed in pairs. The crossbeam 71 is located between the four U-shaped plates 81. Figure 5 As shown, the top array of the clamping mechanism 9 has two lifting rods 91, each lifting rod 91 includes a cross bar 911 and vertical plates 912 arranged at both ends of the cross bar 911. Figure 4 , Figure 5As shown, the crossbeam 71 is provided with a through slot 72 which runs through it in the horizontal direction, and the two cross bars 911 are both horizontally slidably fitted in the through slot 72, and the cross bars 911 are slidably fitted in the corresponding U-shaped plates 81 up and down. In order to ensure the stability of the clamping mechanism 9, the inner wall of the vertical plate 912 is tightly attached to the outer wall of the corresponding U-shaped plate 81, and the clamping mechanism 9 is used to clamp the sagger 5 thereunder. After clamping the sagger 5, the reciprocating assembly is used to make the four U-shaped plates 81 reciprocate along the long axis direction of the crossbeam 71, so as to level the material in the sagger 5.

[0023] There are many ways to implement the clamping mechanism 9. In this embodiment, not only is it necessary to clamp the sagger 5, but it is also necessary to cover the sagger 5 to prevent the powder from spreading around during the leveling process. Therefore, the clamping mechanism 9 of this embodiment is implemented in the following manner: Figure 4 , Figure 5 As shown, the clamping mechanism 9 includes a top plate 95, a cover plate 92 and two symmetrically arranged clamping plates 93, two lifting rods 91 are both arranged on the top of the top plate 95, and a second lifting mechanism 10 is arranged on the top of the top plate 95. The movable end of the second lifting mechanism 10 passes through the top plate 95 and is connected to the cover plate 92. The second lifting mechanism 10 is used to adjust the height of the cover plate 92. The second lifting mechanism 10 can use a lifting rod driven by a cylinder or an oil cylinder. The clamping plate 93 includes a base plate 931 and two L-shaped plates 932 arranged at the bottom thereof. The top of the base plate 931 is hinged to the top plate 95, and the inner wall of the base plate 931 is hinged to the top of the cover plate 92 through a hinge plate 94. The L-shaped plate 932 is located above the gap between two adjacent conveying rollers 11.

[0024] The use of the clamping mechanism 9 is: Figure 4 In this state, the conveying platform 1 conveys a sagger 5 to the bottom of the cover plate 92; first, the first lifting mechanism 7 is used to move the crossbeam 71 and the clamping mechanism 9 downward as a whole until they reach the position as shown in FIG. Figure 8 In the state shown, the cover plate 92 does not cover the sagger 5, and there is still a gap between the two; then the cover plate 92 is moved downward by the second lifting mechanism 10. Because the top plate 95 does not move, the cover plate 92 will pull the two hinged plates 94 during the downward movement, and the hinged plates 94 will then pull the clamping plates 93, causing the two clamping plates 93 to close together. Fig. 9 In this state, the cover plate 92 covers the sagger 5 , and the L-shaped plate 932 just clamps the sagger 5 .

[0025] Preferably, Fig. 9 As shown, the length and width of the cover plate 92 are respectively larger than those of the sagger 5. Under normal circumstances, the conveying platform 1 can convey the sagger 5 to a specific position. However, if a slight error occurs and the sagger 5 is not located directly under the cover plate 92, the cover plate 92 is larger than the sagger 5 and can still completely cover the sagger 5.

[0026] If the size of the cover plate 92 is consistent with the size of the sagger 5, then when the cover plate 92 covers the sagger 5, the horizontal section of the L-shaped plate 932 supports the sagger 5, and the inner wall of the L-shaped plate 932 is close to the outer wall of the sagger 5. If the size of the cover plate 92 is larger than the sagger 5, correspondingly, more space needs to be reserved for the movement range of the cover plate 92, such as Fig. 9 As shown, a block 933 is provided at the inner right angle of the L-shaped plate 932 . When the cover plate 92 covers the sagger 5 , the horizontal section of the L-shaped plate 932 holds the sagger 5 , and the block 933 is closely attached to the outer wall of the sagger 5 .

[0027] As mentioned above, the reciprocating assembly is used to make the four U-shaped plates 81 reciprocate along the long axis direction of the cross beam 71. There are many ways to implement the reciprocating assembly in the prior art. The reciprocating assembly of this embodiment is implemented as follows: Figure 4 , Figure 6 As shown, the reciprocating assembly includes a first motor 82, a shell 86 and a regulating column 87. Two first support seats 32 and two second support seats 33 are provided on the top of the support plate 31. The regulating column 87 is rotatably arranged between the two first support seats 32. The first motor 82 is used to drive the regulating column 87. A circle of first grooves 871 is provided on the outer wall of the regulating column 87. The first groove 871 is composed of two symmetrical semi-spiral grooves. Slide rods 863 are provided at both ends of the shell 86. The slide rods 863 slide through the corresponding second support seats 33. A first guide column 861 is provided on the side of the shell 86 facing the regulating column 87. The first guide column 861 is matched in the first groove 871. Four U-shaped plates 81 are arranged at the bottom of the shell 86.

[0028] The reciprocating assembly is used in the following way: Fig. 9 In this state, the cover plate 92 covers the sagger 5, and the L-shaped plate 932 just clamps the sagger 5; then the first lifting mechanism 7 is used to move the crossbeam 71, the clamping mechanism 9 and the sagger 5 upward as a whole, until the bottom surface of the L-shaped plate 932 is higher than the top surface of the conveying roller 11. Note that during the upward movement of the clamping mechanism 9, the cross bar 911 is always located in the corresponding U-shaped plate 81, and because the inner wall of the vertical plate 912 is in close contact with the outer wall of the corresponding U-shaped plate 81, the clamping mechanism 9 will not shake at will during the upward movement; after the clamping mechanism 9 is moved upward, the first motor 8 The regulating column 87 is driven. During the rotation of the regulating column 87, the first guide column 861 always moves along the first groove 871. Because the slide bar 863 is limited by the second support seat 33, the housing 86 can only move in the horizontal direction. Therefore, when the first guide column 861 moves along the first groove 871, the housing 86 and the four U-shaped plates 81 at the bottom thereof can only move back and forth in the horizontal direction. The U-shaped plates 81 play the role of reciprocating the crossbar 911, thereby making the clamping mechanism 9 and the sagger 5 move back and forth as a whole, thereby leveling the materials in the sagger 5.

[0029] Through experiments, it is found that firstly shaking the sagger 5 with a large amplitude and then shaking the sagger 5 with a small amplitude is more conducive to the leveling effect of the material. Therefore, this embodiment is further improved on the basis of the above reciprocating assembly: Figure 6 , Figure 7 As shown, both sides of the housing 86 are open, and the two sides of the housing 86 refer to the side facing the regulating column 87 and the side away from the regulating column 87. A gear 84 and two racks 85 meshing with the gears are provided in the housing 86. The two racks 85 are parallel to each other, and one side of the rack 85 meshes with the gear 84, and the other side is close to the inner wall of the housing 86. A second motor 83 is provided on the top of the housing 86. The output of the second motor 83 at the bottom passes through the housing 86 and is connected to the gear 84 for driving the gear 84. A first guide column 861 is provided on one of the gears. The outer wall of the regulating column 87 is also provided with a circle of second grooves 872, and the second grooves 872 are also composed of two symmetrical semi-spiral grooves, and the pitch of the semi-spiral groove of the first groove 871 is smaller than the pitch of the semi-spiral groove of the second groove 872. That is to say, when the first guide column 861 is matched with the first groove 871, the reciprocating amplitude of the reciprocating assembly is smaller, and when the second guide column 862 is matched with the second groove 872, the reciprocating amplitude of the reciprocating assembly is larger.

[0030] The reciprocating assembly is used in the following manner: after the clamping mechanism 9 clamps the sagger 5 and moves upward, Figure 7 Taking the state of the two racks 85 in the middle as an example, the second motor 83 is first used to drive the gear 84 to cause the first guide column 861 to disengage from the first groove 871 and make the second guide column 862 match the second groove 872; then the first motor 82 drives the regulating column 87 to make the sagger 5 reciprocate within a larger range; thereafter, the second motor 83 drives the gear 84 in the reverse direction to cause the second guide column 862 to disengage from the second groove 872 and make the first guide column 861 match the first groove 871, and the first motor 82 drives the regulating column 87 to make the sagger 5 reciprocate within a smaller range.

[0031] like Figure 1 , Figure 3 As shown, the cutting device 4 includes a third lifting mechanism 41 and a cutting tool 42. The third lifting mechanism 41 is arranged on a bracket 43. The bottom of the third lifting mechanism 41 is connected to the cutting tool 42 for adjusting the height of the cutting tool 42. The third lifting mechanism 41 can use a lifting rod driven by a pneumatic cylinder or an oil cylinder.

[0032] How to use the conveyor production line:

[0033] The conveying platform 1 conveys the plurality of saggers 5 to the unloading box 2 in sequence, and the unloading box 2 loads the spray-dried materials into the saggers 5;

[0034] The conveying platform 1 conveys the sagger 5 loaded with materials to the leveling device 3 in sequence, and uses the first lifting mechanism 7 to move the crossbeam 71 and the clamping mechanism 9 downward as a whole, and then uses the second lifting mechanism 10 to move the cover plate 92 downward until the cover plate 92 covers the sagger 5 and the L-shaped plate 932 just clamps the sagger 5; uses the first lifting mechanism 7 to move the crossbeam 71, the clamping mechanism 9 and the sagger 5 upward as a whole, and uses the reciprocating assembly to first reciprocate the sagger 5 within a larger range, and then reciprocates the sagger 5 within a smaller range, so as to level the materials in the sagger 5; uses the first lifting mechanism 7 to move the crossbeam 71, the clamping mechanism 9 and the sagger 5 downward as a whole;

[0035] After the clamping mechanism 9 releases the sagger 5, the conveying platform 1 conveys the sagger 5 after the material is leveled to the dividing device 4, and the dividing tool 42 is moved downward by the third lifting mechanism 41 to automatically divide the material in the sagger 5 into multiple pieces;

[0036] The conveying platform 1 conveys the sagger 5 after the material is divided into blocks to the entrance of the kiln 6.

[0037] The above embodiments are only used to illustrate the technical ideas and features of the present invention, and are not intended to be the only or limit the present invention. It should be understood by those skilled in the art 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 lithium iron phosphate kiln external conveying production line, characterized in that: It comprises a plurality of saggers (5), a conveying platform (1), and a material unloading box (2), a leveling device (3), and a cutting device (4) which are sequentially arranged along the conveying direction; The conveying platform (1) comprises a plurality of conveying rollers (11), and a kiln (6) is provided at the conveying tail end thereof; The leveling device (3) comprises a first lifting mechanism (7), a reciprocating mechanism (8) and a clamping mechanism (9), wherein the first lifting mechanism (7) is located outside the conveying platform (1), the first lifting mechanism (7) is connected to a crossbeam (71) for adjusting the height of the crossbeam (71), the reciprocating mechanism (8) is mounted on the top of the first lifting mechanism (7) through a support plate (31), and comprises a reciprocating assembly and four U-shaped plates (81), the crossbeam (71) is located between the four U-shaped plates (81), and the top array of the clamping mechanism (9) has two lifting assemblies. The lifting rod (91) comprises a crossbar (911) and vertical plates (912) arranged at both ends thereof, the crossbeam (71) is provided with a through groove (72), the crossbar (911) is horizontally slidably fitted in the through groove (72), and is vertically slidably fitted in the corresponding U-shaped plate (81), the inner wall of the vertical plate (912) is closely attached to the outer wall of the corresponding U-shaped plate (81), the clamping mechanism (9) is used for clamping the sagger (5) therebelow, and the reciprocating assembly is used for causing the four U-shaped plates (81) to reciprocate along the long axis direction of the crossbar (71); The cutting device (4) comprises a third lifting mechanism (41) and a cutting tool (42) arranged at the bottom thereof; the third lifting mechanism (41) is arranged on a bracket (43) and is used to adjust the height of the cutting tool (42); The leveling device (3) further comprises a second lifting mechanism (10), the clamping mechanism (9) comprises a top plate (95), a cover plate (92) and two symmetrically arranged clamping plates (93), the two lifting rods (91) are both arranged at the top of the top plate (95), the movable end of the second lifting mechanism (10) passes through the top plate (95) and is connected to the cover plate (92) for adjusting the height of the cover plate (92), the clamping plate (93) comprises a base plate (931) and a plurality of L-shaped plates (932) arranged at the bottom thereof, the top of the base plate (931) is hinged to the top plate (95), the inner wall of the base plate (931) is hinged to the top of the cover plate (92) through a hinge plate (94), the L-shaped plate (932) is located above the gap between two adjacent conveying rollers (11), and when the cover plate (92) moves down and covers the sagger (5), the L-shaped plate (932) just clamps the sagger (5).

2. The lithium iron phosphate kiln external conveying production line according to claim 1 is characterized in that: The length and width of the cover plate (92) are respectively greater than the length and width of the sagger (5).

3. The lithium iron phosphate kiln external conveying production line according to claim 1 is characterized in that: A square block (933) is provided at an inner right angle of the L-shaped plate (932). When the cover plate (92) moves downward and covers the sagger (5), the horizontal section of the L-shaped plate (932) supports the sagger (5), and the square block (933) is closely attached to the outer wall of the sagger (5).

4. The lithium iron phosphate kiln external conveying production line according to claim 1 is characterized in that: The reciprocating assembly comprises a first motor (82), a housing (86) and a regulating column (87); two first supporting seats (32) and two second supporting seats (33) are arranged on the top of the supporting plate (31); the regulating column (87) is rotatably arranged between the two first supporting seats (32); the first motor (82) is used to drive the regulating column (87); a circle of first grooves (871) are arranged on the outer wall of the regulating column (87); the first grooves (871) are composed of two symmetrical semi-spiral grooves; sliding rods (863) are arranged at both ends of the housing (86); the sliding rods (863) slide through the corresponding second supporting seats (33); a first guide column (861) is arranged on the side of the housing (86) facing the regulating column (87); the first guide column (861) is matched in the first grooves (871); and four U-shaped plates (81) are arranged at the bottom of the housing (86).

5. The lithium iron phosphate kiln external conveying production line according to claim 4 is characterized in that: Both sides of the housing (86) are open. A gear (84) and two racks (85) meshing with the gears (84) are arranged inside the housing (86). A second motor (83) is arranged on the top of the housing (86) for driving the gear (84). The two racks (85) are parallel to each other. A first guide column (861) is arranged at the end of one of the racks (85). A second guide column (862) is arranged at the end of the other rack (85). A circle of second grooves (872) is also arranged on the outer wall of the regulating column (87). The pitch of the semi-spiral groove of the first groove (871) is smaller than the pitch of the semi-spiral groove of the second groove (872). When the gear (84) rotates, the first guide column (861) is disengaged from the first groove (871) and the second guide column (862) is matched with the second groove (872).

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