Cutting mechanism and saggar cutting device

Abstract

The application belongs to the technical field of battery processing, and discloses a cutting knife mechanism and a sagger cutting device. The cutting knife mechanism comprises a cutting knife and a gap adjusting assembly. The number of the cutting knives is two, which are a first cutting knife and a second cutting knife. The first cutting knife and the second cutting knife are both arranged in a broken line shape formed by a V-shaped structure. The gap adjusting assembly can adjust the gap between the first cutting knife and the second cutting knife along the arrangement direction of the cutting blade of the cutting knife, so as to simultaneously adjust the gap size in the vertical and horizontal directions between the material blocks, and the operation mode is simple.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of battery processing, in particular to a cutting knife mechanism and a saggar cutting device. BACKGROUND

[0002] In recent years, with the rapid development of new energy and energy storage industries, lithium ion and sodium ion batteries are increasingly used. In the production of lithium ion and sodium ion batteries, the positive and negative materials need to be sintered, and the materials in the saggar need to be cut into blocks before sintering to increase the contact area between the materials and the air, so that the materials at different positions in the saggar are fully sintered. In addition, cutting the materials in the saggar facilitates the process of turning over the saggar and pouring the materials, as well as the subsequent crushing process.

[0003] In the existing cutting technology, there are mainly two kinds. The first kind is to use fixed cutting knives, such as a saggar cutting device for lithium battery positive materials (patent number: CN205415732U). The thickness of the cutting knife is fixed. If the gap between the cut materials needs to be changed (affected by the sintering process and the crushing effect of the subsequent crusher, etc.), different thickness cutting knives need to be replaced, which not only wastes time and manpower, but also has the risk of introducing metal foreign matter. The second kind is to change the grid-shaped cutting knife of the first kind to a "river-shaped" cutting knife, such as an automatic saggar cutting device for lithium battery positive material roller kiln (patent number: CN217915506U). Through three steps (step 1, after cutting, move forward and backward to realize longitudinal automatic cutting; step 2, lift the cutting knife and turn it 90°; step 3, cut the cutting knife again and move left and right to realize horizontal automatic cutting). Although the gap can be freely switched by the machine, the disadvantages are also obvious: ① multiple actions of cutting, lifting and rotating are required, which is complicated to operate; ② in actual application, for materials with good flowability, the gap between the materials cut longitudinally is destroyed during the process of cutting horizontally, as there is no support for the cutting knife in the longitudinal direction. SUMMARY

[0004] One of the purposes of the present application is to provide a cutting knife mechanism that can adjust the gap between the material blocks formed by cutting, and is simple to operate.

[0005] To achieve this purpose, the present application adopts the following technical solutions:

[0006] The cutter mechanism comprises two cutters, i.e. a first cutter and a second cutter, and a gap adjusting assembly. Each of the cutters comprises a cutter beam and 2n (n≥1) blades arranged in parallel along a first direction. The cutter beam connects the 2n blades to form a cutter module. Each blade is composed of at least one V-shaped structure. If a blade is arranged to the tth position (t≤n) in the cutter module from outside to inside, the blade is composed of t V-shaped structures connected end to end along a second direction. The second direction is perpendicular to the first direction. The cutter module is an axisymmetric figure, and the axis of symmetry comprises two axes extending along the first direction and the second direction, respectively. The gap adjusting assembly drives the first cutter and / or the second cutter to move along the first direction, so that the cutter mechanism is transformed between a first state and a second state. In the first state, the blades of the two cutters are in one-to-one correspondence and are attached to each other. In the second state, the blades of the two cutters are separated.

[0007] Preferably, the gap adjusting assembly comprises a synchronous belt, a cutter fixing block, a synchronous pulley and a first driving member. The synchronous belt connects two synchronous pulleys, one of which is connected to the first driving member. The first cutter and the second cutter are fixed on the synchronous belt by two cutter fixing blocks and move in opposite directions.

[0008] Preferably, the included angle of the V-shaped structure in the blade is α, and α>90°. The cutter module as a whole is a square.

[0009] Preferably, the included angle intersection of the blades located at the outermost side of the cutter module and the shortest perpendicular line of the side of the square are l. The required gap value between the first cutter and the second cutter is d. Then α=arctan(d / l)*2+90°.

[0010] Preferably, the blades in the same cutter are connected by two cutter beams. The cutter further comprises a U-shaped connecting beam connected to the cutter fixing block. The two cutter beams are connected to the two ends of the connecting beam, and the extension directions of the two cutter beams are consistent with the directions of the peak lines of the blades.

[0011] Another object of the present application is to provide a sagger cutting device comprising the above-mentioned cutter mechanism, a rack and a lifting mechanism. The lifting mechanism is installed on the top of the rack. The lifting mechanism comprises a second driving member and a mounting seat. The mounting seat is arranged on the output end of the second driving member. The cutter mechanism is mounted on the mounting seat. The second driving member can drive the mounting seat to lift.

[0012] As preferred, a conveying line is further included, the conveying line comprises a mounting frame, a plurality of rollers and a third driving member, the mounting frame is arranged below the lifting mechanism, the plurality of rollers are arranged on the mounting frame in a spaced manner, and at least one of the rollers is connected with the third driving member.

[0013] As preferred, a limiting mechanism is further included, the limiting mechanism comprises a first limiting component and a second limiting component, the first limiting component limits the movement of the sagger along the conveying direction of the conveying line, and the second limiting component limits the distance between the sagger and the mounting frame.

[0014] As preferred, the first limiting component comprises a fourth driving member and a limiting rod, the fourth driving member is arranged below the conveying line, the limiting rod is arranged at the output end of the fourth driving member, the fourth driving member is capable of driving the limiting rod to lift, and the limiting rod is capable of penetrating through the conveying line to limit the sagger.

[0015] As preferred, the second limiting component comprises two opposite arranged telescopic arms, the telescopic arms comprise a fifth driving member and a limiting block, the fifth driving member is arranged above the conveying line, the limiting block is connected with the output end of the fifth driving member, and the fifth driving member is capable of driving the two limiting blocks to move towards or away from each other in a direction perpendicular to the conveying direction of the conveying line.

[0016] The cutter mechanism in the present application is provided with two cutters, i.e., a first cutter and a second cutter, and according to the positional relationship between the first cutter and the second cutter, the cutter mechanism comprises two states, one of which is a first state in which the blades of the first cutter and the second cutter are one-to-one corresponding and attached, and the other of which is a second state in which the blades of the first cutter and the second cutter are separated, and since the first cutter and the second cutter are both provided in a V-shaped structure, when the gap adjusting assembly adjusts the distance between the first cutter and the second cutter along the arrangement direction of the blades constituting the cutters, that is, when the first state is converted into the second state, the gap size in the vertical and horizontal directions between the material blocks can be adjusted at the same time, and the operation mode is simple. The sagger cutting device in the present application comprises the above-mentioned cutter mechanism, a rack and a lifting mechanism, and can realize automatic cutting of the material in the sagger, and the cutting efficiency is high. BRIEF DESCRIPTION OF DRAWINGS

[0017] Figure 1 is a structural schematic diagram of the cutter mechanism in the embodiment of the present application;

[0018] Figure 2 is a three-dimensional structural schematic diagram of the first cutter and the second cutter when they are attached in the embodiment of the present application;

[0019] Figure 3 is a three-dimensional structural schematic diagram of the first cutter and the second cutter when they are separated in the embodiment of the present application;

[0020] Figure 4 is a planar schematic view of the first cutter and the second cutter separated in one embodiment of the present application;

[0021] Figure 5 is a planar schematic view of the first cutter and the second cutter separated in another embodiment of the present application;

[0022] Figure 6 is a planar schematic view of the cutter module in an embodiment of the present application;

[0023] Figure 7 is a perspective structural schematic view of the saggar cutting device in an embodiment of the present application;

[0024] Figure 8 is a front view of the saggar cutting device in an embodiment of the present application;

[0025] Figure 9 is a bottom view of the saggar cutting device in an embodiment of the present application;

[0026] Figure 10 is a side view of the saggar cutting device in an embodiment of the present application.

[0027] In the drawings:

[0028] 1, cutter; 1a, first cutter; 1b, second cutter; 11, blade; 12, cutter beam; 13, connecting beam;

[0029] 2, gap adjusting assembly; 21, synchronous pulley; 22, synchronous belt; 23, first driving member; 24, cutter fixing block

[0030] 3, lifting mechanism; 31, second driving member; 32, mounting seat;

[0031] 4, rack;

[0032] 5, conveying line; 51, roller; 52, mounting frame;

[0033] 6, limiting mechanism; 61, fourth driving member; 62, limiting rod; 63, limiting block;

[0034] 7, saggar. DETAILED DESCRIPTION

[0035] The present application will be further described below in conjunction with the drawings and embodiments. It can be understood that the specific embodiments described herein are only used to explain the present application, but not to limit the present application. In addition, it should be noted that, for the convenience of description, only the parts related to the present application are shown in the drawings, but not all the structures.

[0036] In the description of the application, unless otherwise clearly specified and limited, the terms "connected", "connected", "fixed" should be understood broadly, for example, it can be fixedly connected, or it can be detachably connected, or it can be integrated; it can be mechanically connected, or it can be electrically connected; it can be directly connected, or it can be indirectly connected through an intermediate medium; it can be the internal communication of two elements or the interaction relationship between two elements. For those skilled in the art, the specific meaning of the above terms in the application can be understood according to the specific circumstances.

[0037] In the present application, unless otherwise clearly specified and limited, "on" or "under" the first feature of the second feature can include that the first and second features are in direct contact, or that the first and second features are not in direct contact but are in contact through another feature between them. Moreover, the first feature "on", "above" and "above" the second feature includes that the first feature is directly above and obliquely above the second feature, or only indicates that the horizontal height of the first feature is higher than that of the second feature. The first feature "below", "below" and "below" the second feature includes that the first feature is directly below and obliquely below the second feature, or only indicates that the horizontal height of the first feature is less than that of the second feature.

[0038] In the description of the present embodiment, the terms "up", "down", "left", "right" and other orientation or position relationship are based on the orientation or position relationship shown in the drawings, and are only for the convenience of description and simplification of operation, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, therefore cannot be understood as a limitation on the application. In addition, the terms "first", "second" are only used to distinguish in the description, and have no special meaning.

[0039] The present application provides a cutter mechanism for cutting powdery materials in a square carrier box including but not limited to a square sagger. Figures 1-10The cutting knife mechanism includes two cutting knives 1 and a gap adjusting assembly 2. The two cutting knives 1 are respectively a first cutting knife 1a and a second cutting knife 1b. The first cutting knife 1a and the second cutting knife 1b are identical in structure and each include a cutting knife beam 12 and 2n (n≥1) blade pieces 11 arranged in parallel and at intervals in a first direction (X direction in the figure). The cutting knife beam 12 connects the 2n blade pieces 11 to form a cutting knife module. Each blade piece 11 is composed of at least one V-shaped structure. Assuming that a certain blade piece 11 is arranged to the tth position (t≤n) in the cutting knife module in the order from outside to inside, the blade piece 11 is composed of t V-shaped structures connected head to tail in a second direction (Y direction in the figure). The second direction is perpendicular to the first direction. The cutting knife module is an axisymmetric figure, and its axis of symmetry includes two axes, L1 extending in the first direction and L2 extending in the second direction.

[0040] The cutting knife mechanism can be used to cut the materials in a square material loading box. When the cutting knife mechanism cuts the materials, the first cutting knife 1a and the second cutting knife 1b are first inserted into the material loading box, and the materials in the material loading box are preliminarily cut into a plurality of material blocks. Under the action of the gap adjusting assembly 2, the gap between the first cutting knife 1a and the second cutting knife 1b changes, and then the gap between the material blocks changes. Since the first cutting knife 1a and the second cutting knife 1b are both set as a broken line shape composed of V-shaped structures, when the gap adjusting assembly 2 adjusts the distance between the first cutting knife 1a and the second cutting knife 1b in the first direction (equivalent to moving in the diagonal direction of the material blocks), the gap size in the vertical and horizontal directions between the material blocks can be adjusted at the same time, and the operation mode is simple. It can be understood that the gap size between the material blocks is determined by the stroke of the gap adjusting assembly 2 and can be freely adjusted. Of course, the maximum stroke of the gap adjusting assembly 2 depends on the distance between two adjacent blade pieces 11 in the cutting knife 1.

[0041] Reference Figure 1As shown, in order to make the first cutter 1a and the second cutter 1b synchronous movement in the opposite direction or the same direction, improve the efficiency, the gap adjusting assembly 2 includes a synchronous belt 22, a synchronous pulley 21, a cutter fixing block 24 and a first driving member 23, wherein one synchronous pulley 21 is connected with the first driving member 23 as a driving pulley, and the other synchronous pulley 21 is a driven pulley to assist the synchronous belt 22 to move, and the cutter beams 12 of the two cutters 1 are fixed on the synchronous belt 22 through two cutter fixing blocks 24 and move in opposite directions. Specifically, the first driving member 23 is selected as a stepping motor, and the stroke of the stepping motor is determined according to the required gap between the first cutter 1a and the second cutter 1b.

[0042] Referring to Figure 2 and Figure 3 As shown, in order to improve the stability of the first cutter 1a and the second cutter 1b moving in the first direction, the first cutter 1a and the second cutter 1b each include two cutter beams 12 parallel to each other, the two cutter beams 12 are connected with the cutter 1 in the first direction, and the two cutter beams 12 are connected with the cutter fixing block 24 through a U-shaped connecting beam 13. Specifically, the blade 11 is integrally bent from an ultra-thin plate (such as a steel plate), and the cutter beams 12 welded with the blade 11 are fixed at the two ends of the connecting beam 13.

[0043] In this embodiment, the included angle of the V-shaped structure in the cutter mechanism is α, when α≤90°, the size of the material blocks cut by the edges of the first cutter 1a and the second cutter 1b is different, which easily affects the consistency of the material sintering. Referring to Figure 4 As shown, taking α=90° as an example, the cutter 1 as a whole is a parallelogram, and after the cutter 1 is placed in the positive direction of the material box and divides the materials in it, the size of the material blocks cut by the two ends of the blade 11 located inside the cutter module in the cutter 1 is larger than the size of the material blocks cut by the two ends of the blade 11 located outside the cutter module.

[0044] Therefore, in order to cut as many material blocks as possible, α is set to be greater than 90°, at this time, the ends of all the blades 11 in the cutter 1 can fall on the same side of a square, that is, the cutter module as a whole is a square, and the two diagonal lines of the square extend along the first direction and the second direction respectively, so that the size of the material blocks formed by the blade 11 cooperating with the side wall of the material box is approximately consistent (except for the material blocks located at the four corners of the material box). At this time, the maximum gap allowed between the first cutter 1a and the second cutter 1b is limited by the size of α. Referring to Figure 5 As shown, assuming that the shortest vertical line length of the intersection point of the included angle of the blade 11 located at the outermost side of the cutter module and the side of the above-mentioned square is l, and the maximum gap value required between the first cutter 1a and the second cutter 1b is d, then the included angle α of the V-shaped structure is arctan(d / l)*2+90°. For example, when l=60mm and d=5mm, α=101°.

[0045] Reference Figures 6-9 As shown in the figure, the sagger cutting device in the embodiment of the application further comprises a lifting mechanism 3 for driving the cutting mechanism to lift and a rack 4 as a mounting base, the lifting mechanism 3 comprises a second driving member 31 and a mounting seat 32, wherein the second driving member 31 is arranged on the top of the rack 4, the mounting seat 32 is arranged on the output end of the second driving member 31, and the gap adjusting assembly 2 is mounted on the mounting seat 32 to drive the first cutting knife la and the second cutting knife lb to lift under the action of the second driving member 31. Specifically, the second driving member 31 can adopt a linear driving structure such as an electric cylinder or a pneumatic cylinder.

[0046] In the embodiment, the sagger cutting device further comprises a conveying line 5 for conveying the sagger 7, so as to realize automatic feeding and discharging during the cutting process of the sagger 7. Exemplarily, the conveying line 5 comprises a mounting frame 52 and a plurality of rollers 51 rotatably arranged on the mounting frame 52, the mounting frame 52 is located below the cutting knife 1, at least one roller 51 is connected with a third driving member, and the other rollers 51 are drivingly connected with the roller 51 to realize conveying of the sagger 7. Specifically, the third driving member is an electric motor.

[0047] In order to ensure that the position and direction of the sagger 7 correspond to those of the cutting knife 1, the sagger cutting device further comprises a limiting mechanism 6, which comprises a first limiting assembly and a second limiting assembly. The first limiting assembly limits the sagger 7 from continuously moving along the conveying direction of the conveying line 5 when the sagger 7 moves below the cutting knife 1, and the second limiting assembly can limit the distance between the sagger 7 and the mounting frame 52.

[0048] Exemplarily, the first limiting assembly comprises a fourth driving member 61 and a limiting rod 62, the fourth driving member 61 is arranged below the conveying line 5, the limiting rod 62 is arranged on the output end of the fourth driving member 61, and the fourth driving member 61 can drive the limiting rod 62 to lift. When the fourth driving member 61 drives the limiting rod 62 to lift, the driving rod can pass through the two rollers 51 and rise above the conveying line 5, thereby preventing the sagger from continuously moving along the conveying direction of the conveying line 5 on the conveying line 5. The fourth driving member 61 can adopt a linear driving structure such as an electric cylinder or a pneumatic cylinder. Further, in order to reduce the friction between the limiting rod 62 and the sagger, the limiting rod 62 is rotatably arranged on the output end of the fourth driving member 61.

[0049] The second limiting assembly comprises two oppositely arranged telescopic arms, each of which comprises a fifth driving member (not shown in the figure) and a limiting block 63. The fifth driving member is installed above the conveying line 5, and the limiting block 63 is connected with the output end of the fifth driving member. Under the action of the fifth driving member, the two limiting blocks 63 move towards or away from each other along a direction perpendicular to the conveying direction of the conveying line 5, so as to clamp or release the saggar 7 and limit the saggar 7 when the saggar 7 is clamped. Specifically, the fifth driving member also adopts a linear driving structure such as an electric cylinder or a pneumatic cylinder.

[0050] Obviously, the above embodiments of the present application are only examples for clearly illustrating the present application, and are not intended to limit the embodiments of the present application. For those skilled in the art, various obvious changes, re-adjustments and substitutions can be made without departing from the scope of the present application. It is unnecessary and impossible to enumerate all the embodiments. Any modification, equivalent substitution and improvement within the spirit and principle of the present application shall be included in the protection scope of the claims of the present application.

Claims

1. A cutter mechanism, characterized by The utility model relates to a cutting knife mechanism, which comprises: two cutting knives (1), i.e., a first cutting knife (1a) and a second cutting knife (1b), each of which comprises a cutting knife beam (12) and 2n (n≥1) blades (11) arranged in parallel along a first direction, the cutting knife beam (12) connecting the 2n blades (11) to form a cutting knife module, each of the blades (11) being composed of at least one V-shaped structure, and if a certain blade (11) is arranged to the tth position (t≤n) in the cutting knife module in the order from outside to inside, the blade (11) is composed of t V-shaped structures connected head to tail along a second direction, the second direction being perpendicular to the first direction, and the cutting knife module being an axisymmetric figure with two symmetry axes, i.e., one extending along the first direction and the other extending along the second direction; a gap adjusting assembly (2) for driving the first cutting knife (1a) and / or the second cutting knife (1b) to move along the first direction, so that the cutting knife mechanism is transformed between a first state and a second state, the first state referring to a state in which the blades (11) of the two cutting knives (1) are in one-to-one correspondence and fit together, and the second state referring to a state in which the blades (11) of the two cutting knives (1) are separated; the gap adjusting assembly (2) comprising a synchronous belt (22), a cutting knife fixing block (24), a synchronous pulley (21), and a first driving member (23), the synchronous belt (22) being connected to two synchronous pulleys (21), one of the synchronous pulleys (21) being connected to the first driving member (23), and the first cutting knife (1a) and the second cutting knife (1b) being fixed to the synchronous belt (22) by two cutting knife fixing blocks (24) respectively and moving in opposite directions; The included angle of the V-shaped structure in the blade (11) is , > 90°, and the cutter module as a whole is square. The intersection angle of the outermost blade (11) of the cutter module and the shortest perpendicular line of the side of the square is l, the required gap value between the first cutter (1a) and the second cutter (1b) is d, then ; the blades (11) in the same cutting knife (1) being connected by two cutting knife beams (12), and the cutting knife (1) further comprising a U-shaped connecting beam (13) connected to the cutting knife fixing block (24), and the two cutting knife beams (12) being connected to two ends of the connecting beam (13) respectively and extending along the first direction.

2. A sagger cutting device, characterized in that The utility model further comprises a rack (4) and a lifting mechanism (3), the lifting mechanism (3) being installed on the top of the rack (4), the lifting mechanism (3) comprising a second driving member (31) and a mounting seat (32), the mounting seat (32) being arranged on the output end of the second driving member (31), and the cutting knife mechanism being installed on the mounting seat (32), the second driving member (31) being capable of driving the mounting seat (32) to lift.

3. The sagger cutting device of claim 2 wherein, The utility model further comprises a conveying line (5), the conveying line (5) comprising a mounting frame (52), a plurality of rollers (51), and a third driving member, the mounting frame (52) being arranged below the lifting mechanism (3), the plurality of rollers (51) being arranged on the mounting frame (52) in a spaced manner, and at least one of the rollers (51) being connected to the third driving member.

4. The sagger cutting device of claim 3 wherein, The device further comprises a limiting mechanism (6) including a first limiting component and a second limiting component, the first limiting component limiting the movement of the saggar (7) along the conveying direction of the conveying line (5), and the second limiting component limiting the distance between the saggar (7) and the mounting frame (52).

5. The sagger cutting device of claim 4 wherein, The first limiting component includes a fourth driving member (61) arranged below the conveying line (5) and a limiting rod (62) arranged at the output end of the fourth driving member (61), the fourth driving member (61) being capable of driving the limiting rod (62) to move up and down, and the limiting rod (62) being capable of penetrating the conveying line (5) to limit the saggar (7).

6. The sagger cutting device of claim 5 wherein, The second limiting component includes two oppositely arranged telescopic arms, each of which includes a fifth driving member arranged above the conveying line (5) and a limiting block (63) connected to the output end of the fifth driving member, the fifth driving member being capable of driving the two limiting blocks (63) to move towards or away from each other along a direction perpendicular to the conveying direction of the conveying line (5).

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