Die mechanism of lithium strip extruding machine

Abstract

The invention relates to the technical field of lithium strip forming, in particular to a lithium strip extruder die mechanism which comprises a base horizontally arranged on the ground, a front die holder fixedly connected to the upper portion of the head end of the base, and a rear die holder fixedly connected to the upper portion of the tail end of the base. The number of the guide shafts is four, and the head ends and the tail ends of the four guide shafts are fixedly connected between the front mold base and the rear mold base in the x-axis direction; the mold locking beam is slidably connected to the four guide shafts, the movable mold beam is slidably connected to the four guide shafts, the extrusion power assembly is fixedly connected to the rear mold base, the mold changing assembly is horizontally arranged on the ground, the traction assembly is fixedly connected into the front mold base, the hydraulic station is horizontally arranged on the ground, and the control assembly is arranged on the front mold base. Through integral cooperation of the extrusion power assembly, the die replacement assembly, the traction assembly and the like, lithium strip forming flow optimization is achieved, the die replacement is convenient, the lithium strip traction function of a machine is achieved, and the reliability is good.

Description

Technical Field

[0001] The present invention relates to the technical field of lithium strip forming, in particular to a die mechanism of a lithium strip extruder. Background Art

[0002] Lithium ribbon is a specific form of metallic lithium product. It is a strip material made by mechanically processing high-purity metallic lithium. Lithium ribbon is widely used in many fields, mainly including lithium batteries, electronic devices and energy storage. Among them, ultra-thin lithium ribbon is used as a negative electrode material to improve the energy density and endurance of the battery, and is widely used in electric vehicles and portable electronic devices.

[0003] Publication No. CN221231297U lithium ribbon calender adopts a lithium ribbon forming method of rolling metallic lithium into lithium ribbon through rollers. However, when the lithium ribbon initially bites into the rollers, the rolling force increases sharply from zero to the set value. Due to the characteristics of its own rolling mechanism, the head of the formed lithium ribbon forms a wedge-shaped thickened area (i.e., an arc-shaped head). Such a lithium ribbon head itself does not meet the specification standards; Publication No. CN106914503B is a production method for ultra-wide metallic lithium ribbon. It introduces a method of extruding lithium ribbon into lithium ribbon through a die. However, the extruded lithium ribbon also requires a traction device to pull the lithium ribbon for the next operation, such as winding. If there is no traction device, manual traction will lead to increased labor costs and traction instability. Summary of the Invention

[0004] In view of this, the object of the present invention is to provide a die mechanism for a lithium ribbon extruder to solve the above-mentioned problems.

[0005] Based on the above objectives, the present invention provides a lithium strip extruder die mechanism, comprising:

[0006] The base is horizontally arranged on the ground, the front mold base is fixedly connected to the top of the base head end, and the rear mold base is fixedly connected to the top of the base tail end;

[0007] There are four guide shafts, which are distributed in a rectangular shape, and the head and tail ends of the four guide shafts are fixedly connected between the front mold base and the rear mold base along the x-axis.

[0008] A clamping beam is slidably connected to the four guide shafts and is located between the front mold base and the rear mold base. The center of the clamping beam is detachably connected to a transfer seat.

[0009] A movable mold beam is slidably connected to the four guide shafts and is located between the front mold base and the rear mold base;

[0010] An extrusion power assembly is fixedly connected to the rear die base and is in transmission connection with the clamping beam and the movable die beam, and the movable die beam is fixedly connected to the extrusion power assembly;

[0011] A die-changing assembly is horizontally arranged on the ground, and an extrusion die is detachably connected to the die-changing assembly, and the extrusion die is communicated with the intermediate transfer seat;

[0012] a traction assembly, fixedly connected in the front die base and communicating with the extrusion die;

[0013] A hydraulic station is horizontally arranged on the ground, the hydraulic station is connected to a plurality of hydraulic pipelines, and the plurality of hydraulic pipelines are transmission-connected to the extrusion power assembly, the die-changing assembly and the feeding assembly;

[0014] The control assembly is arranged on the front die base and is electrically connected to the hydraulic station, the feeding assembly and the traction assembly.

[0015] As an optional embodiment, the extrusion power assembly includes an extrusion cylinder, the outer circular end of the extrusion cylinder is fixedly connected to the center of the rear mold base, the outer circular end of the piston rod of the extrusion cylinder is fixedly connected to the movable mold beam, the head of the piston rod of the extrusion cylinder is fixedly connected to the extrusion head, and two closed cylinders are fixedly connected to the rear mold base in a mirror-symmetrical manner in the z-axis direction relative to the axis of the extrusion cylinder, and the piston end heads of the two closed cylinders are fixedly connected to the side of the locking beam facing the movable mold beam.

[0016] As an optional implementation, the guide shaft and the closed oil cylinder are both covered with corrugated telescopic rubber sleeves.

[0017] As an optional embodiment, the mold changing assembly includes a guide bracket fixedly connected to the rear mold base, the extrusion mold is connected to the guide bracket in a sliding manner along the y-axis, and a cylinder bracket is also fixedly connected to one side of the rear mold base, and a push-pull cylinder is rotatably connected to the cylinder bracket with the z-axis as the rotation axis, and the telescopic section of the push-pull cylinder is detachably connected to the extrusion mold. The mold changing assembly also includes a mold changing frame horizontally arranged on the ground, and the top of the mold changing frame is connected to a mold setting platform for sliding up and down along the z-axis. A top extension cylinder is fixedly connected to the mold changing frame, and the telescopic end of the top extension cylinder is fixedly connected to the mold setting platform. The oil circuits of the push-pull cylinder and the top extension cylinder are connected to the oil circuit of the hydraulic station.

[0018] As an optional embodiment, an extrusion cavity is provided inside the transfer seat, a vacuum groove is provided in the extrusion cavity toward the side of the movable mold beam, a vacuum hole is provided in the vacuum groove, the vacuum hole is externally connected to a vacuum tube, the vacuum tube is externally connected to a vacuum machine, the vacuum tube is also externally connected to a vacuum gauge, the vacuum machine is electrically connected to the control assembly, a conical guide port is provided on the other side of the extrusion cavity, the conical guide port is in contact with the extrusion die, the extrusion die includes a die pad, and the die pad slides It is dynamically connected in the guide bracket, and the upper and lower ends of the mold pad are detachably connected to the upper mold and the lower mold, respectively. A strip-shaped gap is left between the upper mold and the lower mold, and the outer structures of the upper mold and the lower mold are symmetrically designed, both of which are trapezoidal. The acute angles of the upper mold and the lower mold correspond to the conical guide port, and the spacing between the oblique sides of the upper mold and the lower mold increases along the x-axis toward the traction assembly. One end of the head of the mold pad is connected to the cavity between the upper mold and the lower mold by a waist-shaped through hole, and a guide plate is fixedly connected to the waist-shaped through hole.

[0019] The transmission gear of said sliding arm is connected with a toothed connecting strip which is cooperatively connected with said toothed connecting gear. The two teeth of the sliding arm are connected in a straight line by a toothed connecting gear. The two teeth of the sliding arm are connected in a straight line by a toothed connecting gear. Two arc-shaped protrusions with different protrusion heights, and a passing area with the smallest circular diameter and no fluctuation, the end of the guide plate faces the conveying roller, and a motor bracket is fixedly connected to the outer side of one of the sliders, and a driving motor is fixedly connected to the motor bracket. The main shaft of the driving motor is connected to the transmission shaft at the upper end, and the two transmission gears on the same side are meshed with each other. The outer circle ends of the two ends of the transmission shaft at the upper end are also fixedly connected to a second one-way bearing, and each outer circle end of the second one-way bearing is fixedly connected to a rubber wheel. A linear motion bar is fixedly connected to the lower side of the top of each running frame, and the linear motion bar includes a rack meshed with the transmission gear, and a protrusion fixedly connected to the protrusion. When the rubber wheel contacts the protrusion, the transmission gear is disengaged from the rack, and when the rubber wheel leaves the protrusion, the transmission gear contacts the rack.

[0020] As an optional embodiment, the control assembly includes a suspension rod fixedly connected to the front mold base, the end of the suspension rod is fixedly connected to a control box, and a controller is provided in the control box.

[0021] Furthermore, a distance measuring bracket is fixedly connected to the top of the front mold base and the rear mold base, and a displacement sensor is provided on the distance measuring bracket. The displacement sensor is electrically connected to the controller.

[0022] As an optional embodiment, the hydraulic station includes an oil tank, a heater is provided at the bottom of the oil tank, the heater is connected to the oil circuit of the hydraulic station, the hydraulic station also includes an oil cooler, the oil cooler is connected to the oil circuit of the hydraulic station, and the hydraulic station is located outdoors.

[0023] As an optional embodiment, two linear guide rails are fixedly connected to the two ends of the bottom of the base in a mirror-image manner, and the two linear guide rails are slidably connected to the locking beam and the movable beam.

[0024] Beneficial effects of the present invention: The present invention optimizes the flow of lithium ribbon forming through the overall coordination of the extrusion power assembly, the die change assembly, the traction assembly, etc., facilitates the replacement of the die, realizes the function of the machine traction of the lithium ribbon, and has better reliability than traditional lithium ribbon machines. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] In order to more clearly illustrate the technical solutions in the present invention or the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only for the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0026] Figure 1 This is a schematic diagram of the front side of an embodiment of the present invention;

[0027] Figure 2 This is a schematic diagram of the three-dimensional structure of an embodiment of the present invention;

[0028] Figure 3 A side view schematic diagram of an embodiment of the present invention;

[0029] Figure 4 For the embodiment of the present invention Figure 3 Isometric section view at AA;

[0030] Figure 5 For the embodiment of the present invention Figure 4 Partial enlarged view of point B;

[0031] Figure 6 Schematic diagram of the three-dimensional structure of part of the embodiment of the present invention Figure 1 ;

[0032] Figure 7 Schematic diagram of the three-dimensional structure of part of the embodiment of the present invention Figure 2 ;

[0033] Figure 8 Schematic diagram of the three-dimensional structure of the traction assembly according to the embodiment of the present invention Figure 1 ;

[0034] Figure 9 Schematic diagram of the three-dimensional structure of the traction assembly according to the embodiment of the present invention Figure 2 ;

[0035] Figure 10 For the embodiment of the present invention Figure 9 A partial enlarged schematic diagram of point C in the middle;

[0036] Figure 11 The internal structure of the traction assembly of the embodiment of the present invention Figure 1 ;

[0037] Figure 12 The internal structure of the traction assembly of the embodiment of the present invention Figure 2 .

[0038] The following are marked in the figure:

[0039] 1. Base; 11. Front mold base; 12. Rear mold base; 13. Guide shaft; 14. Clamping beam; 15. Transfer seat; 16. Moving mold beam; 17. Linear guide rail; 2. Extrusion power assembly; 21. Extrusion cylinder; 22. Extrusion head; 23. Closing cylinder; 3. Mold changing assembly; 31. Extrusion mold; 32. Guide bracket; 33. Cylinder bracket; 34. Push-pull cylinder; 35. Mold changing frame; 36. Mold setting table; 361. Elevating cylinder; 37. Extrusion chamber; 371. Vacuum groove; 372. Vacuum hole; 373. Vacuum tube; 374. Vacuum gauge; 375. Conical guide port; 38. Mold pad; 381. Upper mold; 382. Lower die; 383, waist-shaped through hole; 384, guide plate; 4, traction assembly; 41, traction frame; 411, running frame; 412, guide rail; 42, slider; 43, transmission shaft; 431, transmission gear; 432, first one-way bearing; 433, second one-way bearing; 44, conveyor roller; 441, passing area; 45, motor bracket; 451, drive motor; 46, rubber wheel; 47, linear motion bar; 471, rack; 472, bump; 5, hydraulic station; 51, oil tank; 52, heater; 53, oil cooler; 6, control assembly; 61, boom; 62, control box; 63, distance measuring bracket; 64, displacement sensor. DETAILED DESCRIPTION

[0040] In order to make the objectives, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below with reference to specific embodiments.

[0041] It should be noted that, unless otherwise defined, the technical or scientific terms used in the present invention should have the usual meanings understood by people with ordinary skills in the field to which the present invention belongs. The "first", "second" and similar words used in the present invention do not indicate any order, quantity or importance, but are only used to distinguish different components. "Include" or "comprise" and similar words mean that the elements or objects appearing before the word include the elements or objects listed after the word and their equivalents, without excluding other elements or objects. "Connect" or "connected" and similar words are not limited to physical or mechanical connections, but may include electrical connections, whether direct or indirect. "Up", "down", "left", "right" and the like are only used to indicate relative positional relationships. When the absolute position of the object being described changes, the relative positional relationship may also change accordingly.

[0042] like Figures 1-12 As shown, a lithium belt machine extrusion die 31 has a mechanism, including:

[0043] The base 1 is horizontally arranged on the ground, with a front mold base 11 fixedly connected to the top of the head end of the base 1 and a rear mold base 12 fixedly connected to the top of the tail end of the base 1;

[0044] There are four guide shafts 13, which are distributed in a rectangular shape. The four guide shafts 13 are fixedly connected between the front mold base 11 and the rear mold base 12 along the x-axis at both ends.

[0045] A clamping beam 14 is slidably connected to the four guide shafts 13 and is located between the front mold base 11 and the rear mold base 12. A transfer base 15 is detachably connected to the center of the clamping beam 14.

[0046] A movable mold beam 16 is slidably connected to the four guide shafts 13 and is located between the front mold base 11 and the rear mold base 12;

[0047] The extrusion power assembly 2 is fixedly connected to the rear die base 12 and is in transmission connection with the clamping beam 14 and the movable die beam 16. The movable die beam 16 is fixedly connected to the extrusion power assembly 2.

[0048] The die-changing assembly 3 is horizontally arranged on the ground. The die-changing assembly 3 is detachably connected to an extrusion die 31, and the extrusion die 31 is in communication with the intermediate transfer seat 15;

[0049] The traction assembly 4 is fixedly connected to the front die base 11 and communicates with the extrusion die 31;

[0050] A hydraulic station 5 is horizontally arranged on the ground, wherein the hydraulic station 5 is connected to a plurality of hydraulic pipelines, and the plurality of hydraulic pipelines are transmission-connected to the extrusion power assembly 2, the die-changing assembly 3 and the feeding assembly;

[0051] The control assembly 6 is disposed on the front die base 11 and is electrically connected to the hydraulic station 5 , the feeding assembly and the traction assembly 4 .

[0052] As an optional implementation, Figure 2 As shown, the extrusion power assembly 2 includes an extrusion cylinder 21, the outer cylindrical end of the extrusion cylinder 21 is fixedly connected to the center of the rear die base 12, the outer cylindrical end of the piston rod of the extrusion cylinder 21 is fixedly connected to the movable die beam 16, and the head of the piston rod of the extrusion cylinder 21 is fixedly connected to the extrusion head 22. Two closed cylinders 23 are fixedly connected to the rear die base 12 in a mirror-symmetrical manner in the z-axis direction relative to the axis of the extrusion cylinder 21. The piston ends of the two closed cylinders 23 are fixedly connected to the side of the clamping beam 14 facing the movable die beam 16;

[0053] In this way, the movable mold beam 16 is horizontally guided by four guide shafts 13, and the outer circular end of the piston rod of the extrusion cylinder 21 is fixedly connected to the movable mold beam 16, ensuring the gravity support of the piston rod of the extrusion cylinder 21 itself, and also ensuring the coaxiality between the piston rod of the extrusion cylinder 21 and the transfer seat 15. The two closed cylinders 23 provide axial mobility of the locking beam 14x, so that when the locking beam 14 produces lithium strips, the locking beam 14 makes the transfer seat 15 close to the upper mold 381 and the lower mold 382. When cleaning the extrusion cavity 37 or replacing the mold, the two closed cylinders 23 are driven to contract to make the locking beam 14 move away from the upper mold 381 and the lower mold 382.

[0054] As an optional implementation, Figure 2 As shown, the guide shaft 13 and the closed oil cylinder 23 are both covered with a corrugated telescopic rubber sleeve;

[0055] In this way, the corrugated telescopic rubber sleeve can provide dust protection for the four guide shafts 13 and the closed oil cylinder 23 without affecting the operation of the equipment. On the other hand, when the metal lithium is loaded into the extrusion cavity 37 by lifting, if the metal lithium accidentally collides with the four guide shafts 13 and the closed oil cylinder 23, it can also reduce the damage to both.

[0056] As an optional implementation, Figure 1 、 Figure 2 、 Figure 3 and Figure 6As shown, the die-changing assembly 3 includes a guide bracket 32 ​​fixedly connected to the rear die base 12, the extrusion die 31 is slidably connected to the guide bracket 32 ​​along the y-axis, and one side of the rear die base 12 is also fixedly connected to a cylinder bracket 33, and a push-pull cylinder 34 is rotatably connected to the cylinder bracket 33 with the z-axis as the rotation axis, and the telescopic section of the push-pull cylinder 34 is detachably connected to the extrusion die 31, and the die-changing assembly 3 also includes a die-changing frame 35 horizontally arranged on the ground, and the top of the die-changing frame 35 is connected to the die-setting table 36 for sliding up and down along the z-axis, and a top extension cylinder 361 is fixedly connected to the die-changing frame 35, and the telescopic end of the top extension cylinder 361 is fixedly connected to the die-setting table 36, and the oil circuits of the push-pull cylinder 34 and the top extension cylinder 361 are connected to the oil circuit of the hydraulic station 5;

[0057] In this way, to produce lithium ribbons of different specifications, it is necessary to replace molds of different specifications. The metal mold itself is heavy, and coupled with the structural limitations of the equipment itself, the mold replacement requires the worker to be inside the equipment to replace the mold. Not only is the work efficiency low, but the work in the narrow space is dangerous and difficult to avoid in the event of an accident. Therefore, a mold changing assembly 3 is designed. The extrusion die 31 slides along the y-axis in the guide bracket 32 ​​through the extension and contraction of the push-pull cylinder 34. After adjusting the position, the extrusion die 31 can be fixed. The push-pull cylinder 34 rotatably connected to the cylinder bracket 33 can be disconnected from the extrusion die 31 after the mold change is completed, and rotated from the y-axis direction to the x-axis direction to reduce space occupancy. When changing the mold, the mold to be replaced is moved to one side by the push-pull cylinder 34 and placed on the mold setting table 36 and then moved away. The mold to be installed can also adjust the height of the mold setting table 36 from the ground by the extension and contraction of the top cylinder 361, and cooperate with the installation of the guide bracket 32 ​​and the extension and contraction of the push-pull cylinder 34 to assist the entire mold changing process.

[0058] As an optional implementation, Figure 5As shown, an extrusion chamber 37 is provided inside the transfer seat 15, and a vacuum groove 371 is provided in the extrusion chamber 37 on the side facing the movable mold beam 16, and a vacuum hole 372 is provided in the vacuum groove 371. The vacuum hole 372 is externally connected to a vacuum pipe 373, and the vacuum pipe 373 is externally connected to a vacuum machine, and the vacuum pipe 373 is also externally connected to a vacuum gauge 374, and the vacuum machine is electrically connected to the control assembly 6. A conical guide port 375 is provided on the other side of the extrusion chamber 37, and the conical guide port 375 is in contact with the extrusion die 31. The extrusion die 31 includes a die pad 38, and the die pad 38 is slidably connected to the guide port. Into the bracket 32, the upper and lower ends of the mold spacer 38 are detachably connected to the upper mold 381 and the lower mold 382, ​​respectively. A strip-shaped gap is left between the upper mold 381 and the lower mold 382, ​​and the upper mold 381 and the lower mold 382 are symmetrically designed in shape and structure, both of which are trapezoidal. The acute angles of the upper mold 381 and the lower mold 382 correspond to the conical guide port 375, and the distance between the hypotenuses of the upper mold 381 and the lower mold 382 increases along the x-axis toward the traction assembly 4. A waist-shaped through hole 383 is formed at one end of the head of the mold spacer 38 and communicates with the cavity between the upper mold 381 and the lower mold 382. A guide plate 384 is fixedly connected to the waist-shaped through hole 383.

[0059] In this way, there is a small gap between the extrusion head 22 and the extrusion chamber 37. After the metallic lithium is placed in the extrusion chamber 37, the extrusion head 22 will penetrate into the extrusion chamber 37, but will not directly submerge the vacuum groove 371. At this time, the extrusion chamber 37 begins to be vacuumed to maintain a negative pressure in the extrusion chamber 37. Subsequently, the extrusion head 22 submerges the vacuum groove 371 to extrude the metallic lithium. The design of the conical guide port 375 enables the compressed metallic lithium to flow more smoothly and stably into the gap between the upper mold 381 and the lower mold 382 to produce a lithium strip. The upper mold 381 and the lower mold 382 are both trapezoidal structures, that is, the pressure points are two sharp-angled edges, which have little contact with the metallic lithium and are not easy to adhere. The guide plate 384 enables the compressed lithium strip to maintain its direction and contact with the traction assembly 4.

[0060] As an optional implementation, Figure 1 、 Figure 8 、 Figure 9 、 Figure 10 、 Figure 11 and Figure 12As shown, the traction assembly 4 includes a traction frame 41, and two running frames 411 are fixedly connected on both sides of the traction frame 41 in a mirror-symmetrical manner. A guide rail 412 is provided in the middle of each running frame 411, and a slider 42 is slidably connected to each guide rail 412. The upper and lower ends of each slider 42 are rotatably connected to a transmission shaft 43. The diameter of the outer circle end of the middle part of the transmission shaft 43 is smaller than the diameter of the outer circle end of the two ends of the transmission shaft 43. Each of the two ends of the transmission shaft 43 is transmission-connected to a transmission gear 431. An annular protrusion extends outward on one side of the moving gear 431, and a first one-way bearing 432 is provided on the inner side of the annular protrusion extending outward from each transmission gear 431. The inner circle end of the first one-way bearing 432 is fixedly connected to the outer side of the annular protrusion extending outward from the transmission gear 431. A conveying roller 44 is sleeved on the outer circle end of each two oppositely arranged first one-way bearings 432. The inner ends of the conveying rollers 44 are fixedly connected to the outer circle ends of the corresponding one-way bearings. The radial cross-section of the conveying roller 44 has two arc-shaped protrusions with different protrusion heights. , and a passing area 441 with the smallest circular diameter and no fluctuation, the end of the guide plate 384 faces the conveying roller 44, and a motor bracket 45 is fixedly connected to the outside of one of the sliders 42, and a driving motor 451 is fixedly connected to the motor bracket 45. The main shaft of the driving motor 451 is connected to the transmission shaft 43 at the upper end, and the two transmission gears 431 on the same side are meshed with each other. The outer ends of the two ends of the transmission shaft 43 at the upper end are also fixedly connected to a second one-way bearing 433, each The outer circular end of each second one-way bearing 433 is fixedly connected to a rubber wheel 46. The lower side of the top of each running frame 411 is fixedly connected to a linear motion bar 47. The linear motion bar 47 includes a rack 471 that meshes with the transmission gear 431 and a protrusion 472 that is fixedly connected to the rack. When the rubber wheel 46 contacts the protrusion 472, the transmission gear 431 is disengaged from the rack 471. When the rubber wheel 46 leaves the protrusion 472, the transmission gear 431 is in contact with the rack 471.

[0061] In this way, when the passing areas 441 of the two conveying rollers 44 are opposite to each other, a gap for the lithium ribbon to pass through is left between the two conveying rollers 44. When the lithium ribbon is located between the conveying rollers 44, the main shaft of the driving motor 451 can be rotated forward to rotate the two mutually meshing transmission gears 431, so that the two relative arc-shaped protrusions clamp the lithium ribbon. A plurality of different arc-shaped protrusions can adapt to lithium ribbons with different gaps. During clamping, the transmission gear 431 disengages from the meshing of the rack 471, the rubber wheel 46 contacts the protrusion 472, and the limiting directions of the first one-way bearing 432 and the second one-way bearing 433 are opposite. The functions of the first one-way bearing 432 and the second one-way bearing 433 are as follows: When the conveying roller 44 is rotating and clamping, the rubber wheel 46 does not rotate but the conveying roller 44 can rotate, so that the slider 42 itself does not move. After the clamping is completed, the lithium ribbon is pulled. At this time, the main shaft of the driving motor 451 is reversed, so that the rubber wheel 46 drives the slider 42 to move. In the rear section, the transmission gear 431 drives the slider 42 to move when the rack 471 is engaged, so that the lithium ribbon is taken out when it is clamped. The clamping and moving states do not interfere with each other. After conveying the lithium ribbon, the slider 42 is moved a distance toward the extrusion chamber 37. At the same time, the conveying roller 44 will loosen the clamping of the lithium ribbon due to the rotation of a certain angle, which is convenient for further operation of the extended lithium ribbon.

[0062] As an optional implementation, Figure 1 and 2 As shown, the control assembly 6 includes a suspension rod 61 fixedly connected to the front mold base 11, and a control box 62 is fixedly connected to the end of the suspension rod 61. A controller is provided in the control box 62;

[0063] In this way, the overall control of the equipment can be achieved, for example, the pressure required for different lithium ribbon products needs to be adjusted.

[0064] Further, such as Figure 2 As shown, the top of the front mold base 11 and the rear mold base 12 are also fixedly connected to a distance measuring bracket 63, and a displacement sensor 64 is provided on the distance measuring bracket 63. The displacement sensor 64 is electrically connected to the controller;

[0065] In this way, the displacement sensor 64 is used to sense the precise extension and contraction amount of the extrusion cylinder 21 .

[0066] As an optional implementation, Figure 2 As shown, the hydraulic station 5 includes an oil tank 51, a heater 52 is provided at the bottom of the oil tank 51, and the heater 52 is connected to the oil circuit of the hydraulic station 5. The hydraulic station 5 also includes an oil cooler 53, and the oil cooler 53 is connected to the oil circuit of the hydraulic station 5. The hydraulic station 5 is located outdoors;

[0067] In this way, under normal circumstances, the viscosity of the hydraulic oil in the hydraulic station 5 is likely to be low in the high temperature in summer, and the pressure stability is reduced, while the viscosity of the hydraulic oil is likely to be high in the low temperature in winter, making the response of the entire hydraulic system slow, the fluidity worse, and the oil pump load increased.

[0068] As an optional implementation, Figure 2 As shown, two linear guide rails 17 are fixedly connected to the two ends of the bottom of the base 1 in a mirror-image manner, and the two linear guide rails 17 are slidably connected to the clamping beam 14 and the movable beam 16;

[0069] In this way, after the lithium strip is extruded, metallic lithium will remain in the extrusion head 22 due to the small gap between the extrusion head 22 and the extrusion cavity 37. The residual metallic lithium will not be evenly distributed. In order to reduce the wear between the extrusion head 22 and the extrusion cavity 37, it is necessary to ensure the accuracy of the axial movement of the movable mold beam 16 and the locking mold beam 14x.

[0070] In this embodiment, the staff places high-purity metallic lithium in a state to be processed into the extrusion cavity 37, and controls the assembly 6 to make the extrusion head 22 in the extrusion power assembly 2 extrude the metallic lithium. The metallic lithium is pressurized to flow into the conical guide port 375 and out of the strip-shaped gap between the upper mold 381 and the lower mold 382 to form a lithium strip. The extruded lithium strip passes through the guide plate 384 and reaches the front of the traction assembly 4, and is finally clamped by the traction assembly 4 and transported.

[0071] Those skilled in the art will understand that the discussion of any of the above embodiments is merely illustrative and is not intended to limit the scope of the present invention to these examples. Within the spirit and principles of the present invention, the technical features of the above embodiments or different embodiments may be combined, the steps may be implemented in any order, and many other variations exist for the various aspects of the present invention described above, which are not provided in detail for the sake of clarity. Any omissions, modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention shall be included within the scope of protection of the present invention.

Claims

1. A lithium ribbon extruder die mechanism, characterized in that: include: A base (1) is horizontally arranged on the ground, a front mold base (11) is fixedly connected above the head end of the base (1), and a rear mold base (12) is fixedly connected above the tail end of the base (1); Four guide shafts (13) are provided, and the four guide shafts (13) are distributed in a rectangular shape. The four guide shafts (13) are fixedly connected between the front mold base (11) and the rear mold base (12) along the x-axis at both ends. A clamping beam (14) is slidably connected to the four guide shafts (13) and is located between the front mold base (11) and the rear mold base (12). The center of the clamping beam (14) is detachably connected to a transfer seat (15); A movable mold beam (16) is slidably connected to the four guide shafts (13) and is located between the front mold base (11) and the rear mold base (12); An extrusion power assembly (2) is fixedly connected to the rear die base (12) and is in transmission connection with the clamping beam (14) and the movable die beam (16); the movable die beam (16) is fixedly connected to the extrusion power assembly (2); A die-changing assembly (3) is horizontally arranged on the ground. An extrusion die (31) is detachably connected to the die-changing assembly (3), and the extrusion die (31) is in communication with the intermediate transfer seat (15); A traction assembly (4) is fixedly connected in the front die base (11) and communicates with the extrusion die (31); A hydraulic station (5) is horizontally arranged on the ground, wherein the hydraulic station (5) is connected to a plurality of hydraulic pipelines, and the plurality of hydraulic pipelines are transmission-connected to the extrusion power assembly (2), the die-changing assembly (3) and the feeding assembly; The control assembly (6) is arranged on the front die base (11) and is electrically connected to the hydraulic station (5), the feeding assembly and the traction assembly (4).

2. A lithium strip extruder die mechanism according to claim 1, characterized in that: The extrusion power assembly (2) comprises an extrusion cylinder (21), the outer circular end of the extrusion cylinder (21) is fixedly connected to the center of the rear die base (12), the outer circular end of the piston rod of the extrusion cylinder (21) is fixedly connected to the movable die beam (16), the head of the piston rod of the extrusion cylinder (21) is fixedly connected to an extrusion head (22), and two closed cylinders (23) are fixedly connected to the rear die base (12) in a mirror-symmetrical manner in the z-axis direction relative to the axis of the extrusion cylinder (21), and the piston ends of the two closed cylinders (23) are fixedly connected to a side of the clamping beam (14) facing the movable die beam (16).

3. A lithium ribbon extruder die mechanism according to claim 1, characterized in that: The guide shaft (13) and the closed oil cylinder (23) are both sleeved with a corrugated telescopic rubber sleeve.

4. A lithium strip extruder die mechanism according to claim 1, characterized in that: The die-changing assembly (3) includes a guide bracket (32) fixedly connected to the rear die base (12), the extrusion die (31) is slidably connected to the guide bracket (32) along the y-axis, and a cylinder bracket (33) is fixedly connected to one side of the rear die base (12). A push-pull cylinder (34) is rotatably connected to the cylinder bracket (33) with the z-axis as the rotation axis, and the telescopic section of the push-pull cylinder (34) is detachably connected to the extrusion die (31). The die-changing assembly (3) also includes a die-changing frame (35) horizontally arranged on the ground, the top of the die-changing frame (35) is connected to the die-setting platform (36) in a sliding manner up and down along the z-axis, and a top extension cylinder (361) is fixedly connected to the die-setting platform (36), and the telescopic end of the top extension cylinder (361) is fixedly connected to the die-setting platform (36), and the oil circuits of the push-pull cylinder (34) and the top extension cylinder (361) are connected to the oil circuit of the hydraulic station (5).

5. A lithium ribbon extruder die mechanism according to claim 1, characterized in that: An extrusion chamber (37) is provided inside the transfer seat (15), a vacuum groove (371) is provided in the extrusion chamber (37) on the side facing the movable mold beam (16), a vacuum hole (372) is provided in the vacuum groove (371), the vacuum hole (372) is externally connected to a vacuum tube (373), the vacuum tube (373) is externally connected to a vacuum pump, the vacuum tube (373) is also externally connected to a vacuum gauge (374), the vacuum pump is electrically connected to the control assembly (6), a conical guide port (375) is provided on the other side of the extrusion chamber (37), the conical guide port (375) is in contact with the extrusion die (31), the extrusion die (31) includes a die pad (38), the die pad (38) is slidably connected to the guide In the bracket (32), the upper and lower ends of the mold pad (38) are detachably connected to an upper mold (381) and a lower mold (382), respectively. A strip-shaped gap is left between the upper mold (381) and the lower mold (382), and the outer structures of the upper mold (381) and the lower mold (382) are symmetrically designed and are both trapezoidal. The acute angle edges of the upper mold (381) and the lower mold (382) correspond to the conical guide port (375). The spacing between the oblique edges of the upper mold (381) and the lower mold (382) increases along the x-axis toward the traction assembly (4). A waist-shaped through hole (383) is provided at one end of the head of the mold pad (38) in communication with the cavity between the upper mold (381) and the lower mold (382), and a guide plate (384) is fixedly connected to the waist-shaped through hole (383).

6. A lithium ribbon extruder die mechanism according to claim 1, characterized in that: The traction assembly (4) includes a traction frame (41), and two running frames (411) are fixedly connected on both sides of the traction frame (41) in a mirror-symmetrical manner. A guide rail (412) is provided in the middle of each running frame (411), and a slider (42) is slidably connected to each guide rail (412). The upper and lower ends of the side of each slider (42) are rotatably connected to a transmission shaft (43), and the diameter of the outer circle end of the middle part of the transmission shaft (43) is smaller than the diameter of the outer circle end of the two ends of the transmission shaft (43). Each of the two ends of the transmission shaft (43) is transmission-connected to a transmission gear (431). A ring-shaped protrusion extends outward from one side of the moving gear (431), and a first one-way bearing (432) is provided on the inner side of the ring-shaped protrusion extending outward from each transmission gear (431). The inner circle end of the first one-way bearing (432) is fixedly connected to the outer side of the ring-shaped protrusion extending outward from the transmission gear (431). A conveying roller (44) is sleeved on the outer circle end of each two oppositely arranged first one-way bearings (432). The inner ends of the conveying rollers (44) are fixedly connected to the outer circle ends of the corresponding one-way bearings. The radial cross section of the conveying rollers (44) has two arc-shaped protrusions with different protrusion heights, and a circular diameter. The minimum and non-fluctuating passing area (441), the end of the guide plate (384) faces the conveying roller (44), a motor bracket (45) is fixedly connected to the outside of one of the sliders (42), a driving motor (451) is fixedly connected to the motor bracket (45), the main shaft of the driving motor (451) is connected to the transmission shaft (43) at the upper end, the two transmission gears (431) at the same side are meshed with each other, and the outer ends of the two ends of the transmission shaft (43) at the upper end are also fixedly connected to a second one-way bearing (433), each of the second one-way bearings The outer circular end of the bearing (433) is fixedly connected to a rubber wheel (46), and the lower side of the top of each running frame (411) is fixedly connected to a linear motion bar (47), and the linear motion bar (47) includes a rack (471) meshing with the transmission gear (431) and a protrusion (472) fixedly connected to the rack. When the rubber wheel (46) contacts the protrusion (472), the transmission gear (431) is disengaged from the rack (471), and when the rubber wheel (46) leaves the protrusion (472), the transmission gear (431) contacts the rack (471).

7. A lithium ribbon extruder die mechanism according to claim 1, characterized in that: The control assembly (6) comprises a suspension rod (61) fixedly connected to the front mold base (11), the end of the suspension rod (61) is fixedly connected to a control box (62), and a controller is arranged in the control box (62).

8. A lithium ribbon extruder die mechanism according to claim 7, characterized in that: The tops of the front mold base (11) and the rear mold base (12) are also fixedly connected with a distance measuring bracket (63), and a displacement sensor (64) is provided on the distance measuring bracket (63), and the displacement sensor (64) is electrically connected to the controller.

9. A lithium ribbon extruder die mechanism according to claim 1, characterized in that: The hydraulic station (5) comprises an oil tank (51), a heater (52) is provided at the bottom of the oil tank (51), and the heater (52) is communicated with the oil circuit of the hydraulic station (5). The hydraulic station (5) also comprises an oil cooler (53), and the oil cooler (53) is communicated with the oil circuit of the hydraulic station (5). The hydraulic station (5) is located outdoors.

10. A lithium ribbon extruder die mechanism according to claim 1, characterized in that: Two linear guide rails (17) are fixedly connected to the bottom ends of the base (1) in a mirror-image manner. The two linear guide rails (17) are slidably connected to the clamping beam (14) and the movable beam (16).

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