Double-screw feeder capable of controlling blanking

Abstract

A weighing mechanism is arranged at one end of a bottom plate, a double-screw feeding mechanism is arranged on the weighing mechanism, an inclined bottom face is arranged at the bottom of a discharging bin, a discharging port is connected with a feeding port of the double-screw feeding mechanism, and a stirring shaft is arranged on the inclined bottom face. The double-helix feeding mechanism and the stirring shaft are respectively provided with a driving mechanism, the control box is arranged at the other end of the bottom plate, and the weighing mechanism is electrically connected with the first driving mechanism, the second driving mechanism and the control box. According to the feeder, the rotating speed of the stirring blades can be controlled according to the current weight of materials in the discharging bin, so that the discharging speed is accurately controlled; anti-blocking is achieved through the arrangement of the inclined bottom face and the stirring shaft, blockage possibly caused by material accumulation in the discharging bin is avoided, and the possibility that the materials block a feeding port of the screw rod is avoided while the discharging speed is controlled through the stirring blades; and the design of the double screw rods is adopted, so that the blanking speed is greatly increased, and the blockage phenomenon caused by slow blanking of a single screw is reduced.

Description

Technical Field

[0001] The utility model belongs to the technical field of material conveying, and particularly relates to a double - screw feeder for controlling material feeding. Background Art

[0002] As the core component of a lithium - ion battery, the performance of the lithium - ion cathode material directly determines the energy density, safety and cost of the battery.

[0003] The process flow of the lithium - battery cathode material is a complex and delicate process, mainly involving multiple links such as raw material preparation, mixing, sintering, pulverizing, classification, screening and packaging. Among them, mixing is a very important link. When mixing, it is necessary to control the ratio of raw materials. However, the existing feeder cannot control the feeding amount during feeding, and large lumps are likely to appear in the material during the discharging process, which is likely to cause blockage at the feeding port. In the long run, it will damage the spiral blades and reduce the conveying efficiency of the feeder. Content of the Utility Model

[0004] The utility model provides a double - screw feeder for controlling material feeding, which can effectively solve the above problems.

[0005] The utility model is realized as follows:

[0006] A double - screw feeder for controlling material feeding includes a bottom plate, a weighing mechanism, a double - screw feeding mechanism, a feeding bin, a stirring shaft and a control box. The weighing mechanism is arranged at one end of the bottom plate, the double - screw feeding mechanism is arranged on the weighing mechanism, the bottom of the feeding bin is provided with an inclined bottom surface, and an outlet is arranged at the lower end of the inclined surface. The outlet is connected to the inlet of the double - screw feeding mechanism, and the stirring shaft is arranged on the inclined bottom surface; the double - screw feeding mechanism is provided with a first driving mechanism, the stirring shaft is provided with a second driving mechanism, the control box is arranged at the other end of the bottom plate, and the weighing mechanism, the first driving mechanism, the second driving mechanism are electrically connected to the control box.

[0007] As a further improvement, the first driving mechanism includes a gear seat, a first motor seat, a first coupling and a first servo motor. The gear seat, the first motor seat and the first servo motor are connected in sequence. A first gear set is arranged in the gear seat, and the first coupling is arranged in the first motor seat to connect the first servo motor and the first gear set.

[0008] As a further improvement, the gear seat is provided with a shaft groove, a first connection seat, a first bearing seat and a second bearing seat. The shaft groove is arranged at one end of the gear seat. A first shaft hole and a second shaft hole penetrating through the gear seat are arranged in the shaft groove. The first bearing seat and the second bearing seat are arranged at both ends of the gear seat. The first bearing seat and the second bearing seat are connected to the weighing mechanism through the first connection seat; the first gear set is provided with gears, a shaft rod and a roller. The shaft rods are respectively arranged in the first shaft hole and the second shaft hole and are connected to the first bearing seat and the second bearing seat at both ends. The gears are respectively arranged on the shaft rod and the rotating rod of the first coupling and are meshed with each other. The rollers are arranged in the first shaft hole, the second shaft hole and on the rotating rod of the first coupling.

[0009] As a further improvement, the double-screw feeding mechanism is provided with a flange plate, a second connection seat, a feed hopper, double screws, a double-screw barrel, a discharge barrel and end bearing seats. The flange plate is arranged opposite to the second bearing seat and is connected to the weighing mechanism through the second connection seat. The feed hopper is arranged between the second bearing seat and the flange plate. The discharge port of the lower material bin is connected to the feed port of the feed hopper; the double screws penetrate through the flange plate and are respectively connected to the two shaft rods. The double-screw barrel is sleeved on the double screws and is connected to the downstream side of the flange plate. The discharge barrel is vertically connected to the end of the double-screw barrel. The end bearing seats are arranged on the side surface of the discharge barrel and are connected to the double screws.

[0010] As a further improvement, connecting plates are arranged on the upper and lower side surfaces of the double-screw barrel. Both ends of the connecting plates are connected to the flange plate and the discharge barrel; an inspection cover is arranged at the upper end of the discharge barrel.

[0011] As a further improvement, the second driving mechanism is provided with a gear box, a second motor seat, a second coupling and a second servo motor. The gear box, the second motor seat and the second servo motor are connected in sequence. An installation surface is arranged at one corner of the gear box and is connected to the gear seat. A second gear set is arranged in the gear box. The second coupling is arranged in the second motor seat and is connected to the second servo motor and the second gear set.

[0012] As a further improvement, the second gear set is provided with a sector gear and a rotating shaft. Shaft seats are arranged on two opposite surfaces of the gear box parallel to the inclined bottom surface. The rotating shaft is arranged on the two shaft seats and extends into the lower material bin. The sector gears are respectively arranged on the rotating shaft and the rotating rod of the second coupling and are meshed with each other.

[0013] As a further improvement, the stirring shaft is provided with a shaft sleeve, stirring rods and stirring blades. The shaft sleeve is arranged on the rotating shaft. At least one stirring rod is provided. The stirring rod is fixedly arranged on the shaft sleeve parallel to the inclined bottom surface. The stirring blades are angled plates. The angled plates are attached to the inclined bottom surface and its side surface.

[0014] As a further improvement, the folding plate is provided with strip-shaped screw holes, and the folding plate is locked with the stirring rod by bolts.

[0015] As a further improvement, exhaust holes are provided on the upper side of the blanking bin.

[0016] The beneficial effects of the present utility model are as follows: The feeder can control the rotation speed of the stirring blades according to the weight of the material in the current blanking bin to accurately control the feeding rate; and prevent material blockage through the setting of the inclined bottom surface and the stirring shaft, avoiding the possible blockage caused by the accumulation of materials in the blanking bin. While controlling the feeding rate, the stirring blades prevent the possible blockage of the feeding port of the screw rod; the design of the double screw rod greatly speeds up the feeding rate and reduces the blockage phenomenon caused by slow single-screw feeding. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the drawings required for use in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of the present utility model and should not be regarded as limiting the scope. For those of ordinary skill in the art, other related drawings can be obtained based on these drawings without creative efforts.

[0018] Figure 1 is a schematic structural diagram provided by an embodiment of a double-screw feeder for controlling feeding of the present utility model;

[0019] Figure 2 is a partial structural diagram provided by an embodiment of a double-screw feeder for controlling feeding of the present utility model;

[0020] Figure 3 is a partial structural diagram provided by an embodiment of a double-screw feeder for controlling feeding of the present utility model;

[0021] Figure 4 is Figure 3 an enlarged structural diagram of A in

[0022] Figure 5 is a partial explosion schematic diagram provided by an embodiment of a double-screw feeder for controlling feeding of the present utility model;

[0023] Figure 6 is a partial structural diagram of the gear seat provided by an embodiment of a double-screw feeder for controlling feeding of the present utility model.

[0024] Reference Signs:

[0025] Bottom plate 1; weighing mechanism 2; double-screw feeding mechanism 3; feeding port 31; first driving mechanism 32; gear seat 321; shaft groove 3211; first connecting seat 3212; first bearing seat 3213; second bearing seat 3214; first shaft hole 3215; second shaft hole 3216; first motor seat 322; first coupling 323; first servo motor 324; first gear set 325; gear 3251; shaft rod 3252; roller 3253; flange plate 33; second connecting seat 34; feed hopper 35; double screw 36; double-screw barrel 37; connecting plate 371; discharge barrel 38; end bearing seat 39; feeding bin 4; inclined bottom surface 41; discharge port 42; exhaust hole 43; stirring shaft 5; second driving mechanism 51; gearbox 511; second motor seat 512; second coupling 513; second servo motor 514; second gear set 515; sector gear 5151; rotating shaft 5152; shaft seat 5153; shaft sleeve 52; stirring rod 53; stirring blade 54; strip-shaped screw hole 541; control box 6. Detailed implementation mode

[0026] To make the purposes, technical solutions and advantages of the embodiments of the present utility model clearer, the technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are some, but not all, of the embodiments of the present utility model. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without creative efforts belong to the scope of protection of the present utility model. Therefore, the following detailed description of the embodiments of the present utility model provided in the drawings is not intended to limit the scope of the present utility model to be protected, but merely represents the selected embodiments of the present utility model.

[0027] In the description of the present utility model, the terms "first" and "second" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly indicating the quantity of the indicated technical features. Thus, features defined with "first" and "second" may explicitly or implicitly include one or more of such features. In the description of the present utility model, "a plurality" means two or more, unless otherwise specifically defined.

[0028] In the description of the present utility model, the orientation or positional relationship indicated by the terms "upper", "middle", "side", "side surface", "upper side", "end", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the indicated device or element must have a specific orientation, be constructed and operated in a specific orientation, and thus cannot be understood as a limitation of the present utility model.

[0029] Refer to Figures 1-6As shown in the figure, a controlled blanking double-screw feeder includes a bottom plate 1, a weighing mechanism 2, a double-screw feeding mechanism 3, a blanking bin 4, a stirring shaft 5 and a control box 6. The weighing mechanism 2 is arranged at one end of the bottom plate 1. The double-screw feeding mechanism 3 is arranged on the weighing mechanism 2. The bottom of the blanking bin 4 is provided with an inclined bottom surface 41, and a discharge port 42 is provided at the lower end of the inclined surface. The discharge port 42 is connected to the feeding port 31 of the double-screw feeding mechanism 3. The stirring shaft 5 is arranged on the inclined bottom surface 41. The double-screw feeding mechanism 3 is provided with a first driving mechanism 32, the stirring shaft 5 is provided with a second driving mechanism 51, and the control box 6 is arranged at the other end of the bottom plate 1. The weighing mechanism 2, the first driving mechanism 32, the second driving mechanism 51 are electrically connected to the control box 6.

[0030] Raw materials enter the blanking bin 4 through the bin cover. The inclined bottom plate 1 provided at the bottom can effectively prevent material accumulation. The stirring shaft 5 in the hopper body further improves the flow of materials to the screw part, prevents material bridging and accumulation, and makes the feeding more accurate. By sensing the reduction of the material weight in the blanking bin 4 by the weighing mechanism 2, the feeding rate of the feeder is controlled to automatically correct the deviation of the set value, so that the continuous feeding of the double-screw feeding mechanism 3 can be evenly and accurately controlled. When blanking, it can prevent blockage and improve the blanking efficiency of the feeder. The weighing mechanism 2 adopts an existing weighing module, which can realize the weighing of the double-screw feeder, and will not be elaborated here again.

[0031] This device changes the traditional way of weighing the material after discharging, and by weighing the material in the blanking bin 4, it can better control the accuracy of the material after discharging.

[0032] Further, the first driving mechanism 32 is provided with a gear seat 321, a first motor seat 322, a first coupling 323 and a first servo motor 324. The gear seat 321, the first motor seat 322 and the first servo motor 324 are connected in sequence. The gear seat 321 is internally provided with a first gear set 325. The first coupling 323 is arranged in the first motor seat 322 to connect the first servo motor 324 and the first gear set 325.

[0033] The double-screw feeding mechanism 3 realizes linkage through the first driving mechanism 32 to control the feeding speed.

[0034] Further, the gear seat 321 is provided with a shaft groove 3211, a first connection seat 3212, a first bearing seat 3213 and a second bearing seat 3214. The shaft groove 3211 is arranged at one end of the gear seat 321. A first shaft hole 3215 and a second shaft hole 3216 penetrating the gear seat 321 are provided in the shaft groove 3211. The first bearing seat 3213 and the second bearing seat 3214 are arranged at both ends of the gear seat 321. The first bearing seat 3213 and the second bearing seat 3214 are connected to the weighing mechanism 2 through the first connection seat 3212. The first gear set 325 is provided with a gear 3251, a shaft rod 3252 and a roller 3253. The shaft rod 3252 is respectively arranged in the first shaft hole 3215 and the second shaft hole 3216 and is connected to the first bearing seat 3213 and the second bearing seat 3214 at both ends. The gears 3251 are respectively arranged on the shaft rod 3252 and the rotating rod of the first coupling 323 and are meshed with each other. The roller 3253 is arranged in the first shaft hole 3215 and the second shaft hole 3216 and on the rotating rod of the first coupling 323.

[0035] The gear seat 321 not only plays a role in power linkage between the first driving mechanism 32 and the double-screw feeding mechanism 3, but also plays a main connection and support role with the weighing mechanism 2 to ensure the stability of the whole structure. The design of the gear seat 321 ensures the stability of the operation of the gear 3251 group, thereby accurately controlling the feeding accuracy of the double-screw feeding mechanism 3.

[0036] Further, the double-screw feeding mechanism 3 is provided with a flange plate 33, a second connection seat 34, a feeding hopper 35, a double screw 36, a double-screw barrel 37, a discharging barrel 38 and an end bearing seat 39. The flange plate 33 is arranged opposite to the second bearing seat 3214 and is connected to the weighing mechanism 2 through the second connection seat 34. The feeding hopper 35 is arranged between the second bearing seat 3214 and the flange plate 33. The discharge port 42 of the lower feeding bin 4 is connected to the feed inlet 31 of the feeding hopper 35. The double screw 36 penetrates the flange plate 33 and is respectively connected to the two shaft rods 3252. The double-screw barrel 37 is sleeved on the double screw 36 and is connected to the downstream side of the flange plate 33. The discharging barrel 38 is vertically connected to the end of the double-screw barrel 37. The end bearing seat 39 is arranged on the side of the discharging barrel 38 and is connected to the double screw 36.

[0037] Since the double-screw feeding mechanism 3 needs to extend out of the whole device, the connection of the above structure can well ensure the stability of the mechanism, avoiding looseness or deformation during use and affecting the use effect and service life of the equipment.

[0038] Further, connecting plates 371 are provided on the upper and lower sides of the double-screw barrel 37. Both ends of the connecting plates 371 are connected to the flange plate 33 and the discharging barrel 38. An inspection cover is provided at the upper end of the discharging barrel 38.

[0039] The connecting plate 371 plays a role in strengthening the twin-screw barrel 37 to prevent deformation. The inspection cover is provided for convenient inspection of the discharged material and cleaning of the equipment.

[0040] Further, the second driving mechanism 51 is provided with a gearbox 511, a second motor base 512, a second coupling 513 and a second servo motor 514. The gearbox 511, the second motor base 512 and the second servo motor 514 are connected in sequence. One corner of the gearbox 511 is provided with a mounting surface connected to the gear seat 321. A second gear set 515 is provided inside the gearbox 511. The second coupling 513 is arranged inside the second motor base 512 and connected to the second servo motor 514 and the second gear set 515.

[0041] The second driving mechanism 51 needs to cooperate with the inclined setting of the inclined bottom surface 41 and ensure the stability of the installation.

[0042] Further, the second gear set 515 is provided with a sector gear 5151 and a rotating shaft 5152. Axle seats 5153 are provided on two opposite surfaces of the gearbox 511 parallel to the inclined bottom surface 41. The rotating shaft 5152 is arranged on the two axle seats 5153 and extends into the feeding bin 4. The sector gears 5151 are respectively arranged on the rotating shaft of the rotating shaft 5152 and the second coupling 513 and are meshed with each other.

[0043] The design of the second gear set 515 can ensure the stability of the rotation of the rotating shaft and meet the requirement of the inclined setting.

[0044] Further, the stirring shaft 5 is provided with a shaft sleeve 52, stirring rods 53 and stirring blades 54. The shaft sleeve 52 is arranged on the rotating shaft 5152. At least one stirring rod 53 is provided. The stirring rod 53 is fixedly arranged on the shaft sleeve 52 parallel to the inclined bottom surface 41. The stirring blade 54 is a folding plate, and the folding plate is attached to the inclined bottom surface 41 and its side surface.

[0045] The stirring blade 54 can ensure that the bottom material is quickly fed into the double-screw feeding mechanism 3 to prevent material bridging and accumulation.

[0046] Further, a strip-shaped screw hole 541 is provided on the folding plate, and the folding plate is locked to the stirring rod 53 by bolts.

[0047] The adjustable scraper-type folding plate further improves the flow of the material towards the screw part.

[0048] Further, an exhaust hole 43 is provided on the upper side surface of the feeding bin 4.

[0049] The above are only the preferred embodiments of the present utility model and are not intended to limit the present utility model. For those skilled in the art, the present utility model may have various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present utility model shall be included within the protection scope of the present utility model.

Claims

1. A control blanking double - helix feeder, characterized in that, It includes a bottom plate, a weighing mechanism, a double - helix feeding mechanism, a blanking bin, a stirring shaft and a control box. The weighing mechanism is arranged at one end of the bottom plate. The double - helix feeding mechanism is arranged on the weighing mechanism. The bottom of the blanking bin is provided with an inclined bottom surface, and an outlet is arranged at the lower end of the inclined surface. The outlet is connected to the inlet of the double - helix feeding mechanism. The stirring shaft is arranged on the inclined bottom surface. The double - helix feeding mechanism is provided with a first driving mechanism, the stirring shaft is provided with a second driving mechanism, and the control box is arranged at the other end of the bottom plate. The weighing mechanism, the first driving mechanism, the second driving mechanism are electrically connected to the control box.

2. The double spiral feeder for controlling material discharge according to claim 1, wherein, The first driving mechanism is provided with a gear seat, a first motor seat, a first coupling and a first servo motor. The gear seat, the first motor seat and the first servo motor are connected in sequence. A first gear set is arranged in the gear seat. The first coupling is arranged in the first motor seat to connect the first servo motor and the first gear set.

3. The double-helix feeder for controlling material feeding according to claim 2, wherein The gear seat is provided with a shaft groove, a first connecting seat, a first bearing seat and a second bearing seat. The shaft groove is arranged at one end of the gear seat. A first shaft hole and a second shaft hole penetrating through the gear seat are arranged in the shaft groove. The first bearing seat and the second bearing seat are arranged at both ends of the gear seat. The first bearing seat and the second bearing seat are connected to the weighing mechanism through the first connecting seat. The first gear set is provided with gears, a shaft rod and a roller. The shaft rod is respectively arranged in the first shaft hole and the second shaft hole and is connected to the first bearing seat and the second bearing seat at both ends. The gears are respectively arranged on the shaft rod and the rotating rod of the first coupling and are meshed with each other. The roller is arranged in the first shaft hole, the second shaft hole and the rotating rod of the first coupling.

4. A double-screw feeder for controlling material discharge according to claim 1, characterized in that The double - helix feeding mechanism is provided with a flange plate, a second connecting seat, a feed hopper, a double screw, a double - screw barrel, a discharge barrel and an end bearing seat. The flange plate is arranged opposite to the second bearing seat and is connected to the weighing mechanism through the second connecting seat. The feed hopper is arranged between the second bearing seat and the flange plate. The outlet of the blanking bin is connected to the inlet of the feed hopper. The double screw penetrates through the flange plate and is respectively connected to the two shaft rods. The double - screw barrel is sleeved on the double screw and is connected to the downstream side of the flange plate. The discharge barrel is vertically connected to the end of the double - screw barrel. The end bearing seat is arranged on the side of the discharge barrel and is connected to the double screw.

5. The double-helix feeder for controlling material discharge according to claim 4, characterized in that, Connecting plates are arranged on the upper and lower sides of the double - screw barrel. Both ends of the connecting plates are connected to the flange plate and the discharge barrel. An inspection cover is arranged at the upper end of the discharge barrel.

6. The dual-screw feeder for controlling material feeding according to claim 1, wherein, The second driving mechanism is provided with a gear box, a second motor seat, a second coupling and a second servo motor. The gear box, the second motor seat and the second servo motor are connected in sequence. An installation surface is arranged at one corner of the gear box and is connected to the gear seat. A second gear set is arranged in the gear box. The second coupling is arranged in the second motor seat to connect the second servo motor and the second gear set.

7. The double - helix feeder for controlling material discharge according to claim 6, wherein, The second gear set is provided with a sector gear and a rotating shaft. Shaft seats are arranged on the two opposite surfaces of the gear box parallel to the inclined bottom surface. The rotating shaft is arranged on the two shaft seats and extends into the blanking bin. The sector gears are respectively arranged on the rotating shaft and the rotating rod of the second coupling and are meshed with each other.

8. A double-helix feeder for controlling material feeding according to claim 1, characterized in that, The stirring shaft is provided with a shaft sleeve, stirring rods and stirring blades. The shaft sleeve is arranged on the rotating shaft. There is at least one stirring rod, and the stirring rod is fixedly arranged on the shaft sleeve parallel to the inclined bottom surface. The stirring blade is a folding plate, and the folding plate is attached to the inclined bottom surface and its side surface.

9. A kind of control blanking double - screw feeder according to claim 8, characterized in that, The folding plate is provided with strip-shaped screw holes, and the folding plate is locked with the stirring rod through bolts.

10. The double-helix feeder for controlling material feeding according to claim 1, wherein, The upper side surface of the blanking bin is provided with exhaust holes.

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