Waste chalk end treatment device for teaching

Abstract

The invention belongs to the technical field of waste chalk end treatment, and particularly relates to a teaching waste chalk end treatment device which comprises a base, a mixing barrel, an integrated mixing mechanism and a thermal release type discharging mechanism, the mixing barrel is arranged on the upper wall of the base, the upper end of the mixing barrel is open, the integrated mixing mechanism is arranged on the mixing barrel, and the thermal release type discharging mechanism is arranged on the mixing barrel. The thermal release type discharging mechanism is arranged on the side wall of the mixing barrel, and the integrated uniform mixing mechanism comprises a positioning mechanism, a driving mechanism, a stirring mechanism and an expanding mechanism. According to the waste chalk end treatment device for teaching, paste formed after mixing can be extruded and formed, the residual amount of the paste in the stirring container is reduced, and therefore the treatment efficiency of the stirring container on waste chalk ends of different colors is guaranteed.

Description

TECHNICAL FIELD

[0001] The application belongs to the technical field of waste chalk head processing, and particularly relates to a waste chalk head processing device for teaching. BACKGROUND

[0002] In the teaching activities of schools, chalks are still used in large quantities. After the chalks are used up, teachers always leave a small head of the chalk, because it is difficult for the teachers to hold the small head of the chalk to write again. Usually, the small head of the chalk is thrown away, so that resources are wasted, the environment is polluted, and the short chalks need to be recycled.

[0003] The existing waste chalk head processing device has the following problems: After the waste chalk head is ground into powder by the existing waste chalk head processing device, water needs to be added to the inside of the stirring container. The paste formed by mixing the chalk powder and the water is likely to be attached to the surface of the stirring blade and the stirring container. If the paste is not completely removed, residues are likely to be left. When different colors of waste chalks are processed, color mixing is likely to occur, so that the recycling efficiency of the waste chalk head is reduced. Therefore, the existing waste chalk head processing device cannot meet the use requirements. SUMMARY

[0004] In view of the above problems, the present application provides a waste chalk head processing device for teaching, which can extrude the paste formed after mixing to reduce the residue of the paste in the stirring container, so as to ensure the processing efficiency of the stirring container for different colors of waste chalk heads.

[0005] The technical scheme adopted by the present application is as follows: the waste chalk head processing device for teaching provided by the present application comprises a base, a mixing cylinder, an integrated mixing and uniforming mechanism and a hot separation and out-of-mold mechanism. The mixing cylinder is arranged on the upper wall of the base and is provided with an open upper end. The integrated mixing and uniforming mechanism is arranged on the mixing cylinder. The hot separation and out-of-mold mechanism is arranged on the side wall of the mixing cylinder. The integrated mixing and uniforming mechanism comprises a positioning mechanism, a driving mechanism, a stirring mechanism and an expansion mechanism. The positioning mechanism is arranged on the upper wall of the mixing cylinder. The driving mechanism is arranged on the bottom wall of the positioning mechanism. The stirring mechanism is arranged at the end of the driving mechanism away from the positioning mechanism. The expansion mechanism is arranged on the stirring mechanism. The hot separation and out-of-mold mechanism comprises a heating mechanism and a separation mechanism. The heating mechanism is arranged on the side wall of the mixing cylinder. The separation mechanism is arranged on the stirring mechanism.

[0006] As a further preferred embodiment of the present invention, the positioning mechanism includes a positioning frame, a threaded hole, a positioning bolt, a connecting rod and an anti-overflow plate, the positioning frame is arranged on the upper wall of the mixing cylinder, multiple groups of the threaded holes are arranged on the upper wall of the mixing cylinder, the positioning bolt is passed through one end of the positioning frame close to the threaded hole, the end of the positioning bolt away from the positioning frame is arranged inside the threaded hole, the positioning bolt is threadedly connected to the threaded hole, multiple groups of connecting rods are arranged on the bottom wall of the positioning frame, and the anti-overflow plate is arranged on the side of the connecting rod away from the positioning frame; the driving mechanism includes a motor box, a driving motor, a motor shaft, a clamping block, a clamping slot and a rotating block, the motor box is arranged on the bottom wall of the positioning frame, the driving motor is arranged inside the motor box, the motor shaft passes through the motor box and is arranged at the power end of the driving motor, and the clamping block is arranged at the motor shaft away from the driving motor On one side, the rotating block is rotatably arranged on the bottom wall of the mixing barrel, the slot is arranged on the upper wall of the rotating block, the slot is open at the upper end, and the block is engaged inside the slot; the stirring mechanism includes a stirring plate and a copper barrel, and multiple groups of stirring plates are arranged at the end of the motor shaft away from the driving motor, the copper barrel is arranged on the bottom wall of the mixing barrel, the copper barrel is open at the upper end, and the stirring plate is located inside the copper barrel; the expansion mechanism includes an expansion spring, an extrusion plate, a retraction electromagnet and an extrusion magnet, the extrusion plate is slidably arranged on the end of the stirring plate away from the motor shaft, the extension spring is arranged between the inside of the extrusion plate and the side wall of the stirring plate, the retraction electromagnet is arranged on the side of the stirring plate away from the motor shaft, the extrusion magnet is arranged on the side of the extrusion plate close to the retraction electromagnet, and the retraction electromagnet and the extrusion magnet are arranged opposite to each other.

[0007] During use, the operator puts the ground chalk powder into the copper cylinder and adds water to the copper cylinder. The chalk powder and water are mixed. The driving motor drives the stirring plate to rotate through the motor shaft. The stirring plate stirs the powder and water inside the copper cylinder. After the powder is mixed into a paste, the operator rotates the positioning bolt, and the positioning bolt is unscrewed from the threaded hole. The operator picks up the positioning frame, and the positioning frame takes the stirring plate out of the copper cylinder through the motor box.

[0008] Preferably, the heating mechanism includes thermoelectric cooling sheets, fixed blocks and annular copper rods, the thermoelectric cooling sheets are symmetrically arranged on the side walls at both ends of the mixing barrel in a group of two, the thermoelectric cooling sheets are arranged through the inner wall of the mixing barrel, the heating end of the thermoelectric cooling sheet is arranged inside the mixing barrel, multiple groups of fixed blocks are arranged on the inner wall of the mixing barrel, and the annular copper rod is arranged through the end of the fixed block away from the inner wall of the mixing barrel; the separation mechanism includes a separation sleeve, a round cone, a piercing spring, a piercing electromagnet and a piercing magnet, multiple groups of separation sleeves are arranged on the side wall of the motor shaft, the round cone is slidably arranged inside the separation sleeve, the piercing spring is arranged between the round cone and the inner wall of the separation sleeve, the piercing electromagnet is arranged on the inner wall of the separation sleeve away from the round cone, the piercing magnet is arranged at the end of the round cone close to the piercing electromagnet, and the piercing electromagnet and the piercing magnet are arranged relatively to each other.

[0009] In use, the distance-reducing electromagnet is powered to generate magnetism, the distance-reducing electromagnet is fixed to the side wall of the stirring plate and is arranged with the extrusion magnet in different poles, the distance-reducing electromagnet is attracted to the extrusion magnet by magnetic force, the extrusion magnet is driven to deform by the expansion spring, the extrusion plate is driven to move close to the inner wall of the copper cylinder, the distance between the extrusion plate and the inner wall of the copper cylinder is shortened, the distance between the extrusion plate and the inner wall of the copper cylinder is maintained, the paste in the copper cylinder is centrifuged as the stirring plate is rotated by the motor shaft, the paste in the copper cylinder is extruded and adhered to the inner wall thereof as the extrusion plate is rotated at a reduced distance, the motor is stopped to drive the motor shaft to rotate, the thermoelectric refrigeration piece heats the inside of the mixing cylinder through the heating end, the temperature of the mixing cylinder is increased to heat the annular copper rod, the annular copper rod is arranged outside the copper cylinder, the annular copper rod heats the copper cylinder, and the copper cylinder solidifies the paste adhered to the inner wall thereof.

[0010] Specifically, the upper wall of the base is provided with a controller.

[0011] The controller is electrically connected with the driving motor, the distance-reducing electromagnet, the thermoelectric refrigeration piece and the stirring electromagnet respectively.

[0012] The thermoelectric refrigeration piece is of model SP4040079L1-LT.

[0013] The above structure has the following beneficial effects: Compared with the prior art, the centrifugal extrusion structure and the solidification heating structure are combined, the integrated mixing mechanism and the hot and loose discharging mechanism are arranged, and the paste after mixing is extruded into an integrated form through the cooperation of the positioning mechanism, the driving mechanism, the stirring mechanism, the expansion mechanism, the heating mechanism and the separation mechanism. On the one hand, the paste residue in the copper cylinder is reduced, and on the other hand, the mixed paste is convenient to take out. The paste in the copper cylinder is centrifuged, the paste in the copper cylinder is extruded and adhered to the inner wall thereof as the extrusion plate is rotated at a reduced distance, the annular copper rod heats the copper cylinder, and the copper cylinder solidifies the paste adhered to the inner wall thereof. BRIEF DESCRIPTION OF DRAWINGS

[0014] Figure 1 It is a whole structure schematic view of the present application; Figure 2 It is a structure schematic view of the mixing cylinder of the present application; Figure 3 It is a combination structure schematic view of the driving mechanism and the expansion mechanism of the present application; Figure 4 It is a structure schematic view of the extrusion plate of the present application; Figure 5 It is a combination structure schematic view of the copper cylinder and the positioning mechanism of the present application; Figure 6 It is a front view of the present application; Figure 7 is a side view of the present scheme; Figure 8 is a top view of the present scheme; Figure 9 is an A-A sectional view of Figure 6 ; Figure 10 is an I part enlarged structural view of Figure 9 ; Figure 11 is a II part enlarged structural view of Figure 9 .

[0015] Wherein, 1, base, 2, mixing cylinder, 3, integrated mixing mechanism, 4, positioning mechanism, 5, positioning frame, 6, threaded hole, 7, positioning bolt, 8, connecting rod, 9, anti-overflow plate, 10, driving mechanism, 11, motor box, 12, driving motor, 13, motor shaft, 14, stirring mechanism, 15, stirring plate, 16, copper cylinder, 17, expansion mechanism, 18, expansion spring, 19, extrusion plate, 20, distance-reducing electromagnet, 21, extrusion magnet, 22, hot separation discharging mechanism, 23, heating mechanism, 24, thermoelectric refrigeration sheet, 25, fixed block, 26, annular copper rod, 27, separation mechanism, 28, separation sleeve, 29, round head cone, 30, piercing spring, 31, piercing electromagnet, 32, piercing magnet, 33, controller, 34, clamping block, 35, clamping groove, 36, rotating block.

[0016] The accompanying drawings are used to provide further understanding of the present scheme, and constitute a part of the specification, and are used to explain the present scheme together with embodiments of the present scheme, and do not constitute a limitation on the present scheme. DETAILED DESCRIPTION

[0017] The technical scheme in the embodiments of the present scheme will be described clearly and completely in the embodiments of the present scheme in combination with the drawings, obviously, the described embodiments are only a part of the embodiments of the present scheme, not all the embodiments; based on the embodiments in the present scheme, all other embodiments obtained by those skilled in the art without creative labor are within the scope of protection of the present scheme.

[0018] In the description of the present scheme, it is understood that the terms “upper”, “lower”, “front”, “rear”, “left”, “right”, “top”, “bottom”, “inner”, “outer” and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present scheme and simplifying the description, and do not indicate or imply that the indicated device or element must have a particular orientation, be constructed and operated in a particular orientation, therefore, it cannot be understood as a limitation on the present scheme.

[0019] As Figures 1-11As shown, the technical scheme adopted by the present scheme is as follows: the present scheme provides a teaching waste chalk head processing device, which comprises a base 1, a mixing cylinder 2, an integrated mixing mechanism 3 and a hot separation type discharging mechanism 22, the mixing cylinder 2 is arranged on the upper wall of the base 1 and is provided with an upper opening, the integrated mixing mechanism 3 is arranged on the mixing cylinder 2, and the hot separation type discharging mechanism 22 is arranged on the side wall of the mixing cylinder 2, the integrated mixing mechanism 3 comprises a positioning mechanism 4, a driving mechanism 10, a stirring mechanism 14 and an expansion mechanism 17, the positioning mechanism 4 is arranged on the upper wall of the mixing cylinder 2, the driving mechanism 10 is arranged on the bottom wall of the positioning mechanism 4, the stirring mechanism 14 is arranged on the end of the driving mechanism 10 away from the positioning mechanism 4, and the expansion mechanism 17 is arranged on the stirring mechanism 14, the hot separation type discharging mechanism 22 comprises a heating mechanism 23 and a separation mechanism 27, the heating mechanism 23 is arranged on the side wall of the mixing cylinder 2, and the separation mechanism 27 is arranged on the stirring mechanism 14.

[0020] The positioning mechanism 4 comprises a positioning frame 5, a threaded hole 6, a positioning bolt 7, a connecting rod 8 and an anti-overflow plate 9, the positioning frame 5 is arranged on the upper wall of the mixing cylinder 2, a plurality of groups of the threaded holes 6 are arranged on the upper wall of the mixing cylinder 2, the positioning bolt 7 is arranged through one end of the positioning frame 5 close to the threaded hole 6, one end of the positioning bolt 7 away from the positioning frame 5 is arranged in the threaded hole 6, the positioning bolt 7 is threadedly connected with the threaded hole 6, a plurality of groups of the connecting rods 8 are arranged on the bottom wall of the positioning frame 5, and the anti-overflow plate 9 is arranged on the side of the connecting rod 8 away from the positioning frame 5; the driving mechanism 10 comprises a motor box 11, a driving motor 12, a motor shaft 13, a clamping block 34, a clamping groove 35 and a rotating block 36, the motor box 11 is arranged on the bottom wall of the positioning frame 5, the driving motor 12 is arranged in the motor box 11, the motor shaft 13 is arranged through the motor box 11 and is arranged on the power end of the driving motor 12, the clamping block 34 is arranged on the side of the motor shaft 13 away from the driving motor 12, the rotating block 36 is rotatably arranged on the bottom wall of the mixing cylinder 2, the clamping groove 35 is arranged on the upper wall of the rotating block 36 and is provided with an upper opening, and the clamping block 34 is clamped in the clamping groove 35; the stirring mechanism 14 comprises a stirring plate 15 and a copper cylinder 16, a plurality of groups of the stirring plates 15 are arranged on the end of the motor shaft 13 away from the driving motor 12, the copper cylinder 16 is arranged on the bottom wall of the mixing cylinder 2 and is provided with an upper opening, and the stirring plate 15 is located in the copper cylinder 16; the expansion mechanism 17 comprises an expansion spring 18, a pressing plate 19, a distance-reducing electromagnet 20 and a pressing magnet 21, the pressing plate 19 is slidably arranged on the end of the stirring plate 15 away from the motor shaft 13, the expansion spring 18 is arranged between the stirring plate 15 and the side wall of the pressing plate 19, the distance-reducing electromagnet 20 is arranged on the side of the stirring plate 15 away from the motor shaft 13, the pressing magnet 21 is arranged on the side of the pressing plate 19 close to the distance-reducing electromagnet 20, and the distance-reducing electromagnet 20 and the pressing magnet 21 are oppositely arranged.

[0021] The heating mechanism 23 comprises thermoelectric refrigeration pieces 24, fixing blocks 25 and annular copper rods 26, the thermoelectric refrigeration pieces 24 are symmetrically arranged in groups of two at both ends of the lateral wall of the mixing cylinder 2, the thermoelectric refrigeration pieces 24 are arranged through the inner wall of the mixing cylinder 2, the heating end of the thermoelectric refrigeration piece 24 is arranged in the interior of the mixing cylinder 2, a plurality of fixing blocks 25 are arranged on the inner wall of the mixing cylinder 2, and the annular copper rod 26 is arranged through one end of the fixing block 25 away from the inner wall of the mixing cylinder 2; the separation mechanism 27 comprises separation sleeves 28, round head cones 29, piercing springs 30, piercing electromagnets 31 and piercing magnets 32, a plurality of separation sleeves 28 are arranged on the lateral wall of the motor shaft 13, the round head cone 29 is slidingly arranged in the interior of the separation sleeve 28, the piercing spring 30 is arranged between the round head cone 29 and the inner wall of the separation sleeve 28, the piercing electromagnet 31 is arranged on the inner wall of one end of the separation sleeve 28 away from the round head cone 29, and the piercing magnet 32 is arranged on one end of the round head cone 29 close to the piercing electromagnet 31, and the piercing electromagnet 31 and the piercing magnet 32 are oppositely arranged.

[0022] The upper wall of the base 1 is provided with a controller 33.

[0023] The controller 33 is electrically connected with the driving motor 12, the distance-reducing electromagnet 20, the thermoelectric refrigeration piece 24 and the piercing electromagnet 31 respectively.

[0024] The model of the thermoelectric refrigeration piece 24 is SP4040079L1-LT.

[0025] In specific use, in the initial state, the expansion spring 18 and the piercing spring 30 are arranged in elongation respectively, the pressing plate 19 and the round head cone 29 are arranged in close contact with the inner wall of the copper cylinder 16, The controller 33 controls the distance-reducing electromagnet 20 and the piercing electromagnet 31 to generate magnetism respectively, the distance-reducing electromagnet 20 and the pressing magnet 21 are arranged in opposite poles, the piercing electromagnet 31 and the piercing magnet 32 are arranged in opposite poles, the distance-reducing electromagnet 20 is fixed on the lateral wall of the stirring plate 15 and magnetically adsorbs the pressing magnet 21, the pressing magnet 21 drives the pressing plate 19 to slide along the stirring plate 15 by deformation of the expansion spring 18, the pressing plate 19 is away from the inner wall of the mixing cylinder 2, the distance between the pressing plate 19 and the inner wall of the mixing cylinder 2 is increased, the piercing electromagnet 31 is fixed on the inner wall of the round head cone 29 and magnetically adsorbs the piercing magnet 32, and the piercing magnet 32 slides away from the inner wall of the mixing cylinder 2 by deformation of the piercing spring 30 along the round head cone 29. The positioning bolt 7 is manually rotated and rotated out from the inside of the threaded hole 6, the positioning frame 5 is taken off from the upper wall of the mixing cylinder 2, the positioning frame 5 drives the stirring plate 15 to be away from the interior of the copper cylinder 16 through the motor box 11, the positioning frame 5 drives the anti-overflow plate 9 to be away from the upper wall of the copper cylinder 16 through the connecting rod 8, the motor shaft 13 drives the clamping block 34 to be away from the interior of the clamping groove 35, the operator puts the crushed chalk head powder into the interior of the copper cylinder 16, then adds water into the interior of the copper cylinder 16, and the chalk head powder is mixed with the water. The positioning frame 5 is reset, the positioning bolt 7 is screwed into the threaded hole 6, the controller 33 controls the driving motor 12 to start, the driving motor 12 drives the stirring plate 15 to rotate through the motor shaft 13, and the stirring plate 15 stirs the chalk head powder in the copper cylinder 16. After the chalk head powder is stirred into a paste, the controller 33 controls the current flowing into the distance-reducing electromagnet 20 to decrease, the magnetic property of the distance-reducing electromagnet 20 is weakened, the extrusion magnet 21 drives the extrusion plate 19 to approach the inner wall of the copper cylinder 16 by the deformation of the expansion spring 18, the distance between the extrusion plate 19 and the inner wall of the copper cylinder 16 is shortened, the extrusion plate 19 keeps a distance from the inner wall of the copper cylinder 16, the motor shaft 13 drives the extrusion plate 19 to rotate through the stirring plate 15, and the paste in the copper cylinder 16 is centrifuged to the inner wall of the copper cylinder 16. Under the rotation of the distance-reducing extrusion plate 19, the paste in the copper cylinder 16 is extruded and adhered to the inner wall of the copper cylinder 16; The controller 33 controls the driving motor 12 to stop driving the motor shaft 13 to rotate, and the controller 33 controls the thermoelectric refrigeration piece 24 to start. The thermoelectric refrigeration piece 24 heats the inside of the mixing cylinder 2 through the heating end, the temperature of the mixing cylinder 2 rises, the annular copper rod 26 is heated, the annular copper rod 26 surrounds the outside of the copper cylinder 16, the annular copper rod 26 heats the copper cylinder 16, and the copper cylinder 16 solidifies the paste adhered to the inner wall thereof. In order to avoid that the paste loses adhesion due to a large degree of solidification, only one side of the paste adhered to the inner wall of the copper cylinder 16 is solidified; At this time, the controller 33 controls the piercing electromagnet 31 to be powered off, the magnetic field between the piercing electromagnet 31 and the piercing magnet 32 disappears, the piercing magnet 32 pushes the round head cone 29 to slide along the separation sleeve 28 by the deformation of the piercing spring 30, the round head cone 29 slides out of the inside of the separation sleeve 28 and pokes the paste adhered to the inner wall of the copper cylinder 16, with the increase of the heating time of the paste, the side of the paste in contact with the copper cylinder 16 is gradually solidified, and the adsorption force between the paste and the inner wall of the copper cylinder 16 is weakened; The controller 33 controls the driving motor 12 to rotate at a low speed, the driving motor 12 drives the separation sleeve 28 to rotate at a low speed through the motor shaft 13, the separation sleeve 28 drives the paste adhered to the inner wall of the copper cylinder 16 to deflect through the round head cone 29, the controller 33 controls the thermoelectric refrigeration piece 24 and the driving motor 12 to stop working, and the separation of the paste is completed; The operator manually rotates the positioning bolt 7, the positioning bolt 7 is rotated out from the inside of the threaded hole 6, the positioning frame 5 is lifted, the positioning frame 5 drives the motor 12 out of the inside of the copper barrel 16 through the motor box 11, the motor 12 takes out the paste from the inside of the copper barrel 16 under the support of the round head cone 29, the controller 33 controls the start of the driving electromagnet 31, the driving electromagnet 31 generates magnetism after being electrified, the driving electromagnet 31 is adsorbed into the penetrating magnet 32 through magnetic force, the penetrating magnet 32 drives the round head cone 29 to retract into the inside of the separation sleeve 28, the round head cone 29 is away from the paste, the paste falls off from the outside of the motor shaft 13, the paste is put into the mold for molding, the recycling of the chalk head is completed; the above operation is repeated next time.

[0026] It should be noted that the relational terms herein such as first and second and the like are used solely to distinguish one entity or action from another, without necessarily requiring or implying any such actual relationship or order between such entities or actions. Moreover, the terms "comprises", "comprising", or any other variations thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but can include other elements not expressly listed or inherent to such process, method, article, or apparatus.

[0027] The above describes the technical scheme and its implementation, which is not limited, and the drawings only show one of the embodiments of the technical scheme, and the actual structure is not limited thereto. In general, if a person skilled in the art is inspired by it, without departing from the purpose of the technical scheme, without creative design, similar structure and embodiments of the technical scheme can be designed, which should belong to the protection scope of the technical scheme.

Claims

1. A device for processing waste chalk ends for teaching, comprising a base (1) and a mixing drum (2), characterized in that: The invention also includes an integrated mixing mechanism (3) and a heat-release discharging mechanism (22), wherein the mixing cylinder (2) is arranged on the upper wall of the base (1), the mixing cylinder (2) is provided with an upper opening, the integrated mixing mechanism (3) is provided on the mixing cylinder (2), the heat-release discharging mechanism (22) is provided on the side wall of the mixing cylinder (2), the integrated mixing mechanism (3) includes a positioning mechanism (4), a driving mechanism (10), a stirring mechanism (14) and an expansion mechanism (17), the positioning mechanism (4) is provided On the upper wall of the mixing barrel (2), the driving mechanism (10) is arranged on the bottom wall of the positioning mechanism (4), the stirring mechanism (14) is arranged at one end of the driving mechanism (10) away from the positioning mechanism (4), the expansion mechanism (17) is arranged on the stirring mechanism (14), and the thermal separation discharge mechanism (22) includes a heating mechanism (23) and a separation mechanism (27), the heating mechanism (23) is arranged on the side wall of the mixing barrel (2), and the separation mechanism (27) is arranged on the stirring mechanism (14); The driving mechanism (10) includes a motor shaft (13); The heating mechanism (23) includes a thermoelectric cooling sheet (24), a fixed block (25) and an annular copper rod (26), wherein the thermoelectric cooling sheets (24) are symmetrically arranged on the side walls at both ends of the mixing barrel (2) in a group of two, the thermoelectric cooling sheets (24) are arranged through the inner wall of the mixing barrel (2), and the heating end of the thermoelectric cooling sheet (24) is arranged inside the mixing barrel (2), multiple groups of the fixed blocks (25) are arranged on the inner wall of the mixing barrel (2), and the annular copper rod (26) is arranged through one end of the fixed block (25) away from the inner wall of the mixing barrel (2); The separation mechanism (27) includes a separation sleeve (28), a round cone (29), a piercing spring (30), a piercing electromagnet (31) and a piercing magnet (32). Multiple groups of the separation sleeves (28) are arranged on the side wall of the motor shaft (13). The round cone (29) is slidably arranged inside the separation sleeve (28). The piercing spring (30) is arranged between the round cone (29) and the inner wall of the separation sleeve (28). The piercing electromagnet (31) is arranged on the inner wall of one end of the separation sleeve (28) away from the round cone (29). The piercing magnet (32) is arranged on one end of the round cone (29) close to the piercing electromagnet (31). The piercing electromagnet (31) and the piercing magnet (32) are arranged relative to each other.

2. The device for processing waste chalk ends for teaching according to claim 1, characterized in that: The positioning mechanism (4) comprises a positioning frame (5), a threaded hole (6), a positioning bolt (7), a connecting rod (8) and an anti-overflow plate (9); the positioning frame (5) is arranged on the upper wall of the mixing cylinder (2); a plurality of groups of the threaded holes (6) are arranged on the upper wall of the mixing cylinder (2); the positioning bolt (7) is passed through an end of the positioning frame (5) close to the threaded hole (6); an end of the positioning bolt (7) away from the positioning frame (5) is arranged inside the threaded hole (6); the positioning bolt (7) is threadedly connected to the threaded hole (6); a plurality of groups of the connecting rods (8) are arranged on the bottom wall of the positioning frame (5); and the anti-overflow plate (9) is arranged on a side of the connecting rod (8) away from the positioning frame (5).

3. The device for processing waste chalk ends for teaching according to claim 2, characterized in that: The driving mechanism (10) further comprises a motor box (11), a driving motor (12), a clamping block (34), a clamping slot (35) and a rotating block (36); the motor box (11) is arranged on the bottom wall of the positioning frame (5); the driving motor (12) is arranged inside the motor box (11); the motor shaft (13) passes through the motor box (11) and is arranged at the power end of the driving motor (12); the clamping block (34) is arranged on a side of the motor shaft (13) away from the driving motor (12); the rotating block (36) is rotatably arranged on the bottom wall of the mixing barrel (2); the clamping slot (35) is arranged on the upper wall of the rotating block (36); the clamping slot (35) is arranged with an upper end opening, and the clamping block (34) is clamped inside the clamping slot (35).

4. The device for processing waste chalk ends for teaching according to claim 3, characterized in that: The stirring mechanism (14) comprises a stirring plate (15) and a copper cylinder (16), wherein a plurality of groups of the stirring plates (15) are arranged at one end of the motor shaft (13) away from the driving motor (12), and the copper cylinder (16) is arranged on the bottom wall of the mixing cylinder (2), and the copper cylinder (16) is opened at the upper end, and the stirring plates (15) are located inside the copper cylinder (16).

5. The device for processing waste chalk ends for teaching according to claim 4, characterized in that: The expansion mechanism (17) comprises an expansion spring (18), an extrusion plate (19), a retracting electromagnet (20) and an extrusion magnet (21); the extrusion plate (19) is slidably arranged at one end of the stirring plate (15) away from the motor shaft (13); the expansion spring (18) is arranged between the interior of the extrusion plate (19) and the side wall of the stirring plate (15); the retracting electromagnet (20) is arranged on the side of the stirring plate (15) away from the motor shaft (13); the extrusion magnet (21) is arranged on the side of the extrusion plate (19) close to the retracting electromagnet (20); and the retracting electromagnet (20) and the extrusion magnet (21) are arranged opposite to each other.

6. The device for processing waste chalk ends for teaching according to claim 5, characterized in that: A controller (33) is provided on the upper wall of the base (1).

7. The device for processing waste chalk ends for teaching according to claim 6, characterized in that: The controller (33) is electrically connected to the drive motor (12), the shortening electromagnet (20), the thermoelectric cooling plate (24), and the spur drive electromagnet (31), respectively.

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