Concrete raw material pre-stirring device and method for cement activity research test

Abstract

The invention relates to the technical field of concrete raw material mixing, and discloses a concrete raw material pre-stirring device and method for a cement activity research test, the concrete raw material pre-stirring device comprises a barrel body, and further comprises a fixing ring, a first circular groove is formed in the top of the barrel body, and the fixing ring is fixedly mounted in the first circular groove; and the quantitative intermittent discharging assembly is used for performing quantitative intermittent discharging on the mixture in the hopper. According to the invention, when a mixture and water are mixed, the mixture in the hopper is intermittently and quantitatively discharged, and after the mixture is discharged into the barrel body, a stirring rod mixes the water and the mixture entering the barrel body for a period of time, and the other mixture enters the barrel body, so that the effect of step-by-step mixing is realized; and the situation that the mixing effect is poor when all the mixed materials and water are added into the barrel body at a time is avoided, and then the using effect of the equipment is improved.

Description

Technical Field

[0001] The invention relates to the technical field of concrete raw material mixing, in particular to a concrete raw material pre-mixing device and method for cement activity research test. Background Art

[0002] Cement is a powdery hydraulic inorganic gelling material. It forms a slurry after adding water and stirring. It can harden in both air and water, and can firmly bond sand, stone and other materials together. Cement activity is an important indicator of cement. When studying and testing cement activity, a concrete raw material pre-mixing device is needed to pre-mix the mixture of cement, aggregate and admixture with water, so as to prepare concrete samples with specific properties under controlled conditions.

[0003] For example, the premixed concrete raw material mixing device disclosed in the patent with announcement number CN209665845U can mix the mixture and water, but during mixing, the mixture and water are usually added into the barrel at one time without the function of step-by-step feeding, resulting in poor mixing effect of the mixture and water, which reduces the effect of use. Therefore, it is urgent to design a concrete raw material premixing device for cement activity research test. Summary of the invention

[0004] The purpose of the present invention is to solve the problems existing in the prior art and to propose a concrete raw material pre-mixing device and method for cement activity research test.

[0005] In order to achieve the above object, the present invention adopts the following technical solutions:

[0006] A concrete raw material pre-mixing device for cement activity research test, comprising a barrel body and also comprising:

[0007] A fixing ring, a first circular groove is provided on the top of the barrel body, and the fixing ring is fixedly installed in the first circular groove;

[0008] The hopper is vertically fixed on the barrel, a retaining ring is fixedly sleeved at the end of the hopper, and a mixture is arranged inside the hopper;

[0009] A stirring rod, which is vertically rotatably installed at the bottom of the barrel, and the top of the stirring rod passes through the barrel;

[0010] The quantitative intermittent feeding component is arranged inside and at the bottom of the barrel body, and is used for quantitative intermittent feeding of the mixed material inside the hopper.

[0011] As a further technical solution of the present invention, the quantitative intermittent feeding component includes: a first disc, the first disc is horizontally arranged above the barrel body and the fixed ring, the first disc is rotatably arranged at the bottom of the baffle ring, a ring is rotatably sleeved on the surface of the first disc, support frames are fixedly installed at both ends of the surface of the ring, and the two support frames are fixedly installed on the top of the barrel body.

[0012] As a further technical solution of the present invention, a second disc is slidably arranged inside the fixed ring, and the second disc is provided with two symmetrically arranged second circular holes. A lower barrel is vertically fixedly installed in the two second circular holes, and a cover plate is hingedly connected to the bottom of each lower barrel by an elastic hinge, and strip plates are fixedly installed on opposite sides of the two cover plates.

[0013] As a further technical solution of the present invention, two symmetrically arranged first circular holes are opened on the top of the first disc, and feeding barrels are vertically fixedly installed inside the two first circular holes. The two feeding barrels are respectively slidably arranged inside the two lower feeding barrels, and an electric telescopic rod is vertically fixedly installed on the top of the first disc, and the output end of the electric telescopic rod passes through the first disc and is fixedly installed on the top of the second disc.

[0014] As a further technical solution of the present invention, a groove plate is horizontally arranged below the second disc, an open groove is opened on one side of the groove plate, and two strip plates slide between the bottom of the groove plate and the open groove.

[0015] As a further technical solution of the present invention, an annular groove is opened at the bottom of the second disc, and four evenly distributed arc-shaped slope sliders slide inside the annular groove. Connecting rods are vertically fixed on the bottom of the four arc-shaped slope sliders, and the bottoms of the four connecting rods are fixedly installed on the top of the groove disc.

[0016] As a further technical solution of the present invention, two symmetrically arranged first telescopic rods are vertically fixedly installed at the bottom of the trough plate, and horizontal plates are horizontally fixedly installed at the bottom of the two first telescopic rods, and both ends of the two horizontal plates are fixedly installed on the inner wall of the barrel.

[0017] As a further technical solution of the present invention, the surface of the stirring rod is rotatably connected between the groove plate and the second disc, a missing gear is fixedly sleeved on the top of the stirring rod, a first gear is meshed on the side of the missing gear, a support plate is rotatably installed on the bottom of the first gear, and the other end of the support plate is fixedly installed on the corresponding support frame, a gear ring is fixedly installed on the bottom of the first disc, and the first gear and the gear ring are meshed.

[0018] As a further technical solution of the present invention, a discharge pipe is installed on the outside of the barrel body, a drive motor is installed at the bottom of the barrel body, the output shaft of the drive motor is installed at the bottom center of the stirring rod, and a water inlet pipe is also installed on the top of the barrel body.

[0019] A method for premixing concrete raw materials for cement activity research test comprises the following steps:

[0020] S1: First, connect the water inlet pipe to the liquid pump connected to the water source, and the liquid pump will pump water into the cylinder. It should be noted that the liquid pump can be started intermittently and continuously, and then the mixed material enters the hopper. The mixed material in the hopper will enter the feeding cylinder and the unloading plate connected thereto, and the cover plate here is in a closed state;

[0021] S2: Synchronously start the driving motor to drive the stirring rod to rotate. The rotation of the stirring rod can not only mix the water and the mixed material inside the barrel, but also drive the missing gear to rotate. The rotation of the missing gear drives the first gear to rotate intermittently. The intermittent rotation of the first gear drives the gear ring to rotate intermittently. The intermittent rotation of the gear ring drives the first disc to rotate intermittently. The intermittent rotation of the first disc drives the two feeding hoppers to rotate intermittently. The intermittent rotation of the two feeding hoppers drives the two unloading barrels and the second disc to rotate intermittently. Due to the arrangement of the first telescopic rod, the annular groove and the connecting rod, the groove disc will not rotate when the second disc rotates, so that the two feeding barrels and the two unloading barrels can rotate and change positions together.

[0022] S3: When the feed barrel and the discharge barrel with the mixed material move to the open slot, the strip plate will enter the open slot due to the elastic hinge and the gravity of the mixed material inside the discharge barrel. At this time, the cover plate will open and the mixed material will fall into the barrel body, and the stirring rod will stir and mix the water and mixed material inside the barrel body.

[0023] S4: As the feeding barrel and the discharge barrel continue to rotate after the discharge is completed, the strip plate will pass through the open slot and move the strip plate. The movement of the strip plate drives the cover plate to close. In summary, the mixture can be discharged continuously by reciprocating in sequence to achieve step-by-step mixing of the mixture and water, thereby ensuring the overall premixing effect of the concrete. When it is necessary to change the volume inside the feeding barrel and the discharge barrel to change the amount of the mixture, it is only necessary to drive the second disc, the discharge barrel, the cover plate and the slot disc to move up and down through the electric telescopic rod.

[0024] The beneficial effects of the present invention are:

[0025] Firstly, the present invention can intermittently and quantitatively discharge the mixed material in the hopper when mixing the mixed material and water through the arrangement of the quantitative intermittent discharge assembly, the fixing ring and the barrel body, and after the mixed material is discharged into the barrel body, the stirring rod will mix the water and the mixed material entering the barrel body for a period of time before other mixed materials enter the barrel body, so as to achieve the effect of step-by-step mixing, avoid the situation that all the mixed material and water are added into the barrel body at one time and the mixing effect is not good, thereby improving the use effect of the equipment;

[0026] Secondly, the present invention, through the arrangement of the quantitative intermittent feeding component, the fixing ring and the barrel body, can adjust the amount of the mixed material entering the barrel body each time according to the different mixed materials, so that the volume formed by the feeding barrel and the discharge barrel becomes smaller, further adapting to different occasions. In addition, when the discharge barrel reaches the specified position, the cover plate will automatically open for feeding, thereby improving the convenience of using the equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 This is a schematic structural diagram of a concrete raw material pre-mixing device for cement activity research and testing proposed by the present invention;

[0028] Figure 2 This is a schematic diagram of the cross-sectional structure of a barrel of a concrete raw material pre-mixing device for cement activity research and testing proposed by the present invention;

[0029] Figure 3 for Figure 2 A magnified schematic diagram of part A;

[0030] Figure 4 This is a schematic cross-sectional view of the fixed ring structure of a concrete raw material pre-mixing device for cement activity research and testing proposed by the present invention;

[0031] Figure 5 This is a schematic structural diagram of a concrete raw material pre-mixing device for cement activity research and testing proposed by the present invention after the first disc and the second disc are separated;

[0032] Figure 6 This is a schematic structural diagram of a concrete raw material pre-mixing device for cement activity research and testing proposed by the present invention after the corresponding lower barrel and the second disc are separated;

[0033] Figure 7 for Figure 6 A magnified schematic diagram of part B;

[0034] Figure 8 This is a schematic structural diagram of a concrete raw material pre-mixing device for cement activity research and testing proposed by the present invention after the second disc is removed;

[0035] Fig. 9 This is a schematic structural diagram of a concrete raw material pre-mixing device for cement activity research and testing proposed by the present invention after the first disc and the second disc are removed.

[0036] In the figure: 1. barrel; 2. water inlet pipe; 3. hopper; 4. retaining ring; 5. first disc; 6. electric telescopic rod; 7. support frame; 8. discharge pipe; 9. driving motor; 10. stirring rod; 11. fixing ring; 12. discharge barrel; 13. cover plate; 14. groove plate; 15. first telescopic rod; 16. horizontal plate; 17. strip plate; 18. sleeve ring; 19. feed barrel; 20. gear ring; 21. first gear; 22. support plate; 23. missing gear; 24. annular groove; 25. arc slope slider; 26. connecting rod; 27. opening groove; 28. second disc. DETAILED DESCRIPTION

[0037] In order to make the technical means, creative features, objectives and effects achieved by the present invention easy to understand, the present invention is further explained below in conjunction with specific implementation methods.

[0038] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0039] Please refer to the attached Figure 1 -Attached Fig. 9 A concrete raw material pre-mixing device for cement activity research test comprises a barrel body 1, and also comprises: a fixed ring 11, a hopper 3, a stirring rod 10 and a quantitative intermittent feeding assembly. A first circular groove is opened on the top of the barrel body 1, and the fixed ring 11 is fixedly installed in the first circular groove. The hopper 3 is vertically fixedly installed above the barrel body 1. A retaining ring 4 is fixedly sleeved at the end of the hopper 3. A mixture is arranged inside the hopper 3. The stirring rod 10 is vertically rotatably installed at the bottom of the barrel body 1. The top end of the stirring rod 10 passes through the barrel body 1. The quantitative intermittent feeding assembly is arranged inside and at the bottom of the barrel body 1. The quantitative intermittent feeding assembly is used for quantitative intermittent feeding of the mixture inside the hopper 3.

[0040] As described above, water and mixed materials can enter the barrel body 1 step by step, and only after the water and mixed materials entering the barrel body 1 are mixed, the water and mixed materials will enter the barrel body 1 again, thereby ensuring the premixing effect of concrete.

[0041] Please refer to the attached Figure 1 -Attached Fig. 9In a preferred embodiment, the quantitative intermittent feeding assembly includes: a first disc 5, the first disc 5 is horizontally arranged above the barrel body 1 and the fixed ring 11, the first disc 5 is rotatably arranged at the bottom of the retaining ring 4, the surface of the first disc 5 is rotatably sleeved with a collar 18, both ends of the surface of the collar 18 are fixedly installed with support frames 7, the two support frames 7 are fixedly installed on the top of the barrel body 1, the fixed ring 11 is slidably arranged with a second disc 28, the second disc 28 is provided with two symmetrically arranged second circular holes, and the two second circular holes are vertically fixedly installed with The bottom of each lower material barrel 12 is hinged with a cover plate 13 through an elastic hinge, and strip plates 17 are fixedly installed on both opposite sides of the two cover plates 13. The top of the first disc 5 is provided with two symmetrically arranged first circular holes, and the insides of the two first circular holes are vertically fixedly installed with a feed barrel 19. The two feed barrels 19 are respectively slidably arranged inside the two lower material barrels 12. The top of the first disc 5 is vertically fixedly installed with an electric telescopic rod 6. The output end of the electric telescopic rod 6 passes through the first disc 5 and is fixedly installed on the top of the second disc 28. The second disc A slot plate 14 is horizontally arranged below 28, and an open slot 27 is opened on one side of the slot plate 14. Two strip plates 17 slide between the bottom of the slot plate 14 and the open slot 27. An annular groove 24 is opened at the bottom of the second disc 28. Four evenly distributed arc-shaped slope sliders 25 slide inside the annular groove 24. Connecting rods 26 are vertically fixedly installed at the bottom of the four arc-shaped slope sliders 25. The bottoms of the four connecting rods 26 are fixedly installed on the top of the slot plate 14. Two symmetrically arranged first telescopic rods 15 are vertically fixedly installed at the bottom of the slot plate 14. The two The bottom of the first telescopic rod 15 is horizontally fixed with a horizontal plate 16, and both ends of the two horizontal plates 16 are fixedly installed on the inner wall of the barrel body 1. The surface of the stirring rod 10 is rotatably connected between the groove plate 14 and the second disc 28. A missing gear 23 is fixedly sleeved on the top of the stirring rod 10, and a first gear 21 is meshed on the side of the missing gear 23. A support plate 22 is rotatably installed at the bottom of the first gear 21, and the other end of the support plate 22 is fixedly installed on the corresponding support frame 7. A gear ring 20 is fixedly installed at the bottom of the first disc 5, and the first gear 21 is meshed with the gear ring 20.

[0042] Preferably, when the mixture and water are mixed, the mixture inside the hopper 3 can be fed intermittently and quantitatively, and after the mixture is fed into the barrel body 1, the stirring rod 10 will mix the water and the mixture entering the barrel body 1 for a period of time before other mixtures enter the barrel body 1, so as to achieve the effect of step-by-step mixing, avoiding the situation where all the mixture and water are added to the barrel body 1 at once and the mixing effect is poor.

[0043] Please refer to the attached Figure 1 -Attached Figure 4In a preferred embodiment, a discharge pipe 8 is installed on the outside of the barrel body 1, a drive motor 9 is installed at the bottom of the barrel body 1, and the output shaft of the drive motor 9 is installed at the bottom center of the stirring rod 10. The top of the barrel body 1 is also connected to a water inlet pipe 2;

[0044] Furthermore, the discharge pipe 8 is used to discharge the mixed concrete out of the barrel body 1 .

[0045] Working principle of the present invention:

[0046] First, connect the water inlet pipe 2 to the liquid pump connected to the water source, and the liquid pump will pump water into the cylinder. It should be noted that the liquid pump can be started intermittently continuously, and then the mixed material enters the hopper 3. The mixed material in the hopper 3 will enter the feed cylinder 19 and the discharge plate connected thereto, and the cover plate 13 here is in a closed state;

[0047] The drive motor 9 is started synchronously to drive the stirring rod 10 to rotate. The rotation of the stirring rod 10 can not only mix the water and the mixed material inside the barrel body 1, but also drive the missing gear 23 to rotate. The rotation of the missing gear 23 drives the first gear 21 to rotate intermittently. The intermittent rotation of the first gear 21 drives the gear ring 20 to rotate intermittently. The intermittent rotation of the gear ring 20 drives the first disc 5 to rotate intermittently. The intermittent rotation of the first disc 5 drives the two feeding hoppers 3 to rotate intermittently. The intermittent rotation of the two feeding hoppers 3 drives the two unloading barrels 12 and the second disc 28 to rotate intermittently. Due to the arrangement of the first telescopic rod 15, the annular groove 24 and the connecting rod 26, the groove disc 14 will not rotate when the second disc 28 rotates, so that the two feeding barrels 19 and the two unloading barrels 12 can rotate and change positions together.

[0048] When the feed barrel 19 and the discharge barrel 12 with the mixed material move to the opening groove 27, due to the elastic hinge and the gravity of the mixed material inside the discharge barrel 12, the strip plate 17 will enter the opening groove 27, and then the cover plate 13 will open and the mixed material will fall into the barrel body 1, and the stirring rod 10 will stir and mix the water and the mixed material inside the barrel body 1;

[0049] As the feeding barrel 19 and the discharge barrel 12 continue to rotate after the unloading is completed, the strip plate 17 will pass through the open groove 27 and move the strip plate 17. The movement of the strip plate 17 drives the cover plate 13 to close. In summary, the mixture can be continuously unloaded by reciprocating in sequence to achieve step-by-step mixing of the mixture and water, thereby ensuring the overall premixing effect of the concrete. When it is necessary to change the volume inside the feeding barrel 19 and the discharge barrel 12 to change the amount of the mixture contained, it is only necessary to drive the second disc 28, the discharge barrel 12, the cover plate 13 and the groove disc 14 to move up and down through the electric telescopic rod 6, thereby improving the application scope of the equipment.

[0050] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

Claims

1. A concrete raw material pre-mixing device for cement activity research test, comprising a barrel (1), characterized in that: Also includes: A fixing ring (11), wherein a first circular groove is formed on the top of the barrel body (1), and the fixing ring (11) is fixedly installed in the first circular groove; A hopper (3), the hopper (3) being vertically fixedly installed above the barrel (1), a retaining ring (4) being fixedly sleeved at the end of the hopper (3), and a mixed material being arranged inside the hopper (3); A stirring rod (10), the stirring rod (10) is vertically rotatably mounted on the bottom of the barrel (1), and the top end of the stirring rod (10) passes through the barrel (1); A quantitative intermittent feeding component is arranged inside and at the bottom of the barrel (1), and is used for quantitatively and intermittently feeding the mixed material inside the hopper (3).

2. A concrete raw material pre-mixing device for cement activity research test according to claim 1, characterized in that: The quantitative intermittent feeding component comprises: a first disc (5), the first disc (5) being horizontally arranged above the barrel body (1) and the fixing ring (11), the first disc (5) being rotatably arranged at the bottom of the retaining ring (4), a sleeve (18) being rotatably sleeved on the surface of the first disc (5), support frames (7) being fixedly mounted at both ends of the surface of the sleeve (18), and the two support frames (7) being fixedly mounted on the top of the barrel body (1).

3. A concrete raw material pre-mixing device for cement activity research test according to claim 2, characterized in that: A second disc (28) is slidably arranged inside the fixing ring (11), and the second disc (28) is provided with two symmetrically arranged second circular holes, and a lower barrel (12) is vertically fixedly installed in each of the two second circular holes, and a cover plate (13) is hingedly connected to the bottom of each lower barrel (12) through an elastic hinge, and strip plates (17) are fixedly installed on opposite sides of the two cover plates (13).

4. A concrete raw material pre-mixing device for cement activity research test according to claim 3, characterized in that: Two symmetrically arranged first circular holes are provided on the top of the first circular disk (5), and a feeding cylinder (19) is vertically fixedly installed inside the two first circular holes. The two feeding cylinders (19) are slidably arranged inside the two lower cylinders (12), respectively. An electric telescopic rod (6) is vertically fixedly installed on the top of the first circular disk (5), and the output end of the electric telescopic rod (6) passes through the first circular disk (5) and is fixedly installed on the top of the second circular disk (28).

5. A concrete raw material pre-mixing device for cement activity research and testing according to claim 4, characterized in that: A grooved plate (14) is horizontally arranged below the second circular plate (28), an open groove (27) is provided on one side of the grooved plate (14), and the two strip plates (17) slide between the bottom of the grooved plate (14) and the open groove (27).

6. A concrete raw material pre-mixing device for cement activity research and testing according to claim 5, characterized in that: An annular groove (24) is provided at the bottom of the second circular disc (28), and four evenly distributed arc-shaped sloped sliding blocks (25) slide inside the annular groove (24). Connecting rods (26) are vertically fixedly installed at the bottom of the four arc-shaped sloped sliding blocks (25), and the bottoms of the four connecting rods (26) are fixedly installed on the top of the groove disc (14).

7. A concrete raw material pre-mixing device for cement activity research and testing according to claim 6, characterized in that: Two symmetrically arranged first telescopic rods (15) are vertically fixedly installed on the inner bottom of the trough plate (14), and a transverse plate (16) is horizontally fixedly installed on the bottom of the two first telescopic rods (15), and both ends of the two transverse plates (16) are fixedly installed on the inner wall of the barrel body (1).

8. A concrete raw material pre-mixing device for cement activity research and testing according to claim 7, characterized in that: The surface of the stirring rod (10) is rotatably connected to the groove plate (14) and the second disc (28); a missing gear (23) is fixedly sleeved on the top of the stirring rod (10); a first gear (21) is meshed on the side of the missing gear (23); a support plate (22) is rotatably mounted on the bottom of the first gear (21); the other end of the support plate (22) is fixedly mounted on the corresponding support frame (7); a gear ring (20) is fixedly mounted on the bottom of the first disc (5); and the first gear (21) and the gear ring (20) are meshed.

9. The concrete raw material pre-mixing device for cement activity research test according to claim 1, characterized in that: The barrel body (1) is connected to the outside thereof and is provided with a discharge pipe (8). The bottom of the barrel body (1) is provided with a drive motor (9). The output shaft of the drive motor (9) is installed at the bottom center of the stirring rod (10). The top of the barrel body (1) is also connected to a water inlet pipe (2).

10. A method for premixing concrete raw materials for cement activity research and testing, using the device for premixing concrete raw materials for cement activity research and testing according to claim 1-9, characterized in that: The following steps are involved: S1: First, connect the water inlet pipe (2) to a liquid pump connected to a water source, and the liquid pump will pump water into the cylinder. It should be noted that the liquid pump can be started intermittently and continuously, and then the mixed material enters the hopper (3). The mixed material in the hopper (3) will enter the feed cylinder (19) and the discharge plate connected thereto, and the cover plate (13) here is in a closed state; S2: Synchronously start the driving motor (9) to drive the stirring rod (10) to rotate. The rotation of the stirring rod (10) not only mixes the water and the mixed material inside the barrel (1), but also drives the missing gear (23) to rotate. The rotation of the missing gear (23) drives the first gear (21) to rotate intermittently. The intermittent rotation of the first gear (21) drives the gear ring (20) to rotate intermittently. The intermittent rotation of the gear ring (20) drives the first disc (5) to rotate intermittently. The intermittent rotation of the first disc (5) drives the two feeding hoppers (3) to rotate intermittently. The intermittent rotation of the two feeding hoppers (3) drives the two discharge hoppers and the second disc (28) to rotate intermittently. Due to the arrangement of the first telescopic rod (15), the annular groove (24) and the connecting rod (26), the groove disc (14) will not rotate when the second disc (28) rotates, so that the two feeding barrels (19) and the two discharge barrels (12) can rotate together to change positions. S3: When the feed barrel (19) and the discharge barrel (12) containing the mixed material move to the open groove (27), due to the elastic hinge and the gravity of the mixed material inside the discharge barrel (12), the strip plate (17) enters the open groove (27), and then the cover plate (13) opens to allow the mixed material to fall into the barrel body (1), and the stirring rod (10) stirs and mixes the water and the mixed material inside the barrel body (1); S4: As the feeding barrel (19) and the discharge barrel (12) continue to rotate after the discharge is completed, the strip plate (17) will pass through the open groove (27) and move the strip plate (17), and the movement of the strip plate (17) drives the cover plate (13) to close. In summary, the mixture can be discharged continuously by reciprocating in sequence, so as to achieve step-by-step mixing of the mixture and water, thereby ensuring the overall premixing effect of the concrete. When it is necessary to change the volume inside the feeding barrel (19) and the discharge barrel (12) to change the amount of the mixture contained, it is only necessary to drive the second disc (28), the discharge barrel (12), the cover plate (13) and the groove plate (14) to move up and down through the electric telescopic rod (6).

Images