Mixer used in electret master batch preparation process

Abstract

The utility model relates to the technical field of electret master batch preparation, and discloses a mixer in the electret master batch preparation process, which comprises a machine body, a feed port is arranged at the top of the machine body, a discharge port is arranged at the bottom of the machine body, a mixing structure is arranged on the machine body, the mixing structure consists of a motor, a main shaft and a stirring shaft, according to the mixer in the electret master batch preparation process, by arranging a mixing structure and a disturbance structure, when a main shaft drives a stirring shaft to rotate, a rotating rod can be controlled to rotate, so that a connecting block drives a rack to move left and right and drives a large gear to rotate back and forth, and a small gear meshed with the large gear is driven by the large gear to rotate together; the rotation direction of the pinion is opposite to that of the bull gear, so that the rotation directions of the impellers driven by the two groups of vertical rods are opposite, at the moment, the electret master batches generating eddy current by the rapid rotation of the stirring shaft are close to one side of the pipe wall of the machine body, and the electret master batches are turned over by the two groups of impellers, thereby improving the stirring effect.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of electret master batch preparation, in particular to a mixer in the electret master batch preparation process. BACKGROUND

[0002] The electret master batch is prepared by using polypropylene as the base material and special additives, so that the additives are uniformly dispersed in the master batch, and in the spinning process of melt-blown cloth, 2-5 percent of the additives can effectively increase the density and depth of the charge trapping energy well in the melt-blown non-woven fabric, thereby improving the comprehensive filtration efficiency and heat resistance of the melt-blown non-woven fabric

[0003] The electret master batch needs to be stirred during preparation. The mixer in the electret master batch preparation process disclosed in the utility model with publication number CN220261587U realizes the mixing function through multiple stirring shafts. However, in actual operation, the electret master batch inside the mixer is subjected to high-speed stirring, which forms vortexes and causes the electret master batch to adhere to the wall of the mixer tank, making it difficult to be fully stirred. The stirring effect can only be improved by lengthening the stirring time, which results in low overall efficiency and the possibility of clumping in the electret master batch. During stirring, the overall stirring efficiency is further reduced. Therefore, we propose a mixer in the electret master batch preparation process. SUMMARY

[0004] The utility model aims to provide a mixer in the electret master batch preparation process to solve the problems raised in the background art.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical scheme: a mixer in the electret master batch preparation process, comprising a machine body, a feed inlet is arranged on the top of the machine body, a discharge outlet is arranged on the bottom of the machine body, a mixing structure is arranged on the machine body, the mixing structure is composed of a motor, a main shaft and a stirring shaft, a disturbance structure for improving the stirring effect is arranged on the stirring shaft and the machine body, and a driven part for cooperating with the disturbance structure is arranged on the stirring shaft.

[0006] Preferably, the disturbance structure comprises: a fixed rod, the bottom of the fixed rod is fixed on the inner wall of the body, the fixed rod penetrates the bottom of the main shaft and is in rotational connection with the main shaft, the fixed rod penetrates the bevel gear one and is in fixed connection with the bevel gear one, the bevel gear one is in engagement with the bevel gear two, the side, away from the fixed rod, of the bevel gear two is fixed with a rotating rod, the rotating rod penetrates the main shaft and the stirring shaft and is in rotational connection with the main shaft and the stirring shaft, the surface of the rotating rod is provided with a reciprocating sliding groove, the inner side of the reciprocating sliding groove of the surface of the rotating rod is slidably provided with a connecting block, the connecting block is slidably arranged on the inner wall of the stirring shaft, the side, away from the main shaft, of the connecting block is fixed with a rack, the rack is in engagement with the gear wheel, the gear wheel is in engagement with the pinion, the gear wheel and the pinion are penetrated by two groups of vertical rods and are in fixed connection with the gear wheel and the pinion, the two groups of vertical rods penetrate the stirring shaft and are in rotational connection with the stirring shaft, the two groups of vertical rods penetrate the two groups of impellers and are in fixed connection, when the main shaft drives the stirring shaft to rotate, the stirring shaft rotates with the rotating rod, the rotating rod drives the bevel gear two to rotate around the bevel gear one, since the bevel gear one is in a fixed state, the bevel gear two can drive the rotating rod to rotate, at this time, the connecting block slidably arranged in the reciprocating sliding groove of the surface of the rotating rod can move left and right, the connecting block drives the rack to move left and right, since the volume of the pinion is smaller than that of the gear wheel, the pinion will not be in engagement with the rack, when the rack moves left and right, the gear wheel can be driven to rotate back and forth, the pinion in engagement with the gear wheel is driven to rotate together with the gear wheel, but the rotating direction of the pinion is opposite to that of the gear wheel, thus the rotating directions of the two groups of vertical rods driving the impellers to rotate are opposite, at this time, the electret master batch subjected to the vortex generated by the rapid rotation of the stirring shaft is close to the pipe wall of the body, the electret master batch is stirred by the two groups of impellers, so that the stirring effect is improved, the gear wheel drives the pinion, so that the rotating speeds of the two groups of impellers are different, the two groups of impellers generate different flow fields in the body, the rapidly rotating impeller can improve the strong shear force to disperse the electret master batch and avoid the phenomenon of clumping, and the impeller with a slower rotating speed can generate a relatively mild convection to make the particles circulate and mix in a larger range, so that the mixing effect is further improved.

[0007] Preferably, the driven part comprises a slide rod, the slide rod is slidingly installed on the surface of the stirring shaft, a top rod is fixed on the side of the slide rod away from the main shaft, the top rod penetrates through the stirring shaft and is slidingly connected with the stirring shaft, a reset spring is fixed on the inner wall of the stirring shaft, the end of the reset spring away from the stirring shaft is fixed with the top rod, the vertical rod penetrates through and is fixed with the cam, the surface of the slide rod is fixed with a plug rod, the surface of the stirring shaft is hingedly connected with a push rod, a square slot is formed on the side of the push rod close to the slide rod, the end of the plug rod away from the slide rod is inserted into the square slot, when the vertical rod rotates, the vertical rod drives the cam to rotate, when the cam abuts against the top rod, the top rod can drive the slide rod to move towards the side close to the main shaft, when the top rod is not abutted, under the action of the reset spring, the top rod drives the slide rod to move towards the side away from the main shaft to reset, so that the slide rod is controlled to move back and forth, in the process of the slide rod moving back and forth, the plug rod inserted into the square slot controls the push rod, so that the push rod swings back and forth at the position hingedly connected with the stirring shaft, the electret master batch gathered in the machine body can be dispersed, so that the stirring effect is improved.

[0008] Preferably, the motor is fixed on the top of the machine body, the output shaft of the motor penetrates through the top of the machine body and is rotationally connected with the machine body, the output shaft of the motor is fixed with the top of the main shaft, the side surface of the main shaft is fixed with the stirring shaft, the main shaft and the stirring shaft are driven by the motor to rotate, so that the electret master batch in the machine body is stirred and mixed.

[0009] Compared with the prior art, the utility model provides a mixer in electret master batch preparation process has the following beneficial effects:

[0010] 1、the mixer in electret master batch preparation process, through setting up mixing structure and disturbance structure, when the main shaft drives the stirring shaft to rotate, the rotating shaft can be controlled to rotate, the connecting block drives the rack to move left and right, drives the gear wheel to rotate back and forth, the pinion meshing with the gear wheel is driven to rotate together by the gear wheel, but the rotating direction of the pinion is opposite to that of the gear wheel, and the rotating directions of the two groups of vertical rods driving the impeller are opposite, at this time, the electret master batch subjected to the vortex generated by the rapid rotation of the stirring shaft is close to the pipe wall of the machine body, and the electret master batch is turned over by the two groups of impellers, so that the stirring effect is improved.

[0011] 2、the mixer in electret master batch preparation process, through the gear wheel drives the pinion, so that the rotating speeds of the two groups of impellers are different, the two groups of impellers generate different flow fields in the machine body, the fast rotating impeller can improve strong shear force, disperses the electret master batch, avoids the phenomenon of gathering, and the slower rotating impeller can generate relatively mild convection, so that the particles circulate and mix in a larger range, and the mixing effect is further improved.

[0012] 3. The mixer in the preparation process of the electret master batch, through the disturbance structure and the driven part, when the vertical rod rotates, the vertical rod drives the cam to rotate, when the cam abuts on the jacking rod, the jacking rod can push the slide rod to move to the side close to the main shaft, when the jacking rod is not abutted, under the action of the reset spring, the jacking rod pushes the slide rod to move to the side away from the main shaft to reset, so that the slide rod is controlled to move back and forth, in the process of the slide rod moving back and forth, the inserting rod inserted in the square groove controls the push rod, so that the push rod swings back and forth at the hinged position with the stirring shaft, the electret master batch gathered in the machine body can be scattered, so that the stirring effect is improved. BRIEF DESCRIPTION OF DRAWINGS

[0013] Figure 1 It is the whole front view structural schematic diagram of the utility model;

[0014] Figure 2 It is the machine body section front view structural schematic diagram of the utility model;

[0015] Figure 3 It is the main shaft section view structural schematic diagram of the utility model;

[0016] Figure 4 It is the stirring shaft section view structural schematic diagram of the utility model;

[0017] Figure 5 It is the disturbance structure and driven part connecting structure schematic diagram of the utility model;

[0018] Figure 6 It is the disturbance structure schematic diagram of the utility model;

[0019] Figure 7 It is the vertical rod and driven part connecting structure schematic diagram of the utility model.

[0020] In the drawing: 1, machine body; 2, mixing structure; 21, motor; 22, main shaft; 23, stirring shaft; 3, disturbance structure; 31, fixed rod; 32, bevel gear one; 33, bevel gear two; 34, rotating rod; 35, reciprocating sliding groove; 36, connecting block; 37, rack; 38, gear; 39, pinion; 310, vertical rod; 311, impeller; 4, driven part; 41, slide rod; 42, jacking rod; 43, reset spring; 44, cam; 45, inserting rod; 46, push rod; 47, square groove. DETAILED DESCRIPTION

[0021] As Figures 1-7As shown, the utility model provides a kind of technical scheme: a mixer in the preparation process of electret master batch, including machine body 1, the top of machine body 1 is provided with feed inlet, the bottom of machine body 1 is provided with discharge gate, and mixing structure 2 is provided on machine body 1, and mixing structure 2 is composed of motor 21, main shaft 22 and stirring shaft 23, stirring shaft 23 and machine body 1 are provided with the disturbance structure 3 for improving stirring effect, and the driven part 4 for cooperating with disturbance structure 3 is provided on stirring shaft 23.

[0022] The disturbance structure 3 comprises a fixed rod 31, the bottom of the fixed rod 31 is fixed on the inner wall of the machine body 1, the fixed rod 31 penetrates the bottom of the main shaft 22 and is rotationally connected with the main shaft 22, the fixed rod 31 penetrates the bevel gear one 32 and is fixedly connected with the bevel gear one 32, the bevel gear one 32 is engaged with the bevel gear two 33, the side, away from the fixed rod 31, of the bevel gear two 33 is fixed with a rotating rod 34, the rotating rod 34 penetrates the main shaft 22 and the stirring shaft 23, the rotating rod 34 is rotationally connected with the main shaft 22 and the stirring shaft 23, the surface of the rotating rod 34 is provided with a reciprocating sliding groove 35, a connecting block 36 is slidingly installed in the reciprocating sliding groove 35 of the surface of the rotating rod 34, the connecting block 36 is slidingly installed on the inner wall of the stirring shaft 23, the side, away from the main shaft 22, of the connecting block 36 is fixed with a rack 37, the rack 37 is engaged with a large gear 38, the large gear 38 is engaged with a small gear 39, the large gear 38 and the small gear 39 are penetrated by two groups of vertical rods 310, and the two groups of vertical rods 310 are fixed with the large gear 38 and the small gear 39 respectively, the two groups of vertical rods 310 penetrate the stirring shaft 23 and are rotationally connected with the stirring shaft 23, the two groups of vertical rods 310 penetrate two groups of impellers 311 and are fixedly connected, when the main shaft 22 drives the stirring shaft 23 to rotate, the stirring shaft 23 rotates with the rotating rod 34, the rotating rod 34 drives the bevel gear two 33 to rotate around the bevel gear one 32, since the bevel gear one 32 is in a fixed state, the bevel gear two 33 can drive the rotating rod 34 to rotate, at this time, the connecting block 36 slidingly connected in the reciprocating sliding groove 35 of the surface of the rotating rod 34 can move left and right, the connecting block 36 drives the rack 37 to move left and right, since the volume of the small gear 39 is smaller than that of the large gear 38, the small gear 39 will not be engaged with the rack 37, when the rack 37 moves left and right, the rack 37 can drive the large gear 38 to rotate back and forth, the small gear 39 engaged with the large gear 38 is driven by the large gear 38 to rotate together, but the rotating direction of the small gear 39 is opposite to that of the large gear 38, thus the rotating directions of the two groups of vertical rods 310 driving the impellers 311 to rotate are opposite, at this time, the electret master batch subjected to the vortex generated by the rapid rotation of the stirring shaft 23 is close to the side of the pipe wall of the machine body 1, the electret master batch is flipped by the two groups of impellers 311, so that the stirring effect is improved, the large gear 38 drives the small gear 39, so that the rotating speeds of the two groups of impellers 311 are different, the two groups of impellers 311 generate different flow fields in the machine body 1, the impeller 311 rotating rapidly can improve strong shear force to disperse the electret master batch and avoid the phenomenon of clumping, and the impeller 311 rotating slowly can generate a relatively mild convection to make the particles circulate and mix in a larger range, so that the mixing effect is further improved.

[0023] The driven part 4 comprises a slide rod 41 slidably installed on the surface of the stirring shaft 23, a top rod 42 fixed on the side of the slide rod 41 away from the main shaft 22, the top rod 42 penetrating through the stirring shaft 23 and being in sliding connection with the stirring shaft 23, a reset spring 43 fixed on the inner wall of the stirring shaft 23, one end of the reset spring 43 away from the stirring shaft 23 being fixed with the top rod 42, a vertical rod 310 penetrating through a cam 44 and being fixed with the cam 44, the surface of the slide rod 41 being fixed with a plug rod 45, the surface of the stirring shaft 23 being hingedly connected with a push rod 46, the side of the push rod 46 close to the slide rod 41 being provided with a square groove 47, one end of the plug rod 45 away from the slide rod 41 being inserted into the square groove 47, when the vertical rod 310 rotates, the vertical rod 310 drives the cam 44 to rotate, when the cam 44 abuts against the top rod 42, the top rod 42 drives the slide rod 41 to move to the side close to the main shaft 22, when the top rod 42 is not abutted, under the action of the reset spring 43, the top rod 42 drives the slide rod 41 to move to the side away from the main shaft 22 to reset, so as to realize the control of the back-and-forth movement of the slide rod 41, in the process of the back-and-forth movement of the slide rod 41, the plug rod 45 inserted into the square groove 47 controls the push rod 46 to swing back and forth at the hinged position with the stirring shaft 23, so as to scatter the electret master batch gathered in the machine body 1, thereby improving the stirring effect.

[0024] The motor 21 is fixed on the top of the machine body 1, the output shaft of the motor 21 penetrating through the top of the machine body 1 and being in rotary connection with the machine body 1, the output shaft of the motor 21 being fixed with the top of the main shaft 22, the side surface of the main shaft 22 being fixed with the stirring shaft 23, the main shaft 22 and the stirring shaft 23 being driven to rotate by the motor 21, so as to realize the stirring and mixing operation of the electret master batch in the machine body 1.

[0025] Based on the above embodiment, the electret master batch is put into the machine body 1 through the feeding port, the motor 21 is started, and the motor 21 drives the main shaft 22 and the stirring shaft 23 to rotate, so as to realize the stirring and mixing operation of the electret master batch in the machine body 1.

[0026] When the main shaft 22 drives the stirring shaft 23 to rotate, the stirring shaft 23 rotates with the rotating rod 34, the rotating rod 34 drives the bevel gear two 33 to rotate around the bevel gear one 32, since the bevel gear one 32 is in a fixed state, and then the bevel gear two 33 can drive the rotating rod 34 to rotate, the connecting block 36 slidingly connected in the reciprocating sliding groove 35 on the surface of the rotating rod 34 can move left and right, the connecting block 36 drives the rack 37 to move left and right, since the pinion 39 is smaller than the gear 38 in size, and then the pinion 39 will not mesh with the rack 37, when the rack 37 moves left and right, the gear 38 can be driven to rotate back and forth, the pinion 39 meshing with the gear 38 is driven to rotate together by the gear 38, but the rotating direction of the pinion 39 is opposite to that of the gear 38, and then the rotating directions of the two groups of vertical rods 310 driving the impellers 311 are opposite, at this time, the electret master batch in the vortex generated by the fast rotating stirring shaft 23 is close to the pipe wall of the machine body 1, the electret master batch is tumbled by the two groups of impellers 311, so that the stirring effect is improved, the gear 38 drives the pinion 39, so that the rotating speeds of the two groups of impellers 311 are different, the two groups of impellers 311 generate different flow fields in the machine body 1, the fast rotating impeller 311 can improve the strong shear force, so that the electret master batch is dispersed, and the phenomenon of agglomeration is avoided, and the slow rotating impeller 311 can generate a relatively mild convection, so that the particles circulate and mix in a larger range, and the mixing effect is further improved.

[0027] When the vertical rod 310 rotates, the vertical rod 310 drives the cam 44 to rotate, when the cam 44 abuts against the jacking rod 42, the jacking rod 42 drives the sliding rod 41 to move to the side close to the main shaft 22, when the jacking rod 42 is not abutted, under the action of the return spring 43, the jacking rod 42 drives the sliding rod 41 to move to the side away from the main shaft 22 to reset, so that the sliding rod 41 is controlled to move back and forth, in the process of moving back and forth, the inserting rod 45 inserted in the square groove 47 controls the lever 46, so that the lever 46 swings back and forth at the hinged position with the stirring shaft 23, the agglomeration of the electret master batch in the machine body 1 is broken, and the stirring effect is improved.

[0028] After the stirring is completed, the electret master batch can be discharged only by opening the discharge port.

[0029] The above is a detailed description of the utility model, but some modifications or improvements can be made on the basis of the utility model, which is obvious to those skilled in the art. Therefore, the modifications or improvements without departing from the spirit of the utility model are within the protection scope of the utility model.

Claims

1. A mixer for electret master batch preparation process, comprising a machine body (1), a feeding port is arranged on the top of the machine body (1), a discharging port is arranged on the bottom of the machine body (1), a mixing structure (2) is arranged on the machine body (1), the mixing structure (2) is composed of a motor (21), a main shaft (22) and a stirring shaft (23), characterized in that: The stirring shaft (23) and the body (1) are provided with a disturbance structure (3) for improving the stirring effect, the stirring shaft (23) is provided with a driven part (4) for matching the disturbance structure (3), the disturbance structure (3) comprises: a fixed rod (31), the bottom of the fixed rod (31) is fixed on the inner wall of the body (1), the fixed rod (31) penetrates the bottom of the main shaft (22) and is rotatably connected with the main shaft (22), the fixed rod (31) penetrates the bevel gear (32) and is fixedly connected with the bevel gear (32), and the bevel gear (32) is engaged with the bevel gear (33).

2. A mixer for use in the preparation of electret masterbatch according to claim 1, characterised in that: The bevel gear (33) is fixed with a rotating rod (34) away from one side of the fixed rod (31), the rotating rod (34) penetrates the main shaft (22) and the stirring shaft (23), and the rotating rod (34) is rotatably connected with the main shaft (22) and the stirring shaft (23), the surface of the rotating rod (34) is provided with a reciprocating sliding groove (35), the connecting block (36) is slidably installed in the reciprocating sliding groove (35) of the surface of the rotating rod (34), the connecting block (36) is slidably installed on the inner wall of the stirring shaft (23), and the connecting block (36) is fixed with a rack (37) away from one side of the main shaft (22).

3. A mixer for use in the preparation of electret masterbatch according to claim 2, characterised in that: The rack (37) is engaged with the large gear (38), the large gear (38) is engaged with the small gear (39), the large gear (38) and the small gear (39) are penetrated by two groups of vertical rods (310), and the two groups of vertical rods (310) are fixed with the large gear (38) and the small gear (39) respectively, the two groups of vertical rods (310) penetrate the stirring shaft (23) and are rotatably connected with the stirring shaft (23), and the two groups of vertical rods (310) penetrate the two groups of impellers (311) and are fixedly connected.

4. A mixer for use in the production of electret masterbatch according to claim 3, characterised in that: The driven part (4) comprises a sliding rod (41) slidably installed on the surface of the stirring shaft (23), a top rod (42) fixed on one side of the sliding rod (41) away from the main shaft (22), the top rod (42) penetrates the stirring shaft (23) and is slidably connected with the stirring shaft (23), and a return spring (43) is fixed on the inner wall of the stirring shaft (23).

5. A mixer for use in the production of electret masterbatch according to claim 4, characterised in that: One end of the return spring (43) away from the stirring shaft (23) is fixed with the top rod (42), the vertical rod (310) penetrates the cam (44) and is fixed with the cam (44), the surface of the sliding rod (41) is fixed with a plug rod (45), the surface of the stirring shaft (23) is hinged with a push rod (46), one side of the push rod (46) close to the sliding rod (41) is provided with a square groove (47), and one end of the plug rod (45) away from the sliding rod (41) is inserted into the square groove (47).

6. A mixer for use in the preparation of electret masterbatch according to claim 1, characterised in that: The motor (21) is fixed on the top of the body (1), the output shaft of the motor (21) penetrates the top of the body (1) and is rotatably connected with the body (1), the output shaft of the motor (21) is fixed on the top of the main shaft (22), and the main shaft (22) is fixed with the stirring shaft (23) on the side.

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