An improved mixer

Abstract

The present invention relates to the technical field of material mixing, and in particular to an improved mixer, comprising a base, a mixing barrel, a support column and a driving mechanism. The two mixing barrels designed in the present invention cooperate with each other to extend the mixing path of traditional Chinese medicine. The two mixing barrels are distributed up and down to reduce the horizontal floor space of the mixing barrel and improve the utilization rate of the site. A leakage trough is provided on the right support column to allow the traditional Chinese medicine inside the upper mixing barrel to fall into the lower mixing barrel. The traditional Chinese medicine can change direction during the process of falling from the leakage trough, thereby causing the traditional Chinese medicine inside the upper mixing barrel to be disrupted and mixed in the vertical direction, thereby improving the uniformity of the traditional Chinese medicine during the mixing process.

Description

Technical Field

[0001] The present invention relates to the technical field of material mixing, in particular to an improved mixer. Background Art

[0002] Patients with some chronic diseases (such as hepatitis, chronic gastritis, etc.) need to take medications for a long time to control the further development of the disease. Since Western medicines are more harmful to the patient's stomach, some chronic disease patients often take traditional Chinese medicine to control the development of the disease. In order to ensure the convenience of patients taking medicines each time, some Chinese medicine stores often weigh and package the Chinese medicines in advance. Since more than one kind of Chinese medicine may be taken according to the needs of the disease, the Chinese medicines are mixed by drug mixing equipment before packaging.

[0003] In order to increase the uniformity of Chinese medicine mixing, traditional medicine mixing equipment often uses longer pipes and stirring blades inside the pipes to mix and stir the Chinese medicine. Due to the long pipes, the medicine mixing equipment occupies too large an area, affecting land utilization.

[0004] Since the traditional medicine mixing equipment drives the Chinese medicine stirring direction and the force direction to remain unchanged, the Chinese medicine may remain relatively stationary along the moving direction of the Chinese medicine and the stirring shaft during the mixing process, so the Chinese medicine stirring uniformity is poor, which in turn causes the Chinese medicine internal components to have poor uniformity after packaging, resulting in different efficacy of each package of Chinese medicine, affecting the therapeutic effect of the Chinese medicine. Summary of the Invention

[0005] In order to solve the above problems, the present invention adopts the following technical solution: an improved mixer, including a base, above which are arranged upper and lower symmetrical mixing cylinders, the two mixing cylinders are connected to each other through left and right symmetrical support columns, and a leakage trough is provided inside the right support column, which is connected to the upper and lower mixing cylinders.

[0006] The two mixing drums are respectively provided with stirring shafts extending left and right, and sliding blocks are installed on the left and right sides of the stirring shafts through bearings. The left and right sides of the stirring shafts are slidably arranged on the left and right side walls of the mixing drum through the sliding blocks. The circumferential surfaces of the stirring shafts are respectively provided with spiral blades distributed along their axial directions, and a driving mechanism that cooperates with the two stirring shafts is installed on the right side of the upper end surface of the base.

[0007] The driving mechanism includes a mobile frame with an L-shaped structure that is symmetrical front and back, and two vertical sections of the mobile frame are slidably arranged on the upper end surface of the base, a driving box is installed between the opposite surfaces of the horizontal sections of the two mobile frames, and the upper and lower stirring shafts pass through the driving box and are installed on the left side wall of the driving box through bearings, a supporting frame is installed between the vertical sections of the two mobile frames, a rotating motor is installed on the upper end surface of the supporting frame through a motor seat, a rotating shaft is installed on the upper end surface of the driving box through a bearing, the lower end of the rotating shaft is fixedly connected to the output shaft of the rotating motor, and the part of the rotating shaft located in the driving box is equipped with a No. 1 bevel gear corresponding to the stirring shaft one by one.

[0008] The lower stirring shaft is equipped with a No. 2 bevel gear meshing with the No. 1 bevel gear below. A reversing shaft is installed on the left inner wall of the drive box and between the upper stirring shaft and the No. 1 bevel gear above. The reversing shaft is equipped with a No. 2 bevel gear meshing with the No. 1 bevel gear above. The reversing shaft and the upper stirring shaft are jointly equipped with reversing gears meshing with each other. A stirring part is installed between the drive box and the support column on the right.

[0009] Preferably, the stirring part includes a support frame fixedly mounted inside the leakage trough, a rotating rod extending up and down is mounted on the support frame through a bearing, a plurality of groups of stirring rods are arranged on the circumferential surface of the rotating rod from top to bottom, each group of stirring rods is evenly arranged on the circumferential surface of the rotating rod, pulleys are respectively mounted on the rotating rod and the rotating shaft, a belt is arranged between the drive box and the support column on the right side, the left and right sides of the belt pass through the support column on the right side and the drive box respectively and are mounted on the left and right pulleys, a tensioning spring rod is installed on the rear side wall of the drive box, a fixed pulley is rotatably mounted on the front end of the tensioning spring rod, and the rear belt passes through the fixed pulley and rests on the rear side of the fixed pulley.

[0010] Preferably, the mixing drum on the lower side is installed on the upper end surface of the base through left-right symmetrical support rods, a funnel connected to the upper end surface of the mixing drum on the upper side is installed on the left side, a discharge port is opened on the left side of the lower end surface of the mixing drum on the lower side, and a collection frame is slidingly provided on the upper end surface of the base and below the discharge port.

[0011] Preferably, the part of the rotating shaft located outside the drive box is equipped with a rotating block, an inclined surface is provided on the right side of the front end surface of the rotating block, an adjusting connecting rod is fixedly installed on the upper end surface of the base and on the left and right sides of the supporting frame, a connecting protrusion is provided on the lower end surface of the right side of the mixing barrel below, and a reset spring rod is installed between the connecting protrusion and the drive box.

[0012] Preferably, a material guide box is installed on the right side of the lower end surface of the mixing cylinder mentioned above and on the right side of the right support column, and a material guide pipe is provided between the lower end of the material guide box and the mixing cylinder mentioned below. The upper end of the material guide pipe is connected with the material guide box, and the lower end of the material guide pipe is connected with the mixing cylinder below.

[0013] Preferably, a T-shaped connecting frame is installed on the opposite sides of the two stirring shafts and between the spiral blades. A plurality of stirring claws are installed in sequence from left to right on the side of the horizontal section of the connecting frame away from the stirring shaft. During the rotation of the stirring shaft, the stirring claws are driven to rotate circumferentially through the connecting frame. During the rotation of the stirring claws, the Chinese medicine can be turned over, so that the stirring claws can turn over and mix the Chinese medicine, thereby improving the uniformity of the Chinese medicine during the mixing process.

[0014] Preferably, the circumferential surface of the sliding block is provided with upper and lower symmetrical limiting protrusions, which can limit the sliding block and increase the stability of the sliding block during the left and right reciprocating sliding process.

[0015] Preferably, the spiral blades fit into the inner wall of the mixing barrel to prevent the Chinese medicine from remaining between the inner wall of the mixing barrel and the spiral blades during the moving mixing process, thereby reducing the accumulation of Chinese medicine residues in the inner wall of the mixing barrel.

[0016] The beneficial effects of the present invention are: 1. The two mixing barrels designed in the present invention cooperate with each other to extend the mixing path of the traditional Chinese medicine. The two mixing barrels are distributed up and down to reduce the horizontal footprint of the mixing barrel and improve the utilization rate of the site. A leakage trough is provided on the right support column to allow the traditional Chinese medicine inside the upper mixing barrel to fall into the lower mixing barrel. The traditional Chinese medicine can change direction during the process of falling from the leakage trough, thereby disrupting the mixing of the traditional Chinese medicine inside the upper mixing barrel in the vertical direction, thereby improving the uniformity of the traditional Chinese medicine during the mixing process.

[0017] 2. The rotating shaft designed in the present invention can drive the drive box to move back and forth left and right through the cooperation between the inclined surface on the rotating block and the adjusting connecting rod during the rotation process. During the reciprocating movement of the drive box, the sliding block and the return spring rod cooperate with each other to drive the stirring shaft to move back and forth left and right, and then the spiral blades can drive the traditional Chinese medicine inside the mixing barrel to be flipped back and forth left and right, thereby further improving the uniformity of the traditional Chinese medicine mixing process.

[0018] 3. When the herbs inside the upper mixing barrel cannot be leaked out of the leakage trough in time, the Chinese medicine inside the upper mixing barrel continues to move to the right. When the Chinese medicine moves to the upper side of the guide box, the guide box and the guide pipe designed in the present invention cooperate with each other to guide the excess Chinese medicine, so that the excess Chinese medicine passes through the guide box and the guide pipe and enters the interior of the lower mixing barrel, avoiding clogging of the Chinese medicine inside the upper mixing barrel. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The present invention will be further described below with reference to the accompanying drawings and examples.

[0020] Figure 1 It is a schematic diagram of the first three-dimensional structure of the present invention.

[0021] Figure 2It is a schematic diagram of the first three-dimensional structure of the present invention.

[0022] Figure 3 This invention Figure 1 A partial enlarged view of point A.

[0023] Figure 4 Schematic diagram of the internal structure of the mixing barrel of the present invention (viewed from front to back).

[0024] Figure 5 It is a schematic diagram of the three-dimensional installation structure between the stirring shaft and the spiral blades of the present invention.

[0025] Figure 6 It is the front view of the present invention.

[0026] Figure 7 This invention Figure 6 A partial enlarged view of point B.

[0027] Figure 8 It is a schematic diagram of the three-dimensional installation structure between the rotating rod, the supporting frame and the stirring rod of the present invention.

[0028] Figure 9 It is a schematic diagram of the internal structure of the drive chassis of the present invention.

[0029] Figure 10 This invention Figure 9 A partial enlarged view of point D.

[0030] Figure 11 This invention Figure 9 Partial cross-sectional view at CC.

[0031] In the figure: 1, base; 2, mixing drum; 21, stirring shaft; 211, connecting frame; 212, stirring claw; 22, sliding block; 221, limiting protrusion; 23, spiral blade; 25, support rod; 26, funnel; 27, discharge port; 28, collecting frame; 29, material guide box; 20, material guide pipe; 3, support column; 31, leakage chute; 4, driving mechanism; 41, moving frame; 42, driving box; 43, supporting frame; 4 4. Rotating motor; 45. Rotating shaft; 451. Rotating block; 452. Adjusting connecting rod; 453. Connecting protrusion; 454. Return spring rod; 46. Bevel gear No. 1; 47. Bevel gear No. 2; 48. Reversing shaft; 49. Stirring part; 491. Support frame; 492. Rotating rod; 493. Stirring rod; 494. Pulley; 496. Belt; 497. Tensioning spring rod; 498. Fixed pulley; 40. Reversing gear. DETAILED DESCRIPTION

[0032] The embodiments of the present invention are described in detail below with reference to the accompanying drawings. However, the present invention can be implemented in many different ways as defined and covered by the claims.

[0033] See Figure 1 as well as Figure 4 An improved mixer includes a base 1, above which are arranged upper and lower symmetrical mixing drums 2, the two mixing drums 2 being connected to each other through left-right symmetrical support columns 3, and a leakage trough 31 communicating with the upper and lower mixing drums 2 is provided inside the right support column 3.

[0034] See Figure 2 、 Figure 4 as well as Figure 5 The two mixing drums 2 are respectively provided with stirring shafts 21 extending left and right, and sliding blocks 22 are installed on the left and right sides of the stirring shafts 21 through bearings. The left and right sides of the stirring shafts 21 are slidably arranged on the left and right side walls of the mixing drum 2 through the sliding blocks 22. The circumferential surface of the stirring shaft 21 is provided with spiral blades 23 distributed along its axial direction. A driving mechanism 4 that cooperates with the two stirring shafts 21 is installed on the right side of the upper end surface of the base 1.

[0035] See Figure 5 The sliding block 22 is provided with upper and lower symmetrical limiting protrusions 221 on its circumferential surface. The limiting protrusions 221 can limit the sliding block 22 and increase the stability of the sliding block 22 during the left and right reciprocating sliding process.

[0036] See Figure 4 The spiral blades 23 fit together with the inner wall of the mixing barrel 2 to prevent the Chinese medicine from remaining between the inner wall of the mixing barrel 2 and the spiral blades 23 during the moving and mixing process, thereby reducing the accumulation of Chinese medicine residues in the inner wall of the mixing barrel 2.

[0037] See Figure 4 as well as Figure 6 The mixing drum 2 on the lower side is installed on the upper end surface of the base 1 through a left-right symmetrical support rod 25. A funnel 26 is installed on the left side of the upper end surface of the mixing drum 2 on the upper side, and a discharge port 27 is opened on the left side of the lower end surface of the mixing drum 2 on the lower side. A collecting frame 28 is slidingly provided on the upper end surface of the base 1 and below the discharge port 27.

[0038] See Figure 3 as well as Figure 9The driving mechanism 4 includes a mobile frame 41 with a front-to-back symmetrical L-shaped structure. The two vertical sections of the mobile frame 41 are slidably arranged on the upper end surface of the base 1. A driving box 42 is installed between the opposite surfaces of the horizontal sections of the two mobile frames 41, and the upper and lower stirring shafts 21 pass through the driving box 42 and are installed on the left side wall of the driving box 42 through bearings. A supporting frame 43 is installed between the vertical sections of the two mobile frames 41. A rotating motor 44 is installed on the upper end surface of the supporting frame 43 through a motor seat. A rotating shaft 45 is installed on the upper end surface of the inside of the driving box 42 through a bearing. The lower end of the rotating shaft 45 is fixedly connected to the output shaft of the rotating motor 44. The part of the rotating shaft 45 located in the driving box 42 is equipped with a No. 1 bevel gear 46 corresponding to the stirring shaft 21.

[0039] See Figure 9 as well as Figure 11 A second bevel gear 47 meshing with the first bevel gear 46 below is installed on the lower stirring shaft 21, and a reversing shaft 48 is installed through a bearing on the left inner wall of the drive box 42 and between the upper stirring shaft 21 and the upper first bevel gear 46. The reversing shaft 48 is equipped with a second bevel gear 47 meshing with the upper first bevel gear 46. The reversing shaft 48 and the upper stirring shaft 21 are jointly equipped with a reversing gear 40 that meshes with each other. A stirring part 49 is installed between the drive box 42 and the right support column 3.

[0040] See Figure 7 、 Figure 8 as well as Figure 10 The stirring part 49 includes a support frame 491 fixedly mounted inside the leakage trough 31, and a rotating rod 492 extending up and down is mounted on the support frame 491 through a bearing. A plurality of groups of stirring rods 493 are arranged on the circumferential surface of the rotating rod 492 from top to bottom, and each group of stirring rods 493 is evenly arranged on the circumferential surface of the rotating rod 492. Pulleys 494 are respectively mounted on the rotating rod 492 and the rotating shaft 45. A belt 496 is arranged between the drive box 42 and the support column 3 on the right side. The left and right sides of the belt 496 pass through the support column 3 on the right side and the drive box 42 respectively and are mounted on the left and right pulleys 494. A tensioning spring rod 497 is installed on the rear side wall of the drive box 42, and a fixed pulley 498 is rotatably mounted on the front end of the tensioning spring rod 497. The rear belt 496 passes through the fixed pulley 498 and is attached to the rear side of the fixed pulley 498.

[0041] During the specific operation, the Chinese medicine to be mixed is poured into the interior of the upper mixing drum 2 through the funnel 26, and the rotating motor 44 is started to drive the No. 1 bevel gear 46 to rotate through the rotating shaft 45. During the rotation of the No. 1 bevel gear 46, the No. 2 bevel gear 47 drives the reversing shaft 48 to rotate. During the rotation of the reversing shaft 48, the upper stirring shaft 21 is driven to rotate through the reversing gear 40. During the rotation of the upper stirring shaft 21, the Chinese medicine is driven to move right through the spiral blade 23. During the rightward movement of the Chinese medicine, the spiral blade 23 synchronously flips it. The Chinese medicine can be mixed during the flipping process to ensure To ensure the uniformity of the mixing of traditional Chinese medicine, when the traditional Chinese medicine moves to the right side of the upper mixing drum 2, the traditional Chinese medicine falls into the lower mixing drum 2 through the leakage trough 31. During this process, the rotating shaft 45 cooperates with the pulley 494 and the belt 496 to drive the rotating rod 492 to rotate. During the rotation of the rotating rod 492, the stirring rod 493 is driven to stir and mix the fallen traditional Chinese medicine, so that the traditional Chinese medicine is stirred more fully and the uniformity of the distribution of the traditional Chinese medicine is further improved. Since the drive box 42 will move back and forth left and right during operation, the tensioning spring rod 497 and the fixed pulley 498 cooperate with each other to ensure that the belt 496 is always in a taut state.

[0042] See Figure 3 The rotating shaft 45 is located on the outside of the driving box 42 and is equipped with a rotating block 451. The right side of the front end surface of the rotating block 451 is provided with an inclined surface. The upper end surface of the base 1 and the left and right sides of the supporting frame 43 are fixedly installed with an adjusting link 452. The lower end surface of the right side of the mixing drum 2 below is provided with a connecting protrusion 453. A return spring rod 454 is installed between the connecting protrusion 453 and the driving box 42. During the rotation process, the rotating shaft 45 can drive the driving box 42 to move back and forth left and right through the cooperation between the inclined surface on the rotating block 451 and the adjusting link 452. During the reciprocating movement of the driving box 42, the sliding block 22 and the return spring rod 454 cooperate with each other to drive the stirring shaft 21 to move back and forth left and right, and then the spiral blade 23 can drive the Chinese medicine inside the mixing drum 2 to perform reciprocating flipping processing left and right, further improving the uniformity of the Chinese medicine mixing process, wherein the return spring rod 454 can reset the driving box 42.

[0043] When the Chinese medicine falls into the mixing drum 2 below, the No. 1 bevel gear 46 synchronously drives the stirring shaft 21 below to rotate through the No. 2 bevel gear 47 below, wherein the upper stirring shaft 21 rotates in opposite directions to the lower stirring shaft 21, and then the lower stirring shaft 21 cooperates with the spiral blade 23 to drive the Chinese medicine to move left. During the process of the Chinese medicine moving left, the spiral blade 23 synchronously flips and mixes it. The Chinese medicine can change direction when it falls through the leakage trough 31, so that the Chinese medicine inside the upper mixing drum 2 is cross-mixed in the vertical direction, thereby improving the uniformity of the Chinese medicine during the mixing process. When the Chinese medicine moves to the left side of the lower mixing drum 2, the Chinese medicine falls into the collection frame 28 through the discharge port 27.

[0044] See Figure 2 , a material guide box 29 is installed on the right side of the lower end face of the mixing cylinder 2 above and on the right side of the right support column 3, and a material guide box 29 is installed between the lower end of the material guide box 29 and the mixing cylinder 2 below. The upper end of the material guide tube 20 is connected with the material guide box 29, and the lower end of the material guide tube 20 is connected with the mixing cylinder 2 below. When the herbs inside the upper mixing cylinder 2 cannot leak out from the leakage groove 31 in time, the Chinese medicine inside the upper mixing cylinder 2 continues to move to the right. When the Chinese medicine moves to the upper side of the material guide box 29, the material guide box 29 and the material guide tube 20 designed by the present invention cooperate with each other to guide the excess Chinese medicine, so that the excess Chinese medicine passes through the material guide box 29 and the material guide tube 20 and enters the interior of the mixing cylinder 2 below, avoiding the blockage of the Chinese medicine inside the upper mixing cylinder 2.

[0045] See Figure 5 A T-shaped connecting frame 211 is installed on the opposite sides of the two stirring shafts 21 and between the spiral blades 23. A plurality of stirring claws 212 are installed in sequence from left to right on the side of the horizontal section of the connecting frame 211 away from the stirring shafts 21. During the rotation of the stirring shafts 21, the connecting frame 211 drives the stirring claws 212 to rotate circumferentially. During the rotation of the stirring claws 212, the stirring claws 212 can stir the Chinese medicine, thereby stirring and mixing the Chinese medicine, thereby improving the uniformity of the Chinese medicine during the mixing process.

[0046] The improved mixer mentioned above is used in the process of mixing Chinese medicine, including the following steps: the first step, initial delivery and mixing: the Chinese medicine to be mixed is poured into the upper mixing drum 2 through the funnel 26, the rotating motor 44 is started and drives the No. 1 bevel gear 46 to rotate through the rotating shaft 45, wherein the upper No. 1 bevel gear 46 rotates and the upper No. 2 bevel gear 47 drives the reversing shaft 48 to rotate during the rotation of the reversing shaft 48, and the upper stirring shaft 21 is driven to rotate through the reversing gear 40 during the rotation of the reversing shaft 48, and the upper stirring shaft 21 is driven to move right through the spiral blade 23 during the rotation of the Chinese medicine. During the rightward movement of the Chinese medicine, the spiral blade 23 synchronously flips it, and the Chinese medicine can be mixed during the flipping process.

[0047] Step 2: stirring: When the Chinese medicine moves to the right side of the upper mixing drum 2, it falls through the leakage chute 31 to the lower mixing drum 2. During this process, the rotating shaft 45 drives the rotating rod 492 to rotate through the pulley 494 and the belt 496. During the rotation of the rotating rod 492, the stirring rod 493 is driven to stir and mix the fallen Chinese medicine.

[0048] Step 3: Secondary conveying and mixing: When the Chinese medicine falls into the mixing drum 2 below, the No. 1 bevel gear 46 synchronously drives the stirring shaft 21 below to rotate through the No. 2 bevel gear 47 below. The upper stirring shaft 21 rotates in opposite directions to the lower stirring shaft 21, and the lower stirring shaft 21 cooperates with the spiral blade 23 to drive the Chinese medicine to move left. During the movement of the Chinese medicine to the left, the spiral blade 23 synchronously flips and mixes it.

[0049] Step 4: Collection and processing: When the Chinese medicine moves to the left side of the mixing barrel 2 below, the Chinese medicine falls into the collection frame 28 through the discharge port 27.

[0050] The foregoing description is merely a preferred embodiment of the present invention and is not intended to limit the present invention. Those skilled in the art will readily appreciate that various modifications and variations of the present invention are possible. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of the present invention are intended to be within the scope of protection of the present invention.

Claims

1. An improved mixer, comprising a base (1), characterized in that: A mixing drum (2) symmetrical in upper and lower directions is provided above the base (1), and the two mixing drums (2) are connected to each other via a left-right symmetrical support column (3), and a material leakage trough (31) is provided inside the right support column (3) and is connected to the upper and lower mixing drums (2), wherein; The two mixing drums (2) are respectively provided with stirring shafts (21) extending left and right, and sliding blocks (22) are installed on the left and right sides of the stirring shafts (21) through bearings. The stirring shafts (21) are slidingly arranged on the left and right side walls of the mixing drum (2) through the sliding blocks (22). The circumferential surfaces of the stirring shafts (21) are respectively provided with spiral blades (23) distributed along the axial direction thereof. A driving mechanism (4) that cooperates with the two stirring shafts (21) is installed on the right side of the upper end surface of the base (1); The driving mechanism (4) comprises a front-to-back symmetrical L-shaped moving frame (41), two vertical sections of the moving frames (41) are slidably arranged on the upper end surface of the base (1), a driving box (42) is installed between the opposite surfaces of the horizontal sections of the two moving frames (41), the driving box (42) reciprocates left and right and drives the stirring shaft (21) to reciprocate left and right, and the upper and lower stirring shafts (21) pass through the driving box (42) and are installed on the left side wall of the driving box (42) through bearings, a supporting frame (43) is installed between the vertical sections of the two moving frames (41), a rotating motor (44) is installed on the upper end surface of the supporting frame (43) through a motor seat, a rotating shaft (45) is installed on the upper end surface of the driving box (42) through a bearing, the lower end of the rotating shaft (45) is fixedly connected to the output shaft of the rotating motor (44), and the part of the rotating shaft (45) located in the driving box (42) is installed with a No. 1 bevel gear (46) corresponding to the stirring shaft (21); The stirring shaft (21) below is provided with a second bevel gear (47) meshing with the first bevel gear (46) below. A reversing shaft (48) is provided on the left inner wall of the driving box (42) and between the stirring shaft (21) above and the first bevel gear (46) above via a bearing. The reversing shaft (48) is provided with a second bevel gear (47) meshing with the first bevel gear (46) above. The reversing shaft (48) and the stirring shaft (21) above are provided with a reversing gear (40) meshing with each other. A stirring portion (49) is provided between the driving box (42) and the right support column (3). The stirring part (49) includes a support frame (491) fixedly mounted inside the leakage trough (31), a rotating rod (492) extending up and down is mounted on the support frame (491) through a bearing, and pulleys (494) are respectively mounted on the rotating rod (492) and the rotating shaft (45), and the left and right sides of the belt (496) pass through the right support column (3) and the drive box (42) and are mounted on the left and right pulleys (494), a tensioning spring rod (497) is mounted on the rear side wall of the drive box (42), and a fixed pulley (498) is rotatably mounted on the front end of the tensioning spring rod (497), and the rear belt (496) passes through the fixed pulley (498) and is attached to the rear side of the fixed pulley (498).

2. An improved mixer according to claim 1, characterized in that: The circumferential surface of the rotating rod (492) is provided with a plurality of groups of stirring rods (493) from top to bottom, and each group of stirring rods (493) is evenly installed on the circumferential surface of the rotating rod (492); a belt (496) is provided between the driving box (42) and the right support column (3).

3. An improved mixer according to claim 1, characterized in that: The mixing drum (2) on the lower side is mounted on the upper end face of the base (1) via a left-right symmetrical support rod (25); a funnel (26) is mounted on the left side of the upper end face of the mixing drum (2) on the upper side and is in communication with the mixing drum (2); a discharge port (27) is provided on the left side of the lower end face of the mixing drum (2) on the lower side; and a collecting frame (28) is slidably mounted on the upper end face of the base (1) and below the discharge port (27).

4. An improved mixer according to claim 1, characterized in that: The portion of the rotating shaft (45) located outside the driving box (42) is equipped with a rotating block (451), and an inclined surface is provided on the right side of the front end surface of the rotating block (451). An adjusting connecting rod (452) is fixedly installed on the upper end surface of the base (1) and on the left and right sides of the supporting frame (43). A connecting protrusion (453) is provided on the lower end surface of the right side of the mixing barrel (2) below. A return spring rod (454) is installed between the connecting protrusion (453) and the driving box (42).

5. An improved mixer according to claim 1, characterized in that: A material guide box (29) is installed on the right side of the lower end surface of the mixing cylinder (2) above and on the right side of the right support column (3). A material guide pipe (20) is provided between the lower end of the material guide box (29) and the mixing cylinder (2) below. The upper end of the material guide pipe (20) is connected to the material guide box (29) through the upper end, and the lower end of the material guide pipe (20) is connected to the mixing cylinder (2) below.

6. An improved mixer according to claim 1, characterized in that: A T-shaped connecting frame (211) is installed on the opposite sides of the two stirring shafts (21) and between the spiral blades (23). A plurality of stirring claws (212) are installed sequentially from left to right on the side of the horizontal section of the connecting frame (211) away from the stirring shaft (21).

7. An improved mixer according to claim 1, characterized in that: The sliding block (22) is provided with upper and lower symmetrical limiting protrusions (221) on its circumferential surface.

8. An improved mixer according to claim 1, characterized in that: The spiral blades (23) are in contact with the inner wall of the mixing cylinder (2).

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