Multi-stage annular shearing machine

Abstract

The utility model discloses a multistage annular shearing machine and belongs to the field of shearing equipment. The feeding bin is connected with the upper end of the shell; the discharge hole is connected with the front end of the shell; a driving assembly; the movable cutters are connected with a driving shaft of the driving assembly, blades of the movable cutters are provided with lead angles so that the movable cutters can be combined into a spiral feeding channel, and the blades of the movable cutters are located in the shell; the plurality of fixed cutters are connected in the shell and are correspondingly matched between the blades of the adjacent movable cutters; and the screen assembly is connected to the interior of the front end of the shell. The utility model has the technical effects that not only is the shearing efficiency high, but also the particle size is not easily controlled by the size of screen meshes.

Description

Technical Field

[0001] This utility model relates to shearing equipment, and more particularly to a multi-stage annular shearing machine. Background Technology

[0002] Shearing equipment is used to cut waste materials into granules. It is widely used in the material recycling industry. It is generally a single-shaft or double-shaft type, and the material is fed from the top and discharged from the bottom. This means that the material can only be sheared between the same set of moving and stationary blades. If a very fine shearing is required, a long time needs to be spent between the same set of moving and stationary blades, which easily leads to low shearing efficiency. Moreover, when the particle size is reduced to a certain extent, the particles can easily pass through the screen holes under the action of gravity, which easily makes the particle size controllable by the size of the screen holes. Utility Model Content

[0003] Purpose of the utility model: The purpose of this utility model is to provide a multi-stage annular shearing machine, which not only has high shearing efficiency, but also makes the particle size less susceptible to control by the size of the screen opening.

[0004] Technical solution: A multi-stage annular shearing machine, comprising:

[0005] case;

[0006] A feed hopper connected to the upper end of the housing;

[0007] The discharge port is connected to the front end of the housing;

[0008] Driver components;

[0009] A plurality of movable blades are connected to the drive shaft of the drive assembly. The blades of the plurality of movable blades are provided with a helical helix angle so that the plurality of movable blades are combined to form a helical feeding channel. The blades of the plurality of movable blades are all located inside the housing.

[0010] A plurality of fixed blades are connected within the housing, and the plurality of fixed blades are correspondingly fitted between the blades of adjacent moving blades;

[0011] A screen assembly connected to the front end of the housing.

[0012] Optionally, the moving blade includes:

[0013] A fixing part that is sleeved onto the drive shaft of the drive assembly;

[0014] A plurality of blades connected to the outside of the fixing part;

[0015] A groove formed between adjacent blades;

[0016] The grooves of the plurality of moving blades are combined to form the spiral feeding channel, and the fixing part is located inside the housing.

[0017] Optionally, the moving blade further includes an extension portion sleeved on the drive shaft of the drive assembly. One end of the extension portion is connected to the fixed portion, and the other end of the extension portion abuts against the fixed portion of the adjacent moving blade. The extension portion and the fixed blade are correspondingly arranged, and the extension portion is located inside the housing.

[0018] Optional, also includes:

[0019] A plurality of first friction teeth are provided on the blade of the moving knife;

[0020] A plurality of second friction teeth are provided on the fixed cutter;

[0021] Wherein, the first friction tooth and the second friction tooth abut against each other, or the first friction tooth abuts against the fixed blade, or the blade of the moving blade abuts against the second friction tooth.

[0022] Optionally, the screen assembly includes:

[0023] Washers spaced apart and fitted onto the drive shaft of the drive assembly;

[0024] A fixed screen is fitted over the gasket and connected to the inside of the front end of the housing;

[0025] A plurality of first screen holes are provided in the fixed screen.

[0026] Optionally, the screen assembly further includes:

[0027] An adjustable screen is rotatably fitted around the washer, and the adjustable screen is rotatably connected to the inside of the front end of the housing;

[0028] A plurality of second screen openings are provided in the adjustable screen.

[0029] Optionally, it also includes a discharge blade sleeved outside the drive shaft of the drive assembly. The discharge blade is located inside the front end of the housing, and the discharge blade and the screen assembly abut against the side away from the moving blade and the fixed blade.

[0030] Optionally, it also includes a cap sleeved around the drive shaft of the drive assembly, the cap abutting against the side of the unloading knife away from the screen assembly.

[0031] Optionally, the drive assembly includes a motor, a reducer, and a spindle. The output shaft of the motor is connected to the input shaft of the reducer, the output shaft of the reducer is connected to the spindle, and the plurality of moving tools are all connected to the spindle. The output shaft of the reducer is configured as the drive shaft of the drive assembly.

[0032] Optionally, it also includes a base, to which both the drive assembly and the housing are connected.

[0033] Beneficial effects:

[0034] 1) Several moving blades are used in conjunction with several fixed blades to shear the material. The spiral feeding channel allows the material to move forward while being sheared, preventing the material from being sheared only between the same set of moving blades and fixed blades. This makes it easier for the material to occupy a shorter time between the same set of moving blades and fixed blades, thus resulting in high shearing efficiency.

[0035] 2) The screen assembly is used to screen out particles. Since the screen assembly is located inside the front end of the shell, the material will only pass through the screen assembly in the form of particles after being sheared and conveyed for a preset distance. That is, the material will not pass through the screen assembly in the form of particles quickly, which makes it easier to make the particle size less susceptible to control by the size of the screen hole of the screen assembly.

[0036] 3) The discharge port is located at the front end of the shell, that is, the feed hopper and the discharge port are located at the two non-corresponding ends of the shell, which makes it easier to reduce the height of the multi-stage ring shear machine of this application;

[0037] 4) The first and second friction teeth are used to increase the friction of the material during shearing, which facilitates the heating of the material and thus makes the shearing effect of the material better. Attached Figure Description

[0038] Figure 1 This is a schematic diagram of the structure of a multi-stage annular shearing machine according to Embodiment 1 of this utility model;

[0039] Figure 2 This is a partial cross-sectional view of a multi-stage annular shearing machine according to Embodiment 1 of this utility model;

[0040] Figure 3 for Figure 2 A partial view of A in the middle;

[0041] Figure 4 for Figure 2 A partial view of B in the middle;

[0042] Figure 5 This is a schematic diagram of the moving blade in Embodiment 1 of this utility model;

[0043] In the diagram: 1. Housing; 11. Upper housing; 12. Lower housing; 2. Feed hopper; 3. Discharge port; 4. Drive assembly; 41. Motor; 42. Reducer; 43. Main shaft; 5. Moving blade; 51. Fixed part; 52. Blade; 53. Blade groove; 54. Extension part; 55. First friction tooth; 6. Fixed blade; 61. Second friction tooth; 7. Screen assembly; 71. Washer; 72. Fixed screen; 721. First screen hole; 73. Adjustable screen; 731. Second screen hole; 81. Unloading blade; 82. Cap; 9. Machine base. Detailed Implementation

[0044] To make the technical solution of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0045] Example 1

[0046] like Figure 1-5 This embodiment provides a multi-stage annular shearing machine, including: a housing 1; a feed hopper 2 connected to the upper end of the housing 1; a discharge port 3 connected to the front end of the housing 1; a drive assembly 4; a plurality of movable blades 5, each connected to a drive shaft of the drive assembly 4, wherein the blades 52 of the movable blades 5 are provided with a helical rise angle so that the movable blades 5 are combined to form a helical feeding channel, and the blades 52 of the movable blades 5 are all located inside the housing 1; a plurality of fixed blades 6 connected inside the housing 1, wherein the fixed blades 6 are correspondingly matched between the blades 52 of adjacent movable blades 5; and a screen assembly 7 connected inside the front end of the housing 1.

[0047] Specifically, during operation, firstly, materials such as cotton and polyester enter the housing 1 from the feed hopper 2; then, the drive shaft of the drive assembly 4 drives several moving blades 5 to rotate, and the moving blades 5, together with several fixed blades 6, are used to shear the materials. The spiral feeding channel allows the materials to move forward while being sheared, preventing the materials from being sheared only between the same set of moving blades 5 and fixed blades 6, so that the materials occupy a shorter time between the same set of moving blades 5 and fixed blades 6, thereby making the shearing efficiency high; finally, the sheared particles are discharged from the housing 1 through the screen assembly 7 and the discharge port 3 in sequence.

[0048] The housing 1 is used to contain materials. To facilitate the installation and debugging of the moving blades 5 and fixed blades 6 inside the housing 1, the housing 1 includes an upper housing 11 and a lower housing 12 that are detachably connected to each other. The feed hopper 2 is used for feeding materials into the housing 1, and the discharge port 3 is used for discharging materials out of the housing 1. Since the feed hopper 2 is located at the upper end of the housing 1 and the discharge port 3 is located at the front end of the housing 1, that is, the feed hopper 2 and the discharge port 3 are located at the non-corresponding ends of the housing 1, it is convenient to reduce the height of the multi-stage annular shear of this application. The drive assembly 4 is used to drive several moving blades 5 to rotate. The drive assembly 4 may specifically include a motor 41, a reducer 42, etc. The several moving blades 5 and several fixed blades 6 are used together to form a multi-stage annular shearing, which facilitates the shearing of materials into particles. The screen assembly 7 is used to screen out particles. Since the screen assembly 7 is located inside the front end of the housing 1, the material will only pass through the screen assembly 7 in a particle state after being sheared and conveyed for a preset distance. That is, the material will not pass through the screen assembly 7 quickly in a particle state, which makes it easier to make the particle size less susceptible to control by the size of the screen holes of the screen assembly 7.

[0049] Furthermore, such as Figure 3 and 5 The movable blade 5 includes: a fixing part 51 sleeved outside the drive shaft of the drive assembly 4; a plurality of blades 52 connected to the fixing part 51; and a groove 53 formed between adjacent blades 52. The grooves 53 of the plurality of movable blades 5 combine to form a spiral feeding channel, and the fixing part 51 is located inside the housing 1. Specifically, the fixing part 51 is used to fix the plurality of blades 52 outside the drive shaft of the drive assembly 4; the plurality of blades 52 cooperate with a plurality of fixed blades 6 to cut the material into granules. The specific number of the plurality of blades 52 is not limited and can be three, four, etc., preferably three, thereby preferably having three grooves 53, and consequently, preferably having three spiral feeding channels.

[0050] Furthermore, such as Figure 3 and 5 The moving blade 5 also includes an extension portion 54 sleeved around the drive shaft of the drive assembly 4. One end of the extension portion 54 is connected to the fixing portion 51, and the other end of the extension portion 54 abuts against the fixing portion 51 of the adjacent moving blade 5. The extension portion 54 and the fixed blade 6 are correspondingly arranged, and the extension portion 54 is located inside the housing 1. Specifically, the extension portion 54 facilitates the existence of a receiving cavity for accommodating the fixed blade 6 between the blades 52 of the adjacent moving blades 5, thereby facilitating the contact between the two sides of the fixed blade 6 and the blades 52 of the adjacent moving blades 5, and thus facilitating high shearing efficiency.

[0051] Furthermore, such as Figure 3 and 5It also includes: a plurality of first friction teeth 55 all disposed on the blade 52 of the moving blade 5; and a plurality of second friction teeth 61 all disposed on the fixed blade 6; wherein the first friction teeth 55 and the second friction teeth 61 abut against each other, or the first friction teeth 55 abut against the fixed blade 6, or the blade 52 of the moving blade 5 abut against the second friction teeth 61. Specifically, the first friction teeth 55 and the second friction teeth 61 are used to increase the friction force of the material during shearing, which facilitates the heating of the material and thus makes the shearing effect of the material better.

[0052] Furthermore, such as Figure 4 The screen assembly 7 includes: washers 71 spaced out from the drive shaft of the drive assembly 4; a fixed screen 72 fitted over the washers 71 and connected to the front end of the housing 1; and a plurality of first screen holes 721 provided in the fixed screen 72. Specifically, the washers 71 are connected to the front end of the housing 1 through the fixed screen 72, meaning that the drive shaft of the drive assembly 4 does not drive the washers 71 to rotate; the fixed screen 72 filters the particle size to a certain extent through the plurality of first screen holes 721.

[0053] Furthermore, such as Figure 4 The screen assembly 7 further includes: an adjustable screen 73 rotatably sleeved outside the washer 71, the adjustable screen 73 being rotatably connected to the front end of the housing 1; and a plurality of second screen holes 731 provided in the adjustable screen 73. Specifically, the adjustable screen 73 filters particle size to a certain extent through the plurality of second screen holes 731. Since the adjustable screen 73 is rotatably sleeved outside the washer 71, it is convenient to adjust the degree of communication between the second screen holes 731 and the first screen holes 721 by rotating the adjustable screen 73, thereby facilitating the screening of different particle sizes to a certain extent.

[0054] Furthermore, such as Figure 4 It also includes a discharge blade 81 sleeved around the drive shaft of the drive assembly 4. The discharge blade 81 is located inside the front end of the housing 1, and the discharge blade 81 and the screen assembly 7 abut against the side away from the moving blade 5 and the fixed blade 6. Specifically, the discharge blade 81 is used to cut particles that are stuck together.

[0055] Furthermore, such as Figure 4 It also includes a cap 82 sleeved on the drive shaft of the drive assembly 4, which abuts against the side of the unloading knife 81 away from the screen assembly 7. Specifically, the cap 82, in conjunction with the screen assembly 7, is used to axially limit the unloading knife 81.

[0056] Furthermore, such as Figure 1-2The drive assembly 4 includes a motor 41, a reducer 42, and a spindle 43. The output shaft of the motor 41 is connected to the input shaft of the reducer 42, and the output shaft of the reducer 42 is connected to the spindle 43. Several moving tools 5 are connected to the spindle 43. The output shaft of the reducer 42 is configured as the drive shaft of the drive assembly 4. Specifically, the output shaft of the motor 41 sequentially drives the input shaft of the reducer 42, the output shaft of the reducer 42, and the spindle 43 to rotate. The motor 41 can be a servo motor, a stepper motor, etc., and the reducer 42 is used to reduce speed and increase torque.

[0057] Furthermore, such as Figure 1-2 It also includes a base 9, with the drive assembly 4 and housing 1 all connected to the base 9. Specifically, the base 9 is used to support the drive assembly 4, housing 1, etc.

[0058] The above embodiments only illustrate several implementation methods of this utility model, and their descriptions are relatively specific and detailed, but they should not be construed as limiting the scope of this utility model patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this utility model, and these all fall within the protection scope of this utility model. Therefore, the protection scope of this utility model patent should be determined by the appended claims.

Claims

1. A multi-stage annular shearing machine, characterized in that, include: case; A feed hopper connected to the upper end of the housing; The discharge port is connected to the front end of the housing; Driver components; A plurality of movable blades are connected to the drive shaft of the drive assembly. The blades of the plurality of movable blades are provided with a helical helix angle so that the plurality of movable blades are combined to form a helical feeding channel. The blades of the plurality of movable blades are all located inside the housing. A plurality of fixed blades are connected within the housing, and the plurality of fixed blades are correspondingly fitted between the blades of adjacent moving blades; A screen assembly connected to the front end of the housing.

2. The multi-stage annular shearing machine according to claim 1, characterized in that, The moving blade includes: A fixing part that is sleeved onto the drive shaft of the drive assembly; A plurality of blades connected to the outside of the fixing part; A groove formed between adjacent blades; The grooves of the plurality of moving blades are combined to form the spiral feeding channel, and the fixing part is located inside the housing.

3. A multi-stage annular shearing machine according to claim 2, characterized in that, The moving blade also includes an extension portion sleeved outside the drive shaft of the drive assembly. One end of the extension portion is connected to the fixed portion, and the other end of the extension portion abuts against the fixed portion of the adjacent moving blade. The extension portion and the fixed blade are correspondingly arranged, and the extension portion is located inside the housing.

4. A multi-stage annular shearing machine according to claim 2, characterized in that, Also includes: A plurality of first friction teeth are provided on the blade of the moving knife; A plurality of second friction teeth are provided on the fixed cutter; Wherein, the first friction tooth and the second friction tooth abut against each other, or the first friction tooth abuts against the fixed blade, or the blade of the moving blade abuts against the second friction tooth.

5. A multi-stage annular shearing machine according to any one of claims 1-4, characterized in that, The screen assembly includes: Washers spaced apart and fitted onto the drive shaft of the drive assembly; A fixed screen is fitted over the gasket and connected to the inside of the front end of the housing; A plurality of first screen holes are provided in the fixed screen.

6. A multi-stage annular shearing machine according to claim 5, characterized in that, The screen assembly further includes: An adjustable screen is rotatably fitted around the washer, and the adjustable screen is rotatably connected to the inside of the front end of the housing; A plurality of second screen openings are provided in the adjustable screen.

7. A multi-stage annular shearing machine according to any one of claims 1-4, characterized in that, It also includes a discharge blade sleeved outside the drive shaft of the drive assembly. The discharge blade is located inside the front end of the housing. The discharge blade and the screen assembly abut against the side away from the moving blade and the fixed blade.

8. A multi-stage annular shearing machine according to claim 7, characterized in that, It also includes a cap sleeved around the drive shaft of the drive assembly, the cap abutting against the side of the unloading knife away from the screen assembly.

9. A multi-stage annular shearing machine according to any one of claims 1-4, characterized in that, The drive assembly includes a motor, a reducer, and a spindle. The output shaft of the motor is connected to the input shaft of the reducer, the output shaft of the reducer is connected to the spindle, and the plurality of moving tools are all connected to the spindle. The output shaft of the reducer is configured as the drive shaft of the drive assembly.

10. A multi-stage annular shearing machine according to any one of claims 1-4, characterized in that, It also includes a base, and both the drive assembly and the housing are connected to the base.

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