Powder grinding mechanism

Abstract

The utility model discloses a powder grinding mechanism, which belongs to the technical field of powder grinding and comprises a grinding machine shell, and a driving grinding component used for grinding materials is mounted on the grinding machine shell. The driving grinding assembly comprises a driving device and a grinding device, the grinding machine shell is connected with the grinding device, and the grinding device is connected with the driving device; a grinding assembly convenient to fixedly install is installed on the grinding machine shell. A door assembly used for sealing is installed on the grinding machine shell. A supporting assembly is installed on the grinding machine shell and connected with the driving device. By means of the mode, materials which are not completely ground in gaps are lifted and ground again through rotation of the scraping plate, and meanwhile ground powder accumulated in the gaps is stirred and brought up, so that the ground powder is sucked by an external air suction device to penetrate through a filter screen to be collected.

Description

Technical Field

[0001] The utility model relates to the technical field of powder grinding, and particularly relates to a powder grinding mechanism. Background Art

[0002] In the field of plastic recycling, it is usually necessary to grind the recycled plastic products into powders and mix them into newly produced plastics to achieve the effect of recycling plastics. In plastic grinding, a powder grinding mechanism is usually used for processing.

[0003] For example, the Chinese utility model patent CN219580717U discloses a powder grinding device. The rotating shaft is connected with a fixed shaft through a fixed shaft seat. The fixed shaft can rotate synchronously with the rotating shaft under the drive of a motor. A grinding roller is arranged on the fixed shaft. In this embodiment, the number of grinding rollers is two, and they are symmetrically arranged on both sides of the axial direction of the rotating shaft. When the rotating shaft rotates, the grinding rollers rotate synchronously with the fixed shaft to grind the powder in the grinding disc.

[0004] However, it still has the following drawbacks. During the grinding process of the device, some powder particles may fall into the gaps that the blades cannot grind, resulting in insufficient grinding.

[0005] Based on this, the utility model designs a powder grinding mechanism to solve the above problems. Summary of the Utility Model

[0006] In view of the above-mentioned drawbacks of the prior art, the utility model provides a powder grinding mechanism.

[0007] To achieve the above object, the utility model is realized through the following technical solutions:

[0008] A powder grinding mechanism includes a grinding machine housing, and a driving grinding component for grinding materials is installed on the grinding machine housing;

[0009] The driving grinding component includes a driving device and a grinding device. The grinding machine housing is connected with the grinding device, and the grinding device is connected with the driving device;

[0010] A grinding component for facilitating fixed installation is installed on the grinding machine housing;

[0011] A door component for sealing is installed on the grinding machine housing;

[0012] A support component is installed on the grinding machine housing, and the support component is connected with the driving device.

[0013] Further, the grinding device includes a tool holder, a rotating shaft, a nut, a fixing plate, a grinding blade, a scraper, a filter screen, and a trapezoidal block. A trapezoidal block is fixedly connected to the inner wall at the rear end of the grinding machine housing. The outer wall of the trapezoidal block is slidably connected to the filter screen. A rotating shaft is rotatably connected inside the trapezoidal block. The outer wall of the rotating shaft is slidably connected to the tool holder. The front end of the rotating shaft is threadedly connected to the nut. A plurality of fixing plates are fixedly connected to the outer wall of the tool holder at equal intervals. The left end of the fixing plate is fixedly connected to the grinding blade through the nut. The rear side of the upper end of the grinding blade is fixedly connected to the scraper.

[0014] Further, the rotating shaft is connected to a driving device.

[0015] Further, the driving device includes a motor, a pulley, and a belt. The rear end of the rotating shaft passes through the grinding machine housing and is fixedly connected to the pulley. The pulley is drivingly connected to the output end of the motor through the belt. The motor is connected to a support assembly.

[0016] Further, the grinding assembly includes a pressing ring, screws, grinding knives, sliders, and chutes. A plurality of grinding knives are in close contact and connected to the inner wall at the front end of the grinding machine housing at equal intervals. A chute is provided at one end of the grinding knife. A slider is fixedly connected to the other end of the grinding knife. The plurality of grinding knives are slidably connected through the chutes and the sliders. The front end of the grinding knife is in close contact and connected to the pressing ring. The pressing ring is fixedly connected to the grinding machine housing through a plurality of screws.

[0017] Further, the cross-section of the pressing ring is L-shaped.

[0018] Further, the door assembly includes a sealing door, a hinge, a handle, bolts, a feed inlet, and a discharge outlet. A hinge is fixedly connected to the front side of the outer wall at the left end of the grinding machine housing. The grinding machine housing is rotatably connected to the sealing door through the hinge. A handle is fixedly connected to the right side of the front end of the sealing door. Bolts are threadedly connected to the right side of the front end of the sealing door. The sealing door is fixedly connected to the grinding machine housing through the bolts. A feed inlet is fixedly connected to the front end of the sealing door. A discharge outlet is fixedly connected to the rear side of the left end of the grinding machine housing.

[0019] Further, the support assembly includes a support base and a fixing block. Fixing blocks are fixedly connected to the lower end of the grinding machine housing near the four corners. The lower end of the fixing block is fixedly connected to the support base. The motor is fixedly connected to the upper side of the right end of the support base.

[0020] The present utility model has the following technical effects:

[0021] 1. The present utility model provides power through the motor of the driving device that drives the grinding assembly. The output end of the motor drives the pulley to rotate through the belt. The rotation of the pulley drives the rotating shaft of the grinding device to rotate. The tool holder is fixed on the rotating shaft through the nut. The rotation of the rotating shaft drives the tool holder to rotate. The rotation of the tool holder drives the fixing plate to rotate. The rotation of the fixing plate drives the grinding blade to grind the material. The rotation of the grinding blade drives the scraper to rotate to lift the material in the gap between the grinding blade and the filter screen. The function of the trapezoidal block is to support and fix the filter screen. The material that has not been ground clean in the gap is lifted again for grinding by the rotation of the scraper. At the same time, the accumulated ground powder in the gap is stirred and lifted to facilitate the external suction device to suck the ground powder through the filter screen for collection.

[0022] 2. In the present utility model, the slider on one pressing ring of the grinding assembly is slid into the chute opened on the other pressing ring. By sequentially assembling multiple pressing rings along the inner wall of the grinding machine housing, after the assembly is completed, the protruding part at the rear end of the pressing ring is pressed against the inner wall of the grinding tool, and the pressing ring is fixed on the grinding machine housing through screws. By quickly disassembling and assembling the grinding tool, when only one grinding tool is damaged, it can be replaced directly, improving the efficiency of disassembly and replacement, and saving the replacement cost at the same time. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] In order to more clearly illustrate the technical solutions in the embodiments of the present utility model or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the drawings in the following description are only some embodiments of the present utility model. For those of ordinary skill in the art, without creative efforts, other drawings can be obtained based on these drawings.

[0024] Figure 1 is a three-dimensional view of a powder grinding mechanism of the present utility model Figure 1 ;

[0025] Figure 2 is a front view of a powder grinding mechanism of the present utility model;

[0026] Figure 3 is a cross-section along Figure 2 in the A-A direction Figure 1 ;

[0027] Figure 4 is a cross-section along Figure 2 in the A-A direction Figure 2 ;

[0028] Figure 5 is a partial part of a powder grinding mechanism of the present utility model Figure 1 ;

[0029] Figure 6 Partial parts of a powder grinding mechanism of the present utility model Figure 2 ;

[0030] Figure 7 It is a partial parts diagram of a grinding assembly of a powder grinding mechanism of the present utility model

[0031] The reference numerals in the figure respectively represent:

[0032] 1. Grinding machine housing; 2. Driving grinding assembly; 21. Driving device; 22. Grinding device; 211. Motor; 212. Pulley; 213. Belt; 221. Tool holder; 222. Rotating shaft; 223. Nut; 224. Fixed plate; 225. Grinding blade; 226. Scraper; 227. Filter screen; 228. Trapezoidal block; 3. Door assembly; 31. Sealing door; 32. Hinge; 33. Handle; 34. Bolt; 35. Feeding port; 36. Discharging port; 4. Grinding assembly; 41. Compression ring; 42. Screw; 43. Grinding knife; 44. Slide block; 45. Slide groove; 5. Support assembly; 51. Support seat; 52. Fixed block Specific embodiments

[0033] To make the objectives, technical solutions, and advantages of the embodiments of the present utility model clearer, the technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are some, but not all, of the embodiments of the present utility model. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without creative efforts shall fall within the protection scope of the present utility model

[0034] The present utility model will be further described below with reference to the embodiments

[0035] The "left", "right", "front", "rear", "upper", and "lower" mentioned in the following description are oriented in the perspective direction of the front view

[0036] Embodiment 1

[0037] Please refer to the accompanying specification Figure 1-7 , a powder grinding mechanism, including a grinding machine housing 1;

[0038] A driving grinding assembly 2 for grinding materials is installed on the grinding machine housing 1;

[0039] The driving grinding assembly 2 includes a driving device 21 and a grinding device 22. The grinding machine housing 1 is connected to the grinding device 22, the grinding device 22 is connected to the driving device 21, and the driving device 21 is connected to the support assembly 5;

[0040] The grinding device 22 includes a tool holder 221, a rotating shaft 222, a nut 223, a fixing plate 224, a grinding blade 225, a scraping plate 226, a filter screen 227 and a trapezoidal block 228. A trapezoidal block 228 is fixedly connected to the inner wall of the rear end of the grinding machine housing 1. The outer wall of the trapezoidal block 228 is slidably connected to a filter screen 227. A rotating shaft 222 is rotatably connected inside the trapezoidal block 228. The rotating shaft 222 is connected to the driving device 21. The outer wall of the rotating shaft 222 is slidably connected to a tool holder 221. A nut 223 is threadedly connected to the front end of the rotating shaft 222. A plurality of fixing plates 224 are fixedly connected to the outer wall of the tool holder 221 at equal intervals. The left end of the fixing plate 224 is fixedly connected to a grinding blade 225 by a nut. A scraping plate 226 is fixedly connected to the rear side of the upper end of the grinding blade 225;

[0041] The driving device 21 includes a motor 211, a pulley 212 and a belt 213. The rear end of the rotating shaft 222 passes through the grinding machine housing 1 and is fixedly connected to a pulley 212. The pulley 212 is drivingly connected to the output end of the motor 211 through a belt 213. The motor 211 is connected to the support assembly 5;

[0042] In the embodiment of the present utility model, when the device is ready to grind, power is provided by the motor 211 of the driving device 21 of the grinding assembly 2. The output end of the motor 211 drives the pulley 212 to rotate through the belt 213. The rotation of the pulley 212 drives the rotating shaft 222 of the grinding device 22 to rotate. The tool holder 221 is fixed on the rotating shaft 222 through the nut 223. The rotation of the rotating shaft 222 drives the tool holder 221 to rotate. The rotation of the tool holder 221 drives the fixing plate 224 to rotate. The rotation of the fixing plate 224 drives the grinding blade 225 to rotate and grind the material. The rotation of the grinding blade 225 drives the scraping plate 226 to rotate to lift the material in the gap between the grinding blade 225 and the filter screen 227. The function of the trapezoidal block 228 is to support and fix the filter screen 227. The material that is not ground clean in the gap is lifted again for grinding by the rotation of the scraping plate 226. At the same time, the accumulated ground powder in the gap is stirred and lifted to facilitate the external suction device to suck the ground powder through the filter screen 227 for collection.

[0043] A grinding assembly 4 that is convenient for fixed installation is installed on the grinding machine housing 1;

[0044] The grinding assembly 4 includes a pressing ring 41, screws 42, grinding knives 43, sliders 44 and chutes 45. A plurality of grinding knives 43 are in close contact connection with the inner wall of the front end of the grinding machine housing 1 at equal intervals. A chute 45 is opened at one end of the grinding knife 43. A slider 44 is fixedly connected to the other end of the grinding knife 43. The plurality of grinding knives 43 are slidably connected through the chutes 45 and the sliders 44. The front end of the grinding knife 43 is in close contact connection with the pressing ring 41. The pressing ring 41 is fixedly connected to the grinding machine housing 1 through a plurality of screws 42;

[0045] Preferably, the cross-section of the pressing ring 41 is L-shaped.

[0046] In the embodiment of the present utility model, when the device starts to be assembled, by sliding the slider 44 on one pressing ring 41 of the grinding assembly 4 into the chute 45 opened on the other pressing ring 41, and sequentially assembling a plurality of pressing rings 41 along the inner wall of the grinding machine housing 1. After the assembly is completed, by pressing the protruding part at the rear end of the pressing ring 41 against the inner wall of the grinding blade 43, and fixing the pressing ring 41 on the grinding machine housing 1 through the screw 42. By quickly disassembling and assembling the grinding blade 43, when only one grinding blade 43 is damaged, only it can be replaced, improving the efficiency of disassembly and replacement, and at the same time saving the replacement cost.

[0047] A door assembly 3 for sealing is installed on the grinding machine housing 1;

[0048] The door assembly 3 includes a sealing door 31, a hinge 32, a handle 33, a bolt 34, a feed inlet 35 and a discharge port 36. The front side of the outer wall at the left end of the grinding machine housing 1 is fixedly connected with a hinge 32. The grinding machine housing 1 is rotatably connected with the sealing door 31 through the hinge 32. The right side of the front end of the sealing door 31 is fixedly connected with a handle 33. The right side of the front end of the sealing door 31 is threadedly connected with a bolt 34. The sealing door 31 is fixedly connected with the grinding machine housing 1 through the bolt 34. The front end of the sealing door 31 is fixedly connected with a feed inlet 35. The rear side of the left end of the grinding machine housing 1 is fixedly connected with a discharge port 36;

[0049] In the embodiment of the present utility model, when the device starts to be installed, by pulling the handle 33 of the door assembly 3 to drive the sealing door 31 to move, the sealing door 31 rotates on the grinding machine housing 1 through the hinge 32. When the sealing door 31 is close to the grinding machine housing 1, the sealing door 31 is locked with the grinding machine housing 1 by rotating the bolt 34. When the device is ready to grind, materials are injected into the grinding machine housing 1 through the feed inlet 35, and the ground powder in the grinding machine housing 1 is sucked out through the discharge port 36 by an externally connected suction device. By sealing the device, it is avoided that the powder scatters everywhere during grinding and pollutes the air.

[0050] A support assembly 5 is installed on the grinding machine housing 1, and the support assembly 5 is connected to the driving grinding assembly 2;

[0051] The support assembly 5 includes a support base 51 and a fixing block 52. Fixing blocks 52 are fixedly connected to the lower end of the grinding machine housing 1 near the four corners. The lower end of the fixing block 52 is fixedly connected with a support base 51. The upper side of the right end of the support base 51 is fixedly connected with a motor 211;

[0052] In the embodiment of the present utility model, when the device starts to be installed, the motor 211 is fixed by the support base 51 of the support assembly 5, and the grinding machine housing 1 is fixed by the fixing block 52. By fixing the device, it is avoided that the device is damaged due to collision and falling.

[0053] The above embodiments are only used to illustrate the technical solutions of the present utility model, rather than to limit it; although the present utility model has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that: they can still modify the technical solutions recorded in the foregoing embodiments, or perform equivalent replacements on some of the technical features; and these modifications or replacements will not make the essence of the corresponding technical solutions deviate from the spirit and scope of the technical solutions of the embodiments of the present utility model.

Claims

1. A powder grinding mechanism, comprising a grinding machine housing (1), characterized in that: A driving grinding assembly (2) for grinding materials is mounted on the grinding machine housing (1); The driven grinding assembly (2) comprises a driving device (21) and a grinding device (22), the grinding machine housing (1) is connected to the grinding device (22), and the grinding device (22) is connected to the driving device (21); The grinding machine housing (1) is provided with a grinding assembly (4) which is convenient for fixed installation; A door assembly (3) for sealing is installed on the grinding machine housing (1); A support assembly (5) is installed on the grinding machine housing (1), and the support assembly (5) is connected to the driving device (21); The grinding device (22) comprises a knife seat (221), a rotating shaft (222), a nut (223), a fixing plate (224), a grinding blade (225), a scraper (226), a filter (227) and a trapezoidal block (228); the rear end inner wall of the grinding machine housing (1) is fixedly connected with the trapezoidal block (228); the outer wall of the trapezoidal block (228) is slidably connected with the filter (227); the inner part of the trapezoidal block (228) is rotatably connected with the rotating shaft (222); the outer wall of the rotating shaft (222) is slidably connected with the knife seat (221); the front end of the rotating shaft (222) is threadedly connected with a nut (223); the outer wall of the knife seat (221) is fixedly connected with a plurality of fixing plates (224) at equal intervals; the left end of the fixing plate (224) is fixedly connected with the grinding blade (225) via a nut; the upper rear side of the grinding blade (225) is fixedly connected with the scraper (226).

2. The powder grinding mechanism according to claim 1, characterized in that: The rotating shaft (222) is connected to the driving device (21).

3. The powder grinding mechanism according to claim 2, characterized in that: The driving device (21) comprises a motor (211), a pulley (212) and a belt (213); the rear end of the rotating shaft (222) passes through the grinding machine housing (1) and is fixedly connected to the pulley (212); the pulley (212) is transmission-connected to the output end of the motor (211) via the belt (213); and the motor (211) is connected to the supporting assembly (5).

4. The powder grinding mechanism according to claim 3, characterized in that: The grinding assembly (4) comprises a clamping ring (41), a screw (42), a grinding knife (43), a slider (44) and a slide groove (45); a plurality of grinding knives (43) are equidistantly contacted and connected to the front end of the inner wall of the grinding machine housing (1); a slide groove (45) is provided at one end of the grinding knife (43); a slider (44) is fixedly connected to the other end of the grinding knife (43); the plurality of grinding knives (43) are slidably connected to the slider (44) via the slide groove (45); the front end of the grinding knife (43) is contacted and connected to the clamping ring (41); and the clamping ring (41) is fixedly connected to the grinding machine housing (1) via a plurality of screws (42).

5. The powder grinding mechanism according to claim 4, characterized in that: The cross section of the clamping ring (41) is L-shaped.

6. The powder grinding mechanism according to claim 5, characterized in that: The door assembly (3) comprises a sealing door (31), a hinge (32), a handle (33), a bolt (34), a feed port (35) and a discharge port (36); the hinge (32) is fixedly connected to the front side of the outer wall of the left end of the grinding machine housing (1); the grinding machine housing (1) is rotatably connected to the sealing door (31) via the hinge (32); the handle (33) is fixedly connected to the right side of the front end of the sealing door (31); the bolt (34) is threadedly connected to the right side of the front end of the sealing door (31); the sealing door (31) is fixedly connected to the grinding machine housing (1) via the bolt (34); the feed port (35) is fixedly connected to the front end of the sealing door (31); and the discharge port (36) is fixedly connected to the rear side of the left end of the grinding machine housing (1).

7. The powder grinding mechanism according to claim 6, characterized in that: The support assembly (5) comprises a support seat (51) and a fixed block (52); the lower end of the grinding machine housing (1) is fixedly connected to the fixed block (52) near the four corners; the lower end of the fixed block (52) is fixedly connected to the support seat (51); and the upper right end of the support seat (51) is fixedly connected to the motor (211).

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