Raw material grinding mechanism for waterborne polyurethane resin production

Abstract

The utility model relates to the field of waterborne polyurethane resin production equipment, in particular to a raw material grinding mechanism for waterborne polyurethane resin production, which comprises a bottom plate, a screening structure arranged on the bottom plate, and a grinding structure arranged on the bottom plate. According to the raw material grinding mechanism for waterborne polyurethane resin production, a first motor of a screening structure drives a first belt wheel to rotate, the first belt wheel drives a transmission belt to rotate, a second belt wheel drives a rotating shaft to rotate on a supporting frame under the action of the transmission belt, a crank rotates along with the rotating shaft, and then a connecting rod can be driven to do reciprocating motion; the moving frame reciprocates on the guide rails through the moving wheels under the action of the mounting frame, powder falling onto the filter plate can be screened, the powder screened through the filter plate falls into the moving frame and then is discharged, and large-particle powder not screened through the filter plate is discharged through the shaking frame under the action of reciprocating motion. And blockage caused by staying on the filter plate is avoided.

Description

TECHNICAL FIELD

[0001] The utility model relates to waterborne polyurethane resin production equipment field especially relates to a raw material grinding mechanism for waterborne polyurethane resin production. BACKGROUND

[0002] Waterborne polyurethane resin is a kind of polyurethane with water as dispersion medium, which is produced by installing various raw materials in certain proportion and sequence through synthesis reaction, neutralization, diffusion and emulsification process.

[0003] In order to improve the reaction efficiency and the utilization rate of raw materials during the reaction, the solid waterborne polyurethane resin production raw materials need to be ground into fine powder in advance. In actual use, the large particle powder will be directly retained on the screening net after being filtered, and when there is too much residue, the screening net will be blocked, affecting the work efficiency. UTILITY MODEL CONTENT

[0004] The utility model discloses a raw material grinding mechanism for waterborne polyurethane resin production, which solves the problem of the large particle powder being directly retained on the screening net after being filtered in actual use, and when there is too much residue, the screening net will be blocked, affecting the work efficiency.

[0005] To achieve the above object, the utility model provides the following technical scheme, a raw material grinding mechanism for waterborne polyurethane resin production, including the bottom plate, be provided with the screening structure on the bottom plate, be provided with the grinding structure on the bottom plate;

[0006] The screening structure comprises a support frame, a guide rail, a first motor, a first belt pulley, a rotating shaft, a second belt pulley, a transmission belt, a crank, a moving wheel, a moving frame, a shaking frame, a feeding hopper, a connecting frame, a filter plate, a fixing frame, a moving rod, a resisting plate, a spring, a mounting frame and a connecting rod, the support frame is mounted on the bottom plate, the guide rail is mounted on the support frame, the first motor is mounted on the support frame, the first belt pulley is arranged on the first motor, the rotating shaft is movably mounted on the support frame, the second belt pulley is mounted on the rotating shaft, the transmission belt is mounted on the first belt pulley and the second belt pulley, the crank is mounted on the rotating shaft away from the second belt pulley, the moving wheel is mounted on the moving frame and movably connected with the guide rail, the shaking frame is mounted on the moving frame, the feeding hopper is mounted on the shaking frame, the connecting frame is arranged on the shaking frame, the filter plate is movably mounted on the connecting frame, the fixing frame is mounted on the connecting frame, the moving rod is movably mounted on the fixing frame, the resisting plate is mounted on the moving rod, the spring is arranged on the fixing frame and connected with the resisting plate, the mounting frame is mounted on the moving frame, and the connecting rod is movably arranged on the crank and movably connected with the mounting frame at an end away from the crank.

[0007] Preferably, reinforcing ribs are arranged on the support frame, and supporting legs are arranged on the bottom plate.

[0008] Preferably, the filter plate is matched with the connecting frame, and a pulling plate is arranged at one end of the moving rod.

[0009] Preferably, the grinding structure comprises a placing frame, a first grinding disc, a first grinding block, a rotating shaft, a second grinding disc, a second grinding block, a feeding pipe, a first toothed wheel, a second motor, a second toothed wheel and a toothed belt, the placing frame is mounted on the bottom plate, the first grinding disc is arranged on the placing frame, the first grinding block is arranged on the first grinding disc, the rotating shaft is movably mounted on the placing frame, the second grinding disc is mounted on the rotating shaft, the second grinding block is arranged on the second grinding disc, the feeding pipe is mounted on the rotating shaft away from the second grinding disc, the first toothed wheel is mounted on the moving rod, the second motor is mounted on the placing frame, the second toothed wheel is mounted on the driving end of the second motor, and the toothed belt is arranged on the first toothed wheel and the second toothed wheel.

[0010] Preferably, a plurality of first grinding blocks and second grinding blocks are arranged, and the first grinding blocks and the second grinding blocks are arranged in opposite directions.

[0011] Preferably, reinforcing ribs are arranged on the placing frame, and the second motor is fixed on the placing frame through bolts.

[0012] Preferably, the guide rail is matched with the moving wheel, and the filter plate is provided with a handle.

[0013] Compared with the prior art, the beneficial effects of the raw material grinding mechanism for waterborne polyurethane resin production are as follows: the first motor of the screening structure drives the first pulley to rotate, the first pulley drives the transmission belt to rotate, the second pulley drives the rotating shaft to rotate on the support frame under the action of the transmission belt, the crank rotates with the rotating shaft, and then the connecting rod can be driven to reciprocate, the moving frame can reciprocate on the guide rail under the action of the mounting frame through the moving wheel, the powder falling into the filter plate can be screened, the powder screened by the filter plate falls into the moving frame and is discharged, and the large-particle powder not screened by the filter plate is discharged through the shaking frame under the action of reciprocation and cannot stay on the filter plate to cause blockage. BRIEF DESCRIPTION OF DRAWINGS

[0014] Figure 1 It is a structure schematic view of the utility model;

[0015] Figure 2 It is another perspective structure schematic view of the utility model;

[0016] Figure 3 It is a screening structure schematic view of the utility model;

[0017] Figure 4 It is a shaking frame structure schematic view of the utility model;

[0018] Figure 5 It is a first grinding disc and second grinding disc cooperation structure schematic view of the utility model;

[0019] In the drawing: 1, bottom plate; 2, screening structure; 201, support frame; 202, guide rail; 203, first motor; 204, first pulley; 205, rotating shaft; 206, second pulley; 207, transmission belt; 208, crank; 209, moving wheel; 210, moving frame; 211, shaking frame; 212, feed hopper; 213, connecting frame; 214, filter plate; 215, fixed frame; 216, moving rod; 217, abutment plate; 218, spring; 219, mounting frame; 220, connecting rod; 3, grinding structure, 301, placing frame; 302, first grinding disc; 303, first grinding block; 304, rotating shaft; 305, second grinding disc; 306, second grinding block; 307, feed pipe; 308, first toothed wheel; 309, second motor; 310, second toothed wheel; 311, toothed belt. DETAILED DESCRIPTION

[0020] Clearly, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments, and all other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present application without creative labor fall within the scope of protection of the present application.

[0021] Please refer to Figures 1-5 The utility model provides a technical scheme: a raw material grinding mechanism for waterborne polyurethane resin production, including bottom plate 1, be provided with screening structure 2 on the bottom plate 1, be provided with grinding structure 3 on the bottom plate 1;

[0022] The screening structure 2 comprises a support frame 201, a guide rail 202, a first motor 203, a first pulley 204, a rotating shaft 205, a second pulley 206, a transmission belt 207, a crank 208, a moving wheel 209, a moving frame 210, a shaking frame 211, a feeding hopper 212, a connecting frame 213, a filter plate 214, a fixing frame 215, a moving rod 216, a resisting plate 217, a spring 218, a mounting frame 219 and a connecting rod 220, the support frame 201 is mounted on the bottom plate 1, the guide rail 202 is mounted on the support frame 201, the first motor 203 is mounted on the support frame 201, the first pulley 204 is arranged on the first motor 203, the rotating shaft 205 is movably mounted on the support frame 201, the second pulley 206 is mounted on the rotating shaft 205, the transmission belt 207 is mounted on the first pulley 204 and the second pulley 206, the crank 208 is mounted on the rotating shaft 205 away from the second pulley 206, the moving wheel 209 is mounted on the moving frame 210 and movably connected with the guide rail 202, the shaking frame 211 is mounted on the moving frame 210, the feeding hopper 212 is mounted on the shaking frame 211, the connecting frame 213 is arranged on the shaking frame 211, the filter plate 214 is movably mounted on the connecting frame 213, the fixing frame 215 is mounted on the connecting frame 213, the moving rod 216 is movably mounted on the fixing frame 215, the resisting plate 217 is mounted on the moving rod 216, the spring 218 is arranged on the fixing frame 215 and connected with the resisting plate 217, the mounting frame 219 is mounted on the moving frame 210, the connecting rod 220 is movably arranged on the crank 208 and movably connected with the mounting frame 219 away from the crank 208, the moving frame 210 and the shaking frame 211 are arranged obliquely, the guide rail 202 is arranged in pairs and symmetrically on the support frame 201, the moving wheel 209 is arranged in four and symmetrically on the moving frame 210, the moving frame 210 can move on the guide rail 202 through the moving wheels 209, the moving frame 210 and the shaking frame 211 are provided with external collecting devices at the discharge ends, the moving frame 210 discharges screened powder, the shaking frame 211 discharges large-particle powder which is not filtered by the filter plate 214, the first motor 203 is driven, the first motor 203 drives the first pulley 204 to rotate, the first pulley 204 drives the transmission belt 207 to rotate, the second pulley 206 drives the rotating shaft 205 to rotate on the support frame 201 under the action of the transmission belt 207, the crank 208 rotates with the rotating shaft 205, thereby driving the connecting rod 220 to reciprocate, the moving frame 210 reciprocates on the guide rail 202 through the moving wheels 209 under the action of the mounting frame 219, and the powder falling on the filter plate 214 can be screened,The powder screened by the filter plate 214 falls into the moving frame 210 and is discharged from the rear, and the large-particle powder that is not screened by the filter plate 214 is discharged by the shaking frame 211 under the action of reciprocating motion and does not stay on the filter plate 214 to cause blockage. When the filter plate 214 needs to be replaced, the moving rod 216 is pulled, the moving rod 216 moves on the fixed frame 215, one end of the moving rod 216 is no longer clamped and fixed away from the filter plate 214, the abutting plate 217 moves away from the filter plate 214 along with the moving rod 216, at this time the spring 218 is compressed, the filter plate 214 is taken off from the connecting frame 213 for replacement, after replacement, the filter plate 214 is placed on the connecting frame 213, the moving rod 216 is loosened, the spring 218 is reset, the spring 218 drives the abutting plate 217 to abut against the connecting frame 213, one end of the moving rod 216 penetrates through the side wall surface of the connecting frame 213 and abuts against the filter plate 214, and the moving rod 216 can fix the filter plate 214 on the shaking frame 211 under the action of the spring 218.

[0023] Further, the support frame 201 is provided with a reinforcing rib, the reinforcing rib increases the stability of the support frame 201, and the bottom plate 1 is provided with a support leg, the support leg is provided with a plurality of support legs evenly arranged on the side wall surface of the bottom plate 1 away from the support frame 201, and the plurality of support legs can make the device stable.

[0024] Further, the filter plate 214 is matched with the connecting frame 213, the matched filter plate 214 is convenient to place stably in the connecting frame 213, and one end of the moving rod 216 is provided with a pull plate, the pull plate is arranged at one end of the moving rod 216 away from the abutting plate 217, and the pull plate is convenient to drive the moving rod 216 to move on the fixed frame 215.

[0025] Further, the grinding structure 3 comprises a placing rack 301, a first grinding disc 302, a first grinding block 303, a rotating shaft 304, a second grinding disc 305, a second grinding block 306, a feeding pipe 307, a first toothed wheel 308, a second motor 309, a second toothed wheel 310 and a toothed belt 311, the placing rack 301 is installed on the bottom plate 1, the first grinding disc 302 is arranged on the placing rack 301, the first grinding block 303 is arranged on the first grinding disc 302, the rotating shaft 304 is movably installed on the placing rack 301, the second grinding disc 305 is installed on the rotating shaft 304, the second grinding block 306 is arranged on the second grinding disc 305, the feeding pipe 307 is installed on the rotating shaft 304 away from the second grinding disc 305, the first toothed wheel 308 is installed on the moving rod 216, the second motor 309 is installed on the placing rack 301, the second toothed wheel 310 is installed on the driving end of the second motor 309, the toothed belt 311 is arranged on the first toothed wheel 308 and the second toothed wheel 310, the second motor 309 drives the second toothed wheel 310 to rotate, the toothed belt 311 drives the first toothed wheel 308 to rotate under the action of the second toothed wheel 310, and the rotating shaft 304 drives the second grinding disc 305 to rotate under the action of the first toothed wheel 308. The raw materials are put into through the feeding pipe 307, the raw materials enter between the first grinding disc 302 and the second grinding disc 305, the raw materials are ground through the first grinding block 303 and the second grinding block 306 on the first grinding disc 302 and the second grinding disc 305, and the ground powder falls on the filter plate 214 through the feeding hopper 212.

[0026] Further, the first grinding block 303 and the second grinding block 306 are arranged in a plurality of numbers, and the plurality of first grinding blocks 303 and the plurality of second grinding blocks 306 are arranged in a circumferential direction on the first grinding disc 302 and the second grinding disc 305 respectively, so as to facilitate grinding of the objects, and the first grinding block 303 and the second grinding block 306 are arranged in opposite directions, and the plurality of first grinding blocks 303 and the plurality of second grinding blocks 306 arranged in opposite directions can increase the grinding effect.

[0027] Further, the placing rack 301 is provided with reinforcing ribs, the reinforcing ribs increase the stability of the placing rack 301, and the second motor 309 is fixed on the placing rack 301 through bolts, so as to facilitate installation and dismounting of the second motor 309 on the placing rack 301.

[0028] Further, the guide rail 202 is matched with the moving wheel 209, the moving wheel 209 moves more stably on the guide rail 202, and the filter plate 214 is provided with a handle arranged at one end of the filter plate 214, so as to facilitate pulling and removing the filter plate 214 from the connecting frame 213 for replacement.

[0029] Working principle: when the raw materials need to be ground, the second motor 309 is driven, the second motor 309 can drive the second toothed wheel 310 to rotate, the toothed belt 311 drives the first toothed wheel 308 to rotate under the action of the second toothed wheel 310, the rotating shaft 304 drives the second grinding disc 305 to rotate under the action of the first toothed wheel 308, the raw materials are put in through the feeding pipe 307, the raw materials enter between the first grinding disc 302 and the second grinding disc 305, the raw materials are ground through the first grinding block 303 and the second grinding block 306 on the first grinding disc 302 and the second grinding disc 305, the ground powder falls on the filter plate 214 through the feeding hopper 212, the first motor 203 is driven, the first motor 203 drives the first pulley 204 to rotate, the first pulley 204 drives the transmission belt 207 to rotate, the second pulley 206 drives the rotating shaft 205 to rotate on the support frame 201 under the action of the transmission belt 207, the crank 208 rotates with the rotating shaft 205, and then the connecting rod 220 can be driven to reciprocate, the moving frame 210 moves on the guide rail 202 through the moving wheel 209 under the action of the mounting frame 219, and the powder falling on the filter plate 214 can be screened, the powder screened through the filter plate 214 falls on the moving frame 210 and is discharged, the large particle powder not screened through the filter plate 214 is discharged through the shaking frame 211 under the action of reciprocating motion, and the large particle powder cannot stay on the filter plate 214 to cause blockage, when the filter plate 214 needs to be replaced, the moving rod 216 is pulled, the moving rod 216 moves on the fixed frame 215, one end of the moving rod 216 is away from the filter plate 214 and is no longer clamped and fixed, the abutting plate 217 moves away from the filter plate 214 along with the moving rod 216, at this time the spring 218 is compressed, the filter plate 214 is taken off from the connecting frame 213 for replacement, after replacement, the filter plate 214 is placed on the connecting frame 213, the moving rod 216 is loosened, the spring 218 is reset, the spring 218 drives the abutting plate 217 to abut against the connecting frame 213, and one end of the moving rod 216 penetrates through the side wall surface of the connecting frame 213 and abuts against the filter plate 214, so that the moving rod 216 can fix the filter plate 214 on the shaking frame 211 under the action of the spring 218.

[0030] Although the embodiments of the present application have been shown and described, it should be understood by those skilled in the art that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of the present application, and the scope of the present application is defined by the appended claims and their equivalents.

Claims

1. A raw material grinding mechanism for producing an aqueous polyurethane resin, comprising a base plate (1), characterized in that: The bottom plate (1) is provided with a screening structure (2), and the bottom plate (1) is provided with a grinding structure (3). The screening structure (2) comprises a support frame (201), a guide rail (202), a first motor (203), a first belt pulley (204), a rotating shaft (205), a second belt pulley (206), a transmission belt (207), a crank (208), a moving wheel (209), a moving frame (210), a shaking frame (211), a feeding hopper (212), a connecting frame (213), a filter plate (214), a fixing frame (215), a moving rod (216), a resisting plate (217), a spring (218), a mounting frame (219) and a connecting rod (220), the support frame (201) is mounted on the bottom plate (1), the guide rail (202) is mounted on the support frame (201), the first motor (203) is mounted on the support frame (201), the first belt pulley (204) is arranged on the first motor (203), the rotating shaft (205) is movably mounted on the support frame (201), the second belt pulley (206) is mounted on the rotating shaft (205), the transmission belt (207) is mounted on the first belt pulley (204) and the second belt pulley (206), the crank (208) is mounted on the rotating shaft (205) away from the second belt pulley (206), the moving wheel (209) is mounted on the moving frame (210) and movably connected with the guide rail (202), the shaking frame (211) is mounted on the moving frame (210), the feeding hopper (212) is mounted on the shaking frame (211), the connecting frame (213) is arranged on the shaking frame (211), the filter plate (214) is movably mounted on the connecting frame (213), the fixing frame (215) is mounted on the connecting frame (213), the moving rod (216) is movably mounted on the fixing frame (215), the resisting plate (217) is mounted on the moving rod (216), the spring (218) is arranged on the fixing frame (215) and connected with the resisting plate (217), the mounting frame (219) is mounted on the moving frame (210), and the connecting rod (220) is movably arranged on the crank (208) and movably connected with the mounting frame (219) away from the crank (208).

2. The raw material grinding mechanism for producing a waterborne polyurethane resin according to claim 1, characterized in that: The support frame (201) is provided with a reinforcing rib, and the bottom plate (1) is provided with a supporting leg.

3. The raw material grinding mechanism for producing a waterborne polyurethane resin according to claim 1, characterized in that: The filter plate (214) is matched with the connecting frame (213), and one end of the moving rod (216) is provided with a pulling plate.

4. The raw material grinding mechanism for producing a waterborne polyurethane resin according to claim 1, characterized in that: The grinding structure (3) comprises a placing rack (301), a first grinding disc (302), a first grinding block (303), a rotating shaft (304), a second grinding disc (305), a second grinding block (306), a feeding pipe (307), a first toothed wheel (308), a second motor (309), a second toothed wheel (310) and a toothed belt (311), the placing rack (301) is installed on the bottom plate (1), the first grinding disc (302) is arranged on the placing rack (301), the first grinding block (303) is arranged on the first grinding disc (302), the rotating shaft (304) is movably installed on the placing rack (301), the second grinding disc (305) is installed on the rotating shaft (304), the second grinding block (306) is arranged on the second grinding disc (305), the feeding pipe (307) is installed on the rotating shaft (304) away from the second grinding disc (305), the first toothed wheel (308) is installed on the moving rod (216), the second motor (309) is installed on the placing rack (301), the second toothed wheel (310) is installed on the driving end of the second motor (309), and the toothed belt (311) is arranged on the first toothed wheel (308) and the second toothed wheel (310).

5. The raw material grinding mechanism for producing a waterborne polyurethane resin according to claim 4, characterized in that: The first grinding block (303) and the second grinding block (306) are provided in plurality, and the first grinding block (303) and the second grinding block (306) are oppositely arranged.

6. The raw material grinding mechanism for producing a waterborne polyurethane resin according to claim 4, characterized in that: The placing rack (301) is provided with reinforcing ribs, and the second motor (309) is fixed on the placing rack (301) through bolts.

7. The raw material grinding mechanism for producing a waterborne polyurethane resin according to claim 1, characterized in that: The guide rail (202) is matched with the moving wheel (209), and the filter plate (214) is provided with a handle.

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