Tabletting crusher for epoxy resin powder coating

Abstract

The invention relates to the technical field of powder coatings, in particular to an epoxy resin powder coating tabletting crusher which comprises a crushing box, a crushing device and a sorting device. The sorting device comprises a screening assembly and a material returning assembly. The screening assembly comprises a filter plate, and the filter plate is obliquely mounted on the crushing box; the material returning assembly comprises a material returning pipe, a rotating shaft, a spiral blade and a first rotating motor; the material return pipe is installed on the outer side wall of the crushing box, the connecting position of the feeding end of the material return pipe and the crushing box is arranged close to the lower end of the filter plate, and the discharging end of the material return pipe is arranged close to a feeding port of the crushing box. The rotating shaft and the material returning pipe coaxially rotate, the spiral blade is fixedly connected to the rotating shaft, the first rotating motor is installed on the material returning pipe, and an output shaft of the first rotating motor is coaxially connected with the rotating shaft; and through the material returning assembly, the crushed tablets which do not meet the crushing requirement can be automatically conveyed to the position above the crushing device and are crushed again, and the crushing efficiency of the coating tablets is improved.

Description

Technical Field

[0001] The present application relates to the technical field of powder coatings, and in particular to a tablet crusher for epoxy resin powder coatings. Background Art

[0002] Powder coating is a solid powdered synthetic resin coating composed of solid resin, pigment, filler and additives. In the production process of powder coating: first, the raw materials are fully mixed in a certain proportion, then the mixed raw materials are melted, extruded and pressed into tablets into semi-finished products, and then the tablets are crushed by a tablet crushing device, and then packaged and stored.

[0003] The powder coating tablet crushing device in the prior art includes a box body, a driving motor is installed on the top of the box body, and the output shaft of the driving motor extends into the box body cavity and is installed at one end of the first crushing roller, the first crushing roller extends out of the box body and is installed at one end of the first crushing roller, the first gear is meshed with the second gear, the second gear is installed with the second crushing roller, the second crushing roller penetrates into the box body cavity and is movably connected to the box body, a protective shell is installed on opposite sides of the box body cavity, a support rod is installed in the protective shell cavity, a support block is slidably installed on the support rod, a spring is arranged on the top of the support rod, the support block is fixedly connected to the spring, a filter screen is installed between the four support blocks, a placing plate is installed at the bottom of the box body cavity, a placing frame is installed on the placing plate, a bidirectional motor is installed on the top of the placing frame, rotating disks are installed on both sides of the bidirectional motor, a rotating rod is installed on the opposite side of the two rotating disks, a connecting plate is movably installed on the rotating rod, the connecting plate is movably connected to the fixing frame through a rotating shaft, the fixing frame is fixedly connected to the filter screen, and a collecting box is installed at the bottom of the box body cavity.

[0004] In the crushing process of the above-mentioned paint tablets, first, the tablets are crushed by the first crushing roller and the second crushing roller, and then the crushed tablets are screened by the filter. The crushed tablets located above the filter need to be manually transferred to the first crushing roller and the second crushing roller for re-crushing, which affects the crushing efficiency of the paint tablets. Summary of the invention

[0005] In order to improve the crushing efficiency of paint tablets, the present application provides a tablet crusher for epoxy resin powder paint.

[0006] The present application provides a tablet crusher for epoxy resin powder coating, which adopts the following technical solution: A tablet crusher for epoxy resin powder coating, comprising a crushing box, a crushing device and a sorting device; The crushing device is installed on the crushing box, and the crushing device is arranged close to the feed opening of the crushing box; The sorting device comprises a screening component and a material return component; The screening assembly comprises a filter plate, which is obliquely mounted on the crushing box and is located in the inner cavity of the crushing box, and the filter plate divides the inner cavity of the crushing box into an upper chamber and a lower chamber; The material return assembly includes a material return pipe, a rotating shaft, a spiral blade and a first rotating motor; The return pipe is installed on the outer side wall of the crushing box, the connection position between the feed end of the return pipe and the crushing box is arranged near the lower end of the filter plate, and the inner cavity of the return pipe is communicated with the upper chamber, the discharge end of the return pipe is arranged near the feed port of the crushing box, and the connection position between the discharge end of the return pipe and the crushing box is located above the crushing device; The rotating shaft is coaxially arranged with the return pipe, and the rotating shaft is rotatably connected with the return pipe; The spiral blade is fixedly connected to the rotating shaft, and the spiral blade is located in the inner cavity of the return pipe; The first rotating motor is installed on the return pipe, and the output shaft of the first rotating motor is coaxially connected with the rotating shaft.

[0007] By adopting the above technical scheme, in the process of crushing the paint tablets, first, the paint tablets are placed into the crushing box along the feed port of the crushing box, the crushing device crushes the paint tablets, and the crushed tablets fall onto the filter plate. Due to the inclined setting of the filter plate, the crushed tablets smaller than the filter holes of the filter plate fall below the filter plate, and the crushed tablets larger than the filter holes of the filter plate gradually slide along the filter plate into the return pipe. Then, the first rotating motor is adjusted, and the output shaft of the first rotating motor drives the rotating shaft to rotate, and the rotating shaft drives the spiral blades to rotate synchronously, so that the crushed tablets that slide into the return pipe are gradually lifted to the discharge end of the return pipe, and then transported to the feed port of the crushing box along the discharge end of the return pipe, so as to realize repeated crushing of the paint tablets until the crushed tablets above the filter plate completely fall below the filter plate; the designed epoxy resin powder coating tablet crusher facilitates the automatic transportation of the crushed tablets that do not meet the crushing requirements to the top of the crushing device through the return component, and re-crushes them, thereby improving the crushing efficiency of the paint tablets.

[0008] Optionally, the screening assembly further includes a material guide frame, a vibrating member and a plurality of telescopic rods; The material guide frame is fixedly mounted on the crushing box, and the material guide frame is located directly below the crushing device; The filter plate is slidably connected to the crushing box, and the filter plate is located in the inner cavity of the crushing box, the filter plate is located between the crushing device and the material guide frame, and the filter plate and the material guide frame are connected through the telescopic rod; The plurality of telescopic rods are evenly distributed along the circumferential direction of the material guiding frame; The vibrating member is installed on the crushing box, and the vibrating member is used to drive the filter plate to vibrate up and down.

[0009] By adopting the above technical solution, the designed vibrating member and telescopic rod can facilitate driving the filter plate to vibrate up and down, thereby improving the screening efficiency of the crushed tablets and, at the same time, improving the efficiency of conveying the crushed tablets to the return pipe.

[0010] Optionally, the vibrating member includes a transverse rotating rod, a second rotating motor and a plurality of cams; The transverse rotation rod is rotatably connected to the crushing box; A plurality of cams are fixedly connected to the transverse rotating rod, and the cams are tightly pressed against the bottom wall of the filter plate; The second rotating motor is mounted on the crushing box, and one end of the transverse rotating rod extends out of the crushing box and is coaxially connected to the output shaft of the second rotating motor.

[0011] By adopting the above technical solution, the second rotating motor is adjusted, and the output shaft of the second rotating motor drives the transverse rotating rod to rotate, and the transverse rotating rod drives multiple cams to rotate synchronously. When the cam contacts the filter plate away from the side of the axis center line, the filter plate moves to the highest point, and the cam continues to rotate. Under the action of its own gravity and the telescopic rod, the filter plate is driven to move downward to achieve the up and down vibration of the filter plate. The designed vibration member is convenient for applying force to the filter plate, and cooperates with the telescopic rod to achieve the up and down vibration of the filter plate, thereby improving the screening efficiency of the crushed tablets and at the same time improving the efficiency of conveying the crushed tablets to the return pipe.

[0012] Optionally, it further comprises a grinding device for grinding and crushing the pressed tablets, the grinding device comprising a material guide pipe, a grinding fixed plate, a grinding movable plate, an auxiliary support frame, a driving member and a plurality of grinding bars, the material guide pipe, the grinding fixed plate, the grinding movable plate and the auxiliary support frame are located in the inner cavity of the crushing box and are arranged in order from high to low; The auxiliary support frame is coaxially fixed with the crushing box, the grinding disc is rotatably connected with the auxiliary support frame, a grinding cavity for crushing and grinding tablets is provided on the top wall of the grinding disc, and a discharge gap for material discharge is provided between the outer peripheral wall of the grinding disc and the inner side wall of the crushing box; The grinding fixed plate is coaxially fixed with the crushing box, a plurality of grinding strips are arranged on a side of the grinding fixed plate close to the grinding movable plate, and a side of the grinding strips away from the grinding fixed plate is in contact with the wall of the grinding chamber; One end of the material guide pipe is connected to the material discharge end of the material guide frame, and the other end is connected to the grinding fixed plate, and the inner cavity of the material guide frame is connected to the grinding cavity through the material guide pipe; The driving member is installed on the crushing box, and the driving member is used to drive the grinding movable disc to rotate.

[0013] By adopting the above technical scheme, the crushed tablets filtered along the filter plate fall into the guide frame, and then are concentratedly guided to the guide pipe through the guide frame, and then flow into the grinding chamber along the guide pipe, and then the driving member is adjusted, and the driving member drives the grinding movable disc to rotate. Since the grinding bar fits the wall of the grinding chamber, the grinding bar grinds and crushes the crushed tablets in the grinding chamber. At the same time, due to the rotation of the grinding movable disc, the ground and crushed tablets in the grinding chamber fall to the bottom of the crushing box along the discharge gap under the centrifugal force, and are discharged along the discharge port of the crushing box; the designed grinding device is convenient for grinding and crushing the crushed tablets in the grinding chamber, and at the same time, it is convenient to discharge the ground and crushed tablets along the discharge gap, so as to realize the grinding and crushing of the paint tablets.

[0014] Optionally, a plurality of accommodating grooves are provided on the wall of the grinding chamber, the plurality of accommodating grooves are evenly distributed along the circumferential direction of the grinding movable disk, and each of the accommodating grooves is arranged along the radial direction of the grinding movable disk.

[0015] By adopting the above technical solution, the accommodating groove is set up to facilitate the accommodating of the crushed tablets. At the same time, the crushed tablets are extruded and ground at the moment when the accommodating groove and the grinding strip are intertwined, until the particle size of the crushed tablets is smaller than the discharge gap between the grinding movable disc and the grinding fixed disc, and then they are discharged.

[0016] Optionally, the depth of the accommodating groove gradually decreases from a side close to the center of the grinding movable disk to a side close to the outer circumference of the grinding movable disk.

[0017] By adopting the above technical scheme, the depth of the receiving groove is gradually reduced from the center side of the grinding disk to the outer peripheral side of the grinding disk, so that the broken grinding tablets can be easily discharged along the receiving groove when subjected to centrifugal force; at the same time, when the broken tablets move centrifugally toward the outer peripheral wall of the grinding disk, the broken tablets are subjected to greater extrusion force, thereby achieving grinding and crushing of the broken tablets.

[0018] Optionally, the width of the accommodating groove gradually increases from a side close to the bottom wall of the grinding chamber to a side close to the grinding fixed plate.

[0019] By adopting the above technical solution, the width of the receiving groove gradually increases from the side close to the bottom wall of the grinding chamber to the side close to the grinding fixed plate, so that the discharge path of the broken and ground tablets is gradually increased, thereby increasing the discharge efficiency of the broken and ground tablets.

[0020] Optionally, the driving member includes a first driving motor and a rotating rod, the rotating rod is rotatably connected to the crushing box, and one end of the rotating rod is fixedly connected to the grinding movable disc, one end of the rotating rod extends out of the crushing box and is coaxially connected to the first driving motor, and the first driving motor is installed on the crushing box.

[0021] By adopting the above technical solution, the first drive motor is adjusted, and the output shaft of the first drive motor drives the rotating rod to rotate, and the rotating rod drives the grinding disk to rotate, and cooperates with the grinding bar to realize the grinding and crushing of the broken tablets in the receiving groove; the designed driving member is convenient for applying force to the grinding disk, and cooperates with the grinding bar to realize the grinding and crushing of the broken tablets.

[0022] Optionally, the grinding device includes a guide ring, a guide rod connected to each of the grinding strips, and a spring sleeved on each of the guide rods; The guide rod is arranged to penetrate the grinding fixed disk, and the guide rod is slidably connected to the grinding fixed disk, and the axial direction of the guide rod is parallel to the axial direction of the grinding fixed disk; The grinding plate is provided with a guide slot for sliding the grinding strip, one end of the guide rod extends into the guide slot and is fixedly connected to the grinding strip, and the other end extends out of the grinding plate and is fixedly connected to the guide ring; The spring is sleeved on the guide rod, and one end of the spring abuts against the guide rod, and the other end abuts against the grinding fixed disk.

[0023] By adopting the above technical solution, the designed guide ring, guide rod and spring are convenient for applying force to the grinding strip, so that the grinding strip has a tendency to move toward one side of the grinding movable disc, thereby ensuring the grinding and crushing quality of the crushing tablets.

[0024] Optionally, the crushing device includes a second drive motor, two crushing rollers and two rotating gears; The two crushing rollers are located on the same horizontal plane, and the two crushing rollers are axially arranged in parallel, and the crushing rollers are rotatably connected to the crushing box; One end of the crushing roller extends out of the crushing box and is coaxially connected to the rotating gear, and the two rotating gears are meshed; The second drive motor is mounted on the crushing box, and the output shaft of the second drive motor is coaxially connected to one end of one of the crushing rollers extending out of the crushing box.

[0025] By adopting the above technical solution, the second drive motor is adjusted, and the output shaft of the second drive motor drives one of the rotating gears to rotate, and the rotating gear drives the other rotating gear to rotate, and the rotating gear drives the crushing roller to rotate, thereby realizing the crushing of the paint tablets; the designed crushing device is convenient for crushing the paint tablets and realizes the preliminary crushing of the paint tablets.

[0026] In summary, the present application includes at least one of the following beneficial technical effects: 1. The designed tablet crusher for epoxy resin powder coating can apply force to the filter plate through the screening component, and realize the up and down vibration of the filter plate with the telescopic rod, so as to improve the efficiency of conveying the crushed tablets to the return pipe and improve the screening efficiency of the crushed tablets; the return component can automatically convey the crushed tablets that do not meet the crushing requirements to the top of the crushing device and crush them again, so as to improve the crushing efficiency of the coating tablets; 2. The designed tablet crusher for epoxy resin powder coating can grind and crush the broken tablets in the grinding chamber through the grinding device. At the same time, it is convenient to discharge the ground and crushed tablets along the discharge gap to achieve the grinding and crushing of coating tablets; and the grinding strips have a tendency to move to one side of the grinding moving disk to ensure the grinding and crushing quality of the broken tablets. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 This is a schematic diagram of the overall structure of a tablet crusher for epoxy resin powder coating according to Example 1 of the present application; Figure 2 is a cross-sectional view of a tablet crusher for epoxy resin powder coating according to Example 1 of the present application; Figure 3 yes Figure 2 A magnified schematic diagram of part A; Figure 4 yes Figure 2 An enlarged schematic diagram of part B; Figure 5 It is a partial structural schematic diagram of a tablet crusher for epoxy resin powder coatings in Example 1 of the present application, which is intended to illustrate a grinding movable disc and a grinding fixed disc; Figure 6 It is a cross-sectional view of the grinding plate in the tablet crusher for epoxy resin powder coating in Example 1 of the present application.

[0028] Description of reference numerals: 1. crushing box; 2. crushing device; 21. second drive motor; 22. rotating gear; 23. crushing roller; 3. sorting device; 31. screening assembly; 311. filter plate; 3111. upper chamber; 3112. lower chamber; 312. material guide frame; 313. telescopic rod; 314. vibrating member; 3141. second rotating motor; 3142. transverse rotating rod; 3143. cam; 32. material return assembly; 321. material return pipe; 322. first rotating motor; 323 , rotating shaft; 324, spiral blade; 4, grinding device; 41, driving member; 411, first driving motor; 412, rotating rod; 42, auxiliary support frame; 43, grinding movable plate; 431, grinding chamber; 432, receiving groove; 433, discharge gap; 44, grinding fixed plate; 441, guide groove; 45, grinding strip; 46, guide pipe; 47, guide rod; 48, spring; 49, guide ring; 5, negative pressure device; 51, guide funnel; 52, discharge pipe; 53, negative pressure pump; 54, valve. DETAILED DESCRIPTION

[0029] The following is combined with Figure 1-6 This application is described in further detail.

[0030] The embodiment of the present application discloses a tablet crusher for epoxy resin powder coating.

[0031] Reference Figure 1 and Figure 2 A tablet crusher for epoxy resin powder coating comprises a crushing box 1, a crushing device 2, a sorting device 3, a grinding device 4 and a negative pressure device 5; the crushing device 2 is installed on the crushing box 1, and the crushing device 2 is arranged near the feed port of the crushing box 1; the sorting device 3 comprises a screening component 31 and a return component 32, the screening component 31 and the return component 32 are both installed on the crushing box 1, and the screening component 31 is located below the crushing device 2; the grinding device 4 is installed on the crushing box 1, and the grinding device 4 is located below the screening component 31; after the coating tablets are crushed by the crushing device 2, they are screened by the screening component 31, and the crushed tablets with particle size meeting the requirements are transmitted to the grinding device 4, and the crushed tablets with particle size not meeting the requirements are re-transported to the feed port of the crushing box 1 through the return component 32, and are re-crushed by the crushing device 2 until the particle size of the crushed tablets meets the requirements, and then the crushed tablets are crushed and ground by the grinding device 4, and the crushed and ground tablets are discharged from the crushing box 1 through the negative pressure device 5.

[0032] Reference Figure 1 and Figure 2 The crushing device 2 includes a second drive motor 21, two crushing rollers 23 and two rotating gears 22; the two crushing rollers 23 are located on the same horizontal plane, and the two crushing rollers 23 are axially arranged in parallel, and the crushing rollers 23 are rotatably connected to the crushing box 1; the end of the crushing roller 23 extending out of the crushing box 1 is coaxially connected to the rotating gear 22. In this embodiment, the crushing roller 23 is key-connected with the rotating gear 22 so that the crushing roller 23 and the rotating gear 22 rotate synchronously, and the two rotating gears 22 are meshed; the second drive motor 21 is installed on the crushing box 1. In this embodiment, the second drive motor 21 is fixed to the crushing box 1 by bolts, and the output shaft of the second drive motor 21 is coaxially connected to the end of one of the crushing rollers 23 extending out of the crushing box 1. In this embodiment, the output shaft of the second drive motor 21 is fixedly connected to the crushing roller 23 by a coupling.

[0033] Reference Figure 2 and Figure 3The screening assembly 31 includes a filter plate 311, a material guide frame 312, a vibrating member 314 and a plurality of telescopic rods 313. The filter plate 311, the telescopic rod 313 and the material guide frame 312 are arranged in order from high to low; the filter plate 311 is located in the inner cavity of the crushing box 1, and the filter plate 311 is slidably connected to the crushing box 1. In the present application, the filter plate 311 is located between the crushing roller 23 and the material guide frame 312, and the filter plate 311 divides the inner cavity of the crushing box 1 into an upper chamber 3111 and a lower chamber 3112; in addition, the filter plate 311 in the present application is arranged obliquely so that the crushed pressed pieces with a particle size larger than the filter hole of the filter plate 311 are retained on the lower side of the filter plate 311; the material guide frame 312 The guide frame 312 is fixedly mounted on the crushing box 1, and is fixed to the inner wall of the crushing box 1 by welding. Moreover, the cross-sectional area of ​​the guide frame 312 gradually decreases from high to low. In the present embodiment, the guide frame 312 is arranged in a hollow inverted cone shape. The filter plate 311 is connected to the guide frame 312 by a plurality of telescopic rods 313. In the present application, the telescopic rods 313 may be three, four, or five, as long as the support of the filter plate 311 is achieved. In the present embodiment, the telescopic rods 313 are arranged in four numbers, and the four telescopic rods 313 are evenly distributed along the circumferential direction of the guide frame 312. The two ends of the telescopic rods 313 are respectively welded and fixed to the filter plate 311 and the guide frame 312. ; The vibrating member 314 is installed on the crushing box 1, and the vibrating member 314 is used to drive the filter plate 311 to vibrate up and down. The vibrating member 314 includes a transverse rotating rod 3142, a second rotating motor 3141 and a plurality of cams 3143; the transverse rotating rod 3142 is rotatably connected to the crushing box 1, and in this embodiment, the transverse rotating rod 3142 is horizontally arranged; a plurality of cams 3143 are fixedly connected to the transverse rotating rod 3142. In this application, the cams 3143 can be two, three or four, as long as the up and down vibration of the filter plate 311 is achieved and the screening efficiency of the crushing tablets is improved. In this embodiment, the cams 3143 are arranged in two, two A cam 3143 is arranged near the two ends of the transverse rotating rod 3142, and the cam 3143 and the transverse rotating rod 3142 are fixed by welding, and the cam 3143 is tightly pressed against the bottom wall of the filter plate 311. The cam 3143 and the filter plate 311 are in a continuous abutment state, so that the filter plate 311 vibrates up and down during the rotation of the cam 3143, thereby improving the screening efficiency of the crushing tablets; the second rotating motor 3141 is installed on the crushing box 1, and the transverse rotating rod 3142 extends out of the crushing box 1 at one end and is coaxially connected to the output shaft of the second rotating motor 3141. In this embodiment, the output shaft of the second rotating motor 3141 is fixed to the transverse rotating rod 3142 by a coupling.

[0034] Reference Figure 1 and Figure 2The return assembly 32 includes a return pipe 321, a rotating shaft 323, a spiral blade 324 and a first rotating motor 322; the return pipe 321 is installed on the outer side wall of the crushing box 1, and the axial direction of the return pipe 321 in the present application is parallel to the axial direction of the crushing box 1, and the return pipe 321 is fixedly connected to the crushing box 1 through a bracket; the connection position between the feed end of the return pipe 321 and the crushing box 1 is arranged close to the lower end of the filter plate 311, and the inner cavity of the return pipe 321 is connected to the upper chamber 3111. In this embodiment, the lowest point of the filter plate 311 is arranged opposite to the feed end of the return pipe 321, and the feed port of the return pipe 321 is arranged lower than the lowest point of the filter plate 311, and the discharge end of the return pipe 321 is close to the feed end of the crushing box 1 A material port is set, and the connection position between the discharge end of the return pipe 321 and the crushing box 1 is located above the crushing device 2. In this embodiment, the discharge end of the return pipe 321 is set higher than the feed port of the crushing box 1; the rotating shaft 323 is coaxially arranged with the return pipe 321, and the rotating shaft 323 is rotatably connected with the return pipe 321; the spiral blade 324 is fixedly connected to the rotating shaft 323. In this embodiment, the spiral blade 324 is welded to the rotating shaft 323, and the spiral blade 324 is located in the inner cavity of the return pipe 321; the first rotating motor 322 is installed on the return pipe 321, and the output shaft of the first rotating motor 322 is coaxially connected with the rotating shaft 323. In this embodiment, the output shaft of the first rotating motor 322 is fixed to the rotating shaft 323 by a coupling.

[0035] Reference Figure 2 and Figure 4The grinding device 4 includes a guide tube 46, a grinding fixed plate 44, a grinding movable plate 43, an auxiliary support frame 42, a guide ring 49, a driving member 41, a plurality of guide rods 47, a plurality of springs 48 and a plurality of grinding strips 45. The guide tube 46, the grinding fixed plate 44, the grinding movable plate 43 and the auxiliary support frame 42 are all located in the inner cavity of the crushing box 1 and are arranged in sequence from high to low; the auxiliary support frame 42 is coaxially fixed to the crushing box 1. In this embodiment, the auxiliary support frame 42 is fixed to the inner wall of the crushing box 1 by bolts, and the grinding movable plate 43 is rotatably connected to the upper part of the auxiliary support frame 42. A grinding cavity 431 for crushing tablet grinding is provided on the top wall of the grinding movable plate 43, and a plurality of receiving grooves 432 are provided on the cavity wall of the grinding cavity 431. In this application, the receiving grooves 432 can be six, seven or eight, as long as the placement of the crushing tablet is achieved. In this embodiment, eight receiving grooves 432 are provided, and the eight receiving grooves 432 are evenly distributed along the circumferential direction of the grinding movable plate 43, and each receiving groove 432 is uniform ... The grooves 432 are all arranged along the radial direction of the grinding movable disc 43; the depth of the accommodating grooves 432 gradually decreases from the side close to the center of the grinding movable disc 43 to the side close to the outer circumference of the grinding movable disc 43, and the width of the accommodating grooves 432 gradually increases from the side close to the bottom wall of the grinding chamber 431 to the side close to the grinding fixed disc 44; in addition, in the present application, a discharge gap 433 for material discharge is arranged between the outer circumferential wall of the grinding movable disc 43 and the inner side wall of the crushing box 1, so that the grinding pressed pieces located in the grinding chamber 431 are thrown to the discharge gap 433 under the centrifugal force during the rotation of the grinding movable disc 43, and fall to the bottom of the crushing box 1 along the discharge gap 433; the grinding fixed disc 44 is coaxially fixed to the crushing box 1, and in this embodiment, the grinding fixed disc 44 is fixed to the crushing box 1 by bolts; a plurality of grinding strips 45 are arranged on the side of the grinding fixed disc 44 close to the grinding movable disc 43, and the grinding strips 45 are in contact with the wall of the grinding chamber 431 away from the grinding fixed disc 44, refer to Figure 5 and Figure 6, a guide slot 441 for the grinding strip 45 to slide is provided on the grinding fixed disk 44, and the guide slot 441 is provided along the axial direction of the grinding fixed disk 44; a guide rod 47 is arranged to penetrate the grinding fixed disk 44, and the guide rod 47 is slidably connected to the grinding fixed disk 44, and the axial direction of the guide rod 47 is parallel to the axial direction of the grinding fixed disk 44. In this embodiment, the guide rod 47 is arranged along the length direction of the guide slot 441, and one end of the guide rod 47 extends into the guide slot 441 and the other end is fixedly connected to the grinding strip 45, and the other end extends to the top of the grinding fixed disk 44 and is fixedly connected to the guide ring 49; a spring 48 is sleeved on the guide rod 47, and one end of the spring 48 abuts against the guide rod 47, and the other end abuts against the grinding fixed disk 44. In this embodiment, the spring 48 drives the guide ring 49 to move to one side of the grinding fixed disk 44; one end of the guide pipe 46 is connected to the discharge end of the guide frame 312, and the other end is connected to the grinding fixed disk 44, and the guide pipe 46 is connected to the discharge end of the guide frame 312. The inner cavity of the material frame 312 is connected to the grinding cavity 431 through a material guide pipe 46. In this embodiment, the material guide pipe 46 is connected to the material guide frame 312 through a flange; the driving member 41 is installed on the crushing box 1, and the driving member 41 is used to drive the grinding movable disc 43 to rotate. The driving member 41 includes a first driving motor 411 and a rotating rod 412. The rotating rod 412 is rotatably connected to the crushing box 1, and one end of the rotating rod 412 is fixedly connected to the grinding movable disc 43. The rotating rod 412 extends out of the crushing box 1 and is coaxially connected to the first driving motor 411. The first driving motor 411 is installed on the crushing box 1, and the first driving motor 411 is fixed to the crushing box 1 by bolts; in addition, in the present application, the number of guide rods 47, springs 48 and grinding strips 45 is the same and the positions are corresponding, and four guide rods 47, springs 48 and grinding strips 45 are provided, and the four guide rods 47 are evenly distributed along the circumferential direction of the grinding fixed disc 44.

[0036] Reference Figure 1 and Figure 2 The negative pressure device 5 includes a material guiding funnel 51, a discharge pipe 52, a valve 54 and a negative pressure pump 53. The material guiding funnel 51 is located below the auxiliary support frame 42. The material guiding funnel 51 is welded to the inner wall of the crushing box 1. The discharge end of the material guiding funnel 51 is connected to the discharge pipe 52 through a flange. The negative pressure pump 53 and the valve 54 are both installed on the extension section of the discharge pipe 52 extending out of the crushing box 1.

[0037] The implementation principle of the tablet crusher for epoxy resin powder coating of the embodiment of the present application is as follows: in the process of crushing the coating tablets, first, the coating tablets are placed into the crushing box 1 along the feed port of the crushing box 1, and the second drive motor 21 is adjusted. The output shaft of the second drive motor 21 drives one of the rotating gears 22 to rotate, and the rotating gear 22 drives the other rotating gear 22 to rotate, and the rotating gear 22 drives the crushing roller 23 to rotate, so as to crush the coating tablets; the crushed tablets fall onto the filter plate 311, and at the same time, the second rotating motor 3141 is adjusted, and the output shaft of the second rotating motor 3141 drives the transverse rotating rod 3142 to rotate, and the transverse rotating rod 3142 drives the cam 3143 to rotate synchronously, so as to realize the up and down vibration of the filter plate 311. 311 is tilted, and the crushed tablets smaller than the filter holes of the filter plate 311 fall to the bottom of the filter plate 311, and the crushed tablets larger than the filter holes of the filter plate 311 gradually slide along the filter plate 311 into the return pipe 321. In addition, the first rotating motor 322 is adjusted, and the output shaft of the first rotating motor 322 drives the rotating shaft 323 to rotate, and the rotating shaft 323 drives the spiral blade 324 to rotate synchronously, so that the crushed tablets that slide into the return pipe 321 are gradually lifted to the discharge end of the return pipe 321, and then transported to the feed port of the crushing box 1 along the discharge end of the return pipe 321, until the crushed tablets above the filter plate 311 completely fall to the bottom of the filter plate 311, thereby achieving preliminary crushing of the paint tablets, and then fall into the grinding chamber 431 along the guide frame 312 and the guide pipe 46.

[0038] Then, the first drive motor 411 is adjusted, and the output shaft of the first drive motor 411 drives the rotating rod 412 to rotate, and the rotating rod 412 drives the grinding disk 43 to rotate, and cooperates with the grinding bar 45 to realize the grinding and crushing of the crushed tablets in the accommodating groove 432. Due to the action of the spring 48, the grinding bar 45 is driven to move to the side of the grinding disk 43, so that the grinding bar 45 and the grinding disk 43 are in a continuous fitting state. At the same time, due to the self-rotation of the grinding disk 43, the ground and crushed tablets in the grinding chamber 431 fall into the material guide funnel 51 along the discharge gap 433 under the centrifugal force, and then the valve 54 and the negative pressure pump 53 are adjusted. Under the action of the negative pressure pump 53, the ground and crushed tablets are discharged along the discharge pipe 52.

[0039] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereto. Therefore, any equivalent changes made according to the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. A tablet crusher for epoxy resin powder coating, characterized in that: It comprises a crushing box (1), a crushing device (2) and a sorting device (3); The crushing device (2) is installed on the crushing box (1), and the crushing device (2) is arranged close to the feed opening of the crushing box (1); The sorting device (3) comprises a screening component (31) and a material return component (32); The screening assembly (31) comprises a filter plate (311), the filter plate (311) being obliquely mounted on the crushing box (1), and the filter plate (311) being located in the inner cavity of the crushing box (1), and the filter plate (311) dividing the inner cavity of the crushing box (1) into an upper chamber (3111) and a lower chamber (3112); The material return assembly (32) comprises a material return pipe (321), a rotating shaft (323), a spiral blade (324) and a first rotating motor (322); The return pipe (321) is installed on the outer wall of the crushing box (1), the connection position between the feed end of the return pipe (321) and the crushing box (1) is arranged close to the lower end of the filter plate (311), and the inner cavity of the return pipe (321) is communicated with the upper chamber (3111), the discharge end of the return pipe (321) is arranged close to the feed port of the crushing box (1), and the connection position between the discharge end of the return pipe (321) and the crushing box (1) is located above the crushing device (2); The rotating shaft (323) is coaxially arranged with the return pipe (321), and the rotating shaft (323) is rotatably connected with the return pipe (321); The spiral blade (324) is fixedly connected to the rotating shaft (323), and the spiral blade (324) is located in the inner cavity of the return pipe (321); The first rotating motor (322) is installed on the return pipe (321), and the output shaft of the first rotating motor (322) is coaxially connected to the rotating shaft (323).

2. The tablet crusher for epoxy resin powder coating according to claim 1, characterized in that: The screening assembly (31) further comprises a material guiding frame (312), a vibrating member (314) and a plurality of telescopic rods (313); The material guide frame (312) is fixedly mounted on the crushing box (1), and the material guide frame (312) is located directly below the crushing device (2); The filter plate (311) is slidably connected to the crushing box (1), and the filter plate (311) is located in the inner cavity of the crushing box (1), the filter plate (311) is located between the crushing device (2) and the material guide frame (312), and the filter plate (311) and the material guide frame (312) are connected via the telescopic rod (313); The plurality of telescopic rods (313) are evenly distributed along the circumferential direction of the material guiding frame (312); The vibrating member (314) is mounted on the crushing box (1), and the vibrating member (314) is used to drive the filter plate (311) to vibrate up and down.

3. The tablet crusher for epoxy resin powder coating according to claim 2, characterized in that: The vibrating member (314) comprises a transverse rotating rod (3142), a second rotating motor (3141) and a plurality of cams (3142); The transverse rotating rod (3142) is rotatably connected to the crushing box (1); A plurality of cams (3142) are fixedly connected to the transverse rotating rod (3142), and the cams (3142) are tightly pressed against the bottom wall of the filter plate (311); The second rotating motor (3141) is mounted on the crushing box (1), and one end of the transverse rotating rod (3142) extends out of the crushing box (1) and is coaxially connected to the output shaft of the second rotating motor (3141).

4. The tablet crusher for epoxy resin powder coating according to claim 1, characterized in that: It also includes a grinding device (4) for grinding and crushing the pressed tablets, the grinding device (4) comprising a material guide pipe (46), a grinding fixed plate (44), a grinding movable plate (43), an auxiliary support frame (42), a driving member (41) and a plurality of grinding bars (45), the material guide pipe (46), the grinding fixed plate (44), the grinding movable plate (43) and the auxiliary support frame (42) are located in the inner cavity of the crushing box (1) and are arranged in descending order; The auxiliary support frame (42) is coaxially fixed to the crushing box (1), the grinding disc (43) is rotatably connected to the auxiliary support frame (42), a grinding cavity (431) for crushing and grinding tablets is provided on the top wall of the grinding disc (43), and a discharge gap (433) for material discharge is provided between the outer peripheral wall of the grinding disc (43) and the inner side wall of the crushing box (1); The grinding fixed disk (44) is coaxially fixed to the crushing box (1), a plurality of grinding strips (45) are arranged on a side of the grinding fixed disk (44) close to the grinding movable disk (43), and a side of the grinding strips (45) away from the grinding fixed disk (44) is in contact with the wall of the grinding chamber (431); One end of the material guide pipe (46) is connected to the material discharge end of the material guide frame (312), and the other end is connected to the grinding fixed plate (44), and the inner cavity of the material guide frame (312) and the grinding cavity (431) are connected through the material guide pipe (46); The driving member (41) is installed on the crushing box (1), and the driving member (41) is used to drive the grinding movable disc (43) to rotate.

5. The tablet crusher for epoxy resin powder coating according to claim 4, characterized in that: A plurality of accommodating grooves (432) are provided on the wall of the grinding chamber (431), the plurality of accommodating grooves (432) are evenly distributed along the circumferential direction of the grinding movable disc (43), and each of the accommodating grooves (432) is arranged along the radial direction of the grinding movable disc (43).

6. The tablet crusher for epoxy resin powder coating according to claim 5, characterized in that: The depth of the accommodating groove (432) gradually decreases from a side close to the center of the grinding movable disc (43) to a side close to the outer periphery of the grinding movable disc (43).

7. The tablet crusher for epoxy resin powder coating according to claim 5, characterized in that: The width of the accommodating groove (432) gradually increases from a side close to the bottom wall of the grinding chamber (431) to a side close to the grinding fixed plate (44).

8. The tablet crusher for epoxy resin powder coating according to claim 5, characterized in that: The driving member (41) comprises a first driving motor (411) and a rotating rod (412); the rotating rod (412) is rotatably connected to the crushing box (1), and one end of the rotating rod (412) is fixedly connected to the grinding movable disc (43); one end of the rotating rod (412) extends out of the crushing box (1) and is coaxially connected to the first driving motor (411); and the first driving motor (411) is installed on the crushing box (1).

9. The tablet crusher for epoxy resin powder coating according to claim 4, characterized in that: The grinding device (4) comprises a guide ring (49), a guide rod (47) connected to each of the grinding strips (45), and a spring (48) sleeved on each of the guide rods (47); The guide rod (47) is arranged to penetrate the grinding fixed disk (44), and the guide rod (47) is slidably connected to the grinding fixed disk (44), and the axial direction of the guide rod (47) is parallel to the axial direction of the grinding fixed disk (44); The grinding plate (44) is provided with a guide groove (441) for the grinding strip (45) to slide, one end of the guide rod (47) extends into the guide groove (441) and one end is fixedly connected to the grinding strip (45), and the other end extends out of the grinding plate (44) and is fixedly connected to the guide ring (49); The spring (48) is sleeved on the guide rod (47), and one end of the spring (48) abuts against the guide rod (47), and the other end abuts against the grinding fixed plate (44).

10. The tablet crusher for epoxy resin powder coating according to claim 1, characterized in that: The crushing device (2) comprises a second driving motor (21), two crushing rollers (23) and two rotating gears (22); The two crushing rollers (23) are located on the same horizontal plane, and the two crushing rollers (23) are axially arranged in parallel, and the crushing rollers (23) are rotatably connected to the crushing box (1); One end of the crushing roller (23) extends out of the crushing box (1) and is coaxially connected to the rotating gear (22), and the two rotating gears (22) are meshed; The second drive motor (21) is mounted on the crushing box (1), and the output shaft of the second drive motor (21) is coaxially connected to one end of one of the crushing rollers (23) extending out of the crushing box (1).

Images