Feeding mechanism of grinding machine for putty powder production

Abstract

The invention relates to the technical field of putty powder grinding, in particular to a feeding mechanism of a grinding machine for putty powder production, which comprises a feeding machine body mounted on a grinding machine body, at least two primary grinding cavities formed on the feeding machine body, a charging device mounted on the feeding machine body and a heat exchange cavity formed in the feeding machine body and arranged around the primary grinding cavities; when the caked powder is eliminated, the caked powder is pretreated through the smashing structure in the primary grinding cavity of the feeding mechanism and then fed into the grinding cavity, the caked powder is smashed and preheated in the primary grinding cavity and is decomposed into a plurality of small-sized cakes, and the small-sized cakes are subsequently fed into the grinding cavity of the grinding machine to be further treated. According to the invention, the efficiency of treating the caked powder by the subsequent grinding structure is improved through pretreatment of the powder caked powder.

Description

Technical Field

[0001] The present invention relates to the technical field of putty powder grinding, and particularly to a feeding mechanism for a grinding machine used in the production of putty powder. Background Art

[0002] Putty powder, the main components of which are talcum powder and glue, is used as a base material for repairing and leveling walls after being prepared and stirred. It is an indispensable building decoration material.

[0003] Nowadays, at least one production process of putty powder is to obtain it by successively crushing, grinding, and proportioning and mixing various raw materials. The putty powder after proportioning and mixing is then packed by a packing machine for warehousing or sales. At present, due to the different production efficiencies of each process step, each business owner will build several storage bins or storage tanks in the factory area to store the primary materials (hereinafter referred to as materials) obtained after each process step. When the materials in the storage bin are needed, a hoist (such as a bucket elevator) is used to send the materials to the equipment of the next process step to complete the transfer.

[0004] However, when the powder formed after grinding the materials is transported or stored, it is easy to absorb moisture in the air and cause the powder to agglomerate. The agglomerated powder will affect the subsequent very crucial proportioning and mixing work. For example, segregation and other uneven mixing phenomena are likely to occur during the stirring process of proportioning and mixing. Therefore, it is necessary to eliminate the phenomenon of powder agglomeration before proportioning and mixing. A grinding machine is one of the effective devices that can eliminate agglomeration. However, the current grinding machine is not ideal in dealing with agglomerated powder. For example, when dealing with agglomerated powder of different sizes simultaneously, it often needs to be based on the processing duration of the larger agglomerated powder, so the efficiency is low.

[0005] Secondly, when dealing with agglomerated powder, in order to ensure the processing effect, a heating device needs to be equipped to dry the agglomerated powder in the grinding chamber. However, due to the relatively sealed environment of the grinding chamber, the moisture generated during the drying process cannot be discharged. In the long run, it will not be possible to ensure that the grinding chamber remains relatively dry, which is likely to affect the work of eliminating agglomeration. Therefore, a blower is usually set at the discharge end of the grinding machine (such as at the discharge pipe) to assist in discharging the gas in the grinding chamber. However, after the grinding chamber is heated by the heating device, the internal gas still maintains a certain temperature when discharged (that is, this part of the hot gas still has available space). If it is directly discharged by the blower, it is also a waste of heat energy.

[0006] In summary, it is necessary to improve the existing grinding machine to solve the above problems. Summary of the Invention

[0007] Aiming at the deficiencies of the existing technology, the purpose of the present invention is to provide a grinding machine for putty powder production, aiming to solve the problems presented in the above background technology.

[0008] The technical solution of the present invention is realized as follows: A grinding machine for putty powder production includes a grinding machine body, which has an abrasive cavity, a feed pipe and a discharge pipe communicating with the abrasive cavity; An abrasive structure is arranged in the abrasive cavity, and the abrasive end of the abrasive structure abuts against the bottom wall of the abrasive cavity; It also includes a feeding mechanism installed on the grinding machine body, and the feeding mechanism at least includes: A feeding machine body is installed on the grinding machine body; At least two primary grinding cavities formed on the feeding machine body, and are connected to the feed pipe through a discharge pipe; A feeding hopper is installed on the feeding machine body and is used for feeding materials into the primary grinding cavity; A heat exchange cavity is formed on the feeding machine body, and is arranged at an interval from the primary grinding cavity, and a hot gas inlet and a hot gas outlet communicating with the heat exchange cavity are provided on the feeding machine body; Among them, a crushing structure and a filtering structure are arranged in each primary grinding cavity, and the crushing structure and the filtering structure can be controlled by a driving structure to rotate synchronously in a relatively reverse manner.

[0009] Preferably: The driving structure includes: A first driving wheel is rotatably arranged on the feeding machine body and is connected to the crushing structure through a first transmission shaft; A first transmission belt is connected between the first driving wheels; A second driving wheel is rotatably arranged on the feeding machine body and drives the filtering structure to rotate through a transmission component; A second transmission belt is connected between the second driving wheels; A slide rail is fixedly arranged on the feeding machine body and is located between adjacent first driving wheels and / or between adjacent second driving wheels; A synchronization structure can be slidably connected to the slide rail, and has a through hole for the first transmission belt and the second transmission belt to move, and a clamping structure that can be controlled by an electromagnetic component is arranged in the through hole; Among them, any first driving wheel or any second driving wheel can be controlled by a first motor to rotate clockwise or counterclockwise.

[0010] Preferably: The synchronization structure includes: A synchronization body has a sliding cavity for the slide rail to pass through; The through hole is composed of a first through hole and a second through hole arranged at intervals on the synchronization body; A receiving groove is formed on the inner walls on both sides of the through hole; A clamping block is slidably connected in the receiving groove; Among them, the electromagnetic component includes a housing installed on the synchronous body and located on both sides of the through hole. A piston shaft connected to a clamping block is slidably connected in the housing. The piston shaft is connected to the housing through a return spring, and an electromagnet is installed in the housing.

[0011] Preferably, the transmission component includes: A first transmission gear, which is connected to the second driving wheel through a second transmission shaft and is rotatably arranged in the feed machine body; A second transmission gear, which is installed on the filtering structure and meshes with the first transmission gear.

[0012] By adopting the above technical solutions: The grinding machine of the present invention is provided with a feeding mechanism, and the initial grinding cavity on the feeding mechanism is used to pre-treat the caked powder first. The powder meeting the treatment standard then enters the discharge pipe through the filtering structure and enters the abrasive cavity of the grinding machine. Therefore, the specifications (referring to volume particle size) of the powder entering the abrasive cavity are relatively uniform. Moreover, since the caked powder is pre-treated in the initial grinding cavity first, when these caked powders with uniform specifications enter the abrasive cavity, they can be completely processed by the abrasive structure within the same time. Therefore, there is no need to consider the too large difference in the specifications of the caked powder and extend the grinding time of the abrasive structure, thereby improving the production efficiency.

[0013] Secondly, the present invention is provided with a plurality of initial grinding cavities, and the crushing structures in each initial grinding cavity are synchronously controlled by the driving structure. After the driving structure is started, more caked powders can be pre-treated, thus ensuring the feeding of the abrasive cavity; Moreover, the present invention can also make the driving structure control the crushing structure and the filtering structure to rotate relatively in opposite directions by using the synchronous structure, thereby improving the pre-treatment efficiency of the caked powder.

[0014] Preferably, the filtering structure includes a filter cylinder rotatably arranged in the initial grinding cavity. The filter cylinder divides the initial grinding cavity into a discharge cavity and a crushing cavity which are coaxially arranged at intervals. The discharge cavity is connected to the feed pipe through a discharge pipe, and the crushing cavity is communicated with the feeding hopper; Among them, filter holes are distributed on the circumferential side wall of the filter cylinder, and a pushing plate is fixedly connected to the side wall of the filter cylinder. The first transmission gear is fixed on the filter cylinder; The crushing structure includes a stirring disc connected to the first transmission shaft, and a plurality of scattering pieces capable of moving around the filter cylinder are fixedly connected at intervals on the stirring disc.

[0015] By adopting the above technical solutions: The present invention is provided with a pushing plate on the filtering structure. Therefore, when the scattering pieces of the crushing structure and the filter cylinder rotate relatively in opposite directions, the pushing plate can guide the powder in the initial grinding cavity to move towards the scattering pieces, thereby improving the pre-treatment efficiency of the caked powder.

[0016] Preferably, a plurality of drainage cavities are formed in the feeding machine body. A piston plate, which is controlled to move by a lifting control structure, is slidably connected to the drainage cavities. The piston plate divides each drainage cavity into an upper cavity and a lower cavity; A plurality of intake one-way valves and exhaust one-way valves are provided on the feeding machine body. Each intake one-way valve and each exhaust one-way valve are respectively communicated with the upper cavity or the lower cavity; Among them, the exhaust one-way valve is connected to the hot gas inlet through a heat return pipe.

[0017] Preferably, the lifting control structure includes: An equipment cavity is formed on the feeding machine body; At least two support seats are installed in the equipment cavity at intervals; At least two worm wheels are rotatably connected to the support seats through a third transmission shaft and are arranged at intervals; A worm is rotatably connected in the equipment cavity and can be controlled to rotate by a second motor. The worm is located between the worm wheels and cooperates with the worm wheels; A driving disc is installed on the third transmission shaft and is located on the side of the support seat away from the worm wheel; Among them, an eccentric slider is rotatably connected to the driving disc. A lifting rod, which is slidably connected to the slider, is slidably connected in the equipment cavity. A plurality of lifting shafts are fixedly connected to the lifting rod. Each lifting shaft respectively penetrates into the drainage cavity and is connected to the piston plate.

[0018] Preferably, a filter cavity is provided in the synchronizing body. An annular filter screen is provided in the filter cavity. The annular filter screen divides the filter cavity into a coaxial inner cavity and outer cavity; Among them, a limiting body is slidably connected in the filter cavity through a limiting spring. An air inlet, a sewage discharge port and an exhaust port communicated with the outer cavity are provided on the synchronizing body; the limiting body can be controlled to reciprocate in the filter cavity by a reciprocating control structure and the limiting spring; The heat return pipe includes a first pipe body connected between the exhaust one-way valve and the air inlet and a second pipe body connected between the exhaust port and the hot gas inlet.

[0019] Preferably, the reciprocating control structure includes: A transmission cavity is formed in the synchronizing body; A driving gear is rotatably connected in the transmission cavity through a fourth transmission shaft and can be controlled by a third motor installed on the synchronizing body; A transmission rod, one end of which is fixedly connected to the limiting body, and the other end of which penetrates into the transmission cavity and is provided with a rack that can be engaged with the driving gear; When the driving gear is engaged with the rack, the limiting body is controlled by the transmission rod to open the sewage discharge port and close the exhaust port; when the driving gear is separated from the rack, the limiting body is controlled by the limiting spring to close the sewage discharge port and open the exhaust port.

[0020] Preferably, the abrasive structure includes: A support plate, installed at the top of the abrasive chamber; A support shaft, rotatably connected to the support plate; A mounting plate, connected to the support shaft through a connecting shaft; Wherein, a plurality of grinding balls are fixedly connected to the mounting plate; a driven gear is fixedly connected to the support shaft, and a linkage rod is longitudinally slidably connected to the grinding machine body. One end of the linkage rod penetrates into the drainage chamber and is connected to the piston plate, and a transmission rack meshing with the driven gear is provided on the linkage rod.

[0021] By adopting the above technical solution: a drainage chamber is additionally provided on the feeding body of the present invention. When the lifting control structure controls the piston plate in the drainage chamber to reciprocate up and down in the drainage chamber, the lower chamber can suck the hot air in the abrasive chamber and send it to the heat exchange chamber, thereby realizing waste heat recovery. When the hot air is sent into the heat exchange chamber, the powder in the primary grinding chamber can be heat-exchanged by the heat exchange chamber, which can cooperate with the crushing structure for the pretreatment of the agglomerated powder and improve the efficiency; secondly, the upper chamber of the present invention can suck the hot air in the equipment chamber and send it into the heat exchange chamber, and also recycle the heat generated by the operation of the second motor.

[0022] Meanwhile, when the hot air in the abrasive chamber is evacuated, a negative pressure is formed in the abrasive chamber, and the abrasive chamber is communicated with the primary grinding chamber through the discharge pipe and the feed pipe. Therefore, the powder in the primary grinding chamber can enter the abrasive chamber more efficiently by relying on its own gravity and the negative pressure formed in the abrasive chamber.

[0023] The present invention also provides a filter chamber in the synchronizer body. The hot air discharged from the drainage chamber is first filtered through the filter chamber and then sent into the heat exchange chamber, so as to avoid impurities from entering the heat exchange chamber and adhering to the inner wall of the heat exchange chamber, thereby affecting the heat exchange effect on the primary grinding chamber.

[0024] In addition, the present invention can control the start of the abrasive structure during the reciprocating lifting movement of the fluid guiding body by means of the linkage rod. Therefore, the driver for driving the abrasive structure to operate independently is omitted. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings required for the description of the embodiments or the prior art. Obviously, the following drawings are only some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can be obtained based on these drawings.

[0026] Figure 1 It is a schematic structural diagram of Specific Embodiment 1 of the present invention; Figure 2 For Figure 1 the top view in Figure 3 For Figure 2 the A-A cross-sectional view in Figure 4 is the structural schematic diagram of the abrasive structure in Specific Embodiment 1 of the present invention; Figure 5 For Figure 3 the B-B cross-sectional view in Figure 6 For Figure 3 the enlarged view of part A in Figure 7 is the structural schematic diagram of the synchronization structure in Specific Embodiment 1 of the present invention; Figure 8 For Figure 6 the C-C cross-sectional view in Figure 9 is the structural schematic diagram of Specific Embodiment 2 of the present invention; Figure 10 For Figure 9 the enlarged view of part C in Figure 11 For Figure 9 the D-D cross-sectional view in Figure 12 For Figure 9 the enlarged view of part D in Figure 13 For Figure 11 the E-E cross-sectional view in Figure 14 is the structural schematic diagram of the synchronizer in Specific Embodiment 2 of the present invention. Specific Embodiments

[0027] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all of the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.

[0028] Embodiment 1: As shown in Figure 1 , Figure 3 and Figure 5As shown in the figure, the present invention discloses a grinder for the production of putty powder, including: a grinding body 10, having an abrasive chamber 100, a feed pipe 101 and a discharge pipe 102 communicating with the abrasive chamber 100. A discharge valve 102a is installed on the discharge pipe 102 for controlling discharge. An outlet chamber 103 communicating the discharge pipe 102 and the abrasive chamber 100 is formed in the grinding body 10. A discharge screen 104 is provided on the outlet chamber 103. The bottom of the abrasive chamber 100 is set as a curved surface. Specifically, the abrasive chamber 100 of this embodiment consists of a bottom chamber 100a located at the bottom and communicating with each other, and a communication chamber 100b communicating with the bottom chamber 100a and the feed pipe 101. The bottom surface of the bottom chamber 100a is set as a curved surface. The outlet chamber 103 communicates with the bottom chamber 100a. The powder material enters the communication chamber from the feed pipe and drops into the bottom chamber 100a. After the treatment is completed, the discharge valve is opened, and the powder material is discharged through the discharge screen 104 from the outlet chamber and the discharge pipe 102. The most preferred setting of the outlet chamber 103 in this embodiment is at the lower part of the bottom chamber 100a; Reference Figure 1 , Figure 3 In this embodiment, a heater 105 is further installed on the grinding body 10 for heating the bottom chamber.

[0029] Reference Figures 3 - 5 In this embodiment, the abrasive structure is arranged in the abrasive chamber 100, and the abrasive end of the abrasive structure abuts against the bottom wall of the abrasive chamber. It consists of an abrasive gear 20, an abrasive support shaft 21 that supports the rotation of the abrasive gear 20 and is rotatably connected to the abrasive chamber 100, and a grinding ball rack 22 fixedly connected to the abrasive support shaft 21. A plurality of grinding balls 23 are provided on one side of the grinding ball rack 22 close to the bottom chamber 100a. The abrasive gear 20 meshes with an abrasive rack 24. The abrasive rack 24 is slidably arranged on the grinder and is controlled to move up and down by a hydraulic cylinder 25. When the abrasive rack moves up and down, the support shaft 21 of the abrasive gear rotates through the void, and the grinding ball rack 22 is driven to swing around the support shaft, and the powder material in the bottom chamber is processed by the grinding balls 23.

[0030] Reference Figures 1 - 8 In this embodiment, it further includes a feeding mechanism installed on the grinding body 10. The feeding mechanism at least includes: A feeding body 30, installed on the grinding body 10; Three primary grinding chambers 31 formed on the feeding body 30 and connected to the feed pipe 101 through a discharge pipe 31a. In this embodiment, three primary grinding bodies 31b are connected to the feeding body 30, and the primary grinding chambers 31 are arranged in each primary grinding body 31b; A feeding hopper 32, installed on the feeding body 30 (primary grinding body 31b) and used for feeding the primary grinding chamber 31; The heat exchange chamber 33 is formed on the feeding body (primary grinding body 31b), is arranged at an interval from the primary grinding chamber 31, and a hot gas inlet 33a and a hot gas outlet 33b communicating with the heat exchange chamber 33 are arranged on the feeding body (primary grinding body 131b). A heat supply pipe can be connected to the hot gas inlet 33a, so that hot gas enters the heat exchange chamber and heats the primary grinding chamber 31; Wherein, a crushing structure and a filtering structure are arranged in each primary grinding chamber 31, and the crushing structure and the filtering structure can be controlled by a driving structure to rotate synchronously in a relatively reverse manner.

[0031] In this embodiment, the primary grinding chamber 31 and the heat exchange chamber 33 are two circular-section chambers arranged at an interval with the same axis. Specifically, the cross section of the primary grinding chamber 31 is circular, and the cross section of the heat exchange chamber 33 is annular.

[0032] In this embodiment: the driving structure includes: The first driving wheel 41 is rotatably arranged on the feeding body (primary grinding body 31b) and is connected to the crushing structure through a first transmission shaft 41a; The first transmission belt 41b is connected between the first driving wheels 41 in a transmission manner; The second driving wheel 42 is rotatably arranged on the feeding body (primary grinding body 31b, and the second driving wheel 42 is arranged at the bottom of the primary grinding body 31b), and drives the filtering structure to rotate through a transmission component; The second transmission belt 42a is connected between the second driving wheels 42 in a transmission manner; The slide rail 43 is fixedly arranged on the feeding body (primary grinding body 31b), and is located between adjacent first driving wheels 41 and between adjacent second driving wheels 42; The synchronization structure 44 can be slidably connected to the slide rail 43, and has a through hole for the first transmission belt 41b and the second transmission belt 42b to move, and a clamping structure that can be controlled by an electromagnetic component is arranged in the through hole; Wherein, any first driving wheel 41 or any second driving wheel 42 can be controlled by the first motor 45 to rotate clockwise or counterclockwise. In this embodiment, the first motor 45 controls the first driving wheel 41 to rotate.

[0033] In this embodiment: the synchronization structure 44 includes: The synchronization body 440 has a sliding cavity 441 for the slide rail 43 to pass through; The through hole is composed of a first through hole 44a and a second through hole 44b arranged at intervals on the synchronization body 440; The accommodating groove is formed on the inner walls on both sides of the through hole; The clamping block 442 is slidably connected in the accommodating groove; The electromagnetic assembly includes a shell 443 mounted on the synchronization body 440 and located on both sides of the through-hole, a piston shaft 444 slidably connected to the clamping block 442 in the shell 443, the piston shaft 444 is connected to the shell 443 through a reset spring 445, and an electromagnet 446 is installed in the shell. In this embodiment, a magnet 447 with a magnetic pole opposite to that of the electromagnet 446 is provided on the piston shaft 444. When the electromagnet is energized, the piston shaft interacts away from the electromagnet and makes the clamping block close to the transmission belt. On the contrary, the piston shaft is driven away from the transmission belt by the reset spring. It is worth mentioning that in order to avoid damaging the teeth on the transmission belt, the size of the clamping block does not exceed the size between two adjacent teeth of the transmission belt, so that when the clamping block is close to the transmission belt, it can be located between the adjacent teeth of the transmission belt.

[0034] In this embodiment: the transmission assembly includes: a first transmission gear 51, connected to the second driving wheel 42 through a second transmission shaft 52, and rotatably disposed in the feed body (primary grinding body 31b); The second transmission gear 53 is mounted on the filter structure and meshes with the first transmission gear 51. The second transmission gear 53 is rotatably disposed on the primary grinding body via a limiting ring 53a.

[0035] In this embodiment, the filtering structure includes a filter cartridge 60 rotatably arranged in the primary grinding chamber 31, and the filter cartridge 60 divides the primary grinding chamber 31 into a discharge chamber and a crushing chamber coaxially arranged at intervals, the discharge chamber is connected to the feed pipe through the discharge pipe 31a, and the crushing chamber is connected to the feeding hopper 32; wherein, filter holes (which may be a cylindrical structure woven around a filter screen) are distributed on the circumferential side wall of the filter cartridge 60, and a push plate 60a is fixedly connected to the side wall of the filter cartridge 60, the first transmission gear 51 is fixed on the filter cartridge 60, and the filter cartridge 60 is connected to the second transmission gear 52 through the annular rotating portion 61a, and a sealing ring may be provided at the matching position of the annular rotating portion 61a and the primary grinding body; The crushing structure includes a stirring disk 62 connected to the first transmission shaft 41 a , and a plurality of bulk pieces 63 that can move around the filter cartridge 60 are fixedly connected to the stirring disk 62 at intervals.

[0036] In this embodiment, the first transmission gear 51 is also meshed with a third transmission gear 54 , and the third transmission gear 54 is connected to an anti-blocking disk 55 located between the feed hopper and the primary grinding chamber through a transmission shaft, and an anti-blocking blade 56 is provided on the anti-blocking disk 55 .

[0037] refer to Figures 1 - 8, The principle of this embodiment is as follows: The agglomerated powder is poured from the feed hopper and enters the primary grinding chamber for primary grinding. During primary grinding, the first motor controls the rotation of the stirring disc, and the agglomerated powder is broken up by the scattering pieces. The qualified powder is screened by the filter cylinder and enters the discharge chamber, and is sent into the abrasive chamber through the discharge pipe and the feed pipe. The abrasive structure in the abrasive chamber is controlled by the hydraulic cylinder to further process the powder. After the processing is completed, the powder passes through the discharge screen at the discharge chamber and is discharged through the discharge pipe, completing the elimination of powder agglomeration.

[0038] When the agglomerated powder is in the primary grinding chamber, hot air can be provided to the heat exchange chamber through an externally connected heating pipe to heat the powder in the primary grinding chamber, so as to assist the crushing structure to break up the agglomerated powder faster. At the same time, to further improve the efficiency, when the first motor controls the crushing structure to start through the first driving wheel, the electromagnet on the synchronous structure can be energized, and the clamping block clamps the first transmission belt and the second transmission belt. In this way, it can be realized that the first motor controls the first driving wheel and the second driving wheel at the same time, and the second driving wheel controls the rotation of the filter cylinder on the primary grinding body. Since the second driving wheel drives the filter cylinder to rotate by means of the first transmission gear and the second transmission gear, the rotation directions of the filter cylinder and the stirring disc are opposite, and the pushing plate arranged on the filter cylinder can enable the crushing structure to process the agglomerated powder faster, so as to improve the processing efficiency.

[0039] It is worth mentioning that: In this embodiment, an anti-blocking disc is also driven by a third transmission gear. The anti-blocking disc is located at the connection position between the feed hopper and the primary grinding chamber. When the second driving wheel rotates, the second transmission gear is driven to rotate through the first transmission gear, and the anti-blocking disc is controlled to rotate. The anti-blocking blades on the anti-blocking disc can prevent the agglomerated powder from blocking at the connection between the feed hopper and the primary grinding chamber, ensuring normal feeding.

[0040] Embodiment 2, the difference from Embodiment 1 is as follows: As Figures 9 - 14 shown, in this embodiment: A plurality of drainage chambers 70 are formed in the feed body 30. The drainage chambers 70 are slidably connected with piston plates 71 controlled to move by a lifting control structure. The piston plates 71 divide each drainage chamber 70 into an upper chamber 70a and a lower chamber 70b; A plurality of intake one-way valves 72 and exhaust one-way valves 73 are provided on the feed body 30. Each intake one-way valve 72 and each exhaust one-way valve 73 are respectively communicated with the upper chamber 70a or the lower chamber 70b; Among them, the exhaust one-way valve 73 is connected to the hot air inlet through a heat return pipe.

[0041] In this embodiment: The lifting control structure includes: The equipment chamber 80 is formed on the feed body 30. The top of the feed body 30 is provided with an air guiding port 80a connected to the equipment chamber; At least two support seats 81 are installed in the equipment cavity 80 at intervals; At least two worm wheels 82 are rotatably connected to the support seats 81 through a third transmission shaft 82a and are arranged at intervals; A worm 83 is rotatably connected in the equipment cavity 80 and can be controlled to rotate by a second motor 83a. The worm 83 is located between the worm wheels 82 and cooperates with the worm wheels 82; A driving disk 84 is installed on the third transmission shaft 82a and is located on the side of the support seat 81 away from the worm wheel 82; Wherein, a slider 85 is eccentrically rotatably connected to the driving disk 84. A lifting rod 86 (the lifting rod 86 is horizontally slidably connected to the slider 85) that is slidably connected to the slider 85 is slidably connected in the equipment cavity 80. A plurality of lifting shafts 87 are fixedly connected to the lifting rod 86, and each lifting shaft 87 respectively penetrates into the drainage cavity 70 and is connected to the piston plate 71.

[0042] In this embodiment, a support rail 86a is provided in the equipment cavity, and the support rail is for the two ends of the lifting rod 86 to slide.

[0043] In this embodiment: A filter cavity is provided in the synchronizer 440. An annular filter screen 9 is provided in the filter cavity, and the annular filter screen 9 divides the filter cavity into a coaxial inner cavity 90 and an outer cavity 91; Wherein, a limiting body 93 is slidably connected in the filter cavity through a limiting spring 92. An air inlet 94, a sewage discharge port 95 communicating with the outer cavity 91 and an exhaust port 96 communicating with the inner cavity 91 are provided on the synchronizer 440; the limiting body 93 can be controlled by a reciprocating control structure and the limiting spring 92 to reciprocate in the filter cavity; The heat recovery pipe includes a first pipe body 741 connected between the exhaust check valve 73 and the air inlet 94 and a second pipe body 742 connected between the exhaust port 96 and the hot gas inlet 33a. A chamber 30a is provided on the feeding machine body 30, and the chamber 30a is connected to the first pipe body 741 to enable the gas discharged from the exhaust check valve to enter the first pipe body from the chamber.

[0044] In this embodiment: The reciprocating control structure includes: A transmission cavity 97 is formed in the synchronizer 440; A driving gear 971 is rotatably connected in the transmission cavity 97 through a fourth transmission shaft 972 and can be controlled by a third motor 973 installed on the synchronizer 440; A transmission rod 974 has one end fixedly connected to the limiting body 93, and the other end penetrates into the transmission cavity 97 and is provided with a rack 975 that can mesh with the driving gear 971; When the driving gear 971 meshes with the rack 975, the limiting body 93 is controlled by the transmission rod 974 to open the sewage outlet 95 and close the exhaust port 96; when the driving gear 971 is separated from the rack 975, the limiting body 93 is controlled by the limiting spring 92 to close the sewage outlet 95 and open the exhaust port 96.

[0045] In this embodiment, a sewage pipe 977 is connected to the sewage outlet. A baffle 930 is provided on one side of the limiting body 93 close to the sewage outlet 95. A dislocation port 931 is provided on the baffle 930. When the limiting body 93 descends, the dislocation port 931 communicates with the sewage outlet 95. When the limiting body 93 ascends, the dislocation port 931 is misaligned with the sewage outlet 95, and at this time, the baffle 930 closes the sewage outlet.

[0046] In this embodiment: The abrasive structure includes: A support plate 990, installed at the top of the abrasive cavity; A support shaft 991, rotatably connected to the support plate 990; A mounting plate 992, connected to the support shaft 991 through a connecting shaft 993; Wherein, a plurality of grinding balls 994 are fixedly connected to the mounting plate 992; a driven gear 995 is fixedly connected to the support shaft 991, and a linkage rod 996 is longitudinally slidably connected to the grinding body 101. One end of the linkage rod 996 penetrates into the drainage cavity and is connected to the piston plate 71, and a transmission rack 997 meshing with the driven gear 995 is provided on the linkage rod 996.

[0047] Reference Figures 9 - 14 , the principle of this embodiment is: In order to improve the utilization rate of heat in this embodiment, when the second motor drives the worm, the worm drives the worm wheel to rotate, and the worm wheel drives each driving disk to rotate, so as to Figure 13 take... as an example. When the driving disk rotates, the height of the slider changes, and the lifting rod is controlled to rise or fall. When the lifting rod rises, the piston plate is controlled to rise through the lifting shaft, and the lower cavity inhales hot air from the abrasive cavity. When the lifting rod falls, the piston plate is controlled to fall through the lifting shaft, and the lower cavity discharges the hot air from the exhaust check valve; similarly, when the lifting rod falls, the upper cavity inhales the hot air generated by the operation of the second motor from the equipment cavity, and when the lifting rod rises, the upper cavity discharges the hot air from the exhaust check valve; The hot air discharged from the upper cavity and the lower cavity is sent into the filter cavity of the synchronous body, and after being filtered by the annular filter screen, it is sent into the heat exchange cavity from the exhaust port, and the primary grinding cavity is heated, thereby completing the recovery of waste heat.

[0048] It is worth mentioning that: The filter cavity provided in this embodiment can filter impurities to prevent impurities from entering and covering the inner wall of the heat exchange cavity and affecting the heat exchange effect on the primary grinding cavity.

[0049] Secondly, when the third motor controls the driving gear to rotate, the driving gear meshes with the rack to control the limiting body to close the exhaust port and open the sewage discharge port. At this time, the impurities in the filter chamber are discharged through the sewage discharge port. After the driving gear is separated from the rack, the limiting body is controlled by the limiting spring to rise and open the exhaust port while closing the sewage discharge port. At this time, the hot air can normally enter the heat exchange chamber. Therefore, this embodiment can clean the filter chamber by itself to ensure the filtering effect.

[0050] The above are only the preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A feeding mechanism for a grinder used in putty powder production, characterized in that: Comprising: A feeding body (30), mounted on the grinding body (10) of the grinder; At least two primary grinding cavities (31) formed on the feeding body (30), and connected to the feeding pipe (101) of the grinder through a discharge pipe (31a); A feeding hopper (32), mounted on the feeding body (30) and used for feeding the primary grinding cavity (31a); A heat exchange cavity (33), formed on the feeding body (30), spaced from the primary grinding cavity (31), and provided with a hot gas inlet (33a) and a hot gas outlet (33b) communicating with the heat exchange cavity (33) on the feeding body (30); Wherein, a crushing structure and a filtering structure are provided in each primary grinding cavity (31), and the crushing structure and the filtering structure can be controlled by a driving structure to rotate synchronously in a relatively reverse manner.

2. The feeding mechanism of a grinder for putty powder production according to claim 1, characterized in that: The driving structure includes: A first driving wheel (41), rotatably provided on the feeding body (30) and connected to the crushing structure through a first transmission shaft (41a); A first transmission belt (41b), drivingly connected between the first driving wheels (41); A second driving wheel (42), rotatably provided on the feeding body (30) and driving the filtering structure to rotate through a transmission component; A second transmission belt (42a), drivingly connected between the second driving wheels (42); A slide rail (43), fixedly provided on the feeding body (30) and located between adjacent first driving wheels (41) and / or between adjacent second driving wheels (42); A synchronization structure (44), capable of slidingly connecting with the slide rail (43), having a through hole for the first transmission belt (41b) and the second transmission belt (42b) to move, and provided with a clamping structure in the through hole that can be controlled by an electromagnetic component; Wherein, any first driving wheel (41) or any second driving wheel (42) can be controlled by a first motor (45) to rotate clockwise or counterclockwise.

3. The feeding mechanism of a grinder for putty powder production according to claim 2, characterized in that: The synchronization structure (44) includes: A synchronization body (440), having a sliding cavity (441) for the slide rail (43) to pass through; A through hole, composed of a first through hole (44a) and a second through hole (44b) spaced on the synchronization body (440); A receiving groove, formed on the inner walls on both sides of the through hole; A clamping block (442), slidably connected in the receiving groove; Wherein, the electromagnetic component includes a housing (443) mounted on the synchronization body (440) and located on both sides of the through hole, a piston shaft (444) slidably connected in the housing (443) and connected to the clamping block (442), the piston shaft (444) is connected to the housing (443) through a return spring (445), and an electromagnet (446) is installed in the housing.

4. The feeding mechanism of a grinder for putty powder production according to claim 2 or 3, characterized in that: The transmission component includes: A first transmission gear (51), connected to the second driving wheel (42) through a second transmission shaft (52) and rotatably provided in the feeding body (30); A second transmission gear (53), mounted on the filtering structure and meshing with the first transmission gear (51).

5. The feeding mechanism of a grinder for putty powder production according to claim 4, characterized in that: The filtering structure includes a filter cylinder (60) rotatably arranged in the primary grinding chamber (31). The filter cylinder (60) divides the primary grinding chamber (31) into a discharge chamber and a crushing chamber which are coaxially spaced. The discharge chamber is connected to the feed pipe (101) through a discharge pipe (31a), and the crushing chamber communicates with the feed hopper (32). Among them, filter holes are distributed on the circumferential side wall of the filter cylinder (60), and a pushing plate (60a) is fixedly connected to the side wall of the filter cylinder (60). The first transmission gear (51) is fixed on the filter cylinder (60). The crushing structure includes a stirring disk (62) connected to the first transmission shaft (41a), and a plurality of scattering sheets (63) capable of moving around the filter cylinder (60) are fixedly connected to the stirring disk (62) at intervals.

6. The feeding mechanism of a grinder for putty powder production according to claim 3, characterized in that: A plurality of drainage chambers (70) are formed in the feed body (30). A piston plate (71) controlled to move by a lifting control structure is slidably connected in the drainage chamber (70). The piston plate (71) divides each drainage chamber (70) into an upper chamber (70a) and a lower chamber (70b). A plurality of intake one-way valves (72) and exhaust one-way valves (73) are provided on the feed body (30). Each intake one-way valve (72) and each exhaust one-way valve (73) communicate with the upper chamber (70a) or the lower chamber (70b) respectively. Among them, the exhaust one-way valve (73) is connected to the hot gas inlet through a heat recovery pipe.

7. The feeding mechanism of a grinder for putty powder production according to claim 6, characterized in that: The lifting control structure includes: An equipment chamber (80) formed on the feed body (30). At least two support seats (81) installed in the equipment chamber (80) at intervals. At least two worm wheels (82) rotatably connected to the support seats (81) through a third transmission shaft (82a) and arranged at intervals. A worm (83) rotatably connected in the equipment chamber (80) and capable of being controlled to rotate by a second motor (83a). The worm (83) is located between the worm wheels (82) and cooperates with the worm wheels (82). A driving disk (84) installed on the third transmission shaft (82a) and located on the side of the support seat (81) away from the worm wheel (82). Among them, a slider (85) is eccentrically rotatably connected to the driving disk (84). A lifting rod (86) slidably connected to the slider (85) is slidably connected in the equipment chamber (80). A plurality of lifting shafts (87) are fixedly connected to the lifting rod (86). Each lifting shaft (87) penetrates into the drainage chamber (70) and is connected to the piston plate (71).

8. The feeding mechanism of a grinder for putty powder production according to claim 6 or 7, characterized in that: A filter chamber is provided in the synchronizer (440). An annular filter screen (9) is provided in the filter chamber. The annular filter screen (9) divides the filter chamber into a coaxial inner chamber (90) and an outer chamber (91). Among them, a limiting body (93) is slidably connected in the filter chamber through a limiting spring (92). An air inlet (94), a sewage discharge port (95) communicating with the outer chamber (91) and an exhaust port (96) communicating with the inner chamber (91) are provided on the synchronizer (440). The limiting body (93) can be controlled to reciprocate in the filter chamber by a reciprocating control structure and the limiting spring (92). The heat regenerating pipe includes a first pipe body (741) connected between the exhaust check valve (73) and the air inlet (94), and a second pipe body (742) connected between the exhaust port (96) and the hot air inlet (33a).

9. The feeding mechanism of a grinder for putty powder production according to claim 8, characterized in that: The reciprocating control structure includes: a transmission cavity (97) formed within the synchronizing body (440); a driving gear (971) rotatably connected within the transmission cavity (97) through a fourth transmission shaft (972) and controllable by a third motor (973) mounted on the synchronizing body (440); a transmission rod (974) having one end fixedly connected to the limiting body (93) and the other end extending into the transmission cavity (97) and provided with a rack (975) capable of meshing with the driving gear (971); When the driving gear (971) meshes with the rack (975), the limiting body (93) is controlled by the transmission rod (974) to open the sewage discharge port (95) and close the exhaust port (96); when the driving gear (971) is disengaged from the rack (975), the limiting body (93) is controlled by the limiting spring (92) to close the sewage discharge port (95) and open the exhaust port (96).

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