Grinding device for defoaming agent production

Abstract

The invention discloses a grinding device for defoaming agent production, and belongs to the technical field of defoaming agent production. In order to solve the problem that an existing product cannot directly treat solid raw materials, the technical scheme is provided, the controller comprises a controller body serving as a control area and a machining assembly serving as a machining area, and the machining assembly is located at the top of the controller body. The pretreatment mechanism is additionally arranged on the top cover to crush solid raw materials fed into the equipment, other devices needing to be configured in the prior art are replaced, equipment integration is achieved, the raw material treatment procedure steps are reduced, the raw material treatment efficiency is improved, and the production cost is reduced. And the pretreatment mechanism is matched with the gas guide mechanism to convey flowing gas, so that the gas can be conveniently sprayed out from the scraping plate piece, further scattering treatment on the ground raw materials in the mortar is realized, the temperature of the raw materials can be reduced along with release of the gas to the raw materials, and the raw materials are prevented from going bad or caking due to overheating.

Description

Technical Field

[0001] The present invention relates to the technical field of antifoaming agent production, and particularly to a grinding device for antifoaming agent production. Background Art

[0002] An antifoaming agent is an additive for eliminating foam. During the production and application processes in fields such as coatings, textiles, medicine, fermentation, papermaking, water treatment, and petrochemical industry, a large amount of foam will be generated, which will affect the product quality and production process. Based on the inhibition and elimination of foam, a specific amount of antifoaming agent is usually added during production, which can reduce the surface tension of water, solution, suspension, etc., prevent foam formation, or reduce or eliminate the original foam. In the production process of antifoaming agents, solid raw materials need to be crushed and ground. In the preparation of antifoaming agents in the laboratory, a mortar grinder is usually used to grind the solid raw materials of antifoaming agents. For example, a Chinese patent with the authorization announcement number CN211964484U discloses a mortar grinder, which includes a grinder main body, a mortar main body, a grinding pestle, a scraping device, and a top cover. The mortar main body and the top cover are both arranged on the grinder main body. The grinding pestle and the scraping device are both arranged on the top cover and extend into the grinding cavity of the mortar main body. A temperature sensor is arranged on the scraping device.

[0003] The technical solution in the above patent document cannot grind solid raw materials with a relatively large volume during actual operation. Therefore, the solid raw materials need to be pre-crushed by other devices before entering this equipment, which increases the operation steps and affects the processing efficiency of the raw materials. Summary of the Invention

[0004] In order to overcome the above-mentioned defects of the prior art, the present invention provides a grinding device for antifoaming agent production. By adding a pretreatment mechanism to the top cover, the solid raw materials put into the equipment are crushed, replacing other devices required in the prior art, realizing the integration of the equipment, reducing the process steps of raw material processing, improving the processing efficiency of raw materials, and the pretreatment mechanism cooperates with the air guiding mechanism to transmit the flowing gas, so as to facilitate the gas to be ejected from the scraping member, realizing further dispersion of the raw materials being ground in the mortar, and reducing the temperature of the raw materials as the gas is released from the raw materials, preventing the raw materials from deteriorating or caking due to overheating, so as to solve the problems raised in the above background art.

[0005] To achieve the above object, the present invention provides the following technical solutions:

[0006] A grinding device for producing defoamer, including a controller body serving as a control area and a processing assembly serving as a processing area. Among them, the processing assembly is located on the top of the controller body. The processing assembly includes an L-shaped seat arranged on the outer wall of the top of the controller body. A locking member and a carrier plate are installed on the L-shaped seat. Among them, a mortar is placed on the carrier plate, and a processing component is arranged above the mortar, and a housing cover is wrapped outside the processing component;

[0007] The processing component includes a substrate, an auxiliary component, a top cover, a pretreatment mechanism, a gas guiding mechanism, a pressure regulating device, a pestle, a scraping component, a pressure relief valve, a lateral regulating component and a longitudinal regulating component. Among them, the substrate is movably connected to the L-shaped seat through a pin shaft. The top cover is located below the substrate, and the substrate and the top cover are connected through an auxiliary component. The pretreatment mechanism, the gas guiding mechanism and the pressure regulating device are all installed on the top of the top cover, and the pretreatment mechanism and the gas guiding mechanism are communicated with each other. The pestle is located below the top cover and is connected to the pressure regulating device. The scraping component is located on the side of the pestle and is fixedly connected to the bottom shell wall of the top cover through a bolt, and the scraping component is communicated with the gas guiding mechanism. The lateral regulating component and the longitudinal regulating component are both arranged on the substrate and are movably connected to the top cover.

[0008] As a further scheme of the present invention, a circular hole is opened at the center of the bottom of the L-shaped seat, the carrier plate is rotatably connected in the circular hole, the locking member includes a cavity plate fixedly connected to the front side shell wall of the L-shaped seat, a regulating screw rod is rotatably connected inside the cavity plate, the front end of the regulating screw rod penetrates through the corresponding side wall of the cavity plate and is provided with a handle, and a pressing plate is slidably connected inside the cavity plate, and the pressing plate is threadedly connected with the regulating screw rod;

[0009] The housing cover is arranged on the outer wall of the top of the substrate, and a notch is opened on the front side shell wall of the housing cover for facilitating the passage of the locking member.

[0010] As a further scheme of the present invention, there are two auxiliary components, which are distributed symmetrically left and right. The auxiliary component includes a slide rail fixedly connected to the outer wall of the bottom of the substrate through a bolt, a sliding sleeve is slidably connected on the slide rail, a telescopic plate is installed at the bottom of the sliding sleeve, and the output end of the telescopic plate is fixedly connected to the top cover;

[0011] The lateral regulating component includes an end block fixedly connected to the bottom shell wall of the substrate. A lateral screw rod is rotatably connected to the front side of the end block through a bearing. The front end of the lateral screw rod penetrates through the front side shell wall of the housing cover, and a regulating arm is threadedly connected to the lateral screw rod. The bottom of the regulating arm is installed on the top cover;

[0012] The longitudinal adjustment member includes a chute formed in the base plate. A notch is formed above the chute on the top shell wall of the shell cover. A slider is slidably connected in the chute. A threaded hole is provided at the center of the slider. A longitudinal lead screw is movably connected in the threaded hole. The top end of the longitudinal lead screw penetrates through the notch and is provided with a knob. The bottom end of the longitudinal lead screw is rotatably connected to the top cover through a bearing.

[0013] As a further scheme of the present invention, a hole is formed at the center of the top cover. Above the hole, a slot hole formed in the base plate and a passage hole formed in the shell cover are provided. The pressure adjustment device is arranged at the center of the top cover. The top of the pressure adjustment device penetrates through the slot hole and the passage hole. The top end of the pestle is inserted into the pressure adjustment device through the hole.

[0014] A pressure relief hole is formed in the top shell wall of the top cover. The pressure relief valve is installed in the pressure relief hole.

[0015] An arc-shaped notch is formed in the top cover. An arc-shaped transparent plate is installed in the arc-shaped notch. Above the arc-shaped notch, an observation window penetrating through the base plate and the shell cover is provided. An observation window is arranged in the observation window.

[0016] On the right side of the hole, a rectangular through groove is formed in the top cover. Above the rectangular through groove, a feed port penetrating through the base plate and the shell cover is provided. A cover plate is installed in the feed port through a connecting pin. The rectangular through groove and the feed port are communicated through a pretreatment mechanism.

[0017] As a further scheme of the present invention, the pretreatment mechanism includes a crushing component, a corrugated channel, a driving component, a blowing component and a transmission component. Among them, the blowing component is located behind the crushing component. The crushing component includes a frame box arranged in the rectangular through groove. The left and right sides of the inner wall of the top of the frame box are symmetrically provided with inclined plates. Below each inclined plate, a crushing roller is arranged inside the frame box. Below the two crushing rollers, a mesh plate is arranged inside the frame box, and the mesh plate is used for the scattered feeding of the crushed raw materials.

[0018] The crushing roller includes a hollow shaft and a crushing cylinder. Among them, the two ends of the hollow shaft respectively penetrate through the corresponding side walls of the frame box. The crushing cylinder is sleeved outside the hollow shaft, and the crushing cylinder is used for crushing solid raw materials. The front ends of the two hollow shafts are jointly provided with an integrating pipe, and the integrating pipe is rotatably connected to the hollow shaft.

[0019] The bottom of the corrugated channel is fixedly connected to the top shell wall of the frame box through bolts. The top of the corrugated channel is fixedly connected to the bottom shell wall of the base plate through bolts.

[0020] As a further solution of the present invention, the driving assembly is arranged on a bracket on the front outer wall of the box. A motor is installed on the bracket. A reciprocating lead screw is installed at the output end of the motor. A driving member is arranged at the rear end of the reciprocating lead screw. Driven members are respectively arranged on both sides of the driving member on corresponding hollow shafts. Among them, the driving member is in meshing transmission with the driven member on the right side, and the driving member and the driven member on the left side are linked through a chain;

[0021] An internally threaded ring is also threadedly connected to the reciprocating lead screw. A friction wheel is arranged on the front side of the driven member on the right side on the corresponding hollow shaft. A friction arm is arranged below the friction wheel.

[0022] As a further solution of the present invention, the air blowing assembly includes a U-shaped frame fixedly connected to the top cover by screws. Two through holes are symmetrically opened on the top shell wall of the U-shaped frame from left to right. A round rod is movably connected in each through hole. A pressing plate is fixedly connected to the bottom of the round rod. An airbag main body is arranged below the pressing plate on the top cover. And a connecting plate is fixedly connected to the top of the round rod by screws. An air guide pipe is installed on the front shell wall of each airbag main body. The front end of the air guide pipe is movably connected to the corresponding hollow shaft. And a heating wire main body is also sleeved on the air guide pipe;

[0023] A cam is installed on the outer ring at the rear end of each hollow shaft. A sliding block is slidably connected to the peripheral wall of the cam. The sliding block is connected to the connecting plate by screws.

[0024] As a further solution of the present invention, the transmission assembly includes a curved rod fixedly connected to the internally threaded ring. A single-sided wedge block is installed at the end of the curved rod away from the internally threaded ring. The single-sided wedge block is slidably connected to the top cover. A bent rod is arranged behind the single-sided wedge block. One end of the bent rod is fixedly connected to the mesh plate. The other end of the bent rod penetrates through the top cover and is rotatably connected with a ball. The ball is in rolling contact with the inclined surface of the single-sided wedge block. And a positioning ring and a return spring are sleeved on the bent rod below the top cover. Among them, the positioning ring is fixedly connected to the outer ring shell wall of the bent rod. The bottom end of the return spring is arranged on the positioning ring. The top end of the return spring is fixedly connected to the bottom shell wall of the top cover.

[0025] As a further solution of the present invention, the air guiding mechanism includes an air collecting box arranged on the front side of the pretreatment mechanism. The top shell wall of the air collecting box is provided with a ventilation opening and a gas guiding hole. The integration pipe is communicated with the gas guiding hole. A receiving groove located on the inner wall of the top of the air collecting box is opened around the bottom of the ventilation opening. A displacement plate is slidably connected in the receiving groove. A partition plate is arranged on the left side of the ventilation opening inside the air collecting box. A sliding plate located on the inner wall of the front side of the air collecting box is slidably connected to the front side of the partition plate. A sealing plate is installed at the left end of the sliding plate. The right end of the sliding plate is fixedly connected to an end plate. An extension plate is installed on the right side shell wall of the end plate. The right end of the extension plate passes through the corresponding side wall of the air collecting box and is connected to a friction arm. The displacement plate and the sliding plate are connected by an L-shaped plate. An air hole is opened on the bottom shell wall at the left end of the air collecting box, and an elbow pipe is installed in the air hole.

[0026] As a further solution of the present invention, the scraping member includes a base frame fixedly connected to the inner wall of the bottom of the top cover by bolts. A scraping main body for scraping raw materials is arranged on the base frame. An air duct is opened inside the scraping main body. A plurality of air outlet holes located on the side wall of the scraping main body are opened at the bottom of the air duct. The bottom end of the elbow pipe is communicated with the air duct.

[0027] Compared with the prior art, the beneficial effects of the present invention are:

[0028] 1. By adding a pretreatment mechanism to the top cover to crush the solid raw materials put into the equipment, replacing other devices required in the prior art, the integration of the equipment is realized, the process steps of raw material treatment are reduced, and the efficiency of raw material treatment is improved.

[0029] 2. The crushing components in the pretreatment mechanism rotate under the action of the driving component to crush the solid raw materials, avoiding large-volume solid raw materials from entering the mortar. The crushing rollers in the crushing components are made of heat-conducting materials, and can be heated when the air-blowing component conveys hot air, so as to dry the solid raw materials when crushing them, further reducing the moisture content of the solid raw materials and facilitating the subsequent grinding process.

[0030] 3. A transmission component is also arranged in the pretreatment mechanism. When the driving component operates, the mesh plate in the crushing component is synchronously vibrated, so that the crushed solid raw materials can enter the mortar in a scattered manner, avoiding the phenomenon of solid raw materials caking.

[0031] 4. An air guiding mechanism is also provided on the top cover, which realizes the blocking and switching of the gas flow generated by the air blowing component during the forward and reverse operation of the driving component. When the driving component runs in reverse, the air guiding mechanism opens, and the gas then enters the scraping member and is ejected from the air outlet holes of the scraping member to disperse the raw materials in the mortar, further preventing the raw materials from caking. Moreover, the discharge of the gas in the mortar, combined with the setting of the pressure relief valve, enables the air flow in the mortar to be discharged externally, thereby realizing the cooling treatment of the raw materials in the mortar and preventing the raw materials from deteriorating or caking due to overheating. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] Figure 1 is a schematic three-dimensional structure diagram of a grinding device for producing defoaming agents;

[0033] Figure 2 is Figure 1 the structural schematic diagram of the processing assembly;

[0034] Figure 3 is Figure 2 the structural schematic diagram of the mortar and the processing component;

[0035] Figure 4 is Figure 3 the schematic bottom view structure diagram;

[0036] Figure 5 is Figure 3 the structural schematic diagram of the top cover and the pretreatment mechanism Figure 1 ;

[0037] Figure 6 is Figure 3 the structural schematic diagram of the top cover and the pretreatment mechanism Figure 2 ;

[0038] Figure 7 is Figure 6 the enlarged schematic diagram of the partial structure at A;

[0039] Figure 8 is Figure 6 the schematic bottom view structure diagram;

[0040] Figure 9 is Figure 5 the structural schematic diagram of the pretreatment mechanism;

[0041] Figure 10 is Figure 9 the schematic bottom view structure diagram;

[0042] Figure 11 is Figure 10 the enlarged schematic diagram of the partial structure at B;

[0043] Figure 12 is Figure 5 the structural schematic diagram of the air guiding mechanism and the scraping memberFigure 1 ;

[0044] Figure 13 is Figure 12 a schematic enlarged view of the partial structure at position C of

[0045] Figure 14 is Figure 12 a schematic bottom view structure of

[0046] Figure 15 is Figure 14 a schematic enlarged view of the partial structure at position D of

[0047] Figure 16 is Figure 5 a schematic structure of the air guide mechanism and the scraper part of Figure 2 .

[0048] In the figure: 1. Controller main body; 2. L-shaped seat; 3. Locking part; 31. Cavity plate; 32. Adjusting screw rod; 33. Tightening plate; 4. Carrier plate; 5. Mortar; 6. Substrate; 7. Auxiliary part; 71. Slide rail; 72. Telescopic plate; 8. Top cover; 9. Pretreatment mechanism; 91. Crushing component; 911. Frame box; 912. Inclined plate; 913. Hollow shaft; 914. Crushing cylinder; 915. Mesh plate; 916. Integrating pipe; 92. Corrugated channel; 93. Driving component; 931. Motor; 932. Driving part; 933. Driven part; 934. Friction wheel; 935. Friction arm; 94. Air blowing component; 941. U-shaped frame; 942. Round rod; 943. Pressing plate; 944. Airbag main body; 945. Connecting plate; 946. Air guide pipe; 947. Heating wire main body; 948. Cam; 95. Transmission component; 951. Curved rod; 952. Single-sided wedge block; 953. Bent rod; 10. Air guide mechanism; 101. Air collecting box; 102. Partition board; 103. Slide plate; 104. Sealing plate; 105. End plate; 106. Extension plate; 107. L-shaped plate; 108. Displacement plate; 109. Bent pipe; 11. Pressure regulating device; 12. Pestle; 13. Scraper part; 131. Base frame; 132. Scraper main body; 14. Pressure relief valve; 15. Shell cover; 16. Horizontal adjusting part; 161. Horizontal screw rod; 162. Adjusting arm; 17. Longitudinal adjusting part. Detailed implementation manners

[0049] Please refer to Figures 1 - 2 , in an embodiment of the present invention, a grinding device for producing defoamer includes a controller main body 1 serving as a control area and a processing assembly serving as a processing area, wherein the processing assembly is located on the top of the controller main body 1. The controller main body 1 includes a housing, a control end and a driving motor are arranged inside the housing, and a control panel connected to the control end is further installed on the front shell wall of the housing.

[0050] The processing assembly includes an L-shaped seat 2 arranged on the outer wall of the top of the controller body 1. A locking member 3 and a carrier plate 4 are installed on the L-shaped seat 2. The output end of the driving motor penetrates through the housing and is connected to the carrier plate 4 for driving the rotational movement of the carrier plate 4. Among them, a mortar 5 is placed on the carrier plate 4, and a processing component is provided above the mortar 5. The outside of the processing component is wrapped with a housing cover 15. The setting of the housing cover 15 can make the processing area a relatively enclosed space after flipping and adjustment.

[0051] Please refer to Figures 2 - 4 , in the embodiment of the present invention, the processing component includes a substrate 6, an auxiliary member 7, a top cover 8, a pretreatment mechanism 9, a gas guiding mechanism 10, a pressure regulating device 11, a pestle 12, a scraping member 13, a pressure relief valve 14, a lateral adjusting member 16 and a longitudinal adjusting member 17.

[0052] A groove is formed at the top of the side wall of the L-shaped seat 2, and the substrate 6 is movably connected to the groove through a pin shaft.

[0053] The top cover 8 is located below the substrate 6, and the substrate 6 and the top cover 8 are connected through the auxiliary member 7. The pretreatment mechanism 9, the gas guiding mechanism 10 and the pressure regulating device 11 are all installed on the top of the top cover 8, and the pretreatment mechanism 9 and the gas guiding mechanism 10 are in mutual communication. The gas entering the pretreatment mechanism 9 can flow into the gas guiding mechanism 10.

[0054] The pestle 12 is located below the top cover 8 and is connected to the pressure regulating device 11. The scraping member 13 is located on the side of the pestle 12 and is fixedly connected to the bottom shell wall of the top cover 8 through bolts, and the scraping member 13 is in mutual communication with the gas guiding mechanism 10. The setting of the scraping member 13 can ensure the effect of grinding the raw materials in the mortar 5.

[0055] The lateral adjusting member 16 and the longitudinal adjusting member 17 are both arranged on the substrate 6 and are movably connected to the top cover 8. The position of the substrate 6 can be manually fine-tuned through the lateral adjusting member 16 and the longitudinal adjusting member 17.

[0056] Please refer to Figures 2 - 4 , in the embodiment of the present invention, a circular hole is formed at the center of the bottom of the L-shaped seat 2, and the carrier plate 4 is rotatably connected to the circular hole. The locking member 3 includes a cavity plate 31 fixedly connected to the front side shell wall of the L-shaped seat 2. An adjusting screw rod 32 is rotatably connected inside the cavity plate 31. The front end of the adjusting screw rod 32 penetrates through the corresponding side wall of the cavity plate 31 and is provided with a handle. A pressing plate 33 is slidably connected inside the cavity plate 31, and the pressing plate 33 is threadedly connected to the adjusting screw rod 32. By adjusting the adjusting screw rod 32 in the locking member 3, the pressing plate 33 can be driven to displace and adjust in the cavity plate 31, so as to realize the pressing and limiting of the housing cover 15.

[0057] The housing cover 15 is disposed on the top outer wall of the substrate 6. An opening is formed on the front side wall of the housing cover 15 to facilitate the passage of the locking member 3.

[0058] Please refer to Figures 3 - 4 , in the embodiment of the present invention, there are two auxiliary members 7, which are symmetrically distributed left and right. The setting of the two auxiliary members 7 ensures the stability of the assembly of the top cover 8. The auxiliary member 7 includes a slide rail 71 fixedly connected to the bottom outer wall of the substrate 6 by bolts. A sliding sleeve is slidably connected to the slide rail 71. A telescopic plate 72 is installed at the bottom of the sliding sleeve, and the output end of the telescopic plate 72 is fixedly connected to the top cover 8. The cooperation of the slide rail 71 and the sliding sleeve enables the top cover 8 to move back and forth under the action of the lateral adjusting member 16, and the setting of the telescopic plate 72 ensures the lifting movement of the top cover 8 under the action of the longitudinal adjusting member 17.

[0059] The lateral adjusting member 16 includes an end block fixedly connected to the bottom wall of the housing of the substrate 6. The front side of the end block is rotatably connected to a lateral lead screw 161 through a bearing. The front end of the lateral lead screw 161 penetrates through the front side wall of the housing cover 15, and an adjusting arm 162 is threadedly connected to the lateral lead screw 161. The bottom of the adjusting arm 162 is installed on the top cover 8. By adjusting the lateral lead screw 161, the adjusting arm 162 drives the top cover 8 to move back and forth.

[0060] The longitudinal adjusting member 17 includes a chute formed on the substrate 6, and a notch is formed above the chute on the top wall of the housing cover 15. A slider is slidably connected in the chute, and a threaded hole is provided at the center of the slider. A longitudinal lead screw is movably connected in the threaded hole. The top end of the longitudinal lead screw penetrates through the notch and is provided with a knob. The bottom end of the longitudinal lead screw is rotatably connected to the top cover 8 through a bearing. The adjustment of the longitudinal lead screw enables the top cover 8 to perform longitudinal lifting adjustment.

[0061] Please refer to Figures 3 - 4 , in the embodiment of the present invention, a hole is formed at the center of the top cover 8. Above the hole, a slot hole formed on the substrate 6 and a passage hole formed on the housing cover 15 are provided. The pressure adjusting device 11 is disposed at the center of the top cover 8, and the top of the pressure adjusting device 11 penetrates through the slot hole and the passage hole. The top end of the pestle 12 is inserted into the pressure adjusting device 11 through the hole. The aperture of the passage hole is relatively large, which can ensure the fine adjustment of the pressure adjusting device 11 in the front and back directions along with the top cover 8.

[0062] A pressure relief hole is formed on the top wall of the top cover 8, and a pressure relief valve 14 is installed in the pressure relief hole. The setting of the pressure relief valve 14 can automatically relieve the pressure when the internal pressure of the top cover 8 is relatively high after it contacts the mortar 5, so as to realize the flow of the internal air.

[0063] An arc-shaped notch is formed in the top cover 8, and an arc-shaped transparent plate is installed in the arc-shaped notch. An observation window penetrating through the substrate 6 and the housing cover 15 is formed above the arc-shaped notch, and an observation window is arranged in the observation window. The internal situation of the mortar 5 can be observed through the observation window and the arc-shaped transparent plate, which is convenient for the staff to observe the grinding situation of the raw materials inside the mortar 5.

[0064] A rectangular through groove located on the top cover 8 is formed on the right side of the hole, and a feeding port penetrating through the substrate 6 and the housing cover 15 is formed above the rectangular through groove. A cover plate is installed in the feeding port through a connecting pin, and the rectangular through groove and the feeding port are communicated through a pretreatment mechanism 9. The feeding of solid raw materials is facilitated through the feeding port, and the pretreatment mechanism 9 is provided to realize the pretreatment of solid raw materials.

[0065] Please refer to Figures 4 - 6 and Figures 9 - 10 In the embodiment of the present invention, the pretreatment mechanism 9 includes a crushing component 91, a corrugated channel 92, a driving component 93, a blowing component 94 and a transmission component 95. Among them, the blowing component 94 is located behind the crushing component 91. The crushing component 91 includes a frame box 911 arranged in the rectangular through groove. The frame box 911 is a box body structure without covers on the top and bottom.

[0066] Oblique plates 912 are symmetrically arranged on the left and right on the inner wall of the top of the frame box 911, and the two oblique plates 912 are provided to guide the solid raw materials put in. A crushing roller is arranged below each oblique plate 912 inside the frame box 911. The gap between the two oblique plates 912 corresponds to the middle area between the two crushing rollers, ensuring the crushing of solid raw materials.

[0067] A mesh plate 915 is arranged below the two crushing rollers inside the frame box 911, and the mesh plate 915 is used for the scattered feeding of the crushed raw materials. Slide groove groups are formed on the front and rear inner walls of the frame box 911, and the front and rear sides of the mesh plate 915 are respectively slidably connected with the corresponding slide groove groups.

[0068] The crushing roller includes a hollow shaft 913 and a crushing cylinder 914. Among them, both ends of the hollow shaft 913 penetrate through the corresponding side walls of the frame box 911 respectively. The crushing cylinder 914 is sleeved outside the hollow shaft 913, and the crushing cylinder 914 is used for crushing solid raw materials. Both the crushing cylinder 914 and the hollow shaft 913 are made of heat-conducting materials, so that the crushing cylinder 914 will quickly become hot when hot air flows through, thereby performing synchronous drying treatment on the crushed solid raw materials.

[0069] At the front ends of two hollow shafts 913, an integrated pipe 916 is jointly installed, and the integrated pipe 916 is rotatably connected to the hollow shafts 913. The integrated pipe 916 is composed of a main pipe and branch pipes. Among them, both ends of the main pipe are movably connected to the corresponding hollow shafts 913 respectively, the branch pipes are arranged on the side wall of the main pipe, and the branch pipes are in mutual communication with the inner cavity of the main pipe.

[0070] The bottom of the corrugated channel 92 is fixedly connected to the top shell wall of the frame box 911 by bolts, and the top of the corrugated channel 92 is fixedly connected to the bottom shell wall of the substrate 6 by bolts. The setting of the corrugated channel 92 on the one hand ensures the feeding of solid raw materials into the crushing assembly 91, and on the other hand is used to adapt to the fine adjustment of the top cover 8.

[0071] The driving assembly 93 is arranged on a bracket on the front outer wall of the frame box 911, and a motor 931 is installed on the bracket. The output end of the motor 931 is installed with a reciprocating lead screw, and a driving member 932 is arranged at the rear end of the reciprocating lead screw. Driven members 933 are respectively arranged on both sides of the driving member 932 on the corresponding hollow shafts 913. Among them, the driving member 932 and the driven member 933 on the right are in meshing transmission, and the driving member 932 and the driven member 933 on the left are linked by a chain. The driving member 932 is of a cylindrical gear structure, and the teeth on it are divided into two groups front and back. The teeth at the back are of a gear structure, and the teeth at the front are of a sprocket structure. The driven member 933 on the right is of a gear structure, and thus it meshes with the teeth at the back of the driving member 932. The driven member 933 on the left is of a sprocket structure, and thus it is connected to the teeth at the front of the driving member 932 through a chain.

[0072] An internally threaded ring is also threadedly connected to the reciprocating lead screw. A friction wheel 934 is arranged on the front side of the driven member 933 on the right on the corresponding hollow shaft 913. A friction arm 935 is arranged below the friction wheel 934. A friction pad is wound around the peripheral wall of the friction wheel 934, and a friction pad is also arranged at the position where the friction arm 935 contacts the friction wheel 934. Thus, during daily use, the contact effect between the two can be ensured by replacing the friction pads.

[0073] Please refer to Figures 4 - 8 and Figures 10 - 11 , in the embodiment of the present invention, the air blowing assembly 94 includes a U-shaped frame 941 fixedly connected to the top cover 8 by screws. Two through holes are symmetrically opened on the top shell wall of the U-shaped frame 941 from left to right, and a round rod 942 is movably connected in each through hole. A pressing plate 943 is fixedly connected to the bottom of the round rod 942, and an airbag main body 944 is arranged below the pressing plate 943 on the top cover 8. An air inlet pipe is arranged at the rear end of the airbag main body 944, and a one-way valve is installed on the air inlet pipe to ensure the self-supplementation of air after the airbag main body 944 is pressed.

[0074] The top of the round rod 942 is fixedly connected with a connecting plate 945 by screws. An air duct 946 is installed on the front side wall of each airbag main body 944. The front end of the air duct 946 is movably connected to the corresponding hollow shaft 913, and a heating wire body 947 is also sleeved on the air duct 946. The movement of the pressing plate 943 realizes the pressing of the corresponding airbag main body 944, and the setting of the heating wire body 947 realizes the heating of the gas entering the air duct 946, so that the gas entering the hollow shaft 913 is hot air, thereby realizing the heating treatment of the crushing roller.

[0075] A cam 948 is installed on the outer ring of the rear end of each hollow shaft 913. A sliding block is slidably connected to the peripheral wall of the cam 948, and the sliding block is connected to the connecting plate 945 by screws. An annular groove is formed on the peripheral wall of the cam 948, and the sliding block is slidably connected in the annular groove. As the hollow shaft 913 rotates, the cam 948 rotates accordingly, and the corresponding round rod 942 is driven to move up and down through the connecting plate 945.

[0076] The transmission component 95 includes a curved rod 951 fixedly connected to the internal thread ring. A single-sided wedge block 952 is installed at the end of the curved rod 951 away from the internal thread ring. The single-sided wedge block 952 is slidably connected to the top cover 8, thereby realizing the guiding of the movement of the internal thread ring and ensuring the stability of the movement of the single-sided wedge block 952.

[0077] A bent rod 953 is arranged behind the single-sided wedge block 952. One end of the bent rod 953 is fixedly connected to the mesh plate 915. The other end of the bent rod 953 penetrates through the top cover 8 and is connected with a rolling ball in a rolling manner. The rolling ball is in rolling contact with the inclined surface of the single-sided wedge block 952.

[0078] A positioning ring and a return spring are sleeved under the top cover 8 on the bent rod 953. Among them, the positioning ring is fixedly connected to the outer wall of the bent rod 953, the bottom end of the return spring is arranged on the positioning ring, and the top end of the return spring is fixedly connected to the bottom wall of the top cover 8. When the single-sided wedge block 952 presses the bent rod 953, the mesh plate 915 moves downward. When the single-sided wedge block 952 leaves the bent rod 953, the mesh plate 915 can be elastically reset under the action of the return spring, so that the mesh plate 915 vibrates.

[0079] Please refer to Figure 5 、 Figure 8 and Figures 12 - 16 In the embodiment of the present invention, the air guiding mechanism 10 includes an air collecting box 101 arranged on the front side of the pretreatment mechanism 9. An air permeable port and an air guiding hole are formed on the top wall of the air collecting box 101. The integrating pipe 916 is communicated with the air guiding hole, and thus the air flow in the crushing roller can enter the air collecting box 101.

[0080] A receiving groove located on the inner wall of the top of the air collecting box 101 is formed around the bottom of the air vent, and a displacement plate 108 is slidably connected in the receiving groove. A rubber plate is arranged on the top of the displacement plate 108, so as to seal the air vent.

[0081] A partition plate 102 located inside the air collecting box 101 is arranged on the left side of the air vent, and a sliding plate 103 located on the inner wall of the front side of the air collecting box 101 is slidably connected to the front side of the partition plate 102. The partition plate 102 adopts a bent structure, and a rubber pad is arranged on the left shell wall thereof.

[0082] A sealing plate 104 is installed at the left end of the sliding plate 103, and an end plate 105 is fixedly connected to the right end of the sliding plate 103. The sealing plate 104 also adopts a bent structure, and a rubber pad is arranged on the right shell wall thereof, so as to seal the inside of the air collecting box 101 when the sealing plate 104 contacts the partition plate 102.

[0083] An extension plate 106 is installed on the right shell wall of the end plate 105. The right end of the extension plate 106 passes through the corresponding side wall of the air collecting box 101 and is connected to the friction arm 935.

[0084] The displacement plate 108 and the sliding plate 103 are connected by an L-shaped plate 107. An air hole is formed in the bottom shell wall at the left end of the air collecting box 101, and an elbow pipe 109 is installed in the air hole. When the sliding plate 103 moves leftward, it drives the sealing plate 104 and the displacement plate 108 to move leftward synchronously. At this time, the sealing plate 104 is separated from the partition plate 102, while the displacement plate 108 seals the air vent. On the contrary, the sealing condition inside the air collecting box 101 can be adjusted.

[0085] The scraping member 13 includes a base frame 131 fixedly connected to the inner wall of the bottom of the top cover 8 by bolts. A scraping plate main body 132 for scraping the raw materials is arranged on the base frame 131. An air duct is formed inside the scraping plate main body 132. A plurality of air outlet holes located on the side wall of the scraping plate main body 132 are formed at the bottom of the air duct. The bottom end of the elbow pipe 109 is communicated with the air duct. The gas in the air collecting box 101 enters the air duct through the elbow pipe 109, and then the raw materials in the mortar 5 are blown by each air outlet hole, so as to further disperse the raw materials, and the flow of the gas will cool the raw materials.

[0086] The working principle of the present invention is as follows: When the product is in use, first place the mortar 5 on the carrier plate 4, then install the pestle 12 on the pressure regulating device 11. Next, drive the processing component to perform an overall flip through the housing cover 15. During the flipping movement of the housing cover 15, due to the adaptability between the mortar 5 and the processing component, the lateral adjusting member 16 and the longitudinal adjusting member 17 are manually adjusted accordingly, so that the processing component can adapt to the current mortar 5. After the housing cover 15 is closed, adjust the adjusting screw rod 32 in the locking member 3 to make the pressing plate 33 move, and realize the pressing and limiting of the housing cover 15 through the pressing plate 33.

[0087] Turn on the pretreatment mechanism 9 through the controller main body 1, so as to realize its pre-operation for a period of time. When the pretreatment mechanism 9 is operating, the motor 931 in the driving component 93 drives the reciprocating screw rod to rotate forward, so that the driving member 932 thereon rotates forward accordingly. When the driving member 932 rotates forward, it meshes and drives with the driven member 933 on the right side, so that the corresponding crushing roller rotates counterclockwise. When the driving member 932 rotates forward, the corresponding crushing roller rotates clockwise through the linkage of the chain between it and the driven member 933 on the left side. The reverse movement between the two crushing rollers at this time enables them to perform rolling and crushing treatment on solid raw materials.

[0088] When the two crushing rollers rotate, they synchronously drive the corresponding cams 948 in the air blowing component 94 to rotate. When the cam 948 rotates, the sliding block thereon drives the corresponding connecting plate 945 to move, so that the corresponding round rod 942 drives the corresponding pressing plate 943 to perform reciprocating lifting activities. During the lifting movement of the pressing plate 943, it squeezes the corresponding airbag main body 944, so that the gas in the airbag main body 944 enters the corresponding crushing roller through the corresponding air guide pipe 946. After the heating wire main body 947 provided in each air guide pipe 946 operates, it will heat the gas passing through the air guide pipe 946. The heated gas will heat the crushing roller after entering the corresponding crushing roller. And after the gas passes through the crushing roller, it will enter the integration pipe 916 and finally enter the air collecting box 101 of the air guiding mechanism 10 from the integration pipe 916.

[0089] When the right crushing roller rotates counterclockwise, the friction wheel 934 thereon moves synchronously. When the friction wheel 934 rotates counterclockwise, it drives the friction arm 935 below, so that the friction arm 935 moves to the right. When the friction arm 935 moves to the maximum distance to the right, the friction arm 935 stays dynamically at the rightmost end.

[0090] When the friction arm 935 moves to the right, it drives the extension plate 106 in the air guiding mechanism 10 to move to the right. At this time, under the action of the end plate 105, the sliding plate 103 moves synchronously, and then drives the blocking plate 104 and the L-shaped plate 107 to move synchronously. When the blocking plate 104 moves to the right to the maximum distance, the blocking plate 104 fits against the blocking partition 102. At this time, the inside of the air collecting box 101 is blocked, and the L-shaped plate 107 drives the displacement plate 108 to move to the right, opening the blockage of the air vent.

[0091] At this time, the hot air that enters the air collecting box 101 through the integrating pipe 916 is discharged from the air vent.

[0092] After the pre-operation of the pretreatment mechanism 9 is completed, the cover plate of the feed port is opened, and an appropriate amount of solid raw materials to be processed is put in. After a large amount of solid raw materials enter the pretreatment mechanism 9 from the feed port, they are stacked in the corrugated channel 92. The solid raw materials fall into the crushing assembly 91 under the action of gravity, and then are crushed by two crushing rollers.

[0093] The crushed solid raw materials fall onto the mesh plate 915 and accumulate. When the driving assembly 93 drives the reciprocating lead screw to operate, the internal thread ring on the reciprocating lead screw moves linearly back and forth when connected to the transmission assembly 95. When the internal thread ring moves, the curved rod 951 in the transmission assembly 95 drives the single-sided wedge block 952 to slide back and forth. When the single-sided wedge block 952 moves backward, the contact between the single-sided wedge block 952 and the ball of the bent rod 953 is disengaged. Then, under the action of the return spring, the bent rod 953 moves upward. The upward movement of the bent rod 953 drives the mesh plate 915 to move synchronously, thereby realizing the jitter of the mesh plate 915, so that the solid raw materials stacked on it are scattered and put into the mortar 5 below.

[0094] By opening and closing the cover plate, the solid raw materials remaining in the pretreatment mechanism 9 can be observed. When the solid raw materials are crushed, the controller main body 1 first closes the pretreatment mechanism 9, and then moves the carrier plate 4, so that the mortar 5 rotates. During the rotation of the mortar 5, the internal solid raw materials are ground by combining the scraping member 13 and the pestle 12.

[0095] When the pretreatment mechanism 9 stays for a period of time, the controller main body 1 starts the driving assembly 93 in the pretreatment mechanism 9 again. At this time, the motor 931 in the driving assembly 93 rotates in reverse, thereby driving each crushing roller to move in the reverse direction. When each crushing roller moves, it will realize the operation of the air blowing assembly 94, and then pour air into the inside of each crushing roller. At this time, the heating wire main body 947 is in the off state, and the air flow at this stage is at room temperature.

[0096] When the crushing roller on the right side moves clockwise, the friction wheel 934 on it drives the corresponding friction arm 935 to move leftward. When the friction arm 935 moves leftward, the slide plate 103 in the air guide mechanism 10 drives the plugging plate 104 to move leftward, opening the plugging between it and the baffle plate 102, and the L-shaped plate 107 drives the displacement plate 108 to move leftward to achieve the plugging of the air vent.

[0097] The airflow passing through the crushing roller enters the air collecting box 101 under the action of the integrating pipe 916, and then, under the action of the elbow pipe 109, it is input into the air duct of the scraper main body 132 in the scraper member 13 and ejected from each air outlet hole of the air duct. After the airflow is ejected, it blows the solid raw materials being ground in the mortar 5, thereby dispersing the solid raw materials. When the air pressure in the mortar 5 is relatively high, the pressure relief valve 14 realizes automatic pressure relief, thereby realizing the air flow in the mortar 5 and thus realizing the cooling treatment of the solid raw materials.

[0098] The above are only the preferred specific embodiments of the present invention, but the protection scope of the present invention is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present invention, according to the technical solution and inventive concept of the present invention, makes equivalent replacements or changes, and should be covered within the protection scope of the present invention.

Claims

1. A grinding device for producing defoamers, comprising a controller body (1) serving as a control area and a processing assembly serving as a processing area, wherein, The processing assembly is located at the top of the controller main body (1), and is characterized in that: the processing assembly includes an L-shaped seat (2) arranged on the outer wall of the top of the controller main body (1), a locking member (3) and a carrier plate (4) are installed on the L-shaped seat (2), wherein, a mortar (5) is placed on the carrier plate (4), a processing component is arranged above the mortar (5), and a housing cover (15) is wrapped outside the processing component; The processing component includes a substrate (6), an auxiliary member (7), a top cover (8), a pretreatment mechanism (9), a gas guiding mechanism (10), a pressure regulating device (11), a pestle (12), a scraping member (13), a pressure relief valve (14), a lateral regulating member (16) and a longitudinal regulating member (17). Among them, the substrate (6) is movably connected to the L-shaped seat (2) through a pin shaft, the top cover (8) is located below the substrate (6), and the substrate (6) and the top cover (8) are connected through the auxiliary member (7). The pretreatment mechanism (9), the gas guiding mechanism (10) and the pressure regulating device (11) are all installed on the top of the top cover (8), and the pretreatment mechanism (9) and the gas guiding mechanism (10) are communicated with each other. The pestle (12) is located below the top cover (8) and is connected to the pressure regulating device (11). The scraping member (13) is located on the side of the pestle (12) and is fixedly connected to the bottom shell wall of the top cover (8) through bolts, and the scraping member (13) is communicated with the gas guiding mechanism (10). The lateral regulating member (16) and the longitudinal regulating member (17) are both arranged on the substrate (6) and are movably connected to the top cover (8).

2. The grinding device for defoamer production according to claim 1, wherein, A round hole is opened at the center of the bottom of the L-shaped seat (2), and the carrier plate (4) is rotatably connected in the round hole. The locking member (3) includes a cavity plate (31) fixedly connected to the front side shell wall of the L-shaped seat (2). An adjusting screw rod (32) is rotatably connected inside the cavity plate (31). The front end of the adjusting screw rod (32) penetrates through the corresponding side wall of the cavity plate (31) and is provided with a handle. A pressing plate (33) is slidably connected inside the cavity plate (31), and the pressing plate (33) is threadedly connected to the adjusting screw rod (32); The housing cover (15) is arranged on the outer wall of the top of the substrate (6), and a notch is opened on the front side shell wall of the housing cover (15) for facilitating the passage of the locking member (3).

3. The grinding device for producing defoamer according to claim 1, characterized in that, There are two auxiliary members (7), which are distributed symmetrically left and right. The auxiliary member (7) includes a slide rail (71) fixedly connected to the outer wall of the bottom of the substrate (6) through bolts. A sliding sleeve is slidably connected on the slide rail (71), and a telescopic plate (72) is installed at the bottom of the sliding sleeve. The output end of the telescopic plate (72) is fixedly connected to the top cover (8); The lateral regulating member (16) includes an end block fixedly connected to the bottom shell wall of the substrate (6). A lateral screw rod (161) is rotatably connected to the front side of the end block through a bearing. The front end of the lateral screw rod (161) penetrates through the front side shell wall of the housing cover (15), and an adjusting arm (162) is threadedly connected to the lateral screw rod (161). The bottom of the adjusting arm (162) is installed on the top cover (8); The longitudinal adjustment member (17) includes a chute formed in the substrate (6). A notch is formed above the chute on the top shell wall of the shell cover (15). A slider is slidably connected in the chute. A threaded hole is provided at the center of the slider. A longitudinal screw rod is movably connected in the threaded hole. The top end of the longitudinal screw rod penetrates through the notch and is provided with a knob. The bottom end of the longitudinal screw rod is rotatably connected to the top cover (8) through a bearing.

4. A grinding device for producing an antifoaming agent according to claim 1, characterized in that, A hole is formed at the center of the top cover (8). Above the hole, a slot hole formed in the substrate (6) and a passage hole formed in the shell cover (15) are provided. The pressure adjustment device (11) is arranged at the center of the top cover (8). The top of the pressure adjustment device (11) penetrates through the slot hole and the passage hole. The top end of the pestle (12) is inserted into the pressure adjustment device (11) through the hole. A pressure relief hole is formed in the top shell wall of the top cover (8). The pressure relief valve (14) is installed in the pressure relief hole. An arc-shaped notch is formed in the top cover (8). An arc-shaped transparent plate is installed in the arc-shaped notch. Above the arc-shaped notch, an observation window penetrating through the substrate (6) and the shell cover (15) is provided. An observation window is arranged in the observation window. A rectangular through groove is formed on the top cover (8) on the right side of the hole. Above the rectangular through groove, a feed port penetrating through the substrate (6) and the shell cover (15) is provided. A cover plate is installed in the feed port through a connecting pin. The rectangular through groove and the feed port are communicated through a pretreatment mechanism (9).

5. A grinding device for producing an antifoaming agent according to claim 1, characterized in that, The pretreatment mechanism (9) includes a crushing component (91), a corrugated channel (92), a driving component (93), a blowing component (94) and a transmission component (95). Among them, the blowing component (94) is located behind the crushing component (91). The crushing component (91) includes a frame box (911) arranged in the rectangular through groove. Diagonal plates (912) are symmetrically arranged on the top inner wall of the frame box (911) from left to right. Below each diagonal plate (912), a crushing roller is arranged inside the frame box (911). Below the two crushing rollers, a mesh plate (915) is arranged inside the frame box (911). The mesh plate (915) is used for the scattered feeding of the crushed raw materials. The crushing roller includes a hollow shaft (913) and a crushing cylinder (914). Among them, the two ends of the hollow shaft (913) respectively penetrate through the corresponding side walls of the frame box (911). The crushing cylinder (914) is sleeved outside the hollow shaft (913). The crushing cylinder (914) is used for crushing solid raw materials. An integration pipe (916) is jointly installed at the front ends of the two hollow shafts (913). The integration pipe (916) is rotatably connected to the hollow shaft (913). The bottom of the corrugated channel (92) is fixedly connected to the top shell wall of the frame box (911) through bolts. The top of the corrugated channel (92) is fixedly connected to the bottom shell wall of the substrate (6) through bolts.

6. The grinding device for producing defoamer according to claim 5, characterized in that, The driving component (93) is arranged on a bracket on the front outer wall of the box (911). A motor (931) is installed on the bracket. A reciprocating lead screw is installed at the output end of the motor (931). A driving member (932) is arranged at the rear end of the reciprocating lead screw. Driven members (933) are respectively arranged on both sides of the driving member (932) on the corresponding hollow shafts (913). Among them, the driving member (932) is in meshing transmission with the driven member (933) on the right side, and the driving member (932) is linked with the driven member (933) on the left side through a chain; An internally threaded ring is also threadedly connected to the reciprocating lead screw. A friction wheel (934) is arranged on the front side of the driven member (933) on the right side on the corresponding hollow shaft (913). A friction arm (935) is arranged below the friction wheel (934).

7. A grinding device for producing an antifoaming agent according to claim 6, characterized in that, The air blowing component (94) includes a U-shaped frame (941) fixedly connected to the top cover (8) by screws. Two through holes are symmetrically formed on the top shell wall of the U-shaped frame (941) from left to right. A round rod (942) is movably connected in each through hole. A pressing plate (943) is fixedly connected to the bottom of the round rod (942). An airbag main body (944) is arranged below the pressing plate (943) on the top cover (8). A connecting plate (945) is fixedly connected to the top of the round rod (942) by screws. An air guide pipe (946) is installed on the front shell wall of each airbag main body (944). The front end of the air guide pipe (946) is movably connected to the corresponding hollow shaft (913), and a heating wire main body (947) is also sleeved on the air guide pipe (946); A cam (948) is installed on the outer ring at the rear end of each hollow shaft (913). A sliding block is slidably connected to the peripheral wall of the cam (948). The sliding block is connected to the connecting plate (945) by screws.

8. A grinding device for producing defoamer according to claim 7, characterized in that, The transmission component (95) includes a curved rod (951) fixedly connected to the internally threaded ring. A single-sided wedge block (952) is installed at the end of the curved rod (951) away from the internally threaded ring. The single-sided wedge block (952) is slidably connected to the top cover (8). A bent rod (953) is arranged behind the single-sided wedge block (952). One end of the bent rod (953) is fixedly connected to the mesh plate (915). The other end of the bent rod (953) penetrates through the top cover (8) and is rotatably connected with a ball. The ball is in rolling contact with the inclined surface of the single-sided wedge block (952). A positioning ring and a return spring are sleeved on the bent rod (953) below the top cover (8). Among them, the positioning ring is fixedly connected to the outer peripheral wall of the bent rod (953), the bottom end of the return spring is arranged on the positioning ring, and the top end of the return spring is fixedly connected to the bottom shell wall of the top cover (8).

9. The grinding device for producing defoamer according to claim 8, characterized in that, The air guiding mechanism (10) includes a gas collecting box (101) arranged on the front side of the pretreatment mechanism (9). An air permeable port and an air guiding hole are formed in the top shell wall of the gas collecting box (101). The integrated pipe (916) is communicated with the air guiding hole. A receiving groove located on the inner wall of the top of the gas collecting box (101) is formed around the bottom of the air permeable port. A displacement plate (108) is slidably connected in the receiving groove. A partition plate (102) located inside the gas collecting box (101) is arranged on the left side of the air permeable port. A sliding plate (103) located on the inner wall of the front side of the gas collecting box (101) is slidably connected to the front side of the partition plate (102). A blocking plate (104) is installed at the left end of the sliding plate (103). A end plate (105) is fixedly connected to the right end of the sliding plate (103). An extension plate (106) is installed on the right side shell wall of the end plate (105). The right end of the extension plate (106) passes through the corresponding side wall of the gas collecting box (101) and is connected to the friction arm (935). The displacement plate (108) and the sliding plate (103) are connected by an L-shaped plate (107). An air hole is formed in the bottom shell wall at the left end of the gas collecting box (101), and an elbow pipe (109) is installed in the air hole.

10. The grinding device for defoamer production according to claim 9, wherein, The scraping member (13) includes a base frame (131) fixedly connected to the inner wall of the bottom of the top cover (8) by bolts. A scraping main body (132) for scraping raw materials is arranged on the base frame (131). An air passage is formed inside the scraping main body (132). A plurality of air outlet holes located on the side wall of the scraping main body (132) are formed at the bottom of the air passage. The bottom end of the elbow pipe (109) is communicated with the air passage.

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