A device for dissolving resin on the surface of coated sand

Abstract

The present invention relates to the technical field of coated sand processing, and in particular to a device for dissolving resin on the surface of coated sand, comprising a shell, a square top plate being detachably mounted on the upper end of the shell, a feed notch being provided on the front of the shell, a primary dissolution mechanism and a mixed coating mechanism being provided inside the shell, a heating and dissolution mechanism being provided inside the primary dissolution mechanism, an auxiliary feeding mechanism being provided at the lower end of the inner cavity of the shell, a shielding and protection mechanism being provided on the inner side of the feed notch, and the primary dissolution mechanism comprising a reaction circular tank fixedly mounted on the upper end of the square top plate. The present invention can automatically perform primary dissolution of phenolic resin by providing a primary dissolution mechanism and utilizing the mutual cooperation between a crushing circular tube and a vertical drain pipe, which can effectively shorten the time and energy consumption required for heating and dissolving. In addition, the phenolic resin dissolved in alcohol has a certain fluidity, which is convenient for feeding, and can greatly improve the efficiency of the resin dissolution process.

Description

Technical Field

[0001] The invention relates to the technical field of coated sand processing, in particular to a device for dissolving resin on the surface of coated sand. Background Art

[0002] Coated sand is a new type of material with natural quartz sand as the sand base and a layer of phenolic resin film wrapped on the outside. It has excellent waterproof, dustproof and durable properties and can be used for civil engineering construction as well as automotive parts manufacturing. Nowadays, coated sand is almost always produced by hot coating method, that is, the raw sand is first heated to a certain temperature, and then mixed with resin, urotropine aqueous solution and calcium stearate, and finally cooled, crushed and sieved. At room temperature, phenolic resin is often solid with different particle sizes. It needs to be dissolved when used before coating processing can be carried out.

[0003] In the prior art, to prevent adhesion between the highly viscous phenolic resin and the heating equipment, people usually spend a lot of time first heating the quartz sand. After the heating is completed, the solid phenolic resin is directly poured into the interior of the quartz sand, and then the high temperature inside the quartz sand is used to dissolve the phenolic resin. Obviously, this not only consumes a lot of time and energy and is inefficient, but also the continuous high temperature inside the quartz sand will adversely affect substances such as the urotropine aqueous solution and calcium stearate, thereby reducing the quality of the coating process. Summary of the Invention

[0004] In response to the shortcomings of the existing technology, the present invention provides a device for dissolving resin on the surface of coated sand, which solves the technical problems in the existing technology of low efficiency in dissolving resin and low quality of coating processing. It has the advantages of being able to improve the efficiency of resin processing to a certain extent and effectively improve the quality of coating processing.

[0005] In order to solve the above technical problems, the present invention provides the following technical solutions: a device for dissolving resin on the surface of coated sand, comprising a shell, a square top plate detachably mounted on the upper end of the shell, a feeding notch on the front of the shell, a transparent window on the upper end of the shell, a primary dissolving mechanism and a mixed coating mechanism arranged inside the shell, a heating dissolving mechanism arranged inside the primary dissolving mechanism, an auxiliary feeding mechanism arranged at the lower end of the shell cavity, a shielding and protecting mechanism arranged on the inner side of the feeding notch, after the quartz sand enters the interior of the shell under the action of the auxiliary feeding mechanism, the primary dissolving mechanism and the heating dissolving mechanism will add the dissolved phenolic resin to the interior of the mixed coating mechanism, and then the mixed coating mechanism will stir and mix the quartz sand, the primary dissolving mechanism comprises a material fixedly mounted on the square top plate The reaction round tank at the upper end has fixed protrusions symmetrically installed on the outside of the reaction round tank, and a mounting bracket is detachably installed on the fixed protrusion. The lower end of the mounting bracket is movably mounted with an alcohol storage tank, and the upper end of the mounting bracket is fixedly mounted with a driving motor for driving the alcohol storage tank to rotate. The lower end of the alcohol storage tank is fixedly mounted with a drainage vertical pipe, and a crushing circular pipe is provided at the lower end of the drainage vertical pipe. The outside of the crushing circular pipe is provided with a side wall blade, and the outside of the drainage vertical pipe is slidably connected with a movable circular plate. An avoidance ring groove is provided on the inner wall of the reaction round tank, and a telescopic push rod is fixedly installed at the lower end of the alcohol storage tank. The lower end of the reaction round tank is fixedly mounted with a discharge assembly. After the staff pours the phenolic resin particles into the interior of the reaction round tank, the alcohol will dissolve the phenolic resin particles, and the phenolic resin after dissolution will be discharged downward through the discharge assembly.

[0006] Preferably, the discharge assembly includes a discharge square tube connected to the interior of the reaction round tank, the inner side wall of the discharge square tube is coated with an anti-stick coating, and the upper end of the discharge square tube is penetrated by a plurality of circular through holes. When the dissolved phenolic resin flows downward through the discharge square tube, the alcohol inside will be heated and volatilized, and the volatilized alcohol will be discharged outward through the circular through holes.

[0007] Preferably, the lower end of the telescopic push rod is fixedly connected to the movable circular plate, the outer surface of the movable circular plate is tightly fitted with the inner wall of the reaction circular tank, the outer surface of the drainage vertical pipe is tightly fitted with the movable circular plate, the height of the avoidance ring groove matches the thickness of the movable circular plate, and the movable circular plate can rotate freely when aligned with the avoidance ring groove, and the telescopic push rod will cause the movable circular plate to move downward when it is extended downward.

[0008] Preferably, the mixing and coating mechanism includes a mixing cylinder movably installed in a shell, a rotating shaft movably installed inside the mixing cylinder, a stirring motor for driving the rotating shaft is fixedly installed at the lower end of the rotating shaft, a mounting circular cover is sleeved on the outside of the rotating shaft, a fixed connecting rod is provided between the mounting circular cover and the inner wall of the mixing cylinder, a stirring assembly is provided on the outside of the lower end of the rotating circular shaft, the upper end of the rotating circular shaft is transmission-connected with an active bevel gear, a horizontal shaft is movably installed on the upper end of the mounting circular cover, one end of the horizontal shaft extending into the inner side of the mounting circular cover is transmission-connected with a driven bevel gear, a flip square plate is fixedly installed on the outside of the horizontal shaft, and when the rotating circular shaft rotates under the action of the stirring motor, the stirring assembly will rotate synchronously, and when the stirring assembly rotates, the material inside the mixing cylinder will be stirred and mixed.

[0009] Preferably, the stirring assembly includes a stirring rod fixedly mounted on the outside of the rotating shaft, and mixing rods are evenly spaced at the lower end of the stirring rod. When the rotating shaft rotates, the stirring rod and the mixing rod will rotate synchronously.

[0010] Preferably, the heating and dissolving mechanism includes an electric heater fixedly installed at the lower end of the discharge square tube, a fixed square cover is provided above the circular through hole, an air suction square box is detachably installed on the upper end of the fixed square cover, an installation cavity is provided inside the air suction square box, an absorbent cotton board is fixedly installed at the lower end of the installation cavity, an activated carbon board is detachably installed above the absorbent cotton board, and the gas generated by heating is discharged through the circular through hole and enters the interior of the air suction square box, and then the absorbent cotton board and the activated carbon board absorb and purify the gas.

[0011] Preferably, the auxiliary feeding mechanism includes a fixed square rail fixedly installed at the lower end of the inner cavity of the shell, a sliding base is movably installed inside the fixed square rail, the upper end of the sliding base is fixedly connected to the mixing cylinder, a touch switch is provided at the end of the fixed square rail, a horizontal pull rod is fixedly connected to the front of the sliding base, and a loading platform is provided on the outside of the feed notch. When the staff pulls the horizontal pull rod, the sliding base will move horizontally along the fixed square rail, and when the sliding base moves, the mixing cylinder will move synchronously.

[0012] Preferably, the shielding and protection mechanism includes a vertical track fixedly installed on the inner side of the feed notch, and the vertical track is symmetrically arranged on the left and right sides of the feed notch. A guide round rod is fixedly installed inside the left vertical track, and a vertical screw is movably installed inside the right vertical track. Movable sliders are provided on the outside of the guide round rod and the vertical screw, and the movable slider is threadedly engaged with the vertical screw. A winding assembly is movably installed on the upper end of the vertical track, and a fixed round rod is provided between the two movable sliders. A flexible rubber is provided inside the winding assembly. After the feeding is completed, the flexible rubber will block the outside of the feed notch with the cooperation of the winding assembly and the fixed round rod.

[0013] Preferably, the winding assembly includes a mounting base fixedly mounted on the upper end of the vertical track, a winding cylinder is movably mounted on the mounting base, a coil spring is provided inside the winding cylinder, one end of the flexible rubber is fixedly connected to the winding cylinder, and the other end of the flexible rubber is fixedly connected to the fixed round rod, and a micro motor for driving the vertical screw to rotate is fixedly mounted on the lower end of the vertical track. When the movable slider moves vertically downward, the fixed round rod will move downward synchronously, and when the fixed round rod moves downward, the flexible rubber will be blocked outside the feed gap.

[0014] Preferably, the micro motor is electrically connected to the touch switch through a wire. When the touch switch is turned on, the micro motor drives the vertical screw to rotate forward, causing the movable slider to move downward. When the touch switch is disconnected, the micro motor drives the vertical screw to rotate reversely, causing the movable slider to move upward.

[0015] By means of the above technical solution, the present invention provides a device for dissolving resin on the surface of coated sand, which has at least the following beneficial effects:

[0016] 1. The present invention provides a primary dissolution mechanism and utilizes the mutual cooperation between the crushing circular tube and the liquid discharge vertical pipe to automatically perform primary dissolution of the phenolic resin, which can effectively shorten the time and energy consumption required for heating and dissolving. In addition, the phenolic resin dissolved in alcohol has a certain fluidity, which is convenient for feeding, and can greatly improve the efficiency of the resin dissolution process.

[0017] 2. The present invention provides a primary dissolution mechanism and utilizes the mutual cooperation between the movable circular plate and the telescopic push rod to automatically scrape off the phenolic resin remaining on the drainage vertical pipe and the reaction round tank after the primary dissolution process is completed, which can not only avoid the waste of resin to a large extent, but also greatly facilitate the subsequent cleaning work.

[0018] 3. The present invention sets a mixing and coating mechanism and utilizes the mutual cooperation between the stirring assembly and the flip square plate to automatically stir and mix the quartz sand material inside the mixing cylinder, thereby quickly completing the coating process. Moreover, the phenolic resin slowly falls into the interior of the mixing cylinder in batches during the material mixing process, which can greatly improve the uniformity of the resin coating and greatly improve the coating effect.

[0019] 4. The present invention sets a mixed coating mechanism and utilizes the mutual cooperation between the flip square plate and the horizontal circular shaft to automatically circulate and flip the mixed material upward, so that the phenolic resin that has just fallen quickly enters the interior of the quartz sand, avoiding the phenolic resin from being on the surface of the quartz sand for a long time, which can greatly improve the efficiency of the coating process.

[0020] 5. The present invention sets a heating and dissolving mechanism and utilizes the mutual cooperation between the electric heater and the circular through hole to automatically and quickly heat the phenolic resin in a flowing state, thereby completing the secondary dissolution of the phenolic resin and dissolving some resin particles that have not been completely dissolved, thereby greatly improving the quality of the resin dissolution processing.

[0021] 6. The present invention provides a heating and dissolving mechanism and utilizes the cooperation between the fixed square cover and the air suction square box to automatically absorb and remove the harmful gases generated during the resin heating process, thereby preventing these harmful gases from causing damage to the surrounding environment and workers.

[0022] 7. The present invention sets up an auxiliary feeding mechanism and utilizes the mutual cooperation between the sliding base and the horizontal pull rod to help workers quickly complete feeding and unloading, thereby saving time and effort. Moreover, during the lamination process, workers can observe the processing status through the transparent window at all times, which is convenient to use.

[0023] 8. The present invention sets a shielding and protection mechanism and utilizes the mutual cooperation between the winding component and the movable slider to automatically shield and protect the feed gap after the feeding is completed. It can effectively prevent external dust and other impurities from entering the interior of the shell and having an adverse effect on the coating process, and can also prevent the harmful gases generated in the mixed coating process from drifting outward through the feed gap to a certain extent. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] The drawings described herein are used to provide a further understanding of the present application and constitute a part of the present application. The illustrative embodiments of the present application and their descriptions are used to explain the present application and do not constitute an improper limitation on the present application. In the drawings:

[0025] Figure 1 It is a front view of the overall structure of the present invention;

[0026] Figure 2 is a cross-sectional view of the shell structure of the present invention;

[0027] Figure 3 It is a schematic diagram of some structures in the present invention;

[0028] Figure 4 Schematic diagram of the interior of the primary dissolution mechanism of the present invention;

[0029] Figure 5 Schematic diagram of the crushing circular tube structure in the present invention;

[0030] Figure 6 Schematic diagram of the interior of the hybrid coating mechanism of the present invention;

[0031] Figure 7 Schematic diagram of the installation position of the rotating shaft in the present invention;

[0032] Figure 8 Schematic diagram of the structure of the driven bevel gear in the present invention;

[0033] Figure 9 This is a schematic diagram of the interior of the heating and dissolving mechanism of the present invention;

[0034] Figure 10 A cross-sectional view of the air-intake box structure of the present invention;

[0035] Figure 11 Schematic diagram of the interior of the auxiliary feeding mechanism of the present invention;

[0036] Figure 12 Schematic diagram of the interior of the shielding protection mechanism in the present invention.

[0037] In the figure: 1. Shell; 2. Square top plate; 3. Feeding notch; 4. Transparent window; 5. Primary dissolution mechanism; 501. Reaction cylinder; 502. Fixing protrusion; 503. Mounting bracket; 504. Alcohol storage tank; 505. Driving motor; 506. Drainage vertical pipe; 507. Crushing cylinder; 508. Side wall blade; 509. Movable circular plate; 510. Avoidance ring groove; 511. Telescopic push rod; 512. Discharge assembly; 513. Circular through hole; 6. Mixing and coating mechanism; 601. Mixing cylinder; 602. Rotating circular shaft; 603. Stirring motor; 604. Mounting cover; 605. Fixing connecting rod; 606. Stirring assembly; 607, driving bevel gear; 608, horizontal circular shaft; 609, driven bevel gear; 610, flip square plate; 7, heating and dissolving mechanism; 701, electric heater; 702, fixed square cover; 703, suction square box; 704, installation cavity; 705, absorbent cotton board; 706, activated carbon board; 8, auxiliary feeding mechanism; 801, fixed square rail; 802, sliding base; 803, touch switch; 804, horizontal pull rod; 805, loading platform; 9, shielding and protection mechanism; 901, vertical track; 902, vertical screw; 903, movable slider; 904, winding assembly; 905, fixed round rod; 906, flexible rubber. DETAILED DESCRIPTION

[0038] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0039] Example 1

[0040] according to Figure 1 、 Figure 2、 Figure 4 as well as Figure 5 As shown, a device for dissolving resin on the surface of coated sand comprises a shell 1, a square top plate 2 is detachably mounted on the upper end of the shell 1, a feeding notch 3 is provided on the front of the shell 1, a transparent window 4 is provided on the upper end of the shell 1, a primary dissolving mechanism 5 and a mixing coating mechanism 6 are provided inside the shell 1, a heating dissolving mechanism 7 is provided inside the primary dissolving mechanism 5, an auxiliary feeding mechanism 8 is provided at the lower end of the inner cavity of the shell 1, a shielding and protection mechanism 9 is provided on the inner side of the feeding notch 3, after the quartz sand enters the interior of the shell 1 under the action of the auxiliary feeding mechanism 8, the primary dissolving mechanism 5 and the heating dissolving mechanism 7 will add the dissolved phenolic resin to the interior of the mixing coating mechanism 6, and then the mixing coating mechanism 6 will stir and mix the quartz sand.

[0041] Specifically, the primary dissolution mechanism 5 includes a reaction round tank 501 fixedly mounted on the upper end of the square top plate 2, a fixed protrusion 502 is symmetrically mounted on the outside of the reaction round tank 501, a mounting bracket 503 is detachably mounted on the fixed protrusion 502, an alcohol storage tank 504 is movably mounted on the lower end of the mounting bracket 503, a driving motor 505 for driving the alcohol storage tank 504 to rotate is fixedly mounted on the upper end of the mounting bracket 503, a drainage vertical pipe 506 is fixedly mounted on the lower end of the alcohol storage tank 504, a crushing circular pipe 507 is provided at the lower end of the drainage vertical pipe 506, a side wall blade 508 is provided on the outside of the crushing circular pipe 507, a movable circular plate 509 is slidably connected to the outside of the drainage vertical pipe 506, an avoidance ring groove 510 is provided on the inner wall of the reaction round tank 501, and the alcohol storage tank 50 4 is fixedly installed with a telescopic push rod 511 at the lower end of the telescopic push rod 511, and the lower end of the telescopic push rod 511 is fixedly connected to the movable circular plate 509. The outer surface of the movable circular plate 509 is tightly fitted with the inner wall of the reaction round tank 501, and the outer surface of the drainage vertical pipe 506 is tightly fitted with the movable circular plate 509. The height of the avoidance ring groove 510 matches the thickness of the movable circular plate 509. The movable circular plate 509 can rotate freely when aligned with the avoidance ring groove 510. When the telescopic push rod 511 is extended downward, the movable circular plate 509 will move downward. A discharge assembly 512 is fixedly installed at the lower end of the reaction round tank 501. After the staff pours the phenolic resin particles into the interior of the reaction round tank 501, the alcohol will dissolve the phenolic resin particles. After the dissolution is completed, the phenolic resin will be discharged downward through the discharge assembly 512.

[0042] More specifically, the discharge assembly 512 includes a discharge square tube connected to the interior of the reaction round tank 501. The inner wall of the discharge square tube is coated with an anti-stick coating, and a plurality of circular through holes 513 are opened through the upper end of the discharge square tube. When the dissolved phenolic resin flows downward through the discharge square tube, the alcohol inside will be heated and volatilized, and the volatilized alcohol will be discharged outward through the circular through holes 513.

[0043] In this embodiment, when in use, the staff will first pull out the mounting bracket 503, the alcohol storage tank 504 and the drainage vertical pipe 506 upwards, and then pour the solid phenolic resin particles into the interior of the reaction round tank 501, and finally install the mounting bracket 503, the alcohol storage tank 504, etc. back to the top of the reaction round tank 501.

[0044] Next, the alcohol solution inside the alcohol storage tank 504 will enter the interior of the reaction round tank 501 through multiple drainage vertical pipes 506 and the crushing circular tube 507. Subsequently, the phenolic resin will react with the alcohol and gradually dissolve (a common chemical reaction in the prior art, the specific reaction principle will not be repeated here), thereby completing the primary dissolution of the phenolic resin.

[0045] At the same time, the alcohol storage tank 504 will rotate at a certain speed under the action of the driving motor 505. Since the movable circular plate 509 is aligned with the avoidance ring groove 510 and is in an active state at this time, the rotation of the alcohol storage tank 504 will cause multiple drainage vertical pipes 506 and the crushing circular pipe 507 to rotate synchronously. During the rotation process, the phenolic resin inside the reaction circular tank 501 will be stirred, thereby accelerating the reaction time and increasing the dissolution rate.

[0046] Moreover, since a plurality of side wall blades 508 are provided on the outside of the crushing tube 507, the phenolic resin particles inside the reaction tank 501 will be crushed during the rotation of the crushing tube 507, thereby reducing the volume of some larger particles and also accelerating the dissolution rate.

[0047] After the primary dissolution is completed, the movable circular plate 509 will move the resin downward under the action of the telescopic push rod 511. Since the drainage vertical pipe 506 and the movable circular plate 509, as well as the movable circular plate 509 and the reaction round tank 501 are in a tight fit, the movable circular plate 509 will scrape off the phenolic resin remaining on the drainage vertical pipe 506 and the inner wall of the reaction round tank 501 during the downward movement, and discharge it through the discharge component 512.

[0048] This embodiment provides a primary dissolution mechanism 5, and utilizes the mutual cooperation between the crushing circular tube 507 and the drainage vertical pipe 506 to automatically perform primary dissolution of the phenolic resin, which can effectively shorten the time and energy consumption required for heating and dissolving. In addition, the phenolic resin dissolved in alcohol has a certain fluidity, which is convenient for feeding, and can greatly improve the efficiency of the resin dissolution process. In addition, this embodiment provides a primary dissolution mechanism 5, and utilizes the mutual cooperation between the movable circular plate 509 and the telescopic push rod 511 to automatically scrape off the phenolic resin remaining on the drainage vertical pipe 506 and the reaction round tank 501 after the primary dissolution process is completed, which can not only avoid the waste of resin to a large extent, but also greatly facilitate the subsequent cleaning work.

[0049] Example 2

[0050] according to Figure 2 、 Figure 3 、 Figure 6 、 Figure 7 as well as Figure 8 As shown, based on the first embodiment, the mixing and coating mechanism 6 includes a mixing cylinder 601 movably mounted in the housing 1, a rotating shaft 602 is movably mounted inside the mixing cylinder 601, a stirring motor 603 for driving the rotating shaft 602 is fixedly mounted at the lower end of the rotating shaft 602, a mounting cover 604 is sleeved on the outside of the rotating shaft 602, a fixed connecting rod 605 is provided between the mounting cover 604 and the inner side wall of the mixing cylinder 601, and a stirring assembly 606 is provided on the outside of the lower end of the rotating shaft 602. The upper end of the rotating circular shaft 602 is connected to the driving bevel gear 607, and the upper end of the mounting circular cover 604 is movably installed with a horizontal circular shaft 608. One end of the horizontal circular shaft 608 extends into the inner side of the mounting circular cover 604 and is connected to the driven bevel gear 609. A flip square plate 610 is fixedly installed on the outside of the horizontal circular shaft 608. When the rotating circular shaft 602 rotates under the action of the stirring motor 603, the stirring component 606 will rotate synchronously. When the stirring component 606 rotates, it will stir and mix the materials inside the mixing cylinder 601.

[0051] Specifically, the stirring assembly 606 includes a stirring rod fixedly mounted on the outside of the rotating shaft 602, and mixing rods are evenly spaced at the lower end of the stirring rod. When the rotating shaft 602 rotates, the stirring rod and the mixing rod will rotate synchronously.

[0052] In this embodiment, according to the above content, it can be known that the dissolved phenolic resin will fall into the interior of the mixing cylinder 601 through the discharge square tube. Next, the rotating circular shaft 602 will rotate under the action of the stirring motor 603. When the rotating circular shaft 602 rotates, multiple stirring straight rods and mixing circular rods will rotate synchronously. When the stirring straight rods and mixing circular rods rotate, the quartz sand particles and the phenolic resin will be fully mixed, thereby completing the coating process.

[0053] Moreover, when the rotating circular shaft 602 rotates, the driving bevel gear 607 rotates, and when the driving bevel gear 607 rotates, the driven bevel gear 609 and the horizontal circular shaft 608 rotate synchronously. When the horizontal circular shaft 608 rotates, the flip square plate 610 rotates synchronously. When the flip square plate 610 rotates, the mixed material in the mixing cylinder 601 is circulated and flipped upward, so that the phenolic resin dropped into the mixing cylinder 601 quickly enters the interior of the quartz sand, which can effectively improve efficiency and uniformity.

[0054] This embodiment provides a mixing and coating mechanism 6, and utilizes the mutual cooperation between the stirring component 606 and the flip square plate 610 to automatically stir and mix the quartz sand material inside the mixing cylinder 601, thereby quickly completing the coating process. Moreover, the phenolic resin slowly falls into the interior of the mixing cylinder 601 in batches during the material mixing process, which can greatly improve the uniformity of the resin coating and greatly improve the coating effect. In addition, this embodiment provides a mixing and coating mechanism 6, and utilizes the mutual cooperation between the flip square plate 610 and the horizontal circular shaft 608 to automatically circulate and flip up the mixed material, so that the phenolic resin that has just fallen quickly enters the interior of the quartz sand, avoiding the phenolic resin from being on the surface of the quartz sand for a long time, which can greatly improve the efficiency of the coating process.

[0055] Example 3

[0056] according to Figure 2 、 Figure 9 as well as Figure 10 As shown, on the basis of the above embodiment, the heating and dissolving mechanism 7 includes an electric heater 701 fixedly installed at the lower end of the discharge square tube, a fixed square cover 702 is provided above the circular through hole 513, and an air suction square box 703 is detachably installed on the upper end of the fixed square cover 702, and an installation cavity 704 is provided inside the air suction square box 703, and a water-absorbing cotton board 705 is fixedly installed at the lower end of the installation cavity 704, and an activated carbon board 706 is detachably installed above the water-absorbing cotton board 705. The gas generated by heating is discharged through the circular through hole 513 and enters the interior of the air suction square box 703. Subsequently, the water-absorbing cotton board 705 and the activated carbon board 706 absorb and purify the gas.

[0057] In this embodiment, according to the above content, it can be seen that the phenolic resin dissolved by alcohol will slowly flow downward through the discharge square tube. During the flow, the electric heater 701 will quickly heat the phenolic resin inside the discharge square tube, thereby completing the secondary dissolution, which can improve the resin dissolution effect to a certain extent.

[0058] Moreover, the alcohol mixed in the phenolic resin will evaporate quickly during the heating process, thereby avoiding the adverse effects of the alcohol on the subsequent coating process. There is no need to remove the alcohol separately, and it is easy to use.

[0059] In addition, the water vapor and harmful gases generated during the heating process will enter the interior of the air suction box 703 through the circular through hole 513. Next, the absorbent cotton board 705 will first absorb and filter the water vapor, thereby preventing a large amount of water vapor from directly contacting the activated carbon board 706 and causing its purification ability to decrease. Then, the activated carbon board 706 will adsorb and purify the harmful gases.

[0060] This embodiment provides a heating and dissolving mechanism 7, and utilizes the mutual cooperation between the electric heater 701 and the circular through hole 513 to automatically and quickly heat the phenolic resin in a flowing state, thereby completing the secondary dissolution of the phenolic resin, and can dissolve some resin particles that have not been completely dissolved, thereby greatly improving the quality of the resin dissolution processing; moreover, this embodiment provides a heating and dissolving mechanism 7, and utilizes the mutual cooperation between the fixed square cover 702 and the air suction square box 703 to automatically absorb and remove harmful gases generated during the resin heating process, thereby preventing these harmful gases from causing damage to the surrounding environment and staff.

[0061] Example 4

[0062] according to Figure 1-Figure 3 as well as Figure 11 As shown, on the basis of the above embodiment, the auxiliary feeding mechanism 8 includes a fixed square rail 801 fixedly installed at the lower end of the inner cavity of the shell 1, and a sliding base 802 is movably installed inside the fixed square rail 801. The upper end of the sliding base 802 is fixedly connected to the mixing cylinder 601, and a touch switch 803 is provided at the end of the fixed square rail 801. The front of the sliding base 802 is fixedly connected to a horizontal pull rod 804, and a loading platform 805 is provided on the outside of the feed notch 3. When the staff pulls the horizontal pull rod 804, the sliding base 802 will move horizontally along the fixed square rail 801, and when the sliding base 802 moves, the mixing cylinder 601 will move synchronously.

[0063] In this embodiment, the mixing cylinder 601 is initially located above the loading platform 805. After the staff pours the pre-treated quartz sand into the interior of the mixing cylinder 601, the mixing cylinder 601 is pushed into the interior of the shell 1 through the horizontal pull rod 804 to complete the feeding. Moreover, after the feeding is completed, the sliding base 802 will contact the touch switch 803 and turn it on.

[0064] Next, the primary dissolving mechanism 5 and the heating dissolving mechanism 7 will transport the dissolved phenolic resin to the interior of the mixing cylinder 601. Subsequently, the mixing coating mechanism 6 will uniformly stir and mix the quartz sand to complete the coating process.

[0065] After the processing is completed, the staff will pull the mixing cylinder 601 outward through the horizontal pull rod 804 to complete the unloading. During the unloading process, the touch switch 803 will automatically disconnect.

[0066] This embodiment provides an auxiliary feeding mechanism 8 and utilizes the mutual cooperation between the sliding base 802 and the horizontal pull rod 804 to help workers quickly complete feeding and unloading, thereby saving time and effort. Moreover, during the coating process, workers can observe the processing status through the transparent window 4 at all times, which is convenient to use.

[0067] Example 5

[0068] according to Figure 3 and Figure 12 As shown, on the basis of the above embodiment, the shielding and protection mechanism 9 includes a vertical rail 901 fixedly installed on the inner side of the feed notch 3, and the vertical rails 901 are symmetrically arranged on the left and right sides of the feed notch 3. A guide round rod is fixedly installed inside the left vertical rail 901, and a vertical screw 902 is movably installed inside the right vertical rail 901. Movable sliders 903 are provided on the outside of the guide round rod and the vertical screw 902. The movable slider 903 is threadedly engaged with the vertical screw 902. A winding assembly 904 is movably installed on the upper end of the vertical rail 901, and a fixed round rod 905 is provided between the two movable sliders 903. A flexible rubber 906 is provided inside the winding assembly 904. After the feeding is completed, the flexible rubber 906 will be blocked outside the feed notch 3 with the cooperation of the winding assembly 904 and the fixed round rod 905.

[0069] Specifically, the winding assembly 904 includes a mounting base fixedly mounted on the upper end of the vertical track 901, on which a winding cylinder is movably mounted. A coil spring is provided inside the winding cylinder. One end of the flexible rubber 906 is fixedly connected to the winding cylinder, and the other end of the flexible rubber 906 is fixedly connected to the fixed round rod 905. A micro motor for driving the vertical screw 902 to rotate is fixedly mounted on the lower end of the vertical track 901. The micro motor is electrically connected to the touch switch 803 via a wire. When the touch switch 803 is turned on, the micro motor drives the vertical screw 902 to rotate forward, causing the movable slider 903 to move downward. When the touch switch 803 is turned off, the micro motor drives the vertical screw 902 to rotate reversely, causing the movable slider 903 to move upward. When the movable slider 903 moves vertically downward, it causes the fixed round rod 905 to move downward synchronously. When the fixed round rod 905 moves downward, the flexible rubber 906 is blocked outside the feed gap 3.

[0070] In this embodiment, according to the above content, it can be known that when feeding, the sliding base 802 will contact the touch switch 803 to turn it on. After the touch switch 803 is turned on, the vertical screw 902 will rotate forward under the action of the micro motor, causing the movable slider 903 to move downward. When the movable slider 903 moves downward, it will cooperate with the fixed round rod 905 to pull the flexible rubber 906 rolled up on the outside of the winding cylinder downward, so that the flexible rubber 906 blocks the feeding gap 3.

[0071] During unloading, the sliding base 802 will separate from the touch switch 803, and then the movable slider 903 will move vertically upward. At the same time, the winding cylinder will rewind the flexible rubber 906 under the action of the winding spring, so that the flexible rubber 906 will no longer block the feed gap 3.

[0072] This embodiment provides a shielding and protection mechanism 9, and utilizes the mutual cooperation between the winding component 904 and the movable slider 903 to automatically shield and protect the feed gap 3 after the feeding is completed. It can effectively prevent external dust and other impurities from entering the interior of the shell 1 and having an adverse effect on the coating process, and can also prevent the harmful gases generated during the mixed coating process from drifting outward through the feed gap 3 to a certain extent.

[0073] The control method of the present invention is automatic control through a controller. The control circuit of the controller can be implemented by simple programming by a person skilled in the art. The provision of power is also common knowledge in the art. The present invention is mainly used to protect mechanical devices, so the control method and circuit connection are not explained in detail in the present invention.

[0074] It should be noted that, in this article, the terms "comprises", "includes" or any other variations thereof are intended to cover non-exclusive inclusion, so that a process, method, article or apparatus that includes a series of elements includes not only those elements, but also includes other elements not explicitly listed, or also includes elements that are inherent to such process, method, article or apparatus.

[0075] While embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions, and variations may be made to these embodiments without departing from the principles and spirit of the invention, and that the scope of the invention is defined by the appended claims and their equivalents.

Claims

1. A device for dissolving resin on the surface of coated sand, comprising a housing (1), a square top plate (2) being detachably mounted on the upper end of the housing (1), a feed notch (3) being provided on the front of the housing (1), and a transparent window (4) being provided on the upper end of the housing (1), characterized in that: The shell (1) is provided with a primary dissolving mechanism (5) and a mixing and coating mechanism (6), the primary dissolving mechanism (5) is provided with a heating and dissolving mechanism (7), the lower end of the inner cavity of the shell (1) is provided with an auxiliary feeding mechanism (8), and the inner side of the feeding notch (3) is provided with a shielding and protection mechanism (9); The primary dissolving mechanism (5) comprises a reaction round tank (501) fixedly mounted on the upper end of a square top plate (2), a fixed protrusion (502) symmetrically mounted on the outside of the reaction round tank (501), a mounting bracket (503) detachably mounted on the fixed protrusion (502), an alcohol storage tank (504) movably mounted on the lower end of the mounting bracket (503), a driving motor (505) for driving the alcohol storage tank (504) to rotate fixedly mounted on the upper end of the mounting bracket (503), and a lower end of the alcohol storage tank (504) A drainage vertical pipe (506) is fixedly installed, a crushing circular pipe (507) is provided at the lower end of the drainage vertical pipe (506), a side wall blade (508) is provided on the outside of the crushing circular pipe (507), a movable circular plate (509) is slidably connected to the outside of the drainage vertical pipe (506), an avoidance ring groove (510) is provided on the inner side wall of the reaction circular tank (501), a telescopic push rod (511) is fixedly installed at the lower end of the alcohol storage tank (504), and a discharge assembly (512) is fixedly installed at the lower end of the reaction circular tank (501); The discharge assembly (512) includes a discharge square tube connected to the interior of the reaction round tank (501), the inner wall of the discharge square tube is coated with an anti-stick coating, and the upper end of the discharge square tube is penetrated by a plurality of circular through holes (513); The heating and dissolving mechanism (7) comprises an electric heater (701) fixedly mounted at the lower end of the discharge square tube, a fixed square cover (702) is provided above the circular through hole (513), an air suction square box (703) is detachably mounted on the upper end of the fixed square cover (702), an installation cavity (704) is provided inside the air suction square box (703), a water-absorbing cotton board (705) is fixedly mounted at the lower end of the installation cavity (704), and an activated carbon board (706) is detachably mounted above the water-absorbing cotton board (705).

2. The device for dissolving resin on the surface of coated sand according to claim 1, characterized in that: The lower end of the telescopic push rod (511) is fixedly connected to the movable circular plate (509), the outer surface of the movable circular plate (509) is tightly fitted with the inner wall of the reaction round tank (501), the outer surface of the drainage vertical pipe (506) is tightly fitted with the movable circular plate (509), and the height of the avoidance ring groove (510) matches the thickness of the movable circular plate (509).

3. The device for dissolving resin on the surface of coated sand according to claim 1, characterized in that: The mixing and coating mechanism (6) comprises a mixing cylinder (601) movably mounted in a housing (1); a rotating shaft (602) is movably mounted inside the mixing cylinder (601); a stirring motor (603) for driving the rotating shaft (602) is fixedly mounted at the lower end of the rotating shaft (602); a mounting cover (604) is sleeved on the outside of the rotating shaft (602); a fixed contact is provided between the mounting cover (604) and the inner side wall of the mixing cylinder (601); A connecting rod (605) is provided on the outside of the lower end of the rotating circular shaft (602), a stirring assembly (606) is provided on the outside, the upper end of the rotating circular shaft (602) is connected to a driving bevel gear (607), a horizontal circular shaft (608) is movably installed on the upper end of the mounting circular cover (604), one end of the horizontal circular shaft (608) extending into the inner side of the mounting circular cover (604) is connected to a driven bevel gear (609), and a flip square plate (610) is fixedly installed on the outside of the horizontal circular shaft (608).

4. The device for dissolving resin on the surface of coated sand according to claim 3, characterized in that: The stirring assembly (606) comprises a stirring rod fixedly mounted on the outside of the rotating circular shaft (602), and mixing rods are arranged at equal intervals at the lower end of the stirring rod.

5. The device for dissolving resin on the surface of coated sand according to claim 3, characterized in that: The auxiliary feeding mechanism (8) comprises a fixed square rail (801) fixedly mounted at the lower end of the inner cavity of the shell (1); a sliding base (802) is movably mounted inside the fixed square rail (801); the upper end of the sliding base (802) is fixedly connected to the mixing cylinder (601); a touch switch (803) is provided at the end of the fixed square rail (801); a horizontal pull rod (804) is fixedly connected to the front of the sliding base (802); and a loading platform (805) is provided on the outer side of the feeding notch (3).

6. The device for dissolving resin on the surface of coated sand according to claim 1, characterized in that: The shielding and protection mechanism (9) comprises a vertical track (901) fixedly mounted on the inner side of the feed notch (3), the vertical track (901) being symmetrically arranged on the left and right sides of the feed notch (3), a guide round rod being fixedly mounted inside the left vertical track (901), a vertical screw rod (902) being movably mounted inside the right vertical track (901), movable sliders (903) being arranged on the outside of both the guide round rod and the vertical screw rod (902), the movable slider (903) being threadedly engaged with the vertical screw rod (902), a winding assembly (904) being movably mounted on the upper end of the vertical track (901), a fixed round rod (905) being arranged between the two movable sliders (903), and a flexible rubber (906) being arranged inside the winding assembly (904).

7. The device for dissolving resin on the surface of coated sand according to claim 6, characterized in that: The winding assembly (904) includes a mounting base fixedly mounted on the upper end of the vertical track (901), a winding cylinder movably mounted on the mounting base, a coil spring provided inside the winding cylinder, one end of the flexible rubber (906) fixedly connected to the winding cylinder, and the other end of the flexible rubber (906) fixedly connected to the fixed round rod (905), and a micro motor for driving the vertical screw (902) to rotate is fixedly mounted on the lower end of the vertical track (901).

8. The device for dissolving resin on the surface of coated sand according to claim 7, characterized in that: The micro motor and the touch switch (803) are electrically connected via a wire.

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