Casting sand hopper

Abstract

The utility model is suitable for the technical field of casting sand hoppers, and provides a casting sand hopper which comprises a sand hopper, a discharge port is formed in the bottom of the sand hopper, anti-blocking mechanisms are installed inside and outside the sand hopper, and the anti-blocking mechanisms are used for hammering clay inside the sand hopper. The anti-blocking mechanism comprises a crushing assembly and a screen assembly, the crushing assembly is used for crushing clay in the sand hopper, and the screen assembly is used for screening and filtering the crushed clay. According to the utility model, the anti-blocking mechanism is arranged, so that a plurality of crushing hammers in a rotating state are used for hammering clay, the caked clay in the sand hopper is hammered to be in a fine state, and the screen performs reciprocating lifting movement in the sand hopper and is in a vibration state, and the screen in the vibration state is used for screening and filtering the crushed clay; the condition that clay blocks the discharging port can be avoided, and the shakeout efficiency of the casting sand hopper is effectively improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of casting sand hoppers, and particularly relates to a casting sand hopper. Background Technique

[0002] Casting is a method of pouring liquid metal into a casting cavity adapted to the shape of a part, and waiting for it to cool and solidify to obtain a part or a blank. The material to be cast is mostly metal heated from a solid state to a liquid state, and the material of the casting mold can be sand, metal or ceramic.

[0003] Sand casting uses clay-bonded sand as the casting material to produce castings. During this manufacturing process, a casting sand hopper is required to feed the clay. Currently, the clay is poured into the interior of the casting sand hopper through the feed port of the casting sand hopper, and the clay is discharged through the discharge port of the casting sand hopper. However, during the sand falling process, due to the viscosity of the clay, after a long time, the clay will adhere to the discharge port of the casting sand hopper, easily causing the discharge port of the casting sand hopper to be blocked, which affects the sand falling efficiency of the casting sand hopper. Content of the Utility Model

[0004] The utility model provides a casting sand hopper, aiming to solve the problems mentioned in the above background technique.

[0005] The utility model is implemented as follows. A casting sand hopper includes a sand hopper. A discharge port is provided at the bottom of the sand hopper. An anti-blocking mechanism is installed inside and outside the sand hopper. The anti-blocking mechanism is used to hammer the clay inside the sand hopper.

[0006] The anti-blocking mechanism includes a crushing component and a screen component.

[0007] The crushing component is used to hammer the clay inside the sand hopper.

[0008] The screen component is used to screen and filter the crushed clay.

[0009] Preferably, the crushing component includes a motor, a rotating shaft and a crushing hammer.

[0010] The motor is installed outside the sand hopper through a fixing frame. The rotating shaft is rotatably connected to the inner wall of the sand hopper and extends to the outside thereof. The end of the output shaft of the motor is connected to the rotating shaft. The crushing hammer is installed on the outer wall of the rotating shaft.

[0011] Preferably, the output shaft of the motor in the operating state is used to drive the rotating shaft to rotate. The rotating shaft in the rotating state is used to drive a plurality of the crushing hammers to rotate. And a plurality of the rotating crushing hammers are used to hammer the agglomerated clay.

[0012] Preferably, the screen assembly includes a screen, a connecting frame, a through groove, an "L"-shaped connecting rod, a roller, a bracket, a telescopic rod, a spring, an eccentric block, a "T"-shaped chute and a "T"-shaped slider;

[0013] The telescopic rod includes a sleeve and a sliding rod, and the sliding rod is slidably connected up and down in the inner cavity of the sleeve;

[0014] The screen is slidably connected up and down to the inner wall of the sand hopper, the connecting frame is fixedly connected to the end of the screen, and the through groove is opened on the outer wall of the sand hopper and completely penetrates;

[0015] The horizontal and vertical parts of the "L"-shaped connecting rod are slidably connected up and down inside the through groove, the roller is rotatably installed at the top of the vertical part of the "L"-shaped connecting rod, the bracket is fixedly connected to the outer wall of the sand hopper, the sleeve is fixedly connected to the top of the bracket, the sliding rod is fixedly connected to the bottom end of the vertical part of the "L"-shaped connecting rod, the spring is sleeved outside the telescopic rod, and both ends of the spring are fixedly connected to the sleeve and the sliding rod respectively;

[0016] One end of the eccentric block is fixedly assembled on the outer wall of the rotating shaft, the "T"-shaped chute is opened on the inner wall of the sand hopper, and the "T"-shaped slider is slidably connected up and down inside the "T"-shaped chute.

[0017] Preferably, the screen is in an arc structure, the screen in the reset state is fixedly connected to the "T"-shaped slider, and the center of the screen is coaxial with the center of the rotating shaft.

[0018] Preferably, the eccentric block in the rotating state is used to squeeze the "L"-shaped connecting rod through the roller, and the "L"-shaped connecting rod in the compressed state is used to squeeze the telescopic rod and the spring.

[0019] Preferably, the telescopic rod and the spring in the compressed state are used to assist the screen to move downward through the "L"-shaped connecting rod, and the telescopic rod and the spring in the reset state are used to drive the screen to move upward through the "L"-shaped connecting rod.

[0020] Compared with the prior art, the embodiments of the present application mainly have the following beneficial effects:

[0021] In the present utility model, by arranging an anti-blocking mechanism, a plurality of crushing hammers in the rotating state hammer the clay, so that the agglomerated clay inside the sand hopper is hammered into a fine state, and the screen reciprocates up and down inside the sand hopper, and the screen is in a vibrating state. The vibrating screen screens and filters the crushed clay, which can avoid the situation of clay blocking the discharge port and effectively improve the sand falling efficiency of the casting sand hopper. Description of the Drawings

[0022] Figure 1 It is a schematic cross-sectional structure diagram of the sand hopper provided by the present utility model;

[0023] Figure 2 is provided by the present utility model Figure 1 schematic diagram of structure A in

[0024] Figure 3 It is a schematic structural diagram of the anti-clogging mechanism provided by the present utility model;

[0025] Figure 4 It is a schematic diagram of another perspective structure of the anti-clogging mechanism provided by the present utility model.

[0026] In the figure: 1. Sand hopper; 2. Discharge port; 3. Anti-clogging mechanism; 301. Screen; 302. Connecting frame; 303. Through groove; 304. "L"-shaped connecting rod; 305. Roller; 306. Bracket; 307. Telescopic rod; 308. Spring; 309. Motor; 3010. Rotating shaft; 3011. Crushing hammer; 3012. Eccentric block; 3013. "T"-shaped chute; 3014. "T"-shaped slider. Specific embodiments

[0027] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by those of ordinary skill in the technical field to which this application belongs; the terms used in the specification of this application are only for the purpose of describing specific embodiments and are not intended to limit this application; the terms "including" and "having" and any variations thereof in the specification and claims of this application and the above drawings are intended to cover non-exclusive inclusion. The terms "first", "second", etc. in the specification and claims of this application or the above drawings are used to distinguish different objects and not to describe a specific order.

[0028] Reference to "embodiment" herein means that a particular feature, structure, or characteristic described in connection with the embodiment can be included in at least one embodiment of this application. The phrase appears in various places in the specification and does not necessarily refer to the same embodiment, nor is it an independent or alternative embodiment mutually exclusive with other embodiments. Those skilled in the art will explicitly and implicitly understand that the embodiments described herein can be combined with other embodiments.

[0029] An embodiment of the present utility model provides a foundry sand hopper, as Figures 1-4 shown, including a sand hopper 1, a discharge port 2 is provided at the bottom of the sand hopper 1, and an anti-clogging mechanism 3 is installed inside and outside the sand hopper 1, and the anti-clogging mechanism 3 is used to hammer the clay inside the sand hopper 1;

[0030] The anti-clogging mechanism 3 includes a crushing assembly and a screen assembly;

[0031] The crushing component is used to hammer the clay inside the sand hopper 1;

[0032] The screen component is used to screen and filter the crushed clay.

[0033] In this embodiment, first, the motor 309 is powered on and runs. The output shaft of the powered-on motor 309 drives the rotating shaft 3010 to rotate. The rotating shaft 3010 in the rotating state drives a plurality of crushing hammers 3011 to rotate, so that the plurality of rotating crushing hammers 3011 crush the clay, thereby crushing the caked clay inside the sand hopper 1 into a fine state;

[0034] While the rotating shaft 3010 rotates, it also drives the eccentric block 3012 to rotate. When the eccentric block 3012 rotates to the vertical state, one end of the eccentric block 3012 contacts the roller 305, and the rotating eccentric block 3012 squeezes the "L"-shaped connecting rod 304 through the roller 305, so that the "L"-shaped connecting rod 304 drives the connecting frame 302 to move downward along the track of the through groove 303 under the force. The connecting frame 302 in the downward moving state drives the screen 301 to move downward. At the same time, the "L"-shaped connecting rod 304 in the downward moving state squeezes the telescopic rod 307 and the spring 308, and the telescopic rod 307 and the spring 308 are compressed under the force. Then, when one end of the eccentric block 3012 separates from the roller 305, the reset telescopic rod 307 and spring 308 drive the "L"-shaped connecting rod 304 to move upward. The "L"-shaped connecting rod 304 in the upward moving state drives the screen 301 to move upward through the connecting frame 302, and the "T"-shaped slider 3014 moves up and down along the track of the "T"-shaped chute 3013. The "T"-shaped slider 3014 assists the screen 301 to move smoothly. Thus, the screen 301 reciprocates up and down inside the sand hopper 1, and the screen 301 is in a vibrating state. The vibrating screen 301 screens and filters the crushed clay, effectively avoiding the situation of clay clogging the discharge port 2.

[0035] In a further preferred embodiment of the present utility model, as Figure 4 shown, the crushing component includes a motor 309, a rotating shaft 3010 and crushing hammers 3011;

[0036] The motor 309 is installed outside the sand hopper 1 through a fixing frame. The rotating shaft 3010 is rotatably connected to the inner wall of the sand hopper 1 and extends outward therefrom. The end of the output shaft of the motor 309 is connected to the rotating shaft 3010, and the crushing hammers 3011 are installed on the outer wall of the rotating shaft 3010.

[0037] In this embodiment, the motor 309 is powered on and operated. The output shaft of the motor 309 in the powered-on state drives the rotating shaft 3010 to rotate. The rotating shaft 3010 in the rotating state drives a plurality of breaker hammers 3011 to rotate, so that the plurality of breaker hammers 3011 in the rotating state break the clay, thereby breaking the caked clay inside the sand hopper 1 into a fine state.

[0038] In a further preferred embodiment of the present invention, as Figure 4 shown, the output shaft of the motor 309 in the operating state is used to drive the rotating shaft 3010 to rotate. The rotating shaft 3010 in the rotating state is used to drive a plurality of breaker hammers 3011 to rotate, and the plurality of breaker hammers 3011 in the rotating state are used to hammer the caked clay.

[0039] In this embodiment, the output shaft of the motor 309 in the powered-on state drives the rotating shaft 3010 to rotate. The rotating shaft 3010 in the rotating state drives a plurality of breaker hammers 3011 to rotate, so that the plurality of breaker hammers 3011 in the rotating state break the clay.

[0040] In a further preferred embodiment of the present invention, as Figure 2 shown, the screen assembly includes a screen 301, a connecting frame 302, a through groove 303, an "L"-shaped connecting rod 304, a roller 305, a bracket 306, a telescopic rod 307, a spring 308, an eccentric block 3012, a "T"-shaped chute 3013 and a "T"-shaped slider 3014;

[0041] The telescopic rod 307 includes a sleeve and a sliding rod. The sliding rod is slidably connected up and down inside the inner cavity of the sleeve;

[0042] The screen 301 is slidably connected up and down to the inner wall of the sand hopper 1. The connecting frame 302 is fixedly connected to the end of the screen 301. The through groove 303 is opened on the outer wall of the sand hopper 1 and completely penetrates;

[0043] The horizontal and vertical parts of the "L"-shaped connecting rod 304 are slidably connected up and down inside the through groove 303. The roller 305 is rotatably installed at the top of the vertical part of the "L"-shaped connecting rod 304. The bracket 306 is fixedly connected to the outer wall of the sand hopper 1. The sleeve is fixedly connected to the top of the bracket 306. The sliding rod is fixedly connected to the bottom end of the vertical part of the "L"-shaped connecting rod 304. The spring 308 is sleeved outside the telescopic rod 307, and the two ends of the spring 308 are respectively fixedly connected to the sleeve and the sliding rod;

[0044] One end of the eccentric block 3012 is fixedly assembled to the outer wall of the rotating shaft 3010. The "T"-shaped chute 3013 is opened on the inner wall of the sand hopper 1. The "T"-shaped slider 3014 is slidably connected up and down inside the "T"-shaped chute 3013.

[0045] In this embodiment, when the rotating shaft 3010 rotates, it also drives the eccentric block 3012 to rotate. When the eccentric block 3012 rotates to the vertical state, one end of the eccentric block 3012 contacts the roller 305, and the rotating eccentric block 3012 squeezes the "L"-shaped connecting rod 304 through the roller 305, causing the "L"-shaped connecting rod 304 to drive the connecting frame 302 to move downward along the trajectory of the through groove 303 under force. The connecting frame 302 in the downward moving state drives the screen 301 to move downward. At the same time, the "L"-shaped connecting rod 304 in the downward moving state squeezes the telescopic rod 307 and the spring 308, and the telescopic rod 307 and the spring 308 are compressed under force. Then, when one end of the eccentric block 3012 separates from the roller 305, the restored telescopic rod 307 and spring 308 drive the "L"-shaped connecting rod 304 to move upward. The "L"-shaped connecting rod 304 in the upward moving state drives the screen 301 to move upward through the connecting frame 302, and the "T"-shaped slider 3014 moves up and down along the trajectory of the "T"-shaped chute 3013. The "T"-shaped slider 3014 assists the screen 301 to move smoothly. Thus, the screen 301 reciprocates up and down inside the sand hopper 1.

[0046] In a further preferred embodiment of the present utility model, as Figure 3 shown, the screen 301 has an arc-shaped structure. The screen 301 is fixedly connected to the "T"-shaped slider 3014. The center of the restored screen 301 is coaxial with the center of the rotating shaft 3010.

[0047] In this embodiment, the "T"-shaped slider 3014 moves up and down along the trajectory of the "T"-shaped chute 3013, and the "T"-shaped slider 3014 assists the screen 301 to move smoothly.

[0048] In a further preferred embodiment of the present utility model, as Figure 1 shown, the rotating eccentric block 3012 is used to squeeze the "L"-shaped connecting rod 304 through the roller 305, and the "L"-shaped connecting rod 304 in the compressed state is used to squeeze the telescopic rod 307 and the spring 308.

[0049] In this embodiment, the rotating eccentric block 3012 squeezes the "L"-shaped connecting rod 304 through the roller 305, causing the "L"-shaped connecting rod 304 to drive the connecting frame 302 to move downward along the trajectory of the through groove 303 under force. The connecting frame 302 in the downward moving state drives the screen 301 to move downward. At the same time, the "L"-shaped connecting rod 304 in the downward moving state squeezes the telescopic rod 307 and the spring 308, and the telescopic rod 307 and the spring 308 are compressed under force.

[0050] In a further preferred embodiment of the present utility model, as Figure 1As shown, the telescopic rod 307 and the spring 308 in the compressed state are used to assist the screen 301 to move downward through the "L"-shaped connecting rod 304, and the telescopic rod 307 and the spring 308 in the reset state are used to drive the screen 301 to move upward through the "L"-shaped connecting rod 304.

[0051] In this embodiment, when one end of the eccentric block 3012 is separated from the roller 305, the telescopic rod 307 and the spring 308 in the reset state drive the "L"-shaped connecting rod 304 to move upward, and the "L"-shaped connecting rod 304 in the upward moving state drives the screen 301 to move upward through the connecting frame 302.

[0052] It should be noted that for the foregoing embodiments, for the sake of simple description, they are all expressed as a series of action combinations. However, those skilled in the art should know that the present invention is not limited by the described action sequence, because according to the present invention, certain steps may be performed in other sequences or simultaneously. Secondly, those skilled in the art should also know that the embodiments described in the specification are all preferred embodiments, and the actions and modules involved are not necessarily essential to the present invention.

[0053] In several embodiments provided by the present application, it should be understood that the disclosed device can be implemented in other ways. For example, the device embodiments described above are merely illustrative. For example, the above division of units can be implemented in other ways in actual implementation. For example, multiple units or components can be combined or integrated into another system, or some features can be ignored or not executed. Another point, the displayed or discussed coupling or communication connection between each other can be through some interfaces, and the indirect coupling or communication connection between devices or units can be in the form of telecommunications or other forms.

[0054] The units described above as separate components may or may not be physically separated, and the components displayed as units may or may not be physical units, that is, they may be located in one place, or may be distributed to multiple network units. Some or all of the units can be selected according to actual needs to achieve the purpose of the solution of this embodiment.

[0055] The above embodiments are only used to illustrate the technical solutions of the present utility model, rather than limiting the protection scope of the utility model. Obviously, the described embodiments are only some embodiments of the present utility model, rather than all embodiments. Based on these embodiments, all other embodiments obtained by those of ordinary skill in the art without creative efforts fall within the scope of protection of the present utility model. Although the present utility model has been described in detail with reference to the above embodiments, those of ordinary skill in the art can still, without conflict and without creative efforts, combine, add or delete the features in the embodiments of the present utility model according to the circumstances or make other adjustments, so as to obtain different technical solutions that essentially do not depart from the concept of the present utility model, and these technical solutions also fall within the scope of protection of the present utility model.

Claims

1. A foundry sand hopper, comprising a sand hopper (1), and a discharge port (2) is provided at the bottom of the sand hopper (1), characterized in that, An anti-clogging mechanism (3) is installed inside and outside the sand hopper (1), and the anti-clogging mechanism (3) is used to hammer the clay inside the sand hopper (1); The anti-clogging mechanism (3) includes a crushing component and a screen component; The crushing component is used to hammer the clay inside the sand hopper (1); The screen component is used to screen and filter the crushed clay; The crushing component includes a motor (309), a rotating shaft (3010) and a crushing hammer (3011); The motor (309) is installed outside the sand hopper (1) through a fixing frame, the rotating shaft (3010) is rotatably connected to the inner wall of the sand hopper (1) and extends to the outside thereof, the end of the output shaft of the motor (309) is connected to the rotating shaft (3010), and the crushing hammer (3011) is installed on the outer wall of the rotating shaft (3010); The output shaft of the motor (309) in the running state is used to drive the rotating shaft (3010) to rotate, the rotating shaft (3010) in the rotating state is used to drive a plurality of the crushing hammers (3011) to rotate, and a plurality of the crushing hammers (3011) in the rotating state are used to hammer the caked clay; The screen component includes a screen (301), a connecting frame (302), a through groove (303), an "L"-shaped connecting rod (304), a roller (305), a bracket (306), a telescopic rod (307), a spring (308), an eccentric block (3012), a "T"-shaped chute (3013) and a "T"-shaped slider (3014); The telescopic rod (307) includes a sleeve and a sliding rod, and the sliding rod is slidably connected up and down in the inner cavity of the sleeve; The screen (301) is slidably connected up and down to the inner wall of the sand hopper (1), the connecting frame (302) is fixedly connected to the end of the screen (301), and the through groove (303) is opened on the outer wall of the sand hopper (1) and completely penetrates; The horizontal and vertical parts of the "L"-shaped connecting rod (304) are slidably connected inside the through groove (303), the roller (305) is rotatably installed at the top of the vertical part of the "L"-shaped connecting rod (304), the bracket (306) is fixedly connected to the outer wall of the sand hopper (1), the sleeve is fixedly connected to the top of the bracket (306), the sliding rod is fixedly connected to the bottom end of the vertical part of the "L"-shaped connecting rod (304), the spring (308) is sleeved outside the telescopic rod (307), and both ends of the spring (308) are fixedly connected to the sleeve and the sliding rod respectively; One end of the eccentric block (3012) is fixedly assembled on the outer wall of the rotating shaft (3010), the "T"-shaped chute (3013) is opened on the inner wall of the sand hopper (1), and the "T"-shaped slider (3014) is slidably connected up and down inside the "T"-shaped chute (3013).

2. The foundry sand hopper according to claim 1, characterized in that, The screen (301) is in an arc structure, the screen (301) is fixedly connected to the "T"-shaped slider (3014), and the center of the screen (301) in the reset state is coaxial with the center of the rotating shaft (3010).

3. The foundry sand hopper according to claim 2, characterized in that, The eccentric block (3012) in the rotating state is used to squeeze the "L"-shaped connecting rod (304) through the roller (305), and the "L"-shaped connecting rod (304) in the compressed state is used to squeeze the telescopic rod (307) and the spring (308).

4. The foundry sand hopper according to claim 3, characterized in that, The telescopic rod (307) and the spring (308) in the compressed state are used to assist the screen (301) to move downward through the "L"-shaped connecting rod (304), and the telescopic rod (307) and the spring (308) in the reset state are used to drive the screen (301) to move upward through the "L"-shaped connecting rod (304).

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