Foundry molding sand feeding device

Abstract

The utility model discloses a foundry sand feeding device. Comprising a screening mechanism and a conveying mechanism, and the conveying mechanism is arranged on the lower portion of the screening mechanism; the screening mechanism comprises a screening cylinder, a rotating shaft rod is arranged in the screening cylinder, one end of the rotating shaft rod is connected with a first servo motor, a plurality of crushing rollers are installed on the rotating shaft rod, and a plurality of discharging holes are formed in the bottom of the screening cylinder. The conveying mechanism comprises a base, a lead screw is installed in one side of the base, one end of the lead screw is connected with a second servo motor, the lead screw is in threaded connection with two moving blocks, the upper ends of the two moving blocks are connected with a material receiving plate, and a servo electric cylinder is installed at the bottom of the material receiving plate. The casting molding sand is crushed and screened through the screening mechanism, the casting molding sand is conveyed through the conveying mechanism, and therefore the casting molding sand is prevented from caking and hardening, and the casting molding sand is conveniently discharged through the conveying mechanism.

Description

TECHNICAL FIELD

[0001] The utility model belongs to foundry sand technical field especially relates to a foundry sand feeding device. BACKGROUND

[0002] Sand casting refers to the casting method for producing castings in sand molds. Steel, iron and most non-ferrous alloy castings can be obtained by sand casting method. Because the molding material used in sand casting is cheap and easy to obtain, the casting mold manufacturing is simple, and it can adapt to single production, batch production and mass production of castings. For a long time, it has been a basic process in casting production.

[0003] The material used to manufacture sand molds is called molding material, and the material used to manufacture sand molds is called sand. The molding material used to manufacture sand cores is called core sand. Usually, sand is mixed with sand (mountain sand or river sand), clay and water in a certain proportion, of which clay is about 9%, water is about 6%, and the rest is sand. Sometimes a small amount of additives such as coal powder, vegetable oil and wood chips are added to improve the performance of sand and core sand.

[0004] When the foundry sand is used, the foundry sand needs to be transported and fed, so as to be transported into the sand box, so as to realize the casting of the mold, and facilitate the subsequent pouring.

[0005] However, the prior art has some problems: the existing foundry sand is easy to be clumped and hardened after use, and if it is directly put into the sand box for use, it is easy to cause the foundry sand to be not completely formed, and to be scattered, so as to realize stable pouring, and the foundry sand is not convenient to discharge during transportation. Therefore, we propose a foundry sand feeding device. Utility model content

[0006] In view of the problems existing in the prior art, the utility model aims at providing a foundry sand feeding device, which realizes crushing and screening of the foundry sand through the screening mechanism, and transports the foundry sand through the conveying mechanism, so as to prevent the foundry sand from being clumped and hardened, and facilitate the discharge of the foundry sand.

[0007] The utility model is realized in this way, a foundry sand feeding device, including screening mechanism and conveying mechanism, the conveying mechanism sets up in the lower part of screening mechanism;

[0008] The screening mechanism includes a screening cylinder, a rotating shaft is arranged in the interior of the screening cylinder, one end of the rotating shaft is connected with a first servo motor, a plurality of crushing rollers are fixedly installed on the rotating shaft, and a plurality of discharge holes are formed in the bottom of the screening cylinder.

[0009] The transport mechanism includes a base, a lead screw is internally mounted on one side of the base, a second servo motor is connected to one end of the lead screw, two moving blocks are threadedly connected to the lead screw, a receiving plate is movably connected to the upper ends of the two moving blocks, a U-shaped plate is fixedly arranged on the upper end of the receiving plate, and a servo cylinder is movably arranged at the bottom of the receiving plate.

[0010] Specifically, the upper end of the screening cylinder is provided with a feeding hole, the feeding hole is connected with a feeding pipe, and the upper end of the feeding pipe is fixedly connected with a storage hopper.

[0011] Specifically, the lower part of the screening cylinder is communicated with a discharging box, the bottom of the discharging box is fixedly communicated with a discharging pipe, and a plurality of discharging holes are arranged in the discharging box.

[0012] Specifically, one end of the screening cylinder is welded with a first mounting plate, the first servo motor is fixedly mounted on the first mounting plate, the other end of the screening cylinder is fixedly mounted with a limiting strip, the limiting strip is movably mounted with a baffle in the inside, and four supporting legs are welded at the bottom of the screening cylinder.

[0013] Specifically, one end of the base is welded with a second mounting plate, and the second servo motor is fixedly mounted on the second mounting plate.

[0014] Specifically, one end of the receiving plate is fixedly provided with two first connecting blocks at the bottom, the two first connecting blocks are movably connected with the two moving blocks through a pin shaft, and the bottom of the two moving blocks is commonly welded with a third mounting plate.

[0015] Specifically, the upper surface of the third mounting plate is fixedly provided with a second connecting block in the middle, one end of the receiving plate is fixedly provided with a third connecting block at the lower part in the middle, the tail end of the servo cylinder is fixedly mounted with a first connecting head, the output shaft of the servo cylinder is fixedly mounted with a second connecting head, the first connecting head is movably connected with the second connecting block through a pin shaft, and the second connecting head is movably connected with the third connecting block through a pin shaft.

[0016] Specifically, a plurality of connecting shafts are fixedly mounted on one side of the inside of the base, supporting wheels are movably connected to one end of the connecting shafts, supporting belts are sleeved on the plurality of supporting wheels, and one end of the receiving plate is movably attached to the upper part of the supporting belts.

[0017] Compared with the prior art, the beneficial effects of the utility model are:

[0018] The utility model discloses a screening mechanism is used for realizing the broken screening of casting sand, and the compacted block in casting sand can be effectively reduced, and the casting sand is convenient for compaction in the sand box in the subsequent investment, and the core making is convenient, the compacted block of casting sand is smashed through the broken roller, and the broken casting sand is convenient for discharging from the blanking hole, realizes the screening of casting sand.

[0019] The conveying mechanism is used for conveying the casting sand, that is, the receiving plate is moved and adjusted by the second servo motor through the screw rod, that is, the discharged casting sand is received, the casting sand is conveniently conveyed to the upper portion of the sand box, then one end of the receiving plate is lifted by the servo cylinder, the casting sand is conveniently discharged, the casting sand can fall into the interior of the sand box, and the feeding and conveying of the casting sand are realized.

[0020] Other features and advantages of the utility model will become clear through the following detailed description of exemplary embodiments of the utility model with reference to the drawings. BRIEF DESCRIPTION OF DRAWINGS

[0021] Figure 1 It is the structural schematic diagram provided by the utility model;

[0022] Figure 2 It is the screening mechanism schematic diagram provided by the utility model;

[0023] Figure 3 It is the screening mechanism sectional view provided by the utility model;

[0024] Figure 4 It is the screening mechanism partial structure schematic diagram provided by the utility model;

[0025] Figure 5 It is the conveying mechanism schematic diagram provided by the utility model;

[0026] Figure 6 It is the conveying mechanism partial structure schematic diagram provided by the utility model.

[0027] In the figure: 1, screening mechanism; 101, screening cylinder; 102, first servo motor; 103, rotating shaft rod; 104, crushing roller; 105, blanking hole; 106, feeding pipe; 107, storage hopper; 108, feeding hole; 109, discharging box; 110, discharging pipe; 111, limiting strip; 112, baffle; 113, supporting leg; 114, first mounting plate; 2, conveying mechanism; 201, base; 202, lead screw; 203, second servo motor; 204, moving block; 205, first connecting block; 206, receiving plate; 207, U-shaped plate; 208, third mounting plate; 209, second connecting block; 210, servo cylinder; 211, first connecting head; 212, second connecting head; 213, third connecting block; 214, supporting belt; 215, supporting wheel; 216, connecting shaft; 217, second mounting plate. DETAILED DESCRIPTION

[0028] In order to further understand the utility model content, characteristics and effects of the utility model, the following examples are given, and the details are described as follows with the help of the drawings.

[0029] As Figures 1 to 6 shown, the casting sand feeding device provided by the embodiment of the utility model comprises a screening mechanism 1 and a conveying mechanism 2, the conveying mechanism 2 is arranged at the lower part of the screening mechanism 1.

[0030] The screening mechanism 1 comprises a screening cylinder 101, the inside of the screening cylinder 101 is provided with a rotating shaft rod 103, one end of the rotating shaft rod 103 is connected with a first servo motor 102, a plurality of crushing rollers 104 are fixedly installed on the rotating shaft rod 103, and a plurality of blanking holes 105 are formed in the bottom of the screening cylinder 101.

[0031] The conveying mechanism 2 comprises a base 201, the inside of one side of the base 201 is provided with a lead screw 202, one end of the lead screw 202 is connected with a second servo motor 203, two moving blocks 204 are threadedly connected to the lead screw 202, the upper ends of the two moving blocks 204 are movably connected with a receiving plate 206, the upper end of the receiving plate 206 is fixedly provided with a U-shaped plate 207, and a servo cylinder 210 is movably installed at the bottom of the receiving plate 206.

[0032] In the embodiment, preferably, a feeding hole 108 is formed in the upper end of the screening cylinder 101, the feeding hole 108 is connected with a feeding pipe 106, and the upper end of the feeding pipe 106 is fixedly connected with a storage hopper 107.

[0033] It should be noted that the storage hopper 107 is used for storing the casting sand, and the feeding hole 108 and the feeding pipe 106 are used for conveying the casting sand into the inside of the screening cylinder 101, so that the casting sand can be crushed and screened.

[0034] In the embodiment, preferably, the lower part of the screening cylinder 101 is communicated with a discharging box 109, the bottom of the discharging box 109 is fixedly communicated with a discharging pipe 110, and a plurality of discharging holes 105 are arranged in the interior of the discharging box 109.

[0035] It should be noted that the discharging holes 105 are arranged to facilitate the conveying of the crushed foundry sand into the interior of the discharging box 109, and then the foundry sand is output through the discharging pipe 110, so as to facilitate the conveying of the foundry sand to the receiving plate 206.

[0036] In the embodiment, preferably, one end of the screening cylinder 101 is welded with a first mounting plate 114, the first servo motor 102 is fixedly mounted on the first mounting plate 114, the other end of the screening cylinder 101 is fixedly mounted with a limiting strip 111, the limiting strip 111 is movably mounted with a baffle 112 in the interior, and the bottom of the screening cylinder 101 is welded with four supporting legs 113.

[0037] It should be noted that the first mounting plate 114 is arranged to facilitate the mounting of the first servo motor 102, so as to maintain the operation stability of the first servo motor 102, and the limiting strip 111 is arranged to facilitate the limiting and mounting of the baffle 112, so as to facilitate the taking out of the impurities remaining in the interior of the screening cylinder 101 by opening and closing the baffle 112, and the supporting legs 113 are arranged to facilitate the fixed mounting of the screening cylinder 101, so as to maintain the balance stability.

[0038] In the embodiment, preferably, one end of the base 201 is welded with a second mounting plate 217, and the second servo motor 203 is fixedly mounted on the second mounting plate 217.

[0039] It should be noted that the second mounting plate 217 is arranged to facilitate the fixed mounting of the second servo motor 203, so as to maintain the operation stability of the second servo motor 203.

[0040] In the embodiment, preferably, one end of the receiving plate 206 is fixedly provided with two first connecting blocks 205, the two first connecting blocks 205 are movably connected with two moving blocks 204 through a pin shaft, and the bottom of the two moving blocks 204 is commonly welded with a third mounting plate 208.

[0041] It should be noted that the first connecting block 205 is arranged to facilitate the connection with the moving block 204, and the pin shaft connection is arranged to facilitate the side turning of the receiving plate 206, so as to realize the discharging of the foundry sand.

[0042] In the embodiment, preferably, a second connecting block 209 is fixedly arranged in the middle of the upper surface of the third mounting plate 208, one end of the receiving plate 206 is fixedly arranged with a third connecting block 213 in the middle of the lower part, the tail end of the servo cylinder 210 is fixedly arranged with a first connecting head 211, the output shaft of the servo cylinder 210 is fixedly arranged with a second connecting head 212, the first connecting head 211 is movably connected with the second connecting block 209 through a pin shaft, and the second connecting head 212 is movably connected with the third connecting block 213 through a pin shaft.

[0043] It should be noted that the servo cylinder 210 is connected with the second connecting block 209 and the third connecting block 213 through the first connecting head 211 and the second connecting head 212, so as to maintain the safety of the movement of the servo cylinder 210 and prevent the servo cylinder 210 from being hindered during movement.

[0044] In the embodiment, preferably, a plurality of connecting shafts 216 are fixedly arranged on one side of the inside of the base 201, the one end of each connecting shaft 216 is movably connected with a supporting wheel 215, and a supporting belt 214 is sleeved on the plurality of supporting wheels 215, and one end of the receiving plate 206 is movably attached to the upper part of the supporting belt 214.

[0045] It should be noted that the connecting shaft 216 and the supporting wheel 215 are arranged to facilitate the installation of the supporting belt 214, and the supporting belt 214 is arranged to facilitate the support of the receiving plate 206.

[0046] The specific operation process of the application is as follows:

[0047] In use, the used foundry sand is poured into the inside of the storage hopper 107, and then the foundry sand falls into the inside of the screening cylinder 101 through the feeding pipe 106 and the feeding hole 108, the first servo motor 102 drives the rotating shaft 103 and the crushing roller 104 to crush the caked and caked foundry sand, then the crushed foundry sand falls from the discharging hole 105 and falls onto the receiving plate 206 through the discharging box 109 and the discharging pipe 110, after all the foundry sand falls onto the receiving plate 206, the second servo motor 203 is started, the second servo motor 203 drives the receiving plate 206 through the lead screw 202 and the supporting belt 214, and when the receiving plate 206 is transported above the sand box, the servo cylinder 210 is started, the servo cylinder 210 lifts one side of the receiving plate 206, so that the receiving plate 206 can transport the foundry sand into the inside of the sand box, and the foundry sand is loaded and transported.

[0048] Although the embodiments of the present application have been shown and described, it is to be understood that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present application, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A molding sand charging device characterized by comprising: Including screening mechanism (1) and transport mechanism (2), the transport mechanism (2) is arranged in the lower portion of the screening mechanism (1); The screening mechanism (1) includes a screening cylinder (101), the inside of the screening cylinder (101) is provided with a rotating shaft (103), one end of the rotating shaft (103) is connected with a first servo motor (102), a plurality of crushing rollers (104) are fixedly installed on the rotating shaft (103), and a plurality of material falling holes (105) are formed in the bottom of the screening cylinder (101); The transport mechanism (2) includes a base (201), one side of the base (201) is internally provided with a lead screw (202), one end of the lead screw (202) is connected with a second servo motor (203), two moving blocks (204) are threadedly connected on the lead screw (202), the upper ends of the two moving blocks (204) are movably connected with a material receiving plate (206), the upper end of the material receiving plate (206) is fixedly provided with a U-shaped plate (207), and a servo cylinder (210) is movably installed at the bottom of the material receiving plate (206).

2. A molding sand charging device according to claim 1, characterized in that: The upper end of the screening cylinder (101) is provided with a feeding hole (108), the feeding hole (108) is connected with a feeding pipe (106), and the upper end of the feeding pipe (106) is fixedly communicated with a storage hopper (107).

3. A molding sand charging device according to claim 1, characterized in that: The lower portion of the screening cylinder (101) is communicated with a discharging box (109), the bottom of the discharging box (109) is fixedly communicated with a discharging pipe (110), and a plurality of material falling holes (105) are arranged in the inside of the discharging box (109).

4. The molding sand charging device according to claim 1, characterized in that: One end of the screening cylinder (101) is welded with a first mounting plate (114), the first servo motor (102) is fixedly installed on the first mounting plate (114), the other end of the screening cylinder (101) is fixedly installed with a limiting strip (111), the inside of the limiting strip (111) is movably installed with a baffle (112), and the bottom of the screening cylinder (101) is welded with four supporting legs (113).

5. The molding sand charging device according to claim 1, characterized in that: One end of the base (201) is welded with a second mounting plate (217), and the second servo motor (203) is fixedly installed on the second mounting plate (217).

6. A molding sand charging device according to claim 1, characterized in that: One end of the material receiving plate (206) is fixedly provided with two first connecting blocks (205), the two first connecting blocks (205) are movably connected with the two moving blocks (204) through a pin shaft, and the bottoms of the two moving blocks (204) are commonly welded with a third mounting plate (208).

7. A molding sand charging device according to claim 6, characterized in that: The upper surface of the third mounting plate (208) is fixedly provided with a second connecting block (209) in the middle, one end of the material receiving plate (206) is fixedly provided with a third connecting block (213) in the lower middle, the tail end of the servo cylinder (210) is fixedly provided with a first connecting head (211), the output shaft of the servo cylinder (210) is fixedly provided with a second connecting head (212), the first connecting head (211) is movably connected with the second connecting block (209) through a pin shaft, and the second connecting head (212) is movably connected with the third connecting block (213) through a pin shaft.

8. A molding sand charging device according to claim 1, characterized in that: A plurality of connecting shafts (216) are fixedly installed on one side of the inside of the base (201), one end of each connecting shaft (216) is movably connected with a supporting wheel (215), a supporting belt (214) is sleeved on the plurality of supporting wheels (215), and one end of the material receiving plate (206) is movably attached to the upper portion of the supporting belt (214).

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