A feeding mechanism for molding sand production

Abstract

This utility model discloses a feeding mechanism for molding sand production, relating to the technical field of feeding mechanisms. A feeding assembly is fixedly installed on the upper surface of the top of four support plates. A feeding pipe is fixedly installed on the lower surface of the feeding assembly, and a feed hopper is fixedly installed on the upper surface of the feeding assembly. A guide pipe is fixedly installed on the right side of the feed hopper, and an elevator is fixedly installed at the right end of the guide pipe. This utility model uses a motor to drive a rotating shaft and an auger to rotate, lifting the sand inside the machine body into the guide pipe. Simultaneously, the rotating shaft drives the auger to rotate, breaking up any clumps of sand. A feeder facilitates replenishment by the elevator. A motor drives a rotating shaft and an auger to rotate, conveying the sand from the right side of the machine body into the machine body. Simultaneously, the cutting blade on the rotating shaft rotates to cut large pieces of sand, preventing blockages during sand feeding, reducing cleaning workload, and improving work efficiency.

Description

Technical Field

[0001] This utility model relates to the technical field of feeding mechanisms, specifically to a feeding mechanism for molding sand production. Background Technology

[0002] Molding sand is a mixture of raw sand, binder, additives, and water, used to manufacture casting molds. Both dried sand and calcined sand are types of molding sand, but they undergo different processing methods during manufacturing. The production process for calcined sand is: feeding, heating, cooling (storage / screening, inspection), and packaging. The production process for dried sand is: feeding, heating, impurity removal, storage / blending, and packaging. Therefore, a feeding mechanism is needed in the production of molding sand to deliver the raw sand to subsequent production equipment for processing.

[0003] Chinese patent document CN115519068B discloses a casting sand feeding device and its feeding method, which includes a screening section, a feeding section, and a mixing section. The feeding section adds a mixture of casting sand and molding sand binder to the screening section. After being screened by the screening section, the mixture consists of a first portion and a second portion. The second portion slides down the screening section to the outside of the screening section. The first portion falls from the middle of the screening section into the mixing section, where it is mixed evenly and then discharged and added to the mold. This device achieves relatively convenient operation, relatively high feeding efficiency, and relatively good screening effect, thus overcoming the technical problems of relatively complex operation, low feeding efficiency, and poor screening effect.

[0004] The existing technology has the following problems:

[0005] Sand may clump together during long-term storage. If the clumps are not broken up before feeding, blockages may occur, which not only reduces work efficiency but also increases the cleaning burden. Furthermore, it makes it impossible to control the feeding status of the feeding mechanism. Utility Model Content

[0006] This utility model provides a feeding mechanism for molding sand production to solve the problems mentioned in the background art.

[0007] To solve the above-mentioned technical problems, the technical solution adopted by this utility model is as follows:

[0008] A feeding mechanism for molding sand production includes four L-shaped support plates. A feeding assembly is fixedly installed on the upper surface of the top of the four support plates. A feeding pipe is fixedly installed on the lower surface of the feeding assembly. A feed hopper is fixedly installed on the upper surface of the feeding assembly. A guide pipe is fixedly installed on the right side of the feed hopper. An elevator is fixedly installed at the right end of the guide pipe. A feed replenisher is fixedly installed on the lower right side of the elevator. The feed hopper is connected to the guide pipe. A screen with a conical cross-section is fixedly installed at the bottom of the inner cavity of the top of the feed hopper. A cover plate is threadedly connected to the upper part of the inner cavity of the top of the feed hopper.

[0009] The elevator includes a body 1, the upper left side of which is fixedly installed to the right end of the guide pipe and the body 1 is connected to the guide pipe. A motor 1 is fixedly installed on the upper surface of the body 1. A rotating shaft 1 extending into the inner cavity of the body 1 is fixedly installed at the output end of the motor 1, and the lower end of the rotating shaft 1 is rotatably connected to the lower surface of the inner cavity of the body 1. A dispersing rod is fixedly installed on the outer side of the rotating shaft 1. The feeder includes an L-shaped body 2, the left side of which is fixedly installed to the lower right side of the body 1 and the body 2 is connected to the body 1.

[0010] The feeding assembly includes a feeding disc, with the four corners of the lower surface of the feeding disc fixedly installed to the upper surfaces of the tops of four support plates. The inner cavity of the feeding disc is slidably connected to a baffle, and both the inner cavity of the feeding disc and the baffle are straight groove structures. A feeding trough is provided through the left side of the upper surface of the baffle, and the feeding trough is connected to the feed hopper and the feeding pipe. A motor is fixedly installed on the left front side of the feeding disc, and a screw is fixedly installed at the output end of the motor. A screw block is threadedly connected to the outer side of the screw, and the rear side of the screw block is fixedly installed at the middle position of the front side of the baffle.

[0011] Preferably, a screw conveyor is fixedly installed on both the left and right sides of the outer side of the rotating shaft, and the screw conveyor is inclined upward.

[0012] Preferably, a motor is fixedly installed on the right side of the second body, and a rotating shaft extending into the inner cavity of the second body is fixedly installed at the output end of the motor. An auger is fixedly installed on the outer side of the rotating shaft. A bracket is fixedly installed on the left side of the front and rear sides of the bottom inner cavity of the second body, and the inner cavity of the bracket is rotatably connected to the left side of the rotating shaft.

[0013] Preferably, a cutting blade is fixedly installed at both the upper and lower positions on the outer side of the second rotating shaft.

[0014] Preferably, a strip groove is provided on the front side of the inner cavity of the feeding disc, and the outer side of the screw block is slidably connected to the inner cavity of the strip groove.

[0015] Preferably, the right end of the screw is rotatably connected to the right end of the slot.

[0016] Preferably, limit blocks are fixedly installed on the right side of the front and rear sides of the lower surface of the baffle, and limit grooves are formed on the right side of the front and rear sides of the lower surface of the inner cavity of the feed plate. The inner cavity of the limit groove is slidably connected to the outer side of the limit block, and both the limit groove and the limit block are isosceles trapezoidal structures.

[0017] Due to the adoption of the above technical solution, the technological progress achieved by this utility model compared to the prior art is as follows:

[0018] 1. This utility model provides a feeding mechanism for molding sand production. A motor drives a rotating shaft and an auger to rotate, lifting the sand inside the machine body to the guide pipe. At the same time, the rotating shaft drives the auger to rotate and break up any clumps of sand. The feeding machine facilitates replenishment by the elevator. A motor drives a rotating shaft and an auger to rotate, conveying the sand on the right side of the machine body to the machine body. At the same time, the cutting blade of the rotating shaft rotates to cut large pieces of sand. This prevents blockage during sand feeding, reduces cleaning burden, and improves work efficiency.

[0019] 2. This utility model provides a feeding mechanism for molding sand production. The screw is driven by a motor to rotate, which in turn pushes the screw block to move left and right. This can control the size of the connection between the feeding trough, the feed hopper, and the feeding pipe, thereby controlling the size of the feeding trough opening. This not only controls the feeding status of the feeding mechanism but also controls the feeding speed of the sand. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the structure of this utility model;

[0021] Figure 2 This is a cross-sectional structural diagram of the present invention;

[0022] Figure 3 This is a schematic diagram of the elevator part of this utility model;

[0023] Figure 4 This is a schematic diagram of the feeding machine structure of this utility model;

[0024] Figure 5 This is a schematic diagram of the feeding assembly in the feeding state of this utility model;

[0025] Figure 6 This is a schematic diagram of the feeding assembly of this utility model in the non-feeding state.

[0026] Figure 7 This is an enlarged structural diagram of point A in this utility model;

[0027] Figure 8 This is a schematic diagram of the baffle structure of this utility model;

[0028] Figure 9This is a cross-sectional view of the feed tray of this utility model.

[0029] In the diagram: 1. Support plate; 2. Feeding assembly; 21. Feeding disc; 22. Motor 3; 23. Baffle; 24. Feeding trough; 25. Screw block; 26. Screw; 27. Strip groove; 28. Limiting groove; 29. ​​Limiting block; 3. Feed hopper; 4. Elevator; 41. Machine body 1; 42. Motor 1; 43. Rotating shaft 1; 44. Screw 1; 45. Dispersing rod; 5. Feeder; 51. Machine body 2; 52. Motor 2; 53. Rotating shaft 2; 54. Screw 2; 55. Cutting blade; 56. Support; 6. Feeding pipe; 7. Guide pipe; 8. Cover plate; 9. Screen. Detailed Implementation

[0030] To make the technical means, creative features, objectives and effects of this utility model easier to understand, the present utility model will be further described below in conjunction with specific embodiments.

[0031] like Figures 1-9 As shown, a feeding mechanism for molding sand production includes four L-shaped support plates 1. A feeding assembly 2 is fixedly installed on the upper surface of the four support plates 1. A feeding pipe 6 is fixedly installed on the lower surface of the feeding assembly 2. A feed hopper 3 is fixedly installed on the upper surface of the feeding assembly 2. A guide pipe 7 is fixedly installed on the right side of the feed hopper 3. An elevator 4 is fixedly installed at the right end of the guide pipe 7. A feed replenisher 5 is fixedly installed on the lower right side of the elevator 4. The feed hopper 3 is connected to the guide pipe 7. A screen 9 with a conical cross-section is fixedly installed at the bottom of the inner cavity of the top of the feed hopper 3. A cover plate 8 is threadedly connected to the upper part of the inner cavity of the top of the feed hopper 3 to prevent dust in the sand from escaping into the air. The elevator 4 includes a body 41. The upper left side of the body 41 is fixedly installed to the right end of the guide pipe 7, and the body 41 is connected to the guide pipe 7. A motor 42 is fixedly installed on the upper surface of the body 41. An extension extending into the inner cavity of the body 41 is fixedly installed at the output end of the motor 42. The rotating shaft 43 is rotatably connected to the lower surface of the inner cavity of the machine body 41. A dispersing rod 45 is fixedly installed on the outer side of the rotating shaft 43. The feeding machine 5 includes an L-shaped machine body 51. The left side of the machine body 51 is fixedly installed to the lower right side of the machine body 41, and the machine body 51 is connected to the machine body 41. The feeding assembly 2 includes a feeding disc 21. The four corners of the lower surface of the feeding disc 21 are fixedly installed to the upper surface of the top of the four support plates 1 respectively. The inner cavity of the feed plate 21 is slidably connected to a baffle 23, and both the inner cavity of the feed plate 21 and the baffle 23 are straight groove structures. A feed trough 24 is provided through the left side of the upper surface of the baffle 23, and the feed trough 24 is connected to the feed hopper 3 and the feeding pipe 6. A motor 3 22 is fixedly installed on the left front side of the feed plate 21. A screw 26 is fixedly installed at the output end of the motor 3 22. A screw block 25 is threadedly connected to the outer side of the screw 26, and the rear side of the screw block 25 is fixedly installed at the middle position of the front side of the baffle 23.

[0032] When feeding sand, motor 22 drives screw 26 to rotate, causing screw 26 to push screw block 25 to the right, opening the feed trough 24 to feed hopper 3 and feed pipe 6. The size of the opening of feed trough 24 is controlled by the left and right movement of baffle 23. This not only controls the feeding status of the feeding mechanism but also the feeding speed of sand. Motor 42 drives shaft 43 and auger 44 to rotate, lifting the sand inside machine body 41 to guide pipe 7. The sand falls into feed hopper 3 through guide pipe 7 and passes through screen 9 to remove stones and other impurities. The sand after impurity removal passes through the bottom of feed hopper 3, feed plate 21, feed trough 24, feed plate 21, and feed pipe 6 to enter the subsequent molding sand processing equipment for further processing. Feeder 5 facilitates feeding by elevator 4. When it is necessary to treat impurities on screen 9, rotating cover plate 8 opens feed hopper 3 to treat impurities.

[0033] like Figure 2 , Figure 3 As shown, screw conveyors 44 are fixedly installed on both the left and right sides of the outer side of the rotating shaft 43, and the screw conveyors 44 are tilted upward.

[0034] As the shaft 43 rotates, it drives the auger 44 to rotate, breaking up the clumps of sand and preventing the sand from clogging the feed pipe 7, thus reducing the cleaning burden and improving work efficiency.

[0035] like Figure 2 , Figure 4 As shown, a motor 2 52 is fixedly installed on the right side of the second body 2 51. A rotating shaft 2 53 extending into the inner cavity of the second body 2 51 is fixedly installed at the output end of the motor 2 52. An auger 2 54 is fixedly installed on the outer side of the rotating shaft 2 53. A bracket 56 is fixedly installed on the left side of the front and rear sides of the bottom inner cavity of the second body 2 51. The inner cavity of the bracket 56 is rotatably connected to the left side of the rotating shaft 2 53.

[0036] The second motor 52 drives the second shaft 53 and the second auger 54 to rotate, transporting the sand on the right side of the second body 51 to the first body 41, which facilitates the replenishment of sand. The bracket 56 is set to ensure that the second shaft 53 can carry out stable transmission.

[0037] like Figure 2 , Figure 4 As shown, cutting blades 55 are fixedly installed at both the upper and lower positions on the outer side of the second rotating shaft 53.

[0038] While the rotating shaft 53 rotates, it drives the cutting blade 55 to rotate and cut large pieces of sand, thus preventing the feeding mechanism from getting clogged when feeding sand.

[0039] like Figures 5-9As shown, a strip groove 27 is provided on the front side of the inner cavity of the feed plate 21, and the outer side of the screw block 25 is slidably connected to the inner cavity of the strip groove 27.

[0040] The sliding action between the slot 27 and the screw block 25 allows the screw block 25 to move only left and right, preventing the screw block 25 from rotating with the screw 26.

[0041] like Figure 5 , Figure 6 As shown, the right end of the screw 26 is rotatably connected to the right end of the slot 27 to ensure that the screw 26 can perform stable transmission.

[0042] like Figures 1-9 As shown, limit blocks 29 are fixedly installed on the right side of the front and rear sides of the lower surface of the baffle 23. Limit grooves 28 are opened on the right side of the front and rear sides of the lower surface of the inner cavity of the feed plate 21. The inner cavity of the limit groove 28 is slidably connected to the outer side of the limit block 29, and both the limit groove 28 and the limit block 29 are isosceles trapezoidal structures.

[0043] Through the action of the limiting groove 28 and the limiting block 29, the baffle 23 can be moved and limited, thereby controlling the size of the connection between the feeding trough 24 and the feed hopper 3 and the feeding pipe 6, and thus controlling the size of the opening of the feeding trough 24. This not only controls the feeding state of the feeding mechanism, but also controls the feeding speed of the sand.

[0044] The working principle of this utility model is as follows: When feeding sand, motor 22 drives screw 26 to rotate, causing screw 26 to push screw block 25 to the right, thus opening the feed trough 24 to the feed hopper 3 and feed pipe 6. The size of the opening of feed trough 24 is controlled by the left and right movement of baffle 23. This not only controls the feeding state of the feeding mechanism but also the feeding speed of the sand. Motor 42 drives shaft 43 and auger 44 to rotate, lifting the sand inside machine body 41 into guide pipe 7. At the same time, shaft 43 drives auger 44 to rotate, breaking up any clumps of sand and preventing the sand from clogging the guide pipe 7. The sand then falls into feed hopper 3 through guide pipe 7. Inside, impurities such as stones are removed from the sand through the screen 9. The sand after impurity removal passes through the bottom of the feed hopper 3, the feed plate 21, the feed trough 24, the feed plate 21, and the feeding pipe 6 into the subsequent molding sand processing equipment for further processing. When replenishing the molding sand, the motor 2 52 drives the rotating shaft 2 53 and the auger 2 54 to rotate and transport the sand on the right side of the machine body 2 51 into the machine body 1 41. At the same time, the cutting blade 55 of the rotating shaft 2 53 rotates to cut large pieces of sand, avoiding blockage of the feeding mechanism when feeding sand, reducing the cleaning burden, and improving work efficiency. When it is necessary to deal with the impurities on the screen 9, the cover plate 8 is rotated to open the feed hopper 3 to deal with the impurities.

[0045] The present invention has been described in detail above. However, modifications or improvements can be made to it, which will be obvious to those skilled in the art. Therefore, any modifications or improvements that do not depart from the spirit of the present invention are within the protection scope of the present invention.

Claims

1. A feeding mechanism for sand production, comprising four L-shaped support plates (1), characterized in that: A feeding assembly (2) is fixedly installed on the upper surface of the top of the four support plates (1). A feeding pipe (6) is fixedly installed on the lower surface of the feeding assembly (2). A feed hopper (3) is fixedly installed on the upper surface of the feeding assembly (2). A guide pipe (7) is fixedly installed on the right side of the feed hopper (3). An elevator (4) is fixedly installed at the right end of the guide pipe (7). A feed replenisher (5) is fixedly installed on the lower right side of the elevator (4). The feed hopper (3) is connected to the guide pipe (7). A screen (9) with a cone-shaped cross section is fixedly installed at the bottom of the top inner cavity of the feed hopper (3). A cover plate (8) is threadedly connected to the upper part of the top inner cavity of the feed hopper (3). The elevator (4) includes a body (41), the upper left side of the body (41) is fixedly installed with the right end of the guide pipe (7), and the body (41) is connected to the guide pipe (7). A motor (42) is fixedly installed on the upper surface of the body (41). A rotating shaft (43) extending into the inner cavity of the body (41) is fixedly installed at the output end of the motor (42). The lower end of the rotating shaft (43) is rotatably connected to the lower surface of the inner cavity of the body (41). A dispersing rod (45) is fixedly installed on the outer side of the rotating shaft (43). The feeder (5) includes an L-shaped body (51), the left side of the body (51) is fixedly installed with the lower right side of the body (41), and the body (51) is connected to the body (41). The feeding assembly (2) includes a feeding disc (21). The four corners of the lower surface of the feeding disc (21) are fixedly installed to the upper surface of the top of the four support plates (1). The inner cavity of the feeding disc (21) is slidably connected to a baffle (23). Both the inner cavity of the feeding disc (21) and the baffle (23) are straight groove structures. A feeding groove (24) is opened through the left side of the upper surface of the baffle (23). The feeding groove (24) is connected to the feed hopper (3) and the feeding pipe (6). A motor (22) is fixedly installed on the left front side of the feeding disc (21). A screw (26) is fixedly installed at the output end of the motor (22). A screw block (25) is threadedly connected to the outer side of the screw (26). The rear side of the screw block (25) is fixedly installed at the middle position of the front side of the baffle (23).

2. A feed mechanism for sand production according to claim 1, characterized in that: Screwdrivers (44) are fixedly installed on both the left and right sides of the outer side of the rotating shaft (43), and the screwdrivers (44) are inclined upward.

3. The feeding mechanism for molding sand production according to claim 1, characterized in that: A motor (52) is fixedly installed on the right side of the second body (51). A rotating shaft (53) extending into the inner cavity of the second body (51) is fixedly installed at the output end of the motor (52). An auger (54) is fixedly installed on the outer side of the rotating shaft (53). A bracket (56) is fixedly installed on the left side of the front and rear sides of the bottom inner cavity of the second body (51). The inner cavity of the bracket (56) is rotatably connected to the left side of the rotating shaft (53).

4. The feeding mechanism for molding sand production according to claim 3, characterized in that: Cutting blades (55) are fixedly installed at both the upper and lower positions on the outer side of the second rotating shaft (53).

5. The feeding mechanism for molding sand production according to claim 1, characterized in that: The feed pan (21) has a strip groove (27) on the front side of its inner cavity, and the outer side of the screw block (25) is slidably connected to the inner cavity of the strip groove (27).

6. The feeding mechanism for molding sand production according to claim 1, characterized in that: The right end of the screw (26) is rotatably connected to the right end of the groove (27).

7. The feeding mechanism for molding sand production according to claim 1, characterized in that: Limiting blocks (29) are fixedly installed on the right side of the front and rear sides of the lower surface of the baffle (23). Limiting grooves (28) are opened on the right side of the front and rear sides of the lower surface of the inner cavity of the feed plate (21). The inner cavity of the limiting groove (28) is slidably connected to the outer side of the limiting block (29), and both the limiting groove (28) and the limiting block (29) are isosceles trapezoidal structures.

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