Sand unloading assembly at bottom of casting sand box

Abstract

The utility model discloses a casting sand box bottom sand unloading assembly, and particularly relates to the technical field of sand unloading assemblies, which comprises a collecting box fixedly mounted at the bottom of a mounting frame, a moving plate slidably mounted at the top of the mounting frame, a support frame fixedly mounted on one side of the top of the mounting frame, and a support frame arranged at the bottom of a top plate of the support frame and capable of moving up and down in the vertical direction. A brush is fixedly mounted on the peripheral wall of the supporting frame, an extrusion net plate is fixedly mounted at the bottom of the supporting frame, a cutting net plate is fixedly mounted on the inner side of the mounting frame and corresponds to the lower portion of the extrusion net plate, and a clamping assembly capable of reciprocating up and down is arranged on the supporting frame; after a forging sand box is firmly fixed by a clamping assembly, a moving plate is moved away from the bottom of the forging sand box, so that a sand mold in the forging sand box falls onto a cutting net plate, then after the sand mold is thoroughly scattered through an extrusion net plate, the clamping assembly drives the sand box to do up-down reciprocating motion, and a brush reciprocates to scrape and brush the inner wall of the sand box; molding sand attached to the inner wall of the sand box is scraped cleanly, so that the production efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of sand unloading components, in particular to a sand unloading component at the bottom of a casting sand box. Background Art

[0002] Patent Publication No. CN112276051 B discloses a bottom sand unloading assembly for a lost foam casting sand box, comprising a casting mold, an outer wall of the casting mold being rotatably connected to a sand scraping assembly, the sand scraping assembly comprising a slider, the bottom end of the slider being fixedly connected to an anti-collision assembly, the anti-collision assembly comprising a connecting rod, the slider being fixedly connected to the connecting rod, the connecting rod being fixedly connected to an inner anti-collision mechanism, the inner anti-collision mechanism rotating the outer anti-collision structure, the outer anti-collision structure being connected on both sides by pins, the side walls of the outer anti-collision structure being fixedly connected to a spiral brush head, the spiral brush head being contacted and connected to the side wall of the casting mold, the inner anti-collision mechanism comprising an inner anti-collision shell, the connecting rod being fixedly connected to the anti-collision shell, the side wall of the inner anti-collision shell passing through a slide groove, the outer end face of the inner anti-collision shell passing through a circular groove, the inner wall of the circular groove being fixedly connected to a spring, the spring being fixedly connected to the outer anti-collision structure, the outer anti-collision structure comprising a left anti-collision shell flap, the inner walls of the left anti-collision shell flap and the right anti-collision shell flap being hinged, the opening being fixed concentrically to the outer side of the inner anti-collision shell by pins, the inner walls of the left anti-collision shell flap and the right anti-collision shell flap passing circumferentially through a rotating groove, and the rotating roller being slidably connected inside the rotating groove.

[0003] However, in the actual production process, the molding sand attached to the inner wall of the sand box may not be completely removed after unloading the sand. The attached molding sand will increase the difficulty of cleaning the sand box, extend the production cycle, reduce production efficiency, and affect the economic benefits of the enterprise. Utility Model Content

[0004] The utility model aims to provide a sand unloading component at the bottom of a casting sand box.

[0005] The technical problem solved by the utility model is that the molding sand that is not completely removed from the inner wall of the sand box will increase the difficulty of cleaning the sand box and reduce the production efficiency.

[0006] The utility model can be realized through the following technical scheme: it includes a collecting box fixedly installed at the bottom of the mounting frame, a movable plate is slidably installed on the top of the mounting frame, a support frame is fixedly installed on one side of the top of the mounting frame, the bottom of the top plate of the support frame is provided with a support frame that can move up and down in the vertical direction, a brush is fixedly installed on the outer peripheral wall of the support frame, an extrusion mesh plate is fixedly installed at the bottom of the support frame, a cutting mesh plate is fixedly installed on the inner side of the mounting frame corresponding to the bottom of the extrusion mesh plate, and a clamping assembly that can reciprocate up and down is provided on the support frame, and the clamping assembly is used to clamp the forging sand box.

[0007] A further technical improvement of the present invention is that the clamping assembly includes limit rods that are slidably installed on both sides of the support frame, clamping plates are fixedly installed on opposite sides of the two limit rods, a lifting frame is slidably installed on the side of the mounting frame adjacent to the cutting mesh plate, a rotating rod is rotatably installed on the top side of the lifting frame, and two threaded sections with opposite rotation directions and symmetrical to each other are fixedly installed on the outer peripheral wall of the rotating rod, the two clamping plates are respectively threadedly connected to the rotating rod through the two threaded sections, and a baffle is fixedly installed on the outer peripheral wall of the rotating rod at one end opposite to the two threaded sections.

[0008] Furthermore, rubber pads are fixedly mounted on opposite sides of the two clamping plates.

[0009] Furthermore, a turning handle is fixedly mounted on one end of the turning rod.

[0010] Furthermore, the structure that causes the clamping assembly to reciprocate up and down includes a rotating plate rotatably installed on one side of the mounting frame adjacent to the lifting frame, a push-pull plate rotatably installed on the end of the rotating plate away from the rotating shaft, and the end of the push-pull plate away from the rotating plate is rotatably connected to one side of the lifting frame.

[0011] Compared with the prior art, the present invention has the following beneficial effects:

[0012] 1. In this application, after the clamping assembly securely fixes the forging sand box, the movable plate is removed from the bottom of the forging sand box, so that the sand mold in the forging sand box falls onto the cutting mesh plate, and then the sand mold is completely broken up by squeezing the mesh plate. The clamping assembly drives the sand box to move up and down, and then the brush is used to scrape the inner wall of the sand box back and forth to scrape off the molding sand attached to the inner wall of the sand box, so as to improve production efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] In order to facilitate understanding by those skilled in the art, the present invention will be further described below with reference to the accompanying drawings.

[0014] Figure 1 This is a front view of the overall structure of the utility model;

[0015] Figure 2 This is the overall connection rear view of the utility model;

[0016] Figure 3 This is a schematic diagram of the structural connection of the clamping assembly of the present invention.

[0017] In the figure: 1. Mounting frame; 2. Collection box; 3. Moving plate; 4. Support frame; 6. Support frame; 7. Brush; 8. Extrusion screen; 9. Cutting screen; 10. Clamping assembly; 101. Limit rod; 102. Clamping plate; 103. Rubber pad; 104. Lifting frame; 105. Turning rod; 106. Turning handle; 107. Threaded section; 108. Baffle; 11. Turning plate; 12. Push-pull plate. DETAILED DESCRIPTION

[0018] In order to further illustrate the technical means and effects adopted by the present invention to achieve the predetermined purpose of the utility model, the specific implementation method, structure, characteristics and effects of the present invention are described in detail below in conjunction with the accompanying drawings and preferred embodiments.

[0019] See also Figure 1-3 As shown, this embodiment provides a sand unloading assembly at the bottom of a casting sand box, including a mounting frame 1, a collecting box 2 is fixedly installed at the bottom of the mounting frame 1, a movable plate 3 is slidably installed on the top of the mounting frame 1, an electric telescopic rod 1 is fixedly installed on one side of the mounting frame 1, and the output end of the electric telescopic rod 1 is fixedly connected to the movable plate 3, a support frame 4 is fixedly installed on one side of the top of the mounting frame 1, an electric telescopic rod 2 is fixedly installed on the top of the support frame 4, and a support frame 6 is fixedly installed on the output end of the electric telescopic rod 2, a brush 7 is fixedly installed on the outer peripheral wall of the support frame 6, an extrusion mesh plate 8 is fixedly installed on the bottom of the support frame 6, a cutting mesh plate 9 is fixedly installed on the inner side of the mounting frame 1 corresponding to the lower side of the extrusion mesh plate 8, and a clamping assembly 10 for clamping the forging sand box is provided at the position corresponding to the extrusion mesh plate 8 on the support frame 4;

[0020] The forging sand box is placed on the movable plate 3 for sand forging. When the forging is cooled, the movable plate 3 is moved to the bottom of the extrusion screen 8, and then the forging sand box is fixed and clamped by the clamping assembly 10. When the forging sand box is firmly fixed, the movable plate 3 is removed from the bottom of the forging sand box, so that the bottom of the forging sand box is in a hollow state. At this time, the sand mold in the forging sand box will move downward due to gravity and eventually fall to the top of the cutting screen 9. The sand mold forms a certain impact stress on the cutting screen 9 due to the effect of inertia, and the cutting The cutting mesh plate 9 reacts on the sand mold, thereby breaking up the sand mold to a certain extent. At this time, the support frame 6 is driven downward by the second electric telescopic rod, so that the support frame 6 drives the brush 7 to scrape the inner wall of the forging sand box, thereby scraping off the molding sand attached to the inner wall of the forging sand box to a certain extent, and also drives the extrusion mesh plate 8 to squeeze the sand mold that has not been completely dispersed, so as to completely break up the sand mold. Finally, the broken molding sand will fall into the collection box 2 through the holes of the cutting mesh plate 9, and the forgings in the sand mold will be exposed on the top of the cutting mesh plate 9;

[0021] The clamping assembly 10 includes a limit rod 101 that is slidably installed on both sides of the support frame 4, and a clamping plate 102 is fixedly installed on the opposite side of the two limit rods 101. A rubber pad 103 is fixedly installed on the opposite side of the two clamping plates 102. The setting of the rubber pad 103 is used to increase the friction force of the clamping plate 102 on the forging sand box when clamping it, so as to prevent the forging sand box from slipping off between the two clamping plates 102. A lifting frame 104 is slidably installed on the side of the mounting frame 1 adjacent to the cutting mesh plate 9, and a rotating rod 105 is rotatably installed on one side of the top of the lifting frame 104, and a rotating handle 106 is fixedly installed on one end of the rotating rod 105. , the outer peripheral wall of the rotating rod 105 is fixedly installed with two threaded sections 107 with opposite rotation directions and symmetrical to each other, and the two clamping plates 102 are respectively threadedly connected to the rotating rod 105 through the two threaded sections 107. The outer peripheral wall of the rotating rod 105 is located at the opposite end of the two threaded sections 107 and is fixedly installed with a baffle 108. The baffle 108 is set to prevent the clamping plate 102 from escaping from the range of the threaded section 107. When the rotating rod 105 is rotated clockwise by turning the handle 106, the two clamping plates 102 will limit the hand limit rod 101 and move closer to each other along the two threaded sections 107 with opposite rotation directions, and move away from each other otherwise;

[0022] A rotating plate 11 is rotatably installed on one side of the mounting frame 1 adjacent to the lifting frame 104. A driving motor (not shown in the figure) is installed on the mounting frame 1 to drive the rotating plate 11 to rotate. A push-pull plate 12 is rotatably installed on the end of the rotating plate 11 away from the rotating shaft. The end of the push-pull plate 12 away from the rotating plate 11 is rotatably connected to one side of the lifting frame 104. When the rotating plate 11 rotates, the lifting frame 104 is driven to reciprocate up and down in the vertical direction through the push-pull plate 12, thereby causing the lifting frame 104 to drive the forging sand box clamped between the two clamping plates 102 to reciprocate up and down.

[0023] When the present invention is in use, the forging sand box is placed on the movable plate 3 for sand forging. When the sand forging is completed, the forging sand box is moved between the two clamping plates 102 by the movable plate 3, and then the distance between the two clamping plates 102 is reduced until the two clamping plates 102 clamp the forging sand box firmly. Then, the movable plate 3 is moved away from the bottom of the forging sand box, so that the molding sand in the forging sand box falls from the forging sand box to the top of the cutting mesh plate 9. Under the action of inertia, the molding sand is broken up to a certain extent by the cutting mesh plate 9. At this time, the support frame 6 is moved downward again, so that the support frame 6 drives the brush 7 to scrape the inner wall of the forging sand box, and the squeezing mesh plate 8 squeezes the top of the sand mold, thereby scraping off the molding sand on the inner wall of the forging sand box to a certain extent, and thoroughly breaking up the sand mold. After the mold is broken up, its molding sand falls into the collection box 2 through the mesh holes on the cutting mesh 9, and the forgings in the sand mold will be exposed on the top of the cutting mesh 9. Then the lifting frame 104 drives the forging sand box to move up and down through the two clamping plates 102, so that the brush 7 on the outer wall of the support frame 6 and the forging sand box are in a relative motion state, so that the brush 7 scrapes the molding sand on the inner wall of the forging sand box up and down until the molding sand on the inner wall of the forging sand box is scraped off. Then the lifting frame 104 stops moving, and the movable plate 3 is moved to the bottom of the forging sand box again, and the distance between the two clamping plates 102 is expanded, so that the forging sand box falls to the top of the movable plate 3, and the forging sand box is moved away from under the extrusion mesh 8 by the movable plate 3, and then the forgings exposed on the top of the cutting mesh 9 can be taken out.

[0024] The above description is merely a preferred embodiment of the present invention and does not constitute any form of limitation to the present invention. Although the present invention has been disclosed as a preferred embodiment as above, it is not intended to limit the present invention. Any person skilled in the art can make some changes or modifications to equivalent embodiments using the technical contents disclosed above without departing from the scope of the technical solution of the present invention. However, any simple modifications, equivalent changes and modifications made to the above embodiments based on the technical essence of the present invention without departing from the content of the technical solution of the present invention are still within the scope of the technical solution of the present invention.

Claims

1. A sand unloading assembly for a casting sand box, comprising a collecting box (2) fixedly mounted at the bottom of a mounting frame (1), characterized in that: A movable plate (3) is slidably mounted on the top of the mounting frame (1), a support frame (4) is fixedly mounted on one side of the top of the mounting frame (1), a support frame (6) capable of moving up and down in a vertical direction is provided at the bottom of the top plate of the support frame (4), a brush (7) is fixedly mounted on the outer peripheral wall of the support frame (6), an extrusion mesh plate (8) is fixedly mounted on the bottom of the support frame (6), a cutting mesh plate (9) is fixedly mounted on the inner side of the mounting frame (1) below the extrusion mesh plate (8), and a clamping assembly (10) capable of reciprocating up and down is provided on the support frame (4), and the clamping assembly (10) is used to clamp the forging sand box.

2. The sand unloading assembly at the bottom of the casting sand box according to claim 1, characterized in that: The clamping assembly (10) includes a limiting rod (101) that is slidably installed on both sides of the support frame (4), and a clamping plate (102) is fixedly installed on the opposite side of the two limiting rods (101). A lifting frame (104) is slidably installed on the side of the mounting frame (1) adjacent to the cutting mesh plate (9), and a rotating rod (105) is rotatably installed on the top side of the lifting frame (104). Two threaded sections (107) with opposite rotation directions and symmetrical to each other are fixedly installed on the outer peripheral wall of the rotating rod (105). The two clamping plates (102) are respectively threadedly connected to the rotating rod (105) through the two threaded sections (107), and a baffle (108) is fixedly installed on the outer peripheral wall of the rotating rod (105) at the opposite end of the two threaded sections (107).

3. The sand unloading assembly at the bottom of the casting sand box according to claim 2, characterized in that: Rubber pads (103) are fixedly mounted on opposite sides of the two clamping plates (102).

4. The sand unloading assembly at the bottom of the casting sand box according to claim 2, characterized in that: A turning handle (106) is fixedly mounted on one end of the turning rod (105).

5. The sand unloading assembly at the bottom of the casting sand box according to claim 2, characterized in that: The structure for causing the clamping assembly (10) to reciprocate up and down includes a rotating plate (11) rotatably mounted on one side of the mounting frame (1) adjacent to the lifting frame (104), a push-pull plate (12) rotatably mounted on one end of the rotating plate (11) away from the rotating shaft, and the push-pull plate (12) is rotatably connected to one side of the lifting frame (104) at one end away from the rotating plate (11).

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