Sand box sand discharging mechanism for evanescent mode casting

Abstract

The utility model relates to a sand box sand discharging mechanism for evanescent mode castings, which comprises a fixing frame, a box body, a screen frame and a collecting box are sequentially arranged on the inner side of the fixing frame from top to bottom, a quick release mechanism is arranged between the box body and the fixing frame, and a connecting mechanism is arranged between the screen frame and the fixing frame. And the quick release mechanism comprises two box bodies, the box bodies are fixedly installed on the left side and the right side of the box body, pressing rods are connected to the tops of the two box bodies in an inserted mode, sliding plates are movably installed in the two box bodies, and first springs are fixedly installed between the sides, away from each other, of the two sliding plates and the inner walls of the box bodies. According to the sand box sand discharging mechanism for the evanescent mode casting, the two box bodies and the two block bodies can be rapidly assembled and disassembled, so that rapid assembly and disassembly between the box bodies and the fixing frame are achieved, it is ensured that when sand discharging maintenance needs to be conducted on the box bodies, workers can complete operation tasks in a rapid mode, and the labor intensity of workers is relieved. And the overall operation efficiency is greatly improved.

Description

Technical Field

[0001] The utility model relates to the technical field of casting, in particular to a sand box sand discharge mechanism for lost foam castings. Background Art

[0002] Lost foam castings are easy to realize mechanized automatic assembly line production. The production line is flexible and can produce castings of different alloys, shapes and sizes on one production line.

[0003] The sand box for lost foam castings is different according to the production of large, medium and small castings. It is suitable for multi-model combination. An excellent sand box can improve the casting yield, improve production efficiency and reduce casting manufacturing costs.

[0004] After searching, for example, the utility model patent with Chinese patent announcement number CN216632550U discloses a sand box discharge mechanism for lost foam casting, including a fixed frame, a casting sand box is arranged on the inner side of the fixed frame, and a control mechanism is arranged below the casting sand box, a sand screening box is arranged below the control mechanism, and a movable rod is arranged on the side of the sand screening box, a cylinder is arranged at the end of the movable rod, a sand storage box is arranged below the sand screening box, and a connecting plate is arranged on the side of the sand storage box, and a fixing nail is penetrated inside the connecting plate, a clamping block is arranged on the side of the casting sand box, and a hinged plate is arranged on the side of the clamping block, and a fixing screw is penetrated inside the hinged plate, this device is provided with a casting sand box, and the staff first puts the sand into the casting sand box; the utility model solves the problem of inconvenience in quickly screening out unmelted metal and agglomerated sand, inconvenience in reusing the sand after cooling, and saving resources through the arrangement of the sand screening box and the movable rod.

[0005] However, there are two problems with the device in the above utility model patent: 1. The sand box adopts a fixing method of a fixed screw, which is not convenient during installation and disassembly; 2. The sand screening box cannot be disassembled, resulting in inconvenience in removing unqualified materials screened out of the sand screening box. Therefore, a sand box sand discharge mechanism for lost foam castings is proposed to solve the above problems. Utility Model Content

[0006] In view of the shortcomings of the prior art, the utility model provides a sand box sand discharge mechanism for lost foam castings, which has the advantages of easy installation and disassembly of the sand box, and solves the problem that the device sand box in the above-mentioned utility model patent adopts a fixing method of fixed screws, which is not convenient during installation and disassembly.

[0007] To achieve the above object, the utility model provides the following technical solutions: a sand box discharge mechanism for lost foam castings, comprising a fixed frame, the inner side of which is provided with a box body, a screen frame and a collection box from top to bottom, a quick release mechanism is provided between the box body and the fixed frame, and a connecting mechanism is provided between the screen frame and the fixed frame;

[0008] The quick release mechanism comprises two box bodies, the left and right sides of the box body are fixedly mounted with box bodies, the tops of the two box bodies are plugged with pressure rods, the insides of the two box bodies are movably mounted with slides, the two slides are fixedly mounted with springs between the opposite sides of the two slides and the inner wall of the box body, the opposite sides of the two slides are fixedly mounted with locking rods, and the tops of the two slides are fixedly mounted with moving blocks;

[0009] The connecting mechanism comprises two fixing plates, the tops of the two fixing plates are fixedly mounted with vertical rods, the outer surfaces of the two vertical rods are sleeved with springs 2, and sleeve blocks are fixedly mounted on the left and right sides of the screen frame.

[0010] Furthermore, a limiting ring located on the outer surface of the pressure rod is fixedly installed on the top of the two box bodies, a pressure cap is fixedly installed on the top of the two pressure rods, and a spring three mounted on the outer surface of the pressure rod is fixedly installed between the two pressure caps and the limiting ring.

[0011] Furthermore, a slide groove is provided on the inner bottom wall of the two box bodies, and a sliding block slidably connected to the slide groove is fixedly installed on the bottom of the two slide plates.

[0012] Furthermore, the two movable blocks are both in the shape of a right-angled trapezoid, and the bottom ends of the two pressure rods are both slidably connected to the inclined surfaces of the movable blocks.

[0013] Furthermore, blocks are fixedly mounted on both the left and right sides of the box body, and locking holes adapted to the locking rods are provided on the opposite sides of the two blocks.

[0014] Furthermore, the insides of the two sets of blocks are provided with sliding holes adapted to the vertical rods, the bottom ends of the two springs are fixedly connected to the top of the fixed plate, and the collection box is plugged into the inner bottom wall of the fixed frame.

[0015] Furthermore, a discharge pipe is fixedly installed at the bottom of the box body, and a discharge valve is arranged on the discharge pipe.

[0016] Compared with the prior art, the technical solution of this application has the following beneficial effects:

[0017] 1. The sand box sand discharge mechanism for lost foam castings can quickly install and disassemble the two box bodies and the two blocks by setting a quick-disassembly mechanism, thereby realizing the rapid installation and disassembly between the box body and the fixed frame, ensuring that when the box body needs to be sand discharged for maintenance, the staff can complete the operation task in a quick manner, greatly improving the overall operation efficiency.

[0018] 2. The sand box sand discharge mechanism for the lost foam casting has a connecting mechanism, and the two sleeves can be sleeved on the outer surfaces of the two vertical rods. This design facilitates the easy removal of the screen frame and the cleaning of unqualified materials. Moreover, under the elastic force of the second spring, the gravity of the screen material falling into the screen frame can make the screen frame vibrate, thereby improving the screening efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic diagram of the structure of the utility model;

[0020] Figure 2 For this utility model Figure 1 A magnified view of the structure at center;

[0021] Figure 3 This is a schematic diagram of the screen frame structure of the utility model.

[0022] In the figure: 1. fixed frame; 2. box body; 3. screen frame; 4. collecting box; 5. quick release mechanism; 501. box body; 502. pressure rod; 503. slide plate; 504. spring one; 505. locking rod; 506. moving block; 507. block body; 51. limiting ring; 52. spring three; 6. connecting mechanism; 601. fixed plate; 602. vertical rod; 603. spring two; 604. sleeve block. DETAILED DESCRIPTION

[0023] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0024] See also Figure 1-3 A sand box sand discharge mechanism for lost foam casting in this embodiment includes a fixed frame 1, and the inner side of the fixed frame 1 is provided with a box body 2, a screen frame 3 and a collecting box 4 from top to bottom in sequence, a quick release mechanism 5 is provided between the box body 2 and the fixed frame 1, and a connecting mechanism 6 is provided between the screen frame 3 and the fixed frame 1.

[0025] The quick-release mechanism 5 includes two box bodies 501, the left and right sides of the box body 2 are fixedly installed with box bodies 501, the tops of the two box bodies 501 are plugged with pressure rods 502, the interiors of the two box bodies 501 are movably installed with slides 503, springs 504 are fixedly installed between the opposite sides of the two slides 503 and the inner wall of the box body 501, locking rods 505 are fixedly installed on the opposite sides of the two slides 503, and moving blocks 506 are fixedly installed on the tops of the two slides 503.

[0026] The tops of the two box bodies 501 are fixedly installed with limiting rings 51 located on the outer surface of the pressure rod 502, and the tops of the two pressure rods 502 are fixedly installed with pressure caps. A spring 52 mounted on the outer surface of the pressure rod 502 is fixedly installed between the two pressure caps and the limiting rings 51.

[0027] By utilizing the elastic force of spring one 504 and spring three 52, when the elastic force of spring one 504 and spring three 52 is released, the locking rod 505 can quickly return to its original position.

[0028] Slide grooves are provided on the inner bottom walls of the two box bodies 501, and sliders slidably connected to the slide grooves are fixedly installed on the bottoms of the two slide plates 503. The slide grooves and sliders are provided to improve the stability of the slide plates 503 when they move left and right.

[0029] Blocks 507 are fixedly mounted on both the left and right sides of the box body 2 , and locking holes adapted to the locking rods 505 are provided on opposite sides of the two blocks 507 .

[0030] The two locking rods 505 are inserted into or withdrawn from the two locking holes to achieve locking and separation between the two box bodies 501 and the two blocks 507 , so that the box body 2 and the fixing frame 1 can be quickly installed or removed.

[0031] The connecting mechanism 6 includes two fixed plates 601 , the tops of the two fixed plates 601 are fixedly mounted with vertical rods 602 , the outer surfaces of the two vertical rods 602 are sleeved with springs 603 , and sleeve blocks 604 are fixedly mounted on the left and right sides of the screen frame 3 .

[0032] The two sleeve blocks 604 are provided with sliding holes adapted to the vertical rods 602 , and the bottom ends of the two springs 603 are fixedly connected to the top of the fixing plate 601 .

[0033] The screen frame 3 can be inserted into the two vertical rods 602 through the sliding holes inside the sleeve blocks 604 on both sides. The designed length of the vertical rods 602 ensures that when the elastic force of the spring 2 603 is released, the sleeve block 604 can move freely up and down along its entire moving range without detaching, and the screen frame 3 can be easily removed. Through the contraction of the spring 2 603, the screen frame 3 can be shaken for screening.

[0034] A discharge pipe is fixedly installed at the bottom of the box body 2, and a discharge valve is arranged on the discharge pipe.

[0035] When the casting in the box body 2 is completed, the casting and sand can fall from the discharge pipe into the screen frame 3 for screening, and the screened sand falls into the collection box 4, which can be drawn out from the fixed frame 1.

[0036] When implementing, follow these steps:

[0037] 1) The staff first puts the sand material into the box 2, and then pours the molten metal into the lost foam casting sand mold cavity. After cooling and solidification, the lost foam casting is obtained. After the casting is completed, the discharge valve is opened;

[0038] 2) Then the casting and the sand material fall into the screen frame 3 through the discharge pipe for separation. When the casting and the sand material fall on the screen frame 3, under the action of gravity, the spring 2 603 is expanded and contracted, so that the screen frame 3 is shaken, which speeds up the screening efficiency;

[0039] 3) The screened sand falls into the collection box 4, and the casting remains in the screen frame 3;

[0040] 4) Finally, lift the screen frame 3 upwards so that the sleeve blocks 604 on both sides of the screen frame 3 leave the vertical rod 602, and the screen frame 3 can be removed; when the box body 2 is disassembled, press the two pressing rods 502 downwards so that the two moving blocks 506 move toward the direction close to the spring 1 504 through the slide plate 503 at the bottom to compress the spring 1 504, so that the two locking rods 505 withdraw from the inside of the two locking holes, and then lift the screen frame 3 upwards to remove the screen frame 3.

[0041] To sum up, the sand box sand discharge mechanism for lost foam castings can achieve rapid installation and disassembly between the two box bodies 501 and the two blocks 507 by setting a quick-release mechanism 5, thereby realizing rapid installation and disassembly between the box body 2 and the fixed frame 1, ensuring that when sand discharge maintenance is required on the box body 2, the staff can complete the operation task in a quick manner, thereby greatly improving the overall operating efficiency.

[0042] Furthermore, by setting up the connecting mechanism 6, the two sleeve blocks 604 can be sleeved on the outer surfaces of the two vertical rods 602. This design facilitates the easy removal of the screen frame 3 and the cleaning of unqualified materials; and under the elastic force of the spring 2 603, the gravity of the screen material falling into the screen frame 3 can make the screen frame 3 shake, thereby improving the screening efficiency.

[0043] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, the elements defined by the sentence "comprise a ..." do not exclude the existence of other identical elements in the process, method, article or device including the elements.

[0044] Although 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 the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A sand box discharge mechanism for lost foam casting, comprising a fixed frame (1), characterized in that: A box body (2), a screen frame (3) and a collection box (4) are arranged in order from top to bottom on the inner side of the fixed frame (1); a quick release mechanism (5) is arranged between the box body (2) and the fixed frame (1); and a connecting mechanism (6) is arranged between the screen frame (3) and the fixed frame (1); The quick-release mechanism (5) comprises two box bodies (501), the box bodies (501) are fixedly mounted on the left and right sides of the box body (2), the tops of the two box bodies (501) are plugged with pressure rods (502), the interiors of the two box bodies (501) are movably mounted with slide plates (503), springs (504) are fixedly mounted between the opposite sides of the two slide plates (503) and the inner wall of the box body (501), locking rods (505) are fixedly mounted on the opposite sides of the two slide plates (503), and moving blocks (506) are fixedly mounted on the tops of the two slide plates (503); The connecting mechanism (6) comprises two fixing plates (601), the tops of the two fixing plates (601) are fixedly mounted with vertical rods (602), the outer surfaces of the two vertical rods (602) are sleeved with springs 2 (603), and sleeve blocks (604) are fixedly mounted on the left and right sides of the screen frame (3).

2. The sand box discharge mechanism for lost foam casting according to claim 1, characterized in that: A limiting ring (51) located on the outer surface of the pressure rod (502) is fixedly installed on the top of the two box bodies (501), a pressure cap is fixedly installed on the top of the two pressure rods (502), and a spring three (52) sleeved on the outer surface of the pressure rod (502) is fixedly installed between the two pressure caps and the limiting ring (51).

3. The sand box sand discharge mechanism for lost foam casting according to claim 1, characterized in that: The inner bottom walls of the two box bodies (501) are both provided with sliding grooves, and the bottoms of the two slide plates (503) are both fixedly mounted with sliding blocks slidably connected to the sliding grooves.

4. The sand box discharge mechanism for lost foam casting according to claim 1, characterized in that: The two movable blocks (506) are both in the shape of right-angle trapezoids, and the bottom ends of the two pressure rods (502) are both slidably connected to the inclined surfaces of the movable blocks (506).

5. The sand box discharge mechanism for lost foam casting according to claim 1, characterized in that: Blocks (507) are fixedly mounted on both the left and right sides of the box body (2), and locking holes matching the locking rods (505) are provided on the opposite sides of the two blocks (507).

6. The sand box discharge mechanism for lost foam casting according to claim 1, characterized in that: The insides of the two sleeve blocks (604) are provided with sliding holes adapted to the vertical rod (602), the bottom ends of the two springs (603) are fixedly connected to the top of the fixed plate (601), and the collection box (4) is plugged into the inner bottom wall of the fixed frame (1).

7. The sand box discharge mechanism for lost foam casting according to claim 1, characterized in that: A discharge pipe is fixedly mounted on the bottom of the box body (2), and a discharge valve is arranged on the discharge pipe.

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