Box turnover machine for casting large and medium-sized shell molds

Abstract

The utility model discloses a box turnover machine for large and medium-sized shell mold casting, which comprises a box turnover device and a casting sand box, the box turnover device comprises a base, support plates are fixedly arranged on two sides of the top of the base, turntables are rotatably arranged on the inner sides of the two support plates, the casting sand box is fixedly mounted between the two turntables, and the turntables are fixedly connected with the base. And connecting columns are fixedly arranged on the opposite sides of the two rotating discs, connecting bases are hinged to the outer walls of the connecting columns, hydraulic cylinders are hinged to the base, and the ends, away from the base, of the hydraulic cylinders are fixedly connected with the connecting bases. The casting sand box and the box overturning device are arranged into a whole, pouring is directly carried out, after pouring is completed, box overturning can be directly carried out to pour out formed castings and sand in the box, the steps of repeated hoisting and locking are omitted, operation is easy and convenient, production time is shortened, and production efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of shell mold casting box turning, and more specifically to a large and medium-sized box turning machine for shell mold casting. Background Art

[0002] The box turner is mainly used in shell mold and core casting workshops and lost foam casting workshops to turn over the sand box with molten iron and pour out the castings and sand inside. The main usage is: after the sand box is moved to the turning body, the locking device is used to firmly fix the sand box on the turning body so that it forms an integral part with the turning body. The lifting device installed on the base rotates the turning body together with the sand box along the fixed axis. After rotating to the set angle, the formed castings and sand in the sand box are poured out, avoiding the unsafe factors of manual operation and improving production efficiency.

[0003] Although the box turning device in the prior art can achieve the purpose of turning over the casting box, it still has many disadvantages in actual use. The box turning device and the sand box in the prior art are generally divided into two separate devices. When the sand box needs to be turned over during use, the sand box that has been poured needs to be transported to the box turning device through a lifting device and locked. After locking, the box is turned over, the box is unlocked and the sand box is taken down again by the lifting equipment for the next pouring. The operation is complicated and time-consuming, which makes it inconvenient to use. The actual use effect is not ideal, and the production efficiency is affected. Utility Model Content

[0004] In view of the problems existing in the prior art, the utility model aims to provide a box turning machine for large and medium-sized shell mold casting.

[0005] To solve the above problems, the utility model adopts the following technical solutions.

[0006] A box turning machine for large and medium-sized shell mold casting, including a box turning device and a casting sand box, the box turning device includes a base, support plates are fixedly arranged on both sides of the top of the base, turntables are rotatably arranged on the inner sides of the two support plates, the casting sand box is fixedly installed between the two turntables, connecting columns are fixedly arranged on the opposite sides of the two turntables, a connecting seat is hingedly installed on the outer wall of the connecting column, a hydraulic cylinder is hingedly installed on the base, and the end of the hydraulic cylinder away from the base is fixedly connected to the connecting seat.

[0007] As a further description of the above technical solution: two symmetrically distributed edges are welded to the outer wall of the casting sand box, and evenly distributed through holes are opened on the surface of the edges. A holder adapted to the edges is fixedly connected between the two turntables, and the edges can be inserted into the holder. A nut corresponding to the through hole is embedded on one side of the holder, and a bolt is inserted on the other side of the holder, and one end of the bolt passes through the through hole and is threadedly connected to the inner circle of the nut.

[0008] As a further description of the above technical solution: a slot is provided on the outer ring of the turntable, and an annular protrusion is fixedly provided on the inner side of the support plate, and the annular protrusion is located inside the slot.

[0009] As a further description of the above technical solution: balls distributed in a circumferential array are embedded on the inner ring and both side walls of the annular protrusion, and the balls are in contact with the inner wall of the slot.

[0010] As a further description of the above technical solution: two limiting plates are fixedly connected to the side surface of each support plate, and the angle between two adjacent limiting plates is greater than 90° and less than 180°.

[0011] As a further description of the above technical solution: the thickness of the limit plate is smaller than the distance between the hydraulic cylinder and the support plate, and when the connecting column contacts the limit plate above, the casting sand box is in a horizontal state with the opening facing upward.

[0012] As a further description of the above technical solution: both ends of the two edges are higher than the upper surface of the casting sand box, and a chute is installed between the two ends of the two edges.

[0013] As a further description of the above technical solution: the area of ​​the bottom of the chute is larger than the area of ​​the upper surface of the casting sand box, the front and rear sides of the chute are arranged one high and one low, and the higher side of the chute faces the rotation direction of the casting sand box.

[0014] Compared with the prior art, the advantages of the present invention are:

[0015] This solution integrates the casting sand box and the box turning device, and directly performs pouring. After the pouring is completed, the box can be directly turned over to pour out the formed castings and sand in the box, eliminating the steps of repeated lifting and locking. The operation is simple and convenient, the production time is shortened, and the production efficiency is improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the overall three-dimensional structure of the utility model;

[0017] Figure 2 This is a schematic diagram of the structure of the connection between the turntable and the card seat of the utility model;

[0018] Figure 3 For this utility model Figure 2 The enlarged schematic diagram at A in the middle;

[0019] Figure 4 It is a three-dimensional structural schematic diagram of the support plate of the utility model;

[0020] Figure 5It is a structural schematic diagram of the casting sand box and the edge connection of the utility model.

[0021] Description of the numbers in the figure:

[0022] 1. Casting sand box; 2. Box turning device; 21. Base; 22. Support plate; 23. Turntable; 24. Connecting column; 25. Connecting seat; 26. Hydraulic cylinder; 3. Edge; 4. Through hole; 5. Clamping seat; 6. Nut; 7. Bolt; 8. Clamping groove; 9. Annular protrusion; 10. Ball; 11. Limiting piece; 12. Chute. DETAILED DESCRIPTION

[0023] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings in the embodiments of the present invention;

[0024] See also Figures 1 to 5 In the utility model, a box turning machine for large and medium-sized shell mold casting includes a box turning device 2 and a casting sand box 1. The box turning device 2 includes a base 21. Support plates 22 are fixedly arranged on both sides of the top of the base 21. Turntables 23 are rotatably arranged on the inner sides of the two support plates 22. The casting sand box 1 is fixedly installed between the two turntables 23. Connecting columns 24 are fixedly arranged on the opposite sides of the two turntables 23. A connecting seat 25 is hingedly installed on the outer wall of the connecting column 24. A hydraulic cylinder 26 is hingedly installed on the base 21. The end of the hydraulic cylinder 26 away from the base 21 is fixedly connected to the connecting seat 25.

[0025] In this embodiment, preferably, two symmetrically distributed edges 3 are welded to the outer wall of the casting sand box 1, and evenly distributed through holes 4 are opened on the surface of the edge 3. A holder 5 adapted to the edge 3 is fixedly connected between the two turntables 23, and the edge 3 can be inserted into the holder 5. A nut 6 corresponding to the through hole 4 is embedded on one side of the holder 5, and a bolt 7 is interspersed on the other side of the holder 5. One end of the bolt 7 passes through the through hole 4 and is threadedly connected to the inner circle of the nut 6.

[0026] In this embodiment, preferably, a slot 8 is formed on the outer ring of the turntable 23 , and an annular protrusion 9 is fixedly provided on the inner side of the support plate 22 , and the annular protrusion 9 is located inside the slot 8 .

[0027] In this embodiment, preferably, balls 10 distributed in a circular array are embedded on the inner ring and both side walls of the annular protrusion 9, and the balls 10 are in contact with the inner wall of the groove 8; through the arrangement of the annular protrusion 9, the groove 8 and the balls 10, the turntable 23 and the support plate 22 can rotate.

[0028] In this embodiment, preferably, two limiting plates 11 are fixedly connected to the side of each support plate 22 , and the angle between two adjacent limiting plates 11 is greater than 90° and less than 180°; the limiting plates 11 limit the rotation of the turntable 23 .

[0029] In this embodiment, preferably, the thickness of the limit plate 11 is smaller than the distance between the hydraulic cylinder 26 and the support plate 22. When the connecting column 24 contacts the upper limit plate 11, the casting sand box 1 is in a horizontal state with its opening facing upward; when the hydraulic cylinder 26 rotates the turntable 23, the hydraulic cylinder 26 will not contact the limit plate 11 and cause interference.

[0030] In this embodiment, preferably, both ends of the two edges 3 are higher than the upper surface of the casting sand box 1, and a chute 12 is installed between the two ends of the two edges 3.

[0031] In this embodiment, preferably, the area of ​​the bottom of the chute 12 is larger than the area of ​​the upper surface of the casting sand box 1, and the front and rear sides of the chute 12 are arranged one high and one low, with the higher side of the chute 12 facing the rotation direction of the casting sand box 1; the chute 12 facilitates the pouring out of the formed castings and sand in the casting sand box 1.

[0032] The working principle and use process of this utility model:

[0033] First, the edge 3 is welded and fixed to the outside of the casting sand box 1, and then the chute 12 is welded to the edge 3. The casting sand box 1 is lifted by the lifting equipment so that the edge 3 and the holder 5 correspond to each other, and the edge 3 is inserted into the holder 5. The bolt 7 passes through the through hole 4 on the edge 3 and is threadedly connected with the nut 6. The casting sand box 1 is installed on the holder 5 through the edge 3. The hydraulic cylinder 26 is in an extended state, so that the casting sand box 1 is in a horizontal state.

[0034] Then, the casting sand box 1 is used for casting. After the casting is completed, the hydraulic cylinder 26 is retracted. Since one end of the hydraulic cylinder 26 is hinged to the base 21, and the other end is hinged to the connecting column 24 through the connecting seat 25, the hydraulic cylinder 26 can be retracted to pull the connecting column 24 through the connecting seat 25, and the connecting column 24 drives the turntable 23 to rotate. The turntable 23 is connected to the card seat 5 to turn over the casting sand box 1 fixed to the card seat 5. After the connecting column 24 contacts the limit plate 11, the rotation of the turntable 23 is stopped, and the turntable 23 can be rotated to the set angle. The formed castings and sand in the casting sand box 1 will be poured out through the chute 12, avoiding the unsafe factors of manual operation and improving the production efficiency.

[0035] In the above process, the casting sand box 1 and the box turning device 2 are integrated, and pouring is carried out directly. After pouring is completed, the box can be directly turned over to pour out the formed castings and sand in the box, eliminating the steps of repeated lifting and locking. The operation is simple and convenient, the production time is shortened, and the production efficiency is improved.

[0036] The electronic components and modules used in the content of this utility model can all be parts that are commonly used in the market and can realize the specific functions in this case, and the specific models and sizes can be selected and adjusted according to actual needs. The electronic components and modules are all connected to an external power supply and a control switch for use. Their specific circuit connection methods and methods of use are commonly used public technologies and will not be elaborated on here.

[0037] The above is only a preferred specific implementation of the utility model; however, the protection scope of the utility model is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical solution and improved ideas of the utility model within the technical scope disclosed by the utility model, which should be included in the protection scope of the utility model.

Claims

1. A box turning machine for large and medium-sized shell mold casting, comprising a box turning device (2) and a casting sand box (1), characterized in that: The box turning device (2) comprises a base (21), support plates (22) are fixedly arranged on both sides of the top of the base (21), turntables (23) are rotatably arranged on the inner sides of the two support plates (22), the casting sand box (1) is fixedly installed between the two turntables (23), connecting columns (24) are fixedly arranged on the opposite sides of the two turntables (23), and a connecting seat (25) is hingedly installed on the outer wall of the connecting column (24), and a hydraulic cylinder (26) is hingedly installed on the base (21), and the end of the hydraulic cylinder (26) away from the base (21) is fixedly connected to the connecting seat (25).

2. A large and medium-sized shell mold casting box turning machine according to claim 1, characterized in that: The outer wall of the casting sand box (1) is welded with two symmetrically distributed edges (3), and the surface of the edges (3) is provided with evenly distributed through holes (4). A holder (5) adapted to the edges (3) is fixedly connected between the two turntables (23), and the edges (3) can be inserted into the holder (5). A nut (6) corresponding to the through hole (4) is embedded on one side of the holder (5), and a bolt (7) is inserted on the other side of the holder (5), and one end of the bolt (7) passes through the through hole (4) and is threadedly connected to the inner ring of the nut (6).

3. A large and medium-sized shell mold casting box turning machine according to claim 1, characterized in that: The outer ring of the rotating disk (23) is provided with a clamping groove (8), and the inner side of the supporting plate (22) is fixedly provided with an annular protrusion (9), and the annular protrusion (9) is located inside the clamping groove (8).

4. A large and medium-sized shell mold casting box turning machine according to claim 3, characterized in that: The inner ring and both side walls of the annular protrusion (9) are embedded with balls (10) distributed in a circumferential array, and the balls (10) are in contact with the inner wall of the slot (8).

5. A large and medium-sized shell mold casting box turning machine according to claim 1, characterized in that: Two limiting plates (11) are fixedly connected to the side surface of each support plate (22), and the angle between two adjacent limiting plates (11) is greater than 90° and less than 180°.

6. A large and medium-sized shell mold casting box turning machine according to claim 5, characterized in that: The thickness of the limiting plate (11) is smaller than the distance between the hydraulic cylinder (26) and the support plate (22); when the connecting column (24) contacts the limiting plate (11) above, the casting sand box (1) is in a horizontal state with its opening facing upward.

7. A large and medium-sized shell mold casting box turning machine according to claim 2, characterized in that: Both ends of the two edges (3) are higher than the upper surface of the casting sand box (1), and a chute (12) is installed between the two ends of the two edges (3).

8. A large and medium-sized shell mold casting box turning machine according to claim 7, characterized in that: The area of ​​the bottom of the chute (12) is larger than the area of ​​the upper surface of the casting sand box (1), and the front and rear sides of the chute (12) are arranged one high and one low, with the higher side of the chute (12) facing the rotation direction of the casting sand box (1).

Images