A roll sleeve sand core turnover device

Abstract

The utility model belongs to the roller sleeve sand core turnover device in the roller sleeve sand core making technical field. Device base (1) one side sets up first turnover lever (2), device base (1) the other side sets up second turnover lever (3), device base (1) one side sets up roller sleeve sand core first positioning lever (4), device base (1) the other side sets up roller sleeve sand core second positioning lever (5), first turnover lever (2) is equipped with first hoisting chain (6), second turnover lever (3) is equipped with second hoisting chain (7). The roller sleeve sand core turnover device, can be convenient and reliable to realize the turnover operation of roller sleeve sand core, and one person can realize the turnover of roller sleeve sand core, convenient operation, improve the operation efficiency, there is no nail loosening and falling off after the roller sleeve sand core demoulding, improve the sand core making quality.

Description

Technical Field

[0001] This utility model belongs to the field of roller sleeve sand core manufacturing technology, and more specifically, it relates to a roller sleeve sand core flipping device. Background Technology

[0002] In the field of roller sleeve sand cores, the core is made with the front side facing up and the cast pins facing down. After production, the core needs to be rotated 180° so that the cast pins face up, allowing for faster drying. However, a single roller sleeve sand core for the D-line weighs approximately 600 kg. After core production, flipping and removing it from the mold requires four people. Furthermore, because its stress surface is curved, it is unstable after flipping, prone to deformation, and the cast pins can easily fall off during demolding, affecting the core quality.

[0003] Existing technology includes a patent titled "A Combined Sand Core and Its Core-Making Mold and Method," with publication number "A Combined Sand Core and Its Core-Making Mold and Method." This patent discloses a combined sand core and its core-making mold and method. The mold includes a base frame, a lower core-ejecting mechanism, a lower mold base plate, a sand core forming mechanism, an upper mold base plate, a sand-shooting mechanism, an upper core-ejecting mechanism, upper and lower positioning mechanisms, a side-pull mechanism, and a guiding mechanism. This invention achieves the integration of the water jacket sand core and the top cover sand core into a single unit; it enables the core-making of the entire core assembly. After the core assembly is completed, the side-pull mechanism pulls apart the left and right modules, the core-ejecting mechanism ejects the core assembly, the core-removing fixture clamps the sand core and rotates it 180°, placing the core assembly on a roller conveyor tray for transport to the next process; it reduces the types of molds, simplifies the structure of the robot core-removing fixture, optimizes the core-removing robot's core-removing program, improves production efficiency, reduces the workload of subsequent processes, and simultaneously saves production costs. However, this patent does not address the technical problems and solutions of this application. Utility Model Content

[0004] The technical problem to be solved by this utility model is to provide a roller sleeve sand core turning device that is simple in structure, can conveniently and reliably realize the turning operation of roller sleeve sand core, can be turned by one person, is easy to operate, improves work efficiency, and has no nail loosening or falling off after the roller sleeve sand core is demolded, thus improving the quality of sand core production.

[0005] To solve the above-mentioned technical problems, the technical solution adopted by this utility model is as follows:

[0006] This utility model is a roller sleeve sand core turning device, including a device base, a first turning rod is provided on one side of the device base, a second turning rod is provided on the other side of the device base, a first positioning rod for the roller sleeve sand core is provided on one side of the device base, a second positioning rod for the roller sleeve sand core is provided on the other side of the device base, the first turning rod is fitted with a first lifting chain, and the second turning rod is fitted with a second lifting chain.

[0007] The first flipping rod of the roller sleeve sand core flipping device includes a flipping rod end and a flipping rod body. The flipping rod end and the flipping rod body of the first flipping rod have a T-shaped structure, and the flipping rod body of the first flipping rod has a cylindrical structure.

[0008] The second flipping rod of the roller sleeve sand core flipping device includes a flipping rod end and a flipping rod body. The flipping rod end and the flipping rod body of the second flipping rod have a T-shaped structure, and the flipping rod body of the second flipping rod has a cylindrical structure.

[0009] The lower part of the first positioning rod of the roller sleeve sand core passes through the device base, and the upper part of the first positioning rod of the roller sleeve sand core passes through the roller sleeve sand core. The threaded part of the first positioning rod of the roller sleeve sand core at the lower part of the device base is screwed with a lower fastening nut, and the threaded part of the first positioning rod of the roller sleeve sand core at the upper part of the roller sleeve sand core is screwed with an upper fastening nut.

[0010] The lower part of the second positioning rod of the roller sleeve sand core passes through the device base, and the upper part of the second positioning rod of the roller sleeve sand core passes through the roller sleeve sand core. The threaded part of the second positioning rod of the roller sleeve sand core at the lower part of the device base is screwed with a lower fastening nut, and the threaded part of the second positioning rod of the roller sleeve sand core at the upper part of the roller sleeve sand core is screwed with an upper fastening nut.

[0011] The first and second lifting chains are respectively connected to the crane, and the lower parts of both the first and second lifting chains have a U-shaped structure.

[0012] The device base is provided with support legs at the bottom.

[0013] A first limiting protrusion is provided on one side of the upper part of the device base, and a second limiting protrusion is provided on the other side of the upper part of the device base.

[0014] The lower part of the first positioning rod of the roller sleeve sand core passes through the first limiting protrusion of the device base, and the lower part of the second positioning rod of the roller sleeve sand core passes through the second limiting protrusion of the device base.

[0015] The working principle and beneficial effects of this utility model are as follows:

[0016] The roller sleeve sand core turning device of this utility model has a first mold (lower mold) set on the upper surface of the device base. When the roller sleeve sand core is made, the second mold (upper mold) is fixed on the upper mold of the device base. The connection between the first positioning rod and the second positioning rod of the roller sleeve sand core ensures that the upper mold is reliably fixed on the device base and will not fall off. Then, the roller sleeve sand core is made using the upper and lower molds. After the roller sleeve sand core is made, the lower part of the first lifting chain of the crane is hooked onto the first tilting rod, and the lower part of the second lifting chain of the crane is hooked onto the second tilting rod. Then, the device base is lifted. Because the center of gravity factor was considered during the manufacturing of the first and second tilting rods of the device base, the device base will not reverse relative to the first and second lifting chains during lifting. The device base is in a horizontal state, and the roller sleeve sand core is located inside the lower and upper molds above the device base. After the crane lifts the device base, the operator applies force to the device base. Due to the intervention of external force, the device base will reverse relative to the first and second lifting chains, that is, the device base will rotate 180°. At this time, the upper and lower molds will flip to the position below the device base. Then, the crane moves down, so that the upper mold falls to the ground. The first and second positioning rods of the roller sleeve sand core are removed, and the upper mold and the lower mold above the device base are separated. At this time, the roller sleeve sand core is located on the upper mold. The device base is then lifted by a crane, separating it from the upper mold, allowing for convenient and reliable flipping. The entire operation requires minimal personnel and eliminates the need for manual lifting and flipping, reducing labor intensity and increasing efficiency. Attached Figure Description

[0017] The following is a brief explanation of the contents depicted in the accompanying drawings and the markings therein:

[0018] Figure 1 This is a schematic diagram of the structure of the roller sleeve sand core turning device of this utility model;

[0019] Figure 2 This is a side view of the base of the roller sleeve sand core turning device of this utility model.

[0020] Figure 3 This is a top view of the base of the roller sleeve sand core turning device of this utility model;

[0021] The labels in the attached diagram are as follows: 1. Device base; 2. First tilting rod; 3. Second tilting rod; 4. First positioning rod of roller sleeve sand core; 5. Second positioning rod of roller sleeve sand core; 6. First lifting chain; 7. Second lifting chain; 8. End of tilting rod; 9. Tilting rod body; 10. Roller sleeve sand core; 11. Lower fastening nut; 12. Upper fastening nut; 13. Hoist; 14. Support leg; 15. First limiting protrusion; 16. Second limiting protrusion. Detailed Implementation

[0022] The following description, with reference to the accompanying drawings, provides a more detailed explanation of the specific embodiments of this utility model, including the shape and structure of each component, the relative positions and connections between the parts, the functions and working principles of each part:

[0023] As attached Figure 1 - Appendix Figure 3 As shown, this utility model is a roller sleeve sand core turning device, including a device base 1, a first turning rod 2 provided on one side of the device base 1, a second turning rod 3 provided on the other side of the device base 1, a first positioning rod 4 for the roller sleeve sand core provided on one side of the device base 1, and a second positioning rod 5 for the roller sleeve sand core provided on the other side of the device base 1. The first turning rod 2 is fitted with a first lifting chain 6, and the second turning rod 3 is fitted with a second lifting chain 7. The above structure addresses the shortcomings of the prior art by proposing an improved technical solution. A first mold (lower mold) is provided on the upper surface of the device base 1. During the production of the roller sleeve sand core, the second mold (upper mold) is fixed to the upper mold of the device base 1. The connection between the first positioning rod 4 and the second positioning rod 5 ensures that the upper mold is reliably fixed to the device base 1 and will not fall off. Then, the roller sleeve sand core is made using the upper and lower molds. After the roller sleeve sand core is made, the lower part of the first lifting chain 6 of the hoist 13 is hooked onto the first tilting rod 2, and the lower part of the second lifting chain 7 of the hoist 13 is hooked onto the second tilting rod 3. Then, the device base 1 is lifted. Because the center of gravity factor has been considered when the first tilting rod 2 and the second tilting rod 3 of the device base 1 are made, the device base 1 will not reverse relative to the first lifting chain 6 and the second lifting chain 7 during the lifting. The device base 1 is in a horizontal state. The roller sleeve sand core 10 is located inside the lower and upper molds above the device base 1. After the hoist 13 lifts the device base 1, the operator applies force to the device base 1. Due to the intervention of the external force, the device base 1 will reverse relative to the first lifting chain 6 and the second lifting chain 7, that is, the device base 1 will rotate 180°. At this time, the upper and lower molds will flip to the position below the device base 1. Then, the crane 13 moves down, allowing the upper mold to fall to the ground. The first positioning rod 4 and the second positioning rod 5 of the roller sleeve sand core are removed, separating the upper mold from the lower mold on the upper part of the device base 1. At this time, the roller sleeve sand core 10 is located on the upper mold. Then, the device base 1 is lifted by the crane 13, and the device base 1 is separated from the upper mold, making the flipping convenient and reliable. The entire operation does not require many personnel, nor does it require manual lifting and flipping, reducing the labor intensity of personnel and improving efficiency. The roller sleeve sand core flipping device described in this utility model has a simple structure, which can conveniently and reliably realize the flipping operation of the roller sleeve sand core. One person can perform the flipping of the roller sleeve sand core, making the operation convenient and improving the work efficiency. After the roller sleeve sand core is demolded, there is no loosening or falling off of nails, which improves the quality of sand core production.

[0024] The first rotating rod 2 of the roller sleeve sand core turning device includes a rotating rod end 8 and a rotating rod body 9. The rotating rod end 8 and the rotating rod body 9 of the first rotating rod 2 have a T-shaped structure, and the rotating rod body 9 of the first rotating rod 2 has a cylindrical structure. The second rotating rod 3 of the roller sleeve sand core turning device also includes a rotating rod end 8 and a rotating rod body 9. The rotating rod end 8 and the rotating rod body 9 of the second rotating rod 3 have a T-shaped structure, and the rotating rod body 9 of the second rotating rod 3 has a cylindrical structure. In the above structure, the rotating rod body 9 of the first rotating rod 2 is perpendicular to one side of the device base 1, and the rotating rod body 9 of the second rotating rod 3 is perpendicular to the other side of the device base 1. The corresponding rotating rod end 8 plays a reliable limiting role, preventing the first lifting chain 6 from falling off the first rotating rod 2 when lifting the device base 1, and preventing the second lifting chain 7 from falling off the second rotating rod 3 when lifting the device base 1, thus ensuring reliable lifting.

[0025] The lower part of the first positioning rod 4 of the roller sleeve sand core passes through the device base 1, and the upper part of the first positioning rod 4 of the roller sleeve sand core passes through the roller sleeve sand core 10. The threaded part of the first positioning rod 4 of the roller sleeve sand core at the lower part of the device base 1 is screwed with a lower fastening nut 11, and the threaded part of the first positioning rod 4 of the roller sleeve sand core at the upper part of the roller sleeve sand core 10 is screwed with an upper fastening nut 12. With the above structure, the lower fastening nut 11 and the upper fastening nut 12 are screwed at different positions on the first positioning rod 4 of the roller sleeve sand core, which reliably limits the upper mold and the device base 1, ensuring that it will not fall off during flipping.

[0026] The lower part of the second positioning rod 5 of the roller sleeve sand core passes through the device base 1, and the upper part of the second positioning rod 5 of the roller sleeve sand core passes through the roller sleeve sand core 10. The threaded part of the second positioning rod 5 of the roller sleeve sand core at the lower part of the device base 1 is screwed with a lower fastening nut 11, and the threaded part of the second positioning rod 5 of the roller sleeve sand core at the upper part of the roller sleeve sand core 10 is screwed with an upper fastening nut 12. With the above structure, the lower fastening nut 11 and the upper fastening nut 12 are screwed at different positions on the second positioning rod 5 of the roller sleeve sand core, which reliably limits the upper mold and the device base 1, ensuring that it will not fall off during flipping.

[0027] The first lifting chain 6 and the second lifting chain 7 are respectively connected to the crane 13, and the lower parts of both the first lifting chain 6 and the second lifting chain 7 have a U-shaped structure. With the above structure, the first lifting chain 6 and the second lifting chain 7 can reliably hook onto the corresponding turning rod to realize the lifting and turning of the device base.

[0028] The device base 1 has a support leg 14 at its lower part. A first limiting protrusion 15 is provided on one side of the upper part of the device base 1, and a second limiting protrusion 16 is provided on the other side of the upper part of the device base 1. The lower part of the first positioning rod 4 of the roller sleeve sand core passes through the first limiting protrusion 15 of the device base 1, and the lower part of the second positioning rod 5 of the roller sleeve sand core passes through the second limiting protrusion 16 of the device base 1.

[0029] The roller sleeve sand core turning device of this utility model has a first mold (lower mold) set on the upper surface of the device base 1. When the roller sleeve sand core is made, the second mold (upper mold) is fixed on the upper mold of the device base 1. The connection between the first positioning rod 4 and the second positioning rod 5 of the roller sleeve sand core ensures that the upper mold is reliably fixed on the device base 1 and will not fall off. Then, the roller sleeve sand core is made using the upper and lower molds. After the roller sleeve sand core is made, the lower part of the first lifting chain 6 of the hoist 13 is hooked onto the first tilting rod 2, and the lower part of the second lifting chain 7 of the hoist 13 is hooked onto the second tilting rod 3. Then, the device base 1 is lifted. Because the center of gravity factor has been considered when the first tilting rod 2 and the second tilting rod 3 of the device base 1 are made, the device base 1 will not reverse relative to the first lifting chain 6 and the second lifting chain 7 during the lifting. The device base 1 is in a horizontal state. The roller sleeve sand core 10 is located inside the lower and upper molds above the device base 1. After the hoist 13 lifts the device base 1, the operator applies force to the device base 1. Due to the intervention of the external force, the device base 1 will reverse relative to the first lifting chain 6 and the second lifting chain 7, that is, the device base 1 will rotate 180°. At this time, the upper and lower molds will flip to the position below the device base 1. Then, the crane 13 lowers the upper mold to the ground, and the first positioning rod 4 and the second positioning rod 5 of the roller sleeve sand core are removed. The upper mold separates from the lower mold on the upper part of the device base 1, at which point the roller sleeve sand core 10 is located on the upper mold. The device base 1 is then lifted by the crane 13, and the device base 1 is separated from the upper mold, making the flipping process convenient and reliable. The entire operation does not require a large number of personnel, nor does it require manual lifting and flipping, thereby reducing the labor intensity of personnel and improving work efficiency.

[0030] The present invention has been described above with reference to the accompanying drawings. Obviously, the specific implementation of the present invention is not limited to the above-described manner. Any improvements made using the inventive concept and technical solution of the present invention, or the direct application of the inventive concept and technical solution to other situations without modification, are all within the protection scope of the present invention.

Claims

1. A roller sleeve sand core turning device, characterized in that: The device includes a base (1), a first flipping rod (2) on one side of the base (1), a second flipping rod (3) on the other side of the base (1), a first positioning rod (4) for a roller sleeve sand core on one side of the base (1), a second positioning rod (5) for a roller sleeve sand core on the other side of the base (1), a first lifting chain (6) fitted onto the first flipping rod (2), and a second lifting chain (7) fitted onto the second flipping rod (3).

2. The roller sleeve sand core turning device according to claim 1, characterized in that: The first flipping rod (2) of the roller sleeve sand core flipping device includes a flipping rod end (8) and a flipping rod body (9). The flipping rod end (8) and the flipping rod body (9) of the first flipping rod (2) are in a T-shape, and the flipping rod body (9) of the first flipping rod (2) is in a cylindrical shape.

3. The roller sleeve sand core turning device according to claim 2, characterized in that: The second flipping rod (3) of the roller sleeve sand core flipping device includes a flipping rod end (8) and a flipping rod body (9). The flipping rod end (8) and the flipping rod body (9) of the second flipping rod (3) are T-shaped, and the flipping rod body (9) of the second flipping rod (3) is cylindrical.

4. The roller sleeve sand core turning device according to claim 2, characterized in that: The lower part of the first positioning rod (4) of the roller sleeve sand core passes through the device base (1), and the upper part of the first positioning rod (4) of the roller sleeve sand core passes through the roller sleeve sand core (10). The threaded part of the first positioning rod (4) of the roller sleeve sand core at the lower part of the device base (1) is screwed with the lower fastening nut (11), and the threaded part of the first positioning rod (4) of the roller sleeve sand core at the upper part of the roller sleeve sand core (10) is screwed with the upper fastening nut (12).

5. The roller sleeve sand core turning device according to claim 3, characterized in that: The lower part of the second positioning rod (5) of the roller sleeve sand core passes through the device base (1), and the upper part of the second positioning rod (5) of the roller sleeve sand core passes through the roller sleeve sand core (10). The threaded part of the second positioning rod (5) of the roller sleeve sand core at the lower part of the device base (1) is screwed with the lower fastening nut (11), and the threaded part of the second positioning rod (5) of the roller sleeve sand core at the upper part of the roller sleeve sand core (10) is screwed with the upper fastening nut (12).

6. The roller sleeve sand core turning device according to claim 1 or 2, characterized in that: The first lifting chain (6) and the second lifting chain (7) are respectively connected to the crane (13), and the lower part of the first lifting chain (6) and the second lifting chain (7) are both U-shaped.

7. The roller sleeve sand core turning device according to claim 1 or 2, characterized in that: The device base (1) is provided with a support leg (14) at the bottom.

8. The roller sleeve sand core turning device according to claim 1 or 2, characterized in that: A first limiting protrusion (15) is provided on one side of the upper part of the device base (1), and a second limiting protrusion (16) is provided on the other side of the upper part of the device base (1).

9. The roller sleeve sand core turning device according to claim 1 or 2, characterized in that: The lower part of the first positioning rod (4) of the roller sleeve sand core passes through the first limiting protrusion (15) of the device base (1), and the lower part of the second positioning rod (5) of the roller sleeve sand core passes through the second limiting protrusion (16) of the device base (1).

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