Hydraulic box-turning machine for V-process casting

Abstract

This utility model relates to the field of casting technology, specifically a hydraulic sand box tilting machine for V-process casting, comprising: a sand box; roller assemblies supporting the left and right ends of the sand box; the left roller assembly fixed to a folding bracket, the folding bracket being driven by a folding cylinder and rotated by the folding cylinder; the right roller assembly fixed to a translation bracket, the translation bracket being driven by a translation cylinder at its stroke end and translated by the translation cylinder; a tilting cylinder coaxially rotatably connected to the sand box fixed on the translation bracket, the rotation center line of the tilting cylinder and the rotation center line of the folding cylinder being spatially staggered and perpendicularly arranged; a pressing mechanism for pressing the sand box fixed on the folding bracket and the translation bracket. This utility model's hydraulic sand box tilting machine for V-process casting avoids collisions with the hoisted sand box, is suitable for sand boxes of various sizes; the snap-fit ​​structure prevents axial displacement of the sand box, and is easy to operate; the fixing components of the sand box are not affected by the high temperature of the casting sand.

Description

Technical Field

[0001] This utility model relates to the field of casting technology, specifically a hydraulic box-turning machine for V-process casting. Background Technology

[0002] V-process casting uses a plastic film to seal the sand box, and a vacuum system removes air from the mold, creating a pressure difference between the inside and outside of the mold. This causes the dry sand to compact, forming the desired cavity. After core placement, closing the upper and lower molds, pouring, and then vacuuming to solidify the casting, the negative pressure is released, and the molding sand collapses, yielding the final casting. Compared to traditional casting processes, V-process casting eliminates the need for traditional binders, offering advantages such as environmental friendliness, high precision, and low cost.

[0003] On V-process casting production lines, manual sand box turning is generally used, which involves using lifting equipment to hoist the sand boxes before turning them over. This conventional method is labor-intensive and inefficient; therefore, mechanical sand box turning machines have been adopted.

[0004] However, conventional mechanical box-turning machines, as key equipment in casting production lines, still have the following technical problems:

[0005] 1. The support components of the mechanical sand box flipping machine are fixed, so when the sand box is hoisted, it will collide with the support and cause damage; and the fixed support components can only achieve the flipping of a single size sand box.

[0006] 2. The sand box on the mechanical sand box turning machine is clamped by a centering clamp to prevent the sand box from moving axially during the turning process; and when clamping, the upper hinge needs to be opened, and after the sand box is in place, the upper hinge needs to be closed and fixed. The operation of the centering clamp is complicated.

[0007] 3. The sand box on the mechanical box-turning machine is fixed by a hydraulic / pneumatic support unit, which is used to close the mold and discharge sand to prevent it from moving. High-temperature casting sand is prone to damage to the outer wall of the stroke end of the hydraulic / pneumatic support unit, which can cause liquid or air leakage. Utility Model Content

[0008] To address the technical problems existing in the background art, this utility model provides a hydraulic sand box tilting machine for V-process casting, which avoids collision with the hoisted sand box and is suitable for sand boxes of various sizes; the snap-fit ​​structure prevents axial displacement of the sand box and is easy to operate; the fixing components of the sand box are affected by the high temperature of the casting sand.

[0009] The technical solution adopted by this utility model is:

[0010] A hydraulic sand box turning machine for V-process casting includes: a sand box; roller assemblies supporting the left and right ends of the sand box; the left roller assembly is fixedly mounted on a folding bracket, which is driven by a folding cylinder and rotated by the folding cylinder; the right roller assembly is fixedly mounted on a translation bracket, which is driven by a translation cylinder at the stroke end and translated by the translation cylinder; a turning cylinder coaxially rotatably connected to the sand box is fixedly mounted on the translation bracket, and the rotation center line of the turning cylinder and the rotation center line of the folding cylinder are spatially staggered and perpendicular; a pressing mechanism for pressing the sand box is fixedly mounted on the folding bracket and the translation bracket.

[0011] Furthermore, the sand box has extension shafts extending from its left and right ends, and a concave snap-fit ​​shaft is coaxially provided in the middle of the extension shaft. A connecting shaft extends coaxially from the right end of the extension shaft. Lugs protrude from the side wall of the sand box and are pressed by a pressing mechanism.

[0012] Furthermore, eight lugs are provided, and each lug is located at one of the eight vertices of the sand box.

[0013] Furthermore, a roller base is fixedly installed on the folding bracket and the translation bracket respectively;

[0014] Bearing assemblies are coaxially arranged at the left and right ends of the roller assembly axis. An installation shaft is provided inside the bearing assembly. The installation shaft passes through and is inserted into the roller base. A retaining seat is provided at the left and right ends of the installation shaft, which abuts against the outer wall of the roller base.

[0015] Furthermore, the roller assembly is configured as two rollers arranged side by side at the same height in the front-to-back direction, and the locking shaft is rotated and locked between the two rollers.

[0016] Furthermore, the center line of the mounting shaft is set parallel to the center line of the tilting cylinder.

[0017] Furthermore, a bracket connecting seat is provided at the lower end of the folding bracket.

[0018] Furthermore, a folding base is fixedly connected to the folding cylinder below it, and a rotating shaft seat is fixedly installed on the folding base. Multiple sets of rotating shaft seats are arranged side by side in the left-right direction for passing through the folding rotating shaft of the folding cylinder. The folding rotating shaft is coaxially and fixedly connected to the bracket connecting seat.

[0019] Furthermore, a translation base is provided below the translation bracket and slidably connected thereto. A translation pusher is provided at the lower part of the translation bracket. A connecting rod is provided through and fixedly mounted on the translation pusher. A translation cylinder is coaxially fixed to the end of the connecting rod and fixed to the translation base.

[0020] Furthermore, the pressing mechanism includes:

[0021] A pressure cylinder is fixedly connected to a folding bracket and a translation bracket. The stroke end of the pressure cylinder is set upward and is hinged with a first connecting arm and a second connecting arm. A main connecting arm is hinged to the folding bracket and the translation bracket. The end of the first connecting arm is hinged to the middle of the main connecting arm. A pressure plate is hinged to the end of the second connecting arm and the end of the main connecting arm. A pressure head that presses against a lug is provided at the lower part of the end of the pressure plate.

[0022] The beneficial effects of this utility model of a hydraulic box-turning machine for V-process casting are as follows:

[0023] 1. The folding support on one side prevents collisions during sand box hoisting; the sliding support on the other side is suitable for placing and flipping sand boxes of various sizes.

[0024] 2. The snap-fit ​​structure prevents the sand box from moving axially along its axis of rotation, and the operation is simple;

[0025] 3. The sand box is fixed by the pressure box mechanism and will not be affected by the high temperature of the casting sand. Attached Figure Description

[0026] Figure 1 This is a schematic diagram of the overall front view of an embodiment of this utility model;

[0027] Figure 2 This is a schematic diagram of the main view of the sand box in this utility model embodiment;

[0028] Figure 3 This is an example of the utility model. Figure 1 A magnified view of part A in the middle;

[0029] Figure 4 This is a side view of the folding bracket of this utility model embodiment;

[0030] Figure 5 This is an example of the utility model. Figure 1 A magnified view of part B in the middle section;

[0031] Figure 6 This is an enlarged schematic diagram of the retracted state of the pressing mechanism in this utility model embodiment.

[0032] In the picture:

[0033] 10. Sand box; 11. Extension shaft; 12. Snap-fit ​​shaft; 13. Connecting shaft; 14. Lug.

[0034] 20. Roller assembly; 21. Bearing assembly; 22. Mounting shaft; 23. Shaft retainer; 24. Roller base.

[0035] 30. Folding bracket; 31. Bracket with base;

[0036] 40. Folding cylinder; 41. Folding base; 42. Folding shaft; 43. Shaft seat.

[0037] 50. Translation bracket, 51. Translation base, 52. Translation pusher, 53. Connecting rod, 54. Translation cylinder

[0038] 60. Flip-top tank,

[0039] 7. Pressing mechanism,

[0040] 70. Pressure chamber cylinder; 71. First connecting arm; 72. Second connecting arm; 73. Main connecting arm; 74. Pressure plate; 75. Pressure head. Detailed Implementation

[0041] To more clearly and explicitly illustrate the specific implementation objectives and methods of this utility model, the technical solution of this utility model will be fully described below. The described embodiments are only some embodiments of this utility model, not all embodiments. Without creative effort, all other embodiments based on the described embodiments of this utility model are within the protection scope of this utility model.

[0042] This utility model relates to a hydraulic box-turning machine for V-process casting, such as... Figure 1 As shown, it includes: sand box 10 and control mechanism.

[0043] The sand box 10 has extension shafts 11 extending from its left and right ends respectively. A concave snap-fit ​​shaft 12 is coaxially provided in the middle of the extension shaft 11. A connecting shaft 13 extends coaxially from the right end of the extension shaft 11. Lugs 14 protrude from the side wall of the sand box 10. There are eight lugs 14, which are respectively provided at the eight vertices of the sand box 10.

[0044] The sand box 10 is supported by roller assemblies 20 at its left and right ends. Each roller assembly 20 consists of two rollers arranged side by side at the same height in the front-to-back direction, with the locking shaft 12 rotatably locking between the two rollers. A roller base 24 is provided below the roller assembly 20. Bearing assemblies 21 are coaxially arranged at the left and right ends of the roller axis of the roller assembly 20. An installation shaft 22 is provided inside the bearing assembly 21. The installation shaft 22 passes through and is inserted into the roller base 24. A locking shaft seat 23 is provided at the left and right ends of the installation shaft 22, which abuts against the outer wall of the roller base 24.

[0045] A folding bracket 30 is provided below the left support roller assembly 20. The support roller base 24 of the left support roller assembly 20 is fixedly installed on the folding bracket 30. A bracket connecting seat 31 is provided at the lower end of the folding bracket 30.

[0046] The lower end of the folding bracket 30 is provided with a folding base 41, and a rotating shaft seat 43 is fixedly provided on the folding base 41. Multiple sets of rotating shaft seats 43 are arranged side by side in the left and right direction for passing through the folding rotating shaft 42 of the folding cylinder 40. The folding rotating shaft 42 is coaxially and fixedly connected to the bracket connecting seat 31, and the folding bracket 30 is driven to rotate by the folding cylinder 40.

[0047] A translation bracket 50 is provided below the right-side support roller assembly 20. The support roller base 24 of the right-side support roller assembly 20 is fixedly mounted on the translation bracket 50. A translation base 51 is provided below the translation bracket 50 and is slidably connected to it. A translation push seat 52 is provided at the lower part of the translation bracket 50. A connecting rod 53 is provided through and fixedly mounted on the translation push seat 52. A translation cylinder 54 is coaxially fixed to the end of the connecting rod 53 and fixed to the translation base 51. The translation cylinder 54 drives the translation bracket 50 to translate.

[0048] A box-flipping cylinder 60 is fixedly mounted on the translation bracket 50 and is rotatably connected to the connecting shaft 13. The rotation center line of the box-flipping cylinder 60 is spatially staggered and perpendicular to the rotation center line of the folding cylinder 40. The center line of the mounting shaft 22 is parallel to the center line of the box-flipping cylinder 60.

[0049] A pressing mechanism 7, comprising a pressing sand box 10, is fixedly installed on the folding bracket 30 and the translation bracket 50, including:

[0050] A pressure cylinder 70 is fixedly connected to the folding bracket 30 and the translation bracket 50. The stroke end of the pressure cylinder 70 is set upward and is hinged with a first connecting arm 71 and a second connecting arm 72. A main connecting arm 73 is hinged to the folding bracket 30 and the translation bracket 50. The end of the first connecting arm 71 is hinged to the middle of the main connecting arm 73. The ends of the second connecting arm 72 and the main connecting arm 73 are hinged with a pressure plate 74. The lower part of the end of the pressure plate 74 is provided with a pressure head 75 that presses against the lug 14.

[0051] The folding cylinder 40 and the box-flipping cylinder 60 are configured as rotary cylinders, the translation cylinder 54 and the box-pressing cylinder 70 are configured as stroke cylinders, and are electrically connected to the control mechanism respectively.

[0052] Based on the specific structure of the hydraulic box-turning machine for V-process casting in the above embodiments, its working process will be further explained below:

[0053] A. Hoisting:

[0054] The folding cylinder 40 drives the folding support 30 to rotate, and the folding support 30 rotates from a vertical position to a horizontal position. The sand box 10 is lifted by the lifting equipment and placed directly above the folding support 30 and the translation support 50.

[0055] The translation cylinder 54 drives the translation bracket 50 to translate, and the extension shaft 11 is placed on the support roller group 20;

[0056] The position of the translation support 50 is adjusted by the translation cylinder 54, and the locking shafts 12 on the left and right sides are locked with the support rollers 20 on the left and right sides respectively. At the same time, the tilting cylinder 60 is coaxially connected to the connecting shaft 13.

[0057] B. Fixing and closing the mold:

[0058] The pressure cylinder 70 drives the first connecting arm 71 and the second connecting arm 72 to rise. At this time, the first connecting arm 71 drives the end of the main connecting arm 73 to rotate upward, and the second connecting arm 72 limits the path trajectory of the pressure plate 74.

[0059] The pressure plate 74 first rotates at the hinge at the end of the second connecting arm 72, causing the pressure plate 74 to tilt upward with the side of the pressure head 75 facing up.

[0060] The pressure plate 74 is then rotated at the hinge at the end of the first connecting arm 71, causing the pressure head 75 of the pressure plate 74 to move downward and press against the lug 14, thereby fixing the sand box 10.

[0061] The mold box is then lifted by a crane for mold assembly.

[0062] C. Turning over the box and securing it:

[0063] The tilting cylinder 60 drives the sand box 10 to rotate, and the sand box 10 rotates 180°.

[0064] The pressure cylinder 70 drives the first connecting arm 71 and the second connecting arm 72 to rise. At this time, the first connecting arm 71 drives the end of the main connecting arm 73 to rotate upward, and the second connecting arm 72 limits the path trajectory of the pressure plate 74.

[0065] The pressure plate 74 first rotates at the hinge at the end of the second connecting arm 72, causing the pressure plate 74 to tilt upward with the side of the pressure head 75 facing up.

[0066] The pressure plate 74 is then rotated at the hinge at the end of the first connecting arm 71, causing the pressure head 75 of the pressure plate 74 to move downward and press against the lug 14, thereby fixing the sand box 10.

[0067] D. Sand casting:

[0068] The casting sand in the sand box 10 is discharged by a vibrator.

[0069] In summary, the above description is merely a preferred embodiment of this utility model and is not intended to limit the scope of this utility model. Based on the above description, those skilled in the art can make various changes and modifications without departing from the technical concept of this utility model. The technical scope of this utility model is not limited to the contents of the specification. All equivalent variations and modifications of the shape, structure, features, and spirit described in the claims of this utility model should be included within the scope of the claims of this utility model.

Claims

1. A hydraulic tilting machine for V-process casting, characterized in that: include: Sandbox (10); The sand box (10) is supported by roller sets (20) at its left and right ends; The left support roller assembly (20) is fixedly mounted on the folding bracket (30), which is driven to rotate on the folding cylinder (40). The right-side support roller assembly (20) is fixedly mounted on the translation bracket (50), which is driven by the translation cylinder (54) at the stroke end; A tilting cylinder (60) coaxially rotatably connected to the sand box (10) is fixedly installed on the translation bracket (50). The rotation center line of the tilting cylinder (60) and the rotation center line of the folding cylinder (40) are spatially staggered and perpendicularly arranged. A pressing mechanism (7) with a pressing sand box (10) is fixedly installed on the folding bracket (30) and the translation bracket (50).

2. The hydraulic tilting machine for V-process casting according to claim 1, characterized in that: The sand box (10) has extension shafts (11) extending from the left and right ends respectively. The middle of the extension shaft (11) has a concave snap-fit ​​shaft (12) coaxially arranged. The right end of the extension shaft (11) has a connecting shaft (13) extending coaxially. The side wall of the sand box (10) has a protruding lug (14) protruding from it. The lug (14) is pressed by the pressing mechanism (7).

3. The hydraulic tilting machine for V-process casting according to claim 2, characterized in that: The lugs (14) are provided in eight parts, and are respectively located at the eight vertices of the sand box (10).

4. The hydraulic tilting machine for V-process casting according to claim 2, characterized in that: The folding bracket (30) and the translation bracket (50) are respectively fixedly provided with roller bases (24); Bearing assemblies (21) are coaxially arranged at the left and right ends of the axis of the roller assembly (20). An installation shaft (22) is provided inside the bearing assembly (21). The installation shaft (22) passes through and is inserted into the roller base (24). A retaining seat (23) that abuts against the outer wall of the roller base (24) is provided at the left and right ends of the installation shaft (22).

5. The hydraulic tilting machine for V-process casting according to claim 4, characterized in that: The roller assembly (20) is configured as two rollers arranged side by side at the same height in the front-to-back direction, and the locking shaft (12) is rotated and locked between the two rollers.

6. The hydraulic tilting machine for V-process casting according to claim 4 or 5, characterized in that: The centerline of the mounting shaft (22) is set parallel to the centerline of the tilting cylinder (60).

7. The hydraulic tilting machine for V-process casting according to claim 5, characterized in that: The lower end of the folding bracket (30) is provided with a bracket connecting seat (31).

8. The hydraulic tilting machine for V-process casting according to claim 7, characterized in that: Below the folding cylinder (40) is a folding base (41) fixedly connected to it. A rotating shaft seat (43) is fixedly installed on the folding base (41). Multiple sets of rotating shaft seats (43) are arranged side by side in the left and right direction for passing through the folding rotating shaft (42) of the folding cylinder (40). The folding rotating shaft (42) is coaxially fixedly connected to the bracket connecting seat (31).

9. The hydraulic tilting machine for V-process casting according to claim 8, characterized in that: The translation bracket (50) is provided with a translation base (51) slidably connected to it below, and a translation push seat (52) is provided at the lower part of the translation bracket (50). A connecting rod (53) is provided through and fixed on the translation push seat (52), and a translation cylinder (54) fixed on the translation base (51) is coaxially fixed at the end of the connecting rod (53).

10. The hydraulic tilting machine for V-process casting according to claim 9, characterized in that: The pressing mechanism (7) includes: A pressure cylinder (70) is fixedly connected to the folding bracket (30) and the translation bracket (50). The stroke end of the pressure cylinder (70) is set upward and is hinged with a first connecting arm (71) and a second connecting arm (72). A main connecting arm (73) is hinged to the folding bracket (30) and the translation bracket (50). The end of the first connecting arm (71) is hinged to the middle of the main connecting arm (73). The ends of the second connecting arm (72) and the main connecting arm (73) are hinged with a pressure plate (74). The lower part of the end of the pressure plate (74) is provided with a pressure head (75) that presses against the lug (14).

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