Floating box closing device for box molding line

Abstract

The utility model discloses a floating box closing device for a box molding line, and relates to the technical field of pouring tools, the floating box closing device comprises a box closing mechanism, an upper box, a lower box and a conversion device, the upper box and the lower box alternately advance along the leading-in end of the box closing mechanism through a conveying line, the leading-out end of the box closing mechanism is connected with the conversion device, and a positioning device which acts on the upper box in a lateral locking mode is arranged on a box closing frame. The box closing device has the technical advantages that the floating guide part and the clamping lifting part are movably connected to the lower portion of the box closing frame, and the lifting tail end of the clamping lifting part is movably connected to the clamping assembly, so that the floating guide part and the clamping assembly both have the circumferential swing effect; furthermore, in the closing process of the upper box and the lower box, the wrong shape phenomenon can be prevented by means of active guiding of the box closing pin; the second guide rod is in a conical shape with the thin upper portion and the thick lower portion, and when an air arm of the first lifting oil cylinder ascends, circumferential swing of the clamping assembly can be limited by means of the clamping effect of the second guide rod and the second guide sleeve.

Description

Technical Field

[0001] This application relates to the field of casting tooling technology, and in particular to a floating box closing device for a box molding line. Background Technology

[0002] In static pressure molding production lines, the mold-closing device occupies a crucial position in the core process, and its performance plays a decisive role in the sand mold forming accuracy, casting quality, and production efficiency. As a key piece of equipment for achieving precise alignment and pressing of the upper and lower sand molds (or sand boxes), the mold-closing device plays a vital role in the entire casting process. The currently used mold-closing mechanism operates by gripping the upper mold with claws, while the lower mold works in conjunction with a trolley to move to a position below the upper mold. Subsequently, the upper mold slowly descends, completing the precise mold-closing action with the lower mold. It is important to note that both the upper and lower molds contain pre-placed sand molds. After successful mold-closing, they form a complete and integrated sand mold, which is then transported to the next station for molten iron pouring.

[0003] However, currently, a rigid connection is used between the upper mold box and the mold closing mechanism. During the equipment commissioning phase, to ensure ideal mold closing accuracy, the mold closing mechanism and the lower conversion mechanism must meet the stringent requirement of absolute concentricity. However, with prolonged operation and frequent use, inaccurate positioning of the conversion mechanism is inevitable. Once such a problem occurs, misalignment of the upper and lower mold boxes is highly likely during the mold closing process, and the sand mold will suffer varying degrees of wear. In the subsequent molten iron pouring process, these problems will directly lead to the generation of scrap, negatively impacting production quality and economic benefits. Summary of the Invention

[0004] This device provides a floating box-closing device for a box-forming line, the specific implementation of which is as follows:

[0005] A floating box-closing device with a box-forming line includes:

[0006] Box closing mechanism;

[0007] The upper and lower boxes, which move alternately along the conveyor line from the inlet end of the box closing mechanism, are connected to a conversion device at the outlet end of the box closing mechanism.

[0008] The box closing mechanism includes a box closing frame. Below the box closing frame, a floating guide and a clamping lifting part are connected side by side in a spherical movable shape. Both the floating guide and the clamping lifting part swing in a circular shape.

[0009] The clamping lifting part includes a clamping assembly and a first telescopic structure, and the clamping assembly is connected to the box frame through the first telescopic structure;

[0010] The floating guide includes a swing table and a second telescopic structure. The second telescopic structure is integrated on the swing table. The output end of the second telescopic structure is set downward as a box-closing pin, and the bottom end is a conical box-closing pin used for floating and aligning with the upper box, and for floating and aligning with the lower box after clamping the upper box.

[0011] Based on the above technical solution, a floating guide and a clamping lifting part are movably connected below the box-closing frame. The lifting end of the clamping lifting part is movably connected to the clamping assembly, which allows both the floating guide and the clamping assembly to oscillate in a circular motion. In this way, during the closing process of the upper and lower boxes, the flexible guiding effect of the closing pin can effectively prevent misalignment.

[0012] Preferably, the box frame and the swing table are rotatably connected by a second swing rod in the form of a spherical bearing.

[0013] Preferably, the second telescopic structure includes a second lifting cylinder mounted on the swing table, and the air arm end of the second lifting cylinder is connected downward to a closing pin.

[0014] Based on the above technical solution, the cone-shaped closing pin is used to align the positioning holes of the upper and lower boxes one after the other; after the upper box is aligned, the swing table and the clamping assembly are positioned as one unit, and the entire circumferential swing relative to the lower box is achieved only by the clamping lifting part.

[0015] Preferably, the first telescopic structure includes a first lifting cylinder mounted on the box frame, with a lifting platform connected downward at the end of its arm; the lifting platform and the clamping assembly are movably connected through a plurality of first swing arm balls.

[0016] Preferably, the upper end of the first swing arm is rotatably connected to the lifting platform via a spherical bearing, and the lower end of the first swing arm is rotatably connected to the clamping assembly via a spherical bearing.

[0017] Preferably, the first telescopic structure further includes a second guide rod installed on the upper part of the clamping assembly and a second guide sleeve installed on the box frame, and the second guide rod is sleeved inside the second guide sleeve; the second guide rod is a conical structure that is thinner at the top and thicker at the bottom, and the upper part of the second guide rod is fitted with the second guide sleeve with a clearance.

[0018] Preferably, a sliding guide structure consisting of a first guide sleeve and a first guide rod is provided vertically between the box frame and the lifting platform.

[0019] Based on the above technical solution, the second guide rod is conical, tapering at the top and thickening at the bottom. When the arm of the first lifting cylinder is raised, the second guide rod engages with the second guide sleeve, thereby limiting the circumferential swing of the clamping assembly. The clamping assembly is a conventional two-way cylinder structure, which acts inward on the upper box through the clamping plates on both sides, thereby realizing the clamping operation of the upper box.

[0020] Preferably, a positioning device that provides lateral locking to the upper box is provided below the clamping assembly.

[0021] Based on the above technical solutions, the positioning device is a conventional opening and closing type of clamp, which assists the clamping component in further locking the upper box and preventing its lateral movement.

[0022] In summary, this application includes the following beneficial technical effects:

[0023] 1. In this utility model, a floating guide and a clamping lifting part are movably connected to the bottom of the box frame. The lifting end of the clamping lifting part is actively connected to the clamping assembly, so that both the floating guide and the clamping assembly have a circumferential swing effect. Thus, during the closing process of the upper and lower boxes, the active guidance of the closing pin can prevent misalignment.

[0024] 2. In this utility model, the second guide rod is a cone shape that is thinner at the top and thicker at the bottom. When the air arm of the first lifting cylinder is raised, the circumferential swing of the clamping component can be restricted by the locking effect of the second guide rod and the second guide sleeve.

[0025] 3. The present invention has a simple structure. A second lifting cylinder drives the box-closing pin on the swing table, and a second swing rod is set between the swing table and the box-closing frame to form a circumferential swing structure, so that the conical box-closing pin can automatically align with the positioning holes on the upper and lower boxes during the pressing process. Attached Figure Description

[0026] Figure 1 This is a front view structural diagram of the present invention;

[0027] Figure 2 This is a schematic diagram of the right-side structure of this utility model;

[0028] Figure 3 This is a utility model Figure 1 Enlarged view of the middle section structure;

[0029] Figure 4 This is a utility model Figure 2 Enlargement of the middle part of the structure Figure 1 ;

[0030] Figure 5 This is a utility model Figure 2 Enlargement of the middle part of the structure Figure 2 .

[0031] Explanation of reference numerals in the attached figures:

[0032] 1. Lower box; 2. Upper box; 3. Box closing frame; 4. Conversion device;

[0033] 10. Clamping lifting unit; 11. Positioning device; 12. Clamping assembly; 13. Lifting platform; 14. First swing arm; 15. First guide sleeve; 16. First guide rod; 17. First lifting cylinder; 18. Second guide rod; 19. Second guide sleeve;

[0034] 20. Floating guide; 21. Closing pin; 22. Second lifting cylinder; 23. Swinging table; 24. Second swing arm. Detailed Implementation

[0035] The specific embodiments of this utility model are described below with reference to the accompanying drawings and examples:

[0036] It should be noted that the structures, proportions, sizes, etc. shown in the accompanying drawings are only for the purpose of assisting those skilled in the art in understanding and reading the content disclosed in the specification, and are not intended to limit the conditions under which the present invention can be implemented. Any modifications to the structure, changes in the proportions, or adjustments to the size, without affecting the effects and purposes that the present invention can produce, should still fall within the scope of the technical content disclosed in the present invention.

[0037] Meanwhile, the terms such as "upper", "lower", "left", "right", "middle" and "one" used in this specification are only for clarity of description and are not intended to limit the scope of implementation of this utility model. Changes or adjustments to their relative relationships, without substantially altering the technical content, should also be considered as within the scope of implementation of this utility model.

[0038] The following is in conjunction with the appendix Figure 1-5 This application will be described in further detail.

[0039] This application discloses a floating box-closing device with a box-shaped molding line.

[0040] Example

[0041] Reference Figures 1 to 5 This embodiment discloses a floating box-forming line box-closing device, including a box-closing mechanism, an upper box 2 and a lower box 1 that alternately advance along the inlet end of the box-closing mechanism via a conveyor line, and a conversion device 4 connected to the outlet end of the box-closing mechanism. A positioning device 11 that acts laterally to lock the upper box 2 is provided below the clamping assembly 12. In this structure, the conversion device 4 is a conventional ramp structure. The conversion device 4 is arranged at a horizontal 90-degree angle with the box-closing frame 3. After the boxes are closed, the upper box 2 and the lower box 1 are transported outward along the ramp by means of a telescopic push rod-like structure.

[0042] The box closing mechanism includes a box closing frame 3. Below the box closing frame 3, a floating guide part 20 and a clamping lifting part 10 are connected side by side in a spherical movable shape. Both the floating guide part 20 and the clamping lifting part 10 swing in a circular shape. In this structure, the clamping lifting part 10 includes a clamping component 12 and a first telescopic structure. The clamping component 12 is connected to the box closing frame 3 through the first telescopic structure. The floating guide part 20 includes a swinging platform 23 and a second telescopic structure. The swinging platform 23 integrates the second telescopic structure. The output end of the second telescopic structure is set downward as a box closing pin 21. The bottom end of the box closing pin 21 is conical and is used to float and align with the upper box 2, and to float and align with the lower box 1 after clamping the upper box 2.

[0043] The box-closing frame 3 and the swing table 23 are rotatably connected by the second swing rod 24 in the form of a joint bearing. The second telescopic structure in this structure includes a second lifting cylinder 22 installed on the swing table 23. The air arm end of the second lifting cylinder 22 is connected downward to the box-closing pin 21.

[0044] The first telescopic structure includes a first lifting cylinder 17 mounted on the box-closing frame 3, with a lifting platform 13 connected downwards at the arm end. The lifting platform 13 and the clamping assembly 12 are connected spherically via several first swing rods 14. In this structure, the upper end of the first swing rod 14 is rotatably connected to the lifting platform 13 via a joint bearing, and the lower end of the first swing rod 14 is rotatably connected to the clamping assembly 12 via a joint bearing. The first telescopic structure also includes a second guide rod 18 mounted on the upper part of the clamping assembly 12 and a second guide sleeve 19 mounted on the box-closing frame 3. The second guide rod 18 is sleeved inside the second guide sleeve 19. The second guide rod 18 is a conical structure that is thinner at the top and thicker at the bottom, and the upper part of the second guide rod 18 is fitted with the second guide sleeve 19 with a clearance. A sliding guide structure consisting of a first guide sleeve 15 and a first guide rod 16 is vertically provided between the box-closing frame 3 and the lifting platform 13.

[0045] The specific implementation process is as follows: the conveyor line moves the upper box 2 to below the closing mechanism; the first lifting cylinder 17 descends, the positioning device 11 is in the open state, the swing table 23 is in the circumferential swing state, the clamping assembly 12 clamps the upper box 2, the first lifting cylinder 17 rises to lift the upper box 2, and the closing pin 21 is inserted into the positioning hole of the upper box 2 to achieve positioning; during the process of the first lifting cylinder 17 rising, the second guide rod 18 is engaged with the second guide sleeve 19 to lock the clamping assembly 12; after the upper box 2 is lifted into place, the positioning device 11 closes and fixes the upper box 2 sand box.

[0046] The conveyor line moves the lower box 1 to the lower side of the box closing mechanism. The first lifting cylinder 17 descends, and the second guide rod 18 and the second guide sleeve 19 are no longer in an interference fit. The clamping assembly 12 and the upper box 2 are in a free state. The second lifting cylinder 22 extends the box closing pin 21. The end of the box closing pin 21 passes through the positioning holes on both sides of the upper box 2 and the lower box 1, making the upper box 2 and the lower box 1 concentric. The first lifting cylinder 17 descends to close the upper box 2 and the lower box 1. The clamping assembly 12 opens, the positioning device 11 is open, and the first lifting cylinder 17 rises to disengage the clamping assembly 12 from the upper box 2. The upper box 2 and the lower box 1 on the conversion device 4 move to the next station with the conversion device 4.

[0047] Many other changes and modifications can be made without departing from the concept and scope of this utility model. It should be understood that this utility model is not limited to the specific embodiments, and the scope of this utility model is defined by the appended claims.

Claims

1. A floating box-closing device with a box-forming line, characterized in that, include: Box closing mechanism; The upper box (2) and lower box (1) that move alternately along the conveyor line from the inlet end of the box closing mechanism are connected to a conversion device (4). The box closing mechanism includes a box closing frame (3), and a floating guide part (20) and a clamping lifting part (10) are connected side by side below the box closing frame (3) in a spherical movable manner. The floating guide part (20) and the clamping lifting part (10) both swing in a circular shape. The clamping lifting part (10) includes a clamping assembly (12) and a first telescopic structure. The clamping assembly (12) is connected to the box frame (3) through the first telescopic structure. The floating guide (20) includes a swing table (23) and a second telescopic structure. The swing table (23) is integrated with the second telescopic structure. The output end of the second telescopic structure is set downward as a box-closing pin (21). The box-closing pin (21) with a conical bottom end is used to float and align with the upper box (2) and to clamp the upper box (2) and then float and align with the lower box (1).

2. The floating box closing device for a box-forming line according to claim 1, characterized in that, The box frame (3) and the swing table (23) are rotatably connected by a second swing rod (24) in the form of a spherical bearing.

3. A floating box-closing device for a box-forming line according to claim 2, characterized in that, The second telescopic structure includes a second lifting cylinder (22) installed on the swing platform (23), and the air arm end of the second lifting cylinder (22) is connected downward to the closing pin (21).

4. The floating box-closing device for a box-forming line according to claim 1, characterized in that, The first telescopic structure includes a first lifting cylinder (17) installed on the box frame (3), with a lifting platform (13) connected downward at the arm end; The lifting platform (13) and the clamping assembly (12) are connected in a ball-shaped manner by a number of first swing rods (14).

5. A floating box-closing device for a box-forming line according to claim 4, characterized in that, The upper end of the first swing arm (14) is rotatably connected to the lifting platform (13) via a spherical bearing, and the lower end of the first swing arm (14) is rotatably connected to the clamping assembly (12) via a spherical bearing.

6. A floating box-closing device for a box-forming line according to claim 4, characterized in that, The first telescopic structure also includes a second guide rod (18) installed on the upper part of the clamping assembly (12) and a second guide sleeve (19) installed on the box frame (3), wherein the second guide rod (18) is sleeved inside the second guide sleeve (19); The second guide rod (18) is a conical structure that is thinner at the top and thicker at the bottom, and the upper part of the second guide rod (18) is fitted with the second guide sleeve (19) with a clearance.

7. A floating box-closing device for a box-forming line according to claim 5, characterized in that, A sliding guide structure consisting of a first guide sleeve (15) and a first guide rod (16) is provided vertically between the box frame (3) and the lifting platform (13).

8. A floating box-closing device for a box-forming line according to claim 1, characterized in that, The clamping assembly (12) is provided with a positioning device (11) that provides lateral locking to the upper box (2).

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