A core mold hanger

Abstract

The utility model relates to a lifting appliance technical field more specifically, relate to a core mould lifting appliance, include: main body frame, with the compression assembly of main body frame connection, adjustable installation is in the lifting ring of main body frame, be equipped with the profile support surface on main body frame, and compression assembly is used for the work piece compression fixed on the profile support surface, set up the profile support surface on main body frame, promote the degree of adhesion of work piece and main body frame, reduce the risk of shaking, set up compression assembly and press tightly to work piece, to fix work piece, further avoid work piece shaking, on this basis, set up adjustable installation's lifting ring again, the lifting ring can be installed in proper position according to the barycentric position of different work piece, so that the present lifting appliance when hoisting work piece, the lifting ring can be in the vertical line of work piece barycentric position, to avoid work piece inclination and shaking fully.

Description

Technical Field

[0001] This utility model relates to the field of lifting equipment technology, and more specifically, to a core mold lifting equipment. Background Technology

[0002] In existing pipe manufacturing processes, the core mold assembly stage presents numerous problems. Core molds are heavy and generally require lifting equipment. Currently, ordinary hooks are commonly used for lifting core molds. However, due to the structural characteristics of the core mold, its center of gravity shifts when lifted, making it prone to tilting when lifted with ordinary hooks. This makes precise positioning and installation difficult during subsequent assembly. Furthermore, when the core mold is moved by a crane, it is prone to swaying from side to side. This not only significantly reduces the efficiency of core mold installation but also poses serious safety hazards, potentially causing injury to operators and damage to the core mold and other equipment. Utility Model Content

[0003] This invention addresses the shortcomings of existing technologies where ordinary hooks are used to lift and move core molds, which can easily cause tilting and swaying, posing significant safety hazards. It provides a core mold lifting device that prevents tilting and swaying during core mold lifting and movement, thereby improving operational safety.

[0004] To solve the above-mentioned technical problems, the technical solution adopted by this utility model is: a core mold lifting tool, including: a main frame, a clamping component connected to the main frame, and a lifting ring adjustablely installed on the main frame. The main frame is provided with a contour support surface, and the clamping component is used to press and fix the workpiece on the contour support surface.

[0005] In this lifting device, the main frame is the primary structure bearing the weight of the workpiece. The main frame is equipped with contoured support surfaces, the surface of which is determined by the workpiece to be lifted. Similar or identical support surfaces are used depending on the lifting position to ensure lifting stability. Specific workpieces that can be lifted include, but are not limited to, core molds for pipe molds. Lifting rings are used to connect to external lifting equipment and are directly or indirectly installed on the main frame. The installation position of the lifting rings is adjustable; multiple holes can be provided for installation, or they can be slidably connected to the main frame and tightened with screws and nuts, etc. The installation method is not unique. During lifting, the workpiece hangs naturally under the influence of gravity. The lifting ring is connected to the lifting equipment. When the installation position of the lifting ring is not on the same vertical line as the center of gravity of the workpiece, the workpiece is prone to tilting and swaying during the movement. After setting the lifting ring to be adjustable, the position of the lifting ring can be adjusted according to the center of gravity of different workpieces being lifted, so that when the workpiece is lifted, the lifting ring can be on the same vertical line as the center of gravity of the workpiece, avoiding tilting or swaying of the workpiece and improving operational safety. The clamping component is used to clamp and fix the workpiece on the contour support surface, further improving the stability of the workpiece during movement. The clamping component can be tightened by wire or chain, clamps or cylinders, etc., and the setting method is not unique.

[0006] Preferably, the clamping assembly includes a pressure rod rotatably connected to the main frame and a fastening assembly connected to the pressure rod, the fastening assembly being used to fix the pressure rod to the main frame.

[0007] The pressure bar is rotatably connected to the main frame. Before hoisting, the pressure bar is rotated open. After hoisting, the pressure bar is rotated to press the workpiece. The fastening assembly is used to fix the pressure bar and keep it clamping pressure. The fastening assembly can be equipped with screws at the rotation position of the pressure bar. The screws are used in conjunction with the pressure plate or washer to tighten and fix the pressure bar. Other fastening methods can also be used.

[0008] Preferably, the fastening assembly includes a pull rod rotatably connected to the main frame, a drive gear connected to the pull rod, and a driven gear fixedly connected to the pressure rod. The drive gear and the driven gear mesh with each other. The pull rod drives the drive gear to rotate, which in turn drives the driven gear and the pressure rod to rotate. The lifting ring is rotatably connected to the pull rod.

[0009] One end of the pull rod is connected to the lifting ring, which can rotate relative to the pull rod for easy use. The other end of the pull rod is rotatably connected to the main frame. A drive gear is fixedly installed at the rotation position of the pull rod. When the pull rod rotates, the drive gear also rotates. The rotation axis of the drive gear is the same as that of the pull rod. Similarly, a driven gear is fixedly installed at the rotation position of the pressure rod. The rotation axis of the driven gear is the same as that of the pressure rod, and the drive gear and driven gear mesh with each other. Thus, when the pull rod is rotated, it can directly or indirectly drive the drive gear and driven gear in sequence. The gears and pressure rods rotate, allowing the pressure rod to clamp the workpiece. Specifically, during use, the workpiece is pre-clamped by rotating the pull rod, and then the lifting ring is connected to the lifting equipment. When the lifting equipment lifts the lifting ring, the pull rod continues to rotate relative to the main frame under the weight of the workpiece, allowing the pressure rod to continuously apply clamping force to the workpiece. The heavier the workpiece, the better the clamping effect. Furthermore, the pressure rod is easier to rotate and loosen when lowering the workpiece, which facilitates lifting and improves the stability of workpiece movement.

[0010] Preferably, the assembly also includes a first mounting screw threaded to the lifting ring, and the pull rod has at least two first mounting holes, with the lifting ring mounted on the first mounting holes via the first mounting screw.

[0011] At least two first mounting holes are provided to offer different mounting positions for the lifting ring, thereby enabling adjustable installation of the lifting ring. During installation, the first mounting screw passes through one side of the lifting ring, the first mounting hole, and the other side of the lifting ring in sequence. The first mounting screw is selected as a screw with high load-bearing capacity.

[0012] Preferably, the clamping assembly further includes an adjustable block mounted on the pressure rod, the adjustable block being used to clamp and fix the workpiece on the contour support surface.

[0013] The pressure bar is equipped with an adjustable block that rotates with the pressure bar. By setting the adjustable block, the clamping or tightening position of the pressure bar can be adjusted to meet the hoisting requirements of workpieces of different models and thicknesses.

[0014] Preferably, the clamping assembly further includes a second mounting screw, the pressure rod is provided with a sliding groove, the adjusting block is slidably connected to the pressure rod through the sliding groove, the sliding groove is provided with at least two second mounting holes, and the second mounting screw passes through the adjusting block and connects to the second mounting holes.

[0015] At least two second mounting holes are provided to provide different mounting positions for the second mounting screw, thereby enabling the adjustable installation of the adjusting block. The second mounting holes can be through holes or threaded holes. When they are through holes, a nut is connected to the second mounting screw. When they are threaded holes, the second mounting screw is directly connected to the threaded hole.

[0016] Preferably, the clamping assembly further includes a pressure block mounted on the adjusting block, the pressure block having a contoured contact surface for contacting the workpiece.

[0017] The pressure block is used to directly contact the workpiece. The pressure block is equipped with a corresponding contoured contact surface according to the shape of the workpiece surface to improve the clamping effect. When hoisting different workpieces, the pressure block with the corresponding contoured contact surface can also be replaced to fully adapt to the hoisting of different workpieces.

[0018] Preferably, the clamping assembly further includes a third mounting screw, and the clamping block is mounted on the adjusting block by the third mounting screw.

[0019] A third mounting screw is provided for installing the pressure block. The third mounting screw passes through the pressure block and is threadedly connected to the adjusting block, thereby enabling the adjusting block to be installed detachably and facilitating the replacement of the pressure block.

[0020] Preferably, it also includes a fixing screw, and the main frame is provided with a connecting hole, the fixing screw being used to pass through the connecting hole and be threadedly connected to the workpiece.

[0021] Setting fixing screws is used to further improve the fixing effect on the workpiece. The fixing screws pass through the connecting hole and are threaded to the workpiece. For the core mold of the pipe mold, there is a threaded hole at its lifting position. When lifting it, first screw the fixing screw into the threaded hole of the core mold to initially fix the core mold, and then use the clamping component to pre-tighten it, and then lift the core mold to fully avoid the core mold from tilting or swinging.

[0022] Preferably, the connecting hole is an elongated hole.

[0023] The connecting hole is designed as an elongated hole, which allows for adjustment of the through-screw position to accommodate the locking of more core molds.

[0024] Compared with the prior art, the beneficial effects of this utility model are:

[0025] A contoured support surface is set on the main frame to improve the fit between the workpiece and the main frame and reduce the risk of swaying. A clamping component is set to clamp the workpiece to fix it and further prevent the workpiece from swaying. On this basis, an adjustable lifting ring is set. The lifting ring can be installed in an appropriate position according to the center of gravity of different workpieces, so that when the lifting device lifts the workpiece, the lifting ring can be on the vertical line of the center of gravity of the workpiece, so as to fully prevent the workpiece from tilting and swaying. Attached Figure Description

[0026] Figure 1 This is a schematic diagram of the overall structure of a core mold lifting tool according to this utility model;

[0027] Figure 2 This is a schematic diagram of the clamping state of a core mold lifting tool according to this utility model;

[0028] Figure 3 This is a schematic diagram of the released state of a core mold lifting tool according to this utility model.

[0029] In the diagram: 1. Main frame; 2. Clamping assembly; 3. Lifting ring; 4. Contour support surface; 5. Pressure rod; 6. Tie rod; 7. Drive gear; 8. Driven gear; 9. First mounting screw; 10. First mounting hole; 11. Adjusting block; 12. Second mounting screw; 13. Slide groove; 14. Second mounting hole; 15. Pressure block; 16. Contour contact surface; 17. Third mounting screw; 18. Fixing screw; 19. Connecting hole. Detailed Implementation

[0030] The accompanying drawings are for illustrative purposes only and should not be construed as limiting this patent. To better illustrate this embodiment, some components in the drawings may be omitted, enlarged, or reduced, and do not represent the actual dimensions of the product. It is understandable to those skilled in the art that some well-known structures and their descriptions may be omitted in the drawings. The positional relationships described in the drawings are for illustrative purposes only and should not be construed as limiting this patent.

[0031] In the accompanying drawings of this utility model, the same or similar reference numerals correspond to the same or similar components. In the description of this utility model, it should be understood that if terms such as "upper," "lower," "left," "right," "long," and "short" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, they are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or component referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, the terms used to describe positional relationships in the drawings are only for illustrative purposes and should not be construed as limiting this patent. For those skilled in the art, the specific meaning of the above terms can be understood according to the specific circumstances.

[0032] The technical solution of this utility model will be further described in detail below through specific embodiments and with reference to the accompanying drawings:

[0033] Example 1

[0034] like Figure 1 As shown, a core mold lifting tool includes: a main frame 1, a clamping assembly 2 connected to the main frame 1, and an adjustable lifting ring 3 mounted on the main frame 1. The main frame 1 is provided with a contour support surface 4, and the clamping assembly 2 is used to clamp and fix the workpiece on the contour support surface 4.

[0035] In this lifting device, the main frame 1 is the primary structure bearing the weight of the workpiece. The main frame 1 is equipped with a contour support surface 4, the surface of which is determined by the workpiece to be lifted. Similar or identical support surfaces are used depending on the lifting position to ensure lifting stability. Specific workpieces that can be lifted include, but are not limited to, core molds for pipe molds. The lifting ring 3 is used to connect to external lifting equipment and is directly or indirectly installed on the main frame 1. The installation position of the lifting ring 3 is adjustable; it can be installed using multiple holes or slidably connected to the main frame 1 and tightened with screws and nuts, etc. The installation method is not unique. During lifting, the workpiece hangs naturally under the influence of gravity. The lifting ring 3 is connected to the lifting equipment. When the installation position of the lifting ring 3 is not on the same vertical line as the center of gravity of the workpiece, the workpiece is prone to tilting and swaying during the movement. After the lifting ring 3 is set to be adjustable, the position of the lifting ring 3 can be adjusted according to the center of gravity of different workpieces being lifted, so that when the workpiece is lifted, the lifting ring 3 can be on the same vertical line as the center of gravity of the workpiece, avoiding tilting or swaying of the workpiece and improving operational safety. The clamping component 2 is used to clamp and fix the workpiece on the contour support surface 4, further improving the stability of the workpiece during movement. The clamping component 2 can be tightened by wire or chain, clamps or cylinders, etc., and the setting method is not unique.

[0036] The beneficial effects of this embodiment are as follows: A contour support surface 4 is provided on the main frame 1 to improve the fit between the workpiece and the main frame 1 and reduce the risk of shaking. A clamping component 2 is provided to clamp the workpiece to fix it and further prevent the workpiece from shaking. On this basis, an adjustable lifting ring 3 is provided. The lifting ring 3 can be installed in an appropriate position according to the center of gravity of different workpieces, so that when the lifting device lifts the workpiece, the lifting ring 3 can be on the vertical line of the center of gravity of the workpiece to fully prevent the workpiece from tilting and shaking.

[0037] Example 2

[0038] This embodiment further defines the features of Embodiment 1, and its difference from Embodiment 1 lies in:

[0039] like Figure 1-3As shown, the clamping assembly 2 includes a pressure rod 5 rotatably connected to the main frame 1 and a fastening assembly connected to the pressure rod 5. The fastening assembly is used to fix the pressure rod 5 to the main frame 1. The fastening assembly includes a pull rod 6 rotatably connected to the main frame 1, a driving gear 7 connected to the pull rod 6, and a driven gear 8 fixedly connected to the pressure rod 5. The driving gear 7 and the driven gear 8 mesh with each other. The pull rod 6 drives the driving gear 7 to rotate, which in turn drives the driven gear 8 and the pressure rod 5 to rotate. The lifting ring 3 is rotatably connected to the pull rod 6. It also includes a first mounting screw 9 threadedly connected to the lifting ring 3. The pull rod 6 has at least two first mounting holes 10, and the lifting ring 3 is mounted on the first mounting holes 10 by the first mounting screw 9. The clamping assembly 2 also includes an adjustable block 11 that is adjustablely mounted on the pressure rod 5. The adjustable block 11 is used to clamp and fix the workpiece on the contour support surface 4. The clamping assembly 2 also includes a second mounting screw 12. The pressure rod 5 has a sliding groove 13, and the adjusting block 11 is slidably connected to the pressure rod 5 via the sliding groove 13. The sliding groove 13 has at least two second mounting holes 14, and the second mounting screw 12 passes through the adjusting block 11 and connects to the second mounting holes 14. The clamping assembly 2 also includes a pressure block 15 mounted on the adjusting block 11, and the pressure block 15 has a contoured abutment surface 16 for abutting against the workpiece. The clamping assembly 2 also includes a third mounting screw 17, and the pressure block 15 is mounted on the adjusting block 11 via the third mounting screw 17.

[0040] The pressure rod 5 is rotatably connected to the main frame 1. Before hoisting, the pressure rod 5 is rotated open; after hoisting, the pressure rod 5 is rotated to press the workpiece. The fastening assembly is used to fix the pressure rod 5, maintaining the clamping pressure. Screws can be installed at the rotation position of the pressure rod 5, and the pressure rod 5 can be tightened using screws, pressure plates, or washers. Other fastening methods can also be used. One end of the pull rod 6 is connected to the lifting ring 3, which can rotate relative to the pull rod 6 for ease of use. The other end of the pull rod 6 is rotatably connected to the main frame 1. A drive gear 7 is fixedly installed at the rotation position of the pull rod 6. When the pull rod 6 rotates, the drive gear 7 also rotates. The rotation axis of the drive gear 7 is the same as that of the pull rod 6. Similarly, a driven gear 8 is fixedly installed at the rotation position of the pressure rod 5. The rotation axis of the driven gear 8 is the same as that of the pressure rod 5, and the drive gear 7 and driven gear 8 mesh with each other. Therefore, when the pull rod 6 is rotated, the drive gear can be driven directly or indirectly in sequence. 7. The driven gear 8 and the pressure rod 5 rotate, allowing the pressure rod 5 to clamp the workpiece. Specifically, during use, the pressure rod 5 can be rotated by rotating the pull rod 6 to pre-clamp the workpiece. Then, the lifting ring 3 is connected to the lifting equipment. When the lifting equipment lifts the lifting ring 3, the pull rod 6 will continue to rotate relative to the main frame 1 under the action of the workpiece's gravity, allowing the pressure rod 5 to continuously apply clamping force to the workpiece. The heavier the workpiece, the better the clamping effect. Furthermore, when lowering the workpiece, the pressure rod 5 is also easier to rotate and loosen, which facilitates lifting and improves the stability of workpiece movement. At least two first mounting holes 10 are provided to offer different installation positions for the lifting ring 3, thereby achieving adjustable installation of the lifting ring 3. During installation, the first mounting screw 9 passes through one side of the lifting ring 3, the first mounting hole 10, and the other side of the lifting ring 3 in sequence. The first mounting screw 9 is a screw with high load-bearing capacity. An adjustable block 11 is mounted on the pressure rod 5. The adjustable block 11 rotates with the pressure rod 5. By setting the adjustable block 11, the clamping or tightening position of the pressure rod 5 can be adjusted to meet the lifting requirements of workpieces of different models and thicknesses. At least two second mounting holes 14 are provided to provide different installation positions for the second mounting screws 12, thereby realizing the adjustable installation of the adjustable block 11. The second mounting holes 14 can be through holes or threaded holes. When it is a through hole, a nut is connected to the second mounting screw 12. When it is a threaded hole, the second mounting screw 12 is directly connected to the threaded hole. The pressure block 15 is used to directly abut against the workpiece. The pressure block 15 is provided with a corresponding contoured abutment surface 16 according to the surface shape of the workpiece to improve the clamping effect. When lifting different workpieces, the pressure block 15 with the specific contoured abutment surface 16 can also be replaced to fully adapt to the lifting of different workpieces. A third mounting screw 17 is provided for installing the pressure block 15. The third mounting screw 17 passes through the pressure block 15 and is threadedly connected to the adjusting block 11, thereby enabling the adjustment block 11 to be detached and installed, and also facilitating the replacement of the pressure block 15.

[0041] The remaining features and working principles of this embodiment are the same as those of Embodiment 1.

[0042] Example 3

[0043] Based on Example 1 or Example 2, Example 1 or Example 2 are further defined, with the following differences:

[0044] like Figure 1-3 As shown, it also includes a fixing screw 18, and the main frame 1 is provided with a connecting hole 19. The fixing screw 18 is used to pass through the connecting hole 19 and be threaded to the workpiece. The connecting hole 19 is an elongated hole.

[0045] The fixing screw 18 is provided to further improve the fixation effect on the workpiece. The fixing screw 18 passes through the connecting hole 19 and is threadedly connected to the workpiece. For the core mold of the pipe mold, the lifting position is provided with a threaded hole. When lifting it, the fixing screw 18 is first screwed into the threaded hole of the core mold to initially fix the core mold. Then, the clamping component 2 is used for pre-tightening, and then the core mold is lifted to fully prevent the core mold from tilting or swinging. The connecting hole 19 is set as an elongated hole, so that the passing position of the fixing screw 18 can be adjusted to accommodate the locking of more core molds.

[0046] The remaining working principles and processes of this embodiment are the same as those of Embodiment 1 or Embodiment 2.

[0047] In the specific implementation of the above embodiments, the technical features can be combined in any non-contradictory way. For the sake of brevity, not all possible combinations of the above technical features are described. However, as long as the combination of these technical features is not contradictory, it should be considered to be within the scope of this specification.

[0048] Obviously, the above embodiments of this utility model are merely examples for clearly illustrating this utility model, and are not intended to limit the implementation of this utility model. Those skilled in the art can make other variations or modifications based on the above description. It is neither necessary nor possible to exhaustively describe all embodiments here. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this utility model should be included within the protection scope of the claims of this utility model.

Claims

1. A core mold lifting tool, characterized in that, include: The main frame (1), the clamping assembly (2) connected to the main frame (1), and the lifting ring (3) adjustablely installed on the main frame (1) are provided with a contour support surface (4). The clamping assembly (2) is used to press and fix the workpiece on the contour support surface (4).

2. The core mold lifting tool according to claim 1, characterized in that: The clamping assembly (2) includes a pressure rod (5) rotatably connected to the main frame (1) and a fastening assembly connected to the pressure rod (5). The fastening assembly is used to fix the pressure rod (5) on the main frame (1).

3. A core mold lifting tool according to claim 2, characterized in that: The fastening assembly includes a pull rod (6) rotatably connected to the main frame (1), a drive gear (7) connected to the pull rod (6), and a driven gear (8) fixedly connected to the pressure rod (5). The drive gear (7) and the driven gear (8) mesh with each other. The pull rod (6) drives the drive gear (7) to rotate, thereby driving the driven gear (8) and the pressure rod (5) to rotate. The lifting ring (3) is rotatably connected to the pull rod (6).

4. A core mold lifting tool according to claim 3, characterized in that: It also includes a first mounting screw (9) that is threaded to the lifting ring (3), and the pull rod (6) is provided with at least two first mounting holes (10), and the lifting ring (3) is mounted on the first mounting holes (10) by the first mounting screw (9).

5. A core mold lifting tool according to claim 4, characterized in that: The clamping assembly (2) also includes an adjustable block (11) that is adjustablely mounted on the pressure rod (5), the adjustable block (11) being used to clamp and fix the workpiece on the contour support surface (4).

6. A core mold lifting tool according to claim 5, characterized in that: The clamping assembly (2) also includes a second mounting screw (12), the pressure rod (5) is provided with a sliding groove (13), the adjusting block (11) is slidably connected to the pressure rod (5) through the sliding groove (13), the sliding groove (13) is provided with at least two second mounting holes (14), and the second mounting screw (12) passes through the adjusting block (11) and connects to the second mounting holes (14).

7. A core mold lifting tool according to claim 5, characterized in that: The clamping assembly (2) further includes a pressure block (15) mounted on the adjusting block (11), the pressure block (15) having a contoured contact surface (16) for contacting the workpiece.

8. A core mold lifting tool according to claim 7, characterized in that: The clamping assembly (2) also includes a third mounting screw (17), and the clamping block (15) is mounted on the adjusting block (11) by the third mounting screw (17).

9. A core mold lifting device according to any one of claims 1-8, characterized in that: It also includes a fixing screw (18), and the main frame (1) is provided with a connecting hole (19). The fixing screw (18) is used to pass through the connecting hole (19) and be threaded to the workpiece.

10. A core mold lifting tool according to claim 9, characterized in that: The connecting hole (19) is an elongated hole.

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