Mold handling spreader

Abstract

This utility model discloses a mold handling lifting device, including a first claw rod, a second claw rod, and a support rod connected between the first and second claw rods. The support rod is slidably connected to at least one of the first and second claw rods. A lifting chain is also connected to the top of the first and second claw rods. When lifting heavy objects, the lifting chain provides an upward and inward pulling force to the first and second claw rods, driving the first and / or second claw rods to move towards each other along the support rod to clamp the mold. This not only improves the safety and stability of the lifting operation but also increases its efficiency.

Description

Technical Field

[0001] This utility model relates to the field of hoisting technology, and in particular to a mold handling hoist. Background Technology

[0002] Currently, traditional double-jaw lifting tools are commonly used in mold hoisting operations, especially in the hoisting of cylindrical mold sleeves. These double-jaw lifting tools lack both active clamping function and radial limiting structure, relying solely on two-point line contact to hook the mold sleeve. When the crane starts or stops, or when there is slight ground movement, the mold sleeve will swing in the air, and the claws can easily slip off along the curved surface. To prevent it from falling, an additional worker must be stationed on-site to hold the mold sleeve at close range, posing a significant safety hazard and resulting in low overall work efficiency. Utility Model Content

[0003] Therefore, the purpose of this utility model is to solve the technical problem of unstable lifting of the lifting device during mold lifting operations in the prior art, and to provide a mold handling lifting device that can automatically retract and clamp under the action of gravity and prevent tilting, thereby improving the safety and efficiency of the lifting operation.

[0004] To achieve the above objectives, this utility model provides a mold handling lifting device, including a first claw rod, a second claw rod, and a support rod connected between the first claw rod and the second claw rod. The support rod is slidably connected to at least one of the first claw rod and the second claw rod. The top of the first claw rod and the second claw rod are also connected to a lifting chain. When lifting heavy objects, the lifting chain provides an upward and inward pulling force to the first claw rod and the second claw rod, driving the first claw rod and / or the second claw rod to move towards each other along the support rod to clamp the mold.

[0005] Furthermore, both the bottom inner sides of the first claw bar and the second claw bar are provided with claw hooks, and the inner side of the first claw bar is also provided with baffles extending to both sides of the first claw bar in a direction perpendicular to the support rod.

[0006] Furthermore, the baffle is a straight plate or an arc-shaped plate, used to limit the swing of the mold.

[0007] Furthermore, the first claw rod has fixed blocks on both its left and right sides, and the second claw rod has sliders on both its left and right sides. One end of the support rod is fixedly connected to the fixed block, and the other end is slidably connected to the slider.

[0008] Furthermore, the fixing block and the slider are provided with through holes for installing the support rod. The end of the support rod near the fixing block is provided with a retaining ring that abuts against the inner side of the fixing block, and a washer and fastener that abut against the outer side of the fixing block. The end of the support rod near the slider is provided with a washer and fastener that abut against the outer side of the slider.

[0009] Furthermore, both the fixing block and the slider are integral structures. The first claw rod is sleeved in the middle of the fixing block and fixed by welding, and the second claw rod is sleeved in the middle of the slider and fixed by welding.

[0010] Compared with the prior art, the beneficial effects of this utility model are: This utility model's mold handling lifting device, when lifting heavy objects, uses gravity to provide an upward and inward pulling force to the first and second claw rods, driving the first and / or second claw rods to automatically translate and retract along the support rod to clamp the mold, effectively preventing the mold from falling. At the same time, baffles extending to both sides of the first claw rod along the direction perpendicular to the support rod can fix the cylindrical mold sleeve and prevent tilting. This not only improves the safety and stability of the lifting operation but also increases the efficiency of the lifting operation. Attached Figure Description

[0011] Figure 1 This is a schematic diagram of the structure of the mold handling and lifting device of this utility model; Figure 2 This is a schematic diagram of the hoisting of the mold handling lifting device of this utility model; In the picture: 1. Baffle; 2. First claw rod; 3. Second claw rod; 4. Fixing block; 5. Slider; 6. Support rod; 7. Screw; 8. Washer ring; 9. Lifting chain. Detailed Implementation

[0012] To facilitate understanding of this utility model, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0013] The present invention will now be described in detail. In the following paragraphs, different aspects of the embodiments are defined in more detail. These aspects may be combined with any other aspect or multiple aspects unless explicitly stated otherwise. In particular, any feature considered preferred or advantageous may be combined with one or more other features considered preferred or advantageous.

[0014] In the description of this utility model, it should be understood that the terms "inner", "outer", "upper", "lower", "left" and "right" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and do not indicate or imply that the device referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limiting the scope of protection of this utility model.

[0015] refer to Figure 1-2 As shown, this utility model discloses a mold handling lifting device, including a first claw rod 2, a second claw rod 3, and a support rod 6 connected between the first claw rod 2 and the second claw rod 3. The support rod 6 is slidably connected to at least one of the first claw rod 2 and the second claw rod 3. A lifting chain 9 is also connected to the top of the first claw rod 2 and the second claw rod 3. When lifting heavy objects, the lifting chain 9 provides an upward and inward pulling force to the first claw rod 2 and the second claw rod 3, driving the first claw rod 2 and / or the second claw rod 3 to move towards each other along the support rod 6 to clamp the mold. This effectively prevents the mold from falling, improving not only the safety and stability of the lifting operation but also its efficiency.

[0016] In some embodiments, the bottom inner sides of both the first claw rod 2 and the second claw rod 3 are provided with claw hooks, and the inner side of the first claw rod 2 is also provided with a baffle 1 extending to both sides of the first claw rod 2 in a direction perpendicular to the support rod 6. The baffle 1 is used to limit the swing of the mold. Preferably, the baffle 1 is a straight plate or an arc-shaped plate, which is installed on the side of the first claw rod 2 by welding. The baffle 1 can fix the cylindrical mold sleeve and prevent tilting; it not only improves the safety and stability of the hoisting operation, but also improves the efficiency of the hoisting operation.

[0017] In some embodiments, the first claw 2 has fixing blocks 4 on both its left and right sides, the second claw 3 has sliders 5 on both its left and right sides, and there are two support rods 6 symmetrically connected to the left and right sides of the first claw 2 and the second claw 3. One end of the support rod 6 is fixedly connected to the fixing block 4, and the other end is slidably connected to the slider 5. The support rods 6 are arranged on the left and right sides of the first claw 2 and the second claw 3 to ensure the stability of the movement of the second claw 3.

[0018] In some embodiments, the fixing block 4 and the slider 5 are provided with through holes for mounting the support rod 6. The end of the support rod 6 near the fixing block 4 has a retaining ring abutting against the inner side of the fixing block 4, and a washer 8 and a fastener 7 abutting against the outer side of the fixing block 4. The end of the support rod 6 near the slider 5 also has a washer 8 and a fastener 7 abutting against the outer side of the slider 5. Preferably, the fastener 7 is a screw, which can be fixed to the end of the support rod 6 to prevent the support rod 6 from slipping out of the through holes in the fixing block 4 and the slider 5.

[0019] In some embodiments, the fixing block 4 and the slider 5 are both integral structures, the first claw rod 2 is sleeved in the middle of the fixing block 4 and fixed by welding, and the second claw rod 3 is sleeved in the middle of the slider 5 and fixed by welding.

[0020] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A mold handling and lifting device, characterized in that, The device includes a first claw (2), a second claw (3), and a support rod (6) connected between the first claw (2) and the second claw (3). The support rod (6) is slidably connected to at least one of the first claw (2) and the second claw (3). The top of the first claw (2) and the second claw (3) is also connected to a lifting chain (9). When lifting heavy objects, the lifting chain (9) provides an upward and inward pulling force to the first claw (2) and the second claw (3), driving the first claw (2) and / or the second claw (3) to move towards each other along the support rod (6) to clamp the mold.

2. The mold handling and lifting device according to claim 1, characterized in that, Both the bottom inner sides of the first claw rod (2) and the second claw rod (3) are provided with claw hooks, and the inner side of the first claw rod (2) is also provided with baffles (1) extending to both sides of the first claw rod (2) in a direction perpendicular to the support rod (6).

3. The mold handling and lifting device according to claim 2, characterized in that, The baffle (1) is a straight plate or an arc plate, used to restrict the swing of the mold.

4. The mold handling and lifting device according to claim 1, characterized in that, The first claw rod (2) has fixed blocks (4) on both the left and right sides, and the second claw rod (3) has sliders (5) on both the left and right sides. One end of the support rod (6) is fixedly connected to the fixed block (4), and the other end is slidably connected to the slider (5).

5. The mold handling and lifting device according to claim 4, characterized in that, The fixing block (4) and the slider (5) are provided with through holes for installing the support rod (6). The end of the support rod (6) near the fixing block (4) is provided with a retaining ring that abuts against the inner side of the fixing block (4), and a washer (8) and a fastener (7) that abut against the outer side of the fixing block (4). The end of the support rod (6) near the slider (5) is provided with a washer (8) and a fastener (7) that abut against the outer side of the slider (5).

6. The mold handling and lifting device according to claim 4, characterized in that, The fixing block (4) and the slider (5) are both integral structures. The first claw rod (2) is sleeved in the middle of the fixing block (4) and fixed by welding. The second claw rod (3) is sleeved in the middle of the slider (5) and fixed by welding.

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