A type of gold-plated lug bottom reinforcement pad
By designing reinforcing pads on the bottom surface of the mold lifting lugs, and adjusting the height of the pads using adjusting bolts and locking nuts, combined with the self-weight and counterweight of the lost foam model, the problem of insecure reinforcement on the bottom surface of the mold lifting lugs was solved, improving the local sand mold strength and the arrangement effect of the slag discharge seat.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- NANTONG HONGGANG CAST STEEL CO LTD
- Filing Date
- 2025-07-26
- Publication Date
- 2026-06-30
AI Technical Summary
In the existing technology, the artificial reinforcement of the bottom surface of the gold mold lifting lug is not firm, which affects the arrangement of the slag discharge seat and the local sand mold strength is insufficient, resulting in sand separation and bulging problems on the surface of the casting.
Design a gold-type lifting lug bottom reinforcement pad, including an upper box body and a lower box body, with reinforcement adjustment components and limiting components inside. The height of the pad can be adjusted by adjusting bolts and locking nuts. Combined with the self-weight and counterweight of the lost foam model, precise reinforcement can be achieved, and the position of the pad can be stabilized by the limiting components.
It achieves precise and firm reinforcement of the bottom surface of the mold lifting lugs, improves the local sand mold strength, ensures the normal arrangement of the slag discharge seat after sand embedding and turning, and avoids sand separation and bulging on the surface of the casting.
Smart Images
Figure CN224424210U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of reinforcing pad technology, and in particular to a gold-type lifting lug bottom reinforcing pad. Background Technology
[0002] Before embedding sand in the mold for lost foam casting of automobiles, the bottom surface needs to be reinforced. This reinforcement serves two purposes: firstly, it prevents the lost foam mold from being squeezed and deformed by the weight of the casting sand during the main molding process; secondly, it partially blocks the bottom surface to prevent casting sand from entering and affecting the normal implementation of processes such as embedding sand in the bottom surface, slag removal, and venting.
[0003] The existing patent CN 219636731 U proposes a portable lifting lug reinforcement device, including: two cover plates, arranged parallel to each other at intervals, and each of the two cover plates has a slot on the same side, the slot being fitted onto the lifting lug; a web plate, arranged between the two cover plates, and the web plate having a shaft hole; and a pad plate, installed at the ends of the two cover plates. However, below the lifting lug, the gap between the model and the platform is small, making manual sand molding inconvenient, manual reinforcement not firm, and resin sand easily entering local gaps, affecting the arrangement of the special slag discharge seat at the lifting lug. Resin sand entering the gaps leads to insufficient strength of the local sand mold. After casting, the surface of the casting is prone to sand blockage and bulging, and the local sand mold is prone to drift. Utility Model Content
[0004] The purpose of this utility model is to solve the problems in the existing technology where artificial reinforcement is not firm, affecting the arrangement of the slag discharge seat and the local sand mold strength is insufficient, and to propose a gold mold lifting lug bottom reinforcement pad.
[0005] To achieve the above objectives, the present invention adopts the following technical solution: a metal-type lifting lug bottom reinforcing pad, comprising an upper box body and a lower box body, wherein the lower box body is disposed inside the upper box body, a reinforcing and adjusting component is disposed inside the lower box body, and a limiting component is disposed inside the upper box body;
[0006] The reinforcement and adjustment assembly includes a fixing nut, which is fixedly installed on the inner wall of the lower housing body. An adjusting bolt is provided inside the fixing nut, and a locking nut is provided inside the adjusting bolt. The locking nut is located at the bottom of the lower housing body. A first circular hole is opened on the outer surface of the adjusting bolt, and a spring pin is provided inside the first circular hole. An adjusting spring is sleeved on the outer surface of the adjusting bolt and is located inside the lower housing body.
[0007] The effect achieved by the entire embodiment 1 is that a lower box body is provided inside the upper box body, a reinforcement and adjustment component is provided inside the lower box body, and a limit component is provided inside the upper box body.
[0008] The reinforcement and adjustment assembly includes a fixing nut, which is fixedly installed on the inner wall of the lower housing body. An adjusting bolt is located inside the fixing nut, and a locking nut is located inside the adjusting bolt. The locking nut is located at the bottom of the lower housing body. A first circular hole is formed on the outer surface of the adjusting bolt, and a spring pin is installed inside the first circular hole. An adjusting spring is fitted onto the outer surface of the adjusting bolt and is located inside the lower housing body. By adjusting the bolt, the overall height of the reinforcement pad is adjusted to accommodate reinforcement of the mold lifting lugs with different drop heights. The locking nut is then used to lock the assembly. The adjusting bolt is used to level the lower housing body and the reinforcement pad as a whole, and the locking nut is used to lock them in place. The adjusting bolt has a first circular hole for inserting the fixing spring pin. The spring pin is installed on the adjusting bolt to prevent the adjusting spring from shifting or misaligning. Thus, the weight of the lost foam mold itself and the counterweight placed on top of the lost foam mold achieve reinforcement of the bottom surface of the mold lifting lugs, making manual reinforcement more precise and secure.
[0009] Preferably, a fixing buckle is fixedly installed on the top of the inner wall of the upper box body, and a handle is provided inside the fixing buckle; a slag cleaning hole is opened at the bottom of the inner wall of the lower box body, and a limiting hole is opened at the bottom of the inner wall of the lower box body, with the projection of the handle located inside the limiting hole; the limiting component includes a telescopic rod, one end of which is fixedly installed on the top of the inner wall of the upper box body, and a limiting plate is fixedly installed on the other end of the telescopic rod; a fixing plate is fixedly installed on the other end of the adjusting spring, a second circular hole is opened on the top of the fixing plate, the telescopic rod is located inside the second circular hole, and a third circular hole is opened at the center of the fixing plate; the number of the supplementary adjustment component and the limiting component are both four, and the diameter of the adjusting bolt is smaller than the diameter of the third circular hole.
[0010] The overall effect of Embodiment 2 is as follows: A fixing buckle is fixedly installed on the top of the inner wall of the upper box body, and a handle is provided inside the fixing buckle, allowing the reinforcing pad to be removed as a whole after the sand box is flipped over; a slag-removing hole is opened at the bottom of the inner wall of the lower box body, and a limiting hole is opened at the bottom of the inner wall of the lower box body, with the handle projected inside the limiting hole, allowing sand and other foreign objects inside the pad to fall out more quickly; the limiting component includes a telescopic rod, one end of which is fixedly installed on the top of the inner wall of the upper box body, and the other end of which is fixedly installed with a limiting plate, providing a more stable fixation for the telescopic rod; a fixing plate is fixedly installed on the other end of the adjusting spring, with a second circular hole on the top of the fixing plate, the telescopic rod located inside the second circular hole, and a third circular hole at the center of the fixing plate, allowing the adjusting spring to distribute force more evenly when the upper box body is under pressure; and four reinforcing adjustment components and four limiting components are used, with the diameter of the adjusting bolt smaller than the diameter of the third circular hole, allowing the adjusting bolt to pass through the third circular hole more easily.
[0011] Compared with the prior art, the advantages and positive effects of this utility model are as follows: 1. In this utility model, the overall height of the reinforcing pad is adjusted by adjusting the bolt to adapt to the reinforcement of the metal mold lifting lugs with different drops, and is locked by locking the nut. The lower box body and the reinforcing pad are adjusted to be level by adjusting the bolt and locked in place by locking the nut. The adjusting bolt has a first round hole for inserting a fixing spring pin. The spring pin is installed on the adjusting bolt to prevent the adjusting spring from shifting or misaligning. Thus, the bottom surface of the metal mold lifting lug is reinforced by the weight of the lost foam model and the counterweight placed on the upper part of the lost foam, thereby making the manual reinforcement more precise and firm.
[0012] 2. In this utility model, the overall level and appropriate height of the reinforcing pads are adjusted by adjusting bolts and locked with locking nuts. After the mold base is placed on the molding platform, the reinforcing pads are placed between each lifting lug of the mold and the molding platform. Under the action of its own weight and the external counterweight, the bottom surface of the mold is tightly fitted to the molding platform. At the same time, under the action of its own weight and the counterweight, the adjusting spring is compressed until there are no gaps between the bottom surface of the lifting lug, the reinforcing pads, and the molding platform, thereby increasing the local strength of the sand mold. After sand molding and sand box flipping, the reinforcing pads are removed as a whole using the handle. After a special slag discharge seat is placed on the bottom surface of the lifting lug, sand molding is carried out, thus better arranging the position of the slag discharge seat. Attached Figure Description
[0013] Figure 1 A three-dimensional structural diagram of a metal-type lifting lug bottom reinforcing pad is provided for this utility model;
[0014] Figure 2 This utility model provides a three-dimensional structural diagram of the upper box inside a gold-type lifting lug bottom reinforcing pad;
[0015] Figure 3 This utility model provides a three-dimensional structural diagram of the lower box of the bottom reinforcing pad of the metal-type lifting lug;
[0016] Figure 4 A three-dimensional structural diagram of a reinforcement and adjustment component in a gold-type lifting lug bottom surface reinforcement pad block is provided for this utility model;
[0017] Figure 5 This utility model provides a three-dimensional structural diagram of the gold-shaped lifting lug and the reinforcing pad in the bottom surface reinforcement pad of the gold-shaped lifting lug;
[0018] Figure 6 This utility model provides a side view of the metal-shaped lifting lug and the reinforcing pad in the bottom surface of the metal-shaped lifting lug.
[0019] Legend: 1. Upper box body; 2. Fixing buckle; 3. Handle; 4. Lower box body; 5. Slag cleaning hole; 6. Limiting hole; 7. Reinforcing and adjusting assembly; 701. Fixing nut; 702. Locking nut; 703. Adjusting bolt; 704. First round hole; 705. Spring pin; 706. Adjusting spring; 8. Limiting assembly; 801. Telescopic rod; 802. Limiting plate; 803. Fixing plate; 804. Second round hole; 805. Third round hole. Detailed Implementation
[0020] To better understand the above-mentioned objectives, features, and advantages of this utility model, the present utility model will be further described below with reference to the accompanying drawings and embodiments. It should be noted that, unless otherwise specified, the embodiments and features described in these embodiments can be combined with each other.
[0021] Many specific details are set forth in the following description in order to provide a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Therefore, the present invention is not limited to the specific embodiments disclosed in the following specification.
[0022] Example 1, such as Figures 1-6 As shown, this utility model provides a metal-shaped lifting lug bottom reinforcing pad, including an upper box body 1 and a lower box body 4. The lower box body 4 is disposed inside the upper box body 1, a reinforcing and adjusting component 7 is disposed inside the lower box body 4, and a limiting component 8 is disposed inside the upper box body 1.
[0023] The reinforcement adjustment assembly 7 includes a fixing nut 701, which is fixedly installed on the inner wall of the lower housing body 4. An adjusting bolt 703 is provided inside the fixing nut 701, and a locking nut 702 is provided inside the adjusting bolt 703. The locking nut 702 is located at the bottom of the lower housing body 4. A first round hole 704 is opened on the outer surface of the adjusting bolt 703. A spring pin 705 is provided inside the first round hole 704. An adjusting spring 706 is sleeved on the outer surface of the adjusting bolt 703. The adjusting spring 706 is located inside the lower housing body 4.
[0024] The effect achieved by the entire embodiment 1 is that a lower box body 4 is provided inside the upper box body 1, a reinforcement and adjustment component 7 is provided inside the lower box body 4, and a limit component 8 is provided inside the upper box body 1.
[0025] The adjustment assembly 7 includes a fixing nut 701, which is fixedly installed on the inner wall of the lower housing body 4. An adjusting bolt 703 is disposed inside the fixing nut 701, and a locking nut 702 is disposed inside the adjusting bolt 703. The locking nut 702 is located at the bottom of the lower housing body 4. A first circular hole 704 is formed on the outer surface of the adjusting bolt 703, and a spring pin 705 is disposed inside the first circular hole 704. An adjusting spring 706 is fitted onto the outer surface of the adjusting bolt 703 and is located inside the lower housing body 4. The adjusting bolt 703 is used to adjust the... The overall height of the reinforcing pad is adapted to the reinforcement of the metal mold lifting lugs with different drops. It is locked by locking nut 702. The lower box body 4 and the reinforcing pad are adjusted to be level by adjusting bolt 703 and locked in place by locking nut 702. Adjusting bolt 703 has a first round hole 704 for inserting fixed spring pin 705. Spring pin 705 is installed on adjusting bolt 703 to prevent adjusting spring 706 from shifting or misaligning. Thus, the bottom surface of the metal mold lifting lug is reinforced by the weight of the lost foam model and the counterweight placed on the upper part of the lost foam, thereby making manual reinforcement more precise and firm.
[0026] Example 2, as Figures 1-6As shown, a fixing buckle 2 is fixedly installed on the top of the inner wall of the upper box body 1, and a handle 3 is provided inside the fixing buckle 2; a slag cleaning hole 5 is opened at the bottom of the inner wall of the lower box body 4, and a limiting hole 6 is opened at the bottom of the inner wall of the lower box body 4, with the projection of the handle 3 located inside the limiting hole 6; the limiting component 8 includes a telescopic rod 801, one end of which is fixedly installed on the top of the inner wall of the upper box body 1, and a limiting plate 802 is fixedly installed on the other end of the telescopic rod 801; a fixing plate 803 is fixedly installed on the other end of the adjusting spring 706, a second round hole 804 is opened at the top of the fixing plate 803, the telescopic rod 801 is located inside the second round hole 804, and a third round hole 805 is opened at the center of the fixing plate 803; there are four of each of the supplementary adjustment component 7 and the limiting component 8, and the diameter of the adjusting bolt 703 is smaller than the diameter of the third round hole 805.
[0027] The overall effect of Embodiment 2 is as follows: a fixing buckle 2 is fixedly installed on the top of the inner wall of the upper box body 1, and a handle 3 is provided inside the fixing buckle 2, which can be used to remove the reinforcing pad block as a whole after the sand box is turned over; a slag cleaning hole 5 is opened at the bottom of the inner wall of the lower box body 4, and a limiting hole 6 is opened at the bottom of the inner wall of the lower box body 4, with the projection of the handle 3 located inside the limiting hole 6, which can better allow foreign objects such as sand inside the pad block to fall out in time; the limiting component 8 includes a telescopic rod 801, one end of the telescopic rod 801 is fixedly installed on the top of the inner wall of the upper box body 1, and the other end of the telescopic rod 801 is fixedly installed with a limiting plate 8. 02, which can make the telescopic rod 801 more securely fixed; a fixing plate 803 is fixedly installed on the other end of the adjusting spring 706, and a second round hole 804 is opened on the top of the fixing plate 803. The telescopic rod 801 is located inside the second round hole 804. A third round hole 805 is opened at the center of the fixing plate 803, so that when the upper box body 1 is under pressure, the adjusting spring 706 can better distribute the force evenly; by having four reinforcing adjustment components 7 and four limiting components 8, and the diameter of the adjusting bolt 703 being smaller than the diameter of the third round hole 805, the adjusting bolt 703 can better pass through the third round hole 805.
[0028] Working principle: After the mold base is placed on the molding platform, reinforcing pads are placed between each lifting lug of the mold and the molding platform. The overall height of the reinforcing pads is adjusted by adjusting bolts 703 to accommodate the reinforcement of the lifting lugs of the mold with different drops. The pads are then locked in place by locking nuts 702. The lower housing body 4 and the reinforcing pads are adjusted to be level by adjusting bolts 703 and locked in place by locking nuts 702. The adjusting bolts 703 have a first round hole 704 for inserting a fixing spring pin 705. The spring pin 705 is installed on the adjusting bolts 703 to prevent the adjusting spring 706 from shifting or misaligning. Thus, the bottom surface of the mold lifting lugs is reinforced by the weight of the lost foam model and the counterweight placed on top of the lost foam, making the manual reinforcement more precise and firm. Under the action of the mold itself and the external counterweight, the bottom surface of the mold is tightly fitted to the molding platform. Meanwhile, under the action of its own weight and the counterweight, the compression adjustment spring 706 is compressed to the bottom surface of the lifting lug, the reinforcing pad, and the molding platform without any gaps, thereby making the local sand mold stronger. After the sand is buried and the sand box is turned over, the reinforcing pad can be removed as a whole through the handle 3. After a special slag discharge seat is placed on the bottom surface of the lifting lug, the sand is buried and molded better.
[0029] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model in any other way. Any person skilled in the art may make changes or modifications to the above-disclosed technical content to create equivalent embodiments for application in other fields. However, any simple modifications, equivalent changes, and modifications made to the above embodiments based on the technical essence of the present utility model without departing from the technical solution of the present utility model shall still fall within the protection scope of the technical solution of the present utility model.
Claims
1. A mold lug bottom surface reinforcement pad comprising an upper box body (1) and a lower box body (4), characterized in that: The upper housing body (1) is provided with a lower housing body (4) inside, the lower housing body (4) is provided with a reinforcement and adjustment component (7) inside, and the upper housing body (1) is provided with a limit component (8). The reinforcement adjustment assembly (7) includes a fixing nut (701), which is fixedly installed on the inner wall of the lower housing body (4). An adjusting bolt (703) is provided inside the fixing nut (701), and a locking nut (702) is provided inside the adjusting bolt (703). The locking nut (702) is located at the bottom of the lower housing body (4). A first round hole (704) is opened on the outer surface of the adjusting bolt (703), and a spring pin (705) is provided inside the first round hole (704). An adjusting spring (706) is sleeved on the outer surface of the adjusting bolt (703), and the adjusting spring (706) is located inside the lower housing body (4).
2. The reinforcing pad for the bottom surface of a metal-type lifting lug according to claim 1, characterized in that: A fixing buckle (2) is fixedly installed on the top of the inner wall of the upper box body (1), and a handle (3) is provided inside the fixing buckle (2).
3. The reinforcing pad for the bottom surface of a metal-type lifting lug according to claim 2, characterized in that: The bottom of the inner wall of the lower box body (4) is provided with a slag removal hole (5), and the bottom of the inner wall of the lower box body (4) is provided with a limiting hole (6). The projection of the handle (3) is located inside the limiting hole (6).
4. The metal-type lifting lug bottom reinforcing pad according to claim 1, characterized in that: The limiting component (8) includes a telescopic rod (801), one end of which is fixedly installed on the top of the inner wall of the upper box body (1), and the other end of which is fixedly installed with a limiting plate (802).
5. A reinforcing pad for the bottom surface of a metal-type lifting lug according to claim 4, characterized in that: The other end of the adjusting spring (706) is fixedly installed with a fixed plate (803). The top of the fixed plate (803) is provided with a second round hole (804). The telescopic rod (801) is located inside the second round hole (804). The center of the fixed plate (803) is provided with a third round hole (805).
6. A reinforcing pad for the bottom surface of a metal-type lifting lug according to claim 5, characterized in that: The number of the reinforcement adjustment component (7) and the limiting component (8) are both four, and the diameter of the adjusting bolt (703) is smaller than the diameter of the third circular hole (805).