Automatic cutting device for pouring gate of balancing weight of loading machine
By designing an automatic cutting device for the loader counterweight sprue, combined with a cutting machine and a grinding disc, the automatic cutting and smoothing of the sprue is achieved, solving the problem of incomplete sprue cutting and improving work efficiency.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-04-01
- Publication Date
- 2026-03-03
AI Technical Summary
In existing technologies, the sprue of the counterweight block of the loader is not completely cut, resulting in insufficient surface smoothness, which requires manual grinding and has low work efficiency.
Design an automatic cutting device for the sprue of a loader counterweight block. Combine a cutting machine and a grinding disc, and use a servo motor and hydraulic cylinder to achieve automated integrated operation of cutting and grinding, ensuring that the sprue is completely removed.
This process allows for the complete cutting and smoothing of the gating system, avoiding secondary processing and improving work efficiency.
Smart Images

Figure CN223960883U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of cutting device technology, specifically an automatic cutting device for the sprue of a loader counterweight block. Background Technology
[0002] The sprue for loader counterweights is an important component in the casting process. It is mainly used in the casting of loader counterweights, which are components used to increase weight and improve stability on loaders. They are usually made of materials such as cast iron or cast steel. The sprue is a channel used to introduce molten metal into the mold during the casting process. After casting is completed, the channel will have a metal protrusion.
[0003] During the process of removing the sprue at the top of the counterweight, a cutting machine is mainly used. In order to avoid the cutting saw blade from damaging the counterweight itself, there will be a certain gap between the saw blade and the main body of the counterweight. This will result in the inability to cut completely cleanly and the surface smoothness cannot be guaranteed. Subsequent manual grinding is required, which leads to insufficient work efficiency. Utility Model Content
[0004] The purpose of this invention is to provide an automatic cutting device for the sprue of a loader counterweight block, so as to solve the problems mentioned in the background art.
[0005] To achieve the above objectives, this utility model provides the following technical solution: it includes an outer frame, a pair of fixing blocks are installed between the outer frames, a drive frame is fixed on the rear side of the upper part of the outer frame, an installation plate is slidably connected to the front side of the drive frame through a drive assembly, a cutting machine is fixed on the installation plate, the output end of the cutting machine is located below and a saw blade is installed thereon, a lifting frame is installed at the center of the upper part of the outer frame, a turntable is rotatably connected inside the lifting frame, a grinding disc is fixed to the bottom of the turntable extending out of the lifting frame.
[0006] Preferably, the drive assembly includes a drive slot and a servo motor. The drive slot is formed inside the drive frame and is aligned with the mounting plate. A drive block is slidably connected inside the drive slot. The front side of the drive block is fixed to the mounting plate. A threaded rod is rotatably connected inside the drive slot. The threaded rod passes through the drive block and is threadedly connected to the drive block.
[0007] Preferably, the servo motor is fixed on the outside of the outer frame and its position is aligned with the threaded rod, and the output end of the servo motor is fixed to the end of the threaded rod.
[0008] Preferably, a telescopic cylinder is installed on the outer side of the outer frame at a position corresponding to the fixed block, and the output end of the telescopic cylinder is fixed on the fixed block.
[0009] Preferably, a drive motor that drives the turntable to rotate is installed inside the lifting frame, a hydraulic cylinder is fixed at the upper end of the outer frame, and the output end of the hydraulic cylinder is fixed on the lifting frame. Positioning posts are fixed at the four corners of the bottom of the lifting frame. The bottom of the positioning posts is an elastic rubber structure and is aligned with the bottom of the grinding disc.
[0010] Preferably, a carrier plate is fixed inside the lower part of the outer frame, and the carrier plate has an L-shaped structure.
[0011] Compared with the prior art, the beneficial effects of this utility model are: by using the horizontal movement of the cutting machine, the main body of the sprue protrusion can be cut, and by using the lifting and lowering of the grinding disc, the root of the sprue can be ground flat, reducing the situation of incomplete automatic cutting, eliminating the need for secondary processing, and improving work efficiency. Attached Figure Description
[0012] Figure 1 This is a schematic diagram of the front view of the automatic cutting device for the counterweight block sprue of a loader according to the present invention;
[0013] Figure 2 This is a schematic diagram of the top cross-sectional structure of the outer frame of the automatic cutting device for the counterweight block sprue of a loader according to the present invention;
[0014] Figure 3 This is a schematic diagram of the external structure of the lifting frame of the automatic cutting device for the counterweight block sprue of a loader according to the present invention;
[0015] Figure 4 This is a schematic diagram of the combined structure of the drive block and mounting plate of the automatic cutting device for the counterweight block sprue of a loader according to the present invention.
[0016] In the diagram: 1. Outer frame; 2. Carrier plate; 3. Fixing block; 31. Telescopic cylinder; 4. Cutting machine; 41. Saw blade; 5. Lifting frame; 51. Turntable; 52. Grinding disc; 53. Hydraulic cylinder; 54. Positioning column; 6. Drive frame; 61. Drive slot; 62. Drive block; 63. Mounting plate; 64. Threaded rod; 65. Servo motor. Detailed Implementation
[0017] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0018] Please see Figure 1This utility model provides a technical solution: it includes an outer frame 1, a pair of fixing blocks 3 installed between the outer frames 1, a drive frame 6 fixed on the rear side of the upper part of the outer frame 1, a mounting plate 63 slidably connected to the front side of the drive frame 6 through a drive assembly, a cutting machine 4 fixed on the mounting plate 63, the output end of the cutting machine 4 is located at the bottom and a saw blade 41 is installed thereon, a lifting frame 5 is installed at the center of the upper part of the outer frame 1, a turntable 51 is rotatably connected inside the lifting frame 5, the bottom of the turntable 51 extends out of the lifting frame 5 and a grinding disc 52 is fixed thereon, and a carrier plate 2 is fixed inside the lower part of the outer frame 1, the carrier plate 2 has an L-shaped structure.
[0019] In this invention, the cast counterweight is placed on the carrier plate 2, ensuring that the back side of the counterweight abuts against the back side of the carrier plate 2, so that the sprue at the top of the counterweight is aligned with the saw blade 41, and then the cutting machine 4 is used to cut it. Finally, the bottom of the grinding disc 52 abuts against the remaining sprue protrusions and grinds them until they are completely removed.
[0020] The drive assembly includes a drive slot 61 and a servo motor 65. The drive slot 61 is located inside the drive frame 6 and is aligned with the mounting plate 63. A drive block 62 is slidably connected inside the drive slot 61. The front side of the drive block 62 is fixed to the mounting plate 63. A threaded rod 64 is rotatably connected inside the drive slot 61. The threaded rod 64 passes through the drive block 62 and is threadedly connected to the drive block 62. The servo motor 65 is fixed on the outside of the outer frame 1 and is aligned with the threaded rod 64. The output end of the servo motor 65 is fixed to the end of the threaded rod 64.
[0021] Driven by the servo motor 65, the threaded rod 64 can be rotated, which in turn drives the drive block 62 to slide, and finally drives the mounting plate 63 to slide.
[0022] A telescopic cylinder 31 is installed on the outer side of the outer frame 1 at a position corresponding to the fixed block 3, and the output end of the telescopic cylinder 31 is fixed on the fixed block 3.
[0023] Driven by the telescopic cylinder 31, the fixed block 3 can clamp the counterweight block, keeping it stable.
[0024] The lifting frame 5 is equipped with a drive motor that drives the turntable 51 to rotate. The upper end of the outer frame 1 is fixed with a hydraulic cylinder 53, and the output end of the hydraulic cylinder 53 is fixed on the lifting frame 5. The four corners of the bottom of the lifting frame 5 are fixed with positioning posts 54. The bottom of the positioning posts 54 is an elastic rubber structure and is aligned with the bottom of the grinding disc 52.
[0025] The output of the drive motor drives the turntable 51 and the grinding disc 52 to rotate, and at the same time, the hydraulic cylinder 53 drives the lifting frame 5 to rise and fall.
[0026] Working principle: First, connect the entire device to an external power source. Then, place the cast counterweight block onto the carrier plate 2, ensuring that the rear side of the counterweight block abuts against the rear side of the carrier plate 2, aligning the sprue at the upper end of the counterweight block with the saw blade 41. Then, using the telescopic cylinder 31, the fixing block 3 clamps the counterweight block, keeping it stable. Next, the cutting machine 4 performs the cutting. During the cutting process, the horizontal sliding of the mounting plate 63 drives the cutting machine 4 to slide horizontally, thereby cutting the sprue body. During this process, the servo motor 65... The drive mechanism can rotate the threaded rod 64, which in turn drives the drive block 62 to slide, and finally drives the mounting plate 63 to slide. After the main body of the sprue is cut, the output end of the drive motor drives the turntable 51 and the grinding disc 52 to rotate. At the same time, the hydraulic cylinder 53 drives the lifting frame 5 to descend until the bottom of the grinding disc 52 abuts against the remaining sprue protrusions and grinds them until they are completely eliminated. This achieves automatic cutting of the upper sprue without residue, making the operation simpler and improving work efficiency.
[0027] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.
[0028] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.
Claims
1. A loader weight gate automatic cutting device comprising an outer frame (1), characterized in that: A pair of fixed blocks (3) are installed between the outer frames (1), a driving frame (6) is fixed to the rear side above the outer frames (1), a mounting plate (63) is slidably connected to the front side of the driving frame (6) through a driving assembly, a cutting machine (4) is fixed to the mounting plate (63), the output end of the cutting machine (4) is located below, and a saw blade (41) is installed, a lifting frame (5) is installed at the center position of the upper end of the outer frame (1), a rotating disc (51) is rotatably connected in the lifting frame (5), the rotating disc (51) extends out of the lifting frame (5) at the bottom, and a polishing disc (52) is fixed.
2. A loader weight gate automatic cutting device as set forth in claim 1, characterized by: The driving assembly comprises a driving groove (61) and a servo motor (65), the driving groove (61) is formed in the driving frame (6) and is aligned with the mounting plate (63), the driving block (62) is slidably connected in the driving groove (61), the front side of the driving block (62) is fixed with the mounting plate (63), the threaded rod (64) is rotatably connected in the driving groove (61), the threaded rod (64) penetrates through the driving block (62) and is threadedly connected with the driving block (62).
3. A loader weight gate automatic cutting device as set forth in claim 2, wherein: The servo motor (65) is fixed outside the outer frame (1) and is aligned with the threaded rod (64), and the output end of the servo motor (65) is fixed to the end of the threaded rod (64).
4. The automatic cutting device for loader weight runner gate according to claim 1, characterized in that: The telescopic cylinder (31) is installed outside the outer frame (1) and corresponds to the fixed block (3), and the output end of the telescopic cylinder (31) is fixed to the fixed block (3).
5. The automatic cutting device for loader weight gate according to claim 1, characterized in that: The driving motor driving the rotating disc (51) is installed in the lifting frame (5), the hydraulic cylinder (53) is fixed to the upper end of the outer frame (1) and the output end of the hydraulic cylinder (53) is fixed to the lifting frame (5), the positioning columns (54) are fixed to the four corners of the bottom of the lifting frame (5), the bottom of the positioning column (54) is made of elastic rubber structure and is aligned with the bottom of the polishing disc (52).
6. A loader weight gate automatic cutting device as set forth in claim 1, wherein: The load plate (2) is fixed inside the outer frame (1) and is L-shaped structure.