Sand core repairing and discharging device
By designing a sand core trimming and discharge device, the sand core is fixed by using support columns, limit wheel brackets and positioning columns, and waste is collected by setting up dropping holes and edge guards. This solves the problems of waste dust and separation operation in the traditional trimming process, improves the success rate and reduces costs.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- JIANGSU TIANHONG MACHINERY IND
- Filing Date
- 2025-04-29
- Publication Date
- 2026-05-01
AI Technical Summary
Traditional sand core trimming processes generate a large amount of waste dust, which affects workers' health. Furthermore, trimming and transportation are two separate operations, resulting in low success rates and high costs.
Design a sand core repair and discharge device, including a repair unit and a discharge unit. The sand core is fixed by a support column, a limit wheel bracket and a positioning column. A discharge hole and a guard baffle are set to collect waste material, which is then transported to a mobile collection trolley through a discharge slide to achieve waste material collection and stable transportation.
It reduces waste and dust, protects workers' health, improves the success rate of core repair, simplifies the operation process, and reduces production costs.
Smart Images

Figure CN224182019U_ABST
Abstract
Description
A core repair and discharge device Technical Field
[0001] This utility model relates to the field of sand core trimming and transfer, and in particular to a sand core trimming and discharge device. Background Technology
[0002] Traditional sand core production requires trimming during the process, followed by transportation after trimming. In existing traditional production lines, trimming sand cores generates a large amount of waste dust, creating a harsh working environment and affecting workers' health. Furthermore, trimming and transportation are generally two separate processes. If there are defective cores due to trimming itself, they must be manually placed into storage or transported to storage after trimming. This process is cumbersome and increases the uncertainty of the journey, further reducing the success rate of core trimming and significantly increasing the cost of sand core production. Summary of the Invention
[0003] Therefore, there is a need for a core core removal device that can collect core core removal waste during the core removal process and stably transport the core core.
[0004] To achieve the above objectives, the inventors provide a core repair and discharge device, comprising a core repair unit and a discharge unit;
[0005] The core-repairing unit includes a fixed base, a robotic arm, and a core-repairing floating spindle. A cylinder that is driven and connected to the core-repairing floating spindle is provided on one side of the fixed base.
[0006] The discharge unit is provided with a sand core fixing platform, a discharge slide, and a moving fixture in sequence from top to bottom. The sand core fixing platform is fixedly connected to the discharge slide. The sand core fixing platform is provided with a support column, a limit wheel bracket, and a positioning column. A discharge hole is opened in the middle of the sand core fixing platform. A material collection hole is opened at the top of the discharge slide corresponding to the discharge hole. Below the material collection hole is a discharge ramp. A discharge side hole is opened at the bottom of the discharge ramp. A slide guide is provided at the bottom of the discharge slide, which is slidably connected to the guide rail on the moving fixture.
[0007] As a preferred structure of this utility model, a limit adjustment block is provided on the side of the sand core fixing platform corresponding to the positioning column.
[0008] As a preferred structure of this utility model, the limiting adjustment block is provided with a pressing block, and the opening of the fixing screw hole on the pressing block corresponds to the limiting adjustment block.
[0009] As a preferred structure of this utility model, a partition is provided below the material discharge hole of the material discharge slide, and the partition is located at the top of the material discharge slope.
[0010] As a preferred structure of this utility model, there are two material discharge side holes, which are arranged on both sides of the material discharge slide, and the top of the material discharge ramp is located at the center line of the material discharge slide.
[0011] As a preferred structure of this utility model, a protective cover is provided above the guide rail of the moving tool.
[0012] As a preferred structure of this utility model, the sand core fixing platform is provided with edge guards around its perimeter.
[0013] As a preferred structure of this utility model, a protective cover is provided above the guide rail of the moving tool.
[0014] As a preferred structure of this utility model, a mobile material collection trolley is provided below the material discharge side hole.
[0015] Unlike existing technologies, the above technical solution achieves the following beneficial effects:
[0016] (1) By setting support columns, limit wheel brackets and positioning columns on the sand core fixing platform, the sand core is fixed for trimming operation, and the sand core is protected during transportation after trimming, so as to prevent the sand core from being damaged due to instability during trimming and collisions after trimming, thereby increasing the success rate of sand core production.
[0017] (2) By opening a material drop hole at the bottom of the sand core fixing platform and setting a protective baffle around the sand core fixing platform, most of the waste generated during core repair enters the material discharge slide through the material drop hole and is transported to the mobile collection trolley through the material discharge slide. This prevents a large amount of waste generated during core repair from forming dust that affects the working environment, maintains a good working environment, protects the health of workers, and makes it easier to collect waste and realize the recycling and reuse of waste. Attached Figure Description
[0018] Figure 1 is a perspective view of the core repair and discharge device described in the specific embodiment;
[0019] Figure 2 is a perspective view of the sand core fixing platform described in the specific embodiment;
[0020] Figure 3 is a perspective view of the unloading slide and moving fixture described in the specific embodiment.
[0021] Explanation of reference numerals in the attached figures:
[0022] 1. Core repair unit; 11. Fixed base; 12. Robotic arm; 13. Core repair floating spindle; 2. Discharge unit; 21. Sand core fixing table; 211. Support column; 212. Limit wheel bracket; 213. Positioning column; 214. Discharge hole; 215. Limit adjustment block; 216. Clamping block; 217. Bolt; 218. Side guard plate; 22. Discharge slide; 221. Collection hole; 222. Discharge ramp; 223. Discharge side hole; 224. Slide guide; 225. Partition plate; 23. Moving fixture; 231. Guide rail; 232. Protective cover; 3. Cylinder; 4. Moving collection trolley. Detailed Implementation
[0023] To explain in detail the technical content, structural features, objectives, and effects of the technical solution, the following description is provided in conjunction with specific embodiments and accompanying drawings.
[0024] Please refer to Figures 1 to 3 together. As shown in the figures, this embodiment provides a core repair and discharge device, characterized in that it includes a core repair unit 1 and a discharge unit 2. The core repair unit 1 includes a fixed base 11, a robotic arm 12 and a core repair floating spindle 13. A cylinder 3 is provided on one side of the fixed base 11 and is driven and connected to the core repair floating spindle 13.
[0025] The discharge unit 2 is provided with a sand core fixing platform 21, a discharge slide 22 and a moving fixture 23 from top to bottom. The sand core fixing platform 21 is fixedly connected to the discharge slide 22. The sand core fixing platform 21 is provided with a support column 211, a limit wheel bracket 212 and a positioning column 213. A discharge hole 214 is opened in the middle of the sand core fixing platform 21. A collection hole 221 corresponding to the discharge hole 214 is opened at the top of the discharge slide 22. Below the collection hole 221 is a discharge ramp 222. A discharge side hole 223 is opened at the bottom of the discharge ramp 222. A slide guide 224 is provided at the bottom of the discharge slide 22, which is slidably connected to the guide rail 231 on the moving fixture 23.
[0026] The sand core fixing table 21 and the unloading slide table 22 are fixedly connected by bolts 217. A limit adjustment block 215 is provided on the side of the sand core fixing table 21 corresponding to the positioning post 213. The limit adjustment block 215 is an L-shaped limit block. Limit bolts perpendicular to the limit adjustment block 215 and parallel to the sand core fixing table 21 are provided on two sides of the limit adjustment block 215. A clamping block 216 is provided on the limit adjustment block 215, with the opening of the fixing screw hole corresponding to the limit adjustment block 215. After the limit adjustment block 215 confirms the position of the positioning block, it is fixed by the clamping block 216. A protective baffle 218 is provided around the sand core fixing table 21 to prevent waste material generated during core repair from splashing out, allowing the waste material to remain in the sand core fixing table 21 and fall through the discharge hole 214 for collection.
[0027] A partition 225 is provided below the discharge hole 214 of the discharge slide 22, and the partition 225 is located at the top of the discharge ramp 222. There are two discharge side holes 223, which are located on both sides of the discharge slide 22. A mobile collection trolley 4 is provided below the discharge side holes 223. The top of the discharge ramp 222 is located at the center line of the discharge slide 22. The waste generated from core repair falls from both sides of the partition 225 and falls into the mobile collection trolley 4 through the discharge side holes 223 on both sides of the discharge slide 22.
[0028] A protective cover 232 is provided above the guide rail 231 of the movable tooling 23 to prevent the core repair waste from falling and getting stuck on the guide rail 231 of the movable tooling 23, thereby affecting the movement of the unloading slide 22 on the guide rail 231.
[0029] During the operation, the sand core to be trimmed is first placed on the sand core fixing table 21. The sand core is supported and fixed by the support column 211, the limit wheel bracket 212, and the positioning column 213. The position of the positioning column 213 is adjusted by the limit adjustment block 215, and the adjusted limit adjustment block 215 is fixed by the clamping block 216, thus completing the fixation of the sand core. Then, the core trimming floating spindle 13 driven by the cylinder 3 is started to trim the sand core. The waste generated during the core trimming process is discharged through the sand core fixing table. After the edge guard 218 blocks part of the material, it falls from the material drop hole 214 into the material drop slide 22, and then falls into the material collection hole 221 at the top of the material drop slide 22. It is separated into two sides of the material drop slide 22 by the partition 225, and slides down on the material drop ramp 222. It falls into the moving material collection trolley 4 through the material drop side holes 223 set on both sides of the material drop slide 22. After the core repair operation is completed, it moves to the target location on the guide rail 231 on the moving device through the slide guide 224 set at the bottom of the material drop slide 22.
[0030] By setting support columns 211, limit wheel brackets 212, and positioning columns 213 on the sand core fixing platform 21, the sand core is fixed for trimming operations and protected during transportation after trimming. This prevents damage to the sand core due to instability or impacts during trimming, increasing the success rate of sand core production. By opening a material drop hole 214 at the bottom of the sand core fixing platform 21 and setting edge guards 218 around the sand core fixing platform, most of the waste generated during trimming enters the material discharge slide 22 through the material drop hole 214 and is then transported to the mobile collection trolley 4 via the material discharge slide 22. This prevents the generation of large amounts of waste during trimming from causing dust pollution that affects the working environment, maintains a good working environment, protects the health of workers, and makes it easier to collect waste for recycling.
[0031] It should be noted that although the above embodiments have been described herein, this does not limit the scope of patent protection for this utility model. Therefore, any changes and modifications made to the embodiments described herein based on the innovative concept of this utility model, or equivalent structural or procedural transformations made using the content of this utility model's specification and drawings, directly or indirectly applying the above technical solutions to other related technical fields, are all included within the scope of patent protection for this utility model.
Claims
1. A core-repairing and discharge device, characterized in that, The system includes a core-repairing unit and a discharge unit. The core-repairing unit includes a fixed base, a robotic arm, and a core-repairing floating spindle. A cylinder connected to the core-repairing floating spindle is installed on one side of the fixed base. The discharge unit consists of a sand core fixing platform, a discharge slide, and a moving fixture, arranged sequentially from top to bottom. The sand core fixing platform is fixedly connected to the discharge slide. The sand core fixing platform is equipped with a support column, a limit wheel bracket, and a positioning column. A discharge hole is opened in the middle of the sand core fixing platform. A collection hole corresponding to the discharge hole is opened at the top of the discharge slide. Below the collection hole is a discharge ramp. A discharge side hole is opened at the bottom of the discharge ramp. A slide guide is provided at the bottom of the discharge slide and is slidably connected to the guide rail on the moving fixture.
2. The core repair and discharge device according to claim 1, characterized in that: Limit adjustment blocks are provided on the side of the positioning column on the sand core fixing platform.
3. The core repair and discharge device according to claim 2, characterized in that: The limiting adjustment block is provided with a clamping block, and the opening of the fixing screw hole on the clamping block corresponds to the limiting adjustment block.
4. The core-repairing and discharge device according to claim 1, characterized in that: A partition is provided below the material discharge hole of the material discharge slide, and the partition is located at the top of the material discharge slope.
5. The core repair and discharge device according to claim 4, characterized in that: There are two material discharge side holes, which are located on both sides of the material discharge slide. The top of the material discharge ramp is located at the center line of the material discharge slide.
6. The core repair and discharge device according to any one of claims 1 to 5, characterized in that: A protective cover is installed above the guide rail of the moving tool.
7. The core-repairing and discharge device according to any one of claims 1 to 5, characterized in that: The sand core fixing platform is surrounded by edge guards.
8. The core-repairing and discharge device according to any one of claims 1 to 5, characterized in that: A protective cover is installed above the guide rail of the moving tool.
9. The core-repairing and discharge device according to any one of claims 1 to 5, characterized in that: A mobile material collection trolley is provided below the material discharge side hole.