A scrap thickness grading tool
Patent Information
- Application Number
- CN202521977846.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-09-15
- Publication Date
- 2026-10-09
- Estimated Expiration
- 2035-09-15
AI Technical Summary
[0003]然而，这种方法存在明显缺陷：一方面，游标卡尺测量需经过“卡紧-读数-换算”多个步骤，操作繁琐，耗时较长，难以适应废钢处理现场批量、快速定级的需求
与传统游标卡尺测量相比，该工装的核心优势在于去测量化，省去了游标卡尺的卡紧、读数、换算步骤，仅需“放料-观察指示”两步操作，单块废钢定级时间从数十秒缩短至1-2秒，大幅提高批量处理效率；无需操作人员掌握游标卡尺的读数技巧，仅通过指示块颜色即可判断等级，降低对操作技能的依赖，减少人为误差；不同等级的指示块采用不同颜色，视觉区分度高，即使在嘈杂的废钢处理现场，也能快速识别结果，避免误判。
Smart Images
Figure CN224838759U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of scrap steel processing, and specifically to a tooling for determining the thickness of scrap steel. Background Technology
[0002] In the scrap steel recycling process, the thickness of the scrap steel is a key indicator for grading and classification, directly affecting subsequent smelting efficiency and recycling value. Currently, the industry commonly uses vernier calipers to measure the thickness of scrap steel: operators need to clamp the vernier calipers at both ends of the scrap steel, determine the thickness by reading the difference between the scale readings of the main scale and the vernier scale, and then determine the type of scrap steel by comparing it with the grading standards.
[0003] However, this method has obvious drawbacks: on the one hand, the vernier caliper measurement requires multiple steps of "clamping-reading-conversion", which is cumbersome and time-consuming, making it difficult to meet the needs of batch and rapid grading at the scrap steel processing site.
[0004] Therefore, there is an urgent need for a tool that can quickly and intuitively complete the thickness grading of scrap steel to solve the problems of low efficiency and high dependence on operating skills in existing measurement methods. Utility Model Content
[0005] This utility model provides a tooling for determining the thickness of scrap steel in order to solve the problems of the prior art.
[0006] The purpose of this utility model can be achieved through the following technical solution: A scrap steel thickness grading fixture includes a main body, in which a row of indicator blocks of different colors are inserted, from left to right: high-quality heavy scrap indicator block, heavy scrap indicator block, medium scrap indicator block, and ordinary scrap steel indicator block; each indicator block has a specific bottom and top distance from the bottom of the main body according to the corresponding scrap steel thickness grade; a cavity for accommodating the tested scrap steel is provided on the left side of the main body, an elastic pressure rod is provided at the upper end of the cavity, and an indicator rod is provided on the right side of the bottom of the elastic pressure rod, which can indicate the corresponding indicator block.
[0007] Further improvements include: the bottom of the high-quality heavy scrap indicator block is 8mm from the bottom of the main body; the bottom of the heavy scrap indicator block is 6mm from the bottom of the main body, and the top of the heavy scrap indicator block is 8mm from the bottom of the main body; the bottom of the medium scrap indicator block is 4mm from the bottom of the main body, and the top of the medium scrap indicator block is 6mm from the bottom of the main body; the bottom of the ordinary scrap steel indicator block is 2mm from the bottom of the main body, and the top of the ordinary scrap steel indicator block is 4mm from the bottom of the main body; and the indicator rod can indicate the high-quality heavy scrap indicator block, the heavy scrap indicator block, the medium scrap indicator block, and the ordinary scrap steel indicator block.
[0008] In a further improvement, the elastic pressure bar includes a rod head, a rod body, a pressure block, and a spring. The rod body passes through the main body into the cavity. The pressure block is fixed to the lower end of the rod body. The rod head is threaded to the top of the rod body and located above the main body. The spring is sleeved on the rod body and located in the cavity. The left side of the indicator rod is threaded to the front end of the pressure block.
[0009] In a further improvement, the center line of the indicator arrow on the right side of the indicator rod is aligned with the bottom surface of the pressure block.
[0010] Further improvements include adapting the size of the cavity to the dimensions of common scrap steel.
[0011] In a further improvement, the right side of the main body is provided with four sets of downward sliding grooves at intervals. The high-quality heavy waste indicator block, heavy waste indicator block, medium waste indicator block, and ordinary scrap steel indicator block are sequentially and slidably arranged in the corresponding sliding grooves at intervals. The rear side of the main body is provided with four sets of fixing bolts at intervals. The high-quality heavy waste indicator block, heavy waste indicator block, medium waste indicator block, and ordinary scrap steel indicator block are fixed in the sliding grooves by their respective fixing bolts.
[0012] Compared with existing technologies, the beneficial effects of this utility model's scrap steel thickness grading tool are as follows: Compared to traditional vernier caliper measurement, the core advantage of this tooling lies in its elimination of measurement steps. It eliminates the need for clamping, reading, and conversion of vernier calipers, requiring only two steps: "feeding material and observing the indicator." The grading time for a single piece of scrap steel is reduced from tens of seconds to 1-2 seconds, significantly improving batch processing efficiency. Operators do not need to master vernier caliper reading skills; the grade can be determined simply by the color of the indicator block, reducing reliance on operational skills and minimizing human error. Different grades use different colors for the indicator blocks, providing high visual differentiation. Even in noisy scrap steel processing sites, results can be quickly identified, avoiding misjudgments. Attached Figure Description
[0013] Figure 1 This is a structural schematic diagram of the present invention. Figure 2 This is a partial cross-sectional view of the present invention. In the diagram, 1-main body, 11-slide groove, 12-fixing bolt, 2-high-quality heavy waste indicator block, 3-heavy waste indicator block, 4-medium waste indicator block, 5-ordinary waste steel indicator block, 6-cavity, 7-elastic pressure rod, 71-rod head, 72-rod body, 73-pressure block, 74-spring, 8-indicator rod, 81-indicator arrow. Detailed Implementation
[0014] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model; unless otherwise expressly specified and limited, the terms "installed," "connected," and "joined" should be interpreted broadly, for example, they can refer to fixed connections or detachable connections, etc. For those skilled in the art, the specific meaning of the above terms in this utility model can be understood according to the specific circumstances.
[0015] The following describes the embodiments and appendices. Figures 1-2 The technical solution of this utility model will be further described below.
[0016] Example 1 A scrap steel thickness grading fixture includes a main body 1, in which a row of indicator blocks of different colors are inserted, from left to right: high-quality heavy scrap indicator block 2, heavy scrap indicator block 3, medium scrap indicator block 4, and ordinary scrap steel indicator block 5. Each indicator block has a specific bottom and top distance from the bottom of the main body 1 according to the corresponding scrap steel thickness grade. A cavity 6 for accommodating the tested scrap steel is provided on the left side of the main body 1. An elastic pressure rod 7 is provided at the upper end of the cavity 6. An indicator rod 8 is provided on the bottom right side of the elastic pressure rod 7. The indicator rod 8 can indicate the corresponding indicator block.
[0017] like Figures 1-2 As shown, the working principle of this utility model is as follows: The main body of the tooling has a cavity on the left side for placing the scrap steel to be tested. The bottom of the scrap steel is in contact with the bottom of the main body (i.e., the thickness of the scrap steel = the distance from the top of the scrap steel to the bottom of the main body). Under the action of elastic force, the elastic pressure bar at the upper end of the cavity keeps the pressure block at its bottom in close contact with the top of the scrap steel. Therefore, the distance from the bottom surface of the pressure block to the bottom of the main body is equal to the thickness of the scrap steel. The indicator rod connected to the right side of the pressure block moves synchronously with the pressure block, and its position is consistent with the bottom surface of the pressure block; Different colored indicator blocks inserted inside the main body each correspond to a specific thickness range (based on the distance between the bottom and top of the indicator block and the bottom of the main body): when scrap steel is placed into the cavity, the color and range of the indicator block pointed to by the indicator rod directly reflect the grade range of the scrap steel thickness, without the need for additional measurement or reading.
[0018] Compared to traditional vernier caliper measurement, the core advantage of this tooling lies in its elimination of measurement steps. It eliminates the need for clamping, reading, and conversion of vernier calipers, requiring only two steps: "feeding material and observing the indicator." The grading time for a single piece of scrap steel is reduced from tens of seconds to 1-2 seconds, significantly improving batch processing efficiency. Operators do not need to master vernier caliper reading skills; the grade can be determined simply by the color of the indicator block, reducing reliance on operational skills and minimizing human error. Different grades use different colors for the indicator blocks, providing high visual differentiation. Even in noisy scrap steel processing sites, results can be quickly identified, avoiding misjudgments.
[0019] As a further preferred embodiment, the bottom of the high-quality heavy scrap indicator block 2 is 8mm from the bottom of the main body 1; the bottom of the heavy scrap indicator block 3 is 6mm from the bottom of the main body 1, and the top of the heavy scrap indicator block 3 is 8mm from the bottom of the main body 1; the bottom of the medium scrap indicator block 4 is 4mm from the bottom of the main body 1, and the top of the medium scrap indicator block 4 is 6mm from the bottom of the main body 1; the bottom of the ordinary scrap steel indicator block 5 is 2mm from the bottom of the main body 1, and the top of the ordinary scrap steel indicator block 5 is 4mm from the bottom of the main body 1. The indicator rod 8 can indicate the high-quality heavy scrap indicator block 2, the heavy scrap indicator block 3, the medium scrap indicator block 4, and the ordinary scrap steel indicator block 5.
[0020] The thickness grades of scrap steel (ordinary scrap, medium scrap, heavy scrap, and premium heavy scrap) are linked to the spatial boundaries of indicator blocks: the bottom of the premium heavy scrap indicator block corresponds to 8mm (i.e., the indicator point is to this block when the thickness is ≥8mm); the bottom (6mm) and top (8mm) of the heavy scrap indicator block correspond to 6-8mm; the bottom (4mm) and top (6mm) of the medium scrap indicator block correspond to 4-6mm; and the bottom (2mm) and top (4mm) of the ordinary scrap steel indicator block correspond to 2-4mm. By clearly defining the upper and lower boundaries of each indicator block, the indicator rod points precisely to the indicated block when the scrap steel thickness falls within a certain range. This clarifies the critical thickness values for each grade, eliminates ambiguities in grade classification, and ensures that different operators can make consistent judgments about scrap steel of the same thickness.
[0021] As a further preferred embodiment, the elastic pressure rod 7 includes a rod head 71, a rod body 72, a pressure block 73, and a spring 74. The rod body 72 passes through the main body 1 into the cavity 6. The pressure block 73 is fixed to the lower end of the rod body 72. The rod head 71 is threaded to the top of the rod body 72 and located above the main body 1. The spring 74 is sleeved on the rod body 72 and located inside the cavity 6. The left side of the indicator rod 8 is threaded to the front end of the pressure block 73. The elastic pressure rod consists of a rod head, a rod body, a pressure block, and a spring: the spring is sleeved on the rod body and applies a downward elastic force to the pressure block in its natural state; the rod body passes through the main body, allowing the pressure block to move up and down along the cavity; the rod head is threaded to the rod body, allowing for fine adjustment of the initial height of the pressure block. When scrap steel is placed into the cavity, the elastic force of the spring drives the pressure block to move downward until the bottom surface of the pressure block is in close contact with the top of the scrap steel. At this point, the height of the pressure block is entirely determined by the thickness of the scrap steel (pressure block height = scrap steel thickness).
[0022] As a further preferred embodiment, the center line of the right-side indicator arrow 81 of the indicator rod 8 is collinear with the bottom surface of the pressure block 73. The center line of the indicator arrow of the indicator rod is at the same horizontal height as the bottom surface of the pressure block: since the height of the bottom surface of the pressure block is equal to the thickness of the scrap steel (the distance from the bottom surface of the pressure block to the bottom of the main body = the thickness of the scrap steel), the height of the center line of the arrow is also equal to the thickness of the scrap steel. At this time, the position of the indicator block pointed to by the arrow (such as the middle, top, or bottom of an indicator block) directly corresponds to the specific position of the scrap steel thickness within that grade range.
[0023] As a further preferred embodiment, the size of the cavity 6 is adapted to the size of common scrap steel, ensuring that the scrap steel can be stably placed after being put into the cavity.
[0024] As a further preferred embodiment, the right side of the main body 1 is provided with four sets of downward sliding grooves 11 at intervals. The high-quality heavy scrap indicator block 2, heavy scrap indicator block 3, medium scrap indicator block 4, and ordinary scrap steel indicator block 5 are sequentially and slidably arranged in the corresponding sliding grooves 11 at intervals. The rear side of the main body 1 is provided with four sets of fixing bolts 12 at intervals, which fix the high-quality heavy scrap indicator block 2, heavy scrap indicator block 3, medium scrap indicator block 4, and ordinary scrap steel indicator block 5 in the sliding grooves 11. The four sets of sliding grooves on the right side of the main body allow the indicator blocks to slide up and down along the grooves, adjusting the distance between their bottom and top and the bottom of the main body. Each set of indicator blocks corresponds to a set of fixing bolts. After sliding to the target position, tightening the bolts locks the indicator block. This structure allows the boundary of the indicator block to be adjusted according to the scrap steel grading standards of different regions and scenarios (e.g., in some scenarios, heavy scrap is defined as 5-7mm). Enhance the versatility of the tooling, allowing it to adapt to different grading standards without replacing the entire tooling, thus reducing equipment investment costs; facilitate later maintenance and calibration (e.g., if the indicator block position shifts after long-term use, the bolts can be loosened for readjustment), and extend the service life of the tooling.
[0025] The preferred embodiments of this utility model have been described in detail above. It should be understood that those skilled in the art can make numerous modifications and variations based on the concept of this utility model without creative effort. Therefore, all technical solutions that can be obtained by those skilled in the art based on the concept of this utility model through logical analysis, reasoning, or limited experimentation on the basis of existing technology should be within the scope of protection defined by the claims.
Claims
1. A tooling for grading the thickness of scrap steel, characterized in that: The device includes a main body, inside which are inserted a row of indicator blocks of different colors, from left to right: high-quality heavy scrap indicator block, heavy scrap indicator block, medium scrap indicator block, and ordinary scrap steel indicator block. Each indicator block has specific bottom and top dimensions relative to the bottom of the main body according to the corresponding scrap steel thickness grade. On the left side of the main body, there is a cavity that can accommodate the test scrap steel. An elastic pressure rod is provided at the upper end of the cavity, and an indicator rod is provided on the right side of the bottom of the elastic pressure rod. The indicator rod can indicate the corresponding indicator block.
2. The scrap steel thickness grading tooling according to claim 1, characterized in that: The bottom of the high-quality heavy scrap indicator block is 8mm from the bottom of the main body; the bottom of the heavy scrap indicator block is 6mm from the bottom of the main body, and the top of the heavy scrap indicator block is 8mm from the bottom of the main body; the bottom of the medium scrap indicator block is 4mm from the bottom of the main body, and the top of the medium scrap indicator block is 6mm from the bottom of the main body; the bottom of the ordinary scrap steel indicator block is 2mm from the bottom of the main body, and the top of the ordinary scrap steel indicator block is 4mm from the bottom of the main body. The indicator rod can indicate the high-quality heavy scrap indicator block, the heavy scrap indicator block, the medium scrap indicator block, and the ordinary scrap steel indicator block.
3. The scrap steel thickness grading tooling according to claim 1, characterized in that: The elastic pressure bar includes a rod head, a rod body, a pressure block, and a spring. The rod body passes through the main body into the cavity. The pressure block is fixed to the lower end of the rod body. The rod head is threaded to the top of the rod body and located above the main body. The spring is sleeved on the rod body and located in the cavity. The left side of the indicator rod is threaded to the front end of the pressure block.
4. The scrap steel thickness grading tooling according to claim 3, characterized in that: The center line of the right-side indicator arrow of the indicator rod is collinear with the bottom surface of the pressure block.
5. The scrap steel thickness grading tooling according to claim 1, characterized in that: The size of the cavity is adapted to the size of common scrap steel.
6. The scrap steel thickness grading tooling according to claim 1, characterized in that: The right side of the main body is provided with four sets of downward sliding grooves at intervals. The high-quality heavy waste indicator block, heavy waste indicator block, medium waste indicator block, and ordinary scrap steel indicator block are slidably arranged in the corresponding sliding grooves at intervals. The rear side of the main body is provided with four sets of fixing bolts at intervals. The high-quality heavy waste indicator block, heavy waste indicator block, medium waste indicator block, and ordinary scrap steel indicator block are fixed in the sliding grooves by their respective fixing bolts.