A quenching furnace height limiting device

Abstract

The utility model discloses a utility model belongs to heat treatment equipment technical field, more specifically relates to a quenching furnace height limiting device, including the support of quenching furnace entrance front, the support has the gate and is lifted and connected, the gate is located the top of conveyer belt, be connected with drive mechanism on the gate, the both sides of gate width direction extend to the edge of conveyer belt, be provided with counting sensor between the gate and quenching furnace entrance, need no longer through manual adjustment, and the efficiency is high and the gate lifting precision is high.

Description

Technical Field

[0001] This utility model belongs to the technical field of heat treatment equipment, and more specifically relates to a height limiting device for a quenching furnace. Background Technology

[0002] In the past, there were no mandatory requirements for output limits in continuous production heat treatment equipment. Users would maximize the output, even exceeding the original capacity of the equipment, resulting in unstable heat treatment quality of workpieces and quality problems such as decarburization and poor hardness. Therefore, in order to ensure product quality and comply with the SQC quality standards of each factory, it is necessary to strictly control the hourly output to prevent overproduction.

[0003] The patent technology disclosed in CN220265753U, entitled "A Thickness Limiting Detection Device for Quenching Furnace Feeding", prevents workpieces from entering the quenching furnace with the conveyor belt in a stacked state by using a dual operation of a limiting and blocking mechanism and an alarm detection mechanism. This prevents unevenness, ensures that each workpiece is heated evenly, and thus guarantees the quality of the final product.

[0004] However, the adjustment of its limiting stop mechanism is achieved by loosening the adjusting bolt, and fixing it requires tightening the adjusting bolt. This requires manual operation, which not only results in low adjustment efficiency, but also poor accuracy in adjusting the height of the stop plate. It requires manual measurement using measuring tools or manual comparison of the height using parts, which further reduces the adjustment efficiency. Utility Model Content

[0005] To address the shortcomings of existing technologies, this utility model provides a height limiting device for quenching furnaces, which eliminates the need for manual adjustment, resulting in high efficiency and high gate lifting accuracy.

[0006] To achieve the above objectives, the present invention provides the following technical solution: a height limiting device for a quenching furnace, comprising a support located in front of the quenching furnace inlet, a gate connected to the support in a lifting manner, the gate being located above the conveyor belt, a drive mechanism being connected to the gate, the two sides of the gate extending in the width direction to the edge of the conveyor belt, and a counting sensor being provided between the gate and the quenching furnace inlet.

[0007] Furthermore, a baffle bracket is vertically connected to the side of the gate facing the quenching furnace. A baffle is rotatably mounted on the baffle bracket. A torsion spring is provided between the rotating shaft of the baffle and the baffle bracket. When the baffle rotates towards the quenching furnace, it will twist the torsion spring to generate torsional elastic force. An angle sensor is provided on the baffle bracket, and the angle sensor is connected to the rotating shaft of the baffle.

[0008] Furthermore, a limiting block is provided on the rotating shaft of the baffle, and a limiting groove is provided on the baffle support. The limiting block is located in the limiting groove, limiting the maximum angle at which the baffle rotates toward the quenching furnace.

[0009] Furthermore, a slide rail and slide groove structure is provided between the baffle bracket and the gate.

[0010] Furthermore, a guide rod is provided on the gate, and the guide rod is slidably connected to the bracket.

[0011] Compared with the prior art, the beneficial effects of this utility model are: the drive mechanism automatically drives the gate to lift and lower, limiting the height of the stacked parts on the conveyor belt. If the stacked parts exceed the limit height, the gate will block the parts that are higher than the limit height, causing them to fall from the stacked state onto the conveyor belt. When the parts pass through the counting sensor, they will be counted to ensure that the parts enter the quenching furnace in a timely and quantitative manner. If too many parts enter, the gate will be completely closed to prevent the parts on the conveyor belt from continuing to be sent into the quenching furnace. There is no need to manually adjust, which is highly efficient and the gate lifting accuracy is high. Attached Figure Description

[0012] Figure 1 This is a schematic diagram of the height limiting device for the quenching furnace of this utility model; Figure 2 for Figure 1 Enlarged view of the middle section.

[0013] Reference numerals: 1. Quenching furnace; 2. Gate; 3. Conveyor belt; 4. Drive mechanism; 5. Counting sensor; 6. Baffle bracket; 7. Baffle; 8. Limiting block; 9. Limiting groove; 10. Guide rod; 11. Bracket. Detailed Implementation

[0014] In the description of this utility model, it should be noted that the directional terms such as "center", "horizontal (X)", "longitudinal (Y)", "vertical (Z)", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", and "counterclockwise" indicate the orientation and 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 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. They should not be construed as limiting the specific protection scope of this utility model.

[0015] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features. Thus, the use of "first" and "second" to define a feature may explicitly or implicitly include one or more of that feature. In the description of this utility model, "several" or "a number" means two or more, unless otherwise explicitly specified.

[0016] Reference Figure 1 and Figure 2 The present invention will be further described below.

[0017] A height limiting device for a quenching furnace includes a support 11 located in front of the inlet of the quenching furnace 1. A gate 2 is vertically connected to the support 11. The gate 2 is located above the conveyor belt 3. A drive mechanism 4 is connected to the gate 2. The two sides of the gate 2 extend to the edge of the conveyor belt 3 in the width direction. A counting sensor 5 is provided between the gate 2 and the inlet of the quenching furnace 1.

[0018] like Figure 1 and Figure 2 As shown, the drive mechanism 4 automatically raises and lowers the gate 2 to limit the height of the stacked parts on the conveyor belt 3. If the stacked parts exceed the limited height, the gate 2 will block the parts above the limited height, causing them to fall from the stack onto the conveyor belt 3. When parts pass the counting sensor 5, they are counted to ensure that parts enter the quenching furnace 1 in a timely and quantitative manner. If too many parts enter, the gate 2 will close completely to prevent more parts from being fed into the quenching furnace 1. No manual adjustment is required, resulting in high efficiency and high gate 2 lifting accuracy.

[0019] Specifically, the drive mechanism 4 can be a servo-electric telescopic rod or a cylinder with multiple strokes, etc.

[0020] like Figure 1 As shown in the preferred embodiment, the gate 2 is connected to a baffle bracket 6 that moves up and down on the side facing the quenching furnace 1. A baffle 7 is rotatably mounted on the baffle bracket 6. A torsion spring is provided between the rotating shaft of the baffle 7 and the baffle bracket 6. When the baffle 7 rotates toward the quenching furnace 1, it will torsion the torsion spring and generate a torsional elastic force. An angle sensor is provided on the baffle bracket 6 and the angle sensor is connected to the rotating shaft of the baffle 7.

[0021] Specifically, when the baffle bracket 6 descends, most of the baffle 7 will extend beyond the lower end of the gate 2, allowing for height restriction. When a part exceeding the height limit contacts the baffle 7, the baffle 7 rotates under force, and a torsion spring generates a torsional force until the stacked part is pushed off, then it resets. Essentially, the baffle 7 acts as an elastic baffle, allowing a part exceeding the height limit but stuck to temporarily pass through the gate 2. An angle sensor detects the maximum rotation angle of the baffle 7, analyzing the data to determine whether the stuck part has passed, thus enabling timely shutdown and allowing operators to handle the stuck part.

[0022] Specifically, a cylinder is provided on the baffle bracket 6 to drive the baffle bracket 6 to rise and fall.

[0023] like Figure 2As shown in the preferred embodiment, a limiting block 8 is provided on the rotating shaft of the baffle 7, and a limiting groove 9 is provided on the baffle support 6. The limiting block 8 is located within the limiting groove 9, limiting the maximum angle of rotation of the baffle 7 toward the quenching furnace 1. Specifically, the maximum rotation amplitude of the baffle 7 is flush with the lower end surface of the baffle 7.

[0024] like Figure 2 As shown in this example, preferably, a slide rail and slide groove structure is provided between the baffle bracket 6 and the gate 2 to improve the stability of the baffle bracket 6 in raising and lowering.

[0025] like Figure 1 As shown in this example, preferably, the gate 2 is provided with a guide rod 10, which is slidably connected to the bracket 11 to improve the stability of the gate 2 in raising and lowering.

[0026] The above description is merely a preferred embodiment of this utility model. The protection scope of this utility model is not limited to the above embodiments. All technical solutions falling within the scope of this utility model's concept are protected by this utility model. It should be noted that for those skilled in the art, any improvements and modifications made without departing from the principle of this utility model should also be considered within the protection scope of this utility model.

Claims

1. A height limiting device for a quenching furnace, characterized in that: The system includes a support frame located in front of the quenching furnace inlet, a gate connected to the support frame in a lifting manner, the gate being located above the conveyor belt, a drive mechanism being connected to the gate, the gate extending to the edges of the conveyor belt on both sides in the width direction, and a counting sensor being installed between the gate and the quenching furnace inlet.

2. The height limiting device for a quenching furnace according to claim 1, characterized in that: A baffle bracket is vertically connected to the side of the gate facing the quenching furnace. A baffle is rotatably mounted on the baffle bracket. A torsion spring is installed between the rotating shaft of the baffle and the baffle bracket. When the baffle rotates towards the quenching furnace, it will twist the torsion spring to generate torsional elastic force. An angle sensor is installed on the baffle bracket and is connected to the rotating shaft of the baffle.

3. The height limiting device for a quenching furnace according to claim 2, characterized in that: A limiting block is provided on the rotating shaft of the baffle, and a limiting groove is provided on the baffle support. The limiting block is located in the limiting groove, which limits the maximum angle at which the baffle rotates toward the quenching furnace.

4. The height limiting device for a quenching furnace according to claim 2, characterized in that: A sliding rail and groove structure is provided between the baffle support and the gate.

5. The height limiting device for a quenching furnace according to claim 1, characterized in that: The gate is equipped with a guide rod, which is slidably connected to the support.

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