A cotton bale self-adaptive clamping device

Abstract

The utility model provides a kind of for cotton bale self-adaptive clamping device, including fixed frame, linear guide square tube is equipped on the fixed frame, the both ends of the linear guide square tube are respectively fixed with clamping plate, the clamping plate of both ends is oppositely arranged and each is sequentially connected with electric push rod and steel plate connecting piece;Connecting screw rod is further provided between the steel plate connecting piece, the utility model realizes when cotton bale (or similar scene) is clamped, device center and cotton bale center are within certain distance offset, still can clamp cotton bale.

Description

Technical Field

[0001] This utility model relates to a cotton bale clamping device, specifically an adaptive clamping device for cotton bales, suitable for processes such as weighing, sampling, conveying, and loading of cotton bales. Background Technology

[0002] Currently in China, the warehousing and outbound management of imported and exported cotton and domestic cotton, as well as the weight inspection and sampling processes during trade settlement, generally employ equipment such as winch stacker cranes or cotton bale transfer and unpacking trolleys.

[0003] The cotton bale transfer and unpacking trolley uses clamping cylinders and clamping plates to secure the cotton bales. Specifically, clamping cylinders at both ends of the lifting plate push the clamping plates to clamp the cotton bales, ensuring stability during the transfer process.

[0004] The winch-type stacker crane uses a clamping device that automatically clamps and releases the bales via connecting rods and compression springs. Its key feature is that it automatically locks the bales during lifting and automatically releases them during descent, reducing manual operation steps.

[0005] Regardless of the device used, when gripping a cotton bale (or similar scenario), if the center of the device is offset from the center of the cotton bale by a certain distance, neither of the two devices can grip the cotton bale well, and problems such as the cotton bale falling off may occur. Utility Model Content

[0006] The purpose of this invention is to provide an adaptive clamping device for cotton bales, which enables the device to clamp cotton bales even when the center of the device is offset from the center of the cotton bales by a certain distance when clamping cotton bales (or similar scenarios).

[0007] To achieve the above objectives, the present invention adopts the following technical solution: a self-adaptive clamping device for cotton bales, comprising a fixed frame, a linear guide square tube on the fixed frame, clamping plates fixed at both ends of the linear guide square tube, the clamping plates at both ends being arranged opposite to each other and each being sequentially connected to an electric push rod and a steel plate connector; a connecting screw is also provided between the steel plate connectors.

[0008] Furthermore, the linear guide square tube includes two transverse telescopic square tubes and two longitudinal fixed square tubes perpendicular to the two transverse telescopic square tubes.

[0009] Furthermore, the fixed frame includes a set of transversely fixed square tubes, and two transversely telescopic square tubes with linear guide square tubes are disposed inside the transversely fixed square tubes.

[0010] Furthermore, clamps are fixed to both longitudinal fixed square tubes of the linear guide square tube.

[0011] Furthermore, the horizontally fixed square tube is provided with a guide groove and a limiting plate.

[0012] Furthermore, a steel plate connector is provided on the guide groove, and the steel plate connector slides along the guide groove.

[0013] Furthermore, a sensor is provided at one end of the electric push rod, and the other end is connected to a steel plate connector.

[0014] Compared with existing technologies, the advantages of this invention are: reliable and stable clamping can still be achieved even when there is a certain offset between the center of the cotton bale and the geometric center of the device. This adaptive function relies on the lateral floating capability of the two clamping plates within the fixed frame. That is, during the clamping action, the electric push rod drives the two clamping plates to move inward. When one clamping plate contacts the workpiece first due to the eccentricity of the cotton bale, that clamping plate can generate a small horizontal displacement within the frame, allowing the other clamping plate to continue moving forward, thereby achieving automatic compensation for the eccentricity of the cotton bale. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the overall structure of the device of this utility model; Figure 2 This is a schematic diagram of the state structure of the device in the clamping state. Figure 3 This is a schematic diagram of the state structure of the device in the reset state. Figure 4 This is a schematic diagram of the first position state structure of the device under eccentric conditions. Figure 5 This is a schematic diagram of the second position state structure of the device under eccentric conditions. Reference numerals: 1-Fixed frame; 2-Linear guide square tube; 3-Clamping plate; 4-Electric push rod; 5-Steel plate connector; 6-Connecting screw; 7-Guide groove; 8-Sensor; 9-Limiting plate. Detailed Implementation

[0016] The preferred embodiments of the present invention will be further described below with reference to the accompanying drawings. The following embodiments are for illustrative purposes only and are not intended to limit the scope of the invention.

[0017] like Figure 1-2 As shown, an adaptive clamping device for cotton bales includes a fixed frame 1, on which a linear guide square tube 2 is provided. Clamping plates 3 are fixed at both ends of the linear guide square tube 2. The clamping plates 3 at both ends are arranged opposite to each other and are connected in sequence to an electric push rod 4 and a steel plate connector 5. A connecting screw 6 is also provided between the steel plate connectors 5.

[0018] Specifically: The linear guide square tube 2 includes two transverse telescopic square tubes and two longitudinal fixed square tubes perpendicular to the two transverse telescopic square tubes. The fixed frame 1 includes a set of transverse fixed square tubes 10. The two transverse telescopic square tubes of the linear guide square tube 2 are arranged inside the transverse fixed square tubes 10. Clamping plates 3 are fixed on the two longitudinal fixed square tubes of the linear guide square tube 2. The transverse fixed square tubes 10 are provided with guide grooves 7 and limiting plates 9. Steel plate connectors 5 are provided on the guide grooves 7. The steel plate connectors 5 slide along the guide grooves 7. A sensor 8 is also provided at one end of the electric push rod 4, and the other end is connected to the steel plate connectors 5.

[0019] In operation: Two movable clamping plates 3 retract inward under the action of two transverse telescopic square tubes of the linear guide square tube 2. Each clamping plate is sequentially connected to an electric push rod 4 and a steel plate connector 5. The two clamping plates are linked or finely adjusted via connecting screws 6 to achieve synchronous clamping and spacing adjustment on both sides. During the clamping process, when the two clamping plates 3 move simultaneously towards the cotton bale, they can automatically compensate for the cotton bale's positional shift by sliding horizontally within the fixed frame 1 through the transverse fixed square tube 10. This ensures effective clamping even if there is a deviation between the clamping center and the cotton bale center, guaranteeing the stability and adaptability of the clamping process. The contact surfaces between the clamping plates 3 and the cotton bale are typically treated with anti-slip material to prevent slippage or localized damage to the sample during clamping.

[0020] like Figure 3-5 As shown, during the opening and resetting of the device, the outermost clamping plate 3 is first restricted by the limiting plate 9 and stops moving. Then, the electric push rod 4 continues to drive the other clamping plate 3 outwards until the clamping plate 3 is fully opened, achieving rapid resetting. The guide groove 7 and the limiting plate 9 precisely limit the clamping stroke and prevent over-extension, ensuring the safety and reliability of the fixture's movement. The sensor 8 is located at one end of the electric push rod 4 to detect the position of the clamping plate 3, the clamping force, or the sample's positioning status, and feeds back signals to the control unit, achieving closed-loop control and safety protection. This structural design ensures that the device maintains consistent sample position, uniform force, and stable clamping during testing, improving efficiency and the reliability of test results.

[0021] During the opening or resetting process, due to the setting of the limiting plate 9, the outermost clamping plate 3 will touch the limiting plate 9 first and stop moving. Then the electric push rod 4 continues to extend and drive the other clamping plate 3 to the fully opened limit position to realize the automatic resetting action.

Claims

1. A self-adaptive clamping device for cotton bales, comprising a fixed frame (1), characterized in that, The fixed frame (1) is provided with a linear guide square tube (2), and the two ends of the linear guide square tube (2) are respectively fixed with clamps (3). The clamps (3) at both ends are arranged opposite to each other and are connected in sequence with an electric push rod (4) and a steel plate connector (5); a connecting screw (6) is also provided between the steel plate connectors (5).

2. The adaptive clamping device for cotton bales according to claim 1, characterized in that, The linear guide square tube (2) includes two transverse telescopic square tubes and two longitudinal fixed square tubes perpendicular to the two transverse telescopic square tubes.

3. The adaptive clamping device for cotton bales according to claim 2, characterized in that, The fixed frame (1) includes a set of horizontal fixed square tubes (10), and two horizontal telescopic square tubes of linear guide square tubes (2) are provided inside the horizontal fixed square tubes (10).

4. The adaptive clamping device for cotton bales according to claim 2, characterized in that, The linear guide square tube (2) has clamps (3) fixed on both of its longitudinal fixed square tubes.

5. A self-adaptive clamping device for cotton bales according to claim 3, characterized in that, The horizontally fixed square tube (10) is provided with a guide groove (7) and a limiting plate (9).

6. The adaptive clamping device for cotton bales according to claim 5, characterized in that, A steel plate connector (5) is provided on the guide groove (7), and the steel plate connector (5) slides along the guide groove (7).

7. The adaptive clamping device for cotton bales according to claim 1, characterized in that, A sensor (8) is also provided at one end of the electric push rod (4), and the other end is connected to a steel plate connector (5).

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