Conveying belt automatic tightening device for oil press

Abstract

The conveying belt automatic tightening device for the oil press comprises an oil press body, the oil press body comprises a conveying belt, a movable end roll shaft supporting frame is installed on the oil press body and located on the left side of the conveying belt, and roll shaft moving supports are arranged at the two ends of the movable end roll shaft supporting frame respectively. Air cylinders are arranged at the two ends of the movable end roll shaft supporting frame, cylinder bodies of the air cylinders are fixed to the movable end roll shaft supporting frame, piston rods of the air cylinders are connected with the movable end roll shafts through roll shaft moving supports, and the movable end roll shafts are in a suspended state in the movable end roll shaft supporting frame; a power end roll shaft supporting frame is further installed on the oil press body, the power end roll shaft supporting frame is located on the right side of the conveying belt, and a power end roll shaft is fixed to the power end roll shaft supporting frame. The distance between the two roll shafts is adjusted through the air cylinder, and the stroke of the air cylinder is the extensible distance of the conveying belt. Meanwhile, the tension of the roller shaft on the conveying belt is constant as the sectional area X of the inner cylinder of the cylinder and compressed air pressure.

Description

Technical Field

[0001] The invention relates to the field of hydraulic presses, and in particular to an automatic conveyor belt tightening device for hydraulic presses. Background Art

[0002] The conveyor belt in the hydraulic press is now tightened manually. Manual tightening is mostly done by screws fixing the distance of the roller. During the operation of the hydraulic press, there will be a pressure bag that constantly presses the conveyor belt downward, causing plastic extension of the conveyor belt itself. As the use time increases, the friction between the roller and the conveyor belt decreases, causing the belt to slip. At the same time, if the manual tightening is too tight, it will also cause plastic damage to the conveyor belt, greatly reducing the service life of the conveyor belt. Summary of the invention

[0003] In view of the problems existing in the prior art, the present invention provides an automatic conveyor belt tightening device for a hydraulic press to solve at least one of the above technical problems.

[0004] The technical solution of the present invention is: an automatic tightening device for a conveyor belt of a hydraulic press, comprising a hydraulic press body, characterized in that the hydraulic press body comprises a conveyor belt, a movable end roller support frame is installed on the hydraulic press body, the movable end roller support frame is located on the left side of the conveyor belt, roller movable brackets are respectively arranged at both ends of the movable end roller support frame, cylinders are arranged at both ends of the movable end roller support frame, the cylinder body of the cylinder is fixed on the movable end roller support frame, the piston rod of the cylinder is connected to the movable end roller through the roller movable bracket, and the movable end roller is in a suspended state in the movable end roller support frame;

[0005] A power end roller support frame is also installed on the main body of the oil press. The power end roller support frame is located on the right side of the transmission belt, and a power end roller is fixed on the power end roller support frame.

[0006] The present invention adjusts the distance between the two rollers by the cylinder, and the stroke of the cylinder is the extendable distance of the conveyor belt. At the same time, the pull of the roller on the conveyor belt is constant, which is the cylinder cross-sectional area in the cylinder × the compressed gas pressure. As long as the input compressed gas pressure is stable, the friction between the roller and the conveyor belt can be kept constant, and the force on the conveyor belt itself can be kept constant. At the same time, the compressibility of the gas means that the conveyor belt can also automatically adjust to reduce the distance between the two rollers when it is squeezed by the pressure bag to avoid plastic damage to the conveyor belt.

[0007] Further preferably, the cylinder is controlled by a two-position three-way solenoid valve, and the initial action of the cylinder is the extension of the piston rod.

[0008] Thereby realizing the automatic operation of the cylinder.

[0009] Further preferably, the cylinder is connected to compressed gas of 0.6Mpa, and the cylinder diameter is 50mm.

[0010] The present invention optimizes the structure of the cylinder and can be better applicable to the oil press.

[0011] Further preferably, the tension of the conveyor belt is consistent with the thrust of the piston rod of the cylinder.

[0012] Thereby maintaining the stability of the equipment.

[0013] Further preferably, grooves for accommodating the cylinder are provided at both ends of the movable end roller support frame.

[0014] It can better fix and play a limiting effect.

[0015] Further preferably, a gap is provided between the movable end roller support frame and the conveyor belt.

[0016] This prevents interference with the conveyor belt. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0018] Figure 2 It is a schematic diagram of the automatic tightening device for conveyor belts of the present invention.

[0019] In the figure: 1. Hydraulic machine body 2. Conveyor belt 3. Cylinder 4. Roller moving bracket

[0020] 5. Mobile roller shaft 6. Mobile roller shaft support frame 7. Piston rod DETAILED DESCRIPTION

[0021] The present invention will be further described below in conjunction with the accompanying drawings.

[0022] Reference Figure 1 and Figure 2 As shown, an automatic conveyor belt tightening device for a hydraulic press comprises a hydraulic press body 1, characterized in that the hydraulic press body comprises a transmission belt 2, a movable end roller support frame 6 is installed on the hydraulic press body, the movable end roller support frame is located on the left side of the transmission belt, roller movable brackets 4 are respectively arranged at both ends of the movable end roller support frame, a cylinder 3 is arranged at both ends of the movable end roller support frame, a cylinder body of the cylinder is fixed on the movable end roller support frame, a piston rod 7 of the cylinder is connected to the movable end roller 5 through the roller movable bracket, and the movable end roller is in a suspended state in the movable end roller support frame; a power end roller support frame is also installed on the hydraulic press body, the power end roller support frame is located on the right side of the transmission belt, and a power end roller is fixed on the power end roller support frame.

[0023] The present invention adjusts the distance between the two rollers by the cylinder, and the stroke of the cylinder is the extendable distance of the conveyor belt. At the same time, the pull of the roller on the conveyor belt is constant, which is the cylinder cross-sectional area in the cylinder × the compressed gas pressure. As long as the input compressed gas pressure is stable, the friction between the roller and the conveyor belt can be kept constant, and the force on the conveyor belt itself can be kept constant. At the same time, the compressibility of the gas means that the conveyor belt can also automatically adjust to reduce the distance between the two rollers when it is squeezed by the pressure bag to avoid plastic damage to the conveyor belt.

[0024] Further preferably, the cylinder is controlled by a two-position three-way solenoid valve, and the initial action of the cylinder is the extension of the piston rod, thereby realizing the automatic operation of the cylinder.

[0025] More preferably, the cylinder is connected to the compressed gas of 0.6Mpa, and the cylinder diameter of the cylinder is 50mm. The present invention optimizes the structure of the cylinder and can be better applied to the hydraulic press.

[0026] Further preferably, the tension of the conveyor belt is consistent with the thrust of the piston rod of the cylinder, thereby maintaining the stability of the equipment.

[0027] Further preferably, grooves for accommodating the cylinder are provided at both ends of the movable end roller support frame, which can better fix and limit the position.

[0028] Further preferably, a gap is provided between the movable end roller support frame and the conveyor belt to prevent interference with the conveyor belt.

[0029] The above are only preferred embodiments of the present invention. It should be pointed out that, for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the principles of the present invention. These improvements and modifications should also be regarded as the scope of protection of the present invention.

Claims

1. An automatic conveyor belt tightening device for a hydraulic press, comprising a hydraulic press body, characterized in that: The main body of the hydraulic press includes a transmission belt, a movable roller support frame is installed on the main body of the hydraulic press, the movable roller support frame is located on the left side of the transmission belt, two ends of the movable roller support frame are respectively provided with roller movable brackets, two ends of the movable roller support frame are provided with cylinders, the cylinder body of the cylinder is fixed on the movable roller support frame, the piston rod of the cylinder is connected to the movable roller through the roller movable bracket, and the movable roller is in a suspended state in the movable roller support frame; A power end roller support frame is also installed on the main body of the oil press. The power end roller support frame is located on the right side of the transmission belt, and a power end roller is fixed on the power end roller support frame.

2. The automatic tightening device for a conveyor belt of a hydraulic press according to claim 1, characterized in that: The cylinder is controlled by a two-position three-way solenoid valve, and the initial action of the cylinder is that the piston rod extends.

3. The automatic tightening device for a conveyor belt of a hydraulic press according to claim 2, characterized in that: The cylinder is connected to compressed gas at 0.6Mpa, and the cylinder diameter of the cylinder is 50mm.

4. The automatic tightening device for a conveyor belt of a hydraulic press according to claim 2, characterized in that: The tension of the conveyor belt is consistent with the thrust of the piston rod of the cylinder.

5. The automatic tightening device for a conveyor belt of a hydraulic press according to claim 1, characterized in that: Both ends of the movable end roller support frame are provided with grooves for accommodating the cylinder.

6. The automatic tightening device for a conveyor belt of a hydraulic press according to claim 1, characterized in that: A gap is provided between the movable end roller support frame and the conveyor belt.

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