Negative pressure adsorption conveying device

Abstract

The invention relates to a negative pressure adsorption conveying device. The negative pressure adsorption conveying device is characterized in that a first gear on a connecting rod is driven to rotate by rotating a rotary knob, the first gear drives a second gear to rotate, the second gear drives a screw rod to rotate, and the screw rod drives pressure adjusting plates to move, so that the gas volume on the two sides of the pressure adjusting plates is changed, then the vacuum degree inside a hollow shaft is changed, and the negative pressure adsorption conveying device can adsorb different materials. According to the negative pressure adsorption conveying device, the structural design is ingenious, and the internal space of the hollow shaft is fully utilized, so that the negative pressure adsorption conveying device is compact in structure; meanwhile, the operation is simple and convenient due to the design, and even in the production state, the vacuum degree inside the hollow shaftcan be quickly adjusted by rotating the rotary knob; and therefore, the problems that the cost is high, the replacement is troublesome, and a production line cannot normally perform the production dueto the fact that a negative pressure fan is replaced are solved.

Description

technical field [0001] The invention relates to the technical field of die-cutting machines, in particular to a negative pressure adsorption conveying device. Background technique [0002] In the die-cutting machine, the negative pressure adsorption conveying device is generally used to absorb the material, so that the material can be attached to the lower printing material, thereby reducing the difficulty of conveying the material. The negative pressure adsorption transmission device generally includes a hollow shaft and a shaft sleeve sleeved on the hollow shaft. The hollow shaft is provided with a negative pressure air duct, and the shaft sleeve is provided with through holes. One end of the hollow shaft is connected to a negative pressure fan, and the negative pressure fan is used to generate negative pressure inside the hollow shaft. Since the external pressure is greater than the internal pressure of the shaft sleeve, the material is adsorbed to the shaft sleeve. In t...

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Problems solved by technology

In the actual use process, the negative pressure adsorption transmission device needs to adsorb different materials. Due to the vacuum degree provided by the negative pressure fan (the size of the negative pressure generated by the vacuum shaft generator, corresponding to the concept of air pressure, the higher the vacuum degree, the stronger the suction force. Large) is fixed, and different materials need to be matched with different negative pressure fans to make them adsorb to the negative pressure adsorption conveying device, resulting in poor flexibility and high cost of the negative pressure adsorbing conveying device; and in the replacement process, it is time-consuming and laborious , affecting the normal production of the production line

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