Surpass Industry Co., Ltd.

Yukinobu Imai

Kazuki Hirai

Hiroshi Imai

Hiroki Igarashi

Daisuke Kanazawa

Provided is a tube pump system which includes: a pair of roller units which are rotated around an axis line from a closing position to a releasing position; a pair of drive units which are configured to respectively rotate the pair of roller units; a control unit which is configured to control each of the pair of drive units; and a pressure sensor which is configured to detect a pressure of a liquid in a pipe connected to the other end of the tube, wherein the control unit controls a first rotation angle when the first roller unit passes through the closing position and a second rotation angle when the second roller unit passes through the releasing position such that fluctuation of the pressure of the liquid when the pair of roller units are rotated through at least one revolution falls within a predetermined value.

Tube pump system and method for controlling the tube pump system

There is provided a flow rate regulating device including a valve body section having a flat valve body surface, a valve seat section having a flat valve seat surface, a regulation mechanism that moves the valve body section along an axis, and a control unit that controls the regulation mechanism, wherein the regulation mechanism has a stepping motor that rotates a drive shaft about the axis, and a moving member that moves along the axis in response to the rotation of the drive shaft and is coupled to the valve body section, and the control unit controls the stepping motor so that the valve body section moves in a movement range in which the valve body surface and the valve seat surface maintain a non-contact state, in accordance with an excitation signal that changes by a micro step unit obtained by dividing a step by a predetermined division number.

Flow rate regulating device and control method of flow rate regulating device

A tube pump system is provided, which includes a pair of roller units which are rotated around the axis line from a contact position to a separate position in a state where the pair of roller units compress the tube, a pair of drive units which rotate the pair of roller units respectively, and a control unit which controls each of the pair of drive units, wherein the control unit controls each of the pair of drive units such that, when one of the pair of roller units passes the separate position, an angular velocity of the other of the pair of roller units toward the separate position is gradually decreased.

To provide a tube pump which includes: a drive mechanism including a first roller unit and a second roller unit which rotate about an axis line while being in contact with a tube having elasticity, and a first drive unit and a second drive unit which cause the first roller unit and the second roller unit to rotate independently about the axis line; a holding mechanism which holds the tube in an arcuate shape about the axis line; and an attachment mechanism which detachably attaches the holding mechanism to the drive mechanism.

Tube pump and holding mechanism

There is provided a tube pump system including: a pair of roller units rotated around an axis line from a contact position to a separate position; a pair of drive units rotating the pair of roller units respectively; and a control unit controlling each of the pair of drive units. A pipe having flexibility is connected to an outflow-side end portion of the tube, and the pipe maintains a pressure of a liquid flowing through the inside of the pipe at a first predetermined pressure higher than an atmospheric pressure. The control unit controls each of the pair of drive units such that a pressure of the liquid in the tube closed due to a contact of the pair of roller units is increased to a second predetermined pressure when one of the pair of roller units passes the separate position.

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Saitama, Japan

Yukinobu Imai