JP4505564B2 - Dispensing tip removal mechanism - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a dispensing tip removal mechanism, and more particularly to a novel improvement for separating an unnecessary tip from a tubular body by a vertically moving body that is vertically moved by a driving body.
[0002]
[Prior art]
Conventionally, as this type of dispensing tip removal mechanism that has been used, the configurations shown in FIGS. 3 to 5 can be generally used.
That is, what is denoted by reference numeral 1 in FIG. 3 is a cylinder held by the X, Y, Z transport mechanism 2 movable in the three-axis X, Y, and Z directions, and is provided in the cylinder 1. A disposable (disposable) chip 5 is detachably provided on the lower end portion 4 of the tube body 3 by fitting.
[0003]
When the tip 5 is detached from the tube body 3 in the above-described state, as shown in FIGS. 4 and 5, the removal claw 10 as a jig is engaged with the tube body 3 and pressed to give an impact. As a result, the tip 5 is detached from the tapered surface 3a of the tube body 3 and falls.
[0004]
[Problems to be solved by the invention]
Since the conventional dispensing tip removal mechanism is configured as described above, the following problems exist.
In other words, it is difficult to remove the chip in a place where the removal claw, which is a jig, is not provided. Also, since this removal work is also performed manually, it takes time and effort to remove many chips. It was.
[0005]
The present invention has been made to solve the above-described problems, and in particular, a dispensing tip removal mechanism in which an unnecessary tip is detached from a tubular body by a vertically moving body that is vertically moved by a drive body. The purpose is to provide.
[0006]
[Means for Solving the Problems]
The dispensing tip removing mechanism according to the present invention includes a cylindrical body fixed to a holding member and suspended, a tubular body fixed to the inside of the tubular body, and a cylinder detachably provided at a lower portion of the tubular body. Between the sliding cylinder and the cylindrical body, and a sliding cylindrical body having an engagement lower portion which is slidably provided between the cylindrical body and the tubular body and engages with the chip A compression elastic body that is always provided to urge the sliding cylinder upward, and a removal claw that is provided on the outside of the cylinder so as to be movable up and down via a guide pin and is connected to the engaging lower portion. And a driving body provided on the holding member for pressing the vertical moving body downward, the engaging lower part being pushed down by pushing down the vertical moving body by the driving body, It is configured to be detached from the tube body, and the front Has an arm provided at the end of the vertical movement body is configured such that the arms were to press by a rod of the drive member.
[0007]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, preferred embodiments of a dispensing tip removing mechanism according to the present invention will be described with reference to the drawings. In addition, the same code | symbol is attached | subjected and demonstrated to a part the same as that of a prior art example, or an equivalent part.
In FIG. 1 and FIG. 2, reference numeral 1 denotes a cylinder provided on the holding member 20, and a tubular body 3 is provided in the tubular body 1, and an upper portion of the tubular body 3 is It protrudes upward through the holding member 20.
[0008]
Between the cylindrical body 1 and the tubular body 3, a sliding cylindrical body 21 is provided so as to be slidable in the vertical direction, that is, in the axial direction.
A compression elastic body 22 made of an elastic body such as a spring is interposed between the sliding cylinder 21 and the cylinder 1, and the sliding cylinder 21 is always urged in the direction of arrow B.
An engaging claw 10 is engaged with an engaging lower part 23 formed at the lower part of the sliding cylinder 21, and the removing claw 10 is connected to the outer periphery of the cylinder 1 via a guide pin 24. It is connected to a lower portion 25a of a vertically moving body 25 provided so as to be vertically movable.
[0009]
As shown in FIG. 4, a tip 5 is connected to the lower portion of the tubular body 3 through a tapered surface 3a, and an arm 26 is formed on the upper and lower moving body 25 so as to protrude in the horizontal direction. .
A rod 27a provided so that the drive body 27 made of a cylinder or the like provided in the holding member 20 can be moved in and out is configured to push the arm 26 in the direction of arrow C.
[0010]
Next, the operation will be described. First, when the chip 5 connected to the lower part of the tube body 3 by fitting is used for DNA analysis or the like and becomes unnecessary, when the drive body 27 is operated to cause the rod 27a to protrude as shown in FIG. The vertical moving body 25 is pressed downward together with the arm 26, and at the same time, the engaging lower portion 23 is pressed via the removing claw 10, and the tip 5 is detached from the tubular body 3 and removed. After this removal operation, the sliding cylinder 21 and the vertically moving body 25 are restored to their original positions by the restoring action of the compression elastic body 22.
[0011]
【The invention's effect】
Since the dispensing tip removing mechanism according to the present invention is configured as described above, the following effects can be obtained.
That is, the tip can be forcibly detached from the tubular body via the vertically moving body by the rod provided in the driving body, and automatic tip removal can be achieved.
[Brief description of the drawings]
FIG. 1 is a cross-sectional view showing a dispensing tip removing mechanism according to the present invention.
FIG. 2 is a side view of FIG.
FIG. 3 is a front view showing a conventional dispensing tip removing mechanism.
4 is a configuration diagram showing a chip removal state of FIG. 1; FIG.
FIG. 5 is a view taken in the direction of arrow A showing the main part of FIG. 4;
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 Tube 3 Tube 5 Tip 10 Removal claw 20 Holding member 21 Sliding cylinder 22 Compression elastic body 23 Engagement lower part 24 Guide pin 25 Vertical moving body 26 Arm 27 Drive body 27a Rod

Claims (2)

A cylindrical body (1) that is fixedly suspended from a holding member (20), a tubular body (3) that is secured to the inside of the tubular body (1), and a lower part of the tubular body (3), which are detachable. A cylindrical tip (5) provided, and an engaging lower portion (23) that is slidably provided between the cylindrical body (1) and the tubular body (3) and engages with the tip (5). A sliding cylinder (21) having compression elasticity provided between the sliding cylinder (21) and the cylinder (3) to constantly bias the sliding cylinder (21) upward A vertically moving body having a body (22) and a removal claw (10) connected to the engaging lower portion (23) provided on the outside of the cylindrical body (1) via a guide pin (24). (25) and a driving body (27) provided on the holding member (20) for pressing the vertical moving body (25) downward, and the vertical moving body (25) is moved by the driving body (27). By pushing down, the lower engaging portion (23) is pushed down, so that the tip (5) is detached from the tube (3). Dispensing tip removal mechanism characterized in that it is configured as described above. 2. An arm (26) provided at an end of the vertical moving body (25), wherein the arm (26) is configured to be pressed by a rod of the driving body (27). Dispensing tip removal mechanism as described.

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