Capillary sampling gun head fixed-length cutting device

Abstract

The utility model discloses a fixed-length cutting device for a capillary sampling gun head. The fixed-length cutting device comprises a base, a cutting mechanism, a lifting positioning mechanism and a fixing mechanism, wherein a motor is arranged in the base; the cutting mechanism is arranged on the base; a plurality of capillary sample injection gun head limiting grooves for placing capillary sample injection gun heads are formed in the fixing mechanism; and a tool bit of the cutting mechanism is positioned right below the limiting groove of the capillary sampling gun head. Mechanical automation can be achieved, labor is saved, and cutting efficiency is improved; accurate and rapid cutting can be achieved, cutting size errors are reduced, the experiment progress is accelerated, and the experiment accuracy is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to cutting equipment, specifically is a capillary sample introduction gun head fixed length cutting device. BACKGROUND

[0002] Capillary sample introduction gun head is often used to move a small amount or trace amount of sample in chemical experiments, and requires that the capillary sample introduction gun head has low liquid adsorption and wall hanging loss, so the capillary sample introduction gun head is thinner and longer than the suction head of the ordinary sample introduction gun head. In the application scene of automatic instruments, in order to meet the pipetting demand of different ranges, the capillary sample introduction gun head of different lengths needs to be cut to a fixed length. At present, the manual cutting method is adopted, there is a large error in the cutting size and time and labor are consumed, which affects the experimental progress and accuracy. UTILITY MODEL CONTENTS

[0003] The utility model aims at providing a capillary sample introduction gun head fixed length cutting device which can realize automatic, accurate and rapid cutting.

[0004] Technical scheme: the capillary sample introduction gun head fixed length cutting device, including the base of built-in motor and the cutting mechanism arranged on the base, the lifting positioning mechanism for adjusting the position of the fixing mechanism and the fixing mechanism; a plurality of capillary sample introduction gun head limiting grooves for placing capillary sample introduction gun heads are arranged on the fixing mechanism; the cutter head of the cutting mechanism is located directly below the capillary sample introduction gun head limiting groove.

[0005] Further, the lifting positioning mechanism is a hand-operated screw rod mechanism, including a guide column, a screw rod support seat and a hand-operated screw rod clamp for driving the guide column to rotate; the fixing mechanism includes a fixed plate fixedly connected with the screw rod support seat, and a plurality of capillary sample introduction gun head limiting grooves are arranged on the fixed plate.

[0006] Further, the cutting mechanism is a pneumatic scissors.

[0007] Further, the fixing mechanism includes a limiting mechanism located directly above the sample introduction gun head limiting groove for pressing the capillary sample introduction gun head.

[0008] Further, the limiting mechanism includes a limiting pressing block and a guide rod cylinder for controlling the height of the limiting pressing block, and the bottom of the limiting pressing block is provided with a limiting pressing groove opposite to the capillary sample introduction gun head limiting groove.

[0009] Further, a waste box for collecting waste is arranged below the sample introduction gun head limiting groove.

[0010] Further, an emergency stop button for controlling the internal motor is arranged on the top of the base.

[0011] Beneficial effects: Compared with the prior art, this utility model has the following advantages: it realizes mechanical automation, saves labor, and improves cutting efficiency; it can cut accurately and quickly, reduce cutting size errors, speed up the experimental progress, and improve experimental accuracy. Attached Figure Description

[0012] Figure 1 This is a schematic diagram of the structure of this utility model;

[0013] Figure 2 This is a schematic diagram of the structure of the limiting pressure block (12) and the fixing plate (8) of this utility model. Detailed Implementation

[0014] The technical solution of this utility model will be further described below with reference to the accompanying drawings.

[0015] like Figure 1 , 2 As shown, the capillary syringe tip length-cutting device includes a base 1 with a built-in motor and a cutting mechanism 2, a lifting and positioning mechanism 3, and a fixing mechanism 4 mounted on the base 1. Preferably, the cutting mechanism 2 is a pneumatic scissor, and the lifting and positioning mechanism 3 is a hand-cranked screw mechanism 3 for adjusting the position of the fixing plate 8. The fixing plate 8 is provided with several capillary syringe tip limiting grooves 10 for placing capillary syringe tips 9; the blade of the pneumatic scissors 2 is located directly below the capillary syringe tip limiting grooves 10.

[0016] Place the capillary injection nozzle 9 to be cut into the nozzle limiting groove 10 on the fixing plate 8. Turn on the control switch of the cylinder 13, so that the cylinder 13 moves downward on the guide rod to the capillary injection nozzle 9, so that the limiting groove 14 on the limiting block 12 abuts against and presses the capillary injection nozzle 9. After pressing, control the cylinder 13 to move upward, so that the limiting block 12 moves away from the capillary injection nozzle 9. Shake the hand-cranked screw clamp 7 fixed to the fixed seat at the top of the guide column 5 to rotate the guide column 5, thereby driving the screw support seat 6 screwed on it to move up and down, thereby adjusting the fixed plate 8 fixed through the screw support seat 6 to move up and down, adjusting the length to be cut of the capillary injection nozzle 9, so that the cutting position of the capillary injection nozzle 9 is directly aligned with the blade of the pneumatic scissors 2. Press the start button to turn on the control motor in the base 2. After the pneumatic scissors 2 is powered on, it will cut. When encountering a malfunction or danger, press the emergency stop button 16 on the base 2 in time to stop the capillary injection nozzle fixed length cutting device.

Claims

1. A capillary syringe tip length-cutting device, characterized in that: It includes a base (1) with a built-in motor and a cutting mechanism (2) provided on the base (1), a lifting and positioning mechanism (3) for adjusting the position of the fixing mechanism (4) and a fixing mechanism (4); the fixing mechanism (4) is provided with a plurality of capillary injection nozzle limiting grooves (10) for placing capillary injection nozzles (9); the cutting head of the cutting mechanism (2) is located directly below the capillary injection nozzle limiting grooves (10).

2. The capillary syringe tip length-cutting device according to claim 1, characterized in that: The lifting and positioning mechanism (3) is a hand-cranked screw mechanism, including a guide column (5), a screw support seat (6) and a hand-cranked screw clamp (7) for driving the guide column (5) to rotate; the fixing mechanism (4) includes a fixing plate (8) fixedly connected to the screw support seat (6), and the fixing plate (8) is provided with a plurality of capillary injection nozzle limiting grooves (10).

3. The capillary syringe tip length-cutting device according to claim 1, characterized in that: The cutting mechanism (2) is a pneumatic scissor.

4. The capillary syringe tip length-cutting device according to claim 1, characterized in that: The fixing mechanism (4) includes a limiting mechanism (11) located directly above the injection nozzle limiting groove (10) for pressing the capillary injection nozzle (9).

5. The capillary syringe tip length-cutting device according to claim 4, characterized in that: The limiting mechanism (11) includes a limiting block (12) and a cylinder (13) with a guide rod for controlling the height of the limiting block (12). The bottom of the limiting block (12) is provided with a limiting groove (14) opposite to the capillary injection nozzle limiting groove (10).

6. The capillary syringe tip length-cutting device according to claim 1, characterized in that: Below the injection nozzle limiting groove (10) is a waste box (15) for collecting waste.

7. The capillary syringe tip length-cutting device according to claim 1, characterized in that: The base (1) is equipped with an emergency stop button (16) for controlling the internal motor.

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