JPH0543042U - Simple torque measuring instrument - Google Patents

Abstract

(57) [Summary] [Purpose] To provide a simple torque measuring device that can easily measure the tightening torque and can easily measure the optimum cap tightening torque according to the vial with a number. .. A pedestal 1 having a boss portion and a tubular portion formed therein and having a hole reaching the space in the center thereof, and a grip case 2 mounted on the pedestal.
A rotary cap 4 inserted into the upper part of the grip case via a bearing, a measurement cap 5 fixed to the rotary cap by contacting a cap chuck for capping the vial, and the rotary cap. A spring 8 for exerting an urging force on the cap, a shaft 7 attached to the rotary cap and having a tip for attaching a scale indicating needle arranged in a space formed in the pedestal at a tip end thereof, and a shaft 7 bored in the pedestal Scale plate 6 that is fitted in a hole
And a simple torque measuring device.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a simple torque measuring instrument used when setting cap tightening torque, bolt tightening torque, etc. of a capper machine or a screw tightening machine for capping a vial cap.

[0002]

[Prior Art]

 In a capper machine for automatically capping a vial cap, it is preferable that the tightening torque of the cap be substantially constant. If the cap is tightened too much, it will be damaged, and if it is loose, problems such as liquid leakage will occur. Especially for pharmaceutical vials, it is necessary to strictly control the quality by keeping the tightening torque of the cap constant. Conventionally, there is a vial capper machine as shown in FIGS. 5 to 6, for example. This capper machine was fixed by a vial fixing jig block 23 installed on the table 20 with an automatic torque adjuster 21 equipped with a cone type cap chuck 22 usually made of urethane resin at the tip. It is a device that caps a vial (not shown). That is, the automatic torque adjuster 21 is driven by the motor 24, the lever 26 is rotated while adjusting by the rotary speed adjuster 25, and the cone type cap chuck 22 is lowered, as shown in FIG. The cap 31 is capped on the vial 30 as shown in FIG. In this case, the tightening torque of the cap 31 is set to a constant value by the automatic torque adjuster 21 and is reversed at that torque value. Further, the automatic torque adjuster 21 has a structure capable of changing the tightening torque in advance.

[0003]

[Problems to be solved by the device]

 When capping a vial with the capper machine described above, the tightening torque has not been determined numerically accurately in the past, so loosen the capped cap by hand and use it as an approximate sensation. The present situation is to determine whether the tightening torque is strong or weak and adjust the torque of the automatic torque adjuster 21 at an appropriate place. Therefore, the tightening torque is often inadequate, and it was necessary to make several adjustments in order to obtain the correct tightening torque. Of course, the tightening torque can be determined while adjusting the tightening torque in combination with the torque measuring device, but it is very troublesome. The present invention has been made in view of the above problems, and its purpose is to easily measure the tightening torque when capping a vial with a capper machine. The purpose is to provide a simple torque measuring instrument that can easily measure the optimum tightening torque numerically.

[0004]

[Means for Solving the Problems]

 That is, in order to solve the above problems, the present invention provides a simple torque measuring device that forms a constant space inside and a boss portion, and a hole that reaches the space is formed in the central portion of the boss portion. Pedestal, a grip case placed on the pedestal to form a space therein, a rotary cap fitted over the grip case via a bearing, and a cap for capping the vial. Arranged in a space that is attached to the rotary cap and that is formed on the pedestal at the tip end, a measurement cap that is brought into contact with a chuck and fixed to the rotary cap, a spring that applies a biasing force to the rotary cap. And a scale plate having a predetermined torque value fitted into a hole formed in the pedestal.

[0005]

[Action]

 The operation when the simple torque measuring device is used as the above means will be described with reference to the reference symbols in the accompanying drawings. As shown in FIG. 2, when measuring the tightening torque of the cap to be attached to the vial, first, the simple torque measuring device according to the present invention is installed in the container fixing jig block 23 shown in FIGS. Install and fix. Next, the motor 24 is driven to drive the automatic torque adjuster 25, and the cone cap chuck 22 is brought into contact with the measuring cap 5. In this case, the measurement cap 5 and the rotary cap 4 rotate together against the biasing force of the coil spring 8, and the shaft 7 fixed to the rotary cap also rotates together, and is attached to the tip of the shaft 7. The needle 9 moves while pointing to the number displayed on the acrylic plate 10. In this way, the rotational torque applied to the measuring cap 5 is displayed, but when the handle 26 is still pressed down, the measuring cap is kept until the tightening torque value preset in the automatic torque adjuster 21 is reached. 5 and the rotating cap 4 rotate. Then, the needle moves until it reaches the set torque value, and at that torque value, it indicates the number of the torque value that should be applied when tightening the cap.

[0006]

【Example】

 Hereinafter, a specific embodiment of the present invention will be described with reference to the drawings. FIG. 1 is a vertical sectional view of a simple torque measuring device according to the present invention as seen from the front. The pedestal 1 part can be separated into an upper pedestal 11 and a lower pedestal 12, and a constant space 13 is formed. The upper pedestal 11 is formed with a boss portion 11a and a cylindrical portion 11b, and a hole 11c is formed in the central portion. The other end of a coil spring 8 described later is fixed to the tubular portion 11b. A cylindrical grip case 2 having an internal space is placed on the upper pedestal 11, and a rotary cap 4 is fitted on the grip case 2 via a thrust bearing 3. Reference numeral 5 denotes a measuring cap fixed to the rotary cap 4 via a pin 10 and is replaceable. That is, the measuring cap 5 is, for example, a cap for abutting the cone-type cap chuck 22 as shown in FIG. The measurement cap 5 is prepared in advance depending on the diameter and type of the cap and can be replaced with an appropriate measurement cap each time. A rubber 15 is attached to the lower surface of the pedestal 1 to prevent slippage.

Next, a boss portion 4a is formed on the rotary cap 4, and a spring fixing boss portion 4b for fixing the coil spring 8 is formed below the boss portion 4a. That is, both ends of the coil spring 8 are fixed to the cylindrical portion 11b of the base 1 and the boss portion 4b of the rotary cap 4. The coil spring 8 is adapted to exert an urging force in a direction opposite to the rotation of the rotary cap 4 when the rotary cap 4 is rotated, and is a spring for measuring a tightening torque. A long shaft 7 is attached to the spring fixing boss portion 4b. A graduation indicating needle 9 is attached to the tip of the shaft 7 and is arranged in a space 13 formed in the pedestal 1. The shaft 7 may be integrally formed with the spring fixing boss portion 4b or may be detachably formed.

FIG. 3 is a part of a plan view taken along the line AA of FIG. As shown in this figure, the upper pedestal 11 is provided with fan-shaped holes 14 in two steps, and a transparent scale plate 6 made of, for example, an acrylic plate (may be made of glass) having a predetermined torque value is provided therein. It is fitted. The needle 9 attached to the shaft 7 indicates the scale of the scale plate 6 made of an acrylic plate as the shaft 7 rotates.

The configuration of the simple torque measuring device according to the present invention is as described above. Next, the operation in the case of actually measuring the tightening torque will be described. As shown in FIG. 2, when measuring the tightening torque of the cap to be attached to the vial, first, the simple torque measuring device according to the present invention is installed in the container fixing jig block 23 shown in FIGS. Install and fix. Next, the motor 24 is driven to drive the automatic torque adjuster 21, and the cone type cap chuck 22 is brought into contact with the measuring cap 5. In this case, the measurement cap 5 and the rotary cap 4 rotate together against the biasing force of the coil spring 8, and the shaft 7 fixed to the rotary cap also rotates together, and is attached to the tip of the shaft 7. The needle 9 moves while pointing to the number displayed on the scale plate 6. In this way, the rotational torque applied to the measuring cap 5 is displayed, but when the handle 26 is still pressed down, the measuring cap 5 is kept until the tightening torque value preset in the automatic torque adjuster 21 is reached. And the rotating cap 4 rotates. Then, when the set torque value is reached, the hand 9 stops and indicates the number of the set torque value. In this way, the tightening torque to be applied to the cap can be adjusted and set.

The simple torque measuring device according to the present invention is as described above, but of course, modified examples are possible. For example, although the coil spring 8 is used as the urging force generating means applied to the measuring cap 5 and the rotating cap 4 in the actually manufactured embodiment, it may be a spring spring having a considerable spring constant against the rotating cap 4. However, a leaf spring may be applied. Further, the cap chuck to be brought into contact with the measuring cap 5 can be not only a cone type cap chuck but also an air chuck.

[0011]

[Effect of the device]

 Since the simple torque measuring device according to the present invention is configured as described above in detail, it is possible to easily measure the tightening torque when the cap is capped on the vial, which has been conventionally troublesome. In addition, since it is possible to set the amount of the torque to be adjusted in advance by the automatic torque adjuster with a number, it is possible to set the appropriate tightening torque according to the vial. Furthermore, since it is possible to know numerically how much torque is applied when the cap is tightened and capped on the vial, it is possible to perform appropriate quality control of the vial for pharmaceuticals and foods in particular. Furthermore, the simple torque measuring device according to the present invention is extremely convenient because it can be immediately applied to the capper installed in the existing automation line when replacing the cap.

[Brief description of drawings]

FIG. 1 is a vertical sectional view of a simple torque measuring device according to the present invention as seen from the front.

FIG. 2 is a view showing a state in which a cone type cap chuck is brought into contact with a measuring cap of the simple torque measuring device according to the present invention.

FIG. 3 is a part of a plan view taken along the line AA of FIG.

FIG. 4 is a view showing a state in which a conventional cone cap chuck is brought into contact with a cap capped on a vial.

FIG. 5 is a front view of a conventional capper machine.

FIG. 6 is a side view of a conventional capper machine.

[Explanation of symbols]

 1 pedestal 13 pedestal space 2 grip case 3 thrust bearing 4 rotating cap 5 measuring cap 6 scale plate 7 axis 8 coil spring 9 needle 22 cone cap chuck

Claims (1)

[Scope of utility model registration request] 1. A pedestal in which a fixed space is formed inside, a boss is formed, and a hole reaching the space is bored in the center of the boss, and a space placed inside the pedestal is formed inside. A grip case, a rotating cap fitted over the grip case via a bearing, a measuring cap fixed to the rotating cap by abutting a cap chuck for capping the vial on the vial, A spring for applying an urging force to the rotating cap, a shaft attached to the rotating cap and having a needle for indicating a scale arranged in a space formed in the pedestal at a tip end thereof, and a shaft provided in the pedestal A simple torque measuring instrument consisting of a scale plate fitted in a hole and having a predetermined torque value recorded on it.