JPH0728099U - Automatic cap torque measuring device for capped bottles - Google Patents

Abstract

(57) [Abstract] [Purpose] To provide an automatic cap torque measuring device for a capped bottle capable of measuring the capping torque of a capped bottle cap with good accuracy and workability, having a simple structure and economically. In the cap torque automatic measuring device for a capped bottle, the torque measuring means includes a sensor for detecting the torque transmitted to the main body clamping means via the capped bottle, and further a control calculation for controlling a controlled device. Section, a storage section for storing torque measurement data from the start to the end of measurement, and a calculation section, the cap chuck means is a cam mechanism and an air cylinder, and the torque applying means is a spline shaft and a spline nut. The main body clamping means uses a gear mechanism having an automatic centering function and an air cylinder.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a device for inspecting the capped state of a capped bottle for soft drinks, alcoholic drinks, pharmaceuticals, etc., and particularly to a device for automatically measuring the capped torque of a cap capped on a bottle body containing a drink agent. It is a thing.

[0002]

[Prior art]

 Conventionally, as a device for measuring the cap torque of the capped bottle, for example, as shown in FIG. 10, the capped bottle 2 is placed on the bottle placing table 42 of the cap torque measuring device 5, and is placed on the bottle placing table 42. The main body clamping means 40 provided is manually operated to clamp the main body 4 of the capped bottle 2, and the cap 3 is manually rotated by using the human hand 6, and the cap opening torque is set to the torque provided at the bottom of the bottle holder 42. It was a device for measuring by the measuring means 70.

On the other hand, there is known a crowned state detection device 7 for a cap 3 capped on a capped bottle as shown in FIG. 11 (JP-A-2-219784). This is a chuck 41, 41 'that moves the main body 4 of the capped bottle 2 placed on the bottle holder 42 into and out of contact with the rod group 49 of the air cylinder 48 by operating the link groups 58, 58'. Sandwich with. Next, when the entire cap holding mechanism is lowered by an elevator motor and a screw rod mechanism (not shown) and the chucks 22 and 22 'reach the cap holding position, the cap 3 is moved in and out by the rod 25 of the air cylinder 26, and the link group 35 is moved. , 35 'are operated and sandwiched by chucks 22 and 22' which are brought into contact with and separated from each other. Then, the motor 67 provided on the upper part of the apparatus applies torque to the cap 3 via the drive gear 62 and the driven gear 63, and at the same time, the torque is measured by the torque sensor 68.

[0004]

[Problems to be solved by the device]

 However, the conventional cap torque measuring device 5 for a capped bottle has the following problems. That is, in the device for manually measuring, the set of the capped bottle 2 was complicated, and the "variation of measurement" by the measurer was large. In addition, it was difficult to do the measurement because the hand was hurt when the measurement was repeated many times.

Further, in the above-mentioned conventional cap capped state detection device 7 for a capped bottle, since the chucks 22 and 22 ′ for sandwiching the cap 3 of the capped bottle 2 are operated by the link mechanism, the cap is not horizontally attached to the cap. There is a risk that a force in a direction other than the gripping force of will be applied, which may cause an error in the measured torque value. Also, since it is a link mechanism, there are many contacts between the links, which causes a lot of "rattle", which may adversely affect the measurement of the torque value. Furthermore, the number of parts was large and it was uneconomical.

The present invention has been made in view of the above problems, and an object thereof is to accurately measure the capping and capping torques of a cap capped on a capped bottle without variations in measurement. It is intended to provide an automatic cap torque measuring device for a capped bottle, which has a simple structure, is economical, and can perform measurement with good workability.

[0007]

[Means for Solving the Problems]

 In order to solve the above problems, the first invention is a cap chuck means for sandwiching a cap of a capped bottle, a torque applying means for applying a torque to the cap via the cap chuck means, and a capped bottle. In the cap torque automatic measuring device for a capped bottle, which is equipped with a main body clamping means for clamping and fixing the main body, and a torque measuring means for measuring the torque applied by the torque applying means, the torque measuring means comprises: It is provided with a sensor for detecting the transmission torque transmitted to the main body clamping means via the capped bottle by the torque.

A second aspect of the present invention provides the torque measuring means according to the first aspect, wherein the torque measuring means controls a controlled device, and a storage section for storing torque measurement data from the start to the end of the torque measurement. And a computing unit for computing the stored torque measurement data.

A third aspect of the present invention is the first or second aspect of the present invention, wherein the cap chuck means is a vertical shaft that is vertically movably supported, and a vertical direction that passes through a hollow portion of the vertical shaft. A rod movably supported on the vertical shaft, a cam mechanism provided near the lower end of the vertical shaft and one end side of the rod, and operated by vertical movement of the rod, and a horizontal mechanism by the operation of the cam mechanism. And a pair of chucks that move toward and away from each other in the direction.

A fourth invention according to any one of the first invention to the third invention is that the main body clamping means is brought into contact with and separated from a gear mechanism having a self-centering function in a horizontal direction by the operation of the gear mechanism. And a pair of chucks.

[0011]

[Action]

 With the above configuration, the torque measuring means includes the sensor for detecting the transmission torque transmitted to the main body clamping means through the capped bottle by the torque, so that the torque is transmitted from the cap chuck means through the capped bottle. Is transmitted to the main body clamping means, and the transmitted torque is detected and measured by the sensor.

Further, the torque measuring means calculates a control calculation unit that controls the controlled device, a storage unit that stores torque measurement data from the start to the end of the torque measurement, and the stored torque measurement data. Since the calculation unit for processing is provided, it becomes possible to compare with the set value, analyze the data, statistically process the data, and make a graph based on the torque measurement data.

The cap chuck means includes a vertical shaft that is vertically movably supported, and a rod that is vertically movably supported by the vertical shaft through a hollow portion of the vertical shaft. A cap mechanism is provided near the lower end of the shaft and on one end side of the rod and is operated by the vertical movement of the rod, and a pair of chucks that are horizontally contacted and separated by the operation of the cam mechanism are provided. As the chuck moves up and down on the vertical axis, it quickly comes into contact with and separates from the capped bottle cap, and the vertical movement of the rod that penetrates the hollow part of the vertical axis activates the cam mechanism of the cap chuck, causing the cap to move. To pinch. Then, the vertical axis is rotated by the rotational force transmitted from the torque applying means, and the torque is transmitted to the cap of the capped bottle without difficulty. Moreover, the operation of the cam mechanism is smooth, and no excessive force acts on the cam mechanism, and the operating force can be adjusted by adjusting the pressure of the air cylinder.

Further, since the main body clamping means is provided with the gear mechanism having the self-aligning function and the pair of chucks which come in contact with and separate from each other in the horizontal direction by the operation of the gear mechanism, the central shaft of the capped bottle and the device It can be securely fixed together with the central axis of the torque applying means, and the torque applied to the cap is accurately detected by the sensor of the torque measuring means.

[0015]

【Example】

 Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings. 1 is a perspective view showing an embodiment of an automatic cap torque measuring device for a capped bottle according to the present invention, and FIG. 2 is a sectional view showing a part of the cap chuck means and the torque applying means in the embodiment of FIG. FIG. 3 is a side view, FIG. 3 is a partially omitted perspective view of the main body clamping means in the embodiment of FIG. 1, FIG. 4 is a sectional view taken along the line II of FIG. 3, and FIG. 5 is another main body clamping means corresponding to FIG. In an embodiment, a partially omitted perspective view, FIG. 6 is a partially omitted crushing perspective view showing an embodiment of a head lifting means according to the present invention, and FIG. 7 is an automatic cap torque measuring device for a capped bottle according to the present invention. FIG. 8 is a schematic diagram showing the signal transmission flow of the torque measuring means together with the controlled device, and FIG. 8 shows the P.O.P. measured by the cap torque automatic measuring device for the capped bottle according to the present invention. P. (PI LFER PROOF) A curve diagram showing an example of measurement of the number of scans of the cap to the opening torque value, and FIG. 9 shows the optimum P.T. for applying the cap torque automatic measuring device for capped bottles according to the present invention. P. It is a perspective view showing a cap state after cap opening.

FIG. 9 shows a P. capsulated in a capped bottle 2 containing a drink or the like. P. When the cap is manually opened, the cap is separated from the perforations 3'a and the cap is broken as shown in the figure. The present invention is particularly applicable to the P.P. P. The present invention relates to an automatic cap torque measuring device for capped bottles, which is optimal for automatically measuring the cap opening and closing torques.

FIG. 1 shows an embodiment of an automatic cap torque measuring device for a capped bottle according to the present invention, which includes a cap chuck means 10 for holding a cap 3 of the capped bottle 2 and a book for the capped bottle 2. Main body clamping means 40 for clamping and fixing the body 4, torque applying means 60 for applying torque to the cap 3, torque measuring means 70 for measuring the applied torque, cap chuck means 10 and torque applying means 60 as a whole. Head raising and lowering means 100 for raising and lowering the head. The head is supported on the stand 102 via the moving base 111, and the stand 102 is fixed to the base plate 101. The main body 4 of the capped bottle 2 is placed on the bottle placing table 42.

FIG. 2 shows a side view of the head, that is, the cap chuck means 10 and the torque applying means 60. The cap chuck means 10 includes a spline shaft 11 ′, which is a vertical shaft 11 rotatably supported in a vertical direction with respect to a movable table 112 and a cap chuck support member 113, and a central axis of the spline shaft 11 ′. A rod 25 which is rotatably supported by a spline shaft 11 'so as to be vertically movable through a hollow portion along with the rod 25, and is provided near the lower end of the spline shaft 11' and one end side of the rod 25 so that the rod 25 can move vertically. The cam mechanism 24 is operated by the cam mechanism 24, and the pair of chucks 22, 22 which are horizontally contacted and separated by the operation of the cam mechanism 24 are provided. The spline shaft 11 ′ is supported by the thrust bearing 14 and the spline nut 64, and the elevating and lowering of the spline shaft 11 ′ connects the case 13 and the air cylinder 26 fixed thereto to the rod 12 a of the air cylinder 12. By the operation of the air cylinder 12, the boss 15 fixed to the case 13 is guided along the guide 16 to move stably. Both ends of the guide 16 are supported by bearings 16a, 16a. The other end of the rod 25 is connected to the rod 26a of the air cylinder 26, is slidable in the vertical direction in the case 13 via the thrust bearing 27 and the thrust bearing receiver 27a, and in the hollow part of the spline shaft 11 'in the vertical direction. It is slidably supported on. In the cam mechanism 24, a pair of cam followers 30, 30 are rotatably attached to a vertical surface of a support piece 28 fixed to a tip of a rod 25 with a nut 29. On the other hand, the ball spline shaft 18 is fixed to the case 17 fixed to the lower end of the spline shaft 11 ′ by the nut 23, and the pair of ball nuts 20, 20 slide along the central axis of the ball spline shaft 18. Guides 21, 21 and chucks 22, 22 are fixed to the pair of ball nuts 20, 20, which are rotatably supported. Since the pair of ball nuts 20 and 20 are set to spring each other by the spring 19, the cam followers 30 and 30 always move to follow the guides 21 and 21.

On the other hand, the torque applying means 60 includes a speed control motor 61 supported by a moving table 112, a drive gear 62 connected to its shaft (not shown), and a driven gear 63 meshed with the drive gear 62. A driven gear 63 and a spline nut 64 fixed on the same shaft are provided. The spline nut 64 and the spline shaft 11 'are slidably meshed with each other in the vertical direction, and the spline nut 64 is supported by the inner cylinder 65 and the outer cylinder 66 via the thrust bearing 69a and the radial bearing 69b. Has been done.

FIG. 3 is a partially omitted perspective view of the main body clamping means. The pair of chucks 41, 41 'are fixed to the respective beams 45, 45', and the beams 45, 45 'are slidably supported by the guide shafts 44, 44 near both ends thereof, respectively. 45, 45 'face each other and are supported so as to be able to come into contact with and separate from each other. The guide shafts 44, 44 are supported by four bearings 44a, 44a, 44b, 44b. Further, the beams 45 and 45 ′ are fixed to the pair of pinion racks 47 and 47 ′, respectively, and the pinion racks 47 and 47 ′ are meshed with one pinion gear 46. Further, one of the pinion racks 47 ′ is connected to the rod 49 of the air cylinder 48. Since the pinion gear 46 is arranged so as to always coincide with the central axis of the torque applying means 60 of the present apparatus (the central axis of the cap chuck), when the pinion rack 47 ′ is moved by the air cylinder 48, the pinion rack 47 is moved. , 47 'contact and separate the center axis of the pinion gear 46 with respect to the point, and the chucks 41, 41' are automatically aligned based on the center axis of the apparatus. The air cylinder 48 and the four bearings 44a, 44a, 44b, 44b are mounted on the rotary table 50. The pinion gear 46 is rotatably supported by a rotary shaft 51 via a bearing (not shown), the rotary shaft 51 is fixed to the rotary table 50, and the base plate 101 is rotatably supported by a bearing (not shown). It is supported.

As shown in FIG. 4, the rotary shaft 51 is fixed to an arm 52, and the arm 52 has a pair of arms 55, 55 at one end, and each of the pair of arms 55, 55 has a screw with a pointed tip. 54, 54 are provided, and the tips of the screws 54, 54 are in contact with the tip portion 72 of the load cell 71 ′, which is a sensor of the torque measuring means, at one point. The rear end portion 73 of the load cell 71 ′ is fixed to the base plate 101 via a support piece 74.

FIG. 5 is another embodiment of the main body clamping means corresponding to FIG. 3, and is a partially omitted perspective view. The difference from FIG. 3 is that an arm 52 is fixed to a rotary shaft 51, and the arm 52 and the tip portion 72 of the load cell 71 ′ are connected via a connecting rod 53. The connection points 53a and 53b are pin couplings. Since other parts are the same as those shown in FIG. 3, the same functional parts are denoted by the same reference numerals, and the description thereof will be omitted.

FIG. 6 shows an embodiment of the head elevating means 100 according to the present invention. The moving base 111 that supports the head is supported so as to be vertically movable along the pair of guide shafts 108 and 108 with respect to the stand 102 placed on the base plate 101. The stand 102 has a handle 103, a shaft 104 fixed to the handle 103, a miter gear 105a fixed to the shaft 104, a miter gear 105b meshing with the miter gear 105a, and a trapezoidal screw having a trapezoidal screw 106 connected to the miter gear 105b. A rod 106 ′ is provided, and a trapezoidal screw nut 106 is engaged with the trapezoidal screw 106. Since the trapezoidal screw nut 107 is fixed to the moving base 111, the moving base 111 moves up and down as the trapezoidal screw rotates.

The cap torque automatic measuring device 1 for a capped bottle according to the present invention has the above structure, but operates as follows. First, the capped bottle 2 whose torque is to be measured is placed on the bottle holder 42. Next, when the air cylinder 48 of the main body clamping means 40 is operated, the chucks 41, 41 'are moved to the pinion gear 46, that is, the device 1 by the self-aligning action of the pinion gear 46 and the pair of pinion racks 47, 47'. Since the central axis of the torque applying means 60 is brought into contact with and separated from the central axis of the spline, the central axis of the capped bottle 2 coincides with the central axis of the cap chuck, and the capped bottle 2 becomes the central axis of the device 1. The setting is fixed.

Since the capped bottle 2 has various height dimensions, the lifting handle 103 of the head lifting means 100 is rotated according to the height dimension of the capped bottle 2 to be measured, and the chucks 22, 22 are covered. Adjust and fix the height of the head so that it is slightly higher than the height of the vial 2. Next, the air cylinder 12 for raising and lowering the cap chuck means 10 is operated to lower the spun shaft 11 'to lower the chucks 22, 22 to a position where the cap 3 of the capped bottle 2 can be chucked. For this descending operation, the descending air may be supplied to the air cylinder 12, or gravity may be used if descending by its own weight.

Next, when the rod of the air cylinder 26 is lowered, the cam followers 30, 30 rotatably supported by the support piece 28 descend along the guides 21, 21. Since the chucks 22 and 22 are fixed to the guides 21 and 21 via the ball nuts 20 and 20, as the cam followers 30 and 30 descend, the guides 21 and 21 approach each other, and the ball nuts 20 and 20 also move. Close to each other against the spring 19, the chucks 22, 22 chuck the cap 3 of the capped bottle 2.

Next, when the speed control motor 61 of the torque applying means 60 is operated and the drive gear 62 is rotated, the rotation is transmitted to the driven gear 63, and the spline nut 64 fixed to the driven gear 63 on the same shaft is moved. It rotates and the spline shaft 11 'rotates. The case 17 is rotated by the rotation of the spline shaft 11 ′, and the pair of chucks 22, 22 is rotated together with the case 17. Since the capped bottle 2 is fixed by the main body clump means 40, torque is applied to the cap 3 of the capped bottle 2. The applied torque is transmitted from the main body 4 of the capped bottle 2 to the chucks 41, 41 'of the main body clamping means 40, and further, the beams 45, 45', the guide shafts 44, 44, and the bearings 44a, It is transmitted to the rotary table 50 via 44a, 44b and 44b, and further transmitted to the rotary shaft 51 and the arm 52 provided at the lower portion of the main body clamping means 40. In the arm 52 shown in FIG. 3, the rotational torque serves as a force for pressing the tip portion 72 of the load cell 71 ′ by the screws 54, 54, which causes stress or strain in the load cell 71 ′, so that the cap 3 of the capped bottle 2 is closed. The torque applied to the load sensor 71 is detected by the load cell 71 ′, which is a sensor of the torque measuring means 70.

FIG. 7 is a schematic diagram showing the signal transmission flow of the torque measuring means 70 of the cap torque automatic measuring device 1 for a capped bottle according to the present invention together with the controlled device. The cap torque automatic measuring device 1 for a capped bottle according to the present invention automatically controls the measuring device so as to press the tip portion 72 of the load cell 71 ′ which is the sensor of the torque measuring means 70, and the pressing force and load cell Data relating to the stress or strain generated in 71 'is input in advance, and the zero point correction is automatically performed before the automatic measurement is started. Therefore, the torque applied to the cap is detected by the load cell 71'. , Its output signal is amplified by an amplifier and input to an AD converter. The analog signal is digitized by the A / D converter, and the digital signal is taken into the microcomputer. The data sampling time is about 10 ms in interrupt processing. The microcomputer has the function of controlling solenoid valves, control motors, and other controlled devices that supply pressurized air to each air cylinder based on digital signals, storing digital signals, or performing calculations. By equipping the automatic cap torque automatic measuring device 1 of the capped bottle 2 of the invention with a microcomputer, a control calculation unit for controlling the controlled device, a storage unit for storing torque value data, and a torque value data are used. It will be equipped with a calculation unit for performing calculation. The torque value can be displayed on a display device, for example, a liquid crystal panel, printed on a printer, or transferred to another electronic device by providing a display unit, a printing unit, or a communication unit in the device 1. You can

FIG. 8 is a graph showing P.S. measured using the cap torque automatic measuring device 1 for a capped bottle according to the present invention. P. It is a curve figure which shows one measurement example of the number of scans of a cap-opening torque value. As described above, the present invention is particularly applicable to the P.P. P. This is an automatic cap torque measuring device for capped bottles, which is optimal for automatically measuring the opening and closing torque of the cap 3 '. P. The torque value when the cap 3'is opened is displayed in relation to the number of scans. P. P. The torque value when the cap 3'is opened follows a curve 80. That is, 1st value 81 (torque at which PP cap 3'starts to turn), 2nd value 82 (torque at which perforations of PP cap 3'begin to start), 3rd value 83 (PP cap) The curve 80 has the torque (3) at which the link breaks.

The cap torque automatic measuring device 1 for a capped bottle according to the present invention includes a storage unit for storing torque value data and a calculation unit for calculating using the torque value data. 81, 2nd value 82 and 3rd value 83 are also stored at the time of torque measurement. Therefore, according to a known method, these maximum values (however, the 2nd value 82 is the maximum value) are judged by arithmetic processing and displayed on the display section or the printing section, printed, or through the communication section. It is possible to transfer all the data for a case. In addition, the 2nd value 82 (peak data) at the time of opening and up to 100 OK and NG discrimination data are stored, and at the end of measurement, the number of samples, maximum value, minimum value, average value, standard deviation, OK It is possible to display, print or transfer the statistical calculation of the rate.

[0031]

[Effect of device]

 According to the first aspect of the present invention, the torque measuring means is provided with the sensor for detecting the transmission torque transmitted to the main body clamping means through the capped bottle, so that the cap capped on the capped bottle is opened. It is a measuring device that can measure the capping torque and the capping torque automatically with high accuracy without any variation, and has a simple structure, is economical, and has good workability.

According to the second aspect of the present invention, the torque measuring means includes a control arithmetic unit that controls the controlled device, a storage unit that stores torque measurement data from the start to the end of torque measurement, and the stored torque measurement unit. In addition to the effect of the first invention, it is necessary to analyze and statistically process the torque measurement data, or to display or print the time-dependent change of the torque measurement value, since the data processing unit is provided. It is possible to obtain various results.

According to the third aspect of the present invention, the cap chuck means includes a vertical shaft that is vertically movably supported, and a rod that is vertically movably supported by passing through a hollow portion of the vertical shaft. A cam mechanism that is provided near the lower end of the vertical shaft and on one end side of the rod and that operates by vertical movement, and a pair of chucks that move in and out in the horizontal direction by the operation of this cam mechanism. In addition to the effects of the first and second inventions, the measuring device has less torque measurement error.

According to the fourth aspect of the present invention, the main body clamping means includes the gear mechanism having the self-aligning function and the pair of chucks that come into contact with and separate from each other in the horizontal direction by the operation of the gear mechanism. In addition to the effect of any one of the invention to the third invention, the capped bottle can be easily installed on the central axis of the measuring device, and the measurement accuracy is improved.

[Brief description of drawings]

FIG. 1 is a perspective view showing an embodiment of an automatic cap torque measuring device for a capped bottle according to the present invention.

FIG. 2 is a side view showing a part of a cap chuck means and a torque applying means in a cross section in the embodiment of FIG.

FIG. 3 is a partially omitted perspective view of a main body clamping means in the embodiment of FIG.

4 is a cross-sectional view taken along the line I-I in FIG.

FIG. 5 is a partially omitted perspective view showing another embodiment of the main body clamping means corresponding to FIG.

FIG. 6 is a partially omitted crushing perspective view showing an embodiment of a head elevating means according to the present invention.

FIG. 7 is a schematic diagram showing the signal transmission flow of the torque measuring means of the cap torque automatic measuring device for a capped bottle according to the present invention together with the controlled device.

FIG. 8 is a graph showing P.S. measured using an automatic cap torque measuring device for a capped bottle according to the present invention. P. Number of cap scans ~
It is a curve figure which shows one measurement example of the opening torque value.

FIG. 9 shows the optimum P.V. for applying the cap torque automatic measuring device for a capped bottle according to the present invention. P. It is a perspective view showing a cap state after opening the cap.

FIG. 10 is a schematic perspective view of a cap torque measuring device by manual opening according to the related art.

FIG. 11 is a front view of a cap crowned state detection device according to a conventional technique, a part of which is shown in section.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Automatic cap torque measuring device for capped bottles 2 Capped bottles 3 Caps 4 Main body 10 Cap chuck means 11 Vertical shaft 12 Lifting air cylinder 21 Guide 22 Chuck 24 Cam mechanism 25 Rod 26 Air cylinder 30 Cam follower 40 Main body clamping means 41, 41 'Chuck 43 Gear mechanism 46 Pinion gear 47, 47' Pinion rack 48 Air cylinder 60 Torque imparting means 61 Speed control motor 64 Spline nut 70 Torque measuring means 71 Sensor 100 Head elevating means

 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Creator Kazuo Sato 957-4 Ino, Oita City, Oita Prefecture Sankyu Co., Ltd. S15-205

Claims (4)

[Scope of utility model registration request] 1. A cap chuck means for sandwiching a cap of a capped bottle, a torque imparting means for imparting a torque to the cap via the cap chuck means, and a body clamp for sandwiching and fixing the body of the capped bottle. In the cap torque automatic measuring device for a capped bottle provided with a means and a torque measuring means for measuring a torque applied by the torque applying means, the torque measuring means uses the torque to transfer the main body via the capped bottle. An automatic cap torque measuring device for a capped bottle, comprising a sensor for detecting a transfer torque transmitted to a clamp means. 2. The torque measuring means according to claim 1, wherein the torque calculation means controls a controlled device, a storage unit stores torque measurement data from the start to the end of the torque measurement, and the stored torque. An automatic cap torque measuring device for a capped bottle, comprising: an arithmetic unit for arithmetically processing measurement data. 3. The cap chuck means according to claim 1 or 2, wherein the cap chuck means is vertically movably supported in a vertical direction and a vertical shaft movably in a vertical direction through a hollow portion of the vertical shaft. An axially supported rod, a cam mechanism provided near the lower end of the vertical shaft and one end side of the rod, and operated by the vertical movement of the rod, and a pair of horizontally contacting and separating by the operation of the cam mechanism. An automatic cap torque measuring device for capped bottles, which is provided with a chuck. 4. The main body clamping means according to claim 1, comprising a gear mechanism having a self-aligning function, and a pair of chucks that come into contact with and separate from each other in the horizontal direction by the operation of the gear mechanism. An automatic cap torque measuring device for a capped bottle, which is characterized in that