JP2689866B2 - Winding part inspection device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a can winding portion inspection device for inspecting a winding portion of a can used as a can container.

[0002]

2. Description of the Related Art Cans used as canned containers for foods and the like are:
It is formed by the can body, can lid and can bottom. In the case of a so-called three-piece can, the can body and can bottom are wound around the can body, and the can body and can bottom are integrated. In the case of the two-piece can described above, the can is configured by winding a can lid around a can body to achieve a sealed can. The tightening part of this can body and can lid (hereinafter referred to as “can lid” including the can bottom)
As shown in FIG. 8, the body hook (BH) formed on the edge of the can body and the cover hook (CH) formed on the outer periphery of the can lid are engaged with each other and pressure-bonded to each other. There is.

[0003] Since the quality of the winding portion has a great influence on the quality retention of the contents filled in the can, it is considered that the inspection of the winding portion is one of the most important ones among various inspections on the can. ing. Generally, the inspection of the winding portion can be performed by the dimensions of the winding thickness, the winding width, the can height and / or the counter sink depth. For example, when the winding tightening part is in a defective state, the winding tightening thickness (T) may be thicker or thinner than the standard value (generally, it is thicker than the standard value). Width (W)
Is larger or smaller than the standard value.
Therefore, a device for inspecting a winding tightening portion by measuring a winding tightening thickness and a winding tightening width is disclosed in Japanese Patent Publication No. 5-20681.
The present applicant has proposed it in Japanese Patent Laid-Open No. Sho 64-1959.

However, the can inspection device proposed in Japanese Examined Patent Publication No. 5-20681 has a structure for performing inspection automatically and precisely. For example, in the case where a can is taken out and simply inspected. It couldn't be used easily. Therefore, in the case of a simple inspection such as a can extraction inspection, an operator manually uses a seaming micrometer as shown in FIG. 7 to wind the winding thickness (T) and the winding width (W). The can tightening was inspected by measuring.

[0005]

As described above, the conventional simple inspection of the canned portion of the can has been performed manually by using a seaming micrometer, so that it has the following problems. First, the operator applies the measurement pressure by hand, so the measurement pressure at the time of measurement is not constant, and the micrometer angle when sandwiching the winding tightening part is not constant. The problem is that an error occurs.

Secondly, since the anvil portion of the seaming micrometer has a special shape, a seaming micrometer corresponding to each can type having a different neck shape of the can body and a different shape of the winding closing lid. The problem is that you have to prepare.

Thirdly, when the tightening thickness and the tightening width are measured, and when these measurements are made at a plurality of positions of the tightening portion, a seaming micrometer must be set each time, so that workability is improved. Is a problem.

The present invention has been made in view of the above problems, and improves accuracy by eliminating measurement errors due to individual differences among workers, and also improves versatility by easily supporting various types of cans. Further, it is an object of the present invention to provide an apparatus for inspecting a tightening portion of a can, which can measure the tightening thickness and the tightening width in a single set and can measure at a plurality of points by a simple operation, thereby improving workability. .

[0009]

In order to achieve the above object, a winding portion inspection apparatus of the present invention comprises a base portion provided with a gauge ring for positioning a can at a measuring position, and a radial direction of the can positioned at the measuring position. A moving means that is constantly urged outward in the radial direction of the can by the urging means, an anvil and a measuring device attached to the moving means, and a radial direction of the can, scan incorporated in the measuring instrument
It is constantly urged inward in the radial direction of the can by pulling , and a probe shaft having a probe at the tip is provided on the measuring device,
The tip portion of the measuring element shaft is engaged with the rear portion of the measuring element shaft, and when the operating lever is actuated, the measuring element shaft resists the biasing force of the spring and moves outward in the radial direction of the can. And then the moving means moves inward in the radial direction of the can against the urging force of the urging means.

Further, the winding tightening portion inspection device of the present invention comprises a base provided with a plurality of gauge rings for positioning the can at the measuring position and a reference roller for supporting the can positioned at the measuring position. Part, a movable base that is movable in the radial direction of the can positioned at the measurement position, a measuring device attached to the movable base, a probe rotatably attached to the movable base, and a probe on one side. A measurement lever whose side is in contact with the probe of the measuring instrument, and can be gripped simultaneously with this measurement lever
Fixed lever attached to the moving means with a gap
And provided between the measuring lever and the fixed lever,
Move the measuring lever so that the probe approaches the base.
And a biasing means for biasing the measurement lever with a constant force.
-When the measurement lever and the fixed lever are grasped at the same time,
Rotates to the fixed lever side against the biasing force of the biasing means.
Move the probe away from the base
It is configured to have a winding tightening width measuring unit.

[0011] And, preferably, one said base portion
Place the winding thickness measurement section and the winding width measurement section around the
In addition , the moving means of the winding thickness measuring section is composed of a moving base that moves in the radial direction of the can, an anvil and a measuring device, and a supporting base that is rotatably attached to the moving base. In addition, a stop member for stopping the movable base of the winding width measuring unit at the standby position is provided.

[0012]

In the winding tightening portion inspection device having the above-mentioned structure, the operation lever of the winding tightening thickness measuring portion is actuated to widen the space between the anvil and the measuring element, and the measuring lever and the fixed lever of the winding tightening width measuring portion are connected to each other. Hold the probe to retract the probe to the retracted position. In this state, the can is placed in the gauge ring for positioning. After that, by returning the operating lever, the measuring lever, and the fixing lever to the original positions, the anvil and the contact point are brought into contact with the chuck wall and the seaming wall of the winding tightening portion, and the probe is brought into contact with the cover hook radius, respectively. Measure the winding thickness and winding width.

[0013]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the can winding portion inspection device of the present invention will be described below. 1 is a plan view of the embodiment apparatus, FIG. 2 is a partial cross-sectional side view of the winding thickness measuring unit of FIG. 1, FIG. 3 is a side view of the winding width measuring unit, and FIG. 4 is a winding width measuring unit. Figure 4 shows a partial view of the stop member. The apparatus of this embodiment has a base portion 10
And a winding thickness measuring unit 20 and a winding width measuring unit 30 which are arranged on the base portion 10 at intervals of 120 degrees.

The base 10 includes a base 11 and the base 1.
It has two columns 12 erected on the column 1, a lower plate 13 attached to the columns 12 so as to be vertically movable, and an upper plate 14 mounted on the lower plate 13. Here, the lower plate 13 is the clamp lever 1
By tightening and loosening 3a, the column 12 can be moved up and down and fixed, and can be set to an arbitrary height.

Further, on the upper surface of the upper plate 14, a set of three gauge rings 15 are mounted in a replaceable manner on the same circumference. The gauge ring 15 is used for positioning the can 1 as the inspection object, and a plurality of types according to the diameter of the can 1 are prepared, and the one corresponding to the can diameter is selected. To use.

Further, a reference roller 16 is provided between the three gauge rings 15 on the upper surface of the upper plate 14.
They are arranged so as to rotate in the circumferential direction of the can. These reference rollers 16 are arranged so as to slightly project from the upper plate 14, and the winding fastening portion of the can 1 is supported by these reference rollers 16 at three points. The reference roller 16 is not necessarily provided between the gauge rings 15 as long as it can support the can at three points.

The winding thickness measuring unit 20 has a guide 21 provided on the upper surface of the base 11 and a moving base 22 which moves along the guide 21 in the radial direction of the can. The movable table 22 is a tension spring 2 provided between the movable table 22 and the base 11.
7, it is always urged to the side in contact with the stopper 28. A support table 23 is rotatably attached to the upper part of the moving table 22, and both the tables form a moving means. The rotation of the support base 23 is performed by loosening the fastening of the support base 23 by the clamp lever 23a and rotating the support base 23 about the shaft 23c while looking at the scale 23b.

An anvil 24 and a measuring instrument 25 are attached to the support 23. The measuring device 25 is a measuring element 25.
It is attached so that a faces the anvil 24. Then, the anvil 24 and the tracing stylus 25a are provided in the groove 14 formed in the upper plate 14 as the movable table 22 moves.
The inside of a can be moved in the radial direction of the can 1. In addition, the movable table 22 is provided with a predetermined angle θ described later,
It is also possible to directly attach the anvil 24 and the measuring device 25. The measuring instrument 25 is provided with an operating lever 26 via a rotating portion 26b, and a tip 26a of the operating lever 26 is provided.
Has a bifurcated shape and is engaged with the head portion 25b 'of the tracing stylus shaft 25b of the measuring instrument 25.

The winding width measuring unit 30 has a guide 31 provided on the upper surface of the lower plate 13 and a moving table 32 which moves along the guide 31 in the radial direction of the can. A measuring device 33 is fixed to the upper part of the moving table 32 via a fixed lever 35, and an inverted L-shaped measuring lever 34 is rotatably supported around a shaft 34a. The measuring lever 34 has a stylus 33a of the measuring device 33 on its upper part.
A contact piece 34b for contacting the
c is provided, and this probe 34c is located above the reference roller 16 at the time of measurement. In addition, the measuring lever 34 is configured such that the stopper pin 36a does not push the probe 33a beyond a certain amount, and the spring 36b wound around the stopper pin 36a constantly urges the measuring lever 34 in a counterclockwise direction. . Further, the measuring lever 34 and the fixed lever 35 are provided in parallel at appropriate intervals so that they can be gripped at the same time.

As shown in FIGS. 3 and 4, an auxiliary rod 37 is vertically fixed to a side portion of the movable table 32, and a spring 38 is provided at a lower portion of the auxiliary rod 37 so that the auxiliary rod 37 is always on the lower plate 13 side. A stop pin 39 is provided to project the bias.
Corresponding to the stop pin 39, the side surface of the lower plate 13 is provided with a standby position hole 17 with which the stop pin 39 engages when the movable table 32 retracts along the guide 31. These auxiliary rod 37, spring 38, stop pin 39
The standby position hole 17 forms a stop member for the movable table 32. Therefore, when the measurement lever 34 and the fixed lever 35 are simultaneously gripped and moved in the right direction in FIG. 3, the measurement lever 34 rotates in the clockwise direction to lift the lower probe 34c, and the movable table 32 is moved. It moves backward, stops at the position where the stop pin 39 engages with the standby position hole 17, and enters the standby state.

Next, a mode of inspection performed by using the inspection apparatus of this embodiment will be described. First, the inspection mode of the winding thickness will be described. When inspecting the winding thickness of can 1,
Since the positions of the anvil 24 and the probe 25a of the measuring instrument 25 need to be set at an angle θ corresponding to the angle θ formed by the chuck wall of the winding tightening portion with respect to the can body, the clamp lever 23a is loosened and the support 23 The angle of the anvil 24 and the probe 25a is adjusted to a predetermined angle θ as shown in FIG.
Tilt (eg 4 ° or 6 °). Since the anvil 24 is spherical, some error in the chuck wall angle is absorbed, and accurate measurement is possible.

Next, in FIG. 1, the operating lever 26 is
Push in the direction of the arrow. Thus, first, retracted by the tip 26a of the instrument 25 shown is built in such I押 pressure spring stylus shaft 25b of the head 25b 'actuation lever 26 against the biasing force in the downward in FIG. 1 As a result, the tracing stylus 25a also retracts and separates from the anvil 24. Contact point shaft 2
In the state in which 5b is retracted, the force pushing the operating lever 26 is not transmitted to the moving base 22, so the measuring instrument 25, that is, the moving base 22 (supporting base 23) is stopped (at this time, the operating lever 26 is hinged). It rotates about the portion 26b as a fulcrum).

After that, when the actuating lever 26 is further pushed in the direction of the arrow, the tracing stylus shaft 25b retracts to the limit, and the actuating lever 26 does not rotate any more. Therefore, the force for pushing the actuating lever 26 is measured this time. The force that pushes the container 25 in the direction of the arrow serves to pull the movable table 22 (support table 23) and pull the spring 2
It is moved in the upward direction in FIG. 1 (leftward in FIG. 2) along the guide 21 against the tensile force of 7. In this way, the tracing stylus 25a of the measuring instrument 25 is retracted, and then the moving table 22 and the supporting table 23 are moved to move the anvil 24 into the groove 14
When moving to the back of a, the can can be placed in the gauge ring 15.

After the can 1 is placed in the gauge ring 15 and the can is positioned, when the actuating lever 26 is released from the rotation in the direction of the arrow in FIG.
The movable table 22 is returned to the position where the anvil 24 contacts the chuck wall of the winding tightening portion by the pulling force of, and the tracing stylus shaft 25b is further advanced by the pressing spring (not shown) in the measuring device 25. This makes the anvil 24
As shown in FIG. 5, the contact point 25a comes into contact with the chuck wall and the seaming wall of the winding tightening portion of the can 1 to measure the winding tightening thickness. In the measuring device 25, the anvil 24 and the tracing stylus 25a are previously brought into contact with each other, and the measuring device 25 is adjusted so that the zero point is obtained at this time. Therefore, when the winding thickness is inspected, how much the value displayed on the measuring device 25 when the anvil 24 and the probe 25a sandwich the winding portion deviates from the predetermined reference value of the winding thickness. Depending on whether or not

Next, the inspection mode of the winding width will be described. The measuring lever 34 and the fixed lever 35 are grasped and operated as described above, the stop pin 39 is engaged with the standby position hole 17, and the probe 34c is retracted. In this state, the can 1 is placed inside the gauge ring 15 to position the can 1. At this time, since the winding fastening portion of the can 1 is supported by the three rollers 16 at three points, accurate measurement can be performed even when the seaming panel of the winding fastening portion has undulations. .

Next, the measuring lever 34 and the fixed lever 35
When the movable table 32 is moved slightly to the left in FIG. 3 again by grasping and operating, the stop pin 39 pushes the spring 38 to disengage it from the standby position hole 17, and the movable table 32 moves to the guide 3
1 along the inner diameter of the can. Then, when the probe 34c is positioned above the cover hook radius, the grip of the measuring lever 34 and the fixed lever 35 is released, and the probe 34c is lowered. As a result, the probe 34
The roller c is brought into contact with the cover hook radius of the winding tightening portion supported on the roller 16 at three points to measure the winding tightening width as shown in FIG.

When measuring the winding width, a block gauge corresponding to the winding width of the can to be measured is placed on the reference roller in advance, and the probe 3 is attached to this block gauge.
4c is brought into contact, and the measuring device 33 is adjusted so as to show the same size as the block gauge, and the reference value is set. Therefore, the inspection of the winding width is performed depending on how much the value when the probe 34c contacts the cover hook radius deviates from the reference value.

According to the winding tightening portion inspection apparatus having the above-described structure, the anvil 24 and the measuring element 25a of the winding tightening thickness measuring unit and the probe 34c of the winding tightening width measuring unit are installed in the winding tightening portion. Since the contact pressure is always constant due to the urging force of the spring as well as the constant contact with the fixed position, accurate measurement can be performed without causing variations among measuring persons. A cylinder or the like can be used instead of the springs 27 and 36b for urging the anvil 24 and the probe 34c, and in this case as well, the contact pressure can be made constant like the spring.

Further, in the apparatus of this embodiment, the winding thickness and the winding width can be inspected at the same time, and further, only by rotating the can 1 inside the gauge ring 15, an arbitrary portion of the winding portion,
For example, by rotating the can 1 twice at 120 °, it is possible to measure at three points in the winding tightening portion. Therefore, highly accurate inspection can be performed quickly and easily.

Further, by using digital micrometers as the measuring instruments 25 and 33, misreading is eliminated, and by connecting the measuring instruments 25 and 33 to the CPU, the analysis of the inspection result is automated, the processing and creation of various data, etc. You can also do

The winding tightening portion inspection apparatus of the present invention can be constructed by only the combination of the base portion 10 and the winding tightening thickness measuring portion 20 or the base portion 10 and the winding tightening width measuring portion 30 described above. Further, the present invention includes various modifications other than the above-described embodiments within the scope of the gist of the invention.

[0032]

As described above, according to the tightening portion inspection device of the present invention, highly accurate tightening portion inspection can be performed by a simple operation.

[Brief description of the drawings]

FIG. 1 shows a plan view of an apparatus according to an embodiment.

2 shows a partially sectional side view of the seaming thickness measuring unit definitive in FIG.

FIG. 3 shows a side view of a winding width measuring unit.

FIG. 4 shows a partial view of an operating lever in a winding width measuring unit.

FIG. 5 is an enlarged view showing a state in which the anvil and the probe contact the winding tightening portion.

FIG. 6 is an enlarged view showing a state in which the probe and the roller are in contact with the winding tightening portion.

FIG. 7 shows an enlarged cross-sectional view of a winding tightening portion.

FIG. 8 shows a perspective view of a conventionally used tightening portion inspection device.

[Explanation of symbols]

 1 Can 10 Base Part 11 Base 12 Support 13 Lower Plate 14 Upper Plate 15 Gauge Ring 16 Reference Roller 17 Standby Position Hole 20 Rolling Thickness Measuring Unit 21 Guide 22 Moving Base 23 Supporting Base 24 Anvil 25 Measuring Instrument 25a Measuring Element 26 Actuating lever 30 Winding width measuring unit 31 Guide 32 Moving base 33 Measuring instrument 33a Measuring element 34 Measuring lever 34c Probe

Claims (5)

(57) [Claims] 1. A base portion provided with a gauge ring for positioning the can at a measuring position, movable in the radial direction of the can positioned at the measuring position, and constantly biased radially outward of the can by a biasing means. The moving means, the anvil attached to the moving means, and the measuring instrument are movable in the radial direction of the can, and are constantly urged inward in the radial direction of the can by a spring built in the measuring instrument. A stylus shaft having a stylus at the tip, and an actuating lever provided on the measuring instrument, the front end of which engages with the rear part of the stylus shaft, and when the actuating lever is actuated, The tracing stylus shaft is moved outward in the radial direction of the can against the biasing force of the spring, and then the moving means is moved inward in the radial direction of the can against the biasing force of the biasing means. Winding characterized by having a winding thickness measurement unit Part inspection apparatus. 2. A base portion provided with a plurality of gauge rings for positioning the can at the measuring position and a reference roller for supporting the can positioned at the measuring position; A movable table that is movable in the radial direction, a measuring instrument that is attached to the movable table, a probe that is rotatably attached to the movable table, has a probe on one side, and the other side contacts the probe of the measuring instrument. A measuring lever, a fixed lever attached to the moving means at an interval such that the measuring lever can be gripped at the same time, and a measuring lever provided between the measuring lever and the fixed lever. Urging means for urging the measuring lever and the fixed lever at the same time, the measuring lever rotates to the fixed lever side against the urging force of the urging means when the measuring lever and the fixed lever are simultaneously gripped. , Seaming portion inspection apparatus characterized by having a Makishimehaba measurement unit moving the probe in a direction away from the base portion. 3. A base portion provided with a plurality of gauge rings for positioning the can at the measuring position, and a reference roller for supporting the can positioned at the measuring position; The moving means that is movable in the radial direction and is constantly urged outward in the radial direction of the can by the urging means, the anvil and the measuring device attached to this moving means, and the movable means in the radial direction of the can. Yes, the spring built in the measuring device is constantly urged inward in the radial direction of the can, and the measuring element shaft has a measuring element at the tip, and the measuring element shaft is provided with the tip of the measuring element shaft. An actuating lever that engages with the rear part, and when the actuating lever is actuated, the tracing stylus shaft moves outward in the radial direction of the can against the biasing force of the spring, and then the moving means The diameter of the can against the urging force of the urging means A winding thickness measuring unit that is designed to move inward and inward, a moving base that is movable in the radial direction of the can positioned at the measuring position, a measuring device attached to this moving base, and A measurement lever that is movably mounted and has a probe on one side, and the other side is in contact with the probe of the measuring instrument; a fixed lever that is attached to the moving means at an interval that can be gripped simultaneously with the measurement lever; When the measuring lever and the fixed lever are simultaneously gripped, the measuring lever and the fixed lever are provided with an urging means for urging the measuring lever with a constant force in a direction in which the probe approaches the base portion. The winding tightening is characterized in that the winding lever has a winding width measuring unit for rotating the probe in the direction away from the base portion by rotating the measuring lever to the fixed lever side against the urging force of the urging means. Inspection equipment. 4. The moving means comprises a moving table which moves in the radial direction of the can, a support table to which an anvil and a measuring device are attached and which is rotatably attached to the moving table.
The device for inspecting the tightening portion described. 5. The winding tightening portion inspection device according to claim 2, further comprising a stop member that stops the movable table at the standby position.