JPH0555018U - Simultaneous automatic inspection device for trim height and bottom depth of squeezed ironing can - Google Patents

Abstract

(57) [Summary] [Purpose] In a DI can having a dome-shaped can bottom that is recessed inward, the trim height and the bottom depth are simultaneously measured. [Structure] An inspected can Z is sandwiched and held by a pair of symmetrically formed holding blocks 7 and 7 ', and a first probe 11 is lowered and brought into contact with the trimmed opening end E of the can. In step 4, the distance from the contact portion to the upper surface 3b of the table 3 is measured, and at the same time, the second probe 21 is extended from the lower side of the table to the deepest portion of the dome-shaped can bottom, and the gauge 19
Then, the distance from the contact portion to the table upper surface 3b is measured.

Description

[Detailed description of the device]

[0001]

[Industrial application]

 The present invention relates to a device for measuring and recording the trim height and bottom depth of a two-piece can, which is formed by drawing and ironing and has a trimmed opening end and a dome-shaped bottom recessed toward the opening end. ..

[0002]

[Prior Art]

 Two-piece cans currently on the market have a thick-walled open end, followed by a thin-walled body, and then a bottom, which is trimmed to a given can height. (Trimming) ───The height of the can after this trimming is called “trim height” ── On the other hand, the bottom part has a rimmed opening end to withstand the internal pressure of the contents after filling. It is formed in the shape of a dome that dents toward you (the depth of the dome is called the "bottom depth").

It is necessary to cut the trim height to an optimum size for obtaining a predetermined flange size at the time of flange forming which is a post-process, and this cutting size exceeds the allowable value, and the variation and the flange size do not reach the predetermined size. However, the normal tightening dimension cannot be obtained in the tightening process with the lid after filling the contents, resulting in leakage of the contents.

On the other hand, the bottom depth is related to the ability to counter internal pressure of the can due to the content after filling (generally referred to as “pressure resistance performance”), and generally the pressure resistance performance tends to decrease as the bottom depth becomes shallower. If the depth becomes shallower than the permissible value, the dome-shaped bottom recessed inward of the can cannot withstand the internal pressure of the can and will flip to the outside of the can, causing a so-called buckling accident.

Therefore, in order to prevent such an accident, it is necessary to properly manage the dimensions of the trim height and the bottom depth.

As a means for that, initially, the trim height and the bottom depth were separately measured by a manual work using a dial gauge, and quality control was carried out. Since it is difficult in terms of work efficiency, automatic measurement is attempted, and an example thereof is disclosed in JP-A-64-32110.

The device is made by drawing and ironing, and has a cylindrical shape with a bottom and a height from the bottom of the two-piece can to the upper edge of the side plate formed with a concave recessed toward the opening at the center of the bottom. The height of the trim can be measured by contacting the upper edge of the side edge with a probe while rotating the can, and by rotating the can while sandwiching the side plate with the probe. Thickness measuring mechanism, a bottom depth measuring mechanism that inserts a probe into the recess to measure the depth, a storage mechanism that stores the cans for each type, and remove the cans from the storage mechanism. A transport mechanism that transfers the cans to each measurement mechanism and takes out the measured cans from the measurement mechanism, and a control mechanism that determines the quality of the cans based on the measurement results by the above-mentioned measurement mechanisms, and collects each measurement result. Two-piece can dimension inspection device equipped Is.

In this device, the inspected can is taken out from the can housing section by the robot hand, first moved to the trim height measuring section, and after the height measurement, it is taken out from the measuring section by the robot hand. The thickness of the can body is measured, the thickness is measured, and then the depth of the bottom is measured. The measured values are computer-processed to determine whether they are good or bad.

[0009]

[Problems to be solved by the device]

 The above inspection equipment automates the work using a robot hand, and by computer processing, there is no variation in the measurement site and reading error of the gauge as compared to the inspection that was manually performed so far, improving the measurement accuracy. It can be said that it is effective in that the measurement work can be unmanned, and the measurement item, for example, the trim height measuring mechanism for measuring the trim height and the bottom for measuring the bottom depth. Since the depth measuring mechanism is arranged separately, when measuring both trim height and bottom depth, after measuring one, move the can to the other measuring section, and then remove → transfer for each measuring section. There is a problem that it takes time to complete a series of measurements because the process of → installation → measurement has to be performed.

In addition, in the above-mentioned inspection apparatus, when measuring several kinds of cans having different diameters, it is necessary to arrange a plurality of measuring parts for each can separately for each measuring mechanism that is separately arranged, and the measuring parts for different cans have different diameters. At present, there is room for improvement in the above-mentioned device, in which it is desired to make various kinds of cans common to one device and have general versatility.

An object of the present invention is to provide an apparatus that can automatically measure and inspect in a short time without preparing a separate measurement mechanism for each measurement item.

Another object of the present invention is to provide a device capable of significantly reducing the measurement time by simultaneously measuring the trim height and the bottom depth without transferring the can to be inspected. ..

Furthermore, the present invention measures the trim height and the bottom depth, and most of the two-piece cans on the market are large diameter cans with a diameter of 211 (about 66 mm) or 202 diameters (about 55 mm). One of the small diameter cans (for example, 180ml, 200ml, 250ml, 350ml, 500ml cans belong to 211 diameter, 135ml, 250ml cans belong to 202 diameter) The objective is to provide a device that can be easily handled and can be commonly measured, whether it is a can or a small-diameter can.

[0014]

[Means for solving problems]

 A table on which an inspected can, which is formed by squeezing and ironing and has a trimmed opening end and a dome-shaped bottom recessed toward the opening end, is placed in an upright state; A can body holding means for sandwiching and holding the inspected can placed on the table at the measurement position, and an inspected can held at the measurement position and vertically movable on the table. A can body pressing means to be pressed against the upper surface of the table, and a first measuring element which is arranged on the table so as to be vertically movable and comes into contact with the trimmed opening end of the can to be inspected which is pressed by the can body pressing means. Trim height measuring means for measuring a distance between a contact end portion of the first gauge head in contact with the opening end portion and a table upper surface, and a vertically movable unit disposed below the table, the table upper surface being provided. Protruding from and held in the measuring position. Bottom depth measurement for measuring the distance between the contact end of the second measuring element in contact with the dome-shaped bottom and the table top surface. And a means for continuously driving the respective means in a predetermined order, comparing each measured value of the trim height and the bottom depth with a preset reference value, determining pass / fail, and outputting the result to an external device. Simultaneous automatic inspection device for trim height and bottom depth of squeezing and ironing cans, which is equipped with.

In the above inspection apparatus, each of the can body holding means has a semicircular can body contact surface, and is composed of a pair of horizontally movable holding blocks that sandwich the can to be inspected in a relative manner. The pair of holding blocks can be driven by a pair of rodless cylinders that are arranged opposite to each other on the lower side of the table based on the measurement position of the inspected can. Each of the pair of rodless cylinders can be provided with a holding block support pin protruding from the table upper surface.

The inspection device may further include a rotating mechanism that presses a part of the outer peripheral surface of the can body of the inspected can held at the measurement position and rotates the inspected can by a predetermined angle.

The holding block in the above-described inspection device is composed of a pair of holding blocks for large-sized cans and a holding block for small-sized cans, and the holding block for small-sized cans can be stacked on the holding block for large-sized cans. Therefore, the inspection device normally holds the holding block for the small-sized can above the moving path of the holding block for the large-sized can and lowers the holding block for the small-sized can during inspection of the small-sized can. It is possible to further provide a holding block type changing means for stacking on a holding block for a large diameter can that is waiting, which holding block type changing means is located on the upper surface of the table behind the moving passage of the holding block for a large diameter can. For the small diameter can, which is fixed to the air cylinder and a holding block support member for the small diameter can that is fixed to the air cylinder and horizontally holds the holding block for the small diameter can. The holding block support member can be vertically moved by the air cylinder.

An embodiment of the present invention will be described below with reference to the drawings.

Example 1

1 to 4 relate to the apparatus of this example in a state where the inspected can is held at the measurement position. FIG. 1 is a front view, FIG. 2 is a right side view, and FIG. 3 is a part (trim height measurement). FIG. 4 is a schematic perspective view showing the holding block and related members.

Explaining the structure of the device of the present example, an object to be formed having a trimmed opening end E formed by drawing and ironing and having a dome-shaped bottom B recessed toward the opening end. A table 3 on which an inspection can Z (hereinafter simply referred to as a can) is placed in an upright state is fixed to columns 2 fixed to four corners of a rectangular base 1, and below the table. A can body holding means driving unit, a bottom depth measuring unit and its driving unit are arranged, and a can body holding unit, a trim height measuring unit and its driving unit are arranged at the upper part.

The can body holding means is composed of a pair of holding blocks indicated by reference numerals 7 and 7 ′, and each holding block 7 and 7 ′ has a semicircular shape so that the can can be held at the measuring position on the table 3. It is a segment having a can body contact surface 7S (see FIGS. 3 and 4), and the contact surface 7S relatively surrounds and holds the outer periphery of the body of the can Z. Therefore, the holding blocks 7 and 7'are horizontally movable along the upper surface of the table 3 so that the can can be clamped or unraveled.

A drive mechanism therefor is provided below the table 3. That is, a plate 8 is fixed and hung on the lower surface of the table 3 over substantially the entire width of the front surface thereof, and a pair of rodless cylinders 9 and 9'are attached to the plate 8 so as to face each other left and right. The rodless cylinders 9 and 9'include L-shaped rodless cylinder moving bases 9a and 9'a, respectively, when viewed from the side, as can be seen from FIG. One side of the movable table approaches the lower surface of the table 3 and is arranged parallel to the lower surface of the table 3, and two holding block support pins 10, 10; 3 are attached so as to project from the table upper surface 3b through four elongated holding block support pin moving holes 3a, 3a; 3'a, 3'a which are formed symmetrically with respect to the measurement position. ing.

The holding block support pins 10, 10; 10 ', 10' are inserted into through holes 7a, 7'a formed in the rear portion of the contact surface 7S of the holding blocks 7, 7 '. (See FIG. 4) Each holding block 7, 7'is held on the table top surface.

With such a configuration, the rodless cylinders 9 and 9 ′ bring the moving bases 9a and 9′a, to which the holding block support pins 10 and 10 ′ are attached, toward (or away from) each other. When moving in the same direction, the holding blocks 7, 7'integrated with the moving table by the holding block support pins can also move in a direction toward (or away from) each other. When approaching each other, the holding blocks 7 and 7 ′ move from the left to the right in the facing direction, and eventually come into contact with each other to hold the cans by the respective can body contact surfaces 7S and 7S, and place the can at the measurement position. Will be held.

Next, the means for measuring the trim height of the can thus held at the predetermined position and the can body pressing means for holding and stabilizing the can during the measurement will be described.

These two means are arranged to work together. That is, in the vicinity of the measuring position of the can, a leg member 6 having a height higher than the can height of the can is fixed and erected on the table upper surface at a position where it does not interfere with the movement of the holding blocks 7 and 7 '. The leg member 6 to the arm member 5 are horizontally fixed so as to project above the can held in the measuring position by the holding blocks 7 and 7 '. The leg member 6 and the arm member 5 form a common support member C 1.

Then, as shown in FIG. 2, the open end E of the can Z held at the measurement position is pressed from above from the upper end of the arm member 5 across the can diameter, and the can is opened. A weight block 13 for pressing against the upper surface of the table is provided at the lower end, and a rod 13b which is movable up and down is attached to the arm member 5, and an opening which is not covered by the weight block 13 beside the rod 13b. A digital gauge 4 having a flat top end which is in contact with the end E and which is vertically movable and is vertically movable is fixed to the arm member 5 vertically. This gauge 4 measures the distance between the upper surface of the table and the tip end surface of the first tracing stylus in contact with the opening end E 1.

Further, an air cylinder 12 is erected and fixed to the arm member 5 alongside the digital gauge 4 along with the digital gauge 4. This air cylinder 12 has a flange portion 12a at the tip extending downward from the arm member 5, and this flange portion 12a is engaged with the flange portion 11a of the first probe 11 and the flange portion 13a of the weight block. As the air cylinder 12 moves up and down, the first probe 11 and the weight block 13 also move up and down.

Next, the bottom depth measuring means will be described. Another through hole 3c is formed in the table 3 at a position corresponding to the center of the bottom of the can Z held by the holding blocks 7 and 7'and held at the measurement position (this corresponds to the deepest part of the dome). A small plate 20 having a through hole communicating with the through hole 3c is fixed to the lower surface of the table.

A digital gauge 19 for bottom depth measurement having a probe (second probe) 21 passing through these through holes is attached to the tip of the small plate 20. The digital gauge 19 moves up and down by an air cylinder 22 fixed to the base 1 via a release 23 dedicated to the digital gauge. That is, when the rod of the air cylinder 22 moves in the arrow Y 2 direction (FIG. 2), the release 23 is pushed and the second probe 21 is raised. It should be noted that, when the tip of the probe 21 reaches the deepest part of the dome-shaped bottom of the can Z, the digital gauge 19 has a distance between the contact end of the probe 21 and the table upper surface 3b, that is, the dome. It measures the depth.

In FIG. 3, reference numerals 31 and 31 ′ are can detection sensors.

In addition, the present apparatus continuously drives the can body holding means, the can body pressing means, the trim height measuring means, and the bottom depth measuring means in a predetermined order to measure each trim height and bottom depth. Is provided with a control mechanism for comparing the measured value with a preset reference value to judge whether the result is good or not and outputting the result to the outside, but it is not shown in the drawing because a known one can be used.

Next, the operation of the apparatus of this example will be described. Before starting the measurement, the first probe 11 and the weight block 13 are in the upper position (standby position), and the rodless cylinder moving bases 9a and 9'a are opened to the left and right respectively when viewed from the front. The second probe 21 is in the lower position (standby position).

On the table 3 of the apparatus in the standby state as described above, the holding block support pins for moving the elongated holes 3a, 3a, 3'a, 3'a and the second measuring element through hole 3c are used as marks. Then, the can Z is placed in the upright state, the start switch of the operation panel (not shown) is pushed down, and the presence of the can is confirmed by the can detection sensors 31 and 31 '. If confirmed, an electric measurement start signal is sent to the electric circuit that controls the device, and each part starts operating.

First, the movable bases 9a and 9'a of the rodless cylinders at the left and right positions are driven in the facing and approaching directions, respectively, and the holding blocks 7 and 7'are closed and placed on the table 3. The can Z is clamped and held at a predetermined measuring position. Next, the rod of the air cylinder 12 is driven downward, and accordingly, the weight block 13 engaged with each other via the collar portion 12a of the air cylinder 12 and the probe 11 of the digital gauge 4 descend. The lower surface of the weight block 13 and the lower surface of the probe 11 contact the open end E of the can Z 2. At this time, the weight of the weight block 13 (450 g in this example) presses the can bottom of the can on the table top surface 3b without any gap, and thus the pushing force of the second probe 21 for bottom depth measurement is applied. In addition, the fall of the can due to the moment during trim height measurement is prevented.

Next, the air cylinder 22 is actuated and the release 23 is pushed, the movement is transmitted to the digital gauge 19, the probe 21 rises, and hits the deepest part of the dome-shaped bottom of the can.

The measured value of the digital gauge 4 in this state is the trim height, the measured value of the digital gauge 19 is the bottom depth, and each measured value is taken in by the control circuit (not shown), It is sent to a computer (not shown).

After the measurement is completed, the procedure reverse to the above is taken. That is, the rod of the air cylinder 22 is driven in the direction opposite to the arrow Y, the release 23 is returned accordingly, the tracing stylus 21 is lowered, and is separated from the deepest part of the dome-shaped bottom, and the upper surface 3 b of the table 3 is moved. Go down. Further, the rod of the air cylinder 12 is driven to the upper position, and the weight block 13 and the first stylus 11 also rise. Next, the movable bases 9a and 9'a of the rodless cylinders 9 and 9'are driven leftward and rightward, respectively, in the opening direction to open the holding blocks 7 and 7 ', and return to their original positions. On the other hand, the computer that sent the measured value compares the measured value with the tolerance set in advance for that computer, judges whether the measured value is within the acceptable value, and if it is within the acceptable value, it passes. If it exceeds the permissible value, it will be judged as invalid and an electrical signal will be output to the outside, and at the same time, it will be printed and output.

Example 2

In the first embodiment, the trim height measuring element is one, and therefore the trim height measuring value is the simplest one which can be obtained. Since even one measured value is usually in time, such a device has sufficient practicality, but when conducting careful measurements, it is also required to measure at several points.

In this example, as one of the measures, after the first trim height measurement is performed while the can is held at the measurement position, the can can be rotated by a certain angle in the upright state and the next measurement can be performed. I will explain what I did.

However, as shown schematically in FIG. 5, for example, the weight block 13 is formed into a triangular plate having a size such that each tip protrudes from the opening end of the can Z, while the first probe 11 is set to 120. If 3 (11A, 11B, 11C) are arranged at intervals and 3 air cylinders 12 (12A, 12B, 12C) are arranged accordingly, trim height measurement can be performed at 3 points at a time. However, here, the number of the probe 11 is one, and the case where the can body is rotated by 120 ° and the measurement is performed three times is shown.

This will be described with reference to FIG. 10, which is a partial cross-sectional view of another example of the inspection device of the present invention including a can body rotating mechanism. Many such rotating means are known, but an example thereof is shown here.

Reference numeral 14 denotes a rotary roller that is pressed against the outer peripheral surface of the can Z held on the upper surface of the table, and is fixed to a shaft 18 extending below the table. The shaft 18 is connected to the output shaft of the pulse motor 16 via gears 17, 17, and the pulse motor 16 is supported by the bracket 15. The bracket 15 is attached to a moving base 30 of an air-driven linear slide 29 fixed to a bracket 29a fixed to the lower surface of the table 3. In the figure, reference numeral 70 'is a holding block for releasing the rotary roller 14, 90'a is a moving base for releasing the bracket 15, and 30a is a hole for moving the roller 14.

The moving base 30 of the air-driven linear slide 29 can be moved to the left and right in the drawing (FIG. 10). Therefore, together with the bracket 15 fixedly mounted on the moving base 30, the pulse motor 16, the gear 17, and the shaft. 18, the rotary roller 14 can move to the left and right.

When the first measurement is completed, the probe 21 is lowered, the weight block 13 and the probe 11 are raised, and the air-driven linear slide 29 is driven to the left side in the drawing. Then, the rotating roller 14 is moved to the left and brought into pressure contact with the outer peripheral portion of the can Z. In this state, the pulse motor 16 rotates the can by a distance corresponding to ⅓ of the outer circumference of the can, so that the rotating roller 14 is rotated with a preset number of pulses. By repeating this rotation three times, the trim height is measured at three points on the open end E of the can.

Example 3

In the first embodiment, a pair of holding blocks 7 and 7 ′ of the can body is prepared and measured, but in this case, the can is only a can having a certain can diameter. However, in the case of a two-piece can, the can diameter is not limited to one. Of course, there is no limit, and most of the two-piece cans currently on the market have a can diameter of 66 mm (capacity 180, 200, 250, 350, 500 ml) or 55 mm (capacity 135, 250 ml). is there. Therefore, if these two types can be supported, it will be possible to measure the majority of two-piece cans with one unit. This example shows an apparatus provided with means for that purpose.

This example is different from the apparatus of Example 1 in that two types of can holding blocks, one for 55 mm and one for 66 mm, are prepared, and a means for changing the type is provided. The following description will focus on this point.

FIG. 6 is a front view of the apparatus of this example, FIG. 7 is a plan view thereof (however, trim height measuring means is omitted), and FIG. 8 is a schematic explanatory view showing two types of holding blocks and related members. FIG. 10 is an explanatory view of a holding block type changing operation, and FIG. 10 is a partial cross-sectional view (partially omitted) of the apparatus of this example equipped with a can body rotating mechanism (described above). In these figures, the same reference numerals as in FIGS. 1 to 4 indicate the same parts.

In these figures, 7 and 7 ′ are used as holding blocks for large diameter cans, and blocks formed for small diameter cans are designated as 24 and 24 ′.

The holding blocks 24, 24 ′ for small diameter cans are plate materials having a shape very similar to that of the other holding blocks 7, 7 ′, and as shown in FIGS. Therefore, each segment has a semicircular can body contact surface 24S. In this case, the circle formed by the two contact surfaces 24S of the holding blocks 24, 24 'is such that the circle formed by the two contact surfaces 7S of the holding blocks 7, 7'holds the outer circumference of the 66 mm can. Hold the outer circumference of a 55 mm can. The holding blocks 7, 7 ', 24, 24' are formed so that the centers of their Rs coincide with each other. Further, the holding blocks 24, 24 'have a pair of through holes 24a, 24'a for receiving the holding block support pins 10, 10', respectively, and the holding blocks 24, 24 'on the holding blocks 7, 7'are provided by these holding block support pins. Can be stacked on top of each other.

The holding blocks 24, 24 ′ which have been processed for small diameter cans having a diameter of 55 mm are horizontally attached to the holding blocks supporting members 25, 25 ′ for small diameter cans so that they can be inserted and removed horizontally, as is known from FIGS. It

On the other hand, the air cylinders 28, 28 'are fixed to the upper surface 3b of the table at the rear of the moving passages of the holding blocks 7, 7'for large cans (FIGS. 6, 7), and the air cylinders 28, 28'. L-shaped support members 26, 26 'when viewed from the front are also erected and fixed on the upper surface of the table on both sides (Fig. 7) (Fig. 6). Further, linear slides 27, 27 'are attached to the vertical wall portions of the support members 26, 26', respectively, and the holding block support members 25, 25 'for the small diameter cans are fixed to the linear slides 27, 27'. Has been done.

As can be understood from FIG. 8, the holding block support member 25 for a small diameter can has a horizontally long plate 25-2 having linear slides 27, 27 attached to both ends thereof, and the linear slide 27. , 27 and L-shaped members 25-1 fixed back to back and horizontally holding the holding block 24 (in FIG. 8, the block 24 is located at a position slightly pulled out from the L-shaped member 2 5-1). (As depicted), and another L-shaped member 25-3 fixed between the linear slides 27, 27 and fixed to the rod tip of the air cylinder 28. Therefore, when the rod of the cylinder 28 moves up and down, the support member 25 also moves up and down. The holding block support member 25 'for a small-sized can, which is paired with the support member 25, has the same structure.

It should be noted that the holding block support members 25, 25 ′ for small diameter cans have a space below the holding blocks 24, 24 ′ for small diameter cans to hold the holding blocks 7, 7 ′ for large cans. As shown in FIGS. 6 and 10, the holding blocks 7 and 7'for large-sized cans are set above the moving paths.

To describe the operation of the apparatus of this example, the rods of the air cylinders 28, 28 ′ are at the upper side (FIG. 6) until the measurement of the 55 mm can is started, and the holding block for the large diameter can 7, I try not to hurt the horizontal movement of 7 '.

When a small-diameter can enters the line, the air cylinders 28 and 28 'are operated and the support members 25 and 25' are lowered according to the signal. This operation can be easily done by inputting in advance the type of product produced for each line into the computer equipped with this device.

That is, as shown in FIG. 9, the holding block 7 for large-diameter cans (the same applies to 7 ′, so only the following 7 will be described) is retracted from the measurement position, and the small-diameter cans are moved. It is made to stand by under the holding block 24 for use. Next, the holding block support member 25 for small-sized cans descends while holding the holding block 24 for small-sized cans (FIG. 9 (A)), and the holding block for the large-sized cans below the holding block for the holding block support pins 24a. The support pin 10 penetrating 7 is inserted (FIG. 9 (B)), and the two large and small holding blocks 7, 24 are overlapped. When the rodless cylinder 9 is operated in that state, the holding block 24 for small-sized cans is pulled out from the holding block support member 25 for small-sized cans in a state of being stacked on the holding block 7 for large-sized cans. When the can body contact surface 24S comes into contact with the outer circumference of the can when the movable table 9a of 9 moves, the can is clamped together with the small diameter can holding block 24 'that has moved from the opposite direction, and the can is placed at the measuring position. Hold. In this case, the holding block 7 for large-sized cans on the lower side is merely a spacer (FIG. 9 (C)).

The trim height and bottom depth of the can thus held at the measurement position are determined by the same procedure as in the first embodiment.

After the measurement of the small diameter can (55 mm) is finished, when the measurement of the 66 mm can is performed again, the holding blocks 24, 24 ′ for the small diameter can are set to the large size, contrary to the procedure described with reference to FIG. While holding the small diameter can holding blocks 7 and 7 ', retract them to the small diameter can holding block support members 25 and 25' waiting at the lowered position to make the small diameter can holding blocks 24 and 24 'L-shaped. Inserting into the members 25-1 and 25'-1 to bite them, then raising the rod of the cylinder 28, pulling out the holding blocks 24 and 24 'for small diameter cans from the support pins 10 and 10', The holding blocks 7 and 7'are held at positions that do not hinder the movement of the holding blocks 7, 7 '.

[0063]

[Effect of the device]

 Since the present invention can measure the trim height and the bottom depth at the same time while holding the inspected can at the measuring position with the can holding block, it is not necessary to move the inspected can to the measurement point for each measurement item. It is possible to measure more quickly. In addition, when measuring cans with different can diameters, prepare one for the large-body can and one for the small-diameter can as a can-holding block. By stacking holding blocks for small-diameter cans on top of each other, it is possible to easily deal with them, and it is possible to deal with them with one device.

[Brief description of drawings]

FIG. 1 is a front view of an embodiment of the device of the present invention.

[Figure 2] Right side view

FIG. 3 is a plan view (partially omitted)

FIG. 4 is a schematic perspective view showing a holding block and related members.

FIG. 5 is an explanatory diagram when three trim height measuring heads are provided.

FIG. 6 is a front view of another embodiment of the device of the present invention.

FIG. 7 is a plan view (partially omitted)

FIG. 8 is a schematic perspective view showing two types of holding blocks and related members.

FIG. 9 is an explanatory diagram of a holding block type changing operation.

FIG. 10 is a partial cross-sectional view (partially omitted) of an apparatus including a can body rotating mechanism.

[Explanation of symbols]

Z ... Inspected can B ... Domed bottom part 3 ... Table 3a, 3'a ... Holding block support pin moving hole 3c ... Second measuring element through hole 5 ... Arm member 6 ... Leg member 7, 7 ', 24 , 24 '... Can body holding block 7S, 24S ... Semi-circular can body contact surface 7a, 7'a, 24a, 24'a ... Holding block support pin hole 9, 9' ... Rodless cylinder 9a, 9 ' a ... its moving base 10, 10 '... holding block support pin 25, 25' ... holding block support member for small diameter can 27, 27 '... linear slide 13 ... weight block 4, 19 ... digital gauge 11 ... first measuring element 12 ... Air cylinder 21 ... Second probe 22 ... Air cylinder 14 ... Rotary roller 16 ... Pulse motor

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[Procedure amendment]

[Submission date] February 18, 1992

[Procedure Amendment 1]

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[Name of item to be corrected] Claim 7

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[Figure 10]

Claims (8)

[Scope of utility model registration request] 1. A to-be-inspected can, which is formed by squeezing and ironing, has a trimmed opening end, and has a dome-shaped bottom recessed toward the opening end, is placed in an upright state. A table, a can body holding means for sandwiching and holding the inspected can placed on the table at the measurement position, and an inspected can that is vertically movable on the table and is held at the measurement position. A can body pressing means for pressing against the table upper surface, and a first body arranged so as to be vertically movable on the table and in contact with a trimmed opening end of the inspected can pressed by the can body pressing means. Trim height measuring means for measuring a distance between a contact upper end of the first measuring head contacting the opening end of the first measuring head and a table upper surface; The measurement position A bottom depth for measuring a distance between a contact end portion of the second measuring element in contact with the dome-shaped bottom portion and a table upper surface, the second measuring element being in contact with the deepest point of the dome-shaped bottom portion of the held inspection can. Control means for continuously driving the measuring means and each of the means in a predetermined order, comparing each measured value of the trim height and the bottom depth with a preset reference value, and determining whether the result is good, and outputting the result to the outside. Automatic trimming height and bottom depth automatic inspection device for squeezing and ironing cans, which is equipped with a mechanism. 2. The can body holding means comprises a pair of horizontally movable holding blocks each having a semicircular can body contacting surface and holding the can to be inspected therebetween. Item 1. A simultaneous automatic inspection device for trim height and bottom depth of a squeezed ironing can. 3. The diaphragm according to claim 2, wherein the pair of holding blocks are driven by a pair of rodless cylinders that are arranged so as to face each other on the lower side of the table with reference to the measurement position of the inspected can. Simultaneous automatic inspection of trim height and bottom depth of ironing can. 4. The automatic simultaneous inspection device for trim height and bottom depth of a drawn and ironed can according to claim 3, wherein each of the pair of rodless cylinders is provided with a holding block support pin protruding from the upper surface of the table. 5. The squeezing and ironing apparatus according to claim 1, further comprising a rotating mechanism that presses a part of an outer peripheral surface of the can body of the inspected can held at the measurement position and rotates the inspected can by a predetermined angle. Simultaneous automatic inspection device for can trim height and bottom depth. 6. The holding block comprises a pair of holding blocks for a large diameter can and a holding block for a small diameter can, respectively. The holding block for a small diameter can is stackable on the holding block for a large diameter can. 3. The automatic simultaneous inspection device for trim height and bottom depth of a drawn and ironed can according to claim 2. 7. A holding block for a small diameter can is usually held above the moving passage of the holding block for a large diameter can, and the holding block for the small diameter can is lowered at the time of inspection of the small diameter can to wait for the large diameter can. The simultaneous trim height and bottom depth automatic inspection device for a drawn and squeezed can according to claim 8, further comprising a holding block type changing means that is stacked on the holding block. 8. The holding block type changing means is an air cylinder fixed to an upper surface of a table behind a moving passage of the holding block for a large diameter can, and is fixed to the air cylinder to horizontally hold the holding block for a small diameter can. 10. The automatic simultaneous inspection device for trim height and bottom depth of a squeezing and ironing can according to claim 9, comprising a holding block support member for a small diameter can that bites, and the holding block support member for a small diameter can move up and down by the air cylinder.