JPH0440276B2 - - Google Patents

Description

[Detailed Description of the Invention] (Industrial Application Field) The present invention is directed to a roll-on capper, a crown capping machine,
This invention relates to a lid tightening device that can also be used as a screw cap.

(Prior Art) A conventional roll-on cap is shown in Figs. 5 and 6, and a conventional capping machine is shown in Figs. 7 and 8.

A conventional example of a roll-on capper is explained with reference to FIGS. 5 and 6. 1 is a cylindrical support sleeve fixed to a base (not shown), and 2 is the support sleeve 1.
3 is an upper cam support fixed to the upper cam support 3, and 4 is an upper part having a cam groove fixed to the upper cam support 3 with bolts or the like. The annular rail 5 is a turntable, and the turntable 5 is fitted into the support sleeve 1 and connected to a drive device (not shown).

6 is a turret hub (mounting member) fixed to the turntable 5, 7 is a bottle gripping device,
The bottle gripping device 7 is placed on the turntable 5. Further, reference numeral 8 denotes a bottle having a spiral groove on the outer periphery of the bottle mouth, and the bottle 8 is held by a bottle gripping device 7.

8' is a roll-on cap made of a metal plate such as aluminum, and 9 is an upper cam support 3.
10 is a fixed hub fixed to the turret support sleeve 9 with bolts or the like; 11 is a sun gear held between the turret support sleeve 9 and the fixed hub 10; 12 is a sun gear held between the turret support sleeve 9 and the fixed hub 10; A lower annular rail having a cam groove fixed to a fixed hub 10 by bolts or the like; 13 a ball bearing held between an upper cam support 3 and a turret support sleeve 9; 14 a turret frame; is fastened to the turret hub 6 with bolts or the like, and its upper portion is held by a ball bearing 13.

A cam floor 15 has two large and small rolls that are engaged with the cam groove of the upper annular rail 4, and a plurality of cam floors 15 are arranged on the circumference of the turret. Further, reference numeral 16 denotes a support yoke which is movable in the vertical direction within a slot (not shown) of the turret frame 14 which is suspended and supported by the cam floor 15;
17 is a housing loosely fitted to the support yoke 16, 18 is a nut screwed to the housing 17,
19 is a compression coil spring attached to the support yoke 16 and the housing 17; 20 is a shaft fitted and fixed to the housing 17; 21 is a nut screwed to the coaxial shaft 20; 23 is a ball bearing attached to the housing 17; Reference numeral 23 denotes a spindle sleeve. The spindle sleeve 23 is loosely fitted onto the shaft 20, fitted into a ball bearing 22, and supported by a C-shaped stopper.

A planetary gear 24 is fixed to the spindle sleeve 23, and the planetary gear 24 meshes with the sun gear 11.

A cam floor 25 is engaged with a cam groove of the lower annular rail 12, and a cam floor 26 is suspended and supported by the cam floor 25, and is loosely fitted into the spindle sleeve 23 and moves vertically in a slot (not shown) of the turret frame 14. Possible sleeve,
27 is a body loosely fitted into the spindle sleeve 23 and screwed to the sleeve 26, and 29 is the same body 28.
A pivot shaft 30 is fixed to the upper end of the pivot shaft 29, a pivot arm 31 is fixed to the lower end of the pivot shaft 29, a cam roller 32 is pivotally supported by the pivot arm 30, 33 is pivot arm 31
This forming roller 33 is urged upward by the elastic force of a spring (not shown).

34 is a pressure block, and this pressure block 34
has a built-in small plunger etc. which is screwed onto the shaft 20 and is elastically attached to the same shaft 20. Also 3
5 is a head for a roll-on cap, and this head 35 for a roll-on cap is connected to each of the above-mentioned parts 27 to 3.
It has 34 built-in.

35' is a spindle assembly, and this spindle assembly 35' houses the above-mentioned parts 15-26, 35.

Next, the operation of the roll-on cap shown in FIGS. 5 and 6 will be explained. When the turntable 5 is rotated by a drive device (not shown), the turntable 5
The turret frame 14 integrated with the turret frame 14 also rotates, and the rotation of the turret frame 14 causes the cam floor 15 engaged with the cam groove of the upper annular rail 4 to move the roll-on cap head 34 up and down.

When the turret frame 14 rotates, the planetary gear 24 rotates, causing the roll-on cap head 34 to rotate, but the conical cam 27 and pressure block 34 do not rotate.

On the other hand, due to the rotation of the turret frame 14,
A cam floor 25 engaged with a cam groove in the lower annular rail 12 causes the conical cam 27 to move up and down. When the conical cam 27 descends relative to the cam roller 32, the cam floor 3 moves against a spring device (not shown) that presses the cam floor 32 against the conical cam 27.
2 moves on the large diameter portion of the conical cam 27 while rotating, and the pivot arm 30 rotates. The reverse is also true.

The rotation of the pivot arm 30 is transmitted to the pivot arm 31 via the pivot shaft 29, and the pivot arm 31 is rotated and the forming roller 3 is rotated.
3 in and out of the axis of the roll-on cap head 35.

The operation from when the bottle 8 into which the roll-on cap 8' is fitted is gripped by the bottle gripping device 7 until the capping is completed is as follows.

First, the roll-on cap head 35 descends, and the tip of the pressure block 34 presses the roll-on cap 8' by the elastic force of the spring built into it, and when it descends further, the spring 19 of the spring 19
The elastic force _F1 forms the top of the roll-on cap 8' as shown in FIG. causes the cam roller 32 to come into pressure contact with the outer periphery of the roll-on cap 8'.

At this time, since the roll-on cap head 35 is rotating with respect to the bottle 8, if the trough of the spiral groove of the bottle 8 and the pressure contact part of the forming roller 33 match, the roll-on cap 8' is deformed and then teeth,
The forming roller 33 is guided in rotation by the spiral groove of the bottle 8 until it reaches the end of the spiral groove and is formed into a screw cap shape.

Thereafter, the conical cam 27 descends relative to the cam roller 32 to release the forming roll 33 from the closed roll-on cap 8', and further raises the roll-on cap head 35 to carry out the next operation such as discharging the bottle 8. Complete the preparations.

Since a plurality of roll-on cap heads 35 are arranged around the circumference of the turret frame 14, each of them performs the above-mentioned capping action while the turret frame 14 rotates once, and the roll-on cap heads 35 perform the above-mentioned capping action while the turret frame 14 rotates once. Actions such as bottle evacuation are also performed.

Next, a conventional example of a crown capping machine will be explained with reference to FIGS. 7 and 8. The crown capping machine can be used by removing the roll-on cap head 35 of the roll-on cap shown in FIGS. 5 and 6 and attaching the crown tightening head 46, or by attaching the spindle assembly 35' to the spindle assembly ’ and use it.

36 is a capping bottle held by the bottle gripping device 7, 37 is a crown, 38 is a sleeve screwed onto the spindle sleeve 23, and 39 is the same sleeve 3.
8 is a ball bearing attached, 40 is a base body, and the same base body 4
0 is fitted in a ball bearing 39. Further, adjacent base bodies are arranged so as to restrict their rotation by the shape of the base bodies themselves (not shown).

41 is a ring fixed to the base 40 with bolts or the like, 42 is an aperture ring held between the base 40 and the ring 41, 43 is a crown table fixed to the ring 41 with bolts or the like, 44 is the base 40 and the aperture ring 42 45 is a compression coil spring interposed between the base body 40 and the knockout plunger 44; 46 is a crown head incorporating each of the above-mentioned parts 38 to 45;
46' is a spindle assembly incorporating the above-mentioned parts 15-26, 46.

The functions of the parts other than the crown head 46 are the same as those of the roll-on capper.To explain only the functions of the crown head 46, the turret frame 1
4 causes the planetary gear 24 to rotate, but since the crown head 46 has a built-in bearing 39 and the base body 40 is restrained from rotating, the lower end of the crown head 46 does not rotate.

When the crown head 46 descends, the crown table 43 is supplied in advance from a chute (not shown).
The crown 37 placed above comes into contact with the top of the bottle 36, and then the knockout plunger 44 presses against the crown 37 due to the elastic force of the spring 45. When the crown head 46 further descends, the aperture ring 42 contacts the top of the bottle 36. 37, the base portion of the crown 37 is deformed as shown in FIG. 8 by the elastic force of the spring 19, and capping is completed.

At this time, the spring 19 has been replaced with a spring with a larger repulsive force, and the cap is plugged with the repulsive force _F2 . When the crown head 46 rises, the knockout plunger 44 releases the corked bottle 36 from the crown tightening head 46 due to the elastic force of the spring 45.
Complete preparations for the next task.

(Problems to be Solved by the Invention) As mentioned above, the roll-on caps shown in FIGS. 5 and 6 have the following problems. That is, () It can be used for the crown capping machine shown in Figures 7 and 8, but
Cannot be used for Screw Cap.

() The vertical loads required when closing the roll-on cap and capping the cap are F ₁ = 400Kg and F ₂ respectively.
= approximately 200Kg, and it is practically impossible to share the compression spring, so spindle assembly 3
It is necessary to replace 5' and 46', and switching is troublesome.

() Even though the spindle assembly 46' should not rotate when capping, it is structurally impossible to stop the rotation, so a rotation stopping means is provided at the tip of the crown tightening head 46. Crown head 46 is necessary and is installed in large numbers.
This makes the structure complex and increases production costs.

() When the turret frame 14 rotates, the planetary gear 24 rotates and the roll-on cap tightening head 35 rotates. Therefore, when the speed of the roll-on cap changes, the rotation of the roll-on cap head 35 rotates. The number of revolutions also changed proportionally, and the closing speed of the roll-on cap also changed, resulting in a problem that stable closing performance could not be obtained.

The present invention is proposed in view of the above-mentioned problems, and its purpose is to provide a roll-on capacitor,
Can be used as a crown capper and screw capper. Furthermore, it is possible to easily switch to a roll-on capper, a crown capping machine, and a screw-on capper. Furthermore, manufacturing costs can be reduced. Another object of the present invention is to provide a lid tightening device that can obtain more stable lid tightening performance.

(Means for Solving the Problems) In order to achieve the above object, the capping device of the present invention includes a turntable 5 that rotates horizontally around a vertical support 48 to convey a container, and 48 and the turntable 5
A support member 58 that moves horizontally around the support column 47 together with a cam 4 in which cam grooves are formed with different relative distances from each other, and a cam floor 15 that engages with the cam groove in synchronization with the turntable 5.
, a rod 67 supported by the support member 58 so as to be rotatable about a vertical axis, and a rod 67 which revolves around the support 48 in synchronization with the turntable 5 and which supports a roll-on cap and a screw cap. a motor 57 that rotates when used as a capping machine, but stops when used as a crown capping machine;
Power transmission means 57', 73, and 72 transmit the rotation of the motor 57 to the rod 67 to rotate the rod 67 about the vertical axis, and a roll-on cap head that descends while rotating to tighten the lid. 74, a crown head 80 that descends without rotating to tighten the cap, and a roll-on cap head 92 that descends while rotating to tighten the cap,
One of the dedicated heads 74, 80, 92 is detachably attached to the lower part of the rod 67.

(Example) Next, the lid tightening device of the present invention will be explained with reference to the embodiment shown in FIGS. 1 to 4. FIG. Fig. 3 shows the case where the capping device in Fig. 1 is replaced with a crown capping machine, Fig. 3 shows the case where the capping device in Fig. 1 is replaced with a screw capper, and Fig. 4 shows the case where the capping device in Fig. 1 is replaced with a screw capper. Indicates the capping status of the device.

In these figures 1 to 4, figures 5 to 8
The same reference numerals are used for parts that are the same as or similar to those shown in the figures. Below, the fifth to eighth
Points that differ from the diagram will be explained.

47 is a support sleeve (part that replaces support sleeve 1), 48 is a column (part that replaces column 2), 49
is a fixed hub fixed to the center 48, 50 is a turret hub fixed to the turntable 5, 51 is a plurality of turret frames fixed to the outer circumference of the turret hub 50, and 52 is pivotally supported by the support column 48. A turntable is fixed to the turret frame 51, and 53 is a sleeve fixed to the turntable 52.

a turret frame 55 whose turret frame 54 is pivotally supported by the support 48 and which is fixed to the sleeve 53;
is an O-ring that seals between the turret frame 54 and the column 48, and 56 is the turret frame 5.
This is a slip ring mounted between the support 48 and the support 48.

57 is a variable torque motor such as a servo motor fixed to the turntable 52, and a control cable of the variable torque motor 57 is connected to the slip ring 56.
and extends to a control panel (not shown).

57' is a timing pulley 58 fixed to the output shaft of the variable torque motor 57; a piston is suspended and supported by the cam floor 15 and loosely fitted to the turret frame 54; 60 is a cap fixed to the cylinder 58 with bolts, etc. It is.

61 is a housing (corresponding to the housing 17) that is fixed to the piston 59, 62 is a compression coil spring that applies elastic force to the piston 59 within the cylinder 58, and 63 is a turret frame that is fixed to the cylinder 58. The key is engaged in the groove 54, and the key 64 is the cylinder 58 and the housing 6.
1, 65 is an O-ring that seals between the cylinder 58 and piston 59, and 66 is an O-ring that seals between piston 59 and housing 61.

67 is a shaft (shaft 20
), 68 is the turret frame 5
1 (corresponding part of the sleeve 26), an air passage (flexible tube) 69 extending from the cylinder 58 to the top of the column 48;
A spindle sleeve 70 (a component corresponding to the spindle sleeve 23) is loosely fitted onto the shaft 67 and fitted into the bearing 22.

71 is a key fixed to the spindle sleeve 70, 72 is a timing pulley fixed to the spindle sleeve 70, 73 is an endless timing belt suspended between the pulley 57' and the pulley 72, and 74 is a head for the roll-on cap. in,
The roll-on cap head 74 incorporates each of the above-mentioned parts 28-34.

74' is a spindle assembly (an assembly corresponding to the spindle assembly 35'), 75 is a base screwed into the spindle sleeve 70 (a part corresponding to the sleeve 38), and 76 is a crown table (corresponding to the crown table 43). parts), the same crown table 76
are fixed to the base body 75 with bolts or the like, and are arranged so that adjacent ones restrain rotation on their axis.

Reference numeral 77 indicates an aperture ring (component corresponding to the aperture ring 12) clamped and fixed between the base 75 and the crown table 76, and 78 indicates the base 75 and the aperture ring 77.
A knock-out plunger (a part corresponding to the knock-out plunger 44) inserted between the
A compression coil spring 80 (component corresponding to the spring 45) interposed between the base body 75 and the knockout plunger 78 is a head for the crown, and the head for the crown 80 incorporates each of the above-mentioned parts 75 to 79. are doing.

81 is a spindle assembly (spindle assembly 4
6), which differs from spindle assembly 74' in a crown head 80. Further, 82 is a base body screwed onto the spindle sleeve 70 (component corresponding to the sleeve 38), 83 is a pivot arm pivotally supported by the base body 82, 84 is a cam roller pivotally supported by the pivot arm 83, and 85 is a pivot arm pivotally supported by the base body 82.
is a release arm fixed to the shaft of the pivot arm 83, and 86 is a chucking block, which is movable in the vertical direction within the range of an elongated hole formed in the base body 82.

87 is a compression coil spring interposed between the base body 82 and the tracking block 86, 88 is a catching arm (swing arm) built into the tracking block 86, and 89 is the tracking block 86. A built-in vertically movable sensor (stepped round bar) 90 is a screw cap bottle, and a spiral groove is formed on the outer periphery of the bottle mouth.

91 is a sleeve cap forming a spiral groove, 92 is a screw cap head, and the screw cap head 92 is connected to each of the above parts 8.
It has built-in numbers 2 to 86.

A spindle assembly 93 is different from the spindle assembly 74' in a screw cap head 92.

(Function) Next, the function of the lid tightening device shown in FIGS. 1 to 4 will be specifically explained.

() First, we will explain the case where the main lid tightening device is used as a screw cap (see Fig. 1).

(a) In this case, start the motor 57, transmit its rotation to the pulley 57' → belt 73 → pulley 72 → roll-on cap head 74, rotate the roll-on cap head 74, and rotate the on-cap head 74. The head 74 is controlled separately from the turntable 5.

(b) When forming the top of roll-on cap 8',
The top of the roll-on cap 8' is formed with a lid-clamping vertical load F' ₂ obtained by combining the elastic force of the spring 62 and the thrust of the piston 59 generated by the air pressure supplied from the piping 69.

(c) Other functions are the same as those of the conventional system, and detailed explanations will be omitted.

() Next, the case where the main capping device is used as a crown capping machine will be explained (see Fig. 2).

(a) In this case, remove the roll-on cap head 74 shown in FIG. 1 and install the crown head 80 in its place.

(b) The crown head 80 is installed so as to restrain the rotation of adjacent ones, but the motor 5
7 is stopped to restrain the rotation of the crown head 80.

(c) In the plugging process that deforms the base of the crown 37, the capping vertical load F′ ₂ is obtained by combining the elastic force of the spring 62 and the thrust of the piston 59 generated by the air pressure supplied from the piping 69.
to form a crown 37.

(d) Other functions are the same as those of the conventional system, and detailed explanation will be omitted.

() Next, we will explain the case where the main lid tightening device is used as a screw-on cap (see Figures 3 and 4). (a) In this case, remove the roll-on cap head 74 shown in Figure 1. Then, install the screw cap head 92 in its place.

(b) Start the motor 57, transmit its rotation to the pulley 57' → belt 73 → pulley 72 → roll-on cap head 74, rotate the screw cap head 92, and turn the screw cap head 92. It is controlled separately from Table 5.

(c) When the screw cap head 92 descends, the sensor 89 comes into contact with the screw cap 91 placed in advance on the bottle 90, and detects the presence or absence of the cap. If there is no screw cap 91, the position of the sensor 89 with respect to the tracking arm 88 remains unchanged.
The chucking arm 88 remains open and does not contact the bottle 90. On the other hand, when the cap 91 is present, the relative position of the sensor 89 with respect to the chucking arm 88 changes, and the chucking arm 88 is closed by the elastic force of a spring device (not shown). This closing timing is determined by the tracking arm 88.
immediately after being pressed against the upper surface of the screw cap 91 by the repulsive force of the spring 87.

(d) When the rotating chucking arm 88 closes and grips the outside of the screw cap 91, the spiral groove of the bottle 90 and the spiral groove of the cap 91 engage and tighten. The tightening speed and torque are controlled by a control panel (not shown) connected to the motor 57.

(e) When the tightening is completed, the conical cam 27 is lowered relative to the screw cap head 92, the cam roller 84 in pressure contact therewith rotates the pivot arm 83, and the opening arm 85 moves the capping arm 86. Open,
The grip on the screw cap 91 is released.

(f) Other functions are the same as those of the conventional system, and detailed explanations will be omitted.

() As mentioned above, the main capping device can be switched to a roll-on capper, a crown capping machine, or a screw-on capper using the respective dedicated heads 74, 80,
This is done by replacing 92 and changing settings on a control panel (not shown).

(Effects of the Invention) The lid tightening device of the present invention has the vertical support 4 as described above.
a turntable 5 that rotates in the horizontal direction centering on a rotation axis 8 to transport containers; a cam 4 fixed to the upper part of the support column 48 and formed with cam grooves having different relative distances to the turntable 5; A support member 58 that moves horizontally around the support 47 together with the cam floor 15 that engages with the cam groove in synchronization with the turntable 5, and is supported by the support member 58 to be rotatable around a vertical axis. and a motor 57 that revolves around the column 48 in synchronization with the turntable 5 and is driven when used as a roll-on cap or screw cap, but stopped when used as a crown capping machine. and power transmission means 57', 7 for transmitting the rotation of the motor 57 to the rod 67 and rotating the rod 67 about the vertical axis.
3, 72, a roll-on cap head 74 that descends while rotating to tighten the cap, a crown head 80 that descends without rotating to tighten the cap, and a screw that descends while rotating to tighten the cap. A U-cap head 92 is provided, which is used as a dedicated head 7.
Since one of the caps 4, 80, and 92 is detachably attached to the lower part of the rod 67, the capping device can be used as a roll-on capper, a capper, and a screw cap.

In addition, switching to roll-on capper, crown capping machine, and screw capper is possible using dedicated heads 74 and 8.
All you have to do is replace 0 and 92 and change the settings on the control panel.
It is not necessary to replace the entire spindle assembly, and it is possible to easily switch to a roll-on capper, a crown capper, and a screw cap.

Furthermore, when used as a crown plugging machine, it is sufficient to stop the motor 57 to prevent the crown head 80 from rotating, and there is no need to provide each of the crown heads 80 with rotation prevention means.
0 structure can be simplified and manufacturing costs can be reduced.

Furthermore, the speeds of the dedicated heads 74, 80, and 92 can be controlled separately from the speed of the turntable 5, which has the effect of providing stable lid tightening performance.

[Brief explanation of drawings]

Fig. 1 is a longitudinal sectional side view of an embodiment of the capping device according to the present invention as a roll-on capper, and Fig. 2 is a longitudinal sectional side view of the capping device as a crown capping machine. Figure 3 is a vertical cross-sectional side view of the same cap tightening device as a screw cap, Figure 4 is an explanatory view showing the capping state of the screw cap, and Figure 5 is a roll-on cap of the conventional cap tightening device. Fig. 6 is an explanatory diagram of the operation of the capping device, Fig. 7 is a longitudinal sectional side view of the capping device when it is used as a capping machine, and Fig. 8 is an explanation of its operation. It is a diagram. 4...cam, 5...turntable, 48...
Vertical support, 57...Motor, 57', 73, 7
2...Power transmission means, 58...Support member, 67...
... Rod, 74 ... Head for roll-on cap, 80 ... Head for crown, 92 ... Head for screw-on cap.

Claims (1)

[Claims] 1 A turntable 5 that rotates horizontally around a vertical support 48 to transport containers, and the support 4
The cam 4 is fixed to the upper part of the support column 8 and has cam grooves formed therein at different relative distances to the turntable 5, and the cam floor 15 engages with the cam groove in synchronization with the turntable 5.
a support member 58 that moves horizontally centered at 7;
A rod 67 is supported by the support member 58 so as to be rotatable about a vertical axis, and the rod 67 revolves around the support 48 in synchronization with the turntable 5, and is used as a roll-on cap or screw cap. a motor 57 that is started when used as a capping machine and stopped when used as a capping machine; a power transmission means 57' that transmits the rotation of the motor 57 to the rod 67 and rotates the rod 67 about the vertical line; 73, 72, and a roll-on cap head 74 that descends while rotating to tighten the lid.
, a crown head 80 that descends without rotating to tighten the lid, and a screw cap head 92 that descends while rotating to tighten the lid, one of these dedicated heads 74, 80, 92. A lid tightening device characterized in that a lid is detachably attached to the lower part of the rod 67.