JP3618603B2 - Cap support device for capper and method therefor - Google Patents

Description

[0001]
[Industrial application fields]
The present invention relates to a cap support device for a capper and a method thereof that can quickly and easily support a cap in the filling and packaging industry and the like.
[0002]
[Prior art]
Conventionally, in the filling and packaging industry and the like, a device for attaching a cap to the mouth of a container filled with contents is, for example, a gripping member by a conventional gripping means such as a mechanical type such as a link or a wedge, a vacuum type, an air tube type, etc. Is operated to perform the gripping.
[0003]
For example, when gripping a cap by air pressure, these devices can only apply either a suction force or a pressure to the air flow path. Selection is made between adsorption holding of the upper surface and gripping of the cap by the applied pressure.
[0004]
Therefore, in the case of a concave shape in which the suction force cannot be applied to the suction part of the cap, or when the gripping member is an irregular shape that cannot grip the outside of the cap for reasons such as being thin, etc., the shape of these caps each time It is necessary to select a gripping means suitable for the above and replace it with the support in the capper.
[0005]
In addition, in order to satisfy both the suction force and the applied pressure, a double structure having respective flow paths must be used, and thus the structure of the gripping means configured to be relatively small is complicated. In addition to troublesome maintenance in response to breakdowns, when used in a rotary filling and packaging machine, the weight per head increases, the weight of the entire rotating body increases, and the manufacturing cost of the device increases. Significantly soars. Etc. have various problems.
[0006]
[Problems to be solved by the invention]
The present invention has been made to solve the above-mentioned problems. The suction force is applied to the air passage, and the cap is sucked and held by the suction member by opening the valve seat of the valve body, and then the suction force is stopped. Then, the valve seat is closed by this valve body when the valve body is dropped, pressurized air is supplied to the air passage, the gripping member is operated, and the cap that is sucked and held is gripped by a simple structure. It is an object of the present invention to provide a cap support device for a capper and a method thereof capable of appropriately selecting and using both force and pressure.
[0007]
[Means for Solving the Problems]
The means of the present invention for achieving the above-described object includes a gripping body supported by a support body, a ventilation body attached to the gripping body and having an air passage formed therein, and a lower side of the ventilation body. An adsorber for a cap that provides a suction force of the air passage, an operating body that is provided so as to be able to advance and retreat into the gripping body, an air chamber formed in the gripping body at an upper portion of the operating body, A through hole that is opened in correspondence with the air chamber in the ventilation body so that the air chamber communicates with the ventilation path, and a gripping member that is provided in the gripping body and is operated by the operating body to grip the outer periphery of the cap And a cap support device for a capper that is mounted so as to be movable up and down into the air passage and opens and closes the valve seat in the air passage, and the valve body is separated from the valve seat at the time of suction. In position and the valve seat is open A valve seat in contact with the valve seat to the suction stop and pressurization is the configuration of the capper cap supporting device is a valve body is closed.
[0008]
And
An adsorbent for adsorbing and holding a cap by suction air to a gripping main body of the capper, a gripping member for gripping the cap by pressurized air to the gripping main body, a vent having an air passage through which air flows, and an inside of the air passage A valve body that opens and closes the valve seat, applies a suction force to the air passage, and adsorbs and holds the cap by the adsorption body by opening the valve seat of the valve body, and then stops the suction force. A cap support method for a capper that closes the valve seat with the valve body when the valve body is dropped, applies pressurized air to the air passage to operate the gripping member, and grips the sucked and held cap. It is in.
[0010]
【Example】
Next, an embodiment of a cap support device for a capper and a method thereof according to the present invention will be described with reference to the drawings.
In FIG. 1 to FIG. 3, A is a cap support device used for a capper W used in the fluid filling and packaging industry, and is a gripping body 1, a ventilation body 2, an adsorbing body 3, an operating body 4, and an air chamber 5. And the through-hole 6, the gripping member 7, and the valve body 8.
[0011]
The capper W is employed in a rotary type as shown in FIG. 3, for example. The cap support device A of the present embodiment having a plurality of heads is provided on the rotating body 9, and the capper W A cap c is applied to the mouth of the container b by the cap support device A during the rotational movement of the rotating body 9 by the operating means 10.
Of course, the apparatus A can be used for a capper W other than the rotary type.
[0012]
The gripping main body 1 is supported on a support 12 that is suspended from the attachment member 11 of the rotating body 9 in the capper W, and as shown in FIG. It can be freely rotated by the rotating means 14.
[0013]
The aeration body 2 is attached to the inside of the gripping body 1 and has a ventilation passage 15 formed therein, and a predetermined pressure by negative pressure and positive pressure (pressurization) by a driving means 16 having an intake function and an air supply function. Let the air flow.
[0014]
The adsorbing body 3 described above is provided on the lower side of the aeration body 2 and adsorbs the upper surface of the cap c by an air pressure in which a suction force is applied to the aeration path 15, and has a pad type having a cushioning property in the vertical direction. Is used.
[0015]
The above-described operating body 4 is provided in the gripping main body 1 so as to be able to advance and retreat so as to be in contact with the outer peripheral portion of the ventilation body 2 and the side inner wall of the gripping main body 1.
[0016]
The air chamber 5 described above is formed in the upper part of the operating body 4 and the upper inner wall of the gripping body 1 in the gripping body 1, and a through hole 6 opened in correspondence with the air chamber 5 in the ventilator 2. The air chamber 5 and the ventilation path 15 of the ventilation body 2 are communicated with each other through the through hole 6.
Accordingly, the pressure applied by the driving means 16 flows into the air chamber 5 from the ventilation path 15 of the ventilation body 2 through the through hole 6, thereby pressing the upper surface of the actuation body 4 and moving the actuation body 4 downward. Let
[0017]
The gripping member 7 described above is provided on the gripping main body 1 and is operated by the operating body 4 to grip the outer periphery of the cap c, and opens and closes by providing at least a pair (two) of claw-like bodies at the lower end. .
Note that the opening / closing operation of the gripping member 7 abuts the inclined body 7a of the gripping member 7 corresponding to the inclined surface 4a formed on the lower surface of the operating body 4, and the downward vertical movement of the operating body 4 is caused by the downward movement of the operating body 4. 4a and the inclined body 7a are used to convert to lateral motion.
Further, the gripping member 7 may be always urged in the outward expansion direction by an unillustrated ammunition.
[0018]
The above-described valve body 8 is mounted so as to be movable up and down in the air passage 2 and opens and closes the valve seat 17 in the air passage 2 and uses a spherical body. Actuated by pressure.
[0019]
Therefore, the cap support device A for cap and the method of the embodiment according to the present invention configured as described above have the following operations.
As shown in FIG. 3, a cap c as shown in FIGS. 1 and 2 is supplied above the container b in the table 21 of the rotating body 9 by the cap supply means 20. Accordingly, the cap c is transferred and positioned.
[0020]
Then, as the support member 11 is lowered by the lifting and lowering means 13, the driving means 16 is actuated and a suction force acts on the ventilation path 15 in the ventilation body 2 to lift the valve body 8 as shown in FIG. 3 is set to negative pressure.
[0021]
Then, the cap c waiting by the cap supply means 20 below the adsorbing body 3 is pressed against the adsorbing body 3 and sucked and held.
[0022]
At the same time, when the air in the ventilation path 15 is stopped by the driving means 16, the valve body 8 built in the ventilation path 15 is valved by its own weight (an elastic machine such as a spring may be provided and pushed down by this). It drops to the seat 17 and closes the valve seat 17.
[0023]
In this state, when the operation by the driving means 16 is switched from suction to pressurization and pressurized air is pumped into the vent passage 15, the valve seat 17 is blocked by the valve body 8 in the vent passage 15. The pressurized air flows into the air chamber 5 from the through hole 6 of the ventilation body 2.
[0024]
Therefore, since this pressurized air pushes down the operating body 4 downward, the pair of gripping members 7 and 7 are moved inward via the inclined surface 4a and the inclined body 7a, respectively. As shown in FIG. 2, 7 contacts the outer peripheral surface of the cap c and grips the cap c with a predetermined pressure. At this time, the suction force by the adsorbent 3 is still working on the upper surface of the cap c.
[0025]
By gripping the cap c by the pair of gripping members 7 and 7, even when the center of the cap c by the adsorbing body 3 is insufficient, the cap c can be moved by the same dimension inward from the outer periphery of the cap c and gripped. Thus, accurate centering of the cap c is performed.
[0026]
For example, as shown in FIG. 4, in the filling and packaging line L, the container b is delivered from the line L by the relay member 23 such as a star wheel, and further, the cap is fed into the capper W and is moved onto the container b by the cap supply means 20. Since the timing of supplying the cap c is an instant at the point of the X position in the figure, a configuration that can instantaneously hold the upper surface of the cap c by the adsorbent 3 is extremely effective.
[0027]
In particular, as shown in FIG. 5 (a), when the cap c has an uneven surface c1 and the adsorbent 3 cannot hold the cap c, the air operation by the driving means 16 is immediately performed. Since the cap c can be gripped by operating the gripping member 7 by switching the above, it is not necessary to change the type of the capper W.
[0028]
In addition, as shown in FIG. 5B, when the cap c is not thin and thin, the cap c cannot be gripped by the gripping member 7. Once the device A is lifted and held slightly by suction, when the gripping member 7 no longer interferes with the cap supply means 20 or the like, the gripping member 7 is operated to grip the cap c with accurate centering. be able to.
[0029]
【The invention's effect】
As described above, the cap support device for a capper and the method thereof according to the present invention include the above-described unique valve body, so that the cap adsorption holding and the outer periphery gripping of the cap can be performed by a single system of air operation. Therefore, the entire apparatus can be formed in a compact manner, and can be manufactured at a low cost. It has a special effect such as.
[Brief description of the drawings]
FIG. 1 is a cross-sectional view of a main part showing a cap holding device for a cap according to an embodiment of the present invention and showing a state where a cap is sucked and held.
2 is a cross-sectional view of a main part showing a state in which the cap is gripped in the cap support device for a capper in FIG. 1. FIG.
FIG. 3 is a schematic front view of a capper employing the cap support device for capper in FIG. 1;
4 is an explanatory view showing a state in which a container of a capper adopting the cap support device for capper in FIG. 1 is brought in. FIG.
5 is a cross-sectional view of a main part showing each example of a state in which a cap is gripped in the cap support device for a capper in FIG. 1. FIG.
[Explanation of symbols]
b Container c Cap 1 Holding body 2 Venting body 3 Adsorbing body 4 Actuating body 5 Air chamber 6 Through hole 7 Holding member 8 Valve body 15 Ventilation path 17 Valve seat

Claims (2)

A gripping body supported by a support body, an aeration body attached inside the gripping body and having a ventilation path formed therein, and a cap provided on the lower side of the ventilation body to apply a suction force of the ventilation path A body, an actuating body provided so as to be able to advance and retreat into the gripping body, an air chamber formed in the gripping body at the top of the actuating body, and an opening corresponding to the air chamber in the ventilation body. A through-hole that allows the air chamber and the ventilation path to communicate with each other, a gripping member that is provided in the gripping body and that is operated by the operating body to grip the outer periphery of the cap, and that can be moved up and down into the ventilation path. A cap support device for a capper provided with a valve body that opens and closes a valve seat in an air passage , wherein the valve body is in a position separated from the valve seat at the time of suction and the valve seat is open, and when suction is stopped When the pressure is applied, the valve seat comes into contact with the valve seat Capper cap supporting device which is a valve body is closed. An adsorbent for adsorbing and holding a cap by suction air to a gripping main body of the capper, a gripping member for gripping the cap by pressurized air to the gripping main body, a vent having an air passage through which air flows, A valve body that opens and closes the valve seat, applies a suction force to the vent passage, and adsorbs and holds the cap by the adsorption body by opening the valve seat of the valve body, and then stops the suction force. The valve seat is closed by the valve body when the valve body is dropped, pressurized air is supplied to the air passage, the gripping member is operated, and the cap held by suction is gripped. Cap support method for capper.

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