JPS5927262B2 - Container sealing device using automatic injection filler - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention covers the body and top plate of the container, uses an automatic injection filler in the wrapped portion of the inner surface of the container, monitors the presence or absence of the formation layer, and then performs the next process. The present invention relates to an apparatus and method for continuously automatically forming seams.

Conventional containers for storing petroleum, oils and fats, foods, medicines, paints, and other things, such as 2001 drums and 1001?
For cans, 201 cans, etc., when the top and bottom plates and the body are fitted and tightened, a filler is applied to the seamed portion and the seams are tightened to maintain airtightness and prevent leakage.

For example, the main components of the compound are: 35% synthetic rubber, 27% reinforcing filler, 2% thickener, 0.2% ammonia solution, balance water; Viscosity, D&A viscometer 5" Hg 30°C
50±5 seconds; specific gravity 1.26; liquid is used. FIG. 1 is an example of a case in which this process is completely performed. The invention achieves the technical objectives by ensuring reliable and complete work and continuous work efficiency at all times. A shows the configuration of the seaming part, B shows the state in progress, and C shows the completed seaming. The filler 5 is applied to a predetermined location of the seaming part 4 consisting of the body 1 and the plates 2 and 3 A, and then the filler 5 is rolled into the seam part by seaming B. The filler 5 is Co is already used in known sealing devices using filler injection guns because it is uniformly distributed and prevents airtightness and leakage. but,
Conventional methods are concerned with ensuring that the appropriate amount of filler is injected, ensuring that the filler is applied to the designated areas, and taking appropriate measures in the event of an abnormality occurring in the filling process of a continuous can manufacturing system. is not sufficient, as shown in Table 1. The abnormalities shown in Table 1 are caused by a defect in the injection gun or the unit that incorporates the sensor and solenoid valve, resulting in the filler not being injected, or even if it is injected, the injection time is short, or the filler quality is It is recognized that the shooting does not stop. This is because detection and resolution of these abnormalities are not sufficient. In view of the shortcomings of these conventional devices, the present invention is a device that eliminates abnormal injection, quickly takes automatic measures when it occurs, detects defective filler filling, and deals with abnormal cases, The object of the present invention is to provide a method and device for jet-sealing filler that is good in terms of workability and maintainability.

Next, one embodiment of the present invention will be described.

The filler used was the same or similar to the conventional product. FIG. 2A shows a partially sectional side view of a pair of left and right vertical frames 19 and 20 that move oppositely on a predetermined plane within the base plate 09 and are fixed at a predetermined interval position B-B. Figure 2C is a partial cross-sectional side view of the container fixed at the maximum spacing position A-A before being clamped and fitted to the chuck, and Figure 2C is a side view with the container not attached and with the drive gear, pulley and part of the drive shaft removed. The second D axis shows the front view of the cam, and the second E axis shows the partially sectional side view shown in FIG.
The figure is a partial cross-sectional side view of an example of the arrangement of the support plate 62 fixed to the mount, the sliding plate 28, the forming roll 34, the injection gun 32, the shafts 30A and 30B, and the reuse cylinder 30. FIG. 4 is a partially enlarged view of the main mechanism of FIG. 3. The operation will be explained with reference to FIG.

The motor 6 drives pulleys 7, 8, a clutch 9, a brake 10, a drive shaft (not shown), helical gears 11, 12,
13, 14, pulleys 15, 16, and a gear 17, the camshaft 18 is rotated.

Mounting frames 19 and 20 for parts supporting the cam rotating shaft 18 are mounted on the shafts 06A and 06 (FIG. 2C), the chucks 23 and 24, and the shaft attachment portion 2 of the chuck by the operation of the hydraulic mechanisms 21 and 22.
Along with 3A and 24A, moving bearing parts 21A and 22A
Accordingly, the base plate 09 is moved on the support surfaces 19A and 20A from the maximum movement interval position A-A (FIG. 2B) to the predetermined interval position B-B for seaming (FIG. 2A). Since this movement is the same for both frames, the right side of FIGS. 2A and 2B will be explained.

In FIG. 2C, the hydraulic mechanism 22 is actuated to push the component 22A tightly fitted to the pedestal 20 with the shaft 22B, and the pedestal 20 is pushed and moved, and the shaft attachment part 24A at the end of the shaft 06 and the chuck 24 fixed thereto are moved. move forward inward. The shaft 06 has a double shaft structure as an independent sliding shaft concentric with the inner surface of the drive shaft 05 of the gear 14 shown in FIG. 2A. When the pedestal 20 moves, the gears 14 and 12 also move. When the frame 19 moves, the gears 13 and 11 also move, and the pulley 15 belt 16
A gear drive mechanism 6AB that rotates the cam drive shaft 18 through
moves together with the pedestal 19. The driving force transmitted from the drive motor 6 to the gear 11 via the pulleys 7 and 9 and the belt 8, the drive shaft 02 (dotted line) fixed to the bearing 10, and the transmission mechanism 03A is independent of the above movement. Frame 1
Chucks 23 and 24 facing each other are disposed at the bottom of the chucks 9 and 20, and the top and bottom plates 2 and 3 covered with the body 1 are connected to the chuck 2.
Fit and hold with 3.24 heads.

The chucks 23 and 24 are driven and rotated by gears 13 and 14, so that the sandwiched body and top and bottom plates 2 and 3 rotate simultaneously with the chucks. One applied embodiment shown in FIGS. 2A, 2B, 2C, 2D, and 2E will be described. Since the left and right frames 19 and 20 are symmetrical and have the same structure, the mechanism related to the right frame 20 will now be explained. The same applies to the pedestal 19.
The relevant code is shown inside the bracket. Vertical sliding plates 28, 27 shown surrounded by dotted lines in FIG. 2B are attached to support plates 62, 61 provided on the upper parts of frames 20, 19.

A partially enlarged view is shown in FIG. 2E. At the top of the sliding plate 28 is a shaft 2 that contacts the cams 26 and 25 and moves up and down as the cams rotate.
6A, 25A are attached, and the support plates 62, 61 have upper parts 62A, 61A and lower parts 62B of the support plates 62, 61 shown with diagonal lines.
61B is a sliding plate 2 having an exterior plate (not shown) and covering the lateral edge of the plate 28 and the sliding lateral surfaces 28A, 28B, 28C and 28D.
8 and 27 are fitted and supported on support plates 62 and 61. The cylinders 30, 29 are attached to the support plates 62, 61 or the pedestal 2 by means of parts not shown in the drawings so as to maintain a constant position relative to the support plates 62, 61.
0 and 19, and functions to return the piston shafts 30A and 29A in the cylinders 30 and 29 to their original positions. axis 30
Sealing rolls 32,
31 and guns 34, 33 are fixed.

The guns 34 and 33 are equipped with an injection hole 41, and a feeding agent pipe 40 is provided.
and air pipe 38 (FIG. 3). Sliding plates 28, 27
, axes 26A, 25A, axes 30A and 30B, 29A and 29
B. The rolls 32, 31 and the guns 34, 33 move up and down simultaneously. As shown in the figure, the cams 26 and 25 are driven by the drive rotation shaft 18 and have a maximum outer diameter end 80 and a minimum diameter end, and when the frames 20 and 19 move A+-B (FIGS. 2A and 2B), the cams 26 and 25 are connected to the shaft bearing 20B. The cams 26, 25 slide on the shaft heads 26A, 2
Maintain contact of 5A. Figure 2C shows gears 11 and 13, 1
2 and 14, excluding the pulley belt 16, showing the container 1 before loading.

Except for the cylindrical drive shafts 05, 05A that drive gears 13 and 14, '. Chucks 24, 23 and fittings 24A, 23A
The shafts 06, 06A of the hydraulic mechanisms 22, 21 that operate the are exposed. The container 1 to be seamed is placed on the pedestal 0 at the position A-A in Fig. 2B.
1) Load the filler, operate the hydraulic mechanisms 22 and 21, and release the filler.
Start dynamic injection and seaming.

In Figures 2A, 2B and 2E, camshaft 1
8 is driven and rotated by a gear mechanism 6B. The chucks 23 and 24 are connected to the hydraulic mechanism 21 on the top/bottom cover plate 23 of the container 1? 2 and actuating parts 21A and 21B, 22A and 221B, and move to B shown in FIG. 2A. = threat). Taiji';'
;, Two-axis """.. static engineering 1:: order τw God: *-;; ゛Special R7 2'' = tsukyo; ゛2 Futo 2: Kaidai, 12'.
:Bud:i=:-;:Lily: {Slides on the inner surface and presses down to move to the specified position.

The processed surfaces of the rolls 32, 31 are given a predetermined shape, and an appropriate amount of filler is injected into the bent inner surface from the injection holes 41 of the guns 34, 32 under photoelectric control. Next, the injection is stopped and the next tightening process is carried out. As shown in FIG. 1A, the timing and position of automatic injection are controlled at an arbitrary position within one to two revolutions. As the winding progresses, the forming rolls move as shown in Fig. 1B.
It comes into play when the process has progressed a little, and is completed with C in Figure 1. Upon completion of this, the cylinder mechanisms 29, 30 lift the rolling rolls 31, 32 to their original positions and are ready to receive them again. such as fuselage mounting, detection, filler injection,
The entire seaming process usually takes a few seconds.
The injection guns 33 and 34 illustrated in FIG.
and a filler storage chamber 36. The gun body 35 has air conduits 37, 38 for supply and a filler injection amount adjustment dial, and the filler storage chamber 36 has a filler conduit 40 for replenishing or supplying, and an injection port called a tip at its tip. 41 is provided. The fitting 42 has one end attached to the gun body 3.
5, the other end faces the chip 41, and includes a detection light projecting section 43, a light receiving section 44, and a lead wire 45 as a pair. A cover 46 is attached to the unit 52 for protection. As for the filler 5 in the storage chamber 36, compressed air passes through the air conduit 37 by energizing the solenoid valve, opens the tip 41, and injects the filler. The air conduit 38 becomes the air outlet side, and when the chip 41 is closed, the opposite is true and no filler is injected. The filler stored in the tank is pumped by air pressure and supplied to the storage chamber 36 through the auxiliary conduit 40.
The light projecting section 43 and the light receiving section 44 are provided at the position where the filler 5 is injected, and detect whether or not one injection of the filler 5 is made and whether it is correct or not and transmit the information. A partially enlarged illustration is shown in FIG. In this embodiment, a case will be described in which an infrared light emitting diode is used for light projection. As the diode, for example, “
It is a small switch with an external size of about 12 mu in both length and width and a thickness of about 5.8 mm, which can be built into equipment, has high precision and high durability, and is applicable to detecting minute objects. Chip 41
The filament bundle 48 of the filler injected from the cover 46 passes through the hole 47 provided in the cover 46 , and at this time, the transmitted light 49 is blocked by the filament bundle 48 and is not received by the light receiving section 44 .

In this way, the presence or absence of injection of the filler is detected by cutting and entering the light into the light receiving section.The distance 1 between the filament bundle 48 of the filler and the light projecting section 43 is set so as to maintain approximately 10 mm. , the mounting positions of the injection guns 33, 34 and the light projecting section 43 are selected,
An aperture plate 50 is provided approximately 10 mm from the front surface of the light receiving section 44, and one small diameter hole is provided on the surface of the plate, and in the present invention, the diameter of the hole is within 1 mm of the inner diameter. year,
Improve detection precision and accuracy. The unit 52 that combines these is small and includes a light emitting part, a light receiving part, dirt prevention covers 44 and 46, a plate having passage holes, and an aperture plate 50 and 5.
1. It consists of injection guns 33, 34, conduits 37, 40, conductive wires, and fittings 42, and the installation space is extremely small. The injection guns 33 and 34 are connected to the sliding parts 27 of the tightening rolls 31 and 32,
28 is fixed at a predetermined location close to the fixing roll and close to the seaming point 4, and when the seaming work is completed,
The unit including the guns 33, 34 moves together with the mounts 19, 20 to return to its original state. Next, an example of the control relationship in the embodiment shown in FIG. 5 will be shown.

The point 4 to be tightened is set in the accurately adjusted and driven chucks 23 and 24 and given the correct position, according to the sensor not shown, which is commonly used for confirmation. Check the rotation of the parts, and if it is normal, proceed with the next process such as injection of filler. The filler injection control unit 52 includes a filler injection command limit switch 53 operated by the cams 25 and 26, a timer 54 operated by the command of the switch 53 and arbitrarily setting the operating time of the solenoid valve 55, and a filler injection control unit 52. 5, a circuit 57 for detecting an abnormality in the timer 54, an abnormality command circuit 58 including both the circuits 56 and 57, and a normality command circuit 59. The illustrated photoelectric switch 60 (FIG. 5) is constructed with a light projecting section 43, a light receiving section 44, etc., which are integrated with the injection guns 33 and 34. Depending on the time set by the timer 54, the filler injection guns 33, 34
The time to fire the filler is determined. Further, the photoelectric switch 60 detects whether or not the filler 5 is injected, and a signal generated by this detection is introduced into the abnormality detection circuit 56 to determine whether it is normal or abnormal. Regarding abnormal conditions, as shown in Table 1, ``injection is the same'', ``injection time is short'', 8 injection time is long, ``injection does not stop'', etc. are determined and introduced into the abnormality command circuit 58. .

In this way, the circuit 58 disengages the clutch 9 (FIG. 2) in the case of ``no injection'' and immediately stops the tightening operation.In the case of ``the injection time is short'', the circuit 58 sets the injection timer 1. At the end of the time, the clutch 9 is released, and the tightening work is immediately commanded and stopped. In addition, if the injection time is long, the clutch 9 is released after a delay of 0.3 seconds after the end of the set time of the injection timer, and the tightening work is immediately commanded and stopped. However, the abnormal condition is displayed according to its cause and an alarm is issued.

The normality command circuit 59 automatically and continuously performs the seaming work. As already explained, according to the method of the present invention using the automatic filler injection seaming device of the present invention, 201?
, 100112001, etc., can be seamed with high accuracy and with good filler. Furthermore, the device of the present invention is small and can be easily installed, and the hole provided in the aperture plate has a simple structure that eliminates the influence of external light. Sealing can be easily controlled and the resulting effect is very noticeable.

[Brief explanation of the drawing]

FIG. 1 is a schematic diagram of the present invention in which a filler is used for seaming. FIG. 2A is a partially sectional side view of the B--B spacing position, FIG. 2B is the A--A spacing position, and FIG. 2C is the A-A container-free position. FIG. 2D is a front view of the cam, and FIG. 2E is a partially sectional side view of one embodiment showing the arrangement of a gantry fixed support plate, a sliding plate, a roll, and a gun. FIG. 3 is a schematic explanatory diagram of container manufacturing according to one embodiment of the present invention. Figure 4 is an enlarged view of the main parts. FIG. 5 is a schematic control configuration diagram of the present invention. 4...Tightening point, 5...
...Filler, 6...Motor, 18...
Camshaft, 19, 20... Frame, 2122...
...Cylinder mechanism, 23,24...1...Chuck, 25,26...Cam, 27,28...
...Sliding part, 29,30...Cylinder mechanism,
31, 32... Roll, 33, 34...
・Injection gun, 41... Chip, 43...
・Light emitter, 44... Light receiver, 46...
Cover, 50... Squeezing board, 51...
Small hole, 52... Filler injection control unit, 58
...Abnormal command circuit, 59...Normal command circuit.

Claims (1)

[Scope of Claims] 1. A pair of left and right vertical frames 19 and 20 that move oppositely on a predetermined plane of the platform 09, and a vertical sliding plate fitted into support plates 61 and 62 fixed to the upper inner surface of the frames. Sealing rolls 31 and 32 fixed to the lower parts of 27 and 28 and a filler injection gun 33
and 34, cylinder mechanisms 29 and 30 for returning the sliding plates 27 and 28 to their original positions, cams 25 and 26 for vertically sliding the sliding plates 27 and 28 provided at the top of the pedestal, and a cam drive. A support chuck 2 between the shaft 18 and the lid plates 2 and 3 forming the tightening point 4 for the lid of the container 1 arranged on the inner surface of the lower part of the pedestal.
3 and 24 and a support part (21
A and 22A), and the hydraulic mechanisms 21 and 22 move the frames 19 and 20 from the maximum interval position A-A to the predetermined interval position B.
-B, the chucks 23 and 24 drive and rotate the interposed container 1, and the seaming portion 4 is given a predetermined shape with the seaming rolls 31 and 32, and the formed inner surface is injected with a filler by photoelectric control. An apparatus for sealing containers using automatic injection filler, characterized in that the sealing is performed by sensing and transmitting the presence or absence of the filament 48 of the filler sprayed and formed by the unit 52. 2. The photoelectrically controlled filler injection unit 52 includes a photoelectric switch 60 that emits light onto the filament 48 formed by the filler being injected onto the inner surface of the seam, receives and captures the emitted light, and at most one
．． It is provided with a light receiving hole 51 that is adjusted to a size of 2 mm or less and suitable for the outer diameter of the filler injection line 48, and controls or stops the progress of seaming formation depending on whether the injection supply of filler is correct or not. An apparatus for sealing containers using the automatic injection filler according to claim 1.