FR2523947A1 - MANUAL CAPSULATOR APPLICABLE IN PARTICULAR TO GAS BOTTLE VALVES - Google Patents

Abstract

MANUAL CAPSULER FOR FITTING A CAPSULE ON VALVES OF PRESSURIZED GAS BOTTLES. THE CAPSULER INCLUDES A BODY 1, ESPECIALLY A GOOSE-NECK, PROVIDED WITH AN OPERATING HANDLE 4, A CRIMPING HEAD 12 MOBILE IN THE BODY AND COOPERATING WITH AN ANVIL 3 JOINT TO THE BUILDING, A FLUIDIC ACTUATION AND CONTROL DEVICE 2 GUIDANCE OF THE SAID CRIMPING HEAD 12, A HEAD RETURN MECHANISM 9 AND A FLUIDIC CONTROL DEVICE 10 PROVIDED WITH REGULATION AND SAFETY MEANS. APPLICATION TO GAS BOTTLE FILLING SYSTEMS.

Description

The present invention relates to a capper

  manual, which can be used in particular for setting up

  sules on the threaded nose of gas cylinder valves

under pressure.

  When bottles leave the liquefied gas filling plant, their valves must be provided with a capsule intended to fulfill a dual function

  sealing and anti-violatior This capsule is

  killed by an aluminum cup or other deformed material

  ble, provided with a tear-off tab; the bottom of the

  cup has a seal which fulfills its function

  when the capsule is crimped onto the faucet nose There is currently a machine for

  automatically capping the cork taps

  dies on the filling line but, where that

  China is unavailable, we obviously can not

  to fix capsules and it is then necessary to screw on the noses of

  binets of threaded plugs that do not fill the same

function that capsules.

  To remedy this drawback, it is planned,

  according to the present invention a manual capper

  the fluidic control which comprises a frame, in particular in the shape of a gooseneck, provided with an operating handle,

  a crimping head which is movable in the frame and which co-

  operates with an anvil fixed in the frame, a support device, fluidic actuation and guide the crimping head, a return mechanism of said head and a fluidic control device provided with logic means

regulation and safety.

  The capper according to the invention can still have

  the following characteristics, considered in isolation or in all their technically possible combinations

  the crimping head comprises a piston

  Placeable inside a guide sleeve and cooperating

  with a sliding sheath on the outer surface of the man-

  chon to actuate a flexible crimp lining,

  at the end of the head so that it rests

  the capsule and apply it tightly against the

  and the end of the faucet nose thus ensuring its crimping. the device for fluidic actuation and guide of the crimping head comprises a pneumatic cylinder

  particularly in the form of an inflatable flat bladder,

  between a fixed plate, connected to the frame by rods of gui-

  and a movable thrust plate, sliding on the

  your guide rods and on which is fixed said sleeve

  guiding the crimping head.

  a bumper is provided in the guide sleeve against which the crimping piston abuts,

  after compression of an intermediate return spring.

  there is provided on the outer surface of the guide sleeve a shoulder for actuating the

  outer sleeve of the crimping head at the end of the cycle.

  to ensure the return of the

  port and actuation of the crimping head in the initial position, there is provided one or more return springs acting in compression between the frame and the tray

mobile push.

  to ensure this return movement, there is provided one or more fluidic return cylinders whose

  cylinder is fixed on said frame and whose piston is

  linked by a rod to the movable thrust plate.

  the fluidic control device comprises a trigger operating by holding a fluidic contactor

  in service condition, a timer for setting the cy-

  crimping tool, a control valve of the main cylinder, a control valve of the return cylinder, a control valve and a logic circuit of

  security to stop the capper during the cycle.

  Other advantages and characteristics of the

  will be highlighted later in the description of the

  given by way of non-limiting example, with reference to the appended drawings, in which:

  FIG. 1 is a schematic cross-sectional view,

  following line I-I of Figure 2 of a

  the manual capper according to the invention.

  Fig 2 is a plan view of the capper, and Fig 3 is a diagram of an exemplary circuit

  of the pneumatic control device of the capper se-

the invention.

  In the embodiment of Figures 1 and 2, the capper essentially comprises a frame 1 in the shape of a gooseneck, provided at its rear end with a handle 4 suspended by means of a hook 6 to

  a cable 7 itself connected to a bracket, not shown.

  The frame 1 carries on one side the pneumatic actuating device.

  2 of the crimping head 12 and the other side

  the anvil 3 which is fixed. There is also provision for

  9 to return the crimping head to the initial position and a pneumatic control box 10

  schematically indicated in FIG. 1 and whose components

  will be described in detail in the following reference

  to the circuit diagram in Figure 3 The capper / control

  triggered by a trigger acting on a contactor

pneumatic 8.

  We will now describe in detail

  the capsule crimping head and its actuator

tion and guidance.

  The crimping head comprises a piston-shaped portion 11 sliding inside a guide sleeve 16 and provided on one side with a tip 13 whose function will be specified hereinafter. The piston 11 acts from the another side on a flexible cap 29 held at the end of the guide sleeve 16 so as to apply against

  a capsule C placed on a nose N of tap R (representing

  In addition, outside the sleeve 16 is provided a sleeve 28 whose sliding movement on the sleeve is guided by a

  nipple, schematized at 35 and moving in a slot pa-

  parallel to the axis of the sleeve 16 This sleeve 28 has for

  function, at the end of crimping stroke, to apply e-

  tightly the soft cap 29 against and around the

  capsule so that it matches the profile of the nose of

  binet in its threaded side. The actuating device 2 of the crimping head 12 comprises a flattened profile cylinder in the form of an inflatable flat bladder, in particular a jack known under the

  commercial designation PRONAL; this jack powered by the in-

  intermediate of the tubing 23, is placed between a fixed plate 21, connected by guide rods 31, 32, to the frame 1

  capper, and a movable platen 22, slidable

  ser on said rods 31, 32 On this movable plate 22 is fixed the guide sleeve 16 of the crimping head 12 by means of screws schematized at 34 The sleeve 16 slides in a guide shaft 15, shown only schematically and fixed in the back plate 18 of

frame 1 of the capper.

  Inside the sleeve 16 is fixed, with the help of

  of a pin 25 ', a stopper 25 provided with a tip 24 against which abuts, during the crimping cycle,

  the piston 11 after compression of a return spring

  On the outer surface of the sleeve 16, there is provided a shoulder 27 which serves, towards the end of the crimping cycle, to push forward the outer sleeve 28 of the head 12 to ensure the wrapping of

  the capsule C by the extreme pad 29.

  Opposite the crimping head 12, there is provided at the end of the gooseneck of the frame 1 an anvil

  fixed 3 which comes into contact with the tap R via the

  midpoint of a protrusion 30 in order to maintain it during the cy-

crimping key.

  Once the crimping cycle is over, it

  the whole of the crimping head 12 and the

  positive actuation returns to the initial position.

  It is possible to use for this purpose one or more

  recall spells that are compressed by the moving part of the

2523947,

  device during the crimping stroke and which

  then tend to bring it back into an initial condition.

  during this compression of the springs during the crimping stroke absorbs a portion of the energy of the cylinder 17 and then results in a sudden relaxation of the springs during the return movement and therefore by a shock

  at the end of the race Also, in accordance with a

  of the capper according to the invention, it is provided, to ensure the return of the mobile part of the device, a

  pneumatic cylinder 9 whose cylinder is fixed on the flat

  rear 18 of the frame and in which slides a piston 19

  connected by a rod 20 to the movable plate 22 carrying the man-

  chon 16 At the end of crimping stroke, this return cylinder 9 is supplied with air by the control device 10 and ensures a uniform return movement of the device to

  in the initial position, with flattening of the main cylinder

cipal 17.

  We will now describe the structure and the

  operation of the control device 10 of the capsuleu-

  refer to the pneumatic circuit diagram given in

  As an example in Figure 3 In this respect it is also

  their note that the circuit could also be of the type

  As shown in Figure 3, compressed air

  36 and feeds several elements in parallel, in particular

  Pneumatic switch 8 of trigger 5 When

  it is actuated, the compressed air arrives by the in-

  of the connection 37 on the one hand to the timer T and on the other hand to the distributor D 1, of the 5/2 differential type in the example under consideration, which then undergoes a control without

  let the air through The timer is on, which means

  to say open and the air thus arrives on the one hand to the other

  end of the dispenser D 1 so as to manipulate its

  and establish the link with the distributor D of com-

  main cylinder 17, and secondly at the inlet of the distributor D 3, of the type 5/2 bistable, serving to control

  the return cylinder 9 but which is then simply piloted.

  If everything is normal, the link 38-39-40-41 is then established

  with the actuator 17 which is consequently actuated and the cylinder

  crimping key is primed; the aforesaid jack may exert

  For example, at the end of the crimping cycle, defined by the regulating timer T, there is no longer control of the distributor D 3, which then assures via the hose 46 supply of the OU-47 cell and therefore, if everything is normal,

  pneumatic cylinder 9 crimping head 12

  it then brings the actuating device 2 back into position.

  initially through rod 40.

  If for any reason of insecurity,

  incorrect positioning of the capsule, or other

  decides to stop the crimp cycle prematurely

  wise, there is provided a security system which will now be described The trigger 5 is of the continuous holding type

  in pressure by the operator's hand during the entire cy-

  crimping key To prematurely stop this cycle, it

  it is enough to release the trigger, which causes the triggering

  of the security system constituted by the

  49, normally closed, and the distributor D 4, type 312 spring-loaded in the example in question This system

  occurs as follows: when the trigger is

  38-39-40-41, and consequently 42, is no longer supplied with air. The non-49 cell, no longer receiving two pneumatic signals at its inputs, switches to

  opening condition and supplies the distributor who

  then nitrates air, through the cell OU-47, to the return cylinder 9 which brings back the capper in condition

  initially thus operating in the sense of security.

  The above description shows that the cap-

  According to the invention, the machine is very efficient and very safe. In order to further improve the handling of the apparatus, it can be fixed by any appropriate means.

  shown in the drawings, a sheath whose axis is pa-

  goes to the line of action of the capping device

  and which is sized to allow the first step

  wise of the operator's hand and then holding his forearm while maneuvering the capper and

  its actuation using the trigger.

  Of course, the invention is not limited to the embodiment described and all modifications and variations within the reach of those skilled in the art do not come out.

not the scope of the invention.

Claims (6)

  1 Manual capper, usable in particular   for valves of pressurized gas cylinders, characterized in that it comprises: a frame (1) in particular of gooseneck, provided with an operating handle (4), a crimping head (12) movable in the frame and cooperating with an anvil (3) integral with the frame, a device (2) for supporting fluidic actuation and guiding said crimping head (12), a mechanism (9) for returning the head, and a fluidic control device (10)   provided with regulation means - (T) and security (49-D 4).   2 manual capper according to the claim   1, characterized in that the crimping head comprises   takes a piston (11) movable inside a sleeve   (16) and cooperating with a sheath (28) sliding   on the outer surface of the sleeve to actuate   a flexible crimping lining (29) placed at the end   of the head (12) so that it rests against the   capsule (C) and apply it tightly against the peripheral   the end of the valve nose (R), thus ensuring if its crimping.   3 capper according to one of the claims   1 or 2, characterized in that the support device,   fluidic actuation and guiding of the service head.   weaving comprises a pneumatic cylinder (17), in particular   Inflatable flat bladder shape placed between a flat tray   xe (21), connected to the frame (1) by guide rods (31,32),   and a movable thrust plate (22) sliding on the   said guide rods and on which is fixed said sleeve   guide (16) of the crimping head (12).   4.Capsulator according to any one of   Claims 1 to 3, characterized in that it is provided in   said sleeve (16) a bumper (24) against which   the crimping piston (11) after compressing a   intermediate return spring (14).   Capper according to any one of   Claims 1 to 4, characterized in that provision is made   on the outer surface of the guide sleeve (16) a shoulder (27) for actuating the outer sleeve (28) of the crimping head (12) at the end of the cycle. 6 Capsule machine according to any one of   claims 1 to 5, characterized in that, for   return the support and actuation device   (2) of the crimping head in the initial position, there is provided one or more return springs acting in compression between the frame (1) and the movable plate of thrust (22).   7 Capper according to any one of the   1 to 5, characterized in that, to ensure the return of the support device and actuation (2) of the   crimping head in the initial position, it is pre-   saw one or more fluidic return cylinders whose cy-   lindre (9) is fixed on the frame (1) and whose piston (19) is connected by a rod (20) to the movable thrust plate (22).   8 Capsule machine according to any one of   Claims 1 to 7, characterized in that the device   fluidic control device comprises a trigger (5) operating by holding a fluidic contactor (8) in operating condition, a timer (T) for adjusting the crimping cycle, a distributor (D 2) for controlling the cylinder   main- (17), a distributor (D 3) for controlling the   return flow (9), a servo distributor (D 1) and a safety logic circuit (NON-49, ET-47, D 4)   to stop the capper during the cycle.