CN2930921Y - Brake drive mechanism for holding device of feeding machine - Google Patents

Abstract

A braking motivate mechanism used in the clamping means of the feeding device comprises a hollow cylinder with two bottoms; a dividing film arranged in the hollow cylinder, dividing the hollow cylinder into a front chamber provided with an opening for compressed air and a back chamber,; a tappet stored in the front chamber with one end extended outside the front chamber and the other resisted to one surface of the dividing film by the action of a spring; a return rod positioned in the back chamber with the front end always resisting to the other surface of the dividing film by the action of a spring. When compressed air enters through the opening, the force acts in the front chamber side is larger than the spring force act to the return rod, which makes the tappet retreat in the front chamber, thereby releasing the braking power.

Description

The brake actuating mechanism of feeder clamping device

Technical field:

The utility model relates to the brake actuating mechanism of clamping device of the feeder of a kind of biscuit volume usefulness.Especially refer to a kind of actuating mechanism, when air pressure is not worked, can keep actuating mechanism to produce braking action, and can guarantee the stability of clamping operation and the safety in operation place by pneumatic cylinder.

Background technology:

Tradition biscuit volume feeder, when biscuit being rolled up the metal sheet unwinding of being reeled and sending in the processing station, need to cooperate the actuating length of the working rig on the processing station, behind the sheet metal of sending into fixed length, keep a scheduled time, and after processing station is finished the processing stroke, send into the sheet metal of fixed length again.So, the metal sheet on biscuit is rolled up is unwinding gradually.And, keep its motionless state for when the biscuit volume stops, and then utilize a pneumatic cylinder priming clamping device, the brake of biscuit volume is lived.But in practical operation, in case when not having the failure condition of air pressure, clamping work was promptly lost efficacy, but cradle is rotated further, and makes metal sheet constantly cause the phenomenon of bulk cargo from biscuit volume unwinding.At this moment, if there is the staff to work, will has again and be subjected to the potential danger that the metal sheet stock wounds on the side.

The utility model content:

Because traditional feeder can't effectively be avoided the potential problems that lost efficacy, the brake actuating mechanism that provides a kind of feeder clamping device to use is provided main purpose of the present utility model, under the situation that no air pressure exists, clamping device is remained under the brake state, exist down in air pressure to discharge brake.

The brake actuating mechanism of feeder clamping device provided by the utility model, it is included in one has in the hollow cylinder body of two bottoms, is divided into two Room by a barrier film, and wherein a Room is a cup, accommodate a tappet, its rear end is made front end intact cylinder body in cup is outstanding of tappet by spring action; Another chamber is the chamber, back, contains the return bar by spring action, makes the front end of return bar be butted on the rear end of tappet constantly across barrier film at the opposite side of barrier film.

So, send into air pressure at the cup of barrier film, and retreat via the return bar that barrier film resistance acts on the barrier film, tappet is then return in the cup by effect spring action thereon, thereby the front end of tappet leaves and discharged clamping action.Otherwise after the air pressure of cup was released, the return bar was butted on the rear end of tappet by the work of spring again in order to its front end and it is pushed ahead, and the front end that makes tappet is carried out the brake function with the priming clamping device to cup is outstanding once again.

According to the utility model, it is butted on the anchor at the spring of return rod rear end effect, and the rear end of anchor forms the threaded portion and protrudes in outside the hollow cylinder body, by a nut anchor is fixed on the hollow cylinder body.So can adjust the size that the return bar acts on the spring force of tappet via the cooperation of threaded portion and nut, to adjust the size of brake strength.

Employing is with upper type, thus utilize the utility model needn't be as traditional approach air pressure must maintain brake and be in good shape and just can guarantee the handling safety of feeder, thereby utilize machine security maintenance of the present utility model work simple relatively.

Description of drawings:

Fig. 1 is stereoscopic figure of the present utility model.

Fig. 2 is an exploded perspective view of the present utility model.

Fig. 3 is the sectional block diagram of Fig. 1.

Fig. 4 is the front view of Fig. 3.

Fig. 5 is that the utility model is in brake duty schematic isometric.

Primary clustering symbol description among the figure:

1. brake actuating mechanism; 2. clamping device; 3. gas port; 4. anchor clamps; 5. nut; 101. hollow cylinder body; 102. barrier film; 1021. cup; 1022. back chamber; 103. tappet; 104. return bar; 105. spring; 106. anchor; 107. spring.

The specific embodiment:

At first, please refer to Fig. 2, Fig. 3 and Fig. 4, clamping device of the present utility model mainly comprises: a hollow cylinder body 101 with the brake actuating mechanism; The position is at the barrier film 102 of cylinder body 101 inside, and it is separated into cup 1021 and chamber 1022, back with cylinder body 101 inside; Be housed in the tappet 103 of cup 1021; And the return bar 104 in the chamber 1022 after being housed in.Wherein tappet 103 acts on its rear end by spring 105, has the trend of rearward returning; And the return bar is acted on by the spring 107 that an end is butted on anchor 106, has the trend that moves forward all the time, is butted on the bottom of barrier film 102 with its front end.

According to the utility model, as shown in Figure 5, when cooperating clamping device 2 to use brake actuating mechanism of the present utility model 1, when the gas port 3 of gases at high pressure on cylinder body 101 cups 1021 entered, these gases at high pressure make the strength of barrier film 102 resistance springs 107, force return bar 104 to be drawn back.So, promptly follow moving together backward of barrier film 102 by the tappet 103 of spring 105 effect constantly and move backward, thereby the front end of tappet 103 left the clamping device 2 that is acted on, the anchor clamps 4 on clamping device 2 can discharge clamping strength.

Otherwise when air pressure is released, as shown in Figure 4, spring 107 makes return bar 104 to reach again again, and resistance spring 105 makes tappet 103 promote clamping device 2 again in the strength of tappet 103, makes anchor clamps 4 that braking action take place.So, utilize the utility model, in the normal state, produce braking action by the strength of spring, that can guarantee to brake normally stablizes operation.

Again, as shown in Figure 4, adjust the degree that moves forward of tappet 103 as desire, can anchor 106 be moved forward and backward via rotary nut 5, adjust the elongation or the compression of spring 107, promote the mobile degree of tappet 103 to change return bar 104, thereby adjusted the clamping degree of anchor clamps 4 on the clamping device 2, the size of the strength of promptly braking.

Claims (2)

1. a feeder clamping device is characterized in that with the brake actuating mechanism, comprising:

One has the hollow cylinder body of two bottoms;

One barrier film is arranged in the hollow cylinder body, and the hollow cylinder body is separated into cup and chamber, back, is provided with the compressed air gas port at cup;

One tappet, a distal process goes out outside the cup, and the other end is against on the end face of barrier film; Described tappet sleeve is located in the spring, and described spring is housed in the cup;

One return bar, its sheathed another spring position is indoor in the back, and described return bar front end is butted on the other end of barrier film.

2. feeder clamping device as claimed in claim 1 brake actuating mechanism, it is characterized in that, wherein an end is sheathed on the spring on the return bar, its other end is anchored on the anchor, the then outstanding back of the other end of anchor is outdoor and be furnished with screw thread, and a nut revolves and is located at the screw thread on the anchor and is fixed on the hollow cylinder body.

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