CN203392015U - Belt-feeding mechanism of packing machine - Google Patents

Abstract

The utility model discloses a belt-feeding mechanism of a packing machine and relates to the packing machines. The belt-feeding mechanism comprises a main supporting plate, a driving wheel and a pressure roller are arranged on the main supporting plate, a large belt-guiding support is arranged outside the driving wheel, a small belt-guiding support is arranged outside the pressure roller, and a passageway of a packing belt is sequentially formed between the large belt-guiding support and the driving wheel, between the driving wheel and the pressure roller as well as between the pressure roller and the small belt-guiding support. The pressure roller is fixedly connected with a rocker at the back of the main supporting plate through a bearing and a bolt, the rocker rotates around an axis of the bolt, a tension spring is arranged in a screw hole formed in the lower end of the lever, the other end of the tension spring is mounted on a tension-spring screw, tension force of the tension spring can be adjusted through the tension-spring screw, and a pressure roller is close to the driving wheel all the time under the action of the tension force of the pressure roller. The tension force, when needed adjusting, is adjusted well by pulling the tension-spring screw and rotates a nut tightly. By the belt-feeding mechanism which is quite simple in structure, belt feeding and discharging are reliable and can be adjusted conveniently.

Description

A kind of tape-feed of compress

Technical field

The utility model relates to compress, especially relates to a kind of tape-feed of compress.

Background technology

At present, S. A. and full automatic packing machine adopt send band portion, a kind ofly 4 pinch rollers, consists of, the first two pinch roller is responsible for sending band, latter two pinch roller is responsible for take-up, and this structure is easily crooked strap compressive strain, and belt surface printing reticulate pattern is destroyed; Another kind tightens up the arm of force by two pinch rollers and one and forms, go out take-up and gentlier push down belt by two pinch rollers, belt is sent fast and regained, when take-up need to firmly be strained, by the cassette tape piece on the take-up arm of force, clamp belt, the arm of force swings tension belt more backward, the strength of such structure when going out take-up is fast little, needs auxiliary storage cassette holder mechanism, and need to be transformed into the take-up arm of force and strain, responsiveness is slow, complex structure.

As can be seen here, the current belt tightening mechanism that goes out has the shortcomings such as strap is yielding, complex structure, slow motion.

Summary of the invention

The purpose of this utility model is to go out for existing compress the deficiency that belt tightening mechanism exists, and a kind of tape-feed of compress is provided.

The utility model is provided with main support plate, on main support plate, be provided with driving wheel and pinch roller, described driving wheel outside is provided with large conduction band support, pinch roller outside is provided with little conduction band support, between large conduction band support and driving wheel, between driving wheel and pinch roller and form successively the passage of strap between pinch roller and little conduction band support;

Described pinch roller is fixedly connected with the fork after main support backboard with screw by bearing, described fork be take rotating screw as axis swing, on the screw of fork lower end, be provided with an extension spring, the other end of extension spring is contained on extension spring screw, extension spring can regulate pulling force by extension spring screw, pinch roller under the effect of extension spring power all the time near driving wheel, while needing regulating spring power, as long as pull extension spring screw, after adjusting, rotating nut is standby tight.

The skin of described driving wheel is preferably surrounded by layer of polyurethane, makes the existing certain elasticity of dynamics of pressure zone have again enough intensity.

Of the present utility modelly go out to be with take-up not only reliable, easy to adjust, and structure is very simple.

Accompanying drawing explanation

Fig. 1 is that the structure of the utility model embodiment forms schematic diagram.

Fig. 2 is pinch roller and the swing rod structure schematic diagram of the utility model embodiment.

Fig. 3 is the A-A section-drawing of Fig. 2.

Fig. 4 is the B-B section-drawing of Fig. 2.

The specific embodiment

Following examples are further described the utility model in connection with accompanying drawing.

Referring to Fig. 1～4, the utility model embodiment is provided with main support plate 1, on main support plate 1, be provided with driving wheel 2 and pinch roller 3, described driving wheel 2 outsides are provided with large conduction band support 4, pinch roller 3 outsides are provided with little conduction band support 5, between large conduction band support 4 and driving wheel 2, between driving wheel 2 and pinch roller 3 and form successively the passage of strap 6 between pinch roller 3 and little conduction band support 5; Described pinch roller 3 is fixedly connected with main support plate 1 fork 7 behind with screw by bearing, described fork 7 be take rotating screw 8 as axis swing, on the screw 71 of fork 7 lower ends, be provided with an extension spring 9, the other end of extension spring 9 is contained on extension spring screw, extension spring 9 can regulate pulling force by extension spring screw 10, pinch roller 3 under the effect of extension spring power all the time near driving wheel 2, while needing regulating spring power, as long as pull extension spring screw 10, after adjusting, rotating nut 11 is standby tight.

Driving wheel 2 skins are surrounded by layer of polyurethane, make the existing certain elasticity of dynamics of pressure zone have again enough intensity.In Fig. 1, mark P1 is for going out to be with direction, and P2 is for tightening up direction.

In Fig. 3, mark 12 is stop collar.

As shown in Figure 1, driving wheel is left-hand revolution before this, strap is sent fast, when deliver to need length after transmitted signal, driving wheel is clickwise, and pinch roller compression strap oppositely tightens up band, and the size of tightening force only need regulate extension spring screw, standby jack panel, the utility model is simple in structure, easy to adjust.

Claims (2)

1. the tape-feed of a compress, it is characterized in that being provided with main support plate, on main support plate, be provided with driving wheel and pinch roller, described driving wheel outside is provided with large conduction band support, pinch roller outside is provided with little conduction band support, between large conduction band support and driving wheel, between driving wheel and pinch roller and form successively the passage of strap between pinch roller and little conduction band support;

Described pinch roller is fixedly connected with the fork after main support backboard with screw by bearing, described fork be take rotating screw as axis swing, on the screw of fork lower end, be provided with an extension spring, the other end of extension spring is contained on extension spring screw, extension spring can regulate pulling force by extension spring screw, pinch roller under the effect of extension spring power all the time near driving wheel, while needing regulating spring power, as long as pull extension spring screw, after adjusting, rotating nut is standby tight.

2. a kind of tape-feed of compress as claimed in claim 1, is characterized in that the skin of described driving wheel is surrounded by layer of polyurethane.

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