The pressing wheel device of Adhesivetape box-sealing machine core
Technical field
The utility model relates to tape sealing machine, relates in particular to the pressing wheel device of Adhesivetape box-sealing machine core.
Background technology
The movement of tape sealing machine is in the tape sealing machine adhesive tape to be sealed on the top cover of packing chest or the device of bottom, and pressing wheel device wherein plays the effect that adhesive tape is pressed on the top cover or the bottom of vanning, is the important device that guarantees the joint sealing quality.Pressing wheel device in the past, comprise movement side plate, rotatable preceding pinch roller frame and rotatable back pinch roller frame, connecting rod, extension spring, the two ends of connecting rod are rotationally connected with rotatable preceding pinch roller frame and rotatable back pinch roller frame respectively, one end of extension spring links to each other with the back pinch roller frame, the other end of extension spring is connected on the connecting rod by the bolt connecting hole on bolt and the connecting rod, connecting rod is provided with several bolt connecting holes, is used for regulating the restoring force of extension spring, to guarantee the normal operation of pinch roller.But the pressing wheel device of this structure, the adjusting of extension spring are very inconvenient, especially can not influence the efficient of tape sealing machine at the joint sealing scene according to the extension spring of actual conditions quick adjustment.And, adopt this extension spring connection structure, extension spring is tired easily, has further increased extension spring and has regulated the probability of operating.
Summary of the invention
Technical problem to be solved in the utility model provides the pressing wheel device of a kind of extension spring Adhesivetape box-sealing machine core easy to adjust.For this reason, the utility model is by the following technical solutions: it comprise the movement side plate, rotatable before pinch roller frame and rotatable back pinch roller frame, connecting rod, extension spring, the two ends of connecting rod are rotationally connected with rotatable preceding pinch roller frame and rotatable back pinch roller frame respectively, one end of extension spring links to each other with the back pinch roller frame, described movement side plate is provided with the profile of tooth gear of regulating extension spring, described pressing wheel device is provided with the adjust bar that cooperates with the profile of tooth gear, and the other end of described extension spring links to each other with adjust bar.Owing to adopt the technical solution of the utility model, the utility model is by regulating the position of adjust bar on the profile of tooth gear, can very conveniently carry out extension spring apace regulates, and, in use, extension spring only is subjected to the pulling force of an end, pressing wheel device more in the past, extension spring is not easy fatigue, longer service life.
Description of drawings
Fig. 1 is embodiment provided by the utility model, the scheme drawing after removing a side movement side plate.
Fig. 2 is the front view after removed movement side plate is installed embodiment illustrated in fig. 1.
The specific embodiment
With reference to accompanying drawing.The utility model comprises movement side plate 1, rotatable preceding pinch roller frame 2 and rotatable back pinch roller frame 4, connecting rod 3, extension spring 5, the two ends of connecting rod are rotationally connected with rotatable preceding pinch roller frame and rotatable back pinch roller frame respectively, one end of extension spring links to each other with the back pinch roller frame, described movement side plate is provided with the profile of tooth gear of regulating extension spring, described pressing wheel device is provided with the adjust bar 6 that cooperates with the profile of tooth gear, and the other end of described extension spring links to each other with adjust bar.
The profile of tooth gear is by its gear tooth location adjust bar, and this profile of tooth gear can adopt the mode of offering serrate slot 12 on the movement side plate by present embodiment, processes more conveniently like this, locatees also more reliable.Certainly, the profile of tooth gear also can adopt the frame modes such as part that connect the fluted projection of profiled parts or interval on the movement side plate.
With reference to accompanying drawing 1, the rotary supporting shaft 7 of preceding pinch roller frame is bearing on the side plate 1, drawing reference numeral 31 is the position that is rotationally connected of preceding pinch roller frame and connecting rod, and preceding pinch roller frame links to each other at this place with connecting rod, when packing chest is pressed arrow direction shown in Figure 1, preceding pinch roller 21 on the preceding pinch roller frame is pushed up from initial bit by casing, pinch roller frame rotates before driving, and preceding pinch roller frame drivening rod 3 rotates, simultaneously, preceding pinch roller abuts in tank surface, compresses adhesive tape.Drawing reference numeral 8 is the position that is rotationally connected of back pinch roller frame and connecting rod, drawing reference numeral 9 is the rotary supporting shaft of back pinch roller frame, it is bearing on the side plate 1, drawing reference numeral 41 be the back pinch roller frame on extension spring bonded assembly extension spring pipe link, drawing reference numeral 42 is for being located at the back pinch roller on the pinch roller frame of back, after connecting rod rotates, driving the back pinch roller frame rotates, extension spring is stretched, when packing chest break away from forward and backward pinch roller 21 and 42 contact after, before pinch roller frame 2 and back pinch roller frame 4 under extension spring 5 effects, reply, wherein the back pinch roller firmly is attached to the adhesive tape afterbody trailing flank of casing after adhesive tape is cut off.In force, regulate extension spring, only need operating personal to make it be in positions different in the serrate slot and get final product with hand direct control adjust bar as need, very convenient.In the drawings, drawing reference numeral 10 is the adhesive tape one-way rolling, and drawing reference numeral 11 is for cutting off the blade of adhesive tape.