Background technology:
Traditional food calendar rolls distance regulating mechanism is unidirectional adjustment form, and lower compression roller is fixed in frame, and top roll upper-lower position is adjustable.Mechanical stop limiter is had above top roll, for limiting the upper extreme position of top roll, not spacing below top roll.The position of regulation limiting device, can determine the extreme higher position of top roll, indirectly determines the thickness by wearing between roller.But not having stopping means below top roll, is wear the thrust of being out of shape generation by centre finally to determine its physical location.The roller spacing that this regulative mode is formed is worn hardness to be affected comparatively large, if it is less to wear hardness, then top roll can not reach upper extreme position, and roller spacing is less than normal, and wearing can be thinning, will formation wear stacking before rear road calendering mechanism.And transmission is gear drive between roller, because of needs adjustment roller spacing, the centre-to-centre spacing of two travelling gears also changes thereupon, makes sideshake in gear drive process comparatively large, thus causes system noise excessive, the problems such as gear life is too short.In addition, this kind of press that connects adopts a power transmission, and each road connects press mechanism power by chain transmission, and mechanical efficiency is very low, and fault rate is high, does not possess single track rotational speed regulation function, complicated operation.
Goal of the invention:
The technical problem that the present invention solves: design a kind of food calendar rolls distance regulating mechanism, overcome prior art roller spacing by the defect worn hardness and affect, and change the kind of drive, improve transmission efficiency and stationarity, make whole calender line thickness controlled, and can automatically adjust between each roller roll when rotating ratio according to wearing soft durometer, ensure product quality.
Technical solution of the present invention: a kind of food calendar rolls distance regulating mechanism, comprise frame, top roll and lower rod, and lower roll is arranged on the below of frame by bearing; The top of described frame is symmetrically installed with a pair sleeve, the two ends of described top roll by bearing respectively bias be arranged in a pair sleeve; The outer face of described sleeve has worm gear; The top of described frame is symmetrically installed with a pair worm screw, and worm and wheel is meshed, and described worm screw passes through driven by servomotor.
The axis of described top roll is positioned at the below of the axis of a pair sleeve.
Described lower rod is driven by the direct-connected motor reducer of its right-hand member, and the left end of top roll and lower rod is fixed with passive and synchronous belt wheel and active synchronization belt wheel respectively; The left end of described frame is provided with two regulating wheels, and regulating wheel is positioned at the below of active synchronization belt wheel, and active synchronization belt wheel drives passive and synchronous belt wheel to rotate by ring-shaped synchronous belt and two regulating wheels.
Described sleeve and worm gear are structure as a whole.
The advantage that the present invention compared with prior art has and effect:
1, present invention achieves roller spacing automatically to regulate, and possess roller spacing lock function, during multiple tracks calendaring linkage, roller spacing can be adjusted in real time, make whole calender line thickness controlled, ensureing not produce sideslip, fracture, packing phenomenon when wearing by connecting press.
2, present invention achieves per pass calendering separate transmission, often pair of pressure roller rotating speed independently can be adjusted as required, improve transmission efficiency and stationarity, and can automatically adjust between each roller roll when rotating ratio according to wearing soft durometer, guarantee product quality.
3, between roller of the present invention, transmission adopts toothed belt transmission, overcomes that gear transmission noise is large, the life-span is short and gear grease easily produces the problem of pollution.
Detailed description of the invention:
1,2,3 a kind of embodiment of the present invention is described by reference to the accompanying drawings.
A kind of food calendar rolls distance regulating mechanism, comprise frame 1, top roll 2 and lower rod 3, and lower roll 3 is arranged on the below of frame 1 by bearing.The top of described frame 1 is symmetrically installed with a pair sleeve 4, the two ends of described top roll 2 by bearing respectively bias be arranged in a pair sleeve 4, and make the axis of top roll 2 be positioned at the below of the axis of a pair sleeve 4; The outer face of described sleeve 4 has worm gear 5, and the top of described frame 1 is symmetrically installed with a pair worm screw 6, and worm screw 6 is meshed with worm gear 5, and described worm screw 6 is driven by servomotor 7.
Described sleeve 4 is structure as a whole with worm gear 5.Described lower rod 3 is driven by the direct-connected variable-frequency motor decelerator 8 of its right-hand member, and the left end of top roll 2 and lower rod 3 is fixed with passive and synchronous belt wheel 9 and active synchronization belt wheel 10 respectively; The left end of described frame 1 is provided with two regulating wheels 11, and regulating wheel 11 is positioned at the below of active synchronization belt wheel 10, and active synchronization belt wheel 10 drives passive and synchronous belt wheel 9 to rotate by ring-shaped synchronous belt 12 and two regulating wheels 11.
The present invention is according to eccentric adjustment concept, and servomotor 7 drives worm screw 6, drives worm gear 5 by worm screw 6, and then sleeve 4 is rotated.When sleeve 4 rotates, the axis of top roll 2 moves up and down relative to sleeve 4 cylindrical, thus realizes the adjustment of roller spacing.
The present invention is linked in sequence together by continuous calendar in practical application exactly, completes continuous calendering process.And due to material physical characteristic difference, require adjustment per pass roller space and pressure roller rotating speed.Such as produce in continuous calendering process at vermicelli, if rotating speed or spacing are not mated just to there will be to wear and strained or stacking situation between Qian Dao with rear road pressure roller.The present invention not only achieves per pass calendering separate transmission, often pair of pressure roller rotating speed independently can be adjusted as required, improve transmission efficiency and stationarity; And achieve roller spacing and automatically adjust, and possess roller spacing lock function, make can adjust roller spacing in real time during multiple tracks calendaring linkage, whole calender line is made to wear thickness controlled, and can automatically adjust between each roller roll when rotating ratio according to wearing soft durometer, guarantee does not produce sideslip, fracture, packing phenomenon when wearing by connecting press, ensures product quality.
Above-described embodiment, just preferred embodiment of the present invention, is not used for limiting the scope of the present invention, therefore all equivalent variations done with content described in the claims in the present invention, within the claims in the present invention scope all should be included in.