Tubular membrane reeling, unreeling and stretching mechanism
A technology of tubular and tension springs, which is applied in multiple packaging, packaging, transportation and packaging, etc. It can solve the problems of plastic deformation of the nozzle, difficulty in falling out of the nozzle, and easy damage of the tubular film, so as to avoid The effect of plastic deformation
Active Publication Date: 2011-09-07
HARBIN BOSHI AUTOMATION
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Problems solved by technology
[0003] The technical problem to be solved by the present invention is: the existing tubular film collection, stretching and release mechanism is easy to cause plastic deformation of the nozzle, the nozzle is not easy to come out, and the stretched tubular film is easily damaged
Method used
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[0009] The specific embodiment of the present invention sees Figure 1 to Figure 6 , the present invention comprises driving wheel (3), pairing wheel (2), angle stretching piece (1), support (10), bottom plate (7), swing frame (8), spring (9) etc., driving wheel (3 ) is driven by a reduction motor (4), the reduction motor (4) is fixed on the upper end of the swing frame (8), the driving wheel (3) is fixed on the output shaft (11) of the reduction motor (4), and the swing frame (8) The lower end is provided with a rotating shaft (12), the rotating shaft (12) is hinged with the rotating shaft seat (13), the rotating shaft seat (13) is fixed on the base plate (7), the swing frame (8) is pushed by the cylinder (5), and the cylinder (5) The front end cylinder rod is hinged to the middle part of the swing frame (8), and the tailstock of the cylinder (5) is fixed on the backing plate (6). When the cylinder rod of the cylinder (5) stretches out, the driving wheel (3) and the mating wh...
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The present invention discloses a tubular membrane reeling, unreeling and stretching mechanism, which is applied to a membrane pre-stretching and sleeving device. The tubular membrane reeling, unreeling and stretching mechanism aims to solve the problems that a conventional tubular membrane colleting, stretching and unreeling mechanism is easy to plastically deform a tube orifice and that tubular membranes are easy to damage. The tubular membrane reeling, unreeling and stretching mechanism comprises a driving wheel (3), a pairing wheel (2), an angular stretching element (1), a bracket (10), a bottom plate (7), a swinging frame (8), a spring (9) and the like, wherein the driving wheel (3) is connected to the upper end of the swinging frame (8) of which a lower end is hinged with the bottom plate (7); the driving wheel (3) is arranged opposite to the pairing wheel (2); the pairing wheel (2) is positioned at the upper end of the bracket (10) of which the lower end is fixed on the bottom plate (7); the upper end of the angular stretching element (1) is hinged with the bracket (10), while the lower end is provided with a second suspension hoop (15); the bottom plate (7) is provided with a first suspension hoop (14); and the spring (9) is connected between the second suspension hoop (15) and the first suspension hoop (14). Through the swinging type angular stretching element (9), damage to the tubular membranes is avoided in the process of unreeling the tubular membranes.
Description
technical field [0001] The invention relates to a mechanism used in a pre-stretching film device. The mechanism collects, pre-stretches and releases an open tubular film, thereby covering the tubular film on goods, and belongs to the field of packaging machinery. Background technique [0002] With the improvement of the quality requirements for goods packaging, pre-stretched hood technology has gradually been widely used due to its high efficiency, energy saving and environmental protection characteristics. Patent document 02806886.6 discloses a tubular film pleating, stretching and releasing mechanism used in a stretch hood device. The line connecting the driving wheel and the center of the mating wheel is not at the horizontal position, but forms a certain angle with the horizontal line The disadvantage of this mechanism is that when the tubular film is released to the end section, that is, the nozzle section, the nozzle is not easy to come out from the stretched part, and...
Claims
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IPC IPC(8): B65B9/13
Inventor 王东基赵秋含
Owner HARBIN BOSHI AUTOMATION