Powder feeding screw device of bag powder injecting machine
A screw and powder injection technology, applied in packaging and other directions, can solve the problems of low measurement weight stability, inaccurate powder net weight control range, low product qualification rate, etc., to reduce density fluctuations and feed fluctuations, The effect of ensuring stability and improving product qualification rate
Inactive Publication Date: 2011-11-16
美赞臣营养品(中国)有限公司
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Problems solved by technology
However, since the density of the powder between the forming cylinder and the lower powder screw cannot be guaranteed to be in a constant state, the stability of the metering weight is not high, and the control range of the net weight of the powder is not accurate. The control range is within 390~426g, and the qualified rate of the product is not high
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[0018] The specific implementation manners of the present invention will be further described in detail below in conjunction with the accompanying drawings.
[0019] like Figure 1 to Figure 3 As shown, the powder lowering screw device of the bag powder injection machine according to the present invention is arranged below the outlet of the lower hopper 1 of the bag powder injection machine body. The powder lowering screw device includes a powder lowering screw 2 and a forming cylinder 3, the forming cylinder 3 is connected below the outlet of the lower hopper 1, the powder lowering screw 2 is arranged in the forming cylinder 3, and the outer edge of the spiral blade of the powder lowering screw 2 and the forming cylinder 3 The inner walls cooperate, and the powder lowering screw 2 is driven to rotate by the driving mechanism. During production, the powder feeding screw rotates at a certain angle, and the quantitative milk powder flows down from the feeding hopper and forming...
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The invention discloses a powder feeding screw device of a bag powder injecting machine. The powder feeding screw device of the bag powder injecting machine comprises a powder feeding screw (2) and a forming cylinder (3), wherein the powder feeding screw (2) is arranged in the forming cylinder (3); the spiral blade of the powder feeding screw (2) is matched with the inner wall of the forming cylinder (3); and the lower end of the powder feeding screw (2) is uniformly provided with multiple fins (4) arranged in a radial mode. After the fins are additionally arranged at the lower end of the powder feeding screw, the fins have an effect of stirring powder during powder feeding, the density of powder between the forming cylinder and the powder feeding screw and the powder feeding stability can be effectively controlled, and fluctuations in the density and feed amount of the powder are reduced, thereby guaranteeing stable net weight and reducing the condition of excessive and insufficient powder injection. If 400 g of milk powder in each bag is produced, the control range of net weight is increased from original 390-426 g to 393-412 g, and the product percent of pass is improved.
Description
technical field [0001] The invention relates to the field of bagged milk powder production equipment, in particular to a powder lowering screw device of a bag powder injection machine used for milk powder production. Background technique [0002] At present, the bag powder injection machine used for milk powder production is manufactured by Rovema, Germany. Its body is provided with a lower hopper, and the lower hopper is connected with a powder-feeding screw and a forming cylinder. The powder-feeding screw is arranged in the forming cylinder. The outer edge cooperates with the inner wall of the forming cylinder, and the powder lowering screw is driven to rotate by the driving mechanism. During the production process, the weight is measured by using the volume between the pitches of the powder-feeding screw to rotate at a certain angle within a certain period of time. The powder-feeding screw rotates at a certain angle, and the quantitative milk powder flows down from the ho...
Claims
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Inventor崔久进
Owner美赞臣营养品(中国)有限公司