Packaging film traction device and packaging film traction method
A technology of traction device and packaging film, applied in the directions of packaging material feeding device, packaging, transportation packaging, etc., can solve the problems of slow speed, leakage of packaging bags, and poor heat sealing effect, so as to reduce losses and reduce processing costs. , the effect of improving the effect
Active Publication Date: 2016-06-01
天津奥特玛科技有限公司
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Problems solved by technology
[0004] 1. Use heating rollers to drag the packaging film to travel a certain distance, and complete the heating and sealing of the film at the same time; this method is fast, because it is instantaneous heating and sealing, the heat sealing effect is not strict, and it is easy to cause leakage of the packaging bag
[0005] 2. The packaging bag is sealed intermittently through the heating plates on both sides; this method has a good sealing effect, but the speed is slow, generally 50 bags / min
Method used
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Embodiment Construction
[0028] See attached figure 1 , 2 , the packaging film traction device disclosed in the present invention includes the following parts: two clamping mechanisms, respectively clamping mechanism one 2 and clamping mechanism two 3, are arranged successively on the conveying direction of packaging film 1, and can hold the packaging film 1 Alternate clamping and sealing are carried out at the same time, and the clamping mechanism 2 3 is always overlappingly clamped on the clamping position of the clamping mechanism 1 2 to form a secondary sealing effect; the two conveying mechanisms are respectively conveying mechanism 1 6 and The conveying mechanism 2 7 is fixedly connected with the clamping mechanism 1 2 and the clamping mechanism 2 3 respectively, and drives them to move back and forth in the conveying direction of the packaging film 1 .
[0029] In the further setting of this embodiment, the first conveying mechanism 6 and the second conveying mechanism 7 both adopt a belt tran...
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The invention provides a packaging film pulling method. According to the method, a first clamping mechanism and a second clamping mechanism are sequentially arranged in the conveying direction of a packaging film so that the packaging film can be alternately clamped, sealed and pulled at the same time, when the first clamping mechanism moves by half of the length of a packaging bag, the packaging film is clamped by the second clamping mechanism, the second clamping mechanism and the first clamping mechanism move at the same speed in the same direction, and the position where the packaging film is clamped by the second clamping mechanism overlaps with the position where the packaging film is clamped by the first clamping mechanism all the time; when the first clamping mechanism and the second clamping mechanism move by one fourth of the length of the packaging bag at the same speed in the same direction, the first clamping mechanism lets the packaging film go and quickly returns to the initial position of the first clamping mechanism, and the second clamping mechanism lets the packaging film go and returns to the initial position of the second clamping mechanism after performing continuous uniform motion by one fourth of the length of the packaging bag. The method has the advantages that the packaging speed is greatly increased while the sealing effect of the packaging bag is enhanced, loss of a user caused when the packaging bag is not sealed tightly is reduced, and meanwhile the production speed is increased.
Description
technical field [0001] The invention belongs to the technical field of packaging auxiliary equipment, and in particular relates to a packaging film traction device and a packaging film traction method. Background technique [0002] Packaging film or packaging bag is widely used in the packaging and sealing of items to ensure the airtightness and flatness of the packaging bag and the safety of the items, and the practical roll film material for packaging has higher production efficiency. [0003] In the prior art, the traction method of the packaging film in the packaging film packaging equipment generally adopts rolling heat-sealing traction, and the packaging bags separated from the packaging film are sealed by instantaneous heating. The sealing time is short, the sealing strength is low, and the flatness is poor. Concrete two kinds of prior art are as follows: [0004] 1. The heating rollers are used to drag the packaging film for a certain distance, and at the same time ...
Claims
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IPC IPC(8): B65B51/10
CPCB65B41/14B65B51/10
Inventor 宋昕
Owner 天津奥特玛科技有限公司