Extruding device used in breathing mask production line
A breathing mask and extrusion device technology, applied in the field of extrusion devices, can solve the problems of increased temperature in the feeding section of the screw 4, unguaranteed product weight, unstable extrusion speed, etc., to achieve stable extrusion speed, Simple structure and stable flow
Inactive Publication Date: 2012-12-05
张家港市同创机械有限公司
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Problems solved by technology
[0004] The shortcoming of above-mentioned extruding device is: along with the growth of service time, the temperature of screw rod 4 feeding section can increase gradually
If the temperature is above 50°C, the flow rate of the PVC material in the feeding section will be unstable, and the instability of the flow rate in the feeding section will cause the extrusion speed to be unstable, so that the weight of the product cannot be guaranteed. affect the quality of the product
Method used
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[0018] The extrusion device in the breathing mask production line of the present invention will be further described in detail through specific examples below.
[0019] Such as figure 1 , image 3 As shown, the extrusion device in the respiratory mask production line includes a gear box 1 and a barrel 2 connected to the gear box 1. The barrel 2 is provided with a feed port 3, and the inside of the barrel 2 is provided with a screw 4. The gear The output shaft 5 of the box 1 is connected with the screw 4, the inside of the screw 4 is provided with a screw water cooling chamber 6, the inside of the output shaft 5 is provided with an output shaft water cooling chamber 7, and the output shaft water cooling chamber 7 communicates with the screw water cooling chamber 6 , the rear end of the output shaft 5 is provided with a rear end cover 8, the rear end cover 8 is connected with the output shaft 5 through the rear plane thrust bearing 9, and the connection between the rear plane ...
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The invention relates to an extruding device used in a breathing mask production line. The extruding device comprises a gear box and a cylinder connected to the gear box, wherein a feeding port is formed on the cylinder; a screw rod is arranged in the cylinder; a force-applying shaft of the gear box is connected to the screw rod; a screw rod water-cooling chamber is arranged in the screw rod; a force-applying shaft water-cooling chamber is arranged in the force-applying shaft; the force-applying shaft water-cooling chamber is communicated with the screw rod water-cooling chamber; a rear end cover is arranged at the rear end of the force-applying shaft; the rear end cover is connected to the force-applying shaft through a rear planar thrust bearing; a water inlet and a water outlet are formed in the rear end cover; the water inlet and the water outlet are both communicated with the force-applying shaft water-cooling chamber; and the water inlet is connected to a water supply device. The extruding device provided by the invention is suitable for the breathing mask production line and can be used for keeping the temperature of a feeding section of the screw rod within a temperature range of 30-40 DEG C, thereby keeping the stable flow rate of PVC (polyvinyl chloride) materials in the feeding section, further keeping the stable extruding speed, ensuring the weight of products and promoting the quality of products.
Description
technical field [0001] The invention relates to the technical field of respiratory mask production equipment, in particular to an extrusion device in a respiratory mask production line. Background technique [0002] Respiratory masks are used in conjunction with oxygen and other equipment to help patients breathe. The raw material is PVC (polyvinyl chloride) material for medical use. PVC material is a non-crystalline material that is non-flammable, high-strength, and weather-resistant. and excellent geometric stability. [0003] When the breathing mask is made, the PVC material is extruded through the extrusion device and enters the die, and then enters the mold through the die to form. Such as Figure 5 As shown, the structure of the currently used extrusion device includes a gear box 1 and a barrel 2 connected to the gear box 1. The barrel 2 is provided with a feed port 3, and the inside of the barrel 2 is provided with a screw 4. The output shaft 5 of the gearbox 1 is c...
Claims
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IPC IPC(8): B29C47/80B29C47/92B29K27/06B29C48/92
CPCB29C48/92B29C2948/92704B29C2948/92885
Inventor 祁晓东
Owner 张家港市同创机械有限公司