CN101244630A

CN101244630A - Non-woven plastic braided bag machine group

Info

Publication number: CN101244630A
Application number: CNA2008100601648A
Authority: CN
Inventors: 刘芝生
Original assignee: Individual
Current assignee: Individual
Priority date: 2008-03-12
Filing date: 2008-03-12
Publication date: 2008-08-20

Abstract

The invention relates to a piece of manufacturing equipment for plastic packing bags, in particular to a non-woven plastic knitted sack set, which is characterized in that a dynamic forming die head is connected with an extruder in a blanking tube device; the dynamic forming die head comprises an outer die and an inner die; the outer die and the inner die are movably matched with each other to do vertical movement; a plurality of organzine passages are evenly distributed on the circumferential surface of an inner cone of the outer die; a gap between the circumferential surfaces of the cone of the inner die and the inner cone of the outer die forms a plastic passage; the angles of the circumferential surfaces of the cone of the inner die and the inner cone of the outer die are identical. The manufacturing equipment has the advantages that the bearing capacity of the plastic packing bags produced by the set is enhanced by 25 to 30% compared with the plastic knitted sack in the prior art, the material is saved by 25 to 30%, thereby reducing the cost; the knitting machine is not required, thereby saving the replacement and repair expenses of vulnerable parts of the knitting machine; only four persons are required for operation per shift, thereby saving about fifty persons per day compared with the knitted sack production equipment.

Description

The non-woven plastic braided bag unit

Technical field

The present invention relates to the manufacturing equipment of plastic packaging bag, particularly a kind of non-woven plastic braided bag unit.

Background technology

Existing Polywoven Bag is through extruder plasticizing back extruding sheet thick film with plastics, cut into monofilament after the cooling again and become plastic flat fiber by the wire drawing machine simple tension, on the braider of special use, be made into sheet again or on circular weaving machine, be made into plastics sheet stock cylindraceous or tubular material, stitch the end then or sheet material splicing seams is made Polywoven Bag.Produce this Polywoven Bag need make the embryonic tube device, in length and breadth to synchro-draw device, thermal finalization device and final capstan device, also need wire drawing machine, receive many equipment such as silk machine, circular weaving machine and be equipped with many operators and maintenance personal, and the plastic flat fiber of simple tension be woven into the bag or sheet stock, also undesirable on tensile strength, be difficult to guarantee the quality of packaging bag.

Summary of the invention

The objective of the invention is at above-mentioned defective, a kind of non-woven plastic braided bag unit is provided.

Technical scheme of the present invention is the non-woven plastic braided bag unit; comprise system embryonic tube device, in length and breadth to synchro-draw device, thermal finalization device and final capstan device; it is characterized in that in system embryonic tube device, being connected with the dynamic molding die head with extruder; this dynamic molding die head was made up of movable cooperation of external mold of doing to move both vertically up and down and internal mold; the inner cone periphery of external mold is provided with equally distributed some organizine runners, and correspondingly the gap between the inner cone periphery of the cone periphery of internal mold and external mold constitutes plastic passages.

The inner cone periphery of said external mold is consistent with the cone periphery angle of internal mold.

Advantage of the present invention is non-woven plastic braided bag and this comparison of existing Polywoven Bag that this unit is produced, in same size, under the also identical situation of weight, the ability to bear of non-woven plastic braided bag is than the strong 25-30% of existing Polywoven Bag, and the few 25-30% of the comparable existing Polywoven Bag of materials, thereby cost of material just can reduce; Because of not needing weaving machinery equipment, can save the replacing and the cost of repairs of many weaving machinery equipment consumable accessorys in addition; Be that unit of the present invention recruitment in operation only needs 4 people for one class more again, compare, save artificial about 50 every day with existing circular weaving machine production; Floor space is little, and overall cost reduces greatly.

Description of drawings

Fig. 1 is an overall structure schematic diagram of the present invention.

Fig. 2 is dynamic molding die head figure.

The specific embodiment

Further specify embodiment below in conjunction with accompanying drawing.

Referring to Fig. 1, complete machine comprises system embryonic tube device, in length and breadth to synchro-draw device, thermal finalization device; System embryonic tube device is made up of 1-extruder, 2-dynamic molding die head, 3-plastics embryonic tube, 10-cooling water tank; Collapser, 9-carry-over pinch rolls constitute down by 4-carry-over pinch rolls, 5-preheating zone heater, 6-drawing zone heater, 7-cooling vane group, the steady bubble of 8-to the synchro-draw device in length and breadth; The thermal finalization device by the steady bubble of 11-carry-over pinch rolls, 12-go up collapser, 13-heat set zone heater, 14-typing cooling vane group, collapser, 16-carry-over pinch rolls, 17-final capstan constitute the steady bubble of 15-down.

Among Fig. 2, dynamic molding die head 2 is made of 201-external mold, 202-plastic passages, 203-organizine runner, 204-internal mold.As shown, in system embryonic tube device, be connected with dynamic molding die head 2 with extruder,

external mold

201 and 204 movable cooperations of internal mold, external mold 201 moves both vertically up and down shown in arrow among the figure, the inner cone periphery of external mold 201 is provided with some organizine runners 203 uniformly, correspondingly the gap between the inner cone periphery of the cone periphery of internal mold 204 and external mold 201 constitutes plastic passages 202, see that from figure the inner cone periphery of external mold 201 is consistent with the angle of the cone periphery of internal mold 204.The plastics of molten condition can make the embryonic tube surface form the organizine of a rule when pushing through plastic passages 202 and organizine runner 203; Along with external mold 201 ceaselessly pumps, constantly change the gap of die orifice runner, make the embryonic tube outer surface form a lot of tram.Like this just form the shape of woven design shape through tram at the outer surface of embryonic tube, help improving the resistance to impact of non-woven plastic braided bag.

In Fig. 1, find out, plastics are extruded the embryonic tube 3 on woven design shape surface from the die orifice of dynamic molding die 2 down through extruder 1 operation, embryonic tube 3 obtains cooling under the effect of cooling water tank 10, under the traction of carry-over pinch rolls 4, enter preheating zone and drawing zone, under the high temperature action that the heater 5,6 in this two district produces and inject under the expansion of compressed gas of suitable pressure of embryonic tube 3 and produce cross directional stretch, simultaneously because the speed of service of carry-over pinch rolls 9 than the fast 5-8 of carry-over pinch rolls 4 speeds of service doubly, therefore produces longitudinal stretching.Non-woven plastic braided bag material after stretching leaves in length and breadth to the synchro-draw device under collapser 8 under cooling vane group 7, the steady bubble and carry-over pinch rolls 9 effects in length and breadth.In order to guarantee the stability of non-woven plastic braided bag material, must carry out thermal finalization handles, under the traction of carry-over pinch rolls 11, Bag Material enters heat set zone, under the restriction of surely steeping collapser 12,15 up and down, at high temperature that heater 13 produces with inject under an amount of Compressed Gas situation, finish thermal finalization under the situations with speed fully at carry-over pinch rolls 11,16, typing cooling vane group 14 in service will be carried out cooling work.Under the traction of carry-over pinch rolls 16, Bag Material breaks away from the thermal finalization device, by final capstan 17 rollings, can enter then and cuts the seam end and make non-woven plastic braided bag.

Claims

1, non-woven plastic braided bag unit; comprise system embryonic tube device, in length and breadth to synchro-draw device, thermal finalization device and final capstan device; it is characterized in that in system embryonic tube device, being connected with the dynamic molding die head with extruder; this dynamic molding die head was made up of movable cooperation of external mold of doing to move both vertically up and down and internal mold; the inner cone periphery of external mold is provided with equally distributed some organizine runners, and correspondingly the gap between the inner cone periphery of the cone periphery of internal mold and external mold constitutes plastic passages.

2,, it is characterized in that the inner cone periphery of said external mold is consistent with the cone periphery angle of internal mold according to the said non-woven plastic braided bag unit of claim 1.