Intermittent process for manufacture of a multiple filter rod having spaced pockets containing particulate material
阅读：123发布：2023-03-31
专利汇可以提供Intermittent process for manufacture of a multiple filter rod having spaced pockets containing particulate material专利检索，专利查询，专利分析的服务。并且A filter rod making machine is modified to include a dispensing device for granular or particulate material which is fed through spaced apertures to a substantially U-shaped web of selected filter material. The linear movement of the filter material is momentarily stopped to facilitate the reception of the granules. Towards this end, metered amounts of the gravity fed granules are delivered to the spaced apertures by a reciprocal dispensing plate actuated during the dwell period that the web is stationary. Thereafter the U-shaped filter material with spaced charges of granules are shifted longitudinally away from the granule application station in order that a corresponding length of the filter rod may receive spaced charges of the granules. This intermittent motion of the web through the granule application station is repeated. While the tow is moved with intermittent motion through the application station, it is continuously fed from a tow opening unit through a plasticizer applicator and over a feed drum.，下面是Intermittent process for manufacture of a multiple filter rod having spaced pockets containing particulate material专利的具体信息内容。
1. A method of manufacturing a tobacco smoke filter comprising the steps of: a. providing a web of selected filter material, said web having an elongated axis And being continuous in the direction of the axis; b. continuously feeding the web in the direction of the axis; c. stopping the travel of a predetermined length of the web for a predetermined time interval; d. introducing a selected additive to the predetermined length of the web during the predetermined time period; and e. resuming the travel of the predetermined length of the web for a predetermined period and then stopping its travel again for additive introduction.
2. The method of claim 1, wherein the continuously fed web is flattened and thereafter formed into a substantially U-shaped configuration prior to introduction of the additive.
3. The method of claim 1, wherein the additive is introduced at spaced intervals in the direction of the axis of the web.
4. The method of claim 1, wherein after the introduction of the additive the web is gathered into a rod of substantially cylindrical configuration.
5. The method of claim 4, wherein a wrapper is fed intermittently in synchronization with the movement of the web axis as applied about the cylindrical rod.
6. The method of claim 5, wherein the wrapped rod is transversely cut in synchronization with movement of the web and wrapper into lengths each having at least one intermediate zone with the selected additive.
7. A method of manufacturing multiple tobacco smoke filters comprising the steps of: a. providing a web of filter material, said web having an elongated axis and being continuous in the direction of said axis; b. continuously feeding the web in the direction of said axis; c. flattening said web into a predetermined width; d. forming the flattened web into a substantially U-shaped configuration; e. stopping the travel of the U-shaped web for a predetermined time interval; f. providing a supply of particulate material; g. receiving a metered amount of the particulate material from its source of supply and at spaced intervals; h. delivering the spaced metered amounts of particulate material to the web immediately after it is formed in its U-shaped configuration; i. depositing the spaced metered amounts of the delivered particulate material into the interior of the web while stationary and at the base of the U and between the legs of the U whereby metered amounts of the particulate material will be located on the web at predetermined spaced intervals; j. resuming the travel of the U-shaped web having the spaced metered amounts of particulate material thereon; and k. immediately closing the legs of the web about the spaced metered amount of particulate material substantially immediately after the particulate material is deposited and forming it into a cylindrical rod.
8. The invention in accordance with claim 7, wherein a wrapper is applied about the cylindrical rod.
9. The invention in accordance with claim 8, wherein the wrapper rod is transversely cut into lengths each having at least one intermediate portion containing a pocket with the particulate material within the web of selective filter material.
10. The invention in accordance with claim 9 wherein the feed of the tow with spaced particulate material is synchronized with the feed of the wrapper and the cutting of the rod.
11. The invention in accordance with claim 7 wherein the supply of particulate material is a hopper, gravity feeding the particulate material from hopper, delivering metered amounts of the particulate material from the hopper to spaced dispensing apertures at a location above the web when the tow is stationary to enable the metered amounts of particulate material to be dispensed onto the stationary web at the predetermined spaced intervals.
12. The invention in accordance with claim 11 wherein suction is applied to the stationary tow as the metered amounts of particulate material are dispensed thereon to expedite the dispensing operation and restrict movement of the particulate material on the web.
13. Apparatus for manufacturing multiple tobacco smoke filters comprising: a. filter material supply means for supplying a web of filter material, said web having an elongated axis and being continuous in the direction of the axis; b. feed means for continuously feeding the web in the direction of the axis; c. dwell means for stopping the travel of a predetermined length of the web for a predetermined period of time; d. additive introduction means for introducing a selected additive over the predetermined length of web in the web during the predetermined period of time; and e. means for resuming the travel of the predetermined length of web after the additive was introduced to expose the next succeeding such length of web to the additive introduction means.
14. The invention in accordance with claim 13, wherein a dancer roll means is interposed between the feed means and additive introduction means to accommodate the web being continuously fed during the dwell periods.
15. The invention in accordance with claim 14, wherein a trumpet means is interposed between the dancer roll means and the additive introduction means to form the web into substantially U-shaped configuration.
16. The invention in accordance with claim 13, wherein the additive introduction means includes a hopper means for supplying a particulate material to spaced dispensing apertures arranged along axis of web, a reciprocal dispensing plate with cavities for holding metered amounts of the particulate material, the plate reciprocating from a first position placing cavities under hopper means to receive the particulate material and a second position during the dwell period with the cavities over and aligned with the apertures whereupon the metered amounts of particulate material are deposited on the web at spaced intervals.
17. The invention in accordance with claim 16, wherein suction means beneath the apertures and web expedite the deposit of particulate material from the aperture onto the web.
18. The invention in accordance with claim 13, wherein garniture means immediately adjacent the additive introduction means gathers the web and forms it into a rod.
19. The invention in accordance with claim 18, wherein a wrapper is fed intermittently and in synchronization with the web and the garniture means cooperates in enclosing the rod in a wrapper.
20. The invention in accordance with claim 19, wherein a cutting means synchronized with the movement of the web the movement of the web and wrapper cuts the wrapped rod into lengths each having at least an intermediate zone of the additive.
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