US1871865A - Machine for manufacturing tubes - Google Patents

Description

Aug. 16, 1932.. c. TAYLOR 1,871,865

MACHINE FOR MANUFACTURING TUBES Filed March 27, 1929 b Sheets-Sheet l A g- 1932- c. TAYLOR MACHINE FOR MANUFACTURING TUBES 3 Sheets-Sheet 2 Filed March 27, 1929 Aug. 16, 1932. c. TAYLOR 1,871,865

MACHINE FOR MANUFACTURING TUBES Filed March 27. 1929 s Sheets-Sheet 5 Patented Aug. 16, 1932 UNITED STATES PATENT OFFICE Application filed March 27, 1929. Serial 170. 850,394.

The object of this invention is to provide an improved apparatus for making tubes of paper or like material. It is well known that tubes have hitherto been made by continuously winding the material in a spiral form onto a mandrel, but according to the present invention it is proposed to wind such tubes convolutely instead of spirally, and the method is such that the finished article may be of cylindrical, square or other section, while the operation is practically continuous, that is to say there is scarcely any interruption in the feed of the material from a reel to the mechanism employed.

In the accompanying drawings :-Fig. 1 is a diagrammatic view of part of a machine for the manufacture of tubes, and Fig. 2 a view of the part of such machine to which the web of material passes from that part shown in Fig. 1. Fig. 3 is a vertical section of part of Fig. 2.

The main object of the present invention is to enable tubes to be made continuously from a roll of paper, in such a manner that the flow of material from such roll is continuous until all of such material has been utilized. For this purpose the mechanism shown diagrammatically in Figs. 1 and 2 is employed,

and it will be seen therefrom that the web of material A passes from the roll 7 to a pasting apparatus consisting of a pasting roller 8, revolving in contact with another roller 9 which dips into the paste or other adhesive contained in the paste reservoir or fountain 10, a squeegee roller 11 being preferably provided by which the amount of adhesive supplied by roller 9 to the actual pasting roller 8 can be regulated by means of screw 12. A roller 8 is preferably provided in such relation to the pasting roller 8 as to keep the web of material in proper contact therewith. From this pasting mechanism the web of material A passes to one of a series of mandrels 16 carried by a disc or holder 17 which is intermittently rotated by means of a suitable spacing mechanism. Such mandrels also have a continuous rotary movement imparted to them in their bearings in disc 17, being for this purpose formed with gear teeth engaging with the internal teeth of a gear wheel 19 operated by driving pinion 20 on shaft 21, such gear wheel 19 also having external teeth with which such pinion 20 engages.

Each of the mandrels 16 has formed in it a series of holes 22, these being placed in approximately the position in which the leadmg end of the web of material A makes contact with the mandrel. Suitable means are provided for creating a vacuum in the mandrel so that the web will be acted on thereby and so held in contact with such mandrel. The arrangement is such that after the web has thus been gripped by the mandrel the latter will make about one and a half turns, wrapping the material around it to this extent, and then the spacing mechanism hereinbefore referred to comes into action and this particular mandrel is thereby carried from position B to position C. At about this time a mechanism for breaking or severing the web between positions B and C, and consisting of an arm 23 operated by any suitable means, breaks or severs such web at a point that will leave suflicient to complete the winding of the tube on the first mandrel. The outer extremity of the breaker arm 23 is preferably of such shape as to force and hold the severed end of the web in contact with the next mandrel 16 which has now arrived at position B, thus giving full opportunity for the vacuum in this mandrel to act on such severed end of the web while it in turn is being wound thereon. In the drawings it will be seen that a roller 24 is shown between which and the mandrel in position B the web of material A is passed. Such roller 24 may be acted on by a spring or springs and has for its object to prevent the web from being drawn forward or being re tarded, and it thus co-operates with the mandrel 16 at the time in position C to place sufficient tension on the web to enable the breaker arm 23 to sever the latter. This arrangement permits the object hereinbefore referred to, viz.the continuous manufacture of this class of convolutely wound tubes, to be attained, as there is a slightly intermittent continuous feed of the material from the reel until all of such material has been utilized.

In the intermittent movement imparted to holder 17 the mandrel 16 with the material rolled thereon will be brought to the positions D and E, where suitab e rollers or other means may be situated which by contacting with the rolled tube will prevent the free end of the material from rising from the inner ply. The next movement of the holder 17 brings the mandrel 16 with the nowfinished tube to the osition F, where a delivery mechanism wi act on such tube to eject it from the mandrel. After the tube has thus been removed the intermittent movement of holder 17 brings the particular mandrel the operation of which has been followed back to the position G, and then to position B where another blank will be ap,- plied thereto and the operation continued. The intermittent movement described may be imparted to the holder 17 in any suitable manner, the means shown in the drawings consisting in a series of slots formed in such holder and with each of which in turn engages a roller 26 carried on a continuously rotating disc 27, receivin its motion by suitable gearing 28, 29 from the main shaft. The disc 27 also carries a cam 30 which operates a locking arm 31 having a tooth 32 adapted when the holder 17 is stationary to enter one of a series of notches 33 in such holder for the purpose of preventing the latter irom shifting while the various operations are being performed.

As above described the tubes would consist of two layers or plies of material, but it will be readily understood that by suitably modifying the relation of the spacing mechanism to the driving mechanism for the mandrels, tubes of three or more layers or plies of material can be produced b the method described. It will also be readi y understood that although the invention has been described and illustrated in connection with the 'ters Patent is In a tube making machine, a central carrier disc mounted for rotation and having spaced radial slots, a gear revoluble with the carrier discand having external and internal gear teeth, a pluralit of mandrels carried by the carrier disc an each mounted for rotation and having ear teeth engaging the internal teeth 0 the first named gear, a locking member for the carrier disc, a revoluble gear having a cam to actuate the said locking member and also having a pin to enter the slots of the carrier disc in succession and thereby cause step by step rotation of the carrier disc and a train of gears between the said car which has the cam and the pin, one of t e gears of said tram engaging the said gear which nas the cam and the pin and another gear 01' said train engaging the external teeth of the first named gear. 1

In witness whereof I have signed this specification, March 20th, 1929.

CYRUS TAYLOR.

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