US1587495A

US1587495A - Wrapping machine

Info

Publication number: US1587495A
Application number: US719194A
Authority: US
Inventors: Frank K Arnold
Original assignee: Individual
Current assignee: Individual
Priority date: 1924-06-10
Filing date: 1924-06-10
Publication date: 1926-06-08
Anticipated expiration: 1943-06-08

Description

June 8 1926.

F. K. ARNOLD WRAPPING MACHINE Filed June 10, 1924 Patented June 8, 1926.

UNITED STATES FRANK K. ARNOLD, OF KEENE, NEW HAMPSHIRE.

WRAPPING MACHINE.

Application filed June 10, 1924. Serial No. 719,194.

My invention relates to improvements in wrapping machines.

The object of my invention is to provide improvement upon my Patent No. 1,412,? 54 whereby the plunger for feeding the article to be wrapped such as bread or the like is moved slowly upwardly and very even- 1y so that the folders can operate more effectively upon the wrapper.

Another object of my invention is to provide means for moving the package supporting plunger upwardly in a vertical line ata slow even speed and to cause a quick return of the plunger whereby production is materially increased without effecting the operativeness of the folders.

A further object of my invention is to provide a simple, cheap and effective means for feeding the articles to the wrapping machine and having certain details of structure and combination of parts hereinafter more fully set forth.

In the accompanying drawings Figure 1 is a side elevation of my improved plunger for feeding the articles separately to the folders, the folders being shown in dotted lines and of a structure shown in my patent herebefore mentioned.

Figure 2 is an enlarged front view of the plunger showing the means for imparting a slow upward movement thereof and .a quick return.

Figure 3 is a side view of Figure 2.

Referring now to the drawings 1 repre sents the base which as shown is provided with a vertically disposed standard 2 in which are mounted the two sprocket wheel shafts 3 and 4. The shaft 4 of the sprocket Wheels 5 extends through the standard 2 and is provided with a pulley 6 over which passes a belt 7 driven and timed with the folding mechanism and whereby the sprocket wheel 5 is continuously rotated. While I have shown and described the lower sprocket as being driven the upper sprocket could be driven by a pulley. The shaft of the upper sprocket wheel 3 is mounted in an eccentric bearing 8 which is held in an adjusted position by means of the set screw 9 and whereby the distance between the two sprocket wheels may be varied for the purpose of tightening the chain.

Passing around the two sprocket wheels 5 is .a chain 10 which has a specially constructed link 11 having a wrist pin 12 upon which is mounted the pitman 13. The upper end of the pitman is mounted upon the wrist pin 14 carried by the rod 15 which carries at its upper end theplunger 16. The rod 15 may be supported by guides 17 carried by any part of the machine so that the rod 15 and the plunger 16 moves vertically. The rod 15 is positioned at one side of the center of the sprocket wheels 5 so that the rod is moving upwardly as indicated by the arrow Figure 2, when the chain is traveling in the direction of the arrow Figure 2. By

this structure it will be seen that the plunger commences to move upwardly slowly from the time the wrist pin 12 has passed a vertical line with the shaft 4 and moves slowly until the wrist pin again reaches a point opposite the upper sprocket below the rod 15. The first and last portion of this movement is slower than the intermediate portion of the movement. After the wrist pin 12 has reached a point below the rod 15 it travels rapidly downwardly from the points 18 to the point 19.

Arranged opposite the plunger 16 when at its lowest position is ahorizontal belt 20 carrying fingers 21 which convey the articles to be wrapped and deposit them upon the plunger. This belt 20 is so timed that when the plunger reaches its downward movement upon each stroke an article is fed to the plunger. Arranged above the plunger is a roll of paper 22 which extends across the path of travel of the plunger and is provided with a cutter 23 which serves the proper amount of paper from the roll and leaves it draped over the articles on the plunger as it moves upwardly. The continued upward movement of the plunger forces the article with the paper wrapper draped thereon between the folders 24 which folds the paper around the bottom of the article and around the ends all of which is fully shown and described in my patent herebefore referred to.

By the above description it will be seen that the continuous rotation of the sprocket chain causes the plunger to reciprocate up and down very evenly and upon its upward movement it travels slowly at the last part of its movement so that the folders and tuckers will have a chance to fold and tuck the wrapper around the bottom and ends of the article being wrapped. After this operation the wrist pin has reached the point 18 when it commences to travel down rapidly and thus cause a quick return of the plunger until the wrist pin has reached the point 19. The plunger practically stands still until the link carrying the wrist pin passes around the lowermost portion of the sprocket wheel 5 when the plunger is again started upwardly. true I have provided means for feeding the articles to be wrapped to the tuckers and wrappers so that they are more effectively wrapped and yet more slowly feeding the articles and at the same time allowing for a rapid return of the plunger which allows the machine to wrap a greater amount of articles more effectively in a predetermined length of time.

Having thus fully described my invention what I claim is:

1. A wrapping machine con'iprising folders adapted to act on the wrappers, a plunger feeding packages to the folders and means for causing a slow movement of the plunger just prior to reaching the folder and a quick return thereof.

2. A wrapping machine con'rprising folders adapted to act on the wrappers. a plunger feeding packages to the folders, and a chain for moving the plunger slowly just before the same reaches the folders and causing a quick return thereof.

3. A Wrapping machine comprising foldcrs adapted to act on the wrappers, a plungor feeding the packages to the folders, a chain below the plunger and having a pitman connection therewith and adapted to cause a slow movement of the plunger just prior to reaching the folders and to cause a quick return of the plunger.

4. A wrapping machine comprising fold- By this struc- I crs adapted to act on the Wrappers, a plunger feeding packages to the folders, and an endless chain arranged at one side of the plunger, and a pitman connecting the plungcr to the chain whereby the plunger moves slowly just prior to reaching the folders, and has a rapid return.

5. A wrapping machine comprising folders adapted to act on the wrappers, a wrapper feeding and cutting mechanism below the folders. a plunger below the -rapper feeding mechanism, and means for causing the slow movement of the plunger just prior to reaching the folders and causing a quick return of the plunger.

6. A wrapping machine comprising folders adapted to act on the Wrappers, a wrapier feeding and cutting mechanisnl )elow the folders, a plunger below the wrapper mcchanisn'i, and means for moving said plunger upwardly toward the folders under the wrappers and to decelerate the movement of the plunger just prior to reaching said plunger and to accelerate the return movement of the plunger.

7. A wrapping machine con'iprisiug folders adapted to act on the wrappers, a wrap per feeding and cutting mechanism below the folders, mechanism, an endless chain arranged at one side of the plunger, and a pitman connecting the plunger to the chain whereby the movement of the plunger is decelerated just prior to reaching the folders and accelerated on its return movement.

In testimony whereof, I afliX my signature.

FRANK K. ARNOLD.

a plunger below the wrapper