Puller apparatus with movable mounting arm

Patent metadata

Field	Value
Publication number	US-2020406324-A1
Application number	US-202016855711-A
Country	US
Kind code	A1
Filing date	Apr 22, 2020
Priority date	Jun 25, 2019
Publication date	Dec 31, 2020
Grant date	—

Abstract

A puller apparatus has a path through which an extrusion travels downstream from an outlet of an extruder and upper and lower extrusion puller members that define a portion of the path. At least one of the extrusion puller members is a drive member to provide forward motion to an extrusion. A mounting arm is moveably mounted to the puller apparatus at a mounting location. The mounting arm has a first portion on one side of the mounting location and a second portion on an opposed side of the mounting location. The upper extrusion puller member is mounted to the first portion of the mounting arm. The mounting arm is movable from a lowered position in which the upper extrusion puller member is positioned to engage an extrusion in the path and a raised position in which the upper extrusion puller member is spaced upwardly from the lowered position.

First claim

1 . A puller apparatus for pulling an extrusion profile as it emerges from an extruder, the puller apparatus comprising:
a) a path through which an extrusion travels downstream from an outlet of an extruder; b) an upper extrusion puller member and a lower extrusion puller member defining a portion of the path wherein at least one of the extrusion puller members is a drive extrusion puller member, the drive extrusion puller member providing forward motion to an extrusion travelling through the path; and, c) a mounting arm moveably mounted to the puller apparatus, the mounting arm having a mounting location at which location the mounting arm is moveably mounted to the puller apparatus, the mounting arm having a first portion on one side of the mounting location and a second portion on an opposed side of the mounting location, wherein the upper extrusion puller member is mounted to the first portion of the mounting arm, and wherein the mounting arm is moveable from a lowered position in which the upper extrusion puller member is positioned to engage an extrusion in the path and a raised position in which the upper extrusion puller member is spaced upwardly from the lowered position, wherein the first portion travels upwardly and forwardly as the first portion travels from the lowered position to the raised position, and wherein during operation the mounting arm is freely moveable between the lowered position and the raised position.

2 . The puller apparatus of claim 1 wherein during operation the mounting arm is moveable between the lowered position and the raised position merely by applying a downward force to the second portion of the mounting arm.

3 . The puller apparatus of claim 1 wherein the mounting arm is pivotally mounted to the puller apparatus.

4 . The puller apparatus of claim 1 further comprising a counterweight provided on the second portion of the mounting arm.

5 . The puller apparatus of claim 4 wherein a downward force provided by the counterweight is variable.

6 . The puller apparatus of claim 5 wherein the position of the counterweight on the second portion of the mounting arm is adjustable whereby the downward force provided by the counterweight is variable.

7 . The puller apparatus of claim 5 wherein an additional weight is positionable on the mounting arm whereby the downward force is variable.

8 . The puller apparatus of claim 5 wherein an alternate counterweight is positionable on the mounting arm whereby the downward force is variable.

9 . The puller apparatus of claim 1 wherein the second portion of the mounting arm provides a downward force.

10 . The puller apparatus of claim 9 wherein a counterweight provided on the second portion provides the downward force.

11 . The puller apparatus of claim 9 wherein the position of the mounting location is variable whereby the downward force is variable.

12 . The puller apparatus of claim 1 further comprising a biasing member biasing the mounting arm to the lowered position.

13 . The puller apparatus of claim 1 further comprising a stop member comprising a stop, whereby the stop determines the lowered position.

14 . The puller apparatus of claim 13 wherein the position of the stop is adjustable.

15 . The puller apparatus of claim 1 wherein the upper extrusion puller member is the drive extrusion puller member.

16 . The puller apparatus of claim 15 wherein a drive motor is mounted to an upper extrusion puller member assembly.

17 . The puller apparatus of claim 1 wherein the upper extrusion puller member comprises a roller.

Assignees

• Omachron Intellectual Property Inc

Inventors

• Conrad Wayne Ernest

Classifications

• B29C48/92

  Measuring, controlling or regulating · CPC title

• B29C48/252

  Drive or actuation means; Transmission means; Screw supporting means · CPC title

• B29C48/25 Primary

  Component parts, details or accessories; Auxiliary operations · CPC title

• B21C35/02 Primary

  Removing or drawing-off work · CPC title

• B29C48/355

  Conveyors for extruded articles · CPC title