US1706728A - Pencil-making machine - Google Patents

Pencil-making machine Download PDF

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Publication number
US1706728A
US1706728A US148153A US14815326A US1706728A US 1706728 A US1706728 A US 1706728A US 148153 A US148153 A US 148153A US 14815326 A US14815326 A US 14815326A US 1706728 A US1706728 A US 1706728A
Authority
US
United States
Prior art keywords
nozzles
mass
nozzle
pencil
lead
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
US148153A
Other languages
English (en)
Inventor
Charles E Daniels
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
AMERICAN CRAYON CO
Original Assignee
AMERICAN CRAYON CO
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority to BE346738D priority Critical patent/BE346738A/xx
Priority to NL23143D priority patent/NL23143C/xx
Application filed by AMERICAN CRAYON CO filed Critical AMERICAN CRAYON CO
Priority to US148153A priority patent/US1706728A/en
Priority to FR702869D priority patent/FR702869A/fr
Priority to GB30552/27A priority patent/GB280596A/en
Priority to DEA52471D priority patent/DE496016C/de
Application granted granted Critical
Publication of US1706728A publication Critical patent/US1706728A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B43—WRITING OR DRAWING IMPLEMENTS; BUREAU ACCESSORIES
    • B43K—IMPLEMENTS FOR WRITING OR DRAWING
    • B43K19/00—Non-propelling pencils; Styles; Crayons; Chalks
    • B43K19/16—Making non-propelling pencils
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/03—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor characterised by the shape of the extruded material at extrusion
    • B29C48/06—Rod-shaped
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/25—Component parts, details or accessories; Auxiliary operations
    • B29C48/30—Extrusion nozzles or dies
    • B29C48/32—Extrusion nozzles or dies with annular openings, e.g. for forming tubular articles
    • B29C48/335—Multiple annular extrusion nozzles in coaxial arrangement, e.g. for making multi-layered tubular articles
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/25—Component parts, details or accessories; Auxiliary operations
    • B29C48/30—Extrusion nozzles or dies
    • B29C48/345—Extrusion nozzles comprising two or more adjacently arranged ports, for simultaneously extruding multiple strands, e.g. for pelletising

Definitions

  • This invention relates to pencil makingl machines, and has for its primary object to provide an apparatus of relatively simple construction for simultaneously making aplurality of pencils.
  • Figure 1 is a vertical sectional view through the machine illustarting one practical embodiment of my presentimprove#
  • Fig. 2 is a fragmentary horizontal'section taken substantially on the line 2-2 of Fig. 1
  • Fig. 3 is detail horizontal section taken on the line 3 3 of Fig. 1;
  • Figs. 4; and 5 are similar detail sectional views taken on the lines and 5-5 respectively, of Fig. 1, and
  • Fig. 6 is a det-ail view partly in sect-ion of the lead feeding device.
  • the machine includes a base having a pulp receiving chamber 5 of suitable capacity which is fed from a reservoir 6 communicating with said chamber at one side thereof.
  • a plurality of outlets 7 lead from the top of this chamber to an annular series of vertically disposed tapering shaping nozzles 8 through which the lmaterialfis forced under pressure from chamber 5 by ⁇ the rotatively mounted worm 9 arranged in said chamber and driven by suitable gearing or other equivalent means indicated at 10.
  • a h orlzontally positioned bed plate 11 is arranged above and in spaced relation to the base of the machine and preferably connected therewith by a number of standards having any opening 16 therethrough.
  • An additional roller 18 is also suitably mounted in the opening 16 in opposed spaced relation to the central roller 17,
  • Spaced vertically extending guide rods 19 i are positioned through the openings 16 lof .the armsl and suitably fixed at their lower ends to the lowermost arms 15 and at their upper ends to a plate 20 securedto the upper end of the cylinder 13.
  • a lead feeding member is arranged for verticalv sliding movement.
  • this member consists of a cylindrical shank 21 having divergently extending arms 22 each provided with an upwardly projecting sleeve 23 loosely engaged yupon one of the rods 19.
  • the lower end of the shank 21 is provided with vsuitable means for gripping one end ofthe lead or crayon.
  • this lead receiving and gripping means may consist of a sleeve 24 threaded upon the reduced lower end of the shank 21 and having arranged therein a plurality of resilient gripping dogs or springs 25 fixed to the wall of said sleeve at one of their ends. The other free.
  • the shank 21 is preferably provided with a longitudinally extending part 27 also of the same cross sectional form as the pencil which is adapted to pass between and engage with the several guide rollers 17 and 18.
  • each nozzle 8 a tube 28 is axially positioned, said tube at its lower end being suitably braced from the wall of the nozzle and also connected with said nozzle wall at a point in spaced relation to the upper end of the latter by means of the webs indicated at 29.
  • the tube 28 at its upper end terminates below the upper open end of the nozzle 8.
  • this nozzle is of internal hexagonal cross sectional shape, but of course if desired, may be of other forms.
  • the upper end of each nozzle projects within the chamber of an electrical heating device 30 of tubular form.
  • a plurality of vertically disposed shaping nozzles means for feeding a plastic pulp mass under pressure upwardly through said nozzles, and means actuated by the mass extruded from the outlet ends of the nozzles for simultaneously and progressively feeding a lead core embedded in the plastic mass through the mouth of each shaping nozzle.
  • a plurality of vertically disposed shaping nozzles means for feeding a plastic pulp mass under pressure upwardly through said nozzles, means actuated by the mass extruded from the outlet ends of the nozzles for simultaneously and progressively feeding a lead core embedded in the plastic mass through the mouth of each shapingeribzzle, and means for heating the molded plastic mass as it leaves the nozzle mouth to evaporate the moisture content thereof.
  • a plurality of vertically disposed shaping nozzles means for feeding a plastic pulp mass under pressure upwardly through said nozzles, means actuated by the mass extruded from the outlet ends of the nozzles for simultaneously and progressively feeding a lead core embedded in. the plastic mass through the mouth of each shaping nozzle, means for heating the molded plastic mass as it leaves the nozzle mouth to evaporate the moisture content thereof, and guiding means for the lead feeding device and the body of the pencil arranged above said heating means.
  • a plurality of vertically disposed shaping nozzles means for feeding a plastic pulp mass under pressure upwardly through said nozzles, means actuated by the mass extruded from the outlet ends of the nozzles for simultaneously and progressively feeding a lead core embedded in the plastic mass through the mouth of each shaping nozzle, means for heating the molded plastic mass as it leaves the nozzle mouth to evaporate the moisture content thereof, said lead feeding means including a member having means to grip the end of the lead at one of its ends and provided with spaced sleeves at its other end, rigid guide rods upon which said sleeves are loosely engaged, and Vertically spaced sets of guide rollers between which the pencil body is received and guided in its upward movement.
  • a plurality of shaping nozzles means to feed a plastic pulp mass under pressure through said nozzles, means actuated by the mass extruded from the outlet ends of the nozzles v for progressively feeding a core through the mouth ot each nozzle, and means embracing the outlet ends of the nozzles to evaporate the moisture from the mass as it lemerges from the out-let ends of the nozzles.
  • a plurality of shaping nozzles means to feed a plastic pulp mass under pressure through said nozzles, means actuated by the mass extruded from the outlet ends of the nozzles for progressively feeding a lcore through the mouth of each nozzle, and a heating element embracing the outlet end of each nozzle to heat the mass as it emerges from the nozzles to evaporate its moisture content.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Manufacturing & Machinery (AREA)
  • Mechanical Pencils And Projecting And Retracting Systems Therefor, And Multi-System Writing Instruments (AREA)
  • Inks, Pencil-Leads, Or Crayons (AREA)
  • Extrusion Moulding Of Plastics Or The Like (AREA)
US148153A 1926-11-13 1926-11-13 Pencil-making machine Expired - Lifetime US1706728A (en)

Priority Applications (6)

Application Number Priority Date Filing Date Title
BE346738D BE346738A (enrdf_load_stackoverflow) 1926-11-13
NL23143D NL23143C (enrdf_load_stackoverflow) 1926-11-13
US148153A US1706728A (en) 1926-11-13 1926-11-13 Pencil-making machine
FR702869D FR702869A (fr) 1926-11-13 1927-11-12 Perfectionnements aux machines pour la fabrication des crayons
GB30552/27A GB280596A (en) 1926-11-13 1927-11-14 Improvements in or relating to machines for making pencils
DEA52471D DE496016C (de) 1926-11-13 1927-11-15 Maschine zur Herstellung von Bleistiften

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US148153A US1706728A (en) 1926-11-13 1926-11-13 Pencil-making machine

Publications (1)

Publication Number Publication Date
US1706728A true US1706728A (en) 1929-03-26

Family

ID=22524526

Family Applications (1)

Application Number Title Priority Date Filing Date
US148153A Expired - Lifetime US1706728A (en) 1926-11-13 1926-11-13 Pencil-making machine

Country Status (6)

Country Link
US (1) US1706728A (enrdf_load_stackoverflow)
BE (1) BE346738A (enrdf_load_stackoverflow)
DE (1) DE496016C (enrdf_load_stackoverflow)
FR (1) FR702869A (enrdf_load_stackoverflow)
GB (1) GB280596A (enrdf_load_stackoverflow)
NL (1) NL23143C (enrdf_load_stackoverflow)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2446057A (en) * 1944-04-25 1948-07-27 Davis Marinsky Plastic casting machine
US2456304A (en) * 1944-04-25 1948-12-14 Louis H Morin Method of forming coaxial cables
US2848739A (en) * 1955-09-30 1958-08-26 Western Electric Co Methods of and apparatus for making cellular plastic products
CN103978809A (zh) * 2014-05-30 2014-08-13 常熟市祖博机械有限公司 一种滚筒胶芯机
CN108824052A (zh) * 2018-06-28 2018-11-16 西南交通大学 一种碎纸处理合成纸质环保铅笔一体机

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1561767B1 (de) * 1967-10-04 1972-07-06 Bayer Ag Schreibstift
WO1991011335A1 (de) * 1990-02-04 1991-08-08 J.S. Staedtler Gmbh & Co. Schreib- oder malstift und verfahren zu dessen herstellung
DE4003289C2 (de) * 1990-02-04 2000-02-03 Staedtler Fa J S Schreib- oder Malstift mit einem Schaft aus einer Umhüllung aus blatt- oder folienförmigem Material und Verfahren zu dessen Herstellung
CN106113998B (zh) * 2016-08-22 2017-06-16 浙江彭胜文教用品股份有限公司 一种加热挤出式的铅笔成型方法
CN108773232A (zh) * 2018-06-05 2018-11-09 安徽得亿文教用品有限公司 一种塑料铅笔铅芯挤出成型模具

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2446057A (en) * 1944-04-25 1948-07-27 Davis Marinsky Plastic casting machine
US2456304A (en) * 1944-04-25 1948-12-14 Louis H Morin Method of forming coaxial cables
US2848739A (en) * 1955-09-30 1958-08-26 Western Electric Co Methods of and apparatus for making cellular plastic products
CN103978809A (zh) * 2014-05-30 2014-08-13 常熟市祖博机械有限公司 一种滚筒胶芯机
CN103978809B (zh) * 2014-05-30 2016-03-16 苏州凯丰电子电器有限公司 一种滚筒胶芯机
CN108824052A (zh) * 2018-06-28 2018-11-16 西南交通大学 一种碎纸处理合成纸质环保铅笔一体机
CN108824052B (zh) * 2018-06-28 2023-09-26 西南交通大学 一种碎纸处理合成纸质环保铅笔一体机

Also Published As

Publication number Publication date
GB280596A (en) 1928-06-21
FR702869A (fr) 1931-04-18
DE496016C (de) 1930-04-12
BE346738A (enrdf_load_stackoverflow) 1900-01-01
NL23143C (enrdf_load_stackoverflow) 1900-01-01

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