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WO2019001598A1 - Device for inducing a composite motion - Google Patents

Device for inducing a composite motion Download PDF

Info

Publication number
WO2019001598A1
WO2019001598A1 PCT/CZ2018/000013 CZ2018000013W WO2019001598A1 WO 2019001598 A1 WO2019001598 A1 WO 2019001598A1 CZ 2018000013 W CZ2018000013 W CZ 2018000013W WO 2019001598 A1 WO2019001598 A1 WO 2019001598A1
Authority
WO
WIPO (PCT)
Prior art keywords
motion
inducing
helix
composite motion
composite
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.)
Ceased
Application number
PCT/CZ2018/000013
Other languages
French (fr)
Inventor
Roman MICHALOVSKÝ
Radek TOUL
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.)
ANITA B SRO
Original Assignee
ANITA B SRO
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
Application filed by ANITA B SRO filed Critical ANITA B SRO
Publication of WO2019001598A1 publication Critical patent/WO2019001598A1/en
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

Links

Classifications

    • D—TEXTILES; PAPER
    • D05—SEWING; EMBROIDERING; TUFTING
    • D05B—SEWING
    • D05B21/00—Sewing machines with devices for automatically controlling movement of work-carrier relative to stitch-forming mechanism in order to obtain particular configuration of seam, e.g. programme-controlled for sewing collars, for attaching pockets
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16H—GEARING
    • F16H25/00—Gearings comprising primarily only cams, cam-followers and screw-and-nut mechanisms
    • F16H25/08—Gearings comprising primarily only cams, cam-followers and screw-and-nut mechanisms for interconverting rotary motion and reciprocating motion
    • F16H25/12—Gearings comprising primarily only cams, cam-followers and screw-and-nut mechanisms for interconverting rotary motion and reciprocating motion with reciprocation along the axis of rotation, e.g. gearings with helical grooves and automatic reversal
    • F16H25/122—Gearings with helical grooves and automatic reversal
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16H—GEARING
    • F16H25/00—Gearings comprising primarily only cams, cam-followers and screw-and-nut mechanisms
    • F16H25/18—Gearings comprising primarily only cams, cam-followers and screw-and-nut mechanisms for conveying or interconverting oscillating or reciprocating motions
    • F16H25/20—Screw mechanisms
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16H—GEARING
    • F16H25/00—Gearings comprising primarily only cams, cam-followers and screw-and-nut mechanisms
    • F16H25/18—Gearings comprising primarily only cams, cam-followers and screw-and-nut mechanisms for conveying or interconverting oscillating or reciprocating motions
    • F16H25/20—Screw mechanisms
    • F16H2025/2062—Arrangements for driving the actuator
    • F16H2025/2096—Arrangements for driving the actuator using endless flexible members

Definitions

  • the technical solution relates to a device for inducing a composite motion.
  • the object of the technical solution is to simplify the construction and manufacture of the device for inducing a composite motion.
  • FIG. 1 is an axonometric view of the device for inducing ⁇
  • FIG. 2 is a view of the arrangement of the lead of the nuts of the motion screw in FIG. 1.
  • the nuts 4, 5 are, for example or otherwise suitably, anchored via bearing flanges 10, li to a machine not shown and driven across guiding surfaces_8, 9 by means of belt pulleys not shown using a drive motor.
  • the construction of the nuts 4, 5 is knowri and therefore it is not described in more detail.

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Textile Engineering (AREA)
  • Transmission Devices (AREA)
  • Sewing Machines And Sewing (AREA)

Abstract

Device for inducing a composite motion comprises a motion screw (1) provided on the same portion with a pair of opposing helices (2, 3), of which one helix (2) is designed to guide one nut (4) and the other helix (3) to guide the other nut (5).

Description

Device for inducing a composite
Field of invention
The technical solution relates to a device for inducing a composite motion. Background art
In mechanical engineering, in some cases composite motion in the direction of the x- and y-axes is required. Examples are programmable automatic flat or shoulder sewing machines. Their drive, i.e. in the direction of the x and y axes, is accomplished with a device comprising a motion screw provided with a thread and a longitudinal groove. The motion screw is provided with two nuts and ball bearings, one of which nuts is in engagement with the longitudinal groove and the second nut with the helix of the motion screw. Both nuts are driven by electric motors by means of belts and belt pulleys to induce the resultant motion by means of beads, as is in more detail described, for example, in the utility model No. CZ 27230. Another exemplary embodiment used in mechanical engineering is disclosed, for example, in US 8418573 or JP 2007155037.
Disclosure of the technical solution
The object of the technical solution is to simplify the construction and manufacture of the device for inducing a composite motion.
This is achieved to a considerable extent by a device for inducing a composite motion according to the technical solution, the essence of which consists, in particular, in that it comprises a motion screw provided on the same portion with a pair of opposing helices, of which: one helix is designed to guide one nut and the other helix to guide the other nut.
In terms of use it is advantageous for the helices to have the same lead.
If desired, it is advantageous to use different helix leads to achieve a composite motion of the motion screw, i.e., rotational motion and sliding motion.
Clarification of drawings
The technical solution will now be described with reference to the drawings, in which FIG. 1 is an axonometric view of the device for inducing ί
motion screw with a pair of axially disposed driven nuts and FIG. 2 is a view of the arrangement of the lead of the nuts of the motion screw in FIG. 1.
Examples of implementing a technical solution
The device for inducing a composite motion according to FIG. 1 comprises a motion screw 1 which is provided on the same portion with a pair of helixes 2, 3 whose arrangement is shown in FIG. 2. One helix 2 has a right lead of the thread 6 and the second helix 3 has a left lead of the thread 7. The nuts 4, 5 are mounted on the motion screw i so that one nut 4 is mounted to and engages into the helix 2 with a right lead of the thread 6 and the second nut 5 is mounted to and engages into the helix 3 with a left lead of the thread 7. The lead of thread 6, 7 may be the same, but if necessary, the leads of the threads may be different.
The nuts 4, 5 are, for example or otherwise suitably, anchored via bearing flanges 10, li to a machine not shown and driven across guiding surfaces_8, 9 by means of belt pulleys not shown using a drive motor. The construction of the nuts 4, 5 is knowri and therefore it is not described in more detail.
The function of the device for inducing a composite motion is such that by rotating both nuts 4, 5 consistently, i.e. together in the same sense, the motion screw 1 performs only a rotary motion. By turning both nuts 4, 5 at the same rotational speed but each in the opposite sense, assurning the same lead of threads 6, 7 of the helix 2, 3 , the motion screw 1 moves only slidingly.
By combining the speed and the sense of rotation of the nuts 4, 5, regardless of the lead of the threads 6, 7 of the screws 2, 3, a composite motion of the motion screw 1 is achieved, i.e. both rotational motion and sliding motion at the same time.
Industrial applicability
The technical solution is intended especially for programmable automatic sewing machines with x- and y-axis flat sewing, as well as for spatial sewing with a combination of rotational motion around the y-axis and sliding in the y-axis. It can also be used in robotics, where its compactness will simplify technical solutions and in other fields of industry.

Claims

Patent claims
1. Device for inducing a composite motion, characterized in that it comprises a motion screw
(1) provided on the same portion with a pair of opposing helices (2, 3), of which one helix
(2) is designed to guide one nut (4) and the other helix (3) to guide the other nut (5).
2. Device for inducing a composite motion according to claim 1, characterized in that the helices (2, 3) have the same leads of the thread (6, 7).
3. Device for inducing a composite motion according to claim 1, characterized in that the helices (2, 3) have different leads of the thread (6, 7).
PCT/CZ2018/000013 2017-06-30 2018-04-03 Device for inducing a composite motion Ceased WO2019001598A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CZPUV2017-33871 2017-06-30
CZ2017-33871U CZ30943U1 (en) 2017-06-30 2017-06-30 A device for deriving composite motion

Publications (1)

Publication Number Publication Date
WO2019001598A1 true WO2019001598A1 (en) 2019-01-03

Family

ID=59772297

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/CZ2018/000013 Ceased WO2019001598A1 (en) 2017-06-30 2018-04-03 Device for inducing a composite motion

Country Status (2)

Country Link
CZ (1) CZ30943U1 (en)
WO (1) WO2019001598A1 (en)

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB191120408A (en) * 1911-09-14 1912-02-01 Alfred Herbert Improvements in or relating to Reversible Traversing Motions and the like.
US5540113A (en) * 1993-09-20 1996-07-30 Nippon Thompson Co., Ltd. Drive apparatus equipped with a ball screw
US20040116229A1 (en) * 2001-02-20 2004-06-17 Luk Lamellen Und Kupplungsbau Actuator for a motor vehicle transmission

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB191120408A (en) * 1911-09-14 1912-02-01 Alfred Herbert Improvements in or relating to Reversible Traversing Motions and the like.
US5540113A (en) * 1993-09-20 1996-07-30 Nippon Thompson Co., Ltd. Drive apparatus equipped with a ball screw
US20040116229A1 (en) * 2001-02-20 2004-06-17 Luk Lamellen Und Kupplungsbau Actuator for a motor vehicle transmission

Also Published As

Publication number Publication date
CZ30943U1 (en) 2017-08-21

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