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CN-121987007-A - Sole contour scanning system based on point laser sensor

CN121987007ACN 121987007 ACN121987007 ACN 121987007ACN-121987007-A

Abstract

The invention provides a sole profile scanning system based on a point laser sensor, which relates to the technical field of shoemaking and comprises a conveying mechanism, the point laser sensor and a control unit, wherein the control unit is used for collecting and judging real-time height difference data based on the point laser sensor at an initial position, controlling the point laser sensor to reciprocate along a second direction when judging that the height difference data is larger than a first set value, conducting reverse motion after continuing to move for a set moving distance when judging that the height difference is larger than a second set value in the reciprocating motion process of the point laser sensor, returning the point laser to the initial position after detecting that the height difference data is kept stable, judging the height difference data, screening effective data and outputting the effective data. High-efficiency scanning and data processing are realized, motion blur is effectively reduced, effective data are screened, and detection precision and stability are improved.

Inventors

  • WANG FUZENG
  • LIN LINGZHI
  • Fan Erbin
  • JIANG FENG

Assignees

  • 华侨大学

Dates

Publication Date
20260508
Application Date
20260410

Claims (9)

  1. 1. A sole profile scanning system based on point laser sensors, comprising a conveying mechanism for conveying a sole model (2) in a first direction in a predetermined posture, characterized in that it further comprises a point laser sensor (4) and a control unit for executing the following steps: Collecting and judging real-time height difference data based on a point laser sensor (4) at an initial position, wherein the initial position is a central position along the width of the sole model (2) in the conveying direction; When the height difference data is judged to be larger than a first set value, the point laser sensor (4) is controlled to reciprocate along a second direction perpendicular to the first direction; In the process of reciprocating movement of the point laser sensor (4), when the height difference is judged to be larger than a second set value, the point laser sensor (4) continues to move for a set movement distance and then moves reversely; After detecting that the height difference data remains stable, the point laser sensor (4) returns to the initial position; And judging the height difference data, screening effective data, and finally outputting data conforming to the outline of the sole.
  2. 2. The spot laser sensor based sole profile scanning system according to claim 1, characterized in that it comprises two spot laser sensors (4), said control unit controlling the two spot laser sensors (4) to move along respective scanning paths for zone scanning of the profile areas on both sides of the sole.
  3. 3. The sole profile scanning system based on the point laser sensor according to claim 2, further comprising two linear motion modules (3) electrically connected with the control unit, wherein the two linear motion modules (3) respectively control one point laser sensor (4) to reciprocate.
  4. 4. The spot laser sensor based sole profile scanning system of claim 1, wherein the effective data is maximum height data obtained by scanning the sole profile and height difference data having a deviation value from the maximum height data not exceeding a preset threshold.
  5. 5. The sole profile scanning system based on the point laser sensor according to claim 1, further comprising a guide centering mechanism (1) arranged on a conveying path of the conveying mechanism for guiding, centering and correcting the posture of the sole model (2).
  6. 6. The spot laser sensor based sole profile scanning system according to claim 5, characterized in that the guide alignment mechanism (1) comprises two guide plates arranged in a horn-like shape.
  7. 7. Sole profile scanning system based on spot laser sensors according to claim 1, characterized in that the laser emission direction of the spot laser sensor (4) is directed towards the conveying plane of the conveying mechanism.
  8. 8. The spot laser sensor based sole profile scanning system of claim 1, wherein the control unit is an Arduino based PCB control unit.
  9. 9. The spot laser sensor based sole profile scanning system according to claim 1, characterized in that the first set point and the second set point are smaller or equal than a minimum height difference between the sole model (2) and the conveyor surface.

Description

Sole contour scanning system based on point laser sensor Technical Field The invention relates to the technical field of shoemaking, in particular to a sole contour scanning system based on a point laser sensor. Background On the production line of shoemaking trade, carry out quick, accurate on-line measuring to sole outline size, be the key link of guarantee product quality. At present, the common automatic detection scheme in the field mostly adopts a 3D line laser scanning technology, and can realize surface scanning in a larger range, but has the obvious defects that firstly, the 3D line laser sensor and a matched calculation unit thereof are high in price, so that the whole equipment cost is high, and particularly, the input burden is heavy for small and medium-scale production enterprises, and secondly, the line laser scheme is easy to generate motion blur in a high-speed moving conveyor belt environment, has high data processing capacity, has extremely high requirements on the real-time performance of a PC system, and can introduce uncertain factors in the aspects of precision and stability. Disclosure of Invention Accordingly, an object of the present invention is to provide a method and apparatus for scanning a sole profile based on a spot laser sensor, so as to solve the above-mentioned problems. The invention adopts the following scheme: The application provides a sole profile scanning system based on a point laser sensor, which comprises a conveying mechanism, a point laser sensor and a control unit, wherein the conveying mechanism is used for conveying a sole model along a first direction in a preset posture, and the control unit is used for executing the following steps: Collecting and judging real-time height difference data based on a point laser sensor at an initial position, wherein the initial position is a central position along the width of the sole model in the conveying direction; When the height difference data is judged to be larger than a first set value, controlling the point laser sensor to reciprocate along a second direction perpendicular to the first direction; In the process of reciprocating movement of the point laser sensor, when the height difference is judged to be larger than a second set value, the point laser sensor continues to move for a set moving distance and then moves reversely; After the height difference data is detected to be stable, the point laser returns to the initial position; And judging the height difference data, screening effective data, and finally outputting data conforming to the outline of the sole. Further, the control unit controls the two point laser sensors to move along respective scanning paths so as to scan the contour areas on two sides of the sole in a partitioning manner. Further, the device also comprises two linear motion modules electrically connected with the control unit, wherein the two linear motion modules respectively control one point laser sensor to do reciprocating motion. Further, the effective data is a value near the maximum height data. Further, the shoe sole guide device also comprises a guide straightening mechanism which is arranged on the conveying path of the conveying mechanism and used for guiding, centering and correcting the posture of the shoe sole model. Further, the guide centering mechanism comprises two guide plates which are arranged in a horn mouth shape. Further, the laser emission direction of the spot laser sensor is directed toward the conveying plane of the conveying mechanism. Further, the control unit is an Arduino-based PCB control unit. Further, the first set point and the second set point are less than or equal to a minimum height difference between the sole model and the conveyor surface. By adopting the technical scheme, the invention can obtain the following technical effects: The application provides a sole profile scanning system based on a point laser sensor, which comprises a conveying mechanism, the point laser sensor and a control unit, wherein the intelligent motion control of the point laser sensor and the control unit is used for realizing efficient scanning and data processing, effectively reducing motion blur, screening effective data, improving detection precision and stability and reducing data processing load. Drawings In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings that are needed in the embodiments will be briefly described below, it being understood that the following drawings only illustrate some examples of the present invention and therefore should not be considered as limiting the scope, and other related drawings may be obtained according to these drawings without inventive effort for a person skilled in the art. Fig. 1 is a schematic structural diagram of a sole profile scanning system based on a point laser sensor according to an embodiment of the present invention. Fig. 2 is a schematic top view of a