Continuous blanking method for multiple workpieces

Abstract

The invention discloses a continuous blanking method for multiple workpieces, which comprises the following steps of: connecting workpiece profile diagrams end to end along the direction of a symmetry axis, alternately deleting profiles on one side of the symmetry axis of the workpiece profiles, jointing to form a continuous S-shaped curve, and mirroring the curve to obtain a complete single-row lining cloth cutting line. According to the method, the blanking efficiency of the circular lining cloth is improved.

Description

Technical Field

[0001] The invention belongs to the technical field of aerostat application, and in particular relates to a method for continuously unloading multiple workpieces. Background Art

[0002] In the process of making the aerostat bladder, in addition to the bladder pieces, there are a large number of small circular linings as bladder accessories or reinforcement linings. When using a single-layer cutting table for cutting and blanking, when cutting such circular linings, the cutting table tool will be lifted up after cutting a whole circular trajectory, and the knife will fall at the starting point of the next circular trajectory. When cutting a large number of circular linings, the cutting table tool will be lifted up and dropped down repeatedly, which not only affects work efficiency, but the frequent lifting and lowering of the tool also increases the risk of dragging the cloth and causing the overall cutting position to shift. In addition, some circular linings may not be cut completely and still need to be manually trimmed from the cloth. Summary of the invention

[0003] Purpose of the Invention

[0004] In order to solve the problem of cutting round lining cloth, the present invention provides a method for continuously cutting multiple workpieces.

[0005] Inventing technical solutions

[0006] A method for continuous cutting of multiple workpieces, which connects the workpiece contours head to tail along the symmetry axis, alternately deletes the contours on one side of the symmetry axis of the workpiece contours and connects them into a continuous S-shaped curve, and then mirrors the curve to obtain a complete single-row lining cloth cutting line.

[0007] Preferably, when the workpieces are closely laid along the symmetry axis, only a tangent point can be formed between two adjacent workpieces.

[0008] Preferably, the method is applicable to workpieces having shapes including circular and elliptical.

[0009] Preferably, before deleting the contour on one side of the symmetry axis of the workpiece contour, the symmetry axes of each workpiece are drawn and sequentially connected into a line as an auxiliary line.

[0010] Preferably, the auxiliary line is used as the axis of symmetry during mirroring.

[0011] Preferably, after obtaining a single row of lining cloth cutting lines, multiple rows of lining cloth cutting lines are obtained by copying and pasting.

[0012] Preferably, when cutting, the material is cut along two S-shaped curves respectively.

[0013] Preferably, the position interval and size of the interlining cloth layout are determined according to the cloth width, the cutting table operation range, and the actual interlining cloth cutting range.

[0014] Advantages of the present invention:

[0015] 1) Improving the cutting efficiency of multiple circular interlinings: This method can achieve continuous cutting of multiple circular interlinings while performing only two cutting actions.

[0016] 2) It can improve the utilization rate of materials: since multiple round interlinings can be joined head to tail and cut, there is no need to reserve the spacing of the cutting path, and the most round interlinings can be cut at the same length.

[0017] 3) Improve the quality of circular interlining cloth: The circular interlining cloth cutting part of this method is formed by the intersection of two cutting tracks, so there will be no uncut phenomenon, reducing the post-processing of the cutting operation. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 This is a schematic diagram of the layout of the cutting range.

[0019] Figure 2 To generate a continuous clipping path diagram.

[0020] Figure 3 To complete the clipping path and layout diagram. DETAILED DESCRIPTION

[0021] The present invention is achieved through the following technical solutions.

[0022] A method for continuous cutting of multiple workpieces. When drawing multiple circular lining cloth pieces, the method connects a large number of circular lining cloth pieces end to end, alternately deletes half of the circular contours, and connects them to obtain a continuous S-shaped curve, which is mirrored to obtain the original circular lining cloth piece drawing with the ends connected.

[0023] The specific steps include:

[0024] 1) Cutting range layout

[0025] ① According to the fabric width, cutting bed operating range, and actual interlining material cutting range, confirm the position interval and size of the single-line interlining layout;

[0026] ② In the layout area, layout the circular lining cloths to be cut. During layout, the centers of the circular lining cloths are on the same straight line and the circular lining cloths are circumscribed;

[0027] In this embodiment, the size of the lining cloth layout is 1800mm×600mm, and the diameter of the circular lining cloth is 100mm.

[0028] When typesetting, the direction of the straight line where the center of each circular lining cloth is located can be determined by the shape of the typesetting interval. In this embodiment ( Figure 1 ) is along the longitudinal direction.

[0029] 2) Generate a continuous clipping path.

[0030] ① Draw the straight lines where each circle is located as auxiliary lines;

[0031] ②Alternately delete the semicircular arcs on one side of the auxiliary line to obtain a curved path;

[0032] ③ Use the join command to join multiple semicircular arcs into a continuous curve path.

[0033] 3) Complete the clipping path and layout.

[0034] ①Use the mirror command to mirror the continuous curve path with the auxiliary line (the straight line where the center of the circle is located) as the symmetry axis to obtain a complete circular lining cutting line;

[0035] ② Copy and paste the obtained circular lining cutting line, layout multiple rows of circular lining to obtain the required number

[0036] As required, this method can be applied to contours such as perfect circles and ellipses that can only form tangent points (rather than colinearities) when densely laid along a certain direction.

[0037] The protection scope of the present invention is not limited to the above-mentioned embodiments. Obviously, those skilled in the art can make various changes and modifications to the present invention without departing from the scope of the present invention. If these changes and modifications fall within the scope of the claims of the present invention and their equivalents, the present invention is intended to include these changes and modifications.

Claims

1. A method for continuously unloading multiple workpieces, characterized in that: The method connects the workpiece contour along the symmetry axis, deletes the contours on one side of the symmetry axis alternately and connects them into a continuous S-shaped curve, then mirrors the curve to obtain a complete single-line lining cutting line.

2. A method for continuously unloading multiple workpieces as claimed in claim 1, characterized in that: When the workpieces are closely laid along the axis of symmetry, only tangent points can be formed between two adjacent workpieces.

3. A method for continuously unloading multiple workpieces as claimed in claim 2, characterized in that: The workpiece shapes applicable to this method include round and elliptical.

4. A method for continuously unloading multiple workpieces as claimed in claim 1, characterized in that: Before deleting the contour on one side of the symmetry axis of the workpiece contour, draw the symmetry axis of each workpiece and connect them in sequence into a line as an auxiliary line.

5. A method for continuously unloading multiple workpieces as claimed in claim 4, characterized in that: When mirroring, use the auxiliary line as the axis of symmetry.

6. A method for continuously unloading multiple workpieces as claimed in claim 1, characterized in that: After obtaining a single line of lining cloth cutting lines, copy and paste to obtain multiple lines of lining cloth cutting lines.

7. A method for continuously unloading multiple workpieces as claimed in claim 1, characterized in that: When cutting the material, cut along two S-shaped curves respectively.

8. A method for continuously unloading multiple workpieces as claimed in claim 1, characterized in that: The position interval and size of the single-line interlining layout are determined according to the fabric width, the cutting table operating range, and the actual interlining cutting range.

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