Sole appearance detection machine

Abstract

The utility model discloses a sole appearance detection machine. The sole appearance detection machine comprises a conveying belt, a multi-shaft grabbing assembly, a visual detection assembly and a blocking assembly, the multi-shaft grabbing assembly adopts a double-acting cylinder to drive clamping jaws to open and close synchronously, and a first rotating cylinder is combined to realize 180-degree overturning detection of the shoe sole; the elastic pad is adjustable in thickness and is integrated with a pressure sensor to adapt to different shoe types and prevent overload. The visual detection assembly is linked through a horizontal sliding table air cylinder, a second rotating air cylinder and a lifting sliding table, so that a visual camera scans the surface and a groove of the shoe sole at multiple angles, and the detection precision is ensured in cooperation with an index plate (1 degree). The blocking assembly precisely fixes the shoe sole through the buffering baffle. According to the utility model, full-automatic double-sided detection is realized, the efficiency is greater than or equal to 800 pairs per hour, the defect detection rate is greater than or equal to 99%, the remodeling time is less than or equal to 2 minutes, the problems of low efficiency, high omission ratio and insufficient flexibility of the traditional equipment are solved, and the device is suitable for an intelligent shoe manufacturing production line.

Description

TECHNICAL FIELD

[0001] The utility model relates to shoe material detection technical field, especially a sole appearance detection machine. BACKGROUND

[0002] Every shoe manufacturing factory will check the quality of the manufactured shoes, and the quality detection of the shoes includes two aspects, one is appearance detection, and the other is wearing performance test, such as bending resistance, wear resistance, skid resistance and the like. The appearance detection is mainly whether to see burrs on the surface and whether the glue bonding of the sole is in place.

[0003] In the existing shoemaking process, the finished shoes must be detected after processing to check whether there are appearance defects such as damage and scratches on the surface of the shoes. The traditional sole appearance detection mainly relies on manual visual inspection or semi-automatic equipment, which has the following technical pain points: 1. Low efficiency and high missed detection rate: manual turnover detection is time-consuming, and cannot cover the complex areas such as the edge and groove of the sole, with a missed detection rate of more than 5%; automatic equipment adopts single-station single-face detection, which needs multiple feeding and discharging, and the detection amount is less than 200 pieces per hour. 2. Insufficient stability: the pose adjustment of the vision camera depends on manual operation, and the repeated positioning accuracy is poor (error > 2mm), which leads to image blur or misjudgment. 3. High equipment maintenance cost: the detection mechanism and the conveying belt are rigidly connected, and the vibration transmission of the equipment causes the imaging jitter of the vision camera, which increases the misjudgment rate to 3%. UTILITARIAN CONTENT

[0004] The utility model solves the technical problem of overcoming the defects of the prior art, and provides a sole appearance detection machine through multi-axis linkage clamping and overturning and a modular quick-release structure.

[0005] In order to solve the above technical problems, the utility model provides the following technical scheme:

[0006] The utility model relates a sole appearance detection machine, including conveying belt and setting in the multiaxis grabbing assembly of conveying belt middle section, visual detection component and blocking component, multiaxis grabbing assembly includes: two clamping jaws, its inboard is equipped with the elastic pad of silica gel material, and the elastic pad surface is equipped with the antiskid line; double -acting cylinder, and the end of two piston rods is fixedly connected through cylinder connecting plate and the end portion bolt of two clamping jaws, first rotary cylinder, and the rotary station is connected through bolt and the base of double -acting cylinder, and the axial degree of freedom of double -acting cylinder rotation around horizontal axle is limited, first lifting sliding platform cylinder, and the base bolt of sliding platform and first rotary cylinder is fixed, visual detection component includes: visual camera, is connected to the sliding platform of horizontal sliding platform cylinder through quick detach bolt, horizontal sliding platform cylinder, and the bottom is fixed in the rotary station of second rotary cylinder, and the base of second rotary cylinder is fixed to the sliding platform of second lifting sliding platform cylinder, and blocking component includes: baffle, and its top is equipped with rubber buffer pad, lifting cylinder, is connected through U type support and the frame bolt of conveying belt, and the piston rod of lifting cylinder is bolted with baffle.

[0007] As a preferred technical scheme of the utility model, the bases of the first lifting sliding platform cylinder and the second lifting sliding platform cylinder are fixed on the first vertical base and the second vertical base respectively through bolts, the first vertical base and the second vertical base are symmetrically arranged on the two sides of the conveying belt, and the bottom of each of the first vertical base and the second vertical base is provided with a foot flange, four through holes symmetrically distributed at the four corners of the flange are formed in the foot flange.

[0008] As a preferred technical scheme of the utility model, the thickness adjusting mechanism of the elastic pad comprises: an adjusting knob, the screw rod part of the adjusting knob is matched with a threaded hole arranged in the clamping jaw, the end part of the adjusting knob abuts against the back surface of the elastic pad, and a lock nut is arranged at the end of the screw rod part; a pressure sensor is further embedded in the inner side of the clamping jaw, the pressure sensor is embedded in a circular groove in the inner side of the clamping jaw, and the pressure sensor is connected to a PLC module in the control box through a shielded wire.

[0009] As a preferred technical scheme of the utility model, the visual camera is arranged directly above the blocking component, the optical axis of the visual camera is perpendicular to the surface of the conveying belt, and the base of the visual camera is bolted with the sliding platform of the horizontal sliding platform cylinder through a camera connecting plate.

[0010] As a preferred technical scheme of the utility model, the rotary station of the first rotary cylinder is provided with an angle limiting block on one side, and the contact surface of the angle limiting block and the flange surface of the rotary station form a 180° rotation stop.

[0011] As a preferred technical scheme of the utility model, the rotary station of the second rotary cylinder is provided with an angle scale disc on the end surface, and the division value of the angle scale disc is 1°.

[0012] Compared with the prior art, the utility model has the following beneficial effects:

[0013] 1. Double-sided synchronous detection: through the double-acting cylinder driving the clamping jaw to grab, combined with the first rotary cylinder 180° overturning, the quick switching detection of the front and back of the sole is realized, the efficiency is improved by more than 40%, and the time-consuming of manual overturning is avoided;

[0014] 2. Multi-degree-of-freedom visual tracking: horizontal sliding table cylinder, rotary cylinder and lifting sliding table cooperative control, visual camera can cover the whole surface of the sole (including edge / groove), defect detection rate ≥99%;

[0015] 3. Quick disassembly: visual camera quick disassembly bolt, clamping jaw detachable connection and other modular design, maintenance time consumption is reduced by 50%. BRIEF DESCRIPTION OF DRAWINGS

[0016] The accompanying drawings are used to provide a further understanding of the present application, and constitute a part of the specification, and are used to explain the present application together with embodiments of the present application, and do not constitute a limitation on the present application. In the drawings:

[0017] Figure 1 is a schematic diagram of the overall structure of the present application;

[0018] Figure 2 is a front view of the present application;

[0019] Figure 3 is a schematic diagram of the multi-axis grabbing assembly in the present application;

[0020] Figure 4 is a schematic diagram of the visual detection assembly in the present application;

[0021] Figure 5 is a schematic diagram of the blocking assembly in the present application;

[0022] In the drawings: 1, conveying belt; 2, multi-axis grabbing assembly; 3, visual detection assembly; 4, blocking assembly; 5, control box; 21, clamping jaw; 22, double-acting cylinder; 23, first rotary cylinder; 24, first lifting sliding table cylinder; 25, first vertical base; 31, visual camera; 32, horizontal sliding table cylinder; 33, second rotary cylinder; 34, second lifting sliding table cylinder; 35, second vertical base; 41, baffle; 42, lifting cylinder; 211, elastic pad; 212, adjusting knob; 213, pressure sensor; 221, cylinder connecting plate; 231, angle limiting block; 232, rotary table flange surface; 251, foot flange; 311, camera connecting plate; 331, angle scale dial; 411, rubber buffer pad; 421, U-shaped support. DETAILED DESCRIPTION

[0023] The preferred embodiments of the utility model are described below in combination with the drawings, and it should be understood that the preferred embodiments described herein are only used for illustrating and explaining the utility model, and are not used for limiting the utility model.

[0024] Wherein the same reference numerals in the drawings all refer to the same components.

[0025] As Figures 1-5 Indicated, the utility model provides a sole appearance detection machine, assembly connection fixed mode is as follows:

[0026] The transmission belt 1 is horizontally fixed on the workshop ground. The first vertical base 25 and the second vertical base 35 are symmetrically welded on both sides of the middle section of the transmission belt 1, and the base bottom is fixed through the foot flange 251, and the expansion bolt is locked to the ground through the through hole of the four corners of the flange.

[0027] The piston rod of the double-acting cylinder 22 is bolted to the end of the clamping jaw 21 through the cylinder connecting plate 221, and the inside of the clamping jaw 21 is provided with a silica gel elastic pad 211, and the surface of the elastic pad 211 is processed with anti-skid lines (depth 0.5~1mm).

[0028] The rotating table of the first rotary cylinder 23 is fixed in the circumferential direction with the base of the double-acting cylinder 22 through the key groove 231, and the flat key 232 is embedded in the key groove 231, to ensure the axial positioning of the rotation around the horizontal shaft.

[0029] The slide table of the first lifting slide table cylinder 24 is bolted to the base of the first rotary cylinder 23, and the slide table stroke range is 0~200mm (adjustable according to the thickness of the sole).

[0030] The visual camera 31 is fixed to the slide table of the horizontal slide table cylinder 32 through the quick-release bolt 311, and the slide table stroke is 500mm (covering the width of the transmission belt 1).

[0031] The base of the horizontal slide table cylinder 32 is fixed to the rotating table of the second rotary cylinder 33 through a bolt, and the base of the second rotary cylinder 33 is connected with the slide table of the second lifting slide table cylinder 34, and the lifting stroke is 0~300mm.

[0032] The U-shaped bracket 421 is welded on both sides of the frame of the transmission belt 1, and the cylinder body of the lifting cylinder 42 is bolted with the bracket.

[0033] The baffle 41 is connected with the piston rod of the lifting cylinder 42 through the square flange 422, and the thickness of the rubber buffer pad 411 on the top of the baffle 41 is 10mm (Shao hardness 50A).

[0034] The rotary adjusting knob 212 pushes the elastic pad 211 to stretch and retract through the threaded hole in the clamping jaw 21, adjusts the distance between the clamping jaws 21 (range 50~150mm), and the anti-loosening nut is installed at the end of the knob to prevent backtracking.

[0035] The pressure sensor 213 is embedded in the inside circular groove of the clamp jaw 21, the range is 0-500N, is connected with the PLC module 5 through the shielded wire, the clamping force safety threshold (such as 200N) is set, and the emergency stop is triggered when exceeding the limit.

[0036] The dial 331 (the division value is 1°) of the second rotary cylinder 33 is used for fine adjustment of the camera tilt angle (±30°), and the sole edge and the groove area are covered.

[0037] The camera resolution is set to 5 million pixels, the ring light source (illuminance 1000Lux) is matched, and the defect identification algorithm (such as edge crack and glue separation detection) is set by software.

[0038] The use mode of the utility model is as follows:

[0039] 1, the sole is moved to the blocking assembly 4 position along the conveying belt 1, the lifting cylinder 42 drives the baffle 41 to rise, and the sole is accurately positioned;

[0040] 2, the first lifting slide table cylinder 24 of the multi-axis grabbing assembly 2 is lowered, and the clamp jaw 21 holds the sole and then lifts;

[0041] 3, the first rotary cylinder 23 drives the sole to overturn 180°, and the visual camera 31 sequentially shoots the front and back images;

[0042] 4, the horizontal slide table cylinder 32 drives the camera to move horizontally, the second rotary cylinder 33 adjusts the pitch angle, and the second lifting slide table cylinder 34 adjusts the height, so that the whole surface scanning of the sole is completed.

[0043] The utility model discloses a sole appearance detection machine, through multi-axis cooperative control and intelligent visual detection technology, the problems, such as low efficiency, poor precision and complex change of traditional manual or semi-automatic equipment are solved, and the utility model discloses a shoe manufacturing automation production line, significantly reduces the manual cost, improves the quality inspection consistency and efficiency (detection amount is greater than or equal to 800 pairs / hour), and supports the flexible production demand.

[0044] Finally, it should be noted that: the above only for preferred embodiment of the utility model has been described, and does not limit the utility model, although the utility model is described in detail with reference to the foregoing embodiments, for the person skilled in the art, still can modify the technical scheme recorded in the foregoing each embodiment, or equivalent replacement to part of technical features. Any modification, equivalent replacement, improvement etc. that is made within the spirit and principle of the utility model should be included in the protection scope of the utility model.

Claims

1. A sole appearance detection machine, comprising a conveying belt (1) and a multi-axis grabbing assembly (2), a visual detection assembly (3) and a blocking assembly (4) arranged at the middle section of the conveying belt (1), characterized in that, The multi-axis grabbing assembly (2) comprises two clamping jaws (21), the inner side of which is provided with an elastic pad (211) made of silica gel, the surface of the elastic pad (211) being provided with anti-skid lines; a double-acting air cylinder (22), the piston rods at both ends of which are fixedly connected with the end portions of the two clamping jaws (21) through an air cylinder connecting plate (221); a first rotary air cylinder (23), the rotary table of which is connected with the base of the double-acting air cylinder (22) through bolts, thereby limiting the axial freedom of the double-acting air cylinder (22) rotating around a horizontal axis; a first lifting slide cylinder (24), the slide table of which is fixedly connected with the base of the first rotary air cylinder (23) through bolts; the visual detection assembly (3) comprises a visual camera (31) connected with the slide table of a horizontal slide cylinder (32) through quick-release bolts; the horizontal slide cylinder (32) is fixed at the bottom of a rotary table of a second rotary air cylinder (33); the base of the second rotary air cylinder (33) is fixedly connected with the slide table of a second lifting slide cylinder (34); the blocking assembly (4) comprises a baffle (41) provided with a rubber buffer pad (411) at the top; a lifting cylinder (42) connected with the frame of the conveying belt (1) through a U-shaped support (421), the piston rod of the lifting cylinder (42) being fixedly connected with the baffle (41) through bolts.

2. The shoe sole appearance inspection machine according to claim 1, wherein The bases of the first lifting slide cylinder (24) and the second lifting slide cylinder (34) are fixedly connected with a first vertical base (25) and a second vertical base (35) through bolts, respectively; the first vertical base (25) and the second vertical base (35) are symmetrically arranged on both sides of the conveying belt (1) and are each provided with a foot flange (251) at the bottom, the foot flange (251) being provided with four through holes symmetrically distributed at the four corners of the flange.

3. The shoe sole appearance inspection machine according to claim 1, wherein The thickness adjusting mechanism of the elastic pad (211) comprises an adjusting knob (212), the screw rod of which is matched with a threaded hole arranged in the clamping jaw (21), the end portion of the knob abutting against the back surface of the elastic pad (211), and a lock nut arranged at the end of the screw rod; a pressure sensor (213) is further embedded in the inner side of the clamping jaw (21), the pressure sensor (213) being embedded in a circular groove in the inner side of the clamping jaw (21) and being connected with a PLC module in a control box (5) through a shielded wire.

4. The shoe sole appearance inspection machine according to claim 1, wherein The visual camera (31) is arranged directly above the blocking assembly (4) and has an optical axis perpendicular to the surface of the conveying belt (1), and the base of the visual camera (31) is connected with the slide table of the horizontal slide cylinder (32) through a camera connecting plate (311) and bolts.

5. The shoe sole appearance inspection machine according to claim 1, wherein One side of the rotary table of the first rotary air cylinder (23) is provided with an angle limiting block (231), the contact surface of which forms a 180° rotary stop with a flange surface (232) of the rotary table.

6. The shoe sole appearance inspection machine according to claim 1, wherein The end surface of the rotary table of the second rotary air cylinder (33) is provided with an angle scale dial (331), the division value of the angle scale dial (331) being 1°.

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