Bottle mouth endoscopic optical detection device

Abstract

The present invention relates to the technical field of glass bottle detection, and discloses a bottle mouth endoscopic optical detection device, including a transport seat, a belt conveyor is installed at the middle position of the upper end surface of the transport seat, glass bottles are arranged in sequence at the upper end of the belt conveyor, and a flip shaft is horizontally installed at one end of the transport seat near the belt conveyor. The bottle mouth endoscopic optical detection device described in the present invention starts a uniform speed motor, and through a series of transmissions, the connecting column drives the rotating table to rotate slowly around the large bearing, thereby driving the driving outer shell to perform circular motion as a whole, and at the same time, the glass bottle between the two groups of curved clamps rotates synchronously. During the rotation process, several groups of lamp beads on the annular light belt emit light, and the interior is illuminated through the transparent glass layer of the bottle mouth. At this time, a fixed micro camera is used to continuously shoot the inner wall of the rotating bottle mouth, so as to achieve the purpose of automatic annular detection, which reduces the detection error and improves work efficiency compared with manual detection.

Description

Technical Field

[0001] The invention relates to the technical field of glass bottle detection, and in particular to a bottle mouth endoscopic optical detection device. Background Art

[0002] Glass bottles have the advantages of beautiful appearance, good sealing, stable chemical properties, and recyclability. They are widely used in the packaging of food, beverages, medicines and other products. In the production process of glass bottles, there are often certain defects in the mouth of the glass bottle, such as gaps, notches, cracks, etc. These defective glass bottles enter the packaging process and are more likely to explode once filled with liquid. In addition, the use of defective glass bottles for packaging is likely to cause food safety problems. Therefore, optical detection is used to detect the mouth of the glass bottle through light source illumination and camera.

[0003] The existing optical detection device has many technical defects when in use. First, the glass bottles are transported and unloaded in sequence by a belt conveyor, and the unloading speed control effect is poor, which may easily lead to material accumulation and inaccurate unloading position of the glass bottles. Second, when the glass bottles are inspected by a light source, manual labor is required to fix the glass bottles and adjust the position of the light source. The operation is cumbersome, the degree of automation is low, and manual errors may occur, resulting in poor detection accuracy and low work efficiency. Third, when the light source is used to illuminate the mouth of the glass bottle, there is external light pollution, which interferes with the normal use of the light source, thereby reducing the clarity of the camera image.

[0004] In summary, considering that the existing facilities cannot meet the work requirements, we propose a bottle mouth endoscopic optical inspection device. Summary of the invention

[0005] The main purpose of the present invention is to provide a bottle mouth endoscopic optical detection device, which can effectively solve the problems in the background technology.

[0006] To achieve the above object, the technical solution adopted by the present invention is:

[0007] A bottle mouth endoscopic optical inspection device comprises a transport seat, a belt conveyor is installed at the middle position of the upper end surface of the transport seat, glass bottles are arranged in sequence on the upper end of the belt conveyor, a turning shaft is horizontally installed at one end of the transport seat near the belt conveyor, and two groups of intermittent material guides are symmetrically sleeved in the middle of the turning shaft.

[0008] As a preferred solution of the bottle mouth endoscopic optical inspection device described in the present invention, a workbench is fixedly arranged on one side of the transport seat and below the intermittent material guide, one end of the workbench is riveted to a limited outer seat, a rotating groove is opened inside the limited outer seat, a rotating table is movably arranged in the rotating groove, the outer side of the rotating table is fixed by a large bearing and the inner wall of the rotating groove, and the end of the rotating table away from the limited outer seat is welded with a driving outer shell by an angle iron, and the number of the angle irons is 4 groups.

[0009] As a preferred solution of the bottle mouth endoscopic optical inspection device described in the present invention, wherein: a support frame is fixed to the other end of the workbench, the upper end of the support frame is connected to a cylinder seat, a telescopic control cylinder is installed in the cylinder seat, a telescopic rod is horizontally arranged outside the interior of the telescopic control cylinder, the end edge of the telescopic rod is connected to an annular light source seat through a plurality of groups of connecting rods, the number of the connecting rods is preferably 2-3 groups, and the annular light source seat is located around the outer side of the bottle mouth of the glass bottle.

[0010] As a preferred solution of the bottle mouth endoscopic optical inspection device described in the present invention, one end of the flip shaft is fixed by the first bearing seat and the upper end surface of the transport seat, and the other end of the flip shaft is fixed by the second bearing seat and the inner wall of the transport seat, and the position where the flip shaft passes through the second bearing seat is sleeved with a large gear No. 1, and the lower end of the large gear No. 1 is meshed with a small gear No. 1, and the small gear No. 1 is sleeved on the output shaft of the servo motor, and a part of the servo motor passes through the outer side surface of the transport seat, and the large gear No. 1 and the small gear No. 1 are both located inside the transport seat.

[0011] As a preferred embodiment of the bottle mouth endoscopic optical inspection device described in the present invention, the intermittent material guide comprises a curved material receiving surface, a material guiding plane, a curved material blocking back side, a movable groove, a buffer block and a buffer spring; the inner side of the intermittent material guide is sequentially provided with a curved material receiving surface and a material guiding plane acting on the glass bottle; the curved material receiving surface and the material guiding plane have a smooth transition; the back side of the intermittent material guide is provided with a curved material blocking back side for blocking the glass bottle; a movable groove is provided in the middle of the curved material blocking back side; a buffer block is movably provided in the movable groove; the buffer block is connected to the inner wall of the movable groove by a plurality of groups of buffer springs; the buffer block and the glass bottle are in conflict; and the number of the buffer springs is preferably 2-4 groups.

[0012] As a preferred solution of the bottle mouth endoscopic optical inspection device described in the present invention, a connecting column is horizontally welded at the middle position of the end surface of the rotating table, and the connecting column is fixed by a third bearing seat and the inner surface of the limiting outer seat, and a No. 2 large gear is sleeved on the connecting column, and a No. 2 small gear is meshed at the lower end of the No. 2 large gear, and the No. 2 small gear is sleeved on the output shaft of the uniform speed motor, and the uniform speed motor passes through the outer surface of the limiting outer seat.

[0013] As a preferred solution of the bottle mouth endoscopic optical inspection device described in the present invention, a hydraulic cylinder is horizontally installed at the middle position of the end surface of the driving outer shell close to the rotating table, and the hydraulic control rod on the hydraulic cylinder extends outward from the inside of the hydraulic cylinder. A trapezoidal motion seat is welded to the end of the hydraulic control rod, and the trapezoidal motion seat is located in the middle position inside the driving outer shell. Slide rods are installed on both sides of the trapezoidal motion seat, and linear displacement inclined blocks that act on the slide rods are symmetrically arranged on both sides of the trapezoidal motion seat, and the number of the linear displacement inclined blocks is 2 groups.

[0014] As a preferred solution of the bottle mouth endoscopic optical inspection device described in the present invention, wherein: the inner side surfaces of the two groups of the linear displacement inclined blocks are provided with sliding grooves, the interior of the sliding grooves is provided with inner wide grooves for limiting the movement of the slide rods, the linear displacement inclined blocks are partially extended out of the driving outer shell body, the end of the driving outer shell body is provided with a guide groove for the movement of the linear displacement inclined blocks, and a curved clamping block is fixed to the end of the linear displacement inclined block away from the trapezoidal motion seat, the two groups of the curved clamping blocks are distributed up and down to clamp the glass bottle horizontally, the lower curved clamping block is located obliquely below the intermittent material guide, the inner surfaces of the two groups of the curved clamping blocks are provided with anti-slip pads, and the single side surface of the lower curved clamping block is provided with a baffle acting on the glass bottle.

[0015] As a preferred solution of the bottle mouth endoscopic optical inspection device described in the present invention, an endoscopic rod is horizontally welded at the middle position of the end of the telescopic rod, a mounting frame is fixed to the end of the endoscopic rod and located inside the annular light source seat, the mounting frame extends into the bottle mouth of the glass bottle, and a miniature camera is installed outside the inside of the mounting frame.

[0016] As a preferred solution of the bottle mouth endoscopic optical inspection device described in the present invention, wherein: an annular light strip is installed at the middle position of the inner side surface of the annular light source seat, and lamp beads are evenly distributed on the annular light strip, and the number of the lamp beads is preferably 4-12 groups, and an inner shading layer is provided on the edge of the inner side surface of the annular light source seat close to the curved clamp block, and an outer shading layer is provided on the edge of the inner side surface of the annular light source seat close to the telescopic rod, and the inner shading layer and the outer shading layer are connected by a plurality of groups of ventilation tubes, and the number of the ventilation tubes is preferably 3-5 groups.

[0017] As a preferred solution of the bottle mouth endoscopic optical inspection device described in the present invention, the inner light-shielding layer includes a first annular positioning plate, a first hollow sleeve and a compressed air bag, the first annular positioning plate is fixed inside the annular light source seat, the inner side of the first annular positioning plate is installed with a first hollow sleeve, the inner side of the first hollow sleeve is glued with a compressed air bag, and the compressed air bag and the outer surface of the bottle mouth are squeezed against each other.

[0018] As a preferred solution of the bottle mouth endoscopic optical inspection device described in the present invention, the outer light-shielding layer includes a second annular positioning piece, a second hollow sleeve, a sealing airbag and an external fixing strip, the second annular positioning piece is fixed inside the annular light source seat, a second hollow sleeve is installed on the inner side of the second annular positioning piece, the ventilation pipe connects the interiors of the first hollow sleeve and the second hollow sleeve, a sealing airbag is glued to the inner side of the second hollow sleeve, an external fixing strip is fixed on the side of the sealing airbag and to the second annular positioning piece, and the sealing airbag is in contact with the outer end of the bottle mouth.

[0019] As a preferred solution of the bottle mouth endoscopic optical inspection device described in the present invention, the upper end surface of the transport seat is provided with a protective pad in contact with the bottle mouth.

[0020] As a preferred solution of the bottle mouth endoscopic optical inspection device described in the present invention, linear slides are symmetrically arranged on both sides of each group of the linear displacement inclined blocks, and a guide track for the linear slide to move is opened near the guide groove inside the driving outer shell.

[0021] As a preferred solution of the bottle mouth endoscopic optical inspection device described in the present invention, a portion of the buffer block extends out of the movable groove, and under the pressure of the glass bottle, the buffer block completely extends into the movable groove.

[0022] As a preferred solution of the bottle mouth endoscopic optical inspection device described in the present invention, the groove space formed by the curved material receiving surface is only for one group of glass bottles to enter.

[0023] As a preferred solution of the bottle mouth endoscopic optical inspection device described in the present invention, when the intermittent material guide is turned over clockwise, the height of the curved material receiving surface is not higher than the height of the belt conveyor.

[0024] As a preferred solution of the bottle mouth endoscopic optical inspection device described in the present invention, the center of the endoscopic rod coincides with the center of the two sets of curved clamps clamping the glass bottle.

[0025] As a preferred solution of the bottle mouth endoscopic optical inspection device described in the present invention, the mounting frame extends into the center of the bottle mouth, and there is a gap between the micro camera and the inner wall of the bottle mouth.

[0026] As a preferred solution of the bottle mouth endoscopic optical inspection device described in the present invention, the micro camera transmits the image to an external display in a timely manner.

[0027] As a preferred solution of the bottle mouth endoscopic optical inspection device described in the present invention, the rotating table drives the outer shell to perform circular motion as a whole.

[0028] The present invention provides a bottle mouth endoscopic optical inspection device through improvement, which has the following significant improvements and advantages compared with the prior art:

[0029] (1) Design an intermittent material guide and start the servo motor. After a series of transmissions, the flip axis starts to drive the two groups of intermittent material guides to flip counterclockwise at a certain angle. The front group of glass bottles slides from the tail end of the belt into the curved receiving surface. Then the servo motor is reversed. Through a series of transmissions, the two groups of intermittent material guides flip clockwise back to their initial positions, and the back of the curved material stopper blocks the movement of the next group of glass bottles. The glass bottles on the curved receiving surface slide along the guide plane and fall into the curved clamp at the lower position in a parabolic motion path, achieving the purpose of intermittent unloading, effectively controlling the unloading speed, and accurately dropping the glass bottles into the specified position.

[0030] (2) The buffer block contacts the glass bottles moving on the belt, and uses the spring to produce a buffering effect to avoid direct collision between the glass bottles and the intermittent material guide, thereby reducing the damage rate.

[0031] (3) Let the hydraulic cylinder work, the hydraulic control rod is retracted, and the trapezoidal motion seat is driven to move linearly in the direction of the hydraulic cylinder. The sliding rod slides along the sliding grooves on the two sets of linear displacement inclined blocks respectively, and a pulling force is generated between the two sets, so that the two sets of linear displacement inclined blocks move toward each other along their respective guide grooves. The two sets of curved clamps slowly approach each other until the glass bottle is clamped up and down by the two sets of curved clamps, achieving the dual functions of fixing and centering calibration, with a high degree of automation.

[0032] (4) Start the uniform speed motor, and through a series of transmissions, the connecting column drives the rotating table to rotate slowly around the large bearing, thereby driving the outer shell to perform circular motion as a whole. At the same time, the glass bottle between the two sets of curved clamps rotates synchronously. During the rotation process, several groups of light beads on the circular light strip light up, illuminating the interior through the transparent glass layer of the bottle mouth. At this time, a fixed micro camera is used to continuously photograph the inner wall of the rotating bottle mouth, thereby achieving the purpose of automatic circular endoscopic inspection. Compared with manual inspection, it reduces inspection errors, improves work efficiency, and is compatible with automated production lines.

[0033] (5) Use an annular light source holder, which automatically retracts and contracts. On the one hand, the compressed air bag on the inner shading layer is first squeezed against the outer surface of the bottle mouth, and the compressed air bag fully fits the outer surface of the bottle mouth to form a shading seal on one side of the light source area. As the compressed air bag is compressed, the internal air enters the sealed air bag through a number of ventilation pipes, causing the sealed air bag to partially expand and elongate. The expanded sealed air bag is directly sealed at the outer edge of the bottle mouth to form a shading seal on the other side of the light source area, achieving the effect of shielding and sealing, preventing external light pollution, and improving imaging quality. They are all made of flexible materials to protect the bottle mouth. On the other hand, when the glass bottle is not accurately calibrated or related parts are loose, during the movement of the annular light source holder, the compressed air bag on the inner shading layer will appear when it crosses the outer edge of the bottle mouth. An obvious air bag blocking force will appear, and the sensor detects the signal and transmits it to the telescopic control cylinder to control the retraction of the telescopic rod, thereby achieving the effect of timely alarm and protecting the light source and camera parts. BRIEF DESCRIPTION OF THE DRAWINGS

[0034] Figure 1 It is a schematic diagram of the overall structure of a bottle mouth endoscope optical inspection device in one direction of the present invention;

[0035] Figure 2 It is a schematic diagram of the overall structure of another aspect of the present invention;

[0036] Figure 3 It is a schematic diagram of the transmission structure of the intermittent material guide of the present invention;

[0037] Figure 4 It is a schematic diagram of the specific structure of the intermittent material guide of the present invention;

[0038] Figure 5 It is a connection diagram of the buffer block of the present invention;

[0039] Figure 6 It is a structural schematic diagram of one direction of the upper end of the workbench of the present invention;

[0040] Figure 7 It is a structural schematic diagram of another direction of the upper end of the workbench of the present invention;

[0041] Figure 8 It is a schematic diagram of the transmission structure of the rotating table of the present invention;

[0042] Fig. 9 This is a schematic diagram of the external structure of the driving outer shell of the present invention;

[0043] Fig.10 This is a schematic diagram of the internal structure of the driving outer shell of the present invention;

[0044] Fig.11 It is a schematic diagram of the specific structure of the linear displacement inclined block of the present invention;

[0045] Fig.12 Schematic diagram of the driving structure of the micro camera of the present invention;

[0046] Fig.13 It is a schematic diagram of the specific structure of the annular light source seat of the present invention;

[0047] Fig.14 It is a schematic diagram of the connection between the inner shading layer and the outer shading layer of the present invention;

[0048] Fig.15 It is a schematic diagram of the specific structure of the inner light-shielding layer of the present invention;

[0049] Fig.16 It is a schematic diagram of the specific structure of the external light-shielding layer of the present invention.

[0050] In the figure: 1. transport seat; 2. belt conveyor; 3. glass bottle; 4. bottle mouth; 5. workbench; 7. intermittent material guide; 71. curved material receiving surface; 72. material guide plane; 73. curved material blocking back; 74. movable groove; 75. buffer block; 76. buffer spring; 8. inner light shielding layer; 81. first annular positioning piece; 82. first hollow sleeve; 83. compressed air bag; 9. outer light shielding layer; 91. second annular positioning piece; 92. second hollow sleeve; 93. sealing air bag; 94. outer fixing strip; 10. turning shaft; 11. first bearing seat; 12. second bearing seat; 13. No. 1 large gear; 14. No. 1 small gear; 15. servo motor; 20. limit outer seat; 21. rotating groove; 22. rotating table; 23. large bearing; 24 , connecting column; 25, the third bearing seat; 26, the second large gear; 27, the second small gear; 28, the uniform speed motor; 29, the angle iron; 30, the driving outer shell; 31, the hydraulic cylinder; 32, the hydraulic control rod; 33, the trapezoidal motion seat; 34, the sliding rod; 35, the linear displacement inclined block; 36, the sliding groove; 37, the inner width groove; 38, the curved clamping block; 39, the anti-skid pad; 40, the supporting frame; 41, the cylinder seat; 42, the telescopic control cylinder; 43, the telescopic rod; 44, the endoscope rod; 45, the mounting frame; 46, the miniature camera; 50, the annular light source seat; 51, the connecting rod; 52, the annular light strip; 53, the lamp beads; 54, the ventilation pipe; 60, the protective pad; 61, the guide groove; 62, the guide track; 63, the linear slide; 64, the baffle. DETAILED DESCRIPTION

[0051] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0052] like Figure 1-Figure 16 As shown, this embodiment provides a bottle mouth endoscopic optical inspection device, including a transport base 1, a belt conveyor 2 is installed at the middle position of the upper end surface of the transport base 1, glass bottles 3 are arranged in sequence on the upper end of the belt conveyor 2 (the glass bottles 3 are in contact with each other in sequence), a turning shaft 10 is horizontally installed at one end of the transport base 1 near the belt conveyor 2, and two groups of intermittent material guides 7 are symmetrically sleeved in the middle of the turning shaft 10.

[0053] Among them, one end of the flip shaft 10 is fixed by the first bearing seat 11 and the upper end surface of the transport seat 1 to play a positioning role, and the other end of the flip shaft 10 is fixed by the second bearing seat 12 and the inner wall of the transport seat 1 to play a positioning role. Figure 1 and Figure 3 shown.

[0054] Wherein, the position where the flip shaft 10 passes through the second bearing seat 12 is sleeved with a large gear 13, and the lower end of the large gear 13 is meshed with a small gear 14, and the small gear 14 is sleeved on the output shaft of the servo motor 15. A part of the servo motor 15 passes through the outer side of the transport seat 1, and the large gear 13 and the small gear 14 are both located inside the transport seat 1. Figure 3 shown.

[0055] Specifically, the intermittent material guide 7 includes a curved material receiving surface 71, a material guiding plane 72, a curved material blocking back surface 73, a movable groove 74, a buffer block 75 and a buffer spring 76. Figure 4 and Figure 5 shown.

[0056] In this embodiment, a curved material receiving surface 71 and a material guiding plane 72 acting on the glass bottles 3 are sequentially arranged on the inner side of the intermittent material guide 7. The curved material receiving surface 71 and the material guiding plane 72 have a smooth transition. The groove space formed by the curved material receiving surface 71 is only for one group of glass bottles 3 to enter. The back side of the intermittent material guide 7 is provided with a curved material blocking back side 73 for blocking the glass bottles 3.

[0057] In this embodiment, a movable groove 74 is opened in the middle of the curved back surface 73 of the material stopper, and a buffer block 75 is movably arranged in the movable groove 74. The buffer block 75 is connected to the inner wall of the movable groove 74 through a plurality of groups of buffer springs 76, and the buffer block 75 and the glass bottle 3 are in conflict.

[0058] Part of the buffer block 75 extends out of the movable groove 74, and under the pressure of the glass bottle 3, the buffer block 75 completely extends into the movable groove 74. At this time, the buffer spring 76 is compressed, and under the condition of contacting the glass bottle 3, several groups of buffer springs 76 drive the buffer block 75 to reset.

[0059] When the intermittent material guide 7 is turned counterclockwise, the height of the curved material receiving surface 71 is not higher than the height of the belt conveyor 2 .

[0060] Furthermore, a workbench 5 is fixedly arranged on one side of the transport seat 1 and below the intermittent material guide 7. One end of the workbench 5 is riveted to a limited outer seat 20. A rotating groove 21 is provided inside the limited outer seat 20. A rotating table 22 is movably arranged inside the rotating groove 21. The outer side of the rotating table 22 is fixed by a large bearing 23 and the inner wall of the rotating groove 21 to play a positioning role. Figure 6-Figure 8 shown.

[0061] A connecting column 24 is horizontally welded at the middle position of the end surface of the rotating table 22. The connecting column 24 is fixed by the third bearing seat 25 and the inner surface of the limiting outer seat 20 to play a positioning role. Figure 8 shown.

[0062] Among them, a second large gear 26 is sleeved on the connecting column 24, and a second small gear 27 is meshed at the lower end of the second large gear 26. The second large gear 26 and the second small gear 27 are both located inside the rotating groove 21. The second small gear 27 is sleeved on the output shaft of the uniform speed motor 28, and the uniform speed motor 28 passes through the outer side surface of the limiting outer seat 20, such as Figure 7-Figure 8 shown.

[0063] Furthermore, the end of the rotating platform 22 away from the limiting outer seat 20 is welded with the driving outer shell 30 through four sets of angle irons 29, which plays a connecting and fixing role. The rotating platform 22 drives the driving outer shell 30 to make a circular motion as a whole. Figure 6 and Figure 7 shown.

[0064] A hydraulic cylinder 31 is horizontally mounted in the middle of the end surface of the driving outer shell 30 close to the rotating table 22. A hydraulic control rod 32 on the hydraulic cylinder 31 extends outward from the inside of the hydraulic cylinder 31. A trapezoidal motion seat 33 is welded to the end of the hydraulic control rod 32. The cross section of the trapezoidal motion seat 33 is an isosceles trapezoid, such as Figure 8-Figure 10 shown.

[0065] The trapezoidal motion seat 33 is located in the middle of the driving outer shell 30, and the two sides of the trapezoidal motion seat 33 are equipped with slide bars 34. The two sides of the trapezoidal motion seat 33 are symmetrically provided with linear displacement inclined blocks 35 that act on the slide bars 34. Fig.10 shown.

[0066] Specifically, the inner side surfaces of the two sets of linear displacement inclined blocks 35 are provided with sliding grooves 36, and the inner width grooves 37 for limiting the movement of the slide rod 34 are provided inside the sliding grooves 36 (the shapes of the slide rod 34 and the inner width grooves 37 match each other), and the linear displacement inclined blocks 35 partially extend out of the drive housing 30, and the end of the drive housing 30 is provided with a guide groove 61 for the linear displacement inclined blocks 35 to move, which plays a guiding role, such as Fig.10 and Fig.11 shown.

[0067] Among them, linear slide bars 63 are symmetrically arranged on both sides of each set of linear displacement inclined blocks 35, and a guide track 62 for the linear slide bar 63 to move is opened near the guide groove 61 inside the driving outer shell 30. The linear slide bar 63 and the guide track 62 are matched to play a role of limiting guidance, such as Figure 9-11 shown.

[0068] In this embodiment, a curved clamping block 38 (the curvature of the curved clamping block 38 is not greater than the outer surface of the glass bottle 3) is fixed to the end of the linear displacement inclined block 35 away from the trapezoidal motion seat 33. The two groups of curved clamping blocks 38 are distributed up and down to clamp the glass bottle 3 horizontally. The lower curved clamping block 38 is located obliquely below the intermittent material guide 7. The inner surfaces of the two groups of curved clamping blocks 38 are both provided with anti-skid pads 39, which play a buffering and anti-skid role and improve the stability of the glass bottle 3 clamping. The side of the lower curved clamping block 38 is provided with a blocking piece 64 that acts on the glass bottle 3 to block the glass bottle 3 moving from the material guide plane 72 to the curved clamping block 38 to prevent it from falling off the curved clamping block 38. Figure 8 and Fig. 9 shown.

[0069] When the two sets of curved clamping blocks 38 are clamped and rotated, the ends of the intermittent material guides 7 will not be contacted within the range of their movement paths.

[0070] Furthermore, a support frame 40 is fixed to the other end of the workbench 5 to play a supporting role. The upper end of the support frame 40 is connected to a cylinder seat 41, which plays a role of storage and installation. A telescopic control cylinder 42 is installed in the cylinder seat 41. Figure 6 and Figure 7 shown.

[0071] Among them, a telescopic rod 43 is horizontally arranged outside the telescopic control cylinder 42, and an endoscope rod 44 is horizontally welded at the middle position of the end of the telescopic rod 43. The center of the endoscope rod 44 coincides with the center of the two sets of curved clamping blocks 38 clamping the glass bottle 3. Fig.12 shown.

[0072] Specifically, a mounting frame 45 is fixed at the end of the endoscope rod 44 and is located inside the annular light source seat 50. The mounting frame 45 extends into the bottle mouth 4 of the glass bottle 3. A miniature camera 46 (such as a pinhole camera) is installed outside the mounting frame 45. The mounting frame 45 extends into the center of the bottle mouth 4. There is a gap between the miniature camera 46 and the inner wall of the bottle mouth 4 to avoid interference with the operation of the miniature camera 46. Fig.12 shown.

[0073] The end edge of the telescopic rod 43 is connected to an annular light source seat 50 through a plurality of connecting rods 51. The annular light source seat 50 is located around the outer side of the bottle mouth 4 of the glass bottle 3. Figure 7 and Fig.12 shown.

[0074] In this embodiment, an annular light strip 52 is installed at the middle position of the inner side surface of the annular light source seat 50, and lamp beads 53 (or LED light-emitting chips, the light source can be selected according to actual conditions) are evenly distributed on the annular light strip 52. An inner shading layer 8 is provided on the inner side edge of the annular light source seat 50 near the curved clamping block 38, and an outer shading layer 9 is provided on the inner side edge of the annular light source seat 50 near the telescopic rod 43. The inner shading layer 8 and the outer shading layer 9 are connected by a plurality of ventilation pipes 54, such as Fig.13 and Fig.14 shown.

[0075] Specifically, the inner light shielding layer 8 includes a first annular positioning sheet 81, a first hollow sleeve 82 and a compression air bag 83. Fig.15 shown.

[0076] In this embodiment, the first annular positioning plate 81 is fixed inside the annular light source seat 50, and a first hollow sleeve 82 is installed on the inner side of the first annular positioning plate 81. A compressed air bag 83 is glued to the inner side of the first hollow sleeve 82, and the two are internally connected. The compressed air bag 83 has the ability to restore deformation, and the compressed air bag 83 and the outer surface of the bottle mouth 4 are squeezed.

[0077] Specifically, the outer light shielding layer 9 includes a second annular positioning sheet 91, a second hollow sleeve 92, a sealing airbag 93 and an outer fixing strip 94. Fig.16 shown.

[0078] In this embodiment, the second annular positioning piece 91 is fixed inside the annular light source seat 50, and a second hollow sleeve 92 is installed on the inner side of the second annular positioning piece 91. The ventilation pipe 54 connects the interior of the first hollow sleeve 82 and the second hollow sleeve 92. A sealing airbag 93 is glued to the inner side of the second hollow sleeve 92, and the two are internally connected. The sealing airbag 93 has the ability to reset its shape. An external fixing strip 94 is fixed on the side of the sealing airbag 93 and fixed to the second annular positioning piece 91. The external fixing strip 94 limits the expansion direction of the sealing airbag 93, thereby increasing its contact area with the bottle mouth 4, and the sealing airbag 93 fits with the outer ends of the bottle mouth 4.

[0079] Furthermore, the upper end surface of the transport seat 1 is provided with a protective pad 60 in contact with the bottle mouth 4 to provide buffer protection for the bottle mouth 4. Figure 1 shown.

[0080] Furthermore, the micro camera 46 transmits the image to an external display in real time.

[0081] Furthermore, a pressure sensor for detecting the blocking force of the airbag is installed in the annular light source seat 50 .

[0082] When the present embodiment is in use, the glass bottles 3 are first placed horizontally on the belt of the conveyor belt 2 in sequence, and the bottle mouths 4 are attached to the protective pads 60 on the side. As the belt is conveyed, the frontmost group of glass bottles 3 is blocked by the curved back faces 73 of the two groups of intermittent material guides 7. The servo motor 15 is started to drive the No. 1 small gear 14 to rotate, and the No. 1 large gear 13 is decelerated through meshing, so that the turning shaft 10 starts to drive the two groups of intermittent material guides 7 to turn counterclockwise by a certain angle (about 90°), so that the height of the curved material receiving surface 71 is not higher than the height of the conveyor belt 2. At this time, the frontmost group of glass bottles 3 slides from the tail end of the belt into the curved material receiving surface 71, and then the servo motor 15 is reversed to cause the two groups of intermittent material guides 7 to turn clockwise back to the initial position through a series of transmissions, and the curved back faces 73 of the material blocking devices are used to block the movement of the next group of glass bottles 3. The glass bottles 3 on the curved material receiving surface 71 slide obliquely along the material guiding plane 72.

[0083] Then the glass bottle 3 leaves the material guide plane 72 and falls into the curved clamping block 38 at the lower position in a parabolic motion path. At this time, the hydraulic cylinder 31 is operated, and the hydraulic control rod 32 is retracted, driving the trapezoidal motion seat 33 to move linearly in the direction of the hydraulic cylinder 31. The sliding rods 34 on both sides of the trapezoidal motion seat 33 slide along the sliding grooves 36 on the two groups of linear displacement inclined blocks 35 respectively, and a pulling force is generated between the two groups, so that the two groups of linear displacement inclined blocks 35 move toward each other along their respective guide grooves 61, and the two groups of curved clamping blocks 38 slowly approach until the glass bottle 3 is clamped up and down by the two groups of curved clamping blocks 38 and is located in the center. At this time, the center of the endoscope rod 44 coincides with the center of the two groups of curved clamping blocks 38 clamping the glass bottle 3.

[0084] At this time, the telescopic control cylinder 42 is started, and the telescopic rod 43 extends outward. On the one hand, the telescopic rod 43 drives the mounting frame 45 on the endoscope rod 44 to directly enter the center position of the bottle mouth 4, so that the micro camera 46 faces the inner wall of the bottle mouth 4. On the other hand, the telescopic rod 43 drives the annular light source seat 50 to move to the outer side of the bottle mouth 4. During the movement of the annular light source seat 50, the compressed air bag 83 on the inner light shielding layer 8 is first squeezed with the outer surface of the bottle mouth 4, generating a force to deform and compress the compressed air bag 83, and the compressed air bag 83 fully fits in the bottle mouth 4. The outer surface of the bottle mouth 4 forms a light-shielding seal on one side of the light source area. As the compressed airbag 83 is compressed, the internal air enters the sealed airbag 93 of the outer light-shielding layer 9 through a plurality of vent pipes 54, causing the sealed airbag 93 to partially expand and elongate (the sealed airbag 93 is located in the area of ​​the outer fixing strip 94 and cannot expand outward due to limitation). Finally, the sealed airbag 93 with the expanded volume is directly sealed at the outer end edge of the bottle mouth 4 (the sealed airbag 93 will not contact the outer surface of the bottle mouth 4 due to its lengthening), forming a light-shielding seal on the other side of the light source area.

[0085] Among them, when the glass bottle 3 is not accurately calibrated or related parts are loose, the center of the endoscope rod 44 and the center of the two sets of curved clamps 38 clamping the glass bottle 3 do not coincide. At this time, during the movement of the annular light source seat 50, the compressed air bag 83 on the inner light shielding layer 8 will have an obvious air bag blocking force when it passes over the outer edge of the bottle mouth 4. The pressure sensor detects the signal and transmits it to the telescopic control cylinder 42, which controls the retraction of the telescopic rod 43.

[0086] The uniform speed motor 28 is started to drive the second small gear 27 to rotate, and the second large gear 26 is decelerated by meshing. The connecting column 24 drives the rotating table 22 to rotate slowly around the large bearing 23, thereby driving the driving outer shell 30 to make a circular motion as a whole. At the same time, the glass bottle 3 between the two groups of curved clamps 38 rotates synchronously. During the rotation, the several groups of lamp beads 53 on the annular light belt 52 emit light to illuminate the interior through the transparent glass layer of the bottle mouth 4. At this time, the fixed micro camera 46 is used to continuously shoot the inner wall of the rotating bottle mouth 4. The micro camera 46 transmits the image to the external display in time to display and check whether there are defects on the inner wall of the bottle mouth 4. This cycle of operation performs automated quality inspection on each group of glass bottles 3.

[0087] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0088] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A bottle mouth endoscopic optical inspection device, comprising a transport base (1), characterized in that: A belt conveyor (2) is installed at the middle position of the upper end surface of the transport seat (1), and glass bottles (3) are arranged in sequence at the upper end of the belt conveyor (2). A turning shaft (10) is horizontally installed at one end of the transport seat (1) near the belt conveyor (2), and two groups of intermittent material guides (7) are symmetrically sleeved in the middle of the turning shaft (10); A workbench (5) is fixedly arranged on one side of the transport seat (1) and below the intermittent material guide (7); one end of the workbench (5) is riveted to a limit outer seat (20); a rotation groove (21) is provided inside the limit outer seat (20); a rotating table (22) is movably arranged inside the rotation groove (21); the outer side of the rotating table (22) is fixed by a large bearing (23) and the inner wall of the rotation groove (21); and one end of the rotating table (22) away from the limit outer seat (20) is welded to a drive outer shell (30) via four sets of angle irons (29); A support frame (40) is fixed to the other end of the workbench (5); the upper end of the support frame (40) is connected to a cylinder seat (41); a telescopic control cylinder (42) is installed in the cylinder seat (41); a telescopic rod (43) is horizontally arranged outward from the inside of the telescopic control cylinder (42); the end edge of the telescopic rod (43) is connected to an annular light source seat (50) via a plurality of groups of connecting rods (51); and the annular light source seat (50) is located around the outer side of the bottle mouth (4) of the glass bottle (3); A connecting column (24) is welded horizontally at the middle position of the end surface of the rotating table (22), and the connecting column (24) is fixed by a third bearing seat (25) and the inner surface of the limiting outer seat (20). A second large gear (26) is sleeved on the connecting column (24), and a second small gear (27) is meshed at the lower end of the second large gear (26). The second small gear (27) is sleeved on the output shaft of a uniform speed motor (28), and the uniform speed motor (28) passes through the outer side surface of the limiting outer seat (20); A hydraulic cylinder (31) is horizontally mounted in the middle position of the end surface of the driving outer shell (30) close to the rotating table (22); a hydraulic control rod (32) on the hydraulic cylinder (31) extends outward from the inside of the hydraulic cylinder (31); a trapezoidal motion seat (33) is welded to the end of the hydraulic control rod (32); the trapezoidal motion seat (33) is located in the middle position inside the driving outer shell (30); sliding rods (34) are mounted on both sides of the trapezoidal motion seat (33); and linear displacement inclined blocks (35) acting on the sliding rods (34) are symmetrically arranged on both sides of the trapezoidal motion seat (33); The inner side surfaces of the two groups of linear displacement inclined blocks (35) are provided with sliding grooves (36), and the inner width grooves (37) for limiting movement of the slide rod (34) are provided inside the sliding grooves (36). Part of the linear displacement inclined blocks (35) extend outside the driving outer shell (30), and the end of the driving outer shell (30) is provided with a guide groove (61) for movement of the linear displacement inclined blocks (35). The end of the linear displacement inclined blocks (35) away from the trapezoidal motion seat (33) is fixed with a curved clamping block (38). The two groups of curved clamping blocks (38) are distributed up and down to clamp the glass bottle (3) horizontally. The lower curved clamping block (38) is located obliquely below the intermittent material guide (7). The inner surfaces of the two groups of curved clamping blocks (38) are provided with anti-slip pads (39), and the single side surface of the lower curved clamping block (38) is provided with a blocking piece (64) for acting on the glass bottle (3); An endoscope rod (44) is welded horizontally at the middle position of the end of the telescopic rod (43); a mounting frame (45) is fixed at the end of the endoscope rod (44) and located inside the annular light source seat (50); the mounting frame (45) extends into the bottle mouth (4) of the glass bottle (3); a miniature camera (46) is mounted outside the mounting frame (45); An annular light strip (52) is installed at the middle position of the inner side surface of the annular light source seat (50), and lamp beads (53) are evenly distributed on the annular light strip (52); an inner shading layer (8) is provided at the edge of the inner side surface of the annular light source seat (50) close to the curved clamping block (38); an outer shading layer (9) is provided at the edge of the inner side surface of the annular light source seat (50) close to the telescopic rod (43); and the inner shading layer (8) and the outer shading layer (9) are connected via a plurality of groups of ventilation pipes (54); The inner light shielding layer (8) comprises a first annular positioning piece (81), a first hollow sleeve (82) and a compressed air bag (83); the first annular positioning piece (81) is fixed inside the annular light source seat (50); the first hollow sleeve (82) is installed on the inner side of the first annular positioning piece (81); the compressed air bag (83) is glued on the inner side of the first hollow sleeve (82); the compressed air bag (83) and the outer surface of the bottle mouth (4) are pressed against each other; The outer light shielding layer (9) comprises a second annular positioning piece (91), a second hollow sleeve (92), a sealing airbag (93) and an external fixing strip (94); the second annular positioning piece (91) is fixed inside the annular light source seat (50); the second hollow sleeve (92) is installed inside the second annular positioning piece (91); the vent pipe (54) communicates with the inside of the first hollow sleeve (82) and the second hollow sleeve (92); the sealing airbag (93) is glued to the inside of the second hollow sleeve (92); the external fixing strip (94) is fixedly arranged on the side of the sealing airbag (93) and on the second annular positioning piece (91); the sealing airbag (93) is in contact with the outer edge of the bottle mouth (4).

2. The bottle mouth endoscopic optical inspection device according to claim 1, characterized in that: One end of the flip shaft (10) is fixed by a first bearing seat (11) and an upper end surface of the transport seat (1), and the other end of the flip shaft (10) is fixed by a second bearing seat (12) and an inner wall of the transport seat (1). A first large gear (13) is sleeved on the position where the flip shaft (10) passes through the second bearing seat (12), and a first small gear (14) is meshed with the lower end of the first large gear (13). The first small gear (14) is sleeved on the output shaft of a servo motor (15). A part of the servo motor (15) passes through the outer side surface of the transport seat (1), and the first large gear (13) and the first small gear (14) are both located inside the transport seat (1).

3. The bottle mouth endoscopic optical inspection device according to claim 2, characterized in that: The intermittent material guide (7) comprises a curved material receiving surface (71), a material guiding plane (72), a curved material blocking back surface (73), a movable groove (74), a buffer block (75) and a buffer spring (76). The inner side of the intermittent material guide (7) is provided with a curved material receiving surface (71) and a material guiding plane (72) for acting on the glass bottle (3) in sequence. The curved material receiving surface (71) and the material guiding plane (72) have a smooth transition. The back side of the intermittent material guide (7) is provided with a curved material blocking back surface (73) for blocking the glass bottle (3). A movable groove (74) is provided in the middle of the curved material blocking back surface (73). A buffer block (75) is movably provided in the movable groove (74). The buffer block (75) is connected to the inner wall of the movable groove (74) through a plurality of groups of buffer springs (76). The buffer block (75) and the glass bottle (3) are in contact with each other.

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