High-speed stable multi-station linear bottle preform inspection machine

Abstract

According to the high-speed stable multi-station linear bottle preform inspection machine provided by the utility model, bottle preforms are sequentially sucked back and conveyed by the first negative pressure conveying belt, clamped and conveyed by the conveying channel of the clamping and conveying mechanism and sucked back and conveyed by the second negative pressure conveying belt; furthermore, the bottle preform can be stably conveyed to a target point in a vertical and flat posture after entering, so that the bottle preform is prevented from shaking and shifting in the conveying process, the imaging stability of a bottle preform image obtained during bottle preform detection is further improved, and the bottle preform detection efficiency and quality are favorably improved. Besides, limiting guide plates are arranged on the two sides of the feeding end of the first negative pressure conveying belt in the conveying direction correspondingly, a formed feeding channel conducts limiting conveying on the entering bottle preforms, then it is guaranteed that the bottle preforms enter and are conveyed at the fixed position of the first negative pressure conveying belt, and the bottle preforms are prevented from deviating or toppling in the conveying process; and a subsequent mechanism can correspondingly receive and convey the bottle preforms conveniently.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of bottle embryo detection, especially to a high-speed stable multi-station linear bottle embryo inspection machine. BACKGROUND

[0002] In the high-speed development, the demand of daily life for various bottles is increasing. Bottle manufacturers are also trying to improve production efficiency and production capacity. The raw material for producing bottles is bottle embryo. Before the bottle embryo is processed into a bottle, the quality of the bottle embryo needs to be detected to avoid the bottle embryo with quality problems from entering the processing flow, affecting production efficiency and wasting productivity. Therefore, in order to improve efficiency, bottle embryo manufacturers add visual detection equipment, bottle embryo visual inspection machine, to the production line.

[0003] In the bottle embryo visual detection equipment, the current market is all using rotary disc inspection machines or belt support inspection machines. The rotary disc structure is complex, difficult to install, and high in cost. Moreover, the centrifugal force of rotation affects the detection state of the bottle embryo, which is easy to cause the bottle embryo to produce radial displacement on the detection station, directly affecting the imaging stability and detection algorithm accuracy. The flexible belt body in the process of starting and stopping causes dynamic tension fluctuation, which leads to periodic shaking of the bottle embryo on the conveying belt, thereby reducing the detection efficiency of the bottle embryo and affecting the detection effect of the bottle embryo.

[0004] Therefore, it is necessary to provide a high-speed stable multi-station linear bottle embryo inspection machine. UTILITY MODEL CONTENT

[0005] Based on the fact that the bottle embryo inspection machine in the prior art cannot meet the actual demand due to the unstable bottle embryo conveying during bottle embryo detection, the utility model provides a high-speed stable multi-station linear bottle embryo inspection machine.

[0006] The application discloses a high-speed stable multi-station linear bottle preform inspection machine, which comprises a first negative pressure conveying mechanism, a clamping conveying mechanism and a second negative pressure conveying mechanism arranged in sequence along a conveying direction; the first negative pressure conveying mechanism comprises a first negative pressure conveying belt arranged along the conveying direction; the feeding end of the first negative pressure conveying belt is provided with a limiting guide plate on both sides along the conveying direction; the relative distance between the limiting guide plates is adjustable, and a feeding channel for the bottle preform to enter the first negative pressure conveying belt is formed between the limiting guide plates, and the feeding channel is located directly below the first negative pressure conveying belt; the clamping conveying mechanism comprises a first conveying structure and a second conveying structure arranged side by side, and a conveying channel for clamping and conveying the bottle preform is formed between the first conveying structure and the second conveying structure; the second negative pressure conveying mechanism comprises a first and second negative pressure conveying belt arranged along the conveying direction; the first negative pressure conveying belt and the second negative pressure conveying belt are used for conveying the bottle preform by negative pressure suction; one end of the conveying channel is located directly below the discharging end of the first negative pressure conveying belt, and the other end is located directly below the feeding end of the second negative pressure conveying belt; a supporting ring detection mechanism, a bottle bottom detection mechanism and a bottle mouth detection mechanism for supporting ring detection, bottle bottom detection and bottle mouth detection of the bottle preform are arranged along the conveying direction on the conveying channel; a bottle body detection mechanism and a bottle mouth thread detection mechanism for bottle body detection and bottle mouth thread detection of the bottle preform are arranged along the conveying direction on the second negative pressure conveying belt.

[0007] Further, the first negative pressure conveying mechanism and the second negative pressure conveying mechanism each further comprise a negative pressure conveying frame and a negative pressure interface fixed on the negative pressure conveying frame, the first negative pressure conveying belt and the second negative pressure conveying belt are arranged on the corresponding negative pressure conveying frame respectively, and a plurality of negative pressure suction holes are uniformly arranged on the first negative pressure conveying belt and the second negative pressure conveying belt, and the negative pressure suction holes are in communication with the corresponding negative pressure interface.

[0008] Further, the first conveying structure and the second conveying structure each comprise a conveying frame and a conveying belt sleeved on the conveying frame, one end of the conveying frame is fixed with a servo motor and a speed reducer, the servo motor and the speed reducer are in driving connection, and the clamping surfaces of the conveying belts of the first conveying structure and the second conveying structure are transversely arranged opposite to each other and form the conveying channel to clamp and convey the bottle preform.

[0009] Further, the application further comprises a bottle preform separation mechanism; the bottle preform separation mechanism comprises two fixed frames arranged on both sides of the first negative pressure conveying mechanism along the conveying direction respectively, a separation motor is arranged on each fixed frame, a separation wheel is rotationally connected to the separation motor, the distance between the two separation wheels is adjustable, a separation channel is formed between the two separation wheels, and the separation channel is located directly below the first negative pressure conveying belt; the separation motor is used for driving the two separation wheels to rotate at a set speed, so that the bottle preforms conveyed by the first negative pressure conveying belt are separated at equal distances in the separation channel.

[0010] Further, the first negative pressure conveying belt is further provided with a support on both sides along the conveying direction, the limiting guide plate is arranged on the support, and a limiting strip is arranged on the support and below the corresponding limiting guide plate and extends to one side of the bottle embryo separation mechanism along the conveying direction; the limiting strips form a limiting channel parallel to the feeding channel.

[0011] Further, the fixing frame comprises a fixing plate arranged on one side of the first negative pressure conveying mechanism along the conveying direction and a mounting plate, the bottle embryo separation motor is arranged on the mounting plate, and the mounting plate is provided with a plurality of screw holes, the fixing plate extends horizontally away from the conveying plane of the first negative pressure conveying belt to form a connecting plate; a plurality of strip-shaped sliding slot holes are sequentially arranged on the connecting plate away from the first negative pressure conveying mechanism, and the connecting plate is screwed through the strip-shaped sliding slot holes and threadedly connected with the corresponding screw holes on the mounting plate.

[0012] Further, the second negative pressure conveying belt is provided at the end with a rejection mechanism, the rejection mechanism comprises a rejection device for rejecting the detected abnormal bottle embryo and a waste collecting hopper for collecting the rejected bottle embryo arranged on both sides of the second negative pressure conveying belt along the conveying direction.

[0013] Further, the support ring detection mechanism, the bottle bottom detection mechanism, and the bottle mouth detection mechanism are sequentially arranged along the conveying direction; the support ring detection mechanism comprises a first area light source arranged below the conveying channel and a first camera and a first aperture area light source arranged above the conveying channel, the first camera is located above the first aperture area light source, and the lens of the first camera is directly opposite the aperture of the first aperture area light source; the bottle bottom detection mechanism comprises a second area light source arranged below the conveying channel and a second camera arranged above the conveying channel; the bottle mouth detection mechanism comprises a light shielding cylinder, a second aperture area light source, and a third camera sequentially arranged above the conveying channel away from the conveying channel, the light shielding cylinder is provided with a small hole corresponding to the aperture of the second aperture area light source, and the lens of the third camera is directly opposite the aperture of the second aperture area light source.

[0014] Further, the bottle body detection mechanism comprises a front bottle body detection mechanism and a side bottle body detection mechanism; the front bottle body detection mechanism comprises a fourth camera, a fifth camera and a third surface light source which are sequentially arranged along the conveying direction, and the fourth camera, the fifth camera and the third surface light source are located on one side of the second negative pressure conveying belt; the lenses of the fourth camera and the fifth camera are directed to form an included angle; the side bottle body detection mechanism comprises a fourth surface light source, a sixth camera and a seventh camera which are sequentially arranged along the conveying direction, and the sixth camera, the seventh camera and the fourth surface light source are located on the other side of the second negative pressure conveying belt; the lenses of the sixth camera and the seventh camera are directed to form an included angle, and the fourth camera and the fifth camera are oppositely arranged with the fourth surface light source; the sixth camera and the seventh camera are oppositely arranged with the third surface light source; the bottle mouth thread detection mechanism comprises a front bottle mouth thread detection mechanism and a side bottle mouth thread detection mechanism which are arranged on both sides of the conveying direction; the front bottle mouth thread detection mechanism comprises an eighth camera and a ninth camera which are arranged above the fourth camera and the fifth camera respectively, and the side bottle mouth thread detection mechanism comprises a tenth camera and an eleventh camera which are arranged above the sixth camera and the seventh camera.

[0015] Further, a collecting box for collecting the falling bottle embryo is arranged below the end of the conveying channel.

[0016] The utility model discloses a kind of high-speed stable multi-station straight-line bottle embryo inspection machines, by sequentially by first negative pressure conveying belt suction conveying, the transmission channel clamping of clamping conveying mechanism clamping transmission and the suction conveying of second negative pressure conveying belt, further so that bottle embryo enters after can keep straight and even posture Stable delivery to target point, ensure that bottle embryo does not occur in the conveying process Shaking and displacement, further improve the imaging stability of bottle embryo image when bottle embryo detection, it is beneficial to improve the efficiency and quality of bottle embryo detection.

[0017] Meanwhile, the support ring detection mechanism, the bottle bottom detection mechanism and the bottle mouth detection mechanism for supporting ring, bottle bottom and bottle mouth detection of bottle embryo are arranged along the conveying direction on the conveying channel; the bottle body detection mechanism and the bottle mouth thread detection mechanism for bottle body and bottle mouth detection of bottle embryo are arranged along the conveying direction on the second negative pressure conveying belt, so that the bottle embryo is detected in all directions, and the bottle embryo with defects is screened out.

[0018] In addition, the limiting guide plates are arranged on both sides of the feeding end of the first negative pressure conveying belt along the conveying direction, forming a feeding channel for limiting the transmission of the entering bottle embryo, so as to ensure that the bottle embryo enters and is conveyed at a fixed position of the first negative pressure conveying belt, prevent the bottle embryo from deviating or falling during conveying, and facilitate the corresponding receiving and transmission of the bottle embryo by the subsequent mechanism. BRIEF DESCRIPTION OF DRAWINGS

[0019] Figure 1 A stereoscopic structure schematic diagram of a high-speed stable multi-station linear bottle blank inspection machine is provided in the utility model;

[0020] Figure 2 For Figure 1 The enlarged structure schematic diagram of A part of the utility model is provided.

[0021] Figure 3 The structure schematic diagram of the first negative pressure conveying mechanism is provided in the utility model.

[0022] Figure 4 The side structure schematic diagram of the multi-bottle blank separation mechanism is provided in the utility model.

[0023] Figure 5 The overhead structure schematic diagram of the multi-bottle blank separation mechanism is provided in the utility model.

[0024] The drawing mark

[0025] 0, bottle blank; 1, first negative pressure conveying mechanism; 11, first negative pressure conveying belt; 12, limiting guide plate; 13, feeding channel; 14, support; 15, limiting strip; 2, clamping conveying mechanism; 21, first conveying structure; 22, second conveying structure; 23, conveying channel; 3, second negative pressure conveying mechanism; 31, second negative pressure conveying belt; 32, negative pressure conveying frame; 33, negative pressure interface; 34, negative pressure suction hole; 4, bottle blank separation mechanism; 41, fixing frame; 42, separation motor; 43, separation wheel; 44, separation channel; 45, fixed plate; 46, mounting plate; 47, screw hole; 48, connecting plate; 49, strip-shaped sliding slot hole; 5, support ring detection mechanism; 51, first surface light source; 52, first open hole surface light source; 53, first camera; 6, bottle bottom detection mechanism; 61, second surface light source; 62, second camera; 7, bottle mouth detection mechanism; 71, light cylinder; 72, second open hole surface light source; 73, third camera; 8, bottle body detection mechanism; fourth camera; fifth camera; 81, third surface light source; 82, fourth surface light source; 9, bottle mouth thread detection; 10, rejection mechanism; 101, rejection device; 102, waste collecting hopper; 16, collecting box. DETAILED DESCRIPTION

[0026] In order to further detail the utility model, the following will be described in conjunction with the drawings. It is particularly pointed out that the embodiments described below are only a part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by the ordinary skilled in the art without creative labor belong to the scope of protection of the utility model.

[0027] Reference Figure 1As shown in the drawings, a high-speed stable multi-station linear bottle preform inspection machine comprises a first negative pressure conveying mechanism 1, a clamping conveying mechanism 2 and a second negative pressure conveying mechanism 3 arranged in sequence along the conveying direction.

[0028] Specifically, referring to Figure 1 and Figure 3 As shown in the drawings, the first negative pressure conveying belt 1 comprises a first negative pressure conveying belt 11 arranged along the conveying direction; the feeding end of the first negative pressure conveying belt 11 is provided with a limiting guide plate 12 on both sides along the conveying direction; the relative distance between the limiting guide plates 12 is adjustable, and a feeding channel 13 for the bottle preform to enter the first negative pressure conveying belt 11 is formed between the limiting guide plates 12, which is located directly below the first negative pressure conveying belt 11.

[0029] By arranging the limiting guide plates 12 on both sides along the conveying direction, the feeding channel 13 formed thereby effectively constrains the bottle preform 0, thereby ensuring that the bottle preform 0 enters and is transmitted at a fixed position of the first negative pressure conveying belt 11, preventing it from deviating or toppling during conveying, and facilitating the corresponding receiving and transmission of the bottle preform 0 by subsequent mechanisms. In this embodiment, the limiting guide plates 12 are symmetrical along the central axis of the conveying direction of the first negative pressure conveying belt 11, so that the bottle preform 0 is transmitted at the center of the bottom surface of the first negative pressure conveying belt 11. By adjusting the relative distance of the limiting guide plates 12, different sizes and specifications of bottle preforms 0 can be conveyed, improving the versatility and flexibility of the equipment.

[0030] The clamping conveying mechanism 2 comprises first and second conveying structures 21 and 22 arranged side by side, and a conveying channel 23 for clamping and conveying the bottle preform 0 is formed between the first and second conveying structures 21 and 22. The second negative pressure conveying mechanism 3 comprises a first negative pressure conveying belt 31 arranged along the conveying direction. The first and second negative pressure conveying belts 11 and 31 are both used for siphon conveying of the bottle preform 0; one end of the conveying channel 23 is located directly below the discharge end of the first negative pressure conveying belt 11, and the other end is located directly below the feeding end of the second negative pressure conveying belt 31.

[0031] The first and second negative pressure conveying mechanisms 1 and 3 each further comprise a negative pressure conveying frame 32 and a negative pressure interface 33 fixed to the negative pressure conveying frame 32; the first and second negative pressure conveying belts 11 and 31 are arranged on the corresponding negative pressure conveying frames 32, respectively, and a plurality of negative pressure suction holes 34 are uniformly arranged on the first and second negative pressure conveying belts 11 and 31; the negative pressure suction holes 34 are in communication with the corresponding negative pressure interfaces 33.

[0032] Specifically, the negative pressure interface 33 can be connected with a negative pressure fan, and the negative pressure generated by the negative pressure fan is connected with the negative pressure suction holes 34 on the first negative pressure conveying belt 11 through the negative pressure interface 33 to form a certain suction force. The negative pressure suction holes 34 stably adsorb the bottle embryo 0 on the bottom of the first negative pressure conveying belt 11 or the second negative pressure conveying belt 31 and convey the bottle embryo 0 along with the movement of the first negative pressure conveying belt 11 or the second negative pressure conveying belt 31, avoiding the bottle embryo deviation, shaking, tilting or damage caused by traditional mechanical clamping or rolling friction, ensuring that the bottle embryo does not shake and keeps a stable posture for stable conveying, which significantly improves the conveying stability. At the same time, by adjusting the negative pressure intensity, different materials, shapes and sizes of bottle embryo 0 can be flexibly adapted, and the universality of the equipment is enhanced.

[0033] In the process of reaching the discharge end of the first negative pressure conveying belt 11, the bottle embryo 0 gradually enters the conveying channel 23 located directly below; when the bottle embryo enters the conveying channel 23, the first conveying structure 22 and the second conveying structure 23 clamp the bottle embryo 0 and transfer the bottle embryo 0 from the first negative pressure conveying belt 11 to the clamping conveying mechanism 2 for conveying, and the conveying is performed until the second negative pressure conveying belt 31 is located directly below the feeding end of the second negative pressure conveying belt 31, at which time the second negative pressure conveying belt 31 transfers and conveys the bottle embryo 0 at the end of the conveying channel 23 to the second negative pressure conveying belt 31 for reverse suction transmission;

[0034] During the reverse suction transmission and clamping conveying process, the bottle embryo 0 does not shake and shift, and can be stably conveyed according to the entering position, avoiding affecting the imaging stability of obtaining the bottle embryo image during detection, which is beneficial to improve the efficiency and quality of bottle embryo detection.

[0035] The first conveying structure 21 and the second conveying structure 22 each include a conveying frame and a conveying belt sleeved on the conveying frame, and one end of the conveying frame is fixed with a servo motor and a speed reducer, the servo motor and the speed reducer are drivingly connected, and the clamping surfaces of the conveying belts of the first conveying structure 21 and the second conveying structure 22 are transversely arranged towards each other and form the conveying channel 230 to clamp and convey the bottle embryo 0.

[0036] Reference Figure 3 , Figure 4 , Figure 5As shown, in some embodiments, the inspection machine further comprises a bottle embryo separation mechanism 4; the bottle embryo separation mechanism 4 comprises two fixed frames 41 respectively arranged on both sides of the first negative pressure conveying mechanism 1 along the conveying direction, specifically, the fixed frames 41 are respectively arranged on both sides of the negative pressure conveying frame 11 along the conveying direction, a bottle embryo separating motor 42 is arranged on each of the fixed frames 41, a bottle embryo separating wheel 43 is rotatably connected to the bottle embryo separating motor 42, the distance between the two bottle embryo separating wheels 43 is adjustable, and a bottle embryo separating channel 44 is formed between the two bottle embryo separating wheels 43, and the bottle embryo separating channel 44 is located directly below the first negative pressure conveying belt 11; the bottle embryo separating motor 42 is used to drive the two bottle embryo separating wheels 43 to rotate at a set speed, so as to separate the bottle embryo 0 conveyed by the first negative pressure conveying belt 11 into the bottle embryo separating channel 44 at equal distances.

[0037] In the embodiment, the rotating speed of the bottle embryo separating motor 42 is adjustable; by adjusting the rotating speed of the bottle embryo separating motor 32, the rotating speed of the bottle embryo separating wheel 33 is less than that of the negative pressure conveying belt 12, so that the negative pressure conveying belt 12 can overcome the resistance brought by the bottle embryo separating wheel 33 to the transmission of the bottle embryo 0, and drive the bottle embryo 0 to pass through the bottle embryo separating channel 34 between the bottle embryo separating wheels 33 for bottle embryo separation. The bottle embryo separating wheel 43 is a PU wheel. The PU wheel has excellent elasticity, wear resistance and strong grip, and can ensure stable friction to drive the bottle embryo 0 to separate and transmit. The two bottle embryo separating wheels 43 are arranged side by side below the first negative pressure conveying belt 11 along the conveying direction, so that the separation and transmission of the bottle embryo 0 are more stable.

[0038] When the two bottle embryo separating wheels 43 rotate synchronously, a periodic shear field is formed in the bottle embryo separating channel 44. When the bottle embryo falls freely from the negative pressure conveying belt to the bottle embryo separating channel 44, the bottle embryo is simultaneously subjected to friction forces in opposite directions on both sides, and the rotating bottle embryo separating wheel 43 makes the bottle embryo 0 have a rotating tendency in the channel and pushes the bottle embryo 0 to move towards the outlet of the bottle embryo separating channel 44. The linear speed of the negative pressure conveying belt 12 and the linear speed of the edge of the bottle embryo separating wheel 43 need to satisfy a certain proportional relationship. When the rotating speed of the bottle embryo separating wheel 43 matches the speed of the conveying belt, the residence time of the bottle embryo 0 in the bottle embryo separating channel 44 is accurately controlled, so that the equal-distance separation of the transmission of the bottle embryo 0 can be realized.

[0039] The two bottle embryo separating wheels 43 are driven by the bottle embryo separating motor 42 to rotate at a preset speed, and the rotating speed matches the speed of the negative pressure conveying belt 12, so that after the bottle embryo 0 enters the bottle embryo separating channel 44, the bottle embryo separating wheel 43 can comb the continuously conveyed bottle embryo 0 one by one into equal-distance arrangement through friction, so that the distance between the front and rear bottle embryo 0 in the subsequent conveying process is equal, thereby meeting the requirements of visual detection and further improving the efficiency and quality of bottle embryo detection.

[0040] The fixed frame 41 includes a fixed plate 45 and a mounting plate 46, the embryo separating motor 42 is mounted on the mounting plate 46, and the mounting plate 46 is provided with a plurality of screw holes 47, and the fixed plate 45 extends horizontally away from the conveying plane of the first negative pressure conveying belt 11 to form a connecting plate 48; a plurality of strip-shaped sliding groove holes 49 are sequentially arranged on the connecting plate 48 away from the first negative pressure conveying mechanism 1, and the connecting plate 48 is fixed in different positions by screws passing through the strip-shaped sliding groove holes 49 and being screwed with the corresponding screw holes 47 on the mounting plate 46.

[0041] The strip-shaped sliding groove holes 49 on the connecting plate 48 allow the screws to slide in the sliding grooves and be fixed in different positions, so that the relative position between the connecting plate 48 and the mounting plate 46 can be finely adjusted. Since the connecting plate 48 is formed by the fixed plate 45 extending horizontally away from the conveying plane of the first negative pressure conveying mechanism 1, the distance between the embryo separating motor 42 and the first negative pressure conveying mechanism 1 can be adjusted, that is, the distance between the embryo separating wheels 43 can be adjusted to adapt to bottle embryos 0 of different sizes and specifications.

[0042] In some embodiments, the first negative pressure conveying belt 11 is further provided with a support 14 on both sides in the conveying direction, the limiting guide plates 12 are arranged on the supports 14, and the supports 14 are further provided with a limiting strip 15, the limiting strip 15 is arranged directly below the corresponding limiting guide plate 12 and extends to the side of the bottle embryo separating mechanism in the conveying direction; the limiting strips 15 form a limiting channel parallel to the feeding channel 13 (not shown in the figure).

[0043] The distance between the limiting guide plates 12 can be adjusted by adjusting the relative position of the supports 14, or the distance between the limiting guide plates 12 can be directly adjusted, so as to adjust the size of the feeding channel 13 to adapt to more specifications of bottle embryos. Through the arrangement of the limiting strips 15, the bottle embryos 0 entering the first negative pressure conveying belt 11 are further precisely positioned and transmitted to the bottle embryo separating mechanism 3, and the alignment of the bottle embryos 0 during feeding is facilitated, and the accuracy of the feeding position of the bottle embryos 0 is improved.

[0044] Reference Figure 1 and Figure 2 As shown in the figures, the conveying channel 23 is provided with a support ring detection mechanism 5, a bottle bottom detection mechanism 6 and a bottle mouth detection mechanism 7 for detecting the support ring, the bottle bottom and the bottle mouth of the bottle embryo 0 in the conveying direction, respectively; and the second negative pressure conveying belt 31 is provided with a bottle body detection mechanism 8 and a bottle mouth thread detection mechanism 9 for detecting the bottle body and the bottle mouth of the bottle embryo 0 in the conveying direction, respectively.

[0045] The support ring detection mechanism 5, the bottle bottom detection mechanism 6 and the bottle mouth detection mechanism 7 are sequentially arranged along the conveying direction; the support ring detection mechanism 5 is used for detecting whether the support ring of the bottle blank 0 is defective or the like, and comprises a first surface light source 51 arranged directly below the conveying channel 23 and a first open surface light source 52 and a first camera 53 arranged directly above the conveying channel 23, the first camera 53 is located above the first open surface light source 52, and the lens of the first camera 53 is directly opposite the opening of the first open surface light source 52.

[0046] The bottle bottom detection mechanism 6 is used for detecting whether the bottle bottom of the bottle blank 0 is damaged, contains foreign matter or the like, and comprises a second surface light source 61 arranged directly below the conveying channel 23 and a second camera 62 arranged directly above the conveying channel 23.

[0047] The bottle mouth detection mechanism 7 is used for detecting and screening out bottle blanks 0 with defects such as blank mouth material shortage, blank mouth dirt, blank mouth burr, blank mouth penetration and blank mouth ovality, and comprises a light shielding cylinder 71, a second open surface light source 72 and a third camera 73 sequentially arranged in the direction away from the conveying channel 23 and directly above the conveying channel 23, the light shielding cylinder 71 is provided with a small hole corresponding to the opening of the second open surface light source 72, and the lens of the third camera 73 is directly opposite the opening of the second open surface light source 72.

[0048] The bottle body detection mechanism 8 comprises a front bottle body detection mechanism and a side bottle body detection mechanism, which are respectively used for visual detection of the front and side of the bottle body, so as to screen out bottle blanks 0 with problems such as blank body dirt, blank body deformation, blank body scratch, blank body bubble, blank body color difference and blank body hole.

[0049] The front bottle body detection mechanism comprises a fourth camera, a fifth camera and a third surface light source 81 sequentially arranged along the conveying direction, and the fourth camera, the fifth camera and the third surface light source 81 are located on one side of the second negative pressure conveying belt 31; the lenses of the fourth camera and the fifth camera are directed to form an included angle. The side bottle body detection mechanism comprises a fourth surface light source 82, a sixth camera and a seventh camera sequentially arranged along the conveying direction, and the fourth surface light source 82, the sixth camera and the seventh camera are located on the other side of the second negative pressure conveying belt 31; the lenses of the sixth camera and the seventh camera are directed to form an included angle, and the fourth camera and the fifth camera are oppositely arranged with the fourth surface light source 82; the sixth camera and the seventh camera are oppositely arranged with the third surface light source 81. Through the arrangement of the fourth camera, the fifth camera, the sixth camera and the seventh camera, multi-angle image acquisition of the bottle body is realized, and then omnibearing detection of the bottle body detection is realized, and the accuracy of detection is improved.

[0050] The bottle mouth thread detection mechanism 9 comprises a front bottle mouth thread detection mechanism and a side bottle mouth thread detection mechanism arranged on both sides of the conveying direction, which are used for visual detection of the front and side of the bottle mouth thread respectively, so as to screen out the bottle preform 0 including problems such as broken thread and dirty thread. The front bottle mouth thread detection mechanism comprises an eighth camera and a ninth camera arranged above the fourth camera and the fifth camera respectively, and the side bottle mouth thread detection mechanism comprises a tenth camera and an eleventh camera arranged above the sixth camera and the seventh camera. The bottle mouth thread detection mechanism 9 shares the third surface light source 81 and the fourth surface light source 82 with the bottle body detection mechanism 8. Through the arrangement of the eighth camera, the ninth camera, the tenth camera and the eleventh camera, multi-angle image acquisition of the bottle mouth thread is realized, and then omnibearing detection of the bottle mouth thread detection is realized, and the accuracy of detection is improved.

[0051] The second negative pressure conveying belt 31 is provided with a rejection mechanism 10 at the end, the rejection mechanism 10 comprises a rejection device 101 and a waste collecting bin 102 for collecting the rejected bottle preform, which are arranged on both sides of the second negative pressure conveying belt 31 along the conveying direction and used for rejecting the bottle preform 0 with detection abnormalities. When the bottle preform 0 with abnormalities after detection is conveyed to the second negative pressure conveying belt 31 in front of the rejection device 101, the rejection device 101 pushes the bottle preform 0 into the waste collecting bin 102, and the rejection of the unqualified bottle preform 0 is completed.

[0052] The lower end of the conveying channel 23 is provided with a collecting box 16 for collecting the falling bottle preform 0, which is used for collecting the bottle preform 0 accidentally falling when the bottle preform 0 on the conveying channel 23 is transferred to the second negative pressure conveying belt 31.

[0053] The working principle of the utility model is as follows: the bottle preform 0 is conveyed through the first negative pressure conveying belt 11, the conveying channel 23 and the second negative pressure conveying belt 31 in sequence, the bottle preform 0 enters the first negative pressure conveying belt 11 through the feeding channel 42, is stably adsorbed at the bottom of the first negative pressure conveying belt 11 by the negative pressure suction hole of the first negative pressure conveying belt 11, is conveyed along with the movement of the first negative pressure conveying belt 3, and enters the separating channel 44, at this time, the first negative pressure conveying belt 3 drives the bottle preform 0 to convey, the separating motor 42 drives the two separating wheels 43 to rotate at a preset speed at the same time, the bottle preform 0 in the separating channel 44 is separated and output one by one, and the front and back distances of the bottle preform 0 on the first negative pressure conveying belt 3 are equal, and the bottle preform 0 is conveyed to the conveying channel 23 at equal intervals, and then is conveyed to the end of the conveying channel 23 by the conveying channel 23, at this time, the second negative pressure conveying belt 31 negatively adsorbs the bottle preform 0 in the conveying channel 23, and transfers the bottle preform 0 to the second negative pressure conveying belt 31 to continue conveying.

[0054] The detection mechanism detects the supporting ring, the bottle bottom and the bottle mouth of the bottle embryo 0 in sequence during the conveying of the bottle embryo 0 in the conveying channel 23, detects the bottle body and the bottle mouth thread of the bottle embryo 0 in sequence during the conveying of the bottle embryo 0 on the second negative pressure conveying belt 32, and pushes the bottle embryo 0 with defects screened out by the detection mechanism into the waste hopper 102 by the rejection device 101 after the detection is completed, so that the rejection of the unqualified bottle embryo 0 is completed.

[0055] The preferred embodiments of the utility model disclosed above are only used for helping to set forth the utility model, and do not limit the utility model to the specific embodiments described. Obviously, according to the content of the specification, other modifications and changes can be made. The embodiments selected and specifically described in the specification are for better explaining the principle and practical application of the utility model, so that the person skilled in the art can well understand and utilize the utility model, and are not a limitation on the utility model, and any scheme simply transformed from the utility model belongs to the protection scope of the utility model.

Claims

1. A high speed stable multi-station linear bottle preform inspection machine characterized by, The first negative pressure conveying mechanism, the clamping conveying mechanism and the second negative pressure conveying mechanism are sequentially arranged along the conveying direction. The first negative pressure conveying mechanism comprises a first negative pressure conveying belt arranged along the conveying direction; the feeding end of the first negative pressure conveying belt is provided with a limiting guide plate on both sides along the conveying direction; the relative distance between the limiting guide plates is adjustable, and a feeding channel for the bottle embryo to enter the first negative pressure conveying belt is formed between the limiting guide plates, which is located directly below the first negative pressure conveying belt; The clamping conveying mechanism comprises a first conveying structure and a second conveying structure arranged side by side, and a conveying channel for clamping and conveying the bottle embryo is formed between the first conveying structure and the second conveying structure; the second negative pressure conveying mechanism comprises a first and second negative pressure conveying belt arranged along the conveying direction. The first negative pressure conveying belt and the second negative pressure conveying belt are used for inverted suction conveying of the bottle embryo; one end of the conveying channel is located directly below the discharge end of the first negative pressure conveying belt, and the other end is located directly below the feeding end of the second negative pressure conveying belt; Support ring detection mechanism, bottle bottom detection mechanism and bottle mouth detection mechanism for supporting ring, bottle bottom and bottle mouth detection of the bottle embryo along the conveying direction are arranged on the conveying channel; bottle body detection mechanism and bottle mouth thread detection mechanism for bottle body and bottle mouth detection of the bottle embryo are arranged on the second negative pressure conveying belt along the conveying direction.

2. A high speed stable multi-station linear bottle preform inspection machine according to claim 1, characterized in that, The first negative pressure conveying mechanism and the second negative pressure conveying mechanism each further comprise a negative pressure conveying frame and a negative pressure interface fixed on the negative pressure conveying frame; the first negative pressure conveying belt and the second negative pressure conveying belt are arranged on the corresponding negative pressure conveying frame respectively, and a plurality of negative pressure suction holes are uniformly arranged on the first negative pressure conveying belt and the second negative pressure conveying belt; the negative pressure suction holes are in communication with the corresponding negative pressure interface.

3. The high speed stable multi-station linear bottle preform inspection machine according to claim 1, wherein, The first conveying structure and the second conveying structure each comprise a conveying frame and a conveying belt sleeved on the conveying frame; one end of the conveying frame is fixed with a servo motor and a speed reducer; the servo motor and the speed reducer are in transmission connection; and the clamping surfaces of the conveying belts of the first conveying structure and the second conveying structure are transversely arranged opposite to each other and form the conveying channel to clamp and convey the bottle embryo.

4. The high speed stable multi-station linear bottle preform inspection machine according to claim 1, wherein, A bottle embryo separation mechanism is further included; the bottle embryo separation mechanism comprises two fixed frames arranged on both sides of the first negative pressure conveying mechanism along the conveying direction; a separation motor is arranged on each fixed frame; a separation wheel is rotatably connected to the separation motor; the distance between the two separation wheels is adjustable; a separation channel is formed between the two separation wheels; and the separation channel is located directly below the first negative pressure conveying belt; the separation motor is used to drive the two separation wheels to rotate at a set speed, thereby equally separating the bottle embryo conveyed by the first negative pressure conveying belt into the separation channel.

5. A high speed stable multi-station linear bottle preform inspection machine according to claim 4, characterized in that, Support frames are further arranged on both sides of the first negative pressure conveying belt along the conveying direction; the limiting guide plates are arranged on the support frames; a limiting strip is further arranged on each support frame; the limiting strip is arranged directly below the corresponding limiting guide plate and extends to one side of the bottle embryo separation mechanism along the conveying direction; a limiting channel parallel to the feeding channel is formed between the limiting strips.

6. A high speed stable multi-station linear bottle preform inspection machine as claimed in claim 4, wherein, The fixed frame comprises a fixed plate and a mounting plate, the mounting plate is mounted on the first negative pressure conveying mechanism, and the embryo separating motor is mounted on the mounting plate, and the mounting plate is provided with a plurality of screw holes, and the fixed plate extends horizontally away from the conveying plane of the first negative pressure conveying belt to form a connecting plate; a plurality of strip-shaped sliding slot holes are sequentially arranged on the connecting plate away from the first negative pressure conveying mechanism, and the connecting plate is screwed through the strip-shaped sliding slot holes and is threadedly connected with the corresponding screw holes on the mounting plate.

7. The high speed stable multi-station linear bottle preform inspection machine of claim 1, wherein, The second negative pressure conveying belt is provided with a rejection mechanism at the end thereof, the rejection mechanism comprises a rejection device arranged on both sides of the second negative pressure conveying belt along the conveying direction and used for rejecting the detected abnormal bottle embryo and a waste collecting bin used for collecting the rejected bottle embryo.

8. The high speed stable multi-station linear bottle preform inspection machine of claim 1, wherein, The support ring detection mechanism, the bottle bottom detection mechanism and the bottle mouth detection mechanism are sequentially arranged along the conveying direction; the support ring detection mechanism comprises a first surface light source arranged directly below the conveying channel and a first aperture surface light source and a first camera arranged directly above the conveying channel, the first camera is located above the first aperture surface light source, and the lens of the first camera is directly opposite the aperture of the first aperture surface light source; The bottle bottom detection mechanism comprises a second surface light source arranged directly below the conveying channel and a second camera arranged directly above the conveying channel; the bottle mouth detection mechanism comprises a light shielding cylinder, a second aperture surface light source and a third camera sequentially arranged above the conveying channel away from the conveying channel, the light shielding cylinder is provided with a small hole corresponding to the aperture of the second aperture surface light source, and the lens of the third camera is directly opposite the aperture of the second aperture surface light source.

9. The high speed stable multi-station linear bottle preform inspection machine of claim 1, wherein, The bottle body detection mechanism comprises a front bottle body detection mechanism and a side bottle body detection mechanism; The front bottle body detection mechanism comprises a fourth camera, a fifth camera and a third surface light source sequentially arranged along the conveying direction, and the fourth camera, the fifth camera and the third surface light source are located on one side of the second negative pressure conveying belt; the lenses of the fourth camera and the fifth camera are directed to form an included angle; The side bottle body detection mechanism comprises a fourth surface light source, a sixth camera and a seventh camera sequentially arranged along the conveying direction, and the sixth camera, the seventh camera and the fourth surface light source are located on the other side of the second negative pressure conveying belt; the lenses of the sixth camera and the seventh camera are directed to form an included angle, and the fourth camera and the fifth camera are arranged opposite to the fourth surface light source; the sixth camera and the seventh camera are arranged opposite to the third surface light source; The bottle mouth thread detection mechanism comprises a front bottle mouth thread detection mechanism and a side bottle mouth thread detection mechanism arranged on both sides along the conveying direction; The front bottle mouth thread detection mechanism comprises an eighth camera and a ninth camera arranged above the fourth camera and the fifth camera respectively, and the side bottle mouth thread detection mechanism comprises a tenth camera and an eleventh camera arranged above the sixth camera and the seventh camera.

10. The high speed stable multi-station linear bottle preform inspection machine of claim 1, wherein, A collecting box for collecting the fallen bottle embryo is arranged below the end of the conveying channel.

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