Bottle preform detection device and bottle preform detection method

Abstract

The invention discloses a bottle preform detection device and a bottle preform detection method. The bottle preform detection device comprises a first conveying mechanism, a first detection mechanism, a second conveying mechanism and a second detection mechanism, the first conveying mechanism comprises a first body, at least part of a bottle body of a bottle preform is arranged in the first body, the bottle preform can move in the length direction of the first body, and a first detection station is arranged on the first body; the first detection mechanism is arranged on one side of the first detection station and is used for being opposite to a bottle opening of the bottle preform so as to detect at least one of the bottle opening, the bottle neck and the bottle liner of the bottle preform; the second conveying mechanism comprises a second body and a vacuum adsorption part arranged on the second body, the vacuum adsorption part can be attached to a bottle opening of the bottle preform and adsorb the bottle preform so as to transfer the bottle preform from the first conveying mechanism to the second conveying mechanism, and the second conveying mechanism is provided with a second detection station; the second detection mechanisms are arranged on the two sides of the second detection station and used for detecting the bottle bodies of the bottle blanks.

Description

Technical Field

[0001] The present application relates to the technical field of bottle preform detection, and in particular to a bottle preform detection device and a bottle preform detection method. Background Art

[0002] In the preform preparation process, the preform needs to be inspected to ensure its quality. In the related art, the preform inspection device includes a positioning conveying device and an image acquisition and recognition system. The positioning conveying device includes a conveyor belt and a plurality of positioning seats installed on the conveyor belt. The positioning seats are provided with positioning grooves for placing the preforms. The image acquisition and recognition system is mounted above the positioning conveying device to detect the preforms in the positioning grooves. Since the preforms are placed in the positioning grooves, the image acquisition and recognition system cannot perform a comprehensive inspection of the body of the preforms, resulting in poor inspection quality. Summary of the invention

[0003] The present application aims to solve at least one of the above technical problems in the prior art to a certain extent. To this end, an embodiment of the present application provides a preform detection device.

[0004] The embodiment of the present application also provides a preform detection method.

[0005] The preform detection device provided by the present application includes: a first conveying mechanism including a first body, in which at least a part of the body of the preform is arranged, and the preform is movable along the length direction of the first body, and a first detection station is arranged on the first body; a first detection mechanism is arranged on one side of the first detection station, and is used to be opposite to the bottle mouth of the preform, so as to detect at least one of the bottle mouth, the bottleneck and the bottle liner of the preform; a second conveying mechanism including a second body and a vacuum suction piece arranged on the second body, the vacuum suction piece is movable along the length direction of the second body, at least a part of the second body is opposite to the first body, so that the vacuum suction piece can be attached to the bottle mouth of the preform and absorb the preform, so as to transfer the preform from the first conveying mechanism to the second conveying mechanism, and the second conveying mechanism is provided with a second detection station; a second detection mechanism is arranged on both sides of the second detection station, and is used to detect the body of the preform.

[0006] Based on the above technical solution, the embodiment of the present application has at least the following beneficial effects: when the preform moves to the first inspection station along the length direction of the first body of the first conveying mechanism, the first inspection mechanism can inspect at least one of the bottle mouth, bottle neck and bottle liner of the preform; the vacuum adsorbent of the second conveying mechanism can transfer the preform from the first conveying mechanism to the second conveying mechanism, and when the preform moves to the second inspection station along the length direction of the second body of the second conveying mechanism with the vacuum adsorbent, since the vacuum adsorbent adsorbs the preform by fitting with the bottle mouth, the second inspection mechanism can perform a comprehensive inspection on the bottle body, thereby improving the inspection quality. In the embodiment of the present application, by switching the conveying mechanism, the switching of the conveying mode is realized, so that different parts of the preform can be inspected, and there is no need to repeat multiple inspection processes to discharge unqualified preforms, which can improve the inspection efficiency while ensuring the inspection effect.

[0007] According to some embodiments of the present application, the first body includes a slide groove arranged along the length direction thereof, the bottle blank is movably suspended in the slide groove, the slide groove has a first head end and a first end, the first inspection station is arranged between the first head end and the first end, the second body has a second head end and a second end, the second inspection station is arranged between the second head end and the second end, and the first end is opposite to the second head end.

[0008] According to some embodiments of the present application, the first body includes an elastic suspended section, the first end of the slide groove is arranged on the elastic suspended section, when the bottle preform moves to the first end along the length direction of the slide groove, the elastic suspended section passes through the bottle preform and is squeezed by the vacuum suction component, and generates a rebound force, and the rebound force is used to make the bottle mouth of the bottle preform fit the vacuum suction component so that the vacuum suction component can adsorb the bottle preform.

[0009] According to some embodiments of the present application, the first conveying mechanism further includes a first driving mechanism, and the first driving mechanism is used to drive the preform to move along the length direction of the slide groove.

[0010] According to some embodiments of the present application, the first driving mechanism includes two conveyor belts, which are respectively arranged on both sides of the slide slot, and the two conveyor belts are used to clamp the bottle preform in the slide slot and drive the bottle preform to move along the length direction of the slide slot.

[0011] According to some embodiments of the present application, the preform detection device further includes a shaping mechanism, which is disposed between the first head end and the first detection station, and is used to adjust the state of the preform in the chute.

[0012] According to some embodiments of the present application, the preform detection device further includes a rejection mechanism, which is disposed between the second detection station and the second end, and the first detection mechanism and the second detection mechanism are both electrically connected to the rejection mechanism, and the rejection mechanism is used to reject the preform that fails the detection.

[0013] According to some embodiments of the present application, the preform detection device further includes a collecting mechanism, which is disposed near the second end of the second body and is used to receive the qualified preforms output by the second conveying mechanism.

[0014] According to some embodiments of the present application, the second detection mechanism includes two detection modules, and the two detection modules are respectively arranged on both sides of the second detection station to perform a 360° circumferential detection on the bottle body of the preform.

[0015] The preform detection method provided by the present application comprises the following steps: when the preform moves to a first detection station along the length direction of a first body of a first conveying mechanism, the first detection mechanism detects at least one of a bottle mouth, a bottle neck and a bottle liner of the preform;

[0016] The vacuum suction piece of the second conveying mechanism is attached to the bottle mouth of the bottle preform and sucks the bottle preform to transfer the bottle preform from the first conveying mechanism to the second conveying mechanism. When the bottle preform moves to the second inspection station with the vacuum suction piece, the second inspection mechanism inspects the bottle body of the bottle preform;

[0017] If both the first detection mechanism and the second detection mechanism detect that the preform is qualified, the preform is transported to the collection mechanism; if at least one of the first detection mechanism and the second detection mechanism detects that the preform is unqualified, the preform is rejected by the rejection mechanism.

[0018] Additional aspects and advantages of the present application will be given in part in the description below, and in part will become apparent from the description below, or will be learned through the practice of the present application. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The present application is further described below with reference to the accompanying drawings and embodiments;

[0020] Figure 1 This is a schematic diagram of the structure of the preform detection device in the embodiment of the present application;

[0021] Figure 2 This is another structural schematic diagram of the preform detection device in the embodiment of the present application;

[0022] Figure 3 for Figure 2 A magnified view of part A;

[0023] Figure 4 for Figure 3 Enlarged view of part b;

[0024] Figure 5 This is another structural schematic diagram of the preform detection device in the embodiment of the present application;

[0025] Figure 6 for Figure 5 Enlarged view of part C;

[0026] Figure 7 Schematic diagram of another structure of the preform detection device in the embodiment of the present application.

[0027] Reference numerals:

[0028] The first conveying mechanism 110, the first body 111, the slide 1111, the elastic suspension section 1112, the conveyor belt 112, the flow rate control wheel group 120, the first detection mechanism 130, the shaping mechanism 140; the second conveying mechanism 210, the second body 211, the vacuum suction member 212, the second detection mechanism 220; the first adjustment member 310, the second adjustment member 320; the rejection mechanism 400; the collection mechanism 500; the bottle embryo 600, the bottle mouth 610, the bottleneck 620, the bottleneck ring 630; the support member 700; the shell 800, the storage cabinet 810. DETAILED DESCRIPTION

[0029] This section will describe in detail the specific embodiments of the present application. The preferred embodiments of the present application are shown in the accompanying drawings. The purpose of the accompanying drawings is to supplement the description of the text part of the specification with graphics, so that people can intuitively and vividly understand each technical feature and the overall technical solution of the present application, but it cannot be understood as a limitation on the scope of protection of the present application.

[0030] In the description of the present application, it should be understood that descriptions involving orientation, such as up, down, front, back, left, right, etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present application.

[0031] In the description of this application, "several" means one or more, "more" means more than two, "greater than", "less than", "exceed", etc. are understood to exclude the number itself, and "above", "below", "within", etc. are understood to include the number itself. If there is a description of "first" or "second", it is only used for the purpose of distinguishing technical features, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features or implicitly indicating the order of the indicated technical features.

[0032] In the description of this application, unless otherwise clearly defined, words such as setting and connecting should be understood in a broad sense, and technicians in the relevant technical field can reasonably determine the specific meanings of the above words in this application based on the specific content of the technical solution.

[0033] The technical solution of the present application will be further described below in conjunction with embodiments and drawings.

[0034] In the embodiment of the present application, the positive direction of the Z axis in the drawings is taken as the top, and the negative direction of the Z axis is taken as the bottom.

[0035] See also Figure 1 The embodiment of the present application provides a preform detection device, which can perform a comprehensive detection on the preform 600, which is beneficial to improving the detection quality of the preform 600.

[0036] For example, see Figures 1 to 3 The preform inspection device includes a first conveying mechanism 110, a first inspection mechanism 130, a second conveying mechanism 210 and a second inspection mechanism 220. The first conveying mechanism 110 includes a first body 111. At least a part of the bottle body of the preform 600 is arranged in the first body 111, and the preform 600 is movable along the length direction of the first body 111. The first body 111 is provided with a first inspection station; the first inspection mechanism 130 is arranged at one side of the first inspection station and is used to face the bottle mouth 610 of the preform 600 to inspect at least one of the bottle mouth 610, the bottleneck 620 and the bottle liner of the preform 600; see Figure 4 and Figure 5 The second conveying mechanism 210 includes a second body 211 and a vacuum adsorbent 212 disposed on the second body 211. The vacuum adsorbent 212 is movable along the length direction of the second body 211. At least a portion of the second body 211 is opposite to the first body 111, so that the vacuum adsorbent 212 can fit the bottle mouth 610 of the preform 600 and adsorb the preform 600 to transfer the preform 600 from the first conveying mechanism 110 to the second conveying mechanism 210. The second conveying mechanism 210 is provided with a second inspection station; the second inspection mechanism 220 is provided on both sides of the second inspection station and is used to inspect the bottle body of the preform 600.

[0037] In the embodiment of the present application, when the preform 600 moves to the first inspection station along the length direction of the first body 111 of the first conveying mechanism 110, the first inspection mechanism 130 can inspect at least one of the bottle mouth 610, the bottle neck 620 and the bottle liner of the preform 600; the vacuum suction member 212 of the second conveying mechanism 210 can transfer the preform 600 from the first conveying mechanism 110 to the second conveying mechanism 210, and when the preform 600 moves to the second inspection station along the length direction of the second body 211 of the second conveying mechanism 210 with the vacuum suction member 212, since the vacuum suction member 212 adheres to the bottle mouth 610 to adsorb the preform 600, the second inspection mechanism 220 can perform a comprehensive inspection on the bottle body, thereby improving the inspection quality. In the embodiment of the present application, by switching the conveying mechanism, the switching of the conveying mode is realized, so that different parts of the preform 600 can be inspected, and there is no need to repeat multiple inspection processes to discharge unqualified preforms 600, which can improve the inspection quality of the preform 600 and the inspection efficiency.

[0038] Optionally, in some embodiments, see Figure 3 The first body 111 includes a slide groove 1111 arranged along its length direction, and the bottle embryo 600 is movably suspended in the slide groove 1111. The slide groove 1111 has a first head end and a first end, and the first detection station is arranged between the first head end and the first end. The second body 211 has a second head end and a second end, and the second detection station is arranged between the second head end and the second end, and the first end is opposite to the second head end.

[0039] Optionally, the first body 111 may be a slideway, and a slide groove 1111 is provided on the slideway. Optionally, the slide groove 1111 is a groove with openings at both ends, and the slide groove 1111 extends from one end of the slideway to the other end of the slideway. In other words, the first body 111 includes a first portion and a second portion arranged at intervals, and a slide groove 1111 is formed between the first portion and the second portion. Optionally, the width of the slide groove 1111 can be adjusted by adjusting the spacing between the first portion and the second portion. Optionally, the first head end of the slide groove 1111 is a feeding end, and the first end end is a discharging end. The first head end of the slide groove 1111 is connected to the preform sorting and loading machine, and the preforms 600 are continuously fed through the slide groove 1111.

[0040] Alternatively, see Figure 4 A bottleneck ring 630 is provided at the bottom of the bottleneck 620 of the preform 600. The diameter of the bottleneck ring 630 is greater than the width of the chute 1111, so that the preform 600 can be suspended in the chute 1111 of the slideway through the bottleneck ring 630, and the bottle mouth 610 of the preform 600 faces upward. The bottleneck ring 630 can facilitate the transportation and transfer of the preform 600 while not affecting the inspection of the bottle mouth 610, the bottleneck 620, the bottle liner and the bottle bottom.

[0041] Optionally, in some embodiments, see Figure 5 and Figure 6 The first body 111 includes an elastic suspended section 1112. The first end of the slide groove 1111 is arranged on the elastic suspended section 1112. When the preform 600 moves to the first end along the length direction of the slide groove 1111, the elastic suspended section 1112 passes through the preform 600 and is squeezed by the vacuum suction component 212, and generates a rebound force. The rebound force is used to make the bottle mouth 610 of the preform 600 fit the vacuum suction component 212, so that the vacuum suction component 212 can absorb the preform 600.

[0042] Optionally, the vacuum suction member 212 of the second conveying mechanism 210 is a vacuum negative pressure conveyor belt, which extends from the second head end of the second body 211 to the second end of the second body 211. Optionally, the second head end is located above the first end, and the second head end is opposite to the first end in the vertical direction.

[0043] Optionally, the vertical distance between the second head end and the first end may be slightly smaller than the distance from the bottom of the bottle neck ring 630 to the bottle mouth 610. In this way, when the preform 600 moves to the first end of the chute 1111, the vacuum negative pressure conveyor belt will squeeze the preform 600 to a certain extent, so that the elastic suspended section 1112 is deformed and generates a rebound force, so that the bottle mouth 610 surface of the preform 600 is more closely attached to the outer surface of the vacuum negative pressure conveyor belt, and at the same time, the gas in the cavity of the preform 600 can be extracted through the air holes of the vacuum negative pressure conveyor belt, so that the preform 600 can be firmly adsorbed on the outer surface of the vacuum negative pressure conveyor belt.

[0044] Optionally, in other embodiments, a moving block may be provided on the second conveying mechanism 210, and the moving block may be movable along the length direction of the second body 211, and the vacuum adsorbent 212 may be provided at the bottom of the moving block, and when the preform 600 is adsorbed on the vacuum adsorbent 212, the moving block may drive the preform 600 to leave the first conveying mechanism 110 and move to the second inspection station along the length direction of the second body 211. No further details will be given here.

[0045] Optionally, in some embodiments, the first conveying device further includes a first driving mechanism, and the first driving mechanism is used to drive the preform 600 to move along the length direction of the slide groove 1111 .

[0046] Optionally, in some embodiments, see Figure 3 The first driving mechanism includes two conveyor belts 112 , which are respectively arranged on both sides of the slide 1111 , and the two conveyor belts 112 are used to clamp the preform 600 in the slide 1111 and drive the preform 600 to move along the length direction of the slide 1111 .

[0047] Optionally, the conveyor belt 112 located on the same side as the first part of the first body 111 and the first part together constitute a first combination, and the conveyor belt 112 located on the same side as the second part of the first body 111 and the second part together constitute a second combination. By adjusting the spacing between the first combination and the second combination, the first conveying mechanism 110 can be adapted to bottle preforms 600 of different sizes. Of course, the spacing between the first part and the second part, and the spacing between the two conveyor belts 112 can be adjusted separately according to actual needs, and no specific limitation is made here.

[0048] Optionally, both conveyor belts 112 are located below the bottleneck ring 630 of the preform 600 , so that the first detection mechanism 130 can detect at least one of the bottle mouth 610 , the bottleneck 620 and the bottle liner of the preform 600 .

[0049] Alternatively, see Figure 3 The preform detection device further includes a flow rate control wheel group 120, which is disposed between the first head end and the first detection station. The flow rate control wheel group 120 is used to control the feeding speed of the preforms 600 and the spacing between the preforms 600.

[0050] Optionally, the flow rate control wheel assembly 120 includes a first power wheel, a first driving member, a second power wheel, and a second driving member, wherein the first power wheel and the second power wheel are respectively arranged on both sides of the slide groove 1111 and respectively located above the two conveyor belts 112. The first driving member is connected to the first power wheel to drive the first power wheel to rotate. The second driving member is connected to the second power wheel to drive the second power wheel to rotate. When the first power wheel and the second power wheel rotate, friction force is generated with the preform respectively, thereby driving the preform 600 to move.

[0051] Exemplarily, the first driving member drives the first power wheel to rotate forward, and the second driving member drives the second power wheel to rotate reversely, so as to drive the preform 600 to move toward the first inspection station.

[0052] It can be understood that by controlling the speed difference between the flow rate control wheel assembly 120 and the first driving mechanism, the spacing between the preforms after passing through the flow rate control wheel assembly 120 can be controlled. By controlling the rotation speed of the flow rate control wheel assembly 120, the time for the preforms 600 to pass through the flow rate control wheel assembly 120 can be controlled, thereby controlling the feeding speed of the preforms 600, so that the preforms 600 can be regularly transported.

[0053] Optionally, the first driving member and the second driving member may be driving motors. Of course, the first driving member and the second driving member may also adopt other driving structures, which are not specifically limited here.

[0054] Optionally, in some embodiments, see Figure 3 The preform detection device further includes a shaping mechanism 140, which is disposed between the first head end and the first detection station, and is used to adjust the state of the preform 600 in the chute 1111. Optionally, the shaping mechanism 140 can be disposed between the flow rate control wheel group 120 and the first detection station.

[0055] It is understandable that the bottle preforms 600 can be shaped by the shaping mechanism 140 so that each bottle preform 600 can maintain a uniform state, so that the first detection mechanism 130 can detect the bottle preforms 600.

[0056] Optionally, the preform detection device further comprises a linkage adjustment mechanism, and when the preform detection device is to be changed in production, the linkage adjustment mechanism can be adjusted to realize automatic change in production.

[0057] Optionally, the linkage adjustment mechanism includes a first adjustment member 310 and a second adjustment member 320 , the first adjustment member 310 is disposed above the first conveying mechanism 110 , and the second adjustment member 320 is disposed below the first conveying mechanism 110 .

[0058] Exemplarily, the preform detection device further includes a guide member, which is used to guide the preform 600 to move along the slide groove 1111. The first adjustment member 310 is connected to the guide member to adjust the height of the guide member so that the guide member can be adapted to preforms 600 of different sizes, thereby ensuring the balance stability of the preform 600 during the conveying process.

[0059] The second adjusting member 320 is connected to the first conveying mechanism 110 to adjust the distance between the first assembly and the second assembly, so that the first conveying mechanism 110 can be suitable for conveying preforms 600 of different sizes.

[0060] Optionally, in some embodiments, see Figure 1 The preform detection device further includes a rejection mechanism 400, which is disposed between the second detection station and the second end. The first detection mechanism 130 and the second detection mechanism 220 are both electrically connected to the rejection mechanism 400, and the rejection mechanism 400 is used to reject the preform 600 that fails the detection.

[0061] Optionally, in some embodiments, see Figure 1 The preform detection device further includes a collecting mechanism 500 , which is disposed near the second end of the second body 211 , and is used to receive the qualified preforms 600 output by the second conveying mechanism 210 .

[0062] Optionally, the collecting mechanism 500 may be a funnel, which is open and arranged corresponding to the discharge port of the second conveying mechanism 210 , so as to receive the qualified preforms 600 outputted by the second conveying mechanism 210 .

[0063] Optionally, in some embodiments, the second inspection mechanism 220 includes two inspection modules, which are respectively disposed on both sides of the second inspection station to perform a 360° circumferential inspection on the body of the preform 600 .

[0064] Exemplarily, the detection module includes a camera, a light splitter and two light reflecting components. The light splitter is arranged opposite to the camera, and the light splitter includes at least two light splitting surfaces, and the at least two light splitting surfaces are used to split the light path of the camera into at least two branches; the light reflecting component is opposite to the light splitting surface to reflect the branch onto the preform 600. The photographing areas corresponding to the two branches can be superimposed together, and the photographing area after the superposition of the two can be larger than the range corresponding to the continuous 180° in the circumferential direction of the preform 600. Therefore, by setting two detection modules, the bottle body of the preform 600 can be inspected 360° in the circumferential direction.

[0065] Optionally, the imaging element may be a camera, the beam splitter may be a prism, and the light reflecting element may be a reflector.

[0066] Alternatively, see Figure 1 The preform detection device further includes a support member 700 , and the first conveying mechanism 110 , the first detection mechanism 130 , the second conveying mechanism 210 , the second detection mechanism 220 , the first driving mechanism, the shaping mechanism 140 , and the rejecting mechanism 400 are all mounted on the support member 700 .

[0067] Optionally, the support member 700 may be a support frame. Of course, the support member 700 may also be other support members 700 such as a support plate, which is not specifically limited here.

[0068] Alternatively, see Figure 7 The preform detection device further includes a housing 800, and the support member 700, part of the first conveying mechanism 110, the first detection mechanism 130, the second conveying mechanism 210, the second detection mechanism 220, the first driving mechanism, the shaping mechanism 140 and the rejecting mechanism 400 are all accommodated in the housing 800. Optionally, the first head end of the chute 1111 of the first conveying mechanism 110 extends out of the housing 800 for feeding.

[0069] Optionally, the collecting mechanism 500 may be installed on the outer surface of the housing 800 to collect the qualified preforms 600 .

[0070] Alternatively, see Figure 1 A storage cabinet 810 is formed in the outer shell 800, and the support member 700, the first conveying mechanism 110, the first detection mechanism 130, the second conveying mechanism 210, the second detection mechanism 220, the first driving mechanism, the shaping mechanism 140 and the rejection mechanism 400 are all installed on the top of the storage cabinet 810.

[0071] Other structures and operations of the preform detection device according to the embodiment of the present application are known to those skilled in the art and will not be described in detail here.

[0072] The embodiment of the present application also provides a preform detection method, which includes the following steps.

[0073] In step S100 , when the preform 600 moves to the first inspection station along the length direction of the first body 111 of the first conveying mechanism 110 , the first inspection mechanism 130 inspects at least one of the bottle mouth 610 , the bottle neck 620 and the bottle liner of the preform 600 .

[0074] Optionally, the first detection mechanism 130 is used to detect the bottle mouth 610 , the bottle neck 620 and the bottle liner of the preform 600 .

[0075] Of course, the bottom of the preform 600 may also be inspected by the first inspection mechanism 130 , and no specific limitation is made here.

[0076] Step S200, the vacuum suction member 212 of the second conveying mechanism 210 is attached to the bottle mouth 610 of the preform 600, and the preform 600 is sucked to transfer the preform 600 from the first conveying mechanism 110 to the second conveying mechanism 210. When the preform 600 moves to the second inspection station with the vacuum suction member 212, the second inspection mechanism 220 inspects the bottle body of the preform 600.

[0077] Exemplarily, the vacuum adsorption member 212 of the second conveying mechanism 210 is a vacuum negative pressure conveyor belt, and the vertical distance between the second head end and the first end may be slightly smaller than the distance from the bottom of the bottle neck ring 630 to the bottle mouth 610. When the preform 600 moves to the first end of the chute 1111, the vacuum negative pressure conveyor belt will squeeze the preform 600 to a certain extent, so that the elastic suspended section 1112 is deformed and generates a rebound force, so that the bottle mouth 610 surface of the preform 600 is more closely attached to the outer surface of the vacuum negative pressure conveyor belt, and at the same time, the gas in the cavity of the preform 600 can be extracted through the air holes of the vacuum negative pressure conveyor belt, so that the preform 600 can be firmly adsorbed on the outer surface of the vacuum negative pressure conveyor belt.

[0078] Step S300: If both the first inspection mechanism 130 and the second inspection mechanism 220 detect that the preform 600 is qualified, the preform 600 is transported to the collecting mechanism 500; if at least one of the first inspection mechanism 130 and the second inspection mechanism 220 detects that the preform 600 is unqualified, the preform 600 is rejected by the rejecting mechanism 400.

[0079] That is, if the first inspection mechanism 130 detects that the preform 600 is unqualified, or the second inspection mechanism 220 detects that the preform 600 is unqualified, or both the first inspection mechanism 130 and the second inspection mechanism 220 detect that the preform 600 is unqualified, the rejection mechanism 400 will reject the preform 600.

[0080] Other structures and operations of the preform detection method according to the embodiment of the present application are known to those skilled in the art and will not be described in detail here.

[0081] The embodiments of the present application are described in detail above in conjunction with the accompanying drawings, but the present application is not limited to the above embodiments, and various changes can be made within the knowledge scope of ordinary technicians in the technical field without departing from the purpose of the present application.

Claims

1. A preform detection device, characterized in that: include: A first conveying mechanism comprises a first body, in which at least a part of the bottle body of the preform is arranged, and the bottle preform is movable along the length direction of the first body, and a first detection station is arranged on the first body; A first detection mechanism is disposed at one side of the first detection station and is used to face the bottle mouth of the preform to detect at least one of the bottle mouth, bottle neck and bottle liner of the preform; a second conveying mechanism, comprising a second body and a vacuum adsorbent disposed on the second body, the vacuum adsorbent being movable along the length direction of the second body, at least a portion of the second body being opposite to the first body, so that the vacuum adsorbent can be attached to the mouth of the preform and adsorb the preform, so as to transfer the preform from the first conveying mechanism to the second conveying mechanism, and the second conveying mechanism being provided with a second inspection station; The second detection mechanism is arranged on both sides of the second detection station and is used to detect the bottle body of the bottle preform.

2. The preform detection device according to claim 1, characterized in that: The first body comprises a slide groove arranged along the length direction thereof, the preform is movably suspended in the slide groove, the slide groove has a first head end and a first end, the first detection station is arranged between the first head end and the first end, the second body has a second head end and a second end, the second detection station is arranged between the second head end and the second end, and the first end is opposite to the second head end.

3. The preform detection device according to claim 2, characterized in that: The first body comprises an elastic suspended section, the first end of the slide groove is arranged on the elastic suspended section, when the bottle preform moves to the first end along the length direction of the slide groove, the elastic suspended section passes through the bottle preform and is squeezed by the vacuum suction component, and generates a rebound force, and the rebound force is used to make the bottle mouth of the bottle preform fit the vacuum suction component, so that the vacuum suction component can adsorb the bottle preform.

4. The preform detection device according to claim 2, characterized in that: The first conveying mechanism further includes a first driving mechanism, and the first driving mechanism is used to drive the preform to move along the length direction of the slide groove.

5. The preform detection device according to claim 4, characterized in that: The first driving mechanism includes two conveyor belts, which are respectively arranged on both sides of the chute, and are used to clamp the preforms in the chute and drive the preforms to move along the length direction of the chute.

6. The preform detection device according to claim 2, characterized in that: The preform detection device further includes a shaping mechanism, which is disposed between the first head end and the first detection station, and is used to adjust the state of the preform in the chute.

7. The preform detection device according to claim 2, characterized in that: The preform detection device further includes a rejection mechanism, which is disposed between the second detection station and the second end, the first detection mechanism and the second detection mechanism are both electrically connected to the rejection mechanism, and the rejection mechanism is used to reject the preform that fails the detection.

8. The preform detection device according to claim 2, characterized in that: The preform detection device further includes a collecting mechanism, which is disposed near the second end of the second body and is used to receive the qualified preforms output by the second conveying mechanism.

9. The preform detection device according to claim 1, characterized in that: The second detection mechanism includes two detection modules, which are respectively arranged on both sides of the second detection station to perform 360° circumferential detection on the bottle body of the preform.

10. A method for detecting a preform, characterized in that: The following steps are involved: When the preform moves to the first inspection station along the length direction of the first body of the first conveying mechanism, the first inspection mechanism inspects at least one of the bottle mouth, the bottle neck and the bottle liner of the preform; The vacuum suction piece of the second conveying mechanism is attached to the bottle mouth of the bottle preform and sucks the bottle preform to transfer the bottle preform from the first conveying mechanism to the second conveying mechanism. When the bottle preform moves to the second inspection station with the vacuum suction piece, the second inspection mechanism inspects the bottle body of the bottle preform; If both the first detection mechanism and the second detection mechanism detect that the preform is qualified, the preform is transported to the collection mechanism; if at least one of the first detection mechanism and the second detection mechanism detects that the preform is unqualified, the preform is rejected by the rejection mechanism.

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