Rotary mask appearance detection equipment

Abstract

The utility model relates to the technical field of mask appearance detection equipment, and provides rotary mask appearance detection equipment. The rotary mask appearance detection equipment comprises a variable-pitch track, a clamping assembly, a blower and a detection assembly, the variable-pitch track comprises a first track and a second track, the first track is an annular track formed by connecting two arc-shaped tracks in a staggered mode, the second track is an annular track, the first track and the second track are arranged in parallel, and the clamping assembly is connected with the blower. The distances between the two arc-shaped rails and the second rail are different; the clamping assembly is assembled on the variable-pitch track in a sliding manner; an air outlet of the air blower points to the nodes with the distances decreasing from large to small on the variable-pitch track from inside to outside; according to the rotary type mask appearance detection equipment, a folded mask can be opened in the appearance detection process, appearance detection is more comprehensive, and the reliability of the appearance detection result is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of mask appearance detection equipment, in particular to a rotary mask appearance detection equipment. Background Art

[0002] As a medical protective product, each mask needs to be quality inspected during the production process to ensure that each mask delivered meets the quality standards. The appearance inspection of the mask is an important part of the mask quality inspection.

[0003] The main contents of the appearance inspection of masks are the cleanliness and integrity of the mask surface. Existing appearance inspection equipment for masks mostly uses a conveyor belt to transport masks through industrial cameras, which perform appearance inspection on the masks. However, the masks are in a folded state during this process, and the folded part of the mask cannot be effectively inspected, resulting in increased uncertainty in the inspection results. Utility Model Content

[0004] The purpose of the utility model is to provide a rotary mask appearance detection device, which can open a folded mask during the appearance detection process, so that the appearance detection is more comprehensive and the reliability of the appearance detection result is improved.

[0005] The utility model provides a rotary mask appearance detection device, comprising:

[0006] A variable pitch track, the variable pitch track comprising a first track and a second track, the first track being a ring track formed by staggered connection of two arc tracks, the second track being a circular track, the first track and the second track being arranged in parallel, and the spacing between the two arc tracks and the second track being different;

[0007] Clamping assemblies, wherein the clamping assemblies are uniformly slidably assembled on the variable-pitch track in groups of two, the openings of the clamping assemblies in each group are opposite to each other, and the clamping assemblies in each group are respectively assembled on the first track and the second track;

[0008] A blower, wherein the blower is located on the inner side of the variable pitch track, and the air outlet is directed from the inside to the outside to the node on the variable pitch track where the spacing changes from large to small;

[0009] The clamping assembly clamps the mask, and when the clamping assembly passes through a node where the spacing changes from large to small, the mask is opened by the squeezing force and wind force;

[0010] A detection component is installed in a small pitch section of a variable pitch track.

[0011] Preferably, the second track is a circular track formed by two arc tracks connected in an offset manner, and the second track and the first track are symmetrical structures.

[0012] Preferably, the detection component comprises an industrial camera and a light source, and the industrial camera and the light source are respectively located on the inner and outer sides of the variable-distance track.

[0013] Preferably, the light source is located inside the variable pitch track, and the light source is located on the axis of the variable pitch track, the light source faces the small pitch section of the variable pitch track, and the industrial camera and the light source face oppositely.

[0014] Preferably, the clamping assembly comprises a slider and a chuck, the slider is slidably assembled on the variable pitch track, and the chuck is rotatably connected to the slider via a rotating shaft structure.

[0015] Preferably, the clamping assembly further comprises a driving motor, the driving motor is fixedly connected to the slider, a tooth feature is provided on the variable pitch track, and a driving end of the driving motor is meshed with the tooth feature.

[0016] Preferably, the rotary mask appearance inspection equipment also includes an input conveyor belt, which is tangentially inserted into the pitch of the variable pitch track, and the tangential insertion point of the input conveyor belt is located in the large pitch section of the variable pitch track close to the node position where the pitch changes from large to small, and the output direction of the input conveyor belt is in the direction of the node where the pitch changes from large to small.

[0017] Preferably, the variable pitch track axis is horizontal, the input conveyor belt is horizontally arranged, and the insertion point of the input conveyor belt is the highest point of the variable pitch track.

[0018] Preferably, the rotary mask appearance inspection equipment also includes an output conveyor belt, which is inserted into the variable pitch track spacing, the output conveyor belt and the input conveyor belt are parallel to each other, the insertion point of the output conveyor belt is close to the insertion point of the input conveyor belt, and the output conveyor belt insertion point is located on the side of the input conveyor belt insertion point away from the node where the spacing changes from large to small.

[0019] Preferably, the rotary mask appearance inspection equipment also includes a guide plate, which is fixedly connected to the output conveyor belt, the guide plate passes through the insertion point of the output conveyor belt, the angle between the guide plate and the variable pitch track is an obtuse angle, and the opening direction of the obtuse angle is toward the output conveyor belt.

[0020] The technical solution of the utility model changes the spacing of the clamping components from large to small and then from small to large through a variable pitch track. In the process of the spacing changing from large to small, an extrusion force is generated, and the mask is forced to open when combined with the wind force of a hair dryer. The tensile force generated in the process of the spacing changing from small to large is utilized to restore the mask to a folded state, and the appearance of the mask is inspected when the mask is opened, which can effectively improve the reliability of the inspection result. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In order to more clearly illustrate the specific implementation methods of the utility model or the technical solutions in the prior art, the drawings required for use in the specific implementation methods or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some implementation methods of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0022] Figure 1 This is an axonometric diagram of a rotary mask appearance inspection device of the utility model;

[0023] Figure 2 for Figure 1 Axonometric drawing of the variable pitch track in the rotary mask appearance inspection equipment;

[0024] Figure 3 for Figure 1 Axonometric view of the clamping assembly in the rotary mask appearance inspection equipment;

[0025] Figure 4 for Figure 1 Assembly drawing of the blower and detection components in the rotary mask appearance inspection equipment;

[0026] Figure 5 for Figure 1 Assembly drawing of the conveyor belt and guide plate in the rotary mask appearance inspection equipment.

[0027] Description of reference numerals:

[0028] 1. Variable pitch track; 11. First track; 12. Second track; 2. Clamping assembly; 21. Slider; 22. Chuck; 23. Drive motor; 3. Blower; 4. Detection assembly; 41. Industrial camera; 42. Light source; 51. Input conveyor belt; 52. Output conveyor belt; 6. Guide plate. DETAILED DESCRIPTION

[0029] The technical solution of the utility model will be clearly and completely described below in conjunction with the embodiments. Obviously, the described embodiments are part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0030] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise" and the like indicating directions or positional relationships are based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore should not be understood as a limitation on the present invention.

[0031] In the description of the present utility model, it should be understood that the terms "first" and "second" are only used for descriptive purposes, and should not be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present utility model, "multiple" means two or more, unless otherwise clearly and specifically defined. In addition, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected, or indirectly connected through an intermediate medium, or it can be the internal communication of two components. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

[0032] Combination Figures 1 to 5 As shown, a rotary mask appearance detection device provided by the utility model includes a variable pitch track 1, a clamping component 2, a blower 3 and a detection component 4.

[0033] Combination Figures 1 to 5 As shown, the variable pitch track 1 includes a first track 11 and a second track 12, the first track 11 is a ring track formed by two arc tracks staggered and connected, the second track 12 is a circular track, the first track 11 and the second track 12 are arranged side by side, and the spacing between the two arc tracks and the second track 12 is different; the clamping components 2 are evenly slidably assembled on the variable pitch track 1 in groups of two, the openings of the clamping components 2 in each group are opposite, and the clamping components 2 in each group are respectively assembled on the first track 11 and the second track 12; the hair dryer 3 is located on the inner side of the variable pitch track 1, and the air outlet points from the inside to the outside to the node on the variable pitch track 1 where the spacing changes from large to small; the clamping component 2 clamps the mask, and when the clamping component 2 passes the node where the spacing changes from large to small, the mask is opened by the extrusion force and wind force; the detection component 4 is assembled on the small spacing section of the variable pitch track 1.

[0034] In this embodiment, the spacing of the clamping assembly 2 is changed from large to small and then from small to large through the variable pitch track 1. In the process of the spacing changing from large to small, an extrusion force is generated, and the mask is forced to open when combined with the wind force of the hair dryer; the tensile force generated in the process of the spacing changing from small to large is utilized to restore the mask to a folded state, and the appearance of the mask is inspected when the mask is opened, which can effectively improve the reliability of the inspection results.

[0035] In this embodiment, the design of the variable pitch track 1 realizes the change in the spacing of the clamping component 2, the hair dryer 3 can ensure the direction and thoroughness of the mask opening, the air outlet of the hair dryer 3 points to the node on the variable pitch track 1 where the spacing changes from large to small, which can ensure that the extrusion force and wind force act on the mask at the same time, reducing the creases of the mask, the detection component 4 can perform appearance inspection on the mask, and the detection component 4 is assembled on the small spacing section of the variable pitch track 1 to ensure that the detection process occurs when the mask is opened.

[0036] In some embodiments, in combination Figure 1 , 2 As shown, the second track 12 is a circular track formed by staggered connection of two arc tracks, and the second track 12 and the first track 11 are symmetrical structures, so that the center position of the mask remains unchanged after passing through nodes with intervals from large to small, which is beneficial to the positioning of the mask and enables the wind force of the hair dryer to be more evenly applied to the mask.

[0037] In some embodiments, in combination Figure 1 , 4 As shown, the detection component 4 includes an industrial camera 41 and a light source 42, and the industrial camera 41 and the light source 42 are respectively located on the inner and outer sides of the variable-pitch track 1. Through the illumination of the light source 42, defects on the mask can appear as highlights, shadows, etc., thereby improving the detection effect of the industrial camera 41.

[0038] In some embodiments, in combination Figure 1 , 4 As shown, the light source 42 is located on the inner side of the variable pitch track 1, and the light source 42 is located on the axis of the variable pitch track 1, the light source 42 is facing the small pitch section of the variable pitch track 1, and the industrial camera 41 and the light source 42 are facing oppositely. Since the mask presents a spherical shape as a whole after opening, the light source 42 is located on the axis of the variable pitch track 1, which can make the distance between the light source 42 and various parts of the mask more uniform, thereby improving the illumination effect of the light source 42 on the mask.

[0039] In some embodiments, in combination Figure 1 , 3As shown, the clamping assembly 2 includes a slider 21 and a chuck 22. The slider 21 is slidably assembled on the variable pitch track 1. The chuck 22 is rotatably connected to the slider 21 through a rotating shaft structure. The clamping assembly 2 needs to slide on the variable pitch track 1. The slider 21 is designed to ensure the reliability of the sliding process. The chuck 22 rotates on the slider 21 through the rotating shaft structure to realize the clamping action. Compared with the translational opening and closing action, it is more convenient for the mask to enter the clamping assembly 2.

[0040] In some embodiments, in combination Figure 1 , 3 As shown, the clamping assembly 2 also includes a driving motor 23, and the driving motor 23 is fixedly connected to the slider 21. The variable pitch track 1 is provided with a tooth feature, and the driving end of the driving motor 23 is meshed with the tooth feature. The driving motor serves as a power source for the sliding of the clamping assembly 2 on the variable pitch track 1, thereby realizing the controllable movement of the clamping assembly 2. At the same time, the transmission mode of tooth meshing has good transmission accuracy and timeliness.

[0041] In some embodiments, in combination Figure 1 , 5 As shown, the rotary mask appearance inspection equipment also includes an input conveyor belt 51, which is tangentially inserted into the pitch of the variable pitch track 1, and the tangential insertion point of the input conveyor belt 51 is located in the large pitch section of the variable pitch track 1 close to the node position where the pitch changes from large to small, and the output direction of the input conveyor belt 51 is toward the direction of the node where the pitch changes from large to small. The input conveyor belt 51 conveys the mask to a position where the clamping assembly 2 can clamp it, thereby realizing the feeding action during the mask appearance inspection process, and the insertion point of the input conveyor belt 51 in the variable pitch track 1 is the position where the mask is clamped by the clamping assembly 2 from the variable pitch track 1.

[0042] In some embodiments, in combination Figure 1 , 5 As shown, the axis of the variable pitch track 1 is horizontal, the input conveyor belt 51 is horizontally arranged, and the insertion point of the input conveyor belt 51 is the highest point of the variable pitch track 1, which is conducive to feeding with a horizontal conveyor belt. When the axis of the variable pitch track 1 is vertical, a rotating mechanism is required between the conveyor belt and the variable pitch track 1 to turn the mask so that the clamping assembly 2 can clamp the mask, or the conveyor belt is upright and the mask above is fixed with a fixing mechanism to prevent the mask from falling. Due to the existence of the clamping assembly 2, there is no need to consider the position of the mask after it is moved out of the conveyor belt.

[0043] In some embodiments, in combination Figure 1As shown, the rotary mask appearance inspection device also includes an output conveyor belt 52, which is inserted into the spacing of the variable pitch track 1, and the output conveyor belt 52 and the input conveyor belt 51 are parallel to each other. The insertion point of the output conveyor belt 52 is close to the insertion point of the input conveyor belt 51, and the insertion point of the output conveyor belt 52 is located on the side of the insertion point of the input conveyor belt 51 away from the node where the spacing changes from large to small. The output conveyor belt 52 will recycle the masks that have been inspected, and the design of the insertion point of the output conveyor belt 52 can ensure that the masks have been restored to a folded state under the action of the tensile force when they are recycled.

[0044] In some embodiments, in combination Figure 1 , 5 As shown, the rotary mask appearance inspection equipment also includes a guide plate 6, which is fixedly connected to the output conveyor belt 52, and the guide plate 6 passes through the insertion point of the output conveyor belt 52. The angle between the guide plate 6 and the variable pitch track 1 is an obtuse angle, and the opening direction of the obtuse angle is toward the output conveyor belt 52. The guide plate 6 can make the mask move more smoothly to the output conveyor belt 52. The angle between the guide plate 6 and the variable pitch track 1 is an important working parameter of the guide plate 6, which determines the direction and strength of the guiding action of the guide plate 6.

[0045] Working process: The mask enters between the first track 11 and the second track 12 in the variable pitch track 1 under the action of the input conveyor belt 51. The clamping assembly 2 slidably assembled on the variable pitch track 1 moves to both sides of the mask under the action of the driving motor and clamps the two ends of the mask. At this time, the clamping assembly 2 is located in the large pitch section, and the clamping assembly 2 moves to the node position where the pitch changes from large to small.

[0046] When the clamping component 2 passes through a node where the spacing changes from large to small, the mask will be subjected to an extrusion force due to the smaller spacing. At the same time, the hair dryer 3 will blow air to the mask to cause the mask to open. The opened mask then passes through the detection component 4, which performs an appearance inspection on the mask. Finally, the mask moves toward the node position where the spacing changes from small to large.

[0047] When the clamping assembly 2 passes through a node where the spacing changes from large to small, the mask is subjected to a tensile force due to the increase in spacing, causing the mask to return to a folded state. The restored mask will move toward the output conveyor belt 52. When passing through the output conveyor belt 52, the clamping assembly 2 is released, and the mask enters the output conveyor belt 52 under the guidance of the guide plate 6.

[0048] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the utility model, rather than to limit it. Although the utility model has been described in detail with reference to the aforementioned embodiments, ordinary technicians in this field should understand that they can still modify the technical solutions recorded in the aforementioned embodiments, or replace some or all of the technical features therein with equivalents. However, these modifications or replacements do not make the essence of the corresponding technical solution deviate from the scope of the technical solution of the embodiments of the utility model.

Claims

1. A rotary mask appearance detection device, characterized in that: include: A variable pitch track (1), the variable pitch track (1) comprising a first track (11) and a second track (12), the first track (11) being a ring track formed by staggered connection of two arc tracks, the second track (12) being a circular track, the first track (11) and the second track (12) being arranged in parallel, and the spacing between the two arc tracks and the second track (12) being different; Clamping assemblies (2), the clamping assemblies (2) being evenly slidably assembled on the variable-pitch track (1) in groups of two, the openings of the clamping assemblies (2) in each group being opposite to each other, and the clamping assemblies (2) in each group being respectively assembled on the first track (11) and the second track (12); A blower (3), the blower (3) being located on the inner side of the variable pitch track (1), and having an air outlet pointing from the inside to the outside toward a node on the variable pitch track (1) where the spacing changes from large to small; The clamping assembly (2) clamps the mask, and when the clamping assembly (2) passes through a node where the spacing changes from large to small, the mask is opened by the squeezing force and wind force; A detection component (4) is mounted on a small pitch section of a variable pitch track (1).

2. The rotary mask appearance detection device according to claim 1, characterized in that: The second track (12) is a circular track formed by staggered connection of two arc-shaped tracks, and the second track (12) and the first track (11) are symmetrical structures.

3. The rotary mask appearance detection device according to claim 1, characterized in that: The detection component (4) comprises an industrial camera (41) and a light source (42), and the industrial camera (41) and the light source (42) are respectively located on the inner and outer sides of the variable-distance track (1).

4. The rotary mask appearance detection device according to claim 3, characterized in that: The light source (42) is located on the inner side of the variable pitch track (1), and the light source (42) is located on the axis of the variable pitch track (1), the light source (42) faces the small pitch section of the variable pitch track (1), and the industrial camera (41) and the light source (42) face oppositely.

5. The rotary mask appearance detection device according to claim 1, characterized in that: The clamping assembly (2) comprises a slider (21) and a clamp (22); the slider (21) is slidably assembled on the variable pitch track (1); and the clamp (22) is rotatably connected to the slider (21) via a rotating shaft structure.

6. The rotary mask appearance detection device according to claim 5, characterized in that: The clamping assembly (2) further comprises a driving motor (23), wherein the driving motor (23) is fixedly connected to the slider (21), and a tooth feature is provided on the variable pitch track (1), and a driving end of the driving motor (23) is meshed with the tooth feature.

7. The rotary mask appearance detection device according to claim 1, characterized in that: It also comprises an input conveyor belt (51), the input conveyor belt (51) is tangentially inserted into the pitch of the variable pitch track (1), the tangential insertion point of the input conveyor belt (51) is located in the large pitch section of the variable pitch track (1) close to the node position where the pitch changes from large to small, and the output direction of the input conveyor belt (51) is in the direction of the node where the pitch changes from large to small.

8. The rotary mask appearance detection device according to claim 7, characterized in that: The axis of the variable pitch track (1) is horizontal, the input conveyor belt (51) is arranged horizontally, and the insertion point of the input conveyor belt (51) is the highest point of the variable pitch track (1).

9. The rotary mask appearance detection device according to claim 7, characterized in that: The utility model also comprises an output conveyor belt (52), wherein the output conveyor belt (52) is inserted into the pitch of the variable pitch track (1), the output conveyor belt (52) and the input conveyor belt (51) are parallel to each other, the insertion point of the output conveyor belt (52) is close to the insertion point of the input conveyor belt (51), and the insertion point of the output conveyor belt (52) is located on the side of the insertion point of the input conveyor belt (51) away from the node where the pitch changes from large to small.

10. The rotary mask appearance detection device according to claim 9, characterized in that: It also includes a guide plate (6), the guide plate (6) is fixedly connected to the output conveyor belt (52), the guide plate (6) passes through the insertion point of the output conveyor belt (52), the angle between the guide plate (6) and the variable pitch track (1) is an obtuse angle, and the opening direction of the obtuse angle is toward the output conveyor belt (52).

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