Foreign matter detection induction mechanism for diaphragm processing

Abstract

The utility model discloses a foreign matter detection sensing mechanism for diaphragm processing, which comprises a conveying mechanism, a support is mounted on the upper surface of the conveying mechanism, a limit frame capable of moving along the length direction of the support is mounted on the surface of the support, and the limit frame is fixed on the support through a fastener. And a diffuse reflection sensor is detachably assembled on the limiting frame. The non-woven fabric detection device is simple in structure, solves the problem of detection and induction of the colored water-absorbing non-woven fabric spaced by the transparent film by selecting the diffuse reflection inductor with low cost, realizes induction of whether the colored water-absorbing non-woven fabric is arranged below the transparent film or not by designing the diffuse reflection inductor to be inclined to the transparent film and utilizing the principle of light refraction, and improves the detection accuracy of the colored water-absorbing non-woven fabric. Meanwhile, the position of the diffuse reflection sensor can be stably supported and adjusted under the action of the limiting frame, so that the device is conveniently suitable for transparent films with different thicknesses and different materials.

Description

Technical Field

[0001] The utility model relates to the technical field of transparent diaphragm detection, in particular to a foreign matter detection sensing mechanism for diaphragm processing. Background Art

[0002] In actual production processes, conveyor belts are often used to transport colored absorbent non-woven fabric parts heat-sealed underneath a transparent film roll. In order to detect the colored absorbent non-woven fabric underneath the transparent film roll, selecting a suitable sensor is a challenge. The current situation is that among the many sensors available, the most commonly available sensors are color-coded sensors. These sensors are isolated by a layer of transparent film, making the color separation effect of the color-coded sensors unreliable. Furthermore, good color-coded sensors are expensive. If the diffuse reflection sensor faces the transparent film, the sensor will output a signal regardless of the presence or absence of the colored absorbent non-woven fabric due to the reflection effect of the transparent film. That is, when the diffuse reflection sensor faces the transparent film, it detects the transparent film, not the colored absorbent non-woven fabric underneath. Therefore, a foreign body detection sensing mechanism for diaphragm processing is proposed. Utility Model Content

[0003] The purpose of the present utility model is to provide a foreign matter detection sensing mechanism for diaphragm processing to solve the problems raised in the above background technology.

[0004] To achieve the above-mentioned object, the present invention provides the following technical solution: a foreign body detection sensing mechanism for diaphragm processing, comprising a conveying mechanism, a bracket mounted on the upper surface of the conveying mechanism, a limit frame mounted on the surface of the bracket that can move along its length, the limit frame being fixed to the bracket by fasteners, and a diffuse reflection sensor being detachably mounted on the limit frame;

[0005] The limiting frame includes an integrally arranged support section and an inclined section, wherein the support section is fixed to the surface of the strip plate, and the inclined section is provided with a first threaded hole for fixing the diffuse reflection sensor;

[0006] Alternatively, the limiting frame includes a movable plate fixed to the surface of the bracket, a loose-leaf shaft is mounted on the movable plate, an adjustment plate is provided on the outer surface of the loose-leaf shaft in a clearance fit, and a second threaded hole is provided on the adjustment plate.

[0007] As a further solution of the present invention: the bracket includes two raising blocks provided on the upper surface of the conveying mechanism, and the upper surfaces of the two raising blocks are connected to the lower surface of the strip plate.

[0008] As a further solution of the present invention: a sliding groove is provided on the strip plate, and the end of the fastener passes through the sliding groove and is arranged under the strip plate.

[0009] As a further solution of the present invention: a dial is installed on the surface of the movable plate for convenient observation of the adjustment angle of the adjustment plate relative to the movable plate.

[0010] Compared with the prior art, the beneficial effects of the present invention are:

[0011] By selecting a low-cost diffuse reflection sensor, the problem of detecting and sensing colored absorbent non-woven fabrics separated by a transparent film is solved. Secondly, by designing the diffuse reflection sensor to be inclined at an angle to the transparent film, the principle of light refraction is used to sense whether there is colored absorbent non-woven fabric under the transparent film, which has a better actual use effect. At the same time, the position of the diffuse reflection sensor can be stably supported and adjusted under the action of the limit frame, so that it can easily adapt to transparent films of different thicknesses and materials. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 This is a schematic diagram of the main view of the sensing mechanism of the present utility model;

[0013] Figure 2 This is a schematic diagram of a strip plate of the present utility model;

[0014] Figure 3 This is a schematic diagram of the main view of the sliding slot of the utility model;

[0015] Figure 4 This is a schematic diagram of a cushion block of the present utility model;

[0016] Figure 5 This is a schematic diagram of a first embodiment of a limiting frame of the present utility model;

[0017] Figure 6 This is a schematic diagram of a second embodiment of the limiting frame of the present utility model;

[0018] Figure 7 This is a schematic diagram of the light reflection path of the diffuse reflection sensor of the present invention;

[0019] Figure 8 This is a schematic diagram of the light refraction path of the diffuse reflection sensor of the present invention;

[0020] In the figure: 1. Conveying mechanism; 2. Heightening block; 3. Strip plate; 4. Sliding groove; 5. Limiting frame; 51. Support section; 52. Inclined section; 53. First threaded hole; 54. Movable plate; 55. Loose-leaf shaft; 56. Adjusting plate; 57. Second threaded hole; 6. Fastener; 7. Diffuse reflection sensor. DETAILED DESCRIPTION

[0021] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0022] Example 1

[0023] See also Figure 1-8 In an embodiment of the utility model, a foreign matter detection sensing mechanism for diaphragm processing includes a conveying mechanism 1, a bracket is installed on the upper surface of the conveying mechanism 1, a limit frame 5 that can move along its length direction is installed on the surface of the bracket, the limit frame 5 is fixed to the bracket by a fastener 6, and a diffuse reflection sensor 7 is detachably assembled on the limit frame 5.

[0024] Specifically, the conveying mechanism 1 is provided with a conveying belt that can convey the transparent film, and the conveying belt is made of opaque material. The setting of the bracket can not only fix the limit frame 5, but also ensure that the transparent film passes smoothly from under the diffuse reflection sensor 7.

[0025] When there is no colored water-absorbing non-woven fabric under the transparent film, the diffuse reflection sensor 7 emits light after the angle is tilted. Part of the light is reflected after contacting the surface of the transparent film. The reflected light does not contact the diffuse reflection sensor 7. Part of the light passes through the surface of the transparent film, refracts into the inside of the transparent film, and is emitted from the other side of the transparent film. The emitted light is absorbed after contacting the conveyor belt, such as Figure 7 As shown; when there is a colored water-absorbing non-woven fabric under the transparent film, the light emitted by the diffuse reflection sensor 7 after the angle is tilted, part of it is reflected after contacting the surface of the transparent film, and the reflected light does not contact the diffuse reflection sensor 7. Part of the light passes through the surface of the transparent film, refracts into the interior of the transparent film, and is emitted from the other side of the transparent film. The emitted light will be reflected after contacting the colored water-absorbing non-woven fabric. The reflected light is refracted through the transparent film into the interior of the transparent film and is emitted from the upper surface of the transparent film. This part of the emitted light will shine on the diffuse reflection sensor 7, as shown Figure 8 As shown, it is possible to accurately determine whether there is colored water-absorbent non-woven fabric under the transparent film.

[0026] See also Figure 1-4 In one embodiment, in this embodiment, preferably, the bracket includes two raising blocks 2 provided on the upper surface of the conveying mechanism 1, and the upper surfaces of the two raising blocks 2 are connected to the lower surface of the strip plate 3. Furthermore, through the setting of the raising blocks 2, the strip plate 3 can be supported to a certain height to facilitate the smooth passage of the transparent film. At the same time, the strip plate 3 spans across the top of the conveyor belt and is respectively connected to the two raising blocks 2.

[0027] See also Figure 1-4 In one embodiment, in this embodiment, preferably, a sliding groove 4 is provided on the strip plate 3, and the end of the fastener 6 is passed through the sliding groove 4 to the bottom of the strip plate 3. Furthermore, the setting of the sliding groove 4 can limit the range and direction of movement of the limit frame 5.

[0028] See also Figure 1 、 Figure 2 and Figure 5 In one embodiment, in this embodiment, preferably, the limit frame 5 includes an integrally arranged support section 51 and an inclined section 52. The support section 51 is fixed to the surface of the strip plate 3, and the inclined section 52 is provided with a first threaded hole 53 for fixing the diffuse reflection sensor 7. Furthermore, the relative inclination angle of the inclined section 52 relative to the support section 51 is fixed and cannot be changed, and can only maintain the originally prepared inclination angle, but the inclination angle remains relatively stable, which is suitable for equipment that does not need to change the inclination angle for a long time, and the production cost is relatively low.

[0029] Example 2

[0030] See also Figure 3 、 Figure 4 and Figure 6 In one embodiment, in this embodiment, preferably, the limit frame 5 includes a movable plate 54 fixed to the surface of the strip plate 3, and a hinge shaft 55 is installed on the movable plate 54. The outer surface of the hinge shaft 55 is clearance-fitted with an adjustment plate 56, and a second threaded hole 57 is provided on the adjustment plate 56. The surface of the movable plate 54 is installed with a dial 58 that is convenient for adjusting the angle of the adjustment plate 56 relative to the movable plate 54.

[0031] Specifically, the movable plate 54 and the adjustment plate 56 are movably connected. When the diffuse reflection sensor 7 is fixed to the adjustment plate 56, the angle of the adjustment plate 56 is adjusted by applying an external force to the adjustment plate 56. When the external force disappears, the inclination angle of the adjustment plate 56 remains unchanged, thereby achieving the effect of adjusting the inclination of the diffuse reflection sensor 7. At the same time, under the action of the dial 58, the inclination angle of the adjustment plate 56 can be observed. In this way, the inclination angle can be adjusted in real time according to the thickness or material of the transparent film, thereby expanding the application range of the mechanism.

[0032] The working principle and usage process of the present invention are as follows: the light emitted by the diffuse reflection sensor 7 passes through the surface of the transparent film, and part of the light is reflected back. Because the diffuse reflection sensor 7 is tilted at a certain angle, the light reflected back by the transparent film exceeds the range of the diffuse reflection sensor 7 receiving light. Therefore, the diffuse reflection sensor 7 cannot sense the transparent film; at the same time, the light emitted by the diffuse reflection sensor 7 passes through the surface of the transparent film, and another part of the light is refracted into the interior of the transparent film and emitted from the other side of the transparent film. If the emitted light encounters a colored water-absorbent non-woven fabric, part of the light will be reflected back by the colored water-absorbent non-woven fabric. Because the light refracted by the transparent film changes the angle of the original light, the light reflected back by the colored water-absorbent non-woven fabric is still within the range of the diffuse reflection sensor 7 receiving light when leaving the transparent film. Therefore, the diffuse reflection sensor 7 can sense the colored water-absorbent non-woven fabric under the transparent film; if it encounters a conveyor belt, this part of the light will be absorbed by the conveyor belt, so that the diffuse reflection sensor 7 cannot sense the conveyor belt, thereby judging whether there is a colored water-absorbent non-woven fabric under the transparent film.

[0033] Although this specification is described according to implementation methods, not every implementation method contains only one independent technical solution. This narrative method of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment can also be appropriately combined to form other implementation methods that can be understood by those skilled in the art.

[0034] Therefore, the above description is only a preferred embodiment of the present application and is not intended to limit the scope of implementation of the present application; that is, all equivalent modifications made according to the scope of the claims of the present application are within the scope of protection of the claims of the present application.

Claims

1. A foreign body detection sensing mechanism for diaphragm processing, comprising a conveying mechanism (1), characterized in that: A bracket is installed on the upper surface of the conveying mechanism (1), and a limit frame (5) movable along its length direction is installed on the surface of the bracket. The limit frame (5) is fixed to the bracket by a fastener (6), and a diffuse reflection sensor (7) is detachably mounted on the limit frame (5); The limiting frame (5) comprises an integrally arranged supporting section (51) and an inclined section (52); the supporting section (51) is fixed to the surface of the strip plate (3); and the inclined section (52) is provided with a first threaded hole (53) for fixing the diffuse reflection sensor (7); Alternatively, the limiting frame (5) includes a movable plate (54) fixed to the surface of the bracket, a hinge shaft (55) is installed on the movable plate (54), an adjustment plate (56) is provided on the outer surface of the hinge shaft (55) in a clearance fit, and a second threaded hole (57) is provided on the adjustment plate (56).

2. The foreign matter detection sensing mechanism for diaphragm processing according to claim 1, characterized in that: The bracket comprises two raising blocks (2) arranged on the upper surface of the conveying mechanism (1), and the upper surfaces of the two raising blocks (2) are both connected to the lower surface of the strip plate (3).

3. The foreign matter detection sensing mechanism for diaphragm processing according to claim 1, characterized in that: A sliding groove (4) is provided on the strip plate (3), and the end of the fastener (6) passes through the sliding groove (4) and is arranged below the strip plate (3).

4. The foreign matter detection sensing mechanism for diaphragm processing according to claim 1, characterized in that: The surface of the movable plate (54) is provided with a dial (58) for conveniently observing the angle of the adjustment plate (56) relative to the movable plate (54).

Images