Coating missing detection device for coating drying

Abstract

The utility model discloses a coating missing detection device for drying a coating, which relates to the technical field of coating and comprises a coating product, a reel and support plates, an upper cross beam is arranged between the support plates and close to the top, a lower cross beam is arranged between the support plates and close to the bottom, and the reel is connected with the upper cross beam. An adjusting screw rod is arranged at the central position between the upper cross beam and the lower cross beam, a reciprocating motor is arranged at one end, located on one side of the supporting plate, of the adjusting screw rod, limiting assemblies are arranged at the edges of the two sides above the coating product, a detection assembly is arranged between the limiting assemblies, and detection heads are arranged at the bottoms of the limiting assemblies; according to the utility model, the reciprocating motor drives the detection assembly to move back and forth between the limiting assemblies, the detection head scans and detects a coating product passing below back and forth, and the positions of the limiting assemblies are adjusted according to the actual width of the coating product, so that the scanning range of the detection head is expanded, and the device realizes the coating missing detection of the coating product with any width.

Description

Technical Field

[0001] This utility model belongs to the field of coating technology, specifically, it relates to a device for detecting missed coatings during coating drying. Background Technology

[0002] Coating refers to the method of applying a paste polymer, molten polymer, or polymer melt onto paper, cloth, or plastic film to obtain a composite material (film). It is also used for purposes such as corrosion prevention, insulation, and decoration. A thin plastic layer is applied to the surface of objects such as fabrics, paper, metal foil, or plates in liquid or powder form. During the use of a coating dryer, it is necessary to detect any missing coatings on the material being dried.

[0003] Chinese patent publication number CN219319372U discloses a coating leak-proof testing device; it includes a main body, which includes a platform and a support part disposed on one side of the top surface of the platform. A crossbeam is slidably disposed on one side of the support part, as well as a thickness measuring instrument disposed above the platform and two sets of fixing parts symmetrically installed on the surface of the platform. Although the above-mentioned prior art increases the detection area by adjusting the position of the measuring instrument, the corresponding measuring instrument has a limited range of motion and can only detect specific areas. The detection results still have errors and are only applicable to testing sheet materials.

[0004] In view of this, this utility model is proposed. Utility Model Content

[0005] The technical problem to be solved by this utility model is to overcome the shortcomings of the prior art and provide a coating drying defect detection device, which solves the problems mentioned in the background art.

[0006] To solve the above-mentioned technical problems, the basic concept of the technical solution adopted by this utility model is as follows:

[0007] A coating drying defect detection device includes: a coated product and a roll, characterized in that the coated product is wound around the roll at both ends, the roll has support legs at both ends, a side frame is provided between the support legs, a support plate is installed at the top center of the side frame, an upper crossbeam is provided between the support plates near the top, a lower crossbeam is provided between the support plates near the bottom, an adjusting screw is provided at the center between the upper and lower crossbeams, a reciprocating motor is provided at one end of the adjusting screw on one side of the support plate, limit components are provided at the upper two edges of the coated product between the upper and lower crossbeams, a detection component is provided between the limit components, a threaded hole is provided through the center of the detection component, and a detection head is provided at the bottom of the limit component.

[0008] Optionally, the limiting component is fixedly connected to the upper clamping plate on both sides of the bottom, and a lower clamping plate is provided below the upper clamping plate. Fasteners are vertically installed on both sides of the upper and lower clamping plates. A through hole is opened horizontally at the center of the lower clamping plate, and the adjusting screw passes through the through hole.

[0009] Optionally, the limiting component is provided with a sensing head facing the detection component, and both ends of the detection component are provided with pins facing the limiting component. The top of the limiting component is provided with a wiring hole, and a connecting wire is installed inside the wiring hole. The other end of the connecting wire passes through the support plate and is connected to the reciprocating motor.

[0010] Optionally, the detection component has a slider extending between the upper and lower crossbeams, and a roller is installed at the center of the slider.

[0011] Optionally, springs are provided at both ends of the detection component and at the top of the limiting component, and a spring plate is provided on one side of the spring, with the spring plate and the upper clamping plate aligned.

[0012] Optionally, the roll surface is fitted with retaining rings, and the coated product is disposed between two retaining rings.

[0013] By adopting the above technical solution, the present invention has the following beneficial effects compared with the prior art. Of course, any product implementing the present invention does not necessarily need to achieve all of the following advantages at the same time:

[0014] 1. The coating drying omission detection device uses limiting components at both ends of the crossbeam. A reciprocating motor drives the detection component to move back and forth between the limiting components. The detection head scans the coated product passing below. The position of the limiting components is adjusted according to the actual width of the coated product, thereby expanding the scanning range of the detection head. The device can detect omissions in coated products of any width.

[0015] 2. The coating drying omission detection device expands the detection range by moving the detection component back and forth between the limiting components. Compared with using multiple sets of detection heads to detect side by side, it reduces the number of finished products to be detected, slows down the conveying speed of the coated products and speeds up the movement speed of the detection components, and can also achieve full scanning detection of the coating area by the detection head.

[0016] The specific embodiments of this utility model will be described in further detail below with reference to the accompanying drawings. Attached Figure Description

[0017] The accompanying drawings described below are merely some embodiments. Those skilled in the art can obtain other drawings based on these drawings without any creative effort.

[0018] In the picture:

[0019] Figure 1 This is a schematic diagram of the structure of this utility model;

[0020] Figure 2 This is a schematic diagram of the limiting component of this utility model;

[0021] Figure 3 This is a schematic diagram of the detection component of this utility model.

[0022] The attached diagram lists the components represented by each number as follows:

[0023] 1. Coated product; 2. Roll; 201. Retaining ring; 3. Side frame; 301. Support plate; 302. Upper crossbeam; 303. Lower crossbeam; 304. Adjusting screw; 305. Reciprocating motor; 4. Limiting assembly; 401. Upper clamping plate; 402. Lower clamping plate; 403. Through hole; 404. Sensor head; 405. Wiring hole; 406. Fastener; 407. Connecting wire; 5. Detection assembly; 501. Threaded hole; 502. Roller; 503. Spring plate; 504. Spring; 505. Ejector pin; 506. Detection head.

[0024] It should be noted that these accompanying drawings and textual descriptions are not intended to limit the scope of the present invention in any way, but rather to illustrate the concept of the present invention to those skilled in the art by referring to specific embodiments. Detailed Implementation

[0025] The present invention will now be described in further detail with reference to the accompanying drawings.

[0026] Please see Figure 1-3 As shown, this embodiment provides a coating drying defect detection device, including: a coating product 1 and a roll 2.

[0027] like Figure 1-3As shown, in this embodiment, the coated product 1 is wound around a spool 2 at both ends. Support legs are provided at both ends of the spool 2, and a side frame 3 is provided between the support legs. A support plate 301 is installed at the center of the top of the side frame 3. An upper crossbeam 302 is provided between the support plates 301 near the top, and a lower crossbeam 303 is provided between the support plates 301 near the bottom. An adjusting screw 304 is provided at the center between the upper and lower crossbeams 302 and 303. A reciprocating motor 305 is provided at one end of the adjusting screw 304 on one side of the support plate 301. The upper edges of the coated product 1 are located between the upper and lower crossbeams 302 and 303. Limiting components 4 are installed between beams 303, and detection components 5 are installed between the limiting components 4. A threaded hole 501 is drilled through the center of the detection component 5, and a detection head 506 is installed at the bottom of the limiting components 4. The coated product 1 is transported from one roller 2 to the other by the simultaneous rotation of two rollers 2, with the coating area facing upwards during transport. The detection head 506 detects any missed coating areas on the surface of the coated product 1. Both the upper crossbeam 302 and the lower crossbeam 303 have elongated holes at their centers through which the limiting components 4 and the detection components 5 pass. The detection component 5 is connected to the threaded hole 5 by an adjusting screw 304. Supported by 01, when the reciprocating motor 305 drives the adjusting screw 304 to rotate, the threaded engagement of the thread and threaded hole 501 drives the detection component 5 to move between the upper crossbeam 302 and the lower crossbeam 303. The limiting component 4 is fixed above the edge of the coated product 1. When the detection component 5 moves to one side and contacts the limiting component 4, the detection head 506 moves to the edge of the coated product 1. The reciprocating motor 305 rotates the adjusting screw 305 in the opposite direction, and the detection component 5 drives the detection head 506 to turn its direction and continue detection until the detection component 5 touches another limiting component 4, and so on. The ring moves back and forth, while the scroll 2 rotates continuously, transporting the coated product 1 forward. Note that in order to ensure that the entire coated product 1 can be illuminated by the detection head 506, the rotation speed of the scroll 2 needs to be adjusted according to the movement speed of the detection component 5. The maximum vertical distance of the detection head 506 in one scan is set to a value. Then, the time for the detection head 506 to reciprocate once must be greater than the time for the coated product 1 to travel that value distance. In this way, after the detection head 506 reciprocates once, its scanning detection area can partially cover the scanning detection area of ​​the previous detection head 506, thereby realizing the detection of the entire coated product 1.

[0028] like Figure 1 , 2As shown, in this embodiment, the limiting component 4 has an upper clamping plate 401 fixedly connected to both sides of its bottom. A lower clamping plate 402 is provided below the upper clamping plate 401. Fasteners 406 are vertically installed through both sides of the upper clamping plate 401 and the lower clamping plate 402. A through hole 403 is horizontally opened at the center of the lower clamping plate 402, and an adjusting screw 304 passes through the through hole 403. The upper clamping plate 401 is located above the upper crossbeam 302, and the lower clamping plate 402 is located between the upper crossbeam 302 and the lower crossbeam 303. The clamping plates are locked by fasteners 406, and the screws press the pressure plate to fit the two clamping plates together, thereby fixing the limiting component 4 on the upper crossbeam 302 and the lower crossbeam 303. The position of the corresponding limiting component 4 is adjusted so that it is kept at the edge position for coating products 1 of different widths, thereby changing the movement range of the corresponding detection head 506 to adapt to coating products 1 of various widths. The adjusting screw 304 passes through the through hole 403 so that the lower clamping plate 402 is not affected by the rotation of the adjusting screw 304.

[0029] like Figure 2 , 3 As shown, in this embodiment, the limiting component 4 is provided with a sensing head 404 facing the detection component 5. Both ends of the detection component 5 are provided with pins 505 facing the limiting component 4. The top of the limiting component 4 is provided with a wiring hole 405. A connecting wire 407 is installed inside the wiring hole 405. The other end of the connecting wire 407 passes through the support plate 301 and is connected to the reciprocating motor 305. When the detection component 5 moves close to the limiting component 4, the pin 505 contacts and inserts into the sensing head 404. After sensing by the device inside the limiting component 4, the signal is transmitted to the reciprocating motor 305 through the connecting wire 407. The connecting wire 407 on another limiting component 4 that is farther away from the reciprocating motor 305 is also attached to the crossbeam 302 and connected to the reciprocating motor 305. A certain length of the connecting wire is reserved to ensure that the adjustment position of the limiting component 4 is not pulled off. When the reciprocating motor 305 receives the information transmitted by the connecting wire 407, it immediately reverses the rotation direction of the adjusting screw 304, so that the detection component 5 immediately moves in the opposite direction.

[0030] like Figure 3 As shown, in this embodiment, the detection component 5 has a slider extending between the upper crossbeam 302 and the lower crossbeam 303, and a roller 502 is installed at the center of the slider. The detection component 5 is fixed by clamping the slider between the upper crossbeam 302 and the lower crossbeam 303. When the adjusting screw 304 rotates and drives the slider to move, the inner roller 502 of the slider contacts the top of the lower crossbeam 303, and the sliding friction is changed to rolling friction, making the movement of the detection component 5 more flexible and faster.

[0031] like Figure 3As shown, in this embodiment, springs 504 are provided at both ends of the detection component 5 facing the limiting component 4, and spring plates 503 are provided on one side of the springs 504. The spring plates 503 and the upper clamping plate 401 are aligned. When the pin 505 contacts the sensing head 404, the spring plates 503 contact the upper clamping plate 401, compressing the springs 504, reducing the movement speed of the detection component 5, thereby reducing the pressure of the detection component 5 on the limiting component 4 due to inertia, and protecting the limiting component 4 and the detection component 5 from damage due to impact.

[0032] like Figure 1 As shown, in this embodiment, a retaining ring 201 is sleeved on the surface of the roll 2, and the coated product 1 is disposed between the two retaining rings 201. The retaining rings 201 are installed and fixed on the roll 2, and the two retaining rings 201 clamp the coated product 1 to prevent the roll 2 from shifting position during winding and conveying, which would affect the change of the detection area in the middle and affect the detection structure.

[0033] Working principle: The coated product 1 is mounted on the roll 2, stretched, and one end is wound onto another roll 2. Both sides are fixed by the roll 2. The position of the limiting component 4 is adjusted to align with the edge of the coated product 1. The fastener 406 is locked to fix the limiting component 4. The reciprocating motor 305 mounted on the support plate 301 is started to drive the adjusting screw 304 to rotate. The internal thread of the threaded hole 501 drives the detection component 5 to move between the upper crossbeam 302 and the lower crossbeam 303. The detection head 506 on the detection component 5 scans the surface of the coated product 1 to detect missing coating. When the detection component 5 contacts the limiting component 4 on one side, the spring plate 503 compresses the spring 504, and the pin 505 is inserted into the sensing head 404. The information is transmitted to the reciprocating motor 305 through the connecting wire 407 on the wiring hole 405. The reciprocating motor 305 controls the adjusting screw 304 to reverse, thereby realizing the reciprocating motion of the detection component 5 on the coated product 1 for detection.

[0034] This utility model is not limited to the above-described embodiments. Anyone should know that structural changes made under the guidance of this utility model, and any technical solutions that are the same as or similar to this utility model, fall within the protection scope of this utility model. Technical aspects, shapes, and structures not described in detail in this utility model are all publicly known technologies.

Claims

1. A coating drying defect detection device, comprising: A coated product (1) and a roll (2), characterized in that the coated product (1) is wound around the roll (2) at both ends, the roll (2) is provided with support legs at both ends, a side frame (3) is provided between the support legs, a support plate (301) is installed at the top center of the side frame (3), an upper crossbeam (302) is provided between the support plates (301) near the top, a lower crossbeam (303) is provided between the support plates (301) near the bottom, and the upper crossbeam (302) and the lower crossbeam (303) are connected by a crossbeam. An adjusting screw (304) is provided at the center position. One end of the adjusting screw (304) is located on one side of the support plate (301) and a reciprocating motor (305) is provided. Limiting components (4) are provided at the upper two edges of the coated product (1) between the upper crossbeam (302) and the lower crossbeam (303). Detection components (5) are provided between the limiting components (4). A threaded hole (501) is provided through the center of the detection component (5). A detection head (506) is provided at the bottom of the limiting component (4).

2. The coating drying defect detection device according to claim 1, characterized in that, The limiting component (4) is fixedly connected to the upper clamping plate (401) on both sides of the bottom. The lower clamping plate (402) is provided below the upper clamping plate (401). Fasteners (406) are vertically installed on both sides of the upper clamping plate (401) and the lower clamping plate (402). A through hole (403) is opened horizontally at the center of the lower clamping plate (402). The adjusting screw (304) passes through the through hole (403).

3. The coating drying defect detection device according to claim 1, characterized in that, The limiting component (4) is provided with a sensing head (404) facing the detection component (5). Both ends of the detection component (5) are provided with pins (505) facing the limiting component (4). The top of the limiting component (4) is provided with a wiring hole (405). A connecting wire (407) is installed inside the wiring hole (405). The other end of the connecting wire (407) passes through the support plate (301) and is connected to the reciprocating motor (305).

4. The coating drying defect detection device according to claim 1, characterized in that, The detection component (5) has a slider extending between the upper crossbeam (302) and the lower crossbeam (303), and a roller (502) is installed at the center of the slider.

5. The coating drying defect detection device according to claim 3, characterized in that, The detection component (5) has springs (504) at both ends of its top facing the limiting component (4), and a spring plate (503) is provided on one side of the spring (504). The spring plate (503) and the upper clamping plate (401) are aligned.

6. The coating drying defect detection device according to claim 1, characterized in that, The surface of the roll (2) is fitted with retaining rings (201), and the coated product (1) is disposed between the two retaining rings (201).

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