Flatness testing device for impregnated paper production line
By designing a flatness testing device for impregnated paper production lines, and utilizing detection components to adjust the position of the pressure bar and sensor detection, the problems of warping and air bubbles during the transportation of impregnated paper were solved, thereby improving the yield rate and product quality.
Patent Information
- Application Number
- CN202520466530.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-18
- Publication Date
- 2026-02-10
- Estimated Expiration
- 2035-03-18
AI Technical Summary
Impregnated paper may curl upwards at the ends and have surface air bubbles during transportation, preventing it from passing smoothly through the calender and affecting the yield rate.
A flatness testing device for an impregnated paper production line was designed. By adjusting the position of the pressure bar through the detection components and using a photosensitive sensor and a distance sensor to detect end warping and air bubbles in the impregnated paper, the flatness of the impregnated paper is ensured. The device includes a motor-driven rotating rod and a center rod, which work together with a clamping plate and a spring structure to achieve flat conveying of the impregnated paper.
The yield rate of impregnated paper was improved. By using the detection component, the impregnated paper was ensured to pass smoothly through the pressure bar, reducing the impact of surface bubbles and improving product quality.
Smart Images

Figure CN223896797U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to the technical field of impregnated paper, especially to a flatness testing device for impregnated paper production line. BACKGROUND
[0002] Impregnated paper needs to pass through a calendering machine in the transportation process. The pressure rod on the calendering machine rolls and flattens the impregnated paper. The impregnated paper production line uses a belt conveyor for transportation. The gap between the conveying belt of the belt conveyor and the pressure rod is only slightly larger than the thickness of the impregnated paper. Due to production process problems, the end edges of some impregnated paper are raised. Therefore, the impregnated paper cannot smoothly pass under the pressure rod. With the operation of the conveying belt, the impregnated paper is pushed, and the end part of the impregnated paper continues to move upwards on the outer wall of the pressure rod. This affects the overall transportation of the impregnated paper.
[0003] Due to production process problems, bubbles may appear on the surface of the impregnated paper. The bubbles on the surface of the impregnated paper cannot be completely distinguished by the naked eye. After passing through the calendering machine, the impregnated paper can meet the factory standard. If the bubbles are not detected in time, the yield of the impregnated paper is reduced. SUMMARY
[0004] The purpose of the present application is to provide a flatness testing device for impregnated paper production line to solve the problems raised in the background.
[0005] To achieve the above-mentioned purpose, the present application provides the following technical solution:
[0006] A flatness testing device for impregnated paper production line, comprising a conveyor, the main body of the conveyor is composed of a conveying belt and two mounting plates, and a detection assembly mounted on the two mounting plates, the conveying belt is movably installed between the two mounting plates, a sliding groove is formed through the outer wall of each of the two mounting plates, a pressure rod is movably installed between the two mounting plates, a center rod is fixedly installed at both ends of the pressure rod, the center rod is arranged inside the sliding groove, a motor is fixedly installed on the outer wall of each of the two mounting plates, a rotating rod is fixedly installed on the output end of the motor, the shape of the rotating rod is an arc-shaped bent rod, and the outer wall of the rotating rod is in abutment with the center rod.
[0007] Preferably, clamping plates are symmetrically arranged on both sides of the sliding groove on the mounting plate, the clamping plates are fixedly connected with the outer wall of the center rod, a light sensor is arranged above the pressure rod, the light sensor is fixedly connected with the inner wall of the mounting plate, a distance measuring sensor is fixedly installed on the outer wall of the mounting plate, and the distance measuring sensor is arranged above the clamping plate.
[0008] Preferably, the slide groove is composed of a straight groove and an inclined groove connected together. The straight groove is parallel to the upper edge of the mounting plate, and the inclined groove is inclined upward with its top end close to the top edge of the mounting plate. The starting end of the straight groove is located below the ranging sensor. A slot is formed on the outer wall of the mounting plate, located on one side of the slide groove and close to the straight groove. The slot is connected to the starting end of the straight groove in the slide groove. A top rod is embedded at the connection between the slot and the slide groove. A fitting plate is embedded inside the slot. The top rod is fixedly connected to the fitting plate. A spring is installed between the fitting plate and the inner wall of the slot away from the slide groove.
[0009] The beneficial effects of this utility model are: by setting up a detection component, the position of the pressure bar can be changed to help the dipped paper with the upturned end to pass smoothly through the pressure bar. The range of motion of the clamp is sensed by the distance sensor, thereby detecting and locating air bubbles on the dipped paper and improving the yield of dipped paper. Attached Figure Description
[0010] Figure 1 This is a schematic diagram of the overall structure of this utility model;
[0011] Figure 2 In this utility model Figure 1 A magnified schematic diagram of the structure of region A;
[0012] Figure 3 This is a schematic diagram of the working state of the detection component in this utility model;
[0013] Figure 4 This is a schematic diagram of the installation structure of the sliding groove and the slot in this utility model.
[0014] In the diagram: 1. Conveyor belt; 2. Mounting plate; 3. Pressure bar; 4. Slide groove; 5. Motor; 6. Photosensitive sensor; 7. Center rod; 8. Distance sensor; 9. Rotating rod; 10. Groove; 11. Spring; 12. Clamping plate; 13. Fitting plate; 14. Top rod. Detailed Implementation
[0015] The preferred embodiments of this utility model will now be described in detail with reference to the accompanying drawings, so that the advantages and features of this utility model can be more easily understood by those skilled in the art, thereby providing a clearer and more definite definition of the scope of protection of this utility model. The directional terms mentioned in this utility model, such as "up," "down," "front," "back," "left," "right," "top," and "bottom," are only for reference to the accompanying drawings. Therefore, the directional terms used are for the purpose of explaining and understanding this utility model, and not for limiting this utility model.
[0016] like Figures 1-4The flatness testing device for an impregnated paper production line shown includes a conveyor. The main body of the conveyor consists of a conveyor belt 1 and two mounting plates 2, as well as a detection component mounted on the two mounting plates 2. The conveyor belt 1 is movably installed between the two mounting plates 2. The outer walls of the two mounting plates 2 are provided with through grooves 4. A pressure rod 3 is movably installed between the two mounting plates 2. A center rod 7 is fixedly installed at both ends of the pressure rod 3. The center rod 7 passes through the groove 4. A motor 5 is fixedly installed on the outer walls of the two mounting plates 2. A rotating rod 9 is fixedly installed at the output end of the motor 5. The rotating rod 9 is in the shape of an arc-shaped bent rod, and the outer wall of the rotating rod 9 abuts against the center rod 7.
[0017] Clamping plates 12 are symmetrically arranged on both sides of the sliding groove 4 on the mounting plate 2. The clamping plates 12 are fixedly connected to the outer wall of the center rod 7. A photosensitive sensor 6 is arranged above the pressure rod 3. The photosensitive sensor 6 is fixedly connected to the inner wall of the mounting plate 2. A distance measuring sensor 8 is fixedly installed on the outer wall of the mounting plate 2. The distance measuring sensor 8 is arranged above the clamping plates 12.
[0018] The slide 4 consists of a straight groove and an inclined groove connected together. The straight groove is parallel to the upper edge of the mounting plate 2, and the inclined groove is angled upward with its top end close to the top edge of the mounting plate 2. The starting end of the straight groove of the slide 4 is located below the ranging sensor 8. A slot 10 is opened on the outer wall of the mounting plate 2. The slot 10 is opened on one side of the slide 4 and close to the straight groove of the slide 4. The slot 10 is connected to the starting end of the straight groove in the slide 4. A top rod 14 is embedded at the connection between the slot 10 and the slide 4. A fitting plate 13 is embedded inside the slot 10. The top rod 14 is fixedly connected to the fitting plate 13. A spring 11 is installed between the fitting plate 13 and the inner wall of the slot 10 away from the slide 4.
[0019] Example: The impregnated paper is conveyed on the conveyor belt 1. As the impregnated paper passes under the pressure bar 3, if the edge of the impregnated paper curls upwards, it cannot smoothly press against the gap between the pressure bar 3 and the conveyor belt 1. The curled edge of the impregnated paper will adhere to the outer wall of the pressure bar 3. As the conveyor belt 1 moves, the impregnated paper is pushed, and the end continues to adhere to the outer wall of the pressure bar 3 and move upwards. The edge of the impregnated paper will block the light sensor 6. With the light source of the light sensor 6 blocked, the light sensor 6 emits an electrical signal, starting the motor 5 and driving the rotating rod. Rotating rod 9 abuts against center rod 7, causing center rod 7 to slide inside chute 4. Two clamping plates 12 adhere to the outer walls of mounting plate 2 on both sides, preventing center rod 7 from shifting during sliding. Rotating rod 9 moves center rod 7 to the top of chute 4, causing pressure rod 3 to move, increasing the distance between pressure rod 3 and conveyor belt 1, allowing the upturned impregnated paper to pass through. Then, motor 5 drives rotating rod 9 back to its initial position, and center rod 7 resets pressure rod 3. Initially, top rod 14 extends into chute 4, abutting against the outer wall of center rod 7. During reset, the weight of pressure rod 3 causes center rod 7 to descend at a faster speed. To prevent damage from collision between center rod 7 and the inner wall of chute 4, top rod 14 contacts center rod 7. Spring 11 between fitting plate 13 and end of slot 10 buffers the impact force of center rod 7. Changing the position of pressure rod 3 helps the upturned impregnated paper pass smoothly through pressure rod 3.
[0020] If the air bubbles on the surface of the impregnated paper are too large, when it passes the pressure bar 3, it will exert an upward force on the pressure bar 3 upon contact, causing the pressure bar 3 to move upward to a certain extent. If the upward movement is too large, the upper edge of the clamping plate 12 will approach the distance sensor 8. After reaching the detection range of the distance sensor 8, the distance sensor 8 will send an electrical signal, causing the conveyor belt 1 to stop transmitting, and the operator will return to inspect this batch of impregnated paper.
[0021] It should be noted that the parts not covered in this utility model are the same as or can be implemented using existing technology; the various drives in this utility model can be implemented by corresponding power structures such as cylinders, oil cylinders, electric cylinders, and motors in conjunction with connecting rods, guide rods, etc., and are not limited to the structures described in the specification and the drawings.
[0022] The embodiments described above are merely examples of several implementations of this utility model, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the utility model patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this utility model, and these modifications and improvements all fall within the protection scope of this utility model.
Claims
1. A flatness testing device for an impregnated paper production line, comprising a conveyor, the main body of which consists of a conveyor belt (1) and two mounting plates (2), and a detection component mounted on the two mounting plates (2), characterized in that: The conveyor belt (1) is movably installed between two mounting plates (2). The outer walls of the two mounting plates (2) are provided with through grooves (4). A pressure rod (3) is movably installed between the two mounting plates (2). A center rod (7) is fixedly installed at both ends of the pressure rod (3). The center rod (7) passes through the groove (4). A motor (5) is fixedly installed on the outer walls of the two mounting plates (2). A rotating rod (9) is fixedly installed at the output end of the motor (5). The rotating rod (9) is in the shape of an arc-shaped bent rod. The outer wall of the rotating rod (9) abuts against the center rod (7).
2. The flatness testing device for impregnated paper production line according to claim 1, characterized in that: The mounting plate (2) has symmetrical clamping plates (12) on both sides of the sliding groove (4). The clamping plates (12) are fixedly connected to the outer wall of the center rod (7). A photosensitive sensor (6) is provided above the pressure rod (3). The photosensitive sensor (6) is fixedly connected to the inner wall of the mounting plate (2). A distance measuring sensor (8) is fixedly installed on the outer wall of the mounting plate (2). The distance measuring sensor (8) is located above the clamping plate (12).
3. The flatness testing device for impregnated paper production line according to claim 2, characterized in that: The slide (4) is composed of a straight groove and an oblique groove connected together. The straight groove is set parallel to the upper edge of the mounting plate (2), and the oblique groove is set obliquely upward with its top end close to the top edge of the mounting plate (2). The starting end of the straight groove of the slide (4) is located below the ranging sensor (8).
4. The flatness testing device for impregnated paper production line according to claim 3, characterized in that: The outer wall of the mounting plate (2) is provided with a slot (10), which is located on one side of the slide groove (4) and close to the straight groove of the slide groove (4). The slot (10) is connected to the starting end of the straight groove in the slide groove (4).
5. The flatness testing device for impregnated paper production line according to claim 4, characterized in that: A top rod (14) is embedded in the connection between the slot (10) and the slide (4). A fitting plate (13) is embedded inside the slot (10). The top rod (14) is fixedly connected to the fitting plate (13). A spring (11) is installed between the fitting plate (13) and the inner wall of the end of the slot (10) away from the slide (4).