A PET heat shrink tubing testing device

Abstract

This utility model discloses a PET heat shrink tubing inspection device, which includes a cabinet with an internal partition dividing the cabinet into an upper and lower space. The upper space has symmetrical openings on both sides. Side support plates are mounted on the partition, with a set of straightening rollers on one side. A feed roller is located on the side of the side support plate near the straightening rollers. A guide rail corresponding to the feed roller is located on the top surface of the side support plate. A U-shaped frame is located on the side of the side support plate away from the straightening rollers, and a labeling machine is mounted on the U-shaped frame. A line scanner is mounted on the side wall of the U-shaped frame. An encoder is located on the side support plate near the straightening rollers. An infrared light source is located in the lower center of the side support plate, facing the lens of the line scanner. Multiple feed rollers are symmetrically arranged vertically on both sides of the infrared light source. This utility model can detect and mark defective products after production but before winding.

Description

Technical Field

[0001] The utility model relates to the technical field of mechanical equipment, and particularly relates to a PET heat shrinkable sleeve detection device. Background Art

[0002] At present, many PET heat shrinkable sleeve detection materials on the market are wound into products for sale after being produced. However, it is very difficult to judge the quality of the wound products. It is difficult to judge the quality of the wound products by the human eye. Most of the appearance of the wound products is invisible. Therefore, a detection device is needed to detect and mark the defective products after production and before winding.

[0003] Because it is impossible to ensure that all the products are qualified during the production process of the PET heat shrinkable sleeve detection materials, after the heat shrinkable sleeve detection materials are wound, the joints in the circumferential direction are uneven, and there are often defects such as uneven shrinkage of the heat shrinkable film at the top of the outer tube, burrs, cracks, stains, warping, bubbles, gaps, sand grains, and uneven color of the pits. The traditional detection method is manual detection, and there are problems of low detection efficiency and inaccurate detection during the detection process due to human intervention. Summary of the Invention

[0004] The purpose of the utility model is to aim at the above-mentioned deficiencies of the prior art and provide a PET heat shrinkable sleeve detection device, which can detect and mark the defective products after the production of the PET heat shrinkable sleeve detection materials and before winding.

[0005] The technical scheme adopted by the utility model is as follows: A PET heat shrink tubing testing device includes a cabinet and a set of conveyor rollers. The cabinet interior is divided into an upper and lower space by a partition. The upper space has symmetrical openings on both sides of the partition. A set of conveyor rollers is located on each side of one of the openings. The partition includes a side support plate and a set of straightening rollers. One set of straightening rollers is located on one side of the side support plate. A belt feed roller is located on the side of the side support plate closest to the straightening rollers. A roller guide rail is located on the top surface of the side support plate, and the end of the belt feed roller is aligned with the roller guide rail. A U-shaped frame is located on the side of the side support plate away from the straightening rollers. A cylinder is mounted on the U-shaped frame, and a support profile is located at the lower telescopic end of the cylinder. A labeling machine is located at the end of the support profile. A Y-axis is located on the side wall of the U-shaped frame. The adjustment plate has a Z-axis adjustment plate on the Y-axis adjustment plate, a line scan camera on the Z-axis adjustment plate, a camera connection side plate on the outer wall of the Z-axis adjustment plate, and an encoder on the side support plate near the correction wheel. A rodless cylinder is located in the middle of the lower part of the side support plate, and an upward-emitting infrared light source is located at the telescopic end of the upper part of the rodless cylinder. The infrared light source is directly opposite the lens of the line scan camera. On the left and right sides of the infrared light source, there are multiple feed rollers arranged vertically. The feed rollers are located in the middle of the side support plate. The feed pressure roller is located above the left feed roller. Above the right feed roller and located on the side support plate, there is an output pressure roller. The end of the output pressure roller is slidably connected to the pressure roller guide rail.

[0006] Preferably, the side support plate is equipped with a motor that drives the belt roller, the correction roller and the conveyor roller to rotate.

[0007] Preferably, the upper space of the cabinet has fixed plates on both the front and back sides installed using angle steel frames, with a monitor and keyboard / mouse holder respectively installed on the front fixed plate.

[0008] Preferably, a vision inspection system is provided on the side support plate, and the vision inspection system is connected to an encoder, a line scan camera, a cylinder, a labeling machine, an infrared light source, a rodless cylinder and a display through wiring.

[0009] Preferably, the infeed pressure roller is located above the first infeed roller on the left; the outlet pressure roller is located above the middle infeed roller on the right.

[0010] Preferably, both the cylinder and the rodless cylinder are equipped with sensors, which are connected to the vision inspection system; the cylinder model is PTBR16X20SR(0)+(DMSG-N-2); the rodless cylinder model is RMTL20X100SA(0)+(DMSG-N-2).

[0011] Preferably, three feed rollers are symmetrically arranged vertically on the left and right sides of the infrared light source.

[0012] Preferably, the lower space of the cabinet is equipped with cabinet doors.

[0013] Preferably, the bottom of the cabinet is equipped with casters.

[0014] Preferably, the recognition end at the top of the encoder is mounted on the side support plate, and the support base at the bottom of the encoder is mounted on the partition plate.

[0015] The advantages of this invention are as follows: The equipment is small in size and occupies little space, making it easy to place in the middle of a strip production line. This invention can identify and mark defective areas of the product before it is produced as a wound product, facilitating the identification of defects by inspection personnel and preventing defective products from being mixed with good products and becoming indistinguishable. Attached Figure Description

[0016] Figure 1 This is an external schematic diagram of the present invention; Figure 2 This is a schematic diagram of the internal structure of this utility model; In the diagram: 1. Cabinet; 11. Fouma wheel; 16. Angle steel frame; 108. Support profile; 109. Cylinder; 112. U-shaped frame; 115. Labeling machine; 119. Correction wheel; 127. Encoder; 2. Partition; 26. Keyboard and mouse holder; 3. Cabinet door; 35. Y-axis adjustment plate; 38. Camera connection side plate; 4. Opening; 45. Z-axis adjustment plate; 46. Lens; 47. Line scan camera; 49. Rodless cylinder; 5. Conveyor roller; 50. Infrared light source; 53. Side support plate; 54. Infeed roller; 58. Pressure roller guide rail; 59. Infeed pressure roller; 72. Outfeed pressure roller; 90. Monitor; 96. PET heat shrink tubing inspection product. Detailed Implementation

[0017] The present invention will be further described below with reference to the accompanying drawings and embodiments, but the scope of protection of the present invention is not limited to the following examples: like Figure 1-2 As shown, the PET heat shrink tubing testing equipment of this utility model includes a cabinet 1 and a set of conveyor rollers 5. The cabinet 1 is equipped with a partition 2, which divides the interior of the cabinet 1 into an upper space and a lower space. The front and rear fixed plates 6 of the upper space of the cabinet 1 are installed by angle steel frames 16. The front fixed plate 6 is equipped with a display 90 and a keyboard and mouse holder 26, respectively. The lower space of the cabinet 1 is matched with a cabinet door 3. The left and right side plates of the upper space of the cabinet 1 are symmetrically opened with openings 4. A set of conveyor rollers 5 are located on both sides of the openings 4 for conveying the PET heat shrink tubing testing product 96.

[0018] The partition 2 of this utility model is provided with a side support plate 53 and a set of correction wheels 119. The set of correction wheels 119 is located on one side of the side support plate 53. The correction wheels 119 are used to correct and adjust the position of the PET heat shrink tubing inspection product 96 to prevent it from deviating and affecting the inspection. A belt inlet pressure roller 59 is provided on the side of the side support plate 53 near the correction wheels 119. A pressure roller guide rail 58 is provided on the top surface of the side support plate 53. The end of the belt inlet pressure roller 59 is correspondingly set with the pressure roller guide rail 58. The belt inlet pressure roller 59 is in a downward pressure state during equipment operation, but a gap of material thickness is maintained in the middle to prevent deviation during operation. The pressure roller guide rail is used to cooperate with the pressure roller cylinder (this pressure roller cylinder is set on the belt inlet pressure roller 59) to rise and fall after the equipment is powered. The cylinder sensor sends a signal to the vision inspection system, and the vision inspection system controls the rising or falling action of the pressure roller cylinder.

[0019] The side support plate 53 of this utility model has a U-shaped frame 112 on the side away from the correction wheel 119. A cylinder 109 is installed on the U-shaped frame 112. A support profile 108 is installed at the telescopic end of the lower part of the cylinder 109. A labeling machine 115 is installed at the end of the support profile 108. The labeling machine 115 is connected to a vision inspection system installed on the side support plate 53 through a circuit. The vision inspection system is connected to an encoder 127, a line scan camera 47, a cylinder 109, a labeling machine 115, an infrared light source 50, a rodless cylinder 49, and a display 90 through a circuit. When the equipment is running, the infrared light source 50 illuminates the image, which drives the encoder 127 to rotate and triggers the line scan camera 47 to collect an image. The vision inspection system obtains the image from the line scan camera 47, analyzes and processes the obtained image, and displays the processed result on the operating system interface using the display 90. At the same time, the image analysis results are transmitted to the labeling machine 115. If an NG signal is received, the labeling machine 115 will apply the label; if an OK signal is received, the labeling machine 115 will not take any action.

[0020] The U-shaped frame 112 of this invention has a Y-axis adjustment plate 35 on its side wall, a Z-axis adjustment plate 45 on the Y-axis adjustment plate 35, a camera connection side plate 38 on the outer wall of the Z-axis adjustment plate 45, and a line scan camera 47 on the camera connection side plate 38. The line scan camera 47 is used to scan and inspect the appearance of the PET heat shrink tubing product 96. To ensure the accuracy of the inspection results, the line scan camera 47 needs to be adjusted in six spatial degrees of freedom. The line scan camera 47 can be rotated along the Z-axis, X-axis, and Y-axis. The adjustment of the six spatial degrees of freedom of the line scan camera 47 is to ensure that the line scan camera 47 is parallel to the width direction of the product and perpendicular to the direction of product movement, so that the product is located at the center of the field of view of the line scan camera 47. After the line scan camera 47 is adjusted, it can be used for normal inspection. The inspection results are synchronously output to the industrial control computer (PC), which uses appropriate software to distinguish between good and defective products.

[0021] An encoder 127 is provided on the side support plate 53 of this utility model and near the correction wheel 119. The recognition end of the encoder 127 is installed on the side support plate 53, and the support base of the encoder 127 is installed on the partition plate 2. The encoder 127 is used to identify the position of the PET heat shrink tubing detection product 96 and send the position information of the PET heat shrink tubing detection product 96 to the industrial control computer. The feed roller 54 is pressed by the pressure roller 59 with a certain micro pressure to prevent the feed roller 54 from slipping and causing inaccurate detection position.

[0022] A rodless cylinder 49 is provided at the middle of the lower part of the side support plate 53 of this utility model. The telescopic end of the upper part of the rodless cylinder 49 is provided with an upward-emitting infrared light source 50. The infrared light source 50 is directly opposite the lens 46 of the line scan camera 47. The infrared light source 50 moves upward and close to the PET heat shrink tubing inspection product 96 under the drive of the rodless cylinder 49. Similarly, the cylinder sensor sends a signal to the vision inspection system, which controls the action of the cylinder 109, thereby controlling the movement of the infrared light source 50. Multiple feed rollers 54, preferably three, are symmetrically arranged on the left and right sides of the infrared light source 50. The feed rollers 54 are located in the middle of the side support plate 53. The feed pressure roller 59 is located above the feed roller 54 on the left. The feed pressure roller 72 is located above the feed roller 54 on the right and on the side support plate 53. Specifically, the feed pressure roller 59 is located above the first feed roller 54 on the left. The feed pressure roller 72 is located above the middle feed roller 54 on the right. The end of the pressure roller 72 is slidably connected to the pressure roller guide rail 58.

[0023] The side support plate 53 of this utility model is equipped with a motor that drives the belt roller 54, the correction roller 119 and the conveyor roller 5 to rotate.

[0024] Both cylinder 109 and rodless cylinder 49 of this invention are equipped with sensors, which are connected to a vision inspection system. The model of cylinder 109 is PTBR16X20SR(0)+(DMSG-N-2); the model of rodless cylinder 49 is RMTL20X100SA(0)+(DMSG-N-2).

[0025] The cabinet 1 of this utility model is equipped with a fuma wheel 11 at the bottom, which makes it easy to move to the middle of the belt production line.

[0026] The usage process of this utility model is as follows: The position of the PET heat shrink tubing inspection product 96 is adjusted by roller 119 to prevent product deviation and affect inspection. The PET heat shrink tubing inspection product 96 is pressed down by the feed roller 59 with a certain slight pressure as it passes through the feed roller 54. The feed roller 59 is in a downward pressing state during equipment operation, but a gap sufficient for material thickness is maintained in the middle to prevent deviation during operation. The roller guide 59 is used to coordinate with the roller cylinder (located on the feed roller 59) to rise and fall after the equipment is powered on. The cylinder sensor sends a signal to the vision inspection system, which controls the rising or falling action of the roller cylinder. After the PET heat shrink tubing inspection product 96 passes through the inspection area, the infrared light source 50 moves upward and closer to the product under the drive of the rodless cylinder 49. The line scan camera 47 begins scanning and inspection. After the line scan camera 47 is adjusted, normal inspection can begin. The inspection results are simultaneously output to the industrial control computer, which uses the corresponding vision inspection system to distinguish between good and defective products. After the visual inspection system identifies the defective location through the encoder 127, it sends a signal to the labeling machine 115. The labeling machine 115 will automatically mark the corresponding location so that the inspection personnel can discover the defect in time and deal with it in time to reduce the loss of defects in production.

[0027] Other undescribed parts of this utility model are the same as those in the prior art.

Claims

1. A PET heat shrink sleeve inspection apparatus characterized by It includes a cabinet (1) and a set of conveyor rollers (5). The cabinet (1) is provided with a partition (2) inside, which divides the interior of the cabinet (1) into an upper space and a lower space. The left and right side panels of the upper space of the cabinet (1) are symmetrically provided with openings (4). A set of conveyor rollers (5) are respectively located on both sides of the openings (4). The partition (2) is provided with a side support plate (53) and a set of straightening wheels (119). The set of straightening wheels (119) is located on one side of the side support plate (53), and the side support plate (53) is close to the straightening wheels. A belt-feeding pressure roller (59) is provided on one side of the side support plate (53), and a pressure roller guide rail (58) is provided on the top surface of the side support plate (53). The end of the belt-feeding pressure roller (59) is correspondingly arranged with the pressure roller guide rail (58). A U-shaped frame (112) is provided on the side of the side support plate (53) away from the correction roller (119). A cylinder (109) is provided on the U-shaped frame (112). A support profile (108) is provided at the telescopic end of the lower part of the cylinder (109). A labeling machine (115) is provided at the end of the support profile (108). The U-shaped frame (112) A Y-axis adjusting plate (35) is provided on the side wall of the device, and a Z-axis adjusting plate (45) is provided on the Y-axis adjusting plate (35). A camera connecting side plate (38) is provided on the outer wall of the Z-axis adjusting plate (45), and a line scan camera (47) is provided on the camera connecting side plate (38). An encoder (127) is provided on the side support plate (53) near the correction wheel (119). A rodless cylinder (49) is provided in the middle of the lower part of the side support plate (53), and an upward-emitting infrared light source (50) is provided at the telescopic end of the upper part of the rodless cylinder (49). The infrared light source (50) and the lens (46) of the line scan camera (47) are positioned opposite each other; multiple feed rollers (54) are symmetrically arranged vertically on the left and right sides of the infrared light source (50). The feed rollers (54) are located in the middle of the side support plate (53). The feed pressure roller (59) is located above the feed roller (54) on the left side. The feed pressure roller (72) is located above the feed roller (54) on the right side and on the side support plate (53). The end of the feed pressure roller (72) is slidably connected to the pressure roller guide rail (58).

2. The PET heat shrink sleeve inspection apparatus of claim 1, wherein The side support plate (53) is equipped with a motor that drives the feed roller (54), the correction roller (119) and the conveyor roller (5) to rotate.

3. The PET heat shrink sleeve inspection apparatus of claim 2, wherein The upper space of the cabinet (1) has fixed plates (6) on the front and back sides installed by angle steel frames (16). The front fixed plate (6) is equipped with a monitor (90) and a keyboard and mouse holder (26).

4. The PET heat shrink sleeve inspection apparatus of claim 3, wherein The side support plate (53) is equipped with a vision inspection system, which is connected to the encoder (127), the line scan camera (47), the cylinder (109), the labeling machine (115), the infrared light source (50), the rodless cylinder (49) and the display (90) respectively via lines.

5. The PET heat shrink sleeve inspection apparatus of claim 1, wherein The feed roller (59) is located above the first feed roller (54) on the left; the output roller (72) is located above the middle feed roller (54) on the right.

6. The PET heat shrink sleeve inspection apparatus of claim 4, wherein Both the cylinder (109) and the rodless cylinder (49) are equipped with sensors, which are connected to the vision inspection system; the model of the cylinder (109) is PTBR16X20SR(0)+(DMSG-N-2); the model of the rodless cylinder (49) is RMTL20X100SA(0)+(DMSG-N-2).

7. The PET heat shrink sleeve inspection apparatus of claim 1, wherein The infrared light source (50) has three feed rollers (54) arranged vertically on its left and right sides.

8. The PET heat shrink sleeve inspection apparatus of claim 1, wherein The lower space of the cabinet (1) is fitted with cabinet doors (3).

9. The PET heat shrink sleeve inspection apparatus of claim 1, wherein The bottom of the cabinet (1) is equipped with a fuma wheel (11).

10. The PET heat shrink sleeve inspection apparatus of claim 1, wherein The recognition end at the top of the encoder (127) is mounted on the side support plate (53), and the support base at the bottom of the encoder (127) is mounted on the partition plate (2).

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