PVC printing film flatness detection device

Abstract

The utility model discloses a PVC printing film flatness detection device comprising a detection bench, four corners of the bottom of the detection bench are provided with support columns, one end of the detection bench is provided with a winding assembly, the other end of the detection bench is provided with an unwinding assembly, the top of the detection bench is symmetrically provided with guide assemblies, and the middle parts of the guide assemblies at two sides are provided with detection assemblies in a lifting manner. A lifting assembly used for driving the detection assembly to ascend and descend is arranged on the side edge of the detection table. The PVC printing film to be detected is fixed to the middle of the unwinding assembly, then guided through the guide assembly and finally wound to the middle of the winding assembly, then the lifting assembly is controlled to drive the detection assembly to descend so that the detection assembly can abut against the PVC printing film all the time, the winding assembly is started to drive the PVC printing film to be conveyed, and then the conveyed PVC printing film is in a straightened state all the time. And the detection assembly can conveniently and comprehensively detect the conveyed PVC printing film, the detection efficiency is improved, and the labor intensity of workers is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of PVC printing film flatness detection, in particular to a PVC printing film flatness detection device. Background Art

[0002] The main component of PVC is polyvinyl chloride, which is slightly yellow, translucent and shiny. With the development of the times, PVC is gradually winning people's favor with its good performance, simple process and many other advantages, and has been accepted and recognized by more and more people. In the use of PVC film, different use environments have different requirements on the precision of PVC film. Therefore, after the production of PVC film, it is necessary to test its flatness. The existing technology generally performs manual testing, which is unable to perform comprehensive testing on PVC film, and the labor intensity of workers is high and the detection efficiency is low. Utility Model Content

[0003] The utility model aims to provide a PVC printed film flatness detection device to solve the problems of being unable to perform comprehensive detection on the PVC film and having low detection efficiency, etc., which are proposed in the above-mentioned background technology.

[0004] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a PVC printed film flatness detection device, comprising a detection platform, support columns are provided at the four corners of the bottom of the detection platform, a winding assembly is provided at one end of the detection platform, and an unwinding assembly is provided at the other end of the detection platform. Guide assemblies are symmetrically provided on the top of the detection platform, and detection assemblies are provided in the middle of the guide assemblies on both sides for lifting and lowering, and a lifting assembly for driving the detection assembly to lift and lower is provided on the side of the detection platform.

[0005] Preferably, the winding assembly includes a mounting frame symmetrically arranged at one end of the detection platform, and winding rollers are rotatably arranged in the middle of the mounting frame on both sides, and the mounting frame is provided with a motor with an output end fixedly connected to the winding shaft.

[0006] Preferably, the unwinding assembly includes a mounting frame 2 symmetrically arranged at the other end of the detection platform, and unwinding rollers are rotatably arranged in the middle of the mounting frame 2 on both sides.

[0007] Preferably, the guide assembly includes a mounting plate symmetrically arranged on one side of the top of the detection platform, and a guide shaft is rotatably arranged in the middle of the mounting plates on both sides.

[0008] Preferably, the detection assembly includes a detection frame that is lifted and lowered on the top of the detection platform, a number of guide holes are symmetrically provided on the top of the detection frame, a connecting frame is lifted and lowered in the middle of the guide holes, a roller is rotatably provided at the bottom of the connecting frame, the middle of the connecting frame is connected to the detection frame through a spring, the guide holes distributed along the width direction of the detection frame form a group, and a pull rod is commonly connected to the top of the connecting frame in the middle of each group of guide holes, a guide slide plate is symmetrically provided on the top of the detection frame, a guide slide groove for installing the pull rod is provided in the middle of the guide slide plate, the detection frame is provided with a mounting block corresponding to the guide slide plate, the mounting block is provided with a tension sensor, and one end of the tension sensor is fixedly connected to the end of the pull rod through a connecting rod.

[0009] As a preference, each group of guide holes is staggeredly distributed to facilitate the roller to perform comprehensive inspection of the transmitted PVC printed film.

[0010] Preferably, the detection frame is U-shaped, with a mounting groove at the bottom of one end of the detection frame, a cutting knife is provided in the mounting groove through bolts, a slope surface is provided at the bottom of the other end of the detection frame, an air guide groove is provided near the middle of the slope surface, a plurality of exhaust holes are provided on the slope surface connected to the air guide groove, and the detection frame is provided with an air inlet head for connecting the air guide groove to an external air source.

[0011] Preferably, the lifting assembly includes a lifting frame symmetrically arranged in the middle of both sides of the detection platform, a screw rod is rotatably arranged in the middle of the lifting frame, a mounting block for fixing the detection frame is threadedly connected in the middle of the screw rod, a transmission wheel is arranged on the top of the screw rod, and the transmission wheels on both sides are connected by chain transmission, and a motor 2 is provided at the bottom of the lifting frame, the output shaft being fixedly connected to the screw rod on one side.

[0012] Beneficial effects of the utility model:

[0013] 1. Fix the PVC printed film with detection in the middle of the unwinding component, guide it through the guide component, and finally wind it to the middle of the winding component. Then control the lifting component to drive the detection component to descend, so that it is always in close contact with the PVC printed film. Then start the winding component to drive the PVC printed film to be transmitted, so that the transmitted PVC printed film is always in a straight state, which is convenient for the detection component to perform comprehensive detection on the transmitted PVC printed film, improve detection efficiency, and reduce manual labor intensity.

[0014] 2. The detection frame is driven down by the lifting component, so that the roller and the transmitted PVC printed film are always pressed against the compression spring, so that the transmitted PVC printed film is always in a straight state, and the value of the tension sensor in this state is set to zero. When the thickness of the transmitted PVC printed film is inconsistent, the thicker part will squeeze the roller, and the connecting frame will further compress the spring to rise, so that the pull rod drives the connecting rod to rise, and then a certain tension is generated on the tension sensor. The thinner part of the roller will drop by its own weight, and then the spring will push the connecting frame down, and the pull rod will drive the connecting rod to drop. In the process of lifting the connecting rod, the value of the electrical signal transmitted by the tension sensor changes, and then the flatness of the PVC printed film is detected by observing the data transmitted by the electrical signal of the tension sensor.

[0015] 3. By staggering the distribution of each group of guide holes, the width of the line contact between the roller at the bottom of the detection frame and the surface of the PVC printed film is consistent with the width of the PVC printed film, thereby achieving a comprehensive detection of the PVC printed film and improving the detection effect of the flatness of the PVC printed film. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a schematic diagram of a three-dimensional structure from a first viewing angle of an embodiment of the utility model;

[0017] Figure 2 A schematic diagram of a second perspective three-dimensional structure of an embodiment of the utility model;

[0018] Figure 3 It is a schematic diagram of the enlarged structure of point A of an embodiment of the utility model.

[0019] In the figure: 1. detection table; 2. support column; 3. winding assembly; 31. mounting frame 1; 32. winding roller; 33. motor 1; 4. unwinding assembly; 41. mounting frame 2; 42. unwinding roller; 5. guide assembly; 51. mounting plate; 52. guide shaft; 6. detection assembly; 61. detection frame; 62. guide hole; 63. connecting frame; 64. roller; 65. spring; 66. pull rod; 67. guide slide plate; 671. guide slide groove; 68. mounting block; 69. tension sensor; 610. connecting rod; 7. lifting assembly; 71. lifting frame; 72. lead screw; 73. mounting block; 74. transmission wheel; 75. chain; 76. motor 2; 8. mounting groove; 9. cutting knife; 10. slope surface; 11. air guide groove; 12. exhaust hole; 13. air intake head. DETAILED DESCRIPTION

[0020] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in 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.

[0021] See also Figures 1 to 3 The utility model provides a PVC printed film flatness detection device, including a detection platform 1, wherein the bottom four corners of the detection platform 1 are provided with support columns 2, one end of the detection platform 1 is provided with a winding component 3, and the other end of the detection platform 1 is provided with an unwinding component 4, and the top of the detection platform 1 is symmetrically provided with guide components 5, and the middle parts of the guide components 5 on both sides are provided with detection components 6 for lifting and lowering. The side of the detection platform 1 is provided with a lifting component 7 for driving the detection component 6 to lift and lower. The PVC printed film with detection is fixed to the middle part of the unwinding component 4, and then guided by the guide component 5, and finally wound to the middle part of the winding component 3, and then the lifting component 7 is controlled to drive the detection component 6 to descend, so that it is always in close contact with the PVC printed film, and then the winding component 3 is started to drive the PVC printed film to be transmitted, so that the transmitted PVC printed film is always in a stretched state, which is convenient for the detection component 6 to perform comprehensive detection on the transmitted PVC printed film, improve the detection efficiency, and reduce the labor intensity of manual labor.

[0022] Specifically, the winding component 3 includes a mounting frame 31 symmetrically provided at one end of the detection platform 1, and winding rollers 32 are rotatably provided in the middle of the mounting frames 31 on both sides. The mounting frame is provided with a motor 33 with an output end fixedly connected to the winding shaft. By starting the motor 33, the winding roller 32 is driven to rotate synchronously, and then the PVC printed film fixed in the middle of the unwinding roller 42 is driven to perform an unwinding operation, and finally the winding is detected in the middle of the winding roller 32 through the detection component 6.

[0023] Specifically, the unwinding component 4 includes a mounting frame 41 symmetrically provided at the other end of the detection platform 1, and unwinding rollers 42 are rotatably provided in the middle of the mounting frames 41 on both sides. The PVC printed film to be detected is fixed by the unwinding rollers 42, and the PVC printed film is transmitted in cooperation with the winding rollers 32.

[0024] Specifically, the guide component 5 includes a mounting plate 51 symmetrically arranged on one side of the top of the detection platform 1, and a guide shaft 52 is rotatably arranged in the middle of the mounting plates 51 on both sides. The guide shaft 52 cooperates with the detection component 6 for guidance, so that the transmitted PVC printed film is always in a straight state, which facilitates the detection component 6 to detect the flatness of the PVC printed film and improves the detection effect.

[0025] Specifically, the detection assembly 6 includes a detection frame 61 that is lifted and lowered on the top of the detection platform 1, and a plurality of guide holes 62 are symmetrically penetrated on the top of the detection frame 61. A connecting frame 63 is lifted and lowered in the middle of the guide holes 62. A roller 64 is rotatably provided at the bottom of the connecting frame 63. The middle of the connecting frame 63 is connected to the detection frame 61 through a spring 65. The guide holes 62 distributed along the width direction of the detection frame 61 form a group, and a pull rod 66 is commonly connected to the top of the connecting frame 63 in the middle of each group of guide holes 62. A guide slide plate 67 is symmetrically provided on the top of the detection frame 61, and a guide groove 671 for installing the pull rod 66 is provided in the middle of the guide slide plate 67. The detection frame 61 is provided with a mounting block 68 corresponding to the guide slide plate 67, and the mounting block 68 is provided with a tension sensor 69. One end of the tension sensor 69 is fixedly connected to the end of the pull rod 66 through a connecting rod 610, and is connected to the detection frame 61 through the lifting assembly 7. The detection frame 61 is driven to descend, so that the roller 64 and the transmitted PVC printed film are always pressed against the compression spring 65, so that the transmitted PVC printed film is always in a stretched state, and the value of the tension sensor 69 in this state is set to zero. When the thickness of the transmitted PVC printed film is inconsistent, the thicker part will squeeze the roller 64, so that the connecting frame 63 further compresses the spring 65 to rise, so that the pull rod 66 drives the connecting rod 610 to rise, and then a certain tension is generated on the tension sensor 69. The thinner part of the roller 64 will descend by its own weight, so that the spring 65 pushes the connecting frame 63 to descend, and the pull rod 66 drives the connecting rod 610 to descend. In the process of the connecting rod 610 rising and falling, the value of the electrical signal transmitted by the tension sensor 69 changes, and then by observing the data transmitted by the electrical signal of the tension sensor 69, the flatness of the PVC printed film is detected, thereby improving the detection efficiency of the flatness of the PVC printed film and reducing the labor intensity of workers.

[0026] Specifically, each group of guide holes 62 is staggered, which is convenient for the roller 64 to perform comprehensive inspection on the transmitted PVC printed film. By staggering each group of guide holes 62, the width of the line contact between the roller 64 at the bottom of the detection frame 61 and the surface of the PVC printed film is consistent with the width of the PVC printed film, thereby achieving comprehensive inspection of the PVC printed film and improving the inspection effect of the flatness of the PVC printed film.

[0027] Specifically, the detection frame 61 is U-shaped, and a mounting groove 8 is provided at the bottom of one end of the detection frame 61. A cutting knife 9 is provided in the mounting groove 8 through bolt connection. A slope surface 10 is provided at the bottom of the other end of the detection frame 61. An air guide groove 11 is provided near the middle of the slope surface 10 of the detection frame 61. The slope surface 10 is connected to the air guide groove 11 and has a plurality of exhaust holes 12. The detection frame 61 is provided with an air inlet head 13 for connecting the air guide groove 11 to an external air source. The air guide groove 11 is supplied with air by controlling the external air source, and the air is then blown to the surface of the transmitted PVC printed film through the exhaust holes 12 to clean the surface of the PVC printed film and prevent dust and other impurities from interfering with the effect of flatness detection of the PVC printed film. When there are continuous parts of the PVC printed film with inconsistent thickness, the detection data of the symmetrical tension sensors 69 on both sides are consistent, and then the detection frame 61 is driven to further descend by controlling the lifting component 7, so as to cut the transmitted PVC printed film and remove the parts of the PVC printed film with inconsistent flatness, thereby improving the practicality of the equipment.

[0028] Specifically, the lifting assembly 7 includes a lifting frame 71 symmetrically arranged in the middle of both sides of the detection platform 1, a screw rod 72 is rotatably arranged in the middle of the lifting frame 71, and a mounting block 68 for fixing the detection frame 61 is threadedly connected in the middle of the screw rod 72, a transmission wheel 74 is arranged on the top of the screw rod 72, and the transmission wheels 74 on both sides are connected by chains 75 for transmission. A second motor 76 with an output shaft fixedly connected to the screw rod 72 on one side is arranged at the bottom of the lifting frame 71, and the screw rod 72 on the side is driven to rotate synchronously by starting the second motor 76, and then the screw rod 72 on the other side is driven to rotate synchronously through the transmission wheel 74 and the chain 75, so that the mounting blocks 68 on the screw rods 72 on both sides drive the detection frame 61 connected in the middle to rise and fall synchronously, thereby improving the stability and accuracy of the detection frame 61 during the lifting and lowering process, and facilitating the roller 64 and the tension sensor 69 to detect the flatness of the transmitted PVC printed film.

[0029] Working principle of the utility model: when in use, the PVC printed film with detection is fixed to the middle part of the unwinding component 4, and then guided by the guide component 5, and finally wound to the middle part of the winding component 3, and the detection frame 61 is driven to descend by starting the motor 2 76, so that the roller 64 and the transmitted PVC printed film are always pressed tightly, and the spring 65 is compressed, so that the transmitted PVC printed film is always in a straight state, and then the motor 1 33 is started to drive the winding roller 32 to transmit the PVC printed film. When the thickness of the transmitted PVC printed film is inconsistent, the thicker part will squeeze the roller 64 to rise, and the thinner part roller 64 will descend by its own weight, thereby driving the connecting rod 610 to rise and fall. In the process of the connecting rod 610 rising and falling, the value of the electrical signal transmitted by the tension sensor 69 changes, and then by observing the data transmitted by the electrical signal of the tension sensor 69, the flatness of the PVC printed film is detected, thereby improving the detection efficiency and reducing the labor intensity of manual labor.

[0030] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modification, equivalent substitution or improvement made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A PVC printed film flatness detection device, comprising a detection platform (1), wherein support columns (2) are provided at four corners of the bottom of the detection platform (1), characterized in that: A reeling assembly (3) is provided at one end of the detection platform (1), and an unreeling assembly (4) is provided at the other end of the detection platform (1). Guide assemblies (5) are symmetrically provided on the top of the detection platform (1), and detection assemblies (6) are provided in the middle of the guide assemblies (5) on both sides for lifting. A lifting assembly (7) for driving the detection assembly (6) to lift is provided on the side of the detection platform (1).

2. A PVC printed film flatness detection device according to claim 1, characterized in that: The winding assembly (3) comprises a mounting frame (31) symmetrically arranged at one end of the detection platform (1), winding rollers (32) rotatably arranged in the middle of the mounting frame (31) on both sides, and the mounting frame is provided with a motor (33) whose output end is fixedly connected to the winding roller (32).

3. A PVC printing film flatness detection device according to claim 1, characterized in that: The unwinding assembly (4) comprises a second mounting frame (41) symmetrically arranged at the other end of the detection platform (1), and unwinding rollers (42) are rotatably arranged in the middle of the second mounting frame (41) on both sides.

4. A PVC printing film flatness detection device according to claim 1, characterized in that: The guide assembly (5) comprises a mounting plate (51) symmetrically arranged on one side of the top of the detection platform (1), and guide shafts (52) are rotatably arranged in the middle of the mounting plates (51) on both sides.

5. A PVC printing film flatness detection device according to claim 1, characterized in that: The detection assembly (6) comprises a detection frame (61) which is provided on the top of the detection platform (1) in a lifting manner. A plurality of guide holes (62) are symmetrically provided on the top of the detection frame (61). A connecting frame (63) is provided in the middle of each of the guide holes (62) in a lifting manner. A roller (64) is provided at the bottom of the connecting frame (63) in a rotatable manner. The middle of the connecting frame (63) is connected to the detection frame (61) via a spring (65). The guide holes (62) distributed along the width direction of the detection frame (61) form a group, and each group of the guide holes (62) is provided with a plurality of guide holes (62) arranged in a symmetrical manner. A pull rod (66) is commonly connected to the top of the connecting frame (63) in the middle of the hole (62), a guide slide (67) is symmetrically provided on the top of the detection frame (61), a guide groove (671) for mounting the pull rod (66) is provided in the middle of the guide slide (67), the detection frame (61) is provided with a mounting block (68) corresponding to the guide slide (67), the mounting block (68) is provided with a tension sensor (69), and one end of the tension sensor (69) is fixedly connected to the end of the pull rod (66) through a connecting rod (610).

6. A PVC printing film flatness detection device according to claim 5, characterized in that: Each group of guide holes (62) is staggeredly distributed, so as to facilitate the roller (64) to perform comprehensive inspection on the transmitted PVC printed film.

7. A PVC printing film flatness detection device according to claim 5, characterized in that: The detection frame (61) is U-shaped, a mounting groove (8) is provided at the bottom of one end of the detection frame (61), a cutting knife (9) is provided in the mounting groove (8) via bolt connection, a slope surface (10) is provided at the bottom of the other end of the detection frame (61), an air guide groove (11) is provided near the middle of the slope surface (10) of the detection frame (61), a plurality of exhaust holes (12) are provided on the slope surface (10) in communication with the air guide groove (11), and an air inlet head (13) is provided on the detection frame (61) for connecting the air guide groove (11) to an external air source.

8. A PVC printing film flatness detection device according to claim 5, characterized in that: The lifting assembly (7) comprises a lifting frame (71) symmetrically arranged at the middle of both sides of the detection platform (1); a screw rod (72) is rotatably arranged at the middle of the lifting frame (71); a mounting block (68) for fixing the detection frame (61) is threadedly connected at the middle of the screw rod (72); a transmission wheel (74) is arranged at the top of the screw rod (72); the transmission wheels (74) at both sides are connected by a chain (75); and a second motor (76) is arranged at the bottom of the lifting frame (71) and the output shaft is fixedly connected to the screw rod (72) at one side.

Images