A continuous thickness measurement system for plastic films

Abstract

The invention provides a continuous thickness measurement system for a plastic film line, and relates to the technical field of film production and detection, comprising: a double-door box-type main machine platform, wherein two sides of input roller frames are fixedly arranged on the left side of the top of the double-door box-type main machine platform, and two groups of input rollers are rotatably arranged above the two groups of input roller frames; a ventilation connecting frame is fixedly arranged at a position below the two groups of input roller frames above the double-door box-type main machine platform; the invention is provided with a thickness measurement integrated frame, which provides a function of measuring the horizontal angle of the thickness, and the intermediate lead screw is driven to rotate by a leveling motor, and the intermediate lead screw drives the moving block to move, and the angle of the thickness measurement integrated frame is controlled in cooperation with a short connecting rod to achieve horizontal adjustment. If the thickness measurement integrated frame is tilted, the counterweight block is used to drive the swing connecting frame to rotate, and the side guide column and the sliding connecting seat are driven to move, and the horizontal monitoring is achieved through the change of the resistance, which provides an auxiliary function for the horizontal adjustment, and solves the problem that the existing thickness measurement integrated frame is inconvenient to automatically adjust the thickness measurement angle.

Description

Technical Field

[0001] The invention relates to the technical field of film production detection, and in particular to an online continuous thickness measurement system for plastic films. Background Art

[0002] In the production of plastic industry, thickness is a very important indicator. Taking the production of plastic film as an example, different types of plastic film have different requirements for thickness. If the thickness is too small, the performance (strength, tension, etc.) of the product will not meet the specified indicators, that is, it is an unqualified product; if the thickness is too large, raw materials will be wasted and production costs will be increased. Therefore, it is very important to detect and control the thickness for this production process. At present, the offline sampling and testing method has been optimized. This method is neither comprehensive nor timely, and it will also be affected by various human factors. Now an online continuous thickness gauge is used to measure the thickness of plastic film.

[0003] The thickness measurement technology currently used has the following disadvantages:

[0004] 1. The pre-assembly method is adopted. If deformation occurs after assembly, it is inconvenient to automatically adjust the thickness measurement angle, and there is a lack of stable detection function for automatically adjusting the thickness measurement angle;

[0005] 2. Lack of auxiliary installation function, which is not conducive to quickly finding the level for installation and continuous monitoring;

[0006] 3. The film may become loose during conveying, and there is a lack of anti-loosening conveying function to maintain the conveying tension. Summary of the invention

[0007] In view of this, the present invention provides a continuous thickness measurement system for a plastic film line, which has a lifting electric cylinder and provides a horizontal monitoring function. It can conveniently use multiple sets of thickness gauges to measure the thickness, and centrally install and control the position and angle of the thickness measurement.

[0008] The present invention provides a continuous thickness measurement system for a plastic film line, which specifically comprises: a double-door box-type main machine platform, wherein four groups of support feet connected by threads are arranged at the bottom corners of the main body of the double-door box-type main machine platform, the opening of the double-door box-type main machine platform faces forward, and double-door structures are rotatably arranged on both sides of the opening; two sides of input roller frames are fixedly arranged on the left side of the top of the double-door box-type main machine platform, and two groups of input rollers are rotatably arranged above the two groups of input roller frames; a ventilation connection frame is fixedly arranged at a position below the two groups of input roller frames above the double-door box-type main machine platform; two groups of output roller frames are fixedly arranged on the right side of the top of the double-door box-type main machine platform, and the two groups of output rollers are rotatably arranged above the two groups of input roller frames. Two groups of output rollers are rotatably arranged above the frames, and the output rollers have the same diameter as the input rollers and are aligned in height; a main mounting frame is fixedly arranged at the top rear end of the double-door box-type mainframe, and the lower end of the main mounting frame is a turning structure extending forward, and a lifting frame is arranged vertically on the start-up matching guide rail of the main mounting frame; a thickness measuring integrated frame, and the rear end bottom of the thickness measuring integrated frame is hingedly arranged at the front end bottom of the lifting frame; a leveling device, and two groups of limit sliding bars are fixedly arranged at the front end of the leveling device, and a limit structure is arranged at the front end of the limit sliding bar, and the limit sliding bar is slidably arranged below the main mounting frame; a detection platform is fixedly arranged in the middle of the top of the double-door box-type mainframe.

[0009] Optionally, a control piston is fixedly arranged on one side of the middle of the ventilation connecting frame; two groups of side piston rods are fixedly arranged on the top of both sides of the ventilation connecting frame, and weighing sensors are fixedly arranged on the top of the side piston rods; an air path is arranged to connect the control piston and the two groups of side piston rods; sliding swivel seats are arranged on both sides of the ventilation connecting frame to slide vertically in cooperation with the guide rails, and grooves are provided on the outer lower part of the sliding swivel seats, and the upper inner surface of the grooves is fixedly connected to the top of the weighing sensor; a lower input roller is rotatably arranged between the sliding swivel seats on both sides, and the lower input roller can fit the two groups of input roller parts when it is raised; a first electric cylinder is fixedly arranged on the telescopic end of the control piston, and the first electric cylinder is fixed on the top of the double-door box-type main machine; the control piston contracts when the first electric cylinder extends.

[0010] Optionally, a hexagonal rotating shaft is rotatably arranged on the upper part of both sides of the output roller frame and between the top of the double-door box-type main machine platform; a landing seat is vertically slidably arranged on the outside of the output roller frames on both sides in cooperation with the guide rails, and a protruding structure extending outward is integrally arranged on the top of the landing seat, and a transmission sleeve is rotatably arranged in the protruding structures on both sides, and the transmission sleeve is slidably connected to the hexagonal rotating shaft; a connecting plate is fixedly arranged on the outside of the landing seat, and a control connecting rod is rotatably arranged in the middle of the outside of the connecting plate; a linkage shaft is rotatably arranged on the upper part of the outside of the output roller frame, and the linkage shaft is connected to the two groups of output rollers by bevel gear transmission; the linkage shaft is connected to the transmission sleeve by bevel gear transmission; a lower output roller is rotatably arranged between the two groups of landing seats, and both ends of the lower output roller are connected to the outside of the transmission sleeve by bevel gear transmission.

[0011] Optionally, a propulsion frame is fixedly provided at the telescopic end of the second electric cylinder, and two sets of guide rods are fixedly provided at the front ends of both sides of the propulsion frame; both sides of the propulsion frame are rotatably connected to the lower end of the control connecting rod.

[0012] Optionally, a limit guide seat is fixedly arranged at a position outside the output roller frame on the top of the double-door box-type main unit, and the guide rod is slidably connected to the limit guide seat; when the connecting plate descends, it can contact the limit guide seat, thereby, the limit guide seat simultaneously provides the function of guiding and limiting the movement range of the connecting plate.

[0013] Optionally, the upper front side of the main mounting frame is a recessed structure, in which a lifting screw is rotatably arranged; a control motor for driving the lifting screw is fixedly arranged on the top of the main mounting frame, and a coupling is arranged to drive the top of the lifting screw and the shaft end of the control motor; the lifting frame is threadedly connected to the lifting screw; the upper front side of the lifting frame extends forward, and an intermediate screw is rotatably arranged in the middle of the extension, and a leveling motor for driving the intermediate screw is sealed and fixedly arranged at the front end of the extension, and a coupling is arranged to drive the front end of the intermediate screw and the shaft end of the leveling motor; a moving block is also slidably arranged in the extension structure above the front end of the lifting frame, and the moving block is threadedly connected to the intermediate screw; a short connecting rod is rotatably arranged at the bottom of the moving block, and a through groove is opened in the middle of the top of the thickness measuring integrated frame, and the lower end of the short connecting rod is rotatably arranged in the top through groove of the thickness measuring integrated frame.

[0014] Optionally, five rows of telescopic guide rods are fixedly arranged at the bottom of the thickness measuring integrated frame, the number of telescopic guide rods in each row is set to two groups, the telescopic end of each row of telescopic guide rods is fixedly arranged with a mounting plate, and a thickness gauge is fixedly installed in the middle of the mounting plate; a horizontal detector is also fixedly arranged at the front end of the top through slot of the thickness measuring integrated frame.

[0015] Optionally, two groups of straight-rod resistors are fixedly installed inside the horizontal detector, sliding connection seats are slidably installed outside the two groups of straight-rod resistors, and side guide columns are fixedly installed at both ends of the straight-rod resistors; a swing connection frame is rotatably installed on the upper part of the horizontal detector, and a counterweight block is fixedly installed on the bottom of the swing connection frame; the side guide columns are slidably installed inside the two sides of the swing connection frame.

[0016] Optionally, a spherical shell is provided on the top of the leveling device in conjunction with a tubular connecting structure, the spherical shell is made of transparent PVC, and a scale is provided on the upper part of the outside of the spherical shell; two groups of positioning rings are fixedly provided at the upper and lower parts of the inside of the spherical shell, four groups of arc resistors are fixedly provided between the two groups of positioning rings, and the arc resistors are parallel to the spherical shell; a cross is provided inside the spherical shell, and rotating sleeves are rotatably provided at the corners of the cross, and the rotating sleeves are slidably provided outside the arc resistors; a pointer with a conical tip is fixedly provided in the middle of the top of the cross, and a spherical counterweight is fixedly provided in the middle of the bottom of the cross; a data plug-in structure is provided at the front end of the leveling device and the bottom rear end of the main mounting frame.

[0017] Optionally, leveling rollers are rotatably provided on both sides of the detection platform, and the top of the leveling roller is 1-2 mm higher than the top of the detection platform.

[0018] The beneficial effects are as follows:

[0019] 1. The present invention is provided with a thickness measuring integrated frame, which provides the function of measuring the horizontal angle of the thickness. The intermediate lead screw is driven to rotate by the leveling motor, and the moving block is driven to move by the intermediate lead screw. The angle of the thickness measuring integrated frame can be controlled in cooperation with the short connecting rod, thereby realizing horizontal adjustment. If the thickness measuring integrated frame is tilted, the counterweight block is used to drive the swing connecting frame to rotate, drive the side guide column and the sliding connecting seat to move, and realize the monitoring of the level through the change of the resistance, which provides an auxiliary function for the horizontal adjustment.

[0020] 2. A leveling device is provided to provide horizontal installation and monitoring functions. When the double-door box-type main unit is tilted, the spherical counterweight will drive the cross and the rotating sleeve to slide outside the arc resistor to adjust the position. By observing the pointer, the position of the double-door box-type main unit can be adjusted horizontally. In addition to providing guidance, the arc resistor can also provide a monitoring function. By rotating the sleeve to connect non-adjacent arc resistors, three-dimensional space monitoring is formed, which can determine the horizontality and then monitor the horizontal position of the double-door box-type main unit.

[0021] 3. A weighing sensor is set to provide the function of tightening the film. The first electric cylinder squeezes the control piston to input the air or hydraulic oil in the control piston into the side piston rod. The side piston rod extends to lift the sliding swivel and the lower input roller. The film is clamped by the lower input roller and the input roller. The clamping force on the film can be accurately adjusted according to the feedback of the weighing sensor. Increasing the clamping force as needed can prevent the film from loosening during transportation. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 A three-dimensional structural schematic diagram of a working state according to an embodiment of the present invention is shown;

[0023] Figure 2 The embodiment according to the present invention is shown Figure 1 Schematic diagram of the back structure;

[0024] Figure 3 A schematic diagram of a three-dimensional structure in an idle state according to an embodiment of the present invention is shown;

[0025] Figure 4 A schematic diagram of the assembly structure of an input roller frame according to an embodiment of the present invention is shown;

[0026] Figure 5 A schematic diagram of the assembly structure of the output roller frame according to an embodiment of the present invention is shown;

[0027] Figure 6 A schematic diagram of the assembly structure of a main mounting frame according to an embodiment of the present invention is shown;

[0028] Figure 7 A schematic diagram of the assembly structure of a level detector according to an embodiment of the present invention is shown;

[0029] Figure 8 A schematic diagram of the assembly structure of a leveling device according to an embodiment of the present invention is shown;

[0030] Fig. 9 A schematic diagram of system integration and control association structure according to an embodiment of the present invention is shown.

[0031] Reference numerals list

[0032] 1. Double-door box-type main machine; 101. Limit guide seat; 2. Input roller frame; 201. Input roller member; 3. Ventilation connecting frame; 301. Control piston; 302. Side piston rod; 303. Weighing sensor; 304. Sliding swivel seat; 305. Lower input roller; 306. First electric cylinder; 4. Output roller frame; 401. Output roller member; 402. Hexagonal rotating shaft; 403. Lifting seat; 404. Transmission swivel sleeve; 405. Connecting plate; 406. Control connecting rod; 407. Linkage shaft; 408. Lower output roller; 5. Second electric cylinder; 501. Propulsion frame; 502. Guide rod; 6. Main mounting frame; 601. Lifting screw; 602. Control motor ;603, lifting frame; 604, intermediate screw; 605, leveling motor; 606, moving block; 607, short connecting rod; 7, thickness measuring integrated frame; 701, telescopic guide rod; 702, mounting plate; 703, thickness gauge; 8, level detector; 801, straight rod resistor; 802, sliding connection seat; 803, side guide column; 804, swing connection frame; 805, counterweight; 9, leveling device; 901, limit slide; 902, spherical shell; 903, positioning ring; 904, arc resistor; 905, cross; 906, rotating sleeve; 907, pointer; 908, spherical counterweight; 10, inspection table; 1001, lifting roller. DETAILED DESCRIPTION

[0033] In order to make the purpose, scheme and advantages of the technical solution of the present invention clearer, the technical solution of the embodiment of the present invention will be clearly and completely described below in conjunction with the drawings of specific embodiments of the present invention.

[0034] Embodiment 1:

[0035] Please refer to Figures 1 to 9 As shown:

[0036] The present invention proposes a continuous thickness measurement system for plastic film online, comprising: a double-door box-type main platform 1, four groups of support feet connected by threads are arranged at the bottom corners of the main body of the double-door box-type main platform 1, the opening of the double-door box-type main platform 1 faces forward, and double-door structures are rotatably arranged on both sides of the opening; two sides of input roller frames 2 are fixedly arranged on the left side of the top of the double-door box-type main platform 1, and two groups of input roller members 201 are rotatably arranged above the two groups of input roller frames 2; a ventilation connection frame 3 is fixedly arranged at a position below the two groups of input roller frames 2 above the double-door box-type main platform 1; two groups of output roller frames 4 are fixedly arranged on the right side of the top of the double-door box-type main platform 1, and two groups of output roller frames 4 are rotatably arranged above the two groups of output roller frames 4. An output roller member 401 is provided, and the output roller member 401 has the same diameter as the input roller member 201 and is aligned in height; a main mounting frame 6 is fixedly provided at the top rear end of the double-door box-type main platform 1, and the lower end of the main mounting frame 6 is a turning structure extending forward, and a lifting frame 603 is provided for vertical sliding of the starting matching guide rail of the main mounting frame 6; a thickness measuring integrated frame 7, and the rear end bottom of the thickness measuring integrated frame 7 is hingedly provided at the front end bottom of the lifting frame 603; a leveling device 9, and two groups of limit sliding bars 901 are fixedly provided at the front end of the leveling device 9, and a limit structure is provided at the front end of the limit sliding bar 901, and the limit sliding bar 901 is slidably provided below the main mounting frame 6; a detection platform 10 is fixedly provided in the middle of the top of the double-door box-type main platform 1.

[0037] Among them, a control piston 301 is fixedly arranged on the middle side of the ventilation connecting frame 3; two groups of side piston rods 302 are fixedly arranged on the top of both sides of the ventilation connecting frame 3, and weighing sensors 303 are fixedly arranged on the top of the side piston rods 302; the control piston 301 is connected with the two groups of side piston rods 302 by an air path; sliding seats 304 are arranged on both sides of the ventilation connecting frame 3 to slide vertically in cooperation with the guide rails, and grooves are opened on the outer lower part of the sliding seats 304, and the upper inner surface of the groove is fixedly connected to the top of the weighing sensor 303; a lower input roller 305 is rotatably arranged between the sliding seats 304 on both sides, and the lower input roller 305 can fit the two groups of input roller members 201 when it is raised; a first electric cylinder 306 is fixedly arranged at the telescopic end of the control piston 301, and the first electric cylinder 306 is fixed on the top of the double-door box-type main unit 1; when the first electric cylinder 306 is extended, the control piston 301 contracts.

[0038] Among them, a hexagonal rotating shaft 402 is rotatably arranged between the upper part of both sides of the output roller frame 4 and the top of the double-door box-type main machine platform 1; a landing seat 403 is vertically slidably arranged on the outside of the output roller frames 4 on both sides in cooperation with the guide rail, and a protruding structure extending outward is integrally arranged on the top of the landing seat 403, and a transmission sleeve 404 is rotatably arranged in the protruding structures on both sides, and the transmission sleeve 404 is slidably connected with the hexagonal rotating shaft 402; a connecting plate 405 is fixedly arranged on the outside of the landing seat 403, and a control connecting rod 406 is rotatably arranged in the middle of the outside of the connecting plate 405; a linkage shaft 407 is rotatably arranged on the upper part of the outside of the output roller frame 4, and the linkage shaft 407 is connected to the two groups of output roller members 401 by bevel gear transmission; the linkage shaft 407 is connected to the transmission sleeve 404 by bevel gear transmission; a lower output roller 408 is rotatably arranged between the two groups of landing seats 403, and both ends of the lower output roller 408 are connected to the outside of the transmission sleeve 404 by bevel gear transmission.

[0039] Among them, a propulsion frame 501 is fixedly provided at the telescopic end of the second electric cylinder 5, and two sets of guide rods 502 are fixedly provided at the front ends of both sides of the propulsion frame 501; both sides of the propulsion frame 501 are rotatably connected to the lower end of the control connecting rod 406.

[0040] Among them, a limit guide seat 101 is fixedly set at the top of the double-door box-type main unit 1 outside the output roller frame 4, and the guide rod 502 is slidably connected to the limit guide seat 101; when the connecting plate 405 descends, it can contact the limit guide seat 101, thereby, the limit guide seat 101 simultaneously provides the function of guiding and limiting the moving range of the connecting plate 405.

[0041] Among them, the upper front side of the main mounting frame 6 is a recessed structure, in which a lifting screw 601 is rotatably arranged; a control motor 602 for driving the lifting screw 601 is fixedly arranged on the top of the main mounting frame 6, and a coupling is arranged at the top of the lifting screw 601 and the shaft end of the control motor 602 for transmission connection; the lifting frame 603 is threadedly connected with the lifting screw 601; the upper front side of the lifting frame 603 extends forward, and an intermediate screw 604 is rotatably arranged in the middle of the extension, and the front end of the extension is sealed and fixedly arranged There is a leveling motor 605 for driving the intermediate lead screw 604, and the front end of the intermediate lead screw 604 is connected to the shaft end of the leveling motor 605 by a coupling. A moving block 606 is also slidably arranged in the extension structure above the front end of the lifting frame 603, and the moving block 606 is threadedly connected to the intermediate lead screw 604. A short connecting rod 607 is rotatably arranged at the bottom of the moving block 606, and a through groove is opened in the middle of the top of the thickness measuring integrated frame 7, and the lower end of the short connecting rod 607 is rotatably arranged in the top through groove of the thickness measuring integrated frame 7.

[0042] Among them, five rows of telescopic guide rods 701 are fixedly arranged at the bottom of the thickness measuring integrated frame 7, and the number of telescopic guide rods 701 in each row is set to two groups. The telescopic end of each row of telescopic guide rods 701 is fixedly arranged with a mounting plate 702, and a thickness gauge 703 is fixedly installed in the middle of the mounting plate 702; a horizontal detector 8 is also fixedly arranged at the front end of the inner part of the top through groove of the thickness measuring integrated frame 7.

[0043] Among them, two groups of straight rod resistors 801 are fixedly installed inside the horizontal detector 8, and sliding connecting seats 802 are slidably installed outside the two groups of straight rod resistors 801. Side guide columns 803 are fixedly installed at both ends of the straight rod resistors 801; a swing connecting frame 804 is rotatably installed on the upper part of the horizontal detector 8, and a counterweight block 805 is fixedly installed on the bottom of the swing connecting frame 804; the side guide columns 803 are slidably installed inside the two sides of the swing connecting frame 804.

[0044] Among them, the top of the leveling device 9 is connected with a spherical shell 902 in cooperation with a tubular connecting structure. The spherical shell 902 is made of transparent PVC, and a scale is set on the outside of the spherical shell 902; two groups of positioning rings 903 are fixedly set at the upper and lower parts of the inside of the spherical shell 902, and four groups of arc resistors 904 are fixedly set between the two groups of positioning rings 903, and the arc resistors 904 are parallel to the spherical shell 902; a cross 905 is set inside the spherical shell 902, and rotating sleeves 906 are rotatably set at the corners of the cross 905, and the rotating sleeves 906 are slidably set outside the arc resistors 904; a pointer 907 with a conical tip is fixedly set in the middle of the top of the cross 905, and a spherical counterweight 908 is fixedly set in the middle of the bottom of the cross 905; a data plug-in structure is set at the front end of the leveling device 9 and the bottom rear end of the main mounting frame 6.

[0045] Among them, leveling rollers 1001 are rotatably arranged on both sides of the detection platform 10 , and the top of the leveling roller 1001 is 1-2 mm higher than the top of the detection platform 10 .

[0046] like Figure 1-7 As shown, when installing the double-door box-type host platform 1, it is necessary to ensure that the double-door box-type host platform 1 is parallel, but it cannot be powered on in advance, so it is necessary to use a level detection device and a leveling device 9 to perform horizontal adjustment;

[0047] Pull out the leveling device 9, and then observe the position of the pointer 907. If the double-door box-type main console 1 tilts, causing the leveling device 9 to tilt, the spherical counterweight 908 will drive the cross 905 and the rotating sleeve 906 to slide and adjust the position outside the arc resistor 904. By observing the pointer 907, the position of the double-door box-type main console 1 can be adjusted horizontally.

[0048] Embodiment 2:

[0049] On the basis of Example 1, Figure 7 As shown, the arc resistor 904 can provide a monitoring function in addition to providing guidance. By rotating the sleeve 906 to connect non-adjacent arc resistors 904, three-dimensional space monitoring can be formed, and the horizontality can be determined, and then the horizontal position of the double-door box-type main unit 1 can be monitored. If various problems occur during the long-term thickness measurement, causing the level of the double-door box-type main unit 1 to change, an early warning will be issued through the arc resistor 904 feedback program.

[0050] Embodiment 3:

[0051] Based on the first embodiment, the thickness gauge 703 can be a pressing type driven by an electric cylinder or an optical type to perform continuous thickness measurement.

[0052] Specific usage and function of this embodiment: In the present invention, the initial state is Figure 3 In the above method, the film is passed through the input roller 201, the lower input roller 305, the thickness measuring integrated frame 7, the leveling roller 1001, the output roller 401 and the lower output roller 408, and then the first electric cylinder 306 is started. The first electric cylinder 306 squeezes the control piston 301 to input the air or hydraulic oil in the control piston 301 into the side piston rod 302. The side piston rod 302 extends to lift the sliding swivel 304 and the lower input roller 305. The film is clamped by the lower input roller 305 and the input roller 201. The clamping force on the film can be accurately adjusted according to the feedback of the weighing sensor 303. Increasing the clamping force as needed can prevent the film from loosening during transportation.

[0053] Start the second electric cylinder 5 to move the propulsion frame 501, cooperate with the control link 406 to lift the connecting plate 405, and then lift the lower output roller 408, clamp and fix the film through the lower output roller 408 and the output roller member 401, and then use the winder to roll up the end of the film, and the film will pass through the lower output roller 408 and the output roller member 401 for output. At the same time, the lower output roller 408 and the output roller member 401 and the linkage shaft 407 are connected by bevel gear transmission, which can ensure synchronous rotation, thereby ensuring the stability of the film during transportation;

[0054] The control motor 602 drives the lifting screw 601 to rotate, and the lifting screw 601 drives the lifting frame 603 to descend, thereby lowering the thickness measuring integrated frame 7, and moving the thickness gauge 703 to a properly controlled height, thereby performing the thickness measurement work;

[0055] Due to the detection method of using multiple sets of thickness gauges 703, the fixed thickness measuring integrated frame 7 may gradually deform. At this time, in order to ensure that the thickness measuring integrated frame 7 is parallel to the double-door box-type mainframe 1, the intermediate lead screw 604 is driven to rotate by the leveling motor 605, and the intermediate lead screw 604 is used to drive the moving block 606 to move. The short connecting rod 607 can be used to control the angle of the thickness measuring integrated frame 7, thereby realizing horizontal adjustment;

[0056] If the thickness measuring integrated frame 7 is tilted, the counterweight block 805 drives the swing connecting frame 804 to rotate, and then drives the side guide column 803 and the sliding connecting seat 802 to move. The sliding connecting seat 802 is used to connect the two groups of straight rod resistors 801 at different positions, and the horizontality is monitored by the change of resistance.

Claims

1. A continuous thickness measurement system for plastic film online, characterized in that: include: A double-door box-type mainframe (1), wherein four groups of support feet connected by threads are arranged at the bottom corners of the main body of the double-door box-type mainframe (1), the opening of the double-door box-type mainframe (1) faces forward, and double-door structures are rotatably arranged on both sides of the opening; two sides of input roller frames (2) are fixedly arranged on the left side of the top of the double-door box-type mainframe (1), and two groups of input roller members (201) are rotatably arranged above the two groups of input roller frames (2); a ventilation connection frame (3) is fixedly arranged at a position below the two groups of input roller frames (2) above the double-door box-type mainframe (1); two groups of output roller frames (4) are fixedly arranged on the right side of the top of the double-door box-type mainframe (1), and two groups of output roller members (401) are rotatably arranged above the two groups of output roller frames (4), The output roller member (401) and the input roller member (201) have the same diameter and are aligned in height; a main mounting frame (6) is fixedly provided at the top rear end of the double-door box-type main machine platform (1); the lower end of the main mounting frame (6) is a turning structure extending forward; a lifting frame (603) is provided for vertical sliding of the start-up matching guide rail of the main mounting frame (6); a thickness measuring integrated frame (7); the rear end bottom of the thickness measuring integrated frame (7) is hingedly provided at the front end bottom of the lifting frame (603); a leveling device (9); two sets of limit sliding rods (901) are fixedly provided at the front end of the limit sliding rod (901); a limit structure is provided at the front end of the limit sliding rod (901); the limit sliding rod (901) is slidably provided below the main mounting frame (6); the top of the double-door box-type main machine platform (1) A detection table (10) is fixedly arranged in the middle; the upper front side of the mounting frame (6) is a recessed structure, and a lifting screw (601) is rotatably arranged in the recessed structure; a control motor (602) for driving the lifting screw (601) is fixedly arranged on the top of the main mounting frame (6), and a coupling is arranged at the top of the lifting screw (601) and the shaft end of the control motor (602) for transmission connection; the lifting frame (603) is threadedly connected to the lifting screw (601); the upper front side of the lifting frame (603) extends forward, and an intermediate screw (604) is rotatably arranged in the middle of the extension, and a leveling motor (605) for driving the intermediate screw (604) is sealed and fixedly arranged at the front end of the extension, and the front end of the intermediate screw (604) is connected to the leveling motor (605). A coupling is arranged at the shaft end for transmission connection; a moving block (606) is also slidably arranged in the extension structure above the front end of the lifting frame (603), and the moving block (606) is threadedly connected to the intermediate lead screw (604); a short connecting rod (607) is rotatably arranged at the bottom of the moving block (606); a through slot is provided in the middle of the top of the thickness measuring integrated frame (7), and the lower end of the short connecting rod (607) is rotatably arranged in the through slot at the top of the thickness measuring integrated frame (7); five rows of telescopic guide rods (701) are fixedly arranged at the bottom of the thickness measuring integrated frame (7), and the number of telescopic guide rods (701) in each row is set to two groups, and a mounting plate (702) is fixedly arranged at the telescopic end of each row of telescopic guide rods (701), and a thickness gauge (703) is fixedly installed in the middle of the mounting plate (702);A horizontal detector (8) is also fixedly arranged at the front end of the top through slot of the thickness measuring integrated frame (7); two groups of straight rod resistors (801) are fixedly arranged inside the horizontal detector (8); sliding connection seats (802) are slidably arranged outside the two groups of straight rod resistors (801); side guide columns (803) are fixedly arranged at both ends of the straight rod resistors (801); a swing connection frame (804) is rotatably arranged above the inside of the horizontal detector (8); a counterweight (805) is fixedly arranged at the bottom of the swing connection frame (804); and the side guide columns (803) are slidably arranged inside the two sides of the swing connection frame (804).

2. A plastic film online continuous thickness measurement system as claimed in claim 1, characterized in that: A control piston (301) is fixedly arranged on one side of the middle of the ventilation connecting frame (3); two groups of side piston rods (302) are fixedly arranged on the tops of both sides of the ventilation connecting frame (3), and weighing sensors (303) are fixedly arranged on the tops of the side piston rods (302); the control piston (301) and the two groups of side piston rods (302) are connected by air paths; sliding seats (304) are arranged on both sides of the ventilation connecting frame (3) to slide vertically in cooperation with the guide rails, and the outer lower part of the sliding seats (304) is opened. A groove is provided, and the upper inner surface of the groove is fixedly connected to the top of the weighing sensor (303); a lower input roller (305) is rotatably arranged between the sliding swivel seats (304) on both sides, and the lower input roller (305) can fit the two groups of input roller members (201) when it is raised; a first electric cylinder (306) is fixedly arranged at the telescopic end of the control piston (301), and the first electric cylinder (306) is fixed on the top of the double-door box-type main machine platform (1); when the first electric cylinder (306) is extended, the control piston (301) is contracted.

3. A plastic film online continuous thickness measurement system as claimed in claim 2, characterized in that: A hexagonal rotating shaft (402) is rotatably arranged between the upper sides of the output roller frame (4) and the top of the double-door box-type main machine platform (1); a landing seat (403) is arranged outside the output roller frames (4) on both sides to cooperate with the guide rails to slide vertically, and a protruding structure extending outward is integrally arranged above the landing seat (403); a transmission rotating sleeve (404) is rotatably arranged in the protruding structures on both sides, and the transmission rotating sleeve (404) is slidably connected to the hexagonal rotating shaft (402); a connecting plate (405) is fixedly arranged outside the landing seat (403) A control link (406) is rotatably provided at the middle of the outside of the connecting plate (405); a linkage shaft (407) is rotatably provided at the upper outside of the output roller frame (4), and the linkage shaft (407) is connected to the two groups of output rollers (401) by bevel gear transmission; the linkage shaft (407) is connected to the transmission sleeve (404) by bevel gear transmission; a lower output roller (408) is rotatably provided between the two groups of landing seats (403), and both ends of the lower output roller (408) are connected to the outside of the transmission sleeve (404) by bevel gear transmission.

4. A plastic film online continuous thickness measurement system as claimed in claim 3, characterized in that: A propulsion frame (501) is fixedly provided at the telescopic end of the second electric cylinder (5), and two groups of guide rods (502) are fixedly provided at the front ends of both sides of the propulsion frame (501); both sides of the propulsion frame (501) are rotatably connected to the lower end of the control connecting rod (406).

5. A plastic film online continuous thickness measurement system as claimed in claim 4, characterized in that: A limit guide seat (101) is fixedly arranged at a position outside the output roller frame (4) on the top of the double-door box-type main machine platform (1), and the guide rod (502) is slidably connected to the limit guide seat (101); and the connecting plate (405) is able to contact the limit guide seat (101) when descending.

6. A plastic film online continuous thickness measurement system as claimed in claim 1, characterized in that: The top of the leveling device (9) is connected to a spherical shell (902) in cooperation with a tubular connection structure. The spherical shell (902) is made of transparent PVC, and a scale is arranged on the top of the outside of the spherical shell (902). Two groups of positioning rings (903) are fixedly arranged at the top and bottom of the inside of the spherical shell (902). Four groups of arc-shaped resistors (904) are fixedly arranged between the two groups of positioning rings (903). The arc-shaped resistors (904) are parallel to the spherical shell (902). The spherical shell (90 2) a cross (905) is arranged inside, and rotating sleeves (906) are rotatably arranged at the corners of the cross (905), and the rotating sleeves (906) are slidably arranged outside the arc-shaped resistor (904); a pointer (907) with a conical tip is fixedly arranged in the middle of the top of the cross (905), and a spherical counterweight (908) is fixedly arranged in the middle of the bottom of the cross (905); a data plug-in structure is arranged at the front end of the leveling device (9) and the rear end of the bottom of the main mounting frame (6).

7. A plastic film online continuous thickness measurement system as claimed in claim 3, characterized in that: Leveling rollers (1001) are rotatably arranged on both sides of the detection platform (10), and the top of the leveling roller (1001) is 1-2 mm higher than the top of the detection platform (10); the top of the leveling roller (1001) is more than 1 cm higher than the top of the lower input roller (305) and the top of the lower output roller (408).

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