A polypropylene pad cloth detection device

Abstract

The invention relates to the field of detection equipment, and specifically discloses a polypropylene pad cloth detection device. The invention uses a movable mobile frame installed with a first clamping mechanism and a tension sensor to perform intermittent fixed-length detection on a polypropylene pad cloth roll, thereby meeting the non-destructive detection of a whole roll of polypropylene pad cloth in the production process; in addition, a first electric knife gate and a second electric knife gate are used to cut and sort unqualified polypropylene pad cloth segments found in the detection process, and the first clamping mechanism and the second clamping mechanism are used to achieve secondary feeding of the cut polypropylene pad cloth, thereby meeting the intermittent detection of the whole roll of polypropylene pad cloth and improving the stability and uniformity of the quality of the polypropylene pad cloth leaving the factory; and an auxiliary winding mechanism installed at the outer end of the winding mechanism is used to achieve continuous winding of broken polypropylene pad cloth, thereby reducing manual intervention, improving the automation level in the polypropylene pad cloth detection process, and improving the overall detection efficiency.

Description

Technical Field

[0001] The present invention relates to the field of detection equipment, and more specifically, to a polypropylene pad cloth detection device. Background Art

[0002] Polypropylene padding is mainly used as an auxiliary material in the rubber cord calendering process in the rubber industry. Specifically, it is placed under or above the rubber cord (depending on the calendering process) to provide support, isolation and protection. Polypropylene padding has excellent properties such as light weight, high strength, good wear resistance and low moisture absorption. It can ensure that the rubber cord is evenly stressed during the calendering process, prevent adhesion and damage, thereby improving production efficiency and ensuring product quality.

[0003] The tensile strength of polypropylene pads is a key factor in ensuring the quality of rubber molding and extending its service life. However, the traditional testing devices currently widely used mostly adopt destructive sampling methods and can only test a part of the polypropylene pad roll. This method not only limits the comprehensiveness of the test, but also easily leads to the omission of potential defects. In view of this, it is particularly important to develop a new device that can achieve non-destructive and integrity testing of the entire roll of polypropylene pads. Summary of the invention

[0004] In view of the problems existing in the prior art, the object of the present invention is to provide a polypropylene pad cloth detection device, which can realize non-destructive and complete detection of polypropylene pad cloth rolls.

[0005] To solve the above problems, the present invention adopts the following technical solutions.

[0006] A polypropylene pad cloth detection device comprises a support seat; a release mechanism, a detection mechanism and a winding mechanism are sequentially installed on the support seat from left to right; the detection mechanism comprises a guide frame fixedly connected to the support seat, a feed trough is provided on the left side of the guide frame, a first traction roller mechanism for driving the polypropylene pad cloth to move and feed is provided in the feed trough, a discharge trough is provided on the right side of the guide frame, and a second traction roller mechanism for driving the polypropylene pad cloth to discharge is installed in the middle of the inner side of the discharge trough;

[0007] A movable traction mechanism is provided between the feed trough and the discharge trough, and the movable traction mechanism includes a movable frame slidably connected to the guide frame, and a horizontal screw module driving the movable frame to move laterally along the guide frame is connected to the outer side of the movable frame; the movable frame is provided with a horizontal through groove for the polypropylene pad cloth to pass through, and a third traction roller mechanism is provided on the side of the horizontal through groove facing the feed trough, and a movable frame slidably abutting against the inner wall of the horizontal through groove on the side facing the discharge trough, and a first clamping mechanism is installed in the movable frame, and a tension sensor fixedly connected to the movable frame is connected to the inner side of the movable frame, and a second clamping mechanism arranged opposite to the first clamping mechanism is installed on the side of the discharge trough facing the movable frame;

[0008] The mobile frame is provided with a first electric knife between the third traction roller mechanism and the mobile frame, and a second electric knife is provided at the right opening of the discharge chute. The first electric knife and the second electric knife are used to cut the unqualified polypropylene pad cloth in one piece after the test.

[0009] As a further solution of the present invention: it also includes a winding auxiliary mechanism arranged at the outer end of the winding mechanism, the winding auxiliary mechanism includes a rotating frame rotatably connected to the winding mechanism, the rotating frame is connected to a rotating motor nested in the winding mechanism, the rotating motor drives the rotating frame to rotate, a pair of sliding frames are nested in the rotating frame, each sliding frame is connected to a telescopic cylinder that pushes it to slide along the rotating frame, each sliding frame is nested with a pressing plate slidably connected to it, the pressing plate is meshed with a driving gear, the driving gear is connected to a driving motor installed on the sliding frame, and an infrared sensor arranged to be raised with its axis is provided on the right side of the winding mechanism, and the infrared sensor is used to detect whether the new pad cloth reaches the axis height of the winding mechanism.

[0010] As a further solution of the present invention: the guide frame is a hollow rectangular frame, and is horizontally arranged, and the two are relatively opened on both sides of the guide frame, a hollow cavity is opened between the feed trough and the discharge trough, the movable frame is nested in the hollow cavity, and the outer wall of the movable frame is fixedly connected with a movable block that passes through the inner wall of the hollow cavity, and the movable block is threadedly connected to the horizontal screw module.

[0011] As a further solution of the present invention: the movable frame is a holding frame structure and is in sliding contact with the inner wall of the horizontal through-groove, the tension sensor is a telescopic rod type tension sensor, and the tension sensor is fixedly connected to the top wall of the horizontal through-groove.

[0012] As a further solution of the present invention: the first traction roller mechanism includes a pair of traction rollers arranged vertically opposite to each other, the pair of traction rollers are meshed with each other through transmission gears, the traction roller located at the upper end is connected to a rotating motor through a transmission gear set, and the second traction roller mechanism and the third traction roller mechanism have the same structure as the first traction roller mechanism.

[0013] As a further solution of the present invention: the first clamping mechanism includes a pair of clamping plates arranged vertically opposite to each other, and a clamping cylinder is fixedly connected to the outer side of the clamping plate. The clamping cylinder is an electric or hydraulic telescopic cylinder, and the clamping cylinder is fixedly connected to the inner wall of the movable frame; the second clamping mechanism has the same structure as the first clamping mechanism, and the second clamping mechanism is fixedly connected to the inner wall of the discharge trough.

[0014] As a further solution of the present invention: the first electric knife gate includes a blade plate with a blade provided at the bottom, a lifting cylinder is fixedly connected above the blade plate to drive it to move up and down, the lifting cylinder is an electric cylinder or a hydraulic cylinder, a pad is provided under the blade plate, the second electric knife gate has the same structure as the first electric knife gate, and a waste cloth collection box is provided under the detection mechanism.

[0015] As a further solution of the present invention: the winding mechanism includes a winding shaft and a winding motor, and the release mechanism has the same structure as the winding mechanism.

[0016] As a further solution of the present invention: the rotating frame is a rectangular frame structure and is provided with a pair of rectangular slide grooves, the middle position of the rotating frame is fixedly connected to the output shaft of the rotating motor, and the rotating motor is fixedly installed on the front end surface of the winding shaft.

[0017] As a further solution of the present invention: the pressing sheet is a long strip structure with arc-shaped inner and outer surfaces, a groove arranged along its length direction is opened at the center of the upper part of the pressing sheet, and linearly equidistantly distributed latch teeth are arranged on the side wall of one side of the groove, and the latch teeth are meshed with the driving gear.

[0018] Compared with the prior art, the advantages of the present invention are:

[0019] (1) The present invention uses a movable mobile frame equipped with a first clamping mechanism and a tension sensor to perform intermittent fixed-length detection on a roll of polypropylene pad cloth, thereby meeting the non-destructive detection of the entire roll of polypropylene pad cloth during the production process; in addition, the first electric knife gate and the second electric knife gate are used to cut and sort the unqualified polypropylene pad cloth segments found during the detection process, and the first clamping mechanism and the second clamping mechanism are used to achieve secondary feeding of the cut polypropylene pad cloth, thereby meeting the intermittent detection of the entire roll of polypropylene pad cloth and improving the stability and uniformity of the quality of the polypropylene pad cloth leaving the factory.

[0020] (2) The present invention is provided with an auxiliary winding mechanism installed at the outer end of the winding mechanism, and utilizes a pair of pressure strips that can move vertically and longitudinally to realize the separate squeezing of the broken winding and the broken polypropylene pad cloth, so as to realize the continuous winding of the broken polypropylene pad cloth, so that the broken polypropylene pad cloth can be continuously wound, thereby reducing manual intervention, improving the automation level in the polypropylene pad cloth detection process, and improving the overall detection efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a schematic diagram of the three-dimensional structure of the present invention;

[0022] Figure 2 It is a schematic diagram of the transverse cross-sectional structure of the present invention;

[0023] Figure 3 for Figure 2 A schematic diagram of the enlarged structure at A in the middle;

[0024] Figure 4 It is a schematic diagram of the assembly structure of the moving frame and the guide frame in the present invention;

[0025] Figure 5 It is a schematic diagram of the explosion assembly structure of the internal structure of the mobile frame in the present invention;

[0026] Figure 6 This is a schematic diagram of the state where the mobile frame clamps the polypropylene pad for tensile testing;

[0027] Figure 7 It is a schematic diagram of the three-dimensional structure of the auxiliary winding mechanism in the present invention;

[0028] Figure 8 It is a schematic diagram of the explosion assembly structure of the auxiliary winding mechanism in the present invention;

[0029] Fig. 9 It is a schematic diagram of the three-dimensional structure of the tablet in the present invention;

[0030] Fig.10 This is a schematic diagram of the state of the tablet extrusion fracture stock winding.

[0031] Explanation of the reference numerals in the figure: 1. release mechanism; 2. detection mechanism; 3. winding mechanism; 301. winding shaft; 302. winding motor; 4. waste cloth collecting box; 5. guide frame; 501. feeding trough; 502. discharging trough; 6. first traction roller mechanism; 7. second traction roller mechanism; 8. moving frame; 9. horizontal screw rod module; 10. third traction roller mechanism; 11. moving frame; 12. first clamping mechanism; 1201. clamping plate; 1202. clamping Holding cylinder; 13. Tension sensor; 14. First electric knife; 1401. Blade plate; 1402. Lifting cylinder; 1403. Pad; 15. Second clamping mechanism; 16. Second electric knife; 17. Winding auxiliary mechanism; 18. Rotating frame; 19. Sliding frame; 20. Telescopic cylinder; 21. Pressing sheet; 2101. Groove; 2102. Gear; 22. Driving gear; 23. Rotating motor; 24. Driving motor; 25. Infrared sensor. DETAILED DESCRIPTION

[0032] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention; it is obvious that the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments, and all other embodiments obtained by ordinary technicians in this field based on the embodiments of the present invention without making creative work are within the scope of protection of the present invention.

[0033] In the description of the present invention, it should be noted that the terms "upper", "lower", "inner", "outer", "top / bottom" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific position, be constructed and operated in a specific position, and therefore cannot be understood as limiting the present invention. In addition, the terms "first" and "second" are used for descriptive purposes only and cannot be understood as indicating or implying relative importance.

[0034] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "provided with", "mounted / connected", "connected", etc. should be understood in a broad sense. For example, "connected" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0035] See also Figure 1-6 In one embodiment of the present invention, a polypropylene pad detection device includes a support seat; a release mechanism 1, a detection mechanism 2 and a winding mechanism 3 are sequentially installed on the support seat from left to right; the detection mechanism 2 includes a guide frame 5 fixedly connected to the support seat, a feed trough 501 is opened on the left side of the guide frame 5, a first traction roller mechanism 6 for driving the polypropylene pad to move and feed is arranged in the feed trough 501, a discharge trough 502 is opened on the right side of the guide frame 5, and a second traction roller mechanism 7 for driving the polypropylene pad to discharge is installed in the middle of the inner side of the discharge trough 502;

[0036] A movable traction mechanism is provided between the feed trough 501 and the discharge trough 502, and the movable traction mechanism includes a movable frame 8 slidably connected to the guide frame 5, and a horizontal screw module 9 is connected to the outer side of the movable frame 8 to drive it to move laterally along the guide frame 5; the movable frame 8 is provided with a horizontal through groove for the polypropylene pad to pass through, and a third traction roller mechanism 10 is provided on the side of the horizontal through groove facing the feed trough 501, and a movable frame 11 is provided on the side of the horizontal through groove facing the discharge trough 502 to slide against the inner wall thereof, and a first clamping mechanism 12 is installed in the movable frame 11, and a tension sensor 13 fixedly connected to the movable frame 8 is connected to the inner side of the movable frame 11, and a second clamping mechanism 15 arranged opposite to the first clamping mechanism 12 is installed on the side of the discharge trough 502 facing the movable frame 8;

[0037] The movable frame 8 is located between the third traction roller mechanism 10 and the movable frame 11 and is provided with a first electric knife 14. The right opening of the discharge trough 502 is provided with a second electric knife 16. The first electric knife 14 and the second electric knife 16 are used to cut the unqualified polypropylene pad cloth after the test into a whole piece.

[0038] A method for using a polypropylene pad detection device, please refer to Figure 3 and Figure 6 , including the following steps:

[0039] Step 1, intermittently start the release mechanism 1 and the winding mechanism 3, so that the polypropylene pad cloth intermittently passes through the detection mechanism 2;

[0040] Step 2: When the release mechanism 1 and the winding mechanism 3 stop running, first start the first clamping mechanism 12 and the second clamping mechanism 15 to clamp the two ends of the polypropylene pad to be tested between the moving frame 8 and the discharge trough 502; then, start the horizontal screw module 9, which drives the moving frame 8 to move away from the discharge trough 502, and monitors the tension of the polypropylene pad to be tested through the tension sensor 13;

[0041] Step 3: When the tension sensor 13 monitors that the tension of the polypropylene pad to be tested reaches the threshold, the horizontal screw module 9 is closed to maintain the set tension threshold until the set test time is reached. There are two situations in the process of reaching the set test time:

[0042] In the first case, during the tension test, if the real-time tension change value of the tension sensor 13 is lower than the set change threshold, the tested polypropylene pad meets the production requirements. First, close the first clamping mechanism 12 and the second clamping mechanism 15, and start the horizontal screw module 9 to return the moving frame 8 to the initial position; finally, start the winding mechanism 3 to wind up the tested polypropylene pad;

[0043] In the second case, during the tension test, if the real-time tension change value of the tension sensor 13 exceeds the set change threshold, the section of polypropylene pad cloth is unqualified and flattened; first, the first electric knife 14 and the second electric knife 16 are started to cut the test polypropylene pad cloth section as a whole; then, the first clamping mechanism 12 and the second clamping mechanism 15 are started at the same time to release the cut polypropylene pad cloth section, and the cut polypropylene pad cloth section falls downward under the action of gravity;

[0044] Then the cloth is reloaded. First, the mechanism 1 and the third traction roller mechanism 10 are started and released to move the polypropylene pad cloth to the position of the first clamping mechanism 12. Second, the first clamping mechanism 12 is started to clamp the head of the polypropylene pad cloth. Third, the horizontal screw module 9 is started to make the movable frame 8 abut against the left opening of the discharge trough 502. Fourth, the first clamping mechanism 12 is closed, and the third traction roller mechanism 10 is started to make the head of the polypropylene cloth extend to the position of the second electric knife gate 16. Fifth, the second clamping mechanism 15 is started, and then the horizontal screw module 9 is started to make the movable frame 8 return to the initial position.

[0045] Step 4: Repeat steps 1 to 3 to achieve intermittent detection of the entire roll of polypropylene padding.

[0046] Compared with the traditional sampling detection method of polypropylene pad cloth, the present invention uses the movable mobile frame 8, the first clamping mechanism 12 and the tension sensor 13 to perform intermittent fixed-length detection on the polypropylene pad cloth roll, so as to meet the non-destructive detection of the whole roll of polypropylene pad cloth in the production process; in addition, the first electric knife gate 14 and the second electric knife gate 16 are used to cut and separate the unqualified polypropylene pad cloth segments found in the detection process, and the first clamping mechanism 12 and the second clamping mechanism 15 cooperate to realize the secondary feeding of the cut polypropylene pad cloth, so as to meet the intermittent detection of the whole roll of polypropylene pad cloth and improve the stability and uniformity of the quality of the polypropylene pad cloth leaving the factory.

[0047] See also Figure 3 and Figure 4 The guide frame 5 is a hollow rectangular frame, and is horizontally arranged. The two are opened on both sides of the guide frame 5 opposite to each other. A hollow cavity is opened between the feed trough 501 and the discharge trough 502. The moving frame 8 is nested in the hollow cavity. The outer wall of the moving frame 8 is fixedly connected with a moving block that passes through the inner wall of the hollow cavity. The moving block is threadedly connected to the horizontal screw module 9.

[0048] Specifically, the stable lateral reciprocating movement of the moving frame 8 is achieved, and the tensile test and secondary loading of the polypropylene pad cloth are realized.

[0049] See also Figure 3 and Figure 5 The movable frame 11 is a frame structure and is in sliding contact with the inner wall of the horizontal through groove. The tension sensor 13 is a telescopic rod tension sensor, and the tension sensor 13 is fixedly connected to the top wall of the horizontal through groove.

[0050] Specifically, during stretching, the moving frame 11 slides in the horizontal through groove and pulls the tension sensor 13 laterally to achieve tension monitoring.

[0051] See also Figure 3 and Figure 5 The first traction roller mechanism 6 includes a pair of traction rollers arranged vertically opposite to each other, and the pair of traction rollers are meshed with each other through transmission gears. The traction roller at the upper end is connected to a rotating motor through a transmission gear set. The second traction roller mechanism 7 and the third traction roller mechanism 10 have the same structure as the first traction roller mechanism 6.

[0052] Specifically, a pair of traction rollers are rotated toward each other to drive the polypropylene pad cloth to be fed and discharged horizontally.

[0053] See also Figure 3 and Figure 5The first clamping mechanism 12 includes a pair of clamping plates 1201 arranged vertically opposite to each other, and a clamping cylinder 1202 is fixedly connected to the outer side of the clamping plate 1201. The clamping cylinder 1202 is an electric or hydraulic telescopic cylinder, and the clamping cylinder 1202 is fixedly connected to the inner wall of the movable frame 11; the second clamping mechanism 15 has the same structure as the first clamping mechanism 12, and the second clamping mechanism 15 is fixedly connected to the inner wall of the discharge trough 502.

[0054] Specifically, the first clamping mechanism 12 and the second clamping mechanism 15 cooperate to achieve the stretching, pulling and secondary feeding of the polypropylene pad cloth.

[0055] See also Figure 3 and Figure 5 The first electric knife gate 14 includes a blade plate 1401 with a blade at the bottom, and a lifting cylinder 1402 is fixedly connected above the blade plate 1401 to drive it to move up and down. The lifting cylinder 1402 is an electric cylinder or a hydraulic cylinder. A pad 1403 is provided under the blade plate 1401. The second electric knife gate 16 has the same structure as the first electric knife gate 14, and a waste cloth collection box 4 is provided under the detection mechanism 2.

[0056] Specifically, the first electric knife gate 14 and the second electric knife gate 16 are used to achieve the overall cutting of the polypropylene pad cloth section after the test, so that it can be dropped into the waste cloth collection box 4 for centralized collection.

[0057] In another embodiment of the present invention, a polypropylene pad detection device, see Figure 7-10 , also includes a winding auxiliary mechanism 17 arranged at the outer end of the winding mechanism 3, the winding auxiliary mechanism 17 includes a rotating frame 18 rotatably connected to the winding mechanism 3, the rotating frame 18 is connected to a rotating motor 23 nested in the winding mechanism 3, the rotating motor 23 drives the rotating frame 18 to rotate, a pair of sliding frames 19 are nested in the rotating frame 18, each sliding frame 19 is connected to a telescopic cylinder 20 that pushes it to slide along the rotating frame 18, each sliding frame 19 is nested with a pressing plate 21 slidably connected thereto, the pressing plate 21 is meshed with a driving gear 22, and the driving gear 22 is connected to a driving motor 24 installed on the sliding frame 19, and an infrared sensor 25 arranged to ascend with its axis is provided on the right side of the winding mechanism 3, and the infrared sensor 25 is used to detect whether the new pad cloth reaches the axis height of the winding mechanism 3.

[0058] For details, please refer to Fig.10In the second case of step three of the method for using the polypropylene pad cloth detection device, when the polypropylene pad cloth is rolled up, the driving motor 24 connected to one of the pressing sheets 21 is started, so that one of the pressing sheets 21 moves to the top of the roll, and then the telescopic cylinder 20 corresponding to the pressing sheet 21 is started, so that the pressing sheet 21 is attached to the roll, so that the roll is bound by the pressing sheet 21. When the polypropylene pad cloth at one end of the roll is cut off, the rotating frame 18 and the pressing sheet 21 are driven to rotate by the rotating motor 23 to squeeze and bind the cut-off head position of the roll;

[0059] When the polypropylene pad cloth that has been cut off and loaded for the second time is tested and qualified again, the second traction roller mechanism 7 of the discharge trough 502 transports the tested qualified pad cloth to the outside, and when the infrared sensor 25 detects the polypropylene pad cloth that has drooped to the axis of the winding mechanism 3, the drive motor 24 and the telescopic cylinder 20 corresponding to the other pressing plate 21 are started, so that the other pressing plate 21 squeezes the end of the drooping polypropylene pad cloth so that it is bound on the roll, and then the winding mechanism 3 and the rotating motor 23 are started to drive the roll and the pressing plate 21 to rotate synchronously for winding. After multiple windings, the drive motor 24 is started, so that both pressing plates 21 are pulled out of the roll, and one of the pressing plates 21 is pressed on the roll again; the automatic continuation of winding after the roll is broken is realized, manual intervention is reduced, and assembly automation is improved, so that the roll break does not affect the winding efficiency, thereby improving the overall detection efficiency.

[0060] See also Figure 8 The winding mechanism 3 includes a winding shaft 301 and a winding motor 302 , and the releasing mechanism 1 has the same structure as the winding mechanism 3 .

[0061] It should be noted that, when winding, one of the pressing plates 21 attached to the roll maintains a static position relative to the support seat under the drive of the rotating motor 23; when connecting, the attached pressing plate 21 first approaches and squeezes the broken end of the roll, and then returns to the initial position, allowing the other pressing plate 21 to squeeze the new polypropylene pad cloth, and then the two pressing plates 21 rotate synchronously with the winding shaft 301, so that the polypropylene pad cloth is stably wound on the existing roll; when the connecting polypropylene pad cloth has been wound on the existing roll for multiple turns, the two pressing plates 21 are pulled out, so that one of the pressing plates 21 is attached again and is static relative to the support seat.

[0062] See also Figure 8 The rotating frame 18 is a rectangular frame structure and is provided with a pair of rectangular slots. The middle position of the rotating frame 18 is fixedly connected to the output shaft of the rotating motor 23, and the rotating motor 23 is fixedly installed on the front side end surface of the winding shaft 301.

[0063] See also Fig. 9The pressing piece 21 is a long strip structure with arc-shaped inner and outer surfaces. A groove 2101 arranged along its length direction is opened at the center position of the upper part of the pressing piece 21. Linearly equidistantly distributed latch teeth 2102 are arranged on the side wall of one side of the groove 2101. The latch teeth 2102 are meshed with the driving gear 22.

[0064] Specifically, the pressing sheet 21 can be fitted to the roll and drawn out from the roll, thus having a better binding effect.

[0065] The above is only a preferred specific implementation of the present invention; however, the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical solution and its improved conception within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A polypropylene pad detection device, characterized in that: The invention comprises a support seat; a release mechanism (1), a detection mechanism (2) and a winding mechanism (3) are sequentially mounted on the support seat from left to right; the detection mechanism (2) comprises a guide frame (5) fixedly connected to the support seat, a feed trough (501) is provided on the left side of the guide frame (5), a first traction roller mechanism (6) for driving the polypropylene pad cloth to move and feed is provided in the feed trough (501), a discharge trough (502) is provided on the right side of the guide frame (5), a second traction roller mechanism (7) for driving the polypropylene pad cloth to discharge is installed in the middle of the inner side of the discharge trough (502); A movable traction mechanism is provided between the feed trough (501) and the discharge trough (502), the movable traction mechanism comprising a movable frame (8) slidably connected to the guide frame (5), the outer side of the movable frame (8) being connected to a horizontal screw module (9) for driving the movable frame (8) to move laterally along the guide frame (5); the movable frame (8) is provided with a horizontal through-groove for the polypropylene pad to pass through, a third traction roller mechanism (10) is provided on the side of the horizontal through-groove facing the feed trough (501), a movable frame (11) slidably abutting against the inner wall of the horizontal through-groove facing the discharge trough (502), a first clamping mechanism (12) being installed in the movable frame (11), a tension sensor (13) fixedly connected to the movable frame (8) being connected to the inner side of the movable frame (11), and a second clamping mechanism (15) arranged opposite to the first clamping mechanism (12) being installed on the side of the discharge trough (502) facing the movable frame (8); The movable frame (8) is provided with a first electric knife (14) between the third traction roller mechanism (10) and the movable frame (11), and a second electric knife (16) is provided at the right opening of the discharge chute (502). The first electric knife (14) and the second electric knife (16) are used to cut the unqualified polypropylene padding cloth in one piece after the test; The reeling mechanism (3) further comprises a reeling auxiliary mechanism (17) arranged at the outer end of the reeling mechanism (3), the reeling auxiliary mechanism (17) comprising a rotating frame (18) rotatably connected to the reeling mechanism (3), the rotating frame (18) being connected to a rotating motor (23) nested in the reeling mechanism (3), the rotating motor (23) driving the rotating frame (18) to rotate, a pair of sliding frames (19) being nested in the rotating frame (18), each sliding frame (19) being connected below to a telescopic cylinder (20) for driving it to slide along the rotating frame (18), each sliding frame (19) being nested with a pressing plate (21) slidably connected thereto, the pressing plate (21) being meshed with a driving gear (22), the driving gear (22) being connected to a driving motor (24) mounted on the sliding frame (19), an infrared sensor (25) being arranged to ascend from the axis of the reeling mechanism (3) being provided on the right side thereof, the infrared sensor (25) being used to detect whether a new pad has reached the axis height of the reeling mechanism (3); The guide frame (5) is a hollow rectangular frame and is arranged horizontally. The two guide frames (5) are arranged on opposite sides of the guide frame (5). A hollow cavity is arranged between the feed trough (501) and the discharge trough (502). The movable frame (8) is nested in the hollow cavity. The outer wall of the movable frame (8) is fixedly connected with a movable block that penetrates the inner wall of the hollow cavity. The movable block is threadedly connected to the horizontal screw module (9). The movable frame (11) is a frame structure and is in sliding contact with the inner wall of the horizontal through-groove. The tension sensor (13) is a telescopic rod tension sensor. The tension sensor (13) is fixedly connected to the top wall of the horizontal through-groove. The first traction roller mechanism (6) includes a pair of traction rollers arranged vertically opposite to each other. The pair of traction rollers are connected by a screw thread. The traction roller at the upper end is connected to a rotating motor through a transmission gear meshing transmission. The second traction roller mechanism (7) and the third traction roller mechanism (10) are both identical in structure to the first traction roller mechanism (6). The first clamping mechanism (12) comprises a pair of clamping plates (1201) arranged vertically opposite to each other. A clamping cylinder (1202) is fixedly connected to the outer side of the clamping plate (1201). The clamping cylinder (1202) is one of an electric or hydraulic telescopic cylinder. The clamping cylinder (1202) is fixedly connected to the inner wall of the movable frame (11). The second clamping mechanism (15) is identical in structure to the first clamping mechanism (12). The second clamping mechanism (15) is fixedly connected to the inner wall of the discharge trough (502).

2. A polypropylene pad detection device according to claim 1, characterized in that: The first electric knife gate (14) comprises a blade plate (1401) with a blade provided at the bottom, a lifting cylinder (1402) is fixedly connected above the blade plate (1401) to drive the blade plate (1401) to move up and down, the lifting cylinder (1402) is an electric cylinder or a hydraulic cylinder, a pad (1403) is provided below the blade plate (1401), the second electric knife gate (16) has the same structure as the first electric knife gate (14), and a waste cloth collection box (4) is provided below the detection mechanism (2).

3. A polypropylene pad detection device according to claim 1, characterized in that: The winding mechanism (3) comprises a winding shaft (301) and a winding motor (302), and the release mechanism (1) has the same structure as the winding mechanism (3).

4. A polypropylene pad detection device according to claim 3, characterized in that: The rotating frame (18) is a rectangular frame structure and is provided with a pair of rectangular sliding grooves. The middle position of the rotating frame (18) is fixedly connected to the output shaft of the rotating motor (23), and the rotating motor (23) is fixedly mounted on the front end surface of the winding shaft (301).

5. The polypropylene pad detection device according to claim 1, characterized in that: The pressing sheet (21) is a long strip structure with arc-shaped inner and outer surfaces. A groove (2101) arranged along its length direction is provided at the center of the upper portion of the pressing sheet (21). Linearly equidistantly distributed latch teeth (2102) are provided on a side wall of the groove (2101). The latch teeth (2102) mesh with the driving gear (22).

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