A carpet backing surface defect detection device

Abstract

The present invention relates to the technical field of cloth inspection devices, and specifically to a surface defect detection device for a carpet base fabric, comprising a base frame, which is the base of the entire device, and a box shell is fixedly installed on the top of both ends of the base frame, and a lighting detection mechanism: located above the base frame and fixedly connected to the two box shells, the lighting detection mechanism is used to illuminate and photograph the surface of the passed cloth, and the retracting mechanism is located between one end of the two box shells, and is used to unwind and rewind the rolled cloth. In the present invention, through the setting of the offset mechanism, the cloth roll is placed on the retracting mechanism, and one end of the cloth passes through the upper light box and the lower light box, bypasses the offset mechanism, and passes through the upper light box and the lower light box for the second time. After the offset mechanism offsets the cloth, the cloth is arranged in parallel at the to-be-tested part above the lower light box, and does not overlap, so that both sides of the cloth are facing upward at the same time, which is convenient for the staff to simultaneously detect the defects on both sides of the cloth.

Description

Technical Field

[0001] The invention relates to the technical field of cloth inspection devices, in particular to a surface defect detection device for a carpet base fabric. Background Art

[0002] Various problems may occur during the production or use of fabrics. These problems may cause defects in the fabrics, such as warp defects, weft defects, intensive defects, damage defects, pilling, thread pulling, wrinkles, hole defects, broken warps, yarn sinking, flower skipping, and edge cutting, etc., which will affect the appearance and performance of the fabrics. Therefore, fabric defects need to be detected and marked during production to facilitate subsequent repairs.

[0003] Carpet base fabrics are generally thicker, so defects on one side of the base fabric will not completely penetrate to the other side. Therefore, when detecting surface defects of the base fabric, both sides of the base fabric need to be inspected separately. Although existing fabric inspection machines can use cameras to photograph and identify the surface of the fabric for inspection, there will be more or less missed and false alarms during the inspection. Therefore, manual observation and inspection are generally carried out simultaneously during the inspection. As a result, when existing fabric inspection machines inspect both sides of thicker fabrics, they need to inspect twice, which is inconvenient. Summary of the invention

[0004] The object of the present invention is to provide a carpet backing surface defect detection device to solve the problems raised in the above background technology.

[0005] To achieve the above object, the present invention provides the following technical solutions:

[0006] A carpet backing surface defect detection device, comprising:

[0007] Base frame: It is the base of the whole equipment, and the top of both ends of the base frame are fixedly installed with a box shell;

[0008] Lighting and detection mechanism: located above the bottom frame and fixedly connected to the two box shells, the lighting and detection mechanism is used to illuminate and photograph the surface of the passing cloth for inspection;

[0009] Rewinding and unwinding mechanism: located between one end of the two box shells, used for unwinding and rewinding the rolled fabric;

[0010] Edge trimming mechanism: located above the retracting mechanism, the edge trimming mechanism is installed between the two box shells, and the edge trimming mechanism is used to limit the cloth roller;

[0011] An offset mechanism: fixed between the other ends of the two housings, the offset mechanism is used to guide the fabric so that the fabric portion entering the offset mechanism is laterally offset from the fabric portion exiting the offset mechanism;

[0012] Driving motor: fixedly mounted on the outside of a box shell, the driving motor is used to drive the retracting and extending mechanism.

[0013] Further, the lighting detection mechanism comprises:

[0014] Stands: There are two stands, which are fixed on the top of the two box shells respectively;

[0015] Upper light box: fixed between the top ends of the two vertical frames, the vertical frames are used to illuminate the fabric below, and a recognition camera is installed in the upper light box, the recognition camera is used to recognize and detect defects on the surface of the fabric;

[0016] Lower light box: fixed between the two vertical frames and located below the upper light box, the lower light box is used to illuminate the bottom surface of the cloth, and both sides of the lower light box are rotatably connected with straight rollers;

[0017] Guide roller 1: rotatably connected to one side of the lower light box, the guide roller 1 is located below a straight roller;

[0018] Roller length gauge: installed between two vertical frames, the roller length gauge is used to measure the length of the fabric.

[0019] Further, the offset mechanism comprises:

[0020] Long frame: fixed between the other ends of the two box shells;

[0021] Fixed roller group: fixed on the top surface of the long frame, the fixed roller group includes two side seats, the side seats are fixedly connected to the top surface of the long frame, and guide roller 1, guide roller 2, and guide roller 3 are rotatably connected between the two side seats;

[0022] Hanger: Located above the fixed roller group, one side of the bottom end of the hanger is rotatably connected to an inclined roller 1, and the other side of the bottom end of the hanger is rotatably connected to an inclined roller 2. The hanger can be adjusted up and down.

[0023] Furthermore, the guide roller 1 is located directly below the skew roller 1, and the guide roller 3 is located below the position between the two skew rollers 1 and 2.

[0024] Furthermore, a bracket is fixedly connected between the top surfaces of the other ends of the two box shells, both ends of the long frame are rotatably connected to vertical poles, the top of the vertical pole is rotatably connected to the bracket, the hanger is located between the two vertical poles, the outer side wall of the hanger is provided with a threaded groove, and the hanger is screwed together with the two vertical poles.

[0025] Furthermore, the retracting and unwinding mechanism comprises a support roller 1 and a support roller 2, both of which are rotatably connected between two box shells, and one end of the support roller 1 and the support roller 2 are synchronously transmitted, two adjustment modules are arranged on one side of the support roller 1, and a flattening roller is arranged on the adjustment module, threads are provided at both ends of the outer wall of the flattening roller, and the two threads on the flattening roller rotate in opposite directions, and a guide roller 2 is rotatably connected at a position below the support roller 2 between the two box shells.

[0026] Further, the adjustment module includes a rolling frame, the rolling frame is located between the two box shells, and the rolling frame is rotatably connected to the box shells, the flattening roller is slidably connected to the adjacent rolling frame, a sliding rod is arranged inside the rolling frame, the sliding rod is fixedly connected to the inner walls of the two box shells, a sliding groove is arranged on the outer wall of the sliding rod, a screw is arranged on the inner side of the sliding rod, the screw is rotatably connected to the inner walls of the two box shells, a sliding piece is arranged between the screw and the sliding rod, the sliding piece is slidably connected to the inner wall of the sliding groove, and the sliding piece is screwed and connected A bearing is arranged between the sliding rod and the flattening roller, the sliding member is fixedly connected to the inner ring of the bearing, the outer ring of the bearing is fixedly connected to the inner side wall of the flattening roller, one end of the screw rods on the two flattening rollers are synchronously reversely transmitted, one end of the two rolling frames are synchronously reversely transmitted, and one end of a rolling frame is transmitted to one end of the supporting roller, the output end of the driving motor is transmission-connected to one end of the supporting roller, and a transmission box is transmission-connected between one end of one of the screw rods and the bottom end of a vertical pole, and the transmission box is installed inside a box shell.

[0027] Furthermore, the inclination angle of the inclined roller 1 is a, and a is between 10 degrees and 30 degrees, the transmission ratio between one end of the transmission box close to a screw and the other end of the transmission box is sin2a, and the pitch of the thread groove on the screw is the same as the pitch of the thread groove on the vertical rod.

[0028] Furthermore, the side trimming mechanism includes two bidirectional screw rods, both of which are located between the two box shells and are rotatably connected to the box shells, two groups of side trimming frames are arranged between the two bidirectional screw rods, the side trimming frames are located above the support roller one and the support roller two, and one of the side trimming frames in the same group is rotatably connected to the two bidirectional screw rods, and the other side trimming frame in the same group is screwed together with the two bidirectional screw rods, and an avoidance groove is provided in the middle position of the side wall of the side trimming frame.

[0029] Furthermore, one end of the two bidirectional screw rods is synchronously driven, and a bidirectional screw rod and a screw rod are synchronously reversely driven, and the pitch of the thread groove on the bidirectional screw rod is twice the pitch of the thread groove on the screw rod.

[0030] Compared with the prior art, the present invention has the following beneficial effects:

[0031] 1. Through the setting of the offset mechanism, the fabric roll is placed on the retracting mechanism. After one end of the fabric passes between the upper light box and the lower light box, it bypasses the offset mechanism and passes between the upper light box and the lower light box for the second time. The offset mechanism biases the fabric so that the fabric is arranged in parallel to the tested part above the lower light box without overlapping, so that both sides of the fabric are facing up at the same time, which is convenient for the staff to detect defects on both sides of the fabric at the same time without the need for secondary inspection.

[0032] 2. Through the setting of the edge trimming mechanism and the retracting and releasing mechanism, it is convenient to adapt to fabrics of different widths. During operation, it is only necessary to rotate the vertical rod so that the two edge trimming frames in the same group clamp the fabric roller. The height of the hanger and the position of the flattening roller will be adjusted adaptively. Therefore, when fabrics of different widths are tested, the distance between the adjacent sides of the two parts to be tested of the fabric is kept at a fixed distance, avoiding deviation when the fabric is rolled up, and facilitating the release and rolling of the fabric. BRIEF DESCRIPTION OF THE DRAWINGS

[0033] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0034] Figure 2 It is a schematic diagram of the overall front structure of the present invention;

[0035] Figure 3 It is a schematic diagram of the overall side structure of the present invention;

[0036] Figure 4 It is a schematic diagram of the structure of the oblique roller 1 and the oblique roller 2 in the present invention;

[0037] Figure 5 It is a schematic diagram of cloth winding in the present invention;

[0038] Figure 6 This is a schematic diagram of the principle of the skew roller 1 and the skew roller 2 in the present invention;

[0039] Figure 7 It is a schematic diagram of an inclined roller-inclined structure in the present invention;

[0040] Figure 8 It is a schematic diagram of the internal structure of a box shell in the present invention;

[0041] Fig. 9 It is a schematic diagram of the structure of the retractable mechanism in the present invention;

[0042] Fig.10 It is a schematic diagram of the structure of the regulating module in the present invention;

[0043] Fig.11 It is a schematic diagram of the cross-sectional structure of the regulating module in the present invention.

[0044] In the figure: 100, bottom frame; 110, box shell; 200, lighting detection mechanism; 210, upper light box; 220, lower light box; 230, stand; 240, guide roller 1; 250, straight roller; 260, roller length meter; 300, trimming mechanism; 310, trimming frame; 311, avoidance groove; 320, two-way screw rod; 400, retracting and releasing mechanism; 410, support roller 1; 420, support roller 2; 430, guide roller 2; 440, flattening roller; 450, Adjustment module; 451, rolling frame; 452, sliding rod; 453, sliding groove; 454, screw; 455, sliding piece; 456, bearing; 500, offset mechanism; 510, hanger; 511, inclined roller one; 512, inclined roller two; 520, vertical pole; 530, long frame; 540, fixed roller group; 541, side seat; 542, guide roller one; 543, guide roller two; 544, guide roller three; 550, frame; 600, transmission box; 700, drive motor. DETAILED DESCRIPTION

[0045] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0046] See also Figures 1 to 4 In an embodiment of the present invention, a carpet backing fabric surface defect detection device includes a base frame 100, a lighting detection mechanism 200, an edge trimming mechanism 300, a retracting mechanism 400 and a deflection mechanism 500. The base frame 100 is the base of the entire device. Box shells 110 are fixedly installed on the tops of both ends of the base frame 100. The lighting detection mechanism 200 is located above the base frame 100 and is fixedly connected to the two box shells 110. The lighting detection mechanism 200 is used to illuminate and photograph the surface of the cloth passing through. The retracting mechanism 400 is located between one end of the two box shells 110 and is used to inspect the rolled cloth. The cloth is unrolled and reeled, the trimming mechanism 300 is located above the retracting mechanism 400, the trimming mechanism 300 is installed between the two box shells 110, the trimming mechanism 300 is used to limit the cloth roller, the offset mechanism 500 is fixed between the other ends of the two box shells 110, the offset mechanism 500 is used to guide the cloth so that the cloth part entering the offset mechanism 500 is laterally offset from the cloth part exiting the offset mechanism 500, and the drive motor 700 is fixedly installed on the outside of a box shell 110, and the drive motor 700 is used to drive the retracting mechanism 400.

[0047] Specifically, the fabric roll is placed on the retracting mechanism 400, one end of the fabric passes through between the upper light box 210 and the lower light box 220, bypasses the offset mechanism 500, and passes through between the upper light box 210 and the lower light box 220 for the second time. The offset mechanism 500 biases the fabric so that the fabric is arranged in parallel with the tested portion above the lower light box 220 without overlapping, so that both sides of the fabric are facing upward at the same time, which is convenient for the staff to detect defects on both sides of the fabric at the same time without the need for secondary inspection. Embodiment 1

[0048] like Figures 3 to 9 As shown, in this embodiment, further, the lighting detection mechanism 200 includes two stands 230, the number of stands 230 is two and they are fixed to the tops of the two box shells 110 respectively, the upper light box 210 is fixed between the tops of the two stands 230, the stands 230 are used to illuminate the fabric below, the upper light box 210 is equipped with a recognition camera, the recognition camera is used to recognize and detect the defects on the surface of the fabric, the lower light box 220 is fixed between the two stands 230 and is located below the upper light box 210. The lower light box 220 is used to illuminate the bottom surface of the fabric. Both sides of the lower light box 220 are rotatably connected with straight rollers 250. The guide roller 240 is rotatably connected to one side of the lower light box 220. The guide roller 240 is located below a straight roller 250. The roller length meter 260 is installed between the two vertical frames 230. The roller length meter 260 is used to measure the length of the fabric. The offset mechanism 500 includes a long frame 530, which is fixed between the other ends of the two box shells 110. The fixed roller group 540 is fixed The fixed roller group 540 is fixed on the top surface of the long frame 530. The side seats 541 are fixedly connected to the top surface of the long frame 530. A guide roller 1 542, a guide roller 2 543, and a guide roller 3 544 are rotatably connected between the two side seats 541. The hanger 510 is located above the fixed roller group 540. One side of the bottom end of the hanger 510 is rotatably connected to an inclined roller 1 511, and the other side of the bottom end of the hanger 510 is rotatably connected to an inclined roller 2 512. The hanger 510 can be adjusted up and down. The guide roller 1 542 is located between the inclined roller 1 511 and the inclined roller 2 512. Directly below, the guide roller three 544 is located below the position between the two inclined rollers 1 511 and the inclined roller 2 512, a bracket 550 is fixedly connected between the top surfaces of the other ends of the two box shells 110, both ends of the long frame 530 are rotatably connected with the vertical poles 520, the top of the vertical pole 520 is rotatably connected with the bracket 550, the hanger 510 is located between the two vertical poles 520, the outer side wall of the hanger 510 is provided with a threaded groove, and the hanger 510 and the two vertical poles 520 are screwed together, and the tops of the two vertical poles 520 rotate synchronously;

[0049] The retracting and releasing mechanism 400 includes a support roller 1 410 and a support roller 2 420, and the support roller 1 410 and the support roller 2 420 are both rotatably connected between the two box shells 110, and the support roller 1 410 and one end of the support roller 2 420 are synchronously transmitted. Two adjustment modules 450 are arranged on one side of the support roller 1 410, and a flattening roller 440 is arranged on the adjustment module 450. Threads are provided at both ends of the outer wall of the flattening roller 440, and the two threads on the flattening roller 440 rotate in opposite directions. A guide roller 2 430 is rotatably connected at a position below the support roller 2 420 between the two box shells 110.

[0050] In this embodiment, the guide roller 2 543, the guide roller 1 240 and the two straight rollers 250 are all arranged in two sections, and the two sections can rotate independently. When in use, one end of the cloth passes through the support roller 1 410, a flat roller 440, two straight rollers 250, the guide roller 2 543, the inclined roller 1 511, the guide roller 3 544, the inclined roller 2 512, the guide roller 2 543, the guide roller 1 240, the two straight rollers 250, another flat roller 440, the guide roller 2 430, the support roller 2 420 and The winding cloth roller is wound, and the passing cloth is continuously offset by the inclined roller 1 511 and the inclined roller 2 512, so that the cloth originally facing one side faces the other side after being guided by the offset mechanism 500, and the two cloth to be tested parts passing over the lower light box 220 do not overlap each other. The vertical rod 520 is rotated to drive the hanger 510 to move up and down, so as to adjust the height position of the inclined roller 1 511 and the inclined roller 2 512 to adapt to cloths of different widths and avoid overlapping of the two cloth to be tested parts. Embodiment 2

[0051] On the basis of the first embodiment, when the cloth width changes, the position of the flattening roller 440 needs to change accordingly.

[0052] like Figures 4 to 11As shown, in the present embodiment, the adjustment module 450 includes a rolling frame 451, the rolling frame 451 is located between the two box shells 110, and the rolling frame 451 is rotatably connected to the box shells 110, the flattening roller 440 is slidably connected to the adjacent rolling frame 451, a sliding rod 452 is arranged inside the rolling frame 451, the sliding rod 452 is fixedly connected to the inner walls of the two box shells 110, a sliding groove 453 is arranged on the outer wall of the sliding rod 452, a screw 454 is arranged on the inner side of the sliding rod 452, the screw 454 is rotatably connected to the inner walls of the two box shells 110, a sliding member 455 is arranged between the screw 454 and the sliding rod 452, the sliding member 455 is slidably connected to the inner wall of the sliding groove 453, the sliding member 455 is screwed together with the screw 454, a bearing 456 is arranged between the sliding rod 452 and the flattening roller 440, and the sliding member 455 is screwed together with the bearing 456 The inner ring is fixedly connected, the outer ring of the bearing 456 is fixedly connected to the inner wall of the flattening roller 440, one end of the screw rods 454 on the two flattening rollers 440 is synchronously reversely driven, one end of the two rolling frames 451 is synchronously reversely driven, and one end of a rolling frame 451 is driven between one end of a supporting roller 410, the output end of the drive motor 700 is transmission-connected to one end of a supporting roller 410, one end of a screw rod 454 is transmission-connected to the bottom end of a vertical pole 520 with a transmission box 600, the transmission box 600 is installed inside a box shell 110, the inclination angle of the inclined roller 511 is a, the transmission ratio between one end of the transmission box 600 close to a screw rod 454 and the other end of the transmission box 600 is sin2a, and the pitch of the thread groove on the screw rod 454 is the same as the pitch of the thread groove on the vertical pole 520.

[0053] The trimming mechanism 300 includes two bidirectional screw rods 320, both of which are located between the two box shells 110, and the bidirectional screw rods 320 are rotatably connected to the box shells 110, two groups of trimming frames 310 are arranged between the two bidirectional screw rods 320, the trimming frames 310 are located above the support roller 1 410 and the support roller 2 420, and one trimming frame 310 in the same group of trimming frames 310 is rotatably connected to the two bidirectional screw rods 320, and the other trimming frame 310 in the same group of trimming frames 310 is screwed together with the two bidirectional screw rods 320, an avoidance groove 311 is provided in the middle position of the side wall of the trimming frame 310, one end of the two bidirectional screw rods 320 is synchronously driven, and a bidirectional screw rod 320 is synchronously reversely driven with a screw rod 454, and the pitch of the thread groove on the bidirectional screw rod 320 is twice the pitch of the thread groove on the screw rod 454.

[0054] In specific implementation, taking the increase of two unit lengths of the cloth width as an example, a vertical rod 520 is rotated, and the vertical rod 520 drives a screw rod 454 to rotate through the transmission box 600. The rotation of one screw rod 454 drives two bidirectional screw rods 320 to rotate synchronously in opposite directions. When the bidirectional screw rod 320 rotates, it drives another side-aligning frame 310 in the same group to move horizontally, and the position of one side-aligning frame 310 in the same group of side-aligning frames 310 remains unchanged, so that the two side-aligning frames 310 in the same group clamp the cloth roller, that is, the distance between the two side-aligning frames 310 in the same group increases by two unit distances. At the same time, since the pitch of the wire groove on the bidirectional screw rod 320 is twice the pitch of the thread groove on the screw rod 454, the screw rod 454 drives the flattening roller 440 to move horizontally by one unit distance through the sliding member 455, so that the middle position of the flattening roller 440 is always aligned with the middle position of the cloth width, which is convenient for flattening the roller 440. 40 pairs of cloth are spread out to both sides, thereby avoiding or reducing cloth curling and wrinkles, and because the transmission ratio between the screw 454 and the vertical rod 520 is sin2a, and the pitch on the screw 454 is the same as the pitch on the vertical rod 520, when the flattening roller 440 moves a unit distance horizontally, the hanger 510 moves up and down 1 / sin2a unit distance, so that when cloths of different widths are tested, the distance between the adjacent sides of the two to-be-tested parts of the cloth is kept at a fixed distance, which is convenient for applying cloths of different widths, and during operation, it is only necessary to rotate the vertical rod 520 so that the two edge-aligning frames 310 of the same group clamp the cloth rollers, and the height of the hanger 510 and the position of the flattening roller 440 will be adjusted adaptively, simplifying the operation, and through the setting of the rolling frame 451, the rotation of the support roller 410 actively drives the two rolling frames 451 to rotate, thereby driving the flattening roller 440 to rotate.

[0055] It will be apparent to those skilled in the art that the invention is not limited to the details of the exemplary embodiments described above and that the invention can be implemented in other specific forms without departing from the spirit or essential features of the invention. Therefore, the embodiments should be considered exemplary and non-limiting in all respects, and the scope of the invention is defined by the appended claims rather than the foregoing description, and it is intended that all variations falling within the meaning and scope of the equivalent elements of the claims be included in the invention. Any reference numeral in a claim should not be considered as limiting the claim to which it relates.

[0056] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

Claims

1. A carpet backing surface defect detection device, characterized in that: include: The bottom frame (100) is the base of the entire device, and the tops of both ends of the bottom frame (100) are fixedly mounted with a box shell (110); An illumination detection mechanism (200): located above the base frame (100) and fixedly connected to the two box shells (110), the illumination detection mechanism (200) being used to illuminate and photograph the surface of the passing cloth for inspection; The retracting and unreeling mechanism (400) is located between one end of the two box shells (110) and is used for unrolling and rewinding the rolled fabric; An edge trimming mechanism (300): located above the retractable mechanism (400), the edge trimming mechanism (300) being installed between two box shells (110), and the edge trimming mechanism (300) being used to limit the position of the cloth roller; A deflection mechanism (500): fixed between the other ends of the two box shells (110), the deflection mechanism (500) is used to guide the cloth so that the cloth portion entering the deflection mechanism (500) is laterally deflected from the cloth portion exiting the deflection mechanism (500); A driving motor (700): fixedly mounted on the outside of a box shell (110), the driving motor (700) being used to drive the retractable mechanism (400); The offset mechanism (500) comprises: Long frame (530): fixed between the other ends of the two box shells (110); A fixed roller group (540): fixed on the top surface of the long frame (530), the fixed roller group (540) comprising two side seats (541), the side seats (541) being fixedly connected to the top surface of the long frame (530), and a guide roller 1 (542), a guide roller 2 (543), and a guide roller 3 (544) being rotatably connected between the two side seats (541); A hanger (510): located above the fixed roller group (540), one side of the bottom end of the hanger (510) is rotatably connected to an inclined roller 1 (511), and the other side of the bottom end of the hanger (510) is rotatably connected to an inclined roller 2 (512), and the hanger (510) can be adjusted up and down; The guide roller one (542) is located directly below the inclined roller one (511), and the guide roller three (544) is located below the position between the two inclined rollers one (511) and the inclined roller two (512).

2. The carpet backing surface defect detection device according to claim 1, characterized in that: The lighting detection mechanism (200) comprises: Stands (230): two in number and respectively fixed on the top ends of the two box shells (110); An upper light box (210): fixed between the top ends of the two vertical frames (230), the vertical frames (230) being used to illuminate the fabric below, and a recognition camera being installed in the upper light box (210), the recognition camera being used to recognize and detect defects on the surface of the fabric; A lower light box (220): fixed between the two upright frames (230) and located below the upper light box (210); the lower light box (220) is used to illuminate the bottom surface of the fabric; both sides of the lower light box (220) are rotatably connected to straight rollers (250); A guide roller (240) is rotatably connected to one side of the lower light box (220), and the guide roller (240) is located below a straight roller (250); Roller length meter (260): installed between the two stands (230), the roller length meter (260) is used to measure the length of the cloth.

3. The carpet backing surface defect detection device according to claim 2, characterized in that: A bracket (550) is fixedly connected between the top surfaces of the other ends of the two box shells (110), and both ends of the long frame (530) are rotatably connected to the vertical poles (520), and the top of the vertical pole (520) is rotatably connected to the bracket (550), and the hanger (510) is located between the two vertical poles (520). The outer wall of the hanger (510) is provided with a threaded groove, and the hanger (510) and the two vertical poles (520) are screwed together.

4. The carpet backing surface defect detection device according to claim 3, characterized in that: The retracting and releasing mechanism (400) comprises a supporting roller 1 (410) and a supporting roller 2 (420), wherein the supporting roller 1 (410) and the supporting roller 2 (420) are both rotatably connected between the two box shells (110), and the supporting roller 1 (410) and one end of the supporting roller 2 (420) are synchronously driven, and two adjustment modules (450) are arranged on one side of the supporting roller 1 (410), and a flattening roller (440) is arranged on the adjustment module (450), and threads are provided at both ends of the outer wall of the flattening roller (440), and the two threads on the flattening roller (440) rotate in opposite directions, and a guide roller 2 (430) is rotatably connected at a position below the supporting roller 2 (420) between the two box shells (110).

5. The carpet backing surface defect detection device according to claim 4, characterized in that: The adjustment module (450) comprises a rolling frame (451), wherein the rolling frame (451) is located between the two box shells (110), and the rolling frame (451) is rotatably connected to the box shells (110); the flattening roller (440) is slidably connected to the adjacent rolling frame (451); a sliding rod (452) is arranged inside the rolling frame (451), and the sliding rod (452) is fixedly connected to the inner walls of the two box shells (110); a sliding groove (453) is provided on the outer wall of the sliding rod (452); a screw rod (454) is arranged on the inner side of the sliding rod (452), and the screw rod (454) is rotatably connected to the inner walls of the two box shells (110); a sliding member (455) is arranged between the screw rod (454) and the sliding rod (452), and the sliding member (455) is slidably connected to the inner wall of the sliding groove (453); the sliding member (455) The roller (440) is screwed together with the screw rod (454), a bearing (456) is arranged between the slide rod (452) and the flattening roller (440), the slide member (455) is fixedly connected to the inner ring of the bearing (456), the outer ring of the bearing (456) is fixedly connected to the inner wall of the flattening roller (440), one end of the screw rod (454) on the two flattening rollers (440) is synchronously reversely driven, one end of the two rolling frames (451) is synchronously reversely driven, and one end of a rolling frame (451) is driven between one end of the supporting roller (410), the output end of the driving motor (700) is drivingly connected to one end of the supporting roller (410), and a transmission box (600) is drivingly connected between one end of the screw rod (454) and the bottom end of a vertical pole (520), and the transmission box (600) is installed inside a box shell (110).

6. The carpet backing surface defect detection device according to claim 5, characterized in that: The inclination angle of the inclined roller 1 (511) is a, the transmission ratio between one end of the transmission box (600) close to a screw rod (454) and the other end of the transmission box (600) is sin2a, and the pitch of the thread groove on the screw rod (454) is the same as the pitch of the thread groove on the vertical rod (520).

7. The carpet backing surface defect detection device according to claim 5, characterized in that: The edge trimming mechanism (300) comprises two bidirectional screw rods (320), the two bidirectional screw rods (320) are both located between the two box shells (110), and the bidirectional screw rods (320) are rotatably connected to the box shells (110), two groups of edge trimming frames (310) are arranged between the two bidirectional screw rods (320), the edge trimming frames (310) are located above the first support roller (410) and the second support roller (420), and one of the edge trimming frames (310) in the same group is rotatably connected to the two bidirectional screw rods (320), and the other of the edge trimming frames (310) in the same group is screw-engaged with the two bidirectional screw rods (320), and a sidewall of the edge trimming frame (310) is provided with an avoidance groove (311) in the middle of the sidewall.

8. The carpet backing surface defect detection device according to claim 7, characterized in that: One ends of the two bidirectional screw rods (320) are synchronously driven, and a bidirectional screw rod (320) and a screw rod (454) are synchronously driven in the opposite direction, and the pitch of the thread groove on the bidirectional screw rod (320) is twice the pitch of the thread groove on the screw rod (454).

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