Detection device for plastic woven bag production

Abstract

The invention relates to the technical field of intelligent visual inspection, and particularly discloses a detection device for plastic woven bag production, which comprises two groups of support plates, a pay-off roller and a wind-up roller are rotatably mounted between the two groups of support plates, and two groups of separation plates capable of alternately sliding and adjusting up and down are arranged between the pay-off roller and the wind-up roller. A wire collecting device is arranged between the separating plate and the wind-up roller, a pay-off device capable of being adjusted in a reciprocating sliding mode is installed on the wire collecting device, and the device further comprises a detection assembly. According to the invention, the multi-angle relative position of the detection assembly and the woven cloth is dynamically adjusted through the adjusting assembly, so that the problems of laser diffuse reflection interference and visual noisy points caused by grid textures and concave-convex characteristics on the surface of the woven cloth are effectively solved; by means of the multi-angle data fusion technology, the recognition sensitivity of defects such as micro broken wires, low-contrast stains and embedded hard particles is remarkably improved, high precision and high coverage rate are achieved at the same time on the premise of non-contact detection, and the misjudgment rate and the omission ratio are greatly reduced.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of intelligent visual detection, in particular to a detection device for plastic woven bag production. BACKGROUND

[0002] Plastic woven bags (commonly known as "snake skin bags") are the most common soft packaging in daily life, widely used in agriculture, construction, flood relief and other fields, among which weaving is the core forming process, which directly affects the texture of plastic woven bags and the efficiency of subsequent bag making. In order to ensure the quality, performance and consistency of the final product in the initial stage of production, the plastic woven bag needs to be detected during the weaving process, so as to minimize cost and waste.

[0003] In the prior art, the weaving process of plastic woven bags is usually detected by contact detection or non-contact visual / laser detection. In the contact detection, the probe and other equipment are used to detect the weaving process, which is easy to scratch the bag surface or cause the displacement of the woven yarn, and the response is slow, which is difficult to keep up with the production line speed. The non-contact visual / laser detection is difficult to accurately identify the surface defects of the plastic woven bag when facing the unique fine texture of the woven bag, so that the plastic woven bag is difficult to pass the subsequent quality detection. In summary, the prior art has difficulty in overcoming key problems such as poor adaptability, contact damage, missed detection rate and the like. SUMMARY

[0004] The present application aims to provide a detection device for plastic woven bag production to solve at least one of the technical problems in the prior art.

[0005] To achieve the above-mentioned purpose, the present application provides the following technical scheme: a detection device for plastic woven bag production, comprising two groups of supporting plates, a pay-off roller and a winding roller are rotatably installed between the two groups of supporting plates, two groups of separation plates capable of alternatingly sliding up and down are arranged between the pay-off roller and the winding roller, a wire collector is arranged between the separation plates and the winding roller, and a pay-off device capable of reciprocating sliding adjustment is installed on the wire collector.

[0006] Further comprising a detection assembly for detecting the surface defects of the plastic woven bag.

[0007] Further comprising an adjusting assembly for adjusting the relative position and angle between the detection assembly and the plastic woven bag.

[0008] Preferably, two groups of the swing plates are rotatably installed between the two groups of the supporting plates through the rotating shafts, and torsional springs are arranged between the two groups of the swing plates and the rotating shafts.

[0009] Preferably, rotators are rotatably installed on the side walls of the two groups of the supporting plates, swing members are rotatably installed on the upper ends of the rotators and have rotating directions perpendicular to the rotators, torsional springs are arranged between the swing members and the rotators, connectors are rotatably installed between the two groups of the supporting plates, concentrators are fixedly installed above the connectors, horizontal grooves are arranged in the bottom ends of the concentrators and can allow the swing members to slide, swing handles are rotatably installed on the side walls of the supporting plates and can reciprocatingly swing and adjust, and one end of each swing handle can contact and abut against the swing member.

[0010] Preferably, a motor is fixedly installed on the side wall of the supporting plate, a driving wheel is fixedly installed on the end of the main shaft of the motor and protrudes out of the supporting plate, a transmission wheel and a cam coaxially fixed with the eccentric wheel are rotatably installed on the side wall of the supporting plate, the driving wheel and the transmission wheel are driven through a belt, the transmission wheel and the side wall of the cam are provided with tooth grooves that can mesh with each other, a torsional spring is arranged between the swing handle and the supporting plate, and the cam can always contact and abut against the swing handle.

[0011] Preferably, a rotating shaft that can rotate is installed on the side wall of the supporting plate, a sliding tube that can slide and adjust is installed on the outer wall of the rotating shaft, a rotating tube that is slidably installed on the outer wall of the rotating shaft through a key is rotatably installed on the side end of the sliding tube, a tooth groove is arranged on the outer wall of the end of the winding roller that protrudes out of the supporting plate, and a tooth groove that can mesh with the tooth groove on the outer wall of the winding roller is arranged on the outer wall of the rotating tube.

[0012] Preferably, the adjusting assembly comprises a supporting roller rotatably installed between the two groups of the supporting plates, an arc-shaped groove is arranged in the side wall of the supporting plate, a sliding rod is slidably installed in the arc-shaped groove, a belt wheel is fixedly connected to the end of the sliding rod that protrudes out of the arc-shaped groove, the belt wheel is rotatably installed on the side wall of the supporting plate, a rotating wheel that can mesh with the tooth groove on the outer wall of the rotating tube is also rotatably installed on the side wall of the supporting plate, the rotating tube only meshes with one of the winding roller or the rotating wheel at the same time, the belt wheel and the rotating wheel are driven through a belt, a swing strip that can reciprocatingly swing and adjust is installed on the outer wall of the supporting plate, a spring is arranged between the end of the swing strip and the sliding tube, and a blocking block is arranged on the side wall of the supporting plate on both sides of the swing strip.

[0013] Preferably, the rotating shaft outer wall is fixedly provided with a rotating ring, the support plate side wall is rotatably provided with a rotating cam coaxial with a transmission wheel, a connecting rod is rotatably arranged between the rotating cam side wall and the connector, and the rotator outer wall is fixedly provided with a fixed hook.

[0014] Preferably, the hub side wall is fixedly provided with a lever, the support plate side wall is rotatably provided with a ratchet wheel and a rotating gear in engagement with each other, and the ratchet wheel and the rotating gear are coaxially and fixedly provided with elastic pressure rollers.

[0015] Preferably, the detection assembly comprises a detection piece arranged between the two groups of support plates through a three-dimensional moving platform.

[0016] Preferably, the separation holes on the separation plate are each provided with two groups of upper and lower separation holes, and a transition groove is arranged between the two groups of separation holes.

[0017] Compared with the prior art, the present application has the following advantages:

[0018] The present application dynamically adjusts the multi-angle relative position of the detection assembly and the woven cloth through the adjusting assembly, effectively overcomes the laser diffuse reflection interference and visual noise caused by the grid texture and concave-convex characteristics of the surface of the woven cloth, and improves the recognition sensitivity of micro-fine broken filaments, low-contrast stains and embedded hard particles. Under the premise of non-contact detection, high precision and high coverage rate are realized at the same time, the misjudgment and omission rate are greatly reduced, physical damage to the cloth surface caused by traditional contact detection is avoided, and the capture ability of complex surface defects is enhanced through the self-adaptive positioning mechanism, thereby forming multi-dimensional reliable protection of the quality of the woven cloth and providing key technical support for the standardized production of high-end plastic woven bags. BRIEF DESCRIPTION OF DRAWINGS

[0019] Figure 1 is a perspective view of the present application;

[0020] Figure 2 is a side view of the present application;

[0021] Figure 3 is a sectional view of the rotating shaft in the present application;

[0022] Figure 4 is a sectional view of the rotating cam in the present application;

[0023] Figure 5 is a sectional view of the support plate in the present application;

[0024] Figure 6 is a perspective view of the swing piece in the present application;

[0025] Figure 7 is a front view of the separation plate in the present application;

[0026] Figure 8 is a simple diagram of the texture of the woven cloth in the present application.

[0027] In the figure: 1, support plate; 2, pay-off roller; 3, winding roller; 4, separation plate; 5, wire collector; 6, driving wheel; 7, transmission wheel; 8, cam; 9, swing handle; 10, rotator; 11, swing piece; 12, lever; 13, ratchet wheel; 14, rotating gear; 15, pulley; 16, sliding tube; 17, swing bar; 18, rotating wheel; 19, rotating tube; 20, rotating shaft; 21, fixed hook; 22, connecting rod; 23, swing plate; 24, rotating cam; 25, support roller; 26, motor; 27, slide bar; 28, eccentric wheel; 29, detection piece; 30, elastic pressure roller; 31, arc-shaped groove; 32, slide bar; 33, rotating ring; 34, connector. DETAILED DESCRIPTION

[0028] The technical solutions in the embodiments of the present application will be described clearly and completely below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative work fall within the scope of protection of the present application.

[0029] Please refer to Figures 1 to 8 The present application provides a technical solution: a detection device for plastic woven bag production, comprising two groups of support plates 1, between which pay-off rollers 2 and winding rollers 3 are rotatably installed, between which two groups of separation plates 4 capable of alternatingly sliding up and down for adjustment are arranged, between the separation plates 4 and the winding rollers 3, wire collectors 5 are arranged, and on the wire collectors 5, pay-off devices capable of reciprocating sliding adjustment are installed.

[0030] Further comprising a detection assembly, which is used for detecting surface defects of the plastic woven bag.

[0031] Further comprising an adjustment assembly, which is used for adjusting the relative position and angle between the detection assembly and the plastic woven bag.

[0032] In use, the plastic plate line is alternately threaded through the two sets of separation plates 4 from the pay-off roller 2, then alternately threaded through the collector 5, so that the plastic plate line is divided into two groups and alternately exchanged, and the pay-off roller is driven by the external driving structure to release the weft between the two groups of plastic plate lines in the gap of the position exchange, complete the weaving of the plastic woven cloth, and then the winding roller 3 is driven by the external structure to wind the woven plastic woven cloth, when the plastic woven cloth is formed and not wound, the detection assembly can detect the surface of the plastic woven cloth by laser or intelligent vision comparison, because the surface of the plastic woven cloth has a special fine texture, the surface of the plastic woven cloth is not only uneven, but also the high-melting-point particles mixed in the reclaimed material or color master batch are stretched into "hard particles" and embedded in the flat silk, finally forming a point-like protrusion on the cloth surface, so that the laser on the surface of the plastic woven cloth will experience complex diffuse reflection, resulting in a weak reflected signal received by the receiving device, and the "grid" formed by the intersection of the flat silk is a periodic concave-convex structure, which is easy to misjudge as a defect, and the intelligent vision comparison is limited by the pixel limit, it is difficult to capture the broken wire with a width of about 0.1mm, and the low-contrast oil stains or water stains are almost submerged in the quantization noise, resulting in missed detection, at this time, the relative position and angle between the detection assembly and the plastic woven bag are continuously adjusted by the adjusting assembly, the same cloth position is detected at multiple angles, the detection results are combined to comprehensively judge whether there is a defect on the surface of the plastic woven cloth, and the problem of high missed detection rate of non-contact visual / laser detection is optimized on the basis of avoiding damage to the cloth surface by traditional contact detection, so as to improve the quality of the plastic woven cloth.

[0033] In this way, the multi-angle relative position of the detection assembly and the woven cloth is dynamically adjusted by the adjusting assembly, effectively overcoming the problems of laser diffuse reflection interference and visual noise caused by the grid texture and concave-convex characteristics of the woven cloth surface. The multi-angle data fusion technology significantly improves the recognition sensitivity of micro-fine broken wires, low-contrast stains and embedded hard particles, realizes high precision and high coverage rate under the premise of non-contact detection, greatly reduces the misjudgment and missed detection rate, not only avoids the physical damage to the cloth surface by traditional contact detection, but also enhances the capture ability of complex surface defects through the self-adaptive positioning mechanism, finally forms a multi-dimensional reliable guarantee for the quality of the woven cloth, and provides key technical support for the standardized production of high-end plastic woven bags.

[0034] Further, two sets of swing plates 23 are rotatably installed between the two sets of supporting plates 1 through the shaft, and torsional springs are arranged between the two sets of swing plates 23 and the shaft. Two sets of eccentric wheels 28 that can be rotatably adjusted are arranged above the two sets of swing plates 23, the eccentric wheels 28 are rotatably installed between the two sets of supporting plates 1 through the shaft, and slide rods 27 are slidably installed at the ends of the two sets of swing plates 23. The two sets of slide rods 27 are fixedly connected with the bottom ends of the two sets of separation plates 4, separation holes are formed in the two sets of separation plates 4, and the separation holes in the two sets of separation plates 4 are alternately arranged.

[0035] According to the above embodiment, a specific embodiment for driving the two sets of separation plates 4 to slide up and down alternately is provided, and the specific reference is made to Figure 4 When the external driving structure drives the two sets of eccentric wheels 28 to rotate, the two sets of eccentric wheels 28 are centrally symmetrical with the rotation shaft as the center, so that the eccentric wheels 28 press the swing plates 23 below alternately to swing downward when rotating, and pull the two sets of slide rods 27 and the separation plates 4 to slide vertically and reciprocatingly alternately, that is, the driving of the two sets of separation plates 4 to slide up and down alternately is completed.

[0036] Further, the side wall of the two sets of support plates 1 is rotatably installed with a rotator 10, the upper end of the rotator 10 is rotatably installed with a swing piece 11, the rotation direction of the swing piece 11 is perpendicular to the rotator 10, a torsional spring is arranged between the swing piece 11 and the rotator 10, the two sets of support plates 1 are rotatably installed with a connector 34, the upper part of the connector 34 is fixedly installed with a concentrator 5, the bottom end of the concentrator 5 is provided with a horizontal groove capable of sliding the swing piece 11, the side wall of the support plate 1 is rotatably installed with a swing handle 9 capable of reciprocating swing adjustment, and one end of the swing handle 9 can contact and abut against the swing piece 11.

[0037] According to the above embodiment, a specific embodiment for driving the two sets of separation plates 4 to slide up and down alternately is provided, and the specific reference is made to Figure 6 When the external driving structure drives the two sets of eccentric wheels 28 to rotate, the two sets of eccentric wheels 28 are centrally symmetrical with the rotation shaft as the center, so that the eccentric wheels 28 press the swing plates 23 below alternately to swing downward when rotating, and pull the two sets of slide rods 27 and the separation plates 4 to slide vertically and reciprocatingly alternately, that is, the driving of the two sets of separation plates 4 to slide up and down alternately is completed.

[0038] Further, the side wall of the two sets of support plates 1 is rotatably installed with a rotator 10, the upper end of the rotator 10 is rotatably installed with a swing piece 11, the rotation direction of the swing piece 11 is perpendicular to the rotator 10, a torsional spring is arranged between the swing piece 11 and the rotator 10, the two sets of support plates 1 are rotatably installed with a connector 34, the upper part of the connector 34 is fixedly installed with a concentrator 5, the bottom end of the concentrator 5 is provided with a horizontal groove capable of sliding the swing piece 11, the side wall of the support plate 1 is rotatably installed with a swing handle 9 capable of reciprocating swing adjustment, and one end of the swing handle 9 can contact and abut against the swing piece 11.

[0039] According to the above embodiment, a specific embodiment for driving the two sets of separation plates 4 to slide up and down alternately is provided, and the specific reference is made to Figure 2 When the external driving structure drives the two sets of eccentric wheels 28 to rotate, the two sets of eccentric wheels 28 are centrally symmetrical with the rotation shaft as the center, so that the eccentric wheels 28 press the swing plates 23 below alternately to swing downward when rotating, and pull the two sets of slide rods 27 and the separation plates 4 to slide vertically and reciprocatingly alternately, that is, the driving of the two sets of separation plates 4 to slide up and down alternately is completed.

[0040] Further, the side wall of the support plate 1 is provided with a rotatable rotating shaft 20, the outer wall of the rotating shaft 20 is provided with a sliding pipe 16 which can be adjusted by sliding, the side end of the sliding pipe 16 is rotatably provided with a rotating pipe 19 which is slidably installed on the outer wall of the rotating shaft 20 by means of a flat key, and the outer wall of one end of the winding roller 3 which passes through the support plate 1 is provided with a tooth groove, and the outer wall of the rotating pipe 19 is provided with a tooth groove which can be meshed with the tooth groove of the outer wall of the winding roller 3.

[0041] According to the above-mentioned embodiment, when the external driving structure drives the rotating shaft 20 to rotate, the rotating pipe 19 can drive the winding roller 3 to rotate at this time. Since the damping is provided between the support plate 1 and the laying roller 2, the tension of the thread at the winding roller 3 can be maintained by the active pulling force of the winding roller 3, so as to ensure that there is enough space for the laying device to pass through at the yarn concentrator 5.

[0042] Further, the adjusting assembly comprises a supporting roller 25 which is rotatably installed between the two groups of support plates 1, the side wall of the support plate 1 is provided with an arc-shaped groove 31, the arc-shaped groove 31 is slidably provided with a sliding rod 32, the end of the sliding rod 32 which passes through the arc-shaped groove 31 is fixedly connected with a belt pulley 15, the belt pulley 15 is rotatably installed on the side wall of the support plate 1, the side wall of the support plate 1 is further rotatably provided with a rotating wheel 18 which can be meshed with the tooth groove of the outer wall of the rotating pipe 19, and the rotating pipe 19 is meshed with only one of the winding roller 3 or the rotating wheel 18 at the same time, the belt pulley 15 and the rotating wheel 18 are driven by a belt, the outer wall of the support plate 1 is provided with a swing bar 17 which can be reciprocally swung, a spring is arranged between the end of the swing bar 17 and the sliding pipe 16, and the side wall of the support plate 1 on both sides of the swing bar 17 is provided with a blocking block.

[0043] According to the above-mentioned embodiment, a specific embodiment of the adjusting assembly is provided, and specific reference can be made to the description of the adjusting assembly in the above-mentioned embodiment. Figure 4 When the external driving structure drives the swing bar 17 to reciprocally swing, the swing bar 17 drives the sliding pipe 16 and the rotating pipe 19 to slide along the outer wall of the rotating shaft 20 by means of the spring, so that the rotating pipe 19 is meshed with the rotating wheel 18 and is disengaged from the winding roller 3. When the rotating wheel 18 rotates, the belt pulley 15 is driven by the belt, the sliding rod 32 is driven by the belt pulley 15 to slide in the arc-shaped groove 31, the woven fabric is transferred from the supporting roller 25 to above the sliding rod 32 and rotates around the supporting roller 25 as the center, the relative position between the detection assembly and the woven fabric is adjusted, and since the bending degree and the tension of the thread gradually decrease when the thread passes around the sliding rod 32 and the supporting roller 25, the contrast dimension during the intelligent vision contrast is further enriched, and the accuracy of the detection result is improved by superimposing multiple recognition dimensions.

[0044] It is worth mentioning that when the rotating pipe 19 slides, the winding roller 3 will rotate in the opposite direction, a part of the woven fabric is released to compensate for the tension when the thread is transferred from the supporting roller 25 to the sliding rod 32, the relative position and angle between the detection assembly and the woven fabric are adjusted under the premise that the tension size is unchanged, and the stability of the weaving process is ensured.

[0045] Further, the rotating shaft 20 is fixedly installed with a rotating ring 33, the side wall of the support plate 1 is rotatably installed with a rotating cam 24 coaxial with the transmission wheel 7, the side wall of the rotating cam 24 is rotatably installed with a connecting rod 22 between the connector 34, and the outer wall of the rotating device 10 is fixedly installed with a fixed hook 21. The outer wall of the rotating ring 33 is annularly distributed with a plurality of stick-shaped strips, and the fixed hook 21 can be in contact with the stick-shaped strips.

[0046] According to the above embodiment, when the transmission wheel 7 rotates, the rotating cam 24 will rotate together, and the connecting rod 22 will drive the hub 5 to reciprocate with the connector 34 as the center, while tamping the weft, the rotating device 10 drives the fixed hook 21 to swing and pulls the rotating ring 33 to rotate with the rotating shaft 20, so as to achieve the purpose of driving the rotating shaft 20 to rotate.

[0047] Further, the hub 5 is fixedly installed with a push rod 12 on the side wall, and the side wall of the support plate 1 is rotatably installed with a ratchet wheel 13 and a rotating gear 14 that are engaged with each other. The ratchet wheel 13 and the rotating gear 14 are both coaxially fixedly installed with an elastic pressure roller 30, and the push rod 12 can be in contact with the ratchet wheel 13.

[0048] According to the above embodiment, when the hub 5 and the rotating device 10 reciprocate together, the push rod 12 can drive the ratchet wheel 13 and the rotating gear 14 to rotate relatively, so that the two elastic pressure rollers 30 roll relatively to provide a constant and gentle pressure for the woven cloth, slightly flatten it, eliminate the sharp fluctuations and shaking on the surface, avoid causing damage, and improve the stability and accuracy of laser or intelligent visual identification.

[0049] Further, the detection assembly comprises a detection piece 29 arranged between the two support plates 1 through a three-dimensional moving platform.

[0050] According to the above embodiment, since the detection piece 29 can move above the woven cloth through the three-dimensional moving platform, and the distance and angle between the warp and the detection piece 29 are adjusted by the adjusting assembly, the detection dimension can be further increased, especially when the textile cloth on the outer wall of the support roller 25 is detected, it can better cooperate with the multi-stage stretching interval formed by the textile cloth on the outer wall of the support roller 25, thereby improving the accuracy of the detection result.

[0051] Among them, the detection piece 29 can adopt image sensors, visual sensors and other detection instruments, so as to collect the surface defects of the generated cloth, and realize the detection purpose by comparing with the good cloth.

[0052] Further, the separation holes on the separation plate 4 are each provided with two groups of upper and lower separation holes, and a transition groove is arranged between the two groups of separation holes.

[0053] According to the above-mentioned embodiments, when the separation holes on the separation plate 4 contain impurities, the warp threads are prone to be hooked or broken, at this time, the two groups of warp threads can be pulled into another group of separation holes along the transition groove through the external structure, and the replacement group can be cleaned, and when the adjusting assembly adjusts the position of the warp threads, the support roller 25 and the thread collector 5 can also be cleaned, without the need to rewire, which greatly reduces the cleaning difficulty of the device.

[0054] The standard parts used in the embodiments can be directly purchased from the market, and the non-standard structural parts according to the description and drawings can also be directly processed according to the existing technical knowledge without doubt, and the connection mode of each part adopts the mature conventional means in the existing technology, and the machinery, parts and equipment all adopt the conventional models in the existing technology, so specific descriptions are not made here.

[0055] Although the embodiments of the present application have been shown and described, it can be understood by those skilled in the art that various changes, modifications, replacements and modifications can be made to these embodiments without departing from the principles and spirits of the present application, and the scope of the present application is defined by the appended claims and their equivalents.

Claims

1. A detection device for plastic woven bag production, comprising two groups of supporting plates (1), characterized in that: Two groups said the support plate (1) between the rotating installation pay line roller (2) and winding roller (3), the pay line roller (2) and winding roller (3) between the two groups are set up can be up and down alternately sliding adjustment of the separation plate (4), the separation plate (4) and winding roller (3) between the set of wire collector (5), the wire collector (5) on the installation can reciprocating sliding adjustment of the pay-off device; Further comprising a detection assembly, the detection assembly is used for detecting the surface defect of the plastic woven bag; Further comprising an adjusting assembly, the adjusting assembly is used for adjusting the relative position and angle between the detection assembly and the plastic woven bag.

2. The detection device for the production of plastic woven bags according to claim 1, characterized in that: Two groups said the support plate (1) between the rotating shaft rotating installation of two groups of swing plate (23), and two groups said the swing plate (23) and rotating shaft are equipped with torsional spring, two groups said the swing plate (23) top are equipped with two groups of eccentric wheel (28) can be rotating adjustment, the eccentric wheel (28) is rotatingly installed between the two groups of support plate (1), two groups said the swing plate (23) end are slidingly installed with slide rod (27), two groups said the slide rod (27) are respectively fixedly connected with two groups of separation plate (4) bottom, two groups said the separation plate (4) are all equipped with separation hole, and the separation holes on the two groups of separation plate (4) are alternately arranged.

3. The detection device for the production of plastic woven bags according to claim 2, characterized in that: Two groups said the support plate (1) side wall are rotatingly installed with rotator (10), the rotator (10) upper end is rotatingly installed with swing piece (11) whose rotating direction is perpendicular to the rotator (10), and the swing piece (11) and the rotator (10) are equipped with torsional spring, two groups said the support plate (1) between the rotating installation connector (34), the connector (34) top is fixedly installed with wire collector (5), the wire collector (5) bottom is equipped with horizontal groove capable of sliding swing piece (11), the support plate (1) side wall is rotatingly installed with swing handle (9) capable of reciprocating swing adjustment, and one end of the swing handle (9) can contact and abut against the swing piece (11).

4. The detection device for the production of plastic woven bags according to claim 3, characterized in that: The support plate (1) side wall is fixedly installed with motor (26), the main shaft of the motor (26) penetrates one end of the support plate (1) and is fixedly installed with driving wheel (6), the support plate (1) side wall is rotatingly installed with transmission wheel (7) and cam (8) fixedly coaxial with eccentric wheel (28), the driving wheel (6) and the transmission wheel (7) are driven by the belt, the transmission wheel (7) and the cam (8) side wall are equipped with intermeshing tooth groove, the swing handle (9) and the support plate (1) are equipped with torsional spring, the cam (8) can always contact and abut against the swing handle (9).

5. The detection device for the production of plastic woven bags according to claim 4, characterized in that: The support plate (1) side wall is installed with rotating rotating shaft (20), the rotating shaft (20) outer wall is installed with sliding pipe (16) capable of sliding adjustment, the sliding pipe (16) side end is rotatingly installed with rotating pipe (19) slidingly installed on the outer wall of the rotating shaft (20) through the key, the winding roller (3) penetrates one end of the support plate (1) and is equipped with tooth groove on the outer wall, the rotating pipe (19) outer wall is equipped with tooth groove capable of intermeshing with the tooth groove on the outer wall of the winding roller (3).

6. The detection device for the production of plastic woven bags according to claim 5, characterized in that: The adjusting assembly comprises a supporting roller (25) rotatably mounted between two groups of supporting plates (1), the side wall of the supporting plate (1) is provided with an arc-shaped slot (31), a sliding rod (32) is slidably mounted in the arc-shaped slot (31), the end of the sliding rod (32) penetrating out of the arc-shaped slot (31) is fixedly connected with a belt pulley (15), the belt pulley (15) is rotatably mounted on the side wall of the supporting plate (1), the side wall of the supporting plate (1) is also rotatably mounted with a rotating wheel (18) capable of being engaged with the toothed groove on the outer wall of the rotating tube (19), and the rotating tube (19) is engaged with only one of the winding roller (3) or the rotating wheel (18) at the same time, the belt pulley (15) and the rotating wheel (18) are driven by a belt, the outer wall of the supporting plate (1) is mounted with a swing bar (17) capable of reciprocating swing adjustment, a spring is arranged between the end of the swing bar (17) and the sliding tube (16), and the side wall of the supporting plate (1) on both sides of the swing bar (17) is provided with a blocking block.

7. The detection device for the production of plastic woven bags according to claim 5, characterized in that: The outer wall of the rotating shaft (20) is fixedly mounted with a rotating ring (33), the side wall of the supporting plate (1) is rotatably mounted with a rotating cam (24) coaxial with the transmission wheel (7), the side wall of the rotating cam (24) and the connector (34) are rotatably mounted with a connecting rod (22), the outer wall of the rotator (10) is fixedly mounted with a fixed hook (21), the outer wall of the rotating ring (33) is annularly distributed with a plurality of stick-shaped bars, and the fixed hook (21) can be in contact with the stick-shaped bars.

8. The detection device for the production of plastic woven bags according to claim 7, characterized in that: The side wall of the hub (5) is fixedly mounted with a dial lever (12), the side wall of the supporting plate (1) is rotatably mounted with a ratchet wheel (13) and a rotating gear (14) in engagement with each other, the ratchet wheel (13) and the rotating gear (14) are both coaxially fixedly mounted with an elastic pressure roller (30), and the dial lever (12) can be in contact with the ratchet wheel (13).

9. The detection device for producing plastic woven bags according to any one of claims 1 to 8, characterized in that: The detection assembly comprises a detection piece (29) arranged between the two groups of supporting plates (1) by a three-dimensional moving platform.

10. The detection device for the production of plastic woven bags according to claim 2, characterized in that: The separation holes on the separation plate (4) are each provided with two groups of upper and lower separation holes, and a transition groove is arranged between the two groups of separation holes.

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