An intelligent automatic removal conveyor line for woven bag waste and defective products

Abstract

The present invention relates to the technical field of woven bag detection, and specifically to an intelligent automatic rejection conveyor line for waste and defective woven bags, comprising a first conveyor line for conveying woven bags in a transverse direction; a flaring mechanism, which is arranged at the end of the first conveyor line and is used to open the bag mouth of the woven bag; a visual detection mechanism; the spreading mechanism can move in a transverse direction between a clamping station and a detection station, and comprises a first driving mechanism and two arms extending in a transverse direction; at the clamping station, the arms pass in a transverse direction through the middle of the woven bag expanded by the flaring mechanism; at the detection station, a single-layer bag surface of the woven bag is at least partially horizontally unfolded to form a detection area between a shooting device and a light source; a sorting mechanism, which is used to reject unqualified woven bags removed from the arms according to the detection results of the visual detection mechanism; during detection, this scheme only detects the single-layer bag surface, thereby reducing detection errors.

Description

Technical Field

[0001] The invention relates to the technical field of woven bag detection, and in particular to an intelligent automatic rejection conveyor line for waste and defective woven bags. Background Art

[0002] As a commonly used storage item, woven bags are widely used in various fields. Woven bags are generally made by a weaving machine that weaves wire in a warp and weft interlaced manner. The specific production method of some of the woven bags is as follows: first, a bag body that is in a long cylindrical shape when unfolded is woven by a weaving machine, and then the bag body is equidistantly cut by a cutting machine along the length direction to obtain a number of monomer bag bodies that are in a cylindrical shape when unfolded, and then one end of the monomer bag body is sealed (for example, by hot pressing or sewing) to form the bag bottom, and then a woven bag is obtained.

[0003] Before the end of the single bag is sealed, it is generally necessary to perform a light transmission test on the bag to determine whether the gap formed by the interlaced weaving of the braided wires on the bag meets the requirements. If it meets the requirements, it is a good product and can continue the subsequent processing technology. If it does not meet the requirements, it is a waste product and needs to be discarded. The light transmission test of the bag is generally performed by visual detection, that is, the bag is illuminated by light, and then an industrial camera is used to shoot the area of ​​the bag illuminated by the light to obtain a visual detection image, and then the processor calculates and analyzes the detection image to determine whether it meets the requirements. For this visual detection method, reference can be made to the woven bag transmittance detection device disclosed in announcement number CN220709032U.

[0004] The existing temperature-transmitting light detection device still has defects in actual use. First, when clamping the cloth, the bag body is clamped flat without opening the bag body, so that the bag surface of the bag body forms two layers, and when the light shines on the bag surface, it is equivalent to passing through two layers of the bag surface, which will affect the detection result, so it needs to be improved. Summary of the invention

[0005] In order to solve at least one of the technical problems mentioned in the background technology, the purpose of the present invention is to provide an intelligent automatic rejection conveyor line for waste and defective woven bags.

[0006] To achieve the above object, the present invention provides the following technical solutions:

[0007] An intelligent automatic rejection conveyor line for waste and defective woven bags, comprising:

[0008] A first conveying line, for conveying woven bags in a transverse direction;

[0009] The expansion mechanism is arranged at the end of the first conveying line. When the woven bag is conveyed to the position of the expansion mechanism, the expansion mechanism will expand the bag mouth of the woven bag;

[0010] The visual inspection mechanism includes a photographing device and a light source for providing light, wherein the photographing device and the light source are arranged at intervals in the vertical direction;

[0011] The support and expansion mechanism can move in the clamping station and the detection station in the horizontal direction, and includes a first driving mechanism and two arms extending in the horizontal direction, and the two arms can be moved closer to or away from each other in the longitudinal direction under the drive of the first driving mechanism; in the clamping station, the arms pass through the middle of the woven bag expanded by the expanding mechanism in the horizontal direction; in the detection station, the single-layer bag surface of the woven bag is at least partially horizontally expanded to form a detection area between the shooting device and the light source;

[0012] A discharging mechanism is used to remove the woven bag from the support arm after the woven bag inspection is completed;

[0013] The sorting mechanism is used to remove unqualified woven bags removed from the supporting arm according to the detection results of the visual detection mechanism.

[0014] As an optional embodiment of the present invention, the expanding mechanism includes two suction cups arranged vertically opposite to each other, and the side surfaces of the two suction cups on opposite sides constitute a horizontal adsorption surface, and the adsorption surface has negative pressure adsorption holes; among the two suction cups, the adsorption surface of one is not higher than the conveying surface of the first conveying line to serve as a fixed suction cup, and the other is located above the fixed suction cup and can move vertically to constitute a movable suction cup.

[0015] As an optional embodiment of the present invention, the supporting mechanism also includes two slides, which are arranged on the first driving mechanism and driven by the first driving mechanism to move relative to each other in the longitudinal direction; two arms are respectively arranged on the two slides; the arm includes two shafts arranged in sequence along the vertical direction, and the shaft extends laterally and one end away from the first conveying line is arranged on the slide.

[0016] As an optional embodiment of the present invention, the shaft bodies are all mounted on the slide seat so as to be rotatable around their own axes, and at least one of the shaft bodies is actively rotated by a motor to form a driving shaft.

[0017] As an optional embodiment of the present invention, an air duct is opened in the support arm, and the end of the support arm close to the first conveying line constitutes an air outlet end, and the air outlet end includes an air outlet port one end of which is connected to the air duct, and the air outlet port is an annular conical structure which is gradually inclined outward from the inside to the outside, and the end of the air duct away from the air outlet end is used to connect with the air supply equipment.

[0018] As an optional embodiment of the present invention, the air outlet end includes a plug, the air duct is opened at one end close to the first conveying line and is a tapered opening that gradually widens from the inside to the outside along the transverse direction, the plug is conical and can be detachably arranged in the tapered opening, and the outer peripheral wall of the plug is parallel to the peripheral wall of the tapered opening and is spaced apart to form the air outlet.

[0019] As an optional embodiment of the present invention, a wind shield plate that can move vertically between a first position and a second position is provided above the conveying surface of the first conveyor line; in the first position, a gap is formed between the bottom of the wind shield plate and the conveying surface of the first conveyor line for the woven bags to pass through; in the second position, the bottom of the wind shield plate is located on the conveying surface of the first conveyor line.

[0020] As an optional embodiment of the present invention, it also includes a linkage mechanism, which includes an elastic component, a guide rail, and a protrusion; the elastic component is used to provide elastic force to make the windshield enter the first position; the guide rail keeps synchronous movement in the same direction as the supporting mechanism in the lateral direction; the guide rail includes a first guide surface and a second guide surface extending in the lateral direction, the second guide surface is connected to an end of the first guide surface close to the windshield and inclined upward; in the first position, the end of the second guide surface away from the first guide surface is higher than the protrusion, and in the second position, the first guide surface is pressed against the upper part of the protrusion to keep the windshield in the second position.

[0021] As an optional embodiment of the present invention, the unloading mechanism includes a push arm and a first driving member installed on the slide for driving the push head to move laterally. The push arm is located between the two arms, and in the radial direction of the shaft body, the push arm at least partially extends out of the shaft body.

[0022] As an optional embodiment of the present invention, the sorting mechanism includes a second conveyor line, a push plate and a second driving member. The second conveyor line is arranged below the supporting mechanism to receive the woven bags unloaded from the support arm and convey the woven bags horizontally; the push plate is arranged above the conveying surface of the second conveyor line and is driven by the second driving member to move longitudinally to push unqualified woven bags on the conveying surface of the second conveyor line out of the second conveyor line longitudinally.

[0023] Compared with the prior art, the advantages of adopting this solution are:

[0024] Firstly, in the present scheme, the woven bag can be expanded by setting up an expansion mechanism, that is, the bag mouth of the woven bag is stretched open so that the support arm can be inserted into the woven bag, and then the two arms move away from each other in the longitudinal direction, so that the support arm stretches the entire woven bag outward, so that the single-layer bag surface of the woven bag can subsequently enter the inspection station for visual inspection; this is equivalent to the present scheme only inspecting the single-layer bag surface during inspection, thereby reducing the inspection error.

[0025] Moreover, after the inspection is completed, the woven bags that fail the visual inspection can be removed through the sorting mechanism. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 It is a structural schematic diagram of the present invention;

[0027] Figure 2 It is a schematic diagram of the local structure of the present invention;

[0028] Figure 3 It is a schematic diagram of the partial structure of the front side of the second conveyor line of the present invention (with woven bags);

[0029] Figure 4 It is a schematic diagram of the partial structure of the front side of the second conveyor line of the present invention (without woven bags);

[0030] Figure 5 It is a schematic diagram of the partial structure of the back side of the second conveyor line of the present invention;

[0031] Figure 6 It is an enlarged view of the air outlet end of the shaft body of the present invention;

[0032] Figure 7 It is an axial cross-sectional view of the air outlet end of the shaft body of the present invention;

[0033] Figure 8 A partial cross-sectional view of the windshield of the present invention in the second position;

[0034] Fig. 9 It is a partial cross-sectional view of the wind deflector of the present invention in the first position. DETAILED DESCRIPTION

[0035] The technical solutions of the embodiments of the present invention are explained and described below in conjunction with the drawings of the embodiments of the present invention, but the following embodiments are only preferred embodiments of the present invention, not all. Based on the embodiments in the implementation mode, other embodiments obtained by those skilled in the art without creative work are all within the protection scope of the present invention.

[0036] In the following description, terms such as "inside", "outside", "up", "down", "left", "right", etc. that indicate directions or positional relationships are only used to facilitate the description of the embodiments and simplify the description, and do not indicate or imply that the referred device or element must have a specific direction, be constructed and operate in a specific direction. Therefore, they should not be understood as limitations on the present invention.

[0037] Example 1

[0038] See also Figure 1-9As shown, this embodiment provides an intelligent automatic rejection conveyor line for waste woven bags, which mainly includes a first frame 11, a second frame 12, a first conveyor line 1, a flaring mechanism 2, a visual inspection mechanism, a support mechanism 4, a unloading mechanism, a sorting mechanism, etc. The following is a specific description of each component:

[0039] For the convenience of explanation, Figure 1 As shown, in this embodiment, a three-axis coordinate system is used as a reference. The horizontal, longitudinal, and vertical directions mentioned in this embodiment can be understood as the X-axis direction, Y-axis direction, and Z-axis direction of the three-axis coordinate system, respectively, where the XY plane is a horizontal plane; the M part in the figure shows a woven bag.

[0040] In this embodiment, the first conveyor line 1 is used to convey the woven bags in the horizontal direction, wherein the first conveyor line 1 can adopt a conveyor belt; it is worth noting that the woven bags detected in this embodiment are woven bags whose bottom has not yet been formed, and at this time, the woven bags are basically in a sleeve-like structure with openings at both ends when unfolded.

[0041] The expansion mechanism 2 is used to expand the woven bag conveyed by the first conveyor line 1 so that the bag mouth of the woven bag is opened, so that the subsequent expansion mechanism 4 can insert the woven bag through the opened bag mouth. That is, when the woven bag is conveyed to the position of the expansion mechanism 2, the expansion mechanism 2 expands the bag mouth of the woven bag.

[0042] Combination Figure 2 As shown, the expansion mechanism 2 is arranged at the end of the first conveying line 1 (ie, the discharge end of the first conveying line 1).

[0043] The specific structure of the expanding mechanism 2 is as follows: the expanding mechanism 2 includes two suction cups arranged vertically opposite to each other, and the structures of the two suction cups are basically the same; the side surfaces of the two suction cups on opposite sides constitute a horizontal adsorption surface, and the adsorption surface has one or more negative pressure adsorption holes 201, and the negative pressure adsorption holes 201 can adsorb and fix the bag surface of the woven bag under the action of negative pressure.

[0044] The specific structure of the suction cup is as follows: Fig. 9 As shown, the suction cup has a cavity 20 inside, and the negative pressure adsorption holes 201 on the adsorption surface are all connected to the cavity 20; the cavity 20 is connected to a device that provides negative pressure, for example, a vacuum pump, and the vacuum pump sucks air to form a negative pressure in the cavity 20, so that the negative pressure adsorption holes 201 connected to the cavity 20 can adsorb the bag surface of the woven bag.

[0045] Among them, the lower one of the two suction cups is a fixed suction cup 22, which is mainly used to absorb the lower bag surface of the bag opening of the woven bag. It is fixed to one side of the end of the conveyor belt and remains motionless, and the suction surface of the fixed suction cup 22 is not higher than the conveying surface of the first conveyor line 1 (that is, the top surface of the first conveyor line 1) to ensure that the bag opening position of the woven bag output at the end of the first conveyor line 1 can be smoothly transitioned to the suction surface of the fixed suction cup 22. Among them, it is preferred that the conveying surface of the first conveyor line 1 is flush with the suction surface of the fixed suction cup 22.

[0046] The other suction cup serves as an active suction cup 21, which is located directly above the fixed suction cup 22 and can move vertically; the active suction cup 21 is mainly used to adsorb the upper bag surface at the bag opening of the woven bag. During specific use, after the first conveyor line 1 conveys the bag opening of the woven bag to the adsorption surface of the fixed suction cup 22, the first conveyor line 1 stops conveying, and the active suction cup 21 opens and moves vertically downward until it is pressed against the fixed suction cup 22, and then the two suction cups begin to evacuate air to allow the negative pressure adsorption hole 201 to generate negative pressure to adsorb the bag opening of the woven bag, so that the upper bag surface at the bag opening of the woven bag is adsorbed and fixed by the active suction cup 21, and the lower bag surface at the bag opening of the woven bag is adsorbed and fixed by the fixed suction cup 22, and then the active suction cup 21 begins to move vertically upward, so that the upper bag surface at the bag opening of the woven bag is lifted upward, so that the bag opening is stretched open, and the woven bag is roughly in a Figure 8 The state shown is to achieve expansion.

[0047] The specific installation of the movable sucker 21 is as follows: Figure 2 As shown, the first frame 11 straddles the end position of the first conveyor line 1; the first frame 11 is provided with a first cylinder 23 which can be extended and retracted vertically, and the movable suction cup 21 is fixed to the lower end of the output shaft of the first cylinder 23, so that the movable suction cup 21 is driven by the first cylinder 23 to move vertically.

[0048] The visual inspection mechanism is arranged downstream of the first conveyor line 1 and above the second conveyor line 61; it is mainly used to perform visual inspection on the bag surface of the woven bag to detect the light transmittance of the woven bag, and use the light transmittance as an evaluation standard to judge whether the woven bag is qualified or not; the higher the light transmittance, the larger the gap on the bag surface of the woven bag. In this way, as long as the transmittance threshold is set in advance, when the detected light transmittance is greater than or equal to the threshold, the system judges that the woven bag is an unqualified product, that is, a waste product; if the detected light transmittance is less than the threshold; the woven bag is judged to be a qualified product.

[0049] Among them, Figure 3 As shown, the visual inspection mechanism mainly includes a shooting device and a light source for providing lighting. The shooting device and the light source are arranged at intervals in the vertical direction, and the interval between the two is for the upper bag surface of the conveyor belt to penetrate; specifically, in this embodiment, the shooting device is preferably an industrial camera 31, and the light source is a light board 32 that can be powered on to provide lighting.

[0050] The industrial camera 31 is fixed at the top of the second frame 12; the light board 32 is located directly below the industrial camera 31 and extends laterally, the top surface of the light board 32 is the light-emitting surface, and one end of the light board 32 away from the first conveyor line 1 is fixed on the frame, and the other end extends toward the side close to the first conveyor line 1.

[0051] The stretching mechanism 4 is mainly used to stretch the woven bag longitudinally so that the upper bag surface and the lower bag surface of the woven bag are vertically separated, so that the subsequent light board 32 can be inserted between the upper bag surface and the lower bag surface for subsequent detection process.

[0052] The spreading mechanism 4 is driven by the second driving mechanism 42 to move laterally between the clamping station and the detection station. The spreading mechanism 4 includes a first driving mechanism 41 and two arms extending laterally, and the two arms are arranged opposite to each other in the longitudinal direction; the two arms can move closer to or away from each other in the longitudinal direction under the drive of the first driving mechanism 41, so that the woven bag can be spread out through the relative movement of the two arms in the longitudinal direction.

[0053] Among them, in the clamping station, the support arm passes through the middle of the woven bag expanded by the expanding mechanism 2 in the horizontal direction. It can also be understood that in the clamping station, both support arms penetrate into the woven bag in the horizontal direction.

[0054] At the inspection station, Figure 3 In the state shown, the single-layer bag surface of the woven bag is at least partially horizontally unfolded between the shooting device and the light source to form a detection area. For example, in this embodiment, after the support arm opens the woven bag, the upper bag surface of the woven bag is horizontally unfolded directly above the light board 32, and the area where the woven bag is unfolded directly above the light board 32 constitutes the detection area. In this way, the light board 32 illuminates the upper bag surface upward, and the industrial camera 31 takes a picture of the detection area of ​​the woven bag. The subsequently captured picture is calculated and analyzed by the processor to obtain the transmittance of the detection area and form a detection result. During the detection process, the industrial camera 31 and the light board 32 will only detect the single-layer bag surface (i.e., the upper bag surface), thereby reducing the detection error.

[0055] It is worth noting that, in this embodiment, the two arms are respectively located on both sides of the lamp board 32, and the lamp board 32 can pass between the two arms.

[0056] by Figure 1 For example, when the woven bag is transported to the right by the first conveyor line 1 to the position of the expansion mechanism 2, the first conveyor line 1 stops conveying, and the expansion mechanism 2 opens the mouth of the woven bag. Figure 8The state shown; then the stretching mechanism 4 starts to move to the left, so that the two arms are continuously inserted into the woven bag to the left through the bag opening of the woven bag, and finally one end of the arm extends from the left end of the woven bag to reach the clamping station, and then the two suction cups are ventilated to break the vacuum to release the negative pressure adsorption state. At this time, the two suction cups no longer adsorb the woven bag. In this process, the two arms begin to move away from each other in the longitudinal direction. In the process of moving away, the woven bag is continuously stretched open by the two arms. After the woven bag is fully stretched open, the stretching mechanism 4 as a whole begins to move to the right with the stretched woven bag until it enters the detection station, such as Figure 3 As shown, at this time, the upper bag surface of the woven bag is just between the light board 32 and the industrial camera 31, and then the light board 32 and the industrial camera 31 can be turned on to perform visual inspection and obtain the inspection results.

[0057] The unloading mechanism is used to unload the woven bag from the supporting arm after the woven bag inspection is completed.

[0058] The sorting mechanism is used to remove unqualified woven bags removed from the support arm according to the detection results of the visual detection mechanism, so as to achieve the purpose of removing unqualified products.

[0059] In order to realize the longitudinal relative movement of the two arms, Figure 3 As shown, the supporting mechanism 4 also includes two slides 43 arranged side by side in the longitudinal direction, and the two slides 43 are arranged on the first driving mechanism 41 and driven by the first driving mechanism 41 to move relative to each other in the longitudinal direction; the two arms are respectively arranged on the two slides 43; it is worth noting that in order to ensure that the slide 43 can pass through the light board 32 horizontally, the longitudinal spacing between the two slides 43 in this embodiment is greater than the longitudinal width of the light board 32.

[0060] like Figure 2 As shown, each support arm includes two shaft bodies 44 which are arranged in sequence and spaced apart in the vertical direction. The two support arms have four shaft bodies 44 in total, and the four shaft bodies 44 are located at the four vertex positions of a rectangle.

[0061] In addition, each shaft 44 extends in the transverse direction and has one end away from the first conveying line 1 disposed on the slide 43 .

[0062] As an optional implementation, in this embodiment, the shaft body 44 is rotatably mounted on the slide 43 around its own axis, that is, the end of the shaft body 44 away from the first conveyor line 1 is rotatably connected to the slide 43. Figure 5 As shown, at least one shaft 44 is driven by a motor 45 to actively rotate to form a driving shaft; for example, this embodiment shows a situation where a shaft 44 is used as a driving shaft, and the motor 45 is fixed on a slide 43 on which the driving shaft is installed.

[0063] With such a configuration, during the inspection, the motor 45 can drive the driving shaft to rotate, and the woven bag is tensioned on each shaft 44. As the driving shaft rotates, the friction between the driving shaft and the woven bag can drive the woven bag to rotate circumferentially. As the woven bag rotates circumferentially, the detection area of ​​the woven bag can be changed, so that different areas of the woven bag can be inspected. For example, a woven bag can be inspected four times, and the four upper, lower, left and right surfaces of the woven bag after being unfolded in a rectangular shape can be inspected respectively. For example, after completing the inspection of one surface, the woven bag is rotated so that the next inspection surface is rotated to the inspection area. If the inspection result of any area is unqualified, the woven bag is deemed to be a waste product.

[0064] In order to improve the transmission effect of the driving shaft on the woven bag, the outer wall of the driving shaft is preferably made of rubber material to increase friction.

[0065] Of course, in other optional embodiments, each shaft body 44 can also be that the end of the shaft body 44 away from the first conveyor line 1 is directly fixed on the slide 43. In this case, each shaft body 44 is equivalent to being non-rotatable. This method is mainly used for the situation where only a detection area of ​​the woven bag is detected.

[0066] In this embodiment, the first driving mechanism 41 and the second driving mechanism 42 can both adopt linear modules, preferably lead screw linear modules; the lead screw linear module mainly includes a linear slide rail, a slider that can slide on the slide rail, and a screw driven to rotate by a lead screw motor and threadedly connected to the slider. The lead screw is driven to rotate by the lead screw motor, which can drive the slider to slide linearly along the slide rail, thereby achieving the purpose of linear drive. There are many descriptions of this lead screw linear module in the prior art, and no excessive elaboration will be made here.

[0067] Specifically in this embodiment:

[0068] like Figure 5 As shown, the lead screw linear module constituting the first driving mechanism 41 is preferably a bidirectional lead screw linear module, which includes two sliders, and its lead screw has two threaded sections with opposite thread directions, and the two sliders are respectively threadedly connected to the two threaded sections, and its slide rails (recorded as the first slide rail 411 for distinction) extend in the longitudinal direction; the two slide seats 43 are respectively fixed on the two sliders; when the lead screw rotates, it can drive the two sliders to move away from or towards each other synchronously in the longitudinal direction, and then drive the two slide seats 43 to move away from or towards each other synchronously in the longitudinal direction, and finally realize the two arms moving away from or towards each other in the longitudinal direction.

[0069] The lead screw linear modules constituting the second driving mechanism 42 preferably adopt two groups, which are arranged side by side in the longitudinal direction, and their slide rails (recorded as second slide rails 421 for distinction) extend in the transverse direction, and the first slide rail 411 of the first driving mechanism 41 is fixed on the slider on the second slide rail 421; when the slider on the first slide rail 411 is driven to move in the transverse direction, it can drive the second slide rail 421 to move in the transverse direction, thereby making the entire supporting mechanism 4 move in the transverse direction as a whole.

[0070] In practical applications, when the shaft body 44 constituting the support arm passes through the expanded woven bag, since only the bag opening is expanded, the side of the woven bag away from the bag opening is in a collapsed state, which basically presents the following Figure 8 In the state shown, when the shaft 44 is inserted into the woven bag to the left along the horizontal direction, the end of the shaft 44 (the end away from the slide seat 43) will scrape the inner bag surface of the woven bag, which can easily cause the woven bag to be damaged by hooking or the like.

[0071] Based on this, Figure 6 and Figure 7 As shown, in this embodiment, an air channel 443 is opened in the support arm, and the end of the support arm close to the first conveying line 1 constitutes an air outlet end, and the air outlet end includes an air outlet port 445 which is connected to the air channel 443 at one end, and the air outlet port 445 is an annular conical structure which is gradually inclined outward from the inside to the outside, and the end of the air channel 443 away from the air outlet end is used to be connected to an air supply device (such as an air pump).

[0072] In this way, when the support arm reaches the position of the expansion mechanism 2, the air pump is turned on to blow air into the air channel 443, and then the airflow in the air channel 443 will flow forward along the rise and finally be discharged from the air outlet 445. Since the air outlet 445 is an annular conical structure, the airflow ejected from the air outlet 445 is inclined outward. Taking the airflow at the top position of the air outlet 445 as an example, the airflow will flow obliquely upward, thereby generating an oblique upward airflow force F0. The airflow force F0 will be decomposed into a lateral component force F2 pointing horizontally to the left, and a vertical component force F1 pointing vertically upward. Under the push of the vertical component force F1, the woven bag surface will be pushed outward. The expansion mechanism 2 expands away from the end of the support arm to reduce the probability of scratching between the end of the support arm and the surface of the woven bag during the forward movement of the support arm; and the lateral component force F2 will push the woven bag to have a tendency to be pulled to the left. Since the right end of the woven bag (i.e., the bag mouth) is adsorbed by the expansion mechanism 2, it is equivalent to being in a static state. As the support arm is continuously inserted into the woven bag to the left, the lateral component force F2 will push the tail of the woven bag to be pulled to the left, so that the woven bag as a whole has a tendency to be stretched horizontally, so that the subsequent woven bag can be stretched out on the support arm more easily, which is beneficial to reduce the occurrence of wrinkles when the woven bag is unfolded.

[0073] After the support arm reaches the clamping position, the air outlet 445 stops blowing.

[0074] In this embodiment, the structure of the air passage 443 is specifically described by taking the case where the shaft 44 is rotatably arranged on the slide seat 43 as an example:

[0075] In this embodiment, Figure 7 As shown, the shaft body 44 mainly includes a central axis 441 and a sleeve 442. The end of the central axis 441 away from the first conveyor line 1 is fixed on the slide 43 and extends to the back side of the slide 43, and the end close to the first conveyor line 1 extends out of the sleeve 442 for a distance or the two ends are aligned; the air channel 443 is opened in the central axis 441 along the axis of the central axis 441 and passes through both ends of the central axis 441. The end of the air channel 443 close to the first conveyor line 1 forms an air outlet end, and the end away from the first conveyor line 1 serves as an air inlet end and is connected to the air supply equipment.

[0076] The sleeve 442 is rotatably sleeved on the outer wall of the central shaft 441 to ensure that the woven bag can be driven to rotate circumferentially; wherein, a gear transmission is adopted between the sleeve 442 of the shaft body 44 as the driving shaft and the motor 45, that is, a driven gear 452 is fixedly sleeved on the outer peripheral wall of the sleeve 442, and a driving gear 451 meshing with the driven gear 452 is fixed on the main shaft of the motor 45, so that the motor 45 can drive the sleeve 442 to rotate, thereby driving the woven bag to rotate circumferentially.

[0077] The specific structure of the outlet end is: combined with Figure 7 and Figure 6 As shown, the air outlet end includes a plug 444, the air duct 443 is opened at one end close to the first conveying line 1 and is a tapered opening that gradually widens from the inside to the outside along the transverse direction, the plug 444 is tapered and detachably arranged in the tapered opening, and the outer peripheral wall of the plug 444 is parallel to the peripheral wall of the tapered opening and is spaced apart to enclose and form the air outlet 445.

[0078] The specific connection structure of the plug 444 is as follows: Figure 7 As shown, an air balancing plate 446 (i.e., a plate body with through holes a evenly formed on the plate surface) is fixedly provided in the air duct 443, and a stud section is formed at the inner end of the plug 444, which is threadedly connected to the air balancing plate 446 through the stud section.

[0079] The specific structure of the unloading mechanism is as follows: Figure 4As shown, the unloading mechanism is preferably provided with two groups, which are respectively arranged on the two slides 43; the unloading mechanism includes a push arm 51 and a first driving member 52 installed on the slide 43 for driving the push head to move horizontally, and the first driving member 52 can be a linear telescopic module such as an electric cylinder and a cylinder, and the first driving member 52 is fixed on the slide 43; the push arm 51 is located between the two arms, and in the radial direction of the shaft body 44, the push arm 51 at least partially extends out of the shaft body 44. For example, in this embodiment, as Figure 5 As shown, the push arm 51 is basically in a T-shaped structure, with upper and lower shafts 44 extending vertically from its upper and lower ends respectively, and the other end extending longitudinally from the shaft 44. In this way, when unloading after the detection is completed, the two slides 43 first move closer to each other to loosen the tension of the fabric by the shaft 44, and then the first drive member 52 drives the push arm 51 to move laterally away from the slide 43. During this process, the push arm 51 will push the woven bag from the shaft 44 to the side away from the slide 43, and finally fall from the shaft 44 to realize unloading. After unloading is completed, the push arm 51 can be reset again.

[0080] like Figure 3 and Figure 4 As shown, the sorting mechanism includes a second conveying line 61, a push plate 62 and a second driving member 63. The second conveying line 61 is arranged below the supporting mechanism 4 to receive the woven bags unloaded from the supporting arm and transport the woven bags horizontally; wherein the second conveying line 61 can be a conveyor belt.

[0081] The push plate 62 is arranged above the conveying surface of the second conveyor line 61 and is driven by the second driving member 63 to move longitudinally so as to push unqualified woven bags on the conveying surface of the second conveyor line 61 out of the second conveyor line 61 longitudinally, wherein a discharge port 611 is provided on the side of the second conveyor line 61 opposite to the push plate 62; the second driving member 63 can be a linear telescopic module such as a cylinder and an electric cylinder.

[0082] After the inspection is completed, the unloading mechanism pushes down the inspected woven bag, and the woven bag will fall onto the second conveyor line 61. If the inspection result of the woven bag is a waste product, when it passes the position of the push plate 62, the second driving member 63 will push the push plate 62 to move toward the side of the discharge port 611, so that the push plate 62 will push the woven bag of the second conveyor line 61 off the discharge port. If the inspection result of the woven bag is a qualified product, the push plate 62 will keep its initial position and continue to be transported forward by the second conveyor line 61, and finally output from the end of the second conveyor line 61; in this way, the sorting of waste products and qualified products is realized to eliminate waste products.

[0083] Example 2

[0084] In Example 1, although the structures of the air passage 443 and the air outlet 445 are provided in the shaft body 44, it helps to reduce the scratch between the end of the shaft body 44 and the inner wall of the woven bag, it also brings certain disadvantages, which are specifically reflected in that the air flow ejected from the air outlet 445 will flow along the starting end side of the first horizontal conveyor line 1, which will interfere with the subsequent woven bags on the first conveyor line 1, and it is easy to blow the subsequent woven bags out of position, thereby affecting the subsequent expansion operation of these woven bags; therefore, based on this, this embodiment is further improved on the basis of Example 1:

[0085] In this embodiment, Figure 2 As shown, a windshield plate 7 which can move vertically between a first position and a second position is provided above the conveying surface of the first conveying line 1 , and the windshield plate 7 preferably has a plate surface vertically perpendicular to the conveying surface of the first conveying line 1 .

[0086] In the first position, Figure 2 and Fig. 9 In the state shown, a gap is formed between the bottom of the wind shield 7 and the conveying surface of the first conveying line 1 to allow the woven bags to pass through.

[0087] In the second position, Figure 8 In the state shown, the bottom of the windshield 7 is located on the conveying surface of the first conveyor line 1. At this time, the windshield 7 is equivalent to forming a blocking effect between the woven bag in the expanded position and the previous woven bag of the woven bag, intercepting the airflow blown by the shaft 44 to prevent the airflow from disturbing the subsequent woven bags. The side panel of the first conveyor line 1 is provided with an avoidance opening 10 for the vertical movement of the windshield 7.

[0088] In order to enable the windshield 7 to automatically switch positions according to the action of the supporting mechanism 4, in this embodiment, this embodiment also includes a linkage mechanism, which includes an elastic component, a guide rail 82, and a protrusion 84; the elastic component is used to provide elastic force to enable the windshield 7 to enter the first position.

[0089] Among them, Figure 2 As shown, the elastic component includes two groups, which preferably include a spring 812, a mounting plate 814 arranged on the top of the first frame 11, and a guide rod 811 vertically movably penetrated on the mounting plate. One end of the guide rod 811 is fixed to the windshield 7, and the other end is fixed with an end 813. The spring 812 is sleeved on the guide rod 811 and is located between the end 813 and the mounting plate 814. The two ends are respectively against the end 813 and the mounting plate 814, so that the spring 812 pushes the end 813 to move upward, thereby driving the guide rod 811 and the windshield 7 to move upward to enter the first position. In addition, in order to keep the windshield 7 in the first position; Figure 8As shown, a limit block 8111 is fixed on the rod wall on the lower side of the mounting plate on the guide rod 811. When the wind shield 7 is in the first position, the limit block 8111 abuts against the bottom wall of the mounting plate 814 to limit the wind shield 7 from continuing to move upward. In this way, under the action of the limit block 8111 and the spring 812, the wind shield 7 can be maintained in the first position.

[0090] The guide rail 82 moves synchronously with the support mechanism 4 in the lateral direction. Figure 2 As shown, a transversely extending connecting rod 834 is fixed on the first slide rail 411, and one end of the connecting rod 834 away from the first slide rail 411 is fixed to the end of the guide rail 82 away from the windshield 7. In this way, when the first slide rail 411 and the shaft body 44 move laterally to the left, the connecting rod 834 and the guide rail 82 will move laterally to the left together.

[0091] The bottom wall of the guide rail 82 is formed with a first guide surface 821 and a second guide surface 822 in sequence along the horizontal direction. The first guide surface 821 extends horizontally, and the second guide surface 822 is connected to one end of the first guide surface 821 close to the wind shield 7 and tilted upward; a sliding sleeve 833 is fixed on the outer wall of the first conveyor line 1, and the part of the guide rail 82 that constitutes the first guide surface 821 is laterally slidably connected to the sliding sleeve 833.

[0092] In the first position, Figure 2 In the state shown, one end of the second guide surface 822 away from the first guide surface 821 is higher than the protrusion 84 to ensure that when the guide rail 82 moves to the left, the second guide surface 822 can enter the upper side of the protrusion 84 to press down the protrusion 84 and drive the windshield plate 7 to move downward.

[0093] In the second position, Figure 8 As shown, the first guide surface 821 presses against the upper portion of the protrusion 84 to keep the wind shield 7 at the second position.

[0094] When the support mechanism 4 is in the detection position, Figure 1 As shown, at this time, the second guide surface 822 is at a position away from the convex portion 84. As the support mechanism 4 moves laterally to the left (that is, moves to the side where the first conveyor line 1 is located), the guide rail 82 as a whole will also move laterally to the left. When the air outlet end of the shaft body 44 reaches the front of the expansion mechanism 2, the second guide surface 822 begins to contact the convex portion 84. As the shaft body 44 continues to move forward, the second guide surface 822 begins to continuously press the convex portion 84 to drive the wind shield 7 to move downward. Finally, the first guide surface 821 will press on the convex portion 84 and continue to move forward in this state. At this time, the wind shield 7 is in the second position (as shown in FIG. Figure 8 As shown), thereafter, the shaft body 44 continues to move forward, and the wind shield 7 remains in the second position to block the airflow ejected from the shaft body 44. The convex portion 84 is preferably a roller.

[0095] When the arm starts to move to the right after completing the tensioning of the woven bag at the clamping station (i.e., moves closer to the detection station), the guide rail 82 moves to the right synchronously. As the second guide surface 822 gradually moves to the right away from the protrusion 84, the elastic force of the elastic component will push the wind shield 7 to continuously reset to the first position and finally remain in the first position to ensure that the subsequent woven bags pass from under the wind shield 7 for the subsequent detection process.

[0096] It can be seen that in this embodiment, the design of the wind shield 7 and the linkage mechanism enables the wind shield 7 to automatically switch its position according to the lateral movement of the supporting mechanism 4 without the need for additional control.

[0097] It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above and that the present invention can be implemented in other specific forms without departing from the spirit or essential features of the present invention. Therefore, the embodiments should be considered exemplary and non-restrictive in all respects, and the scope of the present invention is defined by the appended claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims be included in the present invention.

Claims

1. An intelligent automatic rejection conveyor line for waste woven bags, characterized in that: include: A first conveying line, for conveying woven bags in a transverse direction; The expansion mechanism is arranged at the end of the first conveying line. When the woven bag is conveyed to the position of the expansion mechanism, the expansion mechanism will expand the bag mouth of the woven bag; The visual inspection mechanism includes a photographing device and a light source for providing light, wherein the photographing device and the light source are arranged at intervals in the vertical direction; The support and expansion mechanism can move in the clamping station and the detection station in the horizontal direction, and includes a first driving mechanism and two arms extending in the horizontal direction, and the two arms can be moved closer to or away from each other in the longitudinal direction under the drive of the first driving mechanism; in the clamping station, the arms pass through the middle of the woven bag expanded by the expanding mechanism in the horizontal direction; in the detection station, the single-layer bag surface of the woven bag is at least partially horizontally expanded to form a detection area between the shooting device and the light source; A discharging mechanism is used to remove the woven bag from the support arm after the woven bag inspection is completed; A sorting mechanism is used to remove unqualified woven bags removed from the supporting arm according to the inspection results of the visual inspection mechanism; The support mechanism further includes two slides, which are arranged on the first driving mechanism and driven by the first driving mechanism to move relatively in the longitudinal direction; two arms are respectively arranged on the two slides; the arms include two shafts arranged in sequence in the vertical direction, and one end of the shaft extending in the transverse direction and away from the first conveying line is arranged on the slide; An air passage is provided in the support arm, and one end of the support arm close to the first conveying line constitutes an air outlet end, the air outlet end includes an air outlet port connected to the air passage at one end, the air outlet port is an annular conical structure gradually inclined outward from the inside to the outside, and the end of the air passage away from the air outlet end is used to communicate with the air supply device; A windshield plate capable of moving vertically between a first position and a second position is provided above the conveying surface of the first conveying line; in the first position, a gap is formed between the bottom of the windshield plate and the conveying surface of the first conveying line to allow the woven bags to pass through; in the second position, the bottom of the windshield plate is located on the conveying surface of the first conveying line; It also includes a linkage mechanism, which includes an elastic component, a guide rail, and a protrusion; the elastic component is used to provide elastic force to make the windshield enter the first position; the guide rail keeps synchronous movement in the same direction as the supporting mechanism in the lateral direction; the guide rail includes a first guide surface and a second guide surface extending in the lateral direction, the second guide surface is connected to an end of the first guide surface close to the windshield and inclined upward; in the first position, the end of the second guide surface away from the first guide surface is higher than the protrusion, and in the second position, the first guide surface is pressed against the upper part of the protrusion to keep the windshield in the second position.

2. According to claim 1, the intelligent automatic rejection conveyor line for waste woven bags is characterized in that: The expanding mechanism includes two suction cups arranged vertically opposite to each other, and the side surfaces of the two suction cups on opposite sides constitute a horizontal adsorption surface, and the adsorption surface is provided with negative pressure adsorption holes; among the two suction cups, the adsorption surface of one is not higher than the conveying surface of the first conveying line to serve as a fixed suction cup, and the other is located above the fixed suction cup and can move vertically to form a movable suction cup.

3. The intelligent automatic rejection conveyor line for waste and defective woven bags according to claim 1 is characterized in that: The shaft bodies are all rotatably mounted on the slide seat around their own axes, and at least one of the shaft bodies is driven by a motor to actively rotate to form a driving shaft.

4. The intelligent automatic rejection conveyor line for waste woven bags according to claim 1 is characterized in that: The air outlet end includes a plug, and the air duct is opened at one end close to the first conveying line and is a tapered opening that gradually widens from the inside to the outside along the transverse direction. The plug is conical and can be detachably arranged in the tapered opening. The outer peripheral wall of the plug is parallel to the peripheral wall of the tapered opening and is spaced apart to form the air outlet.

5. The intelligent automatic rejection conveyor line for waste woven bags according to claim 1 is characterized in that: The unloading mechanism comprises a push arm and a first driving member installed on a slide seat for driving a push head to move laterally. The push arm is located between two arms, and in the radial direction of the shaft body, the push arm at least partially extends out of the shaft body.

6. The intelligent automatic rejection conveyor line for waste woven bags according to claim 1 is characterized in that: The sorting mechanism includes a second conveyor line, a push plate and a second driving member. The second conveyor line is arranged below the supporting mechanism to receive the woven bags unloaded from the support arm and convey the woven bags horizontally. The push plate is arranged above the conveying surface of the second conveyor line and is driven by the second driving member to move longitudinally to push unqualified woven bags on the conveying surface of the second conveyor line out of the second conveyor line longitudinally.

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