Binding machine and binding structure thereof

Abstract

The invention relates to the technical field of strapping machines, in particular to a strapping machine and a strapping structure thereof.The strapping machine comprises a rack and a conveying belt, the conveying belt and the strapping structure are both located on the rack, the strapping structure comprises a belt conveying box and a strapping ring, the strapping ring is located at the upper end of the belt conveying box, an adjusting assembly is arranged on the strapping ring, and the adjusting assembly can adjust the size of the strapping ring; compared with the prior art that the size of the binding ring cannot be changed, the size of the binding ring is close to the size of the material, the binding ring can bind the binding band with the proper length to the material, and therefore the situation that the tightening device tightens the too long binding band is avoided, the working time of the collecting device is shortened, and the overall binding efficiency can be improved; and the adjusting assembly can control the distance between the materials and the inner ring of the bundling ring to be always kept within a proper range.

Description

Technical Field

[0001] The present invention relates to the technical field of strapping machines, in particular to a strapping machine and a strapping structure thereof. Background Art

[0002] A strapping machine is a device used to bundle or pack items. It secures items together using strapping tape, ropes or other materials for transport, storage or protection of goods. Strapping machines are widely used in logistics, warehousing, industrial production and agriculture.

[0003] For example, Chinese patent CN102101539B discloses a fully automatic strapping machine, which is provided with a belt storage paddle, which organically connects the strapping machine core, the belt storage box and the belt reel, so that the belt can be threaded outside the frame on one side of the belt reel during automatic assembly line packaging, and the belt can be automatically delivered to the position with one click.

[0004] However, the above solution cannot adjust the length of the strapping belt according to the size of the strapping material, resulting in that the feeding stroke cannot be adjusted when strapping smaller materials. When strapping smaller materials, the device also needs to take back the excess material, resulting in energy waste. In addition, the strapping belt needs to have a certain hardness and is not suitable for softer strapping belts. Summary of the invention

[0005] Based on this, it is necessary to provide a strapping machine and its strapping structure to address the problem that the current strapping machine cannot adjust the length of the strapping belt according to the size of the strapping material, resulting in energy waste during recycling.

[0006] The above purpose is achieved through the following technical solutions: A bundling structure, comprising: A conveyor box, one end of which is provided with a conveyor assembly, the conveyor assembly can convey the strapping tape, and materials pass through the upper end of the conveyor box; A strapping ring, the strapping ring is located on the conveyor box, a plurality of adsorption holes are provided on the outer circumference of the strapping ring, the plurality of adsorption holes can adsorb the strapping belt, and the strapping ring rotates around its own axis to drive the strapping belt to be wound around the outer circumference of the strapping ring; An adjusting component, wherein the adjusting component can adjust the diameter of the strapping ring, and the diameter of the strapping ring is positively correlated with the size of the material; A cutting assembly is used to cut the strap.

[0007] Furthermore, the bundling ring is hollow inside and includes a plurality of adsorption tubes and connecting tubes, the connecting tubes and the adsorption tubes are arranged alternately, the two ends of the connecting tubes are slidingly sealed to connect the adsorption tubes, the regulating assembly includes a first valve and a second valve, the first valve is located between adjacent adsorption tubes and connecting tubes, and the second valve is located on the side wall of the connecting tube; When the diameter of the bundling ring decreases, the interior of the adsorption tube is in a negative pressure state, the first valve is opened, the second valve is closed, the interior of the connecting tube is in a negative pressure state and the pressure gradually approaches a vacuum state, and the adsorption tubes at both ends of the connecting tube are close to each other; When the diameter of the bundling ring increases, the interior of the adsorption tube is in a negative pressure state, the first valve is closed, the second valve is opened, the interior of the connecting tube is in a negative pressure state and the pressure gradually approaches the atmospheric pressure, and the adsorption tubes at both ends of the connecting tube are away from each other.

[0008] Furthermore, the cutting assembly includes an abutment plate, a first abutment head, a second abutment head and a cutting head. A support frame is provided in the conveyor box. The abutment plate is fixedly connected to the support frame and is located below the strapping ring. The first abutment head, the second abutment head and the cutting head are all vertically arranged and can be retracted. The fixed ends of the three are fixed inside the conveyor box. When the strap passes around the outer circumference of the strapping ring, the first abutment head abuts the strap to the abutment plate, and the second abutment head abuts the overlapping part of the strap. The cutting head is located between the first abutment head and the second abutment head to cut the other end of the strap.

[0009] Furthermore, a feed trough and a discharge trough are provided at the lower end of the support frame, and the feed trough and the discharge trough are distributed up and down and have overlapping parts. The support frame can move along the axial direction of the strapping ring to let the straps in the discharge trough and the feed trough leak out. When the straps leak out, they are located below the abutment plate, and the first abutment joint is bonded to one end of the strap before the strap is separated from the discharge trough.

[0010] Furthermore, the ends of the feed trough and the discharge trough that are away from each other both have an arc.

[0011] Furthermore, a telescopic member is provided in the conveyor box, the telescopic member is connected to the support frame, and the telescopic member can be axially telescoped along the binding ring to tighten the binding belt.

[0012] Furthermore, a driving assembly is provided on the support frame, and the driving assembly drives the bundle to rotate around its own axis.

[0013] Furthermore, the driving assembly includes a driving motor and a driving wheel, the driving motor is fixed on the supporting frame, the driving wheel is rotatably arranged on the supporting frame, the outer periphery of the driving wheel is elastic and is in rolling contact with the inner periphery of the strapping ring, and the driving motor is drivingly connected to the driving wheel.

[0014] Furthermore, the support frame is provided with two driven wheels, and the two driven wheels are arranged in the same row as the driving wheel.

[0015] The present invention further provides a strapping machine, which comprises a frame and a conveyor belt, wherein the conveyor belt and the strapping structure are connected to the frame.

[0016] The beneficial effects of the present invention are: The present invention provides an adjustment component on the strapping ring, and the adjustment component can adjust the size of the strapping ring. Compared with the prior art that cannot change the size of the strapping ring, the size of the strapping ring is close to the size of the material. The strapping ring can strap the material with a strap of appropriate length, thereby avoiding the tightening device from tightening the strap that is too long, reducing the working time of the collecting device, thereby improving the overall strapping efficiency, and the adjustment component can control the distance between the material and the inner ring of the strapping ring to always be maintained within a more appropriate range. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 A schematic diagram of a bundling structure provided by an embodiment of the present invention; Figure 2 for Figure 1 A left side view of a bundling structure provided in an embodiment; Figure 3 for Figure 2 A cross-sectional view along AA of a bundling structure provided in an embodiment of the present invention when a binding strap is wound around the structure; Figure 4 for Figure 3 A partial enlarged view of a portion X of a bundling structure provided in an embodiment; Figure 5 for Figure 2 A cross-sectional view along AA of the second embodiment of the bundling structure provided in the embodiment when the binding strap is ready to be cut; Figure 6 for Figure 5 A partial enlarged view of a portion Y of a bundling structure provided in an embodiment; Figure 7 for Figure 2 A cross-sectional view along AA of the binding structure provided in one embodiment after the cutting of the binding strap is completed; Figure 8 for Figure 7 A partial enlarged view of the Z portion of the bundling structure provided in an embodiment; Fig. 9A schematic diagram of the internal structure of a belt conveyor box of a bundling structure provided by an embodiment of the present invention; Fig.10 for Fig. 9 A right side view of the internal structure of the conveyor box of the bundling structure provided by an embodiment; Fig.11 for Fig. 9 A partial enlarged view of the internal structure I of the conveyor box of the bundling structure provided in one embodiment; Fig.12 This is a schematic structural diagram of a strapping machine provided in another embodiment of the present invention.

[0018] in: 100, conveyor box; 110, unwinding roller; 120, conveying roller; 130, supporting frame; 140, guide groove; 150, feeding trough; 160, discharging trough; 170, discharging port; 180, frame; 190, conveyor belt; 200, tying ring; 210, adsorption tube; 211, adsorption hole; 212, first valve; 213, air extraction hole; 220, connecting tube; 221, elastic film; 222, second valve; 300, abutment plate; 310, slide rail plate; 320, first abutment head; 330, second abutment head; 340, cutting head; 341, blade; 342, contact head; 400, driving motor; 410, driving wheel; 420, driven wheel; 430, arc track; 500. Straps. DETAILED DESCRIPTION

[0019] In order to make the purpose, technical solution and advantages of the present invention more clearly understood, the present invention is further described in detail below through embodiments and in conjunction with the accompanying drawings. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not used to limit the present invention.

[0020] The serial numbers assigned to the components herein, such as "first", "second", etc., are only used to distinguish the objects described and do not have any order or technical meaning. The "connection" and "coupling" mentioned in the present invention, unless otherwise specified, include direct and indirect connections (couplings). In the description of the present invention, it should be understood that the terms "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", etc., indicating the orientation or position relationship are based on the orientation or position relationship shown in the accompanying drawings, which is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation to the present invention.

[0021] In the present invention, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, a first feature being "above", "above" or "above" a second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. A first feature being "below", "below" or "below" a second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0022] Refer to the following Figure 1-Figure 12 A bundling structure provided by the present invention is described below.

[0023] A bundling structure, suitable for bundling materials, includes a conveyor box 100, one end of which is provided with a conveyor assembly, the conveyor assembly is used to convey a strap 500 into the conveyor box 100, the conveyor box 100 is hollow inside, a strapping ring 200 is provided at the upper end of the conveyor box 100, materials will pass through the upper end of the conveyor box 100, that is, the materials will be located at the center of the strapping ring 200, and a part of the strapping ring 200 is located inside the conveyor box 100. The bundling technology in the prior art is to input the strapping 500 into the inner periphery of the strapping ring 200, so that the strapping 500 is completely located at the inner periphery of the strapping ring 200, and then a tightening device is used to tighten the strapping 500 on the inner periphery of the strapping ring 200 on the material, so as to bundle the materials together. The structural setting can also adapt to materials of different sizes, but a tightening device is required to tighten the strap 500. Of course, materials larger than the strapping ring 200 cannot be bundled, and only materials smaller than the strapping ring 200 can be bundled. When bundling materials slightly smaller than the strapping ring 200, the length of the strap 500 tightened by the collecting device is just right, but when bundling materials smaller than the strapping ring 200, the size of the strap 500 tightened by the tightening device will increase, which requires the tightening device to tighten a longer strap 500 to bundle the smaller material. At this time, the strap 500 tightened by the tightening device will be wasted, and the working time of the tightening device will be increased, reducing the bundling efficiency. At the same time, the energy required by the collecting device is increased, thereby wasting energy.

[0024] The strapping ring 200 of the present invention is provided with an adjustment component, which can adjust the size of the strapping ring 200, thereby improving the above-mentioned problem. The strapping ring 200 of the present invention is provided with a plurality of adsorption holes 211 on its outer periphery, and the adsorption holes 211 can absorb air, so that the strapping 500 conveyed by the conveyor assembly can be adsorbed on the outer periphery of the strapping ring 200, and the strapping ring 200 can rotate around its own axis and then all the strapping 500 are wound around the outer periphery of the strapping ring 200. The adjustment component on the strapping ring 200 can adjust the diameter of the strapping ring 200 according to the size of the material, so that it can adapt to materials of different sizes. Compared with the prior art in which the size of the strapping ring 200 cannot be changed, the size of the strapping ring 200 is similar to the size of the material, and the strapping ring 200 can strap the strapping 500 of suitable length to the material, thereby avoiding the tightening device from tightening the strapping 500 that is too long, reducing the working time of the collecting device, and thus improving the overall strapping efficiency.

[0025] Specifically, the bundling ring 200 in this embodiment is hollow inside and includes a plurality of adsorption tubes 210 and connecting tubes 220. The adsorption tubes 210 and connecting tubes 220 are arranged alternately. The plurality of adsorption tubes 210 and connecting tubes 220 are connected end to end to form a circular ring. Specifically, the two ends of the connecting tube 220 are respectively connected by sliding sealing to two adsorption tubes 210. It can also be said that the two ends of the adsorption tube 210 are connected by sliding sealing to two connecting tubes 220. The adsorption tube 210 in this embodiment is inserted into the two ends of the connecting tube 220 by sliding sealing. Therefore, when the adsorption tube 210 slides in the connecting tube 220, the diameter of the entire circular ring can be changed to adapt to different materials. The plurality of adsorption holes 211 are all opened on the side wall of the adsorption tube 210. The plurality of adsorption holes 211 are specifically opened on the outer side wall of the adsorption tube 210 that forms the circular ring, while the side wall of the connecting tube 220 does not have adsorption holes 211.

[0026] The regulating assembly on the strapping ring 200 includes a first valve 212 and a second valve 222. The first valve 212 is located at the connection between the connecting pipe 220 and the adsorption tube 210. The first valve 212 can control the connection state between the connecting pipe 220 and the adsorption tube 210. When the first valve 212 is closed, the connecting pipe 220 and the adsorption tube 210 are isolated from each other, and when the first valve 212 is opened, the connecting pipe 220 and the adsorption tube 210 are connected to each other; the second valve 222 is arranged on the side wall of the connecting pipe 220. When the second valve 222 is opened, the connecting pipe 220 can be connected to the outside world, and when the second valve 222 is closed, it is isolated from the outside world.

[0027] There is also an exhaust hole 213 on the adsorption tube 210, and an exhaust pump (not shown in the figure) is connected to the exhaust hole 213. The exhaust hole 213 is located on the side wall of the axial direction of the circular ring-shaped whole formed by the adsorption tubes 210, that is, the opening position of the exhaust hole 213 does not affect the adsorption of the adsorption tube 210 on the strap 500, nor does it affect the inner ring of the circular ring-shaped whole approaching the material. During the material bundling process, the vacuum pump is in working state, and the vacuum pump extracts the gas in the adsorption tube 210 through the vacuum hole 213, so that the adsorption tube 210 is in a negative pressure state, which means that the adsorption holes 211 on the surface of the adsorption tube 210 can absorb air to adsorb the strap 500. When it is necessary to adjust the size of the bundling ring 200 formed by the plurality of adsorption tubes 210 and the connecting tube 220 in the initial state, the first valve 212 is opened and the second valve 222 is closed, and the adsorption tube 210 and the connecting tube 220 are connected. The adsorption tube 210 can also extract part of the gas in the connecting tube 220, so that the inside of the connecting tube 220 is also in a negative pressure state, thereby making the adsorption tubes 210 at both ends of the connecting tube 220 approach each other under the negative pressure inside the connecting tube 220, that is, the bundling ring 200 formed by the plurality of connecting tubes 220 and the adsorption tube 210 gradually decreases from the maximum diameter, and after it is reduced to a suitable size, the first valve 212 is closed to stop the further reduction of the bundling ring 200.

[0028] It should be noted that, in order to ensure the sealed connection between the connecting tube 220 and the adsorption tube 210, an elastic film 221 is provided at the connection between the connecting tube 220 and the adsorption tube 210. The elastic film 221 is similar to an elastic hose. The two ends of the elastic film 221 are respectively connected to one end of the connecting tube 220 and one end of the adsorption tube 210 to seal the two, so that the adsorption tubes 210 at both ends of the connecting tube 220 can approach each other after the adsorption tube 210 forms a negative pressure inside the connecting tube 220 through the first valve 212, and the elastic film 221 can make the connecting tube 220 and the adsorption tube 210 have a tendency to have an initial position, that is, the elastic film 221 is elastic, and the bundling ring 200 formed when the two are in the initial position is in a state of maximum diameter, and the vacuum pump needs to work at a higher power to make the negative pressure state in the connecting tube 220 closer to the vacuum state, so that the adsorption tubes 210 at both ends of the connecting tube 220 can overcome the elastic force of the elastic film 221 and approach each other.

[0029] When the strapping ring 200 is adjusted to a suitable size and starts to strap materials, since the sizes of the materials are not exactly the same, some are large and some are small. When the size of the material is slightly larger, the material will contact the inner ring of the strapping ring 200 when passing through the strapping ring 200, and the second valve 222 is located on the inner ring of the strapping ring 200, that is, located on the side wall of the connecting pipe 220. The second valve 222 will contact the surface of the material. The second valve 222 is opened, and the first valve 212 has been closed when the strapping ring 200 is adjusted to a suitable size and starts to strap materials. At this time, the second valve When 222 is opened, the air pressure of the connecting tube 220 in a negative pressure state will gradually approach the atmospheric pressure, that is, it will be deflated. The adsorption tubes 210 at both ends of the connecting tube 220 will move toward both ends under the resetting action of the elastic film 221, thereby appropriately increasing the diameter of the strapping ring 200. Of course, it will not increase infinitely. When the material is out of contact with the inner ring of the strapping ring 200, the second valve 222 will automatically close, and the diameter of the strapping ring 200 will not continue to increase, thereby making the inner ring of the strapping ring 200 and the material have a very small distance but no contact, thereby reducing the wear of the strapping ring 200 on the material.

[0030] Of course, if the size of the material is slightly smaller, the distance between the material and the strapping ring 200 is slightly larger, and the first valve 212 will open again to connect the adsorption tube 210 and the connecting tube 220, thereby appropriately increasing the diameter of the strapping ring 200. It can be understood that the first valve 212 and the second valve 222 of the present invention can be set as electromagnetic valves, and a control module can be installed in the conveyor box 100, and the first valve 212 is set to open when the inner ring of the strapping ring 200 is slightly far away from the material, so that the diameter of the strapping ring 200 is appropriately reduced, and when the distance between the inner ring of the strapping ring 200 and the material is appropriate, the first valve 212 is closed again; if the inner ring of the strapping ring 200 is too close to the material and contacts the material, the second valve 222 is opened, so that the diameter of the strapping ring 200 is appropriately increased, and when the distance between the inner ring of the strapping ring 200 and the material is appropriate, the second valve 222 is closed again.

[0031] In a further embodiment, in order to cut off the strapping 500 after the strapping is completed, a cutting assembly is provided in the conveyor box 100, and the cutting assembly can cut off the strapping 500 and also has the function of tightening the strapping 500. Specifically, the cutting assembly includes an abutment plate 300, a first abutment joint 320, a second lower joint and a cutting head 340. A support frame 130 is provided in the conveyor box 100, and the abutment plate 300 is fixed on the support frame 130. The abutment plate 300 is located below the strapping ring 200. The first abutment joint 320, the second abutment joint 330 and the cutting head 340 are all vertically arranged in the conveyor box 100, and the first abutment joint 320, the second abutment joint 330 and the cutting head 340 are all retractable. The fixed ends of the three are fixed in the conveyor box 100, the upper end of the first abutment joint 320 is sticky, and the cutting head 340 is located between the first abutment joint 320 and the second abutment joint 330. Figure 6 As shown, one side of the cutting head 340 is a blade 341, and the other side is a contact 342 that can be heated. When the cutting head 340 rises, the blade 341 located on the left side of the cutting head 340 can cut the bandage 500, and the heating contact 342 on the other side can heat and melt one end of the cutting bandage 500 so that it adheres to the other end.

[0032] When the strap 500 is driven by the binding ring 200 to rotate one circle, the first abutment head 320 is extended so that its upper end can stick to one end of the strap 500, and when the part of the stuck end overlaps with the other end of the strap 500, the second abutment head 330 is extended to abut the overlapping part, and finally the cutting head 340 is extended to cut off the strap 500.

[0033] It should be noted that in order to enable the cutting assembly to have the function of tightening the strap 500, as Fig. 9 , Fig.10 and Fig.11 As shown, a slide plate 310 is provided at the bottom of the support frame 130, one end of the slide plate 310 is fixedly connected to the inner wall of the conveyor box 100, a slide rail is provided on the slide plate 310, and the slide rail extends along the axial direction of the strapping ring 200. The support frame 130 is slidably connected to the slide plate 310, and the support frame 130 can slide along the slide rail of the slide plate 310. When the support frame 130 slides, the strapping ring 200 is driven to slide synchronously, and the strapping ring 200 slides along its axial direction. Before the support frame 130 drives the strapping ring 200 to move, the vacuum pump connected to the adsorption tube 210 stops working, and the adsorption hole 211 on the adsorption tube 210 no longer adsorbs the strap 500. At this time, the upper end of the first abutment head 320 sticks to one end of the strap 500. As the strapping ring 200 gradually moves, the strap 500 is separated from the outer periphery of the strapping ring 200 and is thus strapped to the outer periphery of the material, and the abutment plate 300 is gradually located directly above the first abutment head 320 (with the abutment plate 300 being located at the upper end of the first abutment head 320). Fig.10As shown, the support frame 130 moves to the right and drives the abutment plate 300 to move to the right, so that the abutment plate 300 is gradually located directly above the first abutment head 320. When the support frame 130 is completely located directly above the first abutment head 320, the support frame 130 stops sliding. Figure 6 to Figure 7 As shown in the state change, the second abutment joint 330 gradually extends and presses the other end of the strap 500 gradually toward the lower end of the abutment plate 300. At this time, the strap 500 gradually tightens. When the second abutment joint 330 presses the strap 500 against the lower end of the abutment plate 300, it overlaps with the other end of the strap 500. The cutting head 340 extends, and the blade 341 on the left side of the cutting head 340 cuts the strap 500. At the same time, the heating contact 342 on the other side has a higher temperature, which can adhere the cut-off part of the strap 500 to the overlapping part of the strap 500, so that the strap 500 can be connected into a whole.

[0034] Specifically, in order to achieve the sliding of the above-mentioned support frame 130, a telescopic member (not shown in the figure) is provided on the side of the support frame 130 close to the conveyor box 100 and does not affect the cutting of the strap 500 by the cutting assembly. The telescopic member is distributed along the axial direction of the shaft binding ring 200, and the other end of the telescopic member is fixed on the inner wall of the conveyor box 100. When the telescopic member is extended and retracted, it can push the support frame 130 to move in the slide rail on the slide rail plate 310.

[0035] It should be noted that the telescopic member in this embodiment can be a hydraulic cylinder, an electric telescopic cylinder or a pneumatic cylinder, etc., and is not specifically limited here.

[0036] In a further embodiment, in order to facilitate the conveying of the strap 500, a feed trough 150 and a discharge trough 160 are further provided in the conveyor box 100, and the feed trough 150 and the discharge trough 160 are both fixedly provided at the bottom of the support frame 130, such as Figure 4 As shown, the feed trough 150 and the discharge trough 160 are distributed up and down and have overlapping parts. The strap 500 is transported from the feed trough 150 to the side close to the outer periphery of the strapping ring 200. When the strap 500 partially extends out of the discharge trough 160, the adsorption holes 211 on the outer periphery of the strapping ring 200 adsorb the strap 500. As the strapping ring 200 rotates, the strap 500 can be pulled out of the discharge trough 160, and the discharge port 170 of the discharge trough 160 is located at the overlapping part of the discharge trough 160 and the feed trough 150. This arrangement enables the strap 500 to also have an overlapping part, which is convenient for melting and bonding the two ends of the strap 500.

[0037] It should be noted that if Fig. 9 and Fig.11As shown, the side ends of the discharge trough 160 and the feed trough 150 are open to the outside world. The discharge trough 160 and the feed trough 150 are similar to two plates superimposed on each other, and there is a gap at the superimposed position, and the strap 500 is transported or output in the gap. When the support frame 130 moves along the slide rail of the slide rail plate 310 so that the abutment plate 300 is located above the first abutment joint 320, since the strap 500 extending from the discharge port 170 of the discharge trough 160 is bonded to the upper end of the first abutment joint 320, the position of the strap 500 will not be displaced significantly as the support frame 130 moves, but the discharge trough 160 and the feed trough 150 gradually move away from the strap 500 in a translational manner, so that the strap 500 is detached from the discharge trough 160 and the feed trough 150, and detached in a manner similar to translation, thereby facilitating the subsequent second abutment joint 330 and the cutting head 340 to tighten and cut the strap 500.

[0038] Specifically, the feed trough 150 and the discharge trough 160 in this embodiment both have curvature, and the two ends that are far away from each other have curvature, so as to adapt to the shape of the strapping ring 200, so that the strapping ring 200 extending from the feed trough 150 is closer to the strapping ring 200, which is convenient for the adsorption of the strapping ring 200. At the same time, the strapping ring 500 enters the discharge trough 160 from the strapping ring 200 more smoothly.

[0039] More specifically, the conveyor belt assembly in this embodiment includes a reel 110 and a conveying roller 120. The reel 110 is located outside the conveyor belt box 100. The outer circumference of the reel 110 is wound with circles of straps 500. There are two conveying rollers 120. The two conveying rollers 120 are rotatably connected in the conveyor belt box 100. The conveying rollers 120 are driven to rotate by a motor (not shown in the figure). The two conveying rollers 120 clamp the strap 500 in the middle. The conveying rollers 120 rotate to convey the strap 500 into the feed trough 150. A guide groove 140 is also provided in the conveyor belt box 100 and is in the same plane as the feed trough 150. There are two guide grooves 140, which are respectively located on both sides of the two conveying rollers 120, thereby playing a guiding role.

[0040] In a further embodiment, in order to enable the strapping ring 200 to rotate around its own axis, a driving assembly is provided on the support frame 130, and the driving assembly includes a driving motor 400 and a driving wheel 410. The driving wheel 410 is rotatably provided on the support frame 130, and is specifically rotatably connected to the support frame 130 via a connecting plate. The outer periphery of the driving wheel 410 is elastic, and the elastic outer periphery of the driving wheel 410 abuts against the inner ring of the strapping ring 200, and a smooth arc track 430 is also provided on the support frame 130. The arc track 430 is located below the driving wheel 410, and the outer periphery of the strapping ring 200 is in sliding contact with the smooth surface of the arc track 430. The driving wheel 410 and the arc track 430 restrict the strapping ring 200 to the support frame 130 and ensure that the strapping ring 200 is always on the arc track 430 without leaving the arc track 430. The driving motor 400 is fixedly mounted on the support frame 130 . The rotating shaft of the driving motor 400 and the driving wheel 410 are driven by a belt. When the driving motor 400 rotates, the driving wheel 410 is driven to rotate, and the driving wheel 410 drives the tying ring 200 to rotate.

[0041] It should be noted that there is a groove on the surface of the driving wheel 410, which can prevent the driving wheel 410 from contacting the second valve 222 on the connecting pipe 220 constituting the binding ring 200, and the outer periphery of the driving wheel 410 is made of rubber.

[0042] In a further embodiment, in order to ensure that the strapping ring 200 can rotate smoothly, two driven wheels 420 are rotatably arranged on the support frame 130. The two driven wheels 420 are arranged in the same row as the driving wheel 410. The height of the two driven wheels 420 is slightly higher than the driving wheel 410 to adapt to the strapping ring 200, and there are grooves on the surface of the two driven wheels 420. At the same time, the outer periphery of the two driven wheels 420 is also made of rubber.

[0043] The specific working process of a bundling structure provided by the present invention is described in combination with the above embodiments: Adjustment: The size of the strapping ring 200 is adjusted, and the vacuum pump (not shown in the figure) is started. The first valve 212 is opened, and the second valve 222 is closed. The vacuum pump extracts the gas in the adsorption tube 210 constituting the strapping ring 200. Since the first valve 212 between the connecting tube 220 and the adsorption tube 210 is opened, and the second valve 222 on the connecting tube 220 is closed, the connecting tube 220 is also in a negative pressure state, and the adsorption tubes 210 slidably and sealedly connected at both ends of the connecting tube 220 are close to each other, thereby reducing the diameter of the strapping ring 200. When it is reduced to a suitable size, the first valve 212 is closed, and the adjustment is completed.

[0044] Wrapping strap 500: The drive motor 400 and the electric motor (not shown in the figure) are started, and the electric motor drives the two conveying rollers 120 to rotate, and one end of the strap 500 is pulled out from the unwinding roller 110 and inserted into the guide groove 140. The two conveying rollers 120 can clamp the strap 500 and thus convey the strap 500 into the feed trough 150. The drive motor 400 drives the driving wheel 410 to rotate, and the driving wheel 410 is in rolling friction contact with the inner ring of the strapping ring 200, thereby driving the strapping ring 200 to rotate. When the strap 500 extends out from one end of the feed trough 150, the adsorption holes 211 on the outer periphery of the strapping ring 200 adsorb the strap 500. The strapping ring 200 rotates to wind the strap 500 around the outer periphery of the strapping ring 200, and one end of the strap 500 enters the discharge trough 160. When the strap 500 partially extends out from the discharge port 170 of the discharge trough 160, the winding of the strap 500 is completed.

[0045] Fuse Tie 500: After the strap 500 partially extends out of the discharge port 170, the first abutment joint 320 stretches to adhere the strap 500 to the first abutment joint 320. After the adhesion is completed, the telescopic member begins to shorten, thereby driving the support frame 130 to move along the axial direction of the strapping ring 200, so that the abutment plate 300 is gradually located directly above the first abutment joint 320, and the strap 500 gradually detaches from the discharge trough 160 and the feed trough 150. After the abutment plate 300 is completely located directly above, the strap 500 is completely detached from the discharge trough 160 and the feed trough 150. Figure 6 As shown, the second abutment joint 330 begins to extend, thereby pushing the portion of the strap 500 extending out of the guide groove 140. At this time, the strap 500 is abutted and tightened by the second abutment joint 330. After the second abutment joint 330 abuts the strap 500 against the abutment plate 300, there is an overlapping portion with the other end of the strap 500. At this time, the cutting head 340 is located between the first abutment joint 320 and the second abutment joint 330 and the cutting head 340 extends, thereby cutting off the portion of the strap 500 extending out of the guide groove 140. The temperature of the high-temperature contact 342 on the cutting head 340 can melt the overlapping portion of the strap 500 and thereby adhere them together, completing the cutting of the strap 500. At this time, the material is bundled.

[0046] If the size of the material changes, for example, the size of the material is slightly larger, the material will contact the inner ring of the strapping ring 200 when entering the strapping ring 200. At this time, the second valve 222 on the connecting pipe 220 constituting the strapping ring 200 will be opened. After the second valve 222 is opened, the air pressure in the connecting pipe 220 gradually approaches the atmospheric pressure. The adsorption tubes 210 at both ends of the connecting pipe 220 move away from each other under the pulling force of the elastic film 221 to restore the elastic film 221, thereby appropriately increasing the diameter of the strapping ring 200. When the inner ring of the strapping ring 200 no longer contacts the material and the distance between them is appropriate, the second valve 222 is opened. 22 is automatically closed to prevent the strapping ring 200 from continuing to increase; if the size of the material is slightly smaller, the distance between the outer periphery of the material and the inner ring of the strapping ring 200 increases, and the first valve 212 will open at this time, so that the adsorption tubes 210 at both ends of the connecting tube 220 are close to each other, thereby appropriately reducing the diameter of the strapping ring 200. When the distance between the inner ring of the strapping ring 200 and the material is appropriate, the first valve 212 is closed to prevent the strapping ring 200 from continuing to decrease, thereby realizing the function of adaptively adjusting the size of the strapping ring 200 according to the size of each material, avoiding excessive waste of the strapping band 500.

[0047] The present invention also provides a strapping machine, which includes the strapping structure in the above embodiment, such as Fig.12 As shown, the strapping machine also includes a frame 180 and a conveyor belt 190. The conveyor belt 190 is located on the frame 180, and the strapping structure is also located on the frame 180. The conveyor belt 190 is close to the strapping structure. A mechanical arm (not shown in the figure) is arranged on the frame 180. When the conveyor belt 190 transports the material close to the strapping structure, the mechanical arm clamps the material to a position located at the center of the strapping ring 200. After the strapping structure has finished strapping the material, the mechanical arm places the material at a designated position. Subsequently, the mechanical arm continuously cycles to strap all the materials on the conveyor belt 190.

[0048] The technical features of the above embodiments may be combined arbitrarily. To make the description concise, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0049] The above-described embodiments only express several implementation methods of the present invention, and the description thereof is relatively specific and detailed, but it cannot be understood as limiting the scope of the present invention. It should be pointed out that, for a person of ordinary skill in the art, several modifications and improvements can be made without departing from the concept of the present invention, and these all belong to the protection scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the attached claims.

Claims

1. A bundling structure, characterized in that: include: A conveyor box, one end of which is provided with a conveyor assembly, the conveyor assembly can convey the strapping tape, and materials pass through the upper end of the conveyor box; A strapping ring, the strapping ring is located on the conveyor box, a plurality of adsorption holes are provided on the outer circumference of the strapping ring, the plurality of adsorption holes can adsorb the strapping belt, and the strapping ring rotates around its own axis to drive the strapping belt to be wound around the outer circumference of the strapping ring; An adjusting component, wherein the adjusting component can adjust the diameter of the strapping ring, and the diameter of the strapping ring is positively correlated with the size of the material; A cutting assembly is used to cut the strap.

2. The bundling structure according to claim 1, characterized in that: The bundling ring is hollow inside and includes a plurality of adsorption tubes and connecting tubes, the connecting tubes and the adsorption tubes are arranged alternately, and both ends of the connecting tubes are slidingly sealed to connect the adsorption tubes, and the regulating assembly includes a first valve and a second valve, the first valve is located between adjacent adsorption tubes and connecting tubes, and the second valve is located on the side wall of the connecting tube; When the diameter of the bundling ring decreases, the interior of the adsorption tube is in a negative pressure state, the first valve is opened, the second valve is closed, the interior of the connecting tube is in a negative pressure state and the pressure gradually approaches a vacuum state, and the adsorption tubes at both ends of the connecting tube are close to each other; When the diameter of the bundling ring increases, the interior of the adsorption tube is in a negative pressure state, the first valve is closed, the second valve is opened, the interior of the connecting tube is in a negative pressure state and the pressure gradually approaches the atmospheric pressure, and the adsorption tubes at both ends of the connecting tube are away from each other.

3. The bundling structure according to claim 1, characterized in that: The cutting assembly includes an abutment plate, a first abutment head, a second abutment head and a cutting head. A support frame is provided in the conveyor box. The abutment plate is fixedly connected to the support frame and is located below the strapping ring. The first abutment head, the second abutment head and the cutting head are all vertically arranged and can be retracted. The fixed ends of the three are fixed inside the conveyor box. When the strap passes around the outer circumference of the strapping ring, the first abutment head abuts the strap to the abutment plate, and the second abutment head abuts the overlapping part of the strap. The cutting head is located between the first abutment head and the second abutment head to cut the other end of the strap.

4. The bundling structure according to claim 3, characterized in that: A feed trough and a discharge trough are provided at the lower end of the support frame, and the feed trough and the discharge trough are distributed up and down and have overlapping parts. The support frame can move along the axial direction of the strapping ring to leak out the straps in the discharge trough and the feed trough. When the straps leak out, they are located below the abutment plate, and the first abutment head is bonded to one end of the strap before the strap is separated from the discharge trough.

5. The bundling structure according to claim 4, characterized in that: The ends of the feed trough and the discharge trough that are away from each other both have an arc.

6. The bundling structure according to claim 4, characterized in that: A telescopic member is arranged in the conveyor box, the telescopic member is connected to the support frame, and the telescopic member can be axially telescoped along the binding ring to tighten the binding belt.

7. The bundling structure according to claim 3, characterized in that: The support frame is provided with a driving assembly, and the driving assembly drives the bundle to rotate around its own axis.

8. The bundling structure according to claim 7, characterized in that: The driving assembly includes a driving motor and a driving wheel. The driving motor is fixed on the supporting frame. The driving wheel is rotatably arranged on the supporting frame. The outer periphery of the driving wheel is elastic and is in rolling contact with the inner periphery of the strapping ring. The driving motor is drivingly connected to the driving wheel.

9. The bundling structure according to claim 8, characterized in that: The support frame is also provided with two driven wheels, which are arranged in the same row as the driving wheel.

10. A strapping machine, characterized in that: The strapping structure comprises the strapping structure described in any one of claims 1 to 9, wherein the strapping machine comprises a frame and a conveyor belt, and the conveyor belt and the strapping structure are connected to the frame.

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