A damping mechanism and a steel material bundling machine using the same

Abstract

The application discloses a damping mechanism and a steel material bundling machine using the damping mechanism. The damping mechanism is arranged outside a screwing mechanical hand and comprises two opposite partitions and magnets arranged outside each partition. An extension wire feeding channel is formed between the two partitions and horizontally extends as a through hole of the screwing mechanical hand and an inner wire feeding channel. When feeding two wires, due to the magnet, a previous wire is attracted by the magnet and then leans against the surface of the partition, and a relatively large friction resistance is generated between the wire and the partition, which is larger than the friction between the two wires. The tail of the other wire is pushed by a second moving part in a wire feeding groove. At this time, the wire is not attracted by the magnet, and the wire feeding resistance is relatively small compared with the resistance of the previous wire, so that the tails of the two wires are flush. At this time, the heads of the two wires are basically flush, enter the extension wire feeding channel and are subjected to the magnet, and the resistances of the two wires are basically consistent. The tails of the two wires are jointly pushed by the second moving part to feed the wires.

Description

[0001] The present application is a divisional application of the parent application "Openable wire feeding mechanism and steel material bundling machine using the same", the parent application has an application date of May 22, 2023, and an application number of 2023105789681. TECHNICAL FIELD

[0002] The present application belongs to the field of bundling machines, and more particularly relates to a damping mechanism and a steel material bundling machine using the same. BACKGROUND

[0003] In traditional industry, reinforcing bars, steel sections and the like are often bundled by manual operation using simple tools. Under manual labor, the high work intensity easily causes worker fatigue, and it is also possible to cause work injuries, which is not conducive to safety production. At the same time, the bundling efficiency is low and the bundling quality is not high. In order to solve these problems, some reinforcing bar bundling devices appear on the market, such as Chinese invention patent "Bar bundling machine and bundling method" (application number CN2010105702801, application date December 2, 2010, authorized announcement date August 15, 2012), but these devices have the following problems: (1) the lack of sufficient gripping force on the bundled steel wire, resulting in insufficient bundling and tightening force, causing the bundling to be loose; (2) the steel wire used for bundling is prone to winding and rolling when feeding; (3) the steel wire used for bundling lacks relevant design for automatic feeding.

[0004] In order to overcome the problems of traditional industry and existing reinforcing bar bundling machines, relevant cooperative companies have developed Chinese invention patents "Full-automatic mechanical hand reinforcing bar bundling machine" (application number 2015103507968, application date June 23, 2015, authorized announcement date December 26, 2017) and "Reinforcing bar bundling machine based on driven opening and closing clamping block device" (application number 2016102833451, application date April 28, 2016, authorized announcement date May 11, 2018).

[0005] The Chinese invention patent with the announcement number CN104925293B discloses a steel bar bundling device named "Fully Automatic Manipulator Steel Bar Bundling Machine". This invention patent realizes the bundling of steel bar bundles by the coordinated use of a lower wire straightening workbench and a rotary clamping mechanical claw. The lower wire straightening workbench consists of a base, a wire frame, a roller straightener, a hydraulic shear, an opening and closing guide tube and a column. The opening and closing guide tube consists of a tightening hydraulic cylinder, a four-bar linkage and a guide tube (the tightening hydraulic cylinder can control the guide tube through the four-bar linkage). When working, the lower wire straightening workbench is responsible for passing the steel wire for bundling through the bottom of the steel bar bundle and into the rotary clamping mechanical claw (at this time, the opening and closing guide tube of the lower wire straightening workbench is in a closed state, and the steel wire passes through the opening and closing guide tube, which serves as a guide for wire feeding). When the wire feeding length reaches the set wire feeding length, the hydraulic shearing action will cut the steel wire, and then the opening and closing guide tube will open. The rotary clamping mechanical claw will pull up both ends of the steel wire to the set height and then twist it to achieve bundling of the steel bar bundle.

[0006] A Chinese invention patent with publication number CN105775201B discloses a steel bar bundling machine entitled "A driven opening and closing clamping block device based on a driven opening and closing clamping block device," in which the driven opening and closing clamping block device is used to replace the opening and closing guide tube in publication number CN104925293B. Compared with the opening and closing guide tube in publication number CN104925293B, the driven opening and closing clamping block device has a simpler structure and does not require active power drive components such as hydraulic cylinders or pneumatic cylinders, thereby simplifying the motion mechanism and saving costs. At the same time, it eliminates the control program of active power drive components such as hydraulic cylinders or cylinders, effectively avoiding malfunctions.

[0007] Although these baling machines not only solve the above problems but also gain market favor, the above-mentioned steel bar baling machines can only realize the threading, bundling and rotation of one bundled steel bar in actual use, that is, for the steel bars to be bundled, only one steel bar can be used for bundling (for a fixed position to be bundled, only one steel bar can be used for bundling at a time), and it is impossible to realize the bundling of multiple steel bars (that is, it is impossible to use multiple steel bars for bundling for a fixed position to be bundled). Although the bundling effect of the baling machine is very good and the use of one steel bar for bundling can also meet customer needs, under certain conditions, two steel bars must be used for bundling at the same time to meet transportation and use requirements, which seriously limits the applicability of the steel bar baling machine and prevents the baling machine from being more widely promoted and used; in addition, the front and rear jacking wire feeding method requires precise control of the wire feeding process of the bundled steel bars, which can easily cause poor wire feeding or errors. Summary of the Invention

[0008] The present application aims to overcome the deficiencies of the prior art, and on the basis of the existing and developed steel bar bundling machines, the basic structure is kept unchanged, and the structure and / or composition are adjusted to adapt to the wire feeding and bundling of one or more steel bars for bundling.

[0009] The technical purpose of the present application is achieved by the following technical solutions.

[0010] The openable and closable wire feeding mechanism is characterized in that it comprises a first fixed part and a second fixed part arranged between the wire feeding channel and the hydraulic shears in the steel bar bundling machine, and a third fixed part arranged between the left and right rotating arms of the screwing mechanical arm of the steel bar bundling machine, wherein:

[0011] The first fixed part, the second fixed part and the third fixed part are all arranged in parallel along the wire feeding direction of the steel bar for bundling; a wire feeding groove is arranged in the second fixed part and the third fixed part, and in the wire feeding direction, the wire feeding groove of the second fixed part and the wire feeding groove of the third fixed part are opposite to each other to form a continuous wire feeding channel; a controllably movable cover plate is arranged above the wire feeding grooves of the second fixed part and the third fixed part to realize the opening and closing control of the wire feeding grooves;

[0012] A first moving part that can move along the wire feeding direction of the steel bar for bundling is arranged on the first fixed part, one end of a second moving part is connected to the first moving part, and the other end is arranged in the wire feeding groove of the second fixed part; when the first moving part moves on the first fixed part, the first moving part drives the second moving part connected thereto to also move along the wire feeding direction; the other end of the second moving part located in the wire feeding groove of the second fixed part also moves along the wire feeding direction, thereby pushing the steel bar for bundling located in the wire feeding groove into the inner wire feeding channel.

[0013] In the technical solution of the present application, the cover plate is connected to a cover plate control system, the cover plate control system is composed of a cover plate control cylinder and a moving mechanism, the cylinder output shaft of the cover plate control cylinder is connected to a support transmission part of the moving mechanism, the support transmission part is provided with a cover plate at the top and a moving part at the bottom, and the moving part is arranged on a track.

[0014] In the technical scheme of the present application, the second moving part comprises a horizontal part, a vertical part and a protruding part, one end of the horizontal part is fixedly connected with the first moving part so that the second moving part and the first moving part are connected into one body, and the other end extends above the wire feeding groove of the second fixed part; the vertical part is arranged in a vertical downward direction substantially perpendicular to the horizontal part, the bottom of the vertical part is provided with the protruding part, the shape of the vertical part and / or the protruding part is matched with the shape of the wire feeding groove of the second fixed part, and a wire feeding through hole is arranged in the vertical part of the second moving part. In the structure of the second moving part, a sliding groove is arranged on the horizontal part connected with the vertical part, a second connecting hole is arranged on the horizontal part around the sliding groove, the vertical part of the baffle is connected with the horizontal part of the baffle at a substantially ninety-degree angle, the vertical part of the baffle is connected with the second connecting hole through a screw or a bolt, the plug is arranged in the sliding groove, and the plug is connected with a plug control system so as to control the movement of the plug in the vertical direction through the plug control system.

[0015] In the technical scheme of the present application, the plug control system is a plug control cylinder, the cylinder output shaft of the plug control cylinder is connected with or contacts the top of the plug, the movement of the cylinder output shaft of the plug control cylinder in the vertical direction drives the movement of the plug in the vertical direction, thereby realizing the control of the opening and closing state of the wire feeding through hole by the bottom end of the plug, and the plug control cylinder as the plug control system is selected to be arranged on the hydraulic shears or the horizontal part of the second moving part. A sliding hole is arranged in the sliding groove, and a sliding block of the plug is arranged in the sliding hole; the upper surface of the sliding groove is flush with the upper surfaces of the vertical part and the protruding part; in the vertical direction, the distance from the horizontal part of the baffle to the bottom end of the second moving part is substantially consistent with the depth of the wire feeding groove of the second fixed part.

[0016] In the technical scheme of the present application, a jacking mechanism is arranged between a plurality of third fixed parts of the inner wire feeding channel, and is preferably arranged at a central position between two third fixed parts; the jacking mechanism comprises a jacking cylinder, an integral jacking mechanism is installed on the mounting base of the third fixed part of the bundling machine by using a mounting bracket, the jacking cylinder is fixedly arranged below the lower mounting plate, the output shaft of the jacking cylinder penetrates through the lower mounting plate and is connected with the bottom end of the jacking core, support columns are arranged around the lower mounting plate, the top end of the support column is provided with an upper mounting plate, and an observation detection hole is arranged on the support column; the jacking core penetrates through the upper mounting plate and the mounting base, and the top end thereof is located between the inlet and outlet of the wire feeding groove of the adjacent third fixed part; a limiting device is sleeved on the jacking core and is in close contact with the jacking core, the upper mounting plate is fixed to the lower surface of the mounting base by a screw or a bolt, and the limiting device is fixed to the upper surface of the mounting base by a screw or a bolt.

[0017] In the technical scheme of the present application, a damping mechanism is arranged on the outer side of the screwing mechanical hand, comprising two opposite arranged baffle plates, and a magnet arranged on the outer side of each baffle plate, an extension wire feeding channel is formed between the baffle plates, as a through hole of the screwing mechanical hand and a horizontal extension of the inner wire feeding channel.

[0018] The number of the second fixing component is one, and the number of the third fixing component is at least one, preferably 2-4.

[0019] The steel material bundling machine adopting the wire feeding mechanism.

[0020] Compared with the prior art, the inner and outer wire feeding channels are replaced as a whole, the fixed component, the moving component and the open and closed cover plate are cooperated, the servo motor or the stepping motor or the hydraulic motor is used as the power source and is controlled, the bundled steel bars from the hydraulic cutting device can enter the outer wire feeding channel one or more, when the moving component pushes the wire, the outer wire feeding channel is relatively closed, and the inner wire feeding channel is closed, when the wire is lifted and twisted (i.e. the wire is bundled), the inner wire feeding channel is opened, the stable wire feeding and the accurate wire feeding are realized, the failure rate is reduced, and the wire feeding and bundling for one or more bundled steel bars are adapted. BRIEF DESCRIPTION OF DRAWINGS

[0021] Figure 1 is a schematic diagram of a top wire entering steel bar bundling machine improved by a related cooperative company.

[0022] Figure 2 is a schematic diagram of the existing technology about the bundling of bar steel.

[0023] Figure 3 is a structure schematic diagram of the wire feeding mechanism developed by the company before (1).

[0024] Figure 4 is a structure schematic diagram of the wire feeding mechanism developed by the company before (2).

[0025] Figure 5 is a structure schematic diagram of the cover plate of the second fixing component in the wire feeding mechanism of the present application in the open state.

[0026] Figure 6 is a structure schematic diagram of the cover plate of the second fixing component in the wire feeding mechanism of the present application in the closed state.

[0027] Figure 7 is a structure schematic diagram of the third fixing component and the damping mechanism in the wire feeding mechanism of the present application.

[0028] Figure 8 is a structure schematic diagram of the second moving component in the wire feeding mechanism of the present application (1).

[0029] Figure 9is the structural schematic view of the second moving part in the wire feeding mechanism of the application.

[0030] Figure 10 is the structural schematic view of the second moving part in the wire feeding mechanism of the application.

[0031] Figure 11 is the structural schematic view of the second moving part in the wire feeding mechanism of the application.

[0032] Figure 12 is the structural schematic view of the jacking mechanism in the steel material bundling machine of the application.

[0033] Wherein, 1—left rotating arm, 2—left clamping working surface, 3—right rotating arm, 4—right clamping working surface, 5—bundling steel bar, 6—bundling steel bar to be bundled, 7—left clamping arm, 8—right clamping arm, 9—base, 10—wheel, 11—hydraulic shear, 12—straightener, 13—arc guiding device, 14—pre-straightening roller set, 15—wire feeding guiding device, 16—first stand, 17—carriage, 18—second stand, 19—opening and closing guide pipe, 20—screwing mechanical hand, 21—outer wire feeding channel, 22—inner wire feeding channel, 23—protective cover, 24—first fixed part, 25—first moving part, 26—second moving part, 26-1—horizontal part, 26-2—vertical part, 26-3—protruding part, 26-4—first connecting hole, 26-5—wire feeding through hole, 26-6—second connecting hole, 26-7—sliding hole, 26-8—sliding groove, 26-9—baffle, 26-9-1—vertical part of baffle, 26-9-2—horizontal part of baffle, 26-10—inserting piece, 26-10-1—sliding block of inserting piece, 26-10-2—top of inserting piece, 27—second fixed part, 27-1—wire feeding groove of second fixed part, 27-2—cover plate of third fixed part, 28—cover plate control cylinder, 28-1—cylinder output shaft of cover plate control cylinder, 29-1—moving part, 29-2—supporting transmission part, 29-3—track, 30—third fixed part, 31—jacking mechanism, 31-1—jacking cylinder, 31-2—jacking core, 31-3—limiting device, 31-4—mounting bracket, 31-4-1—upper mounting plate, 31-4-2—lower mounting plate, 31-4-3—supporting column, 31-4-4—observation and detection hole, 32—damping mechanism, 32-1—magnet, 32-2—extended wire feeding channel, 32-3—partition plate, 33—inserting piece control cylinder, 33-1—cylinder output shaft of inserting piece control cylinder.

[0034] For those skilled in the art, other related drawings can be obtained according to the above drawings without creative labor. DETAILED DESCRIPTION

[0035] The technical solutions of the application are further described below through specific examples.

[0036] The improved "reinforcing steel bar bundling machine with top wire inlet" of the relevant cooperative company is taken as an example for description. As shown in the accompanying drawings Figure 1 The reinforcing steel bar bundling machine is described in detail in the invention patent "reinforcing steel bar bundling machine with top wire inlet", (the patent number is ZL2021206564094, the application date is March 31, 2021, and the authorized announcement date is February 1, 2022), wherein the screwing mechanical hand adopts the structure of the invention patent "mechanical hand for screwing and bundling" (the patent number is ZL2015103514162, the application date is June 23, 2015, and the authorized announcement date is December 26, 2017), the opening and closing guide pipe adopts the structure of the invention patent "driven opening and closing clamping block device for wire threading guide applied to reinforcing steel bar bundling machine" (the patent number is ZL2016203827699, the application date is April 28, 2016, and the authorized announcement date is November 23, 2016, namely the opening and closing guide pipe based on springs) or the structure of the invention patent "automatic opening and closing guide pipe device based on spring sheets" (the patent number is ZL2020217655389, the application date is August 21, 2020, and the authorized announcement date is April 6, 2021, namely the opening and closing guide pipe based on spring sheets). No matter which structure of the opening and closing guide pipe is adopted, a plurality of opening and closing guide pipes need to be arranged in the wire inlet direction (namely the direction from the hydraulic shears to the left clamping working surface of the left rotating arm) to form a basically continuous wire feeding channel, so that the reinforcing steel bars for bundling enter the horizontally arranged wire feeding channel after entering the rear end of the bundling machine and passing through the straightening device, and then enter the through holes of the left and right clamping working surfaces of the left and right rotating arms. For the convenience of description, the whole wire feeding channel is divided into two parts, the part from the screwing mechanical hand to the hydraulic shears is called "outer wire feeding channel", and the part between the left and right rotating arms of the screwing mechanical hand is called "inner wire feeding channel".

[0037] As Figure 2The basic working process of the tying machine is illustrated by taking the tying of the bar reinforcement as an example. Since the cross section of the reinforcement is circular or approximately circular in shape, the reinforcement to be tied delivered from the reinforcement production line is gathered into a bundle, and the cross section of the tied reinforcement is circular or approximately circular in shape. The tying reinforcement passes through the bundle of reinforcement from below, and its left and right ends are arranged in the through holes of the left clamping working surface below the left rotating arm and the right clamping working surface below the right rotating arm, respectively. During the tying process, the left rotating arm and the right rotating arm move upward, thereby driving the tying reinforcement to move along the left and right ends of the reinforcement to be tied. Since the reinforcement to be tied is gathered into a bundle, and the cross section of the tied reinforcement is circular or approximately circular in shape, the tying reinforcement has small resistance to the reinforcement to be tied, and the tying reinforcement can be in good contact (i.e., close fit) with the bundle of reinforcement (i.e., the reinforcement to be tied), especially with the bottom or lower surface of the bundle of reinforcement. At this time, above the tying reinforcement, the left clamping working surface and the right clamping working surface driven by the left and right clamping arms clamp and rotate the tying reinforcement into a knot, thereby tying and bundling the bundle of reinforcement. In the delivery channel composed of the opening and closing guide pipes, the front and rear tying reinforcements use the front and rear pushing delivery method, i.e., after being cut by the hydraulic shear, the tail of the front reinforcement is pushed forward by the head of the rear reinforcement, and moves along the delivery channel. For the reinforcement to be tied, there is only one tying reinforcement at the fixed tying position to achieve tying, and multiple reinforcements cannot be tied.

[0038] In the technical solutions previously developed by the company, the "outer delivery channel" is replaced as a whole, i.e., the developed delivery mechanism is used as the "outer delivery channel" for installation and use. See the application for Chinese invention patent "A delivery mechanism and a reinforcement tying machine using the mechanism" (application number 2022116757158, application date December 26, 2022). As shown in the attached Figure 3As shown, the two open-close pipes constitute an "inner wire feeding channel", and a lifting mechanism (not shown in the figure) is optionally arranged between the two open-close pipes. The first fixed part and the second fixed part of the wire feeding mechanism are arranged in the inner wire feeding channel and the hydraulic shears. The first fixed part and the second fixed part are both arranged in parallel along the wire feeding direction of the reinforcing steel bars. A first moving part is arranged on the first fixed part and can move along the wire feeding direction of the reinforcing steel bars. The first fixed part is a rail screw, and the first moving part is a slider that moves on the rail screw. A servo motor or a hydraulic motor is used as a power source and is controlled. A wire feeding groove is arranged in the second fixed part, which is matched with the inner wire feeding channel (i.e., the open-close pipes and the wire feeding channel of the open-close pipes) and the hydraulic shears in the reinforcing steel bar bundling machine, so that the reinforcing steel bars can be fed along the path of "hydraulic shears-wire feeding groove-open-close pipes" (equivalent to the wire feeding direction). The second moving part is connected to the first moving part at one end (i.e., the top) and is arranged in the wire feeding groove of the second fixed part at the other end (i.e., the bottom). When the first moving part moves on the first fixed part (such as a rail screw), the first moving part drives the second moving part connected thereto to also move along the wire feeding direction. The other end of the second moving part arranged in the wire feeding groove of the second fixed part also moves along the wire feeding direction, thereby pushing one or two reinforcing steel bars in the wire feeding groove towards the open-close pipes and the wire feeding channel of the open-close pipes. As shown in the accompanying drawings, Figure 4 As shown, when observing the cross section of the second fixed part along the wire feeding direction, it can be seen that the wire feeding groove is arranged at the central position of the second fixed part, the top of the second moving part is fixedly connected with the first moving part, and the bottom of the second moving part is arranged in the wire feeding groove of the second fixed part to push the reinforcing steel bars. At this time, two reinforcing steel bars are arranged in the wire feeding groove, thereby providing two reinforcing steel bars for a specific bundling position to realize the subsequent clamping and rotating bundling action. This reinforcing steel bar bundling machine uses the wire feeding mechanism formed by the wire feeding groove and the moving part to replace the outer wire feeding channel, and a lifting mechanism is arranged in the inner wire feeding channel to meet the bundling operation of the bar and / or profile. This reinforcing steel bar bundling machine retains the basic configuration and / or components of the previous reinforcing steel bar bundling machine. In the design, according to the wire feeding requirement of one or multiple reinforcing steel bars, the inner wire feeding channel composed of open-close pipes is expanded in the diameter direction on the basis of the original single reinforcing steel bar to meet the use requirement of double wires or multiple wires. However, through field tests, there are still wire feeding problems (i.e., reinforcing steel bar conveying problems), such as (1) after being processed by the hydraulic shears, the reinforcing steel bar is not straight and may be raised in the wire feeding groove, so that the front end cannot enter the rotating clamping mechanical claw and / or the inner wire feeding channel, and the rear end is easily inserted into the wire feeding through hole matched with the hydraulic shears during wire pushing; (2) the inner wire feeding channel is composed of open-close pipes, and when lifting, one or two wires are easily clamped by the clamping jaws of the open-close pipes, so that the lifting and rotating clamping cannot be performed.

[0039] To solve the above problems, in the technical scheme of the present application, the "openable wire feeding mechanism" is used to form the inner and outer wire feeding channels, that is, the openable wire feeding mechanism includes the first fixed part and the second fixed part arranged between the wire feeding channel and the hydraulic shears in the steel bar bundling machine, and the third fixed part arranged between the left and right rotating arms (i.e. between the left and right clamping working surfaces) of the screwing mechanical arm of the steel bar bundling machine, wherein:

[0040] In combination with Figure 3 , 5 and 6, it is explained that the first fixed part, the second fixed part and the third fixed part are all arranged in parallel along the wire feeding direction of the bundling steel bar; the wire feeding groove is arranged in the second fixed part and the third fixed part, and in the wire feeding direction, the wire feeding groove of the second fixed part and the wire feeding groove of the third fixed part are opposite to each other to form a continuous wire feeding channel, at this time, the two openable guide pipes 19 in Figure 3 are replaced by the two third fixed parts 30 (i.e. the inner wire feeding channel is composed of two third fixed parts) in Figure 7 , and preferably, the jacking mechanism 31 is arranged between the two third fixed parts 30. The movable cover plate is arranged above the wire feeding groove of the second fixed part and the third fixed part (i.e. on the top of the second fixed part and the third fixed part) to realize the opening and closing control of the wire feeding groove (i.e. the opening and closing control of the top of the wire feeding groove). To realize the movement control of the cover plate, taking the second fixed part as an example, the cover plate is connected with the cover plate control system, the cover plate control system is composed of the cover plate control cylinder and the moving mechanism, the cylinder output shaft of the cover plate control cylinder is connected with the support transmission part of the moving mechanism, the support transmission part is provided with the cover plate on the top, the support transmission part is provided with the moving part on the bottom, and the moving part is arranged on the track (such as the sliding rail and the sliding block matched with the sliding rail). The cylinder output shaft is driven to move by the cylinder according to the instruction, at this time, the cylinder output shaft drives the support transmission part and the moving part to move left and right on the track, since the support transmission part is connected with the cover plate on the top and is designed according to the parameters such as the height of the second fixed part, the depth of the wire feeding groove and the height of the track and the moving part, the cover plate can realize the closing and opening of the wire feeding groove. It should be noted that the overall structure of the second fixed part and the third fixed part is basically the same, and in the wire feeding direction, the length of the third fixed part is less than the length of the second fixed part, generally, the number of the second fixed part is one, and the number of the third fixed part is at least one, preferably 2-4.

[0041] In combination with Figure 3 and 8—11, a first moving part is arranged on the first fixed part and can move along the wire feeding direction of the reinforcing steel bar for bundling, the top of the second moving part is connected with the first moving part, and the bottom of the second moving part is arranged in the wire feeding groove of the second fixed part; when the first moving part moves on the first fixed part, the first moving part drives the second moving part connected therewith to also move along the wire feeding direction, the bottom of the second moving part arranged in the wire feeding groove also moves along the wire feeding direction, and one or more reinforcing steel bars for bundling arranged in the wire feeding groove are pushed to the wire feeding groove of the third fixed part arranged between the left and right rotating arms of the screwing mechanical arm of the reinforcing steel bar bundling machine.

[0042] As shown in FIG. 11, the structure of the second moving part in the wire feeding mechanism of the present application is shown in the following figures: Figure 8 —11, a first moving part is arranged on the first fixed part and can move along the wire feeding direction of the reinforcing steel bar for bundling, the top of the second moving part is connected with the first moving part, and the bottom of the second moving part is arranged in the wire feeding groove of the second fixed part; when the first moving part moves on the first fixed part, the first moving part drives the second moving part connected therewith to also move along the wire feeding direction, the bottom of the second moving part arranged in the wire feeding groove also moves along the wire feeding direction, and one or more reinforcing steel bars for bundling arranged in the wire feeding groove are pushed to the wire feeding groove of the third fixed part arranged between the left and right rotating arms of the screwing mechanical arm of the reinforcing steel bar bundling machine. Figure 8 is a view observed along the wire feeding direction (the main body of the second moving part), Figure 9 is a corresponding top view (the main body of the second moving part), Figure 10 and 11 are side views (partially sectioned) of the closed and open states of the wire feeding through hole, respectively, and the combination is described as follows:

[0043] From Figure 8 and 9The second moving part comprises a horizontal part 26-1, a vertical part 26-2 and a protruding part 26-3. The horizontal part constitutes the top of the second moving part. One end of the horizontal part is fixedly connected with the first moving part, so that the second moving part and the first moving part are connected as a whole. A first connecting hole 26-4 is arranged at the one end of the horizontal part, and the two are fixedly connected by a screw or a bolt. The horizontal part has a certain length, one end of which is fixedly connected with the first moving part, and the other end extends above the wire feeding groove of the second fixed part. The vertical part is arranged in a vertical downward direction which is substantially perpendicular to the horizontal part. The bottom of the vertical part is provided with the protruding part. The protruding part constitutes the bottom of the second moving part. The shape of the vertical part and / or the protruding part is matched with the shape of the wire feeding groove of the second fixed part. When the first moving part moves on the first fixed part, the first moving part drives the second moving part to move as a whole. At this time, the vertical part and / or the protruding part can move in the wire feeding groove of the second fixed part and push the reinforcing steel bars in the wire feeding groove to move in the inner wire feeding channel. A wire feeding hole 26-5 is arranged on the vertical part of the second moving part and matched with the hydraulic shear. In the wire feeding process, after the reinforcing steel bars pass through the hydraulic shear, they enter the second fixed part through the wire feeding hole, and are cut off by the hydraulic shear after a certain length. From the wire feeding direction, the head of the rear reinforcing steel bar is cut off, and the tail of the cut reinforcing steel bar falls into the wire feeding groove, and is then pushed by the protruding part of the second moving part to move in the inner wire feeding channel.

[0044] In actual operation, the reinforcing steel for baling is straightened by the straightening machine and cut by the hydraulic shear, and the whole and / or tail of the reinforcing steel for baling is not flat and / or raised. When the second moving part is used for pushing, it is easy to cause the reinforcing steel for baling to be unable to be fed or to cause defects in feeding, such as the tail of the reinforcing steel for baling being raised and entering the feeding hole, the whole reinforcing steel for baling being not flat and extending in the vertical direction out of the feeding groove, and then being unable to enter the feeding groove (i.e. the inner feeding channel) of the third fixed part and / or the right rotating arm (the right clamping working surface). Therefore, the second moving part, which mainly functions to feed, can ensure that the head of the reinforcing steel for baling smoothly enters the inner feeding channel and the tail does not enter the feeding hole. In the structure of the second moving part, the sliding groove 26-8 is arranged on the horizontal part connected with the vertical part, the second connecting hole is arranged on the horizontal part around the sliding groove, the vertical part of the blocking piece is connected with the horizontal part at an angle of about 90 degrees, such as being fixed or connected as a whole, the vertical part of the blocking piece is connected with the second connecting hole through a screw or a bolt, the plug 26-10 is arranged in the sliding groove, the plug is connected with the plug control system to control the movement of the plug in the vertical direction, and then the bottom end of the plug controls the opening and closing state of the feeding hole. The plug control system is a plug control cylinder, the cylinder output shaft of the plug control cylinder is connected with or in contact with the top of the plug, the movement of the cylinder output shaft of the plug control cylinder in the vertical direction drives the movement of the plug in the vertical direction, and then the bottom end of the plug controls the opening and closing state of the feeding hole. The plug control cylinder of the plug control system is arranged on the hydraulic shear or the horizontal part of the second moving part. To prevent the plug from separating from the sliding groove, the sliding hole 26-7 (the sliding hole is arranged in the vertical direction) is arranged in the sliding groove, and the sliding block of the plug is arranged in the sliding hole. When the plug moves in the vertical direction, the sliding block of the plug moves in the vertical direction in the sliding hole and limits the movement range of the plug. It should be noted that the upper surface of the sliding groove is flush with the upper surface of the vertical part and the protruding part. In this way, the plug can move up and down in the vertical direction on the surface of the "sliding groove-vertical part-protruding part" to avoid obstacles in the vertical direction. In the vertical direction, the distance from the horizontal part of the blocking piece to the bottom end of the second moving part is basically the same as the depth of the feeding groove of the second fixed part. When feeding, the cover plate of the second fixed part is opened, and the second moving part moves in the feeding direction. At this time, the bottom end of the second moving part is located in the feeding groove, and the horizontal part of the blocking piece functions as a part of the cover plate to reduce the occurrence of feeding defects.

[0045] The wire trough and cover plate are designed to work together, with the cover plate control system controlling the opening and closing of the wire trough. When the bundled rebar is fed from the hydraulic shears into the second fixed component (the wire trough of the second fixed component), the cover plate of the second fixed component is closed, so that the entire wire trough of the second fixed component appears covered and sealed, ensuring that the bundled rebar can only move within the channel formed by the wire trough and cover plate. When the steel bars for bundling are fed from the second fixed component to the third fixed component, the cover of the second fixed component is in an open state, so that the wire feeding trough of the second fixed component is closed as a whole without a cover. At this time, the baffle of the second movable component covers the top of the wire feeding trough, that is, the horizontal part of the baffle is just above the wire feeding trough (that is, the position of the original cover, close to the opening of the wire feeding trough), and plays the effect of covering the original cover in the wire feeding direction (that is, in a certain area in front of the second movable component), which not only realizes the wire feeding from the outer wire feeding channel to the inner wire feeding channel, but also realizes that the steel bars for bundling can only move in the channel composed of the wire feeding trough and the baffle, avoiding the problems caused by its warping or overall unevenness.

[0046] The design of the slide and insert is adopted, and the opening and closing state of the wire feeding hole is controlled by the insert control system. When the steel bar for bundling is fed from the hydraulic shear to the second fixed component (the wire feeding groove of the second fixed component), the insert is in the lifting state and the wire feeding hole is in the open state ( Figure 11 ), the steel bars for bundling enter the second fixing part (the wire feeding slot of the second fixing part). After the wire is fed in, the insert is in a falling state, and the wire feeding hole is closed ( Figure 10 ), preparing for wire feeding, and preventing subsequent bundled steel bars from entering the second fixing component. During wire feeding, since the wire feed hole is always closed, the problems caused by the tail of the bundled steel bars (whether one or more) in the wire feed trough can be avoided regardless of whether the tail is tilted or not.

[0047] For the third fixed component, the same design scheme of the wire feeding groove and the cover plate is adopted, and the opening and closing state of the wire feeding groove is controlled by the cover plate control system. During the wire feeding process, the cover plate of the third fixed component is in a closed state, so that the wire feeding groove of the third fixed component as a whole is capped and closed, ensuring that the reinforcing steel bars for bundling from the second fixed component can only move in the channel (i.e., the inner wire feeding channel) composed of the wire feeding groove and the cover plate of the third fixed component, avoiding the problems caused by the upward bending or overall non-straightness of the reinforcing steel bars for bundling; when the wire is lifted and bundled, the cover plate of the third fixed component is in an open state, so that the wire feeding groove of the third fixed component as a whole is uncapped and closed. At this time, the left and right rotating arms of the twisting mechanical hand move upward, and then drive the reinforcing steel bars for bundling to come out of the wire feeding groove of the third fixed component as a whole. For the inner wire feeding channel based on the existing technology opening and closing guide pipe (whether based on spring or based on spring), when the left and right rotating arms of the twisting mechanical hand move upward to lift the reinforcing steel bars for bundling, the resistance of the clamping jaw (this resistance comes from the spring or the spring) needs to be overcome, and this resistance is exactly the power for the clamping jaw to return to the original position (to restore the inner wire feeding channel). For a reinforcing steel bar for bundling, when the clamping jaw resistance is overcome and the inner wire feeding channel is separated, there may be a "wire sticking" situation (i.e., the reinforcing steel bar for bundling is stuck by the clamping jaw, and then cannot completely separate from the inner wire feeding channel), causing wire feeding defects. When the left and right rotating arms of the twisting mechanical hand move upward to lift two or more reinforcing steel bars for bundling, the probability of "wire sticking" situation increases by several times, and even causes continuous use. Through the design scheme of the wire feeding groove and the cover plate, when the left and right rotating arms of the twisting mechanical hand move upward to lift the reinforcing steel bars for bundling, the wire feeding groove is in an uncapped and open state. Whether two or more reinforcing steel bars for bundling are lifted, no resistance will be generated, and only after lifting, the cover plate control system controls the cover plate to close the wire feeding groove again, thereby solving the "wire sticking" problem and realizing continuous production and use.

[0048] The bundled machine (such as a top wire feeding steel bar bundling machine, a full-automatic mechanical hand steel bar bundling machine, a steel bar bundling machine based on a driven opening and closing clamp block device, and a steel bar bundling machine using a jacking mechanism) using the wire feeding mechanism can replace the original "outer wire feeding channel" and "inner wire feeding channel" by using the wire feeding mechanism of the present application, and the through holes of the left and right clamping working surfaces can be widened according to the needs, while meeting the needs of conveying one or more steel bars for bundling. The entire steel bar bundling machine uses the wire feeding groove of the second fixed part as the main body of the outer wire feeding channel, uses the wire feeding groove of the third fixed part as the main body of the inner wire feeding channel, and uses the second moving part to push the steel bar for bundling to realize wire feeding for the mechanical hand and the inner wire feeding channel. In this way, the wire feeding can be one by one or multiple (such as two) at a time, so that one steel bar bundling or multiple steel bar bundling for a certain bundling position can be realized. After the wire feeding is realized, the first moving part drives the second moving part to return to the original position close to the hydraulic shear, and after the steel bar for bundling is processed by the hydraulic shear and falls into the wire feeding groove, subsequent wire feeding is performed. During the entire wire feeding process, the opening and closing states of the inner and outer wire feeding channels are controlled to avoid the defects of the open wire feeding channel and the opening and closing guide pipe. For the entire steel bar bundling machine, the steel bar for bundling retains the original wire feeding mode (such as the head of the next steel bar is above the tail of the previous steel bar after being cut off) before the hydraulic shear and after falling into the wire feeding groove. After the steel bar for bundling falls into the wire feeding groove, the original wire feeding mode is abandoned, and push-type wire feeding is adopted. In the case of ensuring the safety of wire feeding, the efficiency of wire feeding is improved. Such design not only provides convenience for new customers, but also takes into account the usage habits of old customers.

[0049] To solve the bundling problem of the stacking of profiles or steel pipes, a jacking mechanism is arranged between the third fixed parts of the inner wire feeding channel (preferably arranged at the central position between the two third fixed parts). For details, see Chinese invention patent application "Jacking mechanism and steel bar bundling machine using the mechanism" (application date December 17, 2022, application number 2022233889558), or invention patent application "Jacking mechanism and steel bar bundling machine using the mechanism" (application date December 17, 2022, application number 202211627837X), or use Figure 12The lifting mechanism shown includes a lifting cylinder, and the entire lifting mechanism is installed on the mounting base of the third fixed component of the baler using a mounting bracket, the lifting cylinder is fixedly arranged below the lower mounting plate, the output shaft of the lifting cylinder passes through the lower mounting plate and is connected to the bottom end of the lifting core body, support columns are arranged around the lower mounting plate, and an upper mounting plate is arranged on the top of the support column, and an observation and detection hole is arranged on the support column; the lifting core body passes through the upper mounting plate and the mounting base, and its top end is located between the inlet and outlet of the wire feeding groove of the adjacent third fixed component; the limiting device is sleeved on the lifting core body and fits the lifting core body (that is, without hindering the up and down movement of the lifting core body, the distance between the limiting device and the lifting core body is reduced as much as possible to avoid the lifting core body from shaking around, which can easily cause obstruction of the lifting cylinder and its output shaft), the upper mounting plate is fixed to the lower surface of the mounting base by screws or bolts, and the limiting device is fixed to the upper surface of the mounting base. It should be noted that, as needed, a detection device may be provided on one side of the observation detection hole to detect the amount of movement of the lifting core in the vertical direction, and the detection signal may be transmitted back to the controller of the baler for adjustment or control; similarly, in the design of the wire feeding trough and the cover plate, as well as in the design of the slide trough and the insert, a detection device may be provided to detect the amount of movement of the cover plate and the insert, and the detection signal may be transmitted back to the controller of the baler for adjustment or control.

[0050] In actual use, the best situation is that the lengths of the bundled steel bars located outside the left and right clamping working surfaces are basically the same. At this time, the bundling effect of the clamping and rotating twisting robot is relatively good. Although according to the preset program control of the baling machine, the length of the bundled steel bars obtained after the straightening machine and hydraulic shear are basically the same and can meet the length requirements for bundling, but when two or more bundled steel bars are used for wire feeding and / or pushing wires, the multiple bundled steel bars processed by the hydraulic shear enter the outer wire feeding channel one after another. At this time, due to the friction between the multiple wires, the front wire is relatively protruding in the wire feeding direction and is closer to the inner wire feeding channel; when the second moving part is used to push the wire, the second moving part pushes the rear wire (that is, the bundled steel bar that enters the outer wire feeding channel later). At this time, the multiple wires interact with each other in the wire feeding slot to generate friction. When the multiple wires are in the same channel, the rear wire is crowded during its forward movement, causing the front wire that was originally stationary in the channel to slide forward. The lengths of the bundled steel bars located outside the left and right clamping working surfaces are inconsistent, resulting in a poor bundling effect. Combined with Figure 1 and 7 To explain, Figure 1 The damping mechanism is not shown in Figure 7 The screwing robot is not shown. Figure 7 for Figure 1The top view of the device, in which the projection of the screwing mechanical hand is omitted, the opening and closing guide pipe is replaced by a third fixed part as the inner wire feeding channel, the damping mechanism is arranged on the outside of the left clamping working surface (i.e. the outside of the screwing mechanical hand), including two baffles arranged oppositely, and a magnet arranged on the outside of each baffle, the extension wire feeding channel is formed between the baffles, as the horizontal extension of the through hole of the screwing mechanical hand and the inner wire feeding channel (i.e. the extension wire feeding channel, the through hole of the screwing mechanical hand and the inner wire feeding channel are basically located in the same horizontal plane). Taking the case of feeding double wires (two reinforcing bars for bundling), the two reinforcing bars for bundling processed by the hydraulic shear enter the outer wire feeding channel in turn. At this time, due to the friction between the two wires, the front wire (i.e. the reinforcing bar for bundling entering the outer wire feeding channel first) protrudes relatively in the wire feeding direction and is closer to the inner wire feeding channel. When the second moving part is used to push the wire, the second moving part pushes the rear wire (i.e. the reinforcing bar for bundling entering the outer wire feeding channel later). At this time, the two wires interact in the wire feeding groove to generate friction. Because the two wires are crowded with each other, the rear wire slides forward in the inner and outer wire feeding channels with the front wire. When the front wire enters the extension wire feeding channel formed between the baffles, the front wire is attracted by the magnet and then leans against the surface of the baffle due to the action of the magnet. At this time, the friction resistance between the wire and the baffle is relatively large, which is greater than the friction between the two wires. The second moving part pushes the tail of the other wire in the wire feeding groove. At this time, the wire is not attracted by the magnet, and the wire feeding resistance is relatively small compared to the resistance of the front wire, so that the tails of the two wires are flush. At this time, the heads of the two wires are basically flush and enter the extension wire feeding channel, and are both subjected to the action of the magnet, and the resistance of the two wires is basically the same. Then the second moving part pushes the tails of the two wires to feed the wire. By using such wire feeding and / or pushing method, it is ensured that the heads and tails of each wire can be basically flush when feeding double wires or multiple wires, the lengths of the reinforcing bars for bundling outside the left and right clamping working surfaces are basically the same, and better bundling effect is achieved. Moreover, the damping mechanism has simple and compact structure and can adapt to the narrow space in the production site to the maximum extent.

[0051] The above is an exemplary description of the present application. It should be noted that any simple modification, change or other equivalent replacement without creative labor by those skilled in the art without departing from the core of the present application falls within the protection scope of the present application.

Claims

1. A damping mechanism, characterized in that: The damping mechanism is arranged on the outside of the twisting manipulator of the steel baler, and includes two partitions arranged opposite to each other, and a magnet arranged on the outside of each partition. An extended wire feeding channel is formed between the partitions, serving as a through hole of the twisting manipulator of the steel baler and a horizontal extension of the internal wire feeding channel; The magnet is used to adsorb the previous wire on the surface of the partition so that the next wire can enter the extended wire feeding channel substantially flush with the previous wire.

2. A damping mechanism according to claim 1, characterized in that: The extended wire feeding channel, the through hole of the screwing robot of the steel baling machine and the inner wire feeding channel are basically located on the same horizontal plane.

3. Steel baling machine, characterized in that, Install the damping mechanism as claimed in claim 1 or 2.

4. The steel baling machine according to claim 3, characterized in that: A lifting mechanism is arranged between the plurality of third fixing components of the inner wire feeding channel.

5. The steel baling machine according to claim 4, characterized in that: A lifting mechanism is arranged at a central position between the two third fixing components.

6. The steel baling machine according to claim 4 or 5, characterized in that: The jacking mechanism includes a jacking cylinder. The overall jacking mechanism is installed on the mounting base of the third fixed component of the baler using a mounting bracket. The jacking cylinder is fixedly arranged below the lower mounting plate. The output shaft of the jacking cylinder passes through the lower mounting plate and is connected to the bottom end of the jacking core. Support columns are arranged around the lower mounting plate. An upper mounting plate is arranged on the top of the support column, and an observation and detection hole is arranged on the support column; the jacking core passes through the upper mounting plate and the mounting base, and its top end is located between the inlet and outlet of the wire feeding groove of the adjacent third fixed component; the limiting device is mounted on the jacking core and fits the jacking core, the upper mounting plate is fixed to the lower surface of the mounting base and the limiting device is fixed to the upper surface of the mounting base.

7. The method for operating a steel bundler according to any one of claims 3 to 6, characterized in that: When the previous wire enters the extended wire feeding channel formed between the partitions, due to the action of the magnet, the previous wire is attracted by the magnet and then leans against the surface of the partition. At this time, a large friction resistance is generated between this wire and the partition, which is greater than the friction between the two wires. The second movable component pushes the tail of the other wire in the wire feeding groove. At this time, this wire is not attracted by the magnet, and the wire feeding resistance is smaller than the resistance of the previous wire, so that the tails of the two wires are aligned. At this time, the heads of the two wires are basically aligned and enter the extended wire feeding channel. They are both affected by the magnet and the resistance of the two is basically the same. The second movable component then pushes the tails of the two wires together to feed the wires.

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