Insulating sleeve arrangement and insulating steel bar production line thereof

Abstract

The application discloses an insulating sleeve arrangement device and an insulating steel bar production line, which comprises an insulating sleeve feeding structure, and an insulating sleeve delivery station is arranged on the insulating sleeve feeding structure; a transfer conveying structure, which comprises a conveying driving device and a conveying gripper unit, and the conveying driving device drives the conveying gripper unit to move the insulating sleeve on the insulating sleeve delivery station to a preset placement position; an insulating sleeve limiting arrangement structure, which comprises a lifting device and a plurality of groups of limiting clamping units arranged in a straight line at a preset interval, and the lifting device drives the limiting clamping units to move up and down; when the limiting clamping units are lifted to the preset placement position, the clamping fingers are opened to receive the insulating sleeve moved by the conveying gripper unit, and after the receiving, the clamping fingers are closed to clamp the insulating sleeve, so that the shafts of all the insulating sleeves are collinear, and a pipe penetrating channel is formed for the steel bars to penetrate. The application solves the technical problems that in the production process of the insulating steel bar, the insulating sleeve is prone to deviation and misplacement in the conveying and pipe penetrating process, and the qualified rate of the finished product is low and the production continuity is poor.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of high-speed rail insulating steel bar production, and in particular to an insulating sleeve arrangement and an insulating steel bar production line. BACKGROUND

[0002] In the automatic processing and production of insulating steel bars, it is usually necessary to uniformly sleeve several insulating sleeves on the outer surface of the steel bar to achieve insulation protection of the steel bar in a high-voltage or electromagnetic environment. Traditional production processes mostly use manual one-by-one sleeving or semi-automatic sleeving mechanisms, which not only have low efficiency, but also easily cause uneven distribution of the insulating sleeves, axial deviation, and other problems, affecting subsequent heat shrinkage fixation and overall insulation performance. With the development of building industrialization and intelligent manufacturing, the production of insulating steel bars is evolving towards full-process automation.

[0003] Patent No. CN112277329A discloses an automatic pipe-sleeving heat-shrinking production line for high-speed rail insulating steel bars. The scheme uses a rotating hub, and the hub is provided with multiple groups of lower molds with vacuum adsorption. The insulating sleeves are pushed into the lower molds by a synchronous conveying belt and a push plate, and then fixed by vacuum adsorption. This negative pressure adsorption method is prone to cause position deviation or axial deviation of the insulating sleeves during rotation, positioning, or upper mold pressing of the hub. This directly leads to the situation that the sleeves are easily tilted, stuck, or even damaged when the steel bar is high-speed sleeved, reducing the processing qualification rate. More importantly, in this scheme, after the steel bar is sleeved with all the insulating sleeves, the steel bar needs to be detached from the hub mold by a pawl or its own gravity and transferred to the heat-shrinking furnace conveying chain below. During this detachment and transfer process, since the insulating sleeves have not been heat-shrunk and fixed, they can only rely on the weak friction force with the steel bar to maintain their position. Therefore, when impacted, vibrated, or rubbed against the inner wall of the mold, axial slippage of the steel bar is inevitable. This slippage can seriously damage the precise spacing set during pipe-sleeving, resulting in uneven positions of the sleeves on the final product. SUMMARY

[0004] In order to overcome the deficiencies of the prior art, one of the purposes of the present application is to provide an insulating sleeve arrangement and an insulating steel bar production line, which solves the technical problems of uneven arrangement, low precision, easy deviation and misplacement of the insulating sleeves during conveying and pipe-sleeving in the automatic production process of the existing insulating steel bars, and low qualification rate and poor production continuity of the finished products.

[0005] One of the purposes of the present application is achieved by using the following technical scheme:

[0006] An insulating sleeve arrangement comprises:

[0007] An insulating sleeve feeding structure is provided with an insulating sleeve delivery station and is configured to sequentially convey the insulating sleeves to the insulating sleeve delivery station.

[0008] The transfer structure comprises a conveying driving device and a conveying gripper unit, the conveying driving device is configured to drive the conveying gripper unit to reciprocate to transfer the insulating sleeve located on the insulating sleeve delivery station to a preset placement position;

[0009] The insulating sleeve limiting structure comprises a lifting device and a plurality of groups of limiting clamping units fixed to the lifting device, the limiting clamping units are arranged in a straight line at a preset interval, and the lifting device is configured to drive the limiting clamping units to move up and down.

[0010] The limiting clamping units are configured to receive and clamp the insulating sleeve transferred by the conveying gripper unit when rising to the preset placement position, so that the shaft centers of all clamped insulating sleeves are collinear to form a pipe passing channel for the steel bars to pass through.

[0011] On the basis of the above technical solutions, the present application is further described as follows:

[0012] A first rack; and

[0013] A plurality of groups of straight-vibration feeders arranged on the first rack, each group of the straight-vibration feeders is arranged at a preset interval along the steel bar conveying direction, each of the straight-vibration feeders is provided with a feeding track, and the end of the feeding track is provided with the insulating sleeve delivery station, and the upper side of the feeding track is provided with a sleeve conveying groove matched with the outer side of the insulating sleeve.

[0014] The insulating sleeve delivery station comprises a recess and an abutting portion, the abutting portion is arranged at the end of the sleeve conveying groove, and the recess is opened along the width direction of the feeding track and is crosswise communicated with the sleeve conveying groove.

[0015] As a further optimization of the present application, the conveying gripper unit comprises:

[0016] A rotating clamping assembly; and

[0017] Two groups of symmetrically arranged first clamping fingers, each group of the first clamping fingers comprises a connecting portion and a clamping portion, the connecting portion is fixedly connected with the movable end of the rotating clamping assembly, and the inner side of the clamping portion is provided with a clamping groove matched with the outer surface of the insulating sleeve.

[0018] The clamping groove is a non-complete semicircular arc structure, the two groups of first clamping fingers are butted to clamp the insulating sleeve, and a gap is left at the lower end of the clamping groove when clamping to form a semi-wrapping limiting for the insulating sleeve.

[0019] As a further optimization of the present application, each group of the limiting clamping units comprises:

[0020] Parallel gripper assembly; and

[0021] Two sets of second gripping fingers are symmetrically arranged at the movable end of the parallel gripper assembly. The inner side of the second gripping fingers is provided with a limiting groove. The two sets of second gripping fingers are joined together to form a limiting channel. The middle part of the second gripping fingers is provided with a transfer clearance groove. The transfer clearance groove is configured to extend from top to bottom to the lower middle part of the limiting groove to move the insulating sleeve to the limiting channel.

[0022] As a further optimization of the present invention, the front end of the second clamping finger is provided with a guide portion, the guide portion is provided with a semi-conical guide groove whose diameter gradually decreases along the direction of pushing the reinforcing bar, and the two sets of the second clamping fingers are joined together to form a conical guide channel, the guide channel being connected to the limiting channel.

[0023] The present invention also provides an insulated steel bar production line, including the aforementioned insulating sleeve arrangement device, and further comprising:

[0024] A rebar pushing structure is configured to push rebars sequentially through the pipe passage;

[0025] A conveying structure is configured to be partially disposed in the descending path of the limiting clamping unit to receive and convey the reinforcing bars passing through the insulating sleeve;

[0026] A heat-shrinkable structure is disposed on the steel bar conveying path of the conveying structure;

[0027] The control structure is electrically connected to the steel bar pushing structure, the conveying structure, and the heat-shrinkable structure.

[0028] As a further optimization of the present invention, the rebar pushing structure includes:

[0029] The second frame is provided with a rebar guide groove, which extends along the axial direction of the pipe passage;

[0030] The pushing unit includes a linear reciprocating device and a pushing component, wherein the pushing component is disposed at the movable end of the linear reciprocating device and is located at the end of the reinforcing bar guide groove away from the insulating sleeve limiting structure;

[0031] The feeding unit is configured to deliver individual steel bars to the steel bar guide groove.

[0032] As a further optimization of the present invention, the conveying structure includes:

[0033] The third frame is located on one side of the insulating sleeve limiting structure;

[0034] Several sets of traction conveying devices are set on the third frame. The traction direction of the traction conveying device is perpendicular to the axial direction of the steel bar after it passes through the pipe. The traction conveying device is provided with traction components arranged along the traction direction. The traction component is provided with a support groove that cooperates with the steel bar when it falls. The support position of the traction component and the steel bar is located between two adjacent sets of insulating sleeves.

[0035] Several sets of guide members are provided, each corresponding to an insulating sleeve and disposed on the third frame. Each guide member is provided with a guide groove extending along the traction direction of the traction conveying device. The inner wall of the guide groove is matched with the two ends of the corresponding insulating sleeve to limit the relative displacement of the insulating sleeve on the reinforcing bar.

[0036] As a further optimization of the present invention, a steel bar supply structure is also included, the steel bar supply structure comprising:

[0037] The fourth frame is located on one side of the second frame, and the fourth frame is equipped with a steel support platform with an inclined bearing surface;

[0038] A steel-separating device and a steel-laying device, the steel-separating device being configured to transport steel bars located on the steel bar bearing platform to the steel-laying device, the steel-laying device being configured to transport steel bars individually to the steel bar pushing structure.

[0039] As a further optimization of the present invention, a filtering structure is also included, the filtering structure comprising:

[0040] A detection device, which is located at the end of the traction conveying device, is used to detect whether the insulating sleeve on the steel bar is qualified;

[0041] The sorting device includes:

[0042] A fixed inclined frame is provided below the end of the traction conveying device, and the fixed inclined frame is gradually inclined downward from one end away from the traction conveying device to the other end.

[0043] A swinging inclined frame is disposed below the end of the fixed inclined frame away from the traction conveying device, and the middle of both ends of the swinging inclined frame are rotatably disposed on the fourth frame;

[0044] The second swing drive device is disposed on the fourth frame and is connected to and drives the swing inclined frame to rotate.

[0045] Receiving bins and unloading devices;

[0046] The swing bracket is configured as follows:

[0047] When the detection device detects that the steel bar is qualified, the end of the swinging inclined frame close to the fixed inclined frame is connected to the fixed inclined frame to form a continuous inclined guide surface, so as to guide the steel bar to move to the feeding device.

[0048] When the detection device detects that the steel bar is unqualified, the second swing drive device drives the swing inclined frame to swing. The end of the swing inclined frame close to the fixed inclined frame separates from the fixed inclined frame and guides the steel bar to move towards the receiving box.

[0049] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0050] 1. This invention enables the conveying of insulating sleeves from disordered to ordered states through an insulating sleeve feeding structure, providing an accurate clamping and positioning basis for the intermediate transfer conveying structure and avoiding clamping deviations caused by chaotic insulating sleeve postures. It also enables the transfer of insulating sleeves from a preset delivery station to a preset arrangement station and the adjustment of the insulating sleeve angle through the intermediate transfer conveying structure. Furthermore, by cooperating with the insulating sleeve limiting arrangement structure, it achieves positioning and clamping of the insulating sleeves on the limiting arrangement structure, thereby avoiding the problems of low positioning accuracy and poor adsorption stability when relying on vacuum adsorption for sleeve transfer in existing technologies. This ensures that all insulating sleeves are aligned coaxially, allowing the reinforcing bars to be inserted into all insulating sleeves at once, and preventing the insulating sleeves from shifting during the insertion process.

[0051] 2. This invention also utilizes a rebar supply structure to achieve a continuous rebar supply function, and leverages the connection and cooperation between the rebar supply structure and the rebar pushing structure to achieve the individual pushing of rebars one by one, avoiding pushing jams caused by stacking multiple rebars; it utilizes a conveying structure to achieve the function of receiving and further conveying the rebars after they have passed through the insulating sleeve limiting structure, and utilizes a heat-shrinking structure to achieve the function of heat-shrinking and fixing the insulating tube to the rebar during the conveying process, thereby completing the automated production process of insulated rebars. The rebar pushing structure enables the supply of individual rebars and the pushing of individual rebars along their axial preset direction, allowing the rebars to pass through the insulating sleeve on the insulating sleeve limiting structure, thereby replacing traditional manual or semi-automatic processes, significantly improving the production efficiency and processing accuracy of insulated rebars, and reducing quality fluctuations caused by manual intervention or the instability of rebar transfer and insertion due to vacuum adsorption and hub rotation in existing technologies. Attached Figure Description

[0052] Figure 1 This is a schematic diagram of the overall structure of the insulating sleeve arrangement device of the present invention;

[0053] Figure 2 This is a schematic diagram of the insulating sleeve feeding structure of the present invention;

[0054] Figure 3 This is a schematic diagram of the feeding device of the present invention;

[0055] Figure 4 This is a schematic diagram of the transfer drive unit structure of the present invention;

[0056] Figure 5 This is a schematic diagram of the insulating sleeve limited-displacement structure of the present invention;

[0057] Figure 6 This is a schematic diagram of the clamping unit structure of the present invention;

[0058] Figure 7 This is a schematic diagram of the second finger clamping result of the present invention;

[0059] Figure 8 This is a schematic diagram of the overall structure of the insulated steel bar production line of the present invention;

[0060] Figure 9 This is a schematic diagram of the overall steel bar pushing structure of the present invention;

[0061] Figure 10 This is a schematic diagram of the cooperation between the rebar pushing structure and the limiting clamping unit of the present invention;

[0062] Figure 11 This is a schematic diagram of the overall conveying structure of the present invention;

[0063] Figure 12 This is a schematic diagram of the traction conveying device of the present invention;

[0064] Figure 13 This is a schematic diagram of the traction component and guide component of the present invention;

[0065] Figure 14 This is a schematic diagram of the steel bar supply structure of the present invention;

[0066] Figure 15 This is a schematic diagram of the overall structure of the steel-laying device of the present invention.

[0067] In the picture:

[0068] 1-Insulating sleeve feeding structure; 11-First frame; 111-First support beam; 12-Feeding device; 121-Feeding track; 121a-Insulating sleeve delivery station; 121a1-Abutting part; 121a2-Allowing groove; 122-Sleeve conveying groove; 122a-Limiting groove; 122b-Photoelectric sensor.

[0069] 2-Transfer and conveying structure; 21-Conveying drive device; 211-Second support beam; 212-Transfer drive unit; 212a-Horizontal moving unit; 212a1-Horizontal mounting frame; 212a2-Horizontal linear guide rail; 212a3-Horizontal drive cylinder; 212b-Vertical lifting unit; 212b1-Vertical mounting frame; 212b2-Vertical linear guide rail; 212b3-Vertical drive cylinder; 22-Conveying gripper unit; 221-Rotary clamping assembly; 222-First gripping finger; 222a-Connecting part; 222b-Clamping part; 222b1-Clamping groove.

[0070] 3-Insulating sleeve limiting structure, 31-Lifting device, 311-Third support beam, 312-Lifting drive unit, 312a-Lifting cylinder, 312b-Lifting connecting seat, 312b1-Lifting guide rail structure, 32-Limiting clamping unit, 321-Parallel gripper assembly, 321a-Mounting support frame, 321b-Parallel gripper cylinder, 322-Second gripper finger, 322a-Limiting groove, 322b-Interchange clearance groove, 322c-Guide part, 322c1-Conical guide channel, 323-Buffer friction element, 33-Positioning stop, 331-First adjusting bolt;

[0071] 4- Rebar pushing structure; 41- Second frame; 411- Rebar guide groove; 411a- Linear baffle; 412- Guide frame; 412a- First inclined part; 412b- Second inclined part; 412c- Groove bending part; 412c1- Movable through-hole; 42- Pushing unit; 421- Linear reciprocating device; 421a- Linear rack; 421b- Drive gear; 421c- Linear guide rail; 421d- Slide table; 421d1- Support plate; 421d2- Connecting block; 421e- First motor; 422- Pushing component; 423- Elastic connection assembly; 423a- Second adjusting bolt; 423b- Spring; 423c- Sliding block; 43- Feeding unit; 431- Pushing cylinder; 432- Guide block; 44- Rebar straightening equipment.

[0072] 5-Conveying structure, 51-Third frame, 52-Traction conveying device, 521-Chain, 522-Head wheel, 523-Tail wheel, 524-Drive shaft, 525-First drive motor, 526-Traction support frame, 54-Traction component, 541-Support groove, 53-Guide component, 531-Guide groove

[0073] 6-Heat-shrink structure,

[0074] 7-Rebar supply structure, 71-Fourth frame, 711-Rebar bearing platform, 72-Steel separating device, 721-Rotating support frame, 722-Roller frame, 722a-Roller shaft, 722b-Circular plate, 722c-Magnetic plate, 73-Steel placement device, 731-Four support beams, 732-Oscillating drive motor, 733-Rotating shaft, 734-Arc-shaped limit assembly, 734a-Large arc-shaped component, 734b-Small arc-shaped component, 735-Rotating separation disc, 735a-Card slot, 736-Guide arm, 737-Oscillating switch assembly, 737a-Oscillating shaft, 737b-Blocking rod, 737c-First oscillating drive cylinder

[0075] 8-Screening structure, 81-Detection device, 811-Detection mounting bracket, 812-Color sensor,

[0076] 82-Sorting device, 821-Fixed inclined frame, 822-Swinging inclined frame, 822a-Swinging shaft, 823-Second swinging drive device, 824-Receiving bin, 825-Discharging device

[0077] 9-Control Structure. Detailed Implementation

[0078] Below, in conjunction with the appendix Figure 1 To be continued Figure 8 The present invention will be further described in detail below with specific implementation methods. It should be noted that, without conflict, the various embodiments or technical features described below can be arbitrarily combined to form new embodiments.

[0079] An insulating sleeve arrangement device and its insulating steel bar production line include an insulating sleeve feeding structure 1, a central transfer and conveying structure 2, an insulating sleeve limiting arrangement structure 3, a steel bar pushing structure 4, a conveying structure 5, a heat shrinking structure 6, a steel bar supply structure 7, a screening structure 8, and a control structure 9. The device is used to achieve the function of conveying insulating sleeves from disordered to ordered through the insulating sleeve feeding structure 1, providing an accurate clamping and positioning basis for the central transfer and conveying structure 2, avoiding clamping deviations caused by chaotic insulating sleeve postures. The device is also used to achieve the function of transferring insulating sleeves from a preset insulating sleeve delivery station 121a to a preset arrangement station and adjusting the angle of the insulating sleeves through the central transfer and conveying structure 2. Simultaneously, with the cooperation of the central transfer and conveying structure 2 and the insulating sleeve limiting arrangement structure 3, the device achieves positioning and clamping of the insulating sleeves on the insulating sleeve limiting arrangement structure 3, thereby avoiding the problems of low positioning accuracy and poor adsorption stability when relying on vacuum adsorption for sleeve transfer in the prior art. This ensures that all insulating sleeves are aligned coaxially, guaranteeing that all insulating sleeves can be inserted into the steel bars at once, and ensuring that the insulating sleeves do not shift during the insertion process.

[0080] Please refer to the attached document. Figure 1 Appendix Figure 2 and attached Figure 3The insulating sleeve feeding structure 1 includes a first frame 11 and several sets of feeding devices 12 disposed on the first frame 11. The feeding devices 12 may be, but are not limited to, direct vibration feeders. In this embodiment, the first frame 11 is fixedly provided with a first support beam 111. The first support beam 111 may be, but is not limited to, aluminum profile. Its length extension direction is parallel to the pre-pushing direction when the rebar is inserted into the pipe. Several sets of direct vibration feeders are arranged along the length extension direction of the first support beam 111, and each set of direct vibration feeders is fixed on the first support beam 111 in sequence at a preset interval. This is to directly match the preset installation position of the insulating sleeve on the rebar through the preset interval arrangement, without the need to adjust the spacing of the insulating sleeves before insertion into the pipe, thereby improving the positioning efficiency and accuracy before insertion into the pipe. In addition, the direct vibration feeder is fixed to the support beam by a connecting seat at its lower end, and a shock-absorbing pad is provided between the direct vibration feeder and its connecting seat to effectively absorb and isolate the high-frequency vibration generated when the direct vibration feeder is working, thereby preventing the vibration from being transmitted to the first frame 11, thus ensuring the operational stability of other components of the entire device.

[0081] Please refer to the attached document. Figure 3 The upper end of each of the vertical vibratory feeders is equipped with a feeding track 121. The feeding track 121 is perpendicular to the pre-pushing direction when the rebar is threaded through the pipe. The upper side of the feeding track 121 is provided with a sleeve conveying groove 122 that is adapted to the outer side of the insulating sleeve. The cross-sectional shape of the sleeve conveying groove 122 is a semi-arc that is adapted to the lower side of the insulating sleeve. This semi-arc adaptation forms a radial limit on the insulating sleeve, preventing the insulating sleeve from tipping over, shifting, or twisting during the conveying process, and ensuring the consistency of the conveying posture of the insulating sleeve. Irregularly arranged insulating sleeves are fed into the vertical vibratory feeder in batches. The feeding end, i.e. the end of the feeding track 121 away from the insulating sleeve limiting structure 3, can use, but is not limited to, a vibrating plate and an adsorption plate gripper to transport batches of heat shrink tubing to the feeding end of the direct vibration feeder. In this embodiment, a heat shrink tubing hopper is provided on one side of the first frame 11, and a batch of disordered insulating sleeves are stacked in the hopper. The adsorption plate gripper grabs the insulating sleeves in batches from the hopper through a negative pressure adsorption component such as a vacuum suction cup. With the help of a multi-axis drive structure, the grabbed disordered insulating sleeves are transferred to the feeding end of the feeding track 121. The insulating sleeves are gradually arranged into a single row of orderly arrangement in the feeding track 121 by vibration guidance.

[0082] Please continue to refer to the appendix. Figure 3To facilitate precise operation of the subsequent transfer and conveying structure 2, the end of the feeding track 121 is provided with an insulating sleeve delivery station 121a. In this embodiment, the insulating sleeve delivery station 121a includes an abutment part 121a1 and a clearance groove 121a2. The abutment part 121a1 is located at the discharge end of the sleeve conveying groove 122. In this embodiment, the abutment part 121a1 is a vertical baffle located at the end of the feeding track 121. The clearance groove 121a2 is a straight groove extending in the width direction on the upper side of the feeding track 121. The clearance groove 121a2 is perpendicular to and cross-connected with the sleeve conveying groove 122. When the insulating sleeve moves along the sleeve conveying groove 122 to the front end of the feeding track 121, and the foremost insulating sleeve abuts against the abutment part 121a1, the clearance groove 121a2 is located at the foremost... The middle part of the insulating sleeve is used to form a reserved lateral clamping space through the avoidance groove 121a2, so that the intermediate transfer and conveying structure 2 can stably extend into and clamp the insulating sleeve from the side of the groove, reducing structural interference during the clamping process and improving the success rate and reliability of the clamping action. The feeding track 121 located at the insulating sleeve delivery station 121a is also provided with a limiting groove 122a. The limiting groove 122a is located below the insulating sleeve that is stopped at the insulating sleeve delivery station 121a. The side wall of the limiting groove 122a is adapted and fitted to the outer wall of the insulating sleeve, thereby further ensuring the stability of the insulating sleeve when it moves to the insulating sleeve delivery station 121a. At the same time, a photoelectric sensor 122b can be provided at the bottom of the limiting groove 122a to detect whether the insulating sleeve is at the insulating sleeve delivery station 121a and whether the insulating sleeve has been clamped and removed, thereby ensuring the continuity and accuracy of the device operation.

[0083] Please refer to the attached document. Figure 1 and attached Figure 4 The intermediate transfer structure 2 includes a transfer drive device 21 and a transfer gripper unit 22. The transfer drive device 21 is configured to drive the transfer gripper unit 22 to reciprocate, so as to transfer the insulating sleeve located on the insulating sleeve delivery station 121a to a preset placement position. Specifically, the transfer drive device 21 includes a second support beam 211 and several sets of parallel transfer drive units 212. The second support beam 211 is fixedly set on the first frame 11 and located above the feeding device 12. The second support beam 211 is arranged parallel to the first support beam 111. Several sets of transfer drive units 212 are arranged along the length direction of the second support beam 211 at preset intervals. The distance between the transfer drive units 212 corresponds to the distance between the feeding devices 12, so as to realize the synchronous transfer operation of insulating sleeves on multiple delivery stations and ensure transfer efficiency.

[0084] Please continue to refer to the appendix. Figure 4 In this embodiment, each set of transfer drive units 212 includes a horizontal moving unit 212a and a vertical lifting unit 212b. The horizontal moving unit 212a includes a transverse mounting frame 212a1, a horizontal linear guide rail 212a2, and a horizontal drive cylinder 212a3. The transverse mounting frame 212a1 is fixedly mounted on the second support beam 211. The horizontal linear guide rail 212a2 is mounted on the transverse mounting frame 212a1. The extension direction of the horizontal linear guide rail 212a2 is perpendicular to the preset pushing direction of the reinforcing bar. A horizontal sliding seat is provided on the horizontal linear guide rail 212a2. The vertical lifting unit 212b is mounted on the front end of the horizontal sliding seat. The vertical lifting unit 212b is mounted on the horizontal drive cylinder 212a3. Driven by a3, the vertical lifting unit 212b moves horizontally along the horizontal linear guide rail 212a2. The vertical lifting unit 212b includes a vertical mounting frame 212b1, a vertical linear guide rail 212b2, and a vertical drive cylinder 212b3. The inner side of the vertical mounting frame 212b1 is fixedly connected to the mounting frame. The vertical drive cylinder 212b3 is mounted on the upper end of the vertical mounting frame 212b1. The vertical linear guide rail is mounted on the outer side of the vertical mounting frame 212b1. A vertical sliding seat is mounted on the vertical linear guide rail. The upper end of the conveying sliding seat is connected to the movable end of the vertical drive cylinder 212b3. The vertical sliding seat moves up and down along the vertical linear guide rail under the drive of the vertical drive cylinder 212b3. This vertical lifting unit 212b is used to adjust the height of the conveying gripper unit 22 in the vertical direction, adapting to the positional difference between the insulating sleeve delivery station 121a and the preset placement position.

[0085] Please continue attaching. Figure 3 and attached Figure 4The fixed end of the conveying gripper unit 22 is fixedly disposed on the outer side of the vertical sliding seat. Specifically, the conveying gripper unit 22 includes a rotary clamping assembly 221 and two sets of symmetrically arranged first gripping fingers 222. The rotary clamping assembly 221 can be, but is not limited to, an MRHQ rotary clamping cylinder from SMC, which has a combined rotation and clamping function. By means of the rotation function of the rotary clamping cylinder, the conveying gripper unit 22 clamps the insulating sleeve to move the insulating sleeve located at the insulating sleeve clamping position to a preset placement position. During the transfer, the insulating sleeve is rotated 90 degrees by the rotation function, so that the axial direction of the insulating sleeve is parallel to the pushing direction when the rebar is inserted into the pipe. The two sets of first gripping fingers 222 are respectively fixedly disposed on two sets of grippers on the rotary clamping cylinder. In this embodiment, each set of first gripping fingers 222 is fixedly disposed on two sets of grippers on the rotary clamping cylinder. The clamping fingers 222 include a connecting part 222a and a clamping part 222b. The connecting part 222a is fixedly connected to two sets of clamping jaws on the rotary clamping cylinder by bolts. The inner side of the clamping part 222b is provided with a clamping groove 222b1 that is adapted to the outer side of the insulating sleeve. The lower end of the clamping part 222b is flat. The clamping groove 222b1 is a non-complete semi-circular arc structure. The two sets of first clamping fingers 222 are connected to clamp the insulating sleeve. When clamping, a gap is left at the lower end of the clamping groove 222b1 to form a semi-enclosed limit on the insulating sleeve, so that it can be compatible with a certain range of sleeve diameter tolerances, improving the applicability of the device. Furthermore, when the insulating sleeve is placed and the clamping jaws are released, the reserved gap provides additional radial separation space, ensuring that the clamping jaws can quickly and without interference separate from the insulating sleeve, thus improving the unloading efficiency.

[0086] Please refer to the attached document. Figure 2 and attached Figure 5 The insulating sleeve limiting structure 3 includes a lifting device 31 and several sets of limiting clamping units 32 fixed to the lifting device 31. The limiting clamping units 32 are arranged in a straight line at a preset interval. The lifting device 31 is configured to drive all the limiting clamping units 32 to move up and down synchronously. Specifically, the lifting device 31 includes a third support beam 311 and several sets of lifting drive units 312. The lifting drive unit 312 includes a lifting cylinder 312a and a lifting connecting seat 312b. The fixed end of the lifting cylinder 312a is fixedly installed on the ground or the first frame. 11. The movable end of the lifting cylinder 312a is connected to the lifting connecting seat 312b. The vertical side of the lifting connecting seat 312b is provided with a lifting guide rail structure 312b1. The lifting connecting seat 312b is slidably connected to the first frame 11 through the lifting guide rail structure 312b1. Specifically, the upper end of the lifting connecting seat 312b is fixedly connected to a third support beam 311. The third support beam 311 is arranged along the axial movement direction of the reinforcing bar. The limiting clamping unit 32 is arranged along the extension direction of the third support beam 311.

[0087] Please refer to the attached document. Figure 5 and Figure 6 The limiting clamping unit 32 is configured to receive and clamp the insulating sleeves transferred by the conveying clamping unit 22 when it rises to a preset placement position, so that the axes of all clamped insulating sleeves are collinear. The height of the limiting clamping unit 32 is adjusted by the lifting device 31 to be consistent with the pushing direction of the rebar when it is inserted into the pipe, forming a pipe-insertion channel for the rebar to pass through. Specifically, the limiting clamping unit 32 includes a parallel gripper assembly 321 and two sets of second gripping fingers 322 symmetrically arranged at the movable end of the parallel gripper assembly 321. The parallel gripper assembly 321 includes an installation support frame 321a arranged at the preset interval and a parallel gripper cylinder 321b arranged on the installation support frame 321a. Each set of the limiting clamping unit 32 corresponds one-to-one with the conveying clamping unit 22. The opening and closing direction of the grippers on the parallel gripper cylinder 321b is perpendicular to the pre-pushing direction of the rebar when it is inserted into the pipe. In addition, the limiting clamping unit 32 also includes a positioning stop 33. The positioning stop 33 is set at the end of the pre-pushing direction when the rebar is inserted into the pipe. Its specific installation position is preferably on the mounting support frame 321a of the set of limiting clamping units 32 farthest from the rebar pushing structure 4, or directly installed at the end of the third support beam 311. In this embodiment, the positioning stop 33 includes a vertical baffle and a first adjusting bolt 331 rotatably set on the vertical baffle. The axis of the first adjusting bolt 331 is consistent with the axis of the pipe insertion channel, so as to adjust its extension length by rotating the first adjusting bolt 331, accurately positioning the end position of the rebar insertion into the pipe, and avoiding excessive insertion of the rebar into the pipe, which would cause the end to exceed the preset range.

[0088] Please continue to refer to the appendix. Figure 6 and attached Figure 7 The second gripper 322 is symmetrically arranged with respect to the gripper corresponding to the parallel gripper cylinder 321b. The inner side of the second gripper 322 is provided with a limiting groove 322a with a semi-circular cross-section. The two sets of second grippers 322 are joined together to form a limiting channel with the two sets of limiting grooves 322a. The limiting channel passes through the second gripper 322 along the pre-pushing direction when the rebar is inserted into the pipe. The inner diameter of the limiting channel is adapted to the outer diameter of the insulating sleeve to achieve radial limiting and axial positioning of the insulating sleeve through circumferential covering. The second gripper 322 is provided with a junction clearance groove 322b in the middle. The junction clearance groove 322b is constructed to extend from top to bottom to the lower middle part of the limiting groove 322a to move the insulating sleeve into the limiting channel. The width of the handover clearance groove 322b is sufficient to accommodate the first clamping finger 222 of the clamping and conveying unit, thereby realizing the handshake-style material handover between the first clamping finger 222 and the second clamping finger 322, ensuring the stability and alignment accuracy of the insulating sleeve transfer process.

[0089] Please continue to refer to the appendix. Figure 6 and attached Figure 7 The second clamping finger 322 has a guide portion 322c at its front end facing the direction of rebar insertion. The guide portion 322c has a semi-conical guide groove with a diameter that gradually decreases along the direction of rebar pre-pushing. Two sets of second clamping fingers 322 are joined to form a conical guide channel 322c1 with a wide inlet and a narrow outlet. The guide channel is connected to the limiting channel, and the inlet diameter of the conical guide channel 322c1 is larger than the diameter of the limiting groove 322a. This provides an automatic centering guide function for rebars inserted at high speed. With its gradually changing diameter structure, even if there is a slight positional deviation at the head of the rebar, it can still be guided to the center of the limiting channel, significantly improving the success rate of pipe insertion.

[0090] Please continue to refer to the appendix. Figure 6 and attached Figure 7 A buffer friction element 323 is also provided between the two second gripping fingers 322. The buffer friction element 323 may be, but is not limited to, a rubber pad. The two ends of the rubber pad are respectively connected to the upper ends of the two sets of second gripping fingers 322. The rubber pad fits and covers the inner side of the second gripping fingers 322, and the rubber pad has an indentation that matches the junction clearance groove 322b. In this embodiment, when the second gripping fingers 322 are in the open state, the buffer friction element 323 is stretched and unfolded accordingly. The unfolded rubber pad is butterfly-shaped, forming a... A wide receiving inlet facilitates the entry and support of the insulating sleeve. When the second clamping finger 322 closes to hold the insulating sleeve, the buffer friction element 323 retracts inward, deforms, and encloses a complete tubular flexible interlayer. The inner diameter of this interlayer matches the outer diameter of the insulating sleeve. With the help of the elasticity of the rubber material, the buffer friction element 323 can automatically compensate for the diameter tolerance of the insulating sleeve. The flexible interlayer can play a buffering and damping role, quickly absorb and dissipate the impact energy, and prevent the insulating sleeve from shifting or being damaged due to impact, further ensuring the positional accuracy of the insulating sleeve during the tube insertion process.

[0091] This invention also provides an insulated steel bar production line, please refer to the appendix. Figure 8It includes the aforementioned insulating sleeve arrangement device, as well as a rebar pushing structure 4, a conveying structure 5, a heat-shrinking structure 6, a rebar supply structure 7, a screening structure 8, and a control structure 9. After the rebar passes through the tube-through channel, the lifting device 31 drives the clamping unit to move downwards following the third support beam 311. When the limiting clamping unit 32 descends to the vicinity of the conveying chain device, the limiting clamping unit 32 opens, and the rebar falls onto the conveying structure 5, conveying the tube-through rebar to the next processing station. The rebar supply structure 7 enables continuous rebar supply, and the connection and cooperation between the rebar supply structure 7 and the rebar pushing structure 4 enables the pushing of individual rebars one by one, avoiding pushing jams caused by stacking multiple rebars. The conveying structure 5 enables the receiving and further conveying of the tube-through rebars on the insulating sleeve limiting arrangement structure 3, and the heat-shrinking structure 6 enables the heat-shrinking and fixing of the insulating tube on the rebar during the conveying process, thereby completing the automated production process of the insulating rebar. This is used to supply individual steel bars and push them along their axial direction in a preset direction to pass them through the insulating sleeve on the insulating sleeve limiting structure 3. This replaces traditional manual or semi-automatic processes, significantly improving the production efficiency and processing accuracy of insulating steel bars, and reducing quality fluctuations caused by instability in steel bar transfer and insertion due to vacuum adsorption and hub rotation in existing technologies.

[0092] Please refer to the attached document. Figure 9 and attached Figure 10 The rebar pushing structure 4 is configured to push rebars sequentially through the pipe-passing channel. Specifically, the rebar pushing structure 4 includes a second frame 41, a pushing unit 42, and a feeding unit 43. The second frame 41 is located on the entry side of the first frame 11 in the pushing direction when the rebar is passed through the pipe. The upper side of the second frame 41 is provided with a rebar guide groove 411. The rebar guide groove 411 is arranged parallel to the axial direction of the pipe-passing channel, so that the central axis of the rebar guide groove 411 is aligned and concentric with the axis of the pipe-passing channel formed by the insulating sleeve in the limiting clamping unit 32 that has risen to the corresponding specified height. The end of the rebar guide groove 411 near the first frame 11 is open, so as to facilitate the rebar to be pushed out of the rebar guide groove 411. With the help of the pushing unit 42, the rebar passing through the pipe is realized.

[0093] Please continue to refer to the appendix. Figure 9 and attached Figure 10In this embodiment, the rebar guide groove 411 extends along the length direction of the second frame 41. A guide frame 412, extending along and connected to the length direction of the second frame 41, is provided on its side for receiving the rebar provided by the rebar supply structure 7 and transferring it into the rebar guide groove 411. The guide frame 412 is generally elongated and includes a first inclined portion 412a, a second inclined portion 412b, and a grooved bending portion 412 disposed between the first inclined portion 412a and the second inclined portion 412b. c. A vertical mounting plate is bent at the inner end of the long side of the first inclined portion 412a. This vertical mounting plate is connected to the upper side of the second frame 41. A straight baffle 411a, parallel to the vertical mounting plate, is provided on one side of the second frame 41. The straight baffle 411a is fixed to the second frame 41. The inner side of the straight baffle 411a and the inner side of the vertical mounting plate form the rebar guide groove 411, which is used to laterally limit the rebar through the cooperation of the vertical mounting plate and the straight baffle 411a. In some embodiments, the rebar guide groove 411 is also provided with a proximity switch.

[0094] Please continue to refer to the appendix. Figure 9 and attached Figure 10 The second inclined portion 412b is used to receive a single steel bar provided from the steel bar supply structure 7. The single steel bar is guided by the second inclined portion 412b into the grooved bending portion 412c. The feeding unit 43 is disposed on one side of the second frame 41. The feeding unit 43 is configured to transport the single steel bar located in the grooved bending portion 412c to the steel bar guide groove 411. Specifically, the feeding unit 43 includes a plurality of push cylinders 431 and guide blocks 432 disposed at the movable end of the push cylinders 431. The push cylinders 431 are arranged in an array below the guide frame 412 along the length direction of the grooved bending portion 412c. The fixed end of the push cylinder 431 is fixed to the second frame. 41. The movable end of the pushing cylinder 431 is raised and lowered below the grooved bending portion 412c. The grooved bending portion 412c has several sets of movable through-holes 412c1 for the guide block 432 to pass through. The movable through-holes 412c1 are partially opened at the outer end of the first inclined portion 412a. The upper end of the guide block 432 is set as an inclined surface. Driven by the pushing cylinder 431, the guide block 432 is raised and lowered between the bottom of the groove of the grooved bending portion 412c and the upper end face of the first inclined portion 412a. This is used to lift the reinforcing bar through the guide block 432, so as to realize the transfer of the reinforcing bar from the grooved bending portion 412c to the reinforcing bar guide groove 411, ensuring the automation and continuity of the feeding process.

[0095] In some embodiments, the second frame 41 is further provided with a rebar straightening device 44, which uses the grooved bending part 412c to limit the rebar and achieve the straightening function of the rebar by rotation, so as to ensure the straightness of the rebar when passing it through the pipe.

[0096] Please continue to refer to the appendix. Figure 9 and attached Figure 10 The reinforcing bars located in the reinforcing bar guide groove 411 are pushed through the pipe by the pushing unit 42. The pushing unit 42 includes a linear reciprocating device 421 and a pushing member 422. The pushing member 422 is disposed at the movable end of the linear reciprocating device 421 and is located at the end of the reinforcing bar guide groove 411 away from the insulating sleeve limiting structure 3. Specifically, the linear reciprocating device 421 may adopt, but is not limited to, a ball screw module and a gear rack structure. In this embodiment, the linear reciprocating device 421 includes a linear rack 421a, a drive gear 421b cooperating with the linear rack 421a, a linear guide rail 421c, a slide table 421d slidingly cooperating with the linear guide rail 421c, and a first motor 421e. The upper end of the slide table 421d is provided with a support plate 421d1. The first motor 421e 21e is fixedly installed above one end of the support plate 421d1, and the output shaft of the first motor 421e is vertically rotatably installed below the support plate 421d1. The output shaft of the first motor 421e is rotatably connected to the drive gear 421b. The linear rack 421a is installed on one side of the second frame 41 located on the rebar guide groove 411, and the extension direction of the linear rack 421a is parallel to the extension direction of the rebar guide groove 411. The linear guide rail 421c is installed between the linear rack 421a and the rebar guide groove 411, so as to drive the drive gear 421b to rotate through the first motor 421e to drive the slide table 421d to reciprocate along the linear guide rail 421c, thereby realizing the linear pushing action of the pusher 422.

[0097] Please continue to refer to the appendix. Figure 9 and attached Figure 10The pushing member 422 is disposed on the support plate 421d1 of the slide table 421d. The pushing member 422 may be, but is not limited to, a cylindrical rod. The cylindrical rod is slidably disposed on the rebar guide groove 411, and the axial direction of the cylindrical rod is consistent with the axis of the rebar guide groove 411. The front end of the cylindrical rod abuts against the rebar moved into the rebar guide groove 411, and the rear end of the cylindrical rod is connected. Specifically, a connecting block 421d2 is provided at one end of the support plate 421d1 near the guide groove 531. An elastic connecting component 423 is provided at the end of the connecting block 421d2. In this embodiment, the elastic connecting component 423 includes two sets of second adjusting bolts 423a, springs 423b, and springs 423b arranged parallel to each other on the connecting block 421d2. The sliding block 423c is arranged parallel to the length direction of the second adjusting bolt 423a in the axial direction of the second adjusting bolt 423a. Each set of second adjusting bolts 423a has a spring 423b nested on its outer side. The sliding block 423c is slidably disposed on the stud of the second adjusting bolt 423a. The two ends of the spring 423b abut against the ends of the sliding block 423c and the connecting block 421d2, respectively. The outer side of the sliding block 423c abuts against the head of the second adjusting bolt 423a. The lower end of the sliding block 423c has a sliding part that slides against the inner wall of the rebar guide groove 411. The sliding part is fixedly connected to the end of the column rod to avoid damage caused by rigid pushing and to ensure the safety of the pipe threading process.

[0098] Please refer to the attached document. Figure 11 and attached Figure 12The conveying structure 5 is partially positioned along the descent path of the limiting clamping unit 32 to receive and convey the reinforcing bars passing through the insulating sleeve in the structure. Specifically, the conveying structure 5 includes a third frame 51, several sets of traction conveying devices 52, and several sets of guides 53. The frame is positioned on the side of the first frame 11 near the insulating sleeve limiting structure 3. Several sets of traction conveying devices 52 are arranged on the third frame 51 along the reinforcing bar pushing direction. The traction direction of the traction conveying devices 52 is perpendicular to the axial direction of the reinforcing bar after it passes through the pipe, so as to achieve stable bearing of the long strip reinforcing bars during the conveying process through multi-point support. The traction conveying devices 52 can be, but are not limited to, chain conveyors, servo slide modules, and synchronous belt conveyors. In this embodiment, the traction conveying device 52 is a chain conveyor, which is provided in four sets. Each set of chain conveyors includes a chain 521, a head wheel 522, and a tail wheel 523. The tail wheels 523 of each set of chain conveyors are connected by a common drive shaft 524, which is driven to rotate by a first drive motor 525, thereby realizing the synchronous rotation of the four sets of tail wheels 523. The tail wheels 523 drive the four sets of chains 521 to move synchronously, ensuring that the steel bars maintain a synchronous conveying speed during the conveying process. The head wheels 522 are all located at the front end of the third frame 51. The third frame 51 is provided with a traction bearing frame 526 for installing the head wheels 522 and the tail wheels 523, and the third frame 51 is provided with a tensioning mechanism that cooperates with the chain conveyor. The head wheels 522 are located above the third support beam 311 to receive the steel bars falling from the limiting clamping unit 32.

[0099] Please refer to the attached document. Figure 13 The traction member 54 is arranged along the traction direction of the traction conveying device 52. The traction member 54 is provided with a support groove 541 that cooperates with the support of the steel bar when it falls, and the support position of the traction member 54 and the steel bar is located between two adjacent sets of insulating sleeves. Specifically, the traction member 54 is configured as a plate. One end of the traction member 54 is provided with two sets of mounting holes for fixing to the chain 521 through the mounting holes. The other end of the traction member 54 is provided with a support groove 541. The support groove 541 can be, but is not limited to, a V-shaped groove and a U-shaped groove. The support groove 541 located above the chain 521 has its opening facing upward, so as to realize radial limiting and axial traction of the steel bar.

[0100] Please continue to refer to the appendix. Figure 13The guide member 53 corresponds one-to-one with the insulating sleeve and is disposed on the third frame 51. The guide member 53 is provided with a guide groove 531 extending along the traction direction of the traction conveying device 52. The inner wall of the guide groove 531 is matched with the two ends of the corresponding insulating sleeve to limit the relative displacement of the insulating sleeve on the reinforcing bar. The guide member 53 is provided with at least two mutually parallel limiting walls forming long grooves. The guide member 53 can be, but is not limited to, an integrally bent metal U-shaped groove or a plastic U-shaped groove. The distance between the inner surfaces of the two limiting walls is slightly larger than the nominal length of a single insulating sleeve. In this embodiment, the distance between the two limiting walls is 0.5 mm to 1 mm larger than the sleeve length. The guide groove 531 is fixed to the third frame 51 by its own bottom surface and is located below the conveyed reinforcing bar. The front end of the limiting wall is also provided with an inlet slope or a flared mouth to provide automatic centering and inlet function for the insulating sleeve to enter through a progressive guide contour.

[0101] Please continue to refer to the appendix. Figure 14 The rebar supply structure includes a fourth frame 71, a steel distribution device 72, and a steel placement device 73. Specifically, the fourth frame 71 is located on one side of the guide frame 412 near the second frame 41. The fourth frame 71 is provided with a rebar support platform 711 with an inclined bearing surface. In this embodiment, the rebar support platform 711 includes several sets of inclined bearing columns and a support column connecting the bearing columns and the fourth frame 71. The rebar slides along the higher end of the bearing column to the lower end. The steel distribution device 72 is located at the lower end of the rebar support column.

[0102] Please continue to refer to the appendix. Figure 14The steel placement device 73 and the rebar support platform 711 are respectively disposed on both sides of the steel distribution device 72. The steel distribution device 72 is configured to transport the rebars located on the rebar support platform 711 to the steel placement device 73. In this embodiment, the steel distribution device 72 includes a rotating support frame 721 and a roller frame 722 rotatably disposed on the rotating support frame. The rotating support frame 721 includes two sets of bearing seats, which are respectively fixedly disposed on the upper side of the fourth support on both sides of the lower end of the support column. The roller frame 722 includes a roller shaft 722a rotatably disposed between the two sets of bearing seats, two sets of circular plates 722b disposed on the roller shaft 722a, and a magnetic plate 722c disposed between the two sets of circular plates 722b. The circular plates 722b rotate coaxially with the roller shaft 722a, and the distance between the circular plates 722b is less than the length of the reinforcing bar. This is to allow the outer edge of the circular plates 722b to abut against the reinforcing bar sliding along the bearing column, preventing the reinforcing bar from slipping off the bearing column. At least one set of magnetic plates 722c is provided. In this embodiment, two sets of magnetic plates 722c are provided and symmetrically arranged between the two sets of circular plates 722b. The magnetic plates 722c are configured with a straight surface structure. The outer edge of the circular plates 722b is provided with a straight edge that matches the magnetic plates 722c. The distance between the two straight edges is less than the length between the circular plates 722b. This is to allow the magnetic plates 722c to attract the reinforcing bar, and in conjunction with the rotation of the circular plates 722b, transfer the reinforcing bar to the steel distribution device 73, thus achieving preliminary steel distribution.

[0103] Please continue to refer to the appendix. Figure 14 and attached Figure 15The steel placement device 73 is configured to convey steel bars to the steel bar pushing structure 4 in a single form. Specifically, the steel placement device 73 includes a fourth support beam 731, a swing drive motor 732, a rotating shaft 733, an arc-shaped limiting component 734, a rotating separation disc 735, a guide arm 736, and a swing switch component 737. Specifically, the swing drive motor 732 is fixedly mounted on the fourth frame 71, and its output shaft is connected to the rotating shaft 733 via a coupling. The swing drive motor 732 can drive the rotating shaft 733 to rotate synchronously. The rotating shaft 733 extends along the width direction of the fourth frame 71 and is located below the side of the roller shaft 722a away from the steel bar support platform 711. The fourth support beam 731 is arranged above the rotating shaft 733. The arc-shaped limiting component 734 includes a large arc-shaped component 734a and a small arc-shaped component 734b. Several sets of the large arc-shaped components 734a are arranged along the fourth support beam 731. In this embodiment, the large arc-shaped component 734a is plate-shaped, and its lower end has an arc-shaped groove with an opening facing downwards. The small arc-shaped component 734b is arranged along the extension direction of the rotation axis 733. The outer part of the small arc-shaped component 734b is set as arc. In this embodiment, there are two sets of small arc-shaped components 734b. The distance between the two sets of small arc-shaped components 734b is less than the length of the steel bar, so as to achieve the abutment support of the steel bar through the outer part of the two small arc-shaped components 734b. The arc center of the large arc-shaped component 734a and the small arc-shaped component 734b is the rotation axis 733. The arc diameter of the small arc-shaped component 734b is smaller than the arc diameter of the large arc-shaped component 734a. When viewed from the side, the large arc-shaped component 734a and the small arc-shaped component 734b form an arc-shaped limiting space extending along the diameter direction of the steel bar, so as to achieve radial limiting and guiding movement of a single steel bar through the arc-shaped limiting space. A rotating separation disk 735 is installed in the middle of the rotating shaft 733. The rotating separation disk 735 has multiple locking slots 735a along the circumferential direction, and the locking slots 735a are distributed at equal angles along the circumference. When the rotating plate rotates under the drive of the rotating shaft 733, the steel bars located below it are locked into the locking slots 735a one by one, forming a single-bar separation state, and move along the arc-shaped limiting space synchronously with the rotating plate.

[0104] Please continue to refer to the appendix. Figure 14 and attached Figure 15The guide arms 736 are arranged in an array along the axial direction of the rotating shaft 733 below the side of the roller shaft 722a away from the rebar support platform 711. The upper side of the guide arms 736 is generally inclined. The front end of the guide arm 736 extends into the rotation path of the circular plate 722b. Its front end is used to block the rebar attracted by the magnetic plate 722c. When the circular plate 722b rotates counterclockwise, the rebar is blocked and detached from the magnetic plate 722c. The rebar then slides along the upper side of the guide arm 736, passes through the middle of the guide arm 736, and is blocked by the rotating separation disk 735. A bending buffer angle is provided at the point in the guide arm 736 where the rebar is blocked by the rotating separation disk 735. The rebar is concentrated at this bending buffer angle. The lower end of the guide arm 736 passes through the lower middle part of the rotating separation disk 735 through this bending buffer angle. After the arc-shaped limiting space moves the steel bar, it touches the lower end of the guide arm 736 after rotating counterclockwise. Under the action of gravity, the steel bar slides down the upper side of the guide arm 736.

[0105] Please continue to refer to the appendix. Figure 14 and attached Figure 15 The lower end of the guide arm 736 is provided with the swing switch assembly 737 to achieve release control of a single rebar. The swing switch assembly 737 includes a swing shaft 737a, several sets of blocking rods 737b, and a first swing drive cylinder 737c. The swing shaft 737a is arranged along the direction of the guide arm 736 and rotatably mounted between the swing supports on both sides of the fourth frame 71. Its position is higher than the lower end of the guide arm 736 and lower than the lower edge of the large arc-shaped component 734a. Connecting arms are connected to both ends of the swing shaft 737a, and the lower end of the connecting arms is connected to the movable end of the first swing drive cylinder 737c. The extension and retraction action of the first swing drive cylinder 737c drives the swing shaft 737a to rotate at an angle, thereby driving the blocking rods 737b to achieve lifting and lowering switching. In the default closed state, the front end of the blocking rod 737b abuts against the lower end of the guide arm 736 to prevent the rebar from sliding down. When the first swing drive cylinder 737c extends to the open state, the front end of the blocking rod 737b is lifted, and the rebar slides away from the end of the guide arm 736 and falls into the rebar pushing structure 4, realizing the directional conveying of a single rebar. With the help of this rebar sorting and distribution device 73, the fully automatic process of rebar feeding from a stacked state to a single directional rebar is realized, effectively solving the problems of low efficiency and easy overlap and jamming in traditional manual rebar sorting, and ensuring the continuous feeding and automation cycle stability of the rebar pushing structure 4.

[0106] Please continue to refer to the appendix. Figure 11 and attached Figure 12The screening structure 8 includes a detection device 81 and a sorting device 82. Specifically, the detection device 81 is located at the end of the traction conveying device 52 and is used to detect whether the insulating sleeve on the rebar is qualified. The detection device 81 includes a detection mounting frame 811 and several sets of color sensors 812. In this embodiment, the detection mounting frame 811 is fixedly installed above the traction conveying device 52. The color sensors 812 are arranged along the axial direction of the rebar and correspond one-to-one with the fixed positions of the insulating sleeve on the rebar. They are used to determine whether the insulating sleeve is installed on the rebar through color recognition. If a color signal of the insulating sleeve is detected at the corresponding position, it is determined to be qualified. If no color signal is detected, it is determined that the insulating sleeve is missing, thereby detecting whether the insulated rebar is qualified. The rebar after passing through the detection device 81 is quickly conveyed to the sorting device 82 by the traction conveying device 52.

[0107] Please continue to refer to the appendix. Figure 11 and attached Figure 12 The sorting device 82 includes a fixed inclined frame 821, a swing inclined frame 822, a second swing drive device 823, a receiving box 824, and a feeding device 825. Specifically, the fixed inclined frame 821 is located below the end of the traction conveyor 52, and the fixed inclined frame 821 is gradually inclined downward from one end away from the traction conveyor 52 to the other end. In this example, the fixed inclined frame 821 is fixed to the end of the traction support frame 526 near the tail wheel 523, and is used to receive the reinforcing bars that have detached from the tail wheel 523. The end of the fixed inclined frame 821 near the tail wheel 523 is higher than the end away from the tail wheel 523. The reinforcing bar moves along the fixed inclined frame 821 to the swing inclined frame 822. The swing inclined frame 822 is located below the end of the fixed inclined frame 821 away from the traction conveying device 52. The middle of both ends of the swing inclined frame 822 is rotatably mounted on the fourth frame 71. The swing of the swing inclined frame 822 is driven by the second swing driving device 823. The second swing driving device 823 is mounted on the fourth frame 71 and is connected to and drives the swing inclined frame 822 to rotate.

[0108] In this embodiment, the second swing drive device 823 includes a linear cylinder. A swing shaft 822a is provided below the middle of the swing inclined frame 822. The swing inclined frame 822 swings and rotates around the swing shaft 822a as the axis. The linear cylinder is connected to the lower part of the end of the swing inclined frame 822 near the fixed inclined frame 821. The upper end of the linear cylinder is rotatably connected to the lower left end of the swing inclined frame 822. The lower end of the linear cylinder is rotatably connected to the third frame 51. The third frame 51 is provided with a rotating connecting seat connected to the lower end of the linear cylinder, so as to drive the swing inclined frame 822 to swing around the swing shaft 822a by the extension and retraction of the linear cylinder.

[0109] Please continue to refer to the appendix. Figure 12 The receiving box 824 and the unloading device 825 are respectively located on the left and right sides of the swinging inclined frame 822. The swinging inclined frame 822 is configured such that when the detection device 81 detects that the steel bar is qualified, the swinging inclined frame 822 maintains its state and the end of the swinging inclined frame 822 near the fixed inclined frame 821 is connected to the fixed inclined frame 821 to form a continuous inclined guide surface, so as to guide the steel bar to move to the unloading device 825; when the detection device 81 detects that the steel bar is unqualified, the second swing driving device 823 drives the swinging inclined frame 822 to swing to form a left tilt state, the end of the swinging inclined frame 822 near the fixed inclined frame 821 separates from the fixed inclined frame 821, and guides the steel bar to move towards the receiving box 824. The steel bar entering the receiving box 824 can be moved out from under the fourth frame 71 through the pulley at the lower end of the receiving box 824.

[0110] Please continue to refer to the appendix. Figure 9 The control structure 9 is electrically connected to the insulating sleeve feeding structure 1, the intermediate transfer and conveying structure 2, the insulating sleeve limiting structure 3, the rebar pushing structure 4, the conveying structure 5, the heat shrinking structure 6, the rebar supply structure, and the screening structure 8, respectively. The control structure 9 is fixedly installed on one side of the third frame 51 and the fourth frame 71, and is used to coordinate the operation sequence of each component to realize the fully automated control of the entire process of insulating rebar sorting, rebar supply, rebar threading and conveying, heat shrinking and fixing of insulating sleeves on rebars, and screening.

[0111] Specifically, the control structure 9 includes an electronic control module, a control panel, and a touch screen; wherein, the electronic control module includes a mobile power supply and a control module connected by a circuit; the mobile power supply may be, but is not limited to, a lithium battery; the control module may be, but is not limited to, a Siemens S7-1200 series PLC, an AT80C51 microcontroller control board, or an STM32 microcontroller; the touch screen may be, but is not limited to, an industrial touch screen display of model G530AL; the control output terminal of the control module is connected to several sets of relays via a circuit. At the input end of the device, the relay may be, but is not limited to, an 8-pin relay of model UD2-4.5NU. Its output end is connected to the direct vibration feeder of the insulating sleeve feeding structure 1, the horizontal drive cylinder 212a3 and vertical drive cylinder 212b3 of the intermediate transfer conveying structure 2, the rotary clamping assembly 221, the lifting cylinder 312a and parallel gripper cylinder 321b of the insulating sleeve limiting structure 3, the pushing cylinder 431 of the rebar pushing structure 4, the first motor 421e; the first drive motor 525 of the conveying structure 5; and the heat shrinking structure 6 and the rebar supply structure through circuits.

[0112] Meanwhile, the relay output terminal is also connected to the signal output terminals of the photoelectric sensor 122b of the insulating sleeve feeding structure 1, the displacement sensor of the insulating sleeve limiting structure 3, the proximity switch of the rebar pushing structure 4, and the detection device 81 of the screening structure 8 through circuit connection. This is used to realize the start and stop of each execution component and the control of the operating parameters through the relay; to realize the extension or opening and closing of the cylinder through the connection of the relay with the solenoid valve of each cylinder; and to collect data such as the material status of the insulating sleeve delivery station 121a, the lifting height of the limiting clamping unit 32, the feeding status of the rebar guide groove 411, and the qualified test results of the insulating sleeve in real time through the control module, and transmit the data to the touch screen for display.

[0113] The control panel and the touch screen are respectively connected to the control input terminal of the control module via circuitry. The control panel is equipped with an emergency stop button, a start button, a stop button, and independent control buttons for each structure. This allows for inputting basic control commands through the control panel or adjusting parameters such as insulation sleeve spacing, rebar pushing speed, and heat shrinking temperature through the touch screen, further automating the overall architecture's operation and control. Simultaneously, the touch screen can monitor the operating status of each structure in real time, triggering an alarm when a fault is detected, facilitating rapid problem diagnosis.

[0114] In some embodiments, the control structure 9 may also integrate a communication module, such as an Ethernet module or a GPRS communication element, to enable data interaction between the production line and the host system, and to perform remote monitoring and production management.

Claims

1. An insulating sleeve arrangement device, characterized in that, include: The insulating sleeve feeding structure (1) is provided with an insulating sleeve delivery station (121a) and is configured to sequentially transport insulating sleeves to the insulating sleeve delivery station (121a). The intermediate transfer structure (2) includes a conveying drive device (21) and a conveying gripper unit (22). The conveying drive device (21) is configured to drive the conveying gripper unit (22) to reciprocate so as to transfer the insulating sleeve located on the insulating sleeve delivery station (121a) to a preset placement position. The insulating sleeve limiting structure (3) includes a lifting device (31) and a number of limiting clamping units (32) fixed to the lifting device (31). The limiting clamping units (32) are arranged in a straight line at a preset interval. The lifting device (31) is configured to drive the limiting clamping units (32) to move up and down. The limiting clamping unit (32) is configured to receive and clamp the insulating sleeve transferred by the conveying clamping unit (22) when it rises to the preset placement position, so that the axes of all the clamped insulating sleeves are collinear, forming a pipe passage for the reinforcing bar to pass through. The insulating sleeve feeding structure (1) includes: First rack (11); and Several sets of direct vibrating feeders are set on the first frame (11). Each set of direct vibrating feeders is arranged at a preset interval along the direction of steel bar conveying. Each direct vibrating feeder is provided with a feeding track (121). The end of the feeding track (121) is provided with the insulation sleeve delivery station (121a). The upper side of the feeding track (121) is provided with a sleeve conveying groove (122) that is adapted to the outer side of the insulation sleeve. The insulating sleeve delivery station (121a) includes a clearance groove (121a2) and an abutment part (121a1). The abutment part (121a1) is located at the end of the sleeve conveying groove (122). The clearance groove (121a2) is opened along the width direction of the feeding track (121) and is cross-connected with the sleeve conveying groove (122).

2. The insulating sleeve arrangement device according to claim 1, characterized in that, The conveying gripper unit (22) includes: Rotary clamping assembly (221); and Two sets of symmetrically arranged first clamping fingers (222), each set of first clamping fingers (222) includes a connecting part (222a) and a clamping part (222b). The connecting part (222a) is fixedly connected to the movable end of the rotary clamping assembly (221). The inner side of the clamping part (222b) is provided with a clamping groove (222b1) that is adapted to the outer surface of the insulating sleeve. The clamping groove (222b1) is a non-complete semi-circular arc structure. The two sets of first clamping fingers (222) are connected to clamp the insulating sleeve. When clamping, a gap is left at the lower end of the clamping groove (222b1) to form a semi-enclosed limit on the insulating sleeve.

3. The insulating sleeve arrangement device according to claim 2, characterized in that, Each set of the limiting clamping units (32) includes: Parallel gripper assembly (321); and Two sets of second gripping fingers (322) are symmetrically arranged at the movable end of the parallel gripper assembly (321). The inner side of the second gripping fingers (322) is provided with a limiting groove (322a). The two sets of second gripping fingers (322) are joined together to form a limiting channel. The middle part of the second gripping fingers (322) is provided with a transfer clearance groove (322b). The transfer clearance groove (322b) is configured to extend from top to bottom to the lower middle part of the limiting groove (322a) to transfer the insulating sleeve to the limiting channel.

4. The insulating sleeve arrangement device according to claim 3, characterized in that, The front end of the second clamping finger (322) is provided with a guide part (322c), the guide part (322c) is provided with a semi-conical guide groove whose diameter gradually decreases along the direction of pushing the reinforcing bar, and the two sets of second clamping fingers (322) are connected to form a conical guide channel (322c1), the guide channel (322c1) is connected to the limiting channel.

5. An insulated steel bar production line, characterized in that, The insulating sleeve arrangement device according to claim 4 further includes: A steel bar pushing structure (4) is configured to push steel bars through the pipe passage in sequence; The conveying structure (5) is configured to be partially disposed in the descending path of the limiting clamping unit (32) to receive and convey the reinforcing bars passing through the insulating sleeve; Heat shrinkable structure (6), the heat shrinkable structure (6) is disposed on the steel bar conveying path of the conveying structure (5); The control structure (9) is electrically connected to the steel bar pushing structure (4), the conveying structure (5) and the heat shrinking structure (6).

6. The insulated steel bar production line according to claim 5, characterized in that, The steel bar pushing structure (4) includes: The second frame (41) is provided with a steel bar guide groove (411), which extends along the axial direction of the pipe passage. The pushing unit (42) includes a linear reciprocating device (421) and a pushing member (422). The pushing member (422) is disposed at the movable end of the linear reciprocating device (421) and is located at the end of the reinforcing bar guide groove (411) away from the insulating sleeve limiting structure (3). The feeding unit (43) is configured to deliver a single steel bar to the steel bar guide groove (411).

7. The insulated steel bar production line according to claim 6, characterized in that, The conveying structure (5) includes: The third frame (51) is located on one side of the insulating sleeve limiting structure (3); Several sets of traction conveying devices (52) are set on the third frame (51). The traction direction of the traction conveying device (52) is perpendicular to the axial direction of the reinforcing bar after it passes through the pipe. The traction conveying device (52) is provided with traction components (54) arranged along the traction direction. The traction component (54) is provided with a support groove (541) that cooperates with the reinforcing bar when it falls. The support position of the traction component (54) and the reinforcing bar is located between two adjacent sets of insulating sleeves. Several sets of guide members (53) are provided, each of which corresponds to an insulating sleeve and is disposed on the third frame (51). Each guide member (53) is provided with a guide groove (531) extending along the traction direction of the traction conveying device (52). The inner wall of the guide groove (531) is matched with the two ends of the corresponding insulating sleeve to limit the relative displacement of the insulating sleeve on the reinforcing bar.

8. The insulated steel bar production line according to claim 7, characterized in that, It also includes a steel reinforcement supply structure (7), which comprises: The fourth frame (71) is located on one side of the second frame (41), and the fourth frame (71) is provided with a steel support platform (711) with an inclined bearing surface. The steel distribution device (72) and the steel placement device (73) are configured to transport steel bars located on the steel bar support platform (711) to the steel placement device (73), and the steel placement device (73) is configured to transport steel bars individually to the steel bar pushing structure (4).

9. The insulated steel bar production line according to claim 8, characterized in that, It also includes a filtering structure (8), which includes: The detection device (81) is located at the end of the traction conveying device (52) and is used to detect whether the insulating sleeve on the steel bar is qualified. The sorting device (82) includes: A fixed inclined frame (821) is provided below the end of the traction conveying device (52), and the fixed inclined frame (821) is gradually inclined downward from one end away from the traction conveying device (52) to the other end; A swinging inclined frame (822) is disposed below the end of the fixed inclined frame (821) away from the traction conveying device (52), and the middle of both ends of the swinging inclined frame (822) is rotatably disposed on the fourth frame (71). The second swing drive device (823) is disposed on the fourth frame (71) and is connected to and drives the swing inclined frame (822) to rotate. Receiving bin (824) and unloading device (825); The swing bracket (822) is configured as follows: When the detection device (81) detects that the steel bar is qualified, the end of the swinging inclined frame (822) close to the fixed inclined frame (821) is connected to the fixed inclined frame (821) and forms a continuous inclined guide surface to guide the steel bar to move to the feeding device (825); When the detection device (81) detects that the steel bar is unqualified, the second swing drive device (823) drives the swing inclined frame (822) to swing. The end of the swing inclined frame (822) close to the fixed inclined frame (821) separates from the fixed inclined frame (821) and guides the steel bar to move towards the receiving box (824).

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