A steel strand sheath stripping system

Abstract

The utility model provides a kind of steel strand outer skin stripping system, including pay-off rack, wire guide device, tractor and take-up machine sequentially arranged along the outgoing direction of steel strand, and the incoming direction and outgoing direction of tractor are respectively provided with peeling device and peeling device;Peeling device includes peeling fixed frame, and peeling movable frame is installed on the side of peeling fixed frame far from incoming direction;The top of peeling movable frame is fixed with tool bit, and the cutting edge direction of tool bit is towards the incoming direction of steel strand to be skinned, and wire guide roller is installed in peeling fixed frame;Peeling device includes peeling fixed frame, and peeling movable frame is installed on the top of peeling fixed frame, and peeling stopper is installed on the top of peeling movable frame, and peeling stopper has wire hole compatible with the outer diameter of skinned steel strand, and the end outer wall of peeling stopper close to incoming direction is conical;The technical scheme of the utility model solves the problem that manual removal of defective steel strand outer skin is more laborious and inefficient.

Description

Technical Field

[0001] This utility model relates to the field of steel strand, and in particular to a steel strand sheath stripping system. Background Technology

[0002] Unbonded steel strand is a high-strength steel strand used in prestressed concrete structures. Its core characteristic lies in its ability to prevent bonding with the surrounding concrete through a protective grease coating and a high-density polyethylene sheath, allowing it to slide freely within the structure. Because unbonded steel strand remains free within the concrete, it is more suitable for applications in static environments, such as high-rise buildings and large-span factory buildings—civil engineering projects with significant static loads. In these scenarios, unbonded steel strand can improve construction efficiency, reduce beam and slab thickness, enhance structural performance, and save costs. It is also widely used in bridges and various large-span building structures requiring crack control, making it a highly efficient and crucial prestressing material.

[0003] Currently, the application fields of unbonded steel strands are constantly expanding, and unbonded steel strand products with different sheath thicknesses and performance are continuously being developed. During the trial production of new products, sheath thickness and performance indicators may not meet requirements. Therefore, to facilitate process trial production and considering research and manufacturing costs, the sheathed steel strands can be reused. However, removing the sheath manually is not only labor-intensive and inefficient, but also poses a safety risk, as manual stripping can easily result in hand injuries and workplace accidents. To address these issues, a stripping system capable of efficiently removing the sheath of unbonded steel strands is needed. Utility Model Content

[0004] The technical means adopted in this utility model are as follows: A steel strand sheath stripping system includes a wire feeding frame, a wire guide device, a traction machine, and a take-up machine arranged sequentially along the wire output direction of the steel strand. The traction machine is equipped with a stripping device and a sheath stripping device in the wire input direction and the wire output direction, respectively. The wire feeding frame is used to place the steel strand coil to be peeled, the peeling device is used to make a notch in the outer sheath of the steel strand to be peeled, the traction machine is used to pull the steel strand to move, the stripping device is used to remove the remaining outer sheath of the steel strand to be peeled, and the take-up machine is used to recycle the peeled steel strand. The peeling device includes a peeling fixing frame, and a peeling movable frame is installed on the side of the peeling fixing frame away from the wire feeding direction through a first adjustment mechanism; a blade head is fixed on the top of the peeling movable frame, and the blade direction of the blade head faces the wire feeding direction of the steel strand to be peeled; a wire roller is installed inside the peeling fixing frame through a second adjustment structure. The stripping device includes a stripping fixing frame, and a stripping movable frame is installed on the top of the stripping fixing frame through a third adjustment structure. A stripping stop is installed on the top of the stripping movable frame. The stripping stop has a wire passage hole adapted to the outer diameter of the stripped steel strand. The outer wall of the end of the stripping stop near the wire inlet direction is conical.

[0005] Preferably, the first connecting mechanism includes a first threaded hole on the peeling fixed frame and a first strip-shaped through hole on the peeling movable frame, and the peeling movable frame is fixed to the peeling fixed frame by a first bolt passing through the first threaded hole and the first strip-shaped through hole; The second adjustment mechanism includes a second strip-shaped through hole and a connecting shaft disposed on the side wall of the peeling fixture; the connecting shaft passes through the second strip-shaped through hole and is fastened by a nut, and the guide roller is sleeved on the connecting shaft.

[0006] Preferably, a collection box is provided next to the peeling device, which is used to collect the waste peel material cut off by the peeling device.

[0007] Preferably, a first inclined baffle and a second inclined baffle are installed above the peeling frame. The first inclined baffle and the second inclined baffle form a V-shaped structure. The first inclined baffle is located on the side of the blade head in the wire inlet direction, and the second inclined baffle is located on the side of the blade head outlet direction.

[0008] Preferably, the first inclined baffle and the second inclined baffle are inclined toward one side of the collection box.

[0009] Preferably, the third adjustment mechanism includes a third strip-shaped through hole on the peeling movable frame and a second threaded hole on the peeling fixed frame, and the peeling movable frame is fixed to the peeling fixed frame by a second bolt passing through the third strip-shaped through hole and the second threaded hole.

[0010] Preferably, the peeling stop has a two-part spliced ​​structure.

[0011] Preferably, the peeling frame is provided with a stop block for fixing the peeling stop head. The stop block includes an upper stop block and a lower stop block arranged symmetrically. The middle part of the upper stop block and the lower stop block each have a semi-cylindrical groove. The peeling stop head is located between the upper stop block and the lower stop block and is fastened by a third bolt that passes through the upper stop block and the lower stop block. The lower stop block is fixedly connected to the top of the peeling frame.

[0012] Compared with the prior art, the present invention has the following advantages: 1. This utility model relies on the existing steel strand protective sheath coating production line. By installing detachable peeling and stripping devices on the inlet and outlet sides of the traction machine respectively, the defective steel strand protective sheath can be quickly stripped off on the same production line when defects occur during the steel strand coating process, without the need to install a new sheath stripping production line. Furthermore, the steel strands after the defective outer sheath is removed are relatively close to the coating production line, and can be re-placed on the coating production line for recoating after being rolled up.

[0013] 2. A stripping device is installed on the lead-out side of the traction machine. It can work with the take-up machine to remove the remaining outer sheath after cutting through the stripping stop during the take-up process, eliminating the need for manual tearing and saving more effort. The stripping stop is connected to the stripping frame via a stop clamp block. Different stripping stops can be replaced according to different sizes of steel strands, making replacement convenient. Furthermore, the two-part structure of the stripping stop makes disassembly and replacement even easier.

[0014] 3. By setting a first inclined baffle and a second inclined baffle on the top of the peeling frame, the steel strand and the cut waste can be separated, preventing the cut outer skin from getting tangled with the steel strand. The inclined setting of the first and second inclined baffles makes it convenient to pour the cut waste into the collection box.

[0015] 4. The adjustable height setting of the conductor roller and cutter head can adapt to steel strands of different diameters and realize the outer sheath cutting of steel strands of different diameters.

[0016] Based on the above reasons, this utility model can be widely promoted in fields such as stripping the outer sheath of steel strands. Attached Figure Description

[0017] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0018] Figure 1 This is a schematic diagram of a steel strand sheath stripping system.

[0019] Figure 2 This is a schematic diagram of a peeling device for a steel strand glass system.

[0020] Figure 3 This is a schematic diagram of a stripping device for a steel strand glass system.

[0021] In the diagram: 1. Wire feeding frame; 2. Wire guide device; 3. Wire stripping device; 31. Wire stripping fixed frame; 32. Wire stripping movable frame; 33. Cutting head; 34. Wire roller; 35. First inclined baffle; 36. Second inclined baffle; 4. Traction machine; 41. Collection box; 5. Wire stripping device; 51. Wire stripping fixed frame; 52. Wire stripping movable frame; 53. Wire stripping stop; 54. Stop clamp; 6. Wire take-up machine. Detailed Implementation

[0022] It should be noted that, unless otherwise specified, the embodiments and features of the present invention can be combined with each other. The present invention will now be described in detail with reference to the accompanying drawings and embodiments. To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. The following description of at least one exemplary embodiment is merely illustrative and is in no way intended to limit the present invention or its application or use. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0023] like Figures 1-3 As shown, a steel strand sheath stripping system includes a wire feeding frame 1, a wire device 2, a traction machine 4, and a take-up machine 6 arranged sequentially along the wire output direction of the steel strand. The traction machine 4 is provided with a stripping device 3 and a stripping device 5 in the wire input direction and the wire output direction, respectively. The wire feeding frame 1 is used to place the steel strand coil to be peeled, the peeling device 3 is used to make a notch in the outer sheath of the steel strand to be peeled, the traction machine 4 is used to pull the steel strand to move, the stripping device 5 is used to remove the remaining outer sheath of the steel strand to be peeled, and the take-up machine 6 is used to recycle the peeled steel strand. The peeling device 3 includes a peeling fixing frame 31, and a peeling movable frame 32 is installed on the side of the peeling fixing frame 31 away from the wire feeding direction via a first adjustment mechanism; a blade head 33 is fixed on the top of the peeling movable frame 32, and the blade direction of the blade head 33 faces the wire feeding direction of the steel strand to be peeled; a wire roller 34 is installed inside the peeling fixing frame 31 via a second adjustment mechanism; the first adjustment mechanism is used to adjust the height of the peeling movable frame 32, and the second adjustment mechanism is used to adjust the height of the wire roller 34. The peeling device 5 includes a peeling fixing frame 51, and a peeling movable frame 52 is installed on the top of the peeling fixing frame 51 through a third adjustment structure. A peeling stop head 53 is installed on the top of the peeling movable frame 52, and the peeling stop head 53 is a two-part spliced ​​structure.

[0024] The stripping stop 53 has a wire passage hole that matches the outer diameter of the stripped steel strand, and the outer wall of the end of the stripping stop 53 near the wire inlet direction is tapered.

[0025] The first connecting mechanism includes a first threaded hole on the peeling fixing frame 31 and a first strip-shaped through hole on the peeling movable frame 32. The peeling movable frame 32 is fixed to the peeling fixing frame 31 by a first bolt passing through the first threaded hole and the first strip-shaped through hole. The second adjustment mechanism includes a second strip-shaped through hole and a connecting shaft disposed on the side wall of the peeling fixing frame 31; the connecting shaft passes through the second strip-shaped through hole and is fastened by a nut, and the guide roller 34 is sleeved on the connecting shaft.

[0026] A collection box 41 is provided next to the peeling device, which is used to collect the outer skin waste cut off by the peeling device 3.

[0027] A first inclined baffle 35 and a second inclined baffle 36 are installed above the peeling frame 32. The first inclined baffle 35 and the second inclined baffle 36 form a V-shaped structure. The first inclined baffle 35 is located on the side of the blade head infeed direction, and the second inclined baffle 36 is located on the side of the blade head outfeed direction.

[0028] The first inclined baffle 35 and the second inclined baffle 36 are inclined toward one side of the collection box 41.

[0029] The third adjustment mechanism includes a third strip-shaped through hole on the peeling movable frame 52 and a second threaded hole on the peeling fixed frame 51. The peeling movable frame 52 is fixed to the peeling fixed frame 51 by a second bolt passing through the third strip-shaped through hole and the second threaded hole.

[0030] The peeling frame 52 is provided with a stop block 54 for fixing the peeling stop head 53. The stop block 54 includes an upper stop block and a lower stop block arranged symmetrically. The middle part of the upper stop block and the lower stop block each has a semi-cylindrical groove. The peeling stop head 53 is located between the upper stop block and the lower stop block and is fastened by a third bolt that passes through the upper stop block and the lower stop block. The lower stop block is fixedly connected to the top of the peeling frame 52.

[0031] In use: Place the steel strand to be peeled on the pay-off frame 1, draw the steel strand to be peeled from the pay-off frame 1, then pass the steel strand to be peeled through the conductor device 2, and then place the steel strand to be peeled on the conductor roller 34. Adjust the height of the conductor roller 34 and the cutter head 33 through the first adjustment mechanism and the second adjustment mechanism to control the cutting depth of the cutter head 33.

[0032] The end of the steel strand is placed into the inlet of the traction machine 4 and the traction machine 4 is started. When the steel strand passes through the cutter head 33, the outer sheath on one side of its surface will be cut off. The cut outer sheath waste will separate from the steel strand by the first inclined baffle 35 and the second inclined baffle 36. The separated outer sheath waste will slide down the inclined surfaces of the first inclined baffle 35 and the second inclined baffle 36 into the collection box 41. When the steel strand exits from the outlet of the traction machine 4, the outer sheath at the end of the steel strand is manually torn off, and the peeled steel strand is placed into the peeling stop head 53 that is compatible with its model.

[0033] Continue pulling the steel strand to the take-up machine 6, and fix this section of steel strand with all its outer sheath removed onto the take-up machine 6. Turn on the switch of the take-up machine 6 to start the take-up operation. The remaining steel strand is pulled by the puller 4 to cut off the outer sheath on one side of the steel strand surface. When the steel strand passing through the outlet of the puller 4 passes the stripping stop 53, because the inner diameter of the wire passage hole of the stripping stop 53 matches the outer diameter of the steel strand without outer sheath, the steel strand will pass through the stripping stop under the tension of the take-up machine 6, while the remaining outer sheath will be blocked outside the stop, thus achieving the stripping of the steel strand from all its outer sheath.

[0034] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features therein. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this utility model.

Claims

1. A steel strand sheath stripping system, comprising a wire feeding frame, a conductor device, a traction machine, and a take-up machine arranged sequentially along the wire feeding direction of the steel strand, characterized in that, The traction machine is equipped with a peeling device and a stripping device in the inlet and outlet directions, respectively. The wire feeding frame is used to place the steel strand coil to be peeled, the peeling device is used to make a notch in the outer sheath of the steel strand to be peeled, the traction machine is used to pull the steel strand to move, the stripping device is used to remove the remaining outer sheath of the steel strand to be peeled, and the take-up machine is used to recycle the peeled steel strand. The peeling device includes a peeling fixing frame, and a peeling movable frame is installed on the side of the peeling fixing frame away from the wire feeding direction through a first adjustment mechanism; a blade is fixed on the top of the peeling movable frame, and the blade direction of the blade is facing the wire feeding direction of the steel strand to be peeled; a wire roller is installed inside the peeling fixing frame through a second adjustment mechanism. The stripping device includes a stripping fixing frame, and a stripping movable frame is installed on the top of the stripping fixing frame through a third adjustment mechanism. A stripping stop is installed on the top of the stripping movable frame. The stripping stop has a wire passage hole adapted to the outer diameter of the stripped steel strand. The outer wall of the end of the stripping stop near the wire inlet direction is conical.

2. The steel strand sheath stripping system according to claim 1, characterized in that, The first adjustment mechanism includes a first threaded hole on the peeling fixed frame and a first strip-shaped through hole on the peeling movable frame. The peeling movable frame is fixed to the peeling fixed frame by a first bolt passing through the first threaded hole and the first strip-shaped through hole. The second adjustment mechanism includes a second strip-shaped through hole and a connecting shaft disposed on the side wall of the peeling fixture; the connecting shaft passes through the second strip-shaped through hole and is fastened by a nut, and the guide roller is sleeved on the connecting shaft.

3. The steel strand sheath stripping system according to claim 1, characterized in that, A collection box is provided next to the peeling device, which is used to collect the outer skin waste cut off by the peeling device.

4. A steel strand sheath stripping system according to claim 3, characterized in that, A first inclined baffle and a second inclined baffle are installed above the peeling frame. The first inclined baffle and the second inclined baffle form a V-shaped structure. The first inclined baffle is located on the side of the blade head in the infeed direction, and the second inclined baffle is located on the side of the blade head outfeed direction.

5. A steel strand sheath stripping system according to claim 4, characterized in that, The first inclined baffle and the second inclined baffle are inclined toward one side of the collection box.

6. A steel strand sheath stripping system according to claim 1, characterized in that, The third adjustment mechanism includes a third strip-shaped through hole on the peeling movable frame and a second threaded hole on the peeling fixed frame. The peeling movable frame is fixed to the peeling fixed frame by a second bolt passing through the third strip-shaped through hole and the second threaded hole.

7. The steel strand sheath stripping system according to claim 1, characterized in that, The peeling stop has a two-part spliced ​​structure.

8. A steel strand sheath stripping system according to claim 1, characterized in that, The peeling frame is equipped with a stop block for fixing the peeling stop head. The stop block includes an upper stop block and a lower stop block arranged symmetrically. The middle part of the upper stop block and the lower stop block each have a semi-cylindrical groove. The peeling stop head is located between the upper stop block and the lower stop block and is fastened by a third bolt that passes through the upper stop block and the lower stop block. The lower stop block is fixedly connected to the top of the peeling frame.

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