Electric pole steel mold bolt righting device and mold closing machine

Abstract

The utility model belongs to the technical field of electric pole production equipment, and particularly relates to an electric pole steel mould bolt righting device and a mould closing machine, which comprise an X-axis moving-in and moving-out mechanism, a lifting mechanism arranged on the X-axis moving-in and moving-out mechanism, a bolt righting mechanism and a bolt pushing mechanism, and the bolt righting mechanism and the bolt pushing mechanism are arranged on the lifting mechanism. The bolt supporting mechanism and the bolt pushing mechanism are fixed to the two opposite side faces of the lifting plate respectively, and the action track of the bolt supporting mechanism and the action track of the bolt pushing mechanism are gt. Form or "lt; and shaping. Through cooperation of the bolt supporting mechanism and the bolt pushing mechanism, the bolt is supported to the 90-degree position from the-90-degree position, the bolt supporting success rate reaches 99% or above, the problem of manual bolt supporting is thoroughly solved, and a traditional steel die is closed through a die closing machine.

Description

Technical Field

[0001] This utility model belongs to the technical field of pole production equipment, specifically a pole steel mold bolt straightening device and a mold closing machine. Background Technology

[0002] Steel molds for utility poles are used to produce cement utility poles. Most existing steel molds are detachable structures, consisting of a top mold and a bottom mold. In actual production, operators place the pole's reinforcing steel frame on the bottom mold and pour concrete. After the top and bottom molds are closed, the pole is formed by centrifugation. As is well known, mold assembly and disassembly are crucial steps in the pole production process. Traditional steel molds use pneumatic hammers for assembly, requiring manual labor to simultaneously support the bolts with one foot while tightening them with the pneumatic hammer. Inconsistent tightening force during manual assembly leads to random variations in the number of turns the nuts make during disassembly, resulting in inconsistent nut lengths on the bolt. Furthermore, the labor intensity of assembly is high, and the need to support the bolts with the foot poses a safety hazard. In addition, traditional steel mold manufacturing is not standardized, with complex working conditions such as uneven bolt spacing of 200-250mm, inconsistent spatial dimensions of fisheye bolts, and bending of steel molds. Furthermore, replacing bolts with spring bolts is technically difficult, and cutting and welding will cause deformation of the steel mold. Therefore, it is not practical to replace traditional bolts on traditional steel molds, and thus it is impossible to use the mold clamping machines that automatically tighten spring bolts available on the market.

[0003] Because of the high technical difficulty in straightening traditional steel mold bolts and the low success rate of straightening bolts in complex working conditions, there is an urgent need to design a device that can straighten bolts under complex working conditions. Utility Model Content

[0004] To address the problems mentioned above, this utility model provides a bolt straightening device and a mold closing machine for utility pole steel formwork. By setting the movement trajectory of the bolt straightening mechanism and the movement trajectory of the bolt pushing mechanism into a ">" shape, the bolt can be straightened from a position of -90° to a position of 90°.

[0005] The first objective of this utility model is to provide a bolt straightening device for utility pole steel formwork, comprising an X-axis infeed / outfeed mechanism, a lifting mechanism disposed on the X-axis infeed / outfeed mechanism, and a bolt straightening mechanism and a bolt pushing mechanism disposed on the lifting mechanism, wherein:

[0006] The lifting mechanism includes a lifting plate, a bolt holding mechanism, and a bolt pushing mechanism, which are respectively fixed on two opposite sides of the lifting plate. The movement trajectory of the bolt holding mechanism and the movement trajectory of the bolt pushing mechanism are in the shape of ">" or "<".

[0007] Furthermore, the bolt-holding mechanism includes a first cylinder fixed to one side of the lifting plate, the first cylinder having a first telescopic rod, the first telescopic rod being inclined downward toward the direction of the steel mold bolt;

[0008] The end of the first telescopic rod is provided with a bolt assembly, which includes a connecting block fixed to the end of the first telescopic rod and an L-shaped hook set on the connecting block. Under the drive of the lifting mechanism and the first cylinder, the L-shaped hook can extend into the back of the steel mold bolt and hook the steel mold bolt.

[0009] Furthermore, the L-shaped hook includes a hook rod and an L-shaped hook head hinged to the end of the hook rod, the L-shaped hook head being rotatably mounted on the hook rod;

[0010] The L-shaped hook is fitted with a reset elastic element, which covers the hinge position between the hook rod and the L-shaped hook head.

[0011] Furthermore, the connecting block has a first through hole and a second through hole that are perpendicular to each other. One end of the L-shaped hook passes through the first through hole, and a limiting member is provided in the second through hole. The limiting member abuts against the outer surface of the L-shaped hook.

[0012] Furthermore, one end of the L-shaped hook extends out from the first through hole to form an extension, and a spring is fitted on the extension;

[0013] A baffle is fixed at the end of the protrusion away from the connecting block. One end of the spring abuts against the connecting block, and the other end abuts against the baffle. The preload provided by the limiting component causes the L-shaped hook to move along the first through hole under the action of external force.

[0014] Furthermore, the part of the L-shaped hook that contacts the steel mold bolt is wrapped with a flexible rolling sleeve.

[0015] Furthermore, the bolt pushing mechanism includes a second cylinder fixed to the other side of the lifting plate, the second cylinder having a second telescopic rod, the second telescopic rod being inclined upward toward the direction of the steel mold bolt;

[0016] The end of the second telescopic rod is provided with a push bolt assembly, which includes a mounting block fixed to the end of the second telescopic rod and a push assembly disposed on the mounting block.

[0017] Furthermore, the pushing component includes an adjusting plate, a bracket mounted on one end of the adjusting plate, and a pushing shaft rotatably mounted on the bracket; the adjusting plate has a strip-shaped hole, and the mounting block has bolt holes corresponding to the strip-shaped hole, and the fastener passes through the strip-shaped hole and is screwed into the bolt hole.

[0018] Furthermore, the part of the push shaft that contacts the steel mold bolt is wrapped with a flexible rolling sleeve.

[0019] The second objective of this utility model is to provide a mold closing machine, including the pole steel mold bolt straightening device mentioned above.

[0020] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0021] (1) The steel mold bolt straightening device of this utility model includes a lifting mechanism and a bolt straightening mechanism and a bolt pushing mechanism set on the lifting mechanism. The movement trajectory of the bolt straightening mechanism and the movement trajectory of the bolt pushing mechanism are in the shape of ">". Through the cooperation of the bolt straightening mechanism and the bolt pushing mechanism, the bolt is straightened from the position of -90° to the position of 90°. The bolt straightening success rate reaches more than 99%, which completely solves the problem of manual bolt straightening and realizes the use of a mold closing machine for traditional steel molds.

[0022] (2) The bolt straightening device of the present invention includes an L-shaped hook. The L-shaped hook can straighten the bolt at -90° to the position at 20°. Then, the bolt pushing mechanism can straighten the bolt at 20° to the position at 90°, thus completing the bolt straightening action.

[0023] (3) The L-shaped hook of the steel mold bolt straightening device of this utility model includes a hook rod and an L-shaped hook head. The L-shaped hook head is rotatably mounted on the hook rod. A reset elastic element is fitted on the L-shaped hook. The reset elastic element covers the connection position of the hook rod and the L-shaped hook head, so that the straightening device is flexible and avoids damage caused by the L-shaped hook hitting the bolt. Attached Figure Description

[0024] 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 only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0025] Figure 1 The overall structure of the pole formwork bolt straightening device provided in one embodiment of this application Figure 1 ;

[0026] Figure 2 The overall structure of the pole formwork bolt straightening device provided in one embodiment of this application Figure 2 ;

[0027] Figure 3 for Figure 1 Enlarged view of part A in the image;

[0028] Figure 4 for Figure 1 Enlarged view of part A after removing the reset elastic element;

[0029] Figure 5 for Figure 1 Enlarged view of part B in the image;

[0030] Figure 6 This is a schematic diagram of the structure of the straightening device for the steel formwork bolt of a utility pole, provided in one embodiment of this application.

[0031] Among them: 1-X-axis moving in and out mechanism, 2-lifting mechanism, 21-lifting plate, 3-bolt holding mechanism, 31-first cylinder, 32-first telescopic rod, 33-connecting block, 331-limiting component, 34-L-shaped hook, 341-hook rod, 342-L-shaped hook head, 343-protrusion, 344-spring, 345-baffle, 346-hinge shaft, 35-reset elastic component, 4-bolt pushing mechanism, 41-second cylinder, 42-second telescopic rod, 43-mounting block, 44-adjusting plate, 441-strip hole, 442-fastener, 45-bracket, 46-push shaft, 5-steel mold bolt. Detailed Implementation

[0032] The technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0033] The following is in conjunction with the appendix Figure 1 To be continued Figure 6 The present invention will be described in detail with specific embodiments.

[0034] like Figure 1-6As shown, this utility model provides a bolt straightening device for utility pole steel formwork, used to straighten the bolts during the closing process of utility pole steel formwork, facilitating subsequent mold closing. The bolt straightening device of this application includes an X-axis in / out mechanism 1, a lifting mechanism 2 mounted on the X-axis in / out mechanism 1, and a bolt-supporting mechanism 3 and a bolt-pushing mechanism 4 mounted on the lifting mechanism 2. The lifting mechanism 2 can drive the bolt-supporting mechanism 3 and the bolt-pushing mechanism 4 to move up and down. The lifting mechanism 2 includes a lifting plate 21, and the bolt-supporting mechanism 3 and the bolt-pushing mechanism 4 are respectively fixed on two opposite sides of the lifting plate 21. The movement trajectory of the bolt-supporting mechanism 3 and the bolt-pushing mechanism 4 are in a ">" or "<" shape, and the movements of the bolt-supporting mechanism 3 and the bolt-pushing mechanism 4 do not interfere with each other. This application does not limit the specific structure of the lifting mechanism 2; as long as the lifting plate 21 can be moved up and down, it falls within the scope of protection of this application. Optionally, the lifting plate 21 can be driven by a cylinder, or by a lead screw and nut, or by a linear module mechanism, but is not limited to the above methods. It should be noted that the steel mold bolt straightening device of this application is generally installed on both sides of the center line of the traditional steel mold. When installed on the left side, the movement trajectory of the bolt straightening mechanism 3 and the movement trajectory of the bolt pushing mechanism 4 are in the shape of "<". When installed on the right side, the movement trajectory of the bolt straightening mechanism 3 and the movement trajectory of the bolt pushing mechanism 4 are in the shape of ">". The following embodiments of this application take the installation of the steel mold bolt straightening device on the right side of the traditional steel mold as an example for illustration.

[0035] This application, through ingenious structural design, makes the movement trajectory of the bolt-holding mechanism 3 and the bolt-pushing mechanism 4 form a ">" or "<" shape. Through the cooperation of the two mechanisms, the steel mold bolt 5 is lifted from a position of -90° to a position of 90°. The success rate of lifting the steel mold bolt reaches over 99%, completely solving the problems of high labor intensity and dangerous working environment of manual bolt lifting. It realizes the process of automatic mold closing by a mold closing machine, which is a traditional process for steel molds. Moreover, the overall structure is simple and practical, and can meet the requirements of different steel mold specifications.

[0036] In some embodiments, see Figures 1 to 4The bolt-holding mechanism 3 includes a first cylinder 31 fixed to one side of the lifting plate 21. The first cylinder 31 has a first telescopic rod 32, which is inclined downward toward the direction of the steel mold bolt. A bolt-holding assembly is provided at the end of the first telescopic rod 32. The bolt-holding assembly includes a connecting block 33 fixed to the end of the first telescopic rod 32 and an L-shaped hook 34 provided on the connecting block 33. Under the drive of the lifting mechanism 2, the X-axis in-and-out mechanism 1 and the first cylinder 31, the L-shaped hook 34 can extend into the back of the steel mold bolt. Specifically, the X-axis infeed / outfeed mechanism 1 positions the entire straightening device to a suitable position, and then the lifting mechanism 2 positions the L-shaped hook 34 below the nut. After that, the lifting plate 21 is raised a certain distance so that the L-shaped hook 34 is positioned on the back of the steel mold bolt 5 and aligned with the steel mold bolt 5. Then, the first cylinder 31 retracts, causing the steel mold bolt 5 to move from -90° to 20°. Finally, the bolt pushing mechanism 4 moves the steel mold bolt 5 from 20° to 90°, completing the bolt straightening action.

[0037] It should be noted that this application does not limit the endpoint position of the bolt-supporting mechanism 3. The 20° described above is just an example. In other embodiments, the bolt-supporting mechanism 3 can also be designed to support the steel mold bolt from -90° to positions such as 15°, 25°, 23°, 28°, and 30°. As long as the bolt-supporting mechanism 3 and the bolt-pushing mechanism 4 can be connected to support the steel mold bolt from the -90° position to the 90° position, they all fall within the protection scope of this application.

[0038] In some embodiments, see Figure 3 and Figure 4 The L-shaped hook 34 includes a hook rod 341 and an L-shaped hook head 342 hinged to the end of the hook rod 341. The L-shaped hook head 342 is rotatably mounted on the hook rod 341. Specifically, the hook rod 341 has a first through hole that passes through both sides. The L-shaped hook head 342 has a U-shaped groove at a position corresponding to the hook rod 341 to accommodate the end of the hook rod 341. The two side walls of the U-shaped groove have second through holes corresponding to the first through hole. The hinge shaft 346 passes through the second through hole and the first through hole to realize the up and down rotation of the L-shaped hook head 342 relative to the hook rod 341. However, it is not limited to this. The two can also be rotated and connected in other ways, which are all within the protection scope of this application.

[0039] A reset elastic element 35 is fitted onto the L-shaped hook 34, covering the connection position between the hook rod 341 and the L-shaped hook head 342. The rotatable connection between the L-shaped hook head 342 and the hook rod 341, along with the reset elastic element 35, makes the steel mold bolt straightening device of this application flexible, preventing damage caused by the L-shaped hook 34 hitting the steel mold bolt. When the external force disappears, the L-shaped hook head 342 can be reset by the reset elastic element 35. In other words, due to the deviation in the position of the bolt through the pin hole in traditional systems, the position of the steel mold bolt also has a certain deviation. By setting the L-shaped hook head 342 as a flexible structure, it is not necessary to adjust the movement trajectory of the straightening device for each steel mold bolt; instead, it only needs to be set once to adapt to different steel mold bolts on the same specification of steel mold.

[0040] In some embodiments, the connecting block 33 has a first through hole and a second through hole (not shown in the figure) with mutually perpendicular installation directions. One end of the L-shaped hook 34 passes through the first through hole, and a limiting member 331 is provided in the second through hole. The limiting member 331 abuts against the outer surface of the L-shaped hook 34, thereby fixing the L-shaped hook 34 to the connecting block 33. Preferably, the first through hole is a square shaft hole, and the part of the L-shaped hook 34 that mates with the directional shaft hole is a square shaft. The square shaft and the square shaft hole are clearance-fitted to prevent the L-shaped hook 34 from rotating during use. It should be noted that the magnitude of the abutting force of the limiting member 331 limits the magnitude of the preload force between the connecting block 33 and the L-shaped hook 34. In this application, the preload force between the connecting block 33 and the L-shaped hook 34 does not need to be too large, as long as it can achieve relative fixation between the two during the bolt tightening process.

[0041] In some embodiments, see Figure 3 One end of the L-shaped hook 34 extends from the first through hole to form an extension 343, and a spring 344 is sleeved on the extension 343. A baffle 345 is fixed to the end of the extension 343 away from the connecting block 33. One end of the spring 344 abuts against the connecting block 33, and the other end abuts against the baffle 345. The preload provided by the limiting member 331 causes the L-shaped hook 34 to move telescopically along the first through hole under a certain external force. It can be understood that when the external force is small, the connecting block 33 and the L-shaped hook 34 are relatively fixed. When the external force exceeds a certain value, the preload provided by the limiting member 331 is insufficient to fix the two relatively, and the L-shaped hook 34 moves telescopically relative to the connecting block 33. The L-shaped hook 34 of this application can move telescopically along the first through hole under a larger external force, avoiding the L-shaped hook 34 from hitting the steel mold or getting stuck with the steel mold bolts, forming a mechanical dead point, and serving the purpose of protecting the steel mold bolt straightening device.

[0042] In a specific embodiment, the part of the L-shaped hook 34 that contacts the steel mold bolt is wrapped with a flexible rolling sleeve. The contact between the L-shaped hook 34 and the steel mold bolt is achieved by the flexible rolling sleeve, avoiding rigid contact and improving the service life of the L-shaped hook.

[0043] In some embodiments, see Figure 1 and Figure 5 The bolt pushing mechanism 4 includes a second cylinder 41 fixed to the other side of the lifting plate 21. The second cylinder 41 has a second telescopic rod 42, which is inclined upward toward the direction of the steel mold bolt. A bolt pushing assembly is provided at the end of the second telescopic rod 42. The bolt pushing assembly includes a mounting block 43 fixed to the end of the second telescopic rod 42 and a pushing component provided on the mounting block 43. When the bolt holding mechanism 3 holds the steel mold bolt 5 to a certain position, the pushing component starts to move, pushing the steel mold bolt 5 to a 90° position.

[0044] In some embodiments, the pushing component includes an adjusting plate 44, a bracket 45 mounted on one end of the adjusting plate 44, and a pushing shaft 46 rotatably mounted on the bracket 45. The adjusting plate 44 has a strip hole 441, and the mounting block 43 has a bolt hole corresponding to the strip hole 441. The fastener 442 passes through the strip hole 441 and is screwed into the bolt hole. The setting of the strip hole 441 enables the adjustment of the position of the pushing shaft 46, so that the steel mold bolt straightening device of this application can meet the requirements of different steel mold specifications.

[0045] In a specific embodiment, the part of the push shaft 46 that contacts the steel mold bolt is wrapped with a flexible rolling sleeve. The contact between the push shaft 46 and the steel mold bolt is achieved through the flexible rolling sleeve, avoiding rigid contact and improving the service life of the push shaft.

[0046] The working principle of the steel formwork bolt straightening device in this application is as follows:

[0047] The movement trajectory of the steel mold bolt straightening device is determined. In this application, the bolt straightening device follows a ">" shaped trajectory. In the initial state, the X-axis moving-in / moving-out mechanism 1 moves out to the correct position, and the lifting mechanism 2 descends to the correct position. After the bolt straightening program is started, the X-axis moving-in / moving-out mechanism 1 moves in to the correct position, the first cylinder 31 controls the L-shaped hook 34 to extend to the correct position, and after the lifting mechanism 2 rises to the correct position, the first cylinder 31 controls the L-shaped hook 34 to retract to the correct position, thereby straightening the steel mold bolt 5 from a position of -90° to a position of 20°. Subsequently, the second cylinder 41 controls the push shaft 46 to extend to the correct position, thereby straightening the steel mold bolt 5 from a position of 20° to a position of 90°. After that, the bolt pushing mechanism 4 retracts to the correct position, and finally the X-axis moving-in / moving-out mechanism 1 moves out to the correct position.

[0048] This utility model also provides a mold closing machine, including multiple pole steel formwork bolt straightening devices as described above. By simultaneously straightening multiple steel formwork bolts using multiple pole steel formwork bolt straightening devices, work efficiency is greatly improved. For example, 16 steel formwork bolts with a 2-meter spacing between the steel formwork running wheels corresponding to a traditional steel formwork can be combined into 8 or 16 workstations, significantly improving work efficiency. In addition, the mold closing machine provided in this application adopts all the technical solutions of all embodiments of the pole steel formwork bolt straightening devices described above, and therefore has at least all the beneficial effects brought about by the technical solutions of the embodiments of the pole steel formwork bolt straightening devices described above, which will not be elaborated here.

[0049] The present invention has been further described above with reference to specific embodiments. However, it should be understood that the specific description herein should not be construed as limiting the substance and scope of the present invention. Various modifications made by those skilled in the art to the above embodiments after reading this specification are all within the scope of protection of the present invention.

Claims

1. A bolt straightening device for utility pole steel formwork, characterized in that, It includes an X-axis in / out mechanism, a lifting mechanism mounted on the X-axis in / out mechanism, and a bolt-holding mechanism and a bolt-pushing mechanism mounted on the lifting mechanism, wherein: The lifting mechanism includes a lifting plate, and the bolt holding mechanism and the bolt pushing mechanism are respectively fixed on two opposite sides of the lifting plate. The movement trajectory of the bolt holding mechanism and the movement trajectory of the bolt pushing mechanism are in the shape of ">" or "<".

2. The pole steel formwork bolt straightening device according to claim 1, characterized in that, The bolt-holding mechanism includes a first cylinder fixed to one side of the lifting plate. The first cylinder has a first telescopic rod, which is inclined downward toward the direction of the steel mold bolt. The first telescopic rod is provided with a bolt assembly at its end. The bolt assembly includes a connecting block fixed to the end of the first telescopic rod and an L-shaped hook provided on the connecting block. Under the drive of the lifting mechanism and the first cylinder, the L-shaped hook can extend through the steel mold bolt and hook onto the steel mold bolt.

3. The pole steel formwork bolt straightening device according to claim 2, characterized in that, The L-shaped hook includes a hook rod and an L-shaped hook head hinged to the end of the hook rod, the L-shaped hook head being rotatably mounted on the hook rod; The L-shaped hook is fitted with a reset elastic element, which covers the hinge position of the hook rod and the L-shaped hook head.

4. The pole steel formwork bolt straightening device according to claim 2, characterized in that, The connecting block has a first through hole and a second through hole that are perpendicular to each other. One end of the L-shaped hook passes through the first through hole, and a limiting member is provided in the second through hole. The limiting member abuts against the outer surface of the L-shaped hook.

5. The pole steel formwork bolt straightening device according to claim 4, characterized in that, One end of the L-shaped hook extends out of the first through hole to form an extension, and a spring is sleeved on the extension. A baffle is fixed at one end of the protrusion away from the connecting block. One end of the spring abuts against the connecting block, and the other end abuts against the baffle. The preload provided by the limiting member causes the L-shaped hook to move along the first through hole under the action of external force.

6. The pole steel formwork bolt straightening device according to claim 2, characterized in that, The part of the L-shaped hook that contacts the steel mold bolt is wrapped with a flexible rolling sleeve.

7. The pole steel formwork bolt straightening device according to claim 1, characterized in that, The bolt pushing mechanism includes a second cylinder fixed to the other side of the lifting plate. The second cylinder has a second telescopic rod, which is inclined upward toward the direction of the steel mold bolt. The end of the second telescopic rod is provided with a push bolt assembly, which includes a mounting block fixed to the end of the second telescopic rod and a pushing component disposed on the mounting block.

8. The pole steel formwork bolt straightening device according to claim 7, characterized in that, The pushing assembly includes an adjusting plate, a bracket mounted on one end of the adjusting plate, and a pushing shaft rotatably mounted on the bracket; the adjusting plate has a strip-shaped hole, and the mounting block has a bolt hole corresponding to the strip-shaped hole, and the fastener passes through the strip-shaped hole and is screwed into the bolt hole.

9. The pole steel formwork bolt straightening device according to claim 8, characterized in that, The part of the push shaft that contacts the steel mold bolt is wrapped with a flexible rolling sleeve.

10. A mold clamping machine, characterized in that, Includes the pole formwork bolt straightening device as described in any one of claims 1-9.

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