Pipe bending device

Abstract

The utility model discloses a kind of pipe bending wrinkle prevention devices, including the C-shaped frame of being mounted to the top of the one side of the mesa for carrying static mould, the inner cavity of C-shaped frame is rotatably connected with mounting post, the outer circular surface of mounting post is equipped with several groups of installation slot, the inner cavity of each installation slot is respectively connected with different models of wrinkle prevention plate through anti-drop piece, the mouth portion of one group of wrinkle prevention plate is tightly attached to the mouth portion of static mould, one end of C-shaped frame is provided with rotating member for rotating mounting post to switch to corresponding model wrinkle prevention plate according to the pipe fitting model needed to be bent, the bottom of C-shaped frame is mounted on the mesa surface by connecting piece, the utility model is equipped with mounting post, rotatable mounting post is arranged in C-shaped frame, and mounting slot with different model wrinkle prevention plate is arranged on mounting post, and the quick switching of wrinkle prevention plate can be realized by cooperating rotating member, the processing demand of different model pipe fitting to be bent can be adapted, and the versatility and application range of equipment are improved.

Description

Technical Field

[0001] This utility model relates to the technical field of anti-wrinkle devices for pipe bending, specifically an anti-wrinkle device for pipe bending. Background Technology

[0002] Currently, steel pipe is an economical steel material, with a wide variety of steel grades, specifications, and performance requirements. It is a very important building material in daily life. In practical use, steel pipe often needs to be bent to a certain degree of curvature, and bending equipment is generally used to bend straight steel pipe.

[0003] Currently, Chinese patent CN222695726U discloses an anti-wrinkle device for pipe bending. It achieves rapid installation of the internal mounting frame through a top clamping structure, a stabilizing part, a top blind hole, and a top inclined surface. After pushing it into the mounting frame, it can be positioned and clamped, making installation convenient. Multiple anti-wrinkle plates are pre-set through an internal adjustment mechanism, and the outermost anti-wrinkle plate can be directly replaced after wear, making operation simple.

[0004] The aforementioned anti-wrinkle device for pipe bending has some problems in actual use. The replacement of the anti-wrinkle plate is cumbersome and it is difficult to quickly switch according to different models of the pipe fittings to be bent. This results in a narrow range of equipment versatility and applicability, and it cannot flexibly meet the processing needs of various models of pipe fittings. Utility Model Content

[0005] The purpose of this invention is to provide a pipe bending anti-wrinkle device to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution: A pipe bending anti-wrinkle device includes a C-shaped frame installed on the top of one side of a table used to support a stationary mold. The inner cavity of the C-shaped frame is rotatably connected to a mounting column. The outer circular surface of the mounting column is provided with several sets of mounting grooves. The inner cavity of each set of mounting grooves is connected to an anti-wrinkle plate of a different model through an anti-detachment component. The opening of one set of anti-wrinkle plates is in close contact with the opening of the stationary mold. One end of the C-shaped frame is provided with a rotating component for rotating the mounting column to switch to the corresponding model of anti-wrinkle plate according to the pipe model to be bent. The bottom of the C-shaped frame is installed on the table surface through a connector.

[0007] As a preferred technical solution, the rotating component includes a fixing rod rotatably inserted into the end of the C-shaped frame. One end of the fixing rod extends into the inner cavity of the C-shaped frame and is fixedly connected to the corresponding side end of the mounting post. A positioning ring is slidably sleeved on the surface of the other end of the fixing rod. A snap-fit ​​component is provided in the inner cavity of the positioning ring and snaps into the surface of the fixing rod. A positioning rod is fixedly connected to the inner end of the positioning ring. A positioning hole is opened on the surface of one end of the C-shaped frame for the positioning rod to pass through. A positioning groove is opened at the end of the mounting post and on the inner side of each set of mounting grooves. An elastic pusher is provided on the outer side of the positioning ring to push the positioning ring inward so that its end is inserted into the inner cavity of the corresponding side positioning groove, thereby fixing the mounting post.

[0008] As a preferred technical solution, the snap-fit ​​component includes a fixing piece fixedly connected to the inner wall of the top of the positioning ring, and the top surface of the other end of the fixing rod is provided with a slot for the fixing piece to slide left and right. One end of the fixing piece extends into the slot and can slide left and right along the slot.

[0009] As a preferred technical solution, the elastic pusher includes a screw fixedly connected to the other end of the fixed rod, a pull ring sleeved in the middle of the screw, and connecting strips fixedly connected to the upper and lower parts of the inner side of the pull ring, the other ends of the two sets of connecting strips being fixedly connected to the corresponding positions of the positioning ring, a nut threadedly connected to the other end of the screw, and a spring sleeved on the surface of the screw located between the pull ring and the nut.

[0010] As a preferred technical solution, the anti-detachment component includes dovetail grooves respectively opened on the inner wall of each set of mounting grooves, and a dovetail tenon is slidably inserted into the inner cavity of each set of dovetail grooves. The surface of each set of dovetail tenons is fixedly connected to the surface of the corresponding side anti-wrinkle plate, and each set of dovetail tenons is fixedly installed in the inner cavity of the corresponding side dovetail groove by a fastener.

[0011] As a preferred technical solution, the fastener includes a through hole opened at the end of each set of dovetail tenons, and a fixing bolt is inserted into the inner cavity of each set of through holes. The end of each set of fixing bolts passes through the corresponding side through hole and is threaded to the inner wall of the corresponding side dovetail groove.

[0012] As a preferred technical solution, the connector includes a guide strip fixedly installed at the bottom of the C-shaped frame, a guide groove for the guide strip to slide on the top of the table, the guide strip being slidably connected to the inner cavity of the guide groove at the corresponding position, a limit frame being fixedly installed on the lower side of the end of the C-shaped frame, and limit bolts connected to the table are provided on both sides of the limit frame.

[0013] Compared with the prior art, the beneficial effects of this utility model are: 1. This utility model, through the setting of the mounting column, sets a rotatable mounting column within the C-shaped frame, and sets multiple sets of mounting grooves with different types of anti-wrinkle plates on the mounting column. With the cooperation of the rotating component, the anti-wrinkle plates can be quickly switched, which can adapt to the processing needs of different types of pipe fittings to be bent, thus improving the versatility and applicability of the equipment.

[0014] 2. By incorporating anti-detachment components and utilizing the sliding fit between the dovetail groove and the dovetail tenon, this utility model ensures that the anti-wrinkle plate can be stably installed in the mounting groove, effectively preventing the anti-wrinkle plate from falling off during use and guaranteeing the installation stability of the anti-wrinkle plate.

[0015] 3. By setting up fasteners and cooperating with the fixing bolts, through holes, and dovetail grooves, this utility model can further firmly fix the dovetail tenon in the dovetail groove, enhance the connection strength between the anti-wrinkle plate and the mounting column, prevent the anti-wrinkle plate from loosening or shifting during operation, ensure the stability of the anti-wrinkle plate installation, and the operation of tightening the bolts is simple, which facilitates quick disassembly and installation of the anti-wrinkle plate and makes it convenient for replacement and maintenance. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the structure of a pipe bending anti-wrinkle device according to the present invention; Figure 2 This is a schematic diagram of the structure of the mounting column of this utility model; Figure 3 This is a schematic diagram showing the location of the mounting slot in this utility model.

[0017] In the picture: 100. Tabletop; 101. Limiting groove; 102. Static mold; 103. Limiting bracket; 104. Limiting bolt; 105. Guide strip; 200. C-shaped frame; 201. Mounting post; 204. Anti-wrinkle plate; 205. Dovetail groove; 206. Mounting groove; 207. Dovetail tenon; 208. Fixing bolt; 209. Through hole; 210. Screw; 211. Fixing rod; 300. Pull ring; 301. Nut; 302. Spring; 303. Connecting strip; 304. Positioning ring; 305. Positioning rod; 306. Positioning hole; 307. Positioning groove; 308. Plate groove; 309. Fixing plate. Detailed Implementation

[0018] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0019] Please see Figure 1-3 This embodiment provides a pipe bending anti-wrinkle device, including a C-shaped frame 200 installed on the top of one side of a platform 100 used to support a stationary mold 102. An installation post 201 is rotatably connected to the inner cavity of the C-shaped frame 200. Several sets of installation grooves 206 are formed on the outer surface of the installation post 201. Different types of anti-wrinkle plates 204 are connected to the inner cavity of each set of installation grooves 206 via anti-detachment components. The opening of one set of anti-wrinkle plates 204 is tightly attached to the opening of the stationary mold 102. One end of the C-shaped frame 200 is provided with a mechanism for rotating the installation post 201 from... The rotating component switches to the corresponding anti-wrinkle plate 204 according to the type of pipe fitting to be bent. The bottom of the C-shaped frame 200 is installed on the surface of the table 100 through the connector. The mounting column 201 is set inside the C-shaped frame 200 and multiple sets of mounting grooves 206 with different types of anti-wrinkle plates 204 are set on the mounting column 201. With the rotating component, the anti-wrinkle plate 204 can be quickly switched, which can adapt to the processing needs of different types of pipe fittings to be bent, and improve the versatility and applicability of the equipment.

[0020] The rotating component includes a fixing rod 211 rotatably inserted into the end of the C-shaped frame 200. One end of the fixing rod 211 extends into the inner cavity of the C-shaped frame 200 and is fixedly connected to the corresponding end of the mounting post 201. A positioning ring 304 is slidably sleeved on the surface of the other end of the fixing rod 211. The inner cavity of the positioning ring 304 is provided with a snap-fit ​​component that snaps into the surface of the fixing rod 211. A positioning rod 305 is fixedly connected to the inner end of the positioning ring 304. A positioning hole 306 is opened on the surface of one end of the C-shaped frame 200 for the positioning rod 305 to pass through. A positioning groove 307 is opened at the end of the mounting post 201 and on the inner side of each set of mounting grooves 206. An elastic pusher is provided on the outer side to push the positioning ring 304 inward so that its end is inserted into the inner cavity of the corresponding side positioning groove 307 to fix the mounting post 201. Through the setting of the rotating part, the cooperation of the fixing rod 211, positioning ring 304, positioning rod 305, positioning hole 306, positioning groove 307 and elastic pusher can not only easily release the fixing of the mounting post 201 to realize rotation switching, but also automatically push the positioning ring 304 to reset after the switching is completed by the elastic pusher, so that the positioning rod 305 is inserted into the positioning hole 306 and positioning groove 307, and quickly complete the fixing of the mounting post 201. The operation is simple and efficient, and the fixing is reliable, ensuring the stability of the anti-wrinkle plate 204 during operation.

[0021] The snap-fit ​​component includes a fixing piece 309 fixedly connected to the inner wall of the top of the positioning ring 304. The top surface of the other end of the fixing rod 211 has a slot 308 for the fixing piece 309 to slide left and right. One end of the fixing piece 309 extends into the slot 308 and can slide left and right along the slot 308. Through the snap-fit ​​component, the sliding engagement between the fixing piece 309 and the slot 308 allows the positioning ring 304 to remain connected to the fixing rod 211 when it moves axially along the fixing rod 211. This effectively restricts the rotation of the positioning ring 304, ensuring that the positioning ring 304 only moves axially. This avoids positioning deviations caused by the rotation of the positioning ring 304, ensures accurate engagement between the positioning rod 305 and the positioning hole 306 and the positioning slot 307, and improves the stability and reliability of the structure.

[0022] The elastic pusher includes a screw 210 fixedly connected to the other end of the fixed rod 211. A pull ring 300 is sleeved in the middle of the screw 210. Connecting strips 303 are fixedly connected to the upper and lower parts of the inner side of the pull ring 300. The other ends of the two sets of connecting strips 303 are fixedly connected to the corresponding positions of the positioning ring 304. A nut 301 is threadedly connected to the other end of the screw 210. A spring 302 is sleeved on the surface of the screw 210 between the pull ring 300 and the nut 301. With the spring 302, when the pull ring 300 is pulled, the spring 302 is compressed and stores elastic potential energy. After being released, the spring 302 resets and can automatically push the pull ring 300 to drive the positioning ring 304 to reset, realizing the automatic insertion and fixing of the positioning rod 305 without manual operation, simplifying the operation steps. Moreover, the elastic force of the spring 302 can ensure the stable connection of the positioning ring 304, enhancing the automatic reset capability and fixing effect of the structure.

[0023] The anti-detachment component includes dovetail grooves 205 respectively opened on the inner wall of each set of mounting grooves 206. Each set of dovetail grooves 205 has a dovetail tenon 207 slidably inserted into its inner cavity. The surface of each set of dovetail tenons 207 is fixedly connected to the surface of the corresponding side anti-wrinkle plate 204. Each set of dovetail tenons 207 is fixedly installed in the inner cavity of the corresponding side dovetail groove 205 by fasteners. Through the setting of the anti-detachment component, the sliding cooperation between the dovetail grooves 205 and the dovetail tenons 207 allows the anti-wrinkle plate 204 to be stably installed in the mounting groove 206, effectively preventing the anti-wrinkle plate 204 from falling off during use and ensuring the installation stability of the anti-wrinkle plate 204.

[0024] The fasteners include through holes 209 at the ends of each set of dovetail tenons 207. Each set of through holes 209 has a fixing bolt 208 inserted into its inner cavity. The end of each fixing bolt 208 passes through the corresponding side through hole 209 and is threaded to the inner wall of the corresponding side dovetail groove 205. Through the fasteners, the fixing bolts 208, through holes 209, and dovetail grooves 205 work together to firmly fix the dovetail tenons 207 in the dovetail grooves 205, enhancing the connection strength between the anti-wrinkle plate 204 and the mounting post 201. This prevents the anti-wrinkle plate 204 from loosening or shifting during operation, ensuring the stability of the anti-wrinkle plate 204 installation. Furthermore, the bolt tightening method is simple, facilitating quick disassembly and installation of the anti-wrinkle plate 204 and making replacement and maintenance convenient.

[0025] The connector includes a guide strip 105 fixedly installed at the bottom of the C-shaped frame 200. A guide groove is provided on the top of the table 100 for the guide strip 105 to slide. The guide strip 105 is slidably connected to the inner cavity of the guide groove at the corresponding position. A limit frame 103 is fixedly installed on the lower side of the end of the C-shaped frame 200. Limit bolts 104 connected to the table 100 are provided on both sides of the limit frame 103. Through the setting of the connector, the guide strip 105 slides with the guide groove, so that the C-shaped frame 200 can move smoothly along the table 100. This facilitates the adjustment of the position of the C-shaped frame 200 and the anti-wrinkle plate 204, ensuring that the anti-wrinkle plate 204 is accurately aligned with the stationary mold 102. With the help of the limit bolts 104 and the limit frame 103, the C-shaped frame 200 can be firmly fixed in the required position, preventing the C-shaped frame 200 from moving during operation, and ensuring the alignment accuracy of the anti-wrinkle plate 204 and the stationary mold 102 and the stability of the equipment operation.

[0026] Working principle: When it is necessary to switch the corresponding anti-wrinkle plate 204 according to the model of the pipe fitting to be bent, firstly, loosen the limit bolt 104, and pull the C-shaped frame 200 outward along the limit groove 101 to make the mounting column 201 away from the stationary mold 102. At this time, the pulling ring 300 is pulled outward, which causes the positioning ring 304 to move outward along the fixing rod 211. At this time, the spring 302 is compressed, and the positioning rod 305 on the inner side of the positioning ring 304 is disengaged from the positioning hole 306 at the end of the C-shaped frame 200 and the positioning groove 307 at the end of the mounting post 201, thus releasing the fixing of the mounting post 201. Because the positioning ring 304 slides with the groove 308 on the surface of the fixing rod 211 through the fixing plate 309 on its top inner wall, it remains connected to the fixing rod 211, ensuring that the positioning ring 304 can only move along the axial direction of the fixing rod 211 without rotating. Subsequently, the positioning ring 304 is rotated, and the mounting post 201 is rotated via the fixing rod 211, so that the anti-wrinkle plate 204 of the corresponding model on the mounting post 201 is rotated to the position opposite to the opening of the stationary mold 102. At this time, the pull ring 300 is released, the spring 302 is reset and pushes the pull ring 300 to move inward. The positioning ring 304 is driven to move inward along the fixing rod 211 via the connecting strip 303, so that the positioning rod 305 on the inner side of the positioning ring 304 passes through the positioning hole 306 of the C-shaped frame 200 and is inserted into the positioning groove 307 of the corresponding position of the mounting post 201, and the mounting post 201 is fixed again. Furthermore, the C-shaped frame 200 is pushed back inward along the guide groove so that the opening of the corresponding anti-wrinkle plate 204 is aligned with the stationary mold 102, and the end of the limiting bolt 104 is passed downward through the limiting member and connected to the surface of the table 100. When the anti-wrinkle plate 204 needs to be replaced after long-term use, locate the fixing bolt 208 at the end of the dovetail tenon 207 corresponding to the anti-wrinkle plate 204 to be replaced, unscrew the fixing bolt 208 to release the fixation between the dovetail tenon 207 and the dovetail groove 205, slide the old anti-wrinkle plate 204 out of the mounting groove 206 of the mounting post 201 and remove it along the direction of the dovetail groove 205, align the dovetail tenon 207 on the surface of the new anti-wrinkle plate 204 with the dovetail groove 205 on the inner wall of the mounting groove 206, slide the new anti-wrinkle plate 204 into the mounting groove 206 along the direction of the dovetail groove 205, ensure that the anti-wrinkle plate 204 fits in place with the mounting groove 206, insert the fixing bolt 208 into the through hole 209, pass the end of the bolt through the through hole 209 and thread it to the inner wall of the corresponding side dovetail groove 205, tighten the fixing bolt 208 to complete the fixed installation of the new anti-wrinkle plate 204.

[0027] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A pipe bending anti-wrinkle device, characterized in that, The system includes a C-shaped frame (200) installed on the top of one side of a table (100) used to support a stationary mold (102). The inner cavity of the C-shaped frame (200) is rotatably connected to a mounting post (201). The outer circular surface of the mounting post (201) is provided with several sets of mounting grooves (206). The inner cavity of each set of mounting grooves (206) is connected to a different type of anti-wrinkle plate (204) through an anti-detachment component. The opening of one set of anti-wrinkle plates (204) is in close contact with the opening of the stationary mold (102). One end of the C-shaped frame (200) is provided with a rotating component for rotating the mounting post (201) to switch to the corresponding type of anti-wrinkle plate (204) according to the type of pipe fitting that needs to be bent. The bottom of the C-shaped frame (200) is installed on the surface of the table (100) through a connector.

2. The anti-wrinkle device for pipe bending according to claim 1, characterized in that: The rotating component includes a fixing rod (211) that is rotatably inserted into the end of the C-shaped frame (200). One end of the fixing rod (211) extends into the inner cavity of the C-shaped frame (200) and is fixedly connected to the corresponding side end of the mounting post (201). A positioning ring (304) is slidably sleeved on the surface of the other end of the fixing rod (211). The inner cavity of the positioning ring (304) is provided with a snap-fit ​​element that snaps into the surface of the fixing rod (211). The inner end of the positioning ring (304) is... A positioning rod (305) is fixedly connected. A positioning hole (306) is opened on one end surface of the C-shaped frame (200) for the positioning rod (305) to pass through. A positioning groove (307) is opened at the end of the mounting post (201) and on the inner side of each set of mounting grooves (206). An elastic pusher is provided on the outer side of the positioning ring (304) to push the positioning ring (304) inward so that its end is inserted into the inner cavity of the corresponding side positioning groove (307) to fix the mounting post (201).

3. The anti-wrinkle device for pipe bending according to claim 2, characterized in that: The snap-fit ​​component includes a fixing piece (309) fixedly connected to the inner wall of the top of the positioning ring (304). The top surface of the other end of the fixing rod (211) is provided with a slot (308) for the fixing piece (309) to slide left and right. One end of the fixing piece (309) extends into the slot (308) and can slide left and right along the slot (308).

4. The anti-wrinkle device for pipe bending according to claim 3, characterized in that: The elastic pusher includes a screw (210) fixedly connected to the other end of the fixed rod (211). A pull ring (300) is sleeved in the middle of the screw (210). Connecting strips (303) are fixedly connected to the upper and lower parts of the inner side of the pull ring (300). The other ends of the two sets of connecting strips (303) are fixedly connected to the corresponding positions of the positioning ring (304). A nut (301) is threadedly connected to the other end of the screw (210). A spring (302) is sleeved on the surface of the screw (210) located between the pull ring (300) and the nut (301).

5. The anti-wrinkle device for pipe bending according to claim 1, characterized in that: The anti-detachment component includes dovetail grooves (205) respectively opened on the inner wall of each set of mounting grooves (206). Each set of dovetail grooves (205) has a dovetail tenon (207) slidably inserted into its inner cavity. The surface of each set of dovetail tenons (207) is fixedly connected to the surface of the corresponding side anti-wrinkle plate (204). Each set of dovetail tenons (207) is fixedly installed in the inner cavity of the corresponding side dovetail groove (205) by a fastener.

6. The anti-wrinkle device for pipe bending according to claim 5, characterized in that: The fastener includes a through hole (209) at the end of each set of dovetail tenons (207), and a fixing bolt (208) is inserted into the inner cavity of each set of through holes (209). The end of each set of fixing bolts (208) passes through the corresponding side through hole (209) and is threaded to the inner wall of the corresponding side dovetail groove (205).

7. The anti-wrinkle device for pipe bending according to claim 1, characterized in that: The connector includes a guide strip (105) fixedly installed at the bottom of the C-shaped frame (200). The top of the table (100) is provided with a guide groove for the guide strip (105) to slide. The guide strip (105) is slidably connected to the inner cavity of the guide groove at the corresponding position. A limit frame (103) is fixedly installed on the lower side of the end of the C-shaped frame (200). Limit bolts (104) connected to the table (100) are provided on both sides of the limit frame (103).

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