Continuous pipe bending device for heating pipe of heater
By combining positioning blocks, bending mold cores, bending wrenches, rollers, and limit stakes, continuous bending of the heater heating tube is achieved, solving the problem that existing devices are difficult to bend heating tubes with complex shapes, and improving production efficiency and dimensional accuracy.
Patent Information
- Application Number
- CN202520307890.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-02-25
- Publication Date
- 2026-01-06
- Estimated Expiration
- 2035-02-25
AI Technical Summary
Existing tube bending equipment is unable to efficiently bend long and complex-shaped heater tubes, resulting in low production efficiency and poor dimensional accuracy.
The combination structure of positioning blocks, bending mold cores, bending wrenches, rollers and limit stakes enables continuous bending of the heater heating tubes. Multiple bends are completed in one positioning and clamping operation, eliminating cumulative dimensional errors.
This significantly improves the bending efficiency of heater heating tubes, saves labor costs, reduces time by about half, and improves dimensional accuracy.
Smart Images

Figure CN223761838U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of heater heating tube bending technology, specifically relating to a continuous bending device for heater heating tubes. Background Technology
[0002] With the rapid development of science and technology and the social economy, the application scope of electric heaters in various fields is gradually expanding. However, the length of the heating tubes is getting longer and the bending shape is becoming more and more complex. Existing tube bending devices or tube bending machines are only suitable for bending heating tubes with shorter or simpler shapes. Therefore, we propose a continuous tube bending device for heater heating tubes. Utility Model Content
[0003] The purpose of this invention is to provide a continuous bending device for the heating tube of a heater, so as to solve the problems mentioned in the background art.
[0004] To achieve the above objectives, this utility model provides the following technical solution: a continuous bending device for a heater heating tube, comprising,
[0005] The base plate has through holes and rotating grooves;
[0006] A bracket, which is disposed at the bottom of the base plate;
[0007] A positioning block, which is bolted to the base plate;
[0008] A pipe bending die core, wherein the pipe bending die core is disposed on the base plate through a through hole;
[0009] A pipe bending wrench is provided on the pipe bending die core through a through hole. The pipe bending wrench is provided with a roller, and the roller rotates along the rotating groove.
[0010] A limiting post is provided in the through hole on the base plate corresponding to the radial displacement of the heater heating tube.
[0011] Preferably, the bracket is fixed to the bottom of the base plate by bolts, and the bottom of the bracket is connected to the ground or equipment by bolts.
[0012] Preferably, the positioning block has a positioning slot for engaging the heating tube of the heater.
[0013] Preferably, the bending die core includes a bending disc and a plug post;
[0014] The dimensions of the bent tube disc are manufactured according to the bending radius of the heater tube. The upper and lower surfaces of the bent tube disc are provided with the insertion posts, and the bent tube disc is inserted into the through hole on the base plate through the insertion posts.
[0015] Preferably, the pipe bending wrench has a socket hole, and the pipe bending wrench is fitted into the insertion post on the pipe bending disc through the socket hole.
[0016] Preferably, the roller is mounted on one end of the pipe bending wrench near the socket via a roller shaft and bolts.
[0017] Compared with the prior art, the beneficial effects of this utility model are:
[0018] This utility model includes a positioning block, a bending die, a bending wrench, rollers, and limiting posts. In use, the first bending die is inserted into the corresponding through hole on the base plate. Then, the heater tube is placed in the positioning slot on the positioning block, and the position of the heater tube port is determined according to the bending size requirements. A quick clamp is then used to fix the heater tube port. Next, the socket on the bending wrench is fitted into the insertion post on the first bending die, positioning the heater tube between the first bending die and the roller on the bending wrench. The bending wrench is then rotated, causing the roller to rotate along the rotating groove, completing the first bend of the heater tube. The second bending die is then placed, and the bending wrench is removed from the first bending die and fitted onto the second bending die. The bending of the heater tube continues. The second bend of the heat pipe is then performed, and the remaining bends are made in the same manner. During the bending process, limit stakes are inserted into the base plate at locations where the heater tubes are prone to radial displacement to prevent radial displacement during bending. After the first bend, the first bending die can be removed and used for subsequent bends. Once the heater tubes are bent, all bending dies are removed, the quick clamps are released, and the heater tubes are taken out. This process greatly improves the bending efficiency of extra-long heater tubes. Continuous bending of the heater tubes can be achieved through a single positioning and clamping, reducing the time to about half. This significantly saves labor, lowers production costs, and eliminates accumulated dimensional errors through a one-time bending of the overall structure, thus improving overall dimensional accuracy. Attached Figure Description
[0019] Figure 1 This is a three-dimensional structural diagram of the present invention;
[0020] Figure 2 This is a three-dimensional structural diagram of the present invention;
[0021] Figure 3 This is a three-dimensional structural diagram of the present invention.
[0022] In the diagram: 1. Base plate; 2. Through hole; 3. Rotating groove; 4. Bracket; 5. Positioning block; 501. Positioning slot; 6. Bending mold core; 601. Bending disc; 602. Insertion post; 7. Bending wrench; 701. Socket hole; 8. Roller; 9. Limiting post. Detailed Implementation
[0023] 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.
[0024] Please see Figures 1-3 The continuous bending device for the heating tube of the heater provided by this utility model includes,
[0025] Base plate 1, with through hole 2 and rotating groove 3 provided on it;
[0026] Support 4 is set at the bottom of base plate 1. Support 4 is fixed at the bottom of base plate 1 by bolts, and the bottom of support 4 is connected to the ground or equipment by bolts.
[0027] Positioning block 5 is bolted to the base plate 1. Positioning block 5 has a positioning slot 501 for engaging the heating tube of the heater.
[0028] The bending die core 6 is set on the base plate 1 through the through hole 2. The bending die core 6 includes a bending disc 601 and a plug post 602. The size of the bending disc 601 is processed according to the bending radius of the heater heating tube, and it is suitable for bending heater heating tubes of different diameters. The bending disc 601 is provided with plug posts 602 on both the upper and lower surfaces. The bending disc 601 is inserted into the through hole 2 on the base plate 1 through the plug posts 602.
[0029] A pipe bending wrench 7 is installed on the pipe bending die core 6 through the through hole 2. The pipe bending wrench 7 has a socket hole 701. The pipe bending wrench 7 is sleeved in the insertion post 602 on the pipe bending disc 601 through the socket hole 701. A roller 8 is provided on the pipe bending wrench 7. The roller 8 is installed on the end of the pipe bending wrench 7 near the socket hole 701 through the roller shaft and bolt, and the roller 8 rotates along the rotating groove 3.
[0030] Limiting stake 9 is installed in the through hole 2 on the base plate 1 corresponding to the radial displacement of the heater heating tube.
[0031] This utility model includes a positioning block 5, a bending mold core 6, a bending wrench 7, rollers 8, and limiting posts 9. In use, the first bending mold core 6 is inserted into the corresponding through hole 2 on the base plate 1. Then, the heater heating tube is placed in the positioning slot 501 on the positioning block 5, and the position of the heater heating tube port is determined according to the bending tube size requirements. A quick clamp is then used to fix the heater heating tube port. Next, the socket 701 on the bending wrench 7 is fitted into the insertion post 602 on the first bending mold core 6, so that the heater heating tube is positioned between the first bending mold core 6 and the rollers 8 on the bending wrench 7. The bending wrench 7 is then rotated, causing the rollers 8 to rotate along the rotation groove 3, completing the first bend of the heater heating tube. Then, the second bending mold core 6 is placed, and the bending wrench 7 is removed from the first bending mold core 6 and fitted onto the second bending mold core 6. On core 6, the second bend of the heater tube is then made, and so on, to bend the remaining tube shapes. During the bending process, limit pins 9 are inserted on the base plate 1 at locations where the heater tube is prone to radial displacement to prevent radial displacement during bending. After bending four times, the first bending core 6 can be removed and used for subsequent bending. Once the heater tube is bent, all bending cores 6 are removed, the quick clamp is released, and the heater tube is taken out. This greatly improves the bending efficiency of ultra-long heater tubes. Continuous bending of the heater tube can be achieved through a single positioning and clamping, reducing the time to about half, greatly saving labor and reducing production costs. Furthermore, the one-time bending of the overall structure eliminates accumulated dimensional errors and improves overall dimensional accuracy.
[0032] In summary, the method of using the continuous bending device for the heater heating tube provided in this embodiment is as follows: In use, insert the first bending die 6 into the corresponding through hole 2 on the base plate 1, then place the heater heating tube in the positioning slot 501 on the positioning block 5, and determine the position of the heater heating tube port according to the bending tube size requirements. Then, use a quick clamp to fix the heater heating tube port. Next, fit the socket 701 on the bending wrench 7 into the insertion post 602 on the first bending die 6, so that the heater heating tube is positioned between the first bending die 6 and the roller 8 on the bending wrench 7. Then, rotate the bending wrench 7 to make the roller 8 rotate along the rotating groove 3, completing the heating process. The first bend of the heater tube is made, then the second bending die 6 is placed. The bending wrench 7 is removed from the first bending die 6 and put on the second bending die 6. Then the second bend of the heater tube is made, and so on, to bend the remaining tube shapes. During the bending process, limit pins 9 are inserted on the base plate 1 at the positions where the heater tube is prone to radial displacement to prevent the heater tube from generating radial displacement during bending. After bending 4 times, the first bending die 6 can be removed. The removed bending die 6 can be used for subsequent bending. After the heater tube is bent, all bending die 6 are removed, the quick clamp is released, and the heater tube is taken out.
[0033] 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 continuous pipe bending apparatus for heating a heater tube, characterized by, The utility model relates to a heating pipe bending device, including, The bottom plate (1) is provided with through hole (2) and rotation groove (3) on, Support (4) is set in the bottom of bottom plate (1), Positioning block (5) is set on bottom plate (1) through bolt, Elbow mould core (6) is set on bottom plate (1) through through hole (2), Elbow wrench (7) is set on elbow mould core (6) through through hole (2), and the roller (8) is set on elbow wrench (7), and the roller (8) rotates along rotation groove (3), Limiting pile (9) is set in the through hole (2) of bottom plate (1) corresponding to the radial displacement of heater heating pipe.
2. A continuous pipe bending apparatus for heating pipes of a heater according to claim 1, characterized in that: Support (4) is fixedly set in the bottom of bottom plate (1) through bolt, and the bottom of support (4) is connected with flat ground or equipment through bolt.
3. A continuous pipe bending apparatus for heating tubes of a heater according to claim 1, characterized in that: Positioning slot (501) for clamping heater heating pipe is set on positioning block (5).
4. A continuous pipe bending apparatus for heating tubes of a heater according to claim 1, characterized in that: Elbow mould core (6) includes elbow disc (601) and plug-in post (602), The size of elbow disc (601) is processed according to the bending radius of heater heating pipe, and the upper and lower surfaces of elbow disc (601) are provided with plug-in post (602), and elbow disc (601) is inserted in through hole (2) on bottom plate (1) through plug-in post (602).
5. A continuous pipe bending apparatus for heating tubes of a heater according to claim 4, characterized in that: The sleeve joint hole (701) is set on elbow wrench (7), and elbow wrench (7) is sleeved in plug-in post (602) on elbow disc (601) through sleeve joint hole (701).
6. A continuous pipe bending apparatus for heating tubes of a heater according to claim 5, characterized in that: The roller (8) is set on one end of elbow wrench (7) close to sleeve joint hole (701) through roller shaft and bolt.