Automatic edge curling device for steel door panel

Abstract

The utility model relates to the technical field of door plate hemming equipment, in particular to an automatic hemming device for a steel door panel, which is characterized in that a clamping hemming device is arranged to clamp the hemming position of a door plate, so that the door plate is prevented from being stressed to be inclined during hemming, the hemming quality is improved, and the hemming quality is improved by arranging the clamping hemming device and the hemming device. The edge of the door plate is continuously curled, and the machining efficiency is improved; comprising a body; the hemming machine comprises a machine body and further comprises a clamping hemming device, a positioning device, a hemming device, an electric heater and two fans, the clamping hemming device and the electric heater are both installed on the machine body, the positioning device and the two fans are both installed on the clamping hemming device, and the hemming device is installed on the machine body and the clamping hemming device.

Description

Technical Field

[0001] This utility model relates to the technical field of door panel edge rolling equipment, and in particular to an automatic edge rolling device for steel door panels. Background Technology

[0002] Door panels are usually produced by cutting and shaping. To prevent workers from getting cut and to increase the strength of the door panel edges, the door panels need to be rolled.

[0003] Existing door panel rolling equipment, such as the Chinese utility model patent CN222036439U, which describes a cabinet door edge rolling device for power distribution cabinet production, represents a class of prior art. Its main structure includes an operating table assembly, a fixing mechanism, and a rolling mechanism. The operating table assembly prevents the door panel from rolling, the fixing mechanism fixes the door panel, and the rolling mechanism rolls the edge of the door.

[0004] However, existing technology and equipment still have the following problems when in use: existing machines apply lateral force to the board when rolling the edges, causing the rolled edge position to be skewed and the rolled edge quality to be poor; and the board needs to be flipped over and processed a second time before the rolled edge operation can be completed, resulting in low processing efficiency. Utility Model Content

[0005] To solve the above-mentioned technical problems, this utility model provides an automatic edge-rolling device for steel door panels. By setting up a clamping edge-rolling device, the edge-rolling position of the door panel is clamped to prevent the door panel from being skewed by force during edge-rolling, thereby improving the edge-rolling quality. Furthermore, by setting up both the clamping edge-rolling device and the edge-rolling device, the door panel is continuously edge-rolled, thereby improving processing efficiency.

[0006] This utility model discloses an automatic edge-rolling device for steel door panels, comprising a machine body; and further comprising a clamping edge-rolling device, a positioning device, an edge-rolling device, an electric heater, and two fans. The clamping edge-rolling device and the electric heater are both mounted on the machine body, the positioning device and the two fans are both mounted on the clamping edge-rolling device, and the edge-rolling device is mounted on both the machine body and the clamping edge-rolling device. The machine body places the door panel, the clamping edge-rolling device clamps and rolls the edge of the door panel, the positioning device positions the edge-rolling position of the door panel, the edge-rolling device rolls the edge of the door panel, the electric heater heats the door panel, and the fans clean the debris generated on the door panel due to edge rolling.

[0007] Preferably, the machine body includes multiple support bases, a bracket, and a worktable. The bracket is installed on the top of the multiple support bases, and the worktable is installed on the top of the bracket. The worktable is used to place the door panel.

[0008] Preferably, the clamping and rolling device includes two brackets, two hydraulic cylinders, four sets of guide rods, and two top blocks. The two brackets are installed on the top of the brackets and are located on the left and right sides of the worktable. Each bracket has two sets of through holes. The two hydraulic cylinders are installed on the two brackets. The four sets of guide rods are slidably installed in the four sets of through holes of the two brackets. The two top blocks are installed at the bottom of the two hydraulic cylinders and the four sets of guide rods, and the rear end of the top block has a rounded corner. The hydraulic cylinders provide power to drive the top blocks to move up and down. When the top blocks move down, they clamp the door panel. When the top blocks move down, they can rise to make room for the edge of the door panel. Then, when the top blocks move down, they press the edge of the door panel to the surface of the door panel, thus completing the rolling of the door panel. The rounded corner prevents the top blocks from putting excessive pressure on a local part of the door panel, thus preventing the door panel from cracking during the rolling process.

[0009] Preferably, the positioning device includes a top block two, two guide rods two, a bracket three, a lead screw, a sprocket one, a sprocket two, a chain, and a handwheel. The two guide rods two are respectively fixedly installed at the rear ends of the two brackets two. The top block two is slidably installed on the two guide rods two. The bracket three is fixedly installed at the rear ends of the two guide rods two, and a through hole two is provided in the middle of the bracket three. The lead screw is rotatably installed at the rear end of the top block two, and there is a sliding fit between the lead screw and the through hole two of the bracket three. The sprocket one is rotatably installed at the rear end of the through hole two of the bracket three, and the sprocket one is slidably fitted on the lead screw. There is a threaded fit between the lead screw and the sprocket one. The sprocket two is rotatably installed at the rear end of the bracket three. The chain is installed on the sprocket one and the sprocket two. The handwheel is fixedly installed at the rear end of the sprocket two. When the handwheel is manually turned, the power is transmitted through the sprocket two, the chain, the sprocket one, and the lead screw, driving the top block two to move back and forth, adjusting the top block two to the appropriate position to position the rolled edge of the door panel.

[0010] Preferably, the hemming device includes three sets of brackets four, a hydraulic cylinder two, two brackets five, two sets of guide rods three, a top block three, a hydraulic cylinder three, two brackets six, and a top block four. The three sets of brackets four are respectively installed at the rear ends of the two brackets two and the hydraulic cylinder one. The hydraulic cylinder two and the two brackets five are respectively fixedly installed at the bottom ends of the three sets of brackets four. Each of the two brackets five is provided with a set of through holes three. The two sets of guide rods three are respectively slidably installed in the two sets of through holes three of the two brackets five. The top block three is installed at the front end of the hydraulic cylinder two and the two sets of guide rods three, and the bottom end of the top block three is provided with a rounded corner two. The hydraulic cylinder three and the two brackets six are both fixedly installed on the bracket one. A set of guide rods four are slidably installed on the frame six. The top block four is installed on the top of the two sets of guide rods four of the hydraulic cylinder three and the two supports six, and the top of the top block four is provided with rounded corners three. The hydraulic cylinder three provides power to drive the top block four to move up and down. The top block four moves up and folds the edge of the door panel upward. The rounded corners three prevent the top block four from putting too much pressure on the local part of the door panel, which can prevent the door panel from cracking when rolling the edge. Then, the hydraulic cylinder two is opened, and the hydraulic cylinder two provides power to drive the top block three to move back and forth. The top block three moves forward and folds the edge of the door panel forward. The rounded corners two prevent the top block three from putting too much pressure on the local part of the door panel, which can prevent the door panel from cracking when rolling the edge.

[0011] Preferably, the rear end of the workbench is further provided with an installation groove, and the electric heater is fixedly installed in the installation groove of the workbench; the electric heater heats the rolled edge of the door panel, improving the plasticity of the door panel and improving the quality of the rolled edge.

[0012] Preferably, each of the two brackets has a mounting groove at its bottom, and the two fans are fixedly installed in the two mounting grooves of the two brackets; the fans provide airflow to clean the debris generated on the door panel due to the rolled edges.

[0013] Compared with the prior art, the beneficial effects of this utility model are as follows: by clamping the edge of the door panel, the door panel can be prevented from being skewed by force during edge rolling, resulting in higher edge rolling quality; and the door panel can be continuously rolled in one clamping process, resulting in higher processing efficiency. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the isometric structure of this utility model;

[0015] Figure 2 This is an isometric structural diagram of the fuselage;

[0016] Figure 3 This is an isometric structural diagram of the clamping and curling device;

[0017] Figure 4 This is a schematic diagram of the isometric cross-sectional structure of the positioning device;

[0018] Figure 5This is a partial isometric sectional view of the positioning device.

[0019] Figure 6 This is an isometric structural diagram of the edge-rolling device;

[0020] Figure 7 This is a partial isometric structural schematic diagram of the hemming device;

[0021] Figure 8 This is an isometric structural diagram of an electric heater;

[0022] Figure 9 This is an isometric structural diagram of the wind turbine.

[0023] The attached diagram is labeled as follows: 01, machine body; 11, support base; 12, bracket one; 13, worktable; 02, clamping and curling device; 21, bracket two; 22, hydraulic cylinder one; 23, guide rod one; 24, top block one; 03, positioning device; 31, top block two; 32, guide rod two; 33, bracket three; 34, lead screw; 35, sprocket one; 36, sprocket two; 37, chain; 38, handwheel; 04, curling device; 41, bracket four; 42, hydraulic cylinder two; 43, bracket five; 44, guide rod three; 45, top block three; 46, hydraulic cylinder three; 47, bracket six; 48, top block four; 05, electric heater; 06, fan. Detailed Implementation

[0024] To facilitate understanding of this utility model, a more complete description will be given below with reference to the accompanying drawings. This utility model can be implemented in many different forms and is not limited to the embodiments described herein. Rather, these embodiments are provided to make the disclosure of this utility model more thorough and complete.

[0025] Example 1

[0026] like Figure 1 As shown, the device includes a body 01; it also includes a clamping and rolling edge device 02, a positioning device 03, a rolling edge device 04, an electric heater 05, and two fans 06. The clamping and rolling edge device 02 and the electric heater 05 are both mounted on the body 01. The positioning device 03 and the two fans 06 are both mounted on the clamping and rolling edge device 02. The rolling edge device 04 is mounted on both the body 01 and the clamping and rolling edge device 02. The body 01 places the door panel, the clamping and rolling edge device 02 clamps and rolls the door panel, the positioning device 03 positions the rolled edge of the door panel, the rolling edge device 04 rolls the door panel, the electric heater 05 heats the door panel, and the fans 06 clean the debris generated on the door panel due to the rolling edge.

[0027] like Figure 2As shown, the machine body 01 includes multiple support bases 11, a bracket 12 and a worktable 13. The bracket 12 is installed on the top of the multiple support bases 11, and the worktable 13 is installed on the top of the bracket 12.

[0028] like Figure 3 As shown, the clamping and curling device 02 includes two brackets 21, two hydraulic cylinders 22, four sets of guide rods 23, and two top blocks 24. The two brackets 21 are installed on the top of the brackets 12 and are located on the left and right sides of the worktable 13. Two sets of through holes are provided on the two brackets 21. The two hydraulic cylinders 22 are installed on the two brackets 21. The four sets of guide rods 23 are slidably installed in the four sets of through holes of the two brackets 21. The two top blocks 24 are installed at the bottom of the two hydraulic cylinders 22 and the four sets of guide rods 23, and the rear end of the top block 24 is provided with a rounded corner.

[0029] like Figure 4 and Figure 5 As shown, the positioning device 03 includes a top block 31, two guide rods 32, a bracket 33, a lead screw 34, a sprocket 35, a sprocket 36, a chain 37, and a handwheel 38. The two guide rods 32 are fixedly installed at the rear ends of the two brackets 21, and the top block 31 is slidably installed on the two guide rods 32. The bracket 33 is fixedly installed at the rear ends of the two guide rods 32, and a through hole 2 is provided in the middle of the bracket 33. The lead screw 34 is rotatably installed at the rear end of the top block 31, and the lead screw 34 and the through hole 2 of the bracket 33 are slidably engaged. The sprocket 35 is rotatably installed at the rear end of the through hole 2 of the bracket 33, and the sprocket 35 is slidably fitted on the lead screw 34. The lead screw 34 and the sprocket 35 are threadedly engaged. The sprocket 36 is rotatably installed at the rear end of the bracket 33. The chain 37 is installed on the sprocket 35 and the sprocket 36. The handwheel 38 is fixedly installed at the rear end of the sprocket 36.

[0030] like Figure 6 and Figure 7As shown, the hemming device 04 includes three sets of brackets 41, hydraulic cylinder 2 42, two brackets 5 43, two sets of guide rods 44, top block 45, hydraulic cylinder 3 46, two brackets 6 47, and top block 48. The three sets of brackets 41 are respectively installed at the rear ends of the two brackets 21 and the hydraulic cylinder 1 22. The hydraulic cylinder 2 42 and the two brackets 5 43 are respectively fixedly installed at the bottom ends of the three sets of brackets 41. Each of the two brackets 5 43 is provided with a set of through holes 3 and two sets of guide rods 3. 44 are slidably installed in the two sets of through holes 3 of the two brackets 43 respectively. The top block 45 is installed at the front end of the hydraulic cylinder 42 and the two sets of guide rods 44, and the bottom end of the top block 45 is provided with a rounded corner 2. The hydraulic cylinder 46 and the two brackets 47 are fixedly installed on the bracket 12. A set of guide rods 4 are slidably installed on the two brackets 47 respectively. The top block 48 is installed at the top end of the two sets of guide rods 4 of the hydraulic cylinder 46 and the two brackets 47, and the top end of the top block 48 is provided with a rounded corner 3.

[0031] First, place the door panel on top of the workbench 13. Then, turn the handwheel 38. Power is transmitted through sprocket 2 36, chain 37, sprocket 1 35, and lead screw 34, driving top block 2 31 to move back and forth. Adjust top block 2 31 to the appropriate position to position the rolled edge of the door panel. After aligning the door panel with top block 2 31, open hydraulic cylinder 1 22. Hydraulic cylinder 1 22 provides power to drive top block 1 24 to move up and down. Top block 1 24 moves down to clamp the door panel. Then, open hydraulic cylinder 3 46 and hydraulic cylinder 2 42. Hydraulic cylinder 3 46 provides power to drive top block 48 to move up and down. Top block 48 moves up to fold the edge of the door panel upwards. Rounding corner 3 prevents top block 4 from moving up. 48 applies excessive pressure to certain areas of the door panel to prevent cracking during edge rolling. Then, hydraulic cylinder 2 42 is activated, providing power to drive top block 3 45 to move back and forth. Top block 3 45 moves forward, folding the edge of the door panel forward. Rounded corner 2 prevents top block 3 45 from applying excessive pressure to certain areas of the door panel, thus preventing cracking during edge rolling. At the same time, top block 1 24 at the rear can rise during edge rolling to make room for the edge of the door panel. Then, top block 1 24 at the rear moves down to press the edge of the door panel onto the door panel surface, completing the edge rolling of the door panel. Rounded corner 1 prevents top block 1 24 from applying excessive pressure to certain areas of the door panel, thus preventing cracking during edge rolling.

[0032] Example 2

[0033] In addition to Example 1, it also includes:

[0034] like Figure 8 As shown, the rear end of the workbench 13 is also provided with a mounting groove, and the electric heater 05 is fixedly installed in the mounting groove of the workbench 13.

[0035] First, place the door panel on top of the workbench 13. Then, turn the handwheel 38. Power is transmitted through sprocket 2 36, chain 37, sprocket 1 35, and lead screw 34, driving top block 2 31 to move back and forth. Adjust top block 2 31 to the appropriate position to position the rolled edge of the door panel. After aligning the door panel with top block 2 31, open hydraulic cylinder 1 22. Hydraulic cylinder 1 22 provides power to drive top block 1 24 to move up and down. Top block 1 24 moves down to clamp the door panel. At the same time, turn on electric heater 05. Electric heater 05 heats the rolled edge of the door panel, improving the plasticity of the door panel and improving the rolled edge quality. Then, open hydraulic cylinder 3 46 and hydraulic cylinder 2 42. Hydraulic cylinder 3 46 provides power to drive top block 48 to move up and down. The top block 48 moves upward to fold the edge of the door panel upward. The rounded corner 3 prevents the top block 48 from putting excessive pressure on the local area of ​​the door panel, which can prevent the door panel from cracking when rolling the edge. Then, the hydraulic cylinder 2 42 is opened, and the hydraulic cylinder 2 42 provides power to drive the top block 3 45 to move back and forth. The top block 3 45 moves forward to fold the edge of the door panel forward. The rounded corner 2 prevents the top block 3 45 from putting excessive pressure on the local area of ​​the door panel, which can prevent the door panel from cracking when rolling the edge. At the same time, the rear top block 1 24 can rise during the rolling process to make room for the edge of the door panel. Then, the rear top block 1 24 moves down to press the edge of the door panel to the surface of the door panel, completing the rolling of the door panel. The rounded corner 1 prevents the top block 1 24 from putting excessive pressure on the local area of ​​the door panel, which can prevent the door panel from cracking when rolling the edge.

[0036] Example 3

[0037] In addition to Example 2, it also includes:

[0038] like Figure 9 As shown, each of the two brackets 21 has a mounting groove 2 at its bottom, and the two fans 06 are respectively fixedly installed in the two mounting grooves 2 of the two brackets 21;

[0039] First, place the door panel on top of the workbench 13. Then, turn the handwheel 38. Power is transmitted through sprocket 2 36, chain 37, sprocket 1 35, and lead screw 34, driving top block 2 31 to move back and forth. Adjust top block 2 31 to the appropriate position to position the rolled edge of the door panel. After aligning the door panel with top block 2 31, open hydraulic cylinder 1 22. Hydraulic cylinder 1 22 provides power to drive top block 1 24 to move up and down. Top block 1 24 moves down to clamp the door panel. At the same time, turn on electric heater 05. Electric heater 05 heats the rolled edge of the door panel, improving the plasticity of the door panel and improving the quality of the rolled edge. Then, open hydraulic cylinder 3 46 and hydraulic cylinder 2 42. Hydraulic cylinder 3 46 provides power to drive top block 48 to move up and down. Top block 48 moves up to fold the edge of the door panel upwards, rounding the corners. To prevent excessive pressure from the top block 48 on certain areas of the door panel, thus preventing cracking during edge rolling, hydraulic cylinder 2 42 is then activated. Hydraulic cylinder 2 42 provides power to drive the top block 3 45 to move back and forth. The top block 3 45 moves forward, folding the edge of the door panel forward. Rounded corner 2 prevents the top block 3 45 from causing excessive pressure on certain areas of the door panel, thus preventing cracking during edge rolling. At the same time, the rear top block 1 24 can rise during edge rolling to make room for the edge of the door panel. Then, the rear top block 1 24 moves down to press the edge of the door panel onto the door panel surface, completing the edge rolling of the door panel. Rounded corner 1 prevents the top block 1 24 from causing excessive pressure on certain areas of the door panel, thus preventing cracking during edge rolling. Simultaneously, fan 06 is activated, providing airflow to clean the debris generated on the door panel due to edge rolling.

[0040] like Figures 1 to 9As shown, this utility model discloses an automatic edge-rolling device for steel door panels. During operation, the door panel is first placed on the top of the worktable 13. Then, the handwheel 38 is turned, and power is transmitted through sprocket 2 36, chain 37, sprocket 1 35, and lead screw 34, driving top block 2 31 to move back and forth. This adjusts top block 2 31 to a suitable position to position the edge of the door panel. After aligning the door panel with top block 2 31, hydraulic cylinder 1 22 is activated, providing power to drive top block 1 24 to move up and down. Top block 1 24 moves down to clamp the door panel. Simultaneously, electric heater 05 is activated, heating the edge of the door panel to improve its plasticity and edge-rolling quality. Then, hydraulic cylinder 3 46 and hydraulic cylinder 2 42 are activated, with hydraulic cylinder 3 46 providing power to drive top block 48 to move up and down. The door panel edge is folded upwards by moving the top block 48 upwards. The rounded corner prevents the top block 48 from putting excessive pressure on the door panel, thus preventing the door panel from cracking during the folding process. Then, the hydraulic cylinder 2 42 is activated, providing power to drive the top block 3 45 to move back and forth. The top block 3 45 moves forward, folding the door panel edge forward. The rounded corner prevents the top block 3 45 from putting excessive pressure on the door panel, thus preventing the door panel from cracking during the folding process. At the same time, the rear top block 1 24 can rise during the folding process to make room for the door panel edge. Then, the rear top block 1 24 moves down to press the door panel edge against the door panel surface, completing the folding process. The rounded corner prevents the top block 1 24 from putting excessive pressure on the door panel, thus preventing the door panel from cracking during the folding process. At the same time, the fan 06 is activated, providing airflow to clean the debris generated on the door panel due to the folding process.

[0041] The two hydraulic cylinders 22, lead screw 34, sprocket 35, sprocket 36, chain 37, hydraulic cylinder 42, hydraulic cylinder 46, electric heater 05, and two fans 06 of this utility model are commercially available. Technical personnel in this industry only need to install and operate them according to the accompanying instruction manual, without requiring any creative work from those skilled in the art.

[0042] The main functions achieved by this utility model are: by setting the clamping and rolling edge device 02, the rolling edge position of the door panel is clamped to prevent the door panel from being skewed by force during rolling, thereby improving the rolling edge quality; and by setting the clamping and rolling edge device 02 and the rolling edge device 04, the door panel is continuously rolled, thereby improving processing efficiency; it solves the existing technical problems that when the existing machine rolls the edge, it applies lateral force to the board, resulting in skewed rolling edge position and poor rolling edge quality; and that the board needs to be flipped and processed twice to complete the rolling edge operation, resulting in low processing efficiency.

[0043] The above description is only a preferred embodiment of the present utility model. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the technical principles of the present utility model, and these improvements and modifications should also be considered within the protection scope of the present utility model.

Claims

1. An automatic edge-rolling device for steel door panels, comprising a machine body (01); characterized in that, It also includes a clamping and rolling edge device (02), a positioning device (03), a rolling edge device (04), an electric heater (05), and two fans (06). The clamping and rolling edge device (02) and the electric heater (05) are both installed on the body (01). The positioning device (03) and the two fans (06) are both installed on the clamping and rolling edge device (02). The rolling edge device (04) is installed on the body (01) and the clamping and rolling edge device (02). The body (01) places the door panel, the clamping and rolling edge device (02) clamps and rolls the door panel, the positioning device (03) positions the rolled edge of the door panel, the rolling edge device (04) rolls the door panel, the electric heater (05) heats the door panel, and the fans (06) clean the debris generated on the door panel due to the rolling edge.

2. The automatic edge-rolling device for steel door panels as described in claim 1, characterized in that, The machine body (01) includes multiple support bases (11), a bracket (12) and a worktable (13). The bracket (12) is installed on the top of the multiple support bases (11), and the worktable (13) is installed on the top of the bracket (12).

3. The automatic edge-rolling device for steel door panels as described in claim 2, characterized in that, The clamping and curling device (02) includes two brackets (21), two hydraulic cylinders (22), four sets of guide rods (23), and two top blocks (24). The two brackets (21) are installed on the top of the brackets (12) and are located on the left and right sides of the worktable (13). Two sets of through holes are provided on the two brackets (21). The two hydraulic cylinders (22) are installed on the two brackets (21). The four sets of guide rods (23) are slidably installed in the four sets of through holes of the two brackets (21). The two top blocks (24) are installed at the bottom of the two hydraulic cylinders (22) and the four sets of guide rods (23), and the rear end of the top block (24) is provided with a rounded corner.

4. The automatic edge-rolling device for steel door panels as described in claim 3, characterized in that, The positioning device (03) includes a top block (31), two guide rods (32), a bracket (33), a lead screw (34), a sprocket (35), a sprocket (36), a chain (37), and a handwheel (38). The two guide rods (32) are fixedly installed at the rear ends of the two brackets (21), and the top block (31) is slidably installed on the two guide rods (32). The bracket (33) is fixedly installed at the rear ends of the two guide rods (32), and a through hole (2) is provided in the middle of the bracket (33). The lead screw (34) rotates and is mounted on the back of the two guide rods (32). Installed at the rear end of top block two (31), and the lead screw (34) and the through hole two of bracket three (33) are slidably fitted. Sprocket one (35) is rotatably installed at the rear end of the through hole two of bracket three (33), and sprocket one (35) is slidably fitted on the lead screw (34). The lead screw (34) and sprocket one (35) are threadedly fitted. Sprocket two (36) is rotatably installed at the rear end of bracket three (33). Chain (37) is installed on sprocket one (35) and sprocket two (36). Handwheel (38) is fixedly installed at the rear end of sprocket two (36).

5. The automatic edge-rolling device for steel door panels as described in claim 4, characterized in that, The hemming device (04) includes three sets of four supports (41), two hydraulic cylinders (42), two sets of five supports (43), two sets of three guide rods (44), a top block (45), a hydraulic cylinder (46), two sets of six supports (47), and a top block (48). The three sets of four supports (41) are respectively installed on the rear ends of the two sets of two supports (21) and the hydraulic cylinder (22) at the rear. The hydraulic cylinder (42) and the two sets of five supports (43) are respectively fixedly installed on the bottom ends of the three sets of four supports (41). Each of the two sets of five supports (43) is provided with a set of three through holes and two sets of three guide rods. (44) are slidably installed in the two sets of through holes three of the two brackets five (43). The top block three (45) is installed at the front end of the hydraulic cylinder two (42) and the two sets of guide rods three (44), and the bottom end of the top block three (45) is provided with rounded corner two. The hydraulic cylinder three (46) and the two brackets six (47) are fixedly installed on the bracket one (12). A set of guide rods four are slidably installed on the two brackets six (47). The top block four (48) is installed at the top end of the two sets of guide rods four of the hydraulic cylinder three (46) and the two brackets six (47), and the top end of the top block four (48) is provided with rounded corner three.

6. The automatic edge-rolling device for steel door panels as described in claim 5, characterized in that, The workbench (13) is also provided with a mounting groove at its rear end, and the electric heater (05) is fixedly installed in the mounting groove of the workbench (13).

7. The automatic edge-rolling device for steel door panels as described in claim 6, characterized in that, The bottom of each of the two brackets (21) is provided with an installation groove, and the two fans (06) are respectively fixedly installed in the two installation grooves of the two brackets (21).

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