Electric heating tube extrusion bending machine

Abstract

The utility model provides an electric heating tube extrusion bending machine, which relates to the technical field of electric heating tube processing equipment and comprises a main working face, a bending rotating frame and a bending die frame, the bending rotating frame is arranged in the middle of the main working face, the head end of the bending rotating frame is rotatably connected with the bending die frame, an upper moving frame is horizontally and slidably arranged on the upper portion of the bending rotating frame, and a lower moving frame is arranged on the lower portion of the bending rotating frame. A second telescopic cylinder is arranged between the bending rotating frame and the upper moving frame, a first connecting rod is fixed to the top of the upper moving frame, the first connecting rod axially penetrates through an outer extrusion wheel and is fastened through a nut, and a first worm wheel is fixedly arranged on the lower side of the head end of the bending rotating frame. The electric heating tube is bent along the inner bending die discs with different diameters through lifting of the inner bending die discs and the outer extrusion wheel, so that the bending radian is quickly adjusted, the manual adjustment procedure of personnel on the inner bending die discs and the outer extrusion wheel is omitted, and the problems that after the disc size is changed every time, the number of parts needing to be adjusted is large, and the working efficiency is high are solved. And the debugging time is long.

Description

Technical Field

[0001] This utility model relates to the technical field of electric heating tube processing equipment, and in particular to an electric heating tube extrusion and bending machine. Background Technology

[0002] Electric heating elements generate heat when an electric current passes through a conductor. To improve the heating efficiency of electric heating elements, they are processed into a bent state by an extrusion and bending machine. Bending extends the length of the electric heating element and increases the heating capacity per unit area.

[0003] Existing extrusion bending machines use extrusion rollers to press the heating tubes into an arc shape along the inner disc. The bending arc of the heating tubes is adjusted by changing the size of the disc. However, when the disc size changes, the outer extrusion rollers also need to be adjusted, and the position of the heating tubes also needs to be adjusted simultaneously. This results in a large number of parts needing adjustment each time the disc size is changed, leading to a long debugging time. Furthermore, the automatic feeding device corresponding to the heating tubes also needs to be adjusted after the position of the heating tubes changes, further extending the debugging time. Summary of the Invention

[0004] This disclosure relates to an electric heating tube extrusion bending machine. By raising and lowering the inner bending die plate and the outer extrusion roller, the electric heating tube is bent along the inner bending die plate with different diameters, realizing the rapid adjustment of the bending arc. This eliminates the need for manual adjustment of the inner bending die plate and the outer extrusion roller, reducing debugging time and increasing the switching speed of different bending arcs. After switching, the inner bending die plate and the outer extrusion roller remain on both sides of the electric heating tube, eliminating the need to move and adjust the position of the electric heating tube. This also eliminates the need for re-matching of the automatic feeding robot arm for the electric heating tube due to position changes, greatly reducing debugging time.

[0005] In a first aspect, this disclosure provides an electric heating tube extrusion bending machine, specifically comprising: a main working surface, a bending rotating frame, and a bending die frame. The bending rotating frame is disposed in the middle of the main working surface, and the first end of the bending rotating frame is rotatably connected to the bending die frame. An electric screw is rotatably disposed in the middle of the main working surface. A feeding slide is horizontally slidable in the middle of the main working surface, and the middle part of the feeding slide is screwed to the electric screw. A positioning and fixing frame is fixedly disposed in the middle of the main working surface, and side fixing blocks are slidably disposed on the top of both the positioning and fixing frame and the feeding slide.

[0006] In at least some embodiments, both the positioning and fixing frame and the feeding slide are provided with a first telescopic rod at the top. The telescopic rod of the first telescopic rod at the top of the positioning and fixing frame is fixedly connected to the side fixing block at the top of the positioning and fixing frame, and the telescopic rod of the first telescopic rod at the top of the feeding slide is fixedly connected to the side fixing block at the top of the feeding slide.

[0007] In at least some embodiments, an upper movable frame is horizontally slidably arranged on the upper part of the bending frame, a second telescopic cylinder is arranged between the bending frame and the upper movable frame, a first connecting rod is fixed on the top of the upper movable frame, an outer extrusion wheel is axially passed through the first connecting rod and fastened by a nut, the outer extrusion wheel is disassembled and installed along the first connecting rod to adjust its size, and a first worm gear is fixedly arranged on the lower side of the first end of the bending frame.

[0008] In at least some embodiments, the bending die frame slides horizontally on top of the lower lifting frame, a third telescopic cylinder is provided between the lower lifting frame and the bending die frame, and the lower lifting telescopic cylinder is fixed at the bottom of the lower lifting frame.

[0009] In at least some embodiments, an electric worm gear is rotatably mounted on the upper part of the bending die frame, the helical teeth of the electric worm gear meshing with the tooth blocks of the first worm wheel, and a second connecting rod is fixed to the top of the bending die frame. The second connecting rod slides axially through the inner bending die disc and is fastened with a nut.

[0010] In at least some embodiments, the outer extrusion wheel is located outside the inner bending die plate. When the inner bending die plates of the second connecting rod are arranged from top to bottom in descending order of size, and the outer extrusion wheels of the first connecting rod are arranged from top to bottom in ascending order of size, the distance between the inner bending die plate and the outer extrusion wheel remains unchanged. The third telescopic cylinder supports the horizontal movement of the bending die frame, the inner bending die plate moves horizontally with the bending die frame, the second telescopic cylinder pushes the upper moving frame to move horizontally, and the outer extrusion wheel moves horizontally with the upper moving frame.

[0011] In at least some embodiments, the first end of the bending frame, the first worm gear, and the inner bending die plate are all centrally aligned. The outer extrusion wheel of the bending frame moves in a ring around the inner bending die plate to perform the extrusion bending of the heating tube. The first connecting rod is rotatably connected to the first end of the bending frame. The lower lifting telescopic cylinder is fixedly connected to the lower part of the main working surface. The lower lifting telescopic cylinder supports the bending die frame to move upward. The bending die frame and the bending frame move vertically upward synchronously.

[0012] This utility model provides an electric heating tube extrusion and bending machine, which has the following beneficial effects:

[0013] By raising and lowering the inner bending die plate and the outer extrusion roller, the heating tube is bent along the inner bending die plate with different diameters, realizing the rapid adjustment of the bending arc. This eliminates the need for manual adjustment of the inner bending die plate and the outer extrusion roller, reduces debugging time, and improves the switching speed of different bending arcs.

[0014] The inner bending die plate moves horizontally with the bending die frame, and the outer extrusion roller moves horizontally with the upper moving frame. This ensures that the inner bending die plate and the outer extrusion roller remain on both sides of the heating tube after switching, eliminating the need to move or adjust the position of the heating tube. This avoids the heating tube's position changes affecting the automatic feeding and matching, and greatly reduces debugging time. Attached Figure Description

[0015] To more clearly illustrate the technical solutions of the embodiments of this utility model, the accompanying drawings of the embodiments will be briefly described below.

[0016] The accompanying drawings described below are only related to some embodiments of the present invention and are not intended to limit the scope of the present invention.

[0017] In the attached diagram:

[0018] Figure 1 A schematic diagram of the overall structure of this application is shown;

[0019] Figure 2 A schematic diagram of the main working surface structure of this application is shown;

[0020] Figure 3 A schematic diagram of the bending frame structure of this application is shown;

[0021] Figure 4 A schematic diagram of the upper movable frame structure of this application is shown;

[0022] Figure 5 A schematic diagram of the bending die frame of this application is shown;

[0023] Figure 6 A schematic diagram of the structure in the split state of this application is shown;

[0024] List of reference numerals

[0025] 1. Main working surface; 101. Electric screw; 102. Feeding slide; 103. Side fixing block; 104. First telescopic rod; 105. Positioning and fixing frame;

[0026] 2. Bending frame; 201. Upper moving frame; 202. Second telescopic cylinder; 203. First connecting rod; 204. Outer extrusion wheel; 205. First worm gear;

[0027] 3. Bending die frame; 301. Lower lifting frame; 302. Third telescopic cylinder; 303. Lower lifting telescopic cylinder; 304. Electric worm gear; 305. Second connecting rod; 306. Inner bending die plate. Detailed Implementation

[0028] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, 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, not all, of the embodiments of this utility model. All other embodiments obtained by those skilled in the art based on the described embodiments of this utility model without creative effort are within the scope of protection of this utility model.

[0029] Example 1: Please refer to Figures 1 to 6 :

[0030] This utility model discloses an electric heating tube extrusion bending machine, comprising: a main working surface 1, a bending rotating frame 2, and a bending die frame 3. An electric screw 101 is rotatably mounted in the middle of the main working surface 1. A feeding slide 102 is horizontally slidable in the middle of the main working surface 1, with the middle of the feeding slide 102 screwed into the electric screw 101. A positioning and fixing frame 105 is fixedly mounted in the middle of the main working surface 1. Side fixing blocks 103 are slidably mounted on the top of both the positioning and fixing frame 105 and the feeding slide 102. Both the top of the feeding slide 102 and the top of the positioning and fixing frame 105 are provided with a first telescopic rod 104. The telescopic rod of the first telescopic rod 104 at the top of the positioning and fixing frame 105 is fixedly connected to the side fixing block 103 at the top of the positioning and fixing frame 105. The telescopic rod of the first telescopic rod 104 at the top of the feeding slide 102 is fixedly connected to the side fixing block 103 at the top of the feeding slide 102. A bending frame 2 is provided in the middle of the main working surface 1. An upper moving frame 201 is horizontally slidably provided on the upper part of the bending frame 2. A connection is provided between the bending frame 2 and the upper moving frame 201. A second telescopic cylinder 202 is provided. A first connecting rod 203 is fixed to the top of the upper moving frame 201. An outer extrusion wheel 204 passes axially through the first connecting rod 203 and is secured with a nut. The outer extrusion wheel 204 is disassembled and installed along the first connecting rod 203 to adjust its dimensions. A first worm gear 205 is fixedly provided on the lower side of the first end of the bending rotating frame 2. The first end of the bending rotating frame 2 is rotatably connected to the bending die frame 3. The bending die frame 3 slides horizontally on the top of the lower lifting frame 301. The lower lifting frame 301 and the bending die frame 3 are connected... A third telescopic cylinder 302 is provided in the middle, and a lower lifting telescopic cylinder 303 is fixed at the bottom of the lower lifting frame 301. An electric worm gear 304 is rotatably provided on the upper part of the bending die frame 3. The helical teeth of the electric worm gear 304 are meshed with the teeth of the first worm wheel 205. A second connecting rod 305 is fixed at the top of the bending die frame 3. The inner bending die plate 306 slides through the second connecting rod 305 axially and is fastened with a nut. The inner bending die plate 306 is disassembled and installed along the second connecting rod 305 to adjust its size.

[0031] In this embodiment, the outer extrusion roller 204 is located outside the inner bending die plate 306. When the inner bending die plate 306 of the second connecting rod 305 is arranged from top to bottom in descending order of size, and the outer extrusion roller 204 of the first connecting rod 203 is arranged from top to bottom in ascending order of size, the distance between the inner bending die plate 306 and the outer extrusion roller 204 remains constant, ensuring that the distance between the inner bending die plate 306 and the outer extrusion roller 204 meets the bending requirements of the inner heating tube. The third telescopic cylinder 302 supports the horizontal movement of the bending die frame 3. The inner bending die plate 306 moves horizontally with the bending die frame 3. The second telescopic cylinder 202 pushes the upper moving frame 201 to move horizontally. The outer extrusion roller 204 moves horizontally with the upper moving frame 201. This ensures that after the inner bending die plate 306 and the outer extrusion roller 204 are raised and lowered to switch sizes, they remain on both sides of the heating tube, eliminating the need for adjusting the position of the heating tube and the position adjustment work of the loading robot arm.

[0032] In this embodiment, the first end of the bending frame 2, the first worm gear 205, and the inner bending die disk 306 are all centrally aligned. The outer extrusion wheel 204 of the bending frame 2 moves in a ring around the inner bending die disk 306 to perform the extrusion bending of the heating tube. The first connecting rod 203 is rotatably connected to the first end of the bending frame 2. The lower lifting telescopic cylinder 303 is fixedly connected to the lower part of the main working surface 1. The lower lifting telescopic cylinder 303 supports the bending die frame 3 to move upward. The bending die frame 3 and the bending frame 2 move vertically upward synchronously. The inner bending die disk 306 and the outer extrusion wheel 204 move upward synchronously. The larger outer extrusion wheel 204 moves upward and aligns with the heating tube, achieving a larger ring bending of the heating tube.

[0033] In Example 2, based on Example 1, the first worm gear 205 and the electric worm 304 are not installed. The bending frame 2 controls the bending angle through a hydraulic telescopic cylinder. The hydraulic telescopic cylinder has greater support force and more stable operation.

[0034] The working principle of this embodiment is as follows: The automatic feeding mechanism places the heating element onto the top of the feeding slide 102. The first telescopic rod 104 of the feeding slide 102 pushes the side fixing block 103 to clamp the heating element. The feeding slide 102 moves horizontally along the external thread of the electric screw 101. The feeding slide 102 pushes the heating element past the positioning and fixing frame 105. The heating element moves between the inner bending die plate 306 and the outer extrusion roller 204. The first telescopic rod 104 of the positioning and fixing frame 105 pushes... The moving side fixing block 103 clamps the heating tube. The first telescopic rod 104 of the feeding slide 102 retracts and pulls the side fixing block 103 away from the heating tube. The feeding slide 102 moves and resets away from the heating tube, and the next side heating tube is pushed forward. The electric worm gear 304 meshes and drives the first worm wheel 205 to rotate. The first worm wheel 205, the bending frame 2, and the outer extrusion wheel 204 rotate synchronously. The outer extrusion wheel 204 extrudes the heating tube and performs a circular bend along the outer extrusion wheel 204, realizing the pressure bending operation of the heating tube.

[0035] When the bending angle of the heating element needs to be adjusted, the lower lifting telescopic cylinder 303 supports the bending die frame 3 to move upward. The bending die frame 3 and the bending rotating frame 2 rise vertically synchronously. The inner bending die plate 306 and the outer extrusion roller 204 move upward synchronously. The larger outer extrusion roller 204 moves upward and aligns with the heating element. Then, the bending rotating frame 2 and the outer extrusion roller 204 rotate. The outer extrusion roller 204 causes the heating element to undergo a larger annular bend along the larger outer extrusion roller 204. By raising and lowering the inner bending die plate 306 and the outer extrusion roller 204, the inner bending die plate 306 of different sizes is aligned with the heating element. The heating element is bent along the inner bending die plate 306 of different diameters, realizing the rapid adjustment of the bending arc and eliminating the need for manual adjustment of the inner bending die plate 306. The manual adjustment process of bending die plate 306 and outer extrusion roller 204 reduces debugging time and improves the switching speed of different bending arcs. The third telescopic cylinder 302 supports the horizontal movement of bending die frame 3, and the inner bending die plate 306 moves horizontally with the bending die frame 3. The second telescopic cylinder 202 pushes the upper moving frame 201 to move horizontally, and the outer extrusion roller 204 moves horizontally with the upper moving frame 201. After the inner bending die plate 306 and outer extrusion roller 204 are raised and lowered to switch sizes, they are kept on both sides of the heating tube. There is no need to move and adjust the position of the heating tube. This avoids the heating tube affecting the feeding position matching of automatic robotic arms and other equipment due to position changes. Automatic robotic arms and other equipment do not need to be adjusted, and debugging time is greatly reduced.

[0036] The following points should be noted in this article:

[0037] 1. The accompanying drawings of the embodiments disclosed herein only involve structures relevant to the embodiments disclosed herein; other structures may refer to general designs.

[0038] 2. Where there is no conflict, the embodiments of this disclosure and the features in the embodiments can be combined with each other to obtain new embodiments.

[0039] The above are merely specific embodiments of this disclosure, but the scope of protection of this disclosure is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the scope of the technology disclosed in this disclosure should be included within the scope of protection of this disclosure. Therefore, the scope of protection of this disclosure should be determined by the scope of the claims.

Claims

1. An electrothermal tube extrusion bender comprising: The utility model relates to a kind of electric heating tube extrusion bending machines, including main working surface (1), bending rotary table (2) and bending die frame (3);Its characterized in that, the middle part of main working surface (1) is provided with bending rotary table (2), the first end of bending rotary table (2) and bending die frame (3) rotationally connected, upper moving frame (201) is horizontally slidably arranged on the upper part of bending rotary table (2), second telescopic cylinder (202) is arranged between bending rotary table (2) and upper moving frame (201), the top of upper moving frame (201) is fixed with first connecting rod (203), first connecting rod (203) is axially penetrated with outer extrusion wheel (204) and is fastened by nut, the first end of bending rotary table (2) is fixedly provided with first worm wheel (205) on the lower side.

2. The electric heating tube extrusion bending machine according to claim 1, wherein, The middle part of main working surface (1) is rotationally provided with electric screw (101), the middle part of main working surface (1) is horizontally slidably provided with feeding slide (102), the middle part of feeding slide (102) is screwedly connected with electric screw (101), the middle part of main working surface (1) is fixedly provided with positioning fixing frame (105), the top of positioning fixing frame (105) and feeding slide (102) is slidably provided with side fixing block (103).

3. The electric heating tube extrusion bending machine according to claim 2, wherein, The top of positioning fixing frame (105) and feeding slide (102) is provided with first telescopic rod (104), the telescopic rod of first telescopic rod (104) on the top of positioning fixing frame (105) is fixedly connected with side fixing block (103) on the top of positioning fixing frame (105), the telescopic rod of first telescopic rod (104) on the top of feeding slide (102) is fixedly connected with side fixing block (103) on the top of feeding slide (102).

4. The electric heating tube extrusion bending machine according to claim 1, wherein, Bending die frame (3) is horizontally slidably arranged on the top of lower lifting frame (301), third telescopic cylinder (302) is arranged between lower lifting frame (301) and bending die frame (3), lower lifting telescopic cylinder (303) is fixedly arranged on the bottom of lower lifting frame (301).

5. The electric heating tube extrusion bending machine according to claim 4, wherein, The top of bending die frame (3) is fixedly provided with second connecting rod (305), second connecting rod (305) is axially penetrated with inner bending die disc (306) and is fastened by nut.

6. The electric heating tube extrusion bending machine according to claim 5, wherein, The outer side of outer extrusion wheel (204) is in inner bending die disc (306), when inner bending die disc (306) of second connecting rod (305) is arranged from big to small from top to bottom, outer extrusion wheel (204) of first connecting rod (203) is arranged from small to big from top to bottom.

7. The electric heating tube extrusion bending machine according to claim 6, wherein, The first end of the bending turret (2) and the first worm gear (205) and the inner bending die disc (306) are centrally aligned, and the lower lifting telescopic cylinder (303) is fixedly connected with the lower part of the main working surface (1).

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