A pipe bending mechanism for bending an electric heating pipe to form a U shape

Abstract

The utility model discloses a kind of for bending electric heating pipe to form the pipe bending mechanism of U shape, comprising: fixed module, including two jigs, two The jigs are oppositely arranged, and passage is formed between two The jigs, and the same side of two The jigs can place transversely extended electric heating pipe;Translation module, including first drive assembly and moving mould, the first drive assembly is used to drive the moving mould moves, the moving mould can abut electric heating pipe and be away from the side of fixed module, and can pass through the passage, so that the moving mould and two The jigs cooperate bending electric heating pipe, to form the electric heating pipe of U shape.The utility model can solve the problem that the relative two pipe portions of U-shaped electric heating pipe after processing are not parallel, improve the consistency of each bent electric heating pipe, and improve processing stability.

Description

Technical Field

[0001] This utility model relates to the technical field of electric heating tube production equipment, and in particular to a bending mechanism for bending electric heating tubes into a U-shape. Background Technology

[0002] Currently, tube bending machines are commonly used to perform U-shaped bending of electric heating tubes. A typical tube bending machine consists of a fixed die and a movable die that can rotate circumferentially around the fixed die. During processing, the straight tubular electric heating tube to be bent is placed at a predetermined position between the fixed die and the movable die. Under the action of a drive mechanism, the movable die rotates around the central axis of the fixed die. During this process, the electric heating tube is pressed between the fixed die and the movable die. As the movable die rotates, the electric heating tube undergoes plastic deformation under the contour constraint of the fixed die, and is eventually bent into the desired U-shape.

[0003] However, the U-shaped heating tubes processed by existing tube bending machines often fail to achieve an ideal parallel state between their two opposite sections. They usually exhibit varying degrees of inward or outward tilting, known as the flared or tapered opening phenomenon, or a certain angle.

[0004] Therefore, it is necessary to design a pipe bending mechanism to solve the above problems. Utility Model Content

[0005] This invention aims to solve at least one of the technical problems existing in the prior art. To this end, this invention proposes a bending mechanism for bending heating tubes into a U-shape, which can solve the problem of the two opposite sections of the processed U-shaped heating tube not being parallel, improve the consistency of each bent heating tube, and enhance processing stability.

[0006] A bending mechanism for bending an electric heating tube to form a U-shape according to a first aspect embodiment of the present invention includes: a fixed module including two templates, the two templates being disposed opposite each other and forming a channel between the two templates, wherein a laterally extending electric heating tube can be placed on the same side of the two templates; and a translation module including a first driving component and a moving module, the first driving component being used to drive the moving module to move, the moving module being able to abut against the side of the electric heating tube away from the fixed module and being able to pass through the channel, so that the moving module and the two templates cooperate to bend the electric heating tube to form a U-shaped electric heating tube.

[0007] A bending mechanism for bending electric heating tubes into a U-shape according to an embodiment of the present invention has at least the following beneficial effects: This invention uses two templates and a moving template to place the heating element on the same side of the two templates. The moving template is driven by a first driving component to move closer to the two templates. The moving template and the two templates work together to bend the heating element. After the moving template passes through the channel between the two templates, the tubes on opposite sides of the heating element move against the templates. The two templates can rigidly constrain the tubes of the heating element, ensuring that the two tubes remain parallel during linear movement. This avoids the distance between the two ends of the U-shaped heating element being too large or too small, improves the consistency of each bent heating element, and enhances processing stability.

[0008] According to some embodiments of the present invention, the mold has a shaft and a roller coaxially arranged on the shaft, and the radial outer surface of the roller is used to abut against the heating element.

[0009] According to some embodiments of the present invention, the outer radial surface of the roller is provided with an annular groove, and the annular groove has an arcuate surface that matches the outer radial surface of the heating tube.

[0010] According to some embodiments of the present invention, the translation module includes a clamping assembly connected to the first driving assembly. The clamping assembly includes a clamping member and a first power source. The first power source is used to drive the clamping member to move. The clamping member can pass through the channel so that the clamping member and the moving module clamp the heating element.

[0011] According to some embodiments of the present invention, the clamping member has a rod body, and the end of the rod body is provided with an arc-shaped portion, which is used to abut against the heating element.

[0012] According to some embodiments of the present invention, the moving mold is provided with a positioning component, which includes a positioning pin and a cylinder for moving the positioning pin. The positioning pin is located below the clamping member and can abut against the radial outer surface of the heating element.

[0013] According to some embodiments of the present invention, the fixed module includes a second driving component, which is used to move the two templates to change the distance between the two templates.

[0014] According to some embodiments of the present invention, the second driving component includes two linear driving members, each corresponding to one of the two templates, and the linear driving members are used to drive one of the two templates to move; or, the second driving component includes a linkage member and a linear driving member, the linear driving member being used to drive the linkage member, the linkage member being connected to the two templates respectively, and capable of driving the two templates to move closer or further apart.

[0015] According to some embodiments of the present invention, the fixed module includes a sliding component, which is used to guide the template to slide. The sliding component includes a slide bar and a guide sleeve. The slide bar is connected to the moving end of the linear drive member or the linkage member. The slide bar is slidably disposed inside the guide sleeve.

[0016] According to some embodiments of the present invention, the first driving assembly includes a lead screw, a nut, and a motor. The motor drives the lead screw to rotate, the lead screw and the nut are threadedly connected, and the nut is connected to the moving mold.

[0017] Additional aspects and advantages of this invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0018] To more clearly illustrate the technical solutions of the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0019] Figure 1 This is a schematic diagram of a bending mechanism for bending an electric heating tube into a U-shape according to an embodiment of the present invention. Figure 2 for Figure 1 A schematic diagram of another perspective of a bending mechanism for bending heating tubes into a U-shape is shown. Figure 3 for Figure 1 A front view of a bending mechanism for bending heating tubes into a U-shape is shown. Figure 4 for Figure 1 A partial view of a bending mechanism for bending an electric heating tube into a U-shape is shown. Figure 5 for Figure 1 A cross-sectional view of a bending mechanism for bending heating tubes into a U-shape is shown.

[0020] Reference numerals: 100-Modulator, 110-Moving mold, 120-Shaft, 130-Roller, 140-Annular groove, 150-Clamping component, 160-First power source, 170-Rod body, 180-Arc-shaped part, 190-Connecting seat, 200-Linear drive component, 210-Slide bar, 220-Guide sleeve, 230-Lead screw, 240-Nut, 250-Motor, 260-Heating tube, 270-Positioning pin, 280-Cylinder. Detailed Implementation

[0021] The embodiments of this utility model are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this utility model, and should not be construed as limiting this utility model.

[0022] In the description of this utility model, it should be understood that the directional descriptions, such as up, down, front, back, left, right, etc., indicate the directional or positional relationship based on the directional or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0023] In the description of this utility model, "several" means one or more, "multiple" means two or more, "greater than," "less than," and "exceeding" are understood to exclude the stated number, while "above," "below," and "within" are understood to include the stated number. If "first" and "second" are mentioned, it is only for the purpose of distinguishing technical features and should not be construed as indicating or implying relative importance or implicitly indicating the number of indicated technical features or the order of the indicated technical features.

[0024] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation, connection, and linkage" should be interpreted broadly. For example, they can refer to fixed connections, detachable connections, or integral connections; they can refer to mechanical connections or electrical connections; they can refer to direct connections or indirect connections through an intermediate medium; and they can refer to the internal communication between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0025] The following describes, with reference to the accompanying drawings, a bending mechanism for bending an electric heating tube into a U-shape according to an embodiment of the present invention.

[0026] Reference Figure 1 The present invention aims to provide an embodiment of a bending mechanism for bending electric heating tubes to form a U-shape.

[0027] This utility model provides a bending mechanism for bending heating tubes into a U-shape, referring to... Figure 1The system includes a fixed module and a translation module. The fixed module includes two templates 100, which are arranged opposite each other and form a channel between them. A laterally extending heating element can be placed on the same side of the two templates 100. The translation module includes a first driving component and a moving module 110. The first driving component is used to drive the moving module 110 to move. The moving module 110 can abut against the side of the heating element away from the fixed module and can pass through the channel, so that the moving module 110 and the two templates 100 cooperate to bend the heating element to form a U-shaped heating element.

[0028] It is understood that in this embodiment, by setting two templates 100 and a moving template 110, the heating element is placed on the same side of the two templates 100. The moving template 110 is driven to move by the first driving component. The moving template 110 moves closer to the two templates 100. The moving template 110 and the two templates 100 cooperate to bend the heating element. After the moving template 110 passes through the channel between the two templates 100, the tubes on opposite sides of the heating element move against the templates 100. The two templates 100 can rigidly constrain the tubes of the heating element, ensuring that the two tubes remain parallel under linear movement. This avoids the situation where the distance between the two ends of the processed U-shaped heating element is too large or too small, improves the consistency of each bent heating element, and enhances processing stability.

[0029] In some embodiments of this utility model, reference is made to Figure 4 The template 100 has a shaft 120 and a roller 130 coaxially disposed on the shaft 120. The radial outer surface of the roller 130 is used to abut against the heating element.

[0030] It is understandable that during the movement of the heating element along the template 100, the roller 130 can roll on the shaft 120, so that there is rolling friction between the template 100 and the part of the heating element. This reduces scratches on the surface of the heating element and wear on the surface of the template 100, and avoids tube deviation caused by uneven friction when bending the tube.

[0031] In some embodiments of this utility model, reference is made to Figure 4 The outer radial surface of the roller 130 is provided with an annular groove 140, which has an arc-shaped surface that matches the outer radial surface of the heating tube.

[0032] It is understandable that by setting the annular groove 140, the annular groove 140 can restrict the position of the heating tube section during the movement of the heating tube along the template 100, so as to limit the radial movement of the tube section, thereby further ensuring the parallelism of the two opposite tube sections of the heating tube.

[0033] In some embodiments of this utility model, reference is made to Figure 3 and Figure 4The translation module includes a clamping assembly connected to a first drive assembly. The clamping assembly includes a clamping member 150 and a first power source 160. The first power source 160 is used to drive the clamping member 150 to move. The clamping member 150 can pass through a channel so that the clamping member 150 and the moving module 110 clamp the heating element.

[0034] It is understandable that by setting up a clamping component 150 and a first power source 160, the clamping component 150 is moved by the first power source 160, and the clamping component 150 and the moving mold 110 clamp the heating tube, so as to prevent the heating tube from swaying during bending and causing the heating tube to detach from the moving mold 110, thus ensuring that the heating tube can be bent smoothly and improving the forming accuracy.

[0035] In some embodiments of this utility model, reference is made to Figure 4 The clamping member 150 has a rod 170, and the end of the rod 170 is provided with an arc-shaped part 180, which is used to abut against the heating element.

[0036] Understandably, by setting the arc-shaped part 180, the contact area between the clamping part 150 and the heating element is increased, which can adapt to clamping different pipe diameters and has strong versatility. At the same time, it prevents the heating element from being crushed locally and also prevents the heating element from detaching from the clamping part 150 during the movement of the heating element.

[0037] In some embodiments of this utility model, reference is made to Figure 5 The moving module 110 is equipped with a positioning component, which includes a positioning pin 270 and a cylinder 280 that drives the positioning pin 270 to move. The positioning pin 270 is located below the clamping member 150 and can abut against the radial outer surface of the heating element.

[0038] By setting a positioning pin 270 and a cylinder 280, the cylinder 280 drives the positioning pin 270 to move closer to the clamping member 150 and the moving mold 110. The electric heating tube uses the positioning pin 270 as a positioning reference to limit the position of the electric heating tube, so that the clamping member 150 can accurately clamp the radial outer surface of the electric heating tube.

[0039] In some embodiments of this utility model, the movable module 110 is provided with a connecting seat 190, which is detachably connected to the movable end of the first drive component. It is understood that when the movable module 110 suffers severe wear, it can be quickly replaced, and different sizes of movable modules 110 can be adapted, improving equipment flexibility.

[0040] In some embodiments of this utility model, the fixed module includes a second driving component for moving the two templates 100 to change the distance between the two templates 100.

[0041] Understandably, by setting up a second drive component and using it to drive the two templates 100 to move, the distance between the two templates 100 can be changed, making it compatible with the processing requirements of U-shaped bends of different widths. This eliminates the need to replace the templates 100, avoids the problem of managing templates 100 of different specifications, and improves production efficiency.

[0042] In some embodiments of this utility model, the second driving component includes two linear driving members 200, which correspond one-to-one with two templates 100. The linear driving members 200 are used to drive one of the two templates 100 to move.

[0043] It is understandable that by setting two linear drive units 200, each template 100 is equipped with an individual linear drive unit 200, and using the linear drive unit 200 to drive the template 100 to move, the position of the template 100 is changed, so that the two templates 100 can be symmetrical about the moving template 110, without the need to adjust the position of the moving template 110, thus improving the adjustment accuracy.

[0044] In some other embodiments of the present invention, the second driving component includes a linkage member and a linear driving member 200. The linear driving member 200 is used to drive the linkage member. The linkage member is connected to two templates 100 respectively and can drive the two templates 100 to move closer or further apart.

[0045] It is understandable that by setting up a linkage component and a linear drive component 200, and using the linear drive component 200 to provide power to the linkage component, the linkage component can drive the two templates 100 to move closer or further apart, and synchronously adjust the two templates 100, which greatly simplifies the adjustment operation process and reduces the number of power sources.

[0046] In some embodiments of this utility model, the fixed module includes a sliding component, which is used to guide the template 100 to slide. The sliding component includes a slide bar 210 and a guide sleeve 220. The slide bar 210 is connected to the moving end or linkage of the linear drive 200, and the slide bar 210 is slidably disposed inside the guide sleeve 220.

[0047] It is understandable that by setting up the slider 210 and the guide sleeve 220, the slider 210 moves along the inside of the guide sleeve 220 to prevent the template 100 from tilting when it moves, while improving the rigidity of the template 100, avoiding skewing when the template 100 bends the heating tube, and improving the bending accuracy.

[0048] In some embodiments of this utility model, reference is made to Figure 2 The first drive assembly includes a lead screw 230, a nut 240 and a motor 250. The motor 250 drives the lead screw 230 to rotate. The lead screw 230 and the nut 240 are connected by a threaded transmission. The nut 240 is connected to the movable mold 110.

[0049] It is understandable that the use of lead screw 230 and nut 240 to drive the moving mold 110 ensures smooth movement of the moving mold 110, avoids large impacts on the surface of the heating tube, and prevents deformation of the heating tube surface.

[0050] In the description of this specification, references to terms such as "an embodiment," "some embodiments," "illustrative embodiments," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0051] The embodiments of the present utility model have been described in detail above with reference to the accompanying drawings. However, the present utility model is not limited to the above embodiments. Within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the spirit of the present utility model.

Claims

1. A bending mechanism for bending electric heating tubes into a U-shape, characterized in that, include: The fixed module includes two templates (100) arranged opposite to each other, forming a channel between the two templates (100), and a laterally extending electric heating tube can be placed on the same side of the two templates (100). The translation module includes a first driving component and a moving module (110). The first driving component is used to drive the moving module (110) to move. The moving module (110) can abut against the side of the heating tube away from the fixed module and can pass through the channel, so that the moving module (110) and the two templates (100) cooperate to bend the heating tube to form a U-shaped heating tube.

2. The bending mechanism for bending electric heating tubes into a U-shape according to claim 1, characterized in that, The template (100) has a shaft (120) and a roller (130) coaxially (120) disposed on the shaft (120), the radial outer surface of the roller (130) being used to abut against the heating element.

3. A bending mechanism for bending electric heating tubes into a U-shape according to claim 2, characterized in that, The outer radial surface of the roller (130) is provided with an annular groove (140), the annular groove (140) having an arcuate surface that matches the outer radial surface of the heating tube.

4. A bending mechanism for bending electric heating tubes into a U-shape according to claim 1, characterized in that, The translation module includes a clamping assembly connected to the first drive assembly. The clamping assembly includes a clamping member (150) and a first power source (160). The first power source (160) is used to drive the clamping member (150) to move. The clamping member (150) can pass through the channel so that the clamping member (150) and the moving module (110) clamp the heating element.

5. A bending mechanism for bending electric heating tubes into a U-shape according to claim 4, characterized in that, The clamping member (150) has a rod (170) with an arc-shaped portion (180) at the end of the rod (170) for contacting the heating element.

6. A bending mechanism for bending electric heating tubes into a U-shape according to claim 4, characterized in that, The moving module (110) is provided with a positioning component, which includes a positioning pin (270) and a cylinder (280) that drives the positioning pin (270) to move. The positioning pin (270) is located below the clamping member (150) and can abut against the radial outer surface of the heating tube.

7. A bending mechanism for bending electric heating tubes into a U-shape according to claim 1, characterized in that, The fixed module includes a second drive component for moving the two templates (100) to change the distance between the two templates (100).

8. A bending mechanism for bending electric heating tubes into a U-shape according to claim 7, characterized in that, The second drive assembly includes two linear drive members (200), each of which corresponds to one of the two templates (100). The linear drive members (200) are used to drive one of the two templates (100) to move. Alternatively, the second drive component includes a linkage and a linear drive (200), the linear drive (200) being used to drive the linkage, the linkage being connected to the two templates (100) respectively, and being able to drive the two templates (100) to move closer or further apart.

9. A bending mechanism for bending an electric heating tube into a U-shape according to claim 8, characterized in that, The fixed module includes a sliding component for guiding the template (100) to slide. The sliding component includes a slide bar (210) and a guide sleeve (220). The slide bar (210) is connected to the moving end of the linear drive (200) or the linkage component. The slide bar (210) is slidably disposed inside the guide sleeve (220).

10. A bending mechanism for bending electric heating tubes into a U-shape according to claim 1, characterized in that, The first drive assembly includes a lead screw (230), a nut (240) and a motor (250). The motor (250) drives the lead screw (230) to rotate. The lead screw (230) and the nut (240) are connected by a thread. The nut (240) is connected to the moving mold (110).

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