A feeding device and a pipe bending machine

Abstract

This utility model discloses a feeding device and a tube bending machine. The feeding device includes: a storage rack for storing multiple laterally extending electric heating tubes, the storage rack having an inclined surface and a discharge port, the inclined surface guiding the electric heating tubes into the discharge port; a tube handling mechanism including a first drive component and a feeding wheel, the first drive component driving the feeding wheel to rotate, the feeding wheel being disposed inside the storage rack and cooperating with the inclined surface to move the electric heating tubes inside the storage rack so that the electric heating tubes pass through the discharge port one by one; and a tube transferring mechanism including a second drive component and a clamping component, the second drive component driving the clamping component to move closer to or away from the discharge port, the clamping component being able to clamp the electric heating tubes at the discharge port, so that the electric heating tubes are transferred to the bending station. This utility model can eliminate the manual picking and placing of electric heating tubes, realizing automated continuous feeding.

Description

Technical Field

[0001] This utility model relates to the technical field of pipe bending equipment, and in particular to a feeding device and a pipe bending machine. Background Technology

[0002] In the field of electric heating tube manufacturing, strip-shaped metal electric heating tubes can be bent using a tube bending machine to form U-shaped, spiral, and other structures.

[0003] In current mainstream production processes, the material loading process before bending generally relies on manual operation. Specifically, operators need to manually pick up the straight heating tubes from the storage area and accurately place them in the clamping mold and bending station of the tube bending machine.

[0004] Therefore, it is necessary to design a feeding device to replace manual feeding in order to improve the feeding efficiency of electric heating tubes. 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 feeding device that can eliminate the manual picking and placing of heating tubes, thereby achieving automated continuous feeding.

[0006] This utility model also proposes a pipe bending machine having the above-mentioned feeding device.

[0007] A feeding device according to a first aspect of the present invention includes: a storage rack for storing a plurality of laterally extending electric heating tubes, the storage rack having an inclined surface and a discharge port, the inclined surface being used to guide the electric heating tubes into the discharge port; a tube handling mechanism including a first driving component and a feeding wheel, the first driving component driving the feeding wheel to rotate, the feeding wheel being disposed inside the storage rack and capable of cooperating with the inclined surface to move the electric heating tubes inside the storage rack so that the electric heating tubes pass through the discharge port one by one; and a tube transferring mechanism including a second driving component and a clamping component, the second driving component driving the clamping component to move closer to or away from the discharge port, the clamping component being capable of clamping the electric heating tubes at the discharge port so that the electric heating tubes are transferred to a bending station.

[0008] A feeding device according to an embodiment of the present utility model has at least the following beneficial effects:

[0009] 1. This utility model, by setting up a storage rack, has an inclined surface inside the storage rack that can store multiple horizontally extending electric heating tubes. The inclined surface can guide the electric heating tubes to slide down, so that the electric heating tubes inside the storage rack can be discharged from the discharge port, which can continuously provide electric heating tubes and facilitate subsequent electric heating tube feeding operations.

[0010] 2. This utility model, by setting a first driving component and a feeding wheel, uses the first driving component to drive the feeding wheel to rotate. The rotation of the feeding wheel actuates the heating tubes as they slide down the inclined surface, so that the heating tubes can slide down in an orderly manner and enter the discharge port one by one. Thus, the clamping component can clamp the heating tubes from the discharge port in an orderly manner, reducing the situation where the clamping component cannot clamp the heating tubes.

[0011] 3. This utility model, by setting a second driving component and a clamping component, uses the second driving component to drive the clamping component to move. The clamping component can move close to the discharge port and clamp the electric heating tube discharged from the discharge port. Then, the clamping component can move to the bending station to provide the electric heating tube. Thus, the manual picking and placing of the electric heating tube is eliminated, the electric heating tube is continuously fed, the automation level of the equipment is improved, the bending cycle is greatly shortened, and the operation safety is improved.

[0012] According to a first aspect of the present invention, a feeding device has a plurality of protrusions on the radial outer surface of the feeding wheel, the plurality of protrusions being distributed circumferentially along the feeding wheel, the protrusions being able to abut against the heating tube to push the heating tube upward.

[0013] According to a first aspect of the present invention, a feeding device has a plurality of upright plates inside the storage rack, the plurality of upright plates being arranged side by side, the top of the upright plates being able to support an electric heating tube, and the top of the upright plates forming an inclined surface.

[0014] According to a first aspect embodiment of the present invention, a feeding device is provided with a guide plate on one side of the tube handling mechanism near the bottom end of the inclined surface, and a vertically extending discharge channel is formed between the side wall of the guide plate and the side wall of the vertical plate, the discharge channel allowing an electric heating tube to pass through, and the bottom end of the discharge channel being the discharge port.

[0015] According to a first aspect embodiment of the present invention, a feeding device includes a clamping component comprising a positioning member, a clamping member, and a first power source. The positioning member is located below the discharge port and has a notch for accommodating the radial outer surface of the heating element. The clamping member is hinged to the positioning member. The first power source is used to drive the clamping member to rotate. The clamping member can cooperate with the positioning member to clamp or release the heating element.

[0016] According to a first aspect of the present invention, a feeding device is provided with a limiting component on the side of the positioning member near the clamping member. The limiting component includes a limiting member and a second power source. The limiting member is rotatably disposed. The second power source can drive the limiting member to rotate, so that the limiting member can move closer to or away from the positioning member. The limiting member moves closer to the positioning member so that the limiting member and the positioning member cooperate to limit the radial position of the heating tube.

[0017] According to a first aspect embodiment of the present invention, a feeding device is provided, wherein the second driving component includes a first gear, a first rack and a third power source, the third power source being used to drive the first gear to rotate, the first gear meshing with the first rack, the positioning member being provided with a movable seat, the movable seat being connected to the first rack to drive the clamping component to approach or move away from the bending station.

[0018] According to a first aspect of the present invention, a feeding device includes a third power source comprising a second gear, a second rack, and a linear motion member. The second gear is coaxially connected to the first gear, and the second rack meshes with the second gear for transmission. The linear motion member is used to drive the second rack to lift and lower.

[0019] According to a first aspect of the present invention, a feeding device further includes a positioning mechanism, which is used to limit the position of the electric heating tube in the axial direction at the discharge port. The positioning mechanism includes a first pushing member, a second pushing member, and a third driving component. The first pushing member and the second pushing member are distributed along the length of the electric heating tube. The third driving component is used to drive the first pushing member and the second pushing member to move relatively closer or further away. The first pushing member and the second pushing member move relative to each other so that the first pushing member and the second pushing member clamp the end of the positioning electric heating tube.

[0020] A pipe bending machine according to a second aspect of the present invention includes a feeding device as described in any one of the above claims.

[0021] This utility model also provides a pipe bending machine, which has the above-mentioned beneficial effects.

[0022] 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

[0023] 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.

[0024] Figure 1 This is a schematic diagram of the structure of a feeding device according to an embodiment of the present utility model;

[0025] Figure 2 for Figure 1A schematic diagram of the structure of a feeding device from another perspective is shown;

[0026] Figure 3 for Figure 1 A schematic diagram of the structure of a feeding device from another perspective is shown;

[0027] Figure 4 for Figure 1 A cross-sectional view of a feeding device is shown.

[0028] Reference numerals: 100-Storage rack, 110-Heating tube, 120-First drive assembly, 130-Pushing wheel, 150-Clamping assembly, 160-Protrusion, 170-Upright plate, 180-Guide plate, 190-Discharge channel, 200-Positioning component, 210-Clamping component, 220-First power source, 230-Notch, 240-Limiting component, 250-Second power source, 260-First gear, 270-First rack, 280-Second gear, 290-Second rack, 300-Linear moving component, 310-First pushing component, 320-Second pushing component, 330-Third drive assembly. Detailed Implementation

[0029] 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.

[0030] 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.

[0031] 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.

[0032] 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.

[0033] The following description, in conjunction with the accompanying drawings, describes a feeding device and a pipe bending machine according to an embodiment of the present invention.

[0034] Reference Figure 1 The present invention aims to provide an embodiment of a feeding device and a pipe bending machine.

[0035] A feeding device according to an embodiment of this utility model, referring to... Figure 1 and Figure 2 It includes a storage rack 100 for storing multiple horizontally extending electric heating tubes 110. The storage rack 100 has an inclined surface and a discharge port. The inclined surface is used to guide the electric heating tubes 110 into the discharge port.

[0036] It is understood that by setting up a storage rack 100, the inclined surface inside the storage rack 100 can store multiple horizontally extending electric heating tubes 110. The inclined surface can guide the electric heating tubes 110 to slide down, so that the electric heating tubes 110 inside the storage rack 100 can be discharged from the discharge port, which can continuously provide electric heating tubes 110 and facilitate subsequent electric heating tube 110 feeding operations.

[0037] In some embodiments of this utility model, the storage rack 100 has a plurality of upright plates 170 inside, the plurality of upright plates 170 are arranged side by side, the top of the upright plates 170 can support the heating tube 110, and the top of the upright plates 170 forms an inclined surface.

[0038] Understandably, by setting up multiple upright plates 170, the tops of these plates support the heating elements 110, enabling batch storage of the heating elements 110. Furthermore, using the tops of the upright plates 170 as inclined surfaces reduces the contact area between the heating elements 110 and the plates 170, decreasing friction and facilitating smooth downward movement of the heating elements 110, thus reducing the likelihood of them stalling or getting stuck during descent.

[0039] A feeding device according to an embodiment of this utility model, referring to... Figure 4It also includes a management mechanism, which includes a first drive component 120 and a feeding wheel 130. The first drive component 120 drives the feeding wheel 130 to rotate. The feeding wheel 130 is located inside the storage rack 100 and can cooperate with the inclined surface to move the electric heating tubes 110 inside the storage rack 100 so that the electric heating tubes 110 pass through the discharge port one by one.

[0040] It is understood that by setting a first driving component 120 and a feeding wheel 130, the first driving component 120 drives the feeding wheel 130 to rotate. The rotation of the feeding wheel 130 actuates the heating tubes 110 as they slide down the inclined surface, so that the heating tubes 110 can slide down in an orderly manner and enter the discharge port one by one. This allows the clamping component 150 to clamp the heating tubes 110 from the discharge port in an orderly manner, reducing the situation where the clamping component 150 cannot clamp the heating tubes 110.

[0041] In some embodiments of this utility model, the radial outer surface of the feeding wheel 130 has a plurality of protrusions 160, which are distributed circumferentially along the feeding wheel 130. The protrusions 160 can abut against the heating tube 110 to push the heating tube 110 upward.

[0042] Understandably, by setting multiple protrusions 160, the protrusions 160 sequentially move the heating tubes 110, ensuring that each heating tube passes through the discharge port one by one, thus preventing multiple heating tubes from blocking the discharge port.

[0043] It should be noted that the protrusion 160 of the feed wheel 130 can be similar to the teeth of the disc milling cutter, making it easier for the feed wheel 130 to move the heating element 110.

[0044] In some embodiments of this utility model, a guide plate 180 is provided on the side of the tube handling mechanism near the bottom of the inclined surface. A vertically extending discharge channel 190 is formed between the side wall of the guide plate 180 and the side wall of the upright plate 170. The discharge channel 190 allows an electric heating tube 110 to pass through, and the bottom end of the discharge channel 190 is a discharge port.

[0045] It is understandable that the width of the discharge channel 190 is used to limit the passage of a single heating element 110, preventing multiple heating elements 110 from falling at the same time. Furthermore, multiple heating elements 110 are arranged sequentially within the discharge channel 190, enabling the clamping assembly 150 to quickly clamp the heating elements 110.

[0046] In addition, the guide plate 180 and the upright plate 170 work together to constrain the posture of the heating tube 110, preventing the heating tube 110 at the discharge port from tilting, ensuring that the tube axis of the heating tube 110 is aligned during discharge, making it easier for the clamping mechanism to grasp the tube, and reducing the occurrence of situations where the clamping assembly 150 cannot accurately clamp the heating tube 110.

[0047] In some embodiments of this utility model, reference is made to Figure 2 and Figure 3 It also includes a positioning mechanism, which is used to limit the position of the electric heating tube 110 in the axial direction at the discharge port. The positioning mechanism includes a first pusher 310, a second pusher 320 and a third drive assembly 330. The first pusher 310 and the second pusher 320 are distributed along the length of the electric heating tube 110. The third drive assembly 330 is used to drive the first pusher 310 and the second pusher 320 to move closer or further away from each other. The first pusher 310 and the second pusher 320 move relative to each other so that the first pusher 310 and the second pusher 320 clamp the end of the positioning electric heating tube 110.

[0048] It is understandable that by setting the first pusher 310, the second pusher 320 and the third drive assembly 330, before the clamping assembly 150 clamps the heating tube 110, the third drive assembly 330 drives the first pusher 310 and the second pusher 320 to move relative to each other. The first pusher 310 and the second pusher 320 respectively abut and position with the end of the heating tube 110. After the clamping assembly 150 moves the heating tube 110 to the bending station, there is no need to position the heating tube 110, ensuring that the bending position of each heating tube 110 is consistent and improving the consistency of the bending shape of each heating tube 110.

[0049] It should be noted that the third drive assembly 330 may include a gear, two racks and a cylinder. The cylinder drives one rack to move, and the gear and two racks mesh to transmit power. The two racks are used to connect the first pusher 310 and the second pusher 320 respectively. The second pusher 320 is connected to a rack through a connecting frame. The connecting frame passes through the inside of the storage rack, thereby allowing the first pusher 310 and the second pusher 320 to move relative to each other.

[0050] A feeding device according to an embodiment of this utility model, referring to... Figure 3 and Figure 4 It also includes a tube transfer mechanism, which includes a second drive assembly and a clamping assembly 150. The second drive assembly drives the clamping assembly 150 to move closer to or away from the discharge port. The clamping assembly 150 can clamp the heating tube 110 at the discharge port so that the heating tube 110 is transferred to the bending station.

[0051] It is understood that by setting a second driving component and a clamping component 150, the present invention uses the second driving component to drive the clamping component 150 to move. The clamping component 150 can move closer to the discharge port and clamp the electric heating tube 110 discharged from the discharge port. Then, the clamping component 150 can move to the bending station to provide the electric heating tube 110. Thus, the manual picking and placing of the electric heating tube is eliminated, the electric heating tube 110 is continuously fed, the automation level of the equipment is improved, the bending cycle is significantly shortened, and the safety of operation is improved.

[0052] In some embodiments of this utility model, reference is made to Figure 3 The clamping assembly 150 includes a positioning member 200, a clamping member 210, and a first power source 220. The positioning member 200 is located below the discharge port and has a notch 230 for accommodating the radial outer surface of the heating tube 110. The clamping member 210 is hinged to the positioning member 200. The first power source 220 is used to drive the clamping member 210 to rotate. The clamping member 210 can cooperate with the positioning member 200 to clamp or release the heating tube 110.

[0053] It is understandable that by setting up the positioning member 200, the clamping member 210 and the first power source 220, the first power source 220 can drive the clamping member 210 to rotate. The clamping member 210 rotates away from the positioning member 200 so that the positioning member 200 can receive the electric heating tube 110 from the discharge port through the notch 230. The clamping member 210 rotates closer to the positioning member 200 so that the positioning member 200 and the clamping member 210 clamp the electric heating tube 110, making it difficult for the electric heating tube 110 to detach during the movement of the clamping assembly 150.

[0054] It should be noted that the first power source 220 can be a cylinder, which is rotatable so that it can drive the clamping member 210 to rotate.

[0055] In some embodiments of this utility model, a limiting component is provided on the side of the positioning member 200 near the clamping member 210. The limiting component includes a limiting member 240 and a second power source 250. The limiting member 240 is rotatably disposed, and the second power source 250 can drive the limiting member 240 to rotate, so that the limiting member 240 can move closer to or away from the positioning member 200. When the limiting member 240 moves closer to the positioning member 200, the limiting member 240 and the positioning member 200 cooperate to limit the radial position of the heating tube 110.

[0056] Understandably, when the notch 230 of the positioning member 200 receives the heating element 110, to prevent the position of the heating element 110 from shifting and causing the clamping assembly 150 to be unable to clamp the heating element 110, a limiting member 240 and a second power source 250 are set. The second power source 250 drives the limiting member 240 to rotate. The limiting member 240 rotates closer to the positioning member 200, so that the limiting member 240 and the positioning member 200 cooperate to restrict the position of the heating element 110, preventing the heating element 110 from falling out of the notch 230 on the positioning member 200. The limiting member 240 rotates away from the positioning member 200, making it easier for the clamping assembly 150 to move the heating element 110 to the bending station, and avoiding interference between the limiting member 240 and the heating element.

[0057] It should be noted that the second power source 250 can be a cylinder, which is rotatable so that it can drive the limiting member 240 to rotate.

[0058] In some embodiments of this utility model, reference is made to Figure 1 and Figure 4 The second drive assembly includes a first gear 260, a first rack 270, and a third power source. The third power source is used to drive the first gear 260 to rotate. The first gear 260 meshes with the first rack 270 for transmission. The positioning member 200 is provided with a movable seat, which is connected to the first rack 270 to drive the clamping assembly 150 to approach or move away from the bending station.

[0059] Understandably, by setting up a first gear 260, a first rack 270, and a third power source, the third power source drives the first gear 260 to rotate, and the first gear 260 drives the first rack 270 to move linearly. By utilizing the high rigidity and precise transmission characteristics of gear and rack transmission, the clamping assembly 150 can be accurately moved to the discharge port or bending station, ensuring that the heating tube 110 can be bent smoothly.

[0060] In some embodiments of this utility model, the third power source includes a second gear 280, a second rack 290, and a linear motion member 300. The second gear 280 is coaxially connected to the first gear 260, and the second rack 290 and the second gear 280 mesh and drive each other. The linear motion member 300 is used to drive the second rack 290 to rise and fall.

[0061] It is understandable that by using the second gear 280 and the second rack 290 to convert the lifting motion of the linear moving part 300 into rotational motion, the third power source can be distributed along the vertical direction, reducing the equipment footprint.

[0062] This embodiment also proposes a pipe bending machine, including the aforementioned feeding device. It is understood that the storage rack 100, the pipe handling mechanism, and the pipe transferring mechanism can eliminate the need for manual picking and placing of heating tubes, achieving automated continuous feeding.

[0063] 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.

[0064] 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 feeding device, characterized in that, include: A storage rack (100) is used to store a plurality of horizontally extending electric heating tubes (110). The storage rack (100) has an inclined surface and a discharge port. The inclined surface is used to guide the electric heating tubes (110) to fall into the discharge port. The feeding mechanism includes a first drive assembly (120) and a feeding wheel (130). The first drive assembly (120) drives the feeding wheel (130) to rotate. The feeding wheel (130) is disposed inside the storage rack (100) and can cooperate with the inclined surface to push the electric heating tubes (110) inside the storage rack (100) so that the electric heating tubes (110) pass through the discharge port one by one. The tube transfer mechanism includes a second drive assembly (140) and a clamping assembly (150). The second drive assembly drives the clamping assembly (150) to move closer to or away from the discharge port. The clamping assembly (150) is capable of clamping the heating tube (110) at the discharge port so that the heating tube (110) is transferred to the bending station.

2. The feeding device according to claim 1, characterized in that, The radial outer surface of the feeding wheel (130) has a plurality of protrusions (160), which are distributed circumferentially along the feeding wheel (130). The protrusions (160) can abut against the heating tube (110) to push the heating tube (110) upward.

3. The feeding device according to claim 1, characterized in that, The storage rack (100) has multiple upright plates (170) inside, which are arranged side by side. The top of the upright plates (170) can support the heating tube (110), and the top of the upright plates (170) forms an inclined surface.

4. The feeding device according to claim 3, characterized in that, A guide plate (180) is provided on one side of the tube-handling mechanism near the bottom of the inclined surface. A vertically extending discharge channel (190) is formed between the side wall of the guide plate (180) and the side wall of the upright plate (170). The discharge channel (190) allows a heating tube (110) to pass through. The bottom end of the discharge channel (190) is the discharge port.

5. A feeding device according to claim 1, characterized in that, The clamping assembly (150) includes a positioning member (200), a clamping member (210), and a first power source (220). The positioning member (200) is located below the discharge port. The positioning member (200) is provided with a notch (230) for accommodating the radial outer surface of the heating tube (110). The clamping member (210) is hinged to the positioning member (200). The first power source (220) is used to drive the clamping member (210) to rotate. The clamping member (210) can cooperate with the positioning member (200) to clamp or release the heating tube (110).

6. A feeding device according to claim 5, characterized in that, The positioning member (200) is provided with a limiting component on the side near the clamping member (210). The limiting component includes a limiting member (240) and a second power source (250). The limiting member (240) is rotatably disposed. The second power source (250) can drive the limiting member (240) to rotate, so that the limiting member (240) can move closer to or away from the positioning member (200). The limiting member (240) moves closer to the positioning member (200) so that the limiting member (240) and the positioning member (200) cooperate to limit the radial position of the heating tube (110).

7. A feeding device according to claim 6, characterized in that, The second drive assembly includes a first gear (260), a first rack (270), and a third power source. The third power source is used to drive the first gear (260) to rotate. The first gear (260) meshes with the first rack (270) for transmission. The positioning member (200) is provided with a movable seat. The movable seat is connected to the first rack (270) to drive the clamping assembly (150) to move closer to or away from the bending station.

8. A feeding device according to claim 7, characterized in that, The third power source includes a second gear (280), a second rack (290), and a linear motion component (300). The second gear (280) is coaxially connected to the first gear (260). The second rack (290) and the second gear (280) mesh and drive each other. The linear motion component (300) is used to drive the second rack (290) to rise and fall.

9. A feeding device according to claim 1, characterized in that, It also includes a positioning mechanism for limiting the position of the electric heating tube (110) in the axial direction at the discharge port. The positioning mechanism includes a first pusher (310), a second pusher (320), and a third drive assembly (330). The first pusher (310) and the second pusher (320) are distributed along the length of the electric heating tube (110). The third drive assembly (330) is used to drive the first pusher (310) and the second pusher (320) to move closer or further away from each other. The first pusher (310) and the second pusher (320) move relative to each other so that the first pusher (310) and the second pusher (320) clamp the end of the positioning electric heating tube (110).

10. A pipe bending machine, characterized in that, The feeding device includes any one of claims 1 to 9.

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