A bending machine

Abstract

This invention discloses a bending machine, including a conveyor belt, a sheet metal rack at one end of the conveyor belt, a plurality of bending seats on the conveyor belt, and a circular track above the conveyor belt and the sheet metal rack. The track is located on a plane parallel to the conveyor belt, and a plurality of bending structures and a plurality of conveying mechanisms are sequentially arranged on the track. At least one conveying mechanism is provided between two adjacent bending structures. The machine also includes a first control structure for controlling the movement of the bending structures on the track and a second control structure for controlling the movement of the conveying mechanisms on the track. The purpose of this invention is to solve the technical problems existing in the prior art and provide a bending machine that can effectively shorten the interval time for bending sheet metal, realize continuous bending processing of sheet metal, and improve the bending efficiency of sheet metal by more than 100%.

Description

Technical Field

[0001] This invention relates to the field of bending technology, and more specifically to a bending machine. Background Technology

[0002] In the sheet metal production process, bending machines are frequently used to bend the sheets. In existing sheet metal bending processes, the operator typically uses clamps or similar devices to fix the sheet metal onto the bending machine's worktable, and then manipulates the machine to perform the bending operation.

[0003] Existing bending machines require waiting for the previous sheet to finish bending and be removed from the machine before bending the next sheet, resulting in long waiting times and low bending efficiency. Summary of the Invention

[0004] 1. The technical problem that the invention aims to solve

[0005] The purpose of this invention is to solve the technical problems existing in the prior art and to provide a bending machine that can effectively shorten the interval time of sheet metal bending, realize continuous bending processing of sheet metal, and improve the bending efficiency of sheet metal by more than 100%.

[0006] 2. Technical Solution

[0007] To solve the above problems, the technical solution provided by the present invention is as follows:

[0008] A bending machine includes a conveyor belt, one end of which is provided with a sheet metal rack. A plurality of bending seats are provided on the conveyor belt. An annular track is provided above the conveyor belt and the sheet metal rack. The track is located on a plane parallel to the conveyor belt. A plurality of bending structures and a plurality of conveying mechanisms are sequentially arranged on the track. At least one conveying mechanism is provided between two adjacent bending structures. The machine also includes a first control structure for controlling the movement of the bending structures on the track and a second control structure for controlling the movement of the conveying mechanisms on the track.

[0009] Optionally, the plate rack includes a base and a plurality of side bars vertically connected to the base, the plurality of side bars forming a plate receiving groove, and the spacing between two opposing side bars is adjustable.

[0010] Optionally, the plate receiving groove is provided with a movable base plate, which is connected to the base via an elastic telescopic rod.

[0011] Optionally, the bending structure includes a first movable seat movably connected to the track, and the lower end of the first movable seat is connected to a bending pressure head via a first cylinder.

[0012] Optionally, the first control structure includes a first electric pulley rotatably connected to the first movable seat and engaging with the track.

[0013] Optionally, the conveying mechanism includes a second movable seat movably connected to the track, the lower end of the second movable seat being connected to a suction cup plate via a second cylinder, and a plurality of suction cups being mounted on the lower end surface of the suction cup plate.

[0014] Optionally, the second control structure includes a second electric pulley rotatably connected to the second movable seat and engaging with the track.

[0015] Optionally, at least one pad is provided between two adjacent bending seats, and the pad is connected to the conveyor belt.

[0016] Optionally, the inner circumferential side of the conveyor belt is provided with an inner support block, which abuts against the upper inner circumferential side of the conveyor belt.

[0017] 3. Beneficial effects

[0018] Compared with the prior art, the technical solution provided by this invention has the following advantages:

[0019] This bending machine can effectively shorten the interval time for bending sheet metal, enabling continuous bending processing and increasing bending efficiency by over 100%. Furthermore, the bent sheet metal can be delivered from the other end of the conveyor belt, eliminating the need for the user to retrieve the sheet metal from below the bending mechanism, thus greatly improving operational safety. The track is designed as a ring structure with its ends connected. This design primarily addresses the technical issue of the bending and transporting mechanisms needing to return to their initial positions after use for the next cycle. If the track were a straight track with disjointed ends, continuous bending processing would be impossible when multiple bending and transporting mechanisms are in operation simultaneously, as the subsequent bending and transporting mechanisms would obstruct the return of the preceding bending and transporting mechanisms to their initial positions. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the structure of a bending machine according to an embodiment of the present invention;

[0021] Figure 2 This is a schematic diagram of the sheet metal frame in a bending machine according to an embodiment of the present invention;

[0022] Figure 3 This is a schematic diagram of a bending structure in a bending machine according to an embodiment of the present invention;

[0023] Figure 4 This is a schematic diagram of the conveying mechanism in a bending machine according to an embodiment of the present invention;

[0024] 1. Conveyor belt; 2. Sheet rack; 21. Base; 22. Side guard bar; 23. Movable base plate; 24. Elastic telescopic rod; 3. Bending seat; 4. Track; 5. Bending structure; 51. First movable seat; 52. First cylinder; 53. Bending pressure head; 54. First electric pulley; 6. Handling mechanism; 61. Second movable seat; 62. Second cylinder; 63. Suction cup plate; 64. Suction cup; 65. Second electric pulley; 7. Pad block; 8. Inner support block. Detailed Implementation

[0025] To make the objectives, technical solutions, and advantages of this invention clearer, the invention will be further described in detail below with reference to the accompanying drawings and specific embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and do not limit the scope of protection of this invention.

[0026] It should be noted that when a component is referred to as "fixed to," "set on," "fixed to," or "mounted on" another component, it can be directly on the other component or there may be an intermediate component. When a component is considered to be "connected" to another component, it can be directly connected to the other component or there may be an intermediate component. Furthermore, when a component is considered to be "fixedly connected" to another component, the connection can be detachable or non-detachable, such as through socketing, snap-fitting, integral molding, welding, etc., which are achievable in the prior art and will not be elaborated upon here. When a component is perpendicular or approximately perpendicular to another component, it means that the ideal state is perpendicularity, but due to manufacturing and assembly effects, there may be a certain degree of perpendicularity error. The terms "vertical," "horizontal," "left," "right," and similar expressions used in this document are for illustrative purposes only and do not represent the only possible implementation.

[0027] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. The terminology used herein in the description of the invention is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.

[0028] In this invention, the terms "first" and "second" do not represent a specific quantity or order, but are merely used to distinguish names.

[0029] Combined with appendix Figure 1-4This embodiment of a bending machine includes a conveyor belt 1, which is arranged in a ring and has drive rollers symmetrically arranged at both ends. One end of the conveyor belt 1 is provided with a plate rack 2, which can simultaneously accommodate multiple plates to be bent. The conveyor belt 1 is provided with a plurality of bending seats 3, which are connected to the conveyor belt 1 and move synchronously with the conveyor belt 1. The bending seats 3 are provided with bending grooves. A ring track 4 is provided above the conveyor belt 1 and the plate rack 2, with the ends of the track 4 connected together. The track 4 is located on a plane parallel to the conveyor belt 1. A plurality of bending structures 5 and a plurality of conveying mechanisms 6 are arranged sequentially on the track 2. The bending structures 5 cooperate with the bending seats 3 to bend the plates. The conveying mechanisms 6 are used to transport the plates on the plate rack 2 to the conveyor belt 1. At least one conveying mechanism 6 is provided between two adjacent bending structures 5. The machine also includes a first control structure for controlling the movement of the bending structures 5 on the track 4 and a second control structure for controlling the movement of the conveying mechanisms 6 on the track 4.

[0030] The working principle of this bending machine is as follows: The conveying mechanism 6 transports the sheet metal on the sheet metal rack 2 to the conveyor belt 1, and the second control structure controls the bending position of the sheet metal to be located on one of the bending seats 3. Then, the first control structure controls one of the bending mechanisms 5 to move directly above the bending seat 3 and complete the bending action. During bending, the moving speed of the bending mechanism 5 on the track 4 is the same as the transmission speed of the conveyor belt 1. The bending mechanism 5, the bending seat 3 and the sheet metal remain relatively stationary. When the sheet metal is placed on the conveyor belt 1 for bending, the next sheet metal can be placed on the conveyor belt 1 and begin bending under the control of another conveying mechanism 6.

[0031] This bending machine can effectively shorten the interval time of sheet metal bending, realize continuous bending processing of sheet metal, and improve the bending efficiency of sheet metal by more than 100%. Moreover, the bent sheet metal can be sent out from the other end of the conveyor belt 1, eliminating the need for the user to take the sheet metal from below the bending mechanism 5, greatly improving the safety during operation. The track 2 is designed as a ring structure with the ends connected, mainly to solve the technical problem that the bending structure 5 and the conveying mechanism 6 need to return to the initial position after use for the next use. If it is a straight track with the ends not connected, continuous bending processing cannot be achieved when there are multiple bending structures 5 and conveying mechanisms 6 at the same time, because after the bending structure 5 and the conveying mechanism at the front needs to return to the initial position, the bending structure 5 and the conveying mechanism at the rear will block it.

[0032] As an optional embodiment of the present invention, two or more conveying mechanisms 6 are provided between two adjacent bending structures 5 to grip at least both ends of the sheet material during conveying, thereby realizing the conveying of larger sheet materials and preventing the larger sheet materials from bending and deforming during the conveying process, which would affect the bending effect.

[0033] As an optional embodiment of the present invention, the plate rack 2 includes a base 21 and a plurality of side stops 22 vertically connected to the base 21. The lower ends of the side stops 22 are slidably connected to the base 21. The plurality of side stops 22 surround to form a plate receiving groove. The upper end of the plate receiving groove is open. The spacing between two opposing side stops 22 is adjustable. According to different sizes of plates, the plurality of side stops 22 form a plate receiving groove that matches the size by adjusting the spacing, ensuring that the conveying mechanism 6 always grasps the same position of the plate when grasping the same size plate, thereby facilitating the conveying mechanism 6 to align the bending position of the plate with the bending seat 3.

[0034] As an optional embodiment of the present invention, the plate receiving groove is provided with a movable base plate 23. The movable base plate 23 is connected to the base 21 by an elastic telescopic rod 24. The elastic telescopic rod 24 includes two metal rods that are inserted into each other and have a built-in spring. When there are few plates on the movable base plate 23, the elastic telescopic rod 24 pushes the movable base plate 23 upward so that the conveying mechanism 6 can grab the plates located on the movable base plate 23.

[0035] As an optional embodiment of the present invention, the bending seat 3 is provided with an infrared sensor. The infrared sensor is located at the deepest part of the bending groove on the bending seat 3 and emits infrared light outward. When the plate passes through the bending seat 3, it will be detected by the infrared sensor on the bending seat 3. At this time, it indicates that the front end of the plate is directly above the bending seat 3. Then, according to the bending position of the plate, the plate can be moved forward a preset distance relative to the bending seat 3 to control the bending position of the plate to be aligned with the bending groove on the bending seat 3.

[0036] As an optional embodiment of the present invention, the bending structure 5 includes a first movable seat 51 movably connected to the track 4. The lower end of the first movable seat 51 is connected to a bending head 53 via a first cylinder 52. The lower end of the bending head 53 has a bending portion adapted to the bending groove. During bending, the first cylinder 52 controls the bending head 53 to press down to press the bending position of the plate into the bending groove and press it into a fixed shape.

[0037] As an optional embodiment of the present invention, the first control structure includes a first electric pulley 54 rotatably connected to the first movable seat 51 and engaging with the track 4. When the first electric pulley 54 rotates, it drives the first movable seat 51 to move on the track 4 through the frictional reaction force between it and the track 4.

[0038] As an optional embodiment of the present invention, the conveying mechanism 6 includes a second movable seat 61 movably connected to the track 4. The lower end of the second movable seat 61 is connected to a suction cup plate 63 via a second cylinder 62. A plurality of suction cups 64 are installed on the lower end surface of the suction cup plate 63. The second cylinder 62 controls the suction cup plate 63 to descend and approach the board material, and then the board material is gripped by the plurality of suction cups 64. The gripping stability is good, which can ensure the moving accuracy of the board material during conveying.

[0039] As an optional embodiment of the present invention, the second control structure includes a second electric pulley 65 rotatably connected to the second movable seat 61 and engaging with the track 4. When the second electric pulley 65 rotates, it drives the second movable seat 61 to move on the track 4 through the frictional reaction force between it and the track 4.

[0040] As an optional embodiment of the present invention, the first electric pulley 54 abuts against the inner or outer circumference of the track 4, rather than the upper or lower side of the track 4. This is mainly because during bending, the reaction force generated by the bending pressure head 53 will drive the first movable seat 51 to move upward. Due to processing errors, there is a certain gap between the first movable seat 51 and the track 4, which causes the first movable seat 51 to move upward a certain distance when it receives an upward force. Although it is very small, it may affect the cooperation between the first electric pulley 54 and the track 4, causing the moving speed of the first movable seat 51 on the track 4 to change. This will cause the bending pressure head 53 and the bending seat 3 to be unable to maintain the same speed during the bending process. Placing the first electric pulley 52 on the inner or outer circumference of the track 4 can solve the above problem.

[0041] As an optional embodiment of the present invention, at least one pad 7 is provided between two adjacent bending seats 3. The pad 7 is connected to the conveyor belt 1, and the height of the pad 7 is the same as the height of the bending seat 3. This is mainly to support the non-bending position of the board and prevent the non-bending position of the board from drooping and bending, which would affect the posture of the board.

[0042] As an optional embodiment of the present invention, an inner support block 8 is provided on the inner circumference of the conveyor belt 1. The inner support block 8 abuts against the upper inner circumference of the conveyor belt 1. Both the conveyor belt 1 and the inner support block 8 are mounted on the frame. During bending, the inner support block 8 supports the bending seat 3, thereby ensuring the bending effect of the plate. Otherwise, the conveyor belt 1 cannot provide sufficient support for the bending seat 3, and the conveyor belt 1 is prone to stretching and deformation under stress, which affects the movement speed control of the bending seat 3.

[0043] The present invention and its embodiments have been described above illustratively. This description is not restrictive, and the figures shown are only one embodiment of the present invention; the actual structure is not limited thereto. Therefore, if those skilled in the art are inspired by this description and design similar structures and embodiments without departing from the spirit of the present invention, such designs should fall within the protection scope of the present invention.

Claims

1. A bending machine, characterized in that: The device includes a conveyor belt, one end of which is provided with a plate rack. Several bending seats are provided on the conveyor belt. An annular track is provided above the conveyor belt and the plate rack. The track is located on a plane parallel to the conveyor belt. Several bending structures and several conveying mechanisms are sequentially provided on the track. At least one conveying mechanism is provided between two adjacent bending structures. The device also includes a first control structure for controlling the movement of the bending structures on the track and a second control structure for controlling the movement of the conveying mechanisms on the track. The bending structure includes a first movable seat movably connected to the track, and the lower end of the first movable seat is connected to a bending pressure head via a first cylinder. The first control structure includes a first electric pulley rotatably connected to the first movable seat and engaging with the track; The first electric pulley abuts against the inner or outer circumference of the track, but not against the upper or lower sides of the track; The conveying mechanism includes a second movable seat movably connected to the track. The lower end of the second movable seat is connected to a suction cup plate via a second cylinder. Several suction cups are installed on the lower end surface of the suction cup plate. The second control structure includes a second electric pulley that is rotatably connected to the second movable seat and engages with the track.

2. A bending machine according to claim 1, characterized in that: The plate rack includes a base and several side bars vertically connected to the base. The side bars surround to form a plate receiving groove, and the spacing between two opposing side bars is adjustable.

3. A bending machine according to claim 2, characterized in that: The plate receiving groove is provided with a movable base plate, which is connected to the base by an elastic telescopic rod.

4. A bending machine according to any one of claims 1-3, characterized in that: At least one pad is provided between two adjacent bending seats, and the pad is connected to the conveyor belt.

5. A bending machine according to any one of claims 1-3, characterized in that: The inner circumference of the conveyor belt is provided with an inner support block, which abuts against the upper inner circumference of the conveyor belt.

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