Auxiliary feeding structure of numerical control bending machine

By designing an auxiliary feeding structure with a storage bin and an adjustable limit device, the problem of sheet material accumulation was solved, automated sheet material conveying was achieved, and the working efficiency and applicability of the CNC bending machine were improved.

CN223997155UActive Publication Date: 2026-03-17DALIAN YUXIANG HEAVY IND MACHINERY CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-03-17
Publication Date
2026-03-17

AI Technical Summary

Technical Problem

The auxiliary feeding structure of traditional CNC bending machines tends to cause sheet metal to accumulate during use, requiring frequent intervention from operators and reducing the machine's efficiency.

Method used

An auxiliary feeding structure including a storage bin, a discharge device, an adjustment device, and a limiting device was designed. A servo motor drives a transmission mechanism to move the sheet metal by pushing the protrusion. Combined with the adjustment and limiting devices, the sheet metal is intermittently pushed out and positioned to avoid accumulation and adapt to CNC bending machines of different heights.

Benefits of technology

It enables automated and timely conveying of sheet metal, avoids accumulation, improves the working efficiency of CNC bending machines, and has a wider range of applications.

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Abstract

The utility model discloses an auxiliary feeding structure of a numerical control bending machine, which comprises a material storage box, the inner wall of the material storage box is provided with a plate main body, the inner wall of the material storage box is provided with a material discharging device, the material discharging device comprises a transmission mechanism which is rotatably connected to the inner wall of the material storage box through a bearing; the bent plate is mounted on the inner wall of the storage box and is attached to the outer wall of the plate main body; the protruding block is installed on the outer wall of the transmission mechanism and abuts against one side of the plate body. The utility model relates to the technical field of auxiliary feeding of bending machines, in particular to an auxiliary feeding structure of a numerical control bending machine, which is characterized in that a plurality of plate main bodies are placed in a storage box and are intermittently pushed outwards through a discharging device, so that plate accumulation is avoided, and the plates are intermittently moved into the numerical control bending machine, so that the plate main bodies are continuously fed into the numerical control bending machine. And the multiple plates are placed into the discharging device through the forklift at the same time, the plates are conveyed in time, and the working efficiency of the numerical control bending machine cannot be reduced.
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Description

Technical Field

[0001] This utility model relates to the field of auxiliary feeding technology for bending machines, specifically an auxiliary feeding structure for a CNC bending machine. Background Technology

[0002] CNC bending machines are commonly used tools in sheet metal processing. They mainly use equipped dies to bend metal sheets into workpieces with various geometric cross-sectional shapes. Current bending machines generally use dedicated CNC systems. The coordinate axes of bending machines have evolved from single axes to 12 axes. The CNC system can automatically realize the control of slide depth, slide tilt adjustment, back gauge front and back adjustment, left and right adjustment, pressure tonnage adjustment, and slide approach working speed adjustment, etc.

[0003] Currently, CNC bending machines generally use an auxiliary feeding mechanism to feed the sheet metal to be bent. When using the existing auxiliary feeding structure, the height of the auxiliary feeding structure is controlled by a lifting device to meet the needs of different models of bending machines. Specifically, the sheet metal is placed on the top of the auxiliary feeding machine, and the external power supply of multiple servo motors is connected. When the multiple servo motors work, they drive the rollers to rotate, and the rollers drive the sheet metal forward, sending the sheet metal into the CNC bending machine.

[0004] In traditional CNC bending machines, the auxiliary feeding structure involves placing the sheet metal on top of the auxiliary feeding machine. Multiple rollers then move the sheet metal forward, transporting it into the CNC bending machine for processing. To prevent the sheet metal from piling up on top of the auxiliary feeding machine, operators need to periodically place the sheet metal on top of the feeding structure. Failure to do so in a timely manner will reduce the working efficiency of the CNC bending machine. Utility Model Content

[0005] To address the shortcomings of existing technologies, this utility model provides an auxiliary feeding structure for CNC bending machines. This solves the problem that in traditional CNC bending machine auxiliary feeding structures, the sheet metal is placed above the auxiliary feeding machine, and multiple rollers move the sheet metal forward to transport it into the CNC bending machine for processing. To prevent the sheet metal from accumulating on top of the auxiliary feeding machine, operators need to periodically place the sheet metal on top of the feeding structure. Failure to do so reduces the working efficiency of the CNC bending machine.

[0006] To achieve the above objectives, this utility model provides the following technical solution: an auxiliary feeding structure for a CNC bending machine, comprising a storage bin, an inner wall of which is provided with a sheet metal body, and a discharge device comprising: a transmission mechanism rotatably connected to the inner wall of the storage bin via bearings; a bending plate installed on the inner wall of the storage bin and fitting against the outer wall of the sheet metal body; a protrusion installed on the outer wall of the transmission mechanism and abutting against one side of the sheet metal body; and a servo motor detachably connected to one side of the transmission mechanism and detachably connected to the inner wall of the storage bin; wherein, when the servo motor is working, it drives the protrusion through the transmission mechanism to push the sheet metal body outward.

[0007] Preferably, the inner wall of the storage bin is provided with an adjustment device, which includes: a threaded rod rotatably connected to the outer wall of the storage bin via a bearing; a slider threadedly connected to the inner wall of the threaded rod; a discharge plate movably connected to the outer wall of the slider and rotatably connected to the outer wall of the curved plate via a pin; and multiple rollers, all rotatably connected to the inner wall of the discharge plate via bearings; wherein, when the threaded rod rotates, it drives the discharge plate to rotate via the slider, and the discharge plate adjusts the position of the rollers.

[0008] Preferably, the inner wall of the storage box is fitted with a door panel.

[0009] Preferably, the storage box is equipped with support legs at the four corners of its bottom.

[0010] Preferably, the top of the discharge plate is provided with a limiting device, which includes: two side plates, both installed on the top of the discharge plate; a bidirectional lead screw, rotatably connected to the inner wall of the two side plates via bearings; a limiting rod, installed on the inner wall of the two side plates; and two inclined plates, both movably connected to the outer wall of the side plates and threadedly connected to the outer wall of the bidirectional lead screw. Since the limiting rod limits the two inclined plates, when the bidirectional lead screw rotates, it drives the two inclined plates to move, thereby adjusting the plates above the two rollers to a centered position. Beneficial effects

[0011] This utility model provides an auxiliary feeding structure for a CNC bending machine. It has the following advantages: This auxiliary feeding structure for the CNC bending machine places multiple sheet metal bodies into the storage bin, and then intermittently pushes the sheet metal bodies outwards through a discharge device, preventing sheet metal accumulation. Multiple sheet metal bodies are intermittently moved into the CNC bending machine, and multiple sheet metal bodies can be simultaneously placed into the discharge device by a forklift, ensuring timely sheet metal delivery without reducing the working efficiency of the CNC bending machine.

[0012] The position of the discharge plate and the roller is adjusted by the adjustment device. After the roller position is adjusted, the plate can be fed into the CNC bending machine at different heights, which improves the applicability of the auxiliary feeding structure. The limiting device makes the plate position in the center of the roller, which facilitates the plate to enter the CNC bending machine for bending. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the structure of this utility model;

[0014] Figure 2 for Figure 1 A schematic diagram of the planar section structure;

[0015] Figure 3 for Figure 1 Schematic diagram of the connection structure of the transmission mechanism, the bent plate and the protrusion;

[0016] Figure 4 for Figure 1 A schematic diagram of the connection structure of the middle side plate, the two-way lead screw, and the limit rod.

[0017] In the diagram: 1. Storage bin; 2. Discharge device; 21. Transmission mechanism; 22. Bending plate; 23. Protrusion; 24. Servo motor; 3. Adjustment device; 31. Threaded rod; 32. Slider; 33. Discharge plate; 34. Roller; 4. Limiting device; 41. Side plate; 42. Two-way lead screw; 43. Limiting rod; 44. Inclined plate; 5. Door panel; 6. Support leg; 7. Main body of the sheet material. Detailed Implementation

[0018] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0019] Those skilled in the art can connect the components in this case sequentially. The specific connection and operation sequence should refer to the working principle described below. The detailed connection methods are well-known technologies in the field. The working principle and process are mainly described below.

[0020] In traditional CNC bending machines, the auxiliary feeding structure involves placing the sheet metal on top of the auxiliary feeding machine and moving it forward via multiple rollers to transport it into the CNC bending machine for processing. To prevent the sheet metal from piling up on top of the auxiliary feeding machine, the operator needs to periodically place the sheet metal on top of the feeding structure. If the operator does not place the sheet metal in a timely manner, it will reduce the working efficiency of the CNC bending machine.

[0021] In view of this, the present invention provides an auxiliary feeding structure for a CNC bending machine, which puts multiple sheet metal bodies into the storage box and pushes the sheet metal bodies out intermittently through the discharge device, so as not to cause the sheet metal to accumulate. Multiple sheet metal bodies are moved intermittently into the CNC bending machine, and multiple sheet metal bodies are simultaneously put into the discharge device by a forklift. The sheet metal is delivered in a timely manner and does not reduce the working efficiency of the CNC bending machine.

[0022] Example 1: By Figure 1 , 2 As can be seen from points 3 and 4, an auxiliary feeding structure for a CNC bending machine includes a storage bin 1. The inner wall of the storage bin 1 is provided with a sheet metal body 7. The inner wall of the storage bin 1 is provided with a discharge device 2. The discharge device 2 includes: a transmission mechanism 21, which is rotatably connected to the inner wall of the storage bin 1 via bearings; a bending plate 22, which is installed on the inner wall of the storage bin 1 and fits against the outer wall of the sheet metal body 7; a protrusion 23, which is installed on the outer wall of the transmission mechanism 21 and abuts against one side of the sheet metal body 7; and a servo motor 24, which is detachably connected to one side of the transmission mechanism 21 and detachably connected to the inner wall of the storage bin 1. When the servo motor 24 is working, it drives the protrusion 23 through the transmission mechanism 21 to push the sheet metal body 7 outward.

[0023] In the specific implementation process, it is worth noting that the transmission mechanism 21 is composed of two sprockets and a chain meshing, and the servo motor 24 is model SM80-D601930. When the servo motor 24 is working, it drives the transmission mechanism 21 to rotate, and the transmission mechanism 21 pushes the plate body 7 to move outward through the protrusion 23.

[0024] It is understandable that during the bending process of the same batch of plates by the CNC bending machine, since the bending steps are the same, the cycle required to bend each plate is constant. According to the bending speed of the CNC bending machine, the speed of the servo motor 24 is appropriately adjusted to ensure that the output speed of the auxiliary feeding structure of the CNC bending machine in this embodiment matches the efficiency of the CNC bending machine. That is, after the CNC bending machine completes the bending and unloading of the previous plate, the auxiliary feeding structure of the CNC bending machine in this embodiment can transport the next plate to the station of the CNC bending machine for bending. This process is repeated to achieve automatic and timely feeding.

[0025] Specifically, when using the auxiliary feeding structure of the CNC bending machine, the servo motor 24 drives the transmission mechanism 21 to rotate, the transmission mechanism 21 drives the protrusion 23 to move, the protrusion 23 pushes the bottom plate body 7 to move outward, and after the bottom plate body 7 moves outward, the upper plate body 7 moves downward under the influence of gravity to facilitate the next outward push.

[0026] Example 2: From Figure 1 and 2It is known that the inner wall of the storage box 1 is provided with an adjustment device 3, which includes: a threaded rod 31, which is rotatably connected to the outer wall of the storage box 1 through a bearing; a slider 32, which is threadedly connected to the inner wall of the threaded rod 31; a discharge plate 33, which is movably connected to the outer wall of the slider 32 and rotatably connected to the outer wall of the bent plate 22 through a pin; and multiple rollers 34, all of which are rotatably connected to the inner wall of the discharge plate 33 through a bearing. When the threaded rod 31 rotates, it drives the discharge plate 33 to rotate through the slider 32, and the discharge plate 33 adjusts the position of the rollers 34.

[0027] In the specific implementation process, it is worth noting that the twisting threaded rod 31 drives the discharge plate 33 to rotate through the slider 32, and the discharge plate 33 adjusts the position of the roller 34;

[0028] Furthermore, a door panel 5 is installed on the inner wall of the storage box 1;

[0029] In the specific implementation process, it is worth noting that after the door panel 5 is opened, it is convenient to maintain and repair the discharge device 2 inside the storage box 1;

[0030] Furthermore, support legs 6 are installed at the four corners of the bottom of the storage box 1;

[0031] In the specific implementation process, it is worth noting that the support leg 6 makes the storage box 1 more stable during use;

[0032] Specifically, based on the above embodiment one, the operator twists the threaded rod 31 to rotate, and the threaded rod 31 drives the discharge plate 33 to rotate through the slider 32. The discharge plate 33 adjusts the position of the roller 34. After the roller 34 is adjusted, the plate is conveyed into the CNC bending machine at different heights.

[0033] Example 3: From Figure 1 , 2 As shown in section 4, the top of the discharge plate 33 is provided with a limiting device 4, which includes: two side plates 41, both installed on the top of the discharge plate 33; a bidirectional screw 42, rotatably connected to the inner wall of the two side plates 41 via bearings; a limiting rod 43, installed on the inner wall of the two side plates 41; and two inclined plates 44, both movably connected to the outer wall of the side plates 41 and threadedly connected to the outer wall of the bidirectional screw 42. Since the limiting rod 43 limits the two inclined plates 44, when the bidirectional screw 42 rotates, it drives the two inclined plates 44 to move, thereby adjusting the plate above the two rollers 34 to the center position.

[0034] In the specific implementation process, it is worth noting that after the bidirectional lead screw 42 rotates, the position of the two inclined plates 44 is adjusted, thereby adjusting the position of the plate above the roller 34;

[0035] Specifically, based on the above embodiment one, the worker twists the bidirectional lead screw 42 to rotate, and the limit rod 43 limits the two inclined plates 44. When the bidirectional lead screw 42 rotates, it drives the two inclined plates 44 to move. The two inclined plates 44 make the plate above the roller 34 in a central position, which is convenient for bending the plate.

[0036] It should be noted that, in this document, relational terms such as "first" and "second" are used merely to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, the phrase "comprising an element defined as..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0037] In this utility model, unless otherwise explicitly specified and limited, the terms "installation", "setting", "connection", "fixing", "screw connection", etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal connection of two components or the interaction between two components. Unless otherwise explicitly limited, those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0038] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. An auxiliary feeding structure of a numerical control bending machine, comprising a storage box (1), characterized in that: The inner wall of the storage tank (1) is provided with a plate body (7), the inner wall of the storage tank (1) is provided with a discharging device (2), the discharging device (2) comprises: A transmission mechanism (21) is rotatably connected to the inner wall of the storage tank (1) through a bearing; A bent plate (22) is installed on the inner wall of the storage tank (1) and is in close contact with the outer wall of the plate body (7); A protruding block (23) is installed on the outer wall of the transmission mechanism (21) and abuts against one side of the plate body (7); A servo motor (24) is detachably connected to one side of the transmission mechanism (21) and is detachably connected to the inner wall of the storage tank (1); Wherein, the servo motor (24) drives the protruding block (23) to push the plate body (7) to move outward through the transmission mechanism (21) when working.

2. The auxiliary loading structure of the numerical control bending machine according to claim 1, characterized in that: The inner wall of the storage tank (1) is provided with an adjusting device (3), the adjusting device (3) comprises: A threaded rod (31) is rotatably connected to the outer wall of the storage tank (1) through a bearing; A sliding block (32) is threadedly connected to the inner wall of the threaded rod (31); A discharging plate (33) is movably connected to the outer wall of the sliding block (32) and is rotatably connected to the outer wall of the bent plate (22) through a pin shaft; A plurality of rollers (34) are rotatably connected to the inner wall of the discharging plate (33) through bearings; Wherein, the threaded rod (31) drives the discharging plate (33) to rotate through the sliding block (32) when rotating, and the discharging plate (33) adjusts the use position of the roller (34).

3. The auxiliary feeding structure of the numerical control bending machine according to claim 1, characterized in that: The inner wall of the storage tank (1) is provided with a door plate (5).

4. The auxiliary feeding structure of the numerical control bending machine according to claim 1, characterized in that: The bottom corners of the storage tank (1) are provided with supporting legs (6).

5. The auxiliary loading structure of the numerical control bending machine according to claim 2, characterized in that: The top of the discharging plate (33) is provided with a limiting device (4), the limiting device (4) comprises: Two side plates (41) are installed on the top of the discharging plate (33); A bidirectional screw rod (42) is rotatably connected to the inner walls of the two side plates (41) through bearings; A limiting rod (43) is installed on the inner walls of the two side plates (41); Two inclined plates (44) are movably connected to the outer walls of the side plates (41) and are threadedly connected to the outer walls of the bidirectional screw rod (42); Wherein, the limiting rod (43) limits the two inclined plates (44), and the bidirectional screw rod (42) drives the two inclined plates (44) to move when rotating, thereby adjusting the plate above the two rollers (34) to the central position.