Intelligent protection device for bending machine production

The protective unit, composed of a lifting plate and an infrared sensor, solves the problem that existing intelligent protective devices for bending machines cannot automatically adjust the beam density, enabling intelligent adjustment of the protective area according to the thickness of the sheet material, thus improving production safety and efficiency.

CN224322253UActive Publication Date: 2026-06-05JIANGSU CHUANGHENG MASCH TECH CO LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
JIANGSU CHUANGHENG MASCH TECH CO LTD
Filing Date
2025-05-06
Publication Date
2026-06-05

AI Technical Summary

Technical Problem

Existing intelligent protection devices for bending machines have difficulty automatically adjusting beam density, resulting in the protection area not adapting to changes in sheet thickness, leading to false triggering or safety hazards.

Method used

The protective unit consists of a lifting plate and an infrared sensor. The infrared beam density is adjusted by a motor-driven screw, and the protective area is intelligently adjusted according to the thickness of the plate.

Benefits of technology

It enables automatic adjustment of the protection zone based on the thickness of the sheet material, avoiding accidental triggering and improving production safety and efficiency.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to the technical field of bending machine, concretely is a kind of intelligent protection device for bending machine production, including machine body, still include: head, the head is set in the top of machine body, two hydraulic oil cylinders are fixedly connected between the head and machine body, the bottom of the head is fixedly connected with two auxiliary rods, and the bottom of two auxiliary rods is all inserted into machine body;Bending knife, the bending knife is fixedly connected in the bottom of head, the top of machine body is fixedly connected with bending seat, the bending knife and bending seat cooperate and are bent, protection unit, two the protection unit is respectively arranged in the two sides of machine body, the protection unit includes lifting plate and infrared inductor, two the protection unit is respectively arranged in the two sides of machine body, the protection unit includes lifting plate and infrared inductor, this bending machine production intelligent protection device can adjust the beam density of infrared inductor, and according to the thickness of plate intelligent adjustment protection area, avoid false triggering.
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Description

Technical Field

[0001] This utility model relates to the field of bending machine technology, specifically to an intelligent protective device for bending machine production. Background Technology

[0002] In the daily operation of bending machines in the manufacturing industry, safety protection is of paramount importance. The operation of bending machines involves complex mechanical movements and high-intensity pressure. If protection is lacking or inadequate, operators are prone to mechanical injuries. Ensuring safety protection is a necessary prerequisite for ensuring the orderly progress of production.

[0003] Most existing intelligent safety devices for bending machines on the market rely on infrared detection to achieve their protective purpose. However, these traditional devices have significant shortcomings in practical applications. They are difficult to automatically adjust the beam density. Due to the large differences in thickness among different plates, if the beam density remains constant during processing, it is impossible to accurately adjust the protection area according to the actual thickness of the plate. This results in the protection area being too large when dealing with thinner plates, and normal operating actions in some non-dangerous areas being easily misjudged as dangerous behaviors, thus frequently triggering the protection mechanism and affecting production efficiency. On the other hand, when dealing with thicker plates, the protection area may be insufficient to fully cover the potential danger range, posing safety hazards to operators. Therefore, we propose an intelligent safety device for bending machine production. Utility Model Content

[0004] One of the technical problems this application aims to solve is: it is not easy to automatically adjust the beam density and intelligently adjust the protection area according to the thickness of the plate to avoid accidental triggering.

[0005] To address the aforementioned technical problems, this application provides an intelligent safety device for bending machine production, comprising a machine body and further including:

[0006] The machine head is located on the top of the machine body. Two hydraulic cylinders are fixedly connected between the machine head and the machine body. Two auxiliary rods are fixedly connected to the bottom of the machine head, and the bottom ends of the two auxiliary rods extend into the machine body.

[0007] A bending knife is fixedly connected to the bottom of the machine head, and a bending seat is fixedly connected to the top of the machine body. The bending knife and the bending seat cooperate to perform bending.

[0008] The protective unit comprises two units respectively located on both sides of the machine body. Each protective unit includes a lifting plate and an infrared sensor. The infrared sensor is located on one side of the lifting plate. Multiple lifting plates synchronously drive multiple infrared sensors to rise and fall, thereby adjusting the infrared beam density.

[0009] In some embodiments, the protective unit includes two limiting plates disposed on the outside of the body, each limiting plate having a limiting groove on its inner side, and two support plates fixedly connected between the bottom of the two limiting plates and the body, with a protective component disposed between the two support plates for driving the infrared sensor to move and adjust the infrared beam density.

[0010] In some embodiments, the protective component includes a lifting plate slidably connected between two limiting grooves. A groove is provided on one side of the lifting plate, and an infrared sensor is fixedly connected in the groove. Two sliding grooves are provided on one side of the lifting plate, and two slide rails are fixedly connected to the other side of the lifting plate. A screw is threadedly connected to the lifting plate, and a motor is provided at the bottom of the lifting plate. The drive end of the motor is fixedly connected to the screw, and the bottom of the motor is fixedly connected to the machine body.

[0011] In some embodiments, the protective components are configured in multiple groups, and the multiple lifting plates are slidably connected by slide grooves and slide rails.

[0012] In some embodiments, a support block is fixedly connected between a plurality of motors and the body.

[0013] In some embodiments, a sensor plate is fixedly connected to the bottom of the machine body, and a position sensor is fixedly connected to one side of the machine head.

[0014] In some embodiments, a support rod is fixedly connected to the bottom of the machine body, and a box is fixedly connected to the top of the support rod, with a start switch provided inside the box.

[0015] This utility model has at least the following beneficial effects:

[0016] Before bending, multiple motors are started according to the thickness of the workpiece, which in turn drive multiple screws to rotate and move multiple lifting plates between two limit plates. Multiple infrared sensors rise in sequence, which can expand the beam density, and vice versa. In short, the beam density of the infrared sensors can be adjusted to intelligently adjust the protection area according to the thickness of the material and avoid false triggering. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0018] Figure 2 This is a schematic diagram of the protective unit structure of this utility model;

[0019] Figure 3 This is a schematic diagram of the lifting plate structure of this utility model;

[0020] Figure 4 This utility model Figure 3 Enlarged view of point A;

[0021] Figure 5 This utility model Figure 1 Side view.

[0022] In the diagram: 1. Machine body; 2. Machine head; 21. Hydraulic cylinder; 22. Auxiliary rod; 3. Bending knife; 31. Bending seat; 4. Protective unit; 41. Limiting plate; 42. Limiting groove; 43. Support plate; 44. Protective component; 441. Lifting plate; 442. Groove; 443. Infrared sensor; 444. Slide rail; 445. Slide rail; 446. Screw; 447. Motor; 5. Support block; 6. Sensing plate; 7. Position sensor; 8. Support rod; 9. Box body; 10. Start switch. Detailed Implementation

[0023] 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. Example 1

[0024] Please see Figures 1-5 This utility model provides a technical solution:

[0025] An intelligent protective device for bending machine production includes a machine body 1, and further includes: a machine head 2 and a bending blade 3. The machine head 2 is located on the top of the machine body 1, and two hydraulic cylinders 21 are fixedly connected between the machine head 2 and the machine body 1. Two auxiliary rods 22 are fixedly connected to the bottom of the machine head 2, and the bottom ends of the two auxiliary rods 22 extend into the machine body 1. The bending blade 3 is fixedly connected to the bottom of the machine head 2, and a bending seat 31 is fixedly connected to the top of the machine body 1. The bending blade 3 and the bending seat 31 cooperate to perform bending. Two protective units 4 are respectively located on both sides of the machine body 1. The protective unit 4 includes a lifting plate 441 and an infrared sensor 443. The infrared sensor 443 is located on one side of the lifting plate 441. Multiple lifting plates 441 synchronously drive multiple infrared sensors 443 to rise and fall, thereby adjusting the infrared beam density.

[0026] The protection unit 4 includes two limiting plates 41 disposed on the outside of the body 1. Each of the two limiting plates 41 has a limiting groove 42 on its inner side. The bottom of the two limiting plates 41 is fixedly connected to the body 1 with two support plates 43. A protective component 44 is disposed between the two support plates 43 to drive the infrared sensor 443 to move and adjust the infrared beam density. The two sets of protection units 4 are disposed on both sides of the body 1. With two sets, if one set of protection units 4 is damaged, the other set of protection units 4 can serve as a backup to avoid damage leading to an accident.

[0027] The protective component 44 includes a lifting plate 441 slidably connected between two limiting grooves 42. A groove 442 is provided on one side of the lifting plate 441, and an infrared sensor 443 is fixedly connected in the groove 442. Two sliding grooves 444 are provided on one side of the lifting plate 441, and two slide rails 445 are fixedly connected on the other side of the lifting plate 441. A screw 446 is threadedly connected to the lifting plate 441. A motor 447 is provided at the bottom of the lifting plate 441. The drive end of the motor 447 is fixedly connected to the screw 446, and the bottom of the motor 447 is fixedly connected to the body 1. The protective component 44 is configured in multiple sets, and multiple lifting plates 441 are slidably connected to each other through sliding grooves 444 and slide rails 445. Support blocks 5 are fixedly connected between multiple motors 447 and the body 1. By setting support blocks 5, the installation height of multiple motors 447 can be raised sequentially to avoid multiple motors 447 from blocking and interfering with each other.

[0028] During use, the hydraulic cylinder 21 drives the machine head 2 to descend, which in turn drives the bending blade 3 to descend and cooperate with the bending seat 31 to perform bending. During this process, according to the thickness of the workpiece, multiple motors 447 are started, and the driving speed of the multiple motors 447 increases in sequence. Then, multiple screws 446 are driven to rotate in sequence, which in turn drives multiple lifting plates 441 to rise between two limit plates 41. Multiple infrared sensors 443 rise in sequence, which can expand the beam density, and vice versa. In short, the beam density of the infrared sensors 443 can be adjusted. Example 2

[0029] Please see Figure 1 This utility model provides a technical solution:

[0030] Unlike Embodiment 1, a sensor plate 6 is fixedly connected to the bottom of the machine body 1, and a position sensor 7 is fixedly connected to one side of the machine head 2; a support rod 8 is fixedly connected to the bottom of the machine body 1, and a box 9 is fixedly connected to the top of the support rod 8. A start switch 10 is installed inside the box 9. The safety valve of the hydraulic cylinder 21 is existing technology and will not be described in detail here.

[0031] When the operator enters the range of the sensing plate 6, the position sensor 7 will detect it and then activate the safety valve of the hydraulic cylinder 21. Then, the operator can manually press the start switch 10 to start the hydraulic cylinder 21.

[0032] It should be noted that, in this document, relational terms such as "first" and "second" are used only 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 process, method, article, or apparatus.

[0033] 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.

Claims

1. An intelligent protective device for bending machine production, comprising a machine body (1), characterized in that: It also includes: The machine head (2) is located on the top of the machine body (1). Two hydraulic cylinders (21) are fixedly connected between the machine head (2) and the machine body (1). Two auxiliary rods (22) are fixedly connected to the bottom of the machine head (2). The bottom ends of the two auxiliary rods (22) extend into the machine body (1). A bending knife (3) is fixedly connected to the bottom of the machine head (2), and a bending seat (31) is fixedly connected to the top of the machine body (1). The bending knife (3) and the bending seat (31) cooperate to perform bending. The two protective units (4) are respectively arranged on both sides of the body (1). The protective unit (4) includes a lifting plate (441) and an infrared sensor (443). The infrared sensor (443) is arranged on one side of the lifting plate (441). Multiple lifting plates (441) synchronously drive multiple infrared sensors (443) to rise and fall, thereby adjusting the infrared beam density.

2. The intelligent protective device for bending machine production according to claim 1, characterized in that: The protective unit (4) includes two limiting plates (41) disposed on the outside of the body (1). Each of the two limiting plates (41) has a limiting groove (42) on its inner side. The bottom of the two limiting plates (41) is fixedly connected to the body (1) with two support plates (43). A protective component (44) is disposed between the two support plates (43) for driving the infrared sensor (443) to move and adjust the infrared beam density.

3. The intelligent protective device for bending machine production according to claim 2, characterized in that: The protective component (44) includes a lifting plate (441) slidably connected between two limiting grooves (42). A groove (442) is provided on one side of the lifting plate (441), and an infrared sensor (443) is fixedly connected in the groove (442). Two sliding grooves (444) are provided on one side of the lifting plate (441), and two sliding rails (445) are fixedly connected on the other side of the lifting plate (441). A screw (446) is threadedly connected to the lifting plate (441), and a motor (447) is provided at the bottom of the lifting plate (441). The driving end of the motor (447) is fixedly connected to the screw (446), and the bottom of the motor (447) is fixedly connected to the machine body (1).

4. The intelligent protective device for bending machine production according to claim 2, characterized in that: The protective component (44) is configured in multiple groups, and the multiple lifting plates (441) are slidably connected to each other through the slide groove (444) and the slide rail (445).

5. The intelligent protective device for bending machine production according to claim 3, characterized in that: Support blocks (5) are fixedly connected between the multiple motors (447) and the body (1).

6. The intelligent protective device for bending machine production according to claim 1, characterized in that: A sensor plate (6) is fixedly connected to the bottom of the body (1), and a position sensor (7) is fixedly connected to one side of the head (2).

7. The intelligent protective device for bending machine production according to claim 1, characterized in that: The bottom of the body (1) is fixedly connected to a support rod (8), and the top of the support rod (8) is fixedly connected to a box (9). A start switch (10) is provided inside the box (9).