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CN-224222582-U - Metal chain curtain sensor protection structure and punching device thereof

CN224222582UCN 224222582 UCN224222582 UCN 224222582UCN-224222582-U

Abstract

The utility model discloses a protection structure of a metal chain curtain sensor and a punching processing device thereof. The punching device is arranged on the punching device and comprises a punch head and a protective component. The protection component at least comprises two rows of metal chain curtains, the two rows of metal chain curtains are sequentially covered on the periphery of the punch from inside to outside, and a distance is reserved between the inner row of metal chain curtains and the outer row of metal chain curtains. The punching device is electrically connected with a controller through the protection circuit, and the protection circuit correspondingly controls the connection and disconnection of the punching device and the controller according to the disconnection or connection of the two rows of metal chain curtains. When the finger contacts the two rows of metal chain curtains simultaneously, the two rows of metal chain curtains are conducted, and the punching processing device is disconnected with the controller. Through the combination of the metal chain curtain, the protection circuit and the controller, the real-time monitoring and the quick response of the punching area are realized, and the safety is high.

Inventors

  • HE YUESHAN
  • LIANG HAIMING

Assignees

  • 爱途(河源)箱包有限公司

Dates

Publication Date
20260512
Application Date
20250306

Claims (10)

  1. 1. The metal chain curtain sensor protection structure is arranged on a punching device, and the punching device comprises a punch head for punching a workpiece; The protection component at least comprises two rows of metal chain curtains, wherein the two rows of metal chain curtains are sequentially covered on the periphery of the punch from inside to outside, and a distance is reserved between the inner row of metal chain curtains and the outer row of metal chain curtains; The punching device is electrically connected with a controller through the protection circuit, and the protection circuit correspondingly controls the connection and disconnection of the punching device and the controller according to the disconnection or connection of the two rows of metal chain curtains.
  2. 2. The guard structure of claim 1, wherein the metal chain curtain comprises a plurality of sensor chains, each of the sensor chains naturally drops down and is arranged in a surrounding manner along the peripheral side of the punch.
  3. 3. The guard structure of claim 2, wherein the sensor chains of the inner and outer rows of the metal chain curtains are arranged in an inner and outer dislocation.
  4. 4. A metallic chain curtain sensor guard structure as claimed in claim 2 or 3, wherein the distance between the inner and outer adjacent sensor chains is adapted to the width of the finger.
  5. 5. The protection structure of the metal chain curtain sensor is characterized in that the protection circuit comprises a power supply circuit module and a control circuit module, wherein the input end of the power supply circuit module is connected with a mains supply, the output end of the power supply circuit module is respectively connected with the punching device and the control circuit module, and the control circuit module is respectively connected with the controller, the punching device and the two rows of metal chain curtains.
  6. 6. The protection structure of a metal chain curtain sensor according to claim 5, wherein the power supply circuit module comprises a direct current power supply, and the two rows of metal chain curtains are respectively and electrically connected with a positive electrode and a negative electrode of the direct current power supply; The control circuit module correspondingly controls the connection and disconnection of the punching device and the controller according to the disconnection or connection of the two rows of metal chain curtains.
  7. 7. The protection structure of the metal chain curtain sensor according to claim 5 or 6, wherein the control circuit module comprises a relay which is respectively connected with the controller and the punching device, and the controller indirectly controls the on-off of the punch through the relay.
  8. 8. The protective structure of a metal chain curtain sensor according to claim 1, wherein the protective assembly comprises a protective bracket, the protective bracket comprises an annular frame, at least two layers of strip-shaped plates which are arranged in parallel inside and outside the annular frame are arranged on the inner side of the annular frame, the metal chain curtain is hung on the lower edge of each strip-shaped plate, and a distance is arranged between the inner layer of strip-shaped plate and the outer layer of strip-shaped plate; the annular frame at least surrounds three sides of the punch, and the strip-shaped plate is arranged on the three sides; And one side of the annular frame is provided with a safety baffle.
  9. 9. The protection structure of a metal chain curtain sensor according to claim 8, wherein the punching device further comprises a lifting assembly for driving the punch to reciprocate up and down, the lifting assembly comprises a pair of guide posts, and two ends of the protection bracket are respectively arranged on the two guide posts through locking pieces; The inner layer and the outer layer of the strip-shaped plates are connected through the mounting piece, and insulation is arranged between the inner layer and the outer layer of the strip-shaped plates.
  10. 10. A punching device with a protecting structure of a metal chain curtain sensor, comprising a frame and an operating platform arranged on the frame, and the punching device is characterized by further comprising the protecting structure of the metal chain curtain sensor according to any one of claims 1 to 9, wherein the protecting structure is arranged on the operating platform.

Description

Metal chain curtain sensor protection structure and punching device thereof Technical Field The utility model belongs to the technical field of punching devices, and particularly relates to a protection structure of a metal chain curtain sensor and a punching device thereof. Background In modern industrial production, a punching machine is used as an important processing device, which can efficiently punch holes on workpieces. In the prior art, chinese patent with publication number of CN201711413U discloses a punching machine, which comprises a frame, an electric cabinet, a control panel, a motor, a hydraulic pump, a hydraulic cylinder, a male die and a female die, wherein the position of the male die and the position of the female die can be transversely adjusted in the prior art, so that the upper and lower corresponding position relationship of the male die and the female die is more accurate. However, the conventional punching machine brings convenience and has serious safety hazards. In the above prior art, there is mentioned a need for an employee to move the fixed block inwardly or outwardly by hand. In case of improper operation of staff or insufficient equipment protection measures, industrial accidents are very easy to occur, and as a result, far from simple clamping injuries, a hole can be punched on the finger, even the finger is cut off, which not only brings great physical injury and pain to staff, but also brings high medical compensation and shutdown loss to enterprises. In order to cope with the potential safety hazards, the conventional punching machine adopts a series of safety protection measures, mainly comprising the operation of a switch button by two hands, the installation of an infrared protection switch, the judgment of danger by using a camera-image recognition technology and the like. However, in practical applications, these safety protection measures also have drawbacks: When the protection mode of operating the switch button by two hands is adopted, an operator must press the switch by two hands simultaneously to start the punching machine, so that fingers can be prevented from entering a dangerous area during one-hand operation. However, in certain specific processing scenarios, this protection approach is not applicable. For example, when the workpiece being processed is a large case, the operator needs to grasp and fix the workpiece with both hands, and cannot use both hands to operate the switch at the same time to start the punching machine at all, so there is a significant limitation in this protection manner. The infrared protection switch detects whether an object enters a dangerous area or not by transmitting and receiving infrared rays, and when the object shields the infrared rays, the equipment automatically stops running. However, in some working scenarios of punching machines, due to limitations of space layout, workpiece shape, and other factors, an infrared protection switch is not installed at a proper position, so that the infrared protection switch cannot play a proper protection role. The camera-image recognition technology captures images of dangerous areas by using a camera, and judges whether objects such as fingers enter through an image recognition algorithm. Although the technology has higher accuracy and intelligent degree, the equipment cost is high, and the technology is difficult to popularize and apply on a large scale. In order to solve the defects, a protection device utilizing mechanical dynamic enclosing shielding appears on the market, the protection function is realized through the organic glass protection cover, when a finger is in a dangerous area, the organic glass protection cover cannot be lowered in place, even if a foot switch is stepped on, the punching machine cannot be started, and only when no finger enters the dangerous area and the organic glass protection cover is lowered in place, the foot switch is stepped on, and the punching machine can normally complete the punching action. Although this protection approach solves to some extent the safety problem in processing large case workpieces, and its cost is somewhat reduced compared to the camera-image recognition technique. However, for most small and medium-sized enterprises, the manufacturing cost of the protection device occupies a large part of the manufacturing budget of the punching machine, and the cost is still not small. Therefore, there is a need for a protective structure with higher safety, higher applicability and lower cost, and a punching device thereof. Disclosure of Invention Aiming at the problems in the related art, the utility model provides a protection structure of a metal chain curtain sensor and a punching device thereof, so as to overcome the technical problems in the prior art. The technical scheme of the utility model is realized by that the protection structure of the metal chain curtain sensor is arranged on a punching device, and the punching devi