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CN-121573298-B - Cutting device and cutting method

CN121573298BCN 121573298 BCN121573298 BCN 121573298BCN-121573298-B

Abstract

The invention provides a cutting device and a cutting method, wherein the cutting device comprises a cutter for cutting an outer layer of a packaging box, a driving module for driving the cutter to stretch and retract, a detection module comprising a thickness measuring sensor and a material sensor, wherein the thickness measuring sensor is used for detecting the residual thickness of a notch of the outer layer, the material sensor is used for detecting the material characteristic parameter of the notch of the outer layer, and the control module is used for calculating the cut thickness of the notch of the outer layer according to the residual thickness detected by the thickness measuring sensor, calculating the change rate of the material characteristic parameter of the notch of the outer layer according to the material characteristic parameter detected by the material sensor and controlling the operation of the driving module according to the cut thickness and the change rate of the material characteristic parameter. The cutting device can accurately control the feed depth of the cutter, avoids the scratch of the inner layer of the packing box or the product inside the packing box, and facilitates the unpacking operation.

Inventors

  • XIE ZHONGLIANG
  • LIANG ZHEN

Assignees

  • 赫比（上海）家用电器产品有限公司

Dates

Publication Date
20260512
Application Date
20260129

Claims (5)

  1. 1. A cutting method based on a cutting device, characterized in that the cutting device comprises: the cutter is used for cutting the outer layer of the packaging box; The driving module is connected with the cutter and used for driving the cutter to move in a telescopic way; the detecting module comprises a thickness measuring sensor and a material sensor, wherein the thickness measuring sensor is used for detecting the residual thickness of the incision of the outer layer, and the material sensor is used for detecting the material characteristic parameters of the incision of the outer layer; The device comprises a shell, a detection module, a cutter, a shell, a detection module and a control unit, wherein the cutter is arranged in the shell, and when the cutter moves in a telescopic way, a cutter head of the cutter can extend out of the shell or retract into the shell; The control module is used for calculating the cut thickness at the cut of the outer layer according to the residual thickness detected by the thickness measuring sensor, calculating the change rate of the material characteristic parameter at the cut of the outer layer according to the material characteristic parameter detected by the material sensor and controlling the operation of the drive module according to the cut thickness and the change rate of the material characteristic parameter; the cutting method comprises the following steps: The detection module is close to the outer layer of the packaging box, and the initial thickness H0 and the initial material characteristic parameter C0 of the outer layer which are not cut are detected through a thickness measuring sensor and a material sensor respectively; The control module is used for driving a cutter to execute a cutting action through the driving module so as to cut the outer layer, and detecting the residual thickness Hn and the material characteristic parameter Cn at the cut of the outer layer in real time through the thickness measuring sensor and the material sensor respectively in the cutting process, wherein the control module is used for calculating the cut thickness H1 at the cut of the outer layer according to the initial thickness H0 and the residual thickness Hn and calculating the material characteristic parameter change rate alpha at the cut of the outer layer according to the initial material characteristic parameter C0 and the material characteristic parameter Cn, wherein H1= |H0-Hn|, alpha= | (C0-Cn)/C0|; When the cut thickness H1 is larger than or equal to a first preset thickness and the material characteristic parameter change rate alpha is larger than or equal to a first preset change rate, the control module controls the cutter to stop feeding or stop feeding and back through the driving module.
  2. 2. The cutting method of claim 1, wherein the cutting method further comprises: in the cutting process, when the cut thickness H1 is smaller than a first preset thickness and the material characteristic parameter change rate alpha is smaller than the first preset change rate, the control module controls the cutter to feed at a uniform speed through the driving module; When the second preset thickness is smaller than or equal to the cut thickness H1 and smaller than the first preset thickness, or the second preset change rate is smaller than or equal to the material characteristic parameter change rate alpha and smaller than the first preset change rate, the control module controls the cutter to decelerate and feed through the driving module.
  3. 3. The cutting method of claim 1, wherein the thickness measuring sensor is an ultrasonic thickness measuring sensor and the material sensor is a capacitive sensor.
  4. 4. The cutting method of claim 1, wherein the driving module comprises a rotary driving motor and a transmission assembly, the transmission assembly is respectively connected with the rotary driving motor and the cutter in a transmission way, the rotary driving motor drives the cutter to move in a telescopic way through the transmission assembly, and the control module is connected with the rotary driving motor in an electric signal way.
  5. 5. The cutting method according to any one of claims 1 to 4, wherein the cutting device further comprises an alarm module, the control module is in electrical signal connection with the alarm module, and when the control module detects that the signals of the thickness measuring sensor and/or the material sensor are abnormal, the control module controls the cutter to stop feeding and retract through the driving module, and simultaneously controls the alarm module to execute alarm actions.

Description

Cutting device and cutting method Technical Field The invention relates to the technical field of cutting devices, in particular to a cutting device and a cutting method. Background In logistics, storage, manufacturing and daily life, unpacking of a packing box (i.e. unpacking the packing box) is one of the common operation links. At present, when the packing box is unpacked, the outer layer of the packing box is generally cut through tools such as a box unpacking cutter (e.g. an art designer cutter and a special box unpacking cutter), but the tools depend on hand feeling of a user to control the cutting depth of the cutters during operation, so that the cutters easily scratch the inner layer of the packing box or products inside the packing box, and the unpacking operation is inconvenient. Disclosure of Invention The invention aims to provide a cutting device which can accurately control the feed depth of a cutter, avoid scratch of the inner layer of a packing box or products in the packing box and is convenient for unpacking operation. The present invention provides a cutting device, comprising: the cutter is used for cutting the outer layer of the packaging box; The driving module is connected with the cutter and used for driving the cutter to move in a telescopic way; the detecting module comprises a thickness measuring sensor and a material sensor, wherein the thickness measuring sensor is used for detecting the residual thickness of the incision of the outer layer, and the material sensor is used for detecting the material characteristic parameters of the incision of the outer layer; The control module is used for calculating the cut thickness of the cut position of the outer layer according to the residual thickness detected by the thickness measuring sensor, calculating the material characteristic parameter change rate of the cut position of the outer layer according to the material characteristic parameter detected by the material sensor and controlling the operation of the drive module according to the cut thickness and the material characteristic parameter change rate. Further, the initial thickness of the outer layer when not cut is H0, the remaining thickness is Hn, the cut thickness is H1, h1= |h0-hn|; The initial material characteristic parameter when the outer layer is not cut is C0, the material characteristic parameter is Cn, and the change rate of the material characteristic parameter is alpha, alpha= | (C0-Cn)/C0|. Further, the thickness measuring sensor is an ultrasonic thickness measuring sensor, and the material sensor is a capacitance sensor. Further, the cutting device further comprises a shell, the cutter is arranged in the shell, when the cutter moves in a telescopic mode, the cutter head of the cutter can extend out of the shell or retract into the shell, and the detection module is arranged at one end, close to the cutter head, of the shell. Further, a front end portion is arranged at one end, close to the cutter head, of the shell, and the detection module is arranged in the front end portion. Further, the outer dimension of the front end portion gradually decreases in the feed direction of the cutter. Further, the driving module comprises a rotary driving motor and a transmission assembly, the transmission assembly is respectively in transmission connection with the rotary driving motor and the cutter, the rotary driving motor drives the cutter to stretch and retract through the transmission assembly, and the control module is in electric signal connection with the rotary driving motor. When the control module detects that the signals of the thickness measuring sensor and/or the material sensor are abnormal, the control module controls the cutter to stop feeding and retract through the driving module, and simultaneously controls the alarm module to execute alarm actions. The invention also provides a cutting method based on the cutting device, which comprises the following steps: The detection module is close to the outer layer of the packaging box, and the initial thickness H0 and the initial material characteristic parameter C0 of the outer layer which are not cut are detected through a thickness measuring sensor and a material sensor respectively; In the cutting process, the control module respectively detects the residual thickness Hn and the material characteristic parameter Cn at the incision of the outer layer in real time through the thickness measuring sensor and the material sensor, calculates the cut thickness H1 at the incision of the outer layer according to the initial thickness H0 and the residual thickness Hn, and calculates the material characteristic parameter change rate alpha at the incision of the outer layer according to the initial material characteristic parameter C0 and the material characteristic parameter Cn; When the cut thickness H1 is larger than or equal to a first preset thickness and the material characteristic parameter change rate alpha is la