阅读说明：本技术 一种不良品自动排出系统及方法 (Automatic defective product discharge system and method ) 是由 丁彩红 吴长泉 彭倚天 杨延竹 丁树杨 黄瑶 杨柳 于 2020-05-08 设计创作，主要内容包括：本发明涉及一种不良品自动排出系统,其特征在于,包括物料输送系统,裁切刀具,检测单元,接料排出单元和用于安装上述组成部件的机架。本发明的另一个技术方案是提供了一种良品自动排出的方法,其特征在于,采用上述的系统,实施对物料表面瑕疵的自动检测和不良品的裁切和自动排出。由于采用了上述的技术方案,本发明与现有技术相比,具有以下的优点和积极效果：提高了物料裁切机器的自动化和智能化程度,降低工人的高度强度,提高生产效率。(The invention relates to an automatic defective product discharging system which is characterized by comprising a material conveying system, a cutting tool, a detection unit, a material receiving and discharging unit and a rack for mounting the components. The other technical scheme of the invention is to provide a method for automatically discharging good products, which is characterized in that the system is adopted to automatically detect the surface flaws of the materials and cut and automatically discharge the defective products. Due to the adoption of the technical scheme, compared with the prior art, the invention has the following advantages and positive effects: the automation and the intelligent degree of the material cutting machine are improved, the height strength of workers is reduced, and the production efficiency is improved.)

1. The utility model provides an automatic discharge system of defective products, its characterized in that includes material conveying system, cuts cutter, detecting element, connects material discharge unit and frame, wherein: the machine frame is used for fixing the material conveying system, the cutting tool, the detection unit and the material receiving and discharging unit, and the material conveying system conveys the material to be cut to the cutting tool through traction and guiding to be cut into a product with the height of H; the detecting element sets up in the material top, the detecting element carries out real-time detection to the flaw condition on material surface, when detecting there is the flaw, material conveying system, cut the cutter and connect material discharge unit to carry out corresponding action under control system control, in order to accomplish to the defective products cut and connect material discharge, the material position definition that sets up the department with the detecting element is A point, the position definition that the material was decided by the cutter is B point, the length L of material between A point and the B point is greater than product height H, N is rounding (L/H), then there:

the material conveying system realizes intermittent conveying or continuous conveying of materials under the control of the control system and comprises a traction roller and a transition roller, wherein the traction roller is driven by power to rotate, the transition roller rotates freely, the traction roller drives the materials to be conveyed forwards, and the transition roller is used for changing the movement direction of the materials so that the materials are conveyed to the cutting tool in a traction mode in the vertical direction;

the cutting tool comprises a fixed tool with a fixed position and a movable tool capable of making reciprocating translation under the control of a control system, a material is conveyed between two blades of the fixed tool and the movable tool, and the control system drives the movable tool to move towards the direction of the fixed tool so that the two blades are engaged in a staggered manner to cut the material;

the state of the material receiving and discharging unit is switched between an initial state and a material receiving and discharging state, when the detection unit does not detect that a flaw exists, the material is conveyed to the position of the cutting tool and is cut into a product with the height of H, and at the moment, the material receiving and discharging unit is in the initial state; when the detection unit detects that a flaw exists, after the cutting tool continues to finish cutting N-M products, M is a predetermined design constant and is not less than 1 and not more than N, the material receiving discharge unit is changed to a material receiving discharge state, the material conveying system enables the material to move by a length S, the material with the length S contains the flaw, the material with the length S is cut by the cutting tool and then discharged through the material receiving discharge unit, and the material receiving discharge unit is changed to an initial state.

2. The automatic reject discharge system of claim 1 wherein said transition roll and adjacent pulling rolls tension said material into a plane above which said sensing unit is disposed.

3. The automatic defective product discharging system according to claim 1, wherein the receiving material discharging unit includes a receiving plate and two sets of parts, the receiving plate and the two sets of parts are arranged in an inclined manner, the two sets of parts are symmetrically arranged on two sides of the receiving plate in the width direction, and the two sets of parts drive the receiving plate to change between the initial state and the receiving material discharging state; connect the flitch to be had the free end and be used for accepting the planar thin flat board piece of bending of material, connect the planar width of flitch to hold the material of being decided, when connect the flitch to be in connect the material discharge state, connect the free end of flitch to be located the below of the cutting edge of stationary knife, and connect the plane of flitch with the material is crossing at length direction's extension line.

4. The automatic defective product discharging system according to claim 3, wherein each group of the components comprises a material receiving slide bar, a slide block, a lever support and a driving cylinder, and a cylinder part of the cylinder is rotationally fixed on the rack; one end of the lever is rotatably connected with an output rod of the air cylinder, and the other end of the lever is rotatably connected with one end of the material receiving sliding rod; one end of the lever support is fixed on the rack, the other end of the lever support is provided with a rolling bearing, and the lever is arranged on the other end of the lever support through a waist groove arranged in the middle of the lever support and is not separated; the material receiving slide rod moves linearly along a slide block fixed on the rack and does not depart from the slide block, and the other end of the material receiving slide rod is fixedly connected with one side of the material receiving plate along the width direction.

5. The automatic defective product discharging system according to claim 4, wherein when the material receiving and discharging unit is in an initial state, the output rod of the cylinder is in a fully retracted state, and the free end of the material receiving plate is located below the movable cutter and does not prevent the movable cutter from performing reciprocating translation.

6. A method for automatically discharging defective products, wherein the automatic defective product discharging system according to claim 1 is used, and when the detecting unit detects that the surface of the material has a defect, the method comprises the following steps:

step 1: the material receiving and discharging unit is in an initial state, the material conveying system moves intermittently, a moving cutter of the cutting cutter performs reciprocating translation, N-M products are continuously cut, then the material conveying system stops material conveying, and the moving cutter is retracted to the farthest point of a fixed cutter far away from the cutting cutter;

step 2: the output rod of the cylinder of the material receiving and discharging unit extends out to drive the material receiving plate of the material receiving and discharging unit to move towards the direction of the cutting edge of the fixed cutter, so that the free end of the material receiving plate reaches the position below the cutting edge of the fixed cutter, and the plane of the material receiving plate is intersected with the extension line of the material in the length direction;

and step 3: starting the material conveying system to drive the material to move continuously, after the material is made to travel by a long distance S, stopping the material conveying system, retracting the output rod of the cylinder, and satisfying the length S at the moment: 1) s is more than or equal to A + (L- (N-M) xH), wherein A is more than H; 2) the plane of the material receiving plate is provided with a material;

and 4, step 4: the movable cutter of the cutting cutter is driven to cut the material, and the cut defective products slide along the plane of the material receiving plate and are discharged.

Technical Field

The invention relates to a system and a method for automatically cutting off and discharging unqualified parts in a material during cutting, belonging to the field of material cutting, in particular to the field of flexible material cutting.

Background

Flexible materials, such as non-woven fabrics, absorbent cotton cloth and the like, have stains, impurities, holes and other defects on the surfaces of the materials due to the quality of raw materials or the process in the lapping process. If the materials with defects are secondarily cut into small products, namely unqualified products or defective products, the defective products must be removed, otherwise the qualified rate of the cut products is influenced.

At present, the treatment of bad materials or defective products is generally finished in a manual mode, so that the requirements on the proficiency of the operation skills of workers are improved, and the labor intensity of the workers is also increased. And the manual picking easily causes the defective products to be missed.

In the field of material slitting, manual intensive type is converted into workshop automation at present, higher requirements are put on the intelligence of single machine equipment, and to realize higher intelligence of a slitting machine, the automatic cutting and discharging of parts with flaws in materials in the material slitting operation process (also called automatic defective product discharging) is one of the problems to be solved firstly.

Disclosure of Invention

The purpose of the invention is: realize the automatic cutting and the discharge of unqualified part of material.

In order to achieve the above object, one technical solution of the present invention is to provide an automatic defective product discharge system, which is characterized by comprising a material conveying system, a cutting tool, a detection unit, a material receiving and discharge unit, and a frame, wherein: the machine frame is used for fixing the material conveying system, the cutting tool, the detection unit and the material receiving and discharging unit, and the material conveying system conveys the material to be cut to the cutting tool through traction and guiding to be cut into a product with the height of H; the detecting element sets up in the material top, the detecting element carries out real-time detection to the flaw condition on material surface, when detecting there is the flaw, material conveying system, cut the cutter and connect material discharge unit to carry out corresponding action under control system control, in order to accomplish to the defective products cut and connect material discharge, the material position definition that sets up the department with the detecting element is A point, the position definition that the material was decided by the cutter is B point, the length L of material between A point and the B point is greater than product height H, N is rounding (L/H), then there:

the material conveying system realizes intermittent conveying or continuous conveying of materials under the control of the control system and comprises a traction roller and a transition roller, wherein the traction roller is driven by power to rotate, the transition roller rotates freely, the traction roller drives the materials to be conveyed forwards, and the transition roller is used for changing the movement direction of the materials so that the materials are conveyed to the cutting tool in a traction mode in the vertical direction;

the cutting tool comprises a fixed tool with a fixed position and a movable tool capable of making reciprocating translation under the control of a control system, a material is conveyed between two blades of the fixed tool and the movable tool, and the control system drives the movable tool to move towards the direction of the fixed tool so that the two blades are engaged in a staggered manner to cut the material;

the state of the material receiving and discharging unit is switched between an initial state and a material receiving and discharging state, when the detection unit does not detect that a flaw exists, the material is conveyed to the position of the cutting tool and is cut into a product with the height of H, and at the moment, the material receiving and discharging unit is in the initial state; when the detection unit detects that a flaw exists, after the cutting tool continues to finish cutting N-M products, M is a predetermined design constant, M is more than or equal to 1 and less than N, the material receiving discharge unit is changed to a material receiving discharge state, the material conveying system enables the material to move by a length S, the material with the length S contains the flaw, the material with the length S is cut by the cutting tool and then discharged through the material receiving discharge unit, and the material receiving discharge unit is changed to an initial state.

Preferably, the transition roll and the adjacent traction roll tension the material into a plane, and the detection unit is arranged above the plane.

Preferably, the material receiving and discharging unit comprises a material receiving plate and two groups of components, the material receiving plate and the two groups of components are obliquely arranged, the two groups of components are symmetrically arranged on two sides of the width direction of the material receiving plate respectively, and the two groups of components drive the material receiving plate to change between the initial state and the material receiving and discharging state; connect the flitch to be had the free end and be used for accepting the planar thin flat board piece of bending of material, connect the planar width of flitch to hold the material of being decided, when connect the flitch to be in connect the material discharge state, connect the free end of flitch to be located the below of the cutting edge of stationary knife, and connect the plane of flitch with the material is crossing at length direction's extension line.

Preferably, each group of the components comprises a material receiving sliding rod, a sliding block, a lever support and a driving cylinder, and the cylinder part of the cylinder is rotationally fixed on the rack; one end of the lever is rotatably connected with an output rod of the air cylinder, and the other end of the lever is rotatably connected with one end of the material receiving sliding rod; one end of the lever support is fixed on the rack, the other end of the lever support is provided with a rolling bearing, and the lever is arranged on the other end of the lever support through a waist groove arranged in the middle of the lever support and is not separated; the material receiving slide rod moves linearly along a slide block fixed on the rack and does not depart from the slide block, and the other end of the material receiving slide rod is fixedly connected with one side of the material receiving plate along the width direction.

Preferably, when the material receiving and discharging unit is in an initial state, the output rod of the cylinder is in a fully retracted state, and the free end of the material receiving plate is located below the movable cutter and does not prevent the movable cutter from performing reciprocating translation.

Another technical solution of the present invention is to provide a method for automatically discharging a defective product, which is characterized in that when the detection unit detects that there is a defect on the surface of the material, the method includes the following steps:

step 1: the material receiving and discharging unit is in an initial state, the material conveying system moves intermittently, a moving cutter of the cutting cutter performs reciprocating translation, N-M products are continuously cut, then the material conveying system stops material conveying, and the moving cutter is retracted to the farthest point of a fixed cutter far away from the cutting cutter;

step 2: the output rod of the cylinder of the material receiving and discharging unit extends out to drive the material receiving plate of the material receiving and discharging unit to move towards the direction of the cutting edge of the fixed cutter, so that the free end of the material receiving plate reaches the position below the cutting edge of the fixed cutter, and the plane of the material receiving plate is intersected with the extension line of the material in the length direction;

and step 3: starting the material conveying system to drive the material to move continuously, after the material is made to travel by a long distance S, stopping the material conveying system, retracting the output rod of the cylinder, and satisfying the length S at the moment: 1) s is more than or equal to A + (L- (N-M) xH), wherein A is more than H; 2) the plane of the material receiving plate is provided with a material;

and 4, step 4: the movable cutter of the cutting cutter is driven to cut the material, and the cut defective products slide along the plane of the material receiving plate and are discharged.

Due to the adoption of the technical scheme, compared with the prior art, the invention has the following advantages and positive effects: the labor intensity of workers is greatly reduced, and the qualification rate of products is better guaranteed. Provides a technical solution for the automation and intellectualization of the material cutting machine.

Drawings

FIG. 1 is a schematic longitudinal cross-sectional view of a structural component of the present invention;

FIG. 2 is a schematic structural form of a receiving plate according to the present invention;

fig. 3 is a schematic view of a material receiving and discharging unit according to the present invention in a material receiving state;

fig. 4 is a schematic view of the material receiving and discharging unit according to the present invention in a discharging state.

Detailed Description

The invention will be further illustrated with reference to the following specific examples. It should be understood that these examples are for illustrative purposes only and are not intended to limit the scope of the present invention. Further, it should be understood that various changes or modifications of the present invention may be made by those skilled in the art after reading the teaching of the present invention, and such equivalents may fall within the scope of the present invention as defined in the appended claims.

As shown in fig. 1, the automatic defective product discharging system provided by the present invention includes a material conveying system, a cutting tool, a detecting unit 3, a material receiving and discharging unit, and a frame 5 for mounting the above components. The material conveying system comprises traction rollers 11 and 11' with power-driven rotation and transition rollers 12, 12' and 12' capable of freely rotating, and the material conveying system can realize intermittent conveying or continuous conveying of the material 6 under the control of the control system. The material 6 is drawn and conveyed to the cutting tool in the direction of the arrow shown in fig. 1 through the path shown in fig. 1. Above the material 6 between the transition roller 12' and the traction roller 11, a detection unit 3 is arranged, and the detection unit 3 detects the flaw condition of the surface of the material in real time.

As shown in fig. 1, the cutting knife includes a stationary knife 21 fixed to the frame 1 and a movable knife 22 capable of reciprocating translation in the direction of the arrow shown in the drawing. The material 6 is conveyed into the space between the blade of the movable cutter 22 and the blade of the fixed cutter 21, the control system drives the movable cutter 22 to move towards the fixed cutter 21, and the two blades are meshed in a staggered mode to cut the material 6, so that the product 7 with the height H is produced.

For convenience of description, the position of the material 6 where the detecting unit 3 is provided is defined as point a, and the position where the material 6 is cut is defined as point B. The length L of the material 6 between point a and point B is greater than the product height H, and N is rounded (L/H).

As shown in fig. 1, the material receiving and discharging unit includes a material receiving plate 41 arranged obliquely and two sets of symmetrically arranged components, each set of components includes a material receiving slide rod 42, a slide block 43, a lever 44, a lever support 45 and a driving cylinder 46.

As shown in fig. 2, the material receiving plate 41 is a thin flat plate bending member, the free end 4101 of the material receiving plate 41 is a straight line, the width of the plane 4102 of the material receiving plate 41 can accommodate the width of the cut material, and two sides of the material receiving plate 41 in the width direction are respectively fixedly connected with the upper ends of the material receiving slide rods 42 in the two sets of components.

Referring to fig. 1 and 2, the cylinder portion of the cylinder 46 is rotatably fixed to the frame 1. The slide block 43 is fixed on the frame, and the material receiving slide rod 42 slides along the slide block 43 in the direction of the figure without separating. One end of the lever support 45 is fixed on the frame 1, and the other end is provided with a rolling bearing. The lever 44 is installed on the other end of the lever support 45 through a waist groove arranged in the middle without separation, one end of the lever 44 is rotatably connected with the output rod of the air cylinder 46, and the other end is rotatably connected with the lower end of the material receiving slide rod 42. When the air cylinder 46 is operated, the lever 44 rotates about the other end of the lever support 45 and slides along the middle waist groove of the lever 44.

As shown in fig. 1, the material receiving and discharging unit is in an initial state, at this time, the output rod of the air cylinder 46 is in a fully retracted state, and the free end 4101 of the material receiving plate 41 is located below the movable cutter 22 and does not prevent the movable cutter 22 from performing reciprocating translation. The material 6 is now cut normally.

When the detection unit 3 detects that the surface of the material 6 has a defect, the material conveying system, the movable cutter 22 and the material receiving and discharging unit perform corresponding actions to complete cutting and material receiving and discharging of defective products. With the system described above, when the detection unit 3 detects a defect on the surface of the material 6, a method for cutting and discharging defective products is implemented with the following steps:

step 1: the material receiving and discharging unit is in an initial state as shown in fig. 1, the material conveying system does intermittent motion, the movable cutter 22 does reciprocating translation, the cutting of N-M pieces of products 7 is continuously completed, M is a predetermined design constant, M is more than or equal to 1 and less than or equal to N, then the conveying of the materials 6 is stopped, and the movable cutter 22 is returned to a farthest point away from the fixed cutter 21;

step 2: as shown in fig. 3, the output rod of the cylinder 46 of the material receiving and discharging unit extends out to drive the material receiving plate 41 to move towards the edge of the fixed cutter 21, so that the free end 4101 of the material receiving plate 41 reaches the lower part of the edge of the fixed cutter 21, the plane 4102 of the material receiving plate 41 intersects with the extension line of the material 6 in the length direction, and the material receiving and discharging unit is changed to a material receiving and discharging state;

and step 3: starting the material conveying system to drive the material 6 to move continuously, stopping the material conveying system after the material 6 passes through the length S, retracting the output rod of the air cylinder 46, and as shown in FIG. 4, the length S at this moment satisfies: 1) s is more than or equal to A + (L- (N-M) xH), wherein A is more than H; 2) the plane 4102 of the material receiving plate 41 is provided with materials;

and 4, step 4: the movable cutter 22 is driven to cut the material 6, and the cut defective product is slid along the flat surface 4102 of the receiver plate 41 and discharged.