An image recognition spring automatic marking machine and its working method

Abstract

An image recognition spring automatic marking machine and its working method, which are composed of a spring density circle automatic sorting unit, a spring translation unit, a spring end face automatic positioning unit, a spring automatic marking unit, a spring drying unit and a spring conveying unit; the spring is input by the spring density circle automatic sorting unit, the pitch measurement camera determines the front and rear positions of the spring density circle, and the spring density circle flipping mechanism flips the springs that do not meet the requirements; the spring translation unit conveys the sorted springs to the spring end face automatic positioning unit; the end face cut measurement camera measures the end face cut position, and the spring push mechanism conveys the spring to the spring automatic marking unit for marking; the spring drying unit performs drying, and the spring conveying unit conveys the marked springs. The present invention solves the problems of slow manual marking, low efficiency, easy errors, and irregular marking, and reduces costs, improves efficiency, and improves quality.

Description

Technical Field

[0001] The invention relates to an automatic spring marking machine, in particular to an image recognition automatic spring marking machine and a working method thereof. Background Art

[0002] At present, for some special springs, such as valve springs, it is necessary to paint or ink the designated ends of the springs (the sparse ring end or the dense ring end) and the designated positions of the cuts. The existing spring painting or ink marking is done manually, which is inefficient, prone to errors, and has problems such as non-standard manual marking. Summary of the invention

[0003] The object of the present invention is to provide an image recognition spring automatic marking machine and a working method thereof, which can solve the deficiencies of the prior art, reduce costs, improve efficiency and improve quality.

[0004] The technical solution of the present invention is as follows: an image recognition spring automatic marking machine, characterized in that it is composed of a spring density circle automatic sorting unit, a spring translation unit, a spring end face automatic positioning unit, a spring automatic marking unit, a spring drying unit and a spring conveying unit; the spring is input by the spring density circle automatic sorting unit, and a pitch measuring camera of the spring density circle automatic sorting unit determines the front and rear positions of the spring density circle, and sends a signal of whether to flip the spring to the spring density circle flipping mechanism; a spring translation unit is arranged at the output end of the spring density circle automatic sorting unit, and the spring translation unit conveys the sorted spring to the spring end face automatic positioning unit; an end face incision measuring camera of the spring end face automatic positioning unit measures the end face incision position, the end face incision rotates to a specified position and stops rotating, and a spring pushing mechanism conveys the spring with the end face incision rotated to a specified position to the spring automatic marking unit for marking; a spring drying unit is arranged at the output end of the spring automatic marking unit; a spring conveying unit is arranged at the output end of the spring drying unit to convey the marked spring.

[0005] The spring density circle automatic sorting unit is composed of an automatic loading tray, a conveying track, a pitch measurement camera, and a spring density circle flipping mechanism; the springs to be marked are placed on the automatic loading tray, and its output port is connected to the conveying track; a pitch measurement station is set on the conveying track, and a pitch measurement camera is installed at the pitch measurement station, corresponding to the spring passing through the pitch measurement station; a spring density circle flipping mechanism corresponding to the spring position is installed on the output side of the pitch measurement station.

[0006] The spring density ring flipping mechanism includes a rotatable finger cylinder and a lifting cylinder The rotatable finger cylinder is installed on the lifting cylinder On: The lifting cylinder Descend, the rotatable finger cylinder clamps the spring that needs to be turned over, and then lifts the cylinder Lifting, rotatable finger cylinder completes rotation and U-turn in the air, lifting cylinder To descend, the rotatable finger cylinder is released to lower the spring.

[0007] The conveying track adopts a chain-type spring automatic conveying structure.

[0008] The spring translation unit includes a servo motor, a synchronous belt slide module, a finger cylinder and a lifting cylinder ; The finger cylinder is installed on the lifting cylinder Upper, lifting cylinder Installed on the synchronous belt slide module, the servo motor drives the synchronous belt slide module; the lifting cylinder Lowering, finger cylinder clamping spring, lifting cylinder Lifting, the synchronous belt slide module driven by the servo motor moves horizontally to the spring end surface automatic positioning unit, lifting cylinder Descend, the finger cylinder releases the spring and places the spring on the spring end surface automatic positioning unit.

[0009] The spring end face automatic positioning unit is composed of a stepper motor, an end face cut measurement camera, a rotating mechanism, and a spring pushing mechanism; the end face cut measurement camera is installed on the rotating mechanism and is aligned with the end face of the spring placed on the rotating mechanism; the stepper motor drives the rotating mechanism to rotate; the spring pushing mechanism corresponds to the spring placed on the rotating mechanism and transports the spring to the spring automatic identification unit.

[0010] The rotating mechanism adopts two rotating rollers, and the springs are placed on the two rotating rollers.

[0011] The spring pushing mechanism is composed of a pushing cylinder and a pushing plate installed on the pushing cylinder.

[0012] A pad printer is installed at the spring automatic marking unit to mark the spring with paint or ink.

[0013] The spring drying unit adopts an electric heating fan for drying.

[0014] The spring conveying unit adopts a conveyor belt.

[0015] A working method of the above-mentioned image recognition spring automatic marking machine is characterized in that it includes the following steps:

[0016] (1) The spring enters the spring density ring automatic sorting unit, the pitch measurement camera determines the front and rear positions of the spring density ring, and sends a signal to the spring density ring flipping mechanism to determine whether to flip the spring; the spring is discharged according to the direction setting requirements and queues at the translation station;

[0017] (2) When there is a spring at the translation station, the spring translation unit translates the spring from the translation station to the rotating mechanism of the spring end surface automatic positioning unit;

[0018] (3) The rotating mechanism of the spring end surface automatic positioning unit drives the spring to rotate, and the end surface cut measurement camera measures the spring end surface. When the spring end surface cut is found at the set position, a stop signal is issued, the rotating mechanism stops rotating, and the spring end surface cut points to the specified direction according to the set requirements;

[0019] (4) The spring pusher mechanism transports the spring with the end face cut rotated to the specified position to the spring automatic marking unit to complete the marking;

[0020] (5) After the marking is completed, the spring is transported to the spring drying unit. After the spring is dried, it enters the spring conveying unit to complete the automatic spring marking.

[0021] In the step (1), after the spring passes through the automatic loading tray of the spring density ring automatic sorting unit, the spring is automatically arranged in a row and enters the chain-type spring automatic conveying structure, and then automatically moves forward along the track. When the spring runs to the pitch measurement station, the pitch measurement camera will measure the spring pitch and give a signal that the sparse ring is in the front or the sparse ring is in the back. At the same time, the spring continues to automatically move forward to the spring density ring flipping mechanism. The spring density ring flipping mechanism clamps, lifts, flips, and puts down the springs that do not meet the spring direction according to the setting, and releases the springs that meet the requirements without any operation; all the springs with sparse rings in the front or all the springs with dense rings in the front are queued at the station.

[0022] The finger cylinder and lifting cylinder of the spring translation unit in step (2) To coordinate the actions of clamping, lifting and lowering the spring, the synchronous belt slide module drives the finger cylinder and lifting cylinder under the drive of the servo motor. The translation is completed, and finally the spring is translated from the translation station to the rotating mechanism of the spring end surface automatic positioning unit.

[0023] In step (3), the rotating mechanism is two rotating rollers, which rotate under the drive of the stepping motor, thereby driving the spring to rotate.

[0024] In the step (4), the push cylinder of the spring push mechanism drives the push plate installed on the push cylinder to push the unmarked springs to the spring automatic marking unit in sequence, and the pad printing machine is started to paint or ink the springs.

[0025] After the spring marking is completed in step (5), the marked springs will be pushed out to the spring drying unit for drying by the newly pushed unmarked springs, and then pushed to the conveyor belt of the spring transport unit.

[0026] The working principle of the present invention is as follows: 1. The spring density circle automatic sorting unit completes the automatic queuing and pitch identification of the springs, and the springs that do not meet the requirements are automatically flipped, thereby realizing the automatic sorting of the density circles of the springs according to the pitch requirements. After this structure, all the spring sparse circles can be in front, or all the spring dense circles can be in front. The front-end automatic loading tray automatically queues the springs, and the springs enter the chain-type automatic conveying structure track after queuing. After entering the track, the springs will automatically move forward along the track. When the spring runs to the pitch camera measurement station, the pitch camera automatically measures the spring pitch at high speed, and gives a signal of sparse circles in front or sparse circles in the back. At the same time, the spring continues to automatically move forward to the spring density circle flipping mechanism. The spring density circle flipping mechanism flips the springs that do not meet the spring direction according to the setting, and releases the springs that meet the customer's requirements without any operation; after the above process, all the spring sparse circles can be in front, or all the spring dense circles can be in front. 2. The spring translation unit transfers the sorted springs to the spring end face automatic positioning unit. 3. The spring end face automatic positioning unit completes the automatic positioning of the spring end face, so that the spring automatically rotates to the specified direction of the cut as required. The spring is placed on the rollers, and the two rollers rotate, thereby driving the spring to rotate. At the same time, the end face measurement camera will measure the spring end face at high speed until the end face cut is found at the set position, and then a stop signal is given, the stepper motor stops rotating, and the spring cut will point to the specified direction as required; then the push cylinder automatically pushes the spring to the spring automatic identification unit. 4. The spring automatic identification unit realizes the painting or ink marking of the spring. The spring is placed in the specified position of the marking station in a very standard manner. At this time, the pad printer automatically starts and points the mark at the specified position of the spring. After the mark is clicked, the spring is pushed to the spring drying unit. 5. In the spring drying unit, the spring is dried by an electric fan, and then falls onto the conveyor belt and is transported to the specified position.

[0027] The advantages of the present invention are: 1. The present invention solves the problems of slow manual marking, low efficiency, easy errors and irregular marking through automatic spring loading, automatic spring conveying, automatic image recognition, automatic sorting of sparse and dense circles, automatic positioning of end face cuts, automatic marking by pad printing machine and automatic spring drying. 2. The present invention solves practical problems for users, reduces costs, improves efficiency and improves quality. 3. The marking speed of the present invention is 35-40 lines per minute, while manual marking is only about 20 lines per minute; the marking accuracy of the present invention is above 99.99%; the present invention can work for a long time without stopping. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] Figure 1 The figure is a schematic diagram of the overall structure of an image recognition spring automatic marking machine involved in the present invention.

[0029] Figure 2The present invention is a schematic structural diagram of a spring density ring flipping mechanism in an image recognition spring automatic marking machine.

[0030] Figure 3 The present invention is a schematic structural diagram of a spring translation unit in an image recognition spring automatic marking machine.

[0031] Figure 4 The present invention is a schematic structural diagram of a spring end face automatic positioning unit in an image recognition spring automatic marking machine.

[0032] Figure 5 The present invention is a schematic diagram of a spring automatic identification unit, a spring drying unit and a spring conveying unit in an image recognition spring automatic identification machine.

[0033] Among them, 1 is the automatic loading tray, 2 is the chain spring automatic conveying structure, 3 is the pitch measurement station, 4 is the pitch measurement camera, 5 is the spring density ring flipping mechanism, 5-1 is the rotatable finger cylinder, and 5-2 is the lifting cylinder , 6 is a spring translation unit, 7 is a servo motor, 8 is a translation station, 9 is a spring end face automatic positioning unit, 10 is a stepper motor, 11 is an end face cut measurement camera, 12 is a marking station, 13 is a pad printer, 14 is a spring drying unit, 15 is a spring push mechanism, 15-1 is a push cylinder, 15-2 is a push plate, 16 is a synchronous belt slide module, 17 is a finger cylinder, 18 is a lifting cylinder , 19 is a drying station, 20 is a spring conveying unit, and 21 is a paint and ink dotting rubber head. DETAILED DESCRIPTION

[0034] Example: Figures 1 to 5 As shown, an image recognition spring automatic marking machine is characterized in that it is composed of a spring density circle automatic sorting unit, a spring translation unit 6, a spring end surface automatic positioning unit, a spring automatic marking unit, a spring drying unit 14 and a spring conveying unit 20; the spring is input by the spring density circle automatic sorting unit, and the pitch measurement camera 4 of the spring density circle automatic sorting unit determines the front and rear positions of the spring density circle, and sends a signal of whether to flip the spring to the spring density circle flipping mechanism 5; the output end of the spring density circle automatic sorting unit is provided with a spring translation unit 6, and the spring translation unit 6 conveys the sorted spring to the spring end surface automatic positioning unit; the end surface incision measurement camera 11 of the spring end surface automatic positioning unit measures the end surface incision position, the end surface incision rotates to the specified position and stops rotating, and the spring pushing mechanism 15 conveys the spring with the end surface incision rotated to the specified position to the spring automatic marking unit for marking; the spring drying unit 14 is provided at the output end of the spring automatic marking unit; the spring conveying unit 20 is provided at the output end of the spring drying unit 14 to convey the marked spring.

[0035] The spring density circle automatic sorting unit is composed of an automatic loading tray 1, a conveying track, a pitch measuring camera 4, and a spring density circle flipping mechanism 5; the springs to be marked are placed on the automatic loading tray 1, and its output port is connected to the conveying track; a pitch measuring station 3 is set on the conveying track, and the pitch measuring camera 4 is installed at the pitch measuring station 3, corresponding to the spring passing through the pitch measuring station 3; the spring density circle flipping mechanism 5 corresponding to the spring position is installed on the output side of the pitch measuring station 3.

[0036] The spring density ring turning mechanism 5 (see Figure 2 ) includes a rotatable finger cylinder 5-1 and a lifting cylinder 5-2; the rotatable finger cylinder 5-1 is installed on the lifting cylinder 5-2 above; the lifting cylinder 5-2 descends, the rotatable finger cylinder 5-1 clamps the spring that needs to be turned over, and then lifts the cylinder 5-2 lifting, rotating finger cylinder 5-1 completes the rotation and U-turn in the air, lifting cylinder 5-2 descends, and the rotatable finger cylinder 5-1 is released to lower the spring.

[0037] The conveying track adopts a chain-type spring automatic conveying structure 2.

[0038] The spring translation unit 6 (see Figure 3 ) includes a servo motor 7, a synchronous belt slide module 16, a finger cylinder 17 and a lifting cylinder 18; The finger cylinder 17 is installed on the lifting cylinder 18 Up, lifting cylinder 18 is installed on the synchronous belt slide module 16, and the servo motor 7 drives the synchronous belt slide module 16; the lifting cylinder 18 descending, finger cylinder 17 clamping spring, lifting cylinder 18 lifts, the synchronous belt slide module 16 driven by the servo motor 7 moves horizontally to the spring end surface automatic positioning unit, and the lifting cylinder 18 descends, and the finger cylinder 17 releases the spring and puts the spring into the spring end surface automatic positioning unit.

[0039] The spring end automatic positioning unit (see Figure 4 ) is composed of a stepper motor 10, an end face cut measurement camera 11, a rotating mechanism 9, and a spring pushing mechanism 15; the end face cut measurement camera 11 is installed on the rotating mechanism 9 and is aligned with the end face of the spring placed on the rotating mechanism 9; the stepper motor 10 drives the rotating mechanism 11 to rotate; the spring pushing mechanism 15 corresponds to the spring placed on the rotating mechanism 9 and transports the spring to the spring automatic identification unit.

[0040] The rotating mechanism 9 adopts two rotating rollers, and the springs are placed on the two rotating rollers.

[0041] The spring pushing mechanism 15 is composed of a pushing cylinder 15 - 1 and a pushing plate 15 - 2 installed on the pushing cylinder 15 - 1 .

[0042] The spring automatic marking unit 12 is provided with a pad printer 13 , and a paint and ink dotting head 21 of the pad printer 13 is used to paint or ink the spring for marking.

[0043] The spring drying unit 14 uses an electric fan for drying.

[0044] The spring transport unit 20 adopts a conveyor belt.

[0045] A working method of the above-mentioned image recognition spring automatic marking machine is characterized in that it includes the following steps:

[0046] (1) The spring enters the spring density ring automatic sorting unit, the pitch measurement camera 4 determines the front and rear positions of the spring density ring, and sends a signal of whether to flip the spring to the spring density ring flipping mechanism 5; the spring is discharged according to the direction setting requirements and queues at the translation station 8;

[0047] (2) When there is a spring at the translation station 8, the spring translation unit 6 translates the spring from the translation station 8 to the rotating mechanism 9 of the spring end surface automatic positioning unit;

[0048] (3) The rotating mechanism 9 of the spring end surface automatic positioning unit drives the spring to rotate, and at the same time, the end surface cut measurement camera 11 measures the spring end surface. When the spring end surface cut is found at the set position, a stop signal is issued, the rotating mechanism 9 stops rotating, and the spring end surface cut points to the specified direction according to the set requirements;

[0049] (4) The spring pusher mechanism 15 transports the spring whose end face cut is rotated to the specified position to the spring automatic marking unit to complete the marking;

[0050] (5) After the marking is completed, the spring is transported to the drying station 19 of the spring drying unit 14. After the spring is dried, it enters the spring conveying unit 20 to complete the automatic marking of the spring.

[0051] In the step (1), after the spring passes through the automatic loading tray 1 of the spring density circle automatic sorting unit, the spring is automatically arranged in a row and enters the chain-type spring automatic conveying structure 2, and then automatically moves forward along the track. When the spring runs to the pitch measurement station 3, the pitch measurement camera 4 will measure the spring pitch and give a signal that the sparse circle is in the front or the sparse circle is in the back. At the same time, the spring continues to automatically move forward to the spring density circle flipping mechanism 5. The spring density circle flipping mechanism 5 clamps, lifts, flips, and puts down the springs that do not meet the spring direction according to the setting, and releases the springs that meet the requirements without any operation; all the springs with sparse circles in the front or all the springs with dense circles in the front are queued at the station 8.

[0052] The finger cylinder 17 and the lifting cylinder of the spring translation unit 6 in step (2) 18 cooperates with the action of clamping, lifting and lowering the spring, and the synchronous belt slide module drives the finger cylinder 17 and the lifting cylinder under the drive of the servo motor 7 18 completes the translation, and finally translates the spring from the translation station 8 to the rotating mechanism 9 of the spring end surface automatic positioning unit.

[0053] In step (3), the rotating mechanism 9 is two rotating rollers, which rotate under the drive of the stepping motor 10, thereby driving the spring to rotate.

[0054] In the step (4), the push cylinder 15-1 of the spring push mechanism 15 drives the push plate 15-2 installed on the push cylinder 15-1 to push the unmarked springs to the marking station 12 in sequence, the pad printer 13 is started, and the paint and ink dotting head 21 paints or inks the springs for marking.

[0055] After the spring marking is completed in step (5), the marked spring will be pushed out to the drying station 19 of the spring drying unit 14 for drying by the newly pushed unmarked spring, and then pushed to the conveyor belt of the spring conveying unit 20.

Claims

1. An image recognition spring automatic marking machine, Features It consists of a spring density circle automatic sorting unit, a spring translation unit, a spring end face automatic positioning unit, a spring automatic identification unit, a spring drying unit and a spring conveying unit; the spring is input by the spring density circle automatic sorting unit, and the pitch measuring camera of the spring density circle automatic sorting unit determines the front and rear positions of the spring density circle, and sends a signal of whether to flip the spring to the spring density circle flipping mechanism; the output end of the spring density circle automatic sorting unit is provided with a spring translation unit, and the spring translation unit conveys the sorted spring to the spring end face automatic positioning unit; the end face incision measuring camera of the spring end face automatic positioning unit measures the end face incision position, the end face incision rotates to the specified position and stops rotating, and the spring pushing mechanism conveys the spring with the end face incision rotated to the specified position to the spring automatic identification unit for marking; the output end of the spring automatic identification unit is provided with a spring drying unit; the output end of the spring drying unit is provided with a spring conveying unit to convey the marked spring; The spring density circle automatic sorting unit is composed of an automatic loading tray, a conveying track, a pitch measurement camera, and a spring density circle flipping mechanism; the springs to be marked are placed on the automatic loading tray, and its output port is connected to the conveying track; a pitch measurement station is set on the conveying track, and a pitch measurement camera is installed at the pitch measurement station, corresponding to the spring passing through the pitch measurement station; a spring density circle flipping mechanism corresponding to the spring position is installed on the output side of the pitch measurement station; The spring density ring flipping mechanism includes a rotatable finger cylinder and a lifting cylinder I; the rotatable finger cylinder is installed on the lifting cylinder I; the lifting cylinder I descends, the rotatable finger cylinder clamps the spring to be flipped, and then the lifting cylinder I is lifted, the rotatable finger cylinder completes a rotation and U-turn in the air, the lifting cylinder I descends, the rotatable finger cylinder is released, and the spring is put down; The spring translation unit includes a servo motor, a synchronous belt slide module, a finger cylinder and a lifting cylinder II; the finger cylinder is installed on the lifting cylinder II, the lifting cylinder II is installed on the synchronous belt slide module, and the servo motor drives the synchronous belt slide module; the lifting cylinder II descends, the finger cylinder clamps the spring, the lifting cylinder II is lifted, the synchronous belt slide module driven by the servo motor is translated to the spring end surface automatic positioning unit, the lifting cylinder II descends, the finger cylinder releases the spring, and the spring is placed in the spring end surface automatic positioning unit; The spring end face automatic positioning unit is composed of a stepper motor, an end face cut measurement camera, a rotating mechanism, and a spring pushing mechanism; the end face cut measurement camera is installed on the rotating mechanism and is aligned with the end face of the spring placed on the rotating mechanism; the stepper motor drives the rotating mechanism to rotate; the spring pushing mechanism corresponds to the spring placed on the rotating mechanism and transports the spring to the spring automatic identification unit.

2. According to claim 1, an image recognition spring automatic marking machine, Features The conveying track adopts a chain-type spring automatic conveying structure.

3. According to claim 1, an image recognition spring automatic marking machine, Features The rotating mechanism adopts two rotating rollers, and the springs are placed on the two rotating rollers; the spring pushing mechanism is composed of a pushing cylinder and a pushing plate installed on the pushing cylinder.

4. According to claim 1, an image recognition spring automatic marking machine, Features A pad printer is installed at the spring automatic marking unit to paint or ink the springs; the spring drying unit uses an electric fan for drying; and the spring transport unit uses a conveyor belt.

5. A working method of the image recognition spring automatic marking machine according to claim 1, Features It includes the following steps: (1) The spring enters the spring density ring automatic sorting unit, the pitch measurement camera determines the front and rear positions of the spring density ring, and sends a signal to the spring density ring flipping mechanism to determine whether to flip the spring; the spring is discharged according to the direction setting requirements and queues at the translation station; (2) When there is a spring at the translation station, the spring translation unit translates the spring from the translation station to the rotating mechanism of the spring end surface automatic positioning unit; (3) The rotating mechanism of the spring end surface automatic positioning unit drives the spring to rotate, and the end surface cut measurement camera measures the spring end surface. When the spring end surface cut is found at the set position, a stop signal is issued, the rotating mechanism stops rotating, and the spring end surface cut points to the specified direction according to the set requirements; (4) The spring pusher mechanism transports the spring with the end face cut rotated to the specified position to the spring automatic marking unit to complete the marking; (5) After the marking is completed, the spring is transported to the spring drying unit, and after the spring is dried, it enters the spring conveying unit to complete the automatic spring marking.

6. The working method of the image recognition spring automatic marking machine according to claim 5, Features In the step (1), after the spring passes through the automatic loading tray of the spring density circle automatic sorting unit, the spring is automatically arranged in a row and enters the chain-type spring automatic conveying structure, and then automatically moves forward along the track. When the spring runs to the pitch measurement station, the pitch measurement camera will measure the spring pitch and give a signal that the sparse circle is in the front or the sparse circle is in the back. At the same time, the spring continues to automatically move forward to the spring density circle flipping mechanism. The spring density circle flipping mechanism clamps, lifts, flips, and puts down the springs that do not meet the spring direction according to the setting, and releases the springs that meet the requirements without any operation; all the springs with sparse circles in the front or all the springs with dense circles in the front are queued at the station; In the step (2), the finger cylinder and the lifting cylinder II of the spring translation unit cooperate to clamp, lift and put down the spring, and the synchronous belt slide module drives the finger cylinder and the lifting cylinder II to complete the translation under the drive of the servo motor, and finally translates the spring from the translation station to the rotating mechanism of the spring end surface automatic positioning unit; In step (3), the rotating mechanism is two rotating rollers, which rotate under the drive of the stepping motor, thereby driving the spring to rotate; In the step (4), the push cylinder of the spring push mechanism drives the push plate installed on the push cylinder to push the unmarked springs to the spring automatic marking unit in sequence, and the pad printing machine is started to paint or ink the springs; After the spring marking is completed in step (5), the marked springs will be pushed out to the spring drying unit for drying by the newly pushed unmarked springs, and then pushed to the conveyor belt of the spring transport unit.

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