Automatic putty filling equipment

Abstract

The utility model discloses automatic putty filling equipment which comprises a turntable controlled to rotate, a feeding conveying belt, a filling mechanism, a can sealing mechanism, a discharging conveying belt and a PLC (Programmable Logic Controller), four clamping mechanisms for clamping a tank body are uniformly arranged on the upper surface of the turntable in the circumferential direction; the feeding conveying belt, the filling mechanism, the can sealing mechanism and the discharging conveying belt are sequentially arranged in the anticlockwise direction of the periphery of the rotary disc and located on one side of each clamping mechanism. A feeding grabbing mechanical arm is arranged on one side of the discharging end of the feeding conveying belt, and a discharging grabbing mechanical arm is arranged on one side of the feeding end of the discharging conveying belt. The output end of the PLC is connected with the controlled ends of the rotating disc, the feeding conveying belt, the feeding grabbing mechanical arm, the clamping mechanism, the filling mechanism, the can sealing mechanism, the discharging grabbing mechanical arm and the discharging conveying belt. According to the automatic filling and can sealing device for the putty, automatic filling and can sealing of the putty are achieved, quantitative filling and continuous filling and can sealing can also be guaranteed, and therefore the filling and can sealing efficiency of the putty is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to filling equipment technical field, concretely relates to a putty automatic filling equipment. BACKGROUND

[0002] Putty is a kind of filling material commonly used in automobile manufacturing and maintenance, has fast drying speed, strong adhesion and other characteristics.The traditional putty filling is mostly adopted manually or semi-automatically, and there are many deficiencies.Manual filling is inefficient, and due to the instability of manual operation, it is difficult to guarantee the accuracy of filling quantity, and it is easy to appear filling quantity too much or too little, leading to uneven product quality.At the same time, putty has certain volatility and irritating odor, and long-term manual contact can cause harm to human health.

[0003] Some existing putty automatic filling equipment realizes automation to some extent, but does not have the function of sealing tank body after filling, and manual sealing of filling barrel is needed, which reduces the practicability of equipment in use. UTILITY MODEL CONTENTS

[0004] The utility model needs to solve the technical problem to provide a kind of putty automatic filling equipment to solve the problem raised in background art.

[0005] To solve the above technical problems, the technical scheme adopted by the utility model is as follows.

[0006] A kind of putty automatic filling equipment, including controlled rotation's turntable, for the empty tank body of the upper feeding conveyor belt of being transported to turntable, for filling putty in empty tank body the filling mechanism, for the tank body of being sealed after filling putty the sealing mechanism, for the tank body of being transported to the lower feeding conveyor belt after filling and sealing, and PLC controller;The upper surface of the turntable is evenly provided with four clamping mechanisms for clamping tank body along the circumference;The upper feeding conveyor belt, filling mechanism, sealing mechanism and lower feeding conveyor belt are sequentially arranged along the anticlockwise direction of the periphery of turntable and respectively located at the side of each clamping mechanism;The discharge end side of the upper feeding conveyor belt is provided with the upper feeding grabbing manipulator for taking empty tank body on the upper feeding conveyor belt and placing in the clamping mechanism located at the discharge end side of the upper feeding conveyor belt, and the inlet end side of the lower feeding conveyor belt is provided with the lower feeding grabbing manipulator for taking the tank body filled and sealed in the clamping mechanism located at the inlet end side of the lower feeding conveyor belt and placing on the lower feeding conveyor belt;The output end of the PLC controller is connected with the controlled end of turntable, upper feeding conveyor belt, upper feeding grabbing manipulator, clamping mechanism, filling mechanism, sealing mechanism, lower feeding grabbing manipulator and lower feeding conveyor belt respectively.

[0007] Preferably, the clamping mechanism comprises a fixed ring and a movable ring arranged oppositely and matched with the outer wall of the tank body; the fixed ring is fixedly arranged on the upper surface of the turntable; the bottom of the movable ring is provided with a sliding seat, the upper surface of the turntable is provided with a sliding groove which is slidably assembled with the sliding seat, the side wall of the movable ring away from the fixed ring is connected with a clamping driving telescopic cylinder arranged on the upper surface of the turntable and used for driving the movable ring to slide along the sliding groove to realize the approach and departure of the movable ring to the fixed ring to clamp and release the tank body, and the controlled end of the clamping driving telescopic cylinder is connected with the output end of the PLC controller.

[0008] Preferably, the filling mechanism comprises a filling base, a weighing scale arranged on the filling base, a material container arranged on the weighing scale and used for containing the atomized cement, and a stirring assembly arranged on the material container and used for stirring the atomized cement in the material container; the inner wall of the material container is provided with a feeding pipe, the bottom of the feeding pipe is provided with a bevel and extends into the inner bottom wall of the material container, the top of the feeding pipe extends out of the top of the material container and is connected with a pump arranged on the material container and used for pumping the atomized cement in the material container, the discharge port of the pump is connected with a discharge pipe arranged on one side above the turntable and used for dropping the atomized cement pumped by the pump into the tank body in the clamping mechanism, and the discharge pipe and the feeding conveyor belt are arranged at 90° along the rotation center of the turntable; the input end of the PLC controller is connected with the output end of the weighing scale, and the output end of the PLC controller is respectively connected with the controlled ends of the stirring assembly and the pump.

[0009] Preferably, the stirring assembly comprises a stirring motor arranged on the top of the material container, the controlled end of the stirring motor is connected with the output end of the PLC controller, the rotating shaft of the stirring motor is arranged downward and connected with a stirring shaft arranged longitudinally in the material container, and the shaft wall of the stirring shaft is provided with a plurality of stirring blades.

[0010] Preferably, the sealing mechanism comprises a sealing base, a cover cylinder arranged vertically upward on the sealing base and used for stacking the cover, and a rotating shaft arranged on one side of the cover cylinder; the bottom of the rotating shaft is rotationally connected with the sealing base and connected with a rotating driving assembly used for driving the rotating shaft to rotate, the side of the rotating shaft close to the turntable is provided with a lower mounting plate arranged above the turntable and an upper mounting plate arranged above the lower mounting plate;

[0011] The lower mounting plate is provided with a material taking telescopic cylinder, the telescopic rod of the material taking telescopic cylinder is arranged downward and connected with a material taking suction cup used for sucking the cover located at the top of the cover cylinder, and the material taking suction cup is located above the clamping mechanism and arranged at 90° along the rotation center of the turntable with the discharge pipe and the discharging conveyor belt respectively;

[0012] The upper mounting plate is provided with a downward pressing telescopic cylinder, the telescopic rod of the downward pressing telescopic cylinder is arranged downward and is connected with a horizontally arranged mounting base, the lower surface of the mounting base is oppositely provided with a downward pressing rod which penetrates through the lower mounting plate from the bottom and is located outside the material taking suction cup, and the bottom end of the downward pressing rod is provided with a pressing head for pressing the tank cover under the driving of the downward pressing telescopic cylinder.

[0013] The output end of the PLC controller is connected with the controlled end of the rotary driving assembly, the material taking telescopic cylinder, the material taking suction cup and the downward pressing telescopic cylinder respectively.

[0014] Preferably, the rotary driving assembly comprises a rotary motor arranged on the tank sealing base, the controlled end of the rotary motor is connected with the output end of the PLC controller, the rotating shaft of the rotary motor is arranged upward and is connected with a horizontally arranged gear, and the bottom of the rotating shaft is provided with a gear ring engaged with the gear.

[0015] Preferably, the side of the discharging end of the feeding conveying belt is provided with a sensor for monitoring whether the tank body is conveyed to the position, and the output end of the sensor is connected with the input end of the PLC controller.

[0016] Thanks to the above technical scheme, the technical progress achieved by the utility model is as follows.

[0017] The utility model discloses a rotary table, clamping mechanism, feeding conveying belt, feeding grabbing manipulator, filling mechanism, tank sealing mechanism, discharging grabbing manipulator and discharging conveying belt are arranged, not only realize the automatic filling and tank sealing of atomized cement, but also can guarantee quantitative filling and continuous filling and tank sealing, thereby greatly improve the efficiency of atomized cement filling and tank sealing. BRIEF DESCRIPTION OF DRAWINGS

[0018] Figure 1 It is the structural schematic diagram of the utility model;

[0019] Figure 2 It is the filling mechanism structural schematic diagram of the utility model;

[0020] Figure 3 It is the tank sealing mechanism structural schematic diagram of the utility model.

[0021] Wherein: 1. rotating disc, 2. clamping mechanism, 21. fixed ring, 22. movable ring, 23. sliding seat, 24. sliding groove, 25. clamping drive telescopic cylinder, 3. feeding conveyor belt, 4. feeding grabbing manipulator, 5. filling mechanism, 51. filling base, 52. weighing scale, 53. material containing cylinder, 54. stirring motor, 55. stirring shaft, 56. stirring blade, 57. feeding pipe, 58. pump, 59. discharging pipe, 6. can sealing mechanism, 61. can sealing base, 62. can cover cylinder, 63. rotating shaft, 64. lower mounting plate, 65. material taking telescopic cylinder, 66. material taking suction cup, 67. upper mounting plate, 68. pressing telescopic cylinder, 69. mounting seat, 610. pressing rod, 611. pressing head, 612. gear, 613. gear ring, 7. discharging conveyor belt, 8. discharging grabbing manipulator. DETAILED DESCRIPTION

[0022] The utility model will be further explained in detail in combination with the drawings and specific embodiments.

[0023] An automatic putty filling equipment, in combination with Figure 1 As shown in the figure, it comprises a rotating disc 1, a feeding conveyor belt 3, a filling mechanism 5, a can sealing mechanism 6 and a discharging conveyor belt 7, wherein the rotating disc 1 is controlled to rotate through a connected stepping motor, the upper surface of the rotating disc 1 is uniformly provided with four clamping mechanisms 2 along the circumference, and the clamping mechanisms 2 are used for clamping can bodies; the feeding conveyor belt 3, the filling mechanism 5, the can sealing mechanism 6 and the discharging conveyor belt 7 are sequentially arranged along the circumference of the rotating disc 1 in the counterclockwise direction and are respectively located on one side of each clamping mechanism 2, the feeding conveyor belt 3 is used for conveying empty can bodies to the rotating disc 1, the filling mechanism 5 is used for filling putty into the empty can bodies, the can sealing mechanism 6 is used for sealing the can bodies filled with putty, and the discharging conveyor belt 7 is used for conveying the can bodies filled and sealed to the outside. At the same time, the feeding conveyor belt 3 is provided with a feeding grabbing manipulator 4 on one side of the discharging end, the feeding grabbing manipulator 4 is used for taking the empty can bodies on the feeding conveyor belt 3 and placing them into the clamping mechanism 2 located on one side of the discharging end of the feeding conveyor belt 3; the discharging conveyor belt 7 is provided with a discharging grabbing manipulator 8 on one side of the feeding end, and the discharging grabbing manipulator 8 is used for taking the can bodies filled and sealed in the clamping mechanism 2 located on one side of the feeding end of the discharging conveyor belt 7 and placing them on the discharging conveyor belt 7.

[0024] A sensor is arranged on the side of the discharging end of the feeding conveyor belt 3, and the sensor is used for monitoring whether the can bodies are conveyed in place.

[0025] The clamping mechanism 2 comprises a fixed ring 21 and a movable ring 22 which are oppositely arranged and adapted to the outer wall of the tank body, wherein the fixed ring 21 is fixedly arranged on the upper surface of the turntable 1; the bottom of the movable ring 22 is provided with a sliding seat 23, the upper surface of the turntable 1 is provided with a sliding groove 24, the sliding seat 23 and the sliding groove 24 are slidingly assembled, the side wall of the movable ring 22 away from the fixed ring 21 is connected with a clamping driving telescopic cylinder 25, the clamping driving telescopic cylinder 25 is arranged on the upper surface of the turntable 1, the clamping driving telescopic cylinder 25 is used to drive the movable ring 22 to slide along the sliding groove 24, so as to realize the movable ring 22 to approach and move away from the fixed ring 21, and then clamp and release the tank body.

[0026] As shown in Figure 2 , the filling mechanism 5 comprises a filling base 51, the filling base 51 is provided with a weighing scale 52, the weighing scale 52 is provided with a material containing cylinder 53, the material containing cylinder 53 is used to contain the putty, and the weighing scale 52 is used to weigh the weight of the putty in the material containing cylinder 53.

[0027] The material containing cylinder 53 is provided with a stirring assembly, the stirring assembly is used to stir the putty in the material containing cylinder 53, so as to avoid the putty in the material containing cylinder 53 from scabbing. Specifically, the stirring assembly comprises a stirring motor 54, the stirring motor 54 is arranged at the top of the material containing cylinder 53, the rotating shaft of the stirring motor 54 is arranged downward and connected with a stirring shaft 55, the stirring shaft 55 is longitudinally arranged in the material containing cylinder 53, and a plurality of stirring blades 56 are arranged on the shaft wall of the stirring shaft 55. In use, the stirring motor 54 drives the stirring shaft 55 to rotate, so as to drive the stirring blades 56 to rotate and stir the putty.

[0028] The inner wall of the material containing cylinder 53 is provided with a feeding pipe 57, the bottom of the feeding pipe 57 is provided with an inclined opening and extends into the inner bottom wall of the material containing cylinder 53, so as to facilitate feeding; the top of the feeding pipe 57 penetrates out of the top of the material containing cylinder 53 and is connected with a pump 58, the pump 58 is arranged on the material containing cylinder 53, the pump 58 is used to pump out the putty in the material containing cylinder 53, the discharge port of the pump 58 is connected with a discharge pipe 59, the discharge pipe 59 is arranged on one side above the turntable 1, and the discharge pipe 59 and the upper feeding conveyor belt 3 are arranged at 90° along the rotation center of the turntable 1, the discharge pipe 59 is used to drop the putty pumped out by the pump 58 into the tank body in the clamping mechanism 2, so as to realize filling the putty into the tank body, and the weight data monitored by the weighing scale 52 is used to control the weight of the putty pumped out, so as to realize quantitative filling.

[0029] As shown in Figure 3 , the sealing mechanism 6 comprises a sealing base 61, the sealing base 61 is vertically provided with a tank cover cylinder 62 and a rotating shaft 63, wherein the tank cover cylinder 62 is used to stack the tank covers; the rotating shaft 63 is located on one side of the tank cover cylinder 62.

[0030] The bottom of the rotating shaft 63 is rotationally connected with the can sealing base 61 and is connected with a rotating driving assembly, which is used to drive the rotating shaft 63 to rotate. Specifically, the rotating driving assembly comprises a rotating motor arranged on the can sealing base 61, and a horizontal gear 612 connected with the rotating shaft of the rotating motor and arranged upwardly; the bottom of the rotating shaft 63 is provided with a gear ring 613 which is engaged with the gear 612. In use, the rotating motor drives the gear 612 to rotate, the gear 612 drives the gear ring 613 to rotate, and the gear ring 613 drives the rotating shaft 63 to rotate.

[0031] The rotating shaft 63 is provided with a lower mounting plate 64 and an upper mounting plate 67 on the side close to the rotating disc 1, the lower mounting plate 64 is located above the rotating disc 1, and the upper mounting plate 67 is located above the lower mounting plate 64.

[0032] The lower mounting plate 64 is provided with a taking cylinder 65, and the extension rod of the taking cylinder 65 is arranged downwardly and connected with a taking suction disc 66, when the taking suction disc 66 is located directly above the clamping mechanism 2, the taking suction disc 66 is respectively 90° with the discharging pipe 59 and the discharging conveying belt 7 along the rotating center of the rotating disc 1, and the taking suction disc 66 is used to suck the can cover located at the top of the can cover cylinder 62.

[0033] The upper mounting plate 67 is provided with a pressing cylinder 68, the extension rod of the pressing cylinder 68 is arranged downwardly and connected with a horizontally arranged mounting seat 69, the lower surface of the mounting seat 69 is oppositely provided with a pressing rod 610, the bottom of the pressing rod 610 penetrates through the lower mounting plate 64 and is located outside the taking suction disc 66, and the bottom end of the pressing rod 610 is provided with a pressing head 611, which is used to press the can cover under the driving of the pressing cylinder 68, so as to make the can cover be buckled on the can body and realize the sealing of the can body.

[0034] The device further comprises a PLC controller, which is connected with the rotating disc 1, the feeding conveying belt 3, the feeding grabbing manipulator 4, the clamping mechanism 2, the filling mechanism 5, the can sealing mechanism 6, the discharging grabbing manipulator 8 and the discharging conveying belt 7, specifically, the input end of the PLC controller is connected with the output end of the sensor and the weighing scale 52 respectively; the output end of the PLC controller is connected with the controlled end of the step motor of the rotating disc 1, the feeding conveying belt 3, the feeding grabbing manipulator 4, the clamping driving cylinder 25, the stirring motor 54, the pump 58, the rotating motor, the taking cylinder 65, the taking suction disc 66, the pressing cylinder 68, the discharging grabbing manipulator 8 and the discharging conveying belt 7, so as to realize the automatic control of the working of the device.

[0035] The utility model discloses a kind of automatic atomized cement filling and sealing devices, including rotating disc 1, clamping mechanism 2, feeding conveyor belt 3, feeding grabbing manipulator 4, filling mechanism 5, sealing mechanism 6, unloading grabbing manipulator 8 and unloading conveyor belt 7, it is characterized by that: rotating disc 1 is arranged in the middle of feeding conveyor belt 3, and clamping mechanism 2 is arranged in the side of feeding conveyor belt 3, and feeding conveyor belt 3 is arranged in the side of unloading conveyor belt 7, and feeding grabbing manipulator 4 is arranged in the side of clamping mechanism 2, and filling mechanism 5 is arranged in the side of rotating disc 1, and sealing mechanism 6 is arranged in the side of rotating disc 1, and unloading grabbing manipulator 8 is arranged in the side of clamping mechanism 2.

[0036] The utility model discloses a kind of automatic atomized cement filling and sealing devices, including rotating disc 1, clamping mechanism 2, feeding conveyor belt 3, feeding grabbing manipulator 4, filling mechanism 5, sealing mechanism 6, unloading grabbing manipulator 8 and unloading conveyor belt 7, it is characterized by that: rotating disc 1 is arranged in the middle of feeding conveyor belt 3, and clamping mechanism 2 is arranged in the side of feeding conveyor belt 3, and feeding conveyor belt 3 is arranged in the side of unloading conveyor belt 7, and feeding grabbing manipulator 4 is arranged in the side of clamping mechanism 2, and filling mechanism 5 is arranged in the side of rotating disc 1, and sealing mechanism 6 is arranged in the side of rotating disc 1, and unloading grabbing manipulator 8 is arranged in the side of clamping mechanism 2.

Claims

1. An automatic putty filling device, characterized by: The application relates to a controlled-rotation rotary disc (1), an upper conveying belt (3) for conveying empty can bodies to the rotary disc (1), a filling mechanism (5) for filling the empty can bodies with putty, a can sealing mechanism (6) for sealing the can bodies filled with putty, a lower conveying belt (7) for conveying the sealed can bodies filled with putty outward, and a PLC controller; four clamping mechanisms (2) for clamping the can bodies are uniformly arranged on the upper surface of the rotary disc (1) in the circumferential direction; the upper conveying belt (3), the filling mechanism (5), the can sealing mechanism (6) and the lower conveying belt (7) are sequentially arranged in the counterclockwise direction around the rotary disc (1) and are respectively located on one side of each clamping mechanism (2); an upper grabbing manipulator (4) is arranged on one side of the discharge end of the upper conveying belt (3) and is used for taking the empty can bodies on the upper conveying belt (3) and placing the empty can bodies into the clamping mechanism (2) on one side of the discharge end of the upper conveying belt (3); a lower grabbing manipulator (8) is arranged on one side of the feeding end of the lower conveying belt (7) and is used for taking the sealed can bodies filled with putty in the clamping mechanism (2) on one side of the feeding end of the lower conveying belt (7) and placing the sealed can bodies on the lower conveying belt (7); and the output end of the PLC controller is connected with the controlled ends of the rotary disc (1), the upper conveying belt (3), the upper grabbing manipulator (4), the clamping mechanism (2), the filling mechanism (5), the can sealing mechanism (6), the lower grabbing manipulator (8) and the lower conveying belt (7).

2. The automatic putty filling device according to claim 1, characterized in that: The clamping mechanism (2) comprises a fixed ring (21) and a movable ring (22) which are oppositely arranged and are matched with the outer sidewall of the can body; the fixed ring (21) is fixedly arranged on the upper surface of the rotary disc (1); the bottom of the movable ring (22) is provided with a sliding seat (23), the upper surface of the rotary disc (1) is provided with a sliding groove (24) which is slidingly assembled with the sliding seat (23), the sidewall of the movable ring (22) away from the fixed ring (21) is connected with a clamping driving telescopic cylinder (25) arranged on the upper surface of the rotary disc (1) and used for driving the movable ring (22) to slide along the sliding groove (24) so as to realize that the movable ring (22) approaches and is away from the fixed ring (21) to clamp and release the can body; and the controlled end of the clamping driving telescopic cylinder (25) is connected with the output end of the PLC controller.

3. The automatic putty filling device according to claim 1, characterized in that: The filling mechanism (5) comprises a filling base (51), a weighing scale (52) arranged on the filling base (51), a material container (53) for containing the atomized cement arranged on the weighing scale (52), and a stirring assembly arranged on the material container (53) and used for stirring the atomized cement in the material container (53); an inner wall of the material container (53) is provided with a feeding pipe (57), a bottom of the feeding pipe (57) is provided with a bevel and extends into the inner bottom wall of the material container (53), a top of the feeding pipe (57) extends out of the top of the material container (53) and is connected with a pump (58) arranged on the material container (53) and used for pumping the atomized cement in the material container (53), a discharge port of the pump (58) is connected with a discharge pipe (59) arranged on one side above the rotating disc (1) and used for dropping the atomized cement pumped by the pump (58) into the tank body in the clamping mechanism (2), and the discharge pipe (59) and the feeding conveying belt (3) are arranged at 90° along the rotating center of the rotating disc (1); the input end of the PLC controller is connected with the output end of the weighing scale (52), and the output end of the PLC controller is connected with the controlled end of the stirring assembly and the pump (58) respectively.

4. The putty automatic filling device according to claim 3, characterized in that: The stirring assembly comprises a stirring motor (54) arranged on the top of the material container (53), the controlled end of the stirring motor (54) is connected with the output end of the PLC controller, a rotating shaft of the stirring motor (54) is arranged downward and connected with a stirring shaft (55) arranged longitudinally in the material container (53), and a shaft wall of the stirring shaft (55) is provided with a plurality of stirring blades (56).

5. The automatic putty filling device according to claim 3, characterized in that: The can sealing mechanism (6) comprises a can sealing base (61), a can cover cylinder (62) for stacking can covers and a rotating shaft (63) located on one side of the can cover cylinder (62) are vertically arranged upwards on the can sealing base (61); the bottom of the rotating shaft (63) is rotationally connected with the can sealing base (61) and is connected with a rotating driving assembly for driving the rotating shaft (63) to rotate, one side of the rotating shaft (63) close to the rotating disc (1) is provided with a lower mounting plate (64) located above the rotating disc (1) and an upper mounting plate (67) located above the lower mounting plate (64); The lower mounting plate (64) is provided with a material taking telescopic cylinder (65), a telescopic rod of the material taking telescopic cylinder (65) is arranged downward and is connected with a material taking suction disc (66) for sucking the can cover located at the top of the can cover cylinder (62), and the material taking suction disc (66) is located directly above the clamping mechanism (2) and is arranged at 90° along the rotating center of the rotating disc (1) with the discharge pipe (59) and the discharging conveying belt (7) respectively; The upper mounting plate (67) is provided with a downward pressing telescopic cylinder (68), a telescopic rod of the downward pressing telescopic cylinder (68) is arranged downward and is connected with a horizontally arranged mounting seat (69), a lower surface of the mounting seat (69) is oppositely provided with a downward pressing rod (610) extending out of the lower mounting plate (64) and located outside the material taking suction disc (66), and a bottom end head of the downward pressing rod (610) is provided with a pressing head (611) for pressing the can cover under the driving of the downward pressing telescopic cylinder (68); The output end of the PLC controller is connected with the controlled end of the rotary driving assembly, the taking material telescopic cylinder (65), the taking material suction disc (66) and the pressing telescopic cylinder (68) respectively.

6. The putty automatic filling device according to claim 5, characterized in that: The rotary driving assembly comprises a rotary motor arranged on the can sealing base (61), the controlled end of the rotary motor is connected with the output end of the PLC controller, the rotating shaft of the rotary motor is arranged upwardly and connected with a horizontally arranged gear (612), and the bottom of the rotating shaft (63) is provided with a gear ring (613) engaged with the gear (612).

7. The automatic putty filling device according to claim 1, characterized in that: The side portion of the discharging end of the feeding conveyor belt (3) is provided with a sensor for monitoring whether the can body is conveyed to the position, and the output end of the sensor is connected with the input end of the PLC controller.

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