Can printing machine discharge device

Abstract

The present invention relates to a discharging device of a can printing machine, comprising a vacuum suction cup, a vacuum generator, a rotary joint and a frame, wherein the vacuum suction cup is connected to the vacuum generator, and further comprising: a suction rod, wherein at least two suction rods are provided, and one end of the suction rod is provided with a vacuum suction cup; the suction rod is installed on a rotating disk; at least two sliding shafts are provided, and the rotating disk is slidably inserted on the sliding shafts; one end of an air suction pipe is fixed on the rotating disk, and the other end is provided with a rotary joint, and the air suction pipe is connected to the vacuum generator; one end of the sliding shaft is fixed on a driving disk, and the driving disk is rotatably installed on the frame, and the air suction pipe is movably inserted on the driving disk; a rotating driving device is installed on the frame and connected to the driving disk; a telescopic device is installed on the frame, and the air suction pipe is connected to the telescopic device; and a ventilation device is connected to the vacuum generator. The discharging device of the can printing machine provided by the present invention absorbs the can body by vacuum, and then pulls the can body out of the printing rod, and has high working efficiency and is convenient to use.

Description

Technical Field

[0001] The invention relates to a can discharging device, in particular to a can printing machine discharging device. Background Art

[0002] The surface of the spray can or toothpaste can needs to be printed with patterns and texts. During printing, it is an automatic line printing. The can is fixed on the printing rod, which is fixed on the chain. The chain drives the can and then goes through each printing process in sequence. After printing is completed, the can needs to be removed from the printing rod and inserted into the material transfer rod of another chain, so that the can follows the material transfer rod to perform other processes. At present, the can is taken out manually, which has low work efficiency and slow speed, affecting the overall beat. Summary of the invention

[0003] In order to solve the above problems, the present invention provides a can printing machine discharging device which can automatically absorb and remove cans, has a high degree of automation and a fast can removal speed. The specific technical solution is as follows:

[0004] The discharging device of a can printing machine comprises a vacuum suction cup, a vacuum generator, a rotary joint and a frame, wherein the vacuum suction cup is connected to the vacuum generator, and further comprises: a suction rod, wherein the suction rods are not less than two, and one end of the suction rods is equipped with a vacuum suction cup; a rotating disk, wherein the suction rods are mounted on the rotating disk; a sliding shaft, wherein the sliding shafts are not less than two, and the rotating disk is slidably inserted on the sliding shaft; an air suction pipe, wherein one end of the air suction pipe is fixed to the rotating disk, and the other end is equipped with a rotary joint, and the air suction pipe is connected to the vacuum generator; a driving disk, wherein one end of the sliding shaft is fixed to the driving disk, the driving disk is rotatably mounted on the frame, and the air suction pipe is movably inserted on the driving disk; a rotating driving device, wherein the rotating driving device is mounted on the frame and is rotatably connected to the driving disk. The can printing press is connected to a movable plate; a telescopic device, the telescopic device is installed on the frame, and the suction pipe is connected to the telescopic device; a ventilation device, the ventilation device is connected to the vacuum generator; the discharging device of the can printing press includes a suction and discharge state and a transposition state. In the suction and discharge state, the telescopic device pushes the suction rod toward the can body through the suction pipe, presses at least one of the vacuum suction cups to the tail of the can body and absorbs the can body with the suction cup, wherein at least one vacuum suction cup drives the can body to be inserted onto the material moving rod, and at the same time starts the ventilation device to blow air from the vacuum suction cup to loosen the can body; in the transposition state, the telescopic device retracts the vacuum suction cup, and the can body leaves the printing rod, and the rotating drive device drives the rotating disk to rotate through the driving disk, and rotates the vacant vacuum suction cup to the opposite side of the printing rod.

[0005] By adopting the above technical scheme, the telescopic device drives the vacuum suction cup to move back and forth through the rotating disk. One vacuum suction cup presses to the tail of the can body to adsorb the can body, and the other vacuum suction cup inserts the adsorbed can body into the material moving rod. The vacuum suction cup that adsorbs the can body generates pressure through the vacuum generator, and the vacuum suction cup inserted on the material moving rod blows air to make the can body separate from the vacuum suction cup. The rotating disk rotates 180 degrees when retracting, and the adsorbed can body is set opposite to the material moving rod, and the empty vacuum suction cup is set opposite to the tank body.

[0006] Furthermore, the rotation drive device includes: a hollow shaft, which is rotatably mounted on the frame and connected to the drive disk, and the suction pipe is slidably inserted into the hollow shaft; a driven wheel, which is fixed on the hollow shaft; a driving wheel, which is connected to the driven wheel; and a rotating motor, which is fixed on the frame and connected to the driving wheel.

[0007] Furthermore, the telescopic device includes: a telescopic slide rod, which is fixed on the frame; a telescopic seat, which is slidably inserted on the telescopic slide rod, and the suction pipe is rotatably connected to the telescopic seat; a telescopic connecting rod, one end of which is rotatably connected to the telescopic seat; a telescopic driving rod, one end of which is rotatably connected to the other end of the telescopic connecting rod; and a telescopic motor, which is connected to the other end of the telescopic driving rod.

[0008] By adopting the above technical solution, the telescopic slide rod supports the telescopic seat, so that both ends of the suction pipe are supported, thereby improving stability.

[0009] Furthermore, it also includes: a first shaft sleeve, which is fixed on the suction pipe; and a thrust ball bearing, which is fixed between the first shaft sleeve and the telescopic seat.

[0010] By adopting the above technical solution, the thrust ball bearing does not affect the rotation and can withstand the axial force to ensure smooth rotation.

[0011] Furthermore, the ventilation device includes: a lever valve, which is fixed on the rotating disk and installed between the vacuum suction cup and the vacuum generator, and is used to control the suction or blowing of the vacuum suction cup; a collision block, which is fixed on the frame and arranged opposite to the lever valve; in the suction and release state, when the vacuum suction cup with the can body adsorbed moves toward the material moving rod, the lever valve contacts the collision block, the lever valve changes direction, and the vacuum suction cup blows.

[0012] By adopting the above technical solution, the impact block activates the lever valve, making the control simple and reliable. Only when the vacuum suction cup moves to the material transfer rod will the air path be switched to blow the vacuum suction cup, making it easier for the tank to detach from the vacuum suction cup.

[0013] Furthermore, it also includes a buffer seat, which is fixed on the rotating disk and the suction rod is slidably inserted on the buffer seat; and a buffer spring, which is sleeved on the suction rod and located between the suction rod and the buffer seat.

[0014] By adopting the above technical solution, the buffer spring can provide a certain buffer when the vacuum suction cup is pressed onto the tail of the tank body, thereby preventing a large force from directly pressing onto the tail of the tank body and causing damage to the tank body or equipment.

[0015] Compared with the prior art, the present invention has the following beneficial effects:

[0016] The discharging device of the can body printing machine provided by the invention absorbs the can body by vacuum and then pulls the can body out of the printing rod, so the working efficiency is high and the use is convenient. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the cross-sectional structure of the suction end of the discharge device of the can printing machine;

[0018] Figure 2 It is a schematic diagram of the cross-sectional structure of the driving end of the discharging device of the can printing machine;

[0019] Figure 3 It is a schematic diagram of the cross-sectional structure of a discharging device of a can printing machine;

[0020] Figure 4 It is a front view of the discharging device of the can printing machine;

[0021] Figure 5 It is the pneumatic principle diagram of the discharge device of the can printing machine. DETAILED DESCRIPTION

[0022] The present invention will be further described with reference to the accompanying drawings.

[0023] like Figures 1 to 5As shown, the discharging device of the can printing machine includes a vacuum suction cup 11, a vacuum generator 71, a rotary joint 25 and a frame 41, wherein the vacuum suction cup 11 is connected to the vacuum generator 71, and further includes: a suction rod 12, wherein there are at least two suction rods 12, and one end of the suction rod 12 is equipped with the vacuum suction cup 11; a rotating disk 15, wherein the suction rod 12 is mounted on the rotating disk 15; a sliding shaft 21, wherein there are at least two sliding shafts 21, and the rotating disk 15 is slidably inserted on the sliding shaft 21; an air suction pipe 24, wherein one end of the air suction pipe 24 is fixed on the rotating disk 15, and the other end is equipped with a rotary joint 25, and the air suction pipe 24 is connected to the vacuum generator 71; a driving disk 23, wherein one end of the sliding shaft 21 is fixed on the driving disk 23, and the driving disk 23 is rotatably mounted on the frame 41, and the air suction pipe 24 is movably inserted on the driving disk 23; a rotating driving device, wherein the rotating driving device The device is installed on the frame 41 and connected to the driving disk 23; the telescopic device is installed on the frame 41, and the suction pipe 24 is connected to the telescopic device; the ventilation device is connected to the vacuum generator 71; the discharge device of the can printing machine includes a suction and discharge state and a transposition state. In the suction and discharge state, the telescopic device pushes the suction rod 12 to press against the can body through the suction pipe 24, presses at least one vacuum suction cup 11 to the tail of the can body and absorbs the can body with the suction cup, wherein at least one vacuum suction cup 11 drives the can body to be inserted into the material transfer rod, and at the same time starts the ventilation device to blow the vacuum suction cup 11 to loosen the can body; in the transposition state, the telescopic device retracts the vacuum suction cup 11, and the can body leaves the printing rod, and the rotating drive device drives the rotating disk 15 to rotate through the driving disk 23, and rotates the vacant vacuum suction cup 11 to the opposite side of the printing rod.

[0024] The telescopic device drives the vacuum suction cup 11 to move back and forth through the rotating disk 15. One vacuum suction cup 11 presses to the tail of the can body to adsorb the can body, and the other vacuum suction cup 11 inserts the adsorbed can body into the material moving rod. The vacuum suction cup 11 that adsorbs the can body generates pressure through the vacuum generator 71, and the vacuum suction cup 11 inserted on the material moving rod blows air to make the can body separate from the vacuum suction cup 11. The rotating disk 15 rotates 180 degrees when retracting, and the adsorbed can body is set opposite to the material moving rod, and the empty vacuum suction cup 11 is set opposite to the can body.

[0025] Specifically, two sliding shafts 21 are symmetrically provided, and a connecting plate is installed at the other end of the sliding shaft 21. The connecting plate can not only enhance the stability of the sliding shaft 21, but also prevent the rotating disk 15 from being separated from the sliding shaft 21, thereby playing a limiting role.

[0026] The vacuum generator 71 is fixed on the rotating disk 15, and the vacuum generator 71 is connected to the suction pipe 24 through an air pipe. One end of the suction pipe 24 is sealed and fixed on the rotating disk 15. The rotary joint 25 is connected to the air source.

[0027] The rotating drive device includes: a hollow shaft 31, which is rotatably mounted on a frame 41 and connected to a driving disk 23, and an air intake pipe 24 is slidably inserted into the hollow shaft 31; a driven wheel 31, which is fixed on the hollow shaft 31; a driving wheel 33, which is connected to the driven wheel 31; and a rotating motor 34, which is fixed on the frame 41 and connected to the driving wheel 33.

[0028] The hollow shaft 31 is fixed on the frame 41 through a bearing and is slidably connected to the suction pipe 24 through a copper sleeve.

[0029] The driving wheel 33 and the driven wheel 31 can both be gears, or can also be synchronous pulleys or sprockets. When both are synchronous pulleys, they are connected by a synchronous belt, and when both are sprockets, they are connected by a chain.

[0030] The telescopic device includes: a telescopic slide rod 42, which is fixed on the frame 41; a telescopic seat 43, which is slidably inserted on the telescopic slide rod 42, and the suction pipe 24 is rotatably connected to the telescopic seat 43; a telescopic connecting rod 51, one end of the telescopic connecting rod 51 is rotatably connected to the telescopic seat 43; a telescopic driving rod 52, one end of the telescopic driving rod 52 is rotatably connected to the other end of the telescopic connecting rod 51; and a telescopic motor, which is a motor at the other end of the telescopic driving rod 52.

[0031] The telescopic slide rod 42 supports the telescopic seat 43, so that both ends of the air intake pipe 24 are supported, thereby improving stability.

[0032] The first sleeve 44 is fixed on the air intake pipe 24 ; and a thrust ball bearing 45 is fixed between the first sleeve 44 and the telescopic seat 43 .

[0033] The thrust ball bearing 45 does not affect the rotation and can bear the axial force to ensure smooth rotation.

[0034] Two thrust ball bearings are respectively fixed at both ends of the first sleeve 44, the shoulder of the first sleeve 44 is clamped on one of the thrust ball bearings 45, and the other thrust ball bearing 45 is pressed on the telescopic seat 43 through a fixing ring. The shoulder and the fixing ring fix the axis of the suction pipe 24, so that the suction pipe 24 can rotate relative to the telescopic seat 43, but cannot move radially.

[0035] The ventilation device includes: a lever valve 73, which is fixed on the rotating disk 15 and installed between the vacuum suction cup 11 and the vacuum generator 71, and is used to control the suction or blowing of the vacuum suction cup 11; a collision block 74, which is fixed on the frame 41 and is arranged opposite to the lever valve 73; in the suction and discharge state, when the vacuum suction cup 11 adsorbed with the tank body moves toward the material transfer rod, the lever valve 73 contacts the collision block 74, the lever valve 73 changes direction, and the vacuum suction cup 11 blows air. The collision block 74 activates the lever valve 73, making the control simple and reliable. Only when the vacuum suction cup 11 moves to the material transfer rod will the air path be switched to make the vacuum suction cup 11 blow air, so that the tank body can be easily separated from the vacuum suction cup 11.

[0036] The lever valve 73 is a three-port, two-position mechanical valve.

[0037] In order to prevent air leakage, a one-way throttle valve can be added to the air blowing pipeline.

[0038] like Figure 5 As shown, the air source is connected to the air inlet of the lever valve 73, the first air outlet of the lever valve 73 is connected to the vacuum generator 71, the vacuum generator 71 is connected to the vacuum suction cup 11, the second air outlet is connected to the one-way throttle valve, and the one-way throttle valve is connected to the vacuum suction cup 11. When the tank is adsorbed, the one-way throttle valve is different, and the one-way throttle valve is turned on when blowing.

[0039] It also includes a buffer seat 14 , which is fixed on the rotating disk 15 , and the suction rod 12 is slidably inserted on the buffer seat 14 ; and a buffer spring 13 , which is sleeved on the suction rod 12 and located between the suction rod 12 and the buffer seat 14 .

[0040] The buffer spring 13 can provide a certain buffer when the vacuum suction cup 11 is pressed onto the tail of the tank body, thereby preventing a large force from directly pressing onto the tail of the tank body and causing damage to the tank body or equipment.

[0041] The discharging device of the can body printing machine provided by the invention absorbs the can body by vacuum and then pulls the can body out of the printing rod, so the working efficiency is high and the use is convenient.

[0042] The technical principle of the present invention is described above in conjunction with specific embodiments. These descriptions are only for explaining the principle of the present invention and cannot be interpreted as limiting the protection scope of the present invention in any way. Based on the explanations herein, those skilled in the art can associate other specific implementations of the present invention without paying creative labor, and these methods will fall within the protection scope of the claims of the present invention.

Claims

1. A discharging device for a can printing machine, comprising a vacuum suction cup, a vacuum generator, a rotary joint and a frame, wherein the vacuum suction cup is connected to the vacuum generator, and is characterized in that: Also includes: Suction rods, of which there are at least two, one end of which is provided with a vacuum suction cup; A rotating disk, on which the suction rod is mounted; Sliding shafts, the sliding shafts are no less than two, and the rotating disk is slidably inserted on the sliding shafts; A suction pipe, one end of which is fixed on the rotating disk, and the other end of which is provided with a rotary joint, and the suction pipe is connected to the vacuum generator; A driving disk, one end of the sliding shaft is fixed on the driving disk, the driving disk is rotatably mounted on the frame, and the suction pipe is movably inserted into the driving disk; A rotation driving device, the rotation driving device is mounted on the frame and connected to the driving disk; A telescopic device, the telescopic device is mounted on the frame, and the suction pipe is connected to the telescopic device; A ventilation device connected to the vacuum generator; The discharging device of the can printing machine includes a suction and discharge state and a shifting state. In the suction and discharge state, the telescopic device pushes the suction rod to press against the can body through the suction pipe, presses at least one of the vacuum suction cups to the tail of the can body and absorbs the can body with the suction cup, wherein at least one vacuum suction cup drives the can body to be inserted onto the material transfer rod, and at the same time, the ventilation device is started to blow air from the vacuum suction cup to loosen the can body; in the shifting state, the telescopic device retracts the vacuum suction cup, and the can body leaves the printing rod, and the rotating drive device drives the rotating disk to rotate through the driving disk, and rotates the vacant vacuum suction cup to the opposite side of the printing rod. The rotary drive device comprises: A hollow shaft, the hollow shaft is rotatably mounted on the frame and connected to the driving disk, and the suction pipe is slidably inserted into the hollow shaft; A driven wheel, the driven wheel is fixed on the hollow shaft; A driving wheel connected to the driven wheel; A rotating motor is fixed on the frame and connected to the driving wheel. The telescopic device comprises: A telescopic slide rod, wherein the telescopic slide rod is fixed on the frame; A telescopic seat, the telescopic seat is slidably inserted on the telescopic slide rod, and the suction pipe is rotatably connected to the telescopic seat; A telescopic connecting rod, one end of which is rotatably connected to the telescopic seat; A telescopic driving rod, one end of which is rotatably connected to the other end of the telescopic connecting rod; A telescopic motor, the telescopic motor and the motor at the other end of the telescopic driving rod, The ventilation device comprises: A lever valve, the lever valve is fixed on the rotating disk, the lever valve is installed between the vacuum suction cup and the vacuum generator, and is used to control the vacuum suction cup to suck or blow air; A collision block, the collision block is fixed on the frame and arranged opposite to the lever valve; In the material suction and discharge state, when the vacuum suction cup with the can body sucked thereon moves toward the material moving rod, the lever valve contacts the collision block, the lever valve switches direction, and the vacuum suction cup blows air.

2. The discharging device of the can printing machine according to claim 1, characterized in that: Also includes: a first sleeve, the first sleeve being fixed on the suction pipe; A thrust ball bearing is fixed between the first shaft sleeve and the telescopic seat.

3. The discharging device of the can printing machine according to claim 1, characterized in that: Also includes: A buffer seat, the buffer seat is fixed on the rotating disk, and the suction rod is slidably inserted on the buffer seat; A buffer spring is sleeved on the material suction rod and is located between the material suction rod and the buffer seat.

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