Tank feeding mechanism for multi-layout printing device

Abstract

A can feeding mechanism for a multi-layout printing device comprises a rotating wheel and a back plate rotating synchronously with the rotating wheel, the back plate is provided with a plurality of core shaft assemblies used for being connected with can bodies in a sleeved mode and arranged in the circumferential direction of the rotating wheel, each core shaft assembly comprises a core shaft and a rotating shaft driving the core shaft to rotate, and a stroke arm controlling the core shaft to stretch out and draw back is connected to the core shaft. The tank body is sleeved on the mandrel; a shifting system for detecting and shifting the cup joint position of the tank body is arranged in the rotating wheel, and the shifting system comprises a plurality of shifting forks for shifting the tank body and an air cylinder for driving the shifting forks to move; compared with the prior art, through the mandrel assemblies arranged on the back plate, the tank bodies are connected to the corresponding mandrel assemblies in a sleeving mode, when the tank bodies which are not connected in a sleeving mode exist, the unqualified tank bodies are removed under the action of the shifting system, and therefore the phenomenon that printing of the tank bodies is affected due to the fact that the tank bodies are not connected to the mandrels in a sleeving mode in place is avoided; the tank body printing efficiency is improved, and meanwhile the failure rate of the printing device is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of can printing, in particular to a can feeding mechanism for a multi-panel printing device. Background Art

[0002] Aluminum cans have the advantages of good sealing and strong preservation. They can not only keep the beverage fresh, but also effectively prevent the influence of external oxygen, moisture and light on the beverage. At present, they are widely used in the fields of beer and beverages, and have also been expanded to the fields of high-temperature sterilization cans and tea beverages. In the future, they may also be applied to the general food field.

[0003] With the progress of society, the demand for personalized and diversified can printing is constantly increasing. Manufacturers will launch promotional cans with multiple layouts at different times. However, due to the limitations of printing technology, what can be done now is: single-color printing of 2 layouts mixed production at the same time, double-color printing of 4 layouts mixed production at the same time, which can no longer meet market demand.

[0004] The Chinese patent application number 202180025313.0 discloses a printing device, a printing method and a tank body. The above-disclosed printing device has multiple printing plates and a rubber blanket, which is used to print on the tank body. The printing device has: a rubber blanket transfer mechanism for transferring ink from multiple printing plates to the rubber blanket; and a tank body transfer mechanism for transferring the ink transferred to the rubber blanket to the tank body. The rubber blanket transfer mechanism performs transfer in the following manner: at least a portion of the ink transferred by one of the printing plates will be superimposed on at least a portion of the ink of other colors transferred by other printing plates. Chinese patent application number 201510494950.9 discloses a high-speed shaftless transmission metal can printing machine. The above-disclosed printing machine includes a machine base, a rear frame, a can feeding mechanism, a mandrel turntable, a transmission disk, a varnish machine, a front frame, a rubber plate wheel, a printing plate cylinder and an ink supply mechanism. A mandrel turntable is installed in the middle of the rear frame, and a plurality of sets of movable mandrel assemblies are evenly installed on the outer circle of the mandrel turntable. The varnish machine is installed on the machine base at the lower right of the mandrel turntable. A rubber plate wheel and a plurality of printing plate cylinder assemblies and an ink supply mechanism are installed on the front frame. The printing plate cylinder assembly, the rubber plate wheel, the mandrel turntable and the transmission disk are all equipped with servo motors. Each servo motor is provided with a motion controller and is connected to the background through bus communication for synchronous control.

[0005] In the above-disclosed prior art, when the can body enters the printing device, the can body may not be able to accurately move to the corresponding position in the can feeding mechanism, and the can body cannot be positioned and fixed, resulting in the can body being unable to rotate normally, making it impossible to print on the can body, and even causing the can feeding mechanism to get stuck, thereby causing the printing device to be unable to operate normally. Utility Model Content

[0006] The utility model aims to overcome the defects in the prior art and provides a can feeding mechanism for a multi-panel printing device which can detect the fixed position of a can body and reject the can body which cannot be accurately positioned.

[0007] In order to achieve the above-mentioned purpose of the utility model, the utility model adopts the following technical scheme: a can feeding mechanism for a multi-format printing device, including a rotating wheel and a back plate rotating synchronously with the rotating wheel, the back plate is provided with a plurality of core shaft assemblies arranged along the circumferential direction of the rotating wheel for sleeve-connecting the can body, the core shaft assembly includes a core shaft and a rotating shaft driving the core shaft to rotate, the core shaft is connected to a stroke arm for controlling the extension and retraction of the core shaft, and the can body is sleeved on the core shaft; the interior of the rotating wheel is provided with a disengagement system for detecting and disengaging the can body sleeve position, the disengagement system includes a plurality of forks for moving the can body and a cylinder driving the forks to move.

[0008] As a preferred solution of the utility model, the rotating wheel is provided with a pocket wheel matched with the core shaft assembly, and the pocket wheel rotates synchronously with the rotating wheel.

[0009] As a preferred solution of the utility model, a plurality of pockets arranged along the circumferential direction are formed on the pocket wheel, and the plurality of pockets correspond to the plurality of core shaft assemblies one by one.

[0010] As a preferred solution of the utility model, the spindle assembly also includes a support arm arranged on the stroke arm, the rotating shaft and the spindle are coaxially arranged, and the disengagement system is connected to the stroke arm for controlling the contraction of the stroke arm and driving the spindle to move.

[0011] As a preferred solution of the utility model, the support arm is connected to a rotating shaft, and the rotating shaft drives the core shaft, the support arm and the travel arm to rotate synchronously.

[0012] As a preferred solution of the utility model, a mounting wheel which rotates synchronously with the rotating wheel is provided in the rotating wheel, the shifting system is provided on the mounting wheel, the cylinder is provided in the middle of the mounting wheel, and the mounting wheel is provided with solenoid valves which correspond one to one with a plurality of shift forks.

[0013] As a preferred solution of the utility model, the disengagement system also includes a plurality of sleeves arranged along the circumferential direction of the disengagement system, a slide rod for installing the shift fork is slidably connected in the sleeve, the slide rod is connected to the stroke arm, and a connecting pipe connected to the cylinder is provided on the slide rod, and a connecting block is provided between the sleeve and the mounting wheel.

[0014] As a preferred solution of the utility model, the rotating wheel is connected to a driving gear for driving the rotating wheel to rotate, and a gear shaft is provided between the driving gear and the rotating wheel for driving the rotating wheel and the driving gear to rotate synchronously.

[0015] As a preferred solution of the utility model, the top of the back plate is also provided with a tank inlet passage matched with the core shaft assembly, and the tank body enters through the tank inlet passage and is sleeved on the core shaft.

[0016] As a preferred solution of the utility model, a sensor cooperating with the pull-off system is provided on the top of the back plate.

[0017] Compared with the prior art, the beneficial effects of the utility model are:

[0018] The can body is sleeved on the corresponding core shaft assembly by means of a plurality of core shaft assemblies arranged on the back plate. When an unqualified can body is sleeved, the unqualified can body is removed by the action of the removal system, thereby avoiding the printing of the can body being affected by the inappropriate sleeve connection of the can body on the core shaft, improving the efficiency of can body printing, and reducing the failure rate of the printing device. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a structural schematic diagram of the utility model;

[0020] Figure 2 It is a structural schematic diagram of the expulsion system of the utility model;

[0021] Figure 3 It is a structural schematic diagram of the driving gear of the utility model;

[0022] Figure 4 is a schematic diagram of the structure of the mandrel assembly;

[0023] Figure 5 This is a schematic diagram of the structure of the shift fork

[0024] Figure markings: back plate 1, sensor 101, rotating wheel 2, mounting wheel 201, pocket wheel 202, pocket 2021, spindle assembly 3, spindle 301, support arm 302, stroke arm 303, rotating shaft 304, driving gear 4, gear shaft 401, tank inlet channel 5, disengagement system 6, fork 601, slide rod 602, connecting pipe 6021, sleeve 603, connecting block 6031, solenoid valve 604, cylinder 605. DETAILED DESCRIPTION

[0025] The embodiments of the utility model are described in detail below with reference to the accompanying drawings.

[0026] like Figure 1-Figure 5As shown, a can feeding mechanism for a multi-panel printing device includes a rotating wheel 2 and a back plate 1 that rotates synchronously with the rotating wheel 2, the back plate 1 is provided with a plurality of spindle assemblies 3 for sleeved can bodies arranged along the circumferential direction of the rotating wheel 2, the spindle assembly 3 includes a spindle 301 and a rotating shaft 304 that drives the spindle 301 to rotate, the spindle 301 is connected with a stroke arm 303 that controls the extension and retraction of the spindle 301, and the can body is sleeved on the spindle 301; the inside of the rotating wheel 2 is provided with a disengagement system 6 for detecting and disengaging the sleeved position of the can body, the disengagement system 6 includes a plurality of shift forks 601 for shifting the can body and a cylinder 605 that drives the shift forks 601 to move.

[0027] Furthermore, a can feeding mechanism is arranged in the printing device for conveying the can body to the printing position, the back plate 1 is arranged on one side of the rotating wheel 2, and the back plate 1 is driven to rotate synchronously by the rotating wheel 2, a plurality of core shaft assemblies 3 are rotatably connected to the back plate 1, and the plurality of core shaft assemblies 3 are arranged around the rotating wheel 2, the can body is sleeved and fixed by the core shaft assemblies 3, and the can body is driven to move under the action of the back plate 1; specifically, the rotating shaft 304 is rotatably connected to the back plate 1, and the rotating shaft 304 is controlled by the driving system to drive the core shaft 301 to rotate, and the travel arm 303 drives the core shaft 301 to retract and retract, thereby realizing the sleeve fixation of the can body; in addition, the unqualified can body is removed under the action of the removal system 6, thereby avoiding the printing of the can body due to the inadequate sleeve connection of the can body on the core shaft 301, improving the efficiency of the can body printing, and reducing the failure rate of the printing device.

[0028] A pocket wheel 202 is provided on the rotating wheel 2, which cooperates with the core shaft assembly 3. The pocket wheel 202 rotates synchronously with the rotating wheel 2. Furthermore, the pocket wheel 202 is sleeved on the rotating wheel 2, and the pocket wheel 202 is arranged on the circumferential wall of the rotating wheel 2. Specifically, a plurality of pockets 2021 arranged along the circumferential direction are formed on the pocket wheel 202, and the plurality of pockets 2021 correspond one-to-one to the plurality of core shaft assemblies 3. When the can body enters the can feeding mechanism, the pocket 2021 on the pocket wheel 202 is used to guide the can body, so that the can body can be smoothly sleeved on the core shaft 301.

[0029] The spindle assembly 3 also includes a support arm 302 arranged on the stroke arm 303, and the rotating shaft 304 is coaxially arranged with the spindle 301. The disengagement system 6 is connected to the stroke arm 303 for controlling the contraction of the stroke arm 303 and driving the spindle 301 to move. Furthermore, the support arm 302 is connected to the rotating shaft 304, and the rotating shaft 304 drives the spindle 301, the support arm 302 and the stroke arm 303 to rotate synchronously.

[0030] A mounting wheel 201 which rotates synchronously with the rotating wheel 2 is provided in the rotating wheel 2, a disengaging system 6 is provided on the mounting wheel 201, a cylinder 605 is provided in the middle of the mounting wheel 201, and a solenoid valve 604 which corresponds one to one with a plurality of shift forks 601 is provided on the mounting wheel 201. Furthermore, the mounting wheel 201 is coaxially arranged with the rotating wheel 2, the disengaging system 6 rotates synchronously with the mounting wheel 201, and the cylinder 605 is provided on the mounting wheel 201. The corresponding shift fork 601 is driven to move by the cooperation of the cylinder 605 and the solenoid valve 604, thereby realizing the disengagement of the tank body which is not properly sleeved.

[0031] The disengagement system 6 further includes a plurality of sleeves 603 arranged along the circumferential direction of the disengagement system 6, a slide rod 602 for mounting the shift fork 601 is slidably connected in the sleeve 603, the slide rod 602 is connected to the stroke arm 303, and a connecting pipe 6021 connected to the cylinder 605 is provided on the slide rod 602, a connecting block 6031 is provided between the sleeve 603 and the mounting wheel 201, further, the sleeve 603 is fixedly arranged on the mounting wheel 201 through the connecting block 6031, and the sleeve 603 is slidably connected to the axial direction of the mounting wheel 201. It is configured that one end of the slide rod 602 is connected to the stroke arm 303, and the other end is connected to the fork 601. In addition, a sensor 101 that cooperates with the disengagement system 6 is provided on the top of the back plate 1. When the sensor 101 detects that the tank body is not properly sleeved, the cylinder 605 and the solenoid valve 604 control the corresponding slide rod 602 to slide in the sleeve 603, and drive the stroke arm 303 and the fork 601 to move, so that the core shaft 301 is separated from the tank body. At this time, the tank body falls into the mounting wheel 201, and the fork 601 disengages the tank body.

[0032] A driving gear 4 for driving the rotating wheel 2 to rotate is connected to the rotating wheel 2. A gear shaft 401 for driving the rotating wheel 2 and the driving gear 4 to rotate synchronously is provided between the driving gear 4 and the rotating wheel 2. Furthermore, the driving gear 4 is driven to rotate by the power mechanism of the printing device, and then the rotating wheel 2 is driven to rotate under the action of the gear shaft 401.

[0033] The top of the back plate 1 is also provided with a tank inlet channel 5 that cooperates with the core shaft assembly 3. The tank body enters through the tank inlet channel 5 and is sleeved on the core shaft 301. The outlet of the tank inlet channel 5 corresponds to the pocket 2021. The tank body enters through the tank inlet channel 5 and falls on the pocket 2021.

[0034] The above description of the disclosed embodiments enables those skilled in the art to implement or use the present invention. Various modifications to these embodiments will be apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention; therefore, the present invention will not be limited to the embodiments shown herein, but will conform to the widest scope consistent with the principles and novel features disclosed herein.

[0035] Although the following terms are used more frequently in this article: back plate 1, sensor 101, rotating wheel 2, mounting wheel 201, pocket wheel 202, pocket 2021, spindle assembly 3, spindle 301, support arm 302, travel arm 303, rotating shaft 304, driving gear 4, gear shaft 401, tank inlet channel 5, shifting system 6, shift fork 601, slide bar 602, connecting pipe 6021, sleeve 603, connecting block 6031, solenoid valve 604, cylinder 605, etc., the possibility of using other terms is not excluded. These terms are used only to more conveniently describe and explain the essence of the utility model; interpreting them as any additional restrictions is contrary to the spirit of the utility model.

Claims

1. A can feeding mechanism for a multi-panel printing device, characterized in that: The invention comprises a rotating wheel (2) and a back plate (1) which rotates synchronously with the rotating wheel (2); the back plate (1) is provided with a plurality of mandrel assemblies (3) which are arranged along the circumferential direction of the rotating wheel (2) and are used to sleeve a tank body; the mandrel assemblies (3) comprise a mandrel (301) and a rotating shaft (304) which drives the mandrel (301) to rotate; the mandrel (301) is connected with a travel arm (303) which controls the extension and retraction of the mandrel (301); and the tank body is sleeved on the mandrel (301); a disengagement system (6) which is used to detect and disengage the sleeved position of the tank body is provided inside the rotating wheel (2); the disengagement system (6) comprises a plurality of shift forks (601) which are used to shift the tank body and a cylinder (605) which drives the shift forks (601) to move.

2. A can feeding mechanism for a multi-panel printing device according to claim 1, characterized in that: The rotating wheel (2) is provided with a pocket wheel (202) matched with the core shaft assembly (3), and the pocket wheel (202) rotates synchronously with the rotating wheel (2).

3. A can feeding mechanism for a multi-panel printing device according to claim 2, characterized in that: The pocket wheel (202) is formed with a plurality of pockets (2021) arranged along a circumferential direction, and the plurality of pockets (2021) correspond one-to-one to the plurality of spindle assemblies (3).

4. The can feeding mechanism for a multi-panel printing device according to claim 1, characterized in that: The spindle assembly (3) further comprises a support arm (302) arranged on the travel arm (303); the rotating shaft (304) is coaxially arranged with the spindle (301); and the disengagement system (6) is connected to the travel arm (303) for controlling the contraction of the travel arm (303) and driving the spindle (301) to move.

5. The can feeding mechanism for a multi-panel printing device according to claim 4, characterized in that: The support arm (302) is connected to the rotating shaft (304), and the rotating shaft (304) drives the core shaft (301), the support arm (302) and the travel arm (303) to rotate synchronously.

6. The can feeding mechanism for a multi-panel printing device according to claim 1, characterized in that: The rotating wheel (2) is provided with a mounting wheel (201) which rotates synchronously with the rotating wheel (2), the shifting system (6) is provided on the mounting wheel (201), the cylinder (605) is provided in the middle of the mounting wheel (201), and the mounting wheel (201) is provided with electromagnetic valves (604) which correspond one by one to a plurality of shifting forks (601).

7. A can feeding mechanism for a multi-panel printing device according to claim 6, characterized in that: The shifting system (6) further comprises a plurality of sleeves (603) arranged along the circumferential direction of the shifting system (6), a slide rod (602) for mounting a shifting fork (601) being slidably connected in the sleeve (603), the slide rod (602) being connected to the travel arm (303), and a connecting pipe (6021) communicating with the cylinder (605) being provided on the slide rod (602), and a connecting block (6031) being provided between the sleeve (603) and the mounting wheel (201).

8. The can feeding mechanism for a multi-panel printing device according to claim 1, characterized in that: The rotating wheel (2) is connected to a driving gear (4) for driving the rotating wheel (2) to rotate, and a gear shaft (401) is provided between the driving gear (4) and the rotating wheel (2) for driving the rotating wheel (2) and the driving gear (4) to rotate synchronously.

9. The can feeding mechanism for a multi-panel printing device according to claim 1, characterized in that: The top of the back plate (1) is also provided with a tank inlet channel (5) matched with the core shaft assembly (3), and the tank body enters through the tank inlet channel (5) and is sleeved on the core shaft (301).

10. The can feeding mechanism for a multi-panel printing device according to claim 1, characterized in that: A sensor (101) that cooperates with the pull-off system (6) is provided on the top of the back plate (1).

Images