Cup body bearing device for cup printing machine

Abstract

The utility model discloses a cup body bearing device for a cup printing machine, which comprises an air distribution disc, a graduator, a plate cylinder supporting disc, a plate cylinder and a positive and negative pressure switching device, the air distribution disc is fixedly arranged on an output shaft shell of the graduator, and the end face of the air distribution disc is provided with an air groove and an air hole. The periphery of the air distribution disc is provided with a first air channel hole and a second air channel hole which are communicated with the air groove and the air hole, the plate cylinder is fixedly arranged on the periphery of the plate cylinder supporting disc, the top end of the plate cylinder is inwards provided with a first air channel, and the end face of the plate cylinder supporting disc is provided with a third air channel hole communicated with the first air channel. Compared with the prior art, the positive and negative pressure switching device of the device enables different gas paths to be conducted through movement of the piston, and the device integrally adopts a mechanical structure for control and has the advantages of low cost, stable working effect and the like.

Description

Technical Field

[0001] The utility model relates to the technical field of automatic production of cup bodies, in particular to a cup body bearing device for a cup printing machine. Background Art

[0002] During the printing process of plastic cups, the plastic cups are generally transported to different stations for processing through a multi-station turret, and the printed plastic cups are removed from the turret after the processing is completed.

[0003] The turret mold in the prior art, such as the cup discharge flip mechanism in a high-speed paper cup outer pasting machine disclosed in Chinese patent announcement number: CN209079349U, in which during the production process, the processed outer pasting paper cup sleeve is placed on the die head of the multi-station paper cup turret, and the rotating head rotates so that one cup sleeve faces the cup discharge station of the multi-station paper cup turret of the high-speed paper cup outer pasting machine to wait for the cup to be discharged. After the multi-station paper cup turret transfers the processed outer pasting paper cup to the cup discharge station, the outer pasting paper cup is sent into the cup sleeve of the cup discharge flip mechanism by the die head pushing or high-pressure airflow blowing, and the multi-station paper cup turret rotates to continue the outer pasting process of the next paper cup, and at the same time, the rotating head rotates so that the outer pasting paper cup faces the cup discharge tube, and the outer pasting paper cup is sent into the cup discharge tube by the high-pressure airflow blowing, and is collected and stacked and packed. At this time, another cup sleeve faces the cup discharge station of the multi-station paper cup turret of the high-speed paper cup outer pasting machine, waiting for another cup to be discharged. However, since the turret has multiple workstations, each workstation requires a pneumatic control device to control and also needs to rotate, resulting in a complex overall structure. Utility Model Content

[0004] The technical problem to be solved by the utility model is to provide a cup body carrying device for a cup printing machine.

[0005] To achieve the above-mentioned purpose, the utility model discloses a cup body bearing device for a cup printing machine, comprising an air distribution plate, a divider, a plate cylinder support plate, a plate cylinder and a positive and negative pressure switching device, wherein the air distribution plate is fixedly arranged on the output shaft housing of the divider, an end surface of the air distribution plate is provided with an air groove and an air hole, and the outer periphery of the air distribution plate is provided with a first air path hole and a second air path hole which are in communication with the air groove and the air hole, and the first air path hole and the second air path hole are respectively connected to a negative pressure source and a positive pressure source;

[0006] The plate cylinder is fixedly inserted on the outer periphery of the plate cylinder support plate, a first air passage is provided inwardly from the top end of the plate cylinder, and a third air passage hole communicating with the first air passage is provided on the end surface of the plate cylinder support plate;

[0007] The plate cylinder support plate is driven by the indexer to rotate circumferentially so that the third air path hole is opposite to the air groove, the positive and negative pressure switching device, and the air hole in sequence, so that negative pressure is formed on the top of the plate cylinder to hold the cup body through the air groove, the positive and negative pressure switching device is used to enable the plate cylinder to flexibly absorb and release the cup body, and the cup body is blown away from the plate cylinder through the air hole.

[0008] Furthermore, the air groove includes a first air groove, a second air groove, and a third air groove, and the first air groove, the second air groove, and the third air groove are respectively distributed in a circular array along the rotation direction of the air distribution disk, and the air hole is located between the first air groove and the third air groove, and the positive and negative pressure switching device is arranged in the front end face of the air distribution disk, and it is located between the third air groove and the air hole.

[0009] Furthermore, a mounting hole is provided on the outer periphery of the plate cylinder support plate, and the bottom end of the plate cylinder is fixedly inserted in the mounting hole.

[0010] Furthermore, the positive and negative pressure switching device includes a piston and a compression spring. The front end surface of the gas distribution disk is provided with a working hole inwardly. The piston is slidably arranged in the working hole. The compression spring is compressibly arranged between the piston and the plate cylinder support disk.

[0011] Furthermore, a fourth air path hole is provided on the end surface of the gas distribution plate opposite to the working hole, and the fourth air path hole is externally connected to a positive pressure pipeline;

[0012] The two ends of the piston are provided with a second gas path channel and a third gas path channel which are not connected to each other. The second gas path channel is connected to the fourth gas path hole, and the third gas path channel is connected to the third gas path hole.

[0013] Furthermore, a fifth air path hole is provided on the inner periphery of the working hole adjacent to the third air groove, and the fifth air path hole is communicated with the third air groove.

[0014] Furthermore, a first annular recess and a second annular recess are respectively provided at both ends of the outer circumference of the piston;

[0015] A first gas path through hole in communication with the first annular concave portion is disposed in the second gas path channel, and a second gas path through hole in communication with the second annular concave portion is disposed in the third gas path channel;

[0016] The second annular recess is opposite to the fifth air path hole.

[0017] Furthermore, a fourth air path channel is provided in the air distribution disk, and a third air path hole and a fourth air path hole are provided on the inner wall at the end of the working hole. The third air path hole and the fourth air path hole are connected to the fourth air path channel, and the fourth air path hole is adjacent to the opening of the working hole. When the first annular recess is opposite to the third air path hole, a positive pressure air source is input into the working hole through the fourth air path hole to form a positive pressure at the top of the plate cylinder.

[0018] Furthermore, a sealing ring is provided between the outer periphery of the piston and the inner periphery of the working hole.

[0019] Furthermore, a boss is protruding from the end of one end of the piston, one end of the compression spring is passed through the boss, and the other end thereof is in contact with the plate cylinder support plate.

[0020] Compared with the prior art, the utility model has the beneficial effects of: by setting a positive and negative pressure switching device and cooperating with the plate cylinder, the switching of the cup body suction and placement actions is realized in the same station, which is convenient for the operator to check the printing effect of the cup body;

[0021] The positive and negative pressure switching device enables different gas paths by moving the piston. The overall mechanical structure control has the advantages of low cost and stable working effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 This is an exploded schematic diagram of the plate cylinder support plate and the indexer of the utility model;

[0023] Figure 2 It is a front perspective view of the gas distribution plate of the utility model;

[0024] Figure 3 It is a side cross-sectional schematic diagram of the utility model when the third air path hole is opposite to the first air groove and the third air groove;

[0025] Figure 4 It is a three-dimensional cross-sectional view of the third gas path hole of the utility model when it is opposite to the positive and negative pressure switching device;

[0026] Figure 5 for Figure 4 Schematic diagram of the middle section A;

[0027] Figure 6 It is a top perspective view of the gas distribution plate of the utility model;

[0028] Figure 7 This is a cross-sectional view of the positive and negative pressure switching device of the utility model when it is in positive pressure operation. DETAILED DESCRIPTION

[0029] In order to make the purpose, technical solution and advantages of the utility model clearer, the following will be combined with Figure 1-Figure 7 The utility model is further described in detail with reference to the accompanying drawings.

[0030] Reference Figure 1 As shown, a cup body bearing device for a cup printing machine includes an air distribution plate 1, a divider 2, a plate cylinder support plate 3, a plurality of plate cylinders 4 and a positive and negative pressure switching device 5.

[0031] The gas distribution disk 1 is fixedly installed on the shaft housing of the output shaft of the indexer 2 to ensure that the gas distribution disk 1 does not rotate with the output shaft of the indexer 2. The plate cylinder support disk 3 is fixedly installed on the outer periphery of the output shaft of the indexer 2 and is concentric with the gas distribution disk 1.

[0032] Recombination Figure 2 As shown, the front end surface of the gas distribution disk 1 is provided with gas grooves, which include a first gas groove 11, a second gas groove 12, a third gas groove 13 and an air hole 14. The first gas groove 11, the second gas groove 12, and the third gas groove 13 are respectively distributed in a circular array along the rotation direction of the gas distribution disk 1, and the air hole 14 is located between the first gas groove 11 and the third gas groove 13. The outer periphery of the gas distribution disk 1 opposite to the first gas groove 11, the second gas groove 12, and the third gas groove 13 is provided with a first gas path hole 15 that is in communication with each other. The first gas path hole 15 is used to connect to an external negative pressure pipeline so that the first gas groove 11, the second gas groove 12, and the third gas groove 13 form negative pressure respectively. The outer periphery of the gas distribution disk 1 opposite to the air hole 14 is provided with a second gas path hole 16 that is in communication with each other. The second gas path hole 16 is used to connect to an external positive pressure pipeline so that the air hole 14 forms a positive pressure.

[0033] The positive and negative pressure switching device 5 is disposed in the front end surface of the gas distribution disk 1 , and is located between the third gas groove 13 and the gas hole 14 .

[0034] The outer circumference of the plate cylinder support plate 3 is provided with a plurality of mounting holes 31, and the plurality of mounting holes 31 are circumferentially arranged on the outer circumference of the plate cylinder support plate 3. The number of mounting holes 31 in this embodiment corresponds to the number of the plate cylinder 4. The plate cylinder 4 is fixedly inserted in the mounting holes 31, and the connection method between the plate cylinder 4 and the mounting holes 31 in this embodiment is a well-known technology and will not be described here.

[0035] Recombination Figure 3 As shown, further, a first air path channel 41 is provided in the plate cylinder 4, the first air path channel 41 is communicated with the top of the plate cylinder 4, and a third air path hole 32 is provided on the back of the plate cylinder support plate 3, the third air path hole 32 is communicated with the first air path channel 41.

[0036] During operation, the indexer 2 drives the plate cylinder support plate 3 to rotate so that the third air path hole 32 is connected with the first air groove 11, the second air groove 12, and the third air groove 13 in sequence, so that a negative pressure is formed on the top of the plate cylinder 4 to hold the cup body. When the third air path hole 32 is connected with the air hole 14, the cup body at the top of the plate cylinder 4 is blown away.

[0037] Reference Figure 2 , Figure 4 , Figure 5 As shown, the positive and negative pressure switching device 5 includes a piston 51 and a compression spring 52 . A working hole 17 is provided inwardly on the front end surface of the gas distribution disk 1 . The working hole 17 is provided between the air hole 14 and the third air groove 13 . The piston 51 is slidably provided in the working hole 17 .

[0038] A sealing ring 6 is provided between the outer periphery of the piston 51 and the inner periphery of the working hole 17 , and the sealing ring 6 is sleeved on the outer periphery of the piston 51 .

[0039] Reference Figure 5 As shown, the compression spring 52 is arranged between the plate cylinder support plate 3 and the piston 51, and a boss 511 is arranged at the center of the end surface of the piston 51 opposite to the plate cylinder support plate 3. One end of the compression spring 52 is passed through the boss 511, and the other end thereof is in contact with the plate cylinder support plate 3.

[0040] The end surface of the piston 51 not adjacent to the plate cylinder support plate 3 is provided with a second gas path channel 512 inwardly, and the rear end surface of the gas distribution plate 1 is provided with a fourth gas path hole 18, which is in communication with the second gas path channel 512. The fourth gas path hole 18 is used to connect to an external positive pressure pipeline.

[0041] A third gas path 513 is provided inwardly on the end surface of the protruding column 511 .

[0042] Reference Figure 2 , Figure 6 As shown, a fifth air path hole 53 is provided on the inner periphery of the working hole 17 adjacent to the third air groove 13 , and the fifth air path hole 53 is in communication with the third air groove 13 .

[0043] Reference Figure 5 , Figure 6 As shown, a first annular recess 514 is provided on the outer periphery of the piston 51 opposite to the second gas path channel 512 , and a first gas path through hole 512 - 1 communicating with the first annular recess 514 is provided on the inner wall of the second gas path channel 512 .

[0044] A second annular recess 515 is disposed on the outer periphery of the piston 51 opposite to the third gas passage 513 , and a second gas passage hole 513 - 1 communicating with the second annular recess 515 is disposed on the inner wall of the third gas passage 513 .

[0045] The gas distribution plate 1 is provided with a fourth gas path 19, which is vertically opposite to the working hole 17. The inner wall at the end of the working hole 17 is provided with a third gas path through hole 54 and a fourth gas path through hole 55. The third gas path through hole 54 and the fourth gas path through hole 55 are in conduction with the fourth gas path 19.

[0046] The third gas path through hole 54 and the fourth gas path through hole 55 are arranged at intervals along the length direction of the working hole 17 , and the fourth gas path through hole 55 is adjacent to the opening of the working hole 17 .

[0047] In the initial state, no air flows through the fourth air passage hole 18 , and the piston 51 abuts against the end surface in the working hole 17 so that the second annular recess 515 faces the fifth air passage hole 53 .

[0048] During operation, the indexer 2 drives the plate cylinder support plate 3 to rotate so that the third air path hole 32 is relatively connected to the working hole 17. At this time, the negative pressure air in the third air groove 13 acts on the third air path channel 513 through the fifth air path hole 53, the second annular recess 515 and the second air path through hole 513-1, and flows into the third air path hole 32 to form a negative pressure suction cup at the top of the plate cylinder 4;

[0049] Recombination Figure 7 As shown, when the suction and release action is performed, the fourth air path hole 18 inputs positive pressure air into the second air path channel 512 to push the piston 51 along the working hole 17 toward the plate cylinder support plate 3 until the first annular recess 514 and the third air path through hole 54 are opposite to each other in vertical direction;

[0050] Subsequently, the positive-pressure air in the second air path channel 512 flows out from the first air path hole 512-1, flows through the third air path hole 54 and the fourth air path channel 19 in turn, flows from the fourth air path hole 55 to the working hole 17, and flows to the third air path hole 32 opposite thereto. At this time, a positive-pressure cup is sucked and released at the top of the plate cylinder 4, so that the operator can grab the cup for inspection.

[0051] This embodiment realizes the switching of the cup body suction and placement actions in the same station by setting a positive and negative pressure switching device and cooperating with the plate cylinder, so as to facilitate the operator to check the printing effect of the cup body;

[0052] The positive and negative pressure switching device enables different gas paths by moving the piston. The overall mechanical structure control has the advantages of low cost and stable working effect.

[0053] Of course, the above embodiments are only for illustrating the technical concept and features of the utility model, and their purpose is to enable people familiar with this technology to understand the content of the utility model and implement it accordingly. They cannot be used to limit the protection scope of the utility model. Any modifications made according to the spirit of the main technical scheme of the utility model should be included in the protection scope of the utility model.

Claims

1. A cup body carrying device for a cup printing machine, characterized in that: The invention comprises an air distribution plate (1), a divider (2), a plate cylinder support plate (3), a plate cylinder (4) and a positive and negative pressure switching device (5), wherein the air distribution plate (1) is fixedly arranged on the output shaft housing of the divider (2), an end surface of the air distribution plate (1) is provided with an air groove and an air hole (14), and the outer periphery of the air distribution plate (1) is provided with a first air path hole (15) and a second air path hole (16) which are in communication with the air groove and the air hole (14), and the first air path hole (15) and the second air path hole (16) are respectively connected to an external negative pressure source and a positive pressure source; The plate cylinder (4) is fixedly arranged on the outer periphery of the plate cylinder support plate (3); a first air passage (41) is arranged inwardly at the top end of the plate cylinder (4); and a third air passage hole (32) in communication with the first air passage (41) is arranged on the end surface of the plate cylinder support plate (3); The plate cylinder support plate (3) is driven by the indexer (2) to rotate circumferentially so that the third air path hole (32) is sequentially opposite to the air groove, the positive and negative pressure switching device (5), and the air hole (14), so that a negative pressure is formed at the top of the plate cylinder (4) to hold the cup body through the air groove, the positive and negative pressure switching device (5) is used to enable the plate cylinder (4) to flexibly suck and release the cup body, and the cup body is blown away from the plate cylinder (4) through the air hole (14).

2. The cup body carrying device for the cup printing machine according to claim 1, characterized in that: The air grooves comprise a first air groove (11), a second air groove (12), and a third air groove (13); the first air groove (11), the second air groove (12), and the third air groove (13) are respectively distributed in a circular array along the rotation direction of the air distribution disk (1); the air hole (14) is located between the first air groove (11) and the third air groove (13); and the positive and negative pressure switching device (5) is arranged in the front end surface of the air distribution disk (1), and is located between the third air groove (13) and the air hole (14).

3. The cup body carrying device for the cup printing machine according to claim 1, characterized in that: The outer periphery of the plate cylinder support plate (3) is provided with a mounting hole (31), and the bottom end of the plate cylinder (4) is fixedly inserted into the mounting hole (31).

4. The cup body carrying device for the cup printing machine according to claim 1, characterized in that: The positive and negative pressure switching device (5) comprises a piston (51) and a compression spring (52); a working hole (17) is provided inwardly on the front end surface of the gas distribution plate (1); the piston (51) is slidably disposed in the working hole (17); and the compression spring (52) is compressibly disposed between the piston (51) and the plate cylinder support plate (3).

5. The cup body carrying device for the cup printing machine according to claim 4, characterized in that: A fourth gas path hole (18) is provided on the end surface of the gas distribution plate (1) opposite to the working hole (17), and the fourth gas path hole (18) is externally connected to a positive pressure pipeline; A second gas path channel (512) and a third gas path channel (513) which are not connected to each other are arranged inwardly at both ends of the piston (51), the second gas path channel (512) being connected to the fourth gas path hole (18), and the third gas path channel (513) being connected to the third gas path hole (32).

6. The cup body carrying device for the cup printing machine according to claim 5, characterized in that: A fifth air path hole (53) is provided on the inner periphery of the working hole (17) adjacent to the air groove, and the fifth air path hole (53) is in communication with the air groove.

7. The cup body carrying device for the cup printing machine according to claim 6, characterized in that: A first annular recess (514) and a second annular recess (515) are respectively provided at two ends of the outer circumference of the piston (51); A first gas path through hole (512-1) in communication with the first annular recess (514) is provided in the second gas path channel (512), and a second gas path through hole (513-1) in communication with the second annular recess (515) is provided in the third gas path channel (513); The second annular recess (515) is opposite to the fifth air path hole (53).

8. The cup body carrying device for the cup printing machine according to claim 7, characterized in that: A fourth air path passage (19) is provided in the air distribution plate (1), and a third air path through hole (54) and a fourth air path through hole (55) are provided on the inner wall at the end of the working hole (17). The third air path through hole (54) and the fourth air path through hole (55) are in communication with the fourth air path passage (19), and the fourth air path through hole (55) is adjacent to the opening of the working hole (17). When the first annular recess (514) is opposite to the third air path through hole (54), a positive pressure air source is input into the working hole (17) through the fourth air path through hole (55) so that a positive pressure is formed at the top end of the plate cylinder (4).

9. The cup body carrying device for the cup printing machine according to claim 4, characterized in that: A sealing ring (6) is provided between the outer periphery of the piston (51) and the inner periphery of the working hole (17).

10. The cup body carrying device for the cup printing machine according to claim 4, characterized in that: A protruding column (511) is provided at one end of the piston (51), one end of the compression spring (52) is passed through the protruding column (511), and the other end thereof is in contact with the plate cylinder support plate (3).

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