Cylinder printing device

Abstract

The utility model discloses a cylinder printing device which comprises a workpiece placing unit, a printing unit, a printing unit, a printing unit and a printing unit. The moving unit is arranged right above the workpiece placing unit; the transfer printing unit is arranged on the moving unit and horizontally moves right above the workpiece placing unit along with the movement of the moving unit; the printing ink control unit is arranged on the moving unit, is positioned on one side of the transfer printing unit, and scrapes the printing ink into an oil film with a preset thickness along with the movement of the moving unit; the printing ink containing unit is arranged under the printing ink control unit, the printing ink containing unit is provided with an etching plate, and the control end of the printing ink control unit can make contact with the etching plate and scrape an oil film with the preset thickness on the upper surface of the etching plate. According to the utility model, the transfer printing efficiency and quality can be ensured on the accurate transfer printing of a given area on the surface of the cylinder.

Description

Technical Field

[0001] The utility model relates to the technical field of workpiece silk screen printing, and specifically to a cylindrical printing device. Background Art

[0002] The surface printing methods of cylindrical workpieces include conventional spraying, roller brushing, screen printing and transfer printing. Application No. 201910434647.8 discloses an automatic glazing device for the cylindrical surface of a cylindrical workpiece, including a glazing component, a clamping component, a calendering component and a bottom plate. The clamping component includes a chuck, which can move up and down in the vertical direction under the action of a first driving mechanism, and the first support and the second support are arranged on the left and right sides of the chuck. A workpiece tooling for positioning the workpiece is also provided directly below the chuck. The glaze box can be driven by the second driving mechanism arranged on the first support to move horizontally left and right to drive the coating roller to connect with one side of the cylindrical surface of the workpiece and coat it. The pressure roller mounting seat can be driven by the third driving mechanism arranged on the second support to move horizontally left and right to drive the pressure roller to connect with the other side of the cylindrical surface of the workpiece and calender it. It realizes thorough printing of the cylindrical surface of the workpiece by roller brush spraying. The overall structure of the equipment is relatively large, with many parts and components, and the use process is complicated, and it is impossible to achieve accurate pattern printing.

[0003] Application No. 202011141168.6 discloses an automatic liquid spraying device for cylindrical workpieces and an operation method thereof, wherein the front servo motor is mounted on the front motor mounting seat, the driving pulley is mounted on the output shaft of the front servo motor, the driven pulley is mounted in the mounting hole on the base through the first bearing, the bearing seat is mounted in the center hole of the first bearing, the rear servo motor is mounted on the rear motor mounting seat, the lower end of the ball screw is mounted in the mounting hole on the driven pulley through the second bearing, and the bottom of the ball screw is connected to the output shaft of the rear servo motor, the linear guide is mounted on the pillar, the slider is mounted on the linear guide, the slide seat is mounted on the slider, the nut is mounted on the ball screw, the swing arm is mounted on the top surface of the slide seat, and the nozzle is mounted in the mounting hole on the swing arm. It realizes the printing of precise patterns through the nozzle, and the spraying efficiency is relatively high, but compared with screen printing, its efficiency is low, and the cost of using and consumables is high, which is not suitable for mass production of the same model.

[0004] Most of the existing transfers are manually operated, and some are mechanized, but they are still insufficient in terms of fine position movement control, especially for the transfer of cylinders, where deviations in the transfer position often occur, resulting in low transfer quality. Utility Model Content

[0005] In view of the above-mentioned defects of the prior art, the purpose of the utility model is to provide a cylindrical printing device, which can accurately transfer a given area on the surface of the cylinder and ensure the transfer efficiency and quality.

[0006] The purpose of the utility model is achieved through such technical solution:

[0007] A cylindrical printing device, comprising:

[0008] A workpiece placement unit, the upper surface of which is provided with a receiving groove for receiving a limiting cylindrical workpiece;

[0009] A moving unit is arranged directly above the workpiece placing unit;

[0010] The pad printing unit is arranged on the moving unit and moves horizontally just above the workpiece placing unit along with the movement of the moving unit;

[0011] The ink control unit is arranged on the moving unit and is located on one side of the pad printing unit. With the movement of the moving unit, the ink is scraped into an oil film of a predetermined thickness.

[0012] The ink containing unit is arranged directly below the ink control unit. The ink containing unit is provided with an etching plate. The control end of the ink control unit can contact the etching plate and scrape an oil film of a predetermined thickness on the upper surface of the etching plate.

[0013] Furthermore, the workpiece placement unit comprises:

[0014] A vertical displacement assembly, arranged vertically upward;

[0015] A vertical slide, arranged on the lifting end of the vertical displacement assembly;

[0016] The workpiece plane translation stage is horizontally arranged on the vertical slide;

[0017] The positioning accommodating member is arranged on the moving end of the workpiece plane displacement stage, and an accommodating groove for accommodating the limiting cylindrical workpiece is arranged on the upper surface.

[0018] Furthermore, the vertical displacement assembly comprises:

[0019] Workpiece support;

[0020] A Z-axis manual translation stage, the vertical color value is on the workpiece support; the vertical slide is installed on the lifting end of the Z-axis manual translation stage;

[0021] The Z-axis guide is arranged on the workpiece support in parallel with the Z-axis manual translation stage to limit the displacement of the moving end of the Z-axis manual translation stage.

[0022] Furthermore, the workpiece plane translation stage comprises two single-axis manual translation stages vertically staggered and stacked with each other;

[0023] The accommodating groove is a V-shaped groove; the positioning accommodating member is provided with a limiting rod for limiting the end surface of the cylindrical workpiece placed in the accommodating groove.

[0024] Furthermore, the pad printing unit comprises:

[0025] A pad printing cylinder is arranged vertically downward on the moving end of the moving unit;

[0026] A planar uniaxial displacement table is arranged on the lifting end of the pad printing cylinder; the displacement direction of the planar uniaxial displacement table is parallel to the movement direction of the moving unit;

[0027] The pad printing rubber head is vertically downwardly arranged on the moving end of the planar uniaxial translation stage.

[0028] Furthermore, the ink control unit comprises:

[0029] An ink cylinder is vertically downwardly arranged on the moving end of the moving unit;

[0030] A control frame, arranged on the lifting end of the ink cylinder;

[0031] An ink coating component is arranged on the control frame, and as the moving unit moves, the ink in the ink containing unit is coated on the etching plate with a predetermined thickness;

[0032] The ink scraping assembly is arranged on the control frame, and scrapes off the excess ink on the etching plate as the moving unit moves; the ink scraping assembly, the ink covering assembly and the pad printing unit are located on the same straight line; the ink scraping assembly is located between the ink covering assembly and the pad printing unit.

[0033] Furthermore, the ink covering component comprises:

[0034] The fixing plate is L-shaped, the head end of which is connected to the control frame, and the tail end is horizontally arranged in the direction opposite to the ink scraping assembly;

[0035] The film covering part has a middle portion hinged to the rear end of the fixed plate;

[0036] The ink roller is horizontally arranged and rotatably arranged at the lower part of the laminating member;

[0037] A spring, one end of which is connected to the upper part of the film-covering member, and the other end of which is connected to the tail end of the fixed plate, controls the lower part of the film-covering member to rotate clockwise around the middle part, and presses against the upper plate surface of the etching plate;

[0038] The limiting roller is arranged in the middle of the laminating member and below the fixed plate to limit the counterclockwise rotation angle of the laminating member; when the limiting roller abuts against the lower surface of the fixed plate, the level of the ink roller is lower than the level of the ink scraping assembly.

[0039] Furthermore, the ink scraping assembly comprises:

[0040] The two clamping plates are clamped together by screws and are also connected to the control frame by screws;

[0041] The ink scraper is arranged between the two clamping plates and is clamped and fixed by the two clamping plates; the lower end surface of the ink scraper is parallel to the upper surface of the etching plate.

[0042] Furthermore, the ink containing unit comprises:

[0043] Ink holder, set vertically;

[0044] The ink plane displacement stage is horizontally arranged on the ink support;

[0045] An ink box with an opening at the upper end is arranged on the moving end of the ink translation displacement stage; the length direction of the ink box is parallel to the moving direction of the moving unit; an etching plate is arranged inside the ink box; and a downward ink groove is arranged at one end of the ink box which is relatively far away from the pad printing unit.

[0046] Furthermore, the mobile unit comprises:

[0047] Mobile rack, vertical setting;

[0048] The single-axis movable electric cylinder is horizontally arranged on a movable frame, and a pad printing unit and an ink control unit are arranged on the movable end thereof.

[0049] Due to the adoption of the above technical solution, the utility model has the following advantages:

[0050] The use of automated pad printing operations greatly reduces the labor intensity of operators and improves operating efficiency; by adjusting the vertical displacement component, the printing needs of cylindrical workpieces with different diameters can be met, and by replacing the template in the ink tank, different types of printing operations can be achieved, thereby expanding its application range; the use of automated operations ensures the stability, reliability and consistency of printing.

[0051] Other advantages, objectives and features of the present invention will be described in the following description to some extent, and will be apparent to those skilled in the art based on the following examination and study, or may be taught from the practice of the present invention to some extent. BRIEF DESCRIPTION OF THE DRAWINGS

[0052] The accompanying drawings of the present utility model are as follows:

[0053] Figure 1 Schematic diagram of the three-dimensional structure of the cylindrical printing device in the embodiment;

[0054] Figure 2 It is a front view structural schematic diagram of a cylindrical printing device in the embodiment;

[0055] Figure 3 It is a left-side structural schematic diagram of the cylindrical printing device in the embodiment;

[0056] Figure 4 This is a schematic diagram of the top view of the cylindrical printing device in the embodiment;

[0057] Figure 5 for Figure 4 Schematic diagram of the structure at the AA section;

[0058] Figure 6 for Figure 5 The enlarged structural diagram at B in the middle;

[0059] Figure 7 for Figure 5 The enlarged structural diagram at C in the middle;

[0060] Figure 8 for Figure 5 Enlarged structural diagram at D in the middle.

[0061] In the figure: 111. workpiece support; 112. Z-axis manual translation stage; 113. Z-axis guide; 12. vertical slide; 13. workpiece plane translation stage; 14. positioning accommodation member; 141. accommodation groove; 21. moving frame; 22. single-axis moving electric cylinder; 31. pad printing cylinder; 32. plane single-axis translation stage; 33. pad printing rubber head; 41. ink cylinder; 42. control frame; 431. fixed plate; 432. coating member; 433. ink roller; 434. spring; 435. limiting roller; 441. clamping plate; 442. ink scraper; 51. ink support; 52. ink plane translation stage; 53. ink box; 54. etching plate; 55. ink tank; 6. workpiece. DETAILED DESCRIPTION

[0062] The utility model is further described below in conjunction with the accompanying drawings and embodiments.

[0063] Example:

[0064] like Figures 1 to 8 As shown, a cylindrical printing device comprises:

[0065] The workpiece placement unit has an upper surface provided with a receiving groove 141 for receiving the limiting cylindrical workpiece 6;

[0066] A moving unit is arranged directly above the workpiece placing unit;

[0067] The pad printing unit is arranged on the moving unit and moves horizontally just above the workpiece placing unit along with the movement of the moving unit;

[0068] The ink control unit is arranged on the moving unit and is located on one side of the pad printing unit. With the movement of the moving unit, the ink is scraped into an oil film of a predetermined thickness.

[0069] The ink containing unit is arranged directly below the ink control unit. The ink containing unit is provided with an etching plate 54 . The control end of the ink control unit can contact the etching plate 54 and scrape an oil film of a predetermined thickness on the upper surface of the etching plate 54 .

[0070] In this embodiment, the workpiece placement unit includes:

[0071] A vertical displacement assembly, arranged vertically upward;

[0072] A vertical slide 12 is provided on the lifting end of the vertical displacement assembly;

[0073] The workpiece plane displacement table 13 is horizontally arranged on the vertical slide table 12;

[0074] The positioning accommodating member 14 is disposed on the moving end of the workpiece plane displacement platform 13 , and an accommodating groove 141 for accommodating the limiting cylindrical workpiece 6 is provided on the upper surface.

[0075] The height of the positioning accommodating member 14 can be adjusted by the vertical displacement assembly to adapt to cylindrical workpieces 6 of different diameters. The vertical slide 12 serves as a supporting table surface to ensure the stability of the workpiece plane displacement platform 13 .

[0076] In this embodiment, the vertical displacement component includes:

[0077] Workpiece support 111;

[0078] A Z-axis manual translation stage 112, the vertical color value is on the workpiece support 111; the vertical slide 12 is installed on the lifting end of the Z-axis manual translation stage 112;

[0079] The Z-axis guide 113 is arranged on the workpiece support 111 in parallel with the Z-axis manual translation stage 112 to guide and limit the displacement of the moving end of the Z-axis manual translation stage 112; the Z-axis guide 113 adopts a structure of a slider and a guide column.

[0080] The workpiece plane translation stage 13 comprises two single-axis manual translation stages vertically staggered and stacked with each other;

[0081] The accommodating groove 141 is a V-shaped groove; the positioning accommodating member 14 is provided with a limiting rod (not shown in the figure) for limiting the end surface of the cylindrical workpiece 6 placed in the accommodating groove 141.

[0082] The single-axis manual translation stage adopts a screw displacement device with a locking function.

[0083] In this embodiment, the pad printing unit includes:

[0084] The pad printing cylinder 31 is vertically downwardly arranged on the moving end of the moving unit;

[0085] A planar uniaxial displacement platform 32 is arranged on the lifting end of the pad printing cylinder 31; the displacement direction of the planar uniaxial displacement platform 32 is parallel to the movement direction of the moving unit;

[0086] The pad printing rubber head 33 is vertically downwardly arranged on the moving end of the planar uniaxial displacement stage 32 .

[0087] The planar uniaxial translation stage 32 also adopts a screw translation device with a locking function.

[0088] In this embodiment, the ink control unit includes:

[0089] An ink cylinder is vertically downwardly arranged on the moving end of the moving unit;

[0090] A control frame 42 is arranged on the lifting end of the ink cylinder 41;

[0091] An ink coating assembly is disposed on the control frame 42, and as the moving unit moves, the ink in the ink containing unit is coated on the etching plate 54 with a predetermined thickness;

[0092] The ink scraping assembly is arranged on the control frame 42, and scrapes off the excess ink on the etching plate 54 as the moving unit moves; the ink scraping assembly, the ink covering assembly and the pad printing unit are located on the same straight line; the ink scraping assembly is located between the ink covering assembly and the pad printing unit.

[0093] In this embodiment, the ink covering component includes:

[0094] The fixing plate 431 is L-shaped, with the head end connected to the control frame 42 and the tail end arranged horizontally in the direction opposite to the ink scraping assembly;

[0095] The film covering member 432 has a middle portion hinged to the rear end of the fixing plate 431;

[0096] The ink roller 433 is horizontally arranged and rotatably arranged at the lower part of the laminating member 432;

[0097] The spring 434 has one end connected to the upper part of the film member 432 and the other end connected to the tail end of the fixed plate 431, and controls the lower part of the film member 432 to rotate clockwise around the middle part and press against the upper plate surface of the etching plate 54;

[0098] The limiting roller 435 is arranged in the middle of the coating member 432 and below the fixed plate 431 to limit the counterclockwise rotation angle of the coating member 432; when the limiting roller 435 abuts against the lower surface of the fixed plate 431, the horizontal height of the ink roller is lower than the horizontal height of the ink scraping assembly.

[0099] The ink roller is pressed obliquely downward by the spring 434 to apply ink to the etching plate 54. At the same time, in order to prevent the ink cylinder from dropping too low and causing the ink scraper 442 of the ink scraper assembly to collide with the etching plate 54, resulting in damage to the etching plate 54 or the ink scraper, a limiting roller 435 is used to limit the force rising height of the ink roller 433, thereby protecting the etching plate 54 and the ink scraper.

[0100] In this embodiment, the ink scraping assembly includes:

[0101] The two clamping plates 441 are clamped together by screws and are also connected to the control frame 42 by screws;

[0102] The ink scraper 442 is disposed between the two clamping plates 441 and is clamped and fixed by the two clamping plates 441 ; the lower end surface of the ink scraper 442 is parallel to the upper surface of the etching plate 54 .

[0103] The ink scraper can be easily disassembled and replaced by the clamping plate 441 .

[0104] In this embodiment, the ink containing unit includes:

[0105] Ink holder, set vertically;

[0106] The ink plane displacement stage is horizontally arranged on the ink support 51;

[0107] The ink box 53 with an opening at the upper end is arranged on the moving end of the ink translation displacement stage; the length direction of the ink box is parallel to the moving direction of the moving unit; an etching plate 54 is arranged inside the ink box; and a downward ink groove 55 is arranged at one end of the ink box which is relatively far from the pad printing unit.

[0108] The ink tank is used to contain ink. The ink roller can apply enough ink in the ink tank 55 to the etching plate 54, and the excess ink can be scraped back to the ink tank 55 by the scraper to be reused.

[0109] In this embodiment, the mobile unit includes:

[0110] The mobile frame 21 is arranged vertically;

[0111] The single-axis movable electric cylinder 22 is horizontally arranged on the movable frame 21, and a pad printing unit and an ink control unit are arranged on the movable end thereof.

[0112] In the present embodiment, the cylindrical printing device is used as follows: according to the diameter of the cylindrical workpiece 6 to be transferred, a corresponding limit rod is installed on the positioning container 14, and the Z-axis manual displacement table 112, the workpiece plane displacement table 13, the ink plane displacement table 52 and the plane uniaxial displacement table 32 are manually adjusted to control the uniaxial moving electric cylinder 22 to move away from the workpiece support 111, and place the etching plate 54 into the ink box 53.

[0113] The workpiece 6 to be transferred is placed in the receiving groove 141 , and its end surface is abutted against the limiting rod to position the workpiece 6 .

[0114] The transfer cylinder is controlled to shorten, and the scraper leaves the timing plate; the ink cylinder 41 is controlled to extend, so that the ink roller 433 is located in the ink groove 55. Then the single-axis displacement electric cylinder is controlled to move toward the workpiece support 111, the ink roller and the ink groove 55 are pressed against each other, the fixed plate 431 rotates, and the ink roller presses the etching plate 54 downward to apply ink on the surface of the etching plate 54.

[0115] Then, the single-axis movable electric cylinder 22 is controlled to move away from the workpiece support 111 , and at this time, the scraper scrapes away the excess ink on the surface of the etching plate 54 until the ink roller 433 is located in the ink groove 55 again.

[0116] Then, the pad printing cylinder 31 is controlled to extend, the pad printing rubber head 33 and the etching plate 54 are pressed against each other, the pad printing rubber head 33 is stained with the pattern to be transferred, and then the pad printing cylinder 31 is controlled to shorten.

[0117] Then, the single-axis moving electric cylinder 22 is controlled to move toward the workpiece support 111. At this time, the action of the ink roller is the same as above, until the transfer rubber head is located directly above the workpiece 6 and stops. The transfer cylinder is controlled to produce, and the transfer rubber head and the cylindrical surface of the workpiece 6 are pressed against each other to transfer the pattern to the surface of the workpiece 6. In this way, the transfer of a workpiece 6 is completed, and then the pad printing cylinder 31 is controlled to shorten and the workpiece 6 can be taken out.

[0118] The above process can be repeated to complete the transfer of workpieces 6 in batches.

[0119] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the utility model rather than to limit it. Although the utility model has been described in detail with reference to the preferred embodiments, ordinary technicians in the field should understand that the technical solution of the utility model can be modified or replaced by equivalents without departing from the purpose and scope of the technical solution, which should be included in the scope of the claims of the utility model.

Claims

1. A cylindrical printing device, characterized in that: include, A workpiece placement unit, the upper surface of which is provided with a receiving groove for receiving a limiting cylindrical workpiece; A moving unit is arranged directly above the workpiece placing unit; The pad printing unit is arranged on the moving unit and moves horizontally just above the workpiece placing unit along with the movement of the moving unit; The ink control unit is arranged on the moving unit and is located on one side of the pad printing unit. With the movement of the moving unit, the ink is scraped into an oil film of a predetermined thickness. The ink containing unit is arranged directly below the ink control unit. The ink containing unit is provided with an etching plate. The control end of the ink control unit can contact the etching plate and scrape an oil film of a predetermined thickness on the upper surface of the etching plate.

2. The cylindrical printing device according to claim 1, characterized in that: The workpiece placement unit comprises: A vertical displacement assembly, arranged vertically upward; A vertical slide, arranged on the lifting end of the vertical displacement assembly; The workpiece plane translation stage is horizontally arranged on the vertical slide; The positioning accommodating member is arranged on the moving end of the workpiece plane displacement stage, and an accommodating groove for accommodating the limiting cylindrical workpiece is arranged on the upper surface.

3. The cylindrical printing device according to claim 2, characterized in that: The vertical displacement assembly comprises: Workpiece support; A Z-axis manual translation stage, the vertical color value is on the workpiece support; the vertical slide is installed on the lifting end of the Z-axis manual translation stage; The Z-axis guide is arranged on the workpiece support in parallel with the Z-axis manual translation stage to limit the displacement of the moving end of the Z-axis manual translation stage.

4. The cylindrical printing device according to claim 2, characterized in that: The workpiece plane translation stage comprises two single-axis manual translation stages vertically staggered and stacked with each other; The accommodating groove is a V-shaped groove; the positioning accommodating member is provided with a limiting rod for limiting the end surface of the cylindrical workpiece placed in the accommodating groove.

5. The cylindrical printing device according to claim 1, characterized in that: The pad printing unit comprises: A pad printing cylinder is arranged vertically downward on the moving end of the moving unit; A planar uniaxial displacement table is arranged on the lifting end of the pad printing cylinder; the displacement direction of the planar uniaxial displacement table is parallel to the movement direction of the moving unit; The pad printing rubber head is vertically downwardly arranged on the moving end of the planar uniaxial translation stage.

6. The cylindrical printing device according to claim 1, characterized in that: The ink control unit comprises: An ink cylinder is vertically downwardly arranged on the moving end of the moving unit; A control frame, arranged on the lifting end of the ink cylinder; An ink coating component is arranged on the control frame, and as the moving unit moves, the ink in the ink containing unit is coated on the etching plate with a predetermined thickness; The ink scraping assembly is arranged on the control frame, and scrapes off the excess ink on the etching plate as the moving unit moves; the ink scraping assembly, the ink covering assembly and the pad printing unit are located on the same straight line; the ink scraping assembly is located between the ink covering assembly and the pad printing unit.

7. The cylindrical printing device according to claim 6, characterized in that: The ink covering component comprises: The fixing plate is L-shaped, the head end of which is connected to the control frame, and the tail end is horizontally arranged in the direction opposite to the ink scraping assembly; The film covering part has a middle portion hinged to the rear end of the fixed plate; The ink roller is horizontally arranged and rotatably arranged at the lower part of the laminating member; A spring, one end of which is connected to the upper part of the film-covering member, and the other end of which is connected to the tail end of the fixed plate, controls the lower part of the film-covering member to rotate clockwise around the middle part, and presses against the upper plate surface of the etching plate; The limiting roller is arranged in the middle of the laminating member and below the fixed plate to limit the counterclockwise rotation angle of the laminating member; when the limiting roller abuts against the lower surface of the fixed plate, the level of the ink roller is lower than the level of the ink scraping assembly.

8. The cylindrical printing device according to claim 7, characterized in that: The ink scraping assembly comprises: The two clamping plates are clamped together by screws and are also connected to the control frame by screws; The ink scraper is arranged between the two clamping plates and is clamped and fixed by the two clamping plates; the lower end surface of the ink scraper is parallel to the upper surface of the etching plate.

9. The cylindrical printing device according to claim 8, characterized in that: The ink containing unit comprises: Ink holder, set vertically; The ink plane displacement stage is horizontally arranged on the ink support; An ink box with an opening at the upper end is arranged on the moving end of the ink translation displacement stage; the length direction of the ink box is parallel to the moving direction of the moving unit; an etching plate is arranged inside the ink box; and a downward ink groove is arranged at one end of the ink box which is relatively far from the pad printing unit.

10. The cylindrical printing device according to claim 1, characterized in that: The mobile unit comprises: Mobile rack, vertical setting; The single-axis movable electric cylinder is horizontally arranged on a movable frame, and a pad printing unit and an ink control unit are arranged on the movable end thereof.

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