Curved surface screen printing machine

Abstract

A curved surface screen printing machine belongs to the technical field of printing machines and comprises a workbench, a stand column is vertically installed at the top end of the workbench, a swing frame is rotatably arranged on the outer wall of the stand column, a fixing frame is installed on the right side of the upper surface of the swing frame, a blocking rod is vertically installed on the lower surface of the fixing frame, and a bottom plate is slidably arranged in an inner cavity of the swing frame. Fixing seats are vertically mounted on the front and rear sides of the top end of the bottom plate respectively, and mounting blocks are mounted at two ends of the outer wall of the rear fixing seat respectively. The printing stroke adjusting step is simple and convenient, bolts and nuts do not need to be disassembled repeatedly, the printing stroke can be adjusted by driving the positioning blocks to be embedded into or separated from the inner cavities of the positioning grooves in the corresponding positions, operation is faster, great convenience is brought to adjustment of the printing stroke, and the printing stroke adjusting efficiency is improved. And the final height of the bearing rod can be adjusted from the side wall, and under the condition that the top end of the bearing rod is not interfered, the supporting requirements of printing stocks with different diameters can be flexibly met.

Description

Technical Field

[0001] The utility model belongs to the technical field of printing machines, and in particular relates to a curved screen printing machine. Background Art

[0002] A screen printing machine is a machine that uses a screen printing plate for printing. It can be divided into flat screen printing machines, curved screen printing machines, rotary screen printing machines, etc. Among them, a flat curved screen printing machine is referred to as a curved screen printing machine. It is a method of printing a flat screen printing plate on a curved substrate (such as a sphere, cylinder, cylinder, etc.). During printing, the squeegee is fixed, the printing plate moves in the horizontal direction, and the substrate rotates with the printing plate.

[0003] When adjusting the printing stroke of the existing curved screen printing machine, it is necessary to manually unscrew the positioning screw on the outer wall of the bolt, move the position of the bolt, and then tighten the screw on the bolt again, thereby realizing the movement and positioning of the bolt position to achieve the adjustment of the printing stroke of the screen printing machine; the above-mentioned method of adjusting the printing stroke is relatively complicated, and it is necessary to repeatedly disassemble the bolts and nuts, which brings inconvenience to the printing operation. Utility Model Content

[0004] In view of the problem that the existing method of adjusting the printing stroke in the prior art is relatively complicated and requires repeated disassembly of bolts and nuts, which brings inconvenience to the printing operation, the utility model provides a curved screen printing machine, which has simple and convenient steps for adjusting the printing stroke, and does not require repeated disassembly of bolts and nuts. The printing stroke can be adjusted by driving the positioning block to be embedded in or out of the inner cavity of the positioning groove at the corresponding position, which is faster to operate and greatly facilitates the adjustment of the printing stroke. The specific technical scheme is as follows:

[0005] A curved screen printing machine, comprising a workbench, a column is vertically installed on the top of the workbench, a swing frame is rotatably arranged on the outer wall of the column, a fixed frame is installed on the right side of the upper surface of the swing frame, a gear lever is vertically installed on the lower surface of the fixed frame, a bottom plate is slidably arranged in the inner cavity of the swing frame, a printing plate is installed in the middle of the bottom plate, and fixed seats are vertically installed on the front and rear sides of the top of the bottom plate, wherein mounting blocks are respectively installed on the two ends of the outer wall of the rear fixed seat, a first limiting rod is fixedly installed between the two mounting blocks, a plurality of positioning grooves are equidistantly provided on the front side of the outer wall of the rear fixed seat, two groups of positioning components are slidably sleeved on the outer wall of the first limiting rod, and the two groups of positioning components are pluggable and embedded in the inner cavity of the positioning groove;

[0006] Each group of the positioning components includes a positioning block, which is pluggable and embedded in the inner cavity of one of the positioning grooves. The positioning block is connected to a moving seat through an elastic component. A slider is installed on the top of the moving seat, and the slider is slidably mounted on the outer wall of the first limiting rod. A second limiting rod is installed on the outer wall of the moving seat, and the second limiting rod and the gear rod are perpendicular to each other.

[0007] In the above technical solution, the elastic component includes a telescopic rod installed on the front side of the outer wall of the positioning block, a baffle is installed on the outer wall of the telescopic rod, and the baffle is connected to the inner wall of the movable seat, a spring is sleeved on the outer wall of the telescopic rod, and the two ends of the spring are respectively connected to the outer wall of the baffle and the outer wall of the positioning block, and the telescopic rod and the spring are slidably embedded in the inner cavity of the movable seat.

[0008] In the above technical solution, a toggle pin is vertically installed on the top of the positioning block.

[0009] In the above technical solution, a slide groove is provided on the side of the swing frame opposite to the outer wall of the bottom plate, a slide bar is slidably embedded in the inner cavity of the slide groove, and the slide bar is fixedly connected to the side wall of the fixing seat.

[0010] In the above technical solution, a base is arranged on the right side of the upper surface of the workbench, a supporting seat is arranged on the top of the base so as to be movable and retractable, and two supporting rods parallel to each other are arranged on the top of the supporting seat.

[0011] In the above technical solution, the inner cavity of the base is respectively vertically provided with a vertical rod and a screw rod, and the screw rod is rotatably connected to the inner wall of the base, the vertical rod and the outer wall sliding sleeve of the screw rod are provided with a lifting seat, and the lifting seat is threadedly connected to the screw rod, and the top end of the lifting seat is fixedly connected to the lower surface of the supporting seat.

[0012] In the above technical solution, a first bevel gear is installed on the outer wall of the screw, a drive rod is vertically and rotatably provided on the side wall of the base, a second bevel gear is installed on the end of the drive rod, and the second bevel gear is meshedly connected with the outer wall of the first bevel gear.

[0013] Compared with the prior art, the curved screen printing machine of the utility model has the following beneficial effects:

[0014] 1. In view of the problem that the existing method of adjusting the printing stroke is relatively complicated and requires repeated disassembly of bolts and nuts, which brings inconvenience to the printing operation, the utility model can drive the positioning block to be embedded in or out of the inner cavity of the positioning groove through the cooperation of the positioning block, the toggle pin, the telescopic rod, the baffle and the spring, so as to freely adjust the positions of the two positioning blocks according to the printing stroke, thereby realizing the adjustment of the printing stroke. The utility model has simple and convenient steps for adjusting the printing stroke, and there is no need to repeatedly disassemble the bolts and nuts. The printing stroke can be adjusted by driving the positioning block to be embedded in or out of the inner cavity of the positioning groove at the corresponding position, which is faster to operate and brings great convenience to the adjustment of the printing stroke.

[0015] Second, the utility model realizes the lifting and moving of the first bevel gear by setting a vertical rod, a screw rod, and a lifting seat, and can adjust the height of the supporting rod to enable the supporting rod to adapt to the support requirements of substrates of different diameters;

[0016] 3. The utility model can drive the screw rod to rotate from the side wall by means of the driving rod, the second bevel gear and the first bevel gear, without causing interference to the supporting rod and the supporting seat arranged at the top of the base. The utility model can adjust the final height of the supporting rod from the side wall, and flexibly adapt to the support requirements of substrates of different diameters without interference to the top of the supporting rod;

[0017] In summary, the utility model has simple and convenient steps for adjusting the printing stroke. There is no need to repeatedly disassemble the bolts and nuts. The printing stroke can be adjusted by driving the positioning block to embed or disengage from the inner cavity of the positioning groove at the corresponding position. The operation is faster, which greatly facilitates the adjustment of the printing stroke. The final height of the support rod can be adjusted from the side wall. While ensuring that the top of the support rod is not interfered with, it can flexibly adapt to the support requirements of substrates of different diameters. BRIEF DESCRIPTION OF THE DRAWINGS

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

[0019] Figure 2 It is a partial structural schematic diagram of the positioning groove of the utility model;

[0020] Figure 3 This is a structural schematic diagram of the utility model in which the baffle and the movable seat are separated;

[0021] Figure 4 It is a structural schematic diagram of the base of the utility model;

[0022] Figure 5 It is a schematic diagram of the cross-sectional structure of the base of the utility model;

[0023] Figure 6 It is a structural schematic diagram of the support rod of the utility model;

[0024] Figures 1 to 6 Among them, 1, workbench, 2, column, 3, swing frame, 4, fixed frame, 5, gear lever, 6, bottom plate, 7, printing plate, 8, fixed seat, 9, slide bar, 10, slide groove, 11, mounting block, 12, first limit rod, 13, positioning groove, 14, positioning block, 15, toggle pin, 16, telescopic rod, 17, baffle, 18, spring, 19, moving seat, 20, slider, 21, second limit rod, 22, base, 23, pole, 24, screw, 25, lifting seat, 26, supporting seat, 27, supporting rod, 28, first bevel gear, 29, second bevel gear, 30, driving rod. DETAILED DESCRIPTION

[0025] The following is a combination of specific implementation cases and attached Figures 1 to 6 The present invention is further described below, but the present invention is not limited to these embodiments.

[0026] See also Figures 1 to 6 As shown, a curved screen printing machine comprises a workbench 1, a column 2 is vertically installed on the top of the workbench 1, a swing frame 3 is rotatably arranged on the outer wall of the column 2, a fixed frame 4 is installed on the right side of the upper surface of the swing frame 3, a gear lever 5 is vertically installed on the lower surface of the fixed frame 4, a bottom plate 6 is slidably arranged in the inner cavity of the swing frame 3, a printing plate 7 is installed in the middle of the bottom plate 6, and a fixed seat 8 is vertically installed on the front and rear sides of the top of the bottom plate 6, wherein mounting blocks 11 are respectively installed at both ends of the outer wall of the rear side fixed seat 8, a first limiting rod 12 is fixedly installed between the two mounting blocks 11, a plurality of positioning grooves 13 are equidistantly provided on the front side of the outer wall of the rear side fixed seat 8, and the outer wall of the first limiting rod 12 is slidably sleeved with two groups of positioning components, and the two groups of positioning components are pluggable and embedded in the inner cavity of the positioning groove 13, and the printing stroke can be adjusted by adjusting the spacing between the two positioning components.

[0027] See also Figures 1 to 3As shown, each group of positioning components includes a positioning block 14, which is pluggable and embedded in the inner cavity of one of the positioning grooves 13. When the positioning block 14 is embedded in the inner cavity of the positioning groove 13, the position of the positioning component is stably limited. The positioning block 14 is connected to a moving seat 19 through an elastic component. A slider 20 is installed on the top of the moving seat 19, and the slider 20 is slidably sleeved on the outer wall of the first limiting rod 12. A second limiting rod 21 is installed on the outer wall of the moving seat 19, and the second limiting rod 21 is perpendicular to the gear rod 5. The slider 20 can move along the outer wall of the first limiting rod 12 under the action of external force to adjust the position of the moving seat 19 and the second limiting rod 21. By adjusting the position of the second limiting rod 21, the length of the printing stroke can be adjusted, that is, the printing stroke can be adjusted; the elastic component includes a telescopic rod 16 installed on the front side of the outer wall of the positioning block 14, and the telescopic rod 16 It is composed of two mutually sleeved thick rods and thin rods. The thin rod can slide along the inner cavity of the thick rod under the action of external force to realize the flexible extension and retraction of the overall length of the telescopic rod 16. A baffle 17 is installed on the outer wall of the telescopic rod 16, and the baffle 17 is connected to the inner wall of the moving seat 19. A spring 18 is sleeved on the outer wall of the telescopic rod 16, and the two ends of the spring 18 are respectively connected to the outer wall of the baffle 17 and the outer wall of the positioning block 14. The telescopic rod 16 and the spring 18 are slidably embedded in the inner cavity of the moving seat 19. When the external force drives the positioning block 14 to disengage from the inner cavity of the corresponding positioning groove 13 at this time, the telescopic rod 16 is contracted in the process, and the spring 18 is forced to compress, thereby removing the external force driving the positioning block 14. At this time, the elastic force of the spring 18 is used to cause the telescopic rod 16 to extend, and the positioning block 14 is pushed to be re-embedded into the inner cavity of the corresponding positioning groove 13 at this time, thereby realizing the movement and positioning of the positioning block 14.

[0028] In addition, in order to conveniently adjust the position of the positioning block 14 , a toggle pin 15 is vertically installed at the top of the positioning block 14 . By driving the toggle pin 15 , the positioning block 14 can be flexibly and conveniently driven out of the inner cavity of the positioning slot 13 .

[0029] A slide groove 10 is provided on the side opposite to the outer wall of the swing frame 3 and the base plate 6. A slide bar 9 is slidably embedded in the inner cavity of the slide groove 10, and the slide bar 9 is fixedly connected to the side wall of the fixed seat 8. When the base plate 6 moves, it can drive the slide bar 9 to move along the inner cavity of the slide groove 10, thereby realizing stable printing during the movement of the base plate 6.

[0030] See also Figures 4 to 6 As shown, a base 22 is provided on the right side of the upper surface of the workbench 1, and a supporting seat 26 is provided on the top of the base 22 so as to be able to rise and fall. Two supporting rods 27 parallel to each other are provided on the top of the supporting seat 26. The printing material is placed on the upper surface of the two supporting rods 27 parallel to each other, so that the printing material can be supported without affecting the rotation of the printing material.

[0031] The inner cavity of the base 22 is respectively vertically provided with a vertical rod 23 and a screw rod 24, and the screw rod 24 is rotatably connected to the inner wall of the base 22 through a bearing, and the vertical rod 23 and the outer wall of the screw rod 24 are slidingly sleeved with a lifting seat 25, and the lifting seat 25 is threadedly connected to the screw 24, and the top of the lifting seat 25 is fixedly connected to the lower surface of the supporting seat 26. When the screw rod 24 rotates, the lifting seat 25 can be driven to move, and then the supporting seat 26 can be driven to move, so as to adjust the height of the supporting rod 27 and the substrate; a first bevel gear 28 is installed on the outer wall of the screw rod 24, and a driving rod 30 is vertically and rotatably provided on the side wall of the base 22, and a second bevel gear 29 is installed on the end of the driving rod 30, and the second bevel gear 29 is meshed and connected with the outer wall of the first bevel gear 28. , driving the driving rod 30 to drive the second bevel gear 29 to rotate, the second bevel gear 29 drives the first bevel gear 28 meshing with the outer wall to rotate, and the first bevel gear 28 drives the screw rod 24 to rotate, so as to prompt the lifting seat 25 threadedly sleeved on the outer wall of the screw rod 24 to move in the vertical direction along the outer wall of the screw rod 24 and the vertical rod 23, thereby realizing the height adjustment of the supporting seat 26 and the supporting rod 27 installed on the top of the lifting seat 25. By adjusting the height of the supporting rod 27, the height of the substrate placed on the top of the supporting rod 27 is adjusted, and the final height adjustment of the supporting rod 27 can be realized from the side wall. Under the condition that the top of the supporting rod 27 is not interfered, it is flexibly adapted to the support requirements of substrates of different diameters.

[0032] The principle of adjusting the printing stroke and the height of the substrate by a curved screen printer in this embodiment is as follows:

[0033] When the printing stroke needs to be adjusted, the toggle pin 15 is driven to drive the positioning block 14 to disengage from the inner cavity of the corresponding positioning groove 13 at this time. In this process, the telescopic rod 16 is contracted and the spring 18 is forced to compress. After the slider 20 is pushed to move to a suitable position along the outer wall of the first limit rod 12, the external force driving the toggle pin 15 and the positioning block 14 is removed. At this time, the elastic force of the spring 18 causes the telescopic rod 16 to extend and pushes the positioning block 14 to be re-embedded into the inner cavity of the corresponding positioning groove 13 at this time, thereby realizing the movement and positioning of the positioning block 14. By adjusting the relative distance between the two positioning blocks 14, the printing stroke can be adjusted;

[0034] By pulling the bottom plate 6 to the right, the printing plate 7, the fixing seat 8 and the two second limiting rods 21 after adjusting the position are synchronously moved to the right. When the second limiting rod 21 on the left side moves to fit the outer wall of the stop rod 5, it cannot continue to move to the right side due to the blocking effect of the stop rod 5, thereby realizing that the bottom plate 6 and the printing plate 7 complete a printing stroke, and under the effect of the scraper arranged on the outer wall of the fixing frame 4, the outer wall of the substrate is printed in a circular manner.

[0035] When the height of the substrate needs to be adjusted, the driving rod 30 is driven to drive the second bevel gear 29 to rotate, and the second bevel gear 29 drives the first bevel gear 28 meshing with the outer wall to rotate, and the first bevel gear 28 drives the screw rod 24 to rotate, so as to cause the lifting seat 25 threadedly sleeved on the outer wall of the screw rod 24 to move in the vertical direction along the outer wall of the screw rod 24 and the vertical rod 23, thereby realizing the adjustment of the height of the supporting seat 26 and the supporting rod 27 installed on the top of the lifting seat 25. By adjusting the height of the supporting rod 27, the height of the substrate placed on the top of the supporting rod 27 can be adjusted; and the final height adjustment of the supporting rod 27 can be realized from the side wall, and the support requirements of substrates of different diameters can be flexibly adapted without interference with the top of the supporting rod 27.

[0036] The utility model has simple and convenient steps for adjusting the printing stroke. There is no need to repeatedly disassemble the bolts and nuts. The printing stroke can be adjusted by driving the positioning block 14 to embed or disengage from the inner cavity of the positioning groove 13 at the corresponding position. The operation is faster and greatly facilitates the adjustment of the printing stroke. The final height of the supporting rod 27 can be adjusted from the side wall. Under the condition that the top of the supporting rod 27 is not interfered with, it can flexibly adapt to the support requirements of printed products with different diameters.

[0037] The above description is only the preferred embodiment of the utility model, and is not intended to limit the utility model. For those skilled in the art, the utility model can have various modifications and changes. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model shall be included in the protection scope of the utility model.

Claims

1. A curved screen printing machine, comprising a workbench (1), a column (2) being vertically mounted on the top of the workbench (1), a swing frame (3) being rotatably mounted on the outer wall of the column (2), a fixed frame (4) being mounted on the right side of the upper surface of the swing frame (3), characterized in that: A shift rod (5) is vertically mounted on the lower surface of the fixed frame (4); a bottom plate (6) is slidably mounted in the inner cavity of the swing frame (3); a printing plate (7) is mounted in the middle of the bottom plate (6); a fixed seat (8) is vertically mounted on the front and rear sides of the top of the bottom plate (6); mounting blocks (11) are mounted on both ends of the outer wall of the rear fixed seat (8); a first limiting rod (12) is fixedly mounted between the two mounting blocks (11); a plurality of positioning grooves (13) are equidistantly formed on the front side of the outer wall of the rear fixed seat (8); two groups of positioning components are slidably sleeved on the outer wall of the first limiting rod (12), and the two groups of positioning components are pluggable and embedded in the inner cavity of the positioning groove (13); Each group of the positioning components includes a positioning block (14), and the positioning block (14) is pluggable and embedded in the inner cavity of one of the positioning grooves (13). The positioning block (14) is connected to a movable seat (19) through an elastic component. A slider (20) is installed on the top of the movable seat (19), and the slider (20) is slidably mounted on the outer wall of the first limiting rod (12). A second limiting rod (21) is installed on the outer wall of the movable seat (19), and the second limiting rod (21) and the gear rod (5) are perpendicular to each other.

2. A curved screen printing machine according to claim 1, characterized in that: The elastic component comprises a telescopic rod (16) installed on the front side of the outer wall of the positioning block (14); a baffle (17) is installed on the outer wall of the telescopic rod (16), and the baffle (17) is connected to the inner wall of the movable seat (19); a spring (18) is sleeved on the outer wall of the telescopic rod (16), and two ends of the spring (18) are respectively connected to the outer wall of the baffle (17) and the outer wall of the positioning block (14); the telescopic rod (16) and the spring (18) are slidably embedded in the inner cavity of the movable seat (19).

3. A curved screen printing machine according to claim 2, characterized in that: A toggle pin (15) is vertically mounted on the top of the positioning block (14).

4. The curved screen printing machine according to claim 1, characterized in that: A slide groove (10) is provided on the side opposite to the outer wall of the swing frame (3) and the bottom plate (6), a slide bar (9) is slidably embedded in the inner cavity of the slide groove (10), and the slide bar (9) is fixedly connected to the side wall of the fixed seat (8).

5. The curved screen printing machine according to claim 1, characterized in that: A base (22) is arranged on the right side of the upper surface of the workbench (1), a supporting seat (26) is arranged at the top of the base (22) and can be lifted and moved, and two supporting rods (27) parallel to each other are arranged at the top of the supporting seat (26).

6. The curved screen printing machine according to claim 5, characterized in that: The inner cavity of the base (22) is respectively vertically provided with a vertical rod (23) and a screw rod (24), and the screw rod (24) is rotatably connected to the inner wall of the base (22), and the vertical rod (23) and the outer wall of the screw rod (24) are slidably sleeved with a lifting seat (25), and the lifting seat (25) is threadedly connected to the screw rod (24), and the top end of the lifting seat (25) is fixedly connected to the lower surface of the supporting seat (26).

7. The curved screen printing machine according to claim 6, characterized in that: A first bevel gear (28) is mounted on the outer wall of the screw rod (24); a driving rod (30) is vertically and rotatably mounted on the side wall of the base (22); a second bevel gear (29) is mounted on the end of the driving rod (30), and the second bevel gear (29) is meshingly connected with the outer wall of the first bevel gear (28).

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