Printing reinforcing device of filter screen printing machine

Abstract

The utility model relates to a printing reinforcing device of a filter screen printing machine. The printing reinforcing device comprises a rack, a supporting mechanism and an adjusting mechanism. The supporting mechanism comprises a lifting driving assembly and a rolling supporting assembly, the rolling supporting assembly comprises an upper adjusting block and a lower mounting seat, and the upper adjusting block and the lower mounting seat are matched through an arc-shaped surface to achieve angle adjustment and are locked through an adjusting mechanism. And the connection stability of the upper adjusting block and the lower mounting seat is enhanced through a second dovetail groove and a second dovetail block. The position of the roller assembly can be accurately adjusted. The lifting driving assembly achieves lifting of the rolling wheel assembly through a servo motor and a second lead screw. The rack is further provided with an auxiliary reinforcing mechanism, a reinforcing disc is controlled to move front and back through a fourth air cylinder to adapt to filters of different specifications, and the position of the fourth air cylinder is adjustable. The whole device improves the accuracy and efficiency of filter printing reinforcement.

Description

Technical Field

[0001] The utility model particularly relates to a printing reinforcement device of a filter screen printing machine. Background Art

[0002] A screen printing machine is a machine that uses a silk screen for printing. It is a type of printing machine. The screen printing machine can be used for printing on cylindrical surfaces. During printing, the silk screen plate moves horizontally and the substrate rotates with the silk screen plate.

[0003] For example, the Chinese utility model patent document with publication number "CN213891730U" discloses a printing reinforcement mechanism for a screen printer, which is mainly composed of a workbench, a fixing assembly, a supporting assembly, a fourth cylinder for lifting the workbench, an auxiliary reinforcement mechanism, etc. The fixing assembly is composed of multiple positioning seats, a second guide rod, a supporting plate, and a roller. The supporting assembly is composed of a supporting rod, a fourth cylinder mounting plate, and an assembly plate. The auxiliary reinforcement mechanism includes a reinforcement plate, a supporting frame, and a supporting rod. Figure 2 、 3 The connection relationship between the above components can be roughly seen. Figure 1 Disclosed is a schematic structure of a screen printer for printing on filters.

[0004] The above printing reinforcement mechanism has the following defects:

[0005] First, the fixing assembly cannot be adjusted to accommodate angular or lateral adjustments. Paragraph 0009 of the disclosure document indicates that the second guide rod in the fixing assembly is used to ensure the locating seats are aligned along the same axis, and is not intended to adjust the fixing assembly's position.

[0006] Secondly, the design of the auxiliary reinforcement mechanism is unreasonable, and the reinforcement plate cannot move forward and backward. Figure 2 It can be clearly seen that "the reinforcement disc, under the action of the support rod, abuts the axial end face of the product." The auxiliary reinforcement mechanism does not contain any mechanism to drive the reinforcement disc or support rod to move laterally, but the reinforcement disc remains against the end face of the filter. Therefore, when the filter reaches the reinforcement disc position or when it detaches from the reinforcement disc, a large force is required. The reinforcement disc will scrape the end of the filter, causing great damage to the filter and causing it to fail quality inspection. Therefore, the design of this auxiliary reinforcement mechanism is unreasonable and cannot meet actual production needs. Utility Model Content

[0007] The technical problem to be solved by the present invention is to address the deficiencies of the above-mentioned existing technologies and provide a printing reinforcement device for a filter screen printing machine. An upper adjustment block is designed to support a roller assembly, and an angle adjustment function is achieved by cooperating with the second curved surface below the upper adjustment block and the first curved surface of the lower mounting seat.

[0008] To achieve the above objectives, the present invention provides the following technical solutions:

[0009] The printing reinforcement device of the filter screen printing machine includes a frame, on which a support mechanism for supporting the side of the filter is installed, and the support mechanism includes a lifting drive assembly and a rolling support assembly linked to the lifting drive assembly, and is characterized in that: the rolling support assembly includes an upper adjusting block and a lower mounting seat linked to the lifting drive assembly, and a roller assembly is linked above the upper adjusting block, the upper end of the lower mounting seat is provided with a first curved surface, and the lower end of the upper adjusting block is provided with a second curved surface adapted to the first curved surface, and an adjustment mechanism is provided between the upper adjusting block and the lower mounting seat, which can control the upper adjusting block to rotate relative to the lower mounting seat or lock the upper adjusting block relative to the lower mounting seat.

[0010] Using this technical solution, the upper adjustment block supports the roller assembly, and angle adjustment is achieved through the second curved surface below the upper adjustment block, which cooperates with the first curved surface of the lower mounting seat. The lower mounting seat serves as the support base for the upper adjustment block, and the first curved surface of the lower mounting seat provides a stable rotational track for the upper adjustment block, allowing for smooth angle adjustment. Furthermore, the lower mounting seat cooperates with the adjustment mechanism, and once angle adjustment is complete, the upper adjustment block is secured. The curved surface design reduces friction and wear during rotation.

[0011] The adjustment mechanism includes an adjusting rod, a rack is provided in the middle of the second arc-shaped surface, the lower mounting seat is provided with a strip mounting hole distributed below the rack, the adjusting rod is hinged in the strip mounting hole, the side wall of the strip mounting hole is provided with a second opening corresponding to the rack, the adjusting rod is provided with a threaded section corresponding to the second opening, the adjusting rod is engaged with the rack through the threaded section, and the side of the upper adjustment block is threadedly connected to a limiting pin.

[0012] To adjust the angle, first loosen the limit pin and then rotate the adjustment rod. The adjustment rod hinges within the bar-shaped mounting hole. The threaded section on the adjustment rod engages the rack on the second curved surface. Driven by the threaded section, the rack rotates, and the upper adjustment block (via the second curved surface contacting the first curved surface of the lower mounting seat) rotates relative to the lower mounting seat, thereby adjusting the support angle of the roller assembly. Once the adjustment is complete, tighten the limit pin to maintain a stable support angle for the roller assembly. The bar-shaped mounting hole allows the adjustment rod to rotate freely within a certain range, while the second opening ensures smooth engagement between the threaded section and the rack.

[0013] The printing reinforcement device of the above-mentioned filter screen printing machine can be further configured as follows: the end of the adjusting rod extends out of the lower mounting seat, and the end of the adjusting rod is provided with a handwheel with an outer diameter larger than the outer diameter of the adjusting rod; the side of the upper adjusting block is provided with a scale mark, and the side of the lower mounting seat is provided with an angle pointing arrow corresponding to the scale mark.

[0014] Using this technical solution, the adjustment rod is lengthened and extended beyond the lower mounting base, and a handwheel is added, allowing the operator to directly grasp and rotate it, saving effort and making control of the adjustment rod easier. The addition of graduated markings and arrows allows the operator to quickly adjust the roller assembly's support angle as needed and to check in real time whether the desired position has been achieved. This not only improves adjustment accuracy and efficiency but also prevents angle deviations caused by misoperation.

[0015] The printing reinforcement device of the above-mentioned filter screen printing machine can be further configured as follows: a second dovetail groove is provided in the middle of the second curved surface, and both sides of the second dovetail groove are inclined toward the middle of the second dovetail groove; a second dovetail block adapted to the second dovetail groove is provided in the middle of the first curved surface, and the second dovetail groove and the second dovetail block both maintain an arc consistent with the second curved surface.

[0016] The above-mentioned technical solution, combining the curved surface with the second dovetail groove structure, enhances the stability of the upper adjustment block during angle adjustment, prevents the upper adjustment block from shifting left or right, and improves angle adjustment accuracy. Furthermore, the design of the second dovetail groove and the second dovetail block enhances the stability of the connection between the upper adjustment block and the lower mounting base.

[0017] The printing reinforcement device of the above-mentioned filter screen printing machine can be further configured as follows: the roller assembly includes a load-bearing plate fixedly connected to the upper adjustment block, at least one set of first slide rails is installed on the load-bearing plate, the first slide rail is linked to a first slider, the first slider and the first slide rail are detachably connected by bolts, a fixed seat is installed above the first slider, and a roller is hinged above the fixed seat.

[0018] With this technical solution, the load-bearing plate is fixedly connected to the upper adjustment block, serving as the basic support structure for the roller assembly, bearing the weight and downward pressure of the filter during the printing process. Furthermore, the operator can precisely adjust the roller position by loosening the bolts, moving the first slider on the first rail, and then re-tightening the bolts. This adjustment method is both flexible and highly accurate.

[0019] The printing reinforcement device of the above-mentioned filter screen printing machine can be further configured as follows: the lifting drive assembly includes a second screw rod and a servo motor linked to the second screw rod, the lower mounting seat is linked to a second nut sleeve, the second nut sleeve is sleeved on the outer periphery of the second screw rod and the two are threadedly linked, and the lower part of the lower mounting seat is also linked to a second guide rod, and the second guide rod is linked to a linear bearing fixed on the frame.

[0020] By adopting the above technical solution, the servo motor drives the second screw to rotate, and the second nut sleeve rises and falls along the axis of the second screw, thereby driving the lower mounting seat to rise and fall, that is, the roller assembly to rise and fall, to achieve separation and contact between the roller assembly and the filter, and avoid interference between the filter and the roller assembly.

[0021] The printing reinforcement device of the above-mentioned filter screen printing machine can be further configured as follows: the frame is also equipped with an auxiliary reinforcement mechanism for supporting the end of the filter, the auxiliary reinforcement mechanism includes a reinforcement plate and a fourth cylinder linked to the reinforcement plate, and the fourth cylinder can drive the reinforcement plate to move back and forth toward the end of the filter.

[0022] This solution incorporates a fourth cylinder to control the forward and backward movement of the reinforcement plate, resolving the problem of filter surface wear caused by the plate's inability to move forward and backward in existing technologies. Furthermore, by varying the extension of the fourth cylinder, the plate's operating position can be adjusted for different filter sizes and types.

[0023] The printing reinforcement device of the above-mentioned filter screen printing machine can be further configured as follows: the body of the fourth cylinder is linked to a second slider, a second slide rail distributed below the second slider is installed on the frame, and the second slide rail is provided with several groups of threaded holes arranged in sequence along the axial direction of the second slide rail, and the second slider is detachably connected to the second slide rail by screws.

[0024] By adopting the above technical solution, the position of the fourth cylinder can be adjusted according to actual conditions, that is, the initial position of the reinforcement plate can be adjusted.

[0025] The present invention will be described in further detail below with reference to the accompanying drawings and embodiments. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 This is a schematic diagram of the overall structure of an embodiment of the utility model;

[0027] Figure 2 This is an exploded schematic diagram of the upper adjustment block, lower mounting seat, etc. of an embodiment of the utility model;

[0028] Figure 3 This is a perspective diagram of the upper adjustment block, lower mounting seat, etc. of an embodiment of the utility model;

[0029] Figure 4 This is a schematic diagram of a lifting drive assembly according to an embodiment of the present utility model;

[0030] Figure 5 A schematic diagram of a roller assembly according to an embodiment of the present utility model;

[0031] Reference numerals: supporting mechanism a, upper adjusting block a1, lower mounting seat a2, first curved surface a3, second curved surface a4, rack a6, adjusting rod a7, bar-shaped mounting hole a9, second opening a10, threaded section a11, limit pin a12, scale mark a13, handwheel a14, arrow a15, second dovetail groove a16, second dovetail block a17, load-bearing plate a18, first slide rail a19, first slider a20, fixing seat a21, roller a22, servo motor a23, second nut sleeve a24, second screw rod a25, second guide rod a26; auxiliary reinforcement mechanism b, reinforcement plate b1, fourth cylinder b2, second slider b3, second slide rail b4. DETAILED DESCRIPTION

[0032] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0033] like Figures 1 to 5 The printing reinforcement device of the filter screen printing machine shown includes a frame on which a supporting mechanism a for supporting the side of the filter is installed, and the frame is also equipped with an auxiliary reinforcement mechanism b for supporting the end of the filter.

[0034] Support mechanism a includes a lifting drive assembly and a rolling support assembly linked to the lifting drive assembly. The rolling support assembly includes an upper adjustment block a1 and a lower mounting seat a2 linked to the lifting drive assembly. A roller assembly is linked above the upper adjustment block a1. The upper end of the lower mounting seat a2 is provided with a first curved surface a3, and the lower end of the upper adjustment block a1 is provided with a second curved surface a4 that matches the first curved surface a3. An adjustment mechanism is provided between the upper adjustment block a1 and the lower mounting seat a2, capable of controlling the rotation of the upper adjustment block a1 relative to the lower mounting seat a2 or locking the upper adjustment block a1 relative to the lower mounting seat a2. The upper adjustment block a1 is used to support the roller assembly, and the second curved surface a4 below the upper adjustment block a1 cooperates with the first curved surface a3 of the lower mounting seat a2 to achieve angle adjustment. The lower mounting seat a2 serves as a support for the upper adjustment block a1. The first curved surface a3 of the lower mounting seat a2 provides a stable rotational path for the upper adjustment block a1, allowing for smooth angle adjustment. Furthermore, the lower mounting seat a2 cooperates with the adjustment mechanism to secure the upper adjustment block a1 after angle adjustment is complete. The curved surface design reduces friction and wear during rotation.

[0035] The adjustment mechanism includes an adjustment rod a7, a rack a6 disposed in the middle of the second curved surface, and a strip-shaped mounting hole a9 disposed below rack a6 on the lower mounting base a2. The adjustment rod a7 is hinged within the strip-shaped mounting hole a9. The sidewall of the strip-shaped mounting hole a9 is provided with a second opening a10 corresponding to rack a6. The adjustment rod a7 is provided with a threaded section a11 corresponding to the second opening a10. The adjustment rod a7 engages with the rack a6 via the threaded section a11. The side edge of the upper adjustment block a1 is threadedly connected to a limit pin a12. To adjust the angle, the limit pin a12 is first released, and then the adjustment rod a7 is rotated. The adjustment rod a7 is hinged within the strip-shaped mounting hole a9, and the threaded section a11 on the adjustment rod a7 engages with the rack a6 on the second curved surface. Driven by threaded segment a11, rack a6 rotates, causing upper adjustment block a1 (via the contact of its second curved surface with the first curved surface of lower mounting block a2) to rotate relative to lower mounting block a2, thereby adjusting the roller assembly's support angle. Once adjustment is complete, tighten stop pin a12 to maintain a stable roller assembly support angle. The strip-shaped mounting hole a9 allows adjustment rod a7 to rotate freely within a certain range, while the second opening a10 ensures smooth engagement between threaded segment a11 and rack a6.

[0036] The end of the adjustment rod a7 extends beyond the lower mounting seat a2, and a handwheel a14 with a larger outer diameter is mounted on the end of the adjustment rod a7. A scale mark a13 is mounted on the side of the upper adjustment block a1, and an arrow a15 indicating the angle corresponding to the scale mark a13 is mounted on the side of the lower mounting seat a2. By lengthening the adjustment rod a7 and extending it beyond the lower mounting seat a2, and adding the handwheel a14, the adjustment rod a7 can be directly grasped and rotated, saving effort and making it easier to control the adjustment rod a7. The addition of the scale mark a13 and arrow a15 allows the operator to quickly adjust the support angle of the roller assembly as needed and to check in real time whether the desired position has been achieved. This not only improves the accuracy and efficiency of adjustment but also prevents angular deviations caused by misoperation.

[0037] A second dovetail groove a16 is located in the middle of the second curved surface a4, with both sides of the second dovetail groove a16 inclined toward the middle of the second dovetail groove a16. A second dovetail block a17 is located in the middle of the first curved surface a3, aligning with the second dovetail groove a16. Both the second dovetail groove a16 and the second dovetail block a17 maintain the same curvature as the second curved surface a4. The combination of the curved surface and the second dovetail groove a16 enhances the stability of the upper adjustment block a1 during angle adjustment, preventing it from drifting sideways and improving angle adjustment accuracy. Furthermore, the design of the second dovetail groove a16 and the second dovetail block a17 strengthens the connection stability between the upper adjustment block a1 and the lower mounting seat a2.

[0038] The roller a22 assembly includes a load-bearing plate a18 fixedly connected to the upper adjustment block a1. The load-bearing plate a18 is mounted with at least one set of first slide rails a19. The first slide rails a19 are linked to a first slider a20. The first slider a20 is detachably connected to the first slide rail a19 via bolts. A fixed seat a21 is mounted above the first slider a20, and a roller a22 is hingedly mounted above the fixed seat a21. The load-bearing plate a18 is fixedly connected to the upper adjustment block a1 and serves as the basic support structure for the roller a22 assembly, used to withstand the weight of the filter and the downward pressure generated during the printing process. Furthermore, the operator can precisely adjust the position of the roller a22 by loosening the bolts, moving the first slider a20 on the first slide rail a19, and then retightening the bolts. This adjustment method is not only flexible but also highly accurate.

[0039] The lift drive assembly includes a second screw a25 and a servo motor a23 linked to it. The lower mounting seat a2 is linked to a second nut sleeve a24, which is threadably attached to the outer periphery of the second screw a25. A second guide rod a26 is also linked to the underside of the lower mounting seat a2, which is linked to a linear bearing fixed to the frame. The servo motor a23 drives the second screw a25 to rotate, causing the second nut sleeve a24 to rise and fall along the axis of the second screw a25, thereby driving the lower mounting seat a2, and consequently, the roller a22 assembly, up and down. This allows the roller a22 assembly to separate and contact with the filter, preventing interference between the filter and the roller a22 assembly.

[0040] The auxiliary reinforcement mechanism b comprises a reinforcement plate b1 and a fourth cylinder b2, which is linked to the plate b1 and drives the plate b1 back and forth toward the filter end. The addition of the fourth cylinder b2 controls the forward and backward movement of the plate b1, resolving the problem of filter surface wear caused by the plate b1's immobility in the prior art. Furthermore, by varying the extension of the fourth cylinder b2, the working position of the plate b1 can be adjusted for different filter specifications and types.

[0041] The body of the fourth cylinder b2 is linked to a second slide block b3. A second rail b4 is mounted on the frame, located below the second slide block b3. The second rail b4 is provided with a plurality of threaded holes spaced axially along the second rail b4. The second slide block b3 is detachably connected to the second rail b4 via screws. Loosening the screws allows the position of the second slide block b3 on the second rail b4 to be adjusted, allowing the position of the fourth cylinder b2, and consequently, the initial position of the reinforcement plate b1, to be adjusted according to actual conditions.

[0042] Overall working principle:

[0043] The lifting drive assembly raises the entire rolling support assembly until roller a22 contacts the side of the filter. Simultaneously, the fourth cylinder b2 in the auxiliary reinforcement mechanism b moves the reinforcement plate b1 forward, securing the filter end. While the filter is being printed, roller a22 and reinforcement plate b1 support the filter. Once a set of filters is printed, the lifting drive assembly lowers the entire rolling support assembly, separating roller a22 from the filter. The fourth cylinder b2 also moves the reinforcement plate b1 backward, separating it from the filter.

Claims

1. A printing reinforcement device for a filter screen printer, comprising a frame, on which is mounted a support mechanism for supporting the sides of the filter, the support mechanism comprising a lifting drive assembly and a rolling support assembly linked to the lifting drive assembly, characterized in that: The rolling support assembly includes an upper adjusting block and a lower mounting seat linked to the lifting drive assembly. A roller assembly is linked above the upper adjusting block. The upper end of the lower mounting seat is provided with a first curved surface, and the lower end of the upper adjusting block is provided with a second curved surface adapted to the first curved surface. An adjusting mechanism is provided between the upper adjusting block and the lower mounting seat, which can control the upper adjusting block to rotate relative to the lower mounting seat or lock the upper adjusting block relative to the lower mounting seat.

2. The printing reinforcement device for a filter screen printer according to claim 1, characterized in that: The adjustment mechanism includes an adjusting rod, a rack is provided in the middle of the second arc-shaped surface, the lower mounting seat is provided with a strip mounting hole distributed below the rack, the adjusting rod is hinged in the strip mounting hole, the side wall of the strip mounting hole is provided with a second opening corresponding to the rack, the adjusting rod is provided with a threaded section corresponding to the second opening, the adjusting rod is engaged with the rack through the threaded section, and the side of the upper adjustment block is threadedly connected to a limiting pin.

3. The printing reinforcement device for a filter screen printer according to claim 2, characterized in that: The end of the adjusting rod extends out of the lower mounting seat, and the end of the adjusting rod is provided with a handwheel with an outer diameter larger than the outer diameter of the adjusting rod; the side of the upper adjusting block is provided with a scale mark, and the side of the lower mounting seat is provided with an angle pointing arrow corresponding to the scale mark.

4. The printing reinforcement device for a filter screen printer according to claim 3, characterized in that: A second dovetail groove is provided in the middle of the second curved surface, and both sides of the second dovetail groove are inclined toward the middle of the second dovetail groove. A second dovetail block adapted to the second dovetail groove is provided in the middle of the first curved surface, and the second dovetail groove and the second dovetail block both maintain an arc consistent with the second curved surface.

5. The printing reinforcement device for a filter screen printer according to claim 1, characterized in that: The roller assembly includes a load-bearing plate fixedly connected to the upper adjustment block, at least one set of first slide rails is installed on the load-bearing plate, the first slide rails are linked to a first slider, the first slider and the first slide rails are detachably connected by bolts, a fixed seat is installed above the first slider, and a roller is hinged above the fixed seat.

6. The printing reinforcement device for a filter screen printer according to claim 5, characterized in that: The lifting drive assembly includes a second screw rod and a servo motor linked to the second screw rod. The lower mounting seat is linked to a second nut sleeve. The second nut sleeve is sleeved on the outer periphery of the second screw rod and the two are threadedly linked. A second guide rod is also linked below the lower mounting seat. The second guide rod is linked to a linear bearing fixed on the frame.

7. The printing reinforcement device for a filter screen printer according to any one of claims 1 to 6, characterized in that: The frame is also equipped with an auxiliary reinforcement mechanism for supporting the end of the filter. The auxiliary reinforcement mechanism includes a reinforcement plate and a fourth cylinder linked to the reinforcement plate. The fourth cylinder can drive the reinforcement plate to move back and forth toward the end of the filter.

8. The printing reinforcement device for a filter screen printer according to claim 7, characterized in that: The body of the fourth cylinder is linked to a second slider, and a second slide rail distributed below the second slide rail is installed on the frame. The second slide rail is provided with a plurality of groups of threaded holes arranged in sequence along the axial direction of the second slide rail. The second slide rail is detachably connected to the second slide rail by screws.

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