A horizontally adjustable lifting table
By designing an adjustment component between the support plate and the worktable in the screen printing equipment, and using a joint cover, ball screw and threaded engagement mechanism to achieve lifting and horizontal adjustment of the worktable, the problem of small adjustment range of traditional screen printing equipment is solved, the height and horizontal requirements of different substrates are met, and the adjustment stability is improved.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- DONGGUAN LE MA GAO PRINTING MASCH CO LTD
- Filing Date
- 2025-06-22
- Publication Date
- 2026-06-26
AI Technical Summary
Traditional screen printing equipment has a small range of horizontal adjustment for the worktable, which cannot meet the height requirements of different substrates and substrate fixtures. In addition, the height of the screen arm is not adjustable, making it difficult to adjust the height and level of the worktable.
Design a horizontally adjustable lifting worktable. The lifting and horizontal adjustment are achieved through an adjustment component between the support plate and the worktable. The adjustment component includes a joint cover, a ball screw, a limit pin, and a threaded engagement mechanism. The threaded engagement mechanism drives the ball screw to move axially, thereby realizing the lifting and horizontal adjustment of the worktable.
It enables the lifting and lowering of the worktable and the horizontal adjustment between the four corners, meeting the height and level requirements of different printing substrates, and improving the adjustment range and stability.
Smart Images
Figure CN224407554U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the technical field of screen printing equipment worktables, specifically a horizontally adjustable lifting worktable. Background Technology
[0002] In screen printing equipment, the level of the worktable is particularly important. Different substrates and fixtures have varying heights, requiring the worktable to be adjustable in both height and level, with a significant range of horizontal adjustment. Traditional screen printing equipment has a limited range of horizontal adjustment, and in situations where the screen arm height is not adjustable, the worktable needs to simultaneously accommodate both height and level adjustments to meet application requirements, and even handle significant height differences.
[0003] To address this, those skilled in the art have proposed a horizontally adjustable lifting worktable. Utility Model Content
[0004] In view of the shortcomings of the existing technology, this utility model proposes a horizontally adjustable lifting worktable to realize the lifting of the worktable and the horizontal adjustment between the four corners of the worktable.
[0005] To achieve the above objectives, this utility model provides the following technical solution:
[0006] An adjustable lifting worktable includes a worktable and a support plate. An adjustment assembly is provided between the worktable and the support plate. The adjustment assembly is movably fixed to the support plate and allows the worktable to be adjusted in height or angle. Each arm adjustment assembly includes a joint cover, a ball end screw, a limiting pin, and a threaded engagement mechanism. The joint cover is fixedly connected to the worktable. The limiting pin passes laterally through the joint cover and the ball end screw, allowing the ball end screw to rotate relative to the joint cover about the limiting pin as an axis. The lower part of the ball end screw passes through the support plate and is connected to the threaded engagement mechanism. The threaded engagement mechanism is rotatably configured relative to the support plate and axially fixed, allowing the rotating threaded engagement mechanism to drive the ball end screw to move along its axial direction, thereby realizing the lifting adjustment of the worktable relative to the support plate.
[0007] Furthermore, the ball-end screw has an upper ball end and a lower threaded section, the ball end being rotatably accommodated within the joint cover, and the ball end having a through hole larger than the outer diameter of the limiting pin.
[0008] Furthermore, the joint cover has a cavity inside for accommodating the ball end of the ball screw, the bottom of the joint cover has an opening structure communicating with the cavity, and the opposite side of the joint cover has a pin hole for the limit pin to pass through.
[0009] Furthermore, the threaded engagement mechanism includes a nut assembly and a bearing assembly; the nut assembly includes at least two stop nuts connected to the threaded section of the ball head screw, one of which rotates upward to engage with the worktable or the joint cover for braking, and the other of which rotates downward to engage with the bearing assembly for braking.
[0010] Furthermore, the bearing assembly includes a handwheel, a flange nut, a flange nut fastener, a thrust bearing, a deep groove ball bearing, an anti-loosening stop, and a support plate connector, which are sequentially connected to the threaded section of the ball head screw. The handwheel is fixedly connected to the flange nut and the flange nut fastener. The inner diameters of the thrust bearing and the deep groove ball bearing are fitted to the outer diameter of the lower section of the flange nut fastener. The anti-loosening stop is fixedly connected to the flange nut fastener. The inner diameter of the support plate connector is fitted to the outer diameter of the thrust bearing and the deep groove ball bearing, and the upper end face of the support plate connector is fixedly connected to the bottom of the support plate.
[0011] Furthermore, the workbench is a single-board structure workbench.
[0012] Furthermore, the workbench is a composite structure workbench composed of a tabletop and a base. The tabletop surface is provided with suction holes for adsorbing objects and / or positioning grooves for fixing objects. The adjacent sides of the composite structure workbench are provided with knob adjustment components, and the front side of the composite structure workbench is provided with a start / stop safety device.
[0013] Furthermore, the base is provided with a through hole through which the threaded section of the ball head screw passes, wherein the inner diameter of the through hole is larger than the outer diameter of the threaded section of the ball head screw, and the inner diameter of the through hole is smaller than the diameter of the ball head end, so that the ball head screw is suspended on the base.
[0014] Compared with existing technologies, it has the following advantages:
[0015] This horizontally adjustable lifting worktable includes a worktable, a support plate, and multiple outrigger adjustment assemblies. The outrigger adjustment assemblies are located between the worktable and the support plate, and include a joint cover, a ball-end screw, a limiting pin, and a threaded engagement mechanism. The joint cover is fixedly connected to the worktable, and the limiting pin passes laterally through the joint cover and the ball-end screw, allowing the ball-end screw to rotate relative to the joint cover about the limiting pin as an axis, thereby achieving horizontal adjustment of the worktable. The lower part of the ball-end screw passes through the support plate and connects to the threaded engagement mechanism. The threaded engagement mechanism is rotatably mounted relative to the support plate and axially fixed, allowing the rotating threaded engagement mechanism to drive the ball-end screw to move along its axial direction, thereby achieving lifting and lowering adjustment of the worktable relative to the support plate. Attached Figure Description
[0016] Figure 1 This is a structural diagram of the horizontally adjustable lifting worktable according to Embodiment 1 of this utility model;
[0017] Figure 2 This is a front view structural diagram of the outrigger adjustment assembly of this utility model;
[0018] Figure 3 This is a structural diagram of the outrigger adjustment assembly of this utility model from an elevation view.
[0019] Figure 4 This is a side view structural diagram of the outrigger adjustment assembly of this utility model;
[0020] Figure 5 This is an exploded view of the outrigger adjustment assembly of this utility model;
[0021] Figure 6 This is a structural diagram of the horizontally adjustable lifting worktable according to Embodiment 2 of this utility model;
[0022] Figure 7 This is a side view of the horizontally adjustable lifting worktable according to Embodiment 2 of this utility model;
[0023] Figure 8 This is a top view of the horizontally adjustable lifting worktable of Embodiment 2 of this utility model.
[0024] In the diagram: 1. Workbench; 2. Support arm adjustment assembly; 3. Support plate; 4. Knob adjustment assembly; 5. Start / stop safety device; 10. Platform; 11. Base; 20. Joint cover; 21. Ball end screw; 22. Limit pin; 23. Stop nut; 24. Handwheel; 25. Flange nut; 26. Flange nut fastener; 27. Surface bearing; 28. Deep groove ball bearing; 29. Anti-detachment stop; 30. Support plate connector; 100. Suction hole; 110. Through hole; 200. Opening structure; 210. Ball end; 211. Threaded section; 212. Through hole. Detailed Implementation
[0025] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0026] Example 1: Please refer to Figures 1 to 5A horizontally adjustable lifting worktable is provided, including a worktable 1 and a support plate 3. An adjustment component 2 is provided between the worktable 1 and the support plate 3. The adjustment component 2 is movably fixed to the support plate 3, and the adjustment component 2 allows the worktable 1 to be adjusted in height or angle. Multiple support arm adjustment components 2 are disposed between the worktable 1 and the support plate 3, wherein each support arm adjustment component 2 includes a joint cover 20, a ball end screw 21, a limiting pin 22, and a threaded engagement mechanism. The joint cover 20 is fixedly connected to the worktable 1. The limiting pin 22 passes laterally through the joint cover 20 and the ball end screw 21, allowing the ball end screw 21 to rotate relative to the joint cover 20 about the limiting pin 22 as an axis, thereby realizing the horizontal adjustment of the worktable. The lower part of the ball end screw 21 passes through the support plate 3 and is connected to the threaded engagement mechanism. The threaded engagement mechanism is rotatably set relative to the support plate 3 and axially fixed, so that the rotating threaded engagement mechanism can drive the ball end screw 21 to move along its axial direction, thereby realizing the lifting adjustment of the worktable 1 relative to the support plate 3.
[0027] The ball-end screw 21 has an upper ball end 210 and a lower threaded section 211. The ball end 210 is rotatably accommodated within the joint cover 20, and the ball end 210 has a through hole 212 larger than the outer diameter of the limiting pin 22. The joint cover 20 has a cavity inside to accommodate the ball end 210 of the ball-end screw 21, and the bottom of the joint cover 20 has an opening structure 200 communicating with the cavity. The opposite side of the joint cover 20 has a pin hole through which the limiting pin 22 passes.
[0028] The threaded engagement mechanism includes a nut assembly and a bearing assembly. The nut assembly includes at least two stop nuts 23 connected to the threaded section 211 of the ball-end screw 21. One stop nut 23 rotates upward to engage with the worktable 1 or with the joint cover 20 for braking, while the other stop nut 23 rotates downward to engage with the bearing assembly for braking. In this embodiment, the stop nut 23 at this position rotates upward to engage with the joint cover 20 for braking.
[0029] The bearing assembly includes a handwheel 24, a flange nut 25, a flange nut fastener 26, a thrust bearing 27, a deep groove ball bearing 28, an anti-slip stop 29, and a support plate connector 30, all sequentially connected to the threaded section 211 of the ball head screw 21. The handwheel 24 is fixedly connected to the flange nut 25 and the flange nut fastener 26. The inner diameters of the thrust bearing 27 and the deep groove ball bearing 28 are fitted with the outer diameter of the lower section of the flange nut fastener 26. The anti-slip stop 29 is fixedly connected to the flange nut fastener 26. The inner diameter of the support plate connector 30 is fitted with the outer diameter of the thrust bearing 27 and the deep groove ball bearing 28, and the upper end face of the support plate connector 30 is fixedly connected to the bottom of the support plate 3. All the above fixed connections are made using connecting bolts. The anti-slip stop 29 supports the deep groove ball bearing 28, preventing it from slipping out of the ball head screw 21.
[0030] In this embodiment, the workbench 1 is a single-plate structure workbench, and the joint cover 20 is fixedly connected to the bottom of the single-plate structure workbench 1 by connecting bolts. A limiting pin 22 extends laterally through the joint cover 20 and the ball end 210, allowing the ball screw 21 to rotate relative to the joint cover 20 about the limiting pin 22 as an axis. Horizontal adjustment is achieved by rotating the ball screw 21. The limiting pin 22 supports the ball screw 21, preventing it from sliding down from the joint cover 20. Simultaneously, the limiting pin 22, in conjunction with the joint cover 20, radially prevents the ball screw 21 from rotating, preventing it from rotating radially when the stop nut 23 rotates upwards or downwards. It should be noted that the upper part of the joint cover 20 is a semi-enclosed or fully enclosed structure. The semi-enclosed design prevents the ball end 210 from passing through, thus preventing the ball screw 21 from protruding upwards. The ball screw 21 can be raised or lowered by rotating the handwheel 24, thereby achieving the height adjustment of the workbench 1 relative to the support plate 3. The two stop nuts 23 arranged vertically form a two-way mechanical lock: when adjusted to the correct position, they can be tightened upwards to lock the structure, and the handwheel 24 can be adjusted downwards to form a reverse constraint. The dual braking mechanism significantly improves the structural stability after adjustment.
[0031] Example 2: Please refer to Figures 2 to 8 This embodiment 2 is basically the same as embodiment 1, except that the workbench 1 is a composite structure workbench composed of a table plate 10 and a base 11. The table plate 10 has suction holes 100 for adsorbing objects and / or positioning grooves for fixing objects. A knob adjustment assembly 4 is provided on the adjacent side of the composite structure workbench, and a start-stop safety device 5 is provided on the front side of the composite structure workbench. By designing the knob adjustment assembly 4 to drive the adjustment of the table plate 10, the function of moving and adjusting the table plate 10 is realized. By designing the start-stop safety device 5 to be used in conjunction with the whole machine, it plays an emergency stop role to protect the operator. It should be noted that the knob adjustment assembly 4 and the start-stop safety device 5 are conventional technologies in the field of mechanical equipment, so their specific structures will not be described in detail in this article.
[0032] The base 11 has a through hole 110 through which the threaded section 211 of the ball-end screw 21 passes. The inner diameter of the through hole 110 is larger than the outer diameter of the threaded section of the ball-end screw 21, while the inner diameter of the through hole 110 is smaller than the diameter of the ball end 210, thus the ball-end screw 21 is suspended on the base 11. Specifically, the threaded section 211 of the ball-end screw 21 passes through the through hole 110 of the base 11. Since the inner diameter of the through hole 110 is smaller than the diameter of the ball end 210, the ball end 210 cannot penetrate the through hole 110 of the base 11, thus the ball-end screw 21 is suspended on the base 11. The joint cover 20 is fixedly connected to the inside of the base 11 by connecting bolts, and its internal cavity covers the ball end 210. A limiting pin 22 passes laterally through the joint cover 20 and the ball end 210, forming a ball screw 21 that can rotate around the limiting pin 22. Since the inner diameter of the through hole 110 of the base 11 is larger than the outer diameter of the threaded section 211 of the ball screw 21, that is, there is a certain gap between the two, the ball screw 21 at this point can rotate around the limiting pin 22 within a limited range, realizing the horizontal adjustment between the four corners of the worktable 1. The limiting pin 22 here also serves to support the ball screw 21, preventing the ball screw 21 from sliding down from the joint cover 20. At the same time, the limiting pin 22 cooperates with the joint cover 20 to radially stop the ball screw 21 from rotating, preventing the ball screw 21 from rotating radially when the stop nut 23 is turned up or down.
[0033] This invention provides two types of horizontally adjustable lifting worktables, each of which allows independent adjustment of each support arm adjustment component 2 to meet the needs of lifting the worktable 1 and horizontal adjustment between the four corners of the worktable. Furthermore, by utilizing articulated joints to tightly connect the support arm adjustment components 2 to the worktable 1, the lifting and horizontal adjustment of the worktable 1 can be achieved within a limited range.
Claims
1. A horizontally adjustable lifting worktable, comprising a worktable (1) and a support plate (3), characterized in that, An adjustment component (2) is provided between the workbench (1) and the support plate (3). The adjustment component (2) is fixed to the support plate (3) in an adjustable manner. The adjustment component (2) allows the workbench (1) to be adjusted in height or angle.
2. The horizontally adjustable lifting worktable according to claim 1, characterized in that, Multiple support arm adjustment components (2) are disposed between the worktable (1) and the support plate (3). Each support arm adjustment component (2) includes a joint cover (20), a ball screw (21), a limiting pin (22), and a threaded engagement mechanism. The joint cover (20) is fixedly connected to the worktable (1). The limiting pin (22) passes through the joint cover (20) and the ball screw (21) laterally, so that the ball screw (21) can rotate relative to the joint cover (20) with the limiting pin (22) as the axis. The lower part of the ball screw (21) passes through the support plate (3) and is connected to the threaded engagement mechanism. The threaded engagement mechanism is rotatably set relative to the support plate (3) and is axially fixed, so that the rotating threaded engagement mechanism can drive the ball screw (21) to move along its axial direction, thereby realizing the lifting and lowering adjustment of the worktable (1) relative to the support plate (3).
3. The horizontally adjustable lifting worktable according to claim 2, characterized in that, The ball head screw (21) has an upper ball head end (210) and a lower threaded section (211). The ball head end (210) is rotatably accommodated in the joint cover (20), and the ball head end (210) has a through hole (212) larger than the outer diameter of the limit pin (22).
4. The horizontally adjustable lifting worktable according to claim 2, characterized in that, The joint cover (20) has a cavity inside that accommodates the ball end (210) of the ball screw (21). The bottom of the joint cover (20) has an opening structure (200) that communicates with the cavity. The opposite side of the joint cover (20) has a pin hole through which the limiting pin (22) passes.
5. The horizontally adjustable lifting worktable according to claim 2, characterized in that, The threaded engagement mechanism includes a nut assembly and a bearing assembly; the nut assembly includes at least two stop nuts (23) connected to the threaded section (211) of the ball head screw (21), one of which rotates upward to abut against the worktable (1) or against the joint cover (20), and the other stop nut (23) rotates downward to abut against the bearing assembly.
6. The horizontally adjustable lifting worktable according to claim 5, characterized in that, The bearing assembly includes a handwheel (24), a flange nut (25), a flange nut fastener (26), a planar bearing (27), a deep groove ball bearing (28), an anti-loosening stop (29), and a support plate connector (30) sequentially connected to the threaded section (211) of the ball head screw (21). The handwheel (24) is fixedly connected to the flange nut (25) and the flange nut fastener (26). The inner diameters of the planar bearing (27) and the deep groove ball bearing (28) are fitted to the outer diameter of the lower section of the flange nut fastener (26). The anti-loosening stop (29) is fixedly connected to the flange nut fastener (26). The inner diameter of the support plate connector (30) is fitted to the outer diameter of the planar bearing (27) and the deep groove ball bearing (28). The upper end face of the support plate connector (30) is fixedly connected to the bottom of the support plate (3).
7. The horizontally adjustable lifting worktable according to claim 1, characterized in that, The workbench (1) is a single-board structure workbench.
8. The horizontally adjustable lifting worktable according to claim 1, characterized in that, The workbench (1) is a composite structure workbench composed of a table plate (10) and a base (11). The table plate (10) has suction holes (100) for adsorbing objects and / or positioning grooves for fixing objects. The adjacent side of the composite structure workbench is provided with a knob adjustment assembly (4), and the front side of the composite structure workbench is provided with a start-stop safety device (5).
9. The horizontally adjustable lifting worktable according to claim 8, characterized in that, The base (11) is provided with a through hole (110) through which the threaded section (211) of the ball head screw (21) passes. The inner diameter of the through hole (110) is larger than the outer diameter of the threaded section of the ball head screw (21), while the inner diameter of the through hole (110) is smaller than the diameter of the ball head end (210), so that the ball head screw (21) is suspended on the base (11).