A low-cost precision printing platform with easy-to-adjust flatness

Abstract

The precision printing platform comprises a panel, a support frame and a hanging mechanism, the panel is supported on the support frame, the hanging mechanism comprises a hanging screw, a countersunk hole provided on the panel and used for allowing the hanging screw to pass through, a locking strip penetrating through the support rib plate and a threaded hole provided on the locking strip, the hanging screw is screwed in the threaded hole through the countersunk hole, and the panel is hung on the support rib plate, the flatness of the panel in a local area can be adjusted by changing the tightness of the hanging screw, and the flatness of the precision printing platform is easy to adjust and low in cost.

Description

[0001] Divisional application statement

[0002] This application is a divisional application of Chinese invention patent application filed on March 12, 2021, entitled "A Precision Printing Platform" with application number 202110270632.X. Technical Field

[0003] This invention relates to the field of printers, and more specifically to a low-cost precision printing platform with easily adjustable flatness. Background Technology

[0004] When printing drawings, especially engineering drawings, the flatness of the printing platform is of high importance. To meet this requirement, most existing printing platforms are made of aluminum plates through machining, which is costly and time-consuming. During machining, residual stress can easily remain in the aluminum plate. After prolonged use, this residual stress can cause the aluminum plate to deform, thus affecting the flatness of the printing platform and resulting in poor printing quality. In addition, the flatness of this type of printing platform can only be adjusted by grinding, which is costly and inconvenient. Summary of the Invention

[0005] The purpose of this invention is to overcome the shortcomings of the prior art and provide a low-cost precision printing platform with easily adjustable flatness.

[0006] To achieve the above objectives, the technical solution adopted by the present invention is a low-cost precision printing platform with easily adjustable flatness, comprising:

[0007] A panel, wherein a plurality of air intake grooves are provided on the panel and the air intake grooves penetrate the panel in the vertical direction;

[0008] A support frame, wherein the support frame is a grooved frame, and the support frame includes a support rib located in the middle, and the support rib is multiple and arranged in a crisscross pattern;

[0009] hoisting mechanism;

[0010] The hoisting mechanism includes a hoisting screw, a countersunk hole on the panel for the hoisting screw to pass through, a locking strip on the support rib, and a threaded hole on the locking strip. The hoisting screw passes through the countersunk hole and is tightened in the threaded hole to hoist the panel onto the support rib. The tightness of the hoisting screw is used to adjust the local flatness of the panel.

[0011] Preferably, the locking strip is movably inserted through the support rib.

[0012] More preferably, the upper end of the support rib is provided with a through groove extending through the support rib along the thickness direction, and the locking strip passes horizontally through the through groove. When the tightening screw is tightened, the locking strip can pull the panel and the support rib closer to each other, so that the panel and the support rib fit more closely.

[0013] More preferably, the through groove has an opening on the upper end face of the support rib, the opening for the screw of the tightening screw to pass through, and the force-bearing point of the locking strip and the support rib is located at the through-connection of the two.

[0014] More preferably, the opening of the through groove on the side of the support rib is cross-shaped or ⊥-shaped.

[0015] Preferably, there are multiple countersunk holes, which are spaced apart on the panel.

[0016] Preferably, the panel is provided with a plurality of mortises, and the upper end of the support rib is provided with a plurality of tenons. The tenons are provided in a one-to-one correspondence with the mortises. When the panel is fixed to the support frame, the tenons are inserted into the corresponding mortises to prevent the panel from moving relative to the support frame in the front-back direction and the left-right direction.

[0017] More preferably, the countersunk hole is located close to the mortise.

[0018] Preferably, the suspension mechanism is used to prevent the panel from moving in the vertical direction relative to the support frame.

[0019] Preferably, the support rib has several through holes in the middle, which form a suction channel and can reduce weight. When adsorbing paper, the suction channel can balance the negative pressure in the support frame, so that the paper adheres better to the panel during adsorption.

[0020] Due to the application of the above-mentioned technical solution, the present invention has the following advantages compared with the prior art:

[0021] The precision printing platform provided by this invention includes a panel, a support frame, and a clamping mechanism. The panel is supported on the support frame. The clamping mechanism includes a clamping screw, a countersunk hole in the panel for the clamping screw to pass through, a locking strip on the support rib, and a threaded hole in the locking strip. The clamping screw passes through the countersunk hole and is tightened in the threaded hole, thus clamping the panel to the support rib. By changing the tightness of the clamping screw, the local flatness of the panel can be adjusted. The flatness of this precision printing platform is easy to adjust and has low cost. Attached Figure Description

[0022] Figure 1 This is a three-dimensional schematic diagram of a preferred embodiment of the present invention, with a partial cross-sectional view.

[0023] Figure 2 yes Figure 1 A 3D schematic diagram of the middle panel after rotation.

[0024] Figure 3 yes Figure 1 A three-dimensional schematic diagram of the central support plate.

[0025] Figure 4 yes Figure 1 A diagram illustrating the process of the paper being fed onto the paper.

[0026] in:

[0027] 10. Panel; 11. Edge guard; 12. Mating edge; 13. Suction duct; 20. Support frame; 21. Left side panel; 22. Right side panel; 23. Front side panel; 24. Rear side panel; 25. Support rib; 251. Through groove; 252. Through hole; 30. Mortise and tenon structure; 31. Mortise; 32. Tenon; 40. Hanging mechanism; 42. Countersunk hole; 43. Locking strip; 44. Threaded hole; 60. Paper. Detailed Implementation

[0028] The preferred embodiments of the present invention will now be described in detail with reference to the accompanying drawings, so that the advantages and features of the present invention can be more easily understood by those skilled in the art, thereby providing a clearer and more explicit definition of the scope of protection of the present invention.

[0029] The front-back, left-right, and up-down directions described in this invention are Figure 1 In this invention, the paper's direction of travel is defined as follows: (The preceding text refers to the front-back, left-right, and up-down directions.) Figure 4 The direction the arrow points at point A.

[0030] like Figure 1-4As shown, the precision printing platform provided by the present invention includes: a panel 10, a support frame 20, a tenon and mortise structure 30, and a clamping mechanism 40. The panel 10 has a rectangular projection in the vertical direction. The front and rear sides of the panel 10 are vertically bent upwards to form paper-stopping edges 11. The left and right sides of the panel 10 are bent downwards and inwards to form mating edges 12. The panel 10 has multiple suction grooves 13 for adsorbing paper 60. The suction grooves 13 penetrate the panel 10 in the vertical direction and are waist-shaped. The suction grooves 13 extend in the left and right directions. The support frame 20 is used for support. The panel 10 and the support frame 20 are slotted frames. The support frame 20 includes left and right side plates on the left and right sides, front and rear side plates on the front and rear sides, and support ribs 25 in the middle of the support frame. The left and right side plates include a left side plate 21 on the left and a right side plate 22 on the right. The front and rear side plates include a front side plate 23 on the front and a rear side plate 24 on the rear. There are multiple support ribs 25 arranged in a crisscross pattern. In this embodiment, the plane of the support ribs 25 is parallel to the plane of the left and right side plates and perpendicular to the plane of the front and rear side plates, or parallel to the plane of the front and rear side plates. The plane is perpendicular to the plane where the left and right side panels are located; the mortise and tenon structure 30 is used to fix the relative position of the panel 10 and the support frame 20. In this embodiment, the mortise and tenon structure 30 includes a plurality of mortises 31 provided on the panel 10 and a plurality of tenons 32 provided on the upper end of the support rib 25. The tenons 32 and mortises 31 are provided in a one-to-one correspondence. When the panel 10 is fixed to the support frame 20, the tenons 32 are inserted into the corresponding mortises 31 to prevent the panel 10 from moving relative to the support frame 20 in the front-back direction and the left-right direction; the tensioning mechanism 40 is used to prevent the panel 10 from moving relative to the support frame 20. As the support frame 20 moves in the vertical direction, the hoisting mechanism 40 includes a hoisting screw (not shown in the figure), a countersunk hole 42 on the panel 10 for the hoisting screw to pass through, a locking strip 43 on the support rib 25, and a threaded hole 44 on the locking strip 43. The hoisting screw passes through the countersunk hole 42 and is tightened in the threaded hole 44, thus hoisting the panel 10 onto the support rib 25. This achieves the technical effect of locking the relative position of the panel 10 and the support frame 20 in the vertical direction. By changing the tightness of the hoisting screw, the local flatness of the panel 10 can be adjusted.

[0031] The countersunk hole 42 is positioned close to the mortise 31. The advantage of this arrangement is that when the tightness of the tightening screw is changed, the relative position of the mortise 31 and the tenon 32 located therein changes little in the front-back and left-right directions. This makes it less likely that the tenon 32 will deform the mortise 31, thus avoiding the impact of the mortise and tenon structure 30 on the flatness of the panel 10.

[0032] To further optimize the tightening effect of the tightening mechanism 40, a locking strip 43 is movably inserted into the support rib 25. Specifically, the upper end of the support rib 25 is provided with a through groove 251 for the locking strip 43 to pass through. The through groove 251 extends through the support rib 25 along its thickness direction. The opening of the through groove 251 on the side of the support rib 25 is cross-shaped or ⊥-shaped. The locking strip 43 passes horizontally through the through groove 251. When the tightening screw is tightened, the locking strip 43 can... The panel 10 and the support rib 25 are pulled closer to each other, making the panel 10 and the support rib 25 fit more closely. Furthermore, the threaded hole 44 on the locking strip 43 is located in the through groove 251. The through groove 251 has an opening on the upper end face of the support rib 25, which is used for the screw of the lifting screw to pass through. This makes the force point of the locking strip 43 and the support rib 25 located at the connection between the two, so that the lifting effect of the lifting screw can be reflected more promptly and intuitively.

[0033] In this embodiment, the panel 10, left and right side panels, front and rear side panels, support ribs 25 and locking strips 43 are all sheet metal parts. The sheet metal parts are processed by a laser cutting machine. Compared with the machining of aluminum plates, this arrangement can significantly reduce the cost of raw materials and processing costs, thereby reducing the manufacturing cost of the entire precision printing platform.

[0034] In this embodiment, the middle part of the support rib 25 is also provided with several through holes 252. The through holes 252 form a suction channel and can reduce weight. When adsorbing paper 60, the suction channel can balance the negative pressure in the support frame 20, so that the paper 60 and the panel 10 have a higher degree of adhesion during adsorption.

[0035] The intersection of the support ribs 25, the contact points between the support ribs 25 and the left and right side plates, and the contact points between the support ribs 25 and the front and rear side plates are all provided with welding points for reinforcement (not shown in the figure). Compared with overall welding, spot welding can avoid the deformation of sheet metal parts caused by welding to the greatest extent and reduce the impact on the flatness of the panel 10.

[0036] In this embodiment, the mating edge 12 is connected to the left and right side plates by bolts, and the left and right side plates and the front and rear side plates are positioned by mortise and tenon joints.

[0037] The above embodiments are only for illustrating the technical concept and features of the present invention. Their purpose is to enable those skilled in the art to understand the content of the present invention and implement it accordingly. They should not be used to limit the scope of protection of the present invention. All equivalent transformations or modifications made in accordance with the spirit and essence of the present invention should be covered within the scope of protection of the present invention.

Claims

1. A low-cost precision printing platform with easily adjustable flatness, comprising: A panel, wherein a plurality of air intake grooves are provided on the panel and the air intake grooves penetrate the panel in the vertical direction; A support frame, wherein the support frame is a grooved frame, and the support frame includes a support rib located in the middle, wherein there are multiple support ribs arranged in a crisscross pattern; hoisting mechanism; Its features are: The hoisting mechanism includes a hoisting screw, a countersunk hole on the panel for the hoisting screw to pass through, a locking strip on the support rib, and a threaded hole on the locking strip. The hoisting screw passes through the countersunk hole and is tightened in the threaded hole to hoist the panel onto the support rib. The tightness of the hoisting screw is used to adjust the local flatness of the panel. The locking strip is movably inserted through the support rib plate; The upper end of the support rib is provided with a through groove that runs through the support rib along the thickness direction. The locking strip passes horizontally through the through groove. When the lifting screw is tightened, the locking strip can pull the panel and the support rib closer to each other, so that the panel and the support rib fit together more closely.

2. The low-cost precision printing platform with easily adjustable flatness according to claim 1, characterized in that: The through groove has an opening on the upper end face of the support rib, the opening for the screw of the tightening screw to pass through, and the stress point of the locking strip and the support rib is located at the through-connection of the two.

3. The low-cost precision printing platform with easily adjustable flatness according to claim 1, characterized in that: The opening of the through groove on the side of the support rib is cross-shaped or ⊥-shaped.

4. The low-cost precision printing platform with easily adjustable flatness according to claim 1, characterized in that: There are multiple countersunk holes, which are spaced apart on the panel.

5. The low-cost precision printing platform with easily adjustable flatness according to claim 1, characterized in that: The panel has multiple mortises, and the upper end of the support rib has multiple tenons. The tenons are arranged in a one-to-one correspondence with the mortises. When the panel is fixed to the support frame, the tenons are inserted into the corresponding mortises to prevent the panel from moving relative to the support frame in the front-back direction and the left-right direction.

6. The low-cost precision printing platform with easily adjustable flatness according to claim 5, characterized in that: The countersunk hole is located close to the mortise.

7. The low-cost precision printing platform with easily adjustable flatness according to claim 1, characterized in that: The suspension mechanism is used to prevent the panel from moving vertically relative to the support frame.

8. The low-cost precision printing platform with easily adjustable flatness according to claim 1, characterized in that: The support rib has several through holes in the middle, which form a suction channel and can reduce weight. When adsorbing paper, the suction channel can balance the negative pressure in the support frame, so that the paper adheres better to the panel during adsorption.

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