Low-cost precise printing platform with flatness easy to adjust

Abstract

The precise printing platform comprises a panel, a supporting frame and a hanging mechanism, the panel is supported on the supporting frame, and the hanging mechanism comprises a hanging screw, a counterbore formed in the panel and used for allowing the hanging screw to penetrate through, a locking strip arranged on a supporting rib plate in a penetrating mode and a threaded hole formed in the locking strip. According to the precise printing platform, the hanging screws penetrate through the counterbores and are screwed in the threaded holes, the panel is hung on the supporting rib plates, the local flatness of the panel can be adjusted by changing the tightness of the hanging screws, the flatness of the precise printing platform is easy to adjust, and cost is low.

Description

[0001] Divisional application statement

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

[0003] The invention relates to the field of printers, and in particular to a low-cost precision printing platform with easily adjustable flatness. Background Art

[0004] When printing drawings, especially engineering drawings, the flatness of the printing platform is very high. To meet the flatness requirements, most existing printing platforms are made of aluminum plates through machining, which has high costs and long processing cycles. During machining, stress is likely to remain in the aluminum plate. After long-term use, the residual stress is likely to cause the aluminum plate to deform, thereby affecting the flatness of the printing platform and making the printing effect worse. At the same time, the flatness of this type of printing platform can only be adjusted by grinding and other methods, which is costly and inconvenient. Summary of the invention

[0005] The purpose of the present invention is to overcome the defects of the prior art and provide a low-cost precision printing platform with easy-to-adjust flatness.

[0006] To achieve the above object, the technical solution adopted by the present invention is a low-cost precision printing platform with easy-to-adjust flatness, comprising:

[0007] A panel, wherein a plurality of air suction grooves are formed on the panel and the air suction grooves penetrate the panel in the up-down direction;

[0008] A support frame, wherein the support frame is a trough frame, and the support frame includes a support rib plate located in the middle thereof, and the support rib plates are provided in a plurality and crisscross manner;

[0009] Lifting mechanism;

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

[0011] Preferably, the locking strip is movably inserted into the supporting rib.

[0012] Further preferably, the upper end portion of the support rib is provided with a through groove which penetrates the support rib along the thickness direction, and the locking strip passes through the through groove horizontally. When the tightening screw is tightened, the locking strip can pull the panel and the support rib towards each other, so that the panel and the support rib fit better.

[0013] Further preferably, the through groove has an opening on the upper end surface of the supporting rib, the opening is used for the screw rod of the tightening screw to pass through, and the force bearing point of the locking strip and the supporting rib is located at the penetration connection between the two.

[0014] Further preferably, the opening of the through groove on the side surface of the supporting rib is in a cross shape or a ⊥ shape.

[0015] Preferably, there are a plurality of countersunk holes, and the plurality of countersunk holes are distributed at intervals on the panel.

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

[0017] Further preferably, the countersunk hole is arranged close to the mortise.

[0018] Preferably, the suspension mechanism is used to prevent the panel from moving in an up-and-down direction relative to the support frame.

[0019] Preferably, a plurality of through holes are opened in the middle of the support rib, and the through holes constitute an air suction channel and can reduce weight. When adsorbing paper, the air suction channel can balance the negative pressure in the support frame, so that the paper and the panel are more closely attached during adsorption.

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

[0021] The precision printing platform provided by the present invention 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 for the hanging screw to pass through, a locking strip penetrated through the support rib plate and a threaded hole provided on the locking strip. The hanging screw passes through the countersunk hole and is tightened in the threaded hole to hang the panel on the support rib plate. By changing the tightness of the hanging screw, the local flatness of the panel can be adjusted. The flatness of the precision printing platform is easy to adjust and the cost is low. BRIEF DESCRIPTION OF THE DRAWINGS

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

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

[0024] Figure 3 yes Figure 1 Schematic diagram of the middle support plate.

[0025] Figure 4 yes Figure 1 Schematic diagram of the paper passing through.

[0026] in:

[0027] 10. Panel; 11. Side guard; 12. Matching edge; 13. Air suction slot; 20. Support frame; 21. Left side panel; 22. Right side panel; 23. Front side panel; 24. Rear side panel; 25. Support rib; 251. Through slot; 252. Through hole; 30. Mortise and tenon structure; 31. Mortise; 32. Tenon; 40. Suspension mechanism; 42. Countersunk hole; 43. Locking strip; 44. Threaded hole; 60. Paper. DETAILED DESCRIPTION

[0028] The preferred embodiments of the present invention are described in detail below in conjunction with 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 making a clearer and more definite definition of the protection scope of the present invention.

[0029] The front and back, left and right, and up and down directions described in the present invention are Figure 1 In the front and back, left and right, up and down directions, the traveling direction of the paper in the present invention is Figure 4 The direction indicated by the arrow at 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 mortise and tenon structure 30 and a hanging mechanism 40, wherein the projection of the panel 10 in the up-down direction is rectangular, the front and rear sides of the panel 10 are vertically bent upward to form a retaining edge 11 for retaining paper, and the left and right sides of the panel 10 are bent downward and inward to form a matching edge 12, and a plurality of suction grooves 13 for adsorbing paper 60 are provided on the panel 10, and the suction grooves 13 penetrate the panel 10 in the up-down direction, and the suction grooves 13 are waist-shaped grooves, and the suction grooves 13 extend in the left-right direction; the support frame 20 is used to support The panel 10, the support frame 20 is a trough frame, the support frame 20 includes left and right side panels located on the left and right sides, front and rear side panels located on the front and rear sides, and a support rib 25 located in the middle of the support frame. The left and right side panels include a left side panel 21 located on the left and a right side panel 22 located on the right. The front and rear side panels include a front side panel 23 located on the front side and a rear side panel 24 located on the rear side. There are multiple support ribs 25 and they are crisscrossed. In this embodiment, the plane where the support ribs 25 are located is parallel to the plane where the left and right side panels are located and is perpendicular to the plane where the front and rear side panels are located or parallel to the plane where the front and rear 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 the mortises 31 are provided one by one. 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 in the front-to-back direction and the left-to-right direction relative to the support frame 20. The tightening 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 up and down directions, the hanging mechanism 40 includes a hanging screw (not shown in the figure), a countersunk hole 42 opened on the panel 10 for the hanging screw to pass through, a locking strip 43 penetrated on the support rib 25 and a threaded hole 44 opened on the locking strip 43. The hanging screw passes through the countersunk hole 42 and is tightened in the threaded hole 44 to hang the panel 10 on the support rib 25, thereby achieving the technical effect of locking the relative position of the panel 10 and the support frame 20 in the up and down directions. By changing the tightness of the hanging screw, the local flatness of the panel 10 can be adjusted.

[0031] The countersunk hole 42 is arranged close to the mortise 31. The advantage of such 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-to-back and left-to-right directions, and the tenon 32 is not likely to squeeze and deform the mortise 31, thereby avoiding the influence of the mortise and tenon structure 30 on the flatness of the panel 10.

[0032] In order to further optimize the lifting effect of the lifting mechanism 40, the locking strip 43 can be movably penetrated on the supporting rib 25. Specifically, the upper end of the supporting rib 25 is provided with a through slot 251 for the locking strip 43 to pass through. The through slot 251 penetrates the supporting rib 25 along the thickness direction of the supporting rib 25. The opening of the through slot 251 on the side of the supporting rib 25 is cross-shaped or ⊥-shaped. The locking strip 43 passes through the through slot 251 horizontally. When the lifting screw is tightened, the locking strip 43 can be The panel 10 and the supporting rib 25 are pulled toward each other so that the panel 10 and the supporting rib 25 are more closely fitted. 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 surface of the supporting rib 25, and the opening is used for the screw of the tightening screw to pass through, so that the force points of the locking strip 43 and the supporting rib 25 are located at the connection between the two, so that the tightening effect of the tightening screw can be reflected more timely 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, which are processed by a laser cutting machine. Compared with the mechanical processing of aluminum plates, this setting can greatly reduce the raw material cost and processing cost, thereby reducing the manufacturing cost of the entire precision printing platform.

[0034] In this embodiment, a plurality of through holes 252 are further provided in the middle of the support rib 25. The through holes 252 constitute an air suction channel and can reduce weight. When adsorbing the paper 60, the air suction channel can balance the negative pressure in the support frame 20, so that the paper 60 and the panel 10 are more closely fitted during adsorption.

[0035] The intersecting parts of the support ribs 25 and the support ribs 25, the contact parts between the support ribs 25 and the left and right side panels, and the contact parts between the support ribs 25 and the front and rear side panels are all provided with welding points for reinforcement (not shown in the figure). Compared with the overall welding, the spot welding method can avoid the deformation of the 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 matching edge 12 is connected to the left and right side panels by bolts, and the left and right side panels and the front and rear side panels are positioned by mortise and tenon structures.

[0037] The above-mentioned implementation modes are only for illustrating the technical concept and features of the present invention, and their purpose is to enable people familiar with this technology to understand the contents of the present invention and implement them accordingly. They cannot be used to limit the protection scope of the present invention. Any equivalent changes or modifications made according to the spirit of the present invention should be included in the protection scope of the present invention.

Claims

1. A low-cost precision printing platform with easily adjustable flatness, comprising: A panel, wherein a plurality of air suction grooves are formed on the panel and the air suction grooves penetrate the panel in the up-down direction; A support frame, wherein the support frame is a trough frame, and the support frame includes a support rib plate located in the middle thereof, and the support rib plates are provided in a plurality and crisscross manner; Lifting mechanism; Features: The tightening mechanism includes a tightening screw, a countersunk hole on the panel for the tightening screw to pass through, a locking strip passed through the supporting rib, and a threaded hole on the locking strip. The tightening screw passes through the countersunk hole and is tightened in the threaded hole to tighten the panel on the supporting rib. The tightness of the tightening screw is used to adjust the local flatness of the panel.

2. The low-cost precision printing platform with easily adjustable flatness according to claim 1, characterized in that: The locking strip is movably arranged on the supporting rib.

3. The low-cost precision printing platform with easily adjustable flatness according to claim 2, characterized in that: The upper end of the support rib is provided with a through groove which penetrates the support rib along the thickness direction, and the locking strip passes through the through groove horizontally. When the tightening screw is tightened, the locking strip can pull the panel and the support rib towards each other, so that the panel and the support rib fit better.

4. The low-cost precision printing platform with easily adjustable flatness according to claim 3, characterized in that: The through groove has an opening on the upper end surface of the supporting rib, and the opening is used for the screw rod of the tightening screw to pass through. The force bearing points of the locking strip and the supporting rib are located at the penetration connection between the two.

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

6. The low-cost precision printing platform with easily adjustable flatness according to claim 1, characterized in that: There are a plurality of countersunk holes, and the plurality of countersunk holes are distributed at intervals on the panel.

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

8. The low-cost precision printing platform with easily adjustable flatness according to claim 7, characterized in that: The countersunk hole is arranged close to the mortise.

9. 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 in the up and down directions relative to the support frame.

10. The low-cost precision printing platform with easily adjustable flatness according to claim 1, characterized in that: A plurality of through holes are provided in the middle of the support ribs, which constitute air suction channels and can reduce weight. When adsorbing paper, the air suction channels can balance the negative pressure in the support frame, so that the paper and the panel are more closely attached during adsorption.

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