A scanning assembly support positioning plastic pallet structure for a printer

Abstract

The utility model discloses a scanning assembly support positioning plastic supporting plate structure for printer, including the supporting plate matrix, the recess for placing scanning assembly is seted up in the top of supporting plate matrix, the inner wall of recess is covered with buffer layer, the connecting column is seted up in the top of supporting plate matrix all around, the reinforcing rib of multiple roots is arranged in the bottom of supporting plate matrix and is distributed in longitudinal and horizontal direction, the utility model discloses: the polyurethane foam buffer layer of setting in the inner wall of recess can directly absorb the periodic vibration of motor, transmission gear when scanning assembly operation produces, avoids vibrating and directly transmitting to the supporting plate matrix, the butyronitrile rubber shock pad of supporting plate bottom positioning convex column outside, can attenuate the vibration of supporting plate transmission to fuselage, reduces the reverse influence of fuselage and supporting plate resonance to scanning assembly simultaneously, thereby prevents long -term vibration and leads to the fatigue loosening of connecting fastener, avoids scanning assembly and appears tiny deviation.

Description

Technical Field

[0001] This utility model relates to the field of printer scanning technology, specifically a plastic tray structure for supporting and positioning the scanning component of a printer. Background Technology

[0002] In printers with scanning capabilities, the scanning component needs to be fixed to the printer body using a specific support and positioning structure. This structure must simultaneously meet two core requirements: first, it must bear the weight of the scanning component, ensuring that it does not sink or tilt during long-term use; second, it must provide a stable mounting reference for the scanning component, preventing lateral or longitudinal shifts during startup, scanning movement, and shutdown, thereby ensuring the clarity and color reproduction of the scanned image. Currently, most printer scanning component support and positioning structures on the market are made of plastic and manufactured using injection molding. Their structural design typically includes a support surface for placing the scanning component, mounting holes for connecting to the printer body, and simple protrusions for auxiliary positioning. In typical printer usage scenarios, this type of structure can basically achieve the support and positioning functions of the scanning component and is a relatively common technical solution in the current printer industry.

[0003] In the long-term use of existing plastic tray structures, when the scanning component is running, the internal motor, transmission gears and other components will generate periodic vibrations. These vibrations will be transmitted to the machine body through the tray. The tray and the scanning component are mostly made of rigid plastic and are directly attached without an elastic buffer structure. The vibration is directly transmitted to the tray. Furthermore, the connection between the tray and the machine body is only for fixing and does not block vibration. The vibration of the tray is transmitted to the machine body without attenuation and may even resonate and affect the component in the opposite direction. Over time, the fasteners are prone to fatigue and loosening, and the component may have a slight displacement, resulting in blurred scan images, ghosting or edge misalignment. Utility Model Content

[0004] The purpose of this invention is to provide a plastic tray structure for supporting and positioning the scanning component of a printer, in order to solve the problem mentioned in the background art that the tray and the scanning component are mostly made of rigid plastic directly bonded together without an elastic buffer structure, and vibration is directly transmitted to the tray.

[0005] To achieve the above objectives, this utility model provides the following technical solution: A plastic tray structure for supporting and positioning a scanning component in a printer includes a tray base, the top of which has a groove for placing a scanning component, and the inner wall of the groove is covered with a buffer layer. The top of the pallet base is provided with connecting columns around its perimeter, and the bottom of the pallet base is provided with multiple reinforcing ribs arranged longitudinally and laterally.

[0006] In a preferred embodiment of this utility model, the pallet substrate is integrally injection molded from modified PP + glass fiber composite plastic.

[0007] In a preferred embodiment of this utility model, the buffer layer is made of elastic polyurethane foam.

[0008] In a preferred embodiment of this utility model, the connecting column is a hollow structure, and the inner wall of the connecting column is provided with internal threads.

[0009] In a preferred embodiment of this utility model, a reinforcing ring is provided on the outer wall of the connecting column, and the reinforcing ring is integrally formed with the support plate base and the connecting column.

[0010] In a preferred embodiment of this utility model, multiple reinforcing ribs intersect to form a mesh-like reinforcing area, and the reinforcing ribs are integrally formed with the tray substrate.

[0011] In a preferred embodiment of the present invention, positioning ears are provided on both sides of the top of the pallet base. The positioning ears are integrally formed with the pallet base, and positioning holes are provided on the telescopic positioning ears.

[0012] In a preferred embodiment of the present invention, positioning protrusions are provided around the bottom of the pallet base, and the positioning protrusions are integrally formed with the pallet base.

[0013] In a preferred embodiment of this utility model, a shock-absorbing pad is fixedly provided on the outer side of the positioning protrusion, and the bottom of the shock-absorbing pad is provided with an anti-slip mesh pattern.

[0014] In a preferred embodiment of this utility model, the shock-absorbing pad is made of nitrile rubber.

[0015] Additional aspects and advantages of this invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention.

[0016] Beneficial effects: The polyurethane foam buffer layer set on the inner wall of the groove in this utility model can directly absorb the periodic vibration generated by the motor and transmission gears during the operation of the scanning component, and avoid the vibration being directly transmitted to the tray base; the nitrile rubber shock-absorbing pad on the outside of the positioning protrusion at the bottom of the tray can attenuate the vibration transmitted from the tray to the machine body, and at the same time reduce the reverse influence of the resonance between the machine body and the tray on the scanning component, thereby preventing long-term vibration from causing fatigue and loosening of the connecting fasteners, avoiding slight displacement of the scanning component, solving the problem of blurred scanning images, ghosting or edge misalignment caused by vibration transmission in existing trays, and ensuring stable scanning accuracy.

[0017] The above description is merely an overview of the technical solution of this utility model. In order to better understand the technical means of this utility model and to implement it according to the contents of the specification, the preferred embodiments of this utility model are described in detail below with reference to the accompanying drawings. The specific implementation methods of this utility model are given in detail in the following embodiments and their accompanying drawings. Attached Figure Description

[0018] The above and / or additional aspects and advantages of this utility model will become apparent and readily understood from the description of the embodiments taken in conjunction with the following drawings, in which: Figure 1 This is a schematic diagram of the main structure of a plastic tray structure for supporting and positioning the scanning component of a printer. Figure 2 A schematic diagram of the bottom structure of a plastic tray structure for supporting and positioning the scanning component of a printer; Figure 3 This is an exploded view of a plastic tray structure that supports and positions the scanning component of a printer. Figure 4 This is a schematic diagram of a positioning protrusion structure in a plastic tray structure that supports and positions the scanning component of a printer.

[0019] In the diagram: 1. Tray base; 2. Groove; 3. Buffer layer; 4. Connecting post; 5. Internal thread; 6. Reinforcing ring; 7. Reinforcing rib; 8. Positioning ear; 9. Positioning hole; 10. Positioning protrusion; 11. Shock-absorbing pad; 12. Anti-slip mesh pattern. Detailed Implementation

[0020] The embodiments of this utility model are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this utility model, and should not be construed as limiting this utility model.

[0021] Please refer to Figures 1-4 This utility model discloses a plastic tray structure for supporting and positioning the scanning component of a printer, which includes a tray base 1. The tray base 1 is integrally injection molded from modified PP + glass fiber composite plastic. This material has both good structural strength and lightweight characteristics, which can stably support the weight of the scanning component and avoid increasing the burden on the printer body due to excessive weight. At the same time, the integral injection molding process can ensure the structural integrity of the tray base 1 and reduce stress concentration problems caused by splicing gaps.

[0022] The top of the tray base 1 has a groove 2 for placing the scanning component. The inner contour of the groove 2 is perfectly matched with the bottom shape of the scanning component, which can achieve the initial positioning of the scanning component and prevent the scanning component from sliding laterally on the top of the tray base 1. The inner wall of the groove 2 is covered with a buffer layer 3. The buffer layer 3 is made of elastic polyurethane foam material. Its thickness is uniform and it fits the inner bottom surface and the surrounding side walls of the groove 2. It is fixed to the inner wall of the groove 2 with environmentally friendly double-sided adhesive, which can ensure that it will not fall off or shift during long-term use. The elastic material properties can effectively absorb some of the vibration energy generated by the scanning component during operation and reduce the transmission of vibration to the tray base 1.

[0023] Connecting posts 4 are provided around the top of the tray base 1. The connecting posts 4 are evenly distributed along the four corners of the top of the tray base 1, with one post at each corner. The axis of the connecting posts 4 is perpendicular to the top surface of the tray base 1 to ensure uniform force when the tray base 1 is connected to the machine body. The connecting posts 4 are hollow structures with hollow channels running through the upper and lower surfaces of the tray base 1. The inner wall of the connecting posts 4 is provided with internal threads 5. The specifications of the internal threads 5 are compatible with the bolts at the corresponding mounting positions on the printer body. The connection between the tray base 1 and the machine body can be achieved through the cooperation of the bolts and the internal threads 5. The outer wall of the connecting posts 4 is provided with reinforcing rings 6. The reinforcing rings 6 are integrally formed with the tray base 1 and the connecting posts 4. The reinforcing rings 6 are spaced along the height direction of the connecting posts 4 to enhance the connection strength between the connecting posts 4 and the tray base 1 and prevent the connecting posts 4 from bending or breaking due to excessive force when the bolts are tightened.

[0024] The bottom of the tray base 1 is provided with multiple reinforcing ribs 7 arranged longitudinally and laterally. The longitudinal reinforcing ribs 7 extend along the length of the tray base 1, and the transverse reinforcing ribs 7 extend along the width of the tray base 1. The longitudinal and transverse reinforcing ribs 7 intersect each other perpendicularly to form a mesh reinforcement area. The reinforcing ribs 7 are integrally formed with the tray base 1. Their height and thickness have been designed by structural strength calculation. This can not only improve the bending and deformation resistance of the bottom of the tray base 1 and prevent the tray base 1 from sinking or bending after bearing the weight of the scanning component for a long time, but also avoid excessively increasing the overall weight of the tray, thus balancing the requirements of strength and lightweight.

[0025] Positioning lugs 8 are provided on both sides of the top of the tray base 1. The positioning lugs 8 are symmetrically distributed on the front and rear sides (or left and right sides) of the top of the tray base 1 and are integrally formed with the tray base 1. The top surface of the positioning lugs 8 is flush with the top surface of the tray base 1. Positioning holes 9 are provided on the positioning lugs 8. The axis of the positioning holes 9 is perpendicular to the top surface of the tray base 1. The diameter of the positioning holes 9 is adapted to the positioning post at the corresponding position on the bottom of the scanning component. When the scanning component is placed in the groove 2, the positioning post of the scanning component can be inserted into the positioning hole 9 to achieve accurate positioning of the scanning component on the tray base 1 and reduce assembly errors.

[0026] Positioning protrusions 10 are provided around the bottom of the tray base 1. The positioning protrusions 10 are integrally formed with the tray base 1 and correspond one-to-one with the connecting posts 4 at the top of the tray base 1 to ensure the vertical force balance of the tray base 1. A shock-absorbing pad 11 is fixedly installed on the outside of the positioning protrusions 10. The shock-absorbing pad 11 is made of nitrile rubber and has a channel inside that matches the positioning protrusions 10. It is fitted onto the outside of the positioning protrusions 10 by interference fit to ensure that the shock-absorbing pad 11 is firmly connected to the positioning protrusions 10 and is not easy to fall off. The bottom of the shock-absorbing pad 11 is provided with an anti-slip mesh pattern 12. The anti-slip mesh pattern 12 is a raised pattern integrally formed with the shock-absorbing pad 11, which can increase the contact friction between the shock-absorbing pad 11 and the mounting surface of the printer body, preventing the tray base 1 from shifting during vibration. At the same time, the elastic properties of nitrile rubber can further absorb the vibration transmitted from the tray base 1 to the machine body, forming a secondary buffer.

[0027] The working principle of this utility model is as follows: First, the shock-absorbing pad 11 is fitted onto the outside of the positioning protrusion 10 at the bottom of the tray base 1 through an interference fit, thus completing the installation of the shock-absorbing pad 11; then, the tray base 1 is placed on the corresponding installation position of the printer body, so that the connecting posts 4 around the top of the tray base 1 are aligned with the bolt mounting holes of the machine body. After the bolts are passed through the mounting holes of the machine body, they are screwed into the internal threads 5 on the inner wall of the connecting posts 4 until the bolts are tightened. At this time, the tray base 1 is fixedly connected to the machine body through the connecting posts 4, and the shock-absorbing pad 11 at the bottom of the tray base 1 is in close contact with the mounting surface of the machine body, forming an initial buffer; finally, the bottom of the scanning assembly is aligned with the groove 2 at the top of the tray base 1, so that the positioning of the bottom of the scanning assembly is achieved. Align the positioning pin with the positioning hole 9 on the positioning ear 8 and slowly lower the scanning component until the bottom of the scanning component is completely placed in the groove 2 and the positioning pin is inserted into the positioning hole 9, thus completing the positioning and installation of the scanning component. The vibration generated during the operation of the scanning component is first partially absorbed by the buffer layer 3 on the inner wall of the groove 2. The remaining vibration is transmitted to the tray base 1, where part of it is dispersed and weakened by the mesh reinforcement area at the bottom of the tray base 1, and the other part is buffered again by the shock-absorbing pad 11 before being transmitted to the machine body, greatly reducing the impact of vibration on the scanning component and the machine body. At the same time, the positioning ear 8 and the positioning hole 9 ensure the stability of the scanning component position, and the anti-slip mesh pattern 12 prevents the tray base 1 from shifting, ultimately ensuring the accurate execution of the scanning operation.

[0028] Although embodiments of the present invention have been shown and described, those skilled in the art will understand that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the claims and their equivalents.

Claims

1. A plastic tray structure for supporting and positioning the scanning component of a printer, characterized in that: Includes a tray base (1), the top of which is provided with a groove (2) for placing a scanning component, and the inner wall of the groove (2) is covered with a buffer layer (3). The pallet base (1) is provided with connecting columns (4) around the top, and the bottom of the pallet base (1) is provided with multiple reinforcing ribs (7) arranged in a longitudinal and transverse manner.

2. The plastic tray structure for supporting and positioning a scanning component in a printer according to claim 1, characterized in that, The buffer layer (3) is made of elastic polyurethane foam.

3. The plastic tray structure for supporting and positioning the scanning component of a printer according to claim 1, characterized in that, The connecting column (4) is a hollow structure, and the inner wall of the connecting column (4) is provided with internal threads (5).

4. The plastic tray structure for supporting and positioning a scanning component in a printer according to claim 1, characterized in that, The outer wall of the connecting column (4) is provided with a reinforcing ring (6), which is integrally formed with the tray base (1) and the connecting column (4).

5. A plastic tray structure for supporting and positioning a scanning component in a printer according to claim 1, characterized in that, Multiple reinforcing ribs (7) intersect to form a mesh reinforcement area, and the reinforcing ribs (7) are integrally formed with the tray base (1).

6. A plastic tray structure for supporting and positioning a scanning component in a printer according to claim 1, characterized in that, The top two sides of the tray base (1) are provided with positioning ears (8), which are integrally formed with the tray base (1), and the telescopic positioning ears (8) are provided with positioning holes (9).

7. A plastic tray structure for supporting and positioning a scanning component in a printer according to claim 1, characterized in that, The bottom of the pallet base (1) is provided with positioning protrusions (10), and the positioning protrusions (10) are integrally formed with the pallet base (1).

8. A plastic tray structure for supporting and positioning a scanning component in a printer according to claim 7, characterized in that, A shock-absorbing pad (11) is fixedly provided on the outside of the positioning protrusion (10), and the bottom of the shock-absorbing pad (11) is provided with an anti-slip mesh pattern (12).

9. A plastic tray structure for supporting and positioning a scanning component in a printer according to claim 8, characterized in that, The shock-absorbing pad (11) is made of nitrile rubber.

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