A lift-type press roller frame structure

Abstract

The utility model relates to a silk screen printing equipment especially a lifting type pressure wheel frame structure, it includes conveying platform and pressure wheel frame, the pressure wheel frame sets up above conveying platform, the pressure wheel frame includes the supporting plate, the supporting plate top surface is equipped with the opening for the ball to pass through, the supporting plate bottom surface is equipped with a plurality of limit mouth for ball shows, wherein, the pressure wheel frame still includes the pressing strip, the pressing strip is located above the opening, one end of pressure wheel frame is articulated with conveying platform and pressure wheel frame swings around the articulation point, and pressure wheel frame swings around the articulation point and lifts a certain angle for operator to stretch into between pressure wheel frame and conveying platform and clean the print receiving material such as paper, and the pressing strip limits the ball to separate from the supporting plate through the opening, the number of steel ball and glass bead is adjusted to obtain different print receiving material pressure, realizes counterweight.

Description

Technical Field

[0001] This utility model relates to screen printing equipment, and in particular to a lifting pressure roller frame structure. Background Technology

[0002] The main substrate for screen printing machines during the printing process is paper or some PVC materials. During normal printing, the paper needs to move forward along the belt under the pressure of the pressure rollers or balls. If a problem occurs during the printing process, the machine needs to be stopped and the substrate on the table needs to be cleaned out. Utility Model Content

[0003] In view of the technical problems existing in the background art, the present utility model aims to provide a lifting pressure roller frame structure, in which the pressure roller frame is raised at a certain angle so that the operator can reach between the pressure roller frame and the conveyor platform to clean and remove paper and other printing materials, and the pressure strip restricts the ball to detach from the tray through the opening.

[0004] To solve the above-mentioned technical problems, the present invention adopts the following technical solution: This lifting pressure roller frame structure includes a conveying platform and a pressure roller frame. The pressure roller frame is disposed above the conveying platform. The pressure roller frame includes a support plate. The top surface of the support plate has an opening for the ball bearings to pass through. The bottom surface of the support plate has multiple limiting holes for the ball bearings to protrude. The pressure roller frame also includes a pressure bar. The pressure bar is located above the opening. One end of the pressure roller frame is hinged to the conveying platform to form a hinge axis, and the pressure roller frame swings around the hinge axis.

[0005] In this scheme, the pressure roller frame swings and rises at a certain angle around the hinge axis, allowing the operator to reach between the pressure roller frame and the conveyor platform to clean and remove paper and other printing materials. The pressure bar restricts the ball bearings from swinging out of the tray through the opening.

[0006] Preferably, the balls include steel balls and glass balls.

[0007] In this solution, the paper will deform due to changes in ambient temperature and humidity, and factors such as the friction between the paper and the belt during the paper feeding process and the deviation of the adsorption force of the lower platen will cause the paper to deviate during its journey. Adjusting the number of steel balls and glass balls to obtain different substrate pressures will correct the paper deviation.

[0008] Preferably, the conveying direction is defined as from front to back, the front end of the pressure roller frame is hinged to the conveying platform, and the rear end of the pressure roller frame is drivenly connected to the cylinder output shaft.

[0009] In this solution, the conveyor platform connects with the subsequent process. If paper jams occur during the connection process, the cylinder output shaft drives the rear end of the pressure roller frame to lift for targeted cleaning.

[0010] Preferably, the tray is provided with a mounting base, the pressure strip is rotatably mounted on the mounting base, the pressure strip has a bead-blocking state and a bead-removing state, and the pressure strip rotates to switch between the bead-blocking state and the bead-removing state.

[0011] In this design, the pressure strip rotates to change the sealing of the opening, making switching convenient.

[0012] Preferably, the pressure roller frame includes longitudinal beams and crossbeams. One end of the longitudinal beam is hinged to the conveying platform, and the other end of the longitudinal beam is drivenly connected to the cylinder output shaft. Multiple crossbeams are mounted between the longitudinal beams on both sides. The support plate is provided with a fixing seat. The fixing seat is provided with an installation groove for the crossbeams to pass through. The fixing seat is provided with a telescopic fixing member. The groove wall of the installation groove is provided with a through hole for the fixing member to pass through.

[0013] In this design, the drive beam lifts the pressure roller frame as a whole, and loosening the fasteners allows the tray to be adjusted left and right to accommodate different sizes of printing substrates.

[0014] Preferably, the other end of the longitudinal beam is provided with an abutment block, and the cylinder output shaft abuts against the abutment block.

[0015] In this design, the cylinder output shaft and the abutment block abut against the lifting pressure roller frame, making the connection simple.

[0016] Preferably, the abutment block is L-shaped, and a connecting rod is connected between the two abutment blocks.

[0017] In this design, the connecting rod increases the overall connection strength of the pressure roller frame.

[0018] Preferably, the pressure roller frame further includes a pressure strip, which extends in the front-to-back direction.

[0019] In this design, the pressure strips prevent the edges of the substrate from curling up.

[0020] Preferably, the conveying platform is equipped with a suction conveyor belt.

[0021] In this design, the suction conveyor belt creates an attractive force below the substrate, which, together with the ball bearings, effectively limits the position of the substrate.

[0022] The beneficial effects of this utility model are as follows: the pressure roller frame swings and rises at a certain angle around the hinge axis, allowing the operator to reach between the pressure roller frame and the conveyor platform to clean and remove paper and other printing materials; the pressure bar restricts the ball bearings from detaching from the tray through the opening; adjusting the number of steel balls and glass balls obtains different printing pressures, achieving counterweight; the rotation of the pressure bar changes the sealing of the opening, making switching convenient. Therefore, this utility model has substantial features and progress compared with the prior art. Attached Figure Description

[0023] The following description, in conjunction with the accompanying drawings, details the embodiments and working principles of this utility model.

[0024] Figure 1 This is a three-dimensional structural diagram of the present invention.

[0025] Figure 2 This is a schematic diagram of the structure of the medium pressure wheel frame of this utility model.

[0026] Figure 3 This is a schematic diagram of the structure of the medium pressure wheel frame when it is lowered.

[0027] Figure 4 This is a schematic diagram of the structure of the medium pressure wheel frame when it is lifted.

[0028] In the diagram: 1. Conveying platform; 2. Pressure roller frame; 3. Pallet; 4. Pressure strip; 5. Mounting base; 6. Longitudinal beam; 7. Cross beam; 8. Fixed bracket; 9. Mounting groove; 10. Fastener; 11. Abutment block; 12. Connecting rod; 13. Pressure strip; 14. Suction conveyor belt; 15. Ball bearing; 16. Cylinder. Detailed Implementation

[0029] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the implementation of the present utility model, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the scope of protection of the present utility model.

[0030] In the description of this application, it should be understood that the terms "upper" and "lower" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this application.

[0031] In the description of this application, the terms "first," "second," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated.

[0032] See appendix Figure 1-4In one embodiment of this invention, a lifting pressure roller frame structure is provided, including a conveying platform 1 and a pressure roller frame 2. The pressure roller frame 2 is disposed above the conveying platform 1. The conveying platform 1 is provided with a suction conveyor belt 14. The pressure roller frame 2 includes a support plate 3. The top surface of the support plate 3 is provided with an opening for the ball bearing 15 to pass through. The bottom surface of the support plate 3 is provided with multiple limiting holes for the ball bearing 15 to protrude. The ball bearing 15 includes steel balls and glass balls.

[0033] The pressure roller frame 2 further includes a pressure strip 4 and a pressure edge strip 13. The pressure edge strip 13 extends in the front-to-back direction. The pressure strip 4 is located above the opening. The support plate 3 is provided with a mounting seat 5. The pressure strip 4 is rotatably mounted on the mounting seat 5. The pressure strip 4 has a bead-blocking state and a bead-retrieving state. The pressure strip 4 rotates to switch between the bead-blocking state and the bead-retrieving state, defining the conveying direction as from front to back. The pressure roller frame 2 includes a longitudinal beam 6 and a transverse beam 7. One end of the longitudinal beam 6 is connected to the conveying plate. The platform 1 is hinged, and the other end of the longitudinal beam 6 is provided with an abutment block 11. The output shaft of the cylinder 16 abuts against the abutment block 11. The abutment block 11 is L-shaped, and a connecting rod 12 is connected between the two abutment blocks 11. Multiple crossbeams 7 are mounted between the two longitudinal beams 6. The support plate 3 is provided with a fixing seat 8. The fixing seat 8 is provided with an installation groove 9 for the crossbeams 7 to pass through. The fixing seat 8 is provided with a telescopic fixing member 10. The groove wall of the installation groove 9 is provided with a through hole for the fixing member 10 to pass through.

[0034] In this embodiment, the substrate (paper) is fed from the feeder to the position before the printing roller. This is the paper's travel distance on the conveyor platform 1. During operation, the suction conveyor belt 14 sucks up the substrate, and the ball bearings 15 press the substrate against the surface of the suction conveyor belt 14. The edge pressing strip 13 restricts the edge of the substrate. When the substrate size changes, the pressure strip 4 is rotated to adjust the number of steel balls and glass balls to change the pressure. The fasteners are loosened, and the left and right adjustment of the support plate 3 makes the pressure distribution uniform. The fasteners are then tightened to abut against the crossbeam 7 to complete the fixation. The adjustment of the edge pressing strip 13 is done in the same way. When the machine is stopped for cleaning, the cylinder 16 is activated to lift the abutment block 11, which in turn raises the pressure roller frame 2 to a certain angle, allowing the operator to reach in for cleaning. The suction conveyor belt 14 is a mature technology. The pressure roller frame 2 is also equipped with pressure rollers and ball bearings 15. The front end of the tray 3 is raised to allow the printing material to enter. The fixing part 10 is threadedly connected to the fixing bracket 8. The pressure strip 4 is provided with threaded holes for fasteners to connect the pressure strip 4 to the mounting base 5. As long as the fasteners are not screwed into place, the pressure strip 4 can rotate around the fasteners. The power source is not limited to the cylinder 16, but can also be a hydraulic cylinder, motor, etc.

[0035] In other alternative embodiments, the cylinder 16 body is hinged to the conveying platform 1, and the cylinder 16 output shaft is hinged to the other end of the longitudinal beam 6.

[0036] The above description represents the preferred embodiment of this utility model. It should be noted that the scope of protection of this utility model is not limited thereto. For those skilled in the art, various improvements, modifications, or equivalent substitutions can be made without departing from the equivalent inventive concept disclosed in this utility model, and these can also be considered as part of the scope of protection of this utility model.

Claims

1. A lifting type compression roller frame structure, comprising a conveying platform (1) and a compression roller frame (2), the compression roller frame (2) is arranged above the conveying platform (1), the compression roller frame (2) comprises a supporting plate (3), the top surface of the supporting plate (3) is provided with an opening for the ball (15) to pass through, and the bottom surface of the supporting plate (3) is provided with a limiting opening for the ball (15) to be exposed, characterized in that: The pressure roller frame (2) also includes a pressure bar (4), which is located above the opening. One end of the pressure roller frame (2) is hinged to the conveying platform (1) to form a hinge axis, and the pressure roller frame (2) swings around the hinge axis.

2. The lifting pressure roller frame structure as described in claim 1, characterized in that: The ball bearings (15) include steel balls and glass balls.

3. The lifting pressure roller frame structure as described in claim 2, characterized in that: The conveying direction is defined as from front to back. The front end of the pressure roller frame (2) is hinged to the conveying platform (1), and the rear end of the pressure roller frame (2) is connected to the output shaft of the cylinder (16) via a drive.

4. The lifting pressure roller frame structure as described in claim 1, characterized in that: The tray (3) is provided with a mounting base (5), and the pressure strip (4) is rotatably mounted on the mounting base (5). The pressure strip (4) has a bead-blocking state and a bead-retrieving state, and the pressure strip (4) rotates to switch between the bead-blocking state and the bead-retrieving state.

5. The lifting pressure roller frame structure as described in claim 3, characterized in that: The pressure roller frame (2) includes a longitudinal beam (6) and a cross beam (7). One end of the longitudinal beam (6) is hinged to the conveying platform (1), and the other end of the longitudinal beam (6) is connected to the output shaft of the cylinder (16). Multiple cross beams (7) are mounted between the longitudinal beams (6) on both sides. The support plate (3) is provided with a fixed bracket (8). The fixed bracket (8) is provided with an installation groove (9) for the cross beam (7) to pass through. The fixed bracket (8) is provided with a telescopic fixing member (10). The groove wall of the installation groove (9) is provided with a through hole for the fixing member (10) to pass through.

6. The lifting pressure roller frame structure as described in claim 5, characterized in that: The other end of the longitudinal beam (6) is provided with an abutment block (11), and the output shaft of the cylinder (16) abuts against the abutment block (11).

7. The lifting pressure roller frame structure as described in claim 6, characterized in that: The abutment block (11) is L-shaped, and a connecting rod (12) is connected between the two abutment blocks (11).

8. The lifting pressure roller frame structure as described in claim 1, characterized in that: The pressure roller frame (2) also includes a pressure strip (13) which extends in the front-to-back direction.

9. The lifting pressure roller frame structure as described in claim 1, characterized in that: The conveying platform (1) is equipped with a suction conveyor belt (14).

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