A guide belt deviation prevention structure of a digital printing machine

Abstract

This utility model discloses an anti-deviation structure for the guide belt of a digital printing machine, including a frame, an anti-deviation device, and a guide belt. The frame is equipped with two guide rollers, and the guide belt passes around these rollers. The anti-deviation device includes two blocks and a support plate. The two blocks are located on opposite sides of the guide belt and are mounted to the frame via the support plate. Each block has a limiting surface facing the guide belt, and these limiting surfaces block the guide belt on both sides of its width. The limiting surface of each block has an integrally formed protruding edge, and the protruding edge has a second limiting surface inclined towards the guide belt. The anti-deviation device in this utility model effectively prevents the accumulation of dust and foreign matter, avoiding abrasion of the guide belt's sides and improving the guide belt's service life.

Description

Technical Field

[0001] This utility model relates to printing equipment, and more particularly to a guide belt anti-deviation structure for a digital printing machine. Background Technology

[0002] When a digital printing machine is printing inkjet, the guide rollers rotate, which drives the guide belt to transport the printing media. However, the transmission direction of the guide belt directly affects the printing effect of the printing media on the guide belt.

[0003] Chinese Patent Publication No. CN 204955767 U discloses a digital printing machine and its guide belt anti-deviation device. The key technical points are: a guide belt lower pressure plate with a stop block on the upper surface is installed on the guide belt lower pressure plate seat fixedly installed on the wall plate of the printing machine; a guide belt upper pressure plate with a stepped part is installed above the guide belt lower pressure plate; a limiting groove is formed between the guide belt upper pressure plate and the guide belt lower pressure plate; the stop block is located inside the limiting groove and can block the two sides of the guide belt to prevent the guide belt from deviating during movement.

[0004] In the above solution, the limiting groove formed between the upper pressure plate and the lower pressure plate of the guide belt is prone to dust and foreign objects entering. The accumulation of dust and foreign objects will pollute the production environment. Moreover, the guide belt will be in contact with dust and foreign objects for a long time, which will cause wear on both sides of the guide belt and affect the service life of the guide belt.

[0005] Therefore, this utility model provides a new technical solution to solve the above problems. Utility Model Content

[0006] The purpose of this invention is to provide a guide belt anti-deviation structure for a digital printing machine, which can effectively prevent the accumulation of dust and foreign objects, avoid abrasion of the guide belt side, and improve the service life of the guide belt.

[0007] To achieve the above objectives, the present invention adopts the following technical solution:

[0008] A guide belt anti-deviation structure for a digital printing machine includes a frame, an anti-deviation device, and a guide belt. The frame is equipped with two guide rollers, and the guide belt passes around the guide rollers.

[0009] The anti-deviation device includes two blocks and a support plate. The two blocks are located on both sides of the guide belt and are mounted on the frame via the support plate.

[0010] The stop block has a limiting surface facing the guide belt, and the limiting surfaces of the two stops block respectively block the guide belt on both sides in the width direction.

[0011] The stop block has an integrally formed protruding edge on its limiting surface one, and the protruding edge has a limiting surface two that is inclined toward the guide belt.

[0012] The present invention is further configured such that the two stops in the anti-deviation device are symmetrically installed on both sides of the guide belt.

[0013] The present invention is further configured such that the guide belt is annular and is supported by two guide rollers, the guide belt has an inner side and an outer side, the inner side faces the inner circumference of the guide belt, and the limiting surface on the stop block faces the outer side of the guide belt.

[0014] The present invention is further configured such that the end of the stop block is provided with a notch facing the guide roller, the end of the stop block extends to the outside of the guide roller, and a clearance gap is formed between the notch and the guide roller.

[0015] The present invention is further configured such that the support plate is vertically installed on the frame, and the stop block is fixedly installed on the upper surface of the support plate and is set perpendicular to the support plate.

[0016] The present invention is further configured such that the support plate is provided with a plurality of vertically penetrating positioning holes in the horizontal direction, and the stop block is provided with a waist hole that matches the position of the positioning holes. The stop block is fixedly installed on the support plate by bolts passing through the waist hole and the positioning hole.

[0017] The present invention is further configured such that the frame includes two side wall panels, and the anti-deviation device and the two guide rollers are fixedly installed on the two side wall panels.

[0018] The beneficial effects of this utility model are: by installing an anti-deviation device consisting of a support plate and a stop block on both sides of the guide belt, the structural design of the stop block itself can effectively prevent the accumulation of dust and foreign objects, reduce pollution at the production site, and facilitate cleaning; moreover, reducing the accumulation of dust and foreign objects can also prevent the moving guide belt from being damaged on the side to a certain extent.

[0019] By creating a clearance notch on the side of the stop block near the guide roller, and the shape of the clearance notch being offset from the guide roller, the stop block can extend to the outside of the guide roller and be close to the guide roller to a large extent, which can more effectively prevent the guide roller and the guide belt from shifting at the initial contact position. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the anti-deviation structure of the guide belt of a digital printing machine in this embodiment.

[0021] Figure 2 for Figure 1 Enlarged view at point A.

[0022] Figure 3 This is a cross-sectional view of the guide belt anti-deviation structure of a digital printing machine in this embodiment.

[0023] Figure 4 for Figure 3 Enlarged image.

[0024] Figure 5 This is a longitudinal cross-sectional view of the guide belt anti-deviation structure of a digital printing machine in this embodiment.

[0025] Figure 6 This is a magnified view of point C in the figure.

[0026] Figure 7 This is a schematic diagram of the anti-deviation device in the guide belt anti-deviation structure of a digital printing machine in this embodiment.

[0027] Reference numerals: Frame 1; Wall panel 11; Guide roller 12; Anti-deviation device 2; Support plate 21; Upper end face 211; Positioning hole 212; Stop block 22; Limiting surface one 221; Protruding edge 222; Limiting surface two 223; Notch 224; Waist hole 225; Clearance gap 226; Guide belt 3; Inner side 31; Outer side 32. Detailed Implementation

[0028] 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.

[0029] This embodiment discloses a guide belt anti-deviation structure for a digital printing machine, referring to... Figures 1-7 As shown, it mainly includes a frame 1, an anti-deviation device 2, and a guide belt 3. Two guide rollers 12 are installed on the wall plates 11 on both sides of the frame 1. The guide belt 3 is in a ring shape and passes around the guide rollers 12, and is supported by the rolling of the two guide rollers 12. The anti-deviation device 2 includes two stops 22 and a support plate 21. The two stops 22 are symmetrically installed on both sides of the guide belt 3, and are fixedly installed on the wall plates 11 on both sides of the frame 1 by the support plate 21.

[0030] Reference Figure 4 and Figure 7As shown, the support plate 21 on the anti-deviation device 2 is vertically installed on the two side wall plates 11 of the frame 1. A stop block 22 is fixedly installed on the upper end surface 211 of the support plate 21. The stop block 22 is set perpendicular to the support plate 21 on both sides of the guide belt 3. The stop block 22 has a limiting surface 221 facing the guide belt 3. The limiting surfaces 221 of the two stop blocks 22 respectively block the two sides of the guide belt 3 in the width direction, forming a limit in the width direction of the guide belt 3. Since the guide belt 3 has an inner side 31 and an outer side 32, the inner side 31 faces the inner circumference of the guide belt 3. The limiting surface 221 of the stop block 22 has an integrally formed protruding edge 222. The protruding edge 222 has a limiting surface 223 that is inclined towards the guide belt 3. The limiting surface 223 is set to face the outer side 32 of the guide belt 3. This not only limits the guide belt 3 in the vertical direction, but also effectively prevents the accumulation of dust and foreign objects and avoids the edge damage of the guide belt 3 during movement.

[0031] Reference Figure 1 As shown, when the two stops 22 in the anti-deviation device 2 are installed on the side wall plates 11 of the frame 1 near the upper end of the guide roller 12, the support plate 21 in the anti-deviation device 2 extends to the inner circumference of the guide belt 3. The guide belt 3 is between the upper end surface 211 of the support plate 21 and the second limiting surface 223, forming a vertical limit on the guide belt 3. When the two stops 22 in the anti-deviation device 2 are installed on the side wall plates 11 of the frame 1 near the lower end of the guide roller 12, the support plate 21 extends to the outer side surface 32 of the guide belt 3. The guide belt 3 is located on the upper side of the second limiting surface 223. Under the gravity of the guide belt 3, the guide belt 3 will sink. At this time, the second limiting surface 223 has the function of supporting the guide belt 3.

[0032] Reference Figure 6 As shown, a notch 224 facing the guide roller 12 is provided at the end of the stop block 22. The stop block 22 is fixedly installed on the upper end face 211 of the support plate 21. The end of the stop block 22 extends to the outside of the guide roller 12, forming a certain clearance gap 226 between the guide roller 12 and the notch at the end of the stop block 22. This allows the stop block 22 to be as close as possible to the position where the guide roller 12 and the guide belt 3 begin to contact, achieving the best anti-deviation effect, and also prevents the stop block 22 from contacting the moving guide roller 12.

[0033] Reference Figure 7 As shown, multiple vertically penetrating positioning holes 212 are horizontally opened on the upper end face 211 of the support plate 21, which is vertically installed on the wall panels 11 on both sides of the frame 1. Waist holes 225 that match the known positioning holes 212 are opened on the stop block 22. Then, bolts are used for locking to achieve fixed installation. The stop block 22 can be adjusted in an appropriate position on the support plate 21. By adjusting the position of the stop blocks 22 on both sides of the guide belt 3, it is possible to prevent the stop blocks 22 on both sides of the guide belt 3 from pressing too tightly and causing damage to the edge of the guide belt 3.

[0034] The above description is merely a preferred embodiment of this utility model. The protection scope of this utility model is not limited to the above embodiments. All technical solutions falling within the scope of this utility model's concept are protected. It should be noted that for those skilled in the art, any improvements and modifications made without departing from the principle of this utility model should also be considered within the protection scope of this utility model.

Claims

1. A guide belt deviation prevention structure of a digital printing machine, characterized in that, It includes a frame (1), an anti-deviation device (2), and a guide belt (3). The frame (1) is equipped with two guide rollers (12), and the guide belt (3) passes around the guide rollers (12). The anti-deviation device (2) includes two blocks (22) and a support plate (21). The two blocks (22) are located on both sides of the guide belt (3) and are installed on the frame (1) through the support plate (21). The stop block (22) has a limiting surface (221) facing the guide belt (3), and the limiting surfaces of the two stops (22) respectively block the guide belt (3) on both sides in the width direction; The stop block (22) has an integrally formed protruding edge (222) on its first limiting surface (221), and the protruding edge (222) has a second limiting surface (223) that is inclined toward the guide belt (3).

2. The guide belt anti-deviation structure of a digital printing machine according to claim 1, characterized in that, The two stops (22) in the anti-deviation device (2) are symmetrically installed on both sides of the guide belt (3).

3. The guide belt anti-deviation structure of a digital printing machine according to claim 1, characterized in that, The guide belt (3) is annular and is supported by two guide rollers (12). The guide belt (3) has an inner side (31) and an outer side (32). The inner side (31) faces the inner circumference of the guide belt (3), and the limiting surface (223) on the stop block (22) faces the outer side (32) of the guide belt (3).

4. The guide belt anti-deviation structure of a digital printing machine according to claim 1, characterized in that, The end of the stop (22) is provided with a notch (224) facing the guide roller (12), and the end of the stop (22) extends to the outside of the guide roller (12), and a clearance gap (226) is formed between the notch (224) and the guide roller (12).

5. The guide belt anti-deviation structure of a digital printing machine according to claim 1, characterized in that, The support plate (21) is vertically mounted on the frame (1), and the stop block (22) is fixedly mounted on the upper end face (211) of the support plate (21) and is set perpendicular to the support plate (21).

6. The guide belt anti-deviation structure of a digital printing machine according to claim 1, characterized in that, The support plate (21) has a plurality of vertically penetrating positioning holes (212) arranged horizontally. The stop block (22) has a waist hole (225) that matches the position of the positioning hole (212). The stop block (22) is fixedly installed on the support plate (21) by bolts passing through the waist hole (225) and the positioning hole (212).

7. The guide belt anti-deviation structure of a digital printing machine according to claim 1, characterized in that, The frame (1) includes two side wall panels (11), and the anti-deviation device (2) and two guide rollers (12) are fixedly installed on the two side wall panels (11).

Images