Paper deviation rectifying device of printing machine

Abstract

The utility model relates to a paper deviation rectifying device of a printing machine, which effectively solves the problem that paper is difficult to completely rectify after being deflected. According to the technical scheme for solving the problems, the device comprises a rectangular box body, the left side and the right side of the middle of the upper end face of the rectangular box body are each provided with a left sinking groove and a right sinking groove, the upper side of the rectangular box body is provided with two L-shaped plates with L-shaped projections in the front-back direction, each L-shaped plate is composed of a vertical plate and a transverse plate, and the two vertical plates are located on the outer sides of the two transverse plates respectively; the two transverse plates are located on the lower side and located in the sinking grooves in the corresponding sides, the upper end faces of the transverse plates are flush with the upper end face of the rectangular box body, and the L-shaped plates can move inside and outside the sinking grooves. Each L-shaped plate is subjected to inward force and outward force at the same time, and the outward force is smaller than the inward force; the two L-shaped plates move outwards at the same time so that paper can be conveniently placed in, then the two L-shaped plates move inwards at the same time so that the paper can be drawn close to the middle and placed in the middle, and the problem that the paper cannot be completely pushed to the middle can be effectively solved.

Description

Technical Field

[0001] The utility model relates to the field of deviation correction of printing presses, in particular to a paper deviation correction device of a printing press. Background Art

[0002] The existing paper deflection correction method of the printing press, such as the scheme with the authorization announcement number CN220500263U, conveys the paper through the conveyor belt 4, and the paper moves to the middle under the action of the elastic spring 9 through the anti-deflection plates 8 on both sides to achieve the anti-deflection effect. Although it can roughly achieve the effect of deflection correction, it still has the following problems:

[0003] When the paper is located between the two anti-deflection plates 8, there is friction resistance between the paper and between the paper and the conveyor belt. When there are fewer papers, the pressure of the paper is small and the friction resistance is also smaller. The anti-deflection plates on both sides are subject to less resistance and can be moved to the middle to a certain extent. However, when more papers are placed, the resistance on the lower side becomes larger. When the paper deflects to one side, since the two anti-deflection plates 8 are not moved to the middle at the same time, it will cause the paper to deflect to one side and it will be difficult to completely correct it. Summary of the invention

[0004] In view of the above situation, in order to overcome the defects of the prior art, the utility model provides a paper deviation correction device for a printing press, which effectively solves the problem that it is difficult to completely correct the paper after it is deflected.

[0005] The technical solution is a paper deviation correction device for a printing press, comprising a rectangular box body, wherein a left and right sinking groove is respectively provided on the left and right sides of the middle of the upper end surface of the rectangular box body.

[0006] Two L-shaped plates are installed on the upper side of the rectangular box body, and the L-shaped plates are composed of a vertical plate and a horizontal plate. The two vertical plates are located on the outside of the two horizontal plates respectively, and the two horizontal plates are located on the lower side and in the sink grooves on the corresponding sides. The upper end surface of the horizontal plate is flush with the upper end surface of the rectangular box body, and the L-shaped plate can move in and out of the sink groove;

[0007] Each L-shaped plate is subjected to inward and outward forces at the same time, and the outward force is smaller than the inward force. When the inward force is removed, the plates can move outward, and the two L-shaped plates can move inward or outward at the same time.

[0008] A vertical plate is fixed to each of the left and right end surfaces of the rectangular box body, and the upper end surface of the vertical plate is higher than the upper end surface of the rectangular box body. The inner sides of the two vertical plates are located on the upper side of the rectangular box body and each is fixed with a first telescopic rod. The other end of the first telescopic rod is fixed to the vertical plate of the L-shaped plate. A spring is sleeved on the first telescopic rod, one end of the spring is fixed to the vertical plate, and the other end of the spring is fixed to the vertical plate. The spring applies an outward force to the L-shaped plate.

[0009] The bottom of the sink is provided with a clearance groove penetrating into the rectangular box body, the clearance grooves are arranged on the left and right, a fixing block is fixed on the lower end surface of the horizontal plate of each L-shaped plate, the fixing block is placed in the clearance groove, the lower end of the fixing block is placed in the box body through the clearance groove, and the lower end surface of the fixing block is inclined outward;

[0010] There are straight rods placed on the left and right sides of the rectangular box body, a second telescopic rod is fixed to the lower end surface of the rectangular box body, the middle part of the lower end surface of the straight rod is fixed to the upper end of the second telescopic rod, a spring is sleeved on the second telescopic rod, the lower end of the spring is fixed to the lower end surface of the rectangular box body, the upper end of the spring is fixed to the straight rod, and the spring gives an upward force to the straight rod;

[0011] A push block is fixed to the left and right ends of the upper end surface of the straight rod, and the push block on the corresponding side contacts the lower end surface of the fixed block on the corresponding side.

[0012] A rotating wheel is rotatably arranged on the upper side of the two push blocks, and the axis of the rotating wheel is arranged front and back. The push blocks are in contact with the lower end surface of the fixed block through the rotating wheel.

[0013] The front end surface of the rectangular box body is provided with vertically arranged through slots, and the middle of the front end surface of the straight rod is fixed with front and rear arranged flat rods, and the front ends of the flat rods are placed outside the rectangular box body through the through slots.

[0014] The sum of the spring forces on the two first telescopic rods is smaller than the spring force on the second telescopic rod.

[0015] The utility model firstly facilitates the insertion of paper by simultaneously moving two L-shaped plates outwards, and then simultaneously moves the two L-shaped plates inwards to move the paper toward the middle and place it in the middle, which can effectively prevent the problem that the paper is difficult to be completely pushed to the middle. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is the front view of the utility model.

[0017] Figure 2 It is a front sectional view of the utility model.

[0018] Figure 3 It is a top view of the utility model.

[0019] Figure 4 This is a front cross-sectional view of the utility model that only retains the rectangular box body and the vertical plate. DETAILED DESCRIPTION

[0020] The specific implementation of the utility model is further described in detail below in conjunction with the accompanying drawings.

[0021] Depend on Figures 1 to 4 The utility model comprises a rectangular box body 1, and a sink 2 arranged left and right is respectively provided on the left and right sides of the middle of the upper end surface of the rectangular box body 1.

[0022] Two L-shaped plates 3 are installed on the upper side of the rectangular box body 1, and the L-shaped plates 3 are composed of a vertical plate and a horizontal plate. The two vertical plates are respectively located on the outside of the two horizontal plates, and the two horizontal plates are located on the lower side and in the sinking grooves 2 on the corresponding sides. The upper end surface of the horizontal plate is flush with the upper end surface of the rectangular box body 1, and the L-shaped plate 3 can move in and out of the sinking groove 2;

[0023] Each L-shaped plate 3 is subjected to inward and outward forces at the same time, and the outward force is smaller than the inward force. When the inward force is removed, it can move outward, and the two L-shaped plates 3 can move inward or outward at the same time.

[0024] A vertical plate 4 is fixed to each of the left and right end surfaces of the rectangular box body 1, and the upper end surface of the vertical plate 4 is higher than the upper end surface of the rectangular box body 1. The inner sides of the two vertical plates 4 are located on the upper side of the rectangular box body 1, and a first telescopic rod 5 is fixed to each of the two vertical plates 4. The other end of the first telescopic rod 5 is fixed to the vertical plate of the L-shaped plate 3. A spring is sleeved on the first telescopic rod 5, one end of the spring is fixed to the vertical plate 4, and the other end of the spring is fixed to the vertical plate. The spring applies an outward force to the L-shaped plate 3.

[0025] The bottom of the sink 2 is provided with a clearance groove 6 penetrating into the rectangular box body 1, and the clearance grooves 6 are arranged on the left and right. A fixing block 7 is fixed to the lower end surface of the horizontal plate of each L-shaped plate 3, and the fixing block 7 is placed in the clearance groove 6. The lower end of the fixing block 7 is placed in the box body through the clearance groove 6, and the lower end surface of the fixing block 7 is inclined outward;

[0026] There are straight rods 8 placed on the left and right inside the rectangular box body 1, and a second telescopic rod 9 is fixed on the lower end surface of the rectangular box body 1. The middle part of the lower end surface of the straight rod 8 is fixed to the upper end of the second telescopic rod 9. A spring is sleeved on the second telescopic rod 9, and the lower end of the spring is fixed to the lower end surface of the rectangular box body 1. The upper end of the spring is fixed to the straight rod 8, and the spring gives the straight rod 8 an upward force;

[0027] A push block 10 is fixed to each of the left and right ends of the upper end surface of the straight rod 8, and the push block 10 on the corresponding side contacts the lower end surface of the fixed block 7 on the corresponding side;

[0028] When the straight rod 8 moves upward, the push blocks 10 at both ends of the straight rod 8 move the two L-shaped plates 3 inward at the same time through the inclined surface of the lower end surface of the fixed block 7. When the straight rod 8 moves downward, the two L-shaped plates 3 can move outward at the same time.

[0029] A rotating wheel 11 is rotatably disposed on the upper side of the two push blocks 10 , and the axes of the rotating wheel 11 are arranged front to back. The push blocks 10 contact the lower end surface of the fixed block 7 via the rotating wheel 11 .

[0030] The front end surface of the rectangular box body 1 is provided with vertically arranged through slots 12, and a front-to-back arranged flat rod 13 is fixed to the middle of the front end surface of the straight rod 8, and the front end of the flat rod 13 is placed outside the rectangular box body 1 through the through slots 12;

[0031] When the flat rod 13 is pushed to move downward, the flat rod 13 can drive the straight rod 8 to move downward, so that the rotating wheel 11 no longer presses the lower end surface of the fixing block 7.

[0032] The sum of the spring forces on the two first telescopic rods 5 is smaller than the spring force on the second telescopic rod 9;

[0033] When the second spring pushes the straight rod 8 to move upward, the roller on the straight rod 8 can push the fixing block 7 to make the L-shaped plate 3 move inward to overcome the elastic force of the spring on the first telescopic rod 5 .

[0034] Before the utility model is used, the two L-shaped plates 3 are moved to the innermost side of the displacement under the action of the spring of the second telescopic rod 9;

[0035] Before the utility model is used, the rear side of the upper end surface of the rectangular box body 1 is placed under the paper feed wheel on the printing press.

[0036] When the utility model is used, firstly, the paper to be put in is taken with one hand, and the other hand is used to push the flat rod 13 downward, and the flat rod 13 can drive the straight rod 8 to move downward, so that the rotating wheel 11 no longer presses the lower end surface of the fixed block 7, and the two L-shaped plates 3 will move away from each other under the action of the spring on the first telescopic rod 5 at the same time, and then the paper is placed on the inner side of the two L-shaped plates 3, and then the flat rod 13 is released;

[0037] When the flat rod 13 is released, the spring on the second telescopic rod 9 pushes the straight rod 8 to move upward, and the wheels 11 on the push blocks 10 at both ends of the straight rod 8 move the two L-shaped plates 3 inward at the same time via the inclined surface of the lower end surface of the fixed block 7. Since the sum of the spring forces on the two first telescopic rods 5 is less than the spring force on the second telescopic rod 9, the L-shaped plates 3 on both sides move inward at the same time, so that the inserted paper moves closer to the middle until it is completely placed in the middle, which can effectively prevent the problem of paper deflection.

[0038] 1. The utility model first facilitates the insertion of paper by simultaneously moving the two L-shaped plates 3 outward, and then simultaneously moving the two L-shaped plates 3 inward to move the paper toward the middle and place it in the middle, which can effectively prevent the problem that the paper is difficult to be completely pushed to the middle.

[0039] 2. The utility model adopts the design of L-shaped plate 3 so that the paper is placed on the upper side of the horizontal plate, which can prevent the problem that the paper is stuck on the lower side of the vertical plate and cannot be taken out when there are only vertical plates on both sides.

Claims

1. A paper deviation correction device for a printing press, characterized in that: It comprises a rectangular box body (1), wherein a left and right sink groove (2) is respectively provided on the left and right sides of the middle part of the upper end surface of the rectangular box body (1). Two L-shaped plates (3) projected in an L-shape in the front-to-back direction are mounted on the upper side of the rectangular box body (1), the L-shaped plates (3) being composed of a vertical plate and a horizontal plate, the two vertical plates being located on the outsides of the two horizontal plates respectively, the two horizontal plates being located on the lower side and in the sink grooves (2) on the corresponding sides, the upper end surfaces of the horizontal plates being flush with the upper end surfaces of the rectangular box body (1), and the L-shaped plates (3) being able to move in and out of the sink grooves (2); Each L-shaped plate (3) is subjected to inward and outward forces at the same time, and the outward force is smaller than the inward force. When the inward force is removed, the plates can move outward, and the two L-shaped plates (3) can move inward or outward at the same time.

2. A paper deviation correction device for a printing press according to claim 1, characterized in that: A vertical plate (4) is fixed to each of the left and right end surfaces of the rectangular box body (1), the upper end surface of the vertical plate (4) is higher than the upper end surface of the rectangular box body (1), and a first telescopic rod (5) is fixed to each of the inner sides of the two vertical plates (4) located on the upper side of the rectangular box body (1), the other end of the first telescopic rod (5) is fixed to the vertical plate of the L-shaped plate (3), a spring is sleeved on the first telescopic rod (5), one end of the spring is fixed to the vertical plate (4), and the other end of the spring is fixed to the vertical plate, and the spring applies an outward force to the L-shaped plate (3).

3. A paper deviation correction device for a printing press according to claim 2, characterized in that: The bottom of the sink (2) is provided with a clearance groove (6) penetrating into the rectangular box body (1), the clearance grooves (6) are arranged on the left and right, a fixing block (7) is fixed to the lower end surface of the horizontal plate of each L-shaped plate (3), the fixing block (7) is placed in the clearance groove (6), the lower end of the fixing block (7) is placed in the box body through the clearance groove (6), and the lower end surface of the fixing block (7) is inclined outward; A rectangular box body (1) has straight rods (8) placed on the left and right, a second telescopic rod (9) is fixed to the lower end surface of the rectangular box body (1), the middle of the lower end surface of the straight rod (8) is fixed to the upper end of the second telescopic rod (9), a spring is sleeved on the second telescopic rod (9), the lower end of the spring is fixed to the lower end surface of the rectangular box body (1), the upper end of the spring is fixed to the straight rod (8), and the spring applies an upward force to the straight rod (8); A push block (10) is fixed to each of the left and right ends of the upper end surface of the straight rod (8), and the push block (10) on the corresponding side contacts the lower end surface of the fixed block (7) on the corresponding side.

4. A paper deviation correction device for a printing press according to claim 3, characterized in that: A rotating wheel (11) is rotatably disposed on the upper side of the two push blocks (10), and the axes of the rotating wheel (11) are arranged front and rear, and the push blocks (10) contact the lower end surface of the fixed block (7) via the rotating wheel (11).

5. The paper deviation correcting device for a printing press according to claim 3, characterized in that: The front end surface of the rectangular box body (1) is provided with vertically arranged through slots (12), and a front-to-back arranged flat rod (13) is fixed to the middle of the front end surface of the straight rod (8), and the front end of the flat rod (13) is placed outside the rectangular box body (1) through the through slots (12).

6. A paper deviation correcting device for a printing press according to claim 3, characterized in that: The sum of the spring forces on the two first telescopic rods (5) is smaller than the spring force on the second telescopic rod (9).

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