Paperboard turnover device for printing

Abstract

The utility model relates to the technical field of turnover devices, and discloses a paperboard turnover device for printing, which comprises a base, the upper surface of the base is provided with a first fixing groove, and the right side wall of the inner cavity of the first fixing groove is hinged with a first cylinder through a hinge seat. According to the paperboard turnover device for printing, when a paperboard for printing is turned over, the paperboard for printing is placed on the upper surface of a turnover plate and located between the opposite sides of a front side clamping plate and a rear side clamping plate, and then electric push rods on the front side and the rear side of the upper surface of the turnover plate are started at the same time; then, output shafts of electric push rods on the front side and the rear side drive clamping plates on the front side and the rear side to synchronously move in the opposite directions on the upper surface of the overturning plate and clamp and fix the printing paperboard placed on the upper surface of the overturning plate, and anti-skid layers fixed to the opposite sides of the clamping plates on the front side and the rear side can improve the clamping and fixing stability of the printing paperboard; and therefore, the paperboard for printing can be conveniently overturned, and the overturning stability is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of turning devices, in particular to a turning device for printing paperboard. Background Art

[0002] With the development of society, common printing machines in the industrial printing industry can only print on one side. Therefore, when paper needs to be printed on both sides, it is necessary to turn the paper over and print it a second time. This process requires a turning device.

[0003] For example, Chinese patent CN219258985U discloses a cardboard printing and turning device. It comprises a frame, a slide, a turning assembly, and a conveyor belt assembly. The turning assembly includes a rotating shaft and a plurality of turning rod assemblies spaced apart on the shaft. The turning rod assembly comprises a plurality of turning rods arranged in a circumferentially radial array. A turning plate is rotatably connected to the base of the turning rod on the side that contacts the cardboard. The turning plate is equipped with a pressure block. When the pressure block is located above the corresponding turning rod, gravity exerts a frictional deceleration effect on the cardboard. However, when the pressure block is located below the corresponding turning rod, the pressure block droops with the turning plate, causing the cardboard to fall without being restrained by the pressure block. With each rotation of the rotating shaft, a cardboard sheet is removed from the slide and simultaneously dropped from the turning assembly onto the conveyor belt assembly. The conveyor belt assembly then transports the sheet to the feed inlet of the cardboard printing press at the rear, achieving continuous and automatic turning of the cardboard.

[0004] Although the above patent has many advantages, when the flipping device in the patent flips the cardboard, since the cardboard is not clamped and fixed on the flipping device, the cardboard is prone to displacement and slipping when flipping, which makes it inconvenient to flip and reduces the stability of the cardboard flipping. Utility Model Content

[0005] In response to the shortcomings of the existing technology, the utility model provides a cardboard turning device for printing, which has the advantages of facilitating the turning of the cardboard and improving the stability of the cardboard turning. It solves the problem that when the turning device turns the cardboard, the cardboard is not clamped and fixed on the turning device, and the cardboard is easily displaced and slipped when turning, which makes it inconvenient to turn and reduces the stability of the cardboard turning.

[0006] To achieve the above-mentioned object, the present invention provides the following technical solution: a printing cardboard turning device, comprising a base, a first fixed groove being formed on the upper surface of the base, a first cylinder being hingedly connected to the right side wall of the inner cavity of the first fixed groove via a hinge seat, a turning plate being hingedly connected to the upper surface of the base and located outside the first fixed groove via a hinge seat, the outer side of the output shaft of the first cylinder being hingedly connected to the lower surface of the turning plate via a hinge seat, fixing mechanisms for turning the printing cardboard being provided on the front and rear sides of the upper surface of the turning plate, a buffer mechanism for buffering the turning structure during turning is provided on the upper surface of the base and located on the left side of the first fixed groove, and a conveying assembly being provided on the upper surface of the base and located on the right side of the turning plate;

[0007] The fixing mechanism includes an electric push rod fixed on the front and rear sides of the upper surface of the flip plate, and a clamping plate is fixed on the outer side of the output shaft of the electric push rod on the front and rear sides. A limiting groove is provided on the upper surface of the flip plate and on the left and right sides of the electric push rod. A limiting slider is fixed on the lower surface of the front and rear clamping plates and on the left and right sides of the electric push rod. The limiting slider is slidably connected to the inside of the limiting groove, and an anti-slip layer is fixed on the opposite side of the clamping plates on the front and rear sides.

[0008] Furthermore, the conveying assembly includes a second fixed groove opened on the upper surface of the base and located on the right side of the flip plate, the right side wall of the inner cavity of the second fixed groove is hinged to a second cylinder through a hinge seat, the upper surface of the base and located on the right side of the flip plate and on the outer side of the second fixed groove is hinged to a crawler conveyor backplate through a hinge seat, and the outer side of the output shaft of the second cylinder is hingedly connected to the right side of the crawler conveyor backplate through a hinge seat.

[0009] By adopting this technical solution, the turned cardboard can be transported.

[0010] Furthermore, the limiting sliding grooves on the left and right sides are symmetrically distributed on the left and right sides of the longitudinal center axis of the flip plate, and the electric push rods on the front and rear sides are symmetrically distributed on the front and rear sides of the transverse center axis of the flip plate.

[0011] By adopting this technical solution, the stability of the clamping plate in moving forward and backward is improved.

[0012] Furthermore, the limiting slider moves linearly forward and backward inside the limiting sliding groove, and the limiting sliders on the left and right sides are symmetrically distributed on the left and right sides of the longitudinal center axis of the clamping plate.

[0013] By adopting this technical solution, the limiting slider slides inside the limiting slide groove to perform linear sliding of the clamping plates on the front and rear sides, thereby improving the sliding stability.

[0014] Furthermore, the anti-slip layer is a rubber layer, and the clamping plate is located on the longitudinal center axis of the flip plate.

[0015] By adopting this technical solution, the stability of the cardboard clamping and fixing is improved.

[0016] Furthermore, the buffer mechanism includes a buffer groove opened on the upper surface of the base and located on the left side of the first fixed groove, the bottom wall of the buffer groove inner cavity is fixed with a mounting block by bolts, the upper surface of the mounting block is fixed with a buffer block, and a placement groove is opened on the lower surface of the flip plate and located on the left side of the first fixed groove, and the upper surface of the buffer block is in contact with the top wall of the placement groove inner cavity.

[0017] By adopting this technical solution, the turning plate can be cushioned when turning over.

[0018] Furthermore, the buffer block is a rubber block, and the shape of the buffer block is a rectangular body with a solid interior.

[0019] By adopting this technical solution, the stability of the flip plate structure during flipping is improved, and the possibility of damage caused by impact during flipping is reduced.

[0020] Furthermore, the mounting block includes a mounting plate, and a fixing block is fixed to the upper surface of the mounting plate.

[0021] By adopting this technical solution, it is convenient to remove the rubber block from the inside of the placement groove.

[0022] Compared with the existing technology, the technical solution of this application has the following beneficial effects:

[0023] 1. The printing cardboard turning device turns over the printing cardboard, and when turning over the printing cardboard, the printing cardboard is placed on the upper surface of the turning plate and located between the opposite sides of the front and rear clamping plates, and then the front and rear electric push rods on the upper surface of the turning plate are started at the same time, and then the output shafts of the front and rear electric push rods drive the front and rear clamping plates to move synchronously in relative directions on the upper surface of the turning plate and clamp and fix the printing cardboard placed on the upper surface of the turning plate. The anti-slip layer fixed on the opposite sides of the front and rear clamping plates can improve the stability of clamping and fixing the printing cardboard, thereby facilitating the turning of the printing cardboard and improving the stability of the turning.

[0024] 2. In the printing cardboard turning device, when the turning plate turns to the left on the upper surface of the base, the buffer block fixed on the upper surface of the mounting block can buffer the turning plate, which can effectively prevent the left side of the lower surface of the turning plate from rubbing and colliding with the left side of the upper surface of the base during turning, thereby improving the turning stability of the turning plate. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 This is a schematic diagram of the structure of the utility model;

[0026] Figure 2This is a top view of the fixing mechanism of the present utility model;

[0027] Figure 3 This is a schematic diagram of the buffer mechanism of the utility model.

[0028] In the figure: 1. Base; 2. First fixing groove; 3. First cylinder; 4. Flip plate; 5. Fixing mechanism; 501. Electric push rod; 502. Clamping plate; 503. Limiting slide groove; 504. Limiting slider; 505. Anti-slip layer; 6. Buffer mechanism; 601. Buffer groove; 602. Mounting block; 603. Buffer block; 604. Placement groove; 7. Second fixing groove; 8. Second cylinder; 9. Crawler conveyor back plate. DETAILED DESCRIPTION

[0029] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0030] See also Figure 1 In this embodiment, a printing cardboard turning device includes a base 1, a first fixed groove 2 is opened on the upper surface of the base 1, and the right side wall of the inner cavity of the first fixed groove 2 is hinged to a first cylinder 3 through a hinge seat. A turning plate 4 is hinged to the outer side of the first fixed groove 2 on the upper surface of the base 1 through a hinge seat. The outer side of the output shaft of the first cylinder 3 is hingedly connected to the lower surface of the turning plate 4 through a hinge seat. A fixing mechanism 5 for facilitating the turning of the printing cardboard and improving the turning stability is provided on the front and rear sides of the upper surface of the turning plate 4. The fixing mechanism 5 can facilitate the turning and improve the turning stability of the printing cardboard. A buffer mechanism 6 for cushioning the turning structure during turning is provided on the upper surface of the base 1 and located on the left side of the first fixed groove 2. The buffer mechanism 6 can cushion the turning plate 4 during turning. A conveying assembly is provided on the upper surface of the base 1 and located on the right side of the turning plate 4.

[0031] The conveying assembly includes a second fixed groove 7 opened on the upper surface of the base 1 and located on the right side of the flip plate 4. The right side wall of the inner cavity of the second fixed groove 7 is hinged to a second cylinder 8 through a hinge seat. The upper surface of the base 1, located on the right side of the flip plate 4 and on the outside of the second fixed groove 7, is hinged to a crawler conveyor backboard 9 through a hinge seat. The outer side of the output shaft of the second cylinder 8 is hingedly connected to the right side of the crawler conveyor backboard 9 through a hinge seat. The crawler conveyor backboard 9 is a prior art. The crawler conveyor backboard 9 flips to the right and then drives the printing cardboard to flip to be parallel to the base 1. At this time, the printing cardboard is flipped successfully, and the crawler conveyor backboard 9 can carry and transport the flipped printing cardboard.

[0032] See also Figure 2 In order to facilitate the flipping of the printing cardboard and improve the flipping stability, in this embodiment, the fixing mechanism 5 includes electric push rods 501 fixed on the front and rear sides of the upper surface of the flip plate 4, and clamping plates 502 are fixed on the outer sides of the output shafts of the front and rear electric push rods 501. Limiting slide grooves 503 are provided on the upper surface of the flip plate 4 and on the left and right sides of the electric push rod 501. Limiting sliders 504 are fixed on the lower surfaces of the front and rear clamping plates 502 and on the left and right sides of the electric push rod 501. The limiting sliders 504 are slidably connected to the limiting slide grooves 503. Inside, the opposite sides of the front and rear clamping plates 502 are fixed with anti-slip layers 505. When the printed cardboard is turned over, the printed cardboard is placed on the upper surface of the turning plate 4 and between the opposite sides of the front and rear clamping plates 502. Then, the electric push rods 501 on the front and rear sides of the upper surface of the turning plate 4 are started at the same time. Then, the output shafts of the front and rear electric push rods 501 drive the front and rear clamping plates 502 to move synchronously in relative directions on the upper surface of the turning plate 4 and clamp and fix the printing cardboard placed on the upper surface of the turning plate 4.

[0033] In this embodiment, the left and right side limiting grooves 503 are symmetrically distributed on the left and right sides of the longitudinal center axis of the flip plate 4, the front and rear electric push rods 501 are symmetrically distributed on the front and rear sides of the transverse center axis of the flip plate 4, and the limiting slider 504 moves linearly back and forth inside the limiting groove 503. The left and right side limiting sliders 504 are symmetrically distributed on the left and right sides of the longitudinal center axis of the clamping plate 502. The anti-slip layer 505 is a rubber layer, and the clamping plate 502 is located on the longitudinal center axis of the flip plate 4.

[0034] It should be noted that the anti-slip layer 505 fixed on one side of the front and rear clamping plates 502 can improve the stability of the clamping and fixing of the printing cardboard, making it easier to flip the printing cardboard and improve the stability of the flipping.

[0035] See also Figure 3 In order to buffer the flip plate 4 when it flips, in this embodiment, the buffer mechanism 6 includes a buffer groove 601 opened on the upper surface of the base 1 and located on the left side of the first fixed groove 2. The bottom wall of the inner cavity of the buffer groove 601 is fixed with a mounting block 602 by bolts, and the upper surface of the mounting block 602 is fixed with a buffer block 603. A placement groove 604 is opened on the lower surface of the flip plate 4 and located on the left side of the first fixed groove 2. The upper surface of the buffer block 603 is in contact with the top wall of the inner cavity of the placement groove 604. When the flip plate 4 flips on the upper surface of the base 1, the buffer block 603 fixed on the upper surface of the mounting block 602 can buffer the flip plate 4 when it flips to the left.

[0036] In this embodiment, the buffer block 603 is a rubber block, and the shape of the buffer block 603 is a solid rectangular body. The mounting block 602 includes a mounting plate, and a fixing block is fixed to the upper surface of the mounting plate.

[0037] It should be noted that the left side of the lower surface of the flip plate 4 is prevented from rubbing and colliding with the left side of the upper surface of the base 1 during flipping, thereby improving the flipping stability of the flip plate 4 .

[0038] The working principle of the above embodiment is:

[0039] (1) When turning over the printing cardboard, the printing cardboard is placed on the upper surface of the turning plate 4 and between the opposite sides of the front and rear clamping plates 502. Then, the electric push rods 501 on the front and rear sides of the upper surface of the turning plate 4 are started at the same time. Then, the output shafts of the electric push rods 501 on the front and rear sides drive the front and rear clamping plates 502 to move synchronously in relative directions on the upper surface of the turning plate 4 and clamp the printing cardboard placed on the upper surface of the turning plate 4. The anti-slip layer 505 fixed on the opposite side of the front and rear clamping plates 502 can improve the stability of clamping and fixing the printing cardboard. Then, the limiting slider 504 slides inside the limiting slide groove 503. After the cardboard is clamped and fixed on the upper surface of the flip plate 4, the first cylinder 3 is started, and the flip plate 4 and the printing cardboard are flipped to the right. Then, the front and rear electric push rods 501 drive the front and rear clamping plates 502 to loosen the printing cardboard. At this time, the printing cardboard is flipped to the left side of the crawler conveyor back plate 9. At this time, the second cylinder 8 is started again, and the crawler conveyor back plate 9 is flipped to the right and then drives the printing cardboard to flip to be parallel to the base 1. At this time, the printing cardboard is flipped successfully. The crawler conveyor back plate 9 can carry and transport the flipped printing cardboard, thereby facilitating the flipping of the printing cardboard and improving the flipping stability.

[0040] (2) When the flip plate 4 flips over on the upper surface of the base 1, the buffer block 603 fixed on the upper surface of the mounting block 602 can buffer the flip plate 4 when flipping to the left, thereby preventing the left side of the lower surface of the flip plate 4 from rubbing and colliding with the left side of the upper surface of the base 1 during flipping, thereby improving the stability of the flip plate 4 when flipping.

[0041] It should be noted that, in this document, relational terms such as first and second, etc., are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply the existence of any such actual relationship or order between these entities or operations. Moreover, the terms "comprises," "comprising," or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article, or device comprising a series of elements includes not only those elements, but also other elements not explicitly listed, or elements inherent to such process, method, article, or device. In the absence of further limitations, an element defined by the phrase "comprising a ..." does not exclude the presence of other identical elements in the process, method, article, or device comprising the element.

[0042] Although the embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations may be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A printing cardboard turning device, comprising a base (1), characterized in that: The upper surface of the base (1) is provided with a first fixed groove (2), and the right side wall of the inner cavity of the first fixed groove (2) is hinged to a first cylinder (3) through a hinge seat. The upper surface of the base (1) and the outer side of the first fixed groove (2) are hinged to a flip plate (4) through a hinge seat. The outer side of the output shaft of the first cylinder (3) is hingedly connected to the lower surface of the flip plate (4) through a hinge seat. The front and rear sides of the upper surface of the flip plate (4) are provided with a fixing mechanism (5) for flipping the printing cardboard. The upper surface of the base (1) and the left side of the first fixed groove (2) are provided with a buffer mechanism (6) for buffering the flip structure when flipping. The upper surface of the base (1) and the right side of the flip plate (4) are provided with a conveying assembly. The fixing mechanism (5) includes an electric push rod (501) fixed on the front and rear sides of the upper surface of the flip plate (4), a clamping plate (502) is fixed on the outer side of the output shaft of the electric push rod (501) on the front and rear sides, and a limiting slide groove (503) is provided on the upper surface of the flip plate (4) and on the left and right sides of the electric push rod (501), and a limiting slider (504) is fixed on the lower surface of the front and rear sides of the clamping plate (502) and on the left and right sides of the electric push rod (501), and the limiting slider (504) is slidably connected to the inside of the limiting slide groove (503), and an anti-slip layer (505) is fixed on the opposite side of the front and rear sides of the clamping plate (502).

2. A printing cardboard turning device according to claim 1, characterized in that: The conveying assembly comprises a second fixed groove (7) opened on the upper surface of the base (1) and located on the right side of the flip plate (4); a second cylinder (8) is hingedly connected to the right side wall of the inner cavity of the second fixed groove (7) through a hinge seat; a crawler conveying back plate (9) is hingedly connected to the upper surface of the base (1) and located on the right side of the flip plate (4) and located on the outer side of the second fixed groove (7) through a hinge seat; and the outer side of the output shaft of the second cylinder (8) is hingedly connected to the right side of the crawler conveying back plate (9) through the hinge seat.

3. The printing cardboard turning device according to claim 1, characterized in that: The left and right limiting slide grooves (503) are symmetrically distributed on the left and right sides of the longitudinal center axis of the flip plate (4), and the front and rear electric push rods (501) are symmetrically distributed on the front and rear sides of the transverse center axis of the flip plate (4).

4. The printing cardboard turning device according to claim 1, characterized in that: The limiting slider (504) moves linearly forward and backward inside the limiting slide groove (503), and the limiting sliders (504) on the left and right sides are symmetrically distributed on the left and right sides of the longitudinal center axis of the clamping plate (502).

5. The printing cardboard turning device according to claim 1, characterized in that: The anti-slip layer (505) is a rubber layer, and the clamping plate (502) is located on the longitudinal center axis of the flip plate (4).

6. The printing cardboard turning device according to claim 1, characterized in that: The buffer mechanism (6) comprises a buffer groove (601) provided on the upper surface of the base (1) and located on the left side of the first fixing groove (2); a mounting block (602) is fixed to the bottom wall of the inner cavity of the buffer groove (601) by bolts; a buffer block (603) is fixed to the upper surface of the mounting block (602); a placement groove (604) is provided on the lower surface of the flip plate (4) and located on the left side of the first fixing groove (2); and the upper surface of the buffer block (603) is in contact with the top wall of the inner cavity of the placement groove (604).

7. The printing cardboard turning device according to claim 6, characterized in that: The buffer block (603) is a rubber block, and the shape of the buffer block (603) is a rectangular body with a solid interior.

8. The printing cardboard turning device according to claim 6, characterized in that: The mounting block (602) comprises a mounting plate, and a fixing block is fixed on the upper surface of the mounting plate.

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