CN221873530U - Plate displacement preventing mechanism of printing machine - Google Patents

Abstract

The utility model discloses a plate material displacement prevention mechanism of a printing machine, which belongs to the technical field of advertisement production, and comprises a hot stamping machine, a screw slide rail A, a sliding frame A, a screw slide rail B, a sliding frame B, a slide groove A, a sliding bracket, a hot stamping unit and a clamping frame. The screw slide rails A are fixedly installed on both sides of the inner wall of the hot stamping machine, and the sliding frame A is slidably arranged on the side of the screw slide rail A through a slider, and the screw slide rail B is fixedly installed on the side of the sliding frame A. After the hot stamping process is performed by the hot stamping unit controlled by the control panel of the hot stamping machine, the staff releases the clamping frame in the same way, pushes the advertising substrate clamping frame to slide on the surface of the guide roller, pushes the guide roller to rotate through the bearing, drives the advertising substrate and the clamping frames on both sides to slide out of the sliding bracket easily, and completes the taking and placing of the advertising substrate, which is convenient for the staff to take and place the advertising substrate with large specifications.

Description

A plate displacement prevention mechanism for a printing press

Technical Field

The utility model belongs to the technical field of advertisement production, in particular to a plate material displacement prevention mechanism of a printing press.

Background Art

Advertising production is to cut or trim advertising sheets or advertising fabrics into the specifications specified by the advertising design, and then use printing equipment to produce advertising works that can be published, set up, posted, and distributed on the surface of the carrier;

Hot stamping machine is also a kind of printing machine. It can bake any color code, portrait photos, landscape patterns, etc. on porcelain plates, tiles, PVC plates, and metal plates. The working principle is to use a heated hot stamping plate to press the hot stamping foil onto the printed workpiece, melt the adhesive layer of the hot stamping foil, separate the color carrier from the paper base, and heat-press the image color onto the printing surface until the color adheres to the printed surface.

In the existing devices, when hot stamping materials such as plates, it is necessary to limit the substrate to prevent it from deviating or being misaligned during the hot stamping process. Generally, the substrate is limited by hand or fixed with a simple spring assembly. The above operation method makes it slightly inconvenient for workers to take and place materials when processing large-sized materials. In addition, the existing substrate fixing unit is generally fixed and cannot be flexibly moved according to needs.

Utility Model Content

The utility model aims to provide a plate material displacement prevention mechanism for a printing press in order to solve the problem that the above-mentioned hot stamping machine is slightly inconvenient in taking and placing materials.

The technical scheme adopted by the utility model is as follows: a sheet material displacement prevention mechanism of a printing press, comprising a hot stamping machine, a screw slide rail A, a sliding frame A, a screw slide rail B, a sliding frame B, a slide groove A, a sliding bracket, a hot stamping unit and a clamping frame, wherein screw slide rails A are fixedly installed on both sides of the inner wall of the hot stamping machine, a sliding frame A is slidably arranged on the side of the screw slide rail A through a slider, a screw slide rail B is fixedly installed on the side of the sliding frame A, a sliding frame B is slidably arranged below the screw slide rail B through a slider, a hot stamping unit is embedded below the sliding frame B, a slide groove A is embedded at the front and rear sides above the hot stamping machine, sliding brackets are slidably arranged on both sides above the inside of the slide groove A through sliders, a clamping frame is arranged between the two parallel sliding brackets, a pressing mechanism that can firmly limit the advertising board is arranged on the outer side of the clamping frame, a sliding adjustment placement mechanism that is convenient for placing advertising boards of different specifications is arranged on the outer side of the sliding bracket, and a sliding pick-and-place mechanism that is convenient for staff to pick up and place advertising boards is arranged inside the sliding bracket.

Among them, the sliding pick-and-place mechanism is composed of a guide roller, a slide groove B, a slide groove C, a limit frame, a groove, a damping telescopic rod B, a push rod, a limit block and a limit groove B. The sliding bracket is rotatably provided with a guide roller on the top of the sliding bracket through a bearing, the sliding bracket is embedded with a slide groove B on the side, and a limit block is fixedly installed on the front and rear sides of the side of the clamping frame, and the limit block is slidably arranged in the slide groove B, a slide groove C is embedded on the top of the inner wall of the slide groove B, a limit frame is slidably arranged inside and below the slide groove C, a limit groove B is embedded on the top of the limit block, and the limit frame is slidably arranged on the inner side of the limit groove B, a groove is embedded on the side of the limit frame, and the side of the inner wall of the groove is inclined, a push rod is slidably arranged on the side of the slide groove C, and the side of the push rod is inclined, and the push rod is slidably arranged on the inner side of the groove, a damping telescopic rod B is fixedly installed between the top of the limit frame and the top of the inner wall of the slide groove C, and a spring is matched on the outside of the damping telescopic rod B.

The pressing mechanism is composed of an adjusting groove, a limiting groove C, a sliding frame C, a damping telescopic rod C, a limiting block B, a damping telescopic rod D and a pressing plate. The adjusting groove is embedded in the front and rear sides of the side of the clamping frame. The sliding frame C is slidably arranged between the sides of the adjusting groove through a slider. The damping telescopic rod C is fixedly installed on the front and rear sides of the inner wall of the sliding frame C, and a spring is matched on the outside of the damping telescopic rod C. The limiting block B is fixedly installed on the side of the end of the damping telescopic rod C, and the limit block B is below It is arranged in an inclined state, and a limit slot C is embedded on the side of the inner wall of the adjustment slot. There are several limit slots C, which are arranged in parallel at equal distances, and the lower part of the inner wall of the limit slot C is arranged in an inclined state, and the limit block B is slidably arranged on the inner side of the limit slot C. A damping telescopic rod D is fixedly installed on the front and rear sides below the sliding frame C, and a spring is matched on the outside of the damping telescopic rod D. A pressure plate is fixedly installed between the lower ends of the damping telescopic rod D, and the relative surfaces below the pressure plate and above the clamping frame are made of butadiene rubber.

Among them, the sliding adjustment placement mechanism is composed of a limit groove A, a damping telescopic rod A and a limit block A. The limit groove A is embedded at the bottom of the inner wall of the sliding groove A. There are several limit grooves A, which are arranged in parallel in a semicircular shape and at equal distances. The damping telescopic rod A is fixedly installed on both sides of the bottom of the sliding bracket, and a spring is matched on the outside of the damping telescopic rod A. The limit block A is fixedly installed at the bottom of the end of the damping telescopic rod A, and the limit block A is arranged in a semicircular shape.

In summary, due to the adoption of the above technical solution, the beneficial effects of the utility model are:

1. The anti-plate displacement mechanism of this type of printing machine is provided with a sliding pick-and-place mechanism, which enables the staff to coordinate the guide roller, slide groove B, slide groove C, limit frame, groove, damping telescopic rod B, push rod, limit block and limit groove B, and use the push rod to slide freely inside the groove, and squeeze the limit frame to slide freely inside the limit groove B through the damping telescopic rod B, so as to facilitate the staff to take and place large-sized advertising substrates.

2. The anti-plate displacement mechanism of this printing machine is provided with a pressing mechanism, which enables the staff to coordinate between the adjustment slot, the limit slot C, the sliding frame C, the damping telescopic rod C, the limit block B, the damping telescopic rod D and the pressing plate, and utilize the limit block B to slide freely inside the limit slot C through the damping telescopic rod C and the outer spring. The pressing plate generates a thrust to press the advertising plate by squeezing and contracting the damping telescopic rod D and the outer spring, which is convenient for the staff to press and limit advertising substrates of various thicknesses.

3. The anti-sheet material displacement mechanism of this type of printing machine is provided with a sliding adjustment placement mechanism, which allows the staff to cooperate between the limit slot A, the damping telescopic rod A and the limit block A, and use the limit block A to slide freely inside the limit slot A through the damping telescopic rod A and the outer spring. It is convenient for the staff to freely adjust the position of the sliding bracket to achieve the effect of hot stamping on advertising substrates of different specifications.

BRIEF DESCRIPTION OF THE DRAWINGS

FIG1 is a schematic diagram of the front view of the three-dimensional structure of the hot stamping machine of the present invention;

FIG2 is a schematic diagram of the front cross-sectional structure of the hot stamping machine of the present invention;

FIG3 is a schematic diagram of the enlarged structure of A in FIG2 of the present invention;

FIG4 is a schematic diagram of the front view of the three-dimensional structure of the material clamping frame of the utility model;

FIG. 5 is an enlarged schematic diagram of the structure of Example 2 at A in FIG. 2 of the present utility model.

Markings in the figure: 1. hot stamping machine; 101. screw slide rail A; 102. sliding frame A; 103. screw slide rail B; 104. sliding frame B; 105. slide groove A; 106. limit groove A; 2. sliding bracket; 201. damping telescopic rod A; 202. limit block A; 203. guide roller; 204. slide groove B; 3. slide groove C; 301. limit frame; 302. groove; 303. damping telescopic rod B; 304. push rod; 4. hot stamping unit; 5. clamping frame; 501. limit block; 502. limit groove B; 503. adjustment groove; 504. limit groove C; 6. sliding frame C; 601. damping telescopic rod C; 602. limit block B; 603. damping telescopic rod D; 604. pressure plate.

DETAILED DESCRIPTION

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

In the utility model:

Embodiment 1: Referring to FIGS. 1-5, a sheet material displacement prevention mechanism of a printing press includes a hot stamping machine 1, a screw rail A101, a sliding frame A102, a screw rail B103, a sliding frame B104, a slide groove A105, a sliding bracket 2, a hot stamping unit 4 and a clamping frame 5. The screw rails A101 are fixedly installed on both sides of the inner wall of the hot stamping machine 1, and the sliding frame A102 is slidably arranged on the side of the screw rail A101 through a slider, and the screw rail B103 is fixedly installed on the side of the sliding frame A102, and a screw rail B103 is slidably arranged below the screw rail B103 through a slider. A sliding frame B104, a hot stamping unit 4 is embedded under the sliding frame B104, a slide groove A105 is embedded in the front and rear sides above the hot stamping machine 1, sliding brackets 2 are slidably arranged on both sides of the upper part of the slide groove A105, a clamping frame 5 is arranged between the two parallel sliding brackets 2, a pressing mechanism that can firmly limit the position of the advertising board is arranged on the outer side of the clamping frame 5, a sliding adjustment placement mechanism that is convenient for placing advertising boards of different specifications is arranged on the outer side of the sliding bracket 2, and a sliding pick-and-place mechanism that is convenient for staff to pick up and place advertising boards is arranged inside the sliding bracket 2.

1-4, further, the sliding pick-and-place mechanism is composed of a guide roller 203, a slide groove B204, a slide groove C3, a limit frame 301, a groove 302, a damping telescopic rod B303, a push rod 304, a limit block 501 and a limit groove B502;

A guide roller 203 is rotatably arranged on the top of the sliding bracket 2 through a bearing, a slide groove B204 is embedded on the side of the sliding bracket 2, a limit block 501 is fixedly installed on the front and rear sides of the side of the clamping frame 5, and the limit block 501 is slidably arranged in the slide groove B204, a slide groove C3 is embedded on the inner wall of the slide groove B204, a limit frame 301 is slidably arranged at the bottom of the slide groove C3, a limit groove B502 is embedded on the top of the limit block 501, and the limit frame 301 is slidably arranged on the inner side of the limit groove B502, a groove 302 is embedded on the side of the limit frame 301, and the inner wall of the groove 302 is inclined, and a push rod 30 is slidably arranged on the side of the slide groove C3. 4, and the side of the push rod 304 is inclined, and the push rod 304 is slidingly provided with the inner side of the groove 302, a damping telescopic rod B303 is fixedly installed between the upper part of the limit frame 301 and the upper part of the inner wall of the slide groove C3, and a spring is matched with the outer side of the damping telescopic rod B303. When the staff needs to use the hot stamping machine 1 to perform hot stamping processing on the advertising substrate, the two push rods 304 are pushed to slide inside the groove 302 to squeeze the limit frame 301 to slide out of the limit groove B502, driving the damping telescopic rod B303 and the outer spring to contract, loosening the clamping frame 5 and pushing the clamping frame 5 to drive the limit block 501 to slide out of the slide groove B204, removing the clamping frame 5 and then removing the other clamping frame 5 in the same way. After that, the staff place the two clamping frames 5 on both sides of the advertising substrate respectively and clamp the two sides of the advertising substrate, and then two staff members push the two pairs of push rods 304 to slide inside the groove 302 to squeeze the limit frame 301, driving the damping telescopic rod B303 and the outer spring to contract, and after placing the clamping frames 5 on both sides of the advertising substrate on the surface of the guide roller 203 above the sliding bracket 2, the staff pushes the advertising substrate to drive the clamping frames 5 to slide on the surface of the guide roller 203, and pushes the guide roller 203 to rotate through the bearing, driving the advertising substrate and the clamping frames 5 on both sides to easily slide back to their original positions, and then releases the push rods 304, so that the damping telescopic rod B303 and the outer spring pop out of the limit frame 301 and slide into the limit On the inner side of the positioning slot B502, the clamping rack 5 is limited and fixed, and the staff controls the screw slide rail A101 and the screw slide rail B103 to drive the hot stamping unit 4 to move above the advertising substrate through the sliding rack A102 and the sliding rack B104 respectively, and controls the hot stamping unit 4 to perform hot stamping through the control panel of the hot stamping machine. Then, the staff loosens the clamping rack 5 in the same way, pushes the advertising substrate clamping rack 5 to slide on the surface of the guide roller 203, pushes the guide roller 203 to rotate through the bearing, drives the advertising substrate and the clamping racks 5 on both sides to easily slide out of the sliding bracket 2, and completes the taking and placing of the advertising substrate, which is convenient for the staff to take and place large-sized advertising substrates.

1-4, further, the pressing mechanism is composed of an adjustment slot 503, a limit slot C504, a sliding frame C6, a damping telescopic rod C601, a limit block B602, a damping telescopic rod D603 and a pressing plate 604;

The front and rear sides of the clamping frame 5 are embedded with an adjustment groove 503, and a sliding frame C6 is slidably arranged between the sides of the adjusting groove 503 through a slider. A damping telescopic rod C601 is fixedly installed on the front and rear sides of the inner wall of the sliding frame C6, and a spring is matched with the outer side of the damping telescopic rod C601. A limit block B602 is fixedly installed on the side of the end of the damping telescopic rod C601, and the lower part of the limit block B602 is arranged in an inclined shape. The limit groove C601 is embedded on the side of the inner wall of the adjusting groove 503. 504, there are a plurality of limit grooves C504, which are arranged in parallel at equal distances, and the lower part of the inner wall of the limit groove C504 is arranged in an inclined shape, and the limit block B602 is arranged in a sliding manner on the inner side of the limit groove C504, and a damping telescopic rod D603 is fixedly installed at the front and rear sides below the sliding frame C6, and a spring is matched with the outer side of the damping telescopic rod D603, and a pressing plate 604 is fixedly installed between the lower and upper ends of the damping telescopic rod D603, and the relative surface below the pressing plate 604 and the upper side of the clamping frame 5 The material is butadiene rubber. After the staff removes the two clamping racks 5 from the top of the sliding bracket 2, the staff place the two clamping racks 5 on both sides of the advertising substrate respectively and push the sliding rack C6 to slide downward on the inner side of the adjusting slot 503 through the slider, squeeze the limit block B602 to slide out of the limit slot C504, drive the damping telescopic rod C601 and the outer spring to contract, so that the pressure plate 604 contacts the top of the advertising substrate, and squeeze the damping telescopic rod D603 and the outer spring to contract, so that the contracted damping telescopic rod D603 and the outer spring generate a thrust on the pressure plate 604 to squeeze and clamp the advertising substrate. After the sliding rack C6 slides to a suitable position, the damping telescopic rod C601 and the outer spring pop out the limit block B602 to slide into the inner side of one of the relative limit slots C504, and after the advertising substrate is pressed and clamped, the clamping racks 5 on both sides of the advertising substrate are installed back to their original positions, so that the advertising substrate is placed on the hot stamping machine 1 for hot stamping, which is convenient for the staff to press and limit advertising substrates of various thicknesses.

2-3, further, the sliding adjustment placement mechanism is composed of a limit groove A106, a damping telescopic rod A201 and a limit block A202;

A limiting groove A106 is embedded below the inner wall of the slide groove A105. There are several limiting grooves A106, which are arranged in parallel in a semicircular shape and at equal distances. Damping telescopic rods A201 are fixedly installed on both sides below the sliding bracket 2, and springs are matched on the outside of the damping telescopic rod A201. A limiting block A202 is fixedly installed below the end of the damping telescopic rod A201, and the limiting block A202 is arranged in a semicircular shape. When the staff presses the two clamping racks 5 on both sides of the advertising substrate and needs to adjust the installation position of the sliding bracket 2, the sliding bracket 2 is pushed upward inside the slide groove A105 through the slider. The limit block A202 is squeezed out of the limit slot A106, driving the damping telescopic rod A201 and the outer spring to contract. After the relative sliding bracket 2 is adjusted to a suitable spacing, the damping telescopic rod A201 and the outer spring pop-up limit block A202 slide into the inner side of one of the relative limit slots A106. After limiting the sliding bracket 2, the staff installs the clamping frames 5 on both sides of the advertising substrate back to their original positions, places the advertising substrate above the hot stamping machine 1 for hot stamping, and allows the staff to freely adjust the position of the sliding bracket 2 to achieve the hot stamping effect on advertising substrates of different specifications.

Furthermore, the screw guide rail A101 and the screw guide rail B103 are electrically connected to the battery through the control panel of the hot stamping machine 1, and the hot stamping unit 4 is electrically connected to the battery through the control panel of the hot stamping machine.

Embodiment 2:

As shown in Figure 5, in the utility model, in addition to the embodiment in which a limiting groove A106 is embedded under the inner wall of the slide groove A105, and there are several limiting grooves A106, which are equidistantly arranged in parallel in a semicircular shape, damping telescopic rods A201 are fixedly installed on both sides of the bottom of the sliding bracket 2, and a spring is provided on the outside of the damping telescopic rod A201, and a limiting block A202 is fixedly installed under the end of the damping telescopic rod A201, and the limiting block A202 is arranged in a semicircular shape, there is another implementation method, in which a limiting groove A106 is embedded under the inner wall of the slide groove A105, and there are several limiting grooves A106, which are equidistantly arranged in parallel in a trapezoidal shape, damping telescopic rods A201 are fixedly installed on both sides of the bottom of the sliding bracket 2, and a spring is provided on the outside of the damping telescopic rod A201. A spring is provided, and a limit block A202 is fixedly installed under the end of the damping telescopic rod A201, and the limit block A202 is set in a trapezoidal shape. When the staff pushes the sliding bracket 2 to slide on the inside of the sliding groove A105 through the slider, the limit block A202 is squeezed out of the limit groove A106 to drive the damping telescopic rod A201 and the outer spring to contract. After the relative sliding bracket 2 is adjusted to a suitable spacing, the damping telescopic rod A201 and the outer spring pop out the trapezoidal limit block A202 and slide into the inner side of one of the relative trapezoidal limit grooves A106, so that the trapezoidal limit block A202 and the trapezoidal limit groove A106 have a larger contact area, and the sliding bracket 2 is more stably limited. Compared with the first embodiment, the limiting and fixing effect is better.

Working principle: First, when the staff needs to use the hot stamping machine 1 to perform hot stamping on the advertising substrate, they push the two push rods 304 to slide inside the groove 302 to squeeze the limit frame 301 out of the limit groove B502, drive the damping telescopic rod B303 and the outer spring to contract, release the clamping frame 5 and push the clamping frame 5 to drive the limit block 501 to slide out of the slide groove B204, remove the clamping frame 5 and then remove the other clamping frame 5 in the same way, the staff will place the two clamping frames 5 on both sides of the advertising substrate and push the sliding frame C6 to slide downward on the inner side of the adjusting groove 503 through the slider, squeeze the limit block B602 to slide out of the limit groove C504, drive the damping telescopic rod C601 and the outer spring to contract, and make the clamping frame 5 Plate 604 contacts the top of the advertising substrate and squeezes the damping telescopic rod D603 and the outer spring to contract, so that the contracted damping telescopic rod D603 and the outer spring generate a thrust on the pressure plate 604 to squeeze and clamp the advertising substrate. After the sliding bracket C6 slides to the appropriate position, the damping telescopic rod C601 and the outer spring pop-up limit block B602 slide into the inner side of one of the relative limit grooves C504 to press and clamp the advertising substrate. Then, the staff pushes the sliding bracket 2 to slide over the inside of the sliding groove A105 through the slider, squeezing the limit block A202 to slide out of the limit groove A106 to drive the damping telescopic rod A201 and the outer spring to contract. After the relative sliding bracket 2 is adjusted to the appropriate spacing, the damping telescopic rod The rod A201 and the outer spring pop-up limit block A202 slide into the inner side of one of the relative limit grooves A106 to limit the sliding bracket 2. Finally, two staff members push the two pairs of push rods 304 to slide and squeeze the limit frame 301 inside the groove 302, driving the damping telescopic rod B303 and the outer spring to contract. After placing the clamping frames 5 on both sides of the advertising substrate on the surface of the guide roller 203 above the sliding bracket 2, the staff pushes the advertising substrate to drive the clamping frames 5 to slide on the surface of the guide roller 203, and pushes the guide roller 203 to rotate through the bearing, driving the advertising substrate and the clamping frames 5 on both sides to easily slide back to their original positions, and then releases the push rod 304 to make the damping telescopic rod B303 and the outer spring pop out of the limit position. The bracket 301 slides into the inner side of the limiting groove B502, the clamping rack 5 is limited and fixed, and the staff controls the screw slide rail A101 and the screw slide rail B103 to drive the hot stamping unit 4 to move above the advertising substrate through the sliding rack A102 and the sliding rack B104 respectively, and controls the hot stamping unit 4 to perform hot stamping through the control panel of the hot stamping machine. Then, the staff loosens the clamping rack 5 in the same way, pushes the advertising substrate clamping rack 5 to slide on the surface of the guide roller 203, pushes the guide roller 203 to rotate through the bearing, drives the advertising substrate and the clamping racks 5 on both sides to easily slide out of the sliding bracket 2, and completes the hot stamping of the advertising substrate, and then performs hot stamping on advertising boards of other specifications in the same way.

The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims (7)

1. The utility model provides a prevent sheet displacement mechanism of printing machine, includes thermoprint machine (1), lead screw slide rail A (101), carriage A (102), lead screw slide rail B (103), carriage B (104), spout A (105), carriage (2), thermoprint unit (4) and double-layered work or material rest (5), thermoprint machine (1) inner wall both sides fixed mounting has lead screw slide rail A (101), lead screw slide rail A (101) side is provided with carriage A (102) through the slider slip, carriage A (102) side fixed mounting has lead screw slide rail B (103), lead screw slide rail B (103) below is provided with carriage B (104) through the slider slip, the embedding of carriage B (104) below is provided with thermoprint unit (4), the embedding of the place ahead of thermoprint machine (1) top is provided with spout A (105), inside top both sides of spout A (105) are provided with carriage (2) through the slider slip, two be provided with double-layered work or material rest (5) between carriage (2) top, its characterized in that: the automatic advertising board clamping device is characterized in that a pressing mechanism capable of stably limiting the advertising board is arranged on the outer side of the clamping frame (5), a sliding adjusting and placing mechanism capable of conveniently placing advertising boards of different specifications is arranged on the outer side of the sliding support (2), and a sliding taking and placing mechanism capable of conveniently taking and placing the advertising boards by workers is arranged inside the sliding support (2).

2. The sheet displacement prevention mechanism of a printing machine according to claim 1, wherein: the sliding picking and placing mechanism comprises a guide roller (203), a sliding chute B (204), a sliding chute C (3), a limiting frame (301), a groove (302), a damping telescopic rod B (303), a push rod (304), a limiting block (501) and a limiting groove B (502);

The utility model discloses a damping telescopic rod, including slip bracket (2), stopper (501) and damping telescopic rod B (303), the slip bracket (2) top is provided with guide roller (203) through the bearing rotation, slip bracket (2) side embedding is provided with spout B (204), the front and back side fixed mounting of clamp work or material rest (5) side has stopper (501), and stopper (501) agrees with the slip setting in spout B (204), the embedding of spout B (204) inner wall top is provided with spout C (3), the inside below slip of spout C (3) is provided with spacing (301), stopper (501) top embedding is provided with spacing groove B (502), and spacing (301) agrees with the slip setting in spacing groove B (502) inboard, spacing (301) side embedding is provided with recess (302), the inside side slip of spout C (3) is provided with push rod (304), and push rod (304) slides and be provided with recess (302) supporting inboard, fixed mounting has damping telescopic rod B (303) between spacing (301) top and the inner wall top, and the damping telescopic rod B (303) outside is provided with the spring.

3. The sheet displacement prevention mechanism of a printing machine according to claim 1, wherein: the pressing mechanism consists of an adjusting groove (503), a limiting groove C (504), a sliding frame C (6), a damping telescopic rod C (601), a limiting block B (602), a damping telescopic rod D (603) and a pressing plate (604);

The clamping frame is characterized in that an adjusting groove (503) is embedded in the front and rear sides of the clamping frame (5), a sliding frame C (6) is arranged between the sides of the inner sides of the adjusting groove (503) in a sliding mode through a sliding block, a damping telescopic rod C (601) is fixedly arranged in the front and rear sides of the inner walls of the sliding frame C (6), a spring is arranged on the outer sides of the damping telescopic rod C (601) in a matching mode, a limiting block B (602) is fixedly arranged on the side of the end portion of the damping telescopic rod C (601), a limiting groove C (504) is embedded in the side of the inner walls of the adjusting groove (503), the limiting block B (602) is arranged on the inner side of the limiting groove C (504) in a matching sliding mode, a damping telescopic rod D (603) is fixedly arranged in the front and rear sides of the lower sides of the sliding frame C (6), and a spring is arranged on the outer sides of the damping telescopic rod D (603), and a pressing plate (604) is fixedly arranged between the end portions of the damping telescopic rod D (603).

4. The sheet displacement prevention mechanism of a printing machine according to claim 1, wherein: the sliding adjusting and placing mechanism consists of a limiting groove A (106), a damping telescopic rod A (201) and a limiting block A (202);

Limiting grooves A (106) are embedded below the inner wall of the sliding groove A (105), damping telescopic rods A (201) are fixedly arranged on two sides below the sliding support (2), springs are arranged on the outer sides of the damping telescopic rods A (201) in a matching mode, and limiting blocks A (202) are fixedly arranged below the end portions of the damping telescopic rods A (201).

5. A sheet displacement prevention mechanism for a printing machine as defined in claim 2, wherein: the side of the inner wall of the groove (302) is inclined, and the side of the push rod (304) is inclined.

6. A sheet displacement prevention mechanism for a printing machine as claimed in claim 3, wherein: the limiting block B (602) is arranged obliquely below, the limiting grooves C (504) are arranged in parallel at equal intervals, the lower part of the inner wall of the limiting groove C (504) is arranged obliquely, and the opposite surfaces below the pressing plate (604) and above the clamping frame (5) are made of butadiene rubber.

7. The sheet displacement prevention mechanism of a printing machine according to claim 4, wherein: the limiting grooves A (106) are arranged in a plurality of semicircular equidistant parallel manner, and the limiting blocks A (202) are arranged in a semicircular manner.