Printing plate dismounting and replacing device

Abstract

The utility model discloses a printing plate dismounting and replacing device, which belongs to the technical field of film printing and comprises a base plate, vertical plates, rotating shafts and a base station, the two vertical plates are symmetrically and fixedly mounted on the left side and the right side of the top of the base plate, the rotating shafts are rotatably mounted on the tops of the two close side surfaces of the two vertical plates, and a lever type lifting mechanism is mounted on the top of the base station. A rotary material changing mechanism is installed at the top of the base table, two printing plate fixing mechanisms are symmetrically installed at the top of the rotary material changing mechanism, and a plurality of universal trundles are installed at the bottoms of a plurality of supporting legs on the base table respectively. According to the utility model, through the cooperation of the lever type lifting mechanism and the rotary reloading mechanism, an operator can conveniently replace a printing plate, and the downtime of the film printer caused by the replacement of the printing plate is reduced; and through the printing plate fixing mechanism, the new printing plate is kept fixed in the transferring process, and the situation that in the transferring process, the printing plate falls onto the ground, so that gravure of the printing plate is damaged, and the printing effect is affected is avoided.

Description

TECHNICAL FIELD

[0001] The utility model relates to thin film printing technical field, concretely relates to printing plate dismounting and replacing device. BACKGROUND

[0002] Thin film printing is a kind of printing process that prints ink or paint on the surface of thin film, and the continuous improvement of printing mechanical equipment makes thin film printing technology pay more and more attention to improving printing speed and efficiency to meet the demand of mass production.

[0003] Chinese patent CN220864972U discloses a replaceable metal intaglio printing plate roller, which comprises a roller shaft, a roller cylinder, a support disc, a moving rod, a moving bolt and a taper block, the roller cylinder is installed on the roller shaft, the end of the roller shaft is formed with a blind hole, an annular stopper is arranged in the blind hole, the roller cylinder can be assembled on the roller shaft, a limiting groove is formed in the roller cylinder, the support disc is arranged on one side of the roller shaft, one side of the roller cylinder can be matched with the support disc, the moving rod penetrates through the roller shaft, a return spring is sleeved on the moving rod, and a wedge block is integrally formed at the end of the moving rod, the moving bolt penetrates through the annular stopper, and the bottom end of the moving bolt is connected with the taper block, the roller cylinder can be replaced when the roller cylinder is worn to save production cost.

[0004] The material of general printing plate is metal material, and the weight is large, when the printing plate needs to be replaced or cleaned, the original printing plate needs to be disassembled and then the new printing plate is installed, which increases the additional workload and is inconvenient.

[0005] Therefore, the utility model discloses a printing plate dismounting and replacing device to solve the above problems. UTILITY MODEL CONTENTS

[0006] In view of the above shortcomings of the prior art, the utility model provides a printing plate dismounting and replacing device.

[0007] To achieve the above object, the utility model realizes the following technical scheme:

[0008] A printing plate dismounting and replacing device, which comprises a base plate, a vertical plate, a rotating shaft and a base, two vertical plates are symmetrically and fixedly installed on the top of the left and right sides of the base plate,

[0009] Rotating shafts are rotatably installed on the top of the two sides of the two vertical plates close to each other, and the diameter of the rotating shaft is smaller than the hole diameter of the printing plate.

[0010] A lever lifting mechanism is installed on the inner side of the bottom of the base, which facilitates the movement of the printing plate to the designated position and replacement.

[0011] A rotary material changing mechanism is installed on the top of the base.

[0012] The top of the rotating changing mechanism is symmetrically provided with two printing plate fixing mechanisms for fixing the printing plate;

[0013] The bottoms of the plurality of legs of the base are respectively provided with a plurality of universal casters in rolling connection with the top of the base.

[0014] Further, the lever lifting mechanism comprises two cross bars, two telescopic rods, a connecting rod, a movable assembly and a pull rod, the two cross bars are respectively fixedly installed at the left and right sides of the middle part of the inner side of the base, the bottom sides of the two telescopic rods are respectively rotationally installed at the two ends of the two cross bars close to each other, the bottom sides of the two telescopic rods are fixedly connected through the connecting rod, the two ends of the pull rod are respectively fixedly connected with the top ends of the two telescopic rods, and the bottom ends of the two telescopic rods are all connected with the movable assembly.

[0015] Further, the movable assembly comprises two push rods and a push cross bar, the bottom ends of the two telescopic rods are respectively fixedly connected with the bottom ends of the two push rods, and the top ends of the two push rods are fixedly installed with the push cross bar therebetween.

[0016] Further, the rotating changing mechanism comprises a rotating disc, sliding grooves, sliding rods, fixed plates, mounting plates and guide wheels, the rotating disc is rotationally installed at the middle part of the top of the base, two sliding grooves are formed in the top of the rotating disc, the bottom sides of the four sliding rods are respectively inserted into the four sliding grooves and are in limited sliding connection with the rotating disc, the fixed plates are fixedly connected between the bottom sides of the two sliding rods at the front side and between the bottom sides of the two sliding rods at the rear side, the mounting plates are fixedly connected between the top sides of the two sliding rods at the front side and between the top sides of the two sliding rods at the rear side, the mounting plates are U-shaped structures, and the inner sides of the two mounting plates are rotationally installed with a plurality of guide wheels.

[0017] Further, the plurality of guide wheels are linearly and equidistantly distributed along the length direction of the inner sides of the mounting plates.

[0018] Further, the printing plate fixing mechanism comprises a fixed baffle, a supporting rod and a turnover plate, the fixed baffle is fixedly installed at one end of the top of the mounting plate, the supporting rod is fixedly installed at the inner side of the fixed baffle, and one end of the turnover plate is rotationally installed at the other end of the top of the mounting plate.

[0019] Further, the mounting plate is provided with a locking assembly for fixing the turnover plate and the mounting plate.

[0020] Compared with the prior art, the utility model has the advantages that:

[0021] 1、The lever lifting mechanism and the rotating changing mechanism are matched, so that the operator can conveniently replace the printing plate, the downtime of the film printer caused by replacement of the printing plate is reduced, and the practicality of the printing plate replacing device is improved.

[0022] 2. The utility model discloses a printing plate fixing mechanism, makes the new printing plate keep fixed in the transfer process, avoids the new printing plate in the transfer process, falls to the ground and leads to the intaglio of new printing plate to appear breakage and influence the printing effect, further improves the practicality of printing plate replacement device. BRIEF DESCRIPTION OF DRAWINGS

[0023] In order to more clearly illustrate the technical scheme in the embodiments of the utility model or prior art, the following will briefly introduce the drawings needed to be used in the embodiment or prior art description. Obviously, the drawings in the following description are only some embodiments of the utility model, and for those skilled in the art, other drawings can also be obtained according to these drawings without creative labor.

[0024] Figure 1 It is the perspective view of the printing plate dismounting and replacing device of the utility model, Figure 1

[0025] Figure 2 It is the front view of the printing plate dismounting and replacing device of the utility model,

[0026] Figure 3 It is the perspective view of the printing plate dismounting and replacing device of the utility model, Figure 2

[0027] Figure 4 It is the perspective view of the printing plate dismounting and replacing device of the utility model, Figure 2

[0028] The numbers in the drawing respectively represent:

[0029] 1, base plate, 2, vertical plate, 3, rotating shaft, 4, base, 5, lever lifting mechanism, 51, cross bar, 52, telescopic rod, 53, push rod, 54, connecting rod, 55, push cross bar, 56, pull rod, 6, rotary material changing mechanism, 61, rotating disc, 62, sliding groove, 63, sliding rod, 64, fixed plate, 65, mounting plate, 66, guide wheel, 7, printing plate fixing mechanism, 71, fixed baffle, 72, supporting rod, 73, turnover plate, 8, universal caster. DETAILED DESCRIPTION

[0030] In order to make the purpose, technical scheme and advantage of the embodiment of the utility model more clear, the following will combine the drawings in the embodiment of the utility model, and the technical scheme in the embodiment of the utility model is clearly and completely described. Obviously, the described embodiment is a part of the embodiment of the utility model, not all the embodiment. Based on the embodiment in the utility model, all other embodiments obtained by those skilled in the art without creative labor belong to the scope of protection of the utility model.

[0031] ​​​In the following description, the terms "left", "right", "front", "back", "top", "bottom" are oriented in the perspective of a front view.

[0032] In some embodiments, referring to the drawings of the specification Figures 1-4 A printing plate dismounting and replacing device, comprising a base plate 1, a vertical plate 2, a rotating shaft 3 and a base 4, two vertical plates 2 are symmetrically and fixedly installed on the left and right sides of the top of the base plate 1, and the top of the two sides of the vertical plate 2 close to each other is rotatably installed with the rotating shaft 3; the diameter of the rotating shaft 3 is smaller than the diameter of the hole opened on the printing plate.

[0033] A lever lifting mechanism 5 for conveniently moving the printing plate to the set position and replacing is installed on the bottom inner side of the base 4, a rotary material changing mechanism 6 is installed on the top of the base 4, the top front side of the base 4 is provided as a feeding and discharging station, and the top rear side of the base 4 is provided as a mounting station; two printing plate fixing mechanisms 7 for fixing the printing plate are symmetrically installed on the top of the rotary material changing mechanism 6; the bottoms of multiple supporting legs on the base 4 are respectively installed with multiple universal casters 8, and the universal casters 8 are rollingly connected with the top of the base plate 1.

[0034] In the utility model, the operator places the printing plate to be replaced in the rotary material changing mechanism 6 of the mounting station, fixes the new printing plate through the printing plate fixing mechanism 7, then pushes the base 4 to move forward until the rotary material changing mechanism 6 of the feeding and discharging station moves to the downside of the rotating shaft 3, then pulls the lever lifting mechanism 5 downward to lift the rotary material changing mechanism 6 of the feeding and discharging station upward until the top of the rotary material changing mechanism 6 touches the bottom of the original printing plate, then pushes the printing plate to slide from the rotating shaft 3 on one side to the rotating shaft 3 on the other side, when one end of the original printing plate is separated from the rotating shaft 3, since the diameter of the rotating shaft 3 is smaller than the diameter of the hole opened on the printing plate, the original printing plate can be pulled outward, so that the other end of the printing plate is separated from the rotating shaft 3 on the other side, the dismounting of the original printing plate is realized, then the dismounted printing plate is placed in the rotary material changing mechanism 6 of the feeding and discharging station and is fixed through the printing plate fixing mechanism 7, then the lever lifting mechanism 5 is loosened, the rotary material changing mechanism 6 of the feeding and discharging station is reset, the base 4 is pulled backward, the rotary material changing mechanism 6 at the back of the top of the base 4 is rotated to move from the mounting station to the feeding and discharging station, the rotary material changing mechanism 6 with the original printing plate is rotated from the feeding and discharging station to the mounting station, then the operator lifts the rotary material changing mechanism 6 of the feeding and discharging station upward through the lever lifting mechanism 5 and installs the new printing plate to be replaced on the rotating shaft 3, the dismounting and replacing of the printing plate are completed.

[0035] In the utility model, through the cooperation of lever lifting mechanism 5 and rotary material changing mechanism 6, operator is convenient to replace printing plate, and the downtime of film printer caused by replacing printing plate is reduced, and the practicability of printing plate replacing device is improved; through printing plate fixing mechanism 7, new printing plate is kept fixed during transfer, the damage of printing plate caused by falling to the ground during transfer is avoided, the practicability of printing plate replacing device is further improved;

[0036] In some embodiments, the lever lifting mechanism 5 comprises two horizontal rods 51, two telescopic rods 52, two push rods 53, a connecting rod 54, a push horizontal rod 55 and a pull rod 56, the two ends of the two horizontal rods 51 away from each other are fixedly installed on the left and right sides of the middle part of the inner side of the base 4, the bottom side of the two telescopic rods 52 is rotatably installed on the two end parts of the two horizontal rods 51 close to each other, and the bottom side of the two telescopic rods 52 is fixedly connected through the connecting rod 54, the two ends of the pull rod 56 are fixedly connected with the top ends of the two telescopic rods 52, and the bottom end of the two telescopic rods 52 is connected with the movable assembly.

[0037] In some embodiments, the rotary material changing mechanism 6 comprises a rotating disc 61, a sliding groove 62, a sliding rod 63, a fixed plate 64, a mounting plate 65 and a guide wheel 66, the rotating disc 61 is rotatably installed on the top middle part of the base 4, the top front and back sides of the rotating disc 61 are provided with two through sliding grooves 62, the bottoms of the four sliding rods 63 pass through the four sliding grooves 62 and are limitingly and slidably connected with the rotating disc 61, the fixed plates 64 are fixedly connected between the bottoms of the two sliding rods 63 on the front side and between the bottoms of the two sliding rods 63 on the back side, the mounting plates 65 are fixedly connected between the tops of the two sliding rods 63 on the front side and between the tops of the two sliding rods 63 on the back side, the mounting plate 65 is a U-shaped structure, the guide wheels 66 are rotatably installed on the inner sides of the two mounting plates 65, and the guide wheels 66 are linearly and equidistantly distributed along the length direction on the inner sides of the mounting plates 65. The fixed plate 64 on the front side is located above the push horizontal rod 55. One printing plate fixing mechanism 7 is installed on each mounting plate 65.

[0038] In some embodiments, the printing plate fixing mechanism 7 comprises a fixed baffle 71, a supporting rod 72 and a turnover plate 73, the fixed baffle 71 is fixedly installed on one end of the top of the mounting plate 65, the supporting rod 72 is fixedly installed on the inner side of the fixed baffle 71, and one end of the turnover plate 73 is hingedly and rotatably installed on the other end of the top of the mounting plate 65. The top right end of the mounting plate 65 on the front side and the top left end of the mounting plate 65 on the back side are provided with the baffle 71, and the top left end of the mounting plate 65 on the front side and the top right end of the mounting plate 65 on the back side are provided with the turnover plate 73.

[0039] The mounting plate 65 is provided with a locking assembly for fixing the other end of the flip plate 73 to the top of the mounting plate 65. The locking assembly can be a spring lock, bolt or other locking method.

[0040] In this invention, the operator places the new printing plate into the mounting plate 65 at the installation station, and places one end of the new printing plate onto the support rod 72. The operator then rotates the flip plate 73 to lock the other end of the new printing plate. Next, the operator pushes the pull rod 56 forward, causing the base 4 to move forward until the mounting plate 65 at the loading / unloading station moves below the original printing plate. Then, the operator locks the casters 8 and pulls the pull rod 56 backward, extending the two telescopic rods 52. Pulling the pull rod 56 downward causes the tops of the two telescopic rods 52 to rotate downward around the crossbar 51. The bottom end drives the push rod 53 to move upward; during the movement, the top of the push rod 55 will touch the bottom of the fixed plate 64, and then drive the fixed plate 64 and the slide rod 63 to move upward along the sliding groove 62, and drive the mounting plate 65 of the loading and unloading station to move upward together until the guide wheel 66 on the inner side of the mounting plate 65 of the loading and unloading station touches the bottom of the original printing plate. Then the original printing plate is disassembled and the original printing plate is fixed by the support rod 72 and the flip plate 73. Then the pull rod 56 is released and the mounting plate 65 with the original printing plate will reset under its own gravity.

[0041] Next, unlock the swivel casters 8, pull the lever 56 backward, and rotate the mounting plate 65 of the installation station to make the rotating disk 61 rotate, rotating the mounting plate 65 of the installation station to the loading and unloading station. At the same time, the mounting plate 65 with the original printing plate is rotated from the loading and unloading station to the installation station. Then, push the lever 56 forward again until the mounting plate 65 with the new printing plate is moved below the rotating shaft 3. Lock the swivel casters 8, and pull the lever 56 downward to move the mounting plate 65 of the loading and unloading station upward to the set position. Rotate the flip plate 73 to release the lock on the new printing plate, push the printing plate along the guide wheel 66, insert one end of the new printing plate into the rotating shaft 3 on one side, and release the lever 56 to make the mounting plate 65 of the loading and unloading station move down to reset. Then, the operator only needs to install the new printing plate to complete the printing plate disassembly and replacement.

[0042] In this invention, the cooperation of two mounting plates 65 facilitates the replacement of the printing plate, reducing downtime for the film printer caused by printing plate replacement. The support rod 72 and the flip plate 73 ensure that the printing plate remains fixed during transport, preventing it from falling to the ground and causing damage to the gravure printing, thus affecting the printing effect.

[0043] The above examples are only used to illustrate the technical solutions of the present application, and are not intended to limit them; although the present application has been described in detail with reference to the foregoing examples, those skilled in the art should understand that the technical solutions recorded in the foregoing examples can still be modified, or some technical features therein can be replaced by equivalents; and these modifications or replacements will not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of the present application.

Claims

1. A printing plate dismounting and replacing device, comprising a base plate (1), a vertical plate (2), a rotating shaft (3) and a base (4), characterized in that: two vertical plates (2) are symmetrically and fixedly installed on the top of the left and right sides of the base plate (1); two rotating shafts (3) are rotatably installed on the top of the two sides of the two vertical plates (2) close to each other, and the diameter of the rotating shaft (3) is smaller than the aperture of the hole opened on the printing plate; a lever lifting mechanism (5) is installed on the inner side of the bottom of the base (4) to facilitate the movement of the printing plate to the designated position and the replacement; a rotary material changing mechanism (6) is installed on the top of the base (4); two printing plate fixing mechanisms (7) for fixing the printing plate are symmetrically installed on the top of the rotary material changing mechanism (6); a plurality of universal casters (8) are respectively installed on the bottom of the plurality of supporting legs of the base (4), and the universal casters (8) are rollably connected with the top of the base plate (1).

2. The printing plate changing device according to claim 1, characterized in that The lever lifting mechanism (5) comprises crossbars (51), telescopic rods (52), connecting rods (54), movable assemblies and pull rods (56), two crossbars (51) are fixedly installed on the left and right sides of the inner middle part of the base (4) at the two ends away from each other, two telescopic rods (52) are rotatably installed on the two ends of the two crossbars (51) close to each other at the bottom side, and the bottom side of the two telescopic rods (52) are fixedly connected by the connecting rod (54), the two ends of the pull rod (56) are fixedly connected with the top end of the two telescopic rods (52), and the bottom end of the two telescopic rods (52) are connected with the movable assemblies.

3. The printing plate changeover device according to claim 2, characterized in that The movable assembly comprises a push rod (53) and a push crossbar (55), the bottom end of the two telescopic rods (52) are fixedly connected with the bottom end of the two push rods (53), and the top end of the two push rods (53) are fixedly installed with the push crossbar (55) between them.

4. The printing plate changing apparatus according to claim 3, characterized by The rotary material changing mechanism (6) comprises a rotating disc (61), a sliding groove (62), a sliding rod (63), a fixed plate (64), an installation plate (65) and a guide wheel (66), the rotating disc (61) is rotatably installed on the top of the middle part of the base (4), two through sliding grooves (62) are opened on the top of the rotating disc (61) on the front and rear sides, the bottom of the four sliding rods (63) passes through the four sliding grooves (62) and is limitingly and slidably connected with the rotating disc (61), the fixed plate (64) is fixedly connected between the bottom of the two sliding rods (63) on the front side and between the bottom of the two sliding rods (63) on the rear side, the installation plate (65) is fixedly connected between the top of the two sliding rods (63) on the front side and between the top of the two sliding rods (63) on the rear side, the installation plate (65) is a U-shaped structure, and a plurality of guide wheels (66) are rotatably installed on the inner side of the two installation plates (65).

5. The printing plate changing device according to claim 4, wherein The plurality of guide wheels (66) are linearly and equidistantly distributed along the length direction on the inner side of the installation plate (65).

6. The printing plate changeover device according to claim 5, characterized in that The printing plate fixing mechanism (7) comprises a fixing baffle (71), a supporting rod (72) and a turnover plate (73), the fixing baffle (71) is fixedly installed at one end of the top of the mounting plate (65), the supporting rod (72) is fixedly installed at the inner side of the fixing baffle (71), and one end of the turnover plate (73) is hingedly installed at the other end of the top of the mounting plate (65).

7. The printing plate changeover device according to claim 6, characterized in that The mounting plate (65) is provided with a locking assembly for fixing the turnover plate (73) and the mounting plate (65).

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