Adjustable plate tail fixing device

Abstract

An adjustable plate tail fixing device comprises a movable clamping plate and a pressing arm, the movable clamping plate is installed on a light drum in a sliding mode, the pressing arm is matched with the movable clamping plate, namely, the pressing arm can swing relative to the movable clamping plate, and when the pressing arm moves towards the movable clamping plate, the pressing arm presses the movable clamping plate downwards so that the movable clamping plate can be opened. The movable clamping plate is arranged on the light drum, so that the plate can be conveniently fixed between the movable clamping plate and the light drum, and at the moment, the position relation of the light drum and the movable clamping plate is adjusted by driving the light drum to rotate, so that the distance between the fixed clamping plate and the movable clamping plate on the light drum is changed, and the plates with different widths can be conveniently fixed; when the pressing arm moves away from the movable clamping plate, the movable clamping plate resets, and the movable clamping plate fixes the plate on the light drum.

Description

Technical Field

[0001] The utility model belongs to the technical field of plate material fixing devices, and in particular relates to an adjustable plate tail fixing device. Background Art

[0002] In platemaking equipment, the plate needs to be fixed on the optical drum. The plate clamp structure that fixes large-format plates on the optical drum on the market is relatively fixed. Only plates of specified formats can be automatically loaded. The rest of the formats require manual intervention and plate loading by sticking adhesive tape. This results in a low degree of automation of the printing equipment, and it is inconvenient to manually fix the plate, which affects the working efficiency of the platemaking equipment. Utility Model Content

[0003] In view of the above shortcomings, the technical problem to be solved by the utility model is to provide an adjustable plate tail fixing device for large-format plate making equipment, which can adjust the plate tail clamp structure for fixing the plate to meet the needs of fixing plates of different sizes and improve the plate fixing efficiency.

[0004] In order to solve the above technical problems, the technical solution adopted by the utility model is:

[0005] An adjustable plate tail fixing device is adapted to a photo drum to fix the plate material on the photo drum. The plate tail fixing device includes a movable clamping plate and a pressing arm. The movable clamping plate is slidably mounted on the photo drum. The pressing arm is adapted to the movable clamping plate. The movable clamping plate is driven to open and close by the pressing arm. When the driving member presses the movable clamping plate, the photo drum is driven to rotate to adjust the positional relationship between the photo drum and the movable clamping plate.

[0006] As a preferred solution of the utility model, the movable clamp is slidably installed on the optical drum through a sliding block assembly, and a pressing groove adapted to the pressing arm is provided on the sliding block assembly, and the pressing arm applies a translational force to the sliding block assembly through the pressing groove.

[0007] As a preferred solution of the utility model, the sliding block assembly includes a sliding block and a swing block swingably mounted on the sliding block, the movable clamp is fixed on the swing block, the pressing groove is arranged on the swing block, and the sliding block is slidably mounted on the optical drum.

[0008] As a preferred solution of the utility model, an adjustment groove is provided on the optical drum, and the movable clamping plate is slidably connected to the adjustment groove to adjust the positional relationship between the movable clamping plate and the optical drum.

[0009] As a preferred solution of the utility model, a pressing head is provided on the pressing arm, and the pressing head is plugged into the movable clamping plate so as to drive the movable clamping plate to move through the pressing head.

[0010] As a preferred solution of the utility model, a pressing drive assembly is connected to the pressing arm, and the pressing drive assembly includes a swing shaft, a mounting block and a driving member. The swing shaft is rotatably installed in the plate tail fixing device, and multiple mounting blocks are evenly arranged on the swing shaft. The pressing arm is fixedly connected to the mounting block, and the driving member is connected to the swing shaft to drive the swing shaft to rotate.

[0011] As a preferred solution of the utility model, both ends of the swing shaft are fixed in the plate tail fixing device through end brackets, and a middle bracket is provided in the middle of the swing shaft to support the swing shaft through the middle bracket.

[0012] As a preferred solution of the utility model, the driving member includes a driving motor, a cam and a cam connecting rod. The driving motor is connected to the cam, and the cam is connected to the mounting block through the cam connecting rod to drive the mounting block to rotate.

[0013] As a preferred solution of the utility model, the plate tail fixing device also includes a plate pressing assembly, and the plate pressing assembly is adapted to the movable clamping plate to press the plate material into the movable clamping plate.

[0014] As a preferred solution of the utility model, the plate pressing assembly includes a roller, a pressure roller swing arm and a swing arm shaft. The roller is rotatably installed between adjacent pressure roller swing arms, and the pressure roller swing arm is rotatably installed on the plate tail fixing device through the swing arm shaft.

[0015] The beneficial effect of the utility model is that the position of the movable clamping plate relative to the photo drum can be adjusted, so that plates of different widths can be fixed on the photo drum, thereby improving the convenience of fixing different plates. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a structural diagram of the tail fixing device of this version.

[0017] Figure 2 It is a schematic diagram of the assembly of the optical drum and the movable splint.

[0018] Figure 3 This is a partial enlarged view of point A.

[0019] Figure 4 is an expanded diagram of the slider component.

[0020] Figure 5 yes Figure 1 A partial enlarged image with one side of the wall panel hidden.

[0021] Figure 6 2 is a schematic diagram of the structure of the end of the press drive assembly.

[0022] Figure 7 It is a schematic diagram of the structure of the pressing arm.

[0023] Figure markings: movable splint 1, pressing arm 2, pressing head 2-1, optical drum 3, adjusting groove 3-1, transverse groove 3-2, limit block 3-3, negative pressure groove 3-4, sliding block assembly 4, pressing groove 4-1, sliding block 4-2, swing block 4-3, spring 4-4, wear-resistant sheet 4-5, swing shaft 5, mounting block 6, driving member 7, driving motor 7-1, cam 7-2, cam connecting rod 7-3, turbine worm gear 7-4, turbine shaft 7-5, end bracket 8, middle bracket 9, roller 10, pressure roller swing arm 11, swing arm shaft 12, fixed splint 13, wall panel 14, connecting block 15, fixed column 16. DETAILED DESCRIPTION

[0024] The utility model is further described below in conjunction with the accompanying drawings.

[0025] The invention discloses an adjustable plate tail fixing device, comprising a movable clamping plate 1 and a pressing arm 2. The movable clamping plate 1 is slidably mounted on the photo drum 3. The pressing arm 2 is adapted to the movable clamping plate 1, that is, the pressing arm 2 can swing relative to the movable clamping plate 1. When the pressing arm 2 moves toward the movable clamping plate 1, the pressing arm 2 presses the movable clamping plate 1 downward, so that the movable clamping plate 1 opens, which is convenient for fixing the plate between the movable clamping plate 1 and the photo drum 3. At this time, the position relationship between the photo drum 3 and the movable clamping plate 1 is adjusted by driving the photo drum 3 to rotate, so that the spacing between the fixed clamping plate 13 on the photo drum 3 and the movable clamping plate 1 changes, thereby facilitating the fixing of plates of different widths. When the pressing arm 2 moves away from the movable clamping plate 1, the movable clamping plate 1 is reset, and the movable clamping plate 1 fixes the plate on the photo drum 3.

[0026] A transverse groove 3-2 and an adjustment groove 3-1 are provided on the optical drum 3. A fixed clamp 13 is installed in the transverse groove 3-2. The front end of the plate is clamped by the fixed clamp 13. The movable clamp 1 is slidably installed in the adjustment groove 3-1. The positional relationship between the movable clamp 1 and the optical drum 3 is adjusted by sliding the movable clamp 1 in the adjustment groove 3-1. The movable clamp 1 is used to clamp the tail end of the plate.

[0027] The adjustment groove 3-1 is arranged along the circumference of the optical drum 3, the transverse groove 3-2 is arranged along the axis of the optical drum 3, and the end of the adjustment groove 3-1 is connected to the transverse groove 3-2, so that the sliding block 4-2 can be installed into the adjustment groove 3-1 through the transverse groove 3-2. A limit block 3-3 is provided at the end of the adjustment groove 3-1, and the sliding block 4-2 is limited and installed in the adjustment groove 3-1 through the limit block 3-3.

[0028] The movable clamping plate 1 is slidably installed in the adjustment groove 3-1 through the sliding block assembly 4. The sliding block assembly 4 includes a sliding block 4-2 and a swing block 4-3 swingably installed on the sliding block 4-2. The movable clamping plate 1 is fixed on the swing block 4-3, and the sliding block 4-2 is slidably installed in the adjustment groove 3-1. In order to facilitate the movable clamping plate 1 to clamp the plate on the photo drum 3 under normal conditions, a spring 4-4 ​​is provided between the swing block 4-3 and the sliding block 4-2. Through the action of the spring 4-4, the end of the movable clamping plate 1 under normal conditions abuts against the photo drum 3.

[0029] In order to facilitate the sliding block assembly 4 to slide relative to the photo drum 3 by the pressing arm 2, a pressing groove 4-1 is provided on the swing block 4-3. When the pressing arm 2 drives the movable clamping plate 1 to open, the end of the pressing arm 2 extends into the pressing groove 4-1. When the movable clamping plate 1 is adjusted in position, the end of the pressing arm 2 is inserted into the pressing groove 4-1, and the photo drum 3 rotates. At this time, the pressing arm 2 applies a translation force to the sliding block assembly 4 through the pressing groove 4-1, so that the photo drum 3 and the sliding block 4-2 slide relative to each other, thereby adjusting the position of the movable clamping plate 1.

[0030] In this embodiment, the pressing groove 4-1 and the movable clamp 1 are respectively arranged on both sides of the swing center of the swing block 4-3. In some preferred embodiments, the distance between the end of the movable clamp 1 and the swing center of the swing block 4-3 is at least three times the distance between the pressing groove 4-1 and the swing center of the swing block 4-3. Preferably, after the movable clamp 1 is opened, the distance between the end of the movable clamp 1 and the photo drum 3 is at least 8 mm, thereby increasing the opening angle of the movable clamp 1, making it easier to fix a thicker plate on the photo drum 3 through the movable clamp 1.

[0031] A wear-resistant sheet 4-5 is provided at the bottom of the sliding block 4-2 to prevent the bottom of the sliding block 4-2 from being worn and to increase the service life of the sliding block 4-2.

[0032] In order to facilitate the connection between the pressing wall 2 and the pressing groove 4-1, a pressing head 2-1 is provided on the pressing arm 2, and the pressing head 2-1 is plugged into the pressing groove 4-1, so that the movable clamping plate 1 and the optical drum 3 are driven to move through the pressing head 2-1.

[0033] Wall panels 14 are provided on both sides of the optical drum 3, and the optical drum 3 is rotatably mounted on the wall panels 14. A pressing drive assembly is installed between the wall panels 14, and the pressing drive assembly is connected to the pressing arm 2 to drive the pressing arm 2 to swing so that it abuts against the pressing groove 4-1. The pressing drive assembly includes a swing shaft 5, a mounting block 6 and a driving member 7. The swing shaft 5 is rotatably mounted between adjacent wall panels 14, and a plurality of mounting blocks 6 are evenly arranged on the swing shaft 5. The pressing arm 2 is fixedly connected to the mounting block 6, and the driving member 7 is connected to the swing shaft 5 to drive the swing shaft 5 to rotate. In this embodiment, the driving member 7 is connected to the swing shaft 5 through one of the mounting blocks 6, and the mounting block 6 is driven to rotate by the driving member 7, which drives the swing shaft 5 to rotate, drives the plurality of mounting blocks 6 on the swing shaft 5 to rotate simultaneously, drives the pressing arm 2 to swing, and opens the movable splint 1.

[0034] End brackets 8 are provided at both ends of the swing shaft 5, and the swing shaft 5 is connected to the end brackets 8 through bearings. In order to prevent the end brackets 8 from interfering with the plate pressing assembly, the end brackets 8 are installed on the wall panel 14 through connecting blocks 15. A middle bracket 9 is provided in the middle of the swing shaft 5, and the swing shaft 5 is connected to the middle bracket 9 through bearings. In order to facilitate the connection between the middle bracket 9 and the wall panel 14, a fixed column 16 is provided between adjacent wall panels 14, and the middle bracket 9 is fixedly installed on the fixed column 16. The swing shaft 5 is supported by the middle bracket 9 to ensure that the longer movable splint 1 can be opened and closed at the same time.

[0035] The driving member 7 includes a driving motor 7-1, a cam 7-2 and a cam connecting rod 7-3. The driving motor 7-1 is connected to the cam 7-2 through a worm gear 7-4, wherein the turbine is mounted on the driving motor 7-1, and the turbine is mounted on an adjacent connecting block 15 through a turbine shaft 7-5. The cam 7-2 is also mounted on the turbine shaft 7-4. The cam 7-2 is connected to the mounting block 6 through a cam connecting rod 7-3. The driving motor 7-1 drives the worm gear 7-4 to rotate, thereby driving the turbine shaft 7-4 to rotate, and driving the cam connecting rod 7-3 to move, so that the mounting block 6 rotates about the axis of the swing shaft 5, thereby driving the pressing arm 2 on the mounting block 6 to swing.

[0036] In order to facilitate clamping the tail end of the plate in the movable clamping plate 1, the plate tail fixing device also includes a plate pressing assembly, which is adapted to the movable clamping plate 1, that is, the plate pressing assembly is arranged between the movable clamping plate 1 and the fixed clamping plate 13, and the plate pressing assembly is arranged on the side close to the movable clamping plate 1, so as to press the tail end of the plate to the bottom of the movable clamping plate 1, so that the movable clamping plate 1 can clamp the tail end of the plate on the photo drum 3.

[0037] The plate pressing assembly includes a roller 10, a roller swing arm 11 and a swing arm shaft 12. The swing arm shaft 12 is installed between adjacent wall panels 14. The roller swing arm 11 is swingably installed on the swing arm shaft 12. The roller 10 is rotatably installed between adjacent roller swing arms 11. The plate is pressed by the roller 10, so that the tail end of the plate is pressed under the movable clamping plate 1.

[0038] In this embodiment, in order to reduce the space occupied by the pressing swing block 4-3 structure, the pressing arm 2 and the cam connecting rod 7-3 both adopt an arch structure to prevent the pressing arm 2 and the cam connecting rod 7-3 from interfering with the plate pressing assembly.

[0039] In this embodiment, a negative pressure groove 3-4 is provided on the circumferential side wall of the photodrum 3, and a negative pressure channel is provided inside the photodrum 3. The negative pressure groove 3-4 is connected to an external negative pressure device through the negative pressure channel, so that the negative pressure groove 3-4 is evacuated, thereby facilitating the adsorption of the plate on the circumferential side wall of the photodrum 3 and improving the stability of plate making.

[0040] The above description of the disclosed embodiments enables those skilled in the art to implement or use the present invention. Various modifications to these embodiments will be apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention; therefore, the present invention will not be limited to the embodiments shown herein, but will conform to the widest scope consistent with the principles and novel features disclosed herein.

[0041] Although this article uses more terms corresponding to the figure marks in the figures, it does not exclude the possibility of using other terms; these terms are used only to more conveniently describe and explain the essence of the utility model; interpreting them as any additional restrictions is contrary to the spirit of the utility model.

Claims

1. An adjustable plate tail fixing device, the plate tail fixing device is adapted to a photo drum (3) to fix the plate material on the photo drum (3), characterized in that: The plate tail fixing device comprises a movable clamping plate (1) and a pressing arm (2); the movable clamping plate (1) is slidably mounted on the optical drum (3); the pressing arm (2) is adapted to the movable clamping plate (1); the movable clamping plate (1) is driven to open and close by the pressing arm (2); when the driving member (7) presses the movable clamping plate (1), the optical drum (3) is driven to rotate to adjust the positional relationship between the optical drum (3) and the movable clamping plate (1).

2. The adjustable plate tail fixing device according to claim 1, characterized in that: The movable clamping plate (1) is slidably mounted on the optical drum (3) via a sliding block assembly (4); a pressing groove (4-1) adapted to the pressing arm (2) is provided on the sliding block assembly (4); and the pressing arm (2) applies a translational force to the sliding block assembly (4) via the pressing groove (4-1).

3. The adjustable plate tail fixing device according to claim 2, characterized in that: The sliding block assembly (4) comprises a sliding block (4-2) and a swing block (4-3) swingably mounted on the sliding block (4-2); a movable clamping plate (1) is fixed on the swing block (4-3); a pressing groove (4-1) is arranged on the swing block (4-3); and the sliding block (4-2) is slidably mounted on the optical drum (3).

4. The adjustable plate tail fixing device according to claim 1, characterized in that: The optical drum (3) is provided with an adjustment groove (3-1), and the movable clamping plate (1) is slidably connected to the adjustment groove (3-1) so as to adjust the positional relationship between the movable clamping plate (1) and the optical drum (3).

5. The adjustable plate tail fixing device according to claim 1, characterized in that: The pressing arm (2) is provided with a pressing head (2-1), and the pressing head (2-1) is plugged into the movable clamping plate (1) so as to drive the movable clamping plate (1) to move via the pressing head (2-1).

6. The adjustable plate tail fixing device according to claim 5, characterized in that: The pressing arm (2) is connected to a pressing drive assembly, which comprises a swing shaft (5), a mounting block (6) and a driving member (7). The swing shaft (5) is rotatably mounted in a plate tail fixing device. A plurality of mounting blocks (6) are evenly arranged on the swing shaft (5). The pressing arm is fixedly connected to the mounting block (6). The driving member (7) is connected to the swing shaft (5) to drive the swing shaft (5) to rotate.

7. The adjustable plate tail fixing device according to claim 6, characterized in that: Both ends of the swing shaft (5) are fixed in the plate tail fixing device via end brackets (8), and a middle bracket (9) is provided in the middle of the swing shaft (5) to support the swing shaft (5) via the middle bracket (9).

8. The adjustable plate tail fixing device according to claim 6, characterized in that: The driving member (7) comprises a driving motor (7-1), a cam (7-2) and a cam connecting rod (7-3); the driving motor (7-1) is connected to the cam (7-2); the cam (7-2) is connected to the mounting block (6) via the cam connecting rod (7-3), and drives the mounting block (6) to rotate.

9. The adjustable plate tail fixing device according to claim 1, characterized in that: The plate tail fixing device also includes a plate pressing component, which is adapted to the movable clamping plate (1) so as to press the plate material into the movable clamping plate (1).

10. The adjustable plate tail fixing device according to claim 9, characterized in that: The plate pressing assembly comprises a roller (10), a pressure roller swing arm (11) and a swing arm rotating shaft (12); the roller (10) is rotatably mounted between adjacent pressure roller swing arms (11); and the pressure roller swing arm (11) is rotatably mounted on the plate tail fixing device via the swing arm rotating shaft (12).

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