A quick conversion device for a multi-color group gravure on-line reel paper chuck

Abstract

The utility model discloses a multi -color group concave connection line reel paper clamp chuck quick conversion device, including support seat, the support seat is rotated and is connected with the pivot, the pivot is slidably connected with first rotary arm and second rotary arm, the pivot is fixedly connected with the fixed base of U shape, the fixed base is rotatably connected with the screw rod in, two screw blocks are connected through the thread of opposite rotation on the screw rod, two the screw block is fixed on first rotary arm and second rotary arm respectively, the both ends of first rotary arm are all installed telescopic pneumatic cylinder, and the piston rod of telescopic pneumatic cylinder is fixed with first chuck cone sleeve. The utility model effectively reduces the labor intensity of operating personnel, greatly saves the time waste caused by replacing different chucks, better shortens the start -up time of delaying because of replacing different chucks, reaches the normal operation of guaranteeing printing of high -efficiency operation, satisfies the requirement of reel paper different paper core.

Description

Technical Field

[0001] This utility model relates to the technical field of roll-to-roll printing equipment, and in particular to a quick-change device for a multi-color gravure inline roll-to-roll paper feed clamp. Background Technology

[0002] Existing roll-to-roll printing equipment, both domestically and internationally, mainly consists of a paper feeding unit, a web guiding unit, a printing unit, a registration unit, a cutting unit, and a paper delivery unit. With increasingly stringent market demands for printed products, including stringent requirements on print quality and delivery time, the paper feeding unit has encountered several problems. For example, the original design of the roll-to-roll paper clamps was primarily designed for 12-inch paper cores (due to paper jams). However, in actual production, some products also use 6-inch paper cores, and 12-inch paper cores are mainly for 120g / m² coated paper. Therefore, each time a different paper core is used, the currently used clamp cone sleeve is removed and replaced with a clamp of the size required for the next paper core, such as replacing a 6-inch clamp cone sleeve with a 12-inch clamp cone sleeve. During the replacement process, all the clamp cone sleeve locking screws at both ends need to be removed, and then the cone sleeve is slowly removed using a puller. Then, the required 6-inch clamp cone sleeve is replaced, and the cone sleeve screws are tightened again. Each replacement requires removing 40 screws. Each change takes 120 minutes. Therefore, each chuck change requires a long time and a significant amount of manual labor, thus extending production time. To better address these issues, we propose a rapid chuck change device for multi-color gravure printing web feeders. Summary of the Invention

[0003] The purpose of this invention is to address the shortcomings of existing technologies by proposing a rapid switching device for the paper feed clamp of multi-color gravure printing rolls.

[0004] To achieve the above objectives, the present invention adopts the following technical solution: A quick-change device for paper feed clamps on multi-color gravure printing rolls includes a support base, a rotating shaft rotatably connected to the support base, a first rotating arm and a second rotating arm slidably connected to the rotating shaft, a U-shaped fixing seat fixedly connected to the rotating shaft, a lead screw rotatably connected inside the fixing seat, two threaded blocks connected to the lead screw by threads of opposite directions, the two threaded blocks being respectively fixed to the first rotating arm and the second rotating arm, telescopic cylinders installed at both ends of the first rotating arm, a first chuck cone sleeve fixed to the piston rod of the telescopic cylinder, a second chuck cone sleeve fixed to the first chuck cone sleeve, a second servo motor installed at both ends of the second rotating arm, a proximity switch installed on the second servo motor, a third chuck cone sleeve fixed to the output shaft of the second servo motor, and a fourth chuck cone sleeve fixed to the third chuck cone sleeve.

[0005] Preferably, the support base is equipped with a first servo motor for driving the rotating shaft to rotate.

[0006] Preferably, the support base is equipped with an angle sensor for measuring the rotation angle of the shaft.

[0007] Preferably, the first rotating arm and the second rotating arm are arranged in parallel.

[0008] Preferably, the first and third chuck tapered sleeves are 12-inch chuck tapered sleeves, and the second and fourth chuck tapered sleeves are 6-inch chuck tapered sleeves.

[0009] Compared with the prior art, the beneficial effects of this utility model are: 1. In this utility model, by using this device, there is no need to replace different chucks, which wastes a lot of time. It effectively reduces the labor intensity of operators, saves a lot of time caused by replacing different chucks, and shortens the start-up time caused by replacing different chucks, thus achieving high-efficiency operation and ensuring normal printing operation. 2. In this utility model, the limit position of the second servo motor is controlled by a proximity switch. The second servo motor is automatically adjusted according to the size of the roll paper. When using a 6-inch roll paper core, the second and fourth chuck cone sleeves are used. When using a 12-inch roll paper core, the first and third chuck cone sleeves are used. After the two conical sleeves are aligned with the roll paper core, the roll paper core is tightened by a telescopic cylinder and rotates rapidly in a circular motion, thus meeting the requirements of different roll paper cores. Attached Figure Description

[0010] Figure 1 This is a schematic diagram of the structure of a quick-change device for a multi-color gravure printing web feeder proposed in this utility model.

[0011] In the figure: 1 First chuck tapered sleeve, 2 Second chuck tapered sleeve, 3 Second servo motor, 4 Proximity switch, 5 First rotating arm, 6 Lead screw, 7 Shaft sleeve, 8 Telescopic cylinder, 9 Fixed seat, 10 Support seat, 11 Angle sensor, 12 Rotating shaft, 13 First servo motor, 14 Third chuck tapered sleeve, 15 Fourth chuck tapered sleeve, 16 Second rotating arm, 17 Threaded block. Detailed Implementation

[0012] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0013] Reference Figure 1A quick-change device for paper feed clamps on multi-color gravure printing rolls includes a support base 10, a rotating shaft 12 rotatably sleeved on the support base 10, a first rotating arm 5 and a second rotating arm 16 slidably sleeved on the rotating shaft 12, a U-shaped fixing seat 9 fixedly sleeved on the rotating shaft 12, a lead screw 6 rotatably sleeved inside the fixing seat 9, and two threaded blocks 17 connected to the lead screw 6 by threads of opposite directions. The two threaded blocks 17 are respectively fixed on the first rotating arm 5 and the second rotating arm 16. Telescopic cylinders 8 are installed at both ends of the first rotating arm 5, and a first chuck cone sleeve 1 is fixed on the piston rod of the telescopic cylinder 8. A second chuck cone sleeve 1 is fixed on the first chuck cone sleeve 1. The first rotating arm 5 and the second rotating arm 16 are each equipped with a second servo motor 3. A proximity switch 4 is installed on the second servo motor 3. The output shaft of the second servo motor 3 is fixed with a third chuck cone sleeve 14. A fourth chuck cone sleeve 15 is fixed on the third chuck cone sleeve 14. A first servo motor 13 for driving the rotating shaft 12 to rotate is installed on the support base 10. An angle sensor 11 for measuring the rotation angle of the rotating shaft 12 is installed on the support base 10. The first rotating arm 5 and the second rotating arm 16 are arranged in parallel. The first chuck cone sleeve 1 and the third chuck cone sleeve 14 are 12-inch chuck cone sleeves. The second chuck cone sleeve 2 and the fourth chuck cone sleeve 15 are 6-inch chuck cone sleeves.

[0014] Working principle: The first chuck cone sleeve 1 and the third chuck cone sleeve 14 are 12-inch chuck cone sleeves, and the second chuck cone sleeve 2 and the fourth chuck cone sleeve 15 are 6-inch chuck cone sleeves. Integrating the first chuck cone sleeve 1 and the second chuck cone sleeve 2, as well as integrating the third chuck cone sleeve 14 and the fourth chuck cone sleeve 15, integrates the 6-inch and 12-inch chuck cone sleeves into a single unit. Rotating the lead screw 6 causes the two threaded blocks 17 to move synchronously towards or away from each other through oppositely oriented threads. This, in turn, causes the first rotating arm 5 and the second rotating arm 16 to move synchronously towards or away from each other. Thus, the size of the roll paper can be adjusted via the lead screw 6 to meet the application of different paper core sizes. When using a 6-inch paper core, the paper core moves internally until it is fixed to the first chuck cone sleeve 1. For a 12-inch paper core, the method... Similarly, by using this device, there is no need to waste a lot of time changing different chucks, which effectively reduces the labor intensity of operators, saves a lot of time caused by changing different chucks, and shortens the start-up time caused by changing different chucks, thus achieving high-efficiency operation and ensuring normal printing operation. The limit position of the second servo motor 3 is controlled by the proximity switch 4. The second servo motor 3 automatically adjusts according to the size of the roll paper. When using a 6-inch roll paper core, the second chuck cone sleeve 2 and the fourth chuck cone sleeve 15 are used. When using a 12-inch roll paper core, the first chuck cone sleeve 1 and the third chuck cone sleeve 14 are used. After the two conical sleeves are aligned with the roll paper core, the roll paper core is tightened by the telescopic cylinder 8 and rotates rapidly in a circle, which meets the requirements of different roll paper cores.

[0015] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A quick-change device for the paper feed clamp of a multi-color gravure printing web, comprising a support base (10), characterized in that, A rotating shaft (12) is rotatably sleeved on the support base (10). A first rotating arm (5) and a second rotating arm (16) are slidably sleeved on the rotating shaft (12). A U-shaped fixed seat (9) is fixedly sleeved on the rotating shaft (12). A lead screw (6) is rotatably sleeved inside the fixed seat (9). Two threaded blocks (17) are sleeved on the lead screw (6) by threads with opposite directions. The two threaded blocks (17) are respectively fixed on the first rotating arm (5) and the second rotating arm (16). Both ends of the second rotating arm (16) are equipped with telescopic cylinders (8). A first chuck cone sleeve (1) is fixed on the piston rod of the telescopic cylinder (8). A second chuck cone sleeve (2) is fixed on the first chuck cone sleeve (1). Both ends of the second rotating arm (16) are equipped with second servo motors (3). A proximity switch (4) is installed on the second servo motor (3). A third chuck cone sleeve (14) is fixed on the output shaft of the second servo motor (3). A fourth chuck cone sleeve (15) is fixed on the third chuck cone sleeve (14).

2. The quick-change device for the paper feed clamp of a multi-color gravure printing web as described in claim 1, characterized in that, The support base (10) is equipped with a first servo motor (13) for driving the rotating shaft (12) to rotate.

3. The quick-change device for the paper feed clamp of a multi-color gravure printing web as described in claim 2, characterized in that, An angle sensor (11) for measuring the rotation angle of the shaft (12) is installed on the support base (10).

4. The quick-change device for the paper feed clamp of a multi-color gravure printing web as described in claim 1, characterized in that, The first rotating arm (5) and the second rotating arm (16) are arranged in parallel.

5. A quick-change device for the paper feed clamp of a multi-color gravure printing web as described in claim 1, characterized in that, The first chuck tapered sleeve (1) and the third chuck tapered sleeve (14) are 12-inch chuck tapered sleeves, and the second chuck tapered sleeve (2) and the fourth chuck tapered sleeve (15) are 6-inch chuck tapered sleeves.

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