Quick change connection device for printing machine roll up and down roller

Abstract

This utility model relates to the field of printing machinery technology and discloses a quick roll-changing connection device for the take-up and untake-up rolls of a printing press. It includes a limiting component and an adjusting component: the limiting component drives a limiting block to rotate via a lead screw, achieving rapid separation and engagement of the power connection; the adjusting component drives a sleeve with a wedge block to move axially via a lead screw, causing the roll plate to expand radially to clamp the paper roll. This utility model solves the problems of cumbersome and time-consuming roll-changing operations in existing technologies, and has the advantages of rapid roll changing, reliable fixation, and convenient operation, effectively improving production efficiency.

Description

Technical Field

[0001] This utility model relates to the field of printing machinery technology, and in particular to a quick roll changing connection device for printing press take-up and untake-up rolls. Background Technology

[0002] In the field of printing machinery, the take-up and unwinding device is a key component used to carry and drive paper rolls. When a roll of paper is used up, the machine needs to be stopped and a new roll quickly replaced to ensure production continuity. Existing take-up and unwinding rollers typically involve two main operating steps when changing rolls: first, disconnecting the power connection between the roller and the drive motor; and second, loosening the fixing device on the old paper roll core.

[0003] In traditional designs, the disconnection and connection of power connections often involve using flanges secured with multiple bolts. Disassembly and installation require specialized tools and are cumbersome and time-consuming. Simultaneously, the adjustment process for the clamping device to secure the paper roll is complex, making it difficult to achieve rapid and uniform locking. This can easily lead to eccentricity or unstable clamping after installing a new paper roll, causing it to wobble during high-speed unwinding and rewinding, thus affecting print quality. This inefficient separation of power and securing of the paper roll constitutes the main time bottleneck during roll changing, directly reducing the overall production efficiency of the printing press. Utility Model Content

[0004] To overcome the above shortcomings, this utility model provides a quick roll change connection device for printing press take-up and untake-up rolls. It aims to improve the problems of cumbersome and time-consuming power connection separation and engagement operations, as well as low efficiency and insufficient stability in paper roll fixing and positioning of the quick roll change connection device for printing press take-up and untake-up rolls. This utility model aims to provide a quick roll change connection device for printing press take-up and untake-up rolls with an improved structure that can effectively solve the above problems.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a quick roll changing connection device for printing press take-up and untake-up rollers, comprising: a roll plate, a first connecting block, a second connecting block, an adjustment component, and a limiting component.

[0006] The limiting component includes a movable limiting block for selectively limiting or releasing the first connecting block; the adjusting component includes a sleeve with a third fixing block of a wedge shape.

[0007] Furthermore, the limiting component controls the separable connection and disconnection between the first connecting block and the second connecting block by moving the limiting block; the adjusting component is combined by driving the sleeve to slide axially and using the third fixing block to drive the rollers to move radially.

[0008] Preferably, the limiting component includes a second lead screw, a second sliding block, a rotating block, and a connecting rod; the second lead screw drives the second sliding block to slide through a threaded transmission, and the second sliding block is linked to the rotating block so that the limiting block rotates about the connecting rod as a rotation axis.

[0009] Preferably, the limiting component further includes a third connecting block, wherein the second sliding block is disposed within the third connecting block and slides along the inner wall of the third connecting block.

[0010] Preferably, the adjusting assembly includes a first lead screw and a first fixing block, wherein the first lead screw is threadedly engaged with the internal thread of the first fixing block, and the sleeve is driven to slide axially by rotation.

[0011] Preferably, the adjustment assembly further includes a second fixing block, which has a groove for the third fixing block to slide therein.

[0012] Preferably, the adjustment assembly further includes a fixing plate, the fixing plate is provided with a slide rail, and the roller is provided with a first sliding block, the first sliding block being slidably engaged within the slide rail.

[0013] Preferably, the quick roll change connection device for the printing press take-up and untake-up rolls further includes a bearing, and the sleeve slides along the outer periphery of the bearing and the guide trajectory of the fixed plate.

[0014] Preferably, the second connecting block is used to connect to the motor output terminal.

[0015] This utility model has the following beneficial effects: 1. In this utility model, by setting a limiting component driven by a second lead screw, the rotation of the limiting block is used to control the separation and engagement of the first connecting block and the second connecting block, which solves the problems of cumbersome, time-consuming and tool-dependent power connection disassembly and assembly in the prior art, and achieves the technical effects of quickly cutting off or connecting power transmission, convenient operation and significantly shortening the roll change preparation time.

[0016] 2. In this utility model, by setting an adjustment component driven by the first lead screw, the axial movement of the wedge block on the sleeve is used to push multiple roll plates to open radially synchronously. This solves the problems of complex paper roll fixing operation, uneven clamping force, and easy loosening and displacement during the winding and unwinding process in the prior art. It achieves the technical effect of fast, stable and uniform clamping of new paper rolls, effectively avoiding axial displacement or radial shaking of paper rolls caused by loosening, and ensuring the stability of printing winding and unwinding. Attached Figure Description

[0017] Figure 1This is a three-dimensional structural diagram of a quick roll changing connection device for the take-up and unwinding rolls of a printing press, as proposed in this utility model. Figure 2 This is a schematic diagram of the first connecting block of a quick roll changing connection device for printing press take-up and untake-up rollers proposed in this utility model. Figure 3 This is a schematic diagram of the connecting rod part of a quick roll changing connection device for printing press take-up and untake-up rollers proposed in this utility model. Figure 4 This is a schematic diagram of the slide rail section of a quick roll changing connection device for the take-up and unwinding rolls of a printing press, as proposed in this utility model. Figure 5 This is a schematic diagram of the sleeve portion of a quick roll changing connection device for the take-up and unwinding rolls of a printing press, as proposed in this utility model.

[0018] Legend: 1. Adjustment assembly; 101. First lead screw; 102. First fixing block; 103. Fixing plate; 104. Slide rail; 105. First sliding block; 106. Second fixing block; 107. Third fixing block; 108. Sleeve; 2. Roller blade; 3. Bearing; 4. First connecting block; 5. Second connecting block; 6. Limiting assembly; 601. Second lead screw; 602. Third connecting block; 603. Second sliding block; 604. Rotating block; 605. Limiting block; 606. Connecting rod. Detailed Implementation

[0019] The following is in conjunction with the appendix Figure 1 - Appendix Figure 5 This application will be described in further detail below.

[0020] Please refer to Figures 1 to 5 This utility model provides a quick roll changing connection device for printing press take-up and unwinding rolls, which aims to solve the problems of cumbersome separation and engagement of the power connection and long time consumption of fixing and positioning the paper roll when changing paper rolls in existing printing press take-up and unwinding devices.

[0021] like Figure 1As shown, the quick roll change connection device for the take-up and untake-up rolls of the printing press includes an adjustment component 1, a roll plate 2, a bearing 3, a first connecting block 4, a second connecting block 5, and a limiting component 6. The first connecting block 4 and the second connecting block 5 can be connected separately to transmit or cut off power. The second connecting block 5 is used to connect to the motor output end. The limiting component 6 is used to control the connection and separation of the first connecting block 4 and the second connecting block 5. The roll plate 2 is used to clamp the paper roll. The adjustment component 1 is connected to the roll plate 2. The adjustment component 1 is used to drive the roll plate 2 to clamp or release the paper roll. The limiting component 6 limits or releases the first connecting block 4 by moving the limiting block 605 set inside it. The core driving structure of the adjustment component 1 is a sleeve 108. The adjustment component 1 drives the sleeve 108 to slide axially and uses the third fixing block 107 with a wedge structure set on the sleeve 108 to push the roll plate 2 to move radially, thereby clamping and releasing the inner wall of the paper roll.

[0022] Please refer to the following carefully. Figure 1 and Figure 3 The limiting assembly 6 includes a second lead screw 601, a third connecting block 602, a second sliding block 603, a rotating block 604, a limiting block 605, and a connecting rod 606. The second lead screw 601 drives the second sliding block 603 through threaded transmission. The second sliding block 603 is disposed inside the third connecting block 602 and slides along the inner wall of the third connecting block 602. The sliding of the second sliding block 603 is linked to the rotating block 604, and the rotating block 604 in turn drives the limiting block 605 to rotate about the connecting rod 606 as the rotation axis. Through the rotation in and rotation out actions of the limiting block 605, the first connecting rod is controlled. The reliable limiting and quick release of block 4 allows the operator to rotate the second lead screw 601 when it is necessary to separate the first connecting block 4 and the second connecting block 5 to replace the paper roll. The second sliding block 603 moves axially after being subjected to force, and drives the rotating block 604, causing the limiting block 605 to rotate outward, eventually completely detaching from the constraint on the first connecting block 4. At this time, the first connecting block 4 and the second connecting block 5 can be easily separated. This structure converts the rotation operation into a precise swing of the limiting block 605. The action is smooth and reliable, greatly simplifying the complicated disassembly steps of the traditional device and significantly improving the efficiency of paper roll changing.

[0023] As a preferred embodiment, please refer to Figure 1 and Figure 5In order to achieve precise driving of the clamping action of the roll plate 2, the internal structure of the adjustment component 1 has been specially designed. The adjustment component 1 includes a first lead screw 101 and a first fixing block 102. The internal threads of the first lead screw 101 and the first fixing block 102 are connected by a threaded engagement. When the operator rotates the first lead screw 101, an axial thrust can be generated through stable thread transmission to drive the sleeve 108 to perform precise axial sliding. This transmission method is not only labor-saving, but also has good self-locking properties, which can ensure that the roll plate 2 is stable and does not loosen after clamping the paper roll.

[0024] As another preferred embodiment, please refer to Figure 1 and Figure 4 In order to ensure that the wedge force of the third fixing block 107 can be smoothly transmitted to the winding wheel 2, the adjusting assembly 1 also includes a second fixing block 106. The second fixing block 106 is provided with a groove in which the third fixing block 107 slides. The groove provides precise guidance for the axial movement of the third fixing block 107, ensuring its stable posture during movement, thereby ensuring that the pushing force of its wedge surface on the winding wheel 2 is uniform and consistent, avoiding jamming or clamping deviation that may be caused by uneven force.

[0025] As another preferred embodiment, please refer to Figure 1 and Figure 4 To ensure that multiple rolls 2 can unfold or retract synchronously and smoothly during radial movement, the adjustment assembly 1 also includes a fixing plate 103. The fixing plate 103 is provided with a slide rail 104, and each roll 2 is provided with a first sliding block 105. The first sliding block 105 is slidably engaged in the slide rail 104. This guide rail and slider structure provides independent and precise guidance for the radial movement of each roll 2, ensuring that all rolls 2 move in a consistent, smooth and stable manner during unfolding, thereby achieving uniform adhesion to the inner wall of the paper roll. This is crucial for ensuring the dynamic balance of the paper roll under high-speed rotation.

[0026] As another preferred embodiment, please refer to Figure 1 and Figure 5 In order to support the sleeve 108 and make its sliding process smoother, the device is also equipped with a bearing 3. The sleeve 108 slides along the outer circumference of the bearing 3. At the same time, the sleeve 108 also slides along the guide trajectory of the fixed plate 103. The presence of the bearing 3 reduces the frictional resistance when the sleeve 108 slides, making the drive of the first lead screw 101 easier and more efficient. The guide trajectory of the fixed plate 103 further ensures the linearity and stability of the sleeve 108 sliding.

[0027] Working principle: When the paper roll needs to be replaced, the first step is to perform an unlocking and separation operation. The operator rotates the second lead screw 601 inside the limiting component 6. Under the action of the threaded transmission, the second sliding block 603 slides axially along the inner wall of the third connecting block 602. The sliding second sliding block 603 pushes the rotating block 604 to move, causing the limiting block 605 to rotate outward with the connecting rod 606 as the center of rotation, gradually releasing the limiting constraint on the first connecting block 4. When the limiting block 605 is completely separated from the first connecting block 4, the first connecting block 4 can be pushed to separate it from the second connecting block 5 connected to the motor, thereby quickly cutting off the power transmission and facilitating the removal of the old paper roll. After replacing the paper roll with a new one, a clamping and fixing operation is performed. The operator rotates the first lead screw 101 in the adjusting assembly 1. The first lead screw 101 rotates in the internal threaded hole of the first fixing block 102. Its thread driving force acts on the sleeve 108, causing the sleeve 108 to slide smoothly axially along the outer wall of the bearing 3 and along the guide track of the fixing plate 103. During the sliding process, the third fixing block 107 on the sleeve 108 moves synchronously in the groove of the second fixing block 106. The third fixing block 107 uses its wedge structure to convert the axial sliding into radial thrust, which evenly pushes multiple roll plates 2 to unfold outward. At this time, the first sliding block 105 on each roll plate 2 will slide along the track of the slide rail 104 on the fixing plate 103, ensuring that the unfolding process of all roll plates 2 is smooth and synchronous. Finally, the outer surface of the roll plate 2 is tightly attached to the inner wall of the new paper roll, thereby completing the firm and reliable fixing of the new paper roll.

Claims

1. A quick roll changing connection device for a printing press take-up and untake-up roll, comprising a roll plate (2), a first connecting block (4) and a second connecting block (5) that can be detachably connected to each other, an adjusting component (1), and a limiting component (6), characterized in that, The limiting component (6) includes a limiting block (605), which is movably configured to selectively limit or release the first connecting block (4), thereby controlling the connection and separation of the first connecting block (4) and the second connecting block (5); The adjustment component (1) includes a sleeve (108) and a third fixing block (107) with a wedge structure. When the adjustment component (1) drives the sleeve (108) to slide axially, the third fixing block (107) drives the roll plate (2) to move radially to clamp or loosen the paper roll.

2. The quick roll changing connection device for printing press take-up and untake-up rolls according to claim 1, characterized in that: The limiting component (6) includes a second lead screw (601), a second sliding block (603) that slides axially, a rotating block (604), and a connecting rod (606); the second lead screw (601) drives the second sliding block (603) to slide through a threaded transmission, and the second sliding block (603) is linked to the rotating block (604) so ​​that the limiting block (605) rotates about the connecting rod (606) as the rotation axis.

3. The quick roll changing connection device for printing press take-up and untake-up rolls according to claim 2, characterized in that: The limiting component (6) includes a third connecting block (602), and the second sliding block (603) is disposed inside the third connecting block (602) and slides along the inner wall of the third connecting block (602).

4. The quick roll changing connection device for printing press take-up and untake-up rolls according to claim 1, characterized in that: The adjustment assembly (1) includes a first lead screw (101) and a first fixing block (102). The first lead screw (101) is threadedly engaged with the internal thread of the first fixing block (102), and the sleeve (108) is driven to slide axially by rotation.

5. The quick roll changing connection device for printing press take-up and untake-up rolls according to claim 1, characterized in that: The adjustment component (1) includes a second fixing block (106), which has a groove for the third fixing block (107) to slide therein.

6. The quick roll changing connection device for printing press take-up and untake-up rolls according to claim 1, characterized in that: The adjustment component (1) includes a fixed plate (103), on which a slide rail (104) is provided, and on the roller (2) a first sliding block (105) is provided, the first sliding block (105) being slidably engaged within the slide rail (104).

7. The quick roll changing connection device for printing press take-up and untake-up rolls according to claim 6, characterized in that: The device includes a bearing (3), and the sleeve (108) slides along the outer periphery of the bearing (3) and the guide trajectory of the fixing plate (103).

8. The quick roll changing connection device for printing press take-up and untake-up rolls according to claim 1, characterized in that: The second connecting block (5) is used to connect the motor output end.

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