Clamping device for a slitter

Abstract

The utility model provides a clamping device of slitting machine, including mounting bracket, the inside of mounting bracket is provided with the sliding slot frame, the inside of sliding slot frame is provided with a plurality of sliding plates, each sliding plate inside all is provided with the rotary box through the rotary column rotation, the inside of each rotary box is provided with the inner support column in the sliding slot, the upper end of sliding slot frame is provided with the telescopic column, the telescopic end of a plurality of telescopic columns all is provided with an arc bracing, the inside of rotary box is provided with the adjusting mechanism of adjusting inner support column's mutual movement, the upper end of sliding slot frame is provided with the drive unit of drive arc bracing plate's lift. Through the clamping device of slitting machine in the utility model, can place the wrapping film mother roll on the liftable arc bracing, make it cooperate both sides movable clamping mechanism, need not personnel to consume big force to can complete to big volume big weight's wrapping film mother roll clamping operation, whole process can be rapidly completed, improves the slitting efficiency to the wrapping film.

Description

Technical Field

[0001] This utility model belongs to the field of packaging film master roll clamping and slitting technology, and particularly relates to the clamping device of a slitting machine. Background Technology

[0002] The clamping device of the slitting machine is a core component used to fix the packaging film master roll (such as BOPP, PET, CPP, aluminum foil and other roll materials). Its function is to firmly install the master roll on the main shaft and prevent slippage, jumping or axial displacement during the high-speed slitting process, so as to ensure slitting accuracy and operation safety.

[0003] Existing slitting machines use clamping devices that involve placing the packaging film roll onto a clamping shaft and then moving clamping blocks on the drive shaft to clamp it tightly against the inner wall of the packaging film roll. This ensures that the packaging film roll does not slip, shift, or loosen during high-speed operation, thus guaranteeing slitting accuracy and production safety. However, because the packaging film roll is large and heavy, it requires considerable effort from operators to move it and fully engage the clamping shaft in order to properly clamp it. This can easily cause muscle strain or work-related injuries to operators. The shaft engagement process is slow and requires multiple people to coordinate and advance, which seriously affects the roll change speed and reduces the slitting efficiency of the packaging film. Utility Model Content

[0004] In view of this, this utility model addresses the shortcomings of the prior art by providing a clamping device for a slitting machine. The packaging film roll can be placed on a liftable arc-shaped support plate, which, together with the movable clamping mechanisms on both sides, allows for the clamping of large-volume and heavy packaging film rolls without requiring much effort from personnel. The entire process can be completed quickly, improving the slitting efficiency of the packaging film.

[0005] To solve the above-mentioned technical problems, the technical solution adopted by this utility model is as follows: a clamping device for a slitting machine, including a mounting frame, a sliding frame inside the mounting frame, multiple sliding plates slidably arranged inside the sliding frame, a rotating box rotatably arranged inside each sliding plate via a rotating column, two rotating boxes corresponding to each other left and right, an inner support column slidably arranged in a sliding groove inside each rotating box, a telescopic column arranged at the upper end of the sliding frame, an arc-shaped support plate arranged at the telescopic end of the multiple telescopic columns, an adjustment mechanism for adjusting the opposing movement of the inner support columns inside the rotating box, and a drive unit for driving the arc-shaped support plate to rise and fall at the upper end of the sliding frame, the drive unit including a hydraulic push rod arranged on the sliding frame, the telescopic end of the hydraulic push rod being connected to the upper end of the arc-shaped support plate.

[0006] The adjustment mechanism includes multiple limiting posts inside multiple rotating boxes. A rotating plate is slidably arranged between each of the multiple adjacent limiting posts. A rotating connecting plate is rotatably arranged inside each rotating plate. A rotating support is arranged on the outer end of each inner support post. The multiple rotating connecting plates are rotatably connected to the interior of the adjacent rotating supports. A lead screw is rotatably arranged inside each rotating box. Each rotating plate is threadedly connected to the adjacent lead screw. A bevel gear is arranged on the outer end of each lead screw. A bevel gear column that meshes with the bevel gear is rotatably arranged inside each rotating box. Handwheels are arranged at both the upper and lower ends of the bevel gear column. The bevel gear column and the handwheels are fixed together by welding.

[0007] As a further improvement of this utility model, the mounting bracket has multiple mounting holes inside, which are located at the four corners of the mounting bracket.

[0008] As a further improvement of this utility model, the mounting frame is provided with a guide post located at the lower end of the slide rail frame. Both sliding plates are slidably connected to the guide post. The slide rail frame is rotatably provided with a bidirectional lead screw. The two sliding plates are respectively threaded to the left and right corresponding ends of the bidirectional lead screw. The left end of the mounting frame is provided with an electric drive unit for driving the bidirectional lead screw to rotate. The electric drive unit includes a motor located on the left side of the mounting frame. The output shaft of the motor is connected to the left end of the bidirectional lead screw through a coupling.

[0009] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0010] Firstly, by controlling the operation of the hydraulic control cabinet, the center of the packaging film roll is aligned with the center of the rotating box. By rotating the handwheels on both sides in sequence, the inner support columns on the rotating support are moved away from each other under the constraint of the sliding groove, and come into contact with the inner wall of the packaging film roll, thereby achieving clamping of the inner support. The packaging film roll can be placed on the liftable arc-shaped support plate, so that it can cooperate with the movable clamping mechanism on both sides. The clamping operation of large-volume and heavy packaging film rolls can be completed without the need for personnel to expend a lot of effort. The whole process can be completed quickly, improving the cutting efficiency of packaging film.

[0011] Secondly, by controlling the operation of the motor, the rotating boxes on both sides of the sliding plates are restricted by the sliding of the guide columns, causing the inner support columns on both sides to move towards each other into the inside of the packaging film roll, which can be used to clamp packaging film rolls of different lengths.

[0012] Thirdly, the handwheels on both sides of the bevel gear column allow personnel to contact the handwheels in a timely manner at any angle of rotation of the rotating box, clamping the packaging film roll, which facilitates personnel operation. Attached Figure Description

[0013] The present invention will now be described in further detail with reference to the accompanying drawings and specific embodiments.

[0014] Figure 1 This is a schematic diagram of the structure of this utility model;

[0015] Figure 2 This is a front sectional view of the present invention.

[0016] Figure 3 This is an enlarged structural diagram of point A in this utility model;

[0017] Figure 4 This is a schematic diagram of the structure of this utility model.

[0018] In the diagram: 101, mounting bracket; 102, slide rail bracket; 103, motor; 104, sliding plate; 105, double-acting lead screw; 106, guide column; 107, mounting hole; 201, rotating box; 202, inner support column; 203, handwheel; 204, rotating support; 205, limit column; 206, rotating plate; 207, bevel gear; 208, bevel gear column; 209, lead screw; 210, rotating connecting plate; 301, telescopic column; 302, arc-shaped support plate; 303, hydraulic push rod. Detailed Implementation

[0019] To better understand this utility model, the following embodiments further illustrate its content, but the scope of protection of this utility model is not limited to the embodiments described below. Numerous specific details are set forth in the following description to provide a more thorough understanding of this utility model. However, it will be apparent to those skilled in the art that this utility model can be practiced without one or more of these details.

[0020] like Figure 1 , 2 As shown, the clamping device of the slitting machine includes a mounting frame 101. A slide frame 102 is provided inside the mounting frame 101. Multiple sliding plates 104 are slidably arranged inside the slide frame 102. A rotating box 201 is rotatably arranged inside each sliding plate 104 via a rotating column. An inner support column 202 is slidably arranged in a slide groove inside each rotating box 201. A telescopic column 301 is provided at the upper end of the slide frame 102. An arc-shaped support plate 302 is provided at the telescopic end of each of the multiple telescopic columns 301. An adjustment mechanism for adjusting the opposing movement of the inner support columns 202 is provided inside the rotating box 201. A drive unit for driving the arc-shaped support plate 302 to rise and fall is provided at the upper end of the slide frame 102.

[0021] like Figure 2 , 3As shown in Figure 4, the adjustment mechanism includes multiple limiting posts 205 disposed inside multiple rotating boxes 201. A rotating plate 206 is slidably disposed between adjacent multiple limiting posts 205. A rotating connecting plate 210 is rotatably disposed inside each rotating plate 206. A rotating support 204 is disposed on the outer end of each inner support post 202. Multiple rotating connecting plates 210 are rotatably connected to the inner interior of adjacent rotating supports 204. A lead screw 209 is rotatably disposed inside each rotating box 201. Each rotating plate 206 is threadedly connected to an adjacent lead screw 209. A bevel gear 207 is disposed on the outer end of each lead screw 209. A bevel gear post 208 that meshes with the bevel gear 207 is rotatably disposed inside each rotating box 201. A handwheel 203 is disposed at both the upper and lower ends of the bevel gear post 208. The drive unit includes a hydraulic push rod 303 disposed on the slide frame 102. The telescopic end of the hydraulic push rod 303 is connected to the upper end of the arc-shaped support plate 302.

[0022] like Figure 1 , 2 As shown, the mounting frame 101 has a guide post 106 located at the lower end of the slide rail frame 102 inside. Both sliding plates 104 are slidably connected to the guide post 106. The slide rail frame 102 has a bidirectional lead screw 105 rotatably installed inside. The two sliding plates 104 are threadedly connected to the left and right corresponding ends of the bidirectional lead screw 105, respectively. The left end of the mounting frame 101 is provided with an electric drive unit for driving the bidirectional lead screw 105 to rotate. The electric drive unit includes a motor 103 located on the left side of the mounting frame 101. The output shaft of the motor 103 is connected to the left end of the bidirectional lead screw 105 through a coupling.

[0023] First, the clamping device is installed on the frame of the slitting machine. Then, the packaging film master roll is hoisted to the upper end of the arc-shaped support plate 302. Subsequently, the inlet and outlet oil pipes of the hydraulic push rod 303 are connected to the inlet and outlet oil pipes of the hydraulic control cabinet. Then, the hydraulic control cabinet is turned on to run, causing the hydraulic push rod 303 to run. The telescopic end drives the arc-shaped support plate 302 to move upward under the sliding restriction of the telescopic column 301, so that the center of the packaging film master roll corresponds to the center of the rotating box 201. Then, the motor 103 is turned on to run, so that the rotating box 201 on both sides of the sliding plate 104 moves towards each other into the inside of the packaging film master roll under the sliding restriction of the guide column 106.

[0024] Subsequently, by rotating the handwheels 203 on both sides in sequence, the bevel gear column 208 rotates, which in turn drives the bevel gear 207 that meshes with it to rotate, which in turn drives the lead screw 209 to rotate. This causes the rotating plate 206 to move closer to each other under the sliding restriction of multiple limiting columns 205, and causes multiple rotating connecting plates 210 inside it to rotate and expand. This causes the inner support columns 202 on the rotating support 204 to move away from each other under the restriction of the sliding groove, and to contact the inner wall of the packaging film mother roll, thereby achieving clamping of its inner support.

[0025] The handwheels 203 on both sides of the bevel gear column 208 allow personnel to contact the handwheels 203 in a timely manner at any angle of rotation of the rotating box 201 to clamp the packaging film roll.

[0026] According to another embodiment of the present invention, such as Figure 1 As shown, the mounting bracket 101 has multiple mounting holes 107 inside. By using the mounting holes 107 and mounting bolts, it can be quickly installed on the frame of the slitting machine.

[0027] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of this utility model and are not intended to limit it. Any other modifications or equivalent substitutions made by those skilled in the art to the technical solution of this utility model, as long as they do not depart from the spirit and scope of the technical solution of this utility model, should be covered within the scope of the claims of this utility model.

Claims

1. Clamping device of a slitter, comprising a mounting frame (101), characterized in that: The mounting frame (101) is provided with a sliding frame (102) inside. Multiple sliding plates (104) are slidably arranged inside the sliding frame (102). Each sliding plate (104) has a rotating box (201) rotatably arranged inside through a rotating column. An inner support column (202) is slidably arranged in the sliding groove opened inside each rotating box (201). A telescopic column (301) is provided at the upper end of the sliding frame (102). An arc-shaped support plate (302) is provided at the telescopic end of each of the multiple telescopic columns (301). An adjustment mechanism for adjusting the movement of the inner support columns (202) in opposite directions is provided inside the rotating box (201). A drive unit for driving the arc-shaped support plate (302) to rise and fall is provided at the upper end of the sliding frame (102).

2. The gripping device of a slitter according to claim 1, characterized in that: The adjustment mechanism includes multiple limiting posts (205) disposed inside multiple rotating boxes (201), a rotating plate (206) slidably disposed between adjacent multiple limiting posts (205), a rotating connecting plate (210) rotatably disposed inside each rotating plate (206), a rotating support (204) disposed on the outer end of each inner support post (202), multiple rotating connecting plates (210) rotatably connected to the inner interior of adjacent rotating supports (204), a lead screw (209) rotatably disposed inside each rotating box (201), each rotating plate (206) threadedly connected to adjacent lead screws (209), a bevel gear (207) disposed on the outer end of each lead screw (209), and a bevel gear column (208) rotatably disposed inside each rotating box (201) meshing with the bevel gear (207).

3. The gripping device of a slitter according to claim 2, characterized in that: Handwheels (203) are provided at both the upper and lower ends of the bevel gear column (208).

4. The gripping device of a slitter according to claim 1, characterized in that: The drive unit includes a hydraulic push rod (303) mounted on the slide frame (102), and the telescopic end of the hydraulic push rod (303) is connected to the upper end of the arc-shaped support plate (302).

5. The gripping device of a slitter according to claim 1, characterized in that: The mounting bracket (101) is provided with a guide post (106) located at the lower end of the slide frame (102). Two sliding plates (104) are slidably connected to the guide post (106). A bidirectional lead screw (105) is rotatably provided inside the slide frame (102). The two sliding plates (104) are threadedly connected to the left and right corresponding ends of the bidirectional lead screw (105) respectively. An electric drive unit for driving the bidirectional lead screw (105) to rotate is provided at the left end of the mounting bracket (101).

6. The gripping device of a slitter according to claim 5, characterized in that: The electric drive unit includes a motor (103) located on the left side of the mounting bracket (101), and the output shaft of the motor (103) is connected to the left end of a two-way lead screw (105) via a coupling.

7. The gripping device of a slitter according to claim 1, characterized in that: The mounting bracket (101) has multiple mounting holes (107) inside.

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