Production line film releasing device

Abstract

The utility model relates to the technical field of film releasing equipment, and discloses a production line film releasing device which comprises a PVC film releasing frame, a PVC film roll is arranged on the PVC film releasing frame, two connecting frames are symmetrically and fixedly installed on one side of the PVC film releasing frame, supporting frames are fixedly installed on the bottom sides of the two connecting frames, and the two supporting frames are fixedly installed on the PVC film releasing frame. When the PVC film roll cutting device is used and faces a wide PVC film roll, the two movable cutting knives can be adjusted through the driving motor to be close to each other, the continuously moving movable cutting knives can slowly make contact with the pulled-out PVC film roll, and the PVC film roll can be cut off by the movable cutting knives when making contact with the movable cutting knives. The moving distance of the movable cutter can be adjusted according to the width of the needed PVC film roll, the effect of cutting the two ends of the PVC film roll is achieved, the pulled-out PVC film roll is better attached to the plate in size, the situation that the packaging effect is affected due to the fact that the PVC film roll is too wide is avoided, and the PVC film roll is prevented from being repeatedly replaced.

Description

Technical Field

[0001] The utility model belongs to the technical field of film placing equipment, and in particular relates to a film placing device for a production line. Background Art

[0002] The PVC film unwinding rack is mainly used to support the PVC film roll. The PVC film roll is placed on the unwinding rack. Driven by the packaging machine, the PVC film can be pulled out to package plates, doors and windows, aluminum materials, stainless steel, etc.

[0003] When using PVC film for packaging, different widths of PVC film need to be used according to the size of the plate or aluminum being packaged. If the PVC film is too wide, over-packaging will occur, affecting the packaging effect. However, the PVC film roll needs to be frequently replaced according to different packaging products, which is rather cumbersome. Therefore, a production line film unwinding device is needed to meet people's needs. Utility Model Content

[0004] In response to some or all of the problems existing in the above-mentioned prior art, the utility model provides a film-laying device for a production line, which can cut PVC film to a suitable width according to plates or aluminum materials of different sizes, avoiding repeated replacement of PVC film rolls.

[0005] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0006] A film unwinding device for a production line includes a PVC film unwinding frame, wherein the PVC film unwinding frame is provided with a PVC film roll, two connecting frames are symmetrically fixedly installed on one side of the PVC film unwinding frame, support frames are fixedly installed on the bottom sides of the two connecting frames, and the two support frames are fixedly installed on the PVC film unwinding frame, two limit rods are fixedly installed on the side close to each other, two sliding frames are slidably installed on the two limit rods, the same mounting frame is fixedly installed on the two sliding frames on the same side, fixed shafts are fixedly installed on the two mounting frames, movable cutters are rotatably installed on the two fixed shafts, the same bidirectional screw rod is threadedly installed on the two mounting frames, the bidirectional screw rod is rotatably installed on the two connecting frames, one end of the bidirectional screw rod is fixedly installed with a motor, and the motor is fixedly installed on one side of the corresponding connecting frame. The two movable cutters are respectively located on both sides of the PVC film roll, and the two connecting frames are fixedly installed with the same fixed bar on the side close to each other. Two first cylinders are fixedly installed on one side of the fixed bar, and the output ends of the two first cylinders pass through the fixed bar and are fixedly installed with the same linkage bar. A linkage groove is provided on the linkage bar, and two linkage shafts are movably installed in the linkage groove. The two linkage shafts are respectively fixedly installed on the bottom sides of the two movable cutters, and a second cylinder is fixedly installed on one side of the two connecting frames. The output ends of the two second cylinders are fixedly installed with a U-shaped slider, and two connecting shafts are symmetrically fixedly installed on one side of the two U-shaped sliders. Movable blocks are rotatably installed on the four connecting shafts. The two movable blocks on the same side are fixedly installed with the same movable clamping strip on the side close to each other, and rubber pads are fixedly installed on the side of the two movable clamping strips close to each other.

[0007] Preferably, a sliding hole is provided on the sliding frame, and the limiting rod is slidably installed in the sliding hole.

[0008] Preferably, a threaded hole is provided on the mounting bracket, and the bidirectional screw is threadedly installed in the threaded hole.

[0009] Preferably, a rotation hole is provided on the movable cutter, and the fixed shaft is rotatably installed in the rotation hole.

[0010] Preferably, the connecting frame is provided with two arc-shaped guide grooves, and linkage blocks are movably installed in the two arc-shaped guide grooves, and the two linkage blocks are fixedly installed on one side of the two movable blocks respectively.

[0011] Preferably, a limiting sliding groove is provided on the connecting frame, and the U-shaped sliding block is slidably installed in the limiting sliding groove.

[0012] Preferably, a movable hole is provided on the movable block, and the connecting shaft is rotatably installed in the movable hole.

[0013] Compared with the prior art, the beneficial effects of the present invention are:

[0014] (1) Through the arrangement of the motor, movable cutter and other structures, when the PVC film roll in use is too wide, the two movable cutters can be adjusted by driving the motor to make them close to each other, and the continuously moving movable cutters will slowly contact the pulled PVC film roll. When the PVC film roll contacts the movable cutters, it will be cut by the movable cutters. The moving distance of the movable cutters can be adjusted according to the required width of the PVC film roll to achieve the effect of cutting both ends of the PVC film roll, so that the pulled PVC film roll is more closely matched with the size of the sheet, thereby avoiding the PVC film roll being too wide to affect the packaging effect and avoiding repeated replacement of the PVC film roll;

[0015] (2) Through the setting of the second cylinder, when it is necessary to cut the pulled PVC film roll, the angles of the two movable cutters can be adjusted by driving the first cylinder so that the blades of the movable cutters are completely facing the PVC film roll. Then, the second cylinder is started to tighten the PVC film roll, and the two movable cutters are moved toward the direction of the PVC film roll by the driving motor. During the movement, the PVC film roll will be slowly cut, completing the cutting operation without manual cutting, which is convenient and quick. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a structural diagram of the utility model;

[0017] Figure 2 It is a schematic diagram of the local structure of the utility model;

[0018] Figure 3 This is a schematic diagram of the connection structure of the fixing strip part of the utility model;

[0019] Figure 4 This is a schematic structural diagram of the mounting frame portion of the utility model;

[0020] Figure 5 This is a schematic structural diagram of the movable cutting knife portion of the utility model;

[0021] Figure 6 This is a structural diagram of the connecting frame portion of the utility model;

[0022] Figure 7 It is a structural schematic diagram of the arc-shaped guide groove part of the utility model.

[0023] Description of reference numerals:

[0024] 100. PVC film unwinding rack; 101. PVC film roll; 200. Connecting frame; 201. Support frame; 202. Limit rod; 203. Sliding frame; 204. Mounting frame; 205. Fixed shaft; 206. Movable cutter; 207. Bidirectional screw rod; 208. Motor; 209. Sliding hole; 210. Threaded hole; 211. Rotating hole; 300. Fixed bar; 301. First cylinder; 302. Linkage bar; 303. Linkage slot; 304. Linkage shaft; 400. Second cylinder; 401. U-shaped slider; 402. Connecting shaft; 403. Movable block; 404. Movable clamping bar; 405. Linkage block; 406. Arc guide slot; 407. Limiting slide slot; 408. Movable hole. DETAILED DESCRIPTION

[0025] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0026] like Figures 1 to 7As shown, a film unwinding device for a production line provided in this embodiment includes a PVC film unwinding frame 100, a PVC film roll 101 is provided on the PVC film unwinding frame 100, two connecting frames 200 are symmetrically fixedly installed on one side of the PVC film unwinding frame 100, a supporting frame 201 is fixedly installed on the bottom side of the two connecting frames 200, and the two supporting frames 201 are fixedly installed on the PVC film unwinding frame 100, two limiting rods 202 are fixedly installed on the side close to each other, two sliding frames 203 are slidably installed on the two limiting rods 202, the same mounting frame 204 is fixedly installed on the two sliding frames 203 on the same side, and the two mounting frames 204 are fixedly installed with fixed The fixed shaft 205 has a movable cutter 206 rotatably mounted on each of the two fixed shafts 205. The two mounting brackets 204 are threaded with a same bidirectional screw rod 207, which is rotatably mounted on the two connecting brackets 200. A motor 208 is fixedly mounted on one end of the bidirectional screw rod 207. The motor 208 is fixedly mounted on one side of the corresponding connecting bracket 200. The two movable cutters 206 are respectively located on both sides of the PVC film roll 101. The same fixed bar 300 is fixedly mounted on one side of the two connecting brackets 200 close to each other. Two first cylinders 301 are fixedly mounted on one side of the fixed bar 300. The output ends of the two first cylinders 301 pass through the fixed bar 300 and are fixedly mounted with the same linkage bar 300. 2. A linkage slot 303 is provided on the linkage bar 302, and two linkage shafts 304 are movably installed in the linkage slot 303. The two linkage shafts 304 are respectively fixedly installed on the bottom sides of the two movable cutters 206. A second cylinder 400 is fixedly installed on one side of the two connecting frames 200. The output ends of the two second cylinders 400 are fixedly installed with a U-shaped slider 401. Two connecting shafts 402 are symmetrically fixedly installed on one side of the two U-shaped sliders 401. A movable block 403 is rotatably installed on each of the four connecting shafts 402. The two movable blocks 403 on the same side are fixedly installed with the same movable clamping bar 404 on the side close to each other. Rubber pads are fixedly installed on the side close to each other of the two movable clamping bars 404. By driving The driving motor 208 can adjust the two movable cutters 206 to make them approach each other. The movable cutters 206 approaching each other will slowly contact the two sides of the pulled out PVC film roll 101, so that the two sides of the PVC film roll 101 can be cut by the movable cutters 206 while the PVC film roll 101 is pulled out, thereby achieving the effect of reducing the width of the PVC film roll 101. Driving the two second cylinders 400 can make the PVC film roll 101 clamped by the movable clamping strips 404 be tightened, and then driving the two first cylinders 301 to adjust the angles of the two movable cutters 206, with the knife tips facing the PVC film roll 101. Thereafter, the two movable cutters 206 are controlled by the driving motor 208 to approach each other, so that the pulled out PVC film roll 101 can be cut.

[0027] Further, such as Figure 4As shown, a sliding hole 209 is opened on the sliding frame 203, and the limiting rod 202 is slidably installed in the sliding hole 209. The moving sliding frame 203 will slide on the limiting rod 202 through the sliding hole 209, thereby limiting the moving direction of the sliding frame 203 and the mounting frame 204.

[0028] Further, such as Figure 4 As shown, a threaded hole 210 is provided on the mounting frame 204, and a bidirectional screw rod 207 is threadedly installed in the threaded hole 210. Through the cooperation between the bidirectional screw rod 207 and the two threaded holes 210, the rotating bidirectional screw rod 207 can drive the two mounting frames 204 to approach each other.

[0029] Further, such as Figure 5 As shown, a rotating hole 211 is opened on the movable cutter 206, and the fixed shaft 205 is rotatably installed in the rotating hole 211. The flipping movable cutter 206 will rotate on the fixed shaft 205 through the rotating hole 211, so that the movable cutter 206 can achieve a flipping effect.

[0030] Further, such as Figures 6 and 7 As shown, two arc-shaped guide grooves 406 are provided on the connecting frame 200, and linkage blocks 405 are movably installed in the two arc-shaped guide grooves 406. The two linkage blocks 405 are respectively fixedly installed on one side of the two movable blocks 403. The movable movable block 403 will drive the linkage block 405 to move in the arc-shaped guide groove 406, and the moving linkage block 405 will be squeezed by the arc-shaped guide groove 406.

[0031] Further, such as Figures 1 to 7 As shown, a limiting groove 407 is provided on the connecting frame 200, and the U-shaped slider 401 is slidably installed in the limiting groove 407. The output end of the second cylinder 400 will pull the U-shaped slider 401 to slide in the limiting groove 407, thereby limiting the moving direction of the U-shaped slider 401.

[0032] Further, such as Figure 6 As shown, a movable hole 408 is opened on the movable block 403, and the connecting shaft 402 is rotatably installed in the movable hole 408. The continuously moving U-shaped slider 401 will pull the two movable blocks 403 to move through the cooperation between the two connecting shafts 402 and the two movable holes 408.

[0033] Working principle:

[0034] During the film unloading process, it is necessary to use the packaging equipment to pull one end of the PVC film roll 101 to realize film unloading. If the PVC film roll 101 is too wide during film unloading, the bidirectional screw rod 207 can be driven to rotate by the driving motor 208. The rotating bidirectional screw rod 207 can drive the two simultaneous mounting frames 204 to approach each other. During the movement of the mounting frames 204, the sliding frame 203 is driven to move. The moving sliding frame 203 slides on the limit rod 202. The continuously moving mounting frame 204 drives the movable cutter 206 to move through the fixed shaft 205, thereby making the movable cutter 206 drive the linkage shaft 304 to move in the linkage groove 303 on the linkage bar 302, and the movable cutter 206 continuously approaches each other. The movable cutter 206 will slowly contact the two sides of the pulled out PVC film roll 101, so that the two sides can be cut by the movable cutter 206 while the PVC film roll 101 is pulled out, thereby reducing the width of the PVC film roll 101 so that it can match the covered plate. When the pulled out PVC film roll 101 needs to be cut, the two second cylinders 400 can be driven first, and the output end of the second cylinder 400 will pull the U-shaped slider 401 to slide, and the continuously moving U-shaped slider 401 will pull the two movable blocks 403 to move, and the moving movable block 403 will drive the linkage block 405 to move, and the moving linkage block 405 will be squeezed by the arc guide groove 406 to drive the movable The movable block 403 is flipped, and the flipped movable block 403 rotates in the connecting shaft 402 through the movable hole 408, thereby achieving the flipping effect, and then the two movable blocks 403 can flip in the direction of approaching each other, and the flipped two movable blocks 403 will respectively drive the two movable clamping bars 404 to move and approach each other, so that the two movable clamping bars 404 can respectively drive the rubber pads above to clamp the pulled out PVC film roll 101, and then the continuously moving U-shaped slider 401 will continue to pull the two movable blocks 403 to move, and the movable block 403 will continue to drive the movable clamping bar 404 to move, so that the movable clamping bar 404 can tighten the clamped PVC film roll 101, and then Then, the two first air cylinders 301 are started again. The output end of the first air cylinder 301 drives the linkage bar 302 to move, so that the moving linkage bar 302 drives the linkage slot 303 to move. During the movement of the linkage slot 303, the two linkage shafts 304 are squeezed, so that the two moving linkage shafts 304 respectively drive the two movable cutters 206 to flip. The two movable cutters 206 are continuously flipped to adjust their angles so that the two movable cutters 206 are in a parallel state with the knife tips facing the PVC film roll 101. After that, the two movable cutters 206 are controlled by the driving motor 208 to move closer to each other. The continuously moving movable cutter 206 cuts the pulled PVC film roll 101 for subsequent use.

[0035] Obviously, those skilled in the art may make various modifications and variations to the present invention without departing from the spirit and scope of the present invention. Thus, if such modifications and variations fall within the scope of the claims of the present invention and their equivalents, the present invention is intended to include such modifications and variations.

Claims

1. A film-laying device for a production line, comprising a PVC film-laying frame (100), wherein a PVC film roll (101) is provided on the PVC film-laying frame (100), characterized in that: Two connecting frames (200) are symmetrically fixedly installed on one side of the PVC film unwinding frame (100), and a support frame (201) is fixedly installed on the bottom side of the two connecting frames (200). The two support frames (201) are fixedly installed on the PVC film unwinding frame (100). Two limiting rods (202) are fixedly installed on the side close to each other of the two connecting frames (200), and two sliding frames (203) are slidably installed on the two limiting rods (202). The same mounting frame (204) is fixedly installed on the two sliding frames (203) on the same side. ), a fixed shaft (205) is fixedly mounted on each of the two mounting frames (204), a movable cutter (206) is rotatably mounted on each of the two fixed shafts (205), a same bidirectional screw rod (207) is threadedly mounted on each of the two mounting frames (204), the bidirectional screw rod (207) is rotatably mounted on the two connecting frames (200), a motor (208) is fixedly mounted on one end of the bidirectional screw rod (207), and the motor (208) is fixedly mounted on one side of a corresponding connecting frame (200), and the two movable cutters (206) are respectively located on the PVC film roll (101 ), a fixed bar (300) is fixedly installed on one side of the two connecting frames (200) close to each other, two first cylinders (301) are fixedly installed on one side of the fixed bar (300), the output ends of the two first cylinders (301) both pass through the fixed bar (300) and are fixedly installed with a same linkage bar (302), a linkage groove (303) is provided on the linkage bar (302), two linkage shafts (304) are movably installed in the linkage groove (303), and the two linkage shafts (304) are respectively fixedly installed on the bottom sides of the two movable cutting knives (206) A second cylinder (400) is fixedly mounted on one side of the two connecting frames (200), a U-shaped slider (401) is fixedly mounted on the output ends of the two second cylinders (400), two connecting shafts (402) are symmetrically fixedly mounted on one side of the two U-shaped sliders (401), movable blocks (403) are rotatably mounted on the four connecting shafts (402), a same movable clamping strip (404) is fixedly mounted on the side of the two movable blocks (403) on the same side close to each other, and a rubber pad is fixedly mounted on the side of the two movable clamping strips (404) close to each other.

2. A film-laying device for a production line according to claim 1, characterized in that: The sliding frame (203) is provided with a sliding hole (209), and the limiting rod (202) is slidably installed in the sliding hole (209).

3. The film-laying device for a production line according to claim 1, characterized in that: A threaded hole (210) is provided on the mounting frame (204), and a bidirectional screw rod (207) is threadedly mounted in the threaded hole (210).

4. The film-laying device for a production line according to claim 1, characterized in that: The movable cutter (206) is provided with a rotation hole (211), and the fixed shaft (205) is rotatably mounted in the rotation hole (211).

5. The film-laying device for a production line according to claim 1, characterized in that: The connecting frame (200) is provided with two arc-shaped guide grooves (406), and linkage blocks (405) are movably installed in the two arc-shaped guide grooves (406). The two linkage blocks (405) are respectively fixedly installed on one side of the two movable blocks (403).

6. The film-laying device for a production line according to claim 1, characterized in that: The connecting frame (200) is provided with a limiting sliding groove (407), and the U-shaped sliding block (401) is slidably installed in the limiting sliding groove (407).

7. The film-laying device for a production line according to claim 1, characterized in that: The movable block (403) is provided with a movable hole (408), and the connecting shaft (402) is rotatably installed in the movable hole (408).

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