Film roll changing mechanism of a film lamination machine

Abstract

The application relates to the technical field of film wrapping machines, in particular to a film roll replacing mechanism of a film wrapping machine, which comprises a film roll placing frame and a sliding frame, a distance adjusting mechanism is arranged on the sliding frame, the distance adjusting mechanism comprises a positive and negative screw rod, the positive and negative screw rod is threadedly connected with sliding blocks, one end of the sliding frame is fixedly connected with a sleeve, the sleeve is threadedly connected with a screw and abuts against the circumferential outer wall of the positive and negative screw rod. The positive and negative screw rod is matched with the threaded holes of the two sliding blocks, the sliding blocks are linearly slid under the limitation of the sliding frame, so that the sliding blocks are centrally arranged or oppositely moved, after the movement, the sliding blocks are locked by tightening the screw and abutting against the circumferential outer wall of the positive and negative screw rod, so that the self-rotation of the sliding blocks is avoided, the two brackets are relatively slid by the positive and negative screw rod, so that the distance between the two brackets is adjustable, and the film rolls with different lengths can be matched.

Description

Technical Field

[0001] This application relates to the field of film rolling machine technology, and in particular to a film roll changing mechanism for a film rolling machine. Background Technology

[0002] Wrapping machines are used in various packaging and palletizing industries. Automatic wrapping machines operate by supplying film rolls to wrap and seal pallets of various sizes.

[0003] A search revealed Chinese Patent Publication No. CN222592965U, which discloses a film roll changing mechanism for a film wrapping machine. This mechanism includes a frame with a lifting mechanism inside. A connecting rod is connected to the front end of the lifting mechanism, and supports are connected to the left and right ends of the connecting rod. A film roll is mounted on the supports, and a film roll is wrapped around it. Positioning legs are located on the left and right sides of the front end of the frame, and positioning rubber blocks are located at the left and right ends of the frame. Compared with existing technologies, this mechanism allows for simple and rapid positioning, is convenient and efficient, reduces downtime, and improves palletizing efficiency.

[0004] Regarding the aforementioned related technologies, the inventors have discovered the following drawbacks: The patent has a separate lifting mechanism to raise and lower the film roll. First, the lifting mechanism has a fixed structure, which is not convenient to adapt to film rolls of different lengths. Second, when the film roll needs to be replaced, since the film wrapping machine is not equipped with a lifting mechanism, the lifting mechanism needs to be moved back and forth to replace the film roll. After the film roll is replaced on the bracket, the lifting mechanism needs to be removed, making the replacement process very cumbersome.

[0005] Therefore, in response to the above problems, the applicant provides a film roll changing mechanism for a film wrapping machine. Utility Model Content

[0006] In order to solve the problems mentioned in the background art, this application provides a film roll changing mechanism for a film rolling machine.

[0007] The film roll changing mechanism for a film wrapping machine provided in this application adopts the following technical solution: A film roll changing mechanism for a film rolling machine includes a film roll placement frame and a sliding frame. The sliding frame is provided with an adjustment mechanism, which includes a positive and negative threaded rod. The positive and negative threaded rod is threadedly connected to a slider. A sleeve is fixedly connected to one end of the sliding frame. A screw is threadedly connected to the sleeve and abuts against the outer circumference of the positive and negative threaded rod.

[0008] The film roll placement rack is equipped with a positioning mechanism, which includes a fixing rod. A support plate and a knob rod are fixedly connected to the outer circumference of the fixing rod. The knob rod is located in a sliding frame A, and the sliding frame A is threaded with a bolt that passes through a post.

[0009] Optionally, it also includes a film wrapping machine, on one side of which a film roll placement rack is fixedly connected. The film roll placement rack has "I"-shaped grooves on both sides of its front surface, and placement slots are provided on both sides of the film roll placement rack.

[0010] Optionally, a fixed rod is rotatably connected to the top of the film roll placement rack, and a tray and a knob are fixedly connected to both ends of the fixed rod. The trays are located on both sides of the film roll placement rack, and the fixed rod, trays and knobs are combined to form a rotating assembly.

[0011] Optionally, each of the two placement slots is fixedly connected with a post, and the post is slidably connected to a sliding frame A. Both the post and the sliding frame A have horizontal through holes, and bolts are inserted into the through holes of the post and the sliding frame A. The two knob rods are inserted into the corresponding sliding frames A, and the post, the sliding frame A and the bolts are combined to form a limiting assembly.

[0012] Optionally, a synchronous dual-axis motor is bolted to the top of the film roll placement rack. Winding wheels are fixedly connected to the two ends of the synchronous dual-axis motor. A steel wire rope is wound on the winding wheels. One end of the steel wire rope is bolted to a lifting ring. The lifting ring is fixedly connected to the top surface of the sliding frame. An "I"-shaped slider is fixedly connected to one side of the sliding frame. The "I"-shaped slider is slidably connected to the "I"-shaped groove.

[0013] Optionally, two sliders are slidably connected to the sliding frame. The two sliders are respectively provided with a forward threaded hole and a reverse threaded hole. Both ends of the forward and reverse threaded rod are provided with a forward thread and a reverse thread. The forward threaded end of the forward and reverse threaded rod is threaded into the forward threaded hole of the slider, and the reverse threaded end of the forward and reverse threaded rod is threaded into the reverse threaded hole of the slider. One end of the forward and reverse threaded rod is inserted into the crank handle.

[0014] Optionally, each of the two sliders is fixedly connected to a bracket, and the two brackets together hold the two ends of the film roll.

[0015] In summary, this application includes the following beneficial technical effects: In this invention, the positive and negative threaded rods are engaged with the threaded holes of the two sliders, and the sliders are limited by the sliding frame to slide in a straight line, thereby making the sliders move in the center or in the opposite direction. After moving, the screws are tightened to make them abut against the outer wall of the positive and negative threaded rods to lock them and prevent them from rotating. The positive and negative threaded rods drive the brackets to slide relative to each other, thereby making the distance between the two brackets adjustable, thus adapting to film rolls of different lengths.

[0016] This invention utilizes a synchronous dual-axis motor mounted on a film roll placement rack to drive the roll to rise and fall. Once the film roll reaches its designated position, a support plate holds the sliding frame, which then slides out of the insert post. A bolt is inserted through the through hole of the insert post and the sliding frame, and the bolt is locked. At this point, the knob is limited by the sliding frame and remains stationary. The support plate holds the sliding frame to prevent it from moving downwards, thus simplifying the replacement process. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the overall structure in an embodiment of this application; Figure 2 This is a schematic diagram of the disassembled structure of the film roll placement rack and the spacing adjustment mechanism in the embodiments of this application; Figure 3 This is a schematic diagram of the card positioning mechanism structure in an embodiment of this application; Figure 4 This is an embodiment of the present application. Figure 3 A magnified schematic diagram of the structure at point A; Figure 5 This is a schematic diagram of the rotating component and the limiting component in the embodiments of this application; Figure 6 This is a schematic diagram of the disassembled structure of the distance adjustment mechanism in an embodiment of this application.

[0018] Reference numerals: 1. Film wrapping machine; 100. Film roll placement rack; 101. "I"-shaped chute; 1000. Placement slot; 2. Rotating assembly; 20. Fixing rod; 21. Support plate; 22. Knob rod; 3. Limiting assembly; 30. Insert post; 31. Sliding frame A; 32. Bolt; 4. "I"-shaped slider; 5. Sliding frame; 6. Slider; 7. Positive and negative threaded rod; 8. Handle; 9. Sleeve; 10. Screw; 11. Lifting ring; 12. Steel wire rope; 13. Synchronous dual-axis motor; 14. Bracket; 15. Film roll. Detailed Implementation

[0019] The following is in conjunction with the appendix Figure 1-6 This application will be described in further detail.

[0020] This application discloses a film roll changing mechanism for a film rolling machine.

[0021] like Figure 1-6 As shown, a film roll changing mechanism for a film rolling machine includes a film roll placement frame 100 and a sliding frame 5. The sliding frame 5 is provided with an adjustment mechanism, which includes a positive and negative threaded rod 7. The positive and negative threaded rod 7 is threadedly connected to a slider 6. A sleeve 9 is fixedly connected to one end of the sliding frame 5. A screw 10 is threadedly connected to the sleeve 9 and abuts against the outer circumference of the positive and negative threaded rod 7.

[0022] The film roll placement rack 100 is provided with a positioning mechanism, which includes a fixing rod 20. The outer circumference of the fixing rod 20 is fixedly connected to a support plate 21 and a knob rod 22. The knob rod 22 is located in a sliding frame A31. The sliding frame A31 is threadedly connected to a bolt 32 and passes through a post 30.

[0023] Please see Figure 1 and Figure 2 It also includes a film wrapping machine 1, on one side of which a film roll placement rack 100 is fixedly connected. The film roll placement rack 100 has an "I"-shaped groove 101 on both sides of its front surface, and a placement slot 1000 is provided on both sides of the film roll placement rack 100. This film wrapping machine 1 is existing technology, and its principle will not be described in detail here.

[0024] Please see Figure 3 and Figure 5 The top of the film roll placement rack 100 is rotatably connected to a fixed rod 20. Both ends of the fixed rod 20 are fixedly connected to a support plate 21 and a knob rod 22. The support plates 21 are located on both sides of the film roll placement rack 100. The fixed rod 20, the support plate 21 and the knob rod 22 are combined to form a rotating assembly 2. When the operator holds the knob rod 22, the knob rod 22 can be rotated around the fixed rod 20 to make it vertical. The included angle between the support plate 21 and the knob rod 22 is 90 degrees.

[0025] Please see Figures 3 to 5 Each of the two placement slots 1000 is fixedly connected with a post 30, and a sliding frame A31 is slidably connected to the post 30. Both the post 30 and the sliding frame A31 have horizontal through holes, and bolts 32 are inserted into the through holes of the post 30 and the sliding frame A31. The two knob rods 22 are inserted into the corresponding sliding frames A31. The post 30, the sliding frame A31 and the bolts 32 are combined to form a limiting component 3. When the rotating component 2 is rotated, the sliding frame A31 is located in the placement slot 1000. After the rotating component 2 is rotated to the position, the sliding frame A31 slides out of the post 30, and the bolts 32 pass through the through holes of the post 30 and the sliding frame A31 and are locked. At this time, the knob rods 22 are limited by the sliding frame A31 and remain stationary.

[0026] Please see Figure 2The top of the membrane roll placement rack 100 is bolted to a synchronous dual-axis motor 13. Two winding wheels are fixedly connected to the two ends of the synchronous dual-axis motor 13, and a steel wire rope 12 is wound on the winding wheels. One end of the steel wire rope 12 is bolted to a lifting ring 11, which is fixedly connected to the top surface of the sliding frame 5. An "I"-shaped slider 4 is fixedly connected to one side of the sliding frame 5. The "I"-shaped slider 4 is slidably connected to an "I"-shaped groove 101. The synchronous dual-axis motor 13 is externally powered, and it drives the winding wheels to retract and extend, which in turn drives the steel wire rope 12 to retract and extend, thereby raising or lowering the sliding frame 5. The sliding of the "I"-shaped slider 4 within the membrane roll placement rack 100 limits the sliding position of the sliding frame 5. This structure falls within the scope of elevators and is existing technology, so further details are omitted.

[0027] Please see Figure 2 and Figure 6 Two sliders 6 are slidably connected to the sliding frame 5. The two sliders 6 are respectively provided with a forward threaded hole and a reverse threaded hole. The two ends of the forward and reverse threaded rod 7 are provided with a forward thread and a reverse thread. The forward threaded end of the forward and reverse threaded rod 7 is threaded into the forward threaded hole of the slider 6, and the reverse threaded end of the forward and reverse threaded rod 7 is threaded into the reverse threaded hole of the slider 6. One end of the forward and reverse threaded rod 7 is inserted into the crank handle 8. When the crank handle 8 is cranked, the crank handle 8 is threadedly connected to the two sliders 6 and is limited by the sliding frame 5 to slide the sliders 6 in a straight line, thereby causing the sliders 6 to move in the center or in the opposite direction. After movement, the screws 10 are tightened to make them abut against the outer circumference of the forward and reverse threaded rod 7 to lock it and prevent it from rotating.

[0028] Please see Figure 2 Each of the two sliders 6 is fixedly connected to a bracket 14, and the two brackets 14 together hold the two ends of the film roll 15.

[0029] The implementation principle of the film roll changing mechanism of the film rolling machine in this application embodiment is as follows: The positive and negative threaded rod 7 engages with the threaded holes of the two sliders 6, and the sliders 6 are limited by the sliding frame 5 to slide linearly, thereby making the sliders 6 move in the center or in the opposite direction. After moving, the screws 10 are tightened to make them abut against the outer circumference of the positive and negative threaded rod 7 to lock it and prevent it from rotating. As described above, the positive and negative threaded rod 7 drives the brackets 14 to slide relative to each other, thereby making the distance between the two brackets 14 adjustable, thus adapting to membrane rolls 15 of different lengths.

[0030] The synchronous dual-axis motor 13 is connected to an external power supply. The synchronous dual-axis motor 13 drives the winding wheel to wind and unwind. The winding wheel drives the steel wire rope 12 to wind and unwind, thereby raising or lowering the sliding frame 5, thereby raising or lowering the film roll 15. After the film roll 15 is raised to the required position.

[0031] The operator holds the knob lever 22, which can rotate around the fixed rod 20 to make it vertical, and the included angle between the support plate 21 and the knob lever 22 is 90 degrees. The sliding frame A31 is slid out of the insert post 30, and the bolt 32 is inserted through the through hole of the insert post 30 and the sliding frame A31 and locked. At this time, the knob lever 22 is limited by the sliding frame A31 and remains stationary. At this time, the support plate 21 supports the sliding frame 5 to prevent it from moving down.

[0032] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A film roll changing mechanism for a film rolling machine, characterized in that: It includes a film roll placement rack (100) and a sliding frame (5). The sliding frame (5) is provided with an adjustment mechanism. The adjustment mechanism includes a positive and negative threaded rod (7). The positive and negative threaded rod (7) is threadedly connected to a slider (6). A sleeve (9) is fixedly connected to one end of the sliding frame (5). A screw (10) is threadedly connected to the sleeve (9) and abuts against the outer circumference of the positive and negative threaded rod (7). The film roll placement rack (100) is provided with a positioning mechanism, which includes a fixing rod (20). The outer circumference of the fixing rod (20) is fixedly connected to a support plate (21) and a knob rod (22). The knob rod (22) is located in a sliding frame A (31). The sliding frame A (31) is threadedly connected to a bolt (32) and passes through a post (30).

2. The film roll changing mechanism of a film rolling machine according to claim 1, characterized in that: It also includes a film wrapping machine (1), on one side of which a film roll placement rack (100) is fixedly connected. The film roll placement rack (100) has an "I"-shaped groove (101) on both sides of the front. The film roll placement rack (100) has a placement groove (1000) on both sides.

3. The film roll changing mechanism of a film rolling machine according to claim 2, characterized in that: The top of the film roll placement rack (100) is rotatably connected to a fixed rod (20). Both ends of the fixed rod (20) are fixedly connected to a tray (21) and a knob rod (22). The tray (21) is located on both sides of the film roll placement rack (100). The fixed rod (20), tray (21) and knob rod (22) are combined to form a rotating assembly (2).

4. The film roll changing mechanism of a film rolling machine according to claim 2, characterized in that: Both of the placement slots (1000) are fixedly connected with a pin (30), and the pin (30) is slidably connected to a sliding frame A (31). Both the pin (30) and the sliding frame A (31) have horizontal through holes. The through holes of the pin (30) and the sliding frame A (31) are connected to a bolt (32). The two knob rods (22) are inserted into the corresponding sliding frames A (31). The pin (30), the sliding frame A (31) and the bolt (32) are combined to form a limiting component (3).

5. The film roll changing mechanism of a film rolling machine according to claim 1, characterized in that: The top of the film roll placement rack (100) is bolted to a synchronous dual-axis motor (13). The two ends of the synchronous dual-axis motor (13) are fixedly connected to winding wheels. A steel wire rope (12) is wound on the winding wheels. One end of the steel wire rope (12) is bolted to a lifting ring (11). The lifting ring (11) is fixedly connected to the top surface of the sliding frame (5). One side of the sliding frame (5) is fixedly connected to an "I"-shaped slider (4). The "I"-shaped slider (4) is slidably connected to the "I"-shaped groove (101).

6. The film roll changing mechanism of a film wrapping machine according to claim 1, characterized in that: Two sliders (6) are slidably connected to the sliding frame (5). The two sliders (6) are respectively provided with a forward threaded hole and a reverse threaded hole. The two ends of the forward and reverse threaded rod (7) are provided with a forward thread and a reverse thread. The forward threaded end of the forward and reverse threaded rod (7) is threaded to the forward threaded hole of the slider (6), and the reverse threaded end of the forward and reverse threaded rod (7) is threaded to the reverse threaded hole of the slider (6). One end of the forward and reverse threaded rod (7) is inserted into the crank handle (8).

7. The film roll changing mechanism of a film rolling machine according to claim 6, characterized in that: Each of the two sliders (6) is fixedly connected to a bracket (14), and the two brackets (14) together hold the two ends of the film roll (15).

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