A stretch film slitting and rewinding machine

Abstract

The present invention provides a winding film slitting and rewinding machine, which relates to the technical field of slitting and rewinding equipment, and comprises a chassis, wherein an unwinding roller is installed at the inlet end of the chassis, and two groups of clamping rollers are installed on the inner wall at the middle position of the chassis, and the spacing and vertical positions of multiple groups of transverse cutters are adjusted by an upper sliding frame and a lower sliding frame of the slitting component, and the corresponding transverse cutters are selected according to the number and position of the film to be cut, so as to avoid the inconvenience of reinstalling and disassembling the cutters, and the winding roller installed on the conveyor belt at the rear end of the chassis is driven by a driving motor on the side plate to rotate the winding roller on the inner vertical surface of the conveyor belt to wind the film, and at the same time, it is cut by the vertical cutter after the winding is completed, and the conveyor belt circulates and replaces the new winding roller to the winding position, so as to save the time spent on manual replacement and cutting, thereby improving the overall processing efficiency of the device and the convenience of slitting and loading and unloading.

Description

Technical Field

[0001] The invention relates to the technical field of slitting and rewinding equipment, in particular to a wrapping film slitting and rewinding machine. Background Art

[0002] When the existing slitting and rewinding unit for slitting and rewinding stretch film is working, the stretch film roll to be slit is first placed steadily on the unwinding unit through the lifting equipment and adjusted to a suitable position, the end of the stretch film is found and pulled, and it is wound around the tensioning unit to the rewinding unit, the distance of the cutting knife is manually adjusted and measured to meet the specifications and dimensions required by the process standards, the rewinding unit is started, and it stops after rewinding a certain length, the rewound stretch film is removed, the stretch film cut by the cutting knife is wound onto the rewinding unit, and the rewinding unit is started to start rewinding.

[0003] Existing technologies, such as the XHD-500 wrap film slitting and rewinding machine, require manual cutting of the film and removal of the winding roller and replacement with a new one after each unwinding of the winding roller. This method requires manual operation, which is inconvenient, and the efficiency of slitting the film is also low. In addition, in the existing technology, the film needs to be cut according to the width and then rewound on different winding rollers. During this process, the distance of the cutting knife needs to be manually adjusted to slit the film into films of different widths. Because the number of films to be cut cannot be determined, the number and installation position of the cutting knife need to be temporarily adjusted, which affects the slitting and rewinding efficiency of the film. Summary of the invention

[0004] In view of the shortcomings of the prior art, the purpose of the present invention is to provide a wrap film slitting and rewinding machine to solve the problems raised in the above-mentioned background technology. The present invention has a novel structure. The spacing and vertical positions of multiple groups of transverse cutters are adjusted by the upper sliding frame and the lower sliding frame of the slitting assembly. The corresponding transverse cutters are selected according to the number and position of the film to be slit, thereby avoiding the inconvenience of reinstalling and disassembling the cutters. The winding roller is installed on the conveyor belt at the rear end of the chassis. The driving motor on the side panel drives the winding roller on the inner vertical surface of the conveyor belt to rotate to wind the film. At the same time, after the winding is completed, it is cut by the vertical cutter. The conveyor belt circulates and replaces the new winding roller to the winding position, thereby saving the time spent on manual replacement and cutting, thereby improving the overall processing efficiency of the device and the convenience of slitting and loading and unloading.

[0005] In order to achieve the above-mentioned purpose, the present invention is realized through the following technical scheme: a winding film slitting and rewinding machine includes a chassis, a unwinding roller is installed at the inlet end of the chassis, and two groups of pressure rollers are installed on the inner wall of the middle position of the chassis, a slitting assembly is provided at a position between the pressure roller and the unwinding roller inside the chassis, the slitting assembly includes an upper sliding frame, a lower sliding frame is fixed at the bottom of the upper sliding frame, and multiple groups of horizontal cutting knives are equidistantly arranged on the surfaces of the upper sliding frame and the lower sliding frame, a winding assembly is provided at the outlet end of the chassis, and the winding assembly includes side plates, notches are provided on both sides of the outlet end of the chassis, and the side plates slide in the notches on both sides of the chassis, a conveyor belt is installed on the inner surface of the side plate, a winding roller is equidistantly installed between the two groups of the conveyor belts, and the winding roller is movably installed on the belt of the conveyor belt, two groups of movable frames are provided inside the chassis between the winding assembly and the pressure roller, and the movable frames are respectively fixed on the top and bottom of the chassis, and a vertical cutting knife is installed between the two groups of the movable frames.

[0006] Furthermore, mounting positions are provided on both sides of the inlet end of the chassis, and mounting seats are rotatably sleeved on both ends of the unwinding roller through bearings, and the mounting seats can be placed in the mounting positions at the inlet end of the chassis, and a wind hook lock is provided on the outer surface of the mounting seat in the same vertical line as the chassis.

[0007] Furthermore, the cutting assembly also includes a moving groove, the chassis is provided with moving grooves on both sides of the upper sliding frame and the lower sliding frame, and a moving block is slidably connected in the moving groove, the chassis is fixed with a first electric push rod at the top of the moving groove, and the extended end of the first electric push rod is fixed to the moving block, and the two sides of the upper sliding frame are rotatably connected to the moving block through bearings.

[0008] Furthermore, a slider is fixed on the top of the transverse cutter, and a mounting plate is slidably connected to the position of the slider at the top of the upper sliding frame, and a screw is engaged and inserted inside the mounting plate. The bottom of the screw is rotatably connected to the top of the slider through a bearing, and a locking bolt is inserted on one side of the mounting plate located at the top of the upper sliding frame.

[0009] Furthermore, a receiving groove is provided inside one end of the sliding frame facing the upper sliding frame, and a ball is provided inside the receiving groove. The ball can be snapped into the upper sliding frame and the lower sliding frame, and a first spring is fixed between the ball and the inner wall of the receiving groove.

[0010] Furthermore, a second electric push rod is rotatably mounted on the inner surface of the moving block via a rotating shaft, and an extended end of the second electric push rod is rotatably connected to the bottom of the upper sliding frame via the rotating shaft.

[0011] Furthermore, the winding assembly also includes a slot, slots are opened at the center of the two ends of the winding roller, and connecting rods are slidably inserted in the slots, a second spring is fixed between one end of the connecting rod and the inner wall of the slot, a through hole is opened at the position of the conveyor belt corresponding to the connecting rod, and the winding roller can be installed between the two sets of conveyor belts by inserting the connecting rod.

[0012] Furthermore, a plurality of drive motors are fixed on the outer surface of the side plate corresponding to the conveyor belt facing the vertical cutter, and a mounting bracket is fixed to the output end of the drive motor through the side plate, a fourth electric push rod is fixed to the other end of the mounting bracket, a socket is provided on the surface of the connecting rod, and the extended end of the fourth electric push rod can be inserted into the socket, and the output end of the drive motor is in the same straight line as the connecting rod.

[0013] Furthermore, a third electric push rod is fixed to the upper and lower sides of the outlet end of the chassis, and the extended end of the third electric push rod is fixedly connected to the outer surface of the side plate.

[0014] Furthermore, a screw rod device is installed inside the movable frame, and the upper and lower ends of the vertical cutter are meshed and sleeved on the surface of the screw rod device.

[0015] Beneficial effects of the invention: A winding film slitting and rewinding machine of the invention comprises a chassis; a pressing roller; a reeling roller; a mounting seat; a wind hook lock; a slitting assembly; a moving slot; a moving block; a first electric push rod; a second electric push rod; an upper sliding frame; a lower sliding frame; a mounting plate; a screw rod; a slider; a transverse cutter; a storage slot; a first spring; a ball; a rewinding assembly; a side plate; a conveyor belt; a rewinding roller; a third electric push rod; a connecting rod; a driving motor; a mounting frame; a fourth electric push rod; a jack; a slot; a second spring; a moving frame; a screw rod device; a vertical cutter;

[0016] 1. The present invention drives the side plate, the conveyor belt and the winding roller to move horizontally by the third electric push rod. On the one hand, it is convenient to remove the wound winding roller and install a new winding roller. On the other hand, after the winding is completed, it moves slightly outward to tighten the film, thereby cooperating with the vertical cutter to better cut the film.

[0017] 2. The present invention can be detached from the conveyor belt by retracting the connecting rod into the slot. Similarly, when installing the reel, first put the connecting rod into the slot, align it with the perforation of the conveyor belt, release the connecting rod and insert it on the conveyor belt through the elastic force of the second spring, so as to facilitate the installation and disassembly of the reel roller.

[0018] 3. The present invention uses the first electric push rod to drive the moving block to slide up and down along the moving groove to adjust the position of the transverse cutter, which is convenient for manually passing the film from the unwinding roller through the clamping roller. The second electric push rod drives the transverse cutter to rotate with the upper sliding frame to adjust the cutting angle.

[0019] 4. The present invention rotates the screw rod, the slider moves downward, the ball is squeezed and retracted into the storage groove, and when it moves to the lower sliding frame, the ball is penetrated by the elastic force of the first spring and is clamped in the lower sliding frame, so that the ball is clamped with the upper sliding frame and the lower sliding frame, thereby maintaining the stability of the tail end of the transverse cutter during cutting. The number of transverse cutters switched to the lower sliding frame is determined according to the number of films that need to be cut, and the remaining transverse cutters remain on the upper sliding frame and are not used, so that only the positions that need to be cut are cut.

[0020] 5. Compared with the prior art, the present invention adjusts the spacing and vertical positions of multiple groups of transverse cutters through the upper sliding frame and the lower sliding frame of the slitting assembly, selects the corresponding transverse cutter according to the number and position of the film to be slit, avoids the inconvenience of reinstalling and disassembling the cutter, and installs a winding roller on the conveyor belt at the rear end of the chassis. The driving motor on the side panel drives the winding roller on the inner vertical surface of the conveyor belt to rotate to wind the film. At the same time, the vertical cutter cuts the film after the winding is completed, and the conveyor belt rotates in a cycle to replace the new winding roller to the winding position, thereby saving the time spent on manual replacement and cutting, thereby improving the overall processing efficiency of the device and the convenience of slitting and loading and unloading. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a schematic diagram of the overall structure of a stretch film slitting and rewinding machine of the present invention;

[0022] Figure 2 It is a schematic structural diagram of a chassis inlet end of a stretch film slitting and rewinding machine of the present invention;

[0023] Figure 3 This is one of the schematic diagrams of the slitting assembly structure of a wrapping film slitting and rewinding machine of the present invention;

[0024] Figure 4 This is a second schematic diagram of the structure of a slitting component of a wrapping film slitting and rewinding machine according to the present invention;

[0025] Figure 5 This is one of the structural schematic diagrams of a winding assembly of a winding film slitting and rewinding machine of the present invention;

[0026] Figure 6 This is a second structural schematic diagram of a winding assembly of a wrapping film slitting and rewinding machine according to the present invention;

[0027] Figure 7 The present invention is a schematic diagram of the connection between the connecting rod and the winding roller of the winding film slitting and rewinding machine.

[0028] In the figure: 1, chassis; 11, clamping roller; 2, unwinding roller; 21, mounting seat; 22, wind hook lock; 3, slitting assembly; 31, moving slot; 32, moving block; 33, first electric push rod; 34, second electric push rod; 35, upper sliding frame; 36, lower sliding frame; 37, mounting plate; 38, screw; 39, slider; 310, horizontal cutter; 311, storage slot; 312, first spring; 313, ball; 4, winding assembly; 41, side plate; 42, conveyor belt; 43, winding roller; 44, third electric push rod; 45, connecting rod; 46, driving motor; 47, mounting frame; 48, fourth electric push rod; 49, jack; 410, slot; 411, second spring; 5, moving frame; 51, screw device; 52, vertical cutter. DETAILED DESCRIPTION

[0029] In order to make the technical means, creative features, objectives and effects achieved by the present invention easy to understand, the present invention is further explained below in conjunction with specific implementation methods.

[0030] See also Figures 1 to 7 The present invention provides a technical solution: a wrap film slitting and rewinding machine, comprising a chassis 1, an unwinding roller 2 is installed at the inlet end of the chassis 1, and two groups of clamping rollers 11 are installed on the inner wall at the middle position of the chassis 1, a slitting assembly 3 is provided at a position between the clamping roller 11 and the unwinding roller 2 inside the chassis 1, the slitting assembly 3 comprises an upper sliding frame 35, a lower sliding frame 36 is fixed at the bottom of the upper sliding frame 35, and a plurality of groups of transverse cutters 310 are equidistantly arranged on the surfaces of the upper sliding frame 35 and the lower sliding frame 36, a winding assembly 4 is provided at the outlet end of the chassis 1, and the winding assembly 4 comprises a side plate 41, notches are provided on both sides of the outlet end of the chassis 1, and the side plate 41 slides along the notches on both sides of the chassis 1, a conveyor belt 42 is installed on the inner surface of the side plate 41, and the two groups of the conveyor belt 42 Winding rollers 43 are installed equidistantly between them, and the winding rollers 43 are movably installed on the belts of the conveyor belt 42. Two groups of movable frames 5 are provided inside the chassis 1 between the winding assembly 4 and the pressure roller 11, and the movable frames 5 are respectively fixed on the top and bottom of the chassis 1. A vertical cutter 52 is installed between the two groups of movable frames 5. When the device is used, the unwinding roller 2 with the film is installed at the entrance end of the chassis 1, and the movable end of the film passes through the pressure roller 11. The film is cut as needed through the slitting assembly 3 and rolled up on different winding rollers 43. Then the winding assembly 4 drives the winding roller 43 to rotate, and the slit film is rolled up. After the rolling is completed, it is cut by the vertical cutter 52, and the winding roller 43 is transferred to the outside of the conveyor belt 42, so that it is convenient for humans to remove and replace the new winding roller 43.

[0031] In this embodiment, mounting positions are provided on both sides of the inlet end of the chassis 1, and mounting seats 21 are rotatably sleeved at both ends of the unwinding roller 2 through bearings, and the mounting seats 21 can be placed in the mounting positions at the inlet end of the chassis 1, and a wind hook lock 22 is provided on the outer surface of the mounting seat 21 on the same vertical line as the chassis 1. The unwinding roller 2 is installed at the inlet end of the chassis 1 through the mounting seat 21 and locked by the wind hook lock 22. When the unwinding roller 2 needs to be replaced, the wind hook lock 22 is opened to take out the unwinding roller 2.

[0032] In this embodiment, the slitting assembly 3 also includes a moving groove 31, and the chassis 1 is provided with moving grooves 31 on both sides of the upper sliding frame 35 and the lower sliding frame 36, and a moving block 32 is slidably connected in the moving groove 31, and a first electric push rod 33 is fixed to the top of the chassis 1 at the moving groove 31, and the extended end of the first electric push rod 33 is fixed to the moving block 32, and the two sides of the upper sliding frame 35 are rotatably connected to the moving block 32 through bearings, and a slider 39 is fixed to the top of the transverse cutter 310, and a mounting plate 37 is slidably connected to the position of the slider 39 at the top of the upper sliding frame 35, and a screw 38 is meshed and plugged inside the mounting plate 37 The bottom of the screw rod 38 is rotatably connected to the top of the slider 39 through a bearing, and a locking bolt is inserted on one side of the mounting plate 37 located at the top of the upper sliding frame 35. A receiving groove 311 is provided inside the end of the sliding frame facing the upper sliding frame 35, and a ball 313 is provided inside the receiving groove 311. The ball 313 can be snapped into the upper sliding frame 35 and the lower sliding frame 36, and a first spring 312 is fixed between the ball 313 and the inner wall of the receiving groove 311. A second electric push rod 34 is rotatably installed on the inner surface of the moving block 32 through a rotating shaft, and the extended end of the second electric push rod 34 is rotatably connected to the bottom of the upper sliding frame 35 through a rotating shaft. The upper sliding frame 35 and the lower sliding frame 36 are arranged on the same vertical line, and the openings are both facing one side of the clamping roller 11. First, according to the number of slit films and the mounting plate 37 located at a similar position along the upper sliding frame 35, after determining the position of the transverse cutter 310, the mounting plate 37 is locked by the locking bolt, and then the screw rod 38 is rotated, the slider 39 moves downward, and the ball 313 is squeezed and retracted into the storage groove 311. When moving to the lower sliding frame 36, the ball 313 is subjected to the elastic force of the first spring 312 to penetrate and be clamped in the lower sliding frame 36, so that the ball 313 is clamped with the upper sliding frame 35 and the lower sliding frame 36, thereby maintaining the transverse cutter. The stability of the tail end 310 during cutting, the number of transverse cutters 310 switched to the lower sliding frame 36 is determined according to the number of films that need to be cut, and the remaining transverse cutters 310 remain on the upper sliding frame 35 and are not used, and then only the positions that need to be cut are cut (in this part, the film can be cut and wound separately in cooperation with the winding component 4), the first electric push rod 33 drives the moving block 32 to slide up and down along the moving groove 31 to adjust the position of the transverse cutter 310, so as to facilitate the manual passing of the film from the unwinding roller 2 through the clamping roller 11, and the second electric push rod 34 drives the transverse cutter 310 to rotate with the upper sliding frame 35 to adjust the cutting angle.

[0033] In this embodiment, the winding assembly 4 also includes a slot 410, slots 410 are provided at the centers of both ends of the winding roller 43, and a connecting rod 45 is slidably inserted in the slot 410, a second spring 411 is fixed between one end of the connecting rod 45 and the inner wall of the slot 410, a through hole is provided at the position of the belt of the conveyor belt 42 corresponding to the connecting rod 45, and the winding roller 43 can be installed between the two groups of conveyor belts 42 by means of the connecting rod 45, a plurality of drive motors 46 are fixed on the outer surface of the side plate 41 corresponding to the conveyor belt 42 facing the vertical cutter 52, and a mounting frame 47 is fixed to the output end of the drive motor 46 through the side plate 41, a fourth electric push rod 48 is fixed to the other end of the mounting frame 47, and the surface of the connecting rod 45 A plug hole 49 is provided on the upper side, and the extended end of the fourth electric push rod 48 can be inserted into the plug hole 49, the output end of the driving motor 46 is in the same straight line with the connecting rod 45, and the third electric push rod 44 is fixed on the upper and lower sides of the outlet end of the chassis 1, and the extended end of the third electric push rod 44 is fixedly connected to the outer surface of the side plate 41, and the winding roller 43 is plugged into the belt of the conveyor belt 42 through the connecting rods 45 at both ends. An elastic wrapping layer can be provided inside the perforated belt of the conveyor belt 42 to maintain the stability of the connecting rod 45 after the connection. At the same time, when the connecting rod 45 is connected, it is necessary to keep the position of the plug hole 49 corresponding to the extended end of the fourth electric push rod 48 when it is rotated to the vertical plane, and the winding roller 43 located on the vertical surface inside the conveyor belt 42 After the extended end of the fourth electric push rod 48 is inserted into the socket 49, the plug-in locking of the winding roller 43 and the drive motor 46 is completed. The drive motor 46 can drive the connecting rod 45 and the winding roller 43 to rotate through the mounting frame 47 and the fourth electric push rod 48 to wind the film. Since each set of winding rollers 43 has a connecting rod 45 and a socket 49, a new winding roller 43 can be directly replaced for use (the connecting rod 45 and the slot 410 are slidably connected, and the sliding of the connecting rod 45 can be prevented by some limit grooves. This structure is a common structure and is not shown in the figure). After the winding roller 43 is wound, it rotates to the vertical surface outside the conveyor belt 42, and the connecting rods 45 at both ends are manually retracted into the slot 410 to disengage the film. The conveyor belt 42 is similarly installed and wound up. First, the connecting rod 45 is inserted into the slot 410. After aligning the conveyor belt 42 with the belt perforations, the connecting rod 45 is released and inserted into the conveyor belt 42 through the elastic force of the second spring 411 (the conveyor belt 42 is located in a common pulley and belt structure and is driven by a motor). The third electric push rod 44 drives the side plate 41, the conveyor belt 42 and the winding roller 43 to move horizontally. On the one hand, it is convenient to remove the wound winding roller 43 and install a new winding roller 43. On the other hand, after the winding is completed, it moves slightly outward to tighten the film, thereby cooperating with the vertical cutter 52 to better cut the film (the winding roller 43 is installed on the conveyor belt 42 and can be directly replaced to reduce the time for re-disassembly and re-installation).

[0034] In this embodiment, a screw device 51 is installed inside the movable frame 5, and the upper and lower ends of the vertical cutter 52 are meshed and sleeved on the surface of the screw device 51. The screw device 51 can be a common threaded rod and a motor-coordinated structure to drive the vertical cutter 52 to move along the movable frame 5 to cut the tensioned film. It can also cut the film wound by multiple winding rollers 43 at the same time, thereby improving the winding efficiency.

[0035] When the device is used, the unwinding roller 2 with the film is installed at the entrance end of the chassis 1 through the mounting seat 21 and locked through the wind hook lock 22. When the unwinding roller 2 needs to be replaced, the wind hook lock 22 is opened to take out the unwinding roller 2, and the movable end of the film is passed through the pressing roller 11. According to the number of slit films and the mounting plate 37 located at a position close to the upper sliding frame 35, after determining the position of the transverse cutter 310, the mounting plate 37 is locked by the locking bolt, and then the screw 38 is rotated, the slider 39 moves downward, and the ball 313 is pressed. The first spring 312 is pressed against the top of the upper slide frame 35 and the second spring 313 is pressed against the bottom of the lower slide frame 36 to release the first spring 312. The second spring 312 is pressed against the top of the upper slide frame 35 and the second spring 313 to release the first spring 313. The first electric push rod 33 drives the moving block 32 to slide up and down along the moving groove 31 to adjust the position of the transverse cutter 310, so that the film can be easily passed from the unwinding roller 2 through the pressing roller 11. The second electric push rod 34 drives the transverse cutter 310 to rotate along the upper sliding frame 35 to adjust the cutting angle and rewind on different rewinding rollers 43. After the extended end of the fourth electric push rod 48 is inserted into the socket 49, the plug-in locking of the rewinding roller 43 and the drive motor 46 is completed. The drive motor 46 can be connected through the connecting frame and the first electric push rod 33. The fourth electric push rod 48 drives the connecting rod 45 and the winding roller 43 to rotate, so as to wind up the film, and transfers the winding roller 43 to the outside of the conveyor belt 42, so as to facilitate manual removal and replacement of the new winding roller 43. The third electric push rod 44 drives the side plate 41, the conveyor belt 42 and the winding roller 43 to move horizontally. On the one hand, it is convenient to remove the wound winding roller 43 and install a new winding roller 43. On the other hand, after the winding is completed, it moves slightly outward to tighten the film, so as to cooperate with the vertical cutter 52 to better cut the film.

[0036] The basic principles and main features of the present invention and the advantages of the present invention are shown and described above. For those skilled in the art, it is obvious that the present invention is not limited to the details of the above exemplary embodiments, and the present invention can be implemented in other specific forms without departing from the spirit or basic characteristics of the present invention.

[0037] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

Claims

1. A wrapping film slitting and rewinding machine, comprising a housing (1), characterized in that: An unwinding roller (2) is installed at the inlet end of the chassis (1), and two groups of clamping rollers (11) are installed on the inner wall at the middle position of the chassis (1). A slitting assembly (3) is provided at a position between the clamping roller (11) and the unwinding roller (2) inside the chassis (1). The slitting assembly (3) includes an upper sliding frame (35), a lower sliding frame (36) is fixed at the bottom of the upper sliding frame (35), and a plurality of groups of transverse cutters (310) are equidistantly provided on the surfaces of the upper sliding frame (35) and the lower sliding frame (36). A winding assembly (4) is provided at the outlet end of the chassis (1), and the winding assembly (4) includes side panels (41). Notches are provided on both sides of the outlet end of the chassis (1), and the side panels (41) slide along the notches on both sides of the chassis (1). The side panels (41) A conveyor belt (42) is installed on the inner surface of the chassis (1), a winding roller (43) is installed equidistantly between two groups of the conveyor belts (42), and the winding roller (43) is movably installed on the belt of the conveyor belt (42), two groups of movable frames (5) are provided inside the chassis (1) between the winding assembly (4) and the pressing roller (11), and the movable frames (5) are respectively fixed to the top and bottom of the chassis (1), and a vertical cutter (52) is installed between the two groups of movable frames (5), and the slitting assembly (3) also includes a movable groove (31), and the chassis (1) is provided with movable grooves (31) on both sides of the upper sliding frame (35) and the lower sliding frame (36), and a movable block (32) is slidably connected in the movable groove (31), and the chassis (1) is located in the movable groove (3 1) is fixed with a first electric push rod (33) at the top, and the extended end of the first electric push rod (33) is fixed to the moving block (32), the two sides of the upper sliding frame (35) are rotatably connected to the moving block (32) through bearings, the top of the transverse cutter (310) is fixed with a slider (39), the top of the upper sliding frame (35) is slidably connected with a mounting plate (37) at a position corresponding to the slider (39), and the mounting plate (37) is internally meshed with a screw rod (38), the bottom of the screw rod (38) is rotatably connected to the top of the slider (39) through a bearing, a locking bolt is inserted on one side of the mounting plate (37) located at the top of the upper sliding frame (35), and a storage groove (311) is opened inside the end of the sliding frame facing the upper sliding frame (35), and the storage groove (31 1) a ball (313) is provided inside, the ball (313) can be snap-fitted inside the upper sliding frame (35) and the lower sliding frame (36), and a first spring (312) is fixed between the ball (313) and the inner wall of the storage groove (311), a second electric push rod (34) is rotatably mounted on the inner surface of the moving block (32) via a rotating shaft, and the extended end of the second electric push rod (34) is rotatably connected to the bottom of the upper sliding frame (35) via the rotating shaft, the winding assembly (4) further comprises a slot (410), the slots (410) are provided at the center of the two ends of the winding roller (43), and a connecting rod (45) is slidably inserted in the slot (410), and a second spring (411) is fixed between one end of the connecting rod (45) and the inner wall of the slot (410),The belt of the conveyor belt (42) is provided with a perforation at a position corresponding to the connecting rod (45), and the winding roller (43) can be installed between the two groups of conveyor belts (42) by plugging through the connecting rod (45). A plurality of drive motors (46) are fixed on the outer surface of the side plate (41) corresponding to the conveyor belt (42) facing the vertical cutter (52), and the output end of the drive motor (46) passes through the side plate (41) and is fixed with a mounting frame (47), and the other end of the mounting frame (47) is fixed with a fourth electric push rod (48). A plug hole (49) is provided on the surface of the connecting rod (45), and the extended end of the fourth electric push rod (48) can be inserted into the plug hole (49). The output end of the drive motor (46) and the connecting rod (45) are in the same straight line. A third electric push rod (44) is fixed on the upper and lower sides of the outlet end of the chassis (1), and the extended end of the third electric push rod (44) is fixedly connected to the outer surface of the side plate (41).

2. The stretch film slitting and rewinding machine according to claim 1, characterized in that: Mounting positions are provided on both sides of the inlet end of the chassis (1), and mounting seats (21) are rotatably sleeved at both ends of the unwinding roller (2) via bearings, and the mounting seats (21) can be placed in the mounting positions at the inlet end of the chassis (1), and a wind hook lock (22) is provided on the outer surface of the mounting seat (21) on the same vertical line as the chassis (1).

3. The stretch film slitting and rewinding machine according to claim 1, characterized in that: A screw rod device (51) is installed inside the movable frame (5), and the upper and lower ends of the vertical cutter (52) are meshed and sleeved on the surface of the screw rod device (51).

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