Packaging film roll reloading device

Abstract

The utility model provides a packaging film roll reloading device which is characterized in that a horizontal sliding rail of a translation mechanism is arranged at the side end of a frame seat, a translation sliding block is fixed at the lower end of a sliding plate and connected with the translation sliding rail, a rack is arranged on the side face of the frame seat, and a translation motor is fixed on the sliding plate and meshed with the rack; vertical sliding rails of the lifting assembly are at least arranged at the front end and the rear end of the movable support, the lifting plate is connected with the vertical sliding rails through vertical sliding blocks, the screw motor is fixed to the movable support, a linkage sliding block of the screw motor is connected with the lifting plate, and the supporting plate is fixed to the front end of the lifting plate. According to the reloading platform, the translation mechanism and the lifting assembly are improved and optimized, so that the reloading platform can stably convey overweight roll materials with the gravity center located in front of the support, the equipment is simple in structure, programmed operation is achieved in the whole roll material reloading process, the loading and unloading speed of roll films is increased, the whole loading and unloading time is about 1 / 4 of the existing loading and unloading time, and the assembly precision is guaranteed.

Description

Technical Field

[0001] The utility model belongs to the technical field of packaging and conveying, and in particular relates to a packaging film roll changing device. Background Art

[0002] Aluminized film has the characteristics of both plastic film and metal. The function of aluminum plating on the surface of the film is to block light and prevent ultraviolet radiation, which not only prolongs the shelf life of the contents, but also improves the brightness of the film. It replaces aluminum foil to a certain extent. It is cheap, beautiful and has good barrier properties. Therefore, aluminized film is widely used in composite packaging. Vacuum aluminum film is made by heating and vaporizing high-purity aluminum wire on a ceramic evaporation boat under vacuum (below 4*10-4mbar) and attaching it to the surface of the substrate film. Vacuum aluminum film has the characteristics of high oxygen and water vapor barrier properties, high gloss, and light blocking, and is widely used in the packaging fields of food, medicine, daily necessities, etc.

[0003] In the production of packaging film, the coils that have not been aluminized need to be placed on the aluminizing machine, and the coils need to be taken out after the aluminizing is completed. Since the rolls weigh hundreds of kilograms or even several tons, the existing conventional operations all use gantry cranes or forklifts for transportation and assembly. Gantry cranes are used for loading and unloading. Since they use a hoisting method, the assembly process will shake, and the installation space of the roll film of the aluminizing machine is relatively small, which makes the operation difficult and dangerous, and it is easy to cause damage to the roll film and equipment, and it is also easy to cause injuries to the staff. Forklifts are used for transportation and installation. Since the roll film is cylindrical, it is not conducive to forklift operation. In addition, the aluminizing machine has a small space and the space of the production workshop is limited, which is even more unfavorable for forklift operation. Whether the gantry crane or forklift is used for the installation of the roll material, it takes 8-10 minutes, and the aluminizing time of the entire roll film is about 12 minutes, which consumes a lot of time and affects production efficiency. In addition, the cost of gantry cranes and forklifts is high, the operation is inconvenient, and the risk factor is high. Utility Model Content

[0004] The utility model provides a packaging film roll changing device, which can effectively solve the above problems.

[0005] The utility model is achieved in this way:

[0006] A packaging film roll changing device, comprising a frame seat, a translation mechanism and a vertical mechanism, the translation mechanism is arranged on both sides of the frame seat, and the vertical mechanism is arranged on the translation mechanism; the vertical mechanism is provided with a mobile frame, a lifting assembly and a bracket, the lifting assemblies are respectively arranged on both sides of the mobile frame, and the brackets are respectively arranged on the front sides of the lifting assemblies on both sides; the translation mechanism is provided with a translation slide rail, a translation slider, a sliding plate, a rack and a translation motor, the translation slide rail is arranged on both side ends of the frame seat, the translation slider is fixed to the lower end surface of the sliding plate and connected with the translation slide rail, the rack is fixed to the two side surfaces of the frame seat, the translation motor is fixed on the sliding plate through the meshing linkage of the gear and the rack, and the mobile frame is fixed on the sliding plate; the lifting assembly is provided with a lifting slide rail, a lifting plate, a lifting slide rail and a screw motor, the lifting slide rail is at least arranged at the front and rear ends of the mobile frame, the lifting plate is connected to the lifting slide rail through the lifting slide rail, the screw motor is fixed on the mobile frame between the lifting slide rails, the linkage slider of the screw motor is fixedly connected to the lifting plate, and the bracket is fixed to the front end of the lifting plate.

[0007] As a further improvement, a slide groove is provided on the frame seat on the opposite side of the rack, a track plate is provided on the movable frame or sliding plate on the corresponding side of the slide groove, a roller is provided on the track plate, and the roller is arranged in the slide groove; at least a track plate and a roller are provided away from the bracket end.

[0008] As a further improvement, a sliding assembly is provided between the screw motor and the movable frame, the sliding assembly is provided with a second lifting slide rail, a second sliding block is provided on the second lifting slide rail, the second lifting slide rail is vertically fixed on the movable frame, the second sliding block is fixed to the linkage slide of the screw motor and connected to the second lifting slide rail.

[0009] As a further improvement, the mobile frame is provided with a top frame, a side frame, a rectangular frame, a reinforcing rod and a sliding rail rod, the side frames are fixed on both sides of the top frame, the rectangular frame is arranged under the top frame and fixedly connected to the inner side of the side frame, the reinforcing rod connects the top frame and the rectangular frame, and the sliding rail rod is arranged in the side frame; the lifting rails are respectively arranged on the vertical rods of the side frames, and the second lifting rails are arranged on the sliding rail rods.

[0010] As a further improvement, the rear ends of the side frames on both sides of the mobile frame are provided with inclined rods, and the inclined rods are connected to the top frame and the side frames along the long ends.

[0011] As a further improvement, the lifting slide rails are arranged on the same side or different sides of the vertical rods of the side frame.

[0012] As a further improvement, a connecting plate is provided between the sliding plate and the bracket, and the connecting plate is connected to the sliding plates on both sides.

[0013] As a further improvement, a plurality of support frames are provided in the frame seat, and the support frames are provided with a base and a support plate. The support plates are provided at both side ends of the base, and a "V"-shaped placement groove is provided on the upper surface of the support plate.

[0014] As a further improvement, the bracket is "L"-shaped, and a "V"-shaped bracket is provided at the front end of the horizontal plate of the bracket.

[0015] As a further improvement, the inner angle of the "L"-shaped bracket is an arc-shaped chamfered angle, and the arc-shaped chamfered angle is an obtuse angle.

[0016] The beneficial effects of the utility model are as follows: the material changing platform can smoothly convey super heavy-weight coils with the center of gravity located in front of the bracket by improving and optimizing the translation mechanism and the lifting assembly. The equipment has a simple structure and the entire coil changing process is programmed, which not only improves the loading and unloading speed of the coil film, and the entire loading and unloading time is about 1 / 4 of the existing time, but also ensures the assembly accuracy. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the technical solution of the implementation mode of the utility model, the drawings required for use in the implementation mode will be briefly introduced below. It should be understood that the following drawings only show certain embodiments of the utility model and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other relevant drawings can be obtained based on these drawings without paying creative work.

[0018] Figure 1 It is a structural schematic diagram provided by an embodiment of a packaging film roll changing device of the utility model;

[0019] Figure 2 It is a schematic diagram provided by an embodiment of a packaging film roll changing device of the utility model;

[0020] Figure 3 It is a partial rear view provided by an embodiment of a packaging film roll changing device of the utility model;

[0021] Figure 4 It is a partial structural schematic diagram provided by an embodiment of a packaging film roll changing device of the utility model;

[0022] Figure 5 yes Figure 4 A is an enlarged schematic diagram;

[0023] Figure 6 yes Figure 4 A magnified schematic diagram of B;

[0024] Figure 7 yes Figure 4 A magnified schematic diagram of middle C;

[0025] Figure 8 It is a partial schematic diagram provided by an embodiment of a packaging film roll changing device of the utility model;

[0026] Fig. 9 It is a partial schematic diagram of a bracket provided by an embodiment of a packaging film roll changing device of the utility model;

[0027] Fig.10 This is a schematic diagram of bracket adjustment provided by an embodiment of a packaging film roll changing device of the utility model;

[0028] Fig.11 It is a partial top view of a bracket provided in an embodiment of a packaging film roll changing device of the utility model.

[0029] Reference numerals:

[0030] Frame seat 1; slide slot 11; translation mechanism 2; translation slide rail 21; translation slider 22; sliding plate 23; rack 24; translation motor 25; gear 251; track plate 26; roller 27; vertical mechanism 3; mobile frame 31; top frame 311; side frame 312; rectangular frame 313; reinforcing rod 314; slide rail rod 315; vertical rod 316; lifting assembly 32; lifting slide rail 321; lifting plate 322; lifting slider 323; Screw motor 324; linkage slider 325; bracket 33; "V"-shaped bracket 331; arc chamfer 332; mounting groove 333; adjustment block 334; slot 335; connecting hole 336; locking screw 337; countersunk slot 338; positioning switch 34; sliding assembly 35; second lifting rail 351; second slider 352; inclined rod 36; connecting plate 37; support frame 4; base 41; support plate 42; "V"-shaped placement groove 43. DETAILED DESCRIPTION

[0031] In order to make the purpose, technical scheme and advantages of the embodiments of the utility model clearer, the technical scheme in the embodiments of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiments of the utility model. Obviously, the described embodiments are part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model. Therefore, the following detailed description of the embodiments of the utility model provided in the drawings is not intended to limit the scope of the utility model for which protection is claimed, but merely represents selected embodiments of the utility model.

[0032] In the description of the present invention, the terms "first" and "second" are used for descriptive purposes only and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present invention, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0033] In the description of the present invention, the terms "upper", "middle", "side", "side", "upper side", "end" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0034] Reference Figure 1-11 As shown, a packaging film roll changing device comprises a frame seat 1, a translation mechanism 2 and a vertical mechanism 3, wherein the translation mechanism 2 is arranged on both sides of the frame seat 1, and the vertical mechanism 3 is arranged on the translation mechanism 2; the vertical mechanism 3 is provided with a moving frame 31, a lifting assembly 32 and a bracket 33, wherein the lifting assembly 32 is respectively arranged on both sides of the moving frame 31, and the bracket 33 is respectively arranged on the front side of the lifting assembly 32 on both sides; the translation mechanism 2 is provided with a translation rail 21, a translation slider 22, a sliding plate 23, a rack 24 and a translation motor 25, wherein the translation rail 21 is arranged on both side ends of the frame seat 1, the translation slider 22 is fixed to the lower end surface of the sliding plate 23 and connected to the translation rail 21, and the rack 24 is fixed to the lower end surface of the sliding plate 23 and connected to the translation rail 21. The translation motor 25 is fixed on the sliding plate 23 and is meshed with the rack 24 through the gear 251. The mobile frame 31 is fixed on the sliding plate 23. The lifting assembly 32 is provided with a lifting rail 321, a lifting plate 322, a lifting slider 323 and a screw motor 324. The lifting rail 321 is at least arranged at the front and rear ends of the mobile frame 31. The lifting plate 322 is connected to the lifting rail 321 through the lifting slider 323. The screw motor 324 is fixed on the mobile frame 31 between the lifting rails 321. The linkage lifting slider 325 of the screw motor 324 is fixedly connected to the lifting plate 322. The bracket 33 is fixed to the front end of the lifting plate 322.

[0035] Since the coil needs to be inserted into the aluminum plating machine, a forward bracket 33 is required to move the entire roll of film horizontally and vertically to accurately place it on the installation position of the coil mandrel. However, when the forward bracket 33 is loaded with several hundred kilograms or even several tons of coils, the center of gravity is in the front, and it is necessary to set translation sliders 22 at at least four corners of the translation mechanism 2, and set lifting sliders 323 at the four corners of the lifting assembly 32 to ensure the smooth horizontal and vertical movement. In addition, the length of the lifting plate 322 of the present application is not less than the length of the bracket 33, so that the center of gravity is as close to the moving frame 31 as possible to increase the stability of the movement.

[0036] Preferably, the front and rear ends of the lower end surface of the sliding plate 23 are respectively provided with double translation sliding blocks 22 and the translation sliding rails 21 for connection, so as to increase the bearing capacity and enhance the horizontal sliding effect.

[0037] In the description, the end of the bracket 33 is the front side, that is, the aluminum plating machine side is the front side.

[0038] The translation motor 25 and the screw motor 324 are both servo motors, and the servo motors are equipped with reducers.

[0039] The translation motor 25 and the screw motor 324 are both servo motors, and the servo motors are equipped with reducers.

[0040] The reason why the translation motor 25 is meshed with the gear 251 is that the walking accuracy can be improved and the use of a lead screw for driving can be avoided, because the lead screw is too long and has poor stability; the vertical direction is driven by a screw motor 324, which can play an anti-falling role.

[0041] Full roll loading and unloading process:

[0042] 1) After the aluminum plating machine is finished, the finished product at the unloading position of the aluminum plating machine is placed in the temporary storage position B of the coil by the material loading and unloading mobile platform.

[0043] 2) Then the material changing platform places the empty shaft core from the upper material position of the aluminizing machine onto the lower material position of the aluminizing machine.

[0044] 3) The material changing platform then transfers the incoming material from the coil temporary storage position A to the loading position of the aluminizing machine.

[0045] 4) In this way, all the loading and unloading actions of the aluminum plating machine are completed.

[0046] Half roll loading and unloading process:

[0047] 1) After the aluminum plating machine is finished, the material loading and unloading platform will put the finished product of the aluminum plating machine into the temporary storage position B of the coil.

[0048] 2) Then the material changing platform moves the spare mandrel on the mandrel temporary storage position to the unloading position of the aluminum plating machine.

[0049] 3) In this way, all the actions of loading and unloading half rolls of the aluminum plating machine are completed.

[0050] Furthermore, a slide groove 11 is provided on the frame seat 1 on the opposite side of the rack 24, and a track plate 26 is provided on the movable frame 31 or the sliding plate 23 on the corresponding side of the slide groove 11, and a roller 27 is provided on the track plate 26, and the roller 27 is arranged in the slide groove 11; at least the movable frame 31 or the sliding plate 23 away from the end of the bracket 33 is provided with a track plate 26 and a roller 27.

[0051] When the bracket 33 is loaded with several hundred kilograms or even several tons of coiled materials, the center of gravity is in front of the moving part, which will cause the rear end of the moving part to be lifted up and the front end to be pressed down. The translation rail 21 and the translation slider 22 will form a torque, which will increase the pressure and friction resistance, and easily cause wear, reduce stability and precision, and increase replacement costs. By adding the structure of the slide groove 11 and the roller 27, the rear end of the moving frame 31 and the sliding plate 23 is limited to be lifted up. Further, the track plate 26 and the roller 27 can be set on the moving frame 31 or the sliding plate 23 near the end of the bracket 33, which can limit the front end of the moving frame 31 and the sliding plate 23 from being pressed down, ensure the sliding effect between the translation rail 21 and the translation slider 22, and ensure the meshing between the gear 251 and the rack 24, thereby improving the service life and ensuring the movement precision.

[0052] A positioning switch 34 is provided between the guide rails and the sliders of the translation mechanism 2 and the vertical mechanism 3 .

[0053] The positioning switch 34 is a proximity switch, and a plurality of them are provided according to the requirements of the material changing positioning action.

[0054] Furthermore, a sliding assembly 35 is provided between the screw motor 324 and the moving frame 31, and the sliding assembly 35 is provided with a second lifting rail 351, and a second slider 352 is provided on the second lifting rail 351. The second lifting rail 351 is vertically fixed on the moving frame 31, and the second slider 352 is fixed to the linkage lifting slider 325 of the screw motor 324 and connected to the second lifting rail 351.

[0055] The vertical mechanism 3 ensures the stability of the lifting movement through three lifting slide rails 321.

[0056] Preferably, second lifting rails 351 are provided on both sides of the screw motor 324, and second sliders 352 are respectively arranged on the second lifting rails 351 to be connected with the linkage lifting sliders 325 of the screw motor 324; the screw of the screw motor 324 is arranged between the two second lifting rails 351, which plays a good protective role.

[0057] Furthermore, the movable frame 31 is provided with a top frame 311, a side frame 312, a rectangular frame 313, a reinforcing rod 314 and a sliding rail rod 315. The side frame 312 is fixed on both sides of the top frame 311. The rectangular frame 313 is arranged below the top frame 311 and fixedly connected to the inner side of the side frame 312. The reinforcing rod 314 connects the top frame 311 and the rectangular frame 313. The sliding rail rod 315 is arranged in the side frame 312. The lifting rails 321 are respectively arranged on the vertical rods 316 of the side frames 312, and the second lifting rails 351 are arranged on the sliding rail rod 315.

[0058] The top frame 311, the side frame 312, the rectangular frame 313, the reinforcing rod 314 and the slide rail rod 315 are welded and connected to each other using square tubes to ensure the stability of the entire frame. The lifting slide rail 321 is arranged on the vertical rod 316, and the second lifting slide rail 351 is arranged on the slide rail rod 315, so that the rail can better withstand the pressure of the slider and disperse the force on the entire frame.

[0059] Furthermore, the rear ends of the side frames 312 on both sides of the moving frame 31 are provided with inclined rods 36 , and the inclined rods 36 are connected to the top frame 311 and the side frames 312 along the long ends.

[0060] Through the action of the inclined tie rod 36, the center of gravity at the front can be moved backwards, and the lever force at the upper end can be transferred to the lower end, thereby ensuring the overall stability.

[0061] Furthermore, the lifting rails 321 are disposed on the same side or different sides of the vertical rods 316 of the side frame 312 .

[0062] The lifting slide rails 321 can be arranged on the front side or the rear side of the vertical rod 316 of the side frame 312; preferably, they are arranged on different sides of the vertical rod 316 of the side frame 312, that is, on the relative or opposite sides. If they are arranged on the relative sides, the vertical sliders will form a relative thrust to the lifting slide rails 321 on both sides, thereby transferring the torsional force to the vertical rod 316 and dispersing it to the entire moving frame 31; and if they are arranged on the opposite sides, the vertical sliders will form a clamping force on the lifting slide rails 321, which can also transfer the torsional force to the entire moving frame 31. More preferably, lifting rails 321 are provided on the front and rear sides of the vertical rod 316, and vertical sliders are arranged at the four corners of both sides, so that both sides can withstand torsional pressure; or a more preferred configuration is that the vertical slider at the upper end of the lifting plate 322 is arranged on the side of the vertical rod 316 away from the bracket 33, and the vertical slider at the lower end of the lifting plate 322 is arranged on the side of the vertical rod 316 near the bracket 33. Under the action of torsional force, the vertical sliders form pressure on the lifting rails 321, and transfer the pressure to the vertical rod 316 and diffuse it to the entire moving frame 31.

[0063] The second lifting rail 351 is arranged on the outer side of the slide rail rod 315; preferably, the second lifting rail 351 is arranged on the front side or the rear side of the slide rail rod 315, and more preferably, the second lifting rail 351 is arranged on the front and rear sides of the slide rail rod 315, and the screw of the screw motor 324 is arranged between the two second lifting rails 351, which provides good protection for the screw.

[0064] Furthermore, a connecting plate 37 is provided between the lifting plate 322 and the bracket 33 , and the connecting plate 37 is connected to the lifting plates 322 on both sides.

[0065] On the one hand, the connecting plate 37 can adjust the installation spacing of the bracket 33 without being affected by the spacing between the lifting plates 322 , and on the other hand, the lifting plates 322 and the bracket 33 on both sides are interconnected to form a whole, and the structure is more stable.

[0066] Furthermore, a plurality of support frames 4 are provided in the frame seat 1 . The support frames 4 are provided with a base 41 and a support plate 42 . The support plates 42 are provided at both side ends of the base 41 . A “V”-shaped placement groove 43 is provided on the upper end surface of the support plate 42 .

[0067] The support plate 42 can ensure that the core shafts of the film roll are at the same height without being affected by the size of the film roll itself, thereby simplifying the material replacement operation. The "V"-shaped placement groove 43 can use core shafts of different sizes.

[0068] Furthermore, the bracket 33 is “L”-shaped, and a “V”-shaped bracket groove 331 is provided at the front end of the horizontal plate of the bracket 33 .

[0069] The vertical side end of the "L"-shaped bracket 33 is fixedly connected to the lifting plate 322 or the connecting plate 37 to increase the connection area and improve the connection strength; the horizontal side end is located at the lower end side of the lifting plate 322, thereby lowering the overall center of gravity, which is conducive to maintaining the stability of the coil conveying.

[0070] Furthermore, a circular arc-shaped mounting groove 333 and an adjusting block 334 are provided at the front end of the horizontal plate of the bracket 33. The mounting groove 333 is provided with a slot 335 along the inner wall of the circular arc. Two adjusting blocks 334 are provided. The adjusting block 334 is in a "D" shape. The arc surface of the "D"-shaped adjusting block 334 matches the circular arc shape of the mounting groove 333, and the two "D"-shaped adjusting blocks 334 form a "V"-shaped bracket 331 in the mounting groove 333. The adjusting block 334 is provided with a penetrating connecting hole 336, and the extension line of the connecting hole 336 points to the center of the circular arc. A locking screw 337 is provided in the connecting hole 336. One end of the locking screw 337 is inserted into the slot 335 and inserted into the connecting hole 336, and the other end is inserted into the opposite connecting hole 336 to achieve connection. The connecting hole 336 on the surface of the adjusting block 334 is provided with a countersunk groove 338.

[0071] Furthermore, the inner angle of the “L”-shaped bracket 33 is an arc-shaped chamfer 332 , and the arc-shaped chamfer 332 is an obtuse angle.

[0072] The arc chamfer 332 is set to an obtuse angle to avoid tearing. The arc chamfer 332 is located at 1 / 3-1 / 2 of the end of the connecting plate 37, and preferably at 2 / 5. This can not only ensure the supporting strength of the "L"-shaped bracket 33, but also make the center of gravity as close to the mobile frame 31 as possible under load conditions to ensure stability.

[0073] The above description is only the preferred implementation of the utility model, and is not intended to limit the utility model. For those skilled in the art, the utility model can have various modifications and changes. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model shall be included in the protection scope of the utility model.

Claims

1. A packaging film roll changing device, characterized in that: The invention comprises a frame seat, a translation mechanism and a vertical mechanism, wherein the translation mechanism is arranged on both sides of the frame seat, and the vertical mechanism is arranged on the translation mechanism; the vertical mechanism is provided with a mobile frame, a lifting assembly and a bracket, the lifting assemblies are respectively arranged on both sides of the mobile frame, and the brackets are respectively arranged on the front sides of the lifting assemblies on both sides; the translation mechanism is provided with a translation slide rail, a translation slider, a sliding plate, a rack and a translation motor, the translation slide rail is arranged on both side ends of the frame seat, the translation slider is fixed to the lower end surface of the sliding plate and connected with the translation slide rail, the rack is fixed to the two side surfaces of the frame seat, the translation motor is fixed to the sliding plate through the meshing linkage of the gear and the rack, and the mobile frame is fixed on the sliding plate; the lifting assembly is provided with a lifting slide rail, a lifting plate, a lifting slide rail and a screw motor, the lifting slide rail is at least arranged at the front and rear ends of the mobile frame, the lifting plate is connected to the lifting slide rail through the lifting slide rail, the screw motor is fixed on the mobile frame between the lifting slide rails, the linkage slider of the screw motor is fixedly connected with the lifting plate, and the bracket is fixed to the front end of the lifting plate.

2. A packaging film roll changing device according to claim 1, characterized in that: A slide groove is provided on the frame seat on the opposite side of the rack, a track plate is provided on the movable frame or sliding plate on the corresponding side of the slide groove, a roller is provided on the track plate, and the roller is arranged in the slide groove; at least a track plate and a roller are provided away from the bracket end.

3. The packaging film roll changing device according to claim 1, characterized in that: A sliding assembly is provided between the screw motor and the moving frame, the sliding assembly is provided with a second lifting rail, the second lifting rail is provided with a second slider, the second lifting rail is vertically fixed on the moving frame, the second slider is fixed to the linkage slider of the screw motor and connected to the second lifting rail.

4. A packaging film roll changing device according to claim 1, 2 or 3, characterized in that: The mobile frame is provided with a top frame, a side frame, a rectangular frame, a reinforcing rod and a sliding rail rod. The side frames are fixed on both sides of the top frame. The rectangular frame is arranged below the top frame and fixedly connected to the inner side of the side frame. The reinforcing rod connects the top frame and the rectangular frame. The sliding rail rod is arranged in the side frame. The lifting rails are respectively arranged on the vertical rods of the side frames, and the second lifting rail is arranged on the sliding rail rod.

5. A packaging film roll changing device according to claim 4, characterized in that: The rear ends of the side frames on both sides of the moving frame are provided with inclined rods, and the inclined rods are connected with the top frame and the side frames along the long ends.

6. The packaging film roll changing device according to claim 1, characterized in that: The lifting slide rails are arranged on the same side or different sides of the vertical rods of the side frame.

7. The packaging film roll changing device according to claim 1, characterized in that: A connecting plate is provided between the sliding plate and the bracket, and the connecting plate is connected to the sliding plates on both sides.

8. The packaging film roll changing device according to claim 1, characterized in that: A plurality of support frames are arranged in the frame seat, and the support frames are provided with a base and a support plate. The support plates are arranged at both side ends of the base, and a "V"-shaped placement groove is arranged on the upper surface of the support plate.

9. The packaging film roll changing device according to claim 1, characterized in that: The bracket is in an "L" shape, and a "V"-shaped bracket is provided at the front end of the horizontal plate of the bracket.

10. A packaging film roll changing device according to claim 9, characterized in that: The inner angle of the "L"-shaped bracket is an arc-shaped chamfer, and the arc-shaped chamfer is an obtuse angle.

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