Accurate cutting device for aluminum plastic film

Abstract

The utility model relates to the technical field of battery cells, and discloses an aluminum-plastic film accurate cutting device which is provided with an accurate cutting mechanism for accurately cutting aluminum-plastic films, and further comprises a material taking mechanism for sucking a plurality of aluminum-plastic films, and a distance changing mechanism for enlarging and adjusting the distance between the plurality of aluminum-plastic films, the first conveying mechanism is used for conveying the multiple pitch-changed aluminum plastic films to the precise cutting mechanism; the sending-out mechanism is used for sending out the precise-cut aluminum plastic films; the accurate cutting mechanism is responsible for accurately cutting the aluminum plastic film so as to meet the requirement of fine processing; the material taking mechanism can grab a plurality of aluminum plastic films, so that batch processing can be realized, and the working efficiency is improved; the distance changing mechanism is used for adjusting the distance between the multiple aluminum plastic films, and it can be guaranteed that the distance between the films is suitable for cutting operation before the aluminum plastic films are fed into the fine cutting mechanism. The first conveying mechanism conveys the aluminum plastic film subjected to variable-pitch adjustment to the fine cutting mechanism, so that the continuity of the whole operation process is ensured; and the discharging mechanism is used for discharging the accurately cut aluminum plastic film, so that subsequent processing or packaging is facilitated.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of battery cell, and concretely relates to an aluminum-plastic film precision cutting device. BACKGROUND

[0002] The aluminum-plastic film precision cutting device is a device for accurately cutting and processing aluminum-plastic film. As a material commonly used for battery packaging or other special packaging, the aluminum-plastic film requires high accuracy and stability in the cutting and processing process.

[0003] The current aluminum-plastic film precision cutting device has the following problems: the number of aluminum-plastic films that can be cut simultaneously is small, resulting in slow efficiency; or when cutting multiple aluminum-plastic films simultaneously, the cutting accuracy may be affected due to the close distance between the films.

[0004] The technical problem to be solved by the utility model is to provide an aluminum-plastic film precision cutting device that can simultaneously cut multiple aluminum-plastic films with high accuracy. SUMMARY

[0005] The technical problem to be solved by the utility model is to provide an aluminum-plastic film precision cutting device that can simultaneously cut multiple aluminum-plastic films with high accuracy. The precision cutting mechanism is responsible for accurately cutting the aluminum-plastic film to meet the requirements of fine processing. The material taking mechanism can grasp multiple aluminum-plastic films, enabling batch processing and improving work efficiency. The distance adjusting mechanism is used to adjust the distance between the multiple aluminum-plastic films to ensure that the distance between the films is suitable for cutting operation before being sent to the precision cutting mechanism. The first conveying mechanism conveys the aluminum-plastic films adjusted by the distance adjusting mechanism to the precision cutting mechanism, ensuring the continuity of the entire operation process. The delivery mechanism delivers the aluminum-plastic films after precision cutting, facilitating subsequent processing or packaging.

[0006] The aluminum-plastic film precision cutting device has a precision cutting mechanism for cutting aluminum-plastic film, and further includes a material taking mechanism for taking multiple aluminum-plastic films, a distance adjusting mechanism for adjusting the distance between the multiple aluminum-plastic films, a first conveying mechanism for conveying the multiple aluminum-plastic films adjusted by the distance adjusting mechanism to the precision cutting mechanism, and a delivery mechanism for delivering the aluminum-plastic films after precision cutting.

[0007] Preferably, the precision cutting mechanism includes a precision cutting stand arranged horizontally, and the top of the precision cutting stand is spaced apart and provided with a plurality of precision cutting seats for bearing the aluminum-plastic film. The two sides of each precision cutting seat are provided with a cutter assembly. The cutter assembly includes a second cutter mounting plate arranged horizontally, and the two sides of the second cutter mounting plate are vertically provided with a third cutter. A second cutter cylinder is arranged to drive the second cutter mounting plate to move up and down. The second cutter mounting plate moves up and down driven by the second cutter cylinder, thereby driving the third cutter to contact the precision cutting seat, and then cutting the aluminum-plastic film on the precision cutting seat.

[0008] Preferably, the material taking mechanism comprises a third linear module arranged horizontally; a third slider, a fourth slider and a fifth slider are driven on the third linear module; a material taking support that moves back and forth synchronously with the third slider is arranged on the third slider; first guide rails and second guide rails are arranged at the bottom of the material taking support at intervals; a first material taking mounting plate and a second material taking mounting plate that slide with the first guide rails and the second guide rails respectively are arranged; a first material taking cylinder and a second material taking cylinder that drive the first material taking mounting plate and the second material taking mounting plate to slide back and forth respectively are arranged; and the bottom of the first material taking mounting plate and the second material taking mounting plate is provided with a plurality of third adsorption plates in L-shaped cross section.

[0009] Preferably, the distance changing mechanism comprises a second distance changing rack arranged horizontally; two sixth slide rails that slide with the second distance changing rack are arranged at the bottom of the second distance changing rack; a fourth screw threadedly connected with the second distance changing rack is arranged; a fourth driving motor that drives the fourth screw to rotate forward and backward is arranged; the fourth driving motor drives the fourth screw to rotate forward and backward, so that the second distance changing rack moves back and forth; a third guide rail is arranged horizontally on the second distance changing rack; a plurality of distance changing sliders that slide with the third guide rail are arranged on the third guide rail; a fifth screw threadedly connected with the distance changing sliders is arranged; a distance changing motor that drives the fifth screw to rotate forward and backward is arranged; the fourth driving motor drives the distance changing sliders to move below the material taking mechanism, the material taking mechanism prevents the aluminum plastic film on the distance changing sliders, and then the distance changing motor changes the distance between the aluminum plastic films.

[0010] Preferably, the first conveying mechanism comprises a conveying rack connected with the fourth slider; two conveying cylinders with piston rods arranged downward are arranged at the bottom of the conveying rack at intervals; conveying supports are connected with the piston rods of the conveying cylinders; and a plurality of fourth adsorption plates are arranged at the bottom of the conveying supports; the third linear module drives the fourth slider to move, so as to drive the fourth adsorption plates to adsorb the aluminum plastic film whose distance has been changed by the distance changing mechanism, and then convey the aluminum plastic film to the fine cutting mechanism for fine cutting.

[0011] Preferably, the sending-out mechanism comprises a sending-out rack connected with the fifth slider; fourth lifting cylinders are arranged at both sides of the sending-out rack; vertical first mounting supports are connected with the piston rods of the fourth lifting cylinders; second rotating cylinders are arranged at the bottom of the first mounting supports; second mounting supports are arranged horizontally at the bottom of the second rotating cylinders; and a plurality of fifth adsorption plates are arranged at the bottom of the second mounting supports at intervals; the third linear module drives the fifth slider to move, so as to drive the fifth adsorption plates to send out the aluminum plastic film after fine cutting.

[0012] Compared with the prior art, the aluminium plastic film precision cutting device has the beneficial effects that: the precision cutting mechanism is responsible for precise cutting of the aluminium plastic film to meet the requirement of fine processing; the material taking mechanism can grab multiple aluminium plastic films, batch processing can be realized, and work efficiency is improved; the pitch adjusting mechanism is used for adjusting the pitch of the multiple aluminium plastic films, so that the distance between the films is suitable for cutting operation before being sent into the precision cutting mechanism; the first conveying mechanism conveys the aluminium plastic films with adjusted pitch to the precision cutting mechanism, ensuring the coherence of the whole operation process; and the feeding mechanism feeds out the aluminium plastic films after precision cutting, facilitating subsequent processing or packaging.

[0013] The additional aspects and advantages of the present application will be partially given in the following description, partially become obvious from the following description, or be understood through the practice of the present application. BRIEF DESCRIPTION OF DRAWINGS

[0014] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the following will briefly introduce the drawings needed to be used in the embodiment or prior art description. Obviously, the drawings in the following description are only some embodiments of the present application, and for those skilled in the art, other drawings can also be obtained from these drawings without creative labor.

[0015] Figure 1 is a schematic diagram of the overall structure of the present application.

[0016] Figure 2 is another angle structure schematic diagram of the present application Figure 1 .

[0017] Figure 3 is a schematic diagram of the first mounting bracket structure of the present application.

[0018] Figure 4 is a schematic diagram of the material taking bracket structure of the present application.

[0019] Figure 5 is a schematic diagram of the pitch adjusting slider structure of the present application.

[0020] Figure 6 is a schematic diagram of the third cutter structure of the present application.

[0021] In the figure: C1, fine cutting stand; C2, fine cutting bearing seat; C3, second cutter mounting plate; C4, third cutter; C5, second cutter cylinder; C6, third linear module; C7, third sliding block; C8, fourth sliding block; C9, fifth sliding block; C10, material taking support; C11, first guide rail; C12, second guide rail; C13, first material taking mounting plate; C14, second material taking mounting plate; C15, first material taking cylinder; C16, second material taking cylinder; C17, third adsorption plate; C18, second variable distance machine frame; C19, sixth sliding rail; C20, fourth screw rod; C21, fourth driving motor; C22, third guide rail; C23, variable distance sliding block; C24, fifth screw rod; C25, variable distance motor; C26, conveying frame; C27, conveying cylinder; C28, conveying support; C29, fourth adsorption plate; C30, sending out frame; C31, fourth lifting cylinder; C32, first mounting support; C33, second rotary cylinder; C34, second mounting support; C35, fifth adsorption plate. DETAILED DESCRIPTION

[0022] The technical solutions in the embodiments of the present application will be described clearly and completely below. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative work fall within the protection scope of the present application.

[0023] It should be noted that the terms "first", "second" and the like in the present application are used to distinguish similar objects, and do not have to be used to describe a specific order or sequence. It should be understood that the data used in this way can be interchanged under appropriate circumstances, so that the embodiments of the present disclosure described herein can be implemented in an order other than those illustrated or described herein. The implementation described in the following exemplary embodiments does not represent all the implementations consistent with the present disclosure.

[0024] Please refer to Figures 1-6 In the embodiments of the present application, the aluminum plastic film fine cutting device has a fine cutting mechanism for fine cutting of aluminum plastic film; further comprising: a material taking mechanism for taking a plurality of aluminum plastic films, a variable distance mechanism for adjusting the distance between a plurality of aluminum plastic films, a first conveying mechanism for conveying a plurality of variable distance aluminum plastic films to the fine cutting mechanism, and a sending out mechanism for sending out the fine cut aluminum plastic film.

[0025] Specifically, the fine cutting mechanism is responsible for precise cutting of the aluminum plastic film to meet the requirements of fine processing; the material taking mechanism can grab multiple aluminum plastic films, enabling batch processing and improving work efficiency; the distance changing mechanism is used to adjust the distance of multiple aluminum plastic films, ensuring that the distance between the films is suitable for cutting operation before being sent to the fine cutting mechanism; the first conveying mechanism conveys the aluminum plastic film adjusted by the distance changing mechanism to the fine cutting mechanism, ensuring the continuity of the entire operation process; the delivery mechanism delivers the aluminum plastic film after fine cutting, facilitating subsequent processing or packaging.

[0026] Further, the fine cutting mechanism includes a fine cutting stand C1 arranged horizontally; the top of the fine cutting stand C1 is spaced apart and provided with a plurality of fine cutting bearing seats C2 for bearing the aluminum plastic film; both sides of the fine cutting bearing seat C2 are provided with a cutter assembly; and the cutter assembly includes a second cutter mounting plate C3 arranged horizontally, both sides of the second cutter mounting plate C3 are vertically provided with a third cutter C4; and a second cutter cylinder C5 is arranged to drive the second cutter mounting plate C3 to move up and down; the second cutter cylinder C5 drives the second cutter mounting plate C3 to move up and down, thereby driving the third cutter C4 to contact the fine cutting bearing seat C2, and then cutting the aluminum plastic film on the fine cutting bearing seat C2.

[0027] Specifically, the fine cutting stand C1 is arranged horizontally on the main frame of the device and is the support structure of the fine cutting mechanism; the fine cutting bearing seat C2 is installed at the top of the fine cutting stand C1 and is arranged at a certain interval; the main function of the fine cutting bearing seat C2 is to bear the aluminum plastic film to be cut, ensuring that each aluminum plastic film is fixed and cut at the correct position; the second cutter mounting plate C3 is arranged horizontally on both sides of the fine cutting stand C1 and is used to install and support the cutting blade; the mounting plate enables the movement of the cutting tool to be accurately controlled; the third cutter C4 is vertically installed on both sides of the second cutter mounting plate C3 and is the blade that actually performs the cutting operation; the third cutter C4 contacts the fine cutting bearing seat C2 in up and down movement, thereby cutting the aluminum plastic film thereon; the second cutter cylinder C5 drives the second cutter mounting plate C3 to move up and down; when the cylinder is started, the second cutter mounting plate C3 drives the third cutter C4 to move downward, so that the third cutter C4 contacts the aluminum plastic film and completes the cutting; when the cylinder stops or resets, the cutter mounting plate resets, facilitating the next cutting operation.

[0028] Further, the material taking mechanism comprises a third linear module C6 arranged horizontally; a third sliding block C7, a fourth sliding block C8 and a fifth sliding block C9 are driven on the third linear module C6; a material taking support C10 that moves back and forth synchronously with the third sliding block C7 is arranged on the third sliding block C7; a first guide rail C11 and a second guide rail C12 are arranged at the bottom of the material taking support C10 at intervals; a first material taking mounting plate C13 and a second material taking mounting plate C14 that slide with the first guide rail C11 and the second guide rail C12 are arranged respectively; a first material taking cylinder C15 and a second material taking cylinder C16 that drive the first material taking mounting plate C13 and the second material taking mounting plate C14 to slide back and forth are arranged respectively; and a plurality of third adsorption plates C17 with L-shaped cross sections are arranged at the bottom of the first material taking mounting plate C13 and the second material taking mounting plate C14.

[0029] Specifically, the third linear module C6 is horizontally mounted on the overall structure of the device and is the core track system of the whole material taking mechanism; the third linear module C6 slides on the third linear module C6 and can move on the horizontal shaft; the material taking support C10 is mounted on the third sliding block C7 and moves synchronously with the reciprocating movement of the third sliding block C7; the material taking support C10 mainly acts as a carrier for mounting and fixing subsequent guide rails and material taking assemblies; the first guide rail C11 and the second guide rail C12 are arranged at the bottom of the material taking support C10 and are used for mounting the first material taking mounting plate C13 and the second material taking mounting plate C14 respectively, so as to facilitate the sliding of the mounting plates on the guide rails; the first material taking mounting plate C13 and the second material taking mounting plate C14 are mounted on the first guide rail C11 and the second guide rail C12 and have independent sliding functions, can slide back and forth respectively through respective material taking cylinders, and can realize more flexible material taking operations; the first material taking cylinder C15 and the second material taking cylinder C16 are connected with the first material taking mounting plate C13 and the second material taking mounting plate C14 respectively and control the reciprocating sliding of the first material taking mounting plate C13 and the second material taking mounting plate C14; through the control of the cylinders, the material taking mounting plates can quickly and efficiently complete positioning and material taking actions; the third adsorption plates C17 are mounted at the bottom of the first material taking mounting plate C13 and the second material taking mounting plate C14 and have L-shaped cross sections; the design of the adsorption plates enables the material taking plates to accurately contact the surface of the aluminum plastic film and complete adsorption actions, thereby ensuring the stability of the aluminum plastic film during material taking and transportation.

[0030] Further, the distance changing mechanism comprises a horizontally arranged second distance changing frame C18; the bottom of the second distance changing frame C18 is provided with two sixth sliding rails C19 in sliding fit with the second distance changing frame C18; a fourth screw rod C20 is provided in threaded connection with the second distance changing frame C18; a fourth driving motor C21 is arranged to drive the fourth screw rod C20 to rotate in forward and reverse directions; the fourth driving motor C21 drives the fourth screw rod C20 to rotate in forward and reverse directions, so that the second distance changing frame C18 reciprocates; a third guide rail C22 is horizontally arranged on the second distance changing frame C18; a plurality of distance changing sliding blocks C23 are arranged in sliding fit with the third guide rail C22; a fifth screw rod C24 is arranged in threaded connection with the distance changing sliding blocks C23; and a distance changing motor C25 is arranged to drive the fifth screw rod C24 to rotate in forward and reverse directions; the fourth driving motor C21 drives the distance changing sliding blocks C23 to move below the material taking mechanism, the material taking mechanism prevents the aluminum plastic film on the distance changing sliding blocks C23, and then the distance changing motor C25 changes the distance between the aluminum plastic films.

[0031] Specifically, the second distance changing frame C18 is a core support structure of the distance changing mechanism, and is used for fixing and bearing other components of the distance changing mechanism; the sixth sliding rail C19 is located at the bottom of the second distance changing frame C18, and is in sliding fit with the second distance changing frame C18, so as to allow the second distance changing frame C18 to move in the horizontal direction; the fourth screw rod C20 is in threaded connection with the second distance changing frame C18; by rotating the fourth screw rod C20, the screw rod drives the distance changing frame to move horizontally along the sixth sliding rail C19; the fourth driving motor C21 drives the fourth screw rod C20 to rotate in forward and reverse directions, so that the second distance changing frame C18 reciprocates; the second distance changing frame C18 is accurately positioned along the horizontal shaft, so as to adjust the distance of the aluminum plastic film; the third guide rail C22 is horizontally arranged on the second distance changing frame C18, and is used for guiding the sliding of the distance changing sliding block C23; the distance changing sliding block C23 is arranged on the third guide rail C22, and can slide on the guide rail, so as to flexibly adjust the distance of the aluminum plastic film as required; the fifth screw rod C24 is in threaded connection with the distance changing sliding block C23; when the fifth screw rod C24 rotates, the distance changing sliding block C23 is driven to move along the third guide rail C22; the distance changing motor C25 drives the fifth screw rod C24 to rotate in forward and reverse directions, so as to control the position adjustment of the distance changing sliding block C23, and change the distance of the aluminum plastic film.

[0032] Further, the first conveying mechanism comprises a conveying frame C26 connected with the fourth sliding block C8; two conveying cylinders C27 are arranged at the bottom of the conveying frame C26, and the piston rods of the conveying cylinders C27 are arranged downward; the piston rods of the conveying cylinders C27 are connected with conveying supports C28; and the bottom of each conveying support C28 is provided with a plurality of fourth adsorption plates C29; the third linear module C6 drives the fourth sliding block C8 to move, so as to drive the fourth adsorption plates C29 to adsorb the aluminum plastic film after the distance changing by the distance changing mechanism, and then convey the aluminum plastic film to the fine cutting mechanism for fine cutting.

[0033] Specifically, the conveying frame C26 is connected with the fourth sliding block C8 and is installed on the third linear module C6; the conveying frame C26 moves along the horizontal axis through the linear module, conveying the aluminum-plastic film from the variable distance mechanism to the precision cutting mechanism; the conveying cylinders C27 are arranged at intervals at the bottom of the conveying frame C26, and the piston rods of the cylinders are downward; the piston rod of each conveying cylinder C27 is connected with a conveying support C28; through the lifting action of the cylinder, the precise adsorption and release of the aluminum-plastic film are realized; the conveying support C28 is connected at the bottom of the piston rod of the conveying cylinder C27 and is lifted and lowered with the up-and-down action of the cylinder; its main function is to support and position the adsorption device that adsorbs the aluminum-plastic film; the fourth adsorption plate C29 is installed at the bottom of the conveying support C28 and has an adsorption function, and can fix the aluminum-plastic film through an adsorption mode such as negative pressure.

[0034] Further, the feeding mechanism includes a feeding frame C30 connected with the fifth sliding block C9; both sides of the feeding frame C30 are provided with fourth lifting cylinders C31; the piston rods of the fourth lifting cylinders C31 are each connected with a vertically arranged first mounting support C32; the bottom of the first mounting support C32 is provided with a second rotary cylinder C33; the bottom of the second rotary cylinder C33 is horizontally provided with a second mounting support C34; and the bottom of the second mounting support C34 is provided with a plurality of fifth adsorption plates C35 at intervals; the fifth sliding block C9 is moved through the third linear module C6, thereby driving the fifth adsorption plate C35 to feed the precision-cut aluminum-plastic film.

[0035] Specifically, the feeding frame C30 is connected with the fifth sliding block C9 and is installed on the third linear module C6; the feeding frame C30 moves horizontally with the movement of the fifth sliding block C9, for positioning the feeding mechanism above the precision-cut aluminum-plastic film; the fourth lifting cylinders C31 are installed on both sides of the feeding frame C30; the piston rods of the cylinders are vertically arranged and are connected with the first mounting support C32; through the extension control of the cylinder, the first mounting support C32 can be lifted and lowered, facilitating the adsorption or release of the aluminum-plastic film; the first mounting support C32 is vertically installed on the piston rod of the fourth lifting cylinder C31 and controls the up-and-down movement of the whole body with the lifting action of the cylinder, providing support for the feeding operation; the second rotary cylinder C33 is installed at the bottom of the first mounting support C32 and functions to control the rotation of the second mounting support C34, so as to adjust the angle when adsorbing and placing the aluminum-plastic film; the second mounting support C34 is horizontally installed at the bottom of the second rotary cylinder C33 and serves as a fixing support of the fifth adsorption plate C35; the fifth adsorption plate C35 is installed at the bottom of the second mounting support C34 and is arranged at intervals; the adsorption function of the fifth adsorption plate C35 is used to adsorb the precision-cut aluminum-plastic film, so as to ensure the stability of the aluminum-plastic film during transportation and placement.

[0036] It is apparent for a person skilled in the art that the present application is not limited to the details of the above-described exemplary embodiments, but that it can be implemented in other concrete forms without departing from the spirit or the essential characteristics of the present application. Therefore, the embodiments should be considered as exemplary only, and not limiting, the scope of the present application being defined by the appended claims rather than by the above description, and all changes coming within the meaning and range of equivalency of the claims are therefore intended to be embraced therein.

Claims

1. An aluminum-plastic film precision cutting device, comprising a precision cutting mechanism for precision cutting aluminum-plastic film, characterized in that, Also include: The taking mechanism for taking a plurality of aluminum plastic film, the pitch changing mechanism for changing the pitch of a plurality of aluminum plastic film, the first conveying mechanism for conveying a plurality of aluminum plastic film after changing the pitch to the fine cutting mechanism, and the delivery mechanism for delivering the fine cutting aluminum plastic film.

2. The aluminum plastic film precise cutting device according to claim 1, characterized in that, The fine cutting mechanism comprises a horizontally arranged fine cutting stand (C1); the top of the fine cutting stand (C1) is provided with a plurality of fine cutting bearing seats (C2) for bearing aluminum plastic film; the two sides of the fine cutting bearing seat (C2) are provided with cutter assemblies; the cutter assembly comprises a horizontally arranged second cutter mounting plate (C3), the two sides of the second cutter mounting plate (C3) are vertically provided with third cutters (C4); a second cutter cylinder (C5) is arranged to drive the second cutter mounting plate (C3) to move up and down; the second cutter cylinder (C5) drives the second cutter mounting plate (C3) to move up and down, thereby driving the third cutter (C4) to contact the fine cutting bearing seat (C2), and then cutting the aluminum plastic film on the fine cutting bearing seat (C2).

3. The aluminum plastic film precise cutting device according to claim 2, characterized in that, The taking mechanism comprises a horizontally arranged third linear module (C6); the third linear module (C6) is driven by a third sliding block (C7), a fourth sliding block (C8) and a fifth sliding block (C9); the third sliding block (C7) is provided with a taking bracket (C10) which moves synchronously and reciprocally; the bottom of the taking bracket (C10) is provided with a first guide rail (C11) and a second guide rail (C12); the first guide rail (C11) and the second guide rail (C12) are respectively provided with a first taking mounting plate (C13) and a second taking mounting plate (C14) which slide with the first guide rail (C11) and the second guide rail (C12); the first taking mounting plate (C13) and the second taking mounting plate (C14) are respectively provided with a first taking cylinder (C15) and a second taking cylinder (C16) which drive the first taking mounting plate (C13) and the second taking mounting plate (C14) to slide reciprocally; the bottom of the first taking mounting plate (C13) and the second taking mounting plate (C14) is provided with a plurality of third suction plates (C17) which are L-shaped in cross section.

4. The aluminum plastic film precise cutting device according to claim 3, characterized in that, The distance changing mechanism comprises a horizontally arranged second distance changing frame (C18), the bottom of the second distance changing frame (C18) is provided with two sixth sliding rails (C19) in sliding fit with the second distance changing frame (C18), a fourth screw rod (C20) is in threaded connection with the second distance changing frame (C18), a fourth driving motor (C21) is arranged to drive the fourth screw rod (C20) to rotate in forward and reverse directions, the fourth driving motor (C21) drives the fourth screw rod (C20) to rotate in forward and reverse directions, so that the second distance changing frame (C18) reciprocates, a third guide rail (C22) is horizontally arranged on the second distance changing frame (C18), a plurality of distance changing sliding blocks (C23) are arranged on the third guide rail (C22) in sliding fit with the third guide rail (C22), a fifth screw rod (C24) is in threaded connection with the distance changing sliding blocks (C23), and a distance changing motor (C25) is arranged to drive the fifth screw rod (C24) to rotate in forward and reverse directions, the fourth driving motor (C21) drives the distance changing sliding blocks (C23) to move to the lower side of the material taking mechanism, the material taking mechanism prevents the aluminum plastic film on the distance changing sliding blocks (C23), and the distance changing motor (C25) changes the distance between the aluminum plastic films.

5. The aluminum-plastic film precise cutting device according to claim 4, characterized in that, The first conveying mechanism comprises a conveying frame (C26) connected with the fourth sliding block (C8), the bottom of the conveying frame (C26) is provided with two conveying cylinders (C27) with piston rods arranged downward at intervals, the piston rods of the conveying cylinders (C27) are connected with conveying supports (C28), and the bottom of each conveying support (C28) is provided with a plurality of fourth adsorption plates (C29), the third linear module (C6) drives the fourth sliding block (C8) to move, so as to drive the fourth adsorption plates (C29) to adsorb the aluminum plastic film after distance changing by the distance changing mechanism, and then convey the aluminum plastic film to the fine cutting mechanism for fine cutting.

6. The aluminum plastic film precise cutting device according to claim 3, characterized in that, The feeding mechanism comprises a feeding frame (C30) connected with the fifth sliding block (C9), both sides of the feeding frame (C30) are provided with fourth lifting cylinders (C31), the piston rods of the fourth lifting cylinders (C31) are connected with vertically arranged first mounting supports (C32), the bottom of each first mounting support (C32) is provided with a second rotary cylinder (C33), the bottom of the second rotary cylinder (C33) is horizontally provided with a second mounting support (C34), and the bottom of the second mounting support (C34) is provided with a plurality of fifth adsorption plates (C35) at intervals, the third linear module (C6) drives the fifth sliding block (C9) to move, so as to drive the fifth adsorption plates (C35) to feed the fine-cut aluminum plastic film.

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