EVA (Ethylene Vinyl Acetate) adhesive film edge cutting and collecting device

Abstract

The invention relates to the technical field of EVA adhesive film production and processing equipment, and particularly discloses an EVA adhesive film edge cutting and collecting device which comprises a rack, a winding roller and an edge cutting mechanism, the winding roller and the edge cutting mechanism are arranged at the left end and the right end of the rack respectively, a driving roller is rotationally arranged in the rack, an edge material swinging mechanism is arranged between the driving roller and the edge cutting mechanism, and the edge material swinging mechanism is arranged on the rack. Leftover material collecting grooves are formed in the front end and the rear end under the leftover material swinging mechanism; the rim charge swinging mechanism comprises a U-shaped frame with the upper end rotationally connected with the rack, the lower ends of the front side and the rear side of the U-shaped frame are connected with roller frames, rim charge lapping rollers are rotationally arranged in the roller frames, and a lifting frame is arranged beside the U-shaped frame; according to the EVA adhesive film edge cutting and collecting device, due to the design of the edge material swing mechanism, cut edge materials can be tidily stacked in the edge material collecting groove through the edge material swing mechanism, and the problem that an existing EVA adhesive film is disordered after edge cutting is effectively solved.

Description

Technical Field

[0001] The invention relates to the technical field of EVA film production and processing equipment, and specifically discloses an EVA film trimming and collecting device. Background Art

[0002] EVA film is a cast film with special properties, which is widely used in many fields such as solar cells and laminated glass. In the production process of EVA film, since the winding equipment is easy to deform the EVA film rope during the automatic winding process, it is necessary to cut the edge materials at both ends before winding to ensure the winding quality of the product.

[0003] The utility model patent with application number 202220503701.7 discloses a film winding and cutting device for recycled EVA, including a frame, a bottom plate, a first pressing roller, a fixed seat, a dust removal roller, a static elimination rod, a cutting device, a second pressing roller, a fixed plate, a trimming roller, a trimming roller, a hob, a waste collection box, a fixed frame, a winding shaft, a control electric box and a film. Although the equipment disclosed in the utility model patent can remove dust and impurities sticking to both sides of the film to prevent the quality of the finished product from being affected, and at the same time trim the uneven parts on both sides of the film to keep both sides of the film flat for easy winding, the edge materials of the EVA film trimming cannot be arranged in an orderly manner, resulting in chaos on both sides of the trimming mechanism. The operator needs to frequently cut the edge materials and then clean them up, which not only increases the workload of the operator, but may even cause downtime, affecting the production efficiency of the entire EVA film. Therefore, in view of the above-mentioned deficiencies of the existing recycled EVA film winding and cutting equipment, the present application proposes an EVA film cutting and collecting device which integrates cutting, winding, and orderly collecting of edge materials. Summary of the invention

[0004] The present invention aims to provide an EVA film trimming collection device which can collect trimming, rolling and edge materials in an orderly manner, so as to solve the problem that the existing recycled EVA film rolling and cutting equipment cannot arrange the EVA film in an orderly manner after trimming the EVA film, resulting in a messy situation on site.

[0005] The present invention is achieved through the following technical solutions: An EVA film trimming and collecting device comprises a frame, a winding roller and a trimming mechanism, wherein the winding roller and the trimming mechanism are respectively arranged at the left and right ends of the frame, a driving roller is rotatably arranged in the frame, and a transmission assembly is arranged between the driving roller and the winding roller, a trimming swing mechanism is arranged between the driving roller and the trimming mechanism, and trimming collection grooves are arranged at the front and rear ends directly below the trimming swing mechanism; The edge material swinging mechanism includes a U-shaped frame with an upper end rotatably connected to a frame, and a torsion spring is provided at the rotatable connection between the U-shaped frame and the frame, the lower ends of the front and rear sides of the U-shaped frame are connected to roller frames, and edge material landing rollers are rotatably provided in the roller frames, a lifting frame is provided on the side of the U-shaped frame, a rocker lifting mechanism is provided between the driving roller and the lifting frame, a guide wheel is provided in the frame, and a pull rope is provided on the guide wheel with two ends respectively connected to the U-shaped frame and the lifting frame.

[0006] As a further configuration of the above scheme, the trimming mechanism includes a knife shaft and a knife groove roller which are rotatably arranged in a frame, and an annular blade which interacts with the knife groove roller to trim the EVA film is arranged at both the front and rear ends of the knife shaft.

[0007] As a further configuration of the above scheme, an adjusting flattening roller is rotatably arranged in a frame located on the right side of the knife groove roller, and threaded ribs with opposite spiral directions are arranged at both front and rear ends of the outer cylindrical surface of the adjusting flattening roller.

[0008] As a further configuration of the above scheme, two upper and lower material guide rollers for separating the materials after trimming are rotatably arranged in a frame located on the left side of the knife groove roller.

[0009] As a further configuration of the above scheme, the rocker lifting mechanism includes a turntable arranged at the front and rear ends of the driving roller, a connecting rod is rotatably connected to the non-center of the turntable, and the lower ends of the two connecting rods are respectively connected to the front and rear ends of the lifting frame.

[0010] As a further configuration of the above solution, a vertical sliding rod is fixedly provided at the lower end of the frame, and a sliding hole interacting with the vertical sliding rod is opened on the lifting frame.

[0011] As a further arrangement of the above scheme, a knife seat that is movable up and down is connected to the roller frame through a spring, and a cutter that acts with the edge material roller to cut off the edge material is arranged at the lower end of the knife seat, and the front and rear ends of the knife seat are connected with an end shaft that extends out of the roller frame, and a roller is rotatably arranged at the outer end of the end shaft, and an extrusion block that acts with the roller is arranged on the side wall of the frame close to the side of the edge cutting mechanism.

[0012] As a further arrangement of the above scheme, a slide rail is arranged directly below the edge material swinging mechanism, the two edge material collecting troughs are slidably arranged at the front and rear ends of the slide rail, and the front and rear ends of the frame are provided with openings for extending the edge material collecting troughs, and the frame is provided with an adjustment mechanism for driving the two edge material collecting troughs to move closer to or away from each other.

[0013] As a further configuration of the above scheme, the adjustment mechanism includes a bidirectional screw rod rotatably arranged on one side of the two edge material collecting troughs, and the end of the bidirectional screw rod is connected to an adjustment motor, and both edge material collecting troughs are provided with screw nuts that act on the bidirectional screw rod.

[0014] The EVA film trimming and collecting device disclosed in the present invention first cuts off the edge materials at both ends of the EVA film through a trimming mechanism before pulling and winding the EVA film. The cut EVA film is normally wound by a winding roller and provides traction force to the EVA film, while the cut edge materials at the front and rear ends are pulled into a roller frame and placed on the edge material placing roller.

[0015] During the process of the winding roller rotating and winding, the driving roller is rotated synchronously through the transmission component. During the rotation of the driving roller, the lifting frame can be reciprocated up and down by the action of the rocker lifting mechanism. During the up and down movement of the lifting frame, the U-shaped frame can be swung left and right around the upper end through the joint action of the pull rope and the torsion spring, so that the edge materials passing through the edge material roller are folded in order and placed in the edge material collecting groove, so that the edge materials of the EVA film after edge cutting can be placed in order.

[0016] In addition, the present invention further uses the functions of the cutter, roller, extrusion action block and other components, and after the edge material swinging mechanism swings back and forth with the edge material once, the blade seat can overcome the function of the spring and move toward the edge material roller side under the function of the extrusion action block and the roller, so that the edge material is cut off under the function of the two, and the cut edge material neatly falls into the edge material collecting trough. In addition, when the storage chamber on one side of the edge material collecting trough is full of edge material, the position of the edge material collecting trough can be moved and adjusted, so that the storage chamber on the other side of the edge material collecting trough is put into use, so that each edge material collecting trough can be fully stacked and collect more edge material, and finally, when the edge material collecting trough is full of edge material, it can be extended from the opening for quick cleaning, and after cleaning, it can be retracted and reset to run again.

[0017] Compared with the prior art, the present invention has the following beneficial effects: The EVA film trimming and collecting device disclosed in the present invention adopts the design of a trimming swing mechanism, so that the trimmed materials can be neatly stacked in a trimming collection groove by the trimming swing mechanism, effectively solving the problem of disorderly trimming of the existing EVA film, and the action of the trimming swing mechanism is synchronized with the traction of the EVA film through the rocker lifting mechanism, so that the trimming can be affected by the trimming swing mechanism throughout the whole process, thereby ensuring the stability of the trimming stacking process.

[0018] The present invention further transforms and upgrades the edge material swinging mechanism and the edge material collecting trough, so that the swinging mechanism can quickly cut off the edge material after each reciprocating swing with the edge material, and the edge material after the fixed-length cutting can be placed more neatly in the edge material collecting trough; at the same time, due to the movable and adjustable design of the edge material collecting trough, after the storage cavity on one side of the edge material collecting trough is full of edge material, the position of the edge material collecting trough can be moved and adjusted, so that the storage cavity on the other side of the edge material collecting trough is put into use, so that each edge material collecting trough can be fully stacked and collect more edge material, reducing the number and frequency of operators concentrating on cleaning the edge material, and improving the efficiency of the entire EVA film production line. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings required for describing the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other accompanying drawings can be obtained based on these accompanying drawings without paying creative work.

[0020] Figure 1 It is a schematic diagram of the three-dimensional structure from a first angle of the present invention; Figure 2 It is a schematic diagram of the three-dimensional structure from a second angle of the present invention; Figure 3 It is a schematic diagram of the main plane structure of the present invention; Figure 4 It is a schematic diagram of the three-dimensional structure inside the frame of the present invention; Figure 5 It is a three-dimensional structural schematic diagram of the edge material swinging mechanism in the present invention; Figure 6 It is a schematic diagram of the three-dimensional structure of the edge material swinging mechanism and the driving roller in the present invention; Figure 7 For the present invention Figure 5 Schematic diagram of the enlarged structure at point A in the middle. DETAILED DESCRIPTION

[0021] In order to enable those skilled in the art to better understand the solution of the present application, the technical solution in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work should fall within the scope of protection of the present application.

[0022] It should be noted that, in the absence of conflict, the embodiments and features in the embodiments of the present application can be combined with each other. Figures 1 to 7 , and describes the application in detail with reference to embodiments. Example 1

[0023] Embodiment 1 discloses an EVA film trimming and collecting device, see the attached Figure 1-4 The main body of the device includes a frame 1, a winding roller 2 and a scrap collecting trough 3. The winding roller 2 is rotatably arranged at the upper left end of the frame 1, and a driving component 4 fixed to the side plate of the frame 1 is connected to the end of the winding roller 2, so that the winding roller 2 is driven by the driving component 4 to rotate, thereby pulling the EVA film 100 from right to left, and in the pulling process, it first passes through the trimming mechanism 5 at the right end of the frame 1 for trimming, and then is wound onto the winding roller 2 through the guiding operation of the driving roller 6. At the same time, a scrap swing mechanism 7 is arranged between the driving roller 6 and the trimming mechanism 5, and two scrap collecting troughs 3 are arranged directly below the front and rear scrap swing mechanisms 7, so that the scraps of the EVA film can be neatly folded and placed in the scrap collecting trough 3.

[0024] The trimming mechanism 5 includes a knife groove roller 501 rotatably arranged in the frame 1, a knife shaft 502 rotatably arranged above the knife groove roller 501, and then an annular blade 503 is installed at the front and rear ends of the knife shaft 502. The distance between the two annular blades 503 is determined by the width of the EVA film, and the position of the annular blade 503 can be adjusted according to actual conditions. In addition, in order to ensure that the EVA film can be pulled into the entire frame 1 in the center, an adjustment flattening roller 504 is also arranged in the frame 1 on the right side of the knife groove roller 501. The front and rear ends of the outer cylindrical surface of the adjustment flattening roller 504 are both provided with threaded ribs with opposite spiral directions, so that the EVA film 100 can drive the adjustment flattening roller 504 to rotate when passing through it, and then the EVA film 100 is flattened and adjusted in the center along the width direction through the threaded ribs at the front and rear ends.

[0025] Two upper and lower guide rollers 8 are rotatably arranged in the frame 1 on the left side of the knife groove roller 501, so that the EVA film body after trimming is pulled into the driving roller 6 through the upper guide roller 8, and the edge material is introduced into the edge material swing mechanism 7 by the lower guide roller 8.

[0026] Reference Figure 5 and attached Figure 6The edge material swing mechanism 7 includes a U-shaped frame 701 whose upper end is rotatably arranged in the frame 1, and a torsion spring (not shown in the figure) is arranged at the rotation connection between the U-shaped frame 701 and the frame 1. Roller frames 702 are connected to the lower ends of the front and rear sides of the U-shaped frame 701, and an edge material lap roller 703 is rotatably arranged at the lower end of each roller frame 702. A lifting frame 704 is arranged beside the U-shaped frame 701, and a wire wheel shaft 705 is arranged in the frame 1 above the lifting frame 704, and wire wheels 706 are arranged at the front and rear ends of each wire wheel shaft 705, and then a pull rope 707 is arranged on each wire wheel 706, and the two ends of the pull rope 707 are respectively connected to the lifting frame 704 and the U-shaped frame 701. When the lifting frame 704 moves downward, the U-shaped frame 701 can be pulled by the pull rope 707, so that the lower end of the U-shaped frame 701 rotates to one side of the lifting frame 704. When the lifting frame 704 rises, the U-shaped frame 701 can be reversely rotated and reset under the action of the torsion spring, thereby achieving a swinging effect.

[0027] Reference Figure 1 and attached Figure 5 A transmission assembly 9 is provided at one end of the winding roller 2 and the driving roller 6. The transmission assembly 9 can be in the form of a pulley + transmission belt or a sprocket + chain. Then, a turntable 601 is concentrically connected to both ends of the front and rear ends of the driving roller 6 extending out of the frame 1. A connecting rod 602 is rotatably connected to the non-center of the turntable 601. Then, the lower end of the connecting rod 602 is connected to both ends of the front and rear ends of the lifting frame 704 extending out of the frame 1. In addition, in order to ensure that the lifting frame 704 is stably lifted and lowered under the action of the turntable 601 and the connecting rod 602, a vertical slide bar 10 is also provided in the frame 1, and a slide hole interacting with the vertical slide bar 10 is opened on the lifting frame 704.

[0028] When the EVA film trimming and collecting device disclosed in the first embodiment is in operation, after the EVA film 100 is cut by the front and rear annular blades 503 , the main body in the middle of the EVA film 100 passes through the guide roller 8 and the driving roller 6 in turn and is wound onto the winding roller 2 .

[0029] After slitting, the edge materials at the front and rear ends enter the roller frame 702 and are placed on the edge material placement roller 703. While the EVA film 100 is being pulled and trimmed, the driving roller 6 is actively rotated due to the action of the transmission component 9. During the rotation of the driving roller 6, the lifting frame 704 is reciprocated up and down through the action of the turntable 601 and the connecting rod 602. Then, during the up and down movement of the lifting frame 704, the U-shaped frame 701 is swung left and right around the upper end rotating connection through the action of the pull rope 707 and the torsion spring, so that the EVA film edge materials fed onto the edge material placement roller 703 are neatly stored in the edge material collecting trough 3 in a reciprocating folding manner, which effectively solves the problem of messy edge materials after the existing EVA film 100 is trimmed. Example 2

[0030] Example 2 discloses an EVA film trimming and collecting device further designed based on Example 1, and the similarities between the device and Example 1 are not described again.

[0031] Reference Figure 3 and attached Figure 7 In this embodiment 2, linear slots 7021 are provided at both the front and rear ends of the roller frame 702 above the edge material lap roller 703, and a limit slider 708 is provided in the linear slot 7021, and a spring 709 is provided between the limit slider 708 and the bottom wall or top wall of the linear slot 7021. A knife bar seat 710 is provided between the two limit sliders 708, and a cutter 711 is provided at the lower end of the knife bar seat 710 to interact with the edge material lap roller 703. At the same time, end shafts 712 extending out of the limit slider 708 are provided at both the front and rear ends of the knife bar seat 710, and then a roller 713 is provided at the outer end of the end shaft 712. In addition, an extrusion action block 714 that interacts with the roller 713 is provided on the side wall of the frame 1 close to the side of the edge cutting mechanism 5. When the U-shaped frame 701 swings back to the extrusion action block 714, the roller 713 will be moved downward under the action of the extrusion action block 714 to overcome the force of the spring 709, and then the edge material will be cut off under the action of the cutter 711 and the edge material roller 703, so that the edge material swinging mechanism 7 can not only stack the edge material neatly in the edge material collecting groove 3, but also cut the edge material every time it swings, so that the cut edge material can be recovered and stacked more neatly.

[0032] Reference Figure 1 and attached Figure 4 A slide rail 11 is provided on the bottom wall of the frame 1 below the two edge material collecting grooves 3, and then the two edge material collecting grooves 3 are slidably provided at the front and rear ends of the slide rail 11, and through openings capable of extending the edge material collecting grooves 3 are provided on the front and rear side panels of the frame 1. A bidirectional screw rod 12 is rotatably provided on one side of the two edge material collecting grooves 3, and an adjustment motor 13 fixed to the outer side of the frame 1 is connected to the end of the bidirectional screw rod 12, and then a screw rod nut 301 acting on the bidirectional screw rod 12 is provided on the outer side of each edge material collecting groove 3.

[0033] Through the above further design, the second embodiment of the present invention makes the scraps of the EVA film fall into the scrap collecting trough 3 and stack after being cut off each time it swings. When one end of the inner cavity of the scrap collecting trough 3 is full of scraps, the bidirectional screw 12 is driven to rotate a certain angle by adjusting the motor 13, so that the two scrap collecting troughs 3 move a certain distance away from each other, and then the empty area inside the scrap collecting trough 3 is moved to the bottom of the roller frame 702 for collection again, until the entire scrap collecting trough 3 is full of scraps, the scrap collecting trough 3 is completely extended from the opening, at which time the operator can quickly take away the scraps, and then control the two scrap collecting troughs 3 to approach each other and reset them so that they can be put into use again.

[0034] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. An EVA film trimming and collecting device, comprising a frame, a winding roller and a trimming mechanism, wherein the winding roller and the trimming mechanism are respectively arranged at the left and right ends of the frame, characterized in that: A driving roller is rotatably arranged in the frame, and a transmission assembly is arranged between the driving roller and the winding roller, a side material swinging mechanism is arranged between the driving roller and the edge cutting mechanism, and side material collecting grooves are arranged at both the front and rear ends directly below the side material swinging mechanism; The edge material swinging mechanism includes a U-shaped frame with an upper end rotatably connected to a frame, and a torsion spring is provided at the rotatable connection between the U-shaped frame and the frame, the lower ends of the front and rear sides of the U-shaped frame are connected to roller frames, and edge material landing rollers are rotatably provided in the roller frames, a lifting frame is provided on the side of the U-shaped frame, a rocker lifting mechanism is provided between the driving roller and the lifting frame, a guide wheel is provided in the frame, and a pull rope is provided on the guide wheel with two ends respectively connected to the U-shaped frame and the lifting frame.

2. The EVA film trimming collection device according to claim 1, characterized in that: The trimming mechanism comprises a knife shaft and a knife groove roller which are arranged in a frame and rotate up and down. The front and rear ends of the knife shaft are both provided with an annular blade which acts with the knife groove roller to trim the EVA film.

3. The EVA film trimming collection device according to claim 2, characterized in that: An adjusting flattening roller is rotatably arranged in a frame located on the right side of the knife groove roller, and threaded ribs with opposite spiral directions are arranged at both the front and rear ends of the outer cylindrical surface of the adjusting flattening roller.

4. The EVA film trimming collection device according to claim 2, characterized in that: Two upper and lower material guide rollers for separating materials after trimming are rotatably arranged in a frame located on the left side of the knife groove roller.

5. The EVA film trimming collection device according to claim 1, characterized in that: The rocker lifting mechanism comprises a turntable arranged at the front and rear ends of the driving roller, a connecting rod is rotatably connected at a non-center portion of the turntable, and the lower ends of the two connecting rods are respectively connected to the front and rear ends of the lifting frame.

6. The EVA film trimming collection device according to claim 5, characterized in that: A vertical sliding rod is fixedly arranged at the lower end of the frame, and a sliding hole interacting with the vertical sliding rod is opened on the lifting frame.

7. The EVA film trimming collection device according to claim 1, characterized in that: The roller frame is connected with a knife seat that can move up and down through a spring, and the lower end of the knife seat is provided with a cutter that acts with the edge material roller to cut off the edge material, the front and rear ends of the knife seat are connected with an end shaft that extends out of the roller frame, and the outer end of the end shaft is rotatably provided with a roller, and an extrusion block that acts with the roller is provided on the side wall of the frame close to the side of the cutting mechanism.

8. The EVA film trimming collection device according to claim 7, characterized in that: A slide rail is arranged directly below the edge material swinging mechanism, and the two edge material collecting troughs are slidably arranged at the front and rear ends of the slide rail, and the front and rear ends of the frame are provided with openings for extending the edge material collecting troughs, and the frame is provided with an adjustment mechanism for driving the two edge material collecting troughs to move closer to or away from each other.

9. The EVA film trimming collection device according to claim 7, characterized in that: The adjustment mechanism includes a bidirectional screw rod rotatably arranged on one side of two edge material collecting grooves, and the end of the bidirectional screw rod is connected to an adjustment motor. Both edge material collecting grooves are provided with screw rod nuts that act on the bidirectional screw rod.

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