Composite equipment for producing multi-layer plastic film

Abstract

The utility model discloses compound equipment for producing a multi-layer plastic film, which belongs to the technical field of plastic film production and comprises a film compound machine table, a first film web; a second film web; a transition conveying roller; the picking and lifting assembly is arranged on the top face of the thin film compounding machine table and is adjacent to one end of the first thin film coiled material, the picking and lifting assembly comprises a picking frame roller executing lifting movement, and the thin film drawn out of the first thin film coiled material needs to pass through the picking frame roller in a suspension mode to be compounded with the thin film of the second thin film coiled material again. A lifting space for coating and dust removal is formed between the thin film of the first thin film coiled material and the thin film of the second thin film coiled material which are lifted by the lifting frame roller; the composite compaction assembly stretches across the conveying runner groove and is fixed to the other end of the top face of the film composite machine table, and meanwhile traction equipment is arranged at the end, away from the first film coiled material, of the film composite machine table. The device ensures that the surface of the film is clean before compounding, so that the compounding quality is improved.

Description

TECHNICAL FIELD

[0001] The utility model belongs to plastic film production technical field especially a kind of composite equipment for multilayer plastic film production. BACKGROUND

[0002] In the production process of multilayer plastic film, the film composite is a key step. The traditional multilayer plastic film composite equipment usually uses simple mechanical structure to align and composite the film. There are the following problems and shortcomings: in the traditional composite equipment, the film material is directly transported by simple guide roller after being drawn out from the roll, and there is lack of effective surface cleaning device. The film material is easy to adsorb dust, particles and other impurities in the production process. These impurities will be mixed in the film interlayer during the composite process, affecting the composite quality.

[0003] After searching, like existing Chinese patent publication No. CN206067120U, a plastic film extrusion production line includes a melt extruder, a calender roll, a first guide roller, a cooling device, an embossing roller, a second guide roller, an ink jet printer, a second film unwinding roller, a composite roller and a winding roller. The plastic raw material is extruded by the melt extruder and then formed into a first film by calendering. The first film is cooled and shaped and embossed, and then combined with the second film from the second film unwinding roller at the composite roller to form a composite. The ink jet printer is arranged between the second guide roller and the composite roller, and the nozzle of the ink jet printer sprays code towards the composite surface of the first film.

[0004] The cited patent literature also has the same problem. The film material is directly transported by simple guide roller after being drawn out from the roll, and there is lack of effective surface cleaning device. The film material is easy to adsorb dust, particles and other impurities in the production process. These impurities will be mixed in the film interlayer during the composite process, affecting the composite quality. UTILITY MODEL CONTENTS

[0005] The utility model aims to provide a kind of composite equipment for multilayer plastic film production to solve the problems raised in the background art.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical scheme: a kind of composite equipment for multilayer plastic film production, comprising:

[0007] The film composite machine table is provided with a conveying flow channel groove in the middle of the top surface in a transverse direction.

[0008] The first film roll is rotatably installed on the outer wall of one end of the film composite machine table. The film drawn out from the first film roll is pulled into the conveying flow channel groove.

[0009] The second film roll is rotatably installed in the mounting inner groove of the film composite machine table adjacent to the first film roll.

[0010] Transition conveying rollers are rotatably installed above the first and second film rolls and between the inner walls of the top of the installation inner groove, and the films drawn from the first and second film rolls need to pass through the transition conveying rollers to form a preliminary composite through angular conveying;

[0011] A lifting assembly is arranged on the top surface of the film composite machine and close to one end of the first film roll, and the lifting assembly includes a lifting frame roller that performs lifting movement, and the film drawn from the first film roll needs to be suspended and pass through the lifting frame roller to be re-combined with the film of the second film roll, and the film of the first film roll lifted by the lifting frame roller has a lifting space for coating and dust removal between the film of the second film roll;

[0012] A composite compaction assembly is arranged above the conveying flow channel and fixed to the other end of the top surface of the film composite machine, and the end of the film composite machine away from the first film roll has a traction device.

[0013] Preferably, a first U-shaped frame is fixed above the lifting assembly and on the top surface of the film composite machine, and the lifting assembly further includes a U-shaped lifting rod for rotatably installing the lifting frame roller and an electric lifting rod fixed between the top surface of the U-shaped lifting rod and the inner wall of the first U-shaped frame.

[0014] Preferably, a blowing box is fixed to one of the bottom end inner walls of the first U-shaped frame, and a negative pressure suction box is fixed to the other bottom end inner wall, and the blowing box and the negative pressure suction box are respectively located on opposite sides of the lifting space.

[0015] The blowing box and the negative pressure suction box have air holes on opposite sides.

[0016] Preferably, a gas conveying pipe is arranged behind the blowing box and penetrates one side of the first U-shaped frame, and a negative pressure suction pipe is arranged behind the negative pressure suction box and penetrates the other side of the first U-shaped frame. The free end of the gas conveying pipe is connected to a gas pump, and the free end of the negative pressure suction pipe is connected to a dust collection box through a suction pump.

[0017] Preferably, the conveying flow channel conveys a composite film piece composed of films drawn from the first and second film rolls.

[0018] Preferably, a second U-shaped frame is fixed above the composite compaction assembly and on the top surface of the film composite machine, and the second U-shaped frame includes a compaction plate pressed on the top surface of the composite film piece, the surface of the compaction plate in contact with the composite film piece is smooth, and the compaction plate is integrally connected with an arc-shaped plate portion at the end of the first film roll, which helps the input of the composite film piece and prevents the composite film piece from being torn.

[0019] Preferably, the second U-shaped frame further comprises two extrusion springs symmetrically connected to the top surface of the compaction plate and a positioning vertical rod sleeved in each extrusion spring, the bottom end of the positioning vertical rod is welded together with the compaction plate, and the top end of the extrusion spring elastically abuts on the inner wall of the second U-shaped frame upward.

[0020] Preferably, the positioning vertical rod penetrates through the outer side of the second U-shaped frame upward and the top end is connected with a limiting cover plate through a locking bolt.

[0021] Preferably, cooling boxes are installed between the top surfaces of the compaction plates, the top surface of the cooling box is provided with air-permeable mesh holes, the cooling box is provided with a cooling fan in the inner cavity, and the two sides of the cooling box are provided with air outlet holes.

[0022] Preferably, a rounded corner part is arranged at the vertical corner between the conveying flow channel groove and the second film roll for conveying the film, two mounting ear plates are symmetrically welded on the outer wall of the film laminating machine, and the two end connecting shafts of the first film roll are connected with the mounting ear plates through bearings.

[0023] Compared with the prior art, the technical effects and advantages of the present application are as follows:

[0024] The multi-layer plastic film production composite equipment ensures that the film materials of the first film roll and the second film roll are aligned smoothly and without distortion before entering the conveying flow channel groove, reduces the deviation and wrinkles of the film materials, and improves the composite precision. Through the lifting action of the lifting frame roller, a necessary gap can be formed between the first film roll and the second film roll to create favorable conditions for coating and dust removal operation, ensure the cleanliness of the film surface before composite, and improve the composite quality.

[0025] The compaction plate and the extrusion spring cooperate to apply uniform pressure to the composite film part, ensure that the two layers of film materials are tightly attached, and enhance the strength and durability of the composite material.

[0026] The cooling box quickly reduces the temperature of the composite film part through the combination of the cooling fan and the air-permeable mesh hole, prevents deformation or performance degradation caused by high temperature, and further improves the stability and service life of the composite material. BRIEF DESCRIPTION OF DRAWINGS

[0027] In order to more clearly illustrate the specific embodiments of the present application or the technical solutions in the prior art, the following will briefly introduce the drawings needed to be used in the specific embodiments or prior art description. Obviously, the drawings described below are some embodiments of the present application, and those skilled in the art can also obtain other drawings according to these drawings without creative labor.

[0028] Figure 1 It is the structure schematic view of the utility model;

[0029] Figure 2 It is the installation structure schematic view of the second film roll of the utility model;

[0030] Figure 3 It is the installation structure schematic view of the lifting frame roller of the utility model;

[0031] Figure 4 It is the installation state structure schematic view of the compaction plate of the utility model;

[0032] Figure 5 It is the dismounting state structure schematic view of the heating source of the utility model.

[0033] Explanation of reference signs:

[0034] In the drawing: 1, film compound machine table; 2, first film roll; 3, first U-shaped frame; 4, compound film part; 5, second U-shaped frame; 6, mounting lug plate; 7, lifting assembly; 8, compound compaction assembly; 9, conveying flow channel groove; 10, mounting inner groove; 11, second film roll; 12, transition conveying roller; 13, rounded corner part; 14, electric lifting rod; 15, U-shaped lifting rod; 16, lifting frame roller; 17, blowing box; 18, negative pressure air suction box; 19, air hole; 20, gas conveying pipe; 21, negative pressure air suction pipe; 22, compaction plate; 23, arc plate part; 24, extrusion spring; 25, positioning vertical rod; 26, limiting cover plate; 27, locking bolt; 28, cooling box; 29, air-permeable mesh; 30, cooling fan; 31, air outlet hole. DETAILED DESCRIPTION

[0035] In the following description, numerous specific details are given to provide a thorough understanding of the utility model. However, it will be apparent to one skilled in the art that the utility model can be practiced without one or more of these specific details. In other instances, well-known features are not described in detail to avoid obscuring the utility model.

[0036] Unless the direction defined separately, the directions such as up, down, left, right, front, back, inner and outer in this paper are based on the directions such as up, down, left, right, front, back, inner and outer in the drawing of the utility model, which are explained here.

[0037] The embodiment provides a kind of composite equipment for multilayer plastic film production as shown in Figures 1 to 5 Including: film compound machine table 1, first film roll 2, second film roll 11, transition conveying roller 12, lifting assembly 7, compound compaction assembly 8.

[0038] In the embodiment, the conveying flow channel groove 9 is horizontally arranged at the middle position of the top surface of the film composite machine 1, the first film roll 2 is rotatably arranged on the outer wall of one end of the film composite machine 1, and the film drawn from the first film roll 2 is pulled into the conveying flow channel groove 9; the second film roll 11 is rotatably arranged in the installation inner groove 10 of the film composite machine 1 adjacent to the first film roll 2; the first film roll 2 and the second film roll 11 respectively provide the base material and the laminating material for the composite film piece, and through the synchronous release and composite of them, the one-time molding of the multi-layer film is realized.

[0039] In the embodiment, the transition conveying roller 12 is rotatably arranged above the first film roll 2 and the second film roll 11 and between the inner walls of the top of the installation inner groove 10, and the films drawn from the first film roll 2 and the second film roll 11 need to pass through the wrap angle conveying of the transition conveying roller 12 to form the preliminary composite; the transition conveying roller 12 can smoothly guide the film materials of the first film roll 2 and the second film roll 11 into the composite area, reduce the distortion or folding of the materials, and improve the composite precision.

[0040] In the embodiment, the lifting assembly 7 is arranged on the top surface of the film composite machine 1 and adjacent to one end of the first film roll 2, the lifting assembly 7 includes the lifting frame roller 16 for performing the lifting movement, the film drawn from the first film roll 2 needs to be suspended and pass through the lifting frame roller 16 to be re-combined with the film of the second film roll 11, and the film of the first film roll 2 lifted by the lifting frame roller 16 has the lifting space for coating and dust removal with the film of the second film roll 11; the composite compacting assembly 8 is horizontally arranged above the conveying flow channel groove 9 and fixed to the other end of the top surface of the film composite machine 1, and the end of the film composite machine 1 away from the first film roll 2 is provided with the pulling device.

[0041] In the embodiment, the first U-shaped frame 3 is fixed to the top surface of the film composite machine 1 above the lifting assembly 7, the lifting assembly 7 further includes the U-shaped lifting rod 15 for rotatably arranging the lifting frame roller 16 and the electric lifting rod 14 fixedly arranged between the top surface of the U-shaped lifting rod 15 and the inner wall of the first U-shaped frame 3.

[0042] In the embodiment, the blowing box 17 is fixed to one of the bottom end inner walls of the first U-shaped frame 3, the negative pressure suction box 18 is fixed to the other bottom end inner wall, and the blowing box 17 and the negative pressure suction box 18 are respectively located at the opposite sides of the lifting space; the opposite sides of the blowing box 17 and the negative pressure suction box 18 are respectively provided with the air holes 19.

[0043] In this embodiment, the back of the blowing box 17 is provided with a gas delivery pipe 20 that penetrates to one side of the first U-shaped frame 3, and the back of the negative pressure suction box 18 is provided with a negative pressure suction pipe 21 that penetrates to the other side of the first U-shaped frame 3. The free end of the gas delivery pipe 20 is connected to a gas pump (not shown in the figure), and the free end of the negative pressure suction pipe 21 is connected to a dust collection box (not shown in the figure) through a suction pump. The blowing box 17 and the negative pressure suction box 18 are used together to blow away the tiny particles on the surface of the film using positive pressure, and negative pressure helps to adsorb the film, ensuring that the film is flat and wrinkle-free in the compounding stage, improving the quality and appearance of the final product.

[0044] In this embodiment, when the film material reaches the lower part of the blowing box 17, the air holes 19 in the blowing box 17 will spray high-speed airflow, which can effectively blow away the dust, particles and other impurities attached to the surface of the film. This step helps to remove loose contaminants on the surface of the film, creating a clean foundation for the subsequent compounding process. Then, the air holes 19 in the negative pressure suction box 18 will generate negative pressure, i.e. vacuum effect, to suck the dust and particles blown away from the surface of the film into the interior of the negative pressure suction box, and then transmit them to the dust collection box (not shown in the figure) through the negative pressure suction pipe 21 for storage or processing. This process not only removes the contaminants on the surface of the film, but also further stabilizes the position of the film, avoiding unnecessary deviation of the film due to airflow.

[0045] In this embodiment, the blowing box 17 and the negative pressure suction box 18 are arranged relatively in space to ensure that the airflow blown can directly guide the contaminants to the negative pressure area, thereby improving the cleaning efficiency. At the same time, they also closely cooperate in time to ensure that the blowing and suction processes occur almost simultaneously when the film passes through this area, minimizing the chance of contaminants re-attaching to the surface of the film. The blowing box 17 and the negative pressure suction box 18 together ensure the cleanliness and flatness of the film surface, which is crucial for the subsequent compounding process. A clean and flat film surface can improve the quality of the compounded material, avoid poor adhesion, bubbles and other problems caused by surface contamination, and thus improve the overall performance and reliability of the product.

[0046] In this embodiment, the conveying flow channel 9 conveys the compounded film piece 4 that is compounded together by the first film web 2 and the second film web 11.

[0047] In this embodiment, a second U-shaped frame 5 is fixed above the compounding and compacting assembly 8 and on the top surface of the film compounding machine 1. The second U-shaped frame 5 includes a compacting plate 22 that presses down on the top surface of the compounded film piece 4. The surface of the compacting plate 22 that is in contact with the compounded film piece 4 is smooth. The compacting plate 22 is integrally connected to an arc-shaped plate portion 23 at one end facing the first film web 2. The arc-shaped plate portion 23 helps the input of the compounded film piece 4 and prevents the compounded film piece 4 from being torn.

[0048] In this embodiment, the second U-shaped frame 5 further comprises two extrusion springs 24 symmetrically connected to the top surface of the compaction plate 22, and a positioning vertical rod 25 sleeved in each extrusion spring 24, the bottom end of the positioning vertical rod 25 is welded together with the compaction plate 22, and the top end of the extrusion spring 24 elastically abuts on the inner wall of the second U-shaped frame 5 upward. The first U-shaped frame 3 and the second U-shaped frame 5 provide structural support, ensure the correct installation and stable operation of the lifting assembly 7 and the composite compaction assembly 8, and provide installation positions for other auxiliary devices such as the air blowing box 17 and the negative pressure suction box 18.

[0049] In this embodiment, the positioning vertical rod 25 penetrates through the outer side of the second U-shaped frame 5 upward and the top end is connected with a limiting cover plate 26 through a locking bolt 27.

[0050] In this embodiment, a cooling box 28 is installed between the top surfaces of the compaction plates 22, the top surface of the cooling box 28 has air-permeable mesh holes 29, the cooling box 28 has a cooling fan 30 in the inner cavity, and the two sides of the cooling box 28 have air outlet holes 31.

[0051] In this embodiment, a rounded corner part 13 is arranged at the vertical corner between the conveying flow channel groove 9 and the second film roll 11 for the conveying of the film, and the outer wall of the film laminating machine 1 is symmetrically welded with two mounting ear plates 6, and the two end connecting shafts of the first film roll 2 are connected with the mounting ear plates 6 through bearings. The rounded corner part 13 provides smooth transition when the film material turns, avoids damage to the edges of the film, and maintains the integrity of the film.

[0052] Working principle:

[0053] The multi-layer plastic film production composite equipment installs the first film roll 2 and the second film roll 11 to the corresponding positions of the film laminating machine 1, to ensure that the film material can be smoothly unwound. Start the first film roll 2 and the second film roll 11 to draw out the film material from the rolls. The drawn-out film material is guided by the transition conveying roller 12 to ensure that the film material is smooth and free of distortion before entering the next process. The transition conveying roller 12 guides the film material to the inlet of the conveying flow channel groove 9, and preliminarily realizes the alignment and contact of the two layers of film.

[0054] The lifting assembly 7 is started, the electric lifting rod 14 drives the U-shaped lifting rod 15 to rise, and the lifting frame roller 16 is driven to lift the film material of the first film roll 2, so that a certain gap is formed between the film material of the first film roll 2 and the film material of the second film roll 11. Open the air pump to blow high-speed airflow through the air holes 19 of the air blowing box 17 to blow away the dust and particles on the surface of the first film roll 2. Open the air suction pump to generate negative pressure through the air holes 19 of the negative pressure suction box 18, to suck the blown away dust and particles into the inside of the negative pressure suction box 18, and transmit them to the dust collecting box through the negative pressure suction pipe 21 for storage or treatment.

[0055] After the first film web 2 and the second film web 11 are processed by the blowing box 17 and the negative pressure suction box 18, the film materials of the first film web 2 and the second film web 11 are realigned and are ready to enter the compounding and compacting assembly 8. The compacting plate 22 is pressed down to compact the composite film piece 4 under the action of the pressing spring 24, so as to ensure that the two layers of film materials are closely attached. The arc-shaped plate part 23 helps the smooth input of the film materials and prevents the film from being torn. The compacting plate 22 can increase the contact area with the composite film piece 4 compared with the conventional roller, so as to improve the compacting and close-attaching density of the composite film piece 4.

[0056] The cooling fan 30 generates cold air, which enters through the air inlet screen 29, rapidly reduces the temperature of the compacting plate 22, and transmits the cold energy to the composite film piece 4 pressed by the compacting plate 22 to prevent deformation or performance degradation caused by high temperature. During the cooling process, the excess gas is discharged through the air outlet hole 31 to maintain the pressure balance inside the cooling box 28.

[0057] The composite film piece 4 cooled and shaped continues to be conveyed forward along the conveying flow channel 9 until reaching the end of the film compounding machine table 1. At the end of the film compounding machine table 1, a traction device (not shown in the figure) winds the compounded film material into a finished product web, and the entire compounding process is completed.

[0058] It should be noted that, in the present document, relational terms such as one and the other and at least one of are used solely to distinguish one entity or action from another entity or action, without necessarily requiring or implying that there is any such relationship or order between these entities or actions. Moreover, the terms "comprises", "comprising", or any other variations thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but can include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, inclusion of an element in a list of elements does not exclude other identical elements not expressly listed or inherent to the process, method, article, or apparatus.

[0059] Although embodiments of the present application have been shown and described, it is to be understood that various modifications, substitutions, replacements and changes can be made to these embodiments without departing from the principles and spirit of the present application, and the scope of the present application is defined by the appended claims and their equivalents.

Claims

1. A composite equipment for producing multilayer plastic films, characterized in that, The utility model relates to a kind of film composite machine platform (1), top surface middle position transverse arrangement has conveying flow channel groove (9); First film roll (2), rotation is installed in one end outer wall of film composite machine platform (1); Second film roll (11), immediately adjacent to first film roll (2) while rotation is installed in the installation inner groove (10) of film composite machine platform (1); Transition conveying roller (12), rotation is installed between the top of installation inner groove (10) and the inner wall of both sides of first film roll (2) and second film roll (11) upper, the film extracted from the first film roll (2) and second film roll (11) needs to be preliminary composite by the wrap angle conveying of transition conveying roller (12); Pick up lifting assembly (7), it is arranged on the top surface of film composite machine platform (1) and is immediately adjacent to one end of first film roll (2), the pick up lifting assembly (7) includes pick up frame roller (16), the film extracted from the first film roll (2) needs to be suspended by pick up frame roller (16) and be again composite with the film of second film roll (11), the film of first film roll (2) after being picked up and lifted by pick up frame roller (16) and the film between the film of second film roll (11) have the lifting space for coating and dust removal; Composite compaction assembly (8), it is across above conveying flow channel groove (9) and is fixed to the other end of the top surface of film composite machine platform (1). The top of pick up lifting assembly (7) and the top surface of film composite machine platform (1) are fixed with first U-shaped frame (3), and the pick up lifting assembly (7) further includes U-shaped lifting rod (15) for rotationally installing pick up frame roller (16) and electric lifting rod (14) fixedly installed between the top surface of U-shaped lifting rod (15) and the inner wall of first U-shaped frame (3).

2. The composite apparatus for producing a multi-layer plastic film according to claim 1, characterized in that: One of the bottom end inner wall of the first U-shaped frame (3) is fixed with blowing box (17), and the other bottom end inner wall is fixed with negative pressure suction box (18), and the blowing box (17) and negative pressure suction box (18) are located on opposite sides of the lifting space respectively.

3. The composite apparatus for producing a multi-layer plastic film according to claim 2, characterized in that: The opposite side of the blowing box (17) and negative pressure suction box (18) has air hole (19). The back of the blowing box (17) is provided with gas pipe (20) penetrating to one side of the first U-shaped frame (3), and the back of the negative pressure suction box (18) is provided with negative pressure suction pipe (21) penetrating to the other side of the first U-shaped frame (3).

4. The composite apparatus for producing a multi-layer plastic film according to claim 3, characterized in that: The conveying flow channel groove (9) conveys the composite film piece (4) that the film extracted through first film roll (2) and second film roll (11) is composite together.

5. The composite apparatus for producing a multi-layer plastic film according to claim 4, characterized in that: The top of composite compaction assembly (8) and the top surface of film composite machine platform (1) are fixed with second U-shaped frame (5), and the second U-shaped frame (5) includes compaction plate (22) pressed down on the top surface of composite film piece (4), the surface of compaction plate (22) is smoothly arranged and adheres to composite film piece (4), and the compaction plate (22) is integrally connected with arc plate part (23) towards one end of first film roll (2), which helps the input of composite film piece (4) and prevents composite film piece (4) from being broken.

6. The composite apparatus for producing a multi-layer plastic film according to claim 5, characterized in that: ​ 7. The composite apparatus for producing a multi-layer plastic film according to claim 6, characterized in that: The second U-shaped frame (5) further comprises two extruded springs (24) symmetrically connected to the top surface of the compacting plate (22) and a positioning vertical rod (25) sleeved in each extruded spring (24), the bottom end of the positioning vertical rod (25) is welded with the compacting plate (22), and the top end of the extruded spring (24) elastically abuts on the inner wall of the second U-shaped frame (5) upward.

8. The composite apparatus for producing a multi-layer plastic film according to claim 7, characterized in that: The positioning vertical rod (25) penetrates the outer side of the second U-shaped frame (5) upward and the top end is connected with a limiting cover plate (26) through a locking bolt (27).

9. The composite apparatus for producing a multi-layer plastic film according to claim 8, characterized in that: The top surface of the compacting plate (22) is provided with a cooling box (28), the top surface of the cooling box (28) is provided with a breathable mesh (29), the inner cavity of the cooling box (28) is provided with a cooling fan (30), and the two sides of the cooling box (28) are provided with air outlet holes (31).

10. The composite apparatus for producing a multi-layer plastic film according to claim 9, characterized in that: A rounded corner (13) is arranged at the vertical corner between the conveying flow channel groove (9) and the second film roll (11) for conveying the film, the outer wall of the film laminating machine (1) is symmetrically welded with two mounting ear plates (6), and the two end connecting shafts of the first film roll (2) are connected with the mounting ear plates (6) through bearings.

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