Process and device for compounding packaging film PVC (polyvinyl chloride) and CPP (chlorinated polypropylene)

Abstract

The invention discloses a packaging film PVC and CPP composite technology and device, and belongs to the technical field of packaging film laminating. Comprising a bracket, and a first discharging roller, a second discharging roller, a compounding roller and a winding roller which are rotationally connected to the bracket. The first discharging roller is used for placing a PVC sheet roll material, the second discharging roller is used for placing a CPP film roll material, and the composite roller is used for overlapping, compounding and bonding the PVC sheet material and the CPP film into a composite film. And the winding roller is used for winding the compounded composite film into a roll material. And the bonding device is connected to the upper part of the bracket, so that the composite film is stably bonded without wrinkles. The problems that in an existing device, in the composite bonding process, a CPP film moves through pulling and is attached to a PVC film, in the pulling process of the CPP film, the film can be prolonged under the action of pulling force, so that shrinkage wrinkles easily appear on the surface of a packaging film, or bonding is unstable are solved; and if the adhesive is excessively exposed in the air, the adhesive is solidified, so that the packaging film is unstable in adhesion and easy to separate.

Description

Technical Field

[0001] The invention belongs to the technical field of packaging film laminating, and in particular relates to a packaging film PVC composite CPP process and device. Background Art

[0002] The packaging film composite film is to bond a thin film on the surface of the packaging film to improve the performance of the packaging film. The surface of the PVC packaging film is composited with CPP film (polypropylene film) to make the packaging film have the characteristics of CPP film. While having the characteristics of PVC film (polyvinyl chloride film), through the composite, the high temperature cooking, oil resistance, good air tightness and high heat sealing strength of CPP film are utilized, making the packaging film more widely used.

[0003] During the packaging film lamination process, it is necessary to apply adhesive on the surface of the packaging film, and then attach the CPP film to the side of the packaging film coated with adhesive, and laminate the CPP film on the packaging film. However, during the lamination process, there are the following defects: During the composite bonding process, the CPP film is pulled and moved to fit on the PVC film. During the pulling process, the CPP film is stretched due to the tensile force, which makes the surface of the packaging film prone to shrinkage wrinkles or unstable bonding. 2. If the adhesive is exposed to the air too much, it will solidify, making the packaging film unstable and easy to fall off. Summary of the invention

[0004] In view of this, the purpose of the present invention is to provide a packaging film PVC composite CPP process and device to solve the problem that in the existing device, during the composite bonding process, the CPP film is moved and attached to the PVC film by pulling, and the CPP film is stretched due to the tension during the pulling process, which makes the surface of the packaging film prone to shrinkage wrinkles or causes unstable bonding; and if the adhesive is exposed to the air too much, it will cause the adhesive to solidify, making the packaging film unstable and easy to fall off.

[0005] In order to achieve the above object, the present invention provides the following technical solutions: The present invention discloses a packaging film PVC composite CPP process and device, comprising a support and a first unwinding roller, a second unwinding roller, a composite roller, and a winding roller rotatably connected to the support, wherein the first unwinding roller is used to place a PVC sheet coil, the second unwinding roller is used to place a CPP film coil, the composite roller is used to overlap, composite and bond the PVC sheet and the CPP film into a composite film, and the winding roller is used to roll the composite film into a coil, the height of the composite roller and the winding roller is greater than that of the first unwinding roller and the second unwinding roller, the first unwinding roller is coated with a heating device, the upper part of the support is connected with a bonding device, and the bonding device comprises: a first pulley, a second pulley, a third pulley, a fixed frame, a first fixed plate, a second fixed plate, a first rotating rod, a second rotating rod, a first pressure roller, an adjusting rod, a second pressure roller and a motor, the first pulley is fixedly connected to the outer side of the composite roller, the fixed frame is fixedly connected to the upper part of the support, and the first fixed plate is fixedly connected to the lower part of the fixed frame. The transmission mechanism is a plurality of first and second axial thrusters, each of which is connected to the first and second axial thrusters, and the plurality of second axial thrusters are connected to the first and second axial thrusters respectively.

[0006] Furthermore, the second fixed plate is connected to an adjusting rod, and the adjusting rod is composed of a screw and a nut. A first sliding groove is provided at the upper end of the fixed frame, and the second fixed plate is slidably connected to the first sliding groove. A second sliding groove is provided at the upper end of the fixed frame, and the second rotating rod passes through the second sliding groove and is slidably connected to the second sliding groove. A third sliding groove is provided at the upper end of the fixed frame, and the screw passes through the third sliding groove and is slidably connected to the third sliding groove. The screw is rotatably connected to the second fixed plate, and the screw is threadedly connected to the nut.

[0007] Furthermore, a glue coating device is connected to the upper end of the bracket, and the glue coating device includes: a glue storage barrel, a baffle, a glue storage bag, a push plate, a spring, a glue discharge pipe, a glue coating roller, a glue groove and a glue roller. The glue storage barrel is fixedly connected to the bottom of the bracket, the push plate is slidably connected to the inner wall of the glue storage barrel, the spring is located between the bottom of the bracket and the push plate, the baffle is detachably connected to the upper part of the glue storage barrel, the glue discharge pipe passes through the baffle and is fixedly connected to the baffle, one end of the glue storage bag is connected to the glue discharge pipe, the glue coating roller is rotatably connected to the upper end of the bracket, the upper end of the bracket is rotatably connected to the glue roller, one end of the glue roller is in contact with the glue coating roller, the glue groove is fixedly connected to the side of the upper end of the bracket, the glue groove is provided with a glue outlet, and the upper end of the glue discharge pipe is connected to the glue groove.

[0008] Furthermore, there are multiple glue storage barrels which are evenly arranged at the lower end of the glue groove.

[0009] Furthermore, the outer sides of the winding roller and the adhesive roller are both connected with a driving device.

[0010] Furthermore, the heating device includes: a fixed shell, an air inlet, a heating block and a discharge port, the fixed shell is located on the upper part of the bracket, the air inlet is opened on the side of the fixed shell, the heating block is fixedly connected to the inner side of the fixed shell, and the discharge port is opened on the side of the fixed shell.

[0011] Further, the upper portion of the fixed frame is connected to a solidifying device, and the solidifying device includes: a transverse plate, a fourth pulley, a first rotating shaft, a first bevel gear, a second rotating shaft, a second bevel gear, a driving rod and a fan blade, the transverse plate is fixedly connected to the upper end of the fixed frame, and the fourth pulley has two, one of which is fixedly connected to the first rotating rod, the first rotating shaft is rotatably connected to the side of the transverse plate, and the other fourth pulley is fixedly connected to the first rotating shaft, a belt is connected between the two fourth pulleys, the first rotating shaft passes through the first bevel gear, the second rotating shaft is rotatably connected to the upper portion of the transverse plate, the second rotating shaft passes through the second bevel gear and is fixedly connected to the second bevel gear, the first bevel gear is meshed with the second bevel gear, the driving rod passes through the transverse plate and is rotatably connected to the transverse plate, one end of the driving rod is connected to the fan blade, and a belt is connected between the driving rod and the second rotating shaft.

[0012] Furthermore, a plurality of the driving rods are connected to fan blades, and the plurality of driving rods are connected to each other via belts.

[0013] Further, the steps are as follows: Step 1. Prepare the rolled PVC sheet and the CPP film to be laminated, and select the corresponding glue, curing agent and solvent; Step 2. Put the prepared PVC sheet material into the heating device and heat it to a suitable temperature for constant temperature treatment; Step 3. Mix the glue and curing agent in proportion and add an appropriate amount of solvent to make an adhesive. Then pour the adhesive into a glue storage bag and put the glue storage bag into a glue storage barrel. Step 4. Install the rolled PVC sheet and CPP film on the bracket and make preparations; Step 5. After checking that the machine preparation work is completed, the composite equipment is started and operated, the PVC sheet and the CPP film are bonded and composited into one, and the composite film roll is rolled up. After completion, the composite film roll is placed in the insulation room for 24 hours and then taken out, and the whole composite process is completed.

[0014] The beneficial effects of the present invention are: The present invention discloses a packaging film PVC composite CPP process and device. The composite roller is used to make a PVC sheet and a CPP film pass around the composite roller, so that the PVC sheet and the CPP film overlap and bond together to form a composite film; the composite film is bonded more tightly by a bonding device, and the composite film is driven to move together by the bonding device, so that the newly bonded composite film moves smoothly, so that the composite film is prevented from being separated during initial bonding, and the composite film is put in an extruded state as a whole to prevent the occurrence of stretching wrinkles; the composite film is closely attached by adjusting the vertical height of a second pressing roller; the vertical height of the second pressing roller is fixed by an adjusting rod to prevent the second pressing roller from shaking during operation ; The glue coating device prevents the adhesive from being excessively exposed to the air in a normal state, thereby preventing the adhesive from solidifying; the spring drives the push plate down when it is subjected to pressure from the glue storage bag, and when the adhesive in the glue groove decreases, the adhesive in the glue storage bag decreases accordingly because it is in communication with the glue groove, and at the same time, the pressure on the spring is reduced to push the glue storage bag to move, so that the glue outlet pipe and the glue storage bag are always in a connected state; the spring will push the glue storage bag to move only when the adhesive in the glue storage bag decreases, thereby avoiding excessive exposure of the adhesive to the air and preventing the adhesive from solidifying; the solidification device allows the bonded composite film to solidify quickly to prevent the composite film from detaching.

[0015] Other advantages, objectives and features of the present invention will be described in the following description and will be apparent to those skilled in the art to some extent, or those skilled in the art may be taught from the practice of the present invention. The objectives and other advantages of the present invention may be realized and obtained through the following description. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to make the purpose, technical solution and beneficial effects of the present invention clearer, the present invention provides the following drawings for illustration: Figure 1 It is a schematic diagram of the structure of the present invention; Figure 2 This is an enlarged view of point A of the present invention; Figure 3 It is a side view of the present invention; Figure 4 This is an enlarged view of B of the present invention; Figure 5 It is a partial schematic diagram of the heating block and other components of the present invention; Figure 6 This is an enlarged view of point C of the present invention.

[0017] The markings in the attached drawings are as follows: 1, bracket; 2, heating device; 21, fixed shell; 22, air inlet; 23, heating block; 3, second unwinding roller; 4, composite roller; 5, winding roller; 6, bonding device; 61, first pulley; 62, second pulley; 63, first fixed plate; 64, first rotating rod; 65, first pressure roller; 66, fixed frame; 67, third pulley; 68, second fixed plate; 69, second rotating rod; 610, second pressure roller; 611, driving belt; 612, motor; 613, adjusting rod; 6131, nut; 6132, screw; 6133, The first slide; 6134, the second slide; 6135, the third slide; 7, the glue coating device; 71, the glue coating roller; 72, the glue roller; 73, the glue groove; 74, the glue storage barrel; 75, the push plate; 76, the spring; 77, the glue storage bag; 78, the glue outlet; 79, the baffle; 711, the glue outlet pipe; 8, the solidification device; 81, the fourth pulley; 82, the first rotating shaft; 83, the cross plate; 84, the first bevel gear; 85, the second bevel gear; 86, the second rotating shaft; 87, the fan blade; 88, the driving rod; 9, the belt; 10, the first unloading roller; 11, the driving device; 12, the composite film. DETAILED DESCRIPTION

[0018] like Figures 1 to 5 As shown, a packaging film PVC composite CPP process and device of the present invention comprises a support 1 and a first unwinding roller 10, a second unwinding roller 3, a composite roller 4, and a winding roller 5 rotatably connected to the support 1. The first unwinding roller 10 is used to place PVC sheet coils, and the second unwinding roller 3 is used to place CPP film coils. The composite roller 4 is used to overlap and composite the PVC sheet and the CPP film to form a composite film 12, and the winding roller 5 is used to roll the composite film 12 into a roll to collect the composite film 12. The height of the composite roller 4 and the winding roller 5 is greater than that of the first unwinding roller 10 and the second unwinding roller 3, so that the coil has a tensile force to facilitate the composite roller 4 to composite the coil.

[0019] The first unloading roller 10 is covered with a heating device 2 for heating the PVC sheet, and the heating device 2 includes: a fixed shell 21, an air inlet 22, a heating block 23 and a discharge port (not shown in the text). The fixed shell 21 is located on the upper part of the bracket 1, so that the first unloading roller 10 is located in the fixed shell 21. The air inlet 22 is opened on the side of the fixed shell 21 to allow air circulation. The heating block 23 is fixedly connected to the inner side of the fixed shell 21 to heat the first unloading roller 10. The discharge port is opened on the side of the fixed shell 21, so that the PVC sheet is discharged from the discharge port.

[0020] The upper part of the bracket 1 is connected with a bonding device 6 for strengthening the bonding of the composite film 12, and the bonding device 6 includes: a first pulley 61, a second pulley 62, a third pulley 67, a fixed frame 66, a first fixed plate 63, a second fixed plate 68, a first rotating rod 64, a second rotating rod 69, an adjusting rod 613, a first pressure roller 65, a second pressure roller 610 and a motor 612. The first pulley 61 is fixedly connected to the outer side of the composite roller 4, and the first pulley 61 is driven to rotate through the composite roller 4. The fixed frame 66 is fixedly connected to the upper part of the bracket 1, the first fixed plate 63 is fixedly connected to the lower part of the fixed frame 66, and there are a plurality of first rotating rods 64 that are evenly arranged on one side of the first fixed plate 63 and are rotatably connected to the first fixed plate 63. The plurality of first rotating rods 64 are all penetrated with a first pressure roller 65, and the first pressure roller 65 plays a role in resisting the composite film 12. The second pulley 62 has two first rotating rods 64 respectively fixedly connected to the two ends of the first fixed plate 63. A belt 9 is connected between the first pulley 61 and the second pulley 62, and the first pulley 61 drives the second pulley 62 and the first rotating rod 64 to rotate. A belt 9 is connected between the two second pulleys 62, so that the two second pulleys 62 and the first rotating rod 64 rotate. The second fixed plate 68 is slidably connected to the upper end of the fixed frame 66. There are multiple second rotating rods 69 that are evenly arranged on one side of the second fixed plate 68 and are rotatably connected to the second fixed plate 68, so that the second rotating rod 69 is fixed on the second fixed plate 68. The multiple second rotating rods 69 are all penetrated by the second pressing roller 610. The third pulley 67 has two second rotating rods 69 respectively fixedly connected to the two ends of the second fixed plate 68. One end of the motor 612 is connected to the second fixed plate 68, and the output shaft of the motor 612 is fixedly connected to one of the third pulleys 67, so as to drive the third pulley 67 to rotate. A belt 9 is connected between the two third pulleys 67, so that the two third pulleys 67 rotate synchronously. The motor 612 rotates at the same speed as the composite roller 4. The adjustment rod 613 is located at the upper end of the fixed frame 66 to control the vertical height of the second pressing roller 610. The first pressing roller 65 and the second pressing roller 610 are both covered with a driving belt 611 on the outside to drive the composite film 12 to move. The composite film 12 is located between the two driving belts 611.

[0021] The working principle of the above scheme is as follows: when producing the composite film 12, the heating device 2 is first started to heat the PVC coil to a constant temperature so as to facilitate the fusion of the CPP film. After the constant temperature heating is completed, the PVC coil and the CPP film are wound on the composite roller 4, and the composite roller 4 is started at this time to overlap and bond them together. When the composite roller 4 rotates, the sheets on the first unwinding roller 10 and the second unwinding roller 3 can be moved at any time. When the composite film 12 passes through the gap of the driving belt 611, the first pulley 61 drives the first pressing roller 65 to rotate through the composite roller 4. The first pressing roller 65 moves the driving belt 611 to move the composite film 12. At this time, the height of the second pressing roller 610 is adjusted by adjusting the rod 613, so that the second pressing roller 610 is close to the composite film 12, and the driving belt 611 is attached to the composite film 12 to squeeze the composite film 12. The motor 612 is started to rotate the third pulley 67 and the second pressing roller 610, so that the driving belt 611 rotates to press the composite film 12, and drives the composite film 12 to move to prevent the composite film 12 from being stretched and deformed, and also makes the composite film 12 adhere more tightly. At this time, the composite film 12 after adhesion is completed is stored by the rotation of the winding roller 5.

[0022] The beneficial effects of the above scheme are as follows: the PVC sheet and the CPP film are allowed to bypass the composite roller 4 through the composite roller 4, so that the PVC sheet and the CPP film overlap and bond together to form a composite film 12; the composite film 12 is bonded more tightly through the bonding device 6, and the composite film 12 is driven to move together by the bonding device 6, so that the newly bonded composite film 12 moves smoothly, and the initial bonding of the composite film 12 is prevented from being detached; the composite film 12 is made to fit tightly by adjusting the vertical height of the second pressing roller 610; the vertical height of the second pressing roller 610 is fixed by the adjusting rod 613 to prevent the second pressing roller 610 from shaking during operation.

[0023] In one embodiment of the present invention, Figures 1 to 4 As shown, the second fixed plate 68 is connected to an adjustment rod 613, and the adjustment rod 613 is composed of a screw 6132 and a nut 6131. ​​A first slide groove 6133 is provided at the upper end of the fixed frame 66, and the second fixed plate 68 is slidably connected to the first slide groove 6133, so that the second fixed plate 68 can slide in the first slide groove 6133. A second slide groove 6134 is provided at the upper end of the fixed frame 66, and the second rotating rod 69 passes through the second slide groove 6134 and is slidably connected to the second slide groove 6134. A third slide groove 6135 is provided at the upper end of the fixed frame 66, and the screw 6132 passes through the third slide groove 6135 and is slidably connected to the third slide groove 6135. The screw 6132 is rotatably connected to the second fixed plate 68, and the second fixed plate 68 is moved by moving the screw 6132. The screw rod 6132 is threadedly connected with the nut 6131 . The diameter of the nut 6131 is larger than the width of the third sliding groove 6135 . The nut 6131 abuts against the upper end of the fixing frame 66 so that the second fixing plate 68 does not move any more.

[0024] The working principle of the above scheme is as follows: when the vertical height of the second pressing roller 610 needs to be adjusted, the nut 6131 is rotated so that the nut 6131 no longer conflicts with the fixing frame 66, and the second fixing plate 68 is moved to adjust the second pressing roller 610 to a suitable position. When the position of the second pressing roller 610 needs to be fixed, the nut 6131 is rotated to conflict with the fixing frame 66 so that the second pressing roller 610 and other components do not move.

[0025] The beneficial effects of the above scheme are as follows: by adjusting the vertical height of the second pressing roller 610 , the composite film 12 is made to fit tightly; by adjusting the rod 613 to fix the vertical height of the second pressing roller 610 , the second pressing roller 610 is prevented from shaking during operation.

[0026] In one embodiment of the present invention, Figures 1 to 6 As shown, the upper end of the bracket 1 is connected to a glue coating device 7 for coating glue on the glue roller 72, and the glue coating device 7 includes: a glue storage barrel 74, a baffle 79, a glue storage bag 77, a push plate 75, a spring 76, a glue outlet pipe 711, a glue coating roller 71, a glue groove 73 and a glue roller 72. The glue storage barrel 74 is fixedly connected to the bottom of the bracket 1, and the push plate 75 is slidably connected to the inner side wall of the glue storage barrel 74, so that the push plate 75 can slide on the inner side wall of the glue storage barrel 74. The spring 76 is located between the bottom of the bracket 1 and the push plate 75, and the spring 76 supports the push plate 75. The baffle 79 is detachably connected to the upper part of the glue storage barrel 74, so that the baffle 79 can be removed to facilitate the replacement of the glue storage bag 77. The glue outlet pipe 711 passes through the baffle 79 and is fixedly connected to the baffle 79. One end of the glue storage bag 77 is connected to the glue outlet pipe 711, so that the adhesive in the glue storage bag 77 can flow into the glue outlet pipe 711. The glue coating roller 71 is rotatably connected to the upper end of the bracket 1, and the upper end of the bracket 1 is rotatably connected to the adhesive roller 72. The glue groove 73 is fixedly connected to the side of the upper end of the bracket 1, and the glue groove 73 is arc-shaped and fits the adhesive roller 72. One end of the adhesive roller 72 contacts the glue coating roller 71, and the glue groove 73 is provided with a glue outlet 78. The upper end of the glue outlet pipe 711 is connected to the glue groove 73, so that the adhesive in the glue storage bag 77 can flow into the glue groove 73. There are multiple glue storage barrels 74 and they are evenly arranged at the lower end of the glue groove 73. The winding roller 5 and the outer side of the adhesive roller 72 are both connected to the driving device 11.

[0027] The working principle of the above scheme is as follows: when the CPP film needs to be coated with glue, the driving device 11 is started to rotate the adhesive roller 72, and the adhesive roller 72 adheres the adhesive in the glue groove 73 to the glue coating roller 71. The adhesive roller 72 rotates to rotate the glue coating roller 71, so that the adhesive is adhered to the CPP film through the glue coating roller 71. When the adhesive in the glue groove 73 is reduced, the adhesive is added to the glue groove 73 through the glue outlet pipe 711. When the adhesive in the glue storage bag 77 is reduced, the spring 76 is compressed less at this time, driving the push plate 75 to rise, so that the glue storage bag 77 moves so that the glue outlet pipe 711 is always connected to the glue storage bag 77. And the baffle 79 is detachable, so that the glue storage bag 77 can be replaced.

[0028] The above scheme has the beneficial effects as follows: the adhesive is not excessively exposed to the air in the normal state by the glue coating device 7, thereby preventing the adhesive from solidifying; the spring 76 drives the push plate 75 to descend when the push plate 75 is subjected to the pressure of the glue storage bag 77, and when the adhesive in the glue groove 73 decreases, the adhesive in the glue storage bag 77 decreases accordingly because it is in communication with the glue groove 73, and at the same time, the pressure reduction of the spring 76 pushes the glue storage bag 77 to move so that the glue outlet pipe 711 and the glue storage bag 77 are always in a connected state; the spring 76 pushes the glue storage bag 77 to move only when the adhesive in the glue storage bag 77 decreases, thereby preventing the adhesive from being excessively exposed to the air and preventing the adhesive from solidifying.

[0029] In one embodiment of the present invention, Figures 1 to 6As shown, the upper part of the fixed frame 66 is connected with a solidification device 8 for accelerating the solidification of the adhesive, and the solidification device 8 includes: a transverse plate 83, a fourth pulley 81, a first rotating shaft 82, a first bevel gear 84, a second rotating shaft 86, a second bevel gear 85, a driving rod 88 and a fan blade 87. The transverse plate 83 is fixedly connected to the upper end of the fixed frame 66, and there are two fourth pulleys 81, one of which is fixedly connected to the first rotating rod 64, and the fourth pulley 81 is driven to rotate when the first rotating rod 64 rotates. The first rotating shaft 82 is rotatably connected to the side of the transverse plate 83, and the other fourth pulley 81 is fixedly connected to the first rotating shaft 82. A belt 9 is connected between the two fourth pulleys 81, and the first rotating shaft 82 is rotated through the fourth pulley 81. The first rotating shaft 82 passes through the first bevel gear 84, the second rotating shaft 86 is rotatably connected to the upper part of the horizontal plate 83, the second rotating shaft 86 passes through the second bevel gear 85 and is fixedly connected to the second bevel gear 85, the first bevel gear 84 is meshed and connected to the second bevel gear 85, the first rotating shaft 82 drives the first bevel gear 84 to rotate, and the first bevel gear 84 causes the second bevel gear 85 to rotate. The driving rod 88 passes through the horizontal plate 83 and is rotatably connected to the horizontal plate 83, one end of the driving rod 88 is connected to the fan blade 87, a belt 9 is connected between the driving rod 88 and the second rotating shaft 86, and the driving rod 88 and the fan blade 87 are rotated through the second rotating shaft 86. There are multiple driving rods 88 connected to the fan blade 87, and the multiple driving rods 88 are connected in series through the belt 9, so that multiple fan blades 87 rotate at the same time.

[0030] The steps are as follows: Step 1. Prepare the rolled PVC sheet and the CPP film to be compounded, and select the corresponding glue, curing agent and solvent; Step 2. The prepared PVC sheet material is placed in the heating device 2 and heated to a suitable temperature for constant temperature treatment; Step 3. Mix the glue and curing agent in proportion and add a proper amount of solvent to make an adhesive, then pour the adhesive into the glue storage bag 77, and then put the glue storage bag 77 into the glue storage barrel 74; Step 4. Install the rolled PVC sheet and CPP film on the bracket 1 and make preparations; Step 5. After the machine preparation work is completed, the composite equipment is started and operated, the PVC sheet and the CPP film are bonded and composited into one, and 12 rolls of composite film are rolled up. After completion, the 12 rolls of composite film are placed in the insulation room for 24 hours and then taken out to complete the whole composite process. The working principle of the above scheme is as follows: when the first rotating rod 64 rotates, the fourth pulley 81 rotates accordingly, and at this time, the other fourth pulley 81 and the first rotating shaft 82 rotate accordingly through the belt 9. At this time, the first bevel gear 84 rotates to drive the second bevel gear 85 to rotate, and the second bevel gear 85 drives the second rotating shaft 86 to rotate. The second rotating shaft 86 drives the driving rod 88 to rotate through the belt 9, and at this time, the fan blade 87 rotates accordingly to blow air to the composite film 12 to solidify the adhesive.

[0031] The beneficial effect of the above solution is that the bonding composite film 12 can be quickly solidified by the solidification device 8 to prevent the composite film 12 from falling off.

[0032] Finally, it should be noted that the above preferred embodiments are only used to illustrate the technical solutions of the present invention rather than to limit it. Although the present invention has been described in detail through the above preferred embodiments, those skilled in the art should understand that various changes can be made in form and details without departing from the scope defined by the claims of the present invention.

Claims

1. A packaging film PVC composite CPP device, characterized in that: The invention comprises a support (1) and a first unwinding roller (10), a second unwinding roller (3), a compound roller (4), and a winding roller (5) which are rotatably connected to the support (1), wherein the first unwinding roller (10) is used to place a PVC sheet roll, the second unwinding roller (3) is used to place a CPP film roll, the compound roller (4) is used to overlap and bond the PVC sheet and the CPP film into a compound film (12), and the winding roller (5) is used to wind the compounded composite film (12) into a roll, the height of the compound roller (4) and the winding roller (5) is greater than that of the first unwinding roller (10) and the second unwinding roller (3), the first unwinding roller (10) is covered with a heating device (2), and the support (1) is provided with a heating device (2). The upper part of the frame (1) is connected to a bonding device (6), the bonding device (6) comprising: a first pulley (61), a second pulley (62), a third pulley (67), a fixed frame (66), a first fixed plate (63), a second fixed plate (68), a first rotating rod (64), a second rotating rod (69), a first pressure roller (65), an adjustment rod (613), a second pressure roller (610) and a motor (612), the first pulley (61) being fixedly connected to the outer side of the composite roller (4), the fixed frame (66) being fixedly connected to the upper part of the frame (1), the first fixed plate (63) being fixedly connected to the lower part of the fixed frame (66), and the first rotating rod (64) having a plurality of The first rotating rods (64) are uniformly arranged on one side of the first fixed plate (63) and are rotatably connected to the first fixed plate (63); the first pressure rollers (65) are penetrated by the plurality of the first rotating rods (64); the second pulley (62) has two first rotating rods (64) respectively fixedly connected to the two ends of the first fixed plate (63); a belt (9) is connected between the first pulley (61) and the second pulley (62); a belt (9) is connected between the two second pulleys (62); the second fixed plate (68) is slidably connected to the upper end of the fixed frame (66); the second rotating rods (69) are multiple and uniformly arranged on one side of the second fixed plate (68) and are rotatably connected to the second fixed plate (68); Each of the second rotating rods (69) is provided with a second pressure roller (610); the third pulley (67) has two second rotating rods (69) respectively fixedly connected to the two ends of the second fixed plate (68); one end of the motor (612) is connected to the second fixed plate (68); the output shaft of the motor (612) is fixedly connected to one of the third pulleys (67); a belt (9) is connected between the two third pulleys (67); the adjustment rod (613) is located at the upper end of the fixed frame (66); the first pressure roller (65) and the second pressure roller (610) are both covered with a driving belt (611) on their outer sides; and the composite film (12) is located between the two driving belts (611).

2. A packaging film PVC composite CPP device according to claim 1, characterized in that: The second fixed plate (68) is connected to an adjusting rod (613), and the adjusting rod (613) is composed of a screw rod (6132) and a nut (6131). A first sliding groove (6133) is provided at the upper end of the fixed frame (66). The second fixed plate (68) is slidably connected to the first sliding groove (6133). A second sliding groove (6134) is provided at the upper end of the fixed frame (66). The second rotating rod (69) passes through the second sliding groove (6134) and is slidably connected to the second sliding groove (6134). A third sliding groove (6135) is provided at the upper end of the fixed frame (66). The screw rod (6132) passes through the third sliding groove (6135) and is slidably connected to the third sliding groove (6135). The screw rod (6132) is rotatably connected to the second fixed plate (68), and the screw rod (6132) is threadedly connected to the nut (6131).

3. A packaging film PVC composite CPP device according to claim 1, characterized in that: The upper end of the support (1) is connected to a glue coating device (7), and the glue coating device (7) comprises: a glue storage barrel (74), a baffle (79), a glue storage bag (77), a push plate (75), a spring (76), a glue outlet pipe (711), a glue coating roller (71), a glue groove (73) and a glue roller (72). The glue storage barrel (74) is fixedly connected to the bottom of the support (1), the push plate (75) is slidably connected to the inner side wall of the glue storage barrel (74), the spring (76) is located between the bottom of the support (1) and the push plate (75), and the baffle (79) is connected to the upper side of the glue storage barrel (74). The adhesive pipe (711) passes through the baffle plate (79) and is fixedly connected to the baffle plate (79); one end of the adhesive bag (77) is connected to the adhesive pipe (711); the adhesive roller (71) is rotatably connected to the upper end of the bracket (1); the upper end of the bracket (1) is rotatably connected to the adhesive roller (72); one end of the adhesive roller (72) contacts the adhesive roller (71); the adhesive groove (73) is fixedly connected to the side surface of the upper end of the bracket (1); the adhesive groove (73) is provided with an adhesive outlet (78); and the upper end of the adhesive pipe (711) is connected to the adhesive groove (73).

4. A packaging film PVC composite CPP device according to claim 3, characterized in that: There are a plurality of glue storage barrels (74) which are evenly arranged at the lower end of the glue groove (73).

5. The packaging film PVC composite CPP device according to claim 3, characterized in that: The outer sides of the winding roller (5) and the adhesive roller (72) are both connected to a driving device (11).

6. The packaging film PVC composite CPP device according to claim 1, characterized in that: The heating device (2) comprises: a fixed shell (21), an air inlet (22), a heating block (23) and a discharge port, wherein the fixed shell (21) is located on the upper part of the bracket (1), the air inlet (22) is opened on the side of the fixed shell (21), the heating block (23) is fixedly connected to the inner side of the fixed shell (21), and the discharge port is opened on the side of the fixed shell (21).

7. The packaging film PVC composite CPP device according to claim 1, characterized in that: The upper part of the fixed frame (66) is connected to a solidifying device (8), and the solidifying device (8) comprises: a transverse plate (83), a fourth pulley (81), a first rotating shaft (82), a first bevel gear (84), a second rotating shaft (86), a second bevel gear (85), a driving rod (88) and a fan blade (87), wherein the transverse plate (83) is fixedly connected to the upper end of the fixed frame (66), and the fourth pulley (81) has two parts, one of which is fixedly connected to the first rotating rod (64), the first rotating shaft (82) is rotatably connected to the side of the transverse plate (83), and the other fourth pulley (81) is fixedly connected to the first rotating shaft (82). The first rotating shaft (82) is provided with a first bevel gear (84), the second rotating shaft (86) is rotatably connected to the upper part of the transverse plate (83), the second rotating shaft (86) is provided with a second bevel gear (85) and is fixedly connected to the second bevel gear (85), the first bevel gear (84) is meshingly connected to the second bevel gear (85), the driving rod (88) is provided with a transverse plate (83) and is rotatably connected to the transverse plate (83), one end of the driving rod (88) is connected to the fan blade (87), and a belt (9) is connected between the driving rod (88) and the second rotating shaft (86).

8. The packaging film PVC composite CPP device according to claim 7, characterized in that: The driving rods (88) include a plurality of driving rods (88) each connected to a fan blade (87), and the plurality of driving rods (88) are connected to each other via a belt (9).

9. A packaging film PVC composite CPP process, characterized in that: The packaging film PVC composite CPP device according to any one of claims 1 to 8 is prepared, comprising the following method: Step 1. Prepare the rolled PVC sheet and the CPP film to be laminated, and select the corresponding glue, curing agent and solvent; Step 2. The prepared PVC sheet material is placed in a heating device (2) and heated to a suitable temperature for constant temperature treatment; Step 3. Mix the glue and curing agent in proportion and add a proper amount of solvent to make an adhesive, then pour the adhesive into a glue storage bag (77), and then put the glue storage bag (77) into the glue storage barrel (74); Step 4. Place the rolled PVC sheet and CPP film on the bracket (1) and prepare for the process; Step 5. After the machine preparation work is completed, the composite equipment is started and operated, the PVC sheet and the CPP film are bonded and composited into one, and the composite film (12) is rolled up. After completion, the composite film (12) is placed in a heat preservation chamber for 24 hours and then taken out, thus completing the entire composite process.

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