Film covering device for PP plate production

Abstract

The invention belongs to the technical field of plate film covering, and relates to a film covering device for PP plate production, the film covering device comprises a workbench, transmission rollers, side frames, a mounting seat and a winding shaft, the multiple transmission rollers are uniformly and rotatably connected to the upper portion of the workbench at intervals, the side frames are connected to the two sides of the top of the workbench, and the mounting seat is connected to the upper portions of the side frames; a winding shaft is installed between the two installation bases, the winding device further comprises a pressing roller, a sliding shaft, a first elastic piece, a cut-off mechanism and a cutting mechanism, the sliding shaft is connected between the lower portions of the two side frames in a sliding mode, the pressing roller is connected to the sliding shaft in a rotating mode, the first elastic piece is connected between the sliding shaft and the side frames, and the cut-off mechanism and the cutting mechanism are arranged on the side frames. According to the film pasting device, after film pasting of the PP plate is completed, redundant excess materials on the two sides of the PP plate are cut through the cutting knife, and during cutting, a covering film on the PP plate can be pressed through the lower pressing frame, so that the covering film is prevented from being wrinkled, and the yield during film pasting of the PP plate is guaranteed.

Description

Technical Field

[0001] The invention belongs to the technical field of plate lamination and relates to a lamination device for producing PP plates. Background Art

[0002] PP sheet, also known as polypropylene sheet, includes pure PP sheet, modified PP sheet, reinforced PP sheet, and PP welding rod. It is a semi-crystalline material. Compared to polyethylene (PE), PP sheet is not only stronger, but also has a higher melting point, exhibiting superior thermal stability and rigidity. To protect PP sheet from wear and scratches during transportation, manufacturers typically apply a protective film to the surface of the sheet. This measure effectively prevents damage to the sheet from external environmental factors, ensuring that the product is in optimal condition when it reaches the customer.

[0003] When laminating, the existing PP sheet laminating machine uses a motor to drive the guide roller to move the PP sheet to the film roller. Through the rotation of the film roller, the covering film is attached to the surface of the PP sheet, thereby completing the film laminating process of the PP sheet. However, in the process of laminating, some excess material will inevitably remain on the front and back sides of the PP sheet. After laminating, this excess material needs to be cut. During cutting, knives are usually set on both sides of the conveyor to cut the excess material on both sides of the covering film. However, the covering film is not pressed down during cutting, and it is easy to squeeze the covering film during the cutting process, resulting in wrinkles in the covering film, which affects the yield rate of sheet lamination. Summary of the Invention

[0004] In view of this, the present invention provides a laminating device for PP board production.

[0005] The technical solution of the present invention is: a laminating device for PP sheet production, comprising a workbench, a transmission roller, a side frame, a mounting seat and a winding shaft, wherein the upper portion of the workbench is rotatably connected to a plurality of transmission rollers at even intervals, both sides of the top of the workbench are connected to side frames, the upper portion of the side frames is connected to the mounting seat, a detachable winding shaft is installed between the two mounting seats, and further comprising a pressure roller, a sliding shaft, an elastic member 1, a cutting mechanism and a cutting mechanism, a sliding shaft is slidably connected between the lower portions of the two side frames, a pressure roller is rotatably connected to the sliding shaft, an elastic member 1 is connected between the sliding shaft and the side frames, and the The side frame is provided with a cutting mechanism for cutting off the covering film and a cutting mechanism for cutting off the remaining covering film on both sides of the PP plate. The cutting mechanism includes a bidirectional screw, a splitting knife, a lower pressure frame, a guide rod and an elastic part. A bidirectional screw is rotatably connected between the right sides of the two side frames, and the splitting knives are both connected to the guide rod by threads. A guide rod is connected between the right sides of the two side frames, and the two splitting knives are both slidably connected to the guide rod. The side where the two splitting knives are close to each other is slidably connected to the lower pressure frame, and the lower pressure frame can press the covering film and the PP plate. An elastic part three is connected between the lower pressure frame and the splitting knife.

[0006] As a preferred technical solution of the present invention, the cutting mechanism includes a connecting plate, a cutting knife and a cylinder, the sliding shaft is connected to the connecting plate, the cutting knife is slidably connected to the connecting plate, a cylinder is installed in the middle of the connecting plate, and the telescopic rod of the cylinder is connected to the cutting knife.

[0007] As a preferred technical solution of the present invention, it also includes a guide mechanism, which includes a guide plate, a second elastic member and a guide shaft. Guide shafts are installed on both sides of the workbench. The upper part of the guide shaft is rotatably connected to a guide plate. The guide plate can guide the movement of the PP plate. The second elastic member is connected between the guide plate and the guide shaft.

[0008] As a preferred technical solution of the present invention, it also includes a flattening mechanism, which includes a connecting frame, a V-shaped extrusion frame, four elastic members, an extrusion bar and a pressure wheel. The top of the workbench is connected to the connecting frame, the V-shaped extrusion frame is slidably connected to the connecting frame, and four elastic members are connected between the V-shaped extrusion frame and the connecting frame. The bottom of the V-shaped extrusion frame is connected to the extrusion bar, which can contact the covering film attached to the PP sheet, and the V-shaped extrusion frame is rotatably connected to the pressure wheel.

[0009] As a preferred technical solution of the present invention, it also includes a dust suction mechanism, which includes an air pump, an air suction hood and a connecting pipe. The air suction hood is slidably connected between the two side frames, and the air suction hood can slide up and down along the side frames. An air pump is installed on the workbench, and a connecting pipe is connected between the air inlet end of the air pump and the air suction hood.

[0010] As a preferred technical solution of the present invention, the dust collection mechanism also includes a lifting wheel, a belt transmission group and a cleaning brush rod. The lifting wheel is rotatably connected to the upper part of the suction hood, and the cleaning brush rod is rotatably connected to the lower part of the suction hood. A belt transmission group is installed between the cleaning brush rod and the lifting wheel.

[0011] As a preferred technical solution of the present invention, it also includes a clamping mechanism, which includes a guide rod, a connecting shaft, a clamping roller and an elastic member five. Guide rods are connected on both sides of the sliding shaft, a connecting shaft is slidably connected between the two guide rods, an elastic member five is connected between the connecting shaft and the guide rod, and a clamping roller is rotatably connected to the connecting shaft.

[0012] As a preferred technical solution of the present invention, a collection frame is also included, and the lower part of the workbench is connected to the collection frame.

[0013] Beneficial effects: 1. After the PP sheet is filmed, the present invention uses a splitting knife to cut the excess material on both sides of the PP sheet. During cutting, the lower pressing frame can press the covering film on the PP sheet to avoid wrinkles in the covering film and ensure the yield rate when filming the PP sheet.

[0014] 2. After the film is applied to the PP sheet, the present invention can squeeze the covering film on the PP sheet through the squeezing strips on the V-shaped squeezing frame, thereby pressing the covering film and the PP sheet tightly so that the covering film and the PP sheet are in close contact. At the same time, the squeezing of the squeezing strips can assist in removing bubbles between the PP sheet and the covering film. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the three-dimensional structure of the present invention.

[0016] Figure 2 This is a structural schematic diagram of the present invention from another perspective.

[0017] Figure 3 It is a structural schematic diagram of the cutting mechanism of the present invention.

[0018] Figure 4 It is a structural schematic diagram of the guide mechanism and workbench of the present invention.

[0019] Figure 5 It is a structural schematic diagram of the guide mechanism of the present invention.

[0020] Figure 6 This is a schematic diagram of the first structure of the cutting mechanism of the present invention.

[0021] Figure 7 This is a second structural schematic diagram of the cutting mechanism of the present invention.

[0022] Figure 8It is a structural schematic diagram of the flattening mechanism and workbench of the present invention.

[0023] Figure 9 It is a structural schematic diagram of the flattening mechanism of the present invention.

[0024] Figure 10 It is a structural schematic diagram of the dust collection mechanism of the present invention.

[0025] Figure 11 It is a front view of the dust collection mechanism of the present invention after being cut apart.

[0026] Figure 12 It is a cross-sectional view of the dust collection mechanism of the present invention.

[0027] Figure 13 This is a schematic diagram of the first structure of the clamping mechanism of the present invention.

[0028] Figure 14 This is a schematic diagram of the second structure of the clamping mechanism of the present invention.

[0029] Marked in the figure: 1-workbench, 2-transmission roller, 3-side frame, 4-mounting seat, 5-winding shaft, 6-pressure roller, 61-sliding shaft, 7-elastic part one, 81-connecting plate, 82-cutting knife, 83-cylinder, 91-guide plate, 92-elastic part two, 93-guide shaft, 101-bidirectional screw, 102-dividing knife, 103-lower pressure frame, 104-elastic part three, 105-guide rod, 111-connecting frame, 112-V-shaped extrusion frame, 113-elastic part four, 114-extrusion strip, 115-pressure wheel, 121-air pump, 122-suction hood, 123-lifting wheel, 124-connecting pipe, 125-belt drive group, 126-cleaning brush rod, 131-guide rod, 132-connecting shaft, 133-clamping roller, 134-elastic part five, 14-collecting frame. DETAILED DESCRIPTION

[0030] The present invention will be described in further detail below with reference to the accompanying drawings and specific embodiments, but this does not limit the scope of protection and application of the present invention.

[0031] A laminating device for PP sheet production, such as Figure 1 、 Figure 2 、 Figure 3 、 Figure 6 and Figure 7As shown, it includes a workbench 1, a transmission roller 2, a side frame 3, a mounting seat 4, a winding shaft 5, a pressure roller 6, a sliding shaft 61, an elastic member 7, a cutting mechanism and a cutting mechanism. A plurality of transmission rollers 2 are rotatably connected to the upper part of the workbench 1 at even intervals. The front and rear sides of the top of the workbench 1 are fixedly connected to the side frames 3. The upper left side of the side frame 3 is fixedly connected to the mounting seat 4. A detachable winding shaft 5 is installed between the two mounting seats 4. A sliding shaft 61 is slidably connected between the lower parts of the two side frames 3. A pressure roller 6 is rotatably connected to the sliding shaft 61. An elastic member 7 is connected between the sliding shaft 61 and the side frame 3. The elastic member 7 is a pressure spring. The side frame 3 is provided with a cutting mechanism for cutting off the covering film and a cutting mechanism for cutting off the remaining covering film on both sides of the PP plate.

[0032] like Figure 3 As shown, the cutting mechanism includes a connecting plate 81, a cutting knife 82 and a cylinder 83. The connecting plate 81 is connected to the right side of the sliding shaft 61. The cutting knife 82 is slidably connected to the connecting plate 81. The cutting knife 82 can slide up and down along the connecting plate 81. A cylinder 83 is installed in the middle of the connecting plate 81. The telescopic rod of the cylinder 83 is connected to the cutting knife 82 so that the cylinder 83 can drive the cutting knife 82 to move up and down.

[0033] like Figure 6 and Figure 7 As shown, the cutting mechanism includes a bidirectional screw 101, a segmentation knife 102, a lower pressure frame 103, a guide rod 105 and an elastic member three 104. The bidirectional screw 101 is rotatably connected between the lower right sides of the two side frames 3, and the front and rear sides of the bidirectional screw 101 are connected to the segmentation knife 102 by threads. The guide rod 105 is fixedly connected between the lower right sides of the two side frames 3. The upper parts of the two segmentation knives 102 are slidably connected to the guide rod 105 to guide the movement of the segmentation knife 102. The side where the two segmentation knives 102 approach each other is slidably connected to the lower pressure frame 103. The lower pressure frame 103 can press the covering film and PP sheet to prevent the covering film from moving during the segmentation process. An elastic member three 104 is connected between the lower pressure frame 103 and the segmentation knife 102. The elastic member three 104 is a downward pressure spring, and the elastic member three 104 is used to apply downward pressure to the lower pressure frame 103.

[0034] When the PP sheet needs to be coated, the present coating device can be used. When in use, the rolled covering film can be placed on the winding shaft 5 first, and then the end of the covering film can be pulled out to pass under the pressing roller 6, and finally the end of the covering film can be pulled out of the pressing roller 6. Then the PP sheet can be placed on the workbench 1, and the PP sheet can be manually pushed to move to the right. The PP sheet can be assisted to move by the transmission roller 2. When the PP sheet moves to contact with the pressing roller 6, if the thickness of the PP sheet is thick, it can squeeze the pressing roller 6 to move up, so that the elastic member 7 is pressed. The elastic member 104 is compressed, and then the elastic member 104 can apply pressure to the pressing roller 6, so that the pressing roller 6 can press the PP sheet and the covering film, and press the covering film onto the PP sheet. The PP sheet covered with the covering film continues to move until it contacts the lower pressing frame 103 and presses the lower pressing frame 103 to move upward. The elastic member 3 104 is compressed. After the elastic member 3 104 is compressed, it can apply downward pressure to the lower pressing frame 103, so that the lower pressing frame 103 presses the covering film and the edge of the PP sheet tightly. At the same time, when the PP sheet and the covering film contact the dividing knife 102, When the PP sheet is completely covered with the covering film, the cutting knife 102 can be controlled to extend the telescopic rod of the cylinder 83 to drive the cutting knife 82 to move downward to cut the covering film. In this way, the device can be used to cover the PP sheet with covering film. After the covering is completed, the excess covering film on both sides of the PP sheet can be cut by the cutting knife 102, and the covering film and the PP sheet can be pressed by the lower pressing frame 103 during cutting to avoid the covering film being squeezed and deformed when being cut, thereby affecting the yield rate of the film covering work. In actual operation, the bidirectional screw 101 can be rotated according to the width of the PP sheet, thereby driving the cutting knives 102 on both sides to move, and adjusting the distance between the cutting knives 102 on both sides to make the distance between the cutting knives 102 on both sides consistent with the width of the PP sheet.

[0035] like Figure 4 and Figure 5 As shown, a guide mechanism is also included, which includes a guide plate 91, an elastic member 92 and a guide shaft 93. Guide shafts 93 are installed on the left sides of the front and rear sides of the workbench 1. The upper part of the guide shaft 93 is rotatably connected to the guide plate 91. The guide plate 91 can guide the movement of the PP plate. An elastic member 92 is connected between the guide plate 91 and the guide shaft 93, and the elastic member 92 is a torsion spring.

[0036] When conveying the PP sheet, the PP sheet can pass through the guide plates 91 on both sides. Under the action of the elastic member 92, the guide plates 91 on both sides will swing at the same time, supporting the PP sheet from the front and back sides of the PP sheet, so that the PP sheet is located in the middle position of the transmission roller 2, thereby playing the role of transporting the PP sheet in the center.

[0037] like Figure 8 and Figure 9 As shown, a flattening mechanism is also included, which includes a connecting frame 111, a V-shaped extrusion frame 112, four elastic members 113, an extrusion bar 114 and a pressure wheel 115. The top of the workbench 1 is fixedly connected to the connecting frame 111, and the connecting frame 111 is located on the right side of the side frame 3. The V-shaped extrusion frame 112 is slidably connected to the connecting frame 111, and the V-shaped extrusion frame 112 can slide up and down along the connecting frame 111. An elastic member 113 is connected between the V-shaped extrusion frame 112 and the connecting frame 111, and the elastic member 113 is a compression spring. The bottom of the V-shaped extrusion frame 112 is fixedly connected to the extrusion bar 114, and the extrusion bar 114 can contact the covering film attached to the PP sheet and extrude the covering film to fit the PP sheet. The left side of the V-shaped extrusion frame 112 is rotatably connected to the pressure wheel 115.

[0038] After the PP sheet is coated, the PP sheet continues to move and contacts the pressure wheel 115, and squeezes the pressure wheel 115 to move upward, thereby driving the V-shaped extrusion frame 112 to move upward, and the elastic member four 113 is compressed. Then the PP sheet after the coating is completed will move to the bottom of the V-shaped extrusion frame 112. The elastic member four 113 can apply downward pressure to the V-shaped extrusion frame 112 and the extrusion bar 114, so that the extrusion bar 114 can squeeze the covering film and the PP sheet, and the extrusion bar 114 presses the covering film and the PP sheet tightly. At the same time, during the extrusion process, if there are bubbles between the PP sheet and the covering film, the secondary extrusion of the extrusion bar 114 can also help remove the bubbles.

[0039] like Figure 10-12 As shown, it also includes a dust suction mechanism, which includes an air pump 121, an air suction hood 122, a lifting wheel 123, a connecting pipe 124, a belt drive group 125 and a cleaning brush rod 126. The air suction hood 122 is slidably connected between the lower left parts of the two side frames 3, and the air suction hood 122 can slide up and down along the side frames 3. The air pump 121 is installed on the front side of the workbench 1, and a connecting pipe 124 is connected between the air inlet end of the air pump 121 and the air suction hood 122. The air suction hood 122 is rotatably connected to the lifting wheel 123 on the left side, and the cleaning brush rod 126 is rotatably connected to the lower left side of the air suction hood 122. A belt drive group 125 is installed between the cleaning brush rod 126 and the lifting wheel 123.

[0040] When the PP sheet is transported, the PP sheet will pass through the suction hood 122. Before passing through the suction hood 122, the PP sheet will contact the lifting wheel 123. If the PP sheet is thicker, it will squeeze the lifting wheel 123 to move upward, causing the suction hood 122 to move upward, thereby ensuring that the suction hood 122 will contact the top of the PP sheet. Then the air pump 121 can be controlled to operate through the connecting pipe 124 to enable the suction hood 122 to generate suction to remove dust on the PP sheet. When the PP sheet moves, it can also drive the lifting wheel 123 to rotate through friction. The rotation of the lifting wheel 123 can drive the cleaning brush rod 126 to rotate through the belt drive group 125. The cleaning brush rod 126 can sweep the surface of the PP sheet when rotating to prevent dust on the PP sheet from affecting the coating process.

[0041] like Figure 13 and Figure 14 As shown, it also includes a clamping mechanism, which includes a guide rod 131, a connecting shaft 132, a clamping roller 133 and an elastic member 134. The front and rear parts of the left side of the sliding shaft 61 are fixedly connected to the guide rod 131, and a connecting shaft 132 is slidably connected between the two guide rods 131. An elastic member 134 is connected between the connecting shaft 132 and the guide rod 131. The elastic member 134 is a clamping spring, and the clamping roller 133 is rotatably connected to the connecting shaft 132.

[0042] When pulling out the covering film, first pull the connecting shaft 132 and the clamping roller 133 to the left, and the elastic member 134 is stretched. Then the covering film can be operated to pass through the gap between the clamping roller 133 and the pressure roller 6. After passing through, the clamping roller 133 is released, and the clamping roller 133 is reset under the action of the elastic member 134 to clamp the covering film. In this way, after the covering film is cut off, the clamping roller 133 and the connecting shaft 132 cooperate to clamp the covering film, which can also prevent the covering film from separating from the pressure roller 6.

[0043] like Figure 1 As shown, a collecting frame 14 is also included. The lower part of the workbench 1 is slidably connected to the collecting frame 14. After cutting, the remaining covering films on the front and rear sides will fall onto the collecting frame 14 through the gap between the transmission rollers 2, and the remaining covering films will be collected by the collecting frame 14.

[0044] The embodiments of the present invention are described in detail above with reference to the accompanying drawings. However, the present invention is not limited to the above embodiments. Various changes can be made within the scope of knowledge of those skilled in the art without departing from the spirit of the present invention.

Claims

1. A laminating device for producing PP sheets, comprising a workbench (1), a transmission roller (2), a side frame (3), a mounting seat (4) and a winding shaft (5), wherein a plurality of transmission rollers (2) are evenly spaced and rotatably connected to the upper portion of the workbench (1), side frames (3) are connected to both sides of the top of the workbench (1), a mounting seat (4) is connected to the upper portion of the side frame (3), and a detachable winding shaft (5) is installed between the two mounting seats (4), characterized in that: The side frame (3) further comprises a pressure roller (6), a sliding shaft (61), an elastic member (7), a cutting mechanism and a cutting mechanism. The sliding shaft (61) is slidably connected between the lower parts of the two side frames (3). The pressure roller (6) is rotatably connected to the sliding shaft (61). The elastic member (7) is connected between the sliding shaft (61) and the side frame (3). The side frame (3) is provided with a cutting mechanism for cutting off the covering film and a cutting mechanism for cutting off the remaining covering film on both sides of the PP plate. The cutting mechanism comprises a bidirectional screw (101), a splitting knife (102), a lower pressure frame (103), a guide rod (105) and an elastic member (7). Part three (104), a bidirectional screw (101) is rotatably connected between the right sides of the two side frames (3), and both sides of the bidirectional screw (101) are connected to a splitting knife (102) through a thread, a guide rod (105) is connected between the right sides of the two side frames (3), and the two splitting knives (102) are slidably connected to the guide rod (105), and the sides of the two splitting knives (102) close to each other are slidably connected to a lower pressing frame (103), and the lower pressing frame (103) can press the covering film and the PP plate, and an elastic part three (104) is connected between the lower pressing frame (103) and the splitting knife (102).

2. The laminating device for PP sheet production according to claim 1, characterized in that: The cutting mechanism comprises a connecting plate (81), a cutting knife (82) and a cylinder (83), wherein the sliding shaft (61) is connected to the connecting plate (81), the cutting knife (82) is slidably connected to the connecting plate (81), a cylinder (83) is installed in the middle of the connecting plate (81), and a telescopic rod of the cylinder (83) is connected to the cutting knife (82).

3. The laminating device for PP sheet production according to claim 1, characterized in that: The workbench (1) further comprises a guide mechanism, wherein the guide mechanism comprises a guide plate (91), a second elastic member (92) and a guide shaft (93). The guide shafts (93) are installed on both sides of the workbench (1). The upper portion of the guide shaft (93) is rotatably connected to the guide plate (91). The guide plate (91) can guide the movement of the PP plate. The second elastic member (92) is connected between the guide plate (91) and the guide shaft (93).

4. The laminating device for PP sheet production according to claim 1, characterized in that: The workbench (1) further comprises a flattening mechanism, wherein the flattening mechanism comprises a connecting frame (111), a V-shaped extrusion frame (112), four elastic members (113), an extrusion strip (114) and a pressure wheel (115), wherein the top of the workbench (1) is connected to the connecting frame (111), the V-shaped extrusion frame (112) is slidably connected to the connecting frame (111), four elastic members (113) are connected between the V-shaped extrusion frame (112) and the connecting frame (111), the bottom of the V-shaped extrusion frame (112) is connected to the extrusion strip (114), the extrusion strip (114) is capable of contacting a covering film attached to a PP sheet, and the pressure wheel (115) is rotatably connected to the V-shaped extrusion frame (112).

5. The laminating device for PP sheet production according to claim 1, characterized in that: The workbench (1) further comprises a dust suction mechanism, the dust suction mechanism comprising an air pump (121), an air suction hood (122) and a connecting pipe (124); the air suction hood (122) is slidably connected between the two side frames (3); the air suction hood (122) can slide up and down along the side frames (3); the air pump (121) is installed on the workbench (1); and a connecting pipe (124) is connected between the air inlet end of the air pump (121) and the air suction hood (122).

6. The laminating device for PP sheet production according to claim 5, characterized in that: The dust collection mechanism further comprises a lifting wheel (123), a belt transmission group (125) and a cleaning brush rod (126); the lifting wheel (123) is rotatably connected to the upper portion of the suction hood (122); the cleaning brush rod (126) is rotatably connected to the lower portion of the suction hood (122); and the belt transmission group (125) is installed between the cleaning brush rod (126) and the lifting wheel (123).

7. The laminating device for PP sheet production according to claim 1, characterized in that: The invention also includes a clamping mechanism, which includes a guide rod (131), a connecting shaft (132), a clamping roller (133) and an elastic member five (134). The guide rods (131) are connected to both sides of the sliding shaft (61). A connecting shaft (132) is slidably connected between the two guide rods (131). An elastic member five (134) is connected between the connecting shaft (132) and the guide rod (131). The clamping roller (133) is rotatably connected to the connecting shaft (132).

8. The laminating device for PP sheet production according to claim 1, characterized in that: It also includes a collecting frame (14), and the lower part of the workbench (1) is connected to the collecting frame (14).

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