A heat-shrinkable book wrapping machine

Abstract

This utility model relates to the field of packaging technology, specifically to a heat-shrinkable book wrapping machine. It includes a base plate with a stabilizing component at one end. Guide rails are provided on both the front and rear sides of the base plate, connected to the base plate via multiple first telescopic rods. A pressure roller is slidably mounted horizontally between two guide rails. A drive unit for driving the pressure roller is mounted on the guide rails. The stabilizing component includes two symmetrically arranged rotating plates, rotatably connected to the base plate via a third telescopic rod. A pressure plate is slidably mounted horizontally on each rotating plate. Second telescopic rods are fixed to each rotating plate, with their telescopic ends fixedly connected to the pressure plate. The pressure plates on both sides are connected by a sealing component. This utility model, through the cooperation of the symmetrical rotating plates and pressure plates, and utilizing the second telescopic rods to drive the pressure plate to slide horizontally, achieves rapid clamping and release of books, avoiding the displacement problems caused by traditional flipping methods.

Description

Technical Field

[0001] This utility model relates to the field of packaging technology, specifically to a heat-shrinkable book film packaging machine. Background Technology

[0002] Heat shrink film is a thin film that shrinks when heated, thus tightly wrapping the product. The main materials used are various thermoplastic films. Initially, PVC shrink film was the main type. However, with the continuous development of market demand, PVC shrink film has gradually decreased, while various multilayer co-extruded heat shrink films such as PE, PP, PET, OPP, PVDC, and POF have developed rapidly and become the mainstream in the market.

[0003] Patent document CN117416583A discloses a heat-shrinkable book wrapping machine. After static electricity elimination, the heat-shrinkable film passes through a feeding plate. Goods sliding down from the upper part of the feeding plate slide onto the surface of the heat-shrinkable film. Then, a turntable driven by a metal plate limits the goods. Next, the goods pass through a straight cutter. The turntable drives the straight cutter to cut at a specific frequency via a transmission belt. That is, before the goods reach the straight cutter, the turntable limits the cutting of the front part of the heat-shrinkable film of the goods. After the goods pass through the straight cutter, the heat-shrinkable film behind the goods is cut again. With the help of the turntable, the goods are limited in the middle part of the heat-shrinkable film. When passing through the cross flip bar, the cross flip bar flips the goods forward and flips the heat-shrinkable film of the rear half of the goods 180 degrees to cover the surface of the goods, so that the heat-shrinkable film completely wraps the goods. In this technical solution, in order for the heat shrink film to completely cover the packaged goods, the goods need to be flipped. After the goods are flipped, their relative position with the heat shrink film is prone to change. Therefore, the packaging process needs to be changed to ensure that the heat shrink film can effectively cover the packaged books. Utility Model Content

[0004] The main purpose of this invention is to provide a heat-shrinkable book wrapping machine that can automatically wrap heat-shrink film onto the outside of books, thereby improving packaging efficiency.

[0005] To achieve the above objectives, the technical solution provided by this utility model is as follows:

[0006] A heat-shrinkable book wrapping machine includes a base plate with a stabilizing component at one end. The stabilizing component secures the book when it is placed on the base plate. Guide rails are provided on both the front and rear sides of the base plate, connected to the base plate via multiple first telescopic rods. The first telescopic rods are vertically positioned. A pressure roller is slidably positioned horizontally between two guide rails. A drive unit for driving the pressure roller is mounted on the guide rails. The stabilizing component includes two symmetrically arranged rotating plates, rotatably connected to the base plate via a third telescopic rod. A pressure plate is slidably positioned horizontally on each rotating plate. Second telescopic rods are fixed to each rotating plate, with their telescopic ends fixedly connected to the pressure plate. The pressure plates on the front and rear sides are connected via a sealing component.

[0007] Specifically, the guide rail is provided with long grooves in the horizontal direction, the roller shaft of the pressure roller is slidably disposed in the long grooves, the drive unit includes a fixed plate and a motor respectively fixed at both ends of the guide rail, one end of the screw is rotatably connected to the fixed plate, the output shaft of the motor is concentrically fixedly connected to the screw, the screw passes through the roller shaft of the pressure roller, the screw is threadedly connected to the roller shaft of the pressure roller, and the pressure roller can rotate outside its roller shaft.

[0008] Specifically, an ear plate is fixed to the end of the bottom plate on one side of the rotating plate, and the ear plate is rotatably connected to the rotating plate on the same side. One end of the third telescopic rod is rotatably connected to the bottom plate, and the other end of the third telescopic rod is rotatably connected to the rotating plate.

[0009] Specifically, the sealing assembly includes a support rod, which is perpendicular to the pressure plate. The support rod is fixedly connected to one end of the pressure plate near the center of the bottom plate. Multiple fourth telescopic rods are fixed on the support rod, which are vertically arranged. A heat sealing rod is arranged below the support rod, which is parallel to the support rod. The lower end of the fourth telescopic rod is fixedly connected to the upper end of the heat sealing rod. A heating tube is fixed inside the heat sealing rod.

[0010] Specifically, the lower end of the heat-sealing rod is a pointed tip.

[0011] Specifically, after the upper end of the heat-sealing rod contacts the lower end of the support rod, the lower end of the heat-sealing rod is located between the two pressure plates.

[0012] Specifically, a fixed rod is fixed on the pressure plate, an elongated groove is provided on the rotating plate, the fixed rod is slidably disposed in the elongated groove, and the telescopic end of the second telescopic rod is fixedly connected to the fixed rod.

[0013] Specifically, the ends of the two guide rails furthest from the rotating plate are fixedly connected by a connecting rod.

[0014] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0015] 1. By using symmetrical rotating plates and pressure plates, and driving the pressure plates to slide horizontally with a second telescopic rod, the book can be quickly clamped and released, avoiding the displacement problems caused by traditional flipping methods. The rotating plates and base plates are rotatably connected by a third telescopic rod, which can adapt to the clamping needs of books of different sizes and enhance the versatility of the equipment.

[0016] 2. The guide rail is height-adjustable via the first telescopic rod. Combined with the screw and motor, it drives the pressure roller to move horizontally, ensuring uniform coverage of the heat-shrink film from the bottom to the top of the book and reducing wrinkles. The pressure roller can rotate freely around its axis, preventing film tearing or shifting due to friction during the lamination process.

[0017] 3. The lower end of the heat-sealing rod is a pointed tip, which, together with the heating tube, performs localized high-temperature melting of the heat-shrinkable film, forming a narrow and strong adhesive seam, avoiding the rough appearance problem caused by traditional wide seams. The downward stroke of the heat-sealing rod can be adjusted by the fourth telescopic rod to ensure that the heat-melting depth of heat-shrinkable films of different thicknesses is consistent, improving the reliability of the seal.

[0018] 4. The support rod and pressure plate are rigidly connected, and the heat-sealing rod moves synchronously with the pressure plate, enabling automatic positioning of the heat-sealing position after film application, reducing manual intervention. Through the timing control of the telescopic rod and motor, the film application, clamp release, and heat-sealing steps are seamlessly connected, significantly improving packaging efficiency.

[0019] 5. By replacing the traditional flipping wrapping with horizontal film covering using pressure rollers, the complexity of mechanical movements and failure rate are reduced, as well as energy consumption and maintenance costs are lowered. Attached Figure Description

[0020] Figure 1 This is a front view of the packaging machine.

[0021] Figure 2 This is a schematic diagram showing the heat-shrink film covering the upper surface of the book after the pressure roller moves.

[0022] Figure 3 This is a top view showing the fit between the pressure roller and the guide rail.

[0023] Figure 4 A top view of the stable component.

[0024] Figure 5 This is a schematic diagram of the cross-sectional structure of the sealing component.

[0025] The components in the attached diagram are named as follows: 1. Base plate, 2. First telescopic rod, 3. Guide rail, 4. Fixing plate, 5. Motor, 6. Screw, 7. Pressure roller, 8. Rotating plate, 9. Long oval groove, 10. Pressure plate, 11. Fixing rod, 12. Second telescopic rod, 13. Third telescopic rod, 14. Ear plate, 15. Heat shrink film, 16. Book, 17. Connecting rod, 18. Support rod, 19. Fourth telescopic rod, 20. Heat sealing rod, 21. Heating tube. Detailed Implementation

[0026] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0027] Example 1: Refer to Figures 1-5 As shown, a heat-shrinkable book wrapping machine includes a base plate 1, with a stabilizing component at one end of the base plate 1. After the book 16 is placed on the base plate 1, the stabilizing component can stably position the book 16.

[0028] Guide rails 3 are provided on both the front and rear sides of the base plate 1. The ends of the two guide rails 3 away from the rotating plate 8 are fixedly connected by connecting rods 17. The guide rails 3 are connected to the base plate 1 by multiple first telescopic rods 2, which are vertically arranged. A pressure roller 7 is slidably arranged in the horizontal direction between the two guide rails 3, and a drive unit for driving the pressure roller 7 is provided on the guide rail 3.

[0029] Specifically, the guide rail 3 has long grooves in the horizontal direction, and the roller shaft of the pressure roller 7 is slidably disposed in the long grooves.

[0030] The drive unit includes a fixed plate 4 and a motor 5, which are respectively fixed at both ends of the guide rail 3. One end of the screw 6 is rotatably connected to the fixed plate 4. The output shaft of the motor 5 is concentrically fixedly connected to the screw 6. The screw 6 passes through the roller shaft of the pressure roller 7 and is threadedly connected to the roller shaft of the pressure roller 7. The pressure roller 7 can rotate outside its roller shaft.

[0031] The stabilizing component includes two rotating plates 8 arranged symmetrically front to back. The rotating plates 8 are rotatably connected to the base plate 1, and the rotating plates 8 and the base plate 1 are connected by a third telescopic rod 13.

[0032] Specifically, an ear plate 14 is fixed to the end of the base plate 1 on one side of the rotating plate 8. The ear plate 14 is rotatably connected to the rotating plate 8 on one side. One end of the third telescopic rod 13 is rotatably connected to the base plate 1, and the other end of the third telescopic rod 13 is rotatably connected to the rotating plate 8.

[0033] A pressure plate 10 is slidably mounted on a rotating plate 8 in the horizontal direction. A second telescopic rod 12 is fixed on the rotating plate 8, and the telescopic end of the second telescopic rod 12 is fixedly connected to the pressure plate 10. Specifically, a fixing rod 11 is fixed on the pressure plate 10, and an elongated groove 9 is provided on the rotating plate 8. The fixing rod 11 is slidably mounted in the elongated groove 9, and the telescopic end of the second telescopic rod 12 is fixedly connected to the fixing rod 11.

[0034] The pressure plates 10 on the front and rear sides are connected by a sealing assembly.

[0035] The sealing assembly includes a support rod 18, which is perpendicular to the pressure plate 10. The support rod 18 is fixedly connected to one end of the pressure plate 10 near the center of the base plate 1. Multiple fourth telescopic rods 19 are fixed on the support rod 18. The fourth telescopic rods 19 are vertically arranged. A heat sealing rod 20 is arranged below the support rod 18. The heat sealing rod 20 is parallel to the support rod 18. The lower end of the fourth telescopic rod 19 is fixedly connected to the upper end of the heat sealing rod 20. A heating tube 21 is fixed inside the heat sealing rod 20.

[0036] After the upper end of the heat-sealing rod 20 contacts the lower end of the support rod 18, the lower end of the heat-sealing rod 20 is located between the two pressure plates 10. When the pressure plates 10 press the book 16, they can prevent the upper end of the heat-sealing rod 20 from contacting the book 16, thus preventing damage to the book 16 caused by contact between the high-temperature heat-sealing rod 20 and the book 16.

[0037] Reference Figure 1 and Figure 2 As shown, when this packaging machine is working, the heat shrink film 15 is placed on the base plate 1, so that the excess heat shrink film 15 protrudes to the left side of the base plate 1 and is located above the pressure roller 7.

[0038] Place the book 16 on the heat shrink film 15 portion on the base plate 1, activate the third telescopic rod 13, and after the third telescopic rod 13 makes the rotating plate 8 horizontal when it rotates, the pressure plate 10 presses the upper end of the book 16, at which time the book 16 is stabilized and pressed tightly against the heat shrink film 15 portion below it.

[0039] Then, the first telescopic rod 2 is started, the guide rail 3 and the pressure roller 7 move upward. After the guide rail 3 and the pressure roller 7 move upward, the motor 5 is started. The motor 5 drives the screw 6 to rotate. When the screw 6 rotates, the pressure roller 7 moves to the right and causes the remaining heat shrink film 15 to cover the upper surface of the book 16.

[0040] When the pressure roller 7 moves to the right, the third telescopic rod 13 is activated, driving the rotating plate 8 to rotate. After the rotating plate 8 rotates, the pressure plate 10 separates from the book 16. When the pressure roller 7 moves to the right side of the book 16, the motor 5 stops working. At this time, both the upper and lower surfaces of the book 16 are covered by the heat-shrink film 15.

[0041] Then, the second telescopic rod 12 is activated. The telescopic end of the second telescopic rod 12 drives the pressure plate 10 to move via the fixed rod 11, bringing the sealing assembly closer to the rotating plate 8. After the sealing assembly approaches the rotating plate 8, the third telescopic rod 13 is activated, causing the rotating plate 8 to rotate to parallel. At this time, the sealing assembly is located on the right side of the book 16. The fourth telescopic rod 19 is activated, driving the heat sealing rod 20 to move downwards. The heat sealing rod 20 squeezes the heat shrink film 15 on the right side of the book 16, causing the heat shrink film 15 on the right side of the book 16 to heat-melt together. After the book 16 is wrapped by the heat shrink film 15, it is placed in a hot air box where hot air is blown onto the heat shrink film 15. The heat shrink film 15 shrinks back and tightly wraps the book 16.

[0042] Example 2: Based on Example 1, referring to... Figure 5 As shown, the lower end of the heat-sealing rod 20 is a pointed tip.

[0043] When the heat sealing rod 20 heat-melts the heat shrink film 15 on the right side of the book 16, the heat-melt adhesive seam of the heat shrink film 15 is small due to the pointed tip of the lower end of the heat sealing rod 20. The heat shrink film 15 shrinks when heated and makes the book 16 look more beautiful after packaging.

[0044] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A heat-shrinkable book wrapping machine, comprising a base plate (1), characterized in that, A stabilizing component is provided at one end of the base plate (1). After the book (16) is placed on the base plate (1), the stabilizing component can stably position the book (16). Guide rails (3) are provided on both the front and rear sides of the base plate (1). The guide rails (3) are connected to the base plate (1) through multiple first telescopic rods (2). The first telescopic rods (2) are set vertically. A pressure roller (7) is slidably arranged in the horizontal direction between the two guide rails (3). A driving unit for driving the pressure roller (7) is provided on the guide rails (3). The stabilizing component includes two rotating plates (8) symmetrically arranged in front and behind. The rotating plates (8) are rotatably connected to the base plate (1). The rotating plates (8) are connected to the base plate (1) through a third telescopic rod (13). A pressure plate (10) is slidably arranged in the horizontal direction on the rotating plates (8). A second telescopic rod (12) is fixed on each of the rotating plates (8). The telescopic end of the second telescopic rod (12) is fixedly connected to the pressure plate (10). The pressure plates (10) on the front and rear sides are connected through a sealing component.

2. The heat-shrinkable book film packaging machine according to claim 1, characterized in that, The guide rail (3) has long grooves in the horizontal direction. The roller shaft of the pressure roller (7) is slidably arranged in the long groove. The drive unit includes a fixing plate (4) and a motor (5) respectively fixed at both ends of the guide rail (3). One end of the screw (6) is rotatably connected to the fixing plate (4). The output shaft of the motor (5) is concentrically fixedly connected to the screw (6). The screw (6) passes through the roller shaft of the pressure roller (7). The screw (6) is threadedly connected to the roller shaft of the pressure roller (7). The pressure roller (7) can rotate outside its roller shaft.

3. The heat-shrinkable book wrapping machine according to claim 1, characterized in that, An ear plate (14) is fixed to the end of the bottom plate (1) on one side of the rotating plate (8). The ear plate (14) is rotatably connected to the rotating plate (8) on one side. One end of the third telescopic rod (13) is rotatably connected to the bottom plate (1), and the other end of the third telescopic rod (13) is rotatably connected to the rotating plate (8).

4. The heat-shrinkable book film packaging machine according to claim 1, characterized in that, The sealing assembly includes a support rod (18), which is perpendicular to the pressure plate (10). The support rod (18) is fixedly connected to one end of the pressure plate (10) near the center of the bottom plate (1). Multiple fourth telescopic rods (19) are fixed on the support rod (18). The fourth telescopic rods (19) are vertically arranged. A heat sealing rod (20) is arranged below the support rod (18). The heat sealing rod (20) is parallel to the support rod (18). The lower end of the fourth telescopic rod (19) is fixedly connected to the upper end of the heat sealing rod (20). A heating tube (21) is fixed inside the heat sealing rod (20).

5. The heat-shrinkable book film packaging machine according to claim 4, characterized in that, The lower end of the heat-sealing rod (20) is a pointed tip.

6. The heat-shrinkable book film packaging machine according to claim 4, characterized in that, After the upper end of the heat sealing rod (20) contacts the lower end of the support rod (18), the lower end of the heat sealing rod (20) is located between the two pressure plates (10).

7. The heat-shrinkable book film packaging machine according to claim 1, characterized in that, A fixing rod (11) is fixed on the pressure plate (10), and an elongated groove (9) is provided on the rotating plate (8). The fixing rod (11) is slidably disposed in the elongated groove (9), and the telescopic end of the second telescopic rod (12) is fixedly connected to the fixing rod (11).

8. The heat-shrinkable book film packaging machine according to claim 1, characterized in that, The ends of the two guide rails (3) away from the rotating plate (8) are fixedly connected by a connecting rod (17).

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