Packaging box film covering and conveying device

Abstract

The invention discloses a packaging box film covering and conveying device, and relates to the technical field of packaging box film covering, the packaging box film covering and conveying device comprises a first conveying belt, a second conveying belt and a thermal shrinkage furnace, the second conveying belt penetrates through the thermal shrinkage furnace, and the packaging box film covering and conveying device further comprises a pushing mechanism. By arranging the pushing mechanism and the mounting mechanism, a motor runs to drive a first threaded rod to rotate, and the first threaded rod rotates to drive a pushing seat to move; the seat moves to push the packaging box to move, the packaging box penetrates through the base to move to the second conveying belt, in the process, the packaging box makes contact with a film, the film wraps the outer wall of the packaging box, the two pushing plates get close to each other for displacement operation, and when the packaging box moves to the second conveying belt, the pushing plates move to push the packaging box to be tightly attached together. A plurality of packaging boxes can be conveniently positioned and attached together when entering the protective film, meanwhile, the toothed plates can be conveniently replaced, and the toothed plates with different lengths can be selected, so that the protective film is suitable for different widths of the plurality of packaging boxes which are arranged together.

Description

Technical Field

[0001] The present invention relates to the technical field of box laminating, and specifically to a box laminating conveying device. Background Art

[0002] When laminating and packaging multiple boxes, a conveyor belt transports the boxes that are adhered together to another conveyor belt. At this time, the protective film adheres to the outer wall of the box. Then, the protective film is cut by a sealing and cutting machine, and the box continues to move. The protective film is heat-shrunk by a heat shrink furnace. However, when the box moves from one conveyor belt to another, it is prone to positional deviation, resulting in the deviation of the position of the box entering the protective film, thus affecting the subsequent cutting operation, leading to an unattractive appearance of the box after laminating, and loosening still occurring after the laminating work. In order to achieve the purpose of positioning when the box enters the protective film, a box laminating conveying device is provided. Summary of the Invention

[0003] The purpose of the present invention is to provide a box laminating conveying device in order to achieve the purpose of positioning when the box enters the protective film.

[0004] To achieve the above object, the present invention provides the following technical solution: A box laminating conveying device includes a first conveyor belt, a second conveyor belt, and a heat shrink furnace. The second conveyor belt passes through the heat shrink furnace. A base is provided between the first conveyor belt and the second conveyor belt. Support frames are provided on both sides of the base. A film roller is installed in the inner cavity of the support frame. A guide shaft is fixedly connected below the film roller in the inner cavity of the support frame. The film is wrapped around the outer wall of the box by a pushing mechanism. The pushing mechanism includes a mounting frame. The mounting frame is arranged at one end of the support frame. An electric push rod is installed at the top of the mounting frame. The output end of the electric push rod is connected to a mounting plate. A sealing and cutting head is installed at the bottom of the mounting plate. A movable frame is fixedly connected to one side of the mounting plate. A cross plate is fixedly connected to the top of the support frame. A fixed seat is fixedly connected to one end of the cross plate. A movable plate extending below the fixed seat is slidably connected to the inner wall of the fixed seat. A first spur gear is rotatably connected to the outer wall of the movable plate inside the fixed seat. A second spur gear is fixedly connected to one end of the first spur gear. The second spur gear is in contact with the movable frame.

[0005] As a further solution of the present invention: The pushing mechanism further includes a pushing seat, which is arranged on one side of the movable plate. An electric motor is installed on the outer wall of the pushing seat. On both sides of the electric motor on the outer wall of the pushing seat, limiting rods are symmetrically and fixedly connected. The output end of the electric motor is connected to a first threaded rod. The limiting rods and the first threaded rod penetrate through the movable plate. Inside the pushing seat, pushing plates are symmetrically and slidably connected. The pushing plates extend out of the pushing seat. Inside the pushing seat, a second threaded rod penetrating through the pushing plates is rotatably connected. One end of the second threaded rod is fixedly connected to a third straight gear. The top end of the base is provided with a toothed plate through an installation mechanism. One end of the thin film is fixed to the outer wall of the base through a pressing mechanism.

[0006] As a further solution of the present invention: The pressing mechanism includes a pressing frame, which is slidably connected to the inside of the base and extends out of the base. Inside the base, a fourth straight gear is rotatably connected to the outer wall of the pressing frame. One end of the fourth straight gear is fixedly connected to a ratchet wheel. On one side of the ratchet wheel on the outer wall of the base, a clamping block is rotatably connected. A torsion spring is connected between the clamping block and the base.

[0007] As a further solution of the present invention: The installation mechanism includes a connecting block, which is fixedly connected to the bottom end of the toothed plate. A fixing groove is formed on the outer wall of the connecting block. A connecting groove is formed at the top end of the base. Inside the base, a fixing block extending into the inner cavity of the connecting groove is slidably connected. A spring is connected between the fixing block and the base. Inside the base, a pressing frame penetrating through the fixing block is slidably connected. Inside the base, a third threaded rod penetrating through the pressing frame is rotatably connected. The top end of the third threaded rod is fixedly connected to a rotating block.

[0008] As a further solution of the present invention: The outer wall of the movable plate is provided with a first threaded hole and a limiting hole. The first threaded hole matches the first threaded rod. The outer wall of the limiting rod fits with the inner wall of the limiting hole.

[0009] As a further solution of the present invention: The top end of the toothed plate is provided with a third tooth groove, which meshes with the third straight gear. External threads are symmetrically arranged on the outer wall of the second threaded rod. A second threaded hole is formed on the outer wall of the pushing plate, which matches the external threads. The outer wall of the pushing plate fits with the inner wall of the pushing seat.

[0010] As a further solution of the present invention: The outer wall of the movable frame is provided with a second tooth groove, which meshes with the second straight gear. The outer wall of the movable plate is provided with a first tooth groove, which meshes with the first straight gear. The inner wall of the fixed seat fits with the outer wall of the movable plate.

[0011] As a further solution of the present invention: a fourth tooth groove is provided on the outer wall of the pressing frame, and the fourth tooth groove is engaged with the fourth spur gear.

[0012] As a further solution of the present invention: the outer wall of the connecting block is fitted with the inner wall of the connecting groove, and one end outer wall of the fixing block is fitted with the inner wall of the fixing groove.

[0013] As a further solution of the present invention: a slope is provided at the top of the fixing block, the top of the pressing frame is in contact with the slope, a third threaded hole is provided on the outer wall of the pressing frame, and the third threaded hole is matched with the third threaded rod.

[0014] Compared with the prior art, the beneficial effects of the present invention are: By providing a pushing mechanism and a mounting mechanism, the motor operates to drive the first threaded rod to rotate, and the rotation of the first threaded rod drives the pushing seat to displace; the seat displacement pushes the packaging box to displace, and the packaging box passes through the base and moves to the second conveyor belt. During this process, the packaging box contacts the film, causing the film to wrap around the outer wall of the packaging box. The two pushing plates approach each other for displacement operation. When the packaging box displaces to the second conveyor belt, the displacement of the pushing plate pushes the packaging boxes closely together, facilitating positioning and fitting together when multiple packaging boxes enter the protective film, and at the same time facilitating the replacement of the toothed plate. Toothed plates of different lengths can be selected to adapt to the different widths of multiple packaging boxes arranged together. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 is a structural schematic diagram of the present invention; Figure 2 is a partial cross-sectional view of the support frame of the present invention; Figure 3 is a structural schematic diagram of the movable frame of the present invention; Figure 4 is a cross-sectional view of the fixed seat of the present invention; Figure 5 is a cross-sectional view of the pushing seat of the present invention; Figure 6 is a structural schematic diagram of the base of the present invention; Figure 7 is an installation schematic diagram of the pressing frame of the present invention; Figure 8 is a structural schematic diagram of the ratchet of the present invention; Figure 9 is an installation schematic diagram of the toothed plate of the present invention; Figure 10 is a structural schematic diagram of the fixing block of the present invention.

[0016] In the figure: 1. First conveyor belt; 2. Second conveyor belt; 3. Heat shrinkage furnace; 4. Base; 5. Support frame; 6. Film roller; 7. Pushing mechanism; 701. Mounting frame; 702. Electric push rod; 703. Mounting plate; 704. Sealing and cutting head; 705. Movable frame; 706. Horizontal plate; 707. Fixed seat; 708. Movable plate; 709. First straight gear; 710. Second straight gear; 711. Pushing seat; 712. Limit rod; 713. Motor; 714. First threaded rod; 715. Pushing plate; 716. Second threaded rod; 717. Third straight gear; 718. Toothed plate; 8. Pressing mechanism; 801. Pressing frame; 802. Fourth straight gear; 803. Ratchet; 804. Block; 805. Torsion spring; 9. Mounting mechanism; 901. Connecting block; 902. Fixed groove; 903. Connecting groove; 904. Fixed block; 905. Spring; 906. Pressing-down frame; 907. Third threaded rod; 908. Rotating block; 10. Guide shaft. Detailed implementation manners

[0017] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0018] In the description of the present invention, it should be noted that the orientation or positional relationship indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. is based on the orientation or positional relationship shown in the accompanying drawings, and is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus cannot be understood as a limitation to the present invention. In addition, the terms "first", "second", and "third" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance. In the description of the present invention, it should be noted that unless otherwise clearly defined and limited, the terms "installation", "connection", "connection", and "setting" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the internal communication of two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific situations. Next, the embodiments of the present invention will be described according to the overall structure of the present invention.

[0019] Please refer to Figures 1 to 10, in the embodiment of the present invention, a film laminating and conveying device for a packaging box includes a first conveyor belt 1, a second conveyor belt 2 and a heat shrinkage furnace 3. The second conveyor belt 2 passes through the heat shrinkage furnace 3. A base 4 is arranged between the first conveyor belt 1 and the second conveyor belt 2. Support frames 5 are arranged on both sides of the base 4. A film roller 6 is installed in the inner cavity of the support frame 5. A guide shaft 10 is fixedly connected below the film roller 6 in the inner cavity of the support frame 5. The film is wrapped around the outer wall of the packaging box through a pushing mechanism 7.

[0020] The pushing mechanism 7 includes a mounting frame 701. The mounting frame 701 is arranged at one end of the support frame 5. An electric push rod 702 is installed at the top of the mounting frame 701. The output end of the electric push rod 702 is connected to a mounting plate 703. A sealing and cutting head 704 is installed at the bottom end of the mounting plate 703. A movable frame 705 is fixedly connected to one side of the mounting plate 703. A cross plate 706 is fixedly connected to the top end of the support frame 5. A fixed seat 707 is fixedly connected to one end of the cross plate 706. A movable plate 708 extending below the fixed seat 707 is slidably connected to the inner wall of the fixed seat 707. A first straight gear 709 is rotatably connected to the outer wall of the movable plate 708 inside the fixed seat 707. A second straight gear 710 is fixedly connected to one end of the first straight gear 709. The second straight gear 710 is in contact with the movable frame 705. The pushing mechanism 7 further includes a pushing seat 711. The pushing seat 711 is arranged on one side of the movable plate 708. A motor 713 is installed on the outer wall of the pushing seat 711. Limiting rods 712 are symmetrically and fixedly connected to both sides of the motor 713 on the outer wall of the pushing seat 711. The output end of the motor 713 is connected to a first threaded rod 714. The limiting rods 712 and the first threaded rod 714 penetrate through the movable plate 708. Pushing plates 715 are symmetrically slidably connected inside the pushing seat 711. The pushing plates 715 extend out of the pushing seat 711. A second threaded rod 716 penetrating through the pushing plates 715 is rotatably connected inside the pushing seat 711. A third straight gear 717 is fixedly connected to one end of the second threaded rod 716. A toothed plate 718 is installed on the top end of the base 4 through a mounting mechanism 9. One end of the film is fixed to the outer wall of the base 4 through a pressing mechanism 8.

[0021] In this embodiment: The film on the film roller 6 passes through the guide shaft 10. One end of the film is fixed to one side of the base 4 through the pressing mechanism 8. Multiple packaging boxes are attached together at one end of the first conveyor belt 1 close to the base 4 (such as Figure 2As shown in the figure, the motor 713 can be started at this time. The rotation of the motor 713 drives the first threaded rod 714 to rotate. The rotation of the first threaded rod 714 drives the pushing seat 711 to displace relative to the movable plate 708. The limiting rod 712 limits the movement of the pushing seat 711. The displacement of the pushing seat 711 contacts the packaging box and drives the packaging box to displace. The packaging box passes through the base 4 and moves onto the second conveyor belt 2. During this process, the packaging box contacts the film, causing the film to wrap around the outer wall of the packaging box. At the same time, the displacement of the pushing seat 711 drives the third straight gear 717 to displace. The displacement of the third straight gear 717 contacts the toothed plate 718. The third straight gear 717 displaces along the toothed plate 718 and thus rotates. The rotation of the third straight gear 717 drives the second threaded rod 716 to rotate. The rotation of the second threaded rod 716 drives the two pushing plates 715 to move closer to each other. When the packaging box displaces onto the second conveyor belt 2, the displacement of the pushing plates 715 pushes the packaging boxes tightly together. Then, the pushing seat 711 moves away from the packaging box for resetting. At this time, the electric push rod 702 can be started. The operation of the electric push rod 702 drives the mounting plate 703 to displace. The displacement of the mounting plate 703 drives the sealing and cutting head 704 to displace downward. The sealing and cutting head 704 seals and cuts the film. At the same time, when the mounting plate 703 displaces downward, the displacement of the mounting plate 703 drives the movable frame 705 to displace. The displacement of the movable frame 705 drives the second straight gear 710 to rotate. The rotation of the second straight gear 710 drives the first straight gear 709 to rotate. The rotation of the first straight gear 709 drives the movable plate 708 to displace upward. The displacement of the movable plate 708 drives the pushing seat 711 to displace upward. At this time, the first conveyor belt 1 can be started to drive the next group of packaging boxes to move to one end of the first conveyor belt 1 for subsequent film covering operation, facilitating the positioning and fitting together when multiple packaging boxes enter the protective film.

[0022] Please refer particularly to Figures 6 to 8 , the pressing mechanism 8 includes a pressing frame 801. The pressing frame 801 is slidably connected to the inside of the base 4 and extends out of the base 4. A fourth straight gear 802 is rotatably connected to the outer wall of the pressing frame 801 inside the base 4. One end of the fourth straight gear 802 is fixedly connected to a ratchet 803. A catch 804 is rotatably connected to the outer wall of the base 4 on one side of the ratchet 803. A torsion spring 805 is connected between the catch 804 and the base 4.

[0023] In this embodiment: When clamping one end of the thin film, move one end of the thin film between the pressing frame 801 and the base 4, rotate the ratchet wheel 803, the rotation of the ratchet wheel 803 drives the fourth straight gear 802 to rotate, the rotation of the fourth straight gear 802 drives the pressing frame 801 to displace, and the displacement of the pressing frame 801 presses one end of the thin film against the outer wall of the base 4. Then, the latch 804 is engaged with the ratchet wheel 803 under the action of the torsion of the torsion spring 805, so as to fix the ratchet wheel 803, facilitating the fixing of one end of the thin film on the outer wall of the base 4.

[0024] Please refer particularly to Figures 9 to 10 , the installation mechanism 9 includes a connecting block 901, the connecting block 901 is fixedly connected to the bottom end of the toothed plate 718, a fixing groove 902 is opened on the outer wall of the connecting block 901, a connecting groove 903 is opened on the top end of the base 4, a fixing block 904 extending into the inner cavity of the connecting groove 903 is slidably connected inside the base 4, a spring 905 is connected between the fixing block 904 and the base 4, a pressing frame 906 penetrating through the fixing block 904 is slidably connected inside the base 4, a third threaded rod 907 penetrating through the pressing frame 906 is rotatably connected inside the base 4, and a rotating block 908 is fixedly connected to the top end of the third threaded rod 907.

[0025] In this embodiment: When installing the toothed plate 718, insert the connecting block 901 into the connecting groove 903 until the fixing block 904 is engaged with the fixing groove 902 under the elastic force of the spring 905 to fix the connecting block 901, thereby fixing the toothed plate 718; when disassembling the toothed plate 718, rotate the rotating block 908, the rotation of the rotating block 908 drives the third threaded rod 907 to rotate, the rotation of the third threaded rod 907 drives the pressing frame 906 to displace, and the displacement of the pressing frame 906 pushes the fixing block 904 out of the fixing groove 902 to cancel the fixing of the toothed plate 718, facilitating the rapid installation and disassembly of the toothed plate 718, thereby facilitating the replacement of the toothed plate 718. Toothed plates 718 of different lengths can be selected to adapt to the different widths of multiple packaging boxes arranged together.

[0026] Please refer particularly to Figures 1 to 5 , a first threaded hole and a limiting hole are opened on the outer wall of the movable plate 708, the first threaded hole is matched with the first threaded rod 714, and the outer wall of the limiting rod 712 is attached to the inner wall of the limiting hole.

[0027] In this embodiment: The operation of the motor 713 drives the first threaded rod 714 to rotate, the rotation of the first threaded rod 714 drives the pushing seat 711 to displace relative to the movable plate 708, and the limiting rod 712 slides in the limiting hole to limit the movement of the pushing seat 711.

[0028] Please refer particularly to Figures 1 to 5, a third tooth groove is provided at the top of the tooth plate 718, the third tooth groove meshes with the third spur gear 717, external threads are symmetrically arranged on the outer wall of the second threaded rod 716, a second threaded hole is provided on the outer wall of the push plate 715, the second threaded hole matches the external threads, and the outer wall of the push plate 715 fits against the inner wall of the push seat 711.

[0029] In this embodiment: the displacement of the push seat 711 drives the third spur gear 717 to displace, the third spur gear 717 displaces and contacts the tooth plate 718, the third spur gear 717 displaces along the tooth plate 718 to perform a rotation operation, the rotation of the third spur gear 717 drives the second threaded rod 716 to rotate, and the rotation of the second threaded rod 716 drives the two push plates 715 to approach each other for displacement operation.

[0030] Please refer specifically to Figures 1 to 5 , a second tooth groove is provided on the outer wall of the movable frame 705, the second tooth groove meshes with the second spur gear 710, a first tooth groove is provided on the outer wall of the movable plate 708, the first tooth groove meshes with the first spur gear 709, and the inner wall of the fixed seat 707 fits against the outer wall of the movable plate 708.

[0031] In this embodiment: when the mounting plate 703 displaces downward, the displacement of the mounting plate 703 drives the movable frame 705 to displace, the displacement of the movable frame 705 drives the second spur gear 710 to rotate, the rotation of the second spur gear 710 drives the first spur gear 709 to rotate, and the rotation of the first spur gear 709 drives the movable plate 708 to displace upward.

[0032] Please refer specifically to Figures 6 to 8 , a fourth tooth groove is provided on the outer wall of the pressing frame 801, and the fourth tooth groove meshes with the fourth spur gear 802.

[0033] In this embodiment: rotate the ratchet 803, the rotation of the ratchet 803 drives the fourth spur gear 802 to rotate, the rotation of the fourth spur gear 802 drives the pressing frame 801 to displace, and the displacement of the pressing frame 801 presses one end of the film against the outer wall of the base 4.

[0034] Please refer specifically to Figures 9 to 10 , the outer wall of the connecting block 901 fits against the inner wall of the connecting groove 903, and one end outer wall of the fixing block 904 fits against the inner wall of the fixing groove 902.

[0035] In this embodiment: insert the connecting block 901 into the connecting groove 903 until the fixing block 904 is snapped into the fixing groove 902 under the elastic force of the spring 905 to fix the connecting block 901.

[0036] Please refer specifically to Figures 9 to 10, a bevel surface is provided at the top of the fixed block 904, the top of the pressing frame 906 is in contact with the bevel surface, and a third threaded hole is provided on the outer wall of the pressing frame 906, and the third threaded hole is matched with the third threaded rod 907.

[0037] In this embodiment: Rotate the rotating block 908, the rotation of the rotating block 908 drives the third threaded rod 907 to rotate, the rotation of the third threaded rod 907 drives the pressing frame 906 to displace, and the displacement of the pressing frame 906 pushes the fixed block 904 out of the fixed groove 902.

[0038] The above is only a preferred specific embodiment of the present invention, but the protection scope of the present invention is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present invention, according to the technical solution of the present invention and its inventive concept, makes equivalent substitutions or changes, and should be covered by the protection scope of the present invention.

Claims

1. A packaging box film laminating and conveying device, comprising a first conveyor belt (1), a second conveyor belt (2) and a heat shrinkage furnace (3), characterized in that, The second conveyor belt (2) passes through the heat shrinkage furnace (3). A base (4) is arranged between the first conveyor belt (1) and the second conveyor belt (2). Support frames (5) are arranged on both sides of the base (4). A film roller (6) is installed in the inner cavity of the support frame (5). A guide shaft (10) is fixedly connected below the film roller (6) in the inner cavity of the support frame (5). The film is wrapped around the outer wall of the packaging box through a pushing mechanism (7). The pushing mechanism (7) includes a mounting frame (701). The mounting frame (701) is arranged at one end of the support frame (5). An electric push rod (702) is installed at the top of the mounting frame (701). The output end of the electric push rod (702) is connected to a mounting plate (703). A sealing and cutting head (704) is installed at the bottom end of the mounting plate (703). A movable frame (705) is fixedly connected to one side of the mounting plate (703). A cross plate (706) is fixedly connected to the top of the support frame (5). A fixed seat (707) is fixedly connected to one end of the cross plate (706). A movable plate (708) extending below the fixed seat (707) is slidably connected to the inner wall of the fixed seat (707). A first straight gear (709) is rotatably connected to the outer wall of the movable plate (708) inside the fixed seat (707). A second straight gear (710) is fixedly connected to one end of the first straight gear (709). The second straight gear (710) is in contact with the movable frame (705).

2. The packaging box film laminating and conveying device according to claim 1, characterized in that, The pushing mechanism (7) further includes a pushing seat (711). The pushing seat (711) is arranged on one side of the movable plate (708). A motor (713) is installed on the outer wall of the pushing seat (711). Limiting rods (712) are symmetrically and fixedly connected to both sides of the motor (713) on the outer wall of the pushing seat (711). The output end of the motor (713) is connected to a first threaded rod (714). The limiting rods (712) and the first threaded rod (714) penetrate through the movable plate (708). Pushing plates (715) are symmetrically and slidably connected inside the pushing seat (711). The pushing plates (715) extend out of the pushing seat (711). A second threaded rod (716) penetrating through the pushing plates (715) is rotatably connected inside the pushing seat (711). A third straight gear (717) is fixedly connected to one end of the second threaded rod (716). A toothed plate (718) is installed on the top end of the base (4) through a mounting mechanism (9). One end of the film is fixed to the outer wall of the base (4) through a pressing mechanism (8).

3. A packaging box film laminating and conveying device according to claim 2, wherein, The pressing mechanism (8) includes a pressing frame (801). The pressing frame (801) is slidably connected to the inside of the base (4) and extends out of the base (4). A fourth spur gear (802) is rotatably connected to the outer wall of the pressing frame (801) inside the base (4). One end of the fourth spur gear (802) is fixedly connected to a ratchet wheel (803). A latch (804) is rotatably connected to the outer wall of the base (4) on one side of the ratchet wheel (803). A torsion spring (805) is connected between the latch (804) and the base (4).

4. A packaging box film laminating and conveying device according to claim 3, wherein, The mounting mechanism (9) includes a connecting block (901). The connecting block (901) is fixedly connected to the bottom end of the toothed plate (718). A fixing groove (902) is formed in the outer wall of the connecting block (901). A connecting groove (903) is formed in the top end of the base (4). A fixing block (904) that extends into the inner cavity of the connecting groove (903) is slidably connected inside the base (4). A spring (905) is connected between the fixing block (904) and the base (4). A pressing frame (906) that penetrates the fixing block (904) is slidably connected inside the base (4). A third threaded rod (907) that penetrates the pressing frame (906) is rotatably connected inside the base (4). The top end of the third threaded rod (907) is fixedly connected to a rotating block (908).

5. The packaging box film laminating and conveying device according to claim 2, characterized in that, A first threaded hole and a limiting hole are formed in the outer wall of the movable plate (708). The first threaded hole is matched with the first threaded rod (714). The outer wall of the limiting rod (712) is in fit with the inner wall of the limiting hole.

6. The film laminating and conveying device for a packaging box according to claim 2, wherein, A third tooth groove is formed in the top end of the toothed plate (718). The third tooth groove is meshed with the third spur gear (717). External threads are symmetrically arranged on the outer wall of the second threaded rod (716). A second threaded hole is formed in the outer wall of the pushing plate (715). The second threaded hole is matched with the external threads. The outer wall of the pushing plate (715) is in fit with the inner wall of the pushing seat (711).

7. A packaging box film laminating and conveying device according to claim 2, wherein, A second tooth groove is formed in the outer wall of the movable frame (705). The second tooth groove is meshed with the second spur gear (710). A first tooth groove is formed in the outer wall of the movable plate (708). The first tooth groove is meshed with the first spur gear (709). The inner wall of the fixed seat (707) is in fit with the outer wall of the movable plate (708).

8. A packaging box film laminating and conveying device according to claim 3, characterized in that, A fourth tooth groove is formed in the outer wall of the pressing frame (801). The fourth tooth groove is meshed with the fourth spur gear (802).

9. A film laminating and conveying device for a packaging box according to claim 4, wherein, The outer wall of the connecting block (901) is in fit with the inner wall of the connecting groove (903). One end outer wall of the fixing block (904) is in fit with the inner wall of the fixing groove (902).

10. A packaging box film laminating and conveying device according to claim 4, characterized in that, A slope is provided at the top end of the fixing block (904). The top of the pressing frame (906) is in contact with the slope. A third threaded hole is formed in the outer wall of the pressing frame (906). The third threaded hole is matched with the third threaded rod (907).

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