Film winding and packaging equipment

By incorporating cylinders and placement trays within the turntable, and combining lifting components with the transmission components of a servo motor, the problem of damage caused by friction between the bottom of goods and the ground during rotation is solved, achieving efficient and low-cost film wrapping packaging.

CN224225443UActive Publication Date: 2026-05-12SHANGHAI ZIHUA FILM TECH CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
SHANGHAI ZIHUA FILM TECH CO LTD
Filing Date
2025-06-20
Publication Date
2026-05-12

AI Technical Summary

Technical Problem

Existing film wrapping equipment suffers damage due to friction between the bottom of the goods and the ground during rotation.

Method used

The system employs a cylinder and a placement tray within the turntable. The cylinder controls the lifting and lowering of the placement tray to prevent the bottom of the goods from contacting the ground. Simultaneously, the lifting assembly and the servo motor's transmission assembly work together to achieve the rotation of the turntable and the coordinated operation of the film assembly, thus completing the wrapping and packaging of the goods.

Benefits of technology

It effectively prevents damage to the bottom of goods from friction with the ground, reduces equipment costs, improves packaging efficiency, ensures uniform and tight wrapping of the film, and provides an all-round protective barrier.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses film winding and packaging equipment, and relates to the field of article packaging, the film winding and packaging equipment comprises a bearing groove formed in the ground and a servo motor arranged in the bearing groove, a rotating disc is embedded in the bearing groove, a rotating shaft of the servo motor is fixed on the rotating disc, an air cylinder is fixed on the inner wall of the bottom of the rotating disc, and the air cylinder is fixed on the inner wall of the bottom of the rotating disc. The inner wall of the rotating disc is sleeved with a containing disc, a telescopic rod of the air cylinder is fixed to the containing disc, a mounting frame is arranged on one side of the containing disc, a thin film assembly is arranged between the mounting frame and the containing disc, a lifting assembly for driving the thin film assembly to move is arranged on the mounting frame, and a transmission assembly is further arranged in the bearing groove. The lifting assembly is connected with the servo motor through a transmission assembly. The air cylinder is started to lift the containing disc, the ground clearance of goods is increased, the bottoms of the goods do not make contact with the ground any more, and therefore friction damage to the goods is avoided.
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Description

Technical Field

[0001] This application relates to the field of article packaging, and in particular to a film wrapping packaging device. Background Technology

[0002] Film packaging equipment is specifically designed to meet the needs of containerized storage, transportation, and mechanized loading and unloading operations. Through automated film wrapping technology, this equipment not only reduces product containerization costs and significantly improves production efficiency, but also effectively prevents damage to goods during handling. Furthermore, it boasts excellent dustproof, moisture-proof, and hygienic properties, providing a comprehensive protective barrier for goods.

[0003] Existing film wrapping equipment places the goods to be wrapped on a turntable, which is driven by a motor to rotate, causing the goods to rotate as well. Simultaneously, a device is installed on one side of the turntable to move the film up and down, allowing the film to wrap and wrap the goods as they rotate.

[0004] To avoid obstructing the movement of factory workers and the operation of forklifts, turntables are often embedded in the ground with their tops flush with the ground. However, during the film wrapping process, the goods come into contact with the ground under their own weight. As the motor drives the turntable to rotate, the bottom of the goods continuously rubs against the ground, causing damage to the goods. Utility Model Content

[0005] To address the problem of goods being damaged due to continuous friction between the bottom of the goods and the ground when the turntable is rotated by a motor, this application provides a film wrapping packaging device.

[0006] The film wrapping packaging equipment provided in this application adopts the following technical solution:

[0007] A film wrapping device includes a receiving groove on the ground and a servo motor disposed inside the receiving groove. A turntable is embedded in the receiving groove, and the shaft of the servo motor is fixed on the turntable. A cylinder is fixed on the bottom inner wall of the turntable, and a placement plate is sleeved on the inner wall of the turntable. The telescopic rod of the cylinder is fixed on the placement plate. An installation frame is provided on one side of the placement plate, and a film assembly is disposed between the installation frame and the placement plate. A lifting assembly for driving the film assembly to move is provided on the installation frame. A transmission assembly is also provided inside the receiving groove, and the lifting assembly is connected to the servo motor through the transmission assembly.

[0008] By employing the above technical solution, the height of the placement tray is adjusted by extending and retracting a cylinder, allowing the goods to be lifted off the ground and preventing bottom friction damage. The inclusion of a film assembly and a lifting assembly enables film wrapping of the goods. A transmission assembly transmits power, allowing the lifting assembly and the turntable to work in tandem to complete the wrapping process.

[0009] Optionally, the cylinder is provided in four groups, and the four groups of cylinders are evenly spaced within the turntable.

[0010] By adopting the above technical solution, the four sets of cylinders are evenly spaced within the turntable, which makes the placement tray more evenly and stably stressed, ensuring that the goods on the placement tray are raised or lowered smoothly.

[0011] Optionally, the lifting assembly includes a reciprocating screw that rotates on the mounting frame, a connecting column fixed on the reciprocating screw, and a nut threadedly connected to the reciprocating screw. The connecting column passes through the mounting frame and rotates on the bottom wall of the receiving groove, and the membrane assembly is fixed on the nut.

[0012] By adopting the above technical solution, the reciprocating screw and nut are used to make the nut move linearly along the reciprocating screw, which drives the film assembly to move up and down to achieve wrapping and packaging of goods.

[0013] Optionally, the film assembly includes a connecting rod fixed to a nut, a placement box fixed to the connecting rod, a mounting plate disposed above the placement box, a rotating shaft rotating inside the placement box, and a channel opened on one side of the placement box. A cutter is disposed inside the placement box, and a cutting assembly for cutting the film is disposed on the placement box. A connecting mechanism is disposed between the mounting plate and the placement box.

[0014] By adopting the above technical solution, the placement box is connected to the nut via a connecting rod, allowing for winding of goods at different heights as the lifting assembly moves. The rotating shaft facilitates the storage and unwinding of the film, while the channel facilitates film extraction. The cutter, in conjunction with the cutting assembly, can promptly cut the film, completing the packaging of the goods. The mounting plate and placement box are connected by a connecting mechanism, facilitating the removal and placement of new film.

[0015] Optionally, the cutting assembly includes a placement slot formed inside the placement box and an electric push rod disposed outside the placement box, wherein the telescopic rod of the electric push rod passes through the placement box and is fixed to the cutter.

[0016] By adopting the above technical solution, the electric push rod can precisely control the cutting action to cut the film, thus solving the inconvenience of manual cutting at a high position.

[0017] Optionally, the connecting mechanism includes a first hole on the mounting plate, a second hole on the top of the placement box, and a bolt. The bolt passes through the first hole and is threaded onto the second hole. The connecting mechanism is provided in four sets, and the four sets of the connecting mechanism are respectively located at the four corners of the connection between the mounting plate and the placement box.

[0018] By adopting the above technical solution, using bolts to pass through the first hole and threadedly connect to the second hole, and with four sets of connection mechanisms set at the four corners of the connection between the mounting plate and the placement box, the mounting plate and the placement box can be stably connected.

[0019] Optionally, the transmission assembly includes a drive wheel fixed on the servo motor shaft and a driven wheel fixed on a connecting column. The drive wheel and the driven wheel are connected by a belt, and the size of the driven wheel is larger than that of the drive wheel.

[0020] By adopting the above technical solution, a servo motor drives the drive wheel to rotate, which in turn drives the driven wheel to rotate via a belt. This causes the connecting column to rotate, thereby driving the lifting assembly to work, achieving linkage between the lifting assembly and the servo motor. Furthermore, the driven wheel is larger than the drive wheel, which reduces speed and increases torque, resulting in the film wrapping the goods more evenly and tightly.

[0021] Optionally, multiple rubber strips are evenly spaced and fixed on the placement tray, and a mounting bracket is fitted on the outer wall of the electric push rod, which is fixed to the placement box.

[0022] By adopting the above technical solution, the rubber strip increases the friction between the goods and the placement tray, making the goods more stable. The mounting bracket enhances the stability of the electric push rod, ensuring its normal operation during work, and thus ensuring that the cutting assembly stably cuts the film.

[0023] In summary, this application includes at least one of the following beneficial technical effects:

[0024] 1. By installing a cylinder and a placement tray inside the turntable, the placement tray can be raised and separated from the bottom surface during packaging, thus avoiding damage caused by continuous friction between the bottom of the goods and the bottom surface;

[0025] 2. The lifting assembly and servo motor are connected via a transmission assembly, enabling simultaneous rotation of the turntable and lifting of the film assembly using a single power source, thus reducing equipment costs;

[0026] 3. The film assembly can realize functions such as film placement and cutting, and can complete the wrapping and packaging of goods more efficiently. Attached Figure Description

[0027] To more clearly illustrate the technical solutions in the embodiments of this application, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0028] Figure 1 This is an installation diagram of the wrapping equipment provided in the embodiments of this application;

[0029] Figure 2 This is a cross-sectional view of the ground provided in the embodiments of this application, used to show the receiving groove, turntable, servo motor and transmission components;

[0030] Figure 3 This is a cross-sectional view of the turntable and placement plate provided in the embodiments of this application, used to show the cylinder;

[0031] Figure 4 This is an exploded view of the connecting column and nut provided in the embodiments of this application, used to illustrate the connection relationship between the thin film assembly and the lifting assembly;

[0032] Figure 5 This is a cross-sectional view of the placement box provided in an embodiment of this application, used to show the rotating shaft and the placement groove.

[0033] Reference numerals: 1. Receiving groove; 2. Servo motor; 3. Turntable; 4. Cylinder; 5. Placement tray; 6. Mounting frame; 7. Membrane assembly; 71. Connecting rod; 72. Placement box; 73. Mounting plate; 74. Rotating shaft; 75. Channel; 76. Cutter; 77. Cutting assembly; 771. Placement groove; 772. Electric push rod; 78. Connecting mechanism; 781. First hole; 782. Second hole; 783. Bolt; 8. Lifting assembly; 81. Reciprocating screw; 82. Connecting column; 83. Nut; 9. Transmission assembly; 91. Driving wheel; 92. Driven wheel; 93. Belt; 10. Rubber strip; 11. Mounting bracket. Detailed Implementation

[0034] The following is in conjunction with the appendix Figure 1-5 This application will be described in further detail.

[0035] This application discloses a film wrapping packaging device.

[0036] Reference Figure 1A film wrapping device includes a turntable 3 and a mounting frame 6 disposed on the ground. The opening of the mounting frame 6 faces the turntable 3, and a film assembly 7 is disposed on the side of the mounting frame 6 facing the turntable 3. A lifting assembly 8 is disposed inside the mounting frame 6 and is fixed to the film assembly 7, thereby enabling the film assembly 7 to move up and down within the mounting frame 6.

[0037] Reference Figure 2 A receiving groove 1 is provided on the ground, and a turntable 3 is embedded in the receiving groove 1, with its top flush with the ground, so that the turntable 3 will not affect the movement of workers or the handling of goods by forklifts. A servo motor 2 is fixed to the bottom wall of the receiving groove 1, and the rotating shaft of the servo motor 2 is fixed to the turntable 3. This allows the servo motor 2 to drive the turntable 3 to rotate.

[0038] Reference Figure 2 A transmission component 9 is also provided in the receiving groove 1, which can convert the power of the servo motor 2 into the power of the lifting component 8. This allows the servo motor 2 to not only drive the turntable 3 to rotate, but also to drive the lifting component 8 to move within the mounting frame 6, thereby driving the film component 7 to move up and down along the mounting frame 6 to achieve the packaging of goods.

[0039] Reference Figure 3 A placement tray 5 is fitted inside the turntable 3, allowing the servo motor 2 to drive the turntable 3 and placement tray 5 to rotate synchronously. The turntable 3 and placement tray 5 are hollow, creating a space between their openings. Furthermore, the height of the placement tray 5 is the same as the height of the opening in the turntable 3. This ensures that the placement tray 5 is flush with the bottom surface, preventing obstruction of worker movement and forklift operation. Multiple rubber strips 10 are evenly spaced and fixed to the placement tray 5. These rubber strips 10 increase the friction between the goods and the tray 5, preventing goods from being thrown out during rotation and affecting the packaging speed.

[0040] Reference Figure 3 A cylinder 4 is fixed on the bottom inner wall of the turntable 3. In this embodiment, four sets of cylinders 4 are provided, and the four sets of cylinders 4 are evenly spaced within the turntable 3. The telescopic rod of the cylinder 4 is fixed to the placement tray 5, and the lifting and lowering of the placement tray 5 is controlled by the extension and retraction of the cylinder 4. In addition, by setting the inner wall size of the opening of the turntable 3 to be the same as the outer wall size of the placement tray 5, it is possible to prevent external impurities from entering the interior of the turntable 3 during the lifting of the placement tray 5, thus affecting the normal use of the cylinder 4.

[0041] When wrapping goods with film, a forklift is used to place the goods on a placement tray 5 with rubber strips 10 fixed on it. The center of gravity of the goods is adjusted so that it is aligned with the rotation center of the placement tray 5 to prevent the goods from being thrown off the tray 5 during rotation. Then, cylinder 4 is activated to raise the placement tray 5, increasing the height of the goods off the ground so that the bottom of the goods no longer contacts the ground, thus preventing friction damage to the goods.

[0042] Reference Figure 4 The lifting assembly 8 includes a reciprocating screw 81, a connecting column 82, and a nut 83. The reciprocating screw 81 rotates within the mounting frame 6, the connecting column 82 is fixed to the reciprocating screw 81, and the nut 83 is threaded onto the reciprocating screw 81. The connecting column 82 passes through the mounting frame 6 and rotates on the bottom wall of the receiving groove 1, serving to support and fix the reciprocating screw 81. The transmission assembly 9 connects the servo motor 2's shaft to the connecting column 82. With the nut 83 cooperating with the reciprocating screw 81, when the connecting column 82 rotates, driving the reciprocating screw 81 to rotate, the nut 83 will move linearly along the reciprocating screw 81, thereby moving the thin film assembly 7 along the mounting frame 6.

[0043] Reference Figure 2 and Figure 4 The transmission assembly 9 includes a fixed driving wheel 91, a driven wheel 92, and a belt 93. The driving wheel 91 is fixed to the shaft of the servo motor 2, and the driven wheel 92 is fixed to the connecting column 82. The driving wheel 91 and the driven wheel 92 are connected by the belt 93. Under the action of the belt 93, the rotation of the servo motor 2 drives the connecting column 82 to rotate, providing a power source for the lifting assembly 8 and ensuring the normal operation of the lifting assembly 8.

[0044] In addition, in this embodiment, the driven wheel 92 is larger than the driving wheel 91. This reduces the moving speed of the film assembly 7, ensuring that the film can evenly and tightly package the goods, thus preventing the goods from being loosely packaged.

[0045] Reference Figure 5 The film assembly 7 includes a connecting rod 71 fixed to a nut 83, a placement box 72 fixed to the connecting rod 71, a mounting plate 73 disposed above the placement box 72, a rotating shaft 74 rotating inside the placement box 72, and a channel 75 formed on one side of the placement box 72. The connecting rod 71 connects the nut 83 and the placement box 72, and its two ends are fixed to the nut 83 and the placement box 72 respectively by welding or bolts 783.

[0046] The film roll is mounted on the rotating shaft 74 and extends out of the placement box 72 through the channel 75. The channel 75 can limit the release of the film. As the goods rotate, the rotating shaft 74 rotates, completing the release of the film.

[0047] A cutter 76 is provided inside the placement box 72, and a cutting assembly 77 for cutting the film is provided on the placement box 72. A connecting mechanism 78 is provided between the mounting plate 73 and the placement box 72, and the film roll can be replaced through the connecting mechanism 78.

[0048] Reference Figure 5 The cutting assembly 77 includes a placement slot 771 and an electric push rod 772. The placement slot 771 is formed on the inner wall of the placement box 72. The electric push rod 772 is disposed outside the placement box 72, and its telescopic rod passes through the placement box 72 and is fixed to the cutter 76. When it is necessary to cut the film, the electric push rod 772 is activated to move the cutter 76 and cut the film.

[0049] Reference Figure 5 The connecting mechanism 78 includes a first hole 781, a second hole 782, and a bolt 783. The first hole 781 is located on the mounting plate 73, and the second hole 782 is located on the top of the placement box 72. The bolt 783 passes through the first hole 781 and is threaded onto the second hole 782, thus securing the mounting plate 73 to the placement box 72. Four sets of connecting mechanisms 78 are provided, each located at one of the four corners of the connection between the mounting plate 73 and the placement box 72. The bolt 783 connection facilitates the disassembly and assembly of the mounting plate 73 and the placement box 72, thereby facilitating the replacement of the film roll.

[0050] Reference Figure 5 An installation bracket 11 is fitted on the outer wall of the electric push rod 772 and is fixed on the placement box 72, which serves to support and fix the electric push rod 772.

[0051] The implementation principle of the film wrapping equipment in this application embodiment is as follows: Goods are placed on the placement tray 5, and the center of gravity of the goods is adjusted. Then, the cylinder 4 is activated to raise the placement tray 5, increasing the height of the goods off the ground so that the bottom of the goods no longer contacts the ground, thus avoiding friction damage. A servo motor 2 drives the turntable 3 to rotate, realizing the rotation of the goods. Simultaneously, the transmission component 9 drives the lifting component 8, enabling the film component 7 to move up and down, thereby achieving the wrapping of the goods.

[0052] Unless otherwise defined, the technical or scientific terms used in this application shall have the ordinary meaning understood by one of ordinary skill in the art to which this application pertains. The terms "first," "second," "third," and similar terms used in this application specification and claims do not indicate any order, quantity, or importance, but are merely used to distinguish different components. The terms "an" or "a" and similar terms do not indicate a quantity limitation, but rather indicate the presence of at least one. The terms "comprising" or "including" and similar terms mean that the elements or objects preceding "comprising" or "including" encompass the elements or objects listed following "comprising" or "including" and their equivalents, and do not exclude other elements or objects. "Above," "below," "left," "right," etc., are used only to indicate relative positional relationships; when the absolute position of the described object changes, the relative positional relationship may also change accordingly.

[0053] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A film wrapping packaging device, characterized in that: The device includes a receiving groove (1) on the ground and a servo motor (2) inside the receiving groove (1). A turntable (3) is embedded in the receiving groove (1). The shaft of the servo motor (2) is fixed on the turntable (3). A cylinder (4) is fixed on the bottom inner wall of the turntable (3). A placement plate (5) is fitted on the inner wall of the turntable (3). The telescopic rod of the cylinder (4) is fixed on the placement plate (5). An installation frame (6) is provided on one side of the placement plate (5). A thin film assembly (7) is provided between the installation frame (6) and the placement plate (5). A lifting assembly (8) for driving the thin film assembly (7) to move is provided on the installation frame (6). A transmission assembly (9) is also provided inside the receiving groove (1). The lifting assembly (8) is connected to the servo motor (2) through the transmission assembly (9).

2. The film wrapping packaging equipment according to claim 1, characterized in that: The cylinder (4) is provided in four groups, and the four groups of cylinders (4) are evenly spaced in the turntable (3).

3. The film wrapping packaging equipment according to claim 1, characterized in that: The lifting assembly (8) includes a reciprocating screw (81) rotating on the mounting frame (6), a connecting column (82) fixed on the reciprocating screw (81), and a nut (83) threaded on the reciprocating screw (81). The connecting column (82) passes through the mounting frame (6) and rotates on the bottom wall of the receiving groove (1). The membrane assembly (7) is fixed on the nut (83).

4. The film wrapping packaging equipment according to claim 3, characterized in that: The film assembly (7) includes a connecting rod (71) fixed on a nut (83), a placement box (72) fixed on the connecting rod (71), a mounting plate (73) disposed above the placement box (72), a rotating shaft (74) rotating inside the placement box (72), and a channel (75) opened on one side of the placement box (72). A cutter (76) is disposed inside the placement box (72), and a cutting assembly (77) for cutting the film is disposed on the placement box (72). A connecting mechanism (78) is disposed between the mounting plate (73) and the placement box (72).

5. A film wrapping packaging device according to claim 4, characterized in that: The cutting assembly (77) includes a placement slot (771) opened in the placement box (72) and an electric push rod (772) disposed outside the placement box (72). The telescopic rod of the electric push rod (772) passes through the placement box (72) and is fixed on the cutter (76).

6. The film wrapping packaging equipment according to claim 4, characterized in that: The connecting mechanism (78) includes a first hole (781) on the mounting plate (73), a second hole (782) on the top of the placement box (72), and a bolt (783). The bolt (783) passes through the first hole (781) and is threaded onto the second hole (782). The connecting mechanism (78) is provided in four sets, and the four sets of the connecting mechanism (78) are respectively provided at the four corners of the connection between the mounting plate (73) and the placement box (72).

7. The film wrapping packaging equipment according to claim 1, characterized in that: The transmission assembly (9) includes a drive wheel (91) fixed on the shaft of the servo motor (2) and a driven wheel (92) fixed on the connecting column (82). The drive wheel (91) and the driven wheel (92) are connected by a belt (93). The size of the driven wheel (92) is larger than that of the drive wheel (91).

8. A film wrapping packaging device according to claim 5, characterized in that: Multiple rubber strips (10) are evenly fixed on the placement tray (5), and an installation frame (11) is fitted on the outer wall of the electric push rod (772), which is fixed on the placement box (72).