Lifting transmission mechanism of a film packaging machine

Abstract

The utility model relates to the field of film packing, specifically disclose a kind of lifting transmission mechanism of film packing machine, including stand column shell, bottom bracket is equipped in the one side below stand column shell;The inside of stand column shell is equipped with driving mechanism, and driving mechanism is equipped with film unwinding mechanism and pressure rod on, and driving mechanism drives film unwinding mechanism and pressure rod to move up and down;Driving mechanism includes first driving component and second driving component, and first driving component is used to drive film unwinding mechanism, and second driving component is used to drive pressure rod;The pressure rod is equipped with pressing plate;The function of automatic compacting goods, automatic packing and automatic film cutting is realized by the double driving mechanism of setting;Two groups of driving components are provided in stand column shell, and driving is separately realized to film cutting mechanism and pressing plate, and the degree of integration is high.In specific film coating process, goods are compacted automatically and quickly, and film coating is carried out, not only save manpower, also greatly improve the goods film coating rate, better applicable to fast-paced packaging demand.

Description

Technical Field

[0001] This utility model belongs to the technical field of film packaging equipment, and in particular relates to a lifting transmission mechanism for a film packaging machine. Background Technology

[0002] Small-sized film wrapping machines have a wide range of applications, especially in the logistics industry. They are used for wrapping goods on pallets and transporting small goods, achieving dustproof, moisture-proof, and damage-proof protection, and improving transportation efficiency. They are also suitable for the outer packaging of products in the food and beverage, electronics, chemical and pharmaceutical, glass and ceramic industries, enhancing both aesthetics and protection.

[0003] Currently, most small film baling machines on the market use an upper-pressure type. The goods to be baled are placed on a rotating turntable below, and a pressure plate above presses the goods firmly. A motor drives the turntable and the goods to rotate, achieving automatic film baling. Existing small film baling machines typically use a pneumatic drive for the upper pressure plate and pressure rod drive mechanism. After the goods are placed on the turntable, the pneumatically driven pressure plate contacts the goods, but manual rotation is still required to press down and firmly compress the goods. This process is complex, requires an external air source, and is inconvenient for moving the baling mechanism. Each pneumatic operation takes about 30 seconds, and frequent manual adjustments are needed during repeated baling, affecting the efficiency of baling goods. Summary of the Invention

[0004] In view of the shortcomings of the prior art, the purpose of this invention is to provide a lifting transmission mechanism for a film packaging machine, which improves the efficiency of placing packaged goods and solves the problems in the prior art.

[0005] This invention provides the following technical solution:

[0006] A lifting transmission mechanism for a film baling machine includes a column housing and a base frame on one side below the column housing;

[0007] The column housing is equipped with a drive mechanism, which includes a film unwinding mechanism and a pressure rod. The drive mechanism drives the film unwinding mechanism and the pressure rod to move up and down.

[0008] The driving mechanism includes a first driving component and a second driving component. The first driving component is used to drive the film unwinding mechanism, and the second driving component is used to drive the pressure bar.

[0009] The pressure rod is equipped with a pressure plate.

[0010] Preferably, the drive mechanism includes a belt and a motor, the motor drives the belt to rotate through a pulley, and a driven pulley is provided at the end of the belt away from the motor.

[0011] Preferably, the interior of the column housing is provided with a guide rail, on which a lower slider and an upper slider are provided. The lower slider is connected to the outer side of the toothed belt, and the other side of the lower slider is connected to the film unwinding mechanism; the upper slider is connected to the outer side of the toothed belt, and the other side of the upper slider is connected to the pressure rod.

[0012] Preferably, the first driving component includes a first motor that drives a first belt to rotate, and the first belt is connected to the lower slider; the second driving component includes a second motor that drives a second belt to rotate, and the second belt is connected to the upper slider.

[0013] Preferably, two guide rails are provided in parallel, and the two guide rails are arranged along the length direction of the column shell.

[0014] Preferably, the pressure plate is disposed at the end of the pressure rod, and a rotating shaft is provided between the pressure plate and the pressure rod, so that the pressure plate and the pressure rod are rotatably disposed.

[0015] Preferably, both the first stepper motor and the second stepper motor are equipped with planetary reducers. The output end of the reducer is provided with a keyway shaft, which drives the toothed belt to rotate. The other end of the toothed belt is also provided with a driven wheel that drives the keyway shaft.

[0016] Preferably, the outer shell of the column is provided with a through groove on the side near the film unwinding mechanism, through which the film unwinding mechanism slides up and down.

[0017] Preferably, position sensors are installed near the top and bottom of the column housing. When the slider approaches the position sensor and reaches its limit stroke, the position sensor feeds back the position information to the controller of the packing machine. The controller then issues a control command to stop the stepper motor. A position sensor is installed above the pressure plate. When the pressure plate approaches the packaged goods, the position sensor feeds back the position information to the controller, which then issues a stop command to the stepper motor.

[0018] Compared with the prior art, the present invention has the following beneficial effects:

[0019] This invention discloses a lifting transmission mechanism for a film packaging machine. Through a dual-drive mechanism, it achieves automatic cargo compression, automatic packaging, and automatic film cutting. Two sets of drive components are installed within the column housing, independently driving the film unwinding and cutting mechanism and the pressure plate, resulting in a high degree of integration. During the actual packaging process, the machine automatically and quickly compresses and wraps the cargo, saving manual labor and significantly increasing the packaging speed, making it better suited to fast-paced packaging needs. Attached Figure Description

[0020] To more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of the present invention and should not be regarded as a limitation of the scope. For those skilled in the art, other related drawings can be obtained from these drawings without creative effort.

[0021] Figure 1 This is a schematic diagram of the transmission mechanism structure of this utility model.

[0022] Figure 2 This is a front view of the transmission mechanism of this utility model.

[0023] Figure 3 This is a schematic diagram of the internal structure of the transmission mechanism of this utility model.

[0024] Figure 4 This is a schematic diagram of the overall structure of the packing machine. Detailed Implementation

[0025] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of the present invention, not all of them. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without creative effort are within the scope of protection of the present invention.

[0026] Therefore, the following detailed description of the embodiments of the invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention. All other embodiments obtained by those skilled in the art based on the embodiments of the invention without inventive effort are within the scope of protection of the invention.

[0027] Furthermore, in this invention, the use of terms such as "first" and "second" is for descriptive purposes only and does not specifically refer to any order or sequence, nor is it intended to limit the invention. They are merely used to distinguish components or operations described using the same technical terms and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Therefore, a feature defined with "first" or "second" may explicitly or implicitly include at least one of those features. Additionally, the technical solutions and features of the various embodiments can be combined with each other, but this must be based on the ability of those skilled in the art to implement them. When the combination of technical solutions is contradictory or impossible to implement, such a combination should be considered non-existent and not within the scope of protection claimed by this invention.

[0028] refer to Figure 1 A lifting transmission mechanism for a film baling machine includes a column housing 31, with a base frame 1 located on one side below the column housing 31. A turntable 2 is located above the base frame 1, and a stepper motor is located below the turntable 2, driving the turntable 2 to rotate. A driving mechanism is located inside the column housing 31, and the driving mechanism includes a film unwinding mechanism 4 and a pressure rod 39. The driving mechanism drives the film unwinding mechanism 4 and the pressure rod 39 to move up and down. The driving mechanism includes a first driving component and a second driving component. The first driving component drives the film unwinding mechanism 4, and the second driving component drives the pressure rod 39. A pressure plate 310 is located on the pressure rod 39. The pressure plate 310 is located at the end of the pressure rod 39, and a rotating shaft is provided between the pressure plate 310 and the pressure rod 39, allowing the pressure plate 310 and the pressure rod 39 to rotate rotatably. The pressure plate 310 is connected to the pressure rod 39 via a damping rotating shaft and can rotate freely within a 360-degree range.

[0029] refer to Figure 2-3 The driving mechanism includes a belt and a motor. The motor drives the belt to rotate via a pulley, and a driven pulley 311 is provided at the end of the belt away from the motor. A guide rail 32 is provided inside the column housing 31. A lower slider 37 and an upper slider 38 are provided on the guide rail 32. The lower slider 37 is connected to the outer side of the toothed belt, and the other side of the lower slider 37 is connected to the film unwinding mechanism 4. The upper slider 38 is connected to the outer side of the toothed belt, and the other side of the upper slider 38 is connected to a pressure rod 39. The first driving component includes a first motor 33, which drives a first belt 35 to rotate. The first belt 35 is connected to the lower slider 37. The second driving component includes a second motor 34, which drives a second belt 36 to rotate. The second belt 36 is connected to the upper slider. The first motor 33 and the second motor 34 are stepper motors or servo motors, etc. The belt is a toothed belt or a V-belt. When using belt drive, the motor is equipped with a pulley, and the driven pulley 311 is also equipped with a pulley. When using toothed belt drive, the motor is equipped with a keyway shaft, and the driven pulley is also equipped with a keyway shaft. The motor can also be driven by a sprocket driving a chain, which in turn drives the lower and upper sliders to move, thus completing the transmission.

[0030] In one possible implementation, the drive mechanism uses a stepper motor. Both the first and second stepper motors are equipped with planetary reducers. The output end of the reducer has a keyway shaft, which drives the toothed belt to rotate. The other end of the toothed belt is also equipped with a driven wheel 311 that drives the keyway shaft. The column housing 31 has a through slot on the side near the film unwinding mechanism 4, through which the film unwinding mechanism 4 slides up and down.

[0031] As one possible implementation method, refer to Figure 4Position sensors are installed near the top and bottom of the column housing 31. When the slider approaches the position sensor and reaches its limit stroke, the position sensor feeds back the position information to the controller of the baling machine (Siemens S7-1200 series PLC or Mitsubishi FX3U series PLC). The controller then issues a control command to stop the stepper motor. A position sensor is installed above the pressure plate 310. When the pressure plate 310 approaches the packaged goods, the spring compresses, and the position sensor sends a signal to the controller, which then sends a stop command to the stepper motor. The position sensor is an inductive proximity switch. When the pressure plate approaches the material, the spring compresses, the proximity switch senses the signal, and sends a stop signal to the controller.

[0032] As one possible implementation, the packaging process control flow of the packaging machine includes: pressure plate descent stage → pressing detection stage → turntable rotation stage → film unwinding mechanism rising stage → film breakage detection stage → reset stage. Each stage is executed sequentially by the controller according to a preset program. The packaging control logic is as follows: 1. Start signal trigger; 2. Photoelectric sensor detects goods; 3. Stepper motor drives pressure plate to descend; 4. After spring compression, proximity switch signal triggers pressure plate to stop pressing; 5. Turntable motor starts; 6. Film unwinding mechanism rises accordingly; 7. Fiber optic sensor detects whether the top of the box has been reached; 8. Film unwinding mechanism performs cutting action; 9. All mechanisms reset. The electrical connection logic is as follows: [PLC]-->[Stepper motor driver]-->[Stepper motor]; [PLC]<--[Photoelectric sensor]; [PLC]<--[Limit switch]; [PLC]-->[Stepper motor driver]-->[Film unwinding mechanism stepper motor]. Specifically, the goods to be packaged are placed on turntable 2. The second stepper motor is started, which drives the upper slider 38 and pressure rod 39 downward via the second toothed belt. When the pressure plate 310 presses the goods, the position sensor above the pressure plate 310 feeds back the position information to the controller of the packaging machine. The controller sends a stop command to the second stepper motor, and the pressure plate 310 stops moving downward. At this time, the pressure plate 310 presses the goods, drawing the film from the film unwinding mechanism 4 and wrapping it around the goods at least once. The stepper motor of turntable 2 is started, and the stepper motor drives the goods to rotate, automatically wrapping the film around the goods to achieve packaging. During the automatic wrapping of the film, the first stepper motor drives the first toothed belt to rotate, and the first toothed belt drives the lower slider 37 to move slowly upward, pressing the goods from top to bottom. The film is wound and rotated on the ground. A fiber optic sensor (model Keyence FS-N11N fiber optic sensor) is installed near the top of the film unwinding mechanism 4. The fiber optic sensor is set vertically to the goods. During the wrapping process, the goods are always within the sensing range of the fiber optic sensor. As the film unwinding mechanism 4 moves upward, the fiber optic sensor moves upward. When the same horizontal plane of the fiber optic sensor is separated from the goods, that is, when the goods are no longer within the illumination range of the fiber optic sensor, the fiber optic sensor sends a stop command to the first stepper motor of the controller. The film unwinding mechanism 4 stops moving, the film unwinding mechanism 4 cuts the film, and the reset switch is activated. The first stepper motor drives the film unwinding mechanism 4 to reset, and the pressure rod 39 and the pressure plate reset to the top of the column housing 31.

[0033] The above description is merely a preferred embodiment of the present invention and is not intended to limit the present invention. For those skilled in the art, the present invention can have various modifications and variations; any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A lifting transmission mechanism for a film packaging machine, characterized in that, Includes a column housing (31), and a base frame (1) is provided on one side below the column housing (31); The column housing (31) is equipped with a drive mechanism inside, and the drive mechanism is equipped with a film unwinding mechanism (4) and a pressure rod (39). The drive mechanism drives the film unwinding mechanism (4) and the pressure rod (39) to move up and down. The driving mechanism includes a first driving component and a second driving component. The first driving component is used to drive the film unwinding mechanism (4), and the second driving component is used to drive the pressure bar (39). The pressure bar (39) is provided with a pressure plate (310).

2. The lifting transmission mechanism of a film packaging machine according to claim 1, characterized in that, The drive mechanism includes a belt and a motor. The motor drives the belt to rotate through a pulley, and a driven pulley (311) is provided at the end of the belt away from the motor.

3. The lifting transmission mechanism of a film packaging machine according to claim 2, characterized in that, The interior of the column housing (31) is provided with a guide rail (32), and the guide rail (32) is provided with a lower slider (37) and an upper slider (38). The lower slider (37) is connected to the outside of the toothed belt, and the other side of the lower slider (37) is connected to the film unwinding mechanism (4); the upper slider (38) is connected to the outside of the toothed belt, and the other side of the upper slider (38) is connected to the pressure rod (39).

4. The lifting transmission mechanism of a film packaging machine according to claim 3, characterized in that, The first driving component includes a first motor (33), which drives a first belt (35) to rotate, and the first belt (35) is connected to a lower slider (37); the second driving component includes a second motor (34), which drives a second belt (36) to rotate, and the second belt (36) is connected to an upper slider (38).

5. The lifting transmission mechanism of a film packaging machine according to claim 3, characterized in that, Two guide rails (32) are provided in parallel, and the two guide rails (32) are arranged along the length direction of the column shell (31).

6. The lifting transmission mechanism of a film packaging machine according to claim 1, characterized in that, The pressure plate (310) is disposed at the end of the pressure rod (39), and a rotating shaft is provided between the pressure plate (310) and the pressure rod (39), and the pressure plate (310) and the pressure rod (39) are rotatably disposed.

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