Film feeding and cutting mechanism of film packaging machine

Abstract

The utility model relates to the technical field of film cutting mechanisms, in particular to a film feeding and cutting mechanism of a film packaging machine, which is convenient for fixing and automatically cutting a packaging film, reduces the complexity of manual operation of personnel and improves the use convenience. Comprising a conveying belt and a support installed on the outer side wall of the conveying belt. The air suction box is installed on the outer side wall of the electric heating plate, an air suction port is formed in the bottom end of the air suction box, the electric heating plate and the cutter are both installed on the supporting device, the supporting device is used for driving the electric heating plate and the cutter to move and adjust, and the film placing mechanism is arranged on the support. The film releasing mechanism is used for guiding and conveying the packaging film.

Description

Technical Field

[0001] This utility model relates to the technical field of film cutting mechanisms, and in particular to a film feeding and cutting mechanism for a film packaging machine. Background Technology

[0002] With the rapid development of the packaging industry, the requirements for packaging efficiency and quality are increasing. As an important piece of equipment in the packaging industry, the performance of film packaging machines directly affects production efficiency and product quality.

[0003] Currently, among existing film feeding and cutting mechanisms, such as the patent with authorization announcement number CN219216959U, this utility model discloses a packaging film feeding and cutting mechanism, which includes a base, a column fixedly provided on one side of the top of the base, a connecting arm rotatably provided on the top of one side of the column, and film feeding components fixedly provided on both sides inside the connecting arm. The film feeding components include a drive motor, a rotating shaft and a film feeding roller. Auxiliary components are fixedly provided at both the upper and lower ends of the connecting arm. The auxiliary components include a connecting block and an auxiliary rod.

[0004] However, the agency found that the device was not convenient for automatically cutting the packaging film after use, nor was it convenient for automatically placing the packaging film on the items to be packaged, which increased the complexity of manual operation and reduced the ease of use. Utility Model Content

[0005] To solve the above-mentioned technical problems, this utility model provides a film feeding and cutting mechanism for a film packaging machine that facilitates fixing and automatically cutting the packaging film, reduces the complexity of manual operation, and improves ease of use.

[0006] This utility model discloses a film feeding and cutting mechanism for a film packaging machine, comprising a conveyor belt and a support frame, the support frame being mounted on the outer wall of the conveyor belt; it also includes a support device, a film feeding mechanism, a heating plate, a suction box, and a cutter. The suction box is mounted on the outer wall of the heating plate, and a suction port is provided at the bottom of the suction box. The heating plate and the cutter are both mounted on the support device, which is used to drive the heating plate and the cutter to move and adjust. The film feeding mechanism is mounted on the support frame and is used to guide and convey the packaging film. The item to be packaged is placed at the top of the conveyor belt, and the front end of the packaging film is placed on the heating plate and the bottom of the suction box. By suctioning air into the suction box, the front end of the packaging film is adsorbed and fixed through the suction port. When the item needs to be packaged... During the sealing process, a support device moves the heating plate downwards, which in turn moves the suction box downwards. This allows the suction box to adhere the packaging film to the top of the item. The heating plate then heats the packaging film, causing the front end of the film to adhere to the item. The item is then moved and conveyed by a conveyor belt, which pulls the packaging film to unroll it, thus wrapping the item. After packaging, the support device moves the cutter downwards to contact the packaging film. The cutter is then moved horizontally to cut the packaging film, while the suction box re-adsorbs the front end of the film, facilitating direct use of the packaging film for the next application. This reduces the complexity of manual operation and improves the ease of use of the mechanism.

[0007] Preferably, the support device includes a support plate, a first electric cylinder, a second electric cylinder, a lead screw, and a motor. The support plate is mounted on the inner wall of the bracket. The fixed ends of both the first and second electric cylinders are mounted on the top of the support plate. The moving end of the second electric cylinder is connected to the top of the heating plate, and the moving end of the first electric cylinder is connected to the top of the guide groove. The upper part of the cutter is horizontally slidably mounted on the guide groove. The lead screw is rotatably mounted on the inner wall of the guide groove, and the cutter is screwed onto the lead screw. The motor is mounted on the outer side of the guide groove, and the motor output end is connected to the lead screw. The moving end of the second electric cylinder drives the heating plate to move up and down, allowing the heating plate and the suction box to move up and down for use. The first electric cylinder drives the guide groove to move downward, causing the guide groove to drive the cutter downward to contact the packaging film. Then, the motor drives the lead screw to rotate, and the rotation of the lead screw drives the cutter to move horizontally, thereby cutting the packaging film and improving the ease of use of the mechanism.

[0008] Preferably, the film-unwinding mechanism includes a support roller, a spline, and a guide roller. The rear end of the support roller is rotatably mounted on the inner wall of the support frame. Multiple sets of splines are arranged on the outer wall of the support roller, and multiple sets of guide rollers are rotatably mounted on the inner wall of the support frame. The packaging film roll is fitted onto the outer wall of the support roller. By engaging the packaging film roll with multiple sets of splines, the limiting effect between the packaging film roll and the support roller is improved. Then, the front end of the packaging film is guided and conveyed to the heating plate and below the suction box by multiple sets of guide rollers, thereby fixing the front end of the packaging film in place by the suction box. When the front end of the packaging film is pasted onto the item, the item conveyor pulls the packaging film, thereby causing the packaging film roll to unwind and rotate, driving the support roller to rotate, thus improving the convenience of changing the packaging film roll on the support roller.

[0009] Preferably, it also includes a disc, a third electric cylinder, and a friction block. The disc is installed at the rear end of the support roller, the third electric cylinder is installed on the outer side wall of the bracket, and the friction block is installed on the moving end of the third electric cylinder. The friction block is configured to cooperate with the disc. After the support roller rotates, it drives the disc to rotate. The third electric cylinder drives the friction block to move and contact the disc, so that the friction block provides resistance to the rotation of the support roller through the disc, thereby improving the tension effect of the unwinding of the packaging film and improving the flatness of the packaging film.

[0010] Preferably, it also includes a vacuum pump, which is installed on the outer wall of the support plate and the input end of the vacuum pump is connected to the suction box; the vacuum pump draws air into the suction box, thereby allowing the suction box to adsorb and fix the packaging film.

[0011] Preferably, it also includes multiple sets of guide columns, which are slidably mounted on the support plate, and the bottom ends of the multiple sets of guide columns are respectively connected to the heating plate and the top of the guide groove; thereby improving the stability of the lifting and moving adjustment of the heating plate and the guide groove.

[0012] Preferably, it also includes a fixing element, which is installed at the front end of the support roller; when the packaging film roll is mounted on the support roller, the fixing element is installed at the front end of the support roller to improve the limiting effect on the packaging film roll.

[0013] Compared with the prior art, the beneficial effects of this utility model are as follows: The items to be packaged are placed at the top of the conveyor belt, and the front end of the packaging film is placed at the bottom of the heating plate and the suction box. Air is drawn into the suction box, causing it to adhere and fix the front end of the packaging film through the suction port. When the items need to be sealed, the supporting device moves the heating plate downwards, causing the heating plate to move the suction box downwards, thus allowing the suction box to adhere the packaging film to the top of the items. The heating plate then heats the packaging film, causing the front end of the film to adhere to the items. The conveyor belt then moves and transports the items, pulling the packaging film to unroll it, thus wrapping the items. After packaging, the supporting device moves the cutter downwards to contact the packaging film. The cutter is then moved horizontally to cut the packaging film, and the suction box again adheres to the front end of the packaging film, facilitating direct use of the packaging film for the next application. This reduces the complexity of manual operation and improves the ease of use of the mechanism. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the isometric structure of this utility model;

[0015] Figure 2 This is a partial isometric structural diagram of the connection between the conveyor belt and the support frame, etc.

[0016] Figure 3 This is a partial isometric structural diagram of the connection between the support roller and splines, etc.

[0017] Figure 4 This is a partial isometric structural diagram of the connection between the heating plate and the suction box, etc.

[0018] Figure 5 This is a partial isometric structural diagram showing the connection between the support plate and the vacuum pump, etc.

[0019] Figure 6 This is an isometric structural diagram showing the connection between the third electric cylinder and the friction block, etc.

[0020] The following components are labeled in the attached diagram: 1. Conveyor belt; 2. Support frame; 3. Heating plate; 4. Suction box; 5. Cutter; 6. Support plate; 7. First electric cylinder; 8. Second electric cylinder; 9. Guide groove; 10. Lead screw; 11. Motor; 12. Support roller; 13. Spline; 14. Guide roller; 15. Disc; 16. Third electric cylinder; 17. Friction block; 18. Vacuum pump; 19. Guide column; 20. Fixing component. Detailed Implementation

[0021] To facilitate understanding of this utility model, a more complete description will be given below with reference to the accompanying drawings. This utility model can be implemented in many different forms and is not limited to the embodiments described herein. Rather, these embodiments are provided to make the disclosure of this utility model more thorough and complete. Example 1

[0022] like Figures 1 to 6 As shown, the film feeding and cutting mechanism of the film packaging machine of this utility model includes a conveyor belt 1 and a support 2, the support 2 being installed on the outer wall of the conveyor belt 1; it also includes a support device, a film feeding mechanism, an electric heating plate 3, an air suction box 4, and a cutter 5. The air suction box 4 is installed on the outer wall of the electric heating plate 3, and an air suction port is provided at the bottom of the air suction box 4. The electric heating plate 3 and the cutter 5 are both installed on the support device, which is used to drive the electric heating plate 3 and the cutter 5 to move and adjust. The film feeding mechanism is set on the support 2, and the film feeding mechanism is used to guide and convey the packaging film.

[0023] like Figure 4 and Figure 5 As shown, the support device includes a support plate 6, a first electric cylinder 7, a second electric cylinder 8, a lead screw 10, and a motor 11. The support plate 6 is installed on the inner wall of the bracket 2. The fixed ends of the first electric cylinder 7 and the second electric cylinder 8 are both installed on the top of the support plate 6. The moving end of the second electric cylinder 8 is connected to the top of the heating plate 3. The moving end of the first electric cylinder 7 is connected to the top of the guide groove 9. The upper part of the cutter 5 is horizontally slidably installed on the guide groove 9. The lead screw 10 is rotatably installed on the inner wall of the guide groove 9. The cutter 5 is screwed onto the lead screw 10. The motor 11 is installed on the outer side of the guide groove 9. The output end of the motor 11 is connected to the lead screw 10.

[0024] In this embodiment, the item to be packaged is placed at the top of the conveyor belt 1, and the front end of the packaging film is placed at the bottom of the heating plate 3 and the suction box 4. By sucking air into the suction box 4, the front end of the packaging film is adsorbed and fixed through the air inlet. When the item needs to be sealed, the heating plate 3 is moved downward by the support device, which in turn moves the suction box 4 downward, allowing the suction box 4 to adhere the packaging film to the top of the item. Then, the heating plate 3 heats the packaging film, causing the front end of the packaging film to adhere to the item. The item is then moved and conveyed by the conveyor belt 1. After the item moves, the packaging film is unrolled, thus wrapping the item. After packaging is completed, the cutter 5 is moved downward by the support device to contact the packaging film. Then, the cutter 5 is moved horizontally to cut the packaging film. At the same time, the suction box 4 adsorbs the front end of the packaging film again, making it easy to use the packaging film directly next time, reducing the complexity of manual operation and improving the ease of use of the mechanism. Example 2

[0025] Based on Example 1, such as Figure 2 As shown, the film feeding mechanism includes a support roller 12, a spline 13 and a guide roller 14. The rear end of the support roller 12 is rotatably mounted on the inner wall of the bracket 2. Multiple sets of splines 13 are arranged on the outer wall of the support roller 12, and multiple sets of guide rollers 14 are rotatably mounted on the inner wall of the bracket 2.

[0026] like Figure 6 As shown, it also includes a disc 15, a third electric cylinder 16 and a friction block 17. The disc 15 is installed at the rear end of the support roller 12, the third electric cylinder 16 is installed on the outer side wall of the bracket 2, and the friction block 17 is installed on the moving end of the third electric cylinder 16. The friction block 17 is configured to cooperate with the disc 15.

[0027] like Figure 5 As shown, it also includes a vacuum pump 18, which is installed on the outer wall of the support plate 6, and the input end of the vacuum pump 18 is connected to the suction box 4.

[0028] like Figure 5 As shown, it also includes multiple sets of guide columns 19, which are all slidably mounted on the support plate 6. The bottom ends of the multiple sets of guide columns 19 are respectively connected to the heating plate 3 and the top end of the guide groove 9.

[0029] like Figure 5 As shown, it also includes a fixing member 20, which is installed at the front end of the support roller 12;

[0030] In this embodiment, the heating plate 3 is moved up and down by the moving end of the second electric cylinder 8, so that the heating plate 3 and the suction box 4 can be moved up and down. The guide groove 9 is moved down by the first electric cylinder 7, so that the guide groove 9 drives the cutter 5 to move down and contact the packaging film. Then, the lead screw 10 is rotated by the motor 11. After the lead screw 10 rotates, it drives the cutter 5 to move horizontally, so that the cutter 5 cuts the packaging film, improving the ease of use of the mechanism. The packaging film roll is fitted on the outer wall of the support roller 12. By cooperating with multiple sets of splines 13, the limiting effect between the packaging film roll and the support roller 12 is improved. Then, the front end of the packaging film is guided and transported to the area below the heating plate 3 and the suction box 4 by multiple sets of guide rollers 14, so that the suction box 4 fixes the front end of the packaging film. When the front end of the packaging film is pasted with the item, the item conveyor pulls the packaging film, so that the packaging film roll is unwound and rotated, driving the support roller 12 to rotate, improving the convenience of changing the packaging film roll on the support roller 12.

[0031] This utility model discloses a film packaging machine with a film feeding and cutting mechanism. During operation, the item to be packaged is placed at the top of the conveyor belt 1, and the front end of the packaging film is placed at the bottom of the heating plate 3 and the suction box 4. Air is drawn into the suction box 4, causing it to adhere and fix the front end of the packaging film through the suction port. When sealing the item, the supporting device moves the heating plate 3 downwards, causing the heating plate 3 to move the suction box 4 downwards, thus attaching the packaging film to the top of the item. The heating plate 3 then heats the packaging film, ensuring the front end adheres to the item. The conveyor belt 1 then moves and transports the item, pulling the packaging film to unwind, thus wrapping the item. After packaging, the supporting device moves the cutter 5 downwards to contact the packaging film. The cutter 5 is then moved horizontally to cut the packaging film, while the suction box 4 again adheres to the front end of the packaging film.

[0032] The conveyor belt 1, heating plate 3, first electric cylinder 7, second electric cylinder 8, motor 11, third electric cylinder 16, and vacuum pump 18 of the film feeding and cutting mechanism of the film packaging machine of this utility model are commercially available. Technical personnel in this industry only need to install and operate them according to the accompanying instruction manual, without requiring any creative work from those skilled in the art.

[0033] The above description is only a preferred embodiment of the present utility model. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the technical principles of the present utility model, and these improvements and modifications should also be considered within the protection scope of the present utility model.

Claims

1. A film feeding and cutting mechanism for a film packaging machine, comprising a conveyor belt (1) and a support (2), wherein the support (2) is mounted on the outer wall of the conveyor belt (1); characterized in that, It also includes a support device, a film feeding mechanism, an electric heating plate (3), an air suction box (4) and a cutter (5). The air suction box (4) is installed on the outer wall of the electric heating plate (3), and an air suction port is provided at the bottom of the air suction box (4). The electric heating plate (3) and the cutter (5) are both installed on the support device. The support device is used to drive the electric heating plate (3) and the cutter (5) to move and adjust. The film feeding mechanism is set on the bracket (2). The film feeding mechanism is used to guide and transport the packaging film.

2. The film feeding and cutting mechanism of a film packaging machine as described in claim 1, characterized in that, The support device includes a support plate (6), a first electric cylinder (7), a second electric cylinder (8), a lead screw (10), and a motor (11). The support plate (6) is installed on the inner wall of the bracket (2). The fixed ends of the first electric cylinder (7) and the second electric cylinder (8) are both installed on the top of the support plate (6). The moving end of the second electric cylinder (8) is connected to the top of the heating plate (3). The moving end of the first electric cylinder (7) is connected to the top of the guide groove (9). The upper part of the cutter (5) is horizontally slidably installed on the guide groove (9). The lead screw (10) is rotatably installed on the inner wall of the guide groove (9). The cutter (5) is screwed onto the lead screw (10). The motor (11) is installed on the outer side of the guide groove (9). The output end of the motor (11) is connected to the lead screw (10).

3. The film feeding and cutting mechanism of a film packaging machine as described in claim 1, characterized in that, The film feeding mechanism includes a support roller (12), a spline (13) and a guide roller (14). The rear end of the support roller (12) is rotatably mounted on the inner wall of the bracket (2). Multiple sets of splines (13) are all set on the outer wall of the support roller (12), and multiple sets of guide rollers (14) are rotatably mounted on the inner wall of the bracket (2).

4. The film feeding and cutting mechanism of a film packaging machine as described in claim 3, characterized in that, It also includes a disc (15), a third electric cylinder (16) and a friction block (17). The disc (15) is installed at the rear end of the support roller (12), the third electric cylinder (16) is installed on the outer wall of the bracket (2), and the friction block (17) is installed on the moving end of the third electric cylinder (16). The friction block (17) is configured to cooperate with the disc (15).

5. The film feeding and cutting mechanism of a film packaging machine as described in claim 1, characterized in that, It also includes a vacuum pump (18), which is installed on the outer wall of the support plate (6), and the input end of the vacuum pump (18) is connected to the suction box (4).

6. The film feeding and cutting mechanism of a film packaging machine as described in claim 2, characterized in that, It also includes multiple sets of guide columns (19), which are all slidably installed on the support plate (6). The bottom ends of the multiple sets of guide columns (19) are respectively connected to the top of the heating plate (3) and the guide groove (9).

7. The film feeding and cutting mechanism of a film packaging machine as described in claim 3, characterized in that, It also includes a fastener (20), which is installed at the front end of the support roller (12).

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