Continuous automatic film connecting device capable of being arranged at any position

Abstract

The invention discloses a continuous automatic film connecting device capable of being arranged at any position, and relates to the technical field of bag making and film supplying. The device comprises a film-free detection mechanism used for detecting the state of a film roll; the film roll mechanism comprises two working film rolls; the film drawing mechanism is used for drawing the film roll; the color code mechanism comprises a color code sensor; the film connecting mechanism comprises a first film pushing plate, a first guide rod air cylinder and a second film pushing plate, the first film pushing plate adsorbs the new film adhered with the adhesive tape in a vacuum mode, the first guide rod air cylinder is used for driving the first film pushing plate to move, the new film adhered with the adhesive tape is pressed to the old film located at the position of the second film pushing plate, and the new film is adhered to a tail film of the old film through the adhesive tape; and the film cutting mechanism is used for cutting off the residual section of the old film behind the bonding position of the new film and the old film. On the premise that a bag making and packaging machine does not stop, new and old films can be automatically bonded, so that continuous automatic film connection and film roll replacement are achieved, equipment pause caused by film connection is avoided, and the overall efficiency of the packaging machine is improved.

Description

Technical Field

[0001] The invention relates to the technical field of bag making and film supply, and in particular to a continuous automatic film splicing device capable of splicing films at any position. Background Art

[0002] Currently, most bag-making film supply units on the market require a shutdown to replace a roll of film after each roll is used. This involves removing the film spool from the supply unit, installing a pre-prepared roll in the designated location, then pressing and trimming the leading film end. The next roll is then removed, aligned, and taped securely before the unit can resume operation. This film replacement method causes the production line to pause, impacting the subsequent bag-making and filling operations, and reducing production efficiency. Summary of the Invention

[0003] The main purpose of the present invention is to provide a continuous automatic film splicing device capable of splicing at any position to overcome the problems existing in the prior art.

[0004] In order to solve the above technical problems, the present invention adopts the following technical solutions: A continuous automatic film splicing device capable of joining films at any position, comprising: No film detection mechanism, used to detect the status of the film roll; The film roll mechanism includes two working film rolls; Film pulling mechanism, used for pulling the film roll; A color mark mechanism, including a color mark sensor; The film-joining mechanism includes a first film-pushing plate, a first guide rod cylinder, and a second film-pushing plate. The first film-pushing plate vacuum-absorbs the new film adhered with the tape. The first guide rod cylinder is used to drive the first film-pushing plate to move. The new film adhered with the tape is pressed against the old film located at the second film-pushing plate, and the new film is bonded to the tail film of the old film using the tape. The film cutting mechanism is used to cut off the remaining section of the old film after the new and old films are bonded.

[0005] Furthermore, the film-free detection mechanism, working film roll, film pulling mechanism, color mark mechanism, film splicing mechanism and film cutting mechanism are all installed on the wall panel of the frame, the film cutting mechanism is arranged on the film splicing mechanism, the two film-free detection mechanisms are respectively located on both sides of the film splicing mechanism, the two working film rolls are respectively located at the upper and lower ends of the film splicing mechanism, the film pulling mechanism is arranged on the right side of the film splicing mechanism, and the color mark mechanism is located between the film pulling mechanism and the film splicing mechanism.

[0006] Furthermore, the film-free detection mechanism includes a support shaft, a slide plate and a photoelectric sensor. The support shaft is installed on the wall panel. The slide plate is slidably set on the support shaft and fixed by a hexagonal screw. The photoelectric sensor is fixedly installed on the bottom of the slide plate.

[0007] Furthermore, the film rolling mechanism also includes an air nozzle, an inflatable shaft and a winding core. The inflatable shaft is installed on the wall panel, the winding core is sleeved on the outside of the inflatable shaft, the working film roll is sleeved on the outside of the winding core, and the air nozzle is installed on the end of the inflatable shaft away from the wall panel.

[0008] Furthermore, the film pulling mechanism includes a shell, a servo motor, a motor pulley, a driving pulley, a synchronous belt, a rubber wheel core shaft and a rubber wheel. The servo motor is installed inside the shell, the motor pulley is installed at the output end of the servo motor, the input end of the driving pulley is connected to the motor pulley through the synchronous belt, the output end of the driving pulley is connected to the rubber wheel core shaft, and a plurality of rubber wheels are sleeved on the outside of the rubber wheel core shaft.

[0009] Furthermore, the color mark mechanism also includes a color mark bracket, a guide shaft and a stopper, the color mark bracket is mounted on the wall panel, the guide shaft is mounted on the color mark bracket, the stopper is slidably mounted on the guide shaft, and the color mark sensor is mounted on the stopper.

[0010] Furthermore, the film cutting mechanism includes a cutting knife and a rodless cylinder, the cutting knife is slidably mounted on the rodless cylinder, the rodless cylinder is mounted on a partition, and the partition is mounted on the film splicing rear plate.

[0011] Furthermore, the first film pushing plate is installed on the output end of the first guide rod cylinder, the first guide rod cylinder is installed on the middle support plate, the middle support plate is installed on the film connecting rear plate, and the second film pushing plate is connected to the second guide rod cylinder.

[0012] Furthermore, a silicone layer is provided on the surface of the first membrane pushing plate and the second membrane pushing plate.

[0013] Compared with the prior art, the present invention has the following beneficial effects: (1) Without stopping the bag making and packaging machines, the old and new films can be glued together automatically to achieve continuous automatic film splicing and replace the film rolls, thus avoiding equipment suspension caused by film splicing and improving the overall efficiency of the packaging machine; (2) According to the signal given by the command switch, when the first roll of film runs to any position, the head end of the second roll of film is pasted to the corresponding position of the color mark of the first roll of film, and then the remaining section of the first roll of film is cut off to continuously supply film for the subsequent section. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a schematic diagram of the overall structure of the present invention.

[0015] Figure 2 It is a structural schematic diagram of the film joining mechanism and the film cutting mechanism of the present invention.

[0016] Explanation of the accompanying symbols: 1. Film-free detection mechanism, 2. Working film roll, 3. Film pulling device, 4. Film splicing color mark, 5. Color mark sensor, 6. Film pushing plate, 7. Cylinder, 8. Film pushing plate, 9. Cutting knife, 10. Rodless cylinder, 11. Air nozzle, 12. Air shaft, 13. Winding core, 14. Film splicing module, 15. Fixed plate. DETAILED DESCRIPTION

[0017] The technical solution of the present invention is further described below with reference to the accompanying drawings and embodiments.

[0018] Combine Figures 1 to 2 This embodiment provides a continuous automatic film splicing device capable of any position, comprising: a film absence detection mechanism 1, a film roll mechanism, a film pulling mechanism 3, a color marking mechanism 4, a film splicing mechanism, and a film cutting mechanism. The film absence detection mechanism 1, the working film roll 2, the film pulling mechanism 3, the color marking mechanism 4, the film splicing mechanism, and the film cutting mechanism are all mounted on the wall panels of the frame. The film cutting mechanism is mounted on the film splicing mechanism. Two film absence detection mechanisms 1 are located on either side of the film splicing mechanism, two working film rolls 2 are located at the upper and lower ends of the film splicing mechanism, the film pulling mechanism 3 is located on the right side of the film splicing mechanism, and the color marking mechanism 4 is located between the film pulling mechanism 3 and the film splicing mechanism.

[0019] In this embodiment, a film-free detection mechanism 1 is used to detect the status of the film roll, which includes a support shaft, a slide plate and a photoelectric sensor. The support shaft is installed on the wall panel, the slide plate is slidably set on the support shaft and fixed by a hexagonal screw, and the photoelectric sensor is fixedly installed on the bottom of the slide plate.

[0020] The film roll mechanism includes two working film rolls 2, an air nozzle 11, an inflatable shaft 12 and a roll core 13. The inflatable shaft 12 is installed on the wall panel, the roll core 13 is sleeved on the outside of the inflatable shaft 12, the working film roll 2 is sleeved on the outside of the roll core 13, and the air nozzle 11 is installed on the end of the inflatable shaft 12 away from the wall panel.

[0021] The film pulling mechanism 3 is used to pull the film roll, which includes a shell, a servo motor, a motor pulley, a driving pulley, a synchronous belt, a rubber wheel core shaft and a rubber wheel. The servo motor is installed inside the shell, the motor pulley is installed at the output end of the servo motor, the input end of the driving pulley is connected to the motor pulley through a synchronous belt, the output end of the driving pulley is connected to the rubber wheel core shaft, and multiple rubber wheels are sleeved on the outside of the rubber wheel core shaft.

[0022] The color mark mechanism 4 includes a color mark sensor 5, a color mark bracket, a guide shaft and a stopper. The color mark bracket is mounted on the wall panel, the guide shaft is mounted on the color mark bracket, the stopper is slidably mounted on the guide shaft, and the color mark sensor 5 is mounted on the stopper.

[0023] The film joining mechanism includes a first film pushing plate 6, a first guide rod cylinder 7 and a second film pushing plate 8. The first film pushing plate 6 vacuum absorbs the new film with tape on it. The first guide rod cylinder 7 is used to drive the first film pushing plate 6 to move. The new film with tape on it is pressed toward the old film located at the second film pushing plate 8, and the new film is bonded to the tail film of the old film using tape.

[0024] The film cutting mechanism is used to cut off the remaining section of the old film after the new and old films are bonded. It includes a cutting knife 9 and a rodless cylinder 10. The cutting knife 9 is slidably mounted on the rodless cylinder 10, and the rodless cylinder 10 is mounted on the partition, and the partition is mounted on the rear plate after the film is spliced.

[0025] In this embodiment, the first film pushing plate 6 is installed on the output end of the first guide rod cylinder 7, the first guide rod cylinder 7 is installed on the middle support plate, the middle support plate is installed on the film connecting rear plate, and the second film pushing plate 8 is connected to the second guide rod cylinder.

[0026] Preferably, the surfaces of the first membrane pushing plate 6 and the second membrane pushing plate 8 are both provided with a silicone layer.

[0027] The present invention can realize the following without stopping the machine: 1. After a roll of film is used up, the film-free detection device gives a signal, and the head end of the second roll of film is automatically attached to the tail end of the first roll of film, so as to continuously supply film to the rear section; 2. According to the signal given by the command switch, when the first roll of film runs to any position, the head end of the second roll of film is pasted to the corresponding position of the color mark of the first roll of film, and then the remaining section of the first roll of film is cut off to continuously supply film for the subsequent section.

[0028] Working principle: During normal operation of the bag-making and packaging machine, the film-absence detection mechanism 1 detects that the working film roll 2 is empty and issues a command to replace it with new film. At this point, the film-pulling device 3 slowly pulls the color mark closest to the color mark sensor 5 on the trailing film to the color mark sensor 5, stopping film pulling and beginning the film splicing operation. It should be noted that before the machine can operate normally, the color mark sensor 5 must be adjusted to a film splicing position that is an integer multiple of the bag width.

[0029] Before film splicing, preparations are required. The color mark of the new film is aligned with the gap between the push plate and the fixed plate 15. Under vacuum, the two plates adjust the film's left-right relative position. A wallpaper cutter is then used to cut the new film along the gap. This point represents the end of the new film. A piece of tape, the same length as the film's width, is placed between the new film and the push plate. The non-adhesive side adheres to the push plate and the fixed plate 15, with half the adhesive side adhering to the end of the new film. The other half is vacuum-attached to the first push plate 6, which has a silicone coating on its surface. The film splicing module 14 is then closed and locked. During the actual film splicing process, the first push plate 6, holding the tape (new film), moves toward the second push plate 8 (old film) on the other side under the action of the first guide rod cylinder 7, pressing it together. Driven by the rodless cylinder 10, the tail film is cut after the tape is bonded.

[0030] The air nozzle 11 is then manually pressed to expel the air from the air shaft 12, causing the expansion block to retract, removing the film roll core 13 and replacing it with a new film roll. The new film roll is then removed and its color mark is aligned with the gap between the second film push plate 8 and the fixed plate 15. This sequence of steps is repeated until the film splicing module 14 is closed and locked, awaiting the next film splicing command.

[0031] During normal operation of the bag-making and packaging machine, manual operation of the command button allows the new film to be connected or the old film to be disconnected at any position, depending on the production quantity. After the command is issued, the film connection process is the same as above. The difference is that after the expansion block of the air shaft 12 retracts, the film roll with the remaining film is withdrawn. The new film roll is replaced according to the subsequent process.

[0032] The above description is merely a preferred embodiment of the present invention and does not limit the technical scope of the present invention. Therefore, any minor modifications, equivalent changes and modifications made to the above embodiments based on the technical essence of the present invention still fall within the scope of the technical solution of the present invention.

Claims

1. A continuous automatic film splicing device capable of any position, characterized in that: The device includes: A film-free detection mechanism (1) for detecting the state of the film roll; A film roll mechanism, comprising two working film rolls (2); A film pulling mechanism (3) for pulling the film roll; A color mark mechanism (4), including a color mark sensor (5); The film joining mechanism comprises a first film pushing plate (6), a first guide rod cylinder (7) and a second film pushing plate (8), wherein the first film pushing plate (6) vacuum-absorbs a new film adhered with an adhesive tape, and the first guide rod cylinder (7) is used to drive the first film pushing plate (6) to move, so that the new film adhered with the adhesive tape is pressed toward the old film located at the second film pushing plate (8), and the new film is adhered to the tail film of the old film by using the adhesive tape; and The film cutting mechanism is used to cut off the remaining section of the old film after the new and old films are bonded.

2. The continuous automatic film splicing device capable of any position according to claim 1, characterized in that: The film-free detection mechanism (1), the working film roll (2), the film pulling mechanism (3), the color mark mechanism (4), the film splicing mechanism and the film cutting mechanism are all installed on the wall panel of the frame. The film cutting mechanism is arranged on the film splicing mechanism. The two film-free detection mechanisms (1) are respectively located on both sides of the film splicing mechanism. The two working film rolls (2) are respectively located at the upper end and the lower end of the film splicing mechanism. The film pulling mechanism (3) is arranged on the right side of the film splicing mechanism. The color mark mechanism (4) is located between the film pulling mechanism (3) and the film splicing mechanism.

3. The continuous automatic film splicing device capable of any position according to claim 2, characterized in that: The film-free detection mechanism (1) comprises a support shaft, a slide plate and a photoelectric sensor, wherein the support shaft is mounted on the wall plate, the slide plate is slidably arranged on the support shaft and fixed by a hexagonal screw, and the photoelectric sensor is fixedly mounted on the bottom of the slide plate.

4. The continuous automatic film splicing device capable of any position according to claim 2, characterized in that: The film roll mechanism further comprises an air nozzle (11), an air shaft (12) and a winding core (13); the air shaft (12) is mounted on the wall panel; the winding core (13) is sleeved on the outside of the air shaft (12); the working film roll (2) is sleeved on the outside of the winding core (13); and the air nozzle (11) is mounted on the end of the air shaft (12) away from the wall panel.

5. The continuous automatic film splicing device capable of any position according to claim 2, characterized in that: The film pulling mechanism (3) includes a housing, a servo motor, a motor pulley, a driving pulley, a synchronous belt, a rubber wheel core shaft and a rubber wheel, wherein the servo motor is installed inside the housing, the motor pulley is installed at the output end of the servo motor, the input end of the driving pulley is connected to the motor pulley through the synchronous belt, the output end of the driving pulley is connected to the rubber wheel core shaft, and a plurality of rubber wheels are sleeved on the outside of the rubber wheel core shaft.

6. The continuous automatic film splicing device capable of any position according to claim 2, characterized in that: The color mark mechanism (4) further comprises a color mark bracket, a guide shaft and a stopper, wherein the color mark bracket is mounted on the wall panel, the guide shaft is mounted on the color mark bracket, the stopper is slidably mounted on the guide shaft, and the color mark sensor (5) is mounted on the stopper.

7. The continuous automatic film splicing device capable of any position according to claim 2, characterized in that: The film cutting mechanism comprises a cutting knife (9) and a rodless cylinder (10), wherein the cutting knife (9) is slidably mounted on the rodless cylinder (10), the rodless cylinder (10) is mounted on a partition, and the partition is mounted on a film splicing rear plate.

8. The continuous automatic film splicing device capable of any position according to claim 7, characterized in that: The first film pushing plate (6) is mounted on the output end of the first guide rod cylinder (7), the first guide rod cylinder (7) is mounted on the middle support plate, the middle support plate is mounted on the film connecting rear plate, and the second film pushing plate (8) is connected to the second guide rod cylinder.

9. The continuous automatic film splicing device capable of any position according to claim 8, characterized in that: The surfaces of the first membrane pushing plate (6) and the second membrane pushing plate (8) are both provided with a silica gel layer.

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