CN216915035U - Automatic bag making device for rolled film - Google Patents

Abstract

An automatic bag-making device for rolled film includes a frame, a cutting device, a sealing device, a film roll and a leveling device; a cutting device is fixed on the side of the frame, and the sealing device is arranged on the front of the cutting device. Below, the side of the cutting device is provided with a forming knife, the top of the sealing device is provided with a sealing block, the forming knife is correspondingly arranged with the sealing block, and the bottom of the forming knife is press-fitted with the top of the sealing block, The roll film wound on the roll film material roll passes through the leveling device and passes through the manufacturing machine from between the cutting device and the sealing device. This design can not only complete the cutting and sealing operations at one time through the cutting device and the sealing device, which can effectively improve the production efficiency and yield, but also can tighten the roll film through the guide shaft of the leveling device to avoid wrinkles when the roll film is discharged. Scrap rate in the production process.

Description

A roll film automatic bag making device

technical field

The utility model relates to a bag-making device, in particular to an automatic film-rolling bag-making device, which is particularly suitable for a film-rolling automatic bag-making device that can automatically complete the production of packaging bags.

Background technique

The roll film automatic bag making device is a machine for making various plastic packaging bags or other material packaging bags. Its processing range is various sizes of plastic or other material packaging bags with different specifications ; The production process of packaging bags involves a variety of process steps such as heat sealing and point breaking. In the existing processing methods, different processes are often carried out by production equipment with independent structures, and the connection between processes is carried out manually.

Although this method is mature in technology and simple in production method, it can be adapted to the production of packaging bags of different specifications, but it still has the following defects:

1. The production process is manually connected between processes, which cannot meet the needs of fully automatic production and increases labor costs.

2. Manual operation is prone to errors in the sealing and breaking steps of the packaging bags, resulting in incomplete sealing or incomplete breaking of the packaging bags, low work efficiency and high rejection rate.

SUMMARY OF THE INVENTION

The purpose of the utility model is to overcome the shortcomings of low automatic degree and high rejection rate existing in the prior art, and to provide a fully automatic production roll film automatic bag making device.

For achieving the above purpose, the technical solution of the present utility model is:

An automatic bag-making device for rolled film, the bag-making device comprises: a frame, a cutting device and a sealing device; a cutting device is fixed on the side of the frame, and the sealing device is arranged directly below the cutting device, so The side of the cutting device is provided with a forming knife, the top of the sealing device is provided with a sealing block, the forming knife is correspondingly arranged with the sealing block, and the bottom of the forming knife is press-fitted with the top of the sealing block.

The bag making device also includes a feeding device, which includes: two feeding rollers, a feeding power gear, a feeding driven gear, a pressing block, a plurality of springs and a motor. The two feeding rollers are up and down. The form of parallel arrangement is arranged inside the frame, the feeding roller located above is rotated with the frame through its transmission shaft, and the side of the transmission shaft of the upper feeding roller passes through the shell of the frame and is fixedly connected to the feeding power gear. , the feeding roller located below is arranged inside the pressing block, the pressing block is slidingly matched with the frame in the vertical direction, the feeding roller located below is rotatably matched with the pressing block through its transmission shaft, and the side of the feeding roller located below The transmission shaft of the part passes through the casing of the pressing block and is fixedly connected with the feeding driven gear, the feeding power gear is meshed with the feeding driven gear, and a plurality of springs are fixed at the bottom of the pressing block, and the pressing The tightening block is elastically matched with the bottom plate of the frame through a spring, and the feeding power gear is driven and matched with the power output shaft of the motor through a pulley group.

The cutting device includes a forming knife, a first bracket and a first telescopic device, the first bracket is an L-shaped bracket, the bottom of the first bracket is fixedly connected with the top of the frame, and the side of the first bracket is It is fixedly connected to the side of the first telescopic device, and the telescopic rod of the first telescopic device is provided with a forming knife, and the forming knife includes a forming knife blade, an upper pressure plate and a rodless cylinder. Rod cylinder, a forming knife blade is fixed on the side of the rodless cylinder piston, the forming knife blade is arranged at the far frame end of the rodless cylinder piston, and a discharging table is provided directly under the upper pressure plate, and the outlet Both ends of the feeding table are fixed on the shell of the frame, the top surface of the discharging table is set at the same height as the bottom of the feeding power gear, the outer edge of the discharging table is provided with a knife feed slot, and the forming knife blade Pass through the upper platen and set correspondingly with the feed slot.

The sealing device includes a sealing block, a second bracket and a second telescopic device, the second bracket is an L-shaped bracket, the top of the second bracket is fixedly connected with the top of the rack bottom plate, and the side of the second bracket is The second telescopic device is fixedly connected to the side of the second telescopic device. The second telescopic device is fixedly connected to the bottom of the sealing block through the telescopic rod at the top. The top of the sealing block is provided with a heating and pressing strip. A long strip-shaped hot-pressing strip hole is also opened, the heating-pressing strip passes through the hot-pressing strip hole and then press-fits with the upper pressing plate, and the hot-pressing strip hole is arranged between the knife feed slot and the frame.

The bag making device further includes a leveling device, which includes an upper guide shaft support, a lower guide shaft counterweight support, a first guide shaft, a second guide shaft and a third guide shaft, and the upper guide shaft support A lower guide shaft counterweight bracket is arranged directly below the upper guide shaft bracket, a first guide shaft and a second guide shaft are arranged on the top of the upper guide shaft bracket, and the first guide shaft and the second guide shaft are rotatably matched with the upper guide shaft bracket. , the bottom of the lower guide shaft counterweight support is provided with a third guide shaft, the third guide shaft is rotatably matched with the lower guide shaft counterweight support, the first guide shaft, the second guide shaft and the third guide shaft set in the same vertical plane.

The side part of the upper guide shaft bracket is provided with a sliding rod, the lower guide shaft counterweight bracket is provided with a slider, and the slider and the third guide shaft are arranged on different sides of the lower guide shaft counterweight bracket, so The above-mentioned guide shaft bracket is slidably matched with the slider through the sliding rod provided on it.

The bag making device further includes a film roll, the film roll is sleeved on the power output shaft of the roll drive motor, the film roll is rotatably matched with the roll drive motor, and the film roll is rotatably matched with the roll drive motor. A multi-layer roll film is wound on the roll, and the roll film passes through the first guide shaft, the third guide shaft, the second guide shaft and the feeding roller in sequence and passes through the bag making device from between the cutting device and the sealing device.

The lower guide shaft counterweight bracket is also provided with a sensor installation rod, the top of the sensor installation rod is fixedly connected with the lower guide shaft counterweight bracket, and a position sensor is arranged on the sensor installation rod.

A discharge table is arranged between the cutting device and the sealing device. Both ends of the discharge table are fixed on the casing of the frame. The top of the discharge table is set at the same height as the bottom of the feeding power gear. The middle of the discharge table is provided with a long strip hole, the hot press hole is matched with the heat press, the outer edge of the discharge table is provided with a knife feed slot, and the hot press hole is arranged in the Between the feeding roller and the knife feeding groove, the knife feeding groove is arranged corresponding to the forming knife blade.

The frame is also provided with a guide rod, the film roll and the feeding device are set on different sides of the guide rod, and the horizontal position of the guide rod is higher than the bottom of the feeding power gear.

Compared with the prior art, the beneficial effects of the present utility model are:

1. In an automatic bag-making device for roll film of the present invention, the cutting device and the sealing device cooperate with each other to cut and seal the roll film, and the cutting and sealing operations are completed at one time, so that the fracture of the packaging bag can be smooth and the sealing is tight. Avoid the situation that the fracture and the sealing port do not match, which leads to the tight sealing, and improve the production efficiency and yield. Therefore, the design can complete the cutting and sealing operations at one time through the cutting device and the sealing device, thereby effectively improving the production efficiency and yield.

2. The leveling device in the automatic film-rolling bag-making device of the present invention can support the bottom of the film roll upward through the first guide shaft and the second guide shaft, and at the same time drive the third guide through the self-weight of the counterweight bracket of the lower guide shaft. Axially pull down the roll film between the first guide shaft and the second guide shaft. The three guide shafts are arranged in the same vertical plane, so that the roll film can be in a taut state, avoiding wrinkles when the roll film is discharged, resulting in cutting Scrap occurs during and sealing work. Therefore, this design can tighten the roll film through three guide shafts to avoid wrinkles when the roll film is discharged, and effectively reduce the waste rate in the production process.

3. The feeding device in the automatic bag-making device for film rolls of the present invention cooperates with the film roll through feeding rollers arranged in pairs. The linear speed of the surface of the feeding rolls is consistent with the discharge speed of the film rolls. By adjusting the rotational speed of the feeding rolls The film output speed can be adjusted. Therefore, this design can adjust the film discharge speed by adjusting the speed of the feeding roller, which can effectively improve the production accuracy.

4. The position sensor in the automatic bag-making device for film rolls of the present invention can monitor the position of the counterweight bracket of the lower guide shaft. When jam occurs, stop the machine in time to avoid damage to the bag making device. Therefore, the design can detect the discharge of the roll film through the position sensor, avoid damage to the bag making device, and effectively improve the production safety.

Description of drawings

Figure 1 is a schematic structural diagram of the present invention.

FIG. 2 is a schematic structural diagram of the discharging device in FIG. 1 .

FIG. 3 is a perspective view of the discharging device in FIG. 1 .

FIG. 4 is a schematic structural diagram of the leveling device in FIG. 1 .

FIG. 5 is a perspective view of the leveling device of FIG. 1 .

In the figure: frame 1, discharge table 11, guide rod 12, knife feed slot 13, hot pressing strip hole 14, cutting device 2, forming knife 21, first bracket 22, first telescopic device 23, forming knife blade 24 , Upper platen 25, Rodless cylinder 26, Sealing device 3, Sealing block 31, Second bracket 32, Second telescopic device 33, Heating bead 34, Roll film 4, Unwinding device 5, Feeding roller 51, Feeding power gear 52 , feeding driven gear 53, pressing block 54, multiple springs 55, motor 56, pulley group 57, film roll 6, roll drive motor 61, leveling device 7, upper guide shaft bracket 71, lower guide shaft The counterweight bracket 72 , the first guide shaft 73 , the second guide shaft 74 , the third guide shaft 75 , the sliding rod 76 , the sliding block 77 , and the sensor installation rod 78 .

Detailed ways

The present utility model will be described in further detail below in conjunction with the accompanying drawings and specific embodiments.

Referring to Figures 1 to 5, an automatic bag-making device for roll film, the bag-making device includes: a frame 1, a cutting device 2 and a sealing device 3; the side of the frame 1 is fixed with a cutting device 2, so The sealing device 3 is arranged directly below the cutting device 2 , the side of the cutting device 2 is provided with a forming knife 21 , the top of the sealing device 3 is provided with a sealing block 31 , and the forming knife 21 corresponds to the sealing block 31 The bottom of the forming knife 21 is press-fitted with the top of the sealing block 31 .

The bag making device further includes a feeding device 5, and the feeding device 5 includes: two feeding rollers 51, a feeding power gear 52, a feeding driven gear 53, a pressing block 54, a plurality of springs 55 and a motor 56, The two feeding rollers 51 are arranged inside the frame 1 in the form of up and down parallel arrangement, the feeding roller 51 located above is rotated with the frame 1 through its transmission shaft, and the side of the transmission shaft of the feeding roller 51 located above passes through. After passing through the shell of the frame 1, it is fixedly connected with the feeding power gear 52. The feeding roller 51 located below is arranged inside the pressing block 54, and the pressing block 54 slides with the frame 1 in the vertical direction. The feeding roller 51 rotates and cooperates with the pressing block 54 through its transmission shaft. The transmission shaft on the side of the feeding roller 51 located below passes through the casing of the pressing block 54 and is fixedly connected with the feeding driven gear 53. The feeding power gear 52 meshes with the feeding driven gear 53, the bottom of the pressing block 54 is fixed with a plurality of springs 55, the pressing block 54 elastically cooperates with the bottom plate of the frame 1 through the springs 55, and the feeding power gear 52 passes through the pulley. The group 57 is in driving cooperation with the power take-off shaft of the motor 56 .

The cutting device 2 includes a forming knife 21, a first bracket 22 and a first telescopic device 23, the first bracket 22 is an L-shaped bracket, and the bottom of the first bracket 22 is fixedly connected to the top of the frame 1, so The side part of the first bracket 22 is fixedly connected with the side part of the first telescopic device 23 , and a forming knife 21 is provided on the telescopic rod of the first telescopic device 23 , and the forming knife 21 includes a forming knife blade 24 and an upper pressing plate. 25 and a rodless cylinder 26, the top of the upper pressure plate 25 is provided with a rodless cylinder 26, the side of the rodless cylinder 26 piston is fixed with a forming knife blade 24, and the forming knife blade 24 is arranged on the rodless cylinder 26 piston. Far from the 1 end of the frame, a discharge table 11 is arranged directly below the upper pressing plate 25. The two ends of the discharge table 11 are fixed on the shell of the frame 1. The top surface of the discharge table 11 is connected to the feeding table. The bottom of the power gear 52 is set at the same height, the outer edge of the discharge table 11 is provided with a knife feed groove 13 , and the forming knife blade 24 passes through the upper pressing plate 25 and is disposed correspondingly to the knife feed groove 13 .

The sealing device 3 includes a sealing block 31, a second bracket 32 and a second telescopic device 33, the second bracket 32 is an L-shaped bracket, and the top of the second bracket 32 is fixedly connected to the top of the bottom plate of the rack 1, The side part of the second bracket 32 is fixedly connected to the side part of the second telescopic device 33 , and the second telescopic device 33 is fixedly connected to the bottom of the sealing block 31 through the telescopic rod at the top of the second telescopic device 33 , and the top of the sealing block 31 is fixedly connected. A heating bead 34 is provided, and an elongated hot pressing hole 12 is also opened in the middle of the discharging table 11 . The strip hole 12 is arranged between the knife feed slot 13 and the frame 1 .

The bag making device further includes a leveling device 7 , the leveling device 7 includes an upper guide shaft support 71 , a lower guide shaft counterweight support 72 , a first guide shaft 73 , a second guide shaft 74 and a third guide shaft 75 , a lower guide shaft counterweight support 72 is arranged directly below the upper guide shaft support 71, and a first guide shaft 73 and a second guide shaft 74 are arranged on the top of the upper guide shaft support 71. The first guide shaft 73 and the second guide shaft 74 are rotatably matched with the upper guide shaft support 71, the bottom of the lower guide shaft counterweight support 72 is provided with a third guide shaft 75, the third guide shaft 75 and the lower guide shaft counterweight support 72 The first guide shaft 73 , the second guide shaft 74 and the third guide shaft 75 are arranged in the same vertical plane by rotating fit.

The side of the upper guide shaft bracket 71 is provided with a sliding rod 76, the lower guide shaft counterweight bracket 72 is provided with a slider 77, and the slider 77 and the third guide shaft 75 are arranged on the lower guide shaft counterweight bracket. 72, the upper guide shaft bracket 71 is slidably matched with the sliding block 77 through the sliding rod 76 provided thereon.

The bag-making device further includes a film roll 6, which is sleeved on the power output shaft of the roll drive motor 61, and the film roll 6 is rotatably matched with the roll drive motor 61. The film roll 6 is wound with a multi-layer film roll 4 , and the roll film 4 passes through the first guide shaft 73 , the third guide shaft 75 , the second guide shaft 74 and the feeding roller 51 in sequence, and then passes through the cutting device 2 . The bag making device passes through between the sealing device 3 and the sealing device 3 .

The lower guide shaft counterweight bracket 72 is also provided with a sensor installation rod 78 , the top of the sensor installation rod 78 is fixedly connected to the lower guide shaft counterweight bracket 72 , and a position sensor is disposed on the sensor installation rod 78 .

The frame 1 is also provided with a guide rod 12 , the film roll 6 and the unwinding device 5 are set on different sides of the guide rod 12 , and the horizontal position of the guide rod 12 is higher than that of the feeding power gear 52 . bottom.

The principle of the present utility model is described as follows:

In this design, the lower guide shaft counterweight bracket 72 moves downward to tighten the film 4 by its own weight when the film roll 6 is discharged. At the same time, the sensor mounting rod 78 is provided with a position sensor, which detects the counterweight of the lower guide shaft. The position of the support 72 can not only know the discharge situation of the roll film 4 to avoid system failure, but also issue a stop command to the roll drive motor 61 when the lower guide shaft counterweight support 72 reaches the designated position to stop the roll drive motor 61 Rotation , and then control the discharge length of the roll film 4, and indirectly control the final packaging bag specifications.

Example 1:

A roll film automatic bag making device, the bag making device comprises: a frame 1, a cutting device 2 and a sealing device 3; a cutting device 2 is fixed on the side of the frame 1, and the sealing device 3 is arranged on the cutting device 3 Right below the device 2, a forming knife 21 is disposed on the side of the cutting device 2, and a sealing block 31 is disposed on the top of the sealing device 3. The forming knife 21 is disposed corresponding to the sealing block 31, and the forming knife 21 The bottom of the bag is press-fitted with the top of the sealing block 31; the bag making device also includes a discharging device 5, and the discharging device 5 includes: two feeding rollers 51, a feeding power gear 52, a feeding driven gear 53, a pressure The tightening block 54, a plurality of springs 55 and the motor 56, the two feeding rollers 51 are arranged inside the frame 1 in the form of an up and down parallel arrangement, and the feeding roller 51 located above is rotated and matched with the frame 1 through its transmission shaft, The side of the transmission shaft of the upper feeding roller 51 passes through the shell of the frame 1 and is fixedly connected to the feeding power gear 52. The lower feeding roller 51 is arranged inside the pressing block 54, and the pressing block 54 is connected to the machine. The frame 1 is slidably fitted along the vertical direction, the feed roller 51 located below is rotatably matched with the pressing block 54 through its transmission shaft, and the transmission shaft on the side of the feeding roller 51 located below passes through the casing of the pressing block 54 and is connected to the feed roller 54. The driven gear 53 is fixedly connected, the feeding power gear 52 meshes with the feeding driven gear 53 , a plurality of springs 55 are fixed at the bottom of the pressing block 54 , and the pressing block 54 is connected to the frame 1 through the springs 55 . The bottom plate is elastically matched, and the feeding power gear 52 is driven and matched with the power output shaft of the motor 56 through the pulley group 57; the cutting device 2 includes a forming knife 21, a first bracket 22 and a first telescopic device 23. The first bracket 22 is an L-shaped bracket, the bottom of the first bracket 22 is fixedly connected to the top of the rack 1, the side of the first bracket 22 is fixedly connected to the side of the first telescopic device 23, the first telescopic device 23 is provided with a forming knife 21 on the telescopic rod. The forming knife 21 includes a forming knife blade 24, an upper pressure plate 25 and a rodless cylinder 26. The top of the upper pressure plate 25 is provided with a rodless cylinder 26. The rodless cylinder 26 A forming knife blade 24 is fixed on the side of the piston, and the forming knife blade 24 is arranged at one end of the rodless cylinder 26 at the far end of the piston frame, and a discharging table 11 is provided directly below the upper pressing plate 25. The discharging table Both ends of 11 are fixed on the shell of the frame 1, the top surface of the discharge table 11 is set at the same height as the bottom of the feeding power gear 52, and the outer edge of the discharge table 11 is provided with a knife feed slot 13, so The forming knife blade 24 passes through the upper pressing plate 25 and is arranged corresponding to the knife feeding slot 13; the sealing device 3 includes a sealing block 31, a second bracket 32 and a second telescopic device 33, and the second bracket 32 is an L-shaped bracket, The top of the second bracket 32 is fixedly connected to the top of the bottom plate of the rack 1, and the side of the second bracket 32 is fixedly connected to the side of the second telescopic device 33. The telescopic rod is fixedly connected to the bottom of the sealing block 31, and the top of the sealing block 31 is provided with There is a heating bead 34, and a long hot-pressing hole 12 is also opened in the middle of the discharging table 11. The strip hole 12 is arranged between the knife feed slot 13 and the frame 1; the bag making device further includes a leveling device 7, and the leveling device 7 includes an upper guide shaft support 71, a lower guide shaft counterweight support 72, a A guide shaft 73 , a second guide shaft 74 and a third guide shaft 75 , a lower guide shaft counterweight support 72 is provided directly below the upper guide shaft support 71 , and a first guide shaft support 71 is provided on the top of the upper guide shaft support 71 A guide shaft 73 and a second guide shaft 74, the first guide shaft 73 and the second guide shaft 74 are rotatably matched with the upper guide shaft bracket 71, and the bottom of the lower guide shaft counterweight bracket 72 is provided with a third guide shaft 75 , the third guide shaft 75 is rotatably matched with the lower guide shaft counterweight bracket 72, the first guide shaft 73, the second guide shaft 74 and the third guide shaft 75 are arranged in the same vertical plane; the upper guide shaft A sliding rod 76 is arranged on the side of the shaft bracket 71 , and a slider 77 is arranged on the lower guide shaft counterweight bracket 72 . On the side, the upper guide shaft bracket 71 is slidably matched with the slider 77 through the sliding rod 76 provided on it; the lower guide shaft counterweight bracket 72 is also provided with a sensor installation rod 78, the top of the sensor installation rod 78 Fixedly connected to the lower guide shaft counterweight bracket 72, the sensor mounting rod 78 is provided with a position sensor.

Example 2:

Example 2 is basically the same as Example 1, except that:

The bag-making device further includes a film roll 6, which is sleeved on the power output shaft of the roll drive motor 61, and the film roll 6 is rotatably matched with the roll drive motor 61. The film roll 6 is wound with a multi-layer film roll 4 , and the roll film 4 passes through the first guide shaft 73 , the third guide shaft 75 , the second guide shaft 74 and the feeding roller 51 in sequence, and then passes through the cutting device 2 . The bag making device passes through between the sealing device 3 and the sealing device 3 .

Example 3:

Example 3 is basically the same as Example 2, except that:

The frame 1 is also provided with a guide rod 12 , the film roll 6 and the unwinding device 5 are set on different sides of the guide rod 12 , and the horizontal position of the guide rod 12 is higher than that of the feeding power gear 52 . bottom.

Claims (9)

1. A roll film automatic bag making device is characterized in that: The bag making device comprises: a frame (1), a cutting device (2) and a sealing device (3); a cutting device (2) is fixed on the side of the frame (1), and the sealing device (3) It is arranged directly below the cutting device (2), the side of the cutting device (2) is provided with a forming knife (21), and the top of the sealing device (3) is provided with a sealing block (31), the forming knife (21) is arranged corresponding to the sealing block (31), and the bottom of the forming knife (21) is press-fitted with the top of the sealing block (31). 2. A kind of automatic bag-making device for roll film according to claim 1, is characterized in that: The bag making device further includes a feeding device (5), and the feeding device (5) includes: two feeding rollers (51), a feeding power gear (52), a feeding driven gear (53), and a pressing block (54), a plurality of springs (55) and a motor (56), the two feeding rollers (51) are arranged inside the frame (1) in the form of an up-down parallel arrangement, and the feeding roller (51) located above passes through the frame (1). Its drive shaft is rotatably matched with the frame (1). The side of the drive shaft of the upper feed roller (51) passes through the shell of the frame (1) and is fixedly connected with the feed power gear (52). The feed roller at the bottom The roller (51) is arranged inside the pressing block (54), the pressing block (54) is slidingly matched with the frame (1) in the vertical direction, and the feeding roller (51) located below is connected to the pressing block (51) through its transmission shaft. The block (54) rotates and cooperates, and the drive shaft on the side of the lower feeding roller (51) passes through the casing of the pressing block (54) and is fixedly connected with the feeding driven gear (53). The feeding power gear (52) ) meshes with the feeding driven gear (53), a plurality of springs (55) are fixed at the bottom of the pressing block (54), and the pressing block (54) is connected to the frame (1) through the springs (55). The bottom plate is elastically matched, and the feeding power gear (52) is driven and matched with the power output shaft of the motor (56) through the pulley group (57). 3. A kind of automatic bag-making device for roll film according to claim 2, is characterized in that: The cutting device (2) comprises a forming knife (21), a first bracket (22) and a first telescopic device (23), the first bracket (22) is an L-shaped bracket, and the first bracket (22) The bottom of the frame is fixedly connected to the top of the frame (1), the side of the first bracket (22) is fixedly connected to the side of the first telescopic device (23), and the telescopic rod of the first telescopic device (23) A forming knife (21) is provided thereon, and the forming knife (21) includes a forming knife blade (24), an upper pressing plate (25) and a rodless cylinder (26), and a rodless cylinder is arranged on the top of the upper pressing plate (25). (26), a forming knife blade (24) is fixed on the side of the piston of the rodless cylinder (26), and the forming knife blade (24) is arranged on the end of the rodless cylinder (26) piston far from the frame (1), A discharging table (11) is arranged directly below the upper pressing plate (25), and both ends of the discharging table (11) are fixed on the shell of the frame (1). The top surface is set at the same height as the bottom of the feeding power gear (52), the outer edge of the discharging table (11) is provided with a knife feeding groove (13), and the forming knife blade (24) passes through the upper pressing plate (25) Set corresponding to the feed slot (13). 4. The automatic bag-making device for film rolls according to claim 3, wherein: The sealing device (3) comprises a sealing block (31), a second bracket (32) and a second telescopic device (33), the second bracket (32) is an L-shaped bracket, and the second bracket (32) The top of the frame (1) is fixedly connected to the top of the bottom plate of the rack (1), and the side of the second bracket (32) is fixedly connected to the side of the second telescopic device (33) through which the second telescopic device (33) passes. The telescopic rod on the top is fixedly connected with the bottom of the sealing block (31), the top of the sealing block (31) is provided with a heating press strip (34), and the middle of the discharging table (11) is also provided with a long strip of heat. A bead hole (14), the heated bead (34) passes through the hot bead hole (14) and then press-fitted with the upper pressing plate (25), and the hot bead hole (14) is arranged between the knife feed slot (13) and the upper platen (25). between racks (1). 5. The automatic bag-making device for roll film according to any one of claims 1 to 4, characterized in that: The bag making device further includes a leveling device (7), and the leveling device (7) includes an upper guide shaft support (71), a lower guide shaft counterweight support (72), a first guide shaft (73), a first guide shaft (73), a second guide shaft Two guide shafts (74) and a third guide shaft (75), a lower guide shaft counterweight support (72) is arranged directly below the upper guide shaft support (71), and the top of the upper guide shaft support (71) A first guide shaft (73) and a second guide shaft (74) are provided, the first guide shaft (73) and the second guide shaft (74) are rotatably matched with the upper guide shaft bracket (71), and the lower guide shaft The bottom of the shaft counterweight bracket (72) is provided with a third guide shaft (75), the third guide shaft (75) is rotatably matched with the lower guide shaft counterweight bracket (72), and the first guide shaft (73) , the second guide shaft (74) and the third guide shaft (75) are arranged in the same vertical plane. 6. The automatic bag-making device for roll film according to claim 5, characterized in that: A sliding rod (76) is arranged on the side of the upper guide shaft bracket (71), and a slider (77) is arranged on the lower guide shaft counterweight bracket (72), and the slider (77) is connected to the third The guide shaft (75) is arranged on the opposite side of the lower guide shaft counterweight bracket (72), and the upper guide shaft bracket (71) is slidably matched with the slider (77) through the sliding rod (76) arranged on the upper guide shaft bracket (71). 7. The automatic bag-making device for film rolls according to claim 6, characterized in that: The bag making device further comprises a film roll (6), the film roll (6) is sleeved on the power output shaft of the roll drive motor (61), and the film roll (6) is connected to the power output shaft of the roll drive motor (61). The roll drive motor (61) rotates and cooperates, the film roll (6) is wound with a multi-layer roll film (4), and the roll film (4) passes through the first guide shaft (73), the third The guide shaft (75), the second guide shaft (74) and the feeding roller (51) pass through the bag making device from between the cutting device (2) and the sealing device (3). 8. The automatic bag-making device for roll film according to claim 7, characterized in that: The lower guide shaft counterweight bracket (72) is further provided with a sensor installation rod (78), the top of the sensor installation rod (78) is fixedly connected with the lower guide shaft counterweight bracket (72), and the sensor installation rod (78) is provided with a position sensor. 9. The automatic bag-making device for film rolls according to claim 8, characterized in that: The frame (1) is also provided with a guide rod (12), the film roll (6) and the discharging device (5) are arranged on different sides of the guide rod (12), and the guide rod ( The horizontal position of 12) is higher than the bottom of the feed power gear (52).

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