Stable bag making machine

Abstract

The utility model relates to a stable bag making machine capable of ensuring stable stacking of bags. The stable bag making machine comprises a machine base, a bag cutting mechanism and a bag pressing mechanism, the bag cutting mechanism comprises a cutting tool, the bag pressing mechanism comprises a lower bag pressing rod and an upper bag pressing rod, and a bag ejecting mechanism is arranged between the bag cutting mechanism and the bag pressing mechanism. The bag jacking plate is rotatably installed on the machine base through a connecting shaft, a bag pressing part is arranged at the upper end of the bag jacking plate, and the bag pressing part of the bag jacking plate is pressed on the inner side face of the lower bag pressing rod under the action of a spring; the bag jacking plate driving assembly comprises a pushing piece and a power source for driving the pushing piece to act on the bag jacking plate, and the bag pressing part of the bag jacking plate is far away from the lower bag pressing rod under the action of the pushing piece. According to the stable bag making machine, the bag jacking mechanism is arranged between the bag cutting mechanism and the bag pressing mechanism, after the bag cutting mechanism cuts off bags, the ends of the bags are jacked on the bag pressing mechanism through the bag jacking mechanism, and it is guaranteed that the bags are more stable in the stacking process.

Description

TECHNICAL FIELD

[0001] The utility model relates to a bag making machine, concretely relates to a bag making machine for making plastic bags. BACKGROUND

[0002] The bag making machine is a device for producing bags. Generally, the bag making machine comprises a heat sealing and cutting mechanism and a bag pressing mechanism. The bag pressing mechanism comprises a lower bag pressing rod and an upper bag pressing rod. The lower bag pressing rod and the upper bag pressing rod are used for pressing the bags. The heat sealing and cutting mechanism is used for cutting the pressed bags and simultaneously performing heat sealing, so as to form bags and stack them together. When the bags are stacked to a certain height, a stack of bags is extracted by a mechanical hand. However, during the bag collecting process, as the number of bags between the lower bag pressing rod and the upper bag pressing rod gradually increases, the cut end of the bags may flutter and fold, which causes the cut end to be pressed between the upper and lower bags, thereby affecting the neatness of the folded bags. SUMMARY

[0003] In view of the deficiencies of the prior art, the utility model provides a stable bag making machine capable of ensuring stable stacking of bags.

[0004] The stable bag making machine comprises a machine base, a bag cutting mechanism and a bag pressing mechanism. The bag cutting mechanism comprises a cutting tool. The bag pressing mechanism comprises a lower bag pressing rod and an upper bag pressing rod. A bag lifting mechanism is arranged between the bag cutting mechanism and the bag pressing mechanism. The bag lifting mechanism comprises a bag lifting plate and a bag lifting plate driving assembly. The bag lifting plate is rotatably mounted on the machine base via a connecting shaft. The upper end of the bag lifting plate is provided with a bag pressing portion. The bag pressing portion of the bag lifting plate is pressed against the inner side surface of the lower bag pressing rod under the action of a spring. The bag lifting plate driving assembly comprises a pushing member and a power source for driving the pushing member to act on the bag lifting plate. The bag pressing portion of the bag lifting plate is driven by the pushing member to move away from the lower bag pressing rod.

[0005] A bag inserting mechanism is arranged between the bag cutting mechanism and the bag pressing mechanism. The bag inserting mechanism comprises an inserting plate. The inserting plate is movable downward and capable of inserting the end of a bag between the bag lifting plate and the lower bag pressing rod.

[0006] The pushing member is connected to a connecting rod. The connecting rod is rotatably mounted on the machine base. The connecting rod is in transmission connection with a transmission shaft. The inserting plate is connected to a pulling rod. The pulling rod is slidably arranged in a guide seat. The guide seat is mounted on the machine base. The lower end of the pulling rod is in transmission connection with the transmission shaft. The transmission shaft is in transmission connection with the power source.

[0007] The transmission shaft is connected to a first transmission wheel via an eccentric bearing. The first transmission wheel is connected to a transmission rod. The transmission rod is hinged to a connecting seat on the connecting rod.

[0008] The transmission rod can be replaced by a pneumatic cylinder.

[0009] The drive shaft is connected to the second drive wheel via an eccentric bearing. The second drive wheel is hinged to a connecting member, and the connecting member is connected to a pull rod.

[0010] According to the stable bag making machine provided by this utility model, a top bag mechanism is provided between the bag cutting mechanism and the bag pressing mechanism. After the bag cutting mechanism cuts the bag, the top bag mechanism presses the end of the bag onto the bag pressing mechanism, ensuring that the bag is more stable during the stacking process. Attached Figure Description

[0011] Figure 1 This is a partial perspective view of the present invention;

[0012] Figure 2 This is a partial side view of the present invention;

[0013] Figure 3 This is a schematic diagram of the internal structure of this utility model. Detailed Implementation

[0014] like Figure 1 As shown, this stable bag-making machine includes a base 1, a bag-cutting mechanism, and a bag-pressing mechanism. The bag-cutting mechanism includes a cutting blade 2, and the bag-pressing mechanism includes a lower pressing rod 30 and an upper pressing rod 31. Bags continuously enter between the lower pressing rod 30 and the upper pressing rod 31 of the bag-pressing mechanism and are pressed down by them. Then, the cutting blade 2 of the bag-cutting mechanism cuts off the bags. This cycle repeats, and the bags gradually stack up between the lower pressing rod 30 and the upper pressing rod 31.

[0015] To ensure more stable stacking of bags, a top bag mechanism is installed between the bag cutting mechanism and the bag pressing mechanism, such as... Figure 2 and Figure 3 As shown, the top bag mechanism includes a top bag plate 5 and a top bag plate drive assembly. The top bag plate 5 is rotatably mounted on the base 1 via a connecting shaft 51. The upper end of the top bag plate 5 has a bag pressing part 50. Under the action of a spring 6 (a spring support plate 7 is provided behind the top bag plate 5, and a spring 6 is provided between the spring support plate 7 and the top bag plate 5; of course, the spring 6 here includes a tension spring, which pulls the top bag plate 5), the bag pressing part 50 of the top bag plate 5 acts on the inner side of the lower bag pressing rod 31 (here, " The inner side of the pressure bar 31 includes the downward extension of the pressure bar 31 and other components located below the pressure bar 31, such as components connected to the pressure bar 31 installed below the pressure bar 31, on which the pressure part 50 of the top bag plate 5 acts (and the pressure part 50 of the top bag plate 5 acts on the top bag plate 5). The top bag plate drive assembly includes a pusher 8 and a power source that drives the pusher 8 to act on the top bag plate 5. Under the action of the pusher 8, the pressure part 50 of the top bag plate 5 moves away from the inner side of the pressure bar 31.

[0016] The working principle is as follows: as shown in Figure 3 When the bag is cut off by the cutting tool 2, the bag is stacked between the lower bag pressing rod 30 and the upper bag pressing rod 31, and after the bag is cut off, the power source drives the driving pusher 8 to act on the top bag plate 5, and the top bag plate 5 rotates around the connecting shaft 51, so that the bag pressing part 50 on the top bag plate 5 is away from the inner side of the lower bag pressing rod 31, and the end of the bag falls between the bag pressing part 50 and the lower bag pressing rod 31 and hangs on the inner side of the upper bag pressing rod 31, and when the power source no longer drives the driving pusher 8 to act on the top bag plate 5, the spring 6 acts on the top bag plate 5, and the bag pressing part 50 at the upper end of the top bag plate 5 acts on the inner side of the lower bag pressing rod 31, so that the bag is pressed, and the cycle is repeated, and each time a bag is cut off, the bag is pressed on the inner side of the lower bag pressing rod 31, so that the bag is more stable and more orderly during stacking.

[0017] In order to make the front end of the bag fall faster between the bag pressing part 50 and the lower bag pressing rod 31, Figure 2 As shown in Figure 3 The bag inserting mechanism includes an inserting bag plate 4, which can move up and down and insert the end of the bag between the top bag plate 5 and the lower bag pressing rod 31. By driving the inserting bag plate 4 to move down (the power source can be the same as the power source driving the driving pusher 8, or it can be an independent power source), the end of the bag can be quickly inserted between the top bag plate 5 and the lower bag pressing rod 31, thereby improving the stacking speed of the bag.

[0018] Since the inserting bag plate 4 and the top bag plate 5 need to cooperate (when the top bag plate 5 is opened, the inserting bag plate 4 moves down), in order to synchronously drive the inserting bag plate 4 and the top bag plate 5, the pusher 8 is connected to a connecting rod 80, as shown in Figure 1 The connecting rod 80 is rotatably installed on the machine base 1, and the connecting rod 80 is in transmission connection with the transmission shaft 9; as shown in Figure 1 The inserting bag plate 4 is connected to a pull rod 40, which is slidably arranged in a guide seat 10 installed on the machine base 1, and the lower end of the pull rod 40 is in transmission connection with the transmission shaft 9, and the transmission shaft 9 is in transmission connection with the power source. By driving the transmission shaft 9 to rotate, the connecting rod 80 is driven to rotate, and the pull rod 40 is driven to pull, the connecting rod 80 drives the pusher 8 to rotate, the pusher 8 drives the top bag plate 5 to rotate, and the pull rod 40 drives the inserting bag plate 4 to move up and down, so that one power source can synchronously drive the inserting bag plate 4 and the top bag plate 5 to move, that is, the manufacturing cost is saved, and the synchronism of the inserting bag plate 4 and the top bag plate 5 is improved.

[0019] As shown in Figure 1As shown, the transmission shaft 9 is connected with the first transmission wheel 90 through eccentric bearing, the first transmission wheel 90 is connected with the transmission rod 91, and the transmission rod 91 is hinged with the connecting seat 92 on the connecting rod 80. When the power source drives the transmission shaft 9 to rotate, the transmission shaft 9 can drive the first transmission wheel 90 to move up and down due to the connection of the transmission shaft 9 and the first transmission wheel 90 through the eccentric bearing, and the first transmission wheel 90 can drive the connecting rod 80 to rotate back and forth through the transmission rod 91, thereby driving the pushing member 8 to swing forward and backward around the axis of the connecting rod 80.

[0020] Similarly, the transmission shaft 9 is connected with the second transmission wheel 93 through eccentric bearing, the second transmission wheel 93 is hinged with the connecting member 94, and the connecting member 94 is connected with the pulling rod 40. When the power source drives the transmission shaft 9 to rotate, the transmission shaft 9 can drive the second transmission wheel 93 to move up and down due to the connection of the transmission shaft 9 and the second transmission wheel 93 through the eccentric bearing, and the second transmission wheel 93 can drive the pulling rod 40 to move up and down through the connecting member 94, thereby driving the bag inserting plate 4 to move up and down.

[0021] The transmission rod 91 can be replaced by a gas cylinder. When the machine is stopped, the bag inserting plate 4 is in the upper state, and the top bag plate 5 acts on the lower pressing bag rod 31. At this time, if the bag is to be taken out from between the lower pressing bag rod 30 and the upper pressing bag rod 31, the connecting rod 80 can be driven to rotate by the gas cylinder, so that the pushing member 8 can act on the top bag plate 5 to separate the pressing bag part 50 at the upper end of the top bag plate 5 from the lower pressing bag rod 31, so that the bag can be normally taken out.

[0022] Finally, it is worth mentioning that the front end of the pushing member 8 is provided with a rubber wheel 81, and the pushing member 8 acts on the top bag plate 5 through the rubber wheel 81. Since the rubber wheel 81 can rotate and is made of rubber, the noise is smaller and is not easy to wear.

Claims

1. A stable bag making machine, comprising a machine base (1), a bag cutting mechanism and a bag pressing mechanism, the bag cutting mechanism comprising a cutting tool (2), the bag pressing mechanism comprising a lower bag pressing rod (31) and an upper bag pressing rod (30), a bag top mechanism being arranged between the bag cutting mechanism and the bag pressing mechanism, characterized in that: The top bag mechanism comprises a top bag plate (5) and a top bag plate driving assembly, the top bag plate (5) is rotatably installed on the machine base (1) through a connecting shaft (51), the upper end of the top bag plate (5) is provided with a bag pressing part (50), and the bag pressing part (50) of the top bag plate (5) is pressed on the inner side of the lower bag pressing rod (31) under the action of a spring (6); the top bag plate driving assembly comprises a pushing piece (8) and a power source for driving the pushing piece (8) to act on the top bag plate (5), and the bag pressing part (50) of the top bag plate (5) is driven away from the lower bag pressing rod (31) under the action of the pushing piece (8).

2. A stable bag making machine according to claim 1, characterized in that: A bag inserting mechanism is arranged between the bag cutting mechanism and the bag pressing mechanism, and the bag inserting mechanism comprises an inserting bag plate (4), the inserting bag plate (4) can be moved downward and the end of the bag is inserted between the top bag plate (5) and the lower bag pressing rod (31).

3. A stable bag making machine according to claim 2, characterized in that: The pushing piece (8) is connected to a connecting rod (80), the connecting rod (80) is rotatably installed on the machine base (1), and the connecting rod (80) is in transmission connection with a transmission shaft (9); the inserting bag plate (4) is connected to a pull rod (40), the pull rod (40) is slidably arranged in a guide seat (10), the guide seat (10) is installed on the machine base (1), the lower end of the pull rod (40) is in transmission connection with the transmission shaft (9), and the transmission shaft (9) is in transmission connection with a power source.

4. A stable bag making machine according to claim 3, characterized in that: The transmission shaft (9) is connected with a first transmission wheel (90) through an eccentric bearing, the first transmission wheel (90) is connected with a transmission rod (91), and the transmission rod (91) is hinged to a connecting seat (92) on the connecting rod (80).

5. A stable bag making machine according to claim 4, characterized in that: The transmission rod (91) can be replaced by a cylinder.

6. A stable bag making machine according to claim 3, characterized in that: The transmission shaft (9) is connected with a second transmission wheel (93) through an eccentric bearing, the second transmission wheel (93) is hinged to a connecting piece (94), and the connecting piece (94) is connected with the pull rod (40).

7. A stable bag making machine according to claim 1, characterized in that: The front end of the pushing piece (8) is provided with a rubber wheel (81), and the rubber wheel (81) can act on the top bag plate (5).

Images