Packaging bag sealing device

Abstract

The utility model belongs to the technical field of packaging machines, and particularly relates to a packaging bag sealing device. According to the technical scheme, the packaging bag sealing device comprises a bag sealing unit and a bag clamping unit; the bag sealing unit comprises a bag sealing driving mechanism installed on the rack, the bag sealing driving mechanism is provided with two opposite output ends, and a forward sealing heating block and a reverse sealing heating block are installed at the two output ends of the bag sealing driving mechanism respectively. The bag clamping unit comprises a shifting mechanism installed on the rack, the shifting mechanism is provided with two output ends, clamping jaw air cylinders are installed at the two output ends of the shifting mechanism, the two clamping jaw air cylinders are oppositely arranged, and the two clamping jaw air cylinders are located on the lower side of a gap between the forward sealing heating block and the reverse sealing heating block. After the two clamping jaw air cylinders clamp a packaging bag, the packaging bag is parallel to the forward sealing heating block and the reverse sealing heating block. The utility model provides the packaging bag sealing device which ensures reliable bag sealing.

Description

Technical Field

[0001] This utility model belongs to the field of packaging machine technology, and specifically relates to a packaging bag sealing device. Background Technology

[0002] A rice packaging machine is a device used to package rice, and it is widely used in the catering industry.

[0003] Patent application number CN202322348892.1 discloses a rice bag sealing device, including a frame, a transverse moving mechanism mounted on the frame, a clamping mechanism for clamping rice bags mounted on the transverse moving mechanism, and a sealing mechanism for sealing the rice bags mounted on the frame, with the sealing mechanism corresponding to one side of the transverse moving mechanism. A bag dispensing mechanism is provided at the lower part of the frame. This utility model provides a rice bag sealing device that can seal rice bags after they have been filled with rice.

[0004] However, the aforementioned rice sealing device cannot reliably clamp the packaging bag. During the sealing process, the packaging bag is prone to tilting, causing the sealing mechanism to fail to accurately clamp the packaging bag. Utility Model Content

[0005] In order to solve the above-mentioned problems in the existing technology, the purpose of this utility model is to provide a bag sealing device that ensures reliable bag sealing.

[0006] The technical solution adopted in this utility model is as follows:

[0007] A bag sealing device includes a sealing unit and a clamping unit. The sealing unit includes a sealing drive mechanism mounted on a frame, the sealing drive mechanism having two opposing output ends, and a forward sealing heating block and a reverse sealing heating block respectively mounted on the two output ends of the sealing drive mechanism. The clamping unit includes a shifting mechanism mounted on the frame, the shifting mechanism having two output ends, and a clamping cylinder mounted on each of the two output ends of the shifting mechanism. The two clamping cylinders are arranged opposite each other and are located below the gap between the forward sealing heating block and the reverse sealing heating block. After the two clamping cylinders clamp the bag, the bag is parallel to the forward sealing heating block and the reverse sealing heating block respectively.

[0008] The shifting mechanism of this invention moves two gripper cylinders to the precise position. After the two gripper cylinders clamp the packaging bag, the edge of the packaging bag can accurately extend into the forward sealing heating block and the reverse sealing heating block, ensuring accurate sealing position. The sealing drive mechanism drives the forward sealing heating block and the reverse sealing heating block to clamp and heat the packaging bag. This invention ensures accurate positioning of the packaging bag during sealing and prevents it from tilting, enabling fast and accurate sealing.

[0009] In a preferred embodiment of this invention, the sealing drive mechanism includes a mounting plate fixed to a frame. A forward sealing cylinder and a reverse sealing cylinder, arranged in opposite directions, are mounted on the mounting plate. A forward sealing heating block is connected to the piston rod of the forward sealing cylinder, and a reverse guide rod is connected to the piston rod of the reverse sealing cylinder. A reverse sealing heating block is mounted on the other end of the reverse guide rod. The forward and reverse sealing cylinders operate simultaneously. The forward sealing cylinder drives the forward sealing heating block to extend, and the reverse sealing cylinder pushes the reverse guide rod to extend, which in turn pushes the reverse sealing heating block to extend. The forward and reverse sealing heating blocks clamp and heat the opening from opposite directions, achieving automatic sealing.

[0010] In a preferred embodiment of this invention, both the forward sealing heating block and the reverse sealing heating block are located on the side of the mounting plate away from the forward sealing cylinder and the reverse sealing cylinder. The space between the forward and reverse sealing heating blocks is unobstructed, ensuring that the rice can smoothly fall into the packaging bag through this space. Therefore, rice filling and bag sealing can be performed at this station, eliminating the need to move the packaging bag to the sealing station after the rice filling process.

[0011] In a preferred embodiment of this invention, a sealing forward fixing plate is fixed to the piston rod of the sealing forward cylinder, and the forward sealing heating block is installed on the sealing forward guide plate. The sealing forward fixing plate can reliably support the forward sealing heating block.

[0012] In a preferred embodiment of this utility model, a sealing sleeve is fixed to the sealing plate, and a reverse guide rod passes through the sealing sleeve. The reverse guide rod and the sealing sleeve mutually limit each other, ensuring accurate linear movement of the sealing plate and the reverse guide rod. Consequently, the forward sealing heating block and the reverse sealing heating block will not misalign after they come together, ensuring accurate sealing of the packaging bag.

[0013] In a preferred embodiment of this utility model, a sealing output guide plate is fixed to the piston rod of the sealing reverse cylinder, a sealing output sleeve is fixed to the sealing output guide plate, a sealing guide rod is fixed to the mounting plate, the sealing guide rod passes through the sealing output sleeve, and the reverse guide rod is fixed to the sealing output guide plate. The sealing guide rod reliably guides the sealing output sleeve, thereby enabling the sealing output guide plate to move accurately in a straight line, and consequently, the reverse guide rod can move accurately in a straight line.

[0014] In a preferred embodiment of this invention, a bag-sealing reverse fixing plate is connected to the reverse sealing heating block, and the end of the reverse guide rod away from the bag-sealing output guide plate is connected to the bag-sealing reverse fixing plate. The bag-sealing reverse fixing plate can reliably support the reverse sealing heating block.

[0015] As a preferred embodiment of this utility model, a guide sleeve is also fixed on the mounting plate, and the reverse guide rod passes through the guide sleeve. The guide sleeve can further guide the reverse guide rod, and the guide sleeve can reliably support the middle section of the reverse guide rod.

[0016] In a preferred embodiment of this invention, the shifting mechanism includes a bag-clamping lifting cylinder mounted on a frame. A bag-clamping bracket is connected to the piston rod of the bag-clamping lifting cylinder. Both ends of the bag-clamping bracket are equipped with bag-clamping lateral movement cylinders, and a gripper cylinder is mounted on the piston rod of the bag-clamping lateral movement cylinder. The bag-clamping lifting cylinder drives the bag-clamping bracket to a predetermined height position. Based on the size of the packaging bag, the bag-clamping lateral movement cylinder drives the gripper cylinder to move laterally to an accurate position, ensuring the distance between the two gripper cylinders adapts to the size of the packaging bag. The gripper cylinder clamps both ends of the packaging bag, facilitating reliable sealing of the bag's opening.

[0017] As a preferred embodiment of this utility model, the bag clamping bracket has a clearance opening on the side facing the packaging bag to avoid obstructing the opening of the packaging bag. Suction devices for pulling open the packaging bag's opening are required on both sides of the packaging bag, and the clearance opening of the bag clamping bracket can accommodate the suction device on one side.

[0018] The beneficial effects of this utility model are as follows:

[0019] The shifting mechanism of this invention moves two gripper cylinders to the precise position. After the two gripper cylinders clamp the packaging bag, the edge of the packaging bag can accurately extend into the forward sealing heating block and the reverse sealing heating block, ensuring accurate sealing position. The sealing drive mechanism drives the forward sealing heating block and the reverse sealing heating block to clamp and heat the packaging bag. This invention ensures accurate positioning of the packaging bag during sealing and prevents it from tilting, enabling fast and accurate sealing. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the structure of this utility model;

[0021] Figure 2 This is a structural diagram of the sealing unit;

[0022] Figure 3 This is a schematic diagram of the bag clamping unit.

[0023] In the diagram: 1-Bag sealing drive mechanism; 2-Forward sealing heating block; 3-Reverse sealing heating block; 4-Shifting mechanism; 5-Gripper cylinder; 6-Packaging bag; 11-Mounting plate; 12-Forward sealing cylinder; 13-Reverse sealing cylinder; 14-Reverse guide rod; 15-Forward sealing plate; 16-Bag sealing output guide plate; 17-Bag sealing guide rod; 18-Reverse sealing plate; 41-Bag clamping lifting cylinder; 42-Bag clamping bracket; 43-Bag clamping lateral movement cylinder; 111-Guide sleeve; 151-Forward sealing sleeve; 161-Bag sealing output sleeve; 421-Leaving opening. Detailed Implementation

[0024] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. The components of the embodiments of this utility model described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.

[0025] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without inventive effort are within the scope of protection of the present invention. It should be noted that, unless otherwise specified, the embodiments and features described in the embodiments of the present invention can be combined with each other.

[0026] like Figures 1-3 As shown, the bag sealing device of this embodiment includes a bag sealing unit and a bag clamping unit. The bag sealing unit includes a bag sealing drive mechanism 1 mounted on the frame. The bag sealing drive mechanism 1 has two opposing output ends. A forward sealing heating block 2 and a reverse sealing heating block 3 are respectively mounted on the two output ends of the bag sealing drive mechanism 1. The bag clamping unit includes a shifting mechanism 4 mounted on the frame. The shifting mechanism 4 has two output ends. A gripper cylinder 5 is mounted on each of the two output ends of the shifting mechanism. The two gripper cylinders 5 are arranged opposite each other and are located below the gap between the forward sealing heating block 2 and the reverse sealing heating block 3. After the two gripper cylinders 5 clamp the bag 6, the bag 6 is parallel to the forward sealing heating block 2 and the reverse sealing heating block 3, respectively.

[0027] The shifting mechanism 4 of this invention can move the two gripper cylinders 5 to the accurate position. After the two gripper cylinders 5 clamp the packaging bag 6, the edge of the packaging bag 6 can accurately extend into the forward sealing heating block 2 and the reverse sealing heating block 3, ensuring accurate sealing position. The sealing drive mechanism 1 drives the forward sealing heating block 2 and the reverse sealing heating block 3 to clamp and heat the packaging bag 6. This invention can ensure that the packaging bag 6 is accurately positioned during sealing and will not be skewed, achieving fast and accurate sealing.

[0028] Specifically, the sealing drive mechanism 1 includes a mounting plate 11 fixed to the frame. A forward sealing cylinder 12 and a reverse sealing cylinder 13, arranged in opposite directions, are mounted on the mounting plate 11. A forward sealing heating block 2 is connected to the piston rod of the forward sealing cylinder 12, and a reverse guide rod 14 is connected to the piston rod of the reverse sealing cylinder 13. A reverse sealing heating block 3 is mounted on the other end of the reverse guide rod 14. The forward sealing cylinder 12 and the reverse sealing cylinder 13 operate simultaneously. The forward sealing cylinder 12 drives the forward sealing heating block 2 to extend, and the reverse sealing cylinder 13 pushes the reverse guide rod 14 to extend, which in turn pushes the reverse sealing heating block 3 to extend. The forward sealing heating block 2 and the reverse sealing heating block 3 clamp and heat the opening from opposite directions, achieving automatic sealing.

[0029] Both the forward sealing heating block 2 and the reverse sealing heating block 3 are located on the side of the mounting plate 11 away from the forward sealing cylinder 12 and the reverse sealing cylinder 13. The space between the forward sealing heating block 2 and the reverse sealing heating block 3 is unobstructed, ensuring that the rice can fall smoothly into the packaging bag 6 through this space. Thus, rice filling and bag sealing can be performed at this station without the need to move the packaging bag 6 to the sealing station after the rice filling process.

[0030] A sealing forward fixing plate 15 is fixed to the piston rod of the sealing forward cylinder 12, and the forward sealing heating block 2 is installed on the sealing forward guide plate. The sealing forward fixing plate 15 can reliably support the forward sealing heating block 2.

[0031] A sealing sleeve 151 is fixed on the sealing plate 15, and a reverse guide rod 14 passes through the sealing sleeve 151. The reverse guide rod 14 and the sealing sleeve 151 mutually limit each other, ensuring that the sealing plate 15 moves accurately in a straight line and that the reverse guide rod 14 moves accurately in a straight line. As a result, the forward sealing heating block 2 and the reverse sealing heating block 3 will not be misaligned after they come together, ensuring that the packaging bag 6 is accurately sealed.

[0032] A sealing output guide plate 16 is fixed to the piston rod of the sealing reverse cylinder 13. A sealing output sleeve 161 is fixed to the sealing output guide plate. A sealing guide rod 17 is fixed to the mounting plate 11. The sealing guide rod 17 passes through the sealing output sleeve 161. A reverse guide rod 14 is fixed to the sealing output guide plate 16. The sealing guide rod 17 reliably guides the sealing output sleeve 161, thereby allowing the sealing output guide plate 16 to move accurately in a straight line, and consequently, the reverse guide rod 14 to move accurately in a straight line.

[0033] The reverse sealing heating block 3 is connected to a bag-sealing reverse fixing plate 18, and the end of the reverse guide rod 14 away from the bag-sealing output guide plate 16 is connected to the bag-sealing reverse fixing plate 18. The bag-sealing reverse fixing plate 18 can reliably support the reverse sealing heating block 3.

[0034] A guide sleeve 111 is also fixed on the mounting plate 11, and a reverse guide rod 14 passes through the guide sleeve 111. The guide sleeve can further guide the reverse guide rod 14, and the guide sleeve can reliably support the middle section of the reverse guide rod 14.

[0035] Specifically, the shifting mechanism 4 includes a bag-clamping lifting cylinder 41 mounted on the frame. A bag-clamping bracket 42 is connected to the piston rod of the bag-clamping lifting cylinder 41. Both ends of the bag-clamping bracket 42 are equipped with bag-clamping lateral movement cylinders 43, and gripper cylinders 5 are mounted on the piston rods of the bag-clamping lateral movement cylinders 43. The bag-clamping lifting cylinder 41 drives the bag-clamping bracket 42 to a predetermined height position. Based on the size of the packaging bag 6, the bag-clamping lateral movement cylinders 43 drive the gripper cylinders 5 to move laterally to an accurate position, ensuring the distance between the two gripper cylinders 5 adapts to the size of the packaging bag 6. The gripper cylinders 5 clamp both ends of the packaging bag 6, facilitating reliable sealing of the opening of the packaging bag 6.

[0036] The bag clamping bracket 42 has a clearance opening 421 on the side facing the packaging bag 6 to avoid obstructing the opening of the packaging bag 6. Suction devices for pulling open the opening of the packaging bag 6 need to be provided on both sides of the packaging bag 6, and the clearance opening 421 of the bag clamping bracket 42 can accommodate the suction device on one side.

[0037] This utility model is not limited to the above-mentioned optional embodiments. Anyone can derive other forms of products under the guidance of this utility model. However, regardless of any changes made in its shape or structure, any technical solution that falls within the scope of the claims of this utility model shall be protected by this utility model.

Claims

1. A bag sealing apparatus for a bagging bag, characterized by: The system includes a sealing unit and a clamping unit. The sealing unit includes a sealing drive mechanism (1) mounted on the frame. The sealing drive mechanism (1) has two opposing output ends. A forward sealing heating block (2) and a reverse sealing heating block (3) are respectively mounted on the two output ends of the sealing drive mechanism (1). The clamping unit includes a shifting mechanism (4) mounted on the frame. The shifting mechanism (4) has two output ends. A clamping cylinder (5) is mounted on each of the two output ends of the shifting mechanism. The two clamping cylinders (5) are arranged opposite to each other. The two clamping cylinders (5) are located below the gap between the forward sealing heating block (2) and the reverse sealing heating block (3). After the two clamping cylinders (5) clamp the packing bag (6), the packing bag (6) is parallel to the forward sealing heating block (2) and the reverse sealing heating block (3) respectively.

2. A bag sealing apparatus according to claim 1, wherein: The sealing drive mechanism (1) includes a mounting plate (11) fixed on the frame. A sealing forward cylinder (12) and a sealing reverse cylinder (13) arranged in opposite directions are mounted on the mounting plate (11). A forward sealing heating block (2) is connected to the piston rod of the sealing forward cylinder (12). A reverse guide rod (14) is connected to the piston rod of the sealing reverse cylinder (13). A reverse sealing heating block (3) is installed at the other end of the reverse guide rod (14).

3. A bag sealing apparatus according to claim 2, wherein: The forward sealing heating block (2) and the reverse sealing heating block (3) are both located on the side of the mounting plate (11) away from the forward sealing cylinder (12) and the reverse sealing cylinder (13).

4. A bag sealing apparatus according to claim 2, wherein: The piston rod of the sealing cylinder (12) is fixed with a sealing bag fixing plate (15), and the sealing heating block (2) is installed on the sealing bag guide plate.

5. A bag sealing apparatus as claimed in claim 4, wherein: A sealing sleeve (151) is fixed on the sealing bag forward fixing plate (15), and a reverse guide rod (14) passes through the sealing bag forward sleeve (151).

6. A bag sealing apparatus as claimed in claim 2, wherein: A sealing output guide plate (16) is fixed on the piston rod of the sealing reverse cylinder (13), a sealing output sleeve (161) is fixed on the sealing output guide plate, a sealing guide rod (17) is fixed on the mounting plate (11), the sealing guide rod (17) passes through the sealing output sleeve (161), and the reverse guide rod (14) is fixed on the sealing output guide plate (16).

7. A bag sealing apparatus according to claim 6, wherein: The reverse sealing heating block (3) is connected to a bag-sealing reverse fixing plate (18), and the end of the reverse guide rod (14) away from the bag-sealing output guide plate (16) is connected to the bag-sealing reverse fixing plate (18).

8. A bag sealing apparatus according to claim 2, wherein: A guide sleeve (111) is also fixed on the mounting plate (11), and a reverse guide rod (14) passes through the guide sleeve (111).

9. A bag sealing apparatus according to claim 1, wherein: The shifting mechanism (4) includes a bag-clamping lifting cylinder (41) mounted on the frame. A bag-clamping bracket (42) is connected to the piston rod of the bag-clamping lifting cylinder (41). Both ends of the bag-clamping bracket (42) are equipped with bag-clamping horizontal shifting cylinders (43). A gripper cylinder (5) is mounted on the piston rod of the bag-clamping horizontal shifting cylinder (43).

10. A bag sealing apparatus according to claim 9, wherein: The bag clamping bracket (42) is provided with a clearance opening (421) on the side facing the packing bag (6) to avoid obstructing the opening of the packing bag (6).

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