Packing bag opening device

Abstract

The utility model belongs to the technical field of packaging machines, and particularly relates to a packaging bag opening device. According to the technical scheme, the packaging bag opening device comprises a fixed suction mechanism, a bag clamping unit, an overturning suction mechanism and a storage bin which are installed on a rack, the overturning suction mechanism directly faces the lower portion of the storage bin when being overturned to be horizontal, and the overturning suction mechanism directly faces the fixed suction mechanism when being overturned to be vertical; the bag clamping unit is located between the fixed suction mechanism and the overturning suction mechanism. The utility model provides the packaging bag opening device without manual operation.

Description

Technical Field

[0001] This utility model belongs to the field of packaging machine technology, and specifically relates to a packaging bag opening 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 CN202311103002.9 discloses a rice packaging machine, including a frame, a rice filling trough and several weighing modules mounted on the frame, a bracket connected to the weighing modules, and a rice dispensing trough connected to the bracket. The rice dispensing troughs are located below the rice filling trough, and two opening / closing hoppers are rotatably connected to the lower end of each rice dispensing trough. An opening / closing mechanism connects the two opening / closing hoppers. The frame also includes a transverse movement mechanism with a clamping mechanism for holding rice bags, and a sealing mechanism for sealing the rice bags, located on one side of the transverse movement mechanism. A bag dispensing mechanism is located at the lower part of the frame. This patent provides a rice packaging machine that can accurately dispense rice and automatically seal rice bags.

[0004] However, the rice packaging machine mentioned above requires manual insertion of rice bags, and cannot achieve fully automated rice packaging. 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 opening device that does not require manual operation.

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

[0007] A bag opening device includes a fixed suction mechanism, a bag clamping unit, a flip suction mechanism, and a storage compartment mounted on a frame. When the flip suction mechanism is flipped to a horizontal position, it faces the bottom of the storage compartment. When the flip suction mechanism is flipped to a vertical position, it faces the fixed suction mechanism. The bag clamping unit is located between the fixed suction mechanism and the flip suction mechanism.

[0008] The flipping and suction mechanism of this invention suctions the bottommost packaging bag of the storage compartment, flipping it to face the fixed suction mechanism. The bag clamping unit clamps both ends of the packaging bag, and the fixed suction mechanism sucks on the other side of the open packaging bag, thus opening the packaging bag. At this point, the food can be accurately added into the opened packaging bag.

[0009] The flipping and suction mechanism of this invention can automatically pick up and transfer the packaging bag to a designated position. With the bag clamping unit clamping both ends, the flipping and suction mechanism and the fixing suction mechanism open the packaging bag opening. This flipping and suction mechanism can automatically remove the packaging bag from the storage compartment and flip it to a designated position, avoiding manual bag retrieval and opening operations.

[0010] In a preferred embodiment of this invention, the fixing suction mechanism includes a fixing suction telescopic cylinder mounted on a frame. A fixing suction frame is connected to the piston rod of the fixing suction telescopic cylinder. The fixing suction frame is equipped with several fixing suction cups for suctioning one side of the packaging bag. The fixing suction cups are located on the side of the bag clamping unit away from the flipping suction frame. The fixing suction telescopic cylinder pushes out the fixing suction frame, and the several fixing suction cups on the fixing suction frame reliably suction one side of the packaging bag.

[0011] As a preferred embodiment of this utility model, the bag clamping unit includes a shifting mechanism mounted on a frame. The shifting mechanism has two output ends, each equipped with a gripper cylinder. The two gripper cylinders are arranged opposite each other and are located in the area between the fixed suction mechanism and the flip suction mechanism. After the two gripper cylinders clamp the bag, the bag is parallel to both the fixed suction mechanism and the flip suction mechanism. The shifting mechanism can move the two gripper cylinders to the accurate position. After the bag is clamped by the two gripper cylinders, the fixed suction mechanism and the flip suction mechanism can open the opening of the bag in opposite directions on both sides, facilitating the subsequent food filling process.

[0012] 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 the opening of the packaging bag to be opened on both sides through a fixed suction mechanism and a flip suction mechanism.

[0013] As a preferred embodiment of this utility model, the bag clamping bracket has a clearance opening on the side facing the packaging bag, through which the fixing suction mechanism passes. The bag clamping bracket can avoid the fixing suction mechanism, thereby ensuring that the fixing suction mechanism can suction the packaging bag from the side of the packaging bag away from the flipping suction mechanism.

[0014] As a preferred embodiment of this utility model, the flipping suction mechanism includes a flipping cylinder mounted on a frame, a flipping frame rotatably connected to the frame, a flipping connecting rod fixed on the flipping frame, a piston rod of the flipping cylinder rotatably connected to the other end of the flipping connecting rod, a multi-stage extension cylinder assembly mounted on the flipping frame, a piston rod of the multi-stage extension cylinder assembly connected to the flipping suction frame, and a plurality of flipping suction cups for suctioning the other side of the packaging bag mounted on the flipping suction frame. When the flipping suction frame is flipped to a horizontal position, it faces the bottom of the storage compartment; when the flipping suction frame is flipped to a vertical position, it faces the fixed suction mechanism.

[0015] A multi-stage extending cylinder assembly pushes the tilting suction frame to extend, allowing several tilting suction cups on the frame to suction the bottommost packing bag in the storage compartment. The tilting cylinder drives the tilting frame to rotate 90°, thus tilting the packing bag to face the fixed suction mechanism. At this point, the bag clamping unit clamps both ends of the packing bag, and the fixed suction mechanism suctions the other side of the packing bag, allowing the bag opening to be opened. This invention's tilting suction mechanism can automatically pick up packing bags and tilt them to the packing position without manual operation.

[0016] As a preferred embodiment of this utility model, the multi-stage extension cylinder assembly includes a primary extension cylinder and a secondary extension cylinder. The primary extension cylinder is mounted on the tilting frame, and the secondary extension cylinder is mounted on the piston rod of the primary extension cylinder. The tilting suction frame is connected to the piston rod of the secondary extension cylinder.

[0017] As a preferred embodiment of this utility model, the flipping suction mechanism further includes a position detection sensor mounted on the frame, and a sensing plate is fixed on the flipping frame; when the flipping suction frame rotates to face directly below the storage compartment, the sensing plate contacts the position detection sensor. When the flipping suction frame rotates to face directly below the storage compartment, the sensing plate contacts the position detection sensor, ensuring that the flipping suction frame can reliably pick up the packaging bag.

[0018] As a preferred embodiment of this utility model, the flipping suction mechanism further includes a support limiting plate mounted on the frame. When the flipping suction frame flips to face the fixed suction mechanism, the multi-stage extending cylinder assembly overlaps on the support limiting plate. The support limiting plate can support and limit the multi-stage extending cylinder assembly.

[0019] In a preferred embodiment of this invention, the storage compartment includes a bag-dropping frame fixed to the frame. Baffles are provided around the bag-dropping frame, and the edges of the baffles and the bag-dropping frame have supporting bottom edges for supporting the packaged bags. The supporting bottom edges support the stacked packaged bags, so that when the bottom layer of packaged bags is sucked out, the remaining packaged bags will not be pulled out. The stacked packaged bags are placed in the storage compartment, and several flipping suction cups on the flipping suction frame suck and pull out the bottom packaged bag, while the remaining packaged bags are supported by the supporting bottom plates.

[0020] The beneficial effects of this utility model are as follows:

[0021] The flipping and suction mechanism of this invention can automatically pick up and transfer the packaging bag to a designated position. With the bag clamping unit clamping both ends, the flipping and suction mechanism and the fixing suction mechanism open the packaging bag opening. This flipping and suction mechanism can automatically remove the packaging bag from the storage compartment and flip it to a designated position, avoiding manual bag retrieval and opening operations. Attached Figure Description

[0022] Figure 1 This is a schematic diagram of the structure of this utility model;

[0023] Figure 2 This is a schematic diagram of the fixed suction mechanism;

[0024] Figure 3 This is a structural schematic diagram of the bag clamping unit;

[0025] Figure 4 This is a structural diagram of the flip-and-close mechanism and the storage compartment;

[0026] Figure 5 This is a schematic diagram of the storage compartment structure;

[0027] Figure 6 This is a schematic diagram of the flip-and-engage mechanism.

[0028] In the diagram: 1-Fixed suction mechanism; 2-Bag clamping unit; 3-Flipping suction mechanism; 4-Storage compartment; 11-Fixed suction telescopic cylinder; 12-Fixed suction frame; 13-Fixed suction cup; 21-Shifting mechanism; 22-Gripper cylinder; 31-Flipping cylinder; 32-Flipping frame; 33-Flipping linkage; 34-Multi-stage extension cylinder assembly; 35-Flipping suction frame; 36-Flipping suction cup; 37-Position detection sensor; 38-Induction plate; 39-Supporting limit plate; 41-Bag dropping frame; 42-Baffle; 211-Bag clamping lifting cylinder; 212-Bag clamping bracket; 213-Bag clamping lateral movement cylinder; 214-Leaving opening; 341-First-stage extension cylinder; 342-Second-stage extension cylinder; 411-Supporting bottom edge. Detailed Implementation

[0029] 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.

[0030] 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.

[0031] like Figures 1-6 As shown, the bag opening device of this embodiment includes a fixed suction mechanism 1, a bag clamping unit 2, a flip suction mechanism 3 and a storage compartment 4 installed on the frame. When the flip suction mechanism 3 is flipped to the horizontal position, it faces the bottom of the storage compartment 4. When the flip suction mechanism 3 is flipped to the vertical position, it faces the fixed suction mechanism 1. The bag clamping unit 2 is located between the fixed suction mechanism 1 and the flip suction mechanism 3.

[0032] The flipping and suction mechanism 3 of this invention suctions the bottommost packaging bag of the storage compartment 4, flipping the mechanism 3 to face the fixing suction mechanism 1. The bag clamping unit 2 clamps both ends of the packaging bag, and the fixing suction mechanism 1 suctions the other side of the open packaging bag, thus opening the packaging bag. At this time, the food can be accurately added into the opened packaging bag.

[0033] The flipping and suction mechanism 3 of this invention can automatically pick up the packaging bag and transfer it to a designated position. With the bag clamping unit 2 clamping both ends, the flipping and suction mechanism 3 and the fixing suction mechanism 1 open the packaging bag. The flipping and suction mechanism 3 of this invention can automatically remove the packaging bag from the storage compartment 4 and flip the packaging bag to a designated position, avoiding manual bag removal and opening operations.

[0034] Specifically, the fixed suction mechanism 1 includes a fixed suction telescopic cylinder 11 mounted on the frame. A fixed suction frame 12 is connected to the piston rod of the fixed suction telescopic cylinder 11. A plurality of fixed suction cups 13 for suctioning one side of the packaging bag are mounted on the fixed suction frame 12. The fixed suction cups 13 are located on the side of the bag clamping unit 2 away from the flipping suction frame 35. The fixed suction telescopic cylinder 11 pushes out the fixed suction frame 12, and the plurality of fixed suction cups 13 on the fixed suction frame 12 reliably suction one side of the packaging bag.

[0035] Specifically, the bag clamping unit 2 includes a shifting mechanism 21 mounted on the frame. The shifting mechanism 21 has two output ends, each equipped with a gripper cylinder 22. The two gripper cylinders 22 are positioned opposite each other, located in the area between the fixed suction mechanism 1 and the flip suction mechanism 3. After the two gripper cylinders 22 clamp the bag, the bag is parallel to both the fixed suction mechanism 1 and the flip suction mechanism 3. The shifting mechanism 21 can move the two gripper cylinders 22 to the accurate position. After the bag is clamped by the two gripper cylinders 22, the fixed suction mechanism 1 and the flip suction mechanism 3 can open the opening of the bag in opposite directions on both sides, facilitating the subsequent food filling process.

[0036] The shifting mechanism 21 includes a bag-clamping lifting cylinder 211 mounted on the frame. A bag-clamping bracket 212 is connected to the piston rod of the bag-clamping lifting cylinder 211. Both ends of the bag-clamping bracket 212 are equipped with bag-clamping transverse shift cylinders 213, and a gripper cylinder 22 is mounted on the piston rod of the bag-clamping transverse shift cylinder 213. The bag-clamping lifting cylinder 211 drives the bag-clamping bracket 212 to a predetermined height position. Based on the size of the bag, the bag-clamping transverse shift cylinder 213 drives the gripper cylinder 22 to move laterally to an accurate position, ensuring the distance between the two gripper cylinders 22 adapts to the size of the bag. The gripper cylinder 22 clamps both ends of the bag, facilitating the opening of the bag to be pulled open by the fixed suction mechanism 1 and the flip suction mechanism 3.

[0037] Furthermore, the bag clamping bracket 212 is provided with a clearance opening 214 on the side facing the packaging bag, through which the fixing suction mechanism 1 passes. The bag clamping bracket 212 can avoid the fixing suction mechanism 1, thereby ensuring that the fixing suction mechanism 1 can suction the packaging bag from the side of the packaging bag away from the flipping suction mechanism 3.

[0038] Specifically, the flipping suction mechanism 3 includes a flipping cylinder 31 mounted on a frame, a flipping frame 32 rotatably connected to the frame, a flipping connecting rod 33 fixed on the flipping frame 32, a piston rod of the flipping cylinder 31 rotatably connected to the other end of the flipping connecting rod 33, a multi-stage extension cylinder assembly 34 mounted on the flipping frame 32, a flipping suction frame 35 connected to the piston rod of the multi-stage extension cylinder assembly 34, and a plurality of flipping suction cups 36 for suctioning the other side of the packaging bag mounted on the flipping suction frame 35. When the flipping suction frame 35 is flipped to the horizontal position, it faces the bottom of the storage compartment 4. When the flipping suction frame 35 is flipped to the vertical position, it faces the fixed suction mechanism 1.

[0039] A multi-stage extending cylinder assembly 34 pushes the tilting suction frame 35 to extend, allowing several tilting suction cups 36 on the tilting suction frame 35 to suction the bottommost packing bag in the storage compartment 4. The tilting cylinder 31 drives the tilting frame 32 to tilt 90°, thus tilting the packing bag to face the fixed suction mechanism 1. At this time, the bag clamping unit 2 clamps both ends of the packing bag, and the fixed suction mechanism 1 suctions the other side of the packing bag, allowing the opening of the packing bag to be opened. The tilting suction mechanism 3 of this invention can automatically pick up the packing bag and tilt it to the packing position without manual operation.

[0040] The multi-stage extension cylinder assembly 34 includes a primary extension cylinder 341 and a secondary extension cylinder 342. The primary extension cylinder 341 is mounted on the tilting frame 32, and the secondary extension cylinder 342 is mounted on the piston rod of the primary extension cylinder 341. The tilting suction frame 35 is connected to the piston rod of the secondary extension cylinder 342.

[0041] Furthermore, the flipping suction mechanism 3 also includes a position detection sensor 37 mounted on the frame, and a sensing plate 38 fixed on the flipping frame 32; when the flipping suction frame 35 rotates to face directly below the storage compartment 4, the sensing plate 38 contacts the position detection sensor 37. This ensures that the flipping suction frame 35 can reliably pick up the packaging bag.

[0042] The flip-and-close mechanism 3 also includes a support and limiting plate 39 mounted on the frame. When the flip-and-close frame 35 flips to face the fixed suction mechanism 1, the multi-stage extension cylinder assembly 34 overlaps on the support and limiting plate 39. The support and limiting plate 39 can support and limit the multi-stage extension cylinder assembly 34.

[0043] Specifically, the storage compartment 4 includes a bag-dropping frame 41 fixed to the frame. Each bag-dropping frame 41 is surrounded by baffles 42, with supporting bottom edges 411 on the edges of the baffles 42 and the bag-dropping frame 41 for supporting the packaged bags. The supporting bottom edges 411 support the stacked packaged bags, ensuring that when the bottommost packaged bag is sucked out, the remaining packaged bags are not pulled out. When the stacked packaged bags are placed in the storage compartment 4, several flipping suction cups 36 on the flipping suction frame 35 suck up and pull out the bottommost packaged bag, while the remaining packaged bags are supported by the supporting bottom plates.

[0044] 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 opening device for packaging bags, characterized in that: It includes a fixed suction mechanism (1), a bag clamping unit (2), a flip suction mechanism (3), and a storage compartment (4) mounted on a frame. When the flip suction mechanism (3) is flipped to the horizontal position, it faces the bottom of the storage compartment (4). When the flip suction mechanism (3) is flipped to the vertical position, it faces the fixed suction mechanism (1). The bag clamping unit (2) is located between the fixed suction mechanism (1) and the flip suction mechanism (3).

2. The bag opening device according to claim 1, characterized in that: The fixed suction mechanism (1) includes a fixed suction telescopic cylinder (11) mounted on the frame. A fixed suction frame (12) is connected to the piston rod of the fixed suction telescopic cylinder (11). Several fixed suction cups (13) for suctioning one side of the packaging bag are mounted on the fixed suction frame (12). The fixed suction cups (13) are located on the side of the bag clamping unit (2) away from the flip suction frame (35).

3. The bag opening device according to claim 1, characterized in that: The bag clamping unit (2) includes a shifting mechanism (21) mounted on the frame. The shifting mechanism (21) has two output ends. Each of the two output ends of the shifting mechanism is equipped with a gripper cylinder (22). The two gripper cylinders (22) are arranged opposite to each other. The two gripper cylinders (22) are located in the area between the fixed suction mechanism (1) and the flip suction mechanism (3). After the two gripper cylinders (22) clamp the bag, the bag is parallel to the fixed suction mechanism (1) and the flip suction mechanism (3) respectively.

4. The bag opening device according to claim 3, characterized in that: The shifting mechanism (21) includes a bag-clamping lifting cylinder (211) mounted on the frame. A bag-clamping bracket (212) is connected to the piston rod of the bag-clamping lifting cylinder (211). Both ends of the bag-clamping bracket (212) are equipped with bag-clamping horizontal shifting cylinders (213). A gripper cylinder (22) is mounted on the piston rod of the bag-clamping horizontal shifting cylinder (213).

5. A bag opening device according to claim 4, characterized in that: The bag clamping bracket (212) has a clearance opening (214) on the side facing the packaging bag, and the fixing suction mechanism (1) passes through the clearance opening (214).

6. The bag opening device according to claim 1, characterized in that: The flipping suction mechanism (3) includes a flipping cylinder (31) mounted on the frame, a flipping frame (32) rotatably connected to the frame, a flipping connecting rod (33) fixed on the flipping frame (32), the piston rod of the flipping cylinder (31) rotatably connected to the other end of the flipping connecting rod (33), a multi-stage extension cylinder assembly (34) is mounted on the flipping frame (32), the piston rod of the multi-stage extension cylinder assembly (34) is connected to a flipping suction frame (35), a number of flipping suction cups (36) for suctioning the other side of the packaging bag are mounted on the flipping suction frame (35), when the flipping suction frame (35) is flipped to the horizontal position, it faces the bottom of the storage compartment (4), and when the flipping suction frame (35) is flipped to the vertical position, it faces the fixed suction mechanism (1).

7. A bag opening device according to claim 6, characterized in that: The multi-stage extension cylinder assembly (34) includes a first-stage extension cylinder (341) and a second-stage extension cylinder (342). The first-stage extension cylinder (341) is mounted on the tilting frame (32), and the second-stage extension cylinder (342) is mounted on the piston rod of the first-stage extension cylinder (341). The tilting suction frame (35) is connected to the piston rod of the second-stage extension cylinder (342).

8. A bag opening device according to claim 6, characterized in that: The flip-and-close mechanism (3) also includes a position detection sensor (37) mounted on the frame, and a sensor plate (38) is fixed on the flip frame (32); when the flip-and-close frame (35) rotates to face the storage compartment (4) from below, the sensor plate (38) contacts the position detection sensor (37).

9. A bag opening device according to claim 6, characterized in that: The flip-and-pull mechanism (3) also includes a support limiting plate (39) installed on the frame. When the flip-and-pull frame (35) flips to face the fixed suction mechanism (1), the multi-stage extension cylinder group (34) overlaps on the support limiting plate (39).

10. A bag opening device according to any one of claims 1 to 9, characterized in that: The storage compartment (4) includes a bag drop frame (41) fixed on the frame. Baffles (42) are provided around the bag drop frame (41). The edges of the baffles (42) and the bag drop frame (41) have supporting bottom edges (411) for supporting the packaging bags.

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