Unpacking mechanism of automatic tea packaging equipment

Abstract

The utility model discloses an unpacking mechanism of automatic tea packaging equipment, which comprises a clamping component, a bag sucking component and a controller, the clamping component is provided with a pair of clamping jaws capable of respectively clamping or releasing a bag body from the left side and the right side; the suction cups are arranged on the front side and the rear side of a bag body respectively, the bag suction driver drives the two suction cups to get close to each other or get away from each other, the vacuum adsorption system enables the two suction cups to tightly suck the bag body through vacuum adsorption force, and the controller is electrically connected with the clamping assembly and the bag suction assembly. Stable and efficient bag opening operation can be achieved through cooperative adsorption and separation actions, and the efficiency and reliability of a tea packaging production line are effectively improved.

Description

Technical Field

[0001] This utility model relates to the technical field of tea production equipment, and in particular to the technical field of tea packaging equipment. Background Technology

[0002] Aluminum packaging bags (commonly known as aluminum foil composite bags) are flexible packaging bags made of multi-layer composite materials; their typical structure includes a printed protective layer (i.e., the outer layer, usually a polyester film or nylon film, used to provide mechanical strength, printed surface and basic moisture protection), a barrier layer (i.e., the middle layer, usually aluminum foil, with high barrier properties, which can effectively isolate oxygen, water vapor, light and odors), and a heat-sealing layer (i.e., the inner layer, usually made of polyethylene or cast polypropylene, which ensures heat-sealing performance, can directly contact food and ensure airtightness).

[0003] On tea packaging production lines, aluminum packaging bags are widely used in the finished tea packaging due to their excellent barrier, moisture-proof and freshness-preserving properties. Examples include a multi-layered tea packaging bag with announcement number CN202368884U and a tea packaging bag with announcement number CN202863951U. Since aluminum packaging bags are usually stored, transported and sold in a flattened stacked state, the opening needs to be opened before automated filling to facilitate the filling of tea. However, the traditional manual bag opening method is inefficient, labor-intensive and difficult to meet the high-speed and continuous operation requirements of modern production lines. Summary of the Invention

[0004] The purpose of this invention is to solve the problems in the existing technology and propose an opening mechanism for automatic tea packaging equipment. This mechanism can achieve stable and efficient bag opening operation by utilizing synergistic adsorption and separation actions, thereby effectively improving the efficiency and reliability of the tea packaging production line.

[0005] To achieve the above objectives, this utility model proposes an opening mechanism for an automatic tea packaging equipment, including a clamping component, a suction bag component, and a controller. The clamping component has a pair of grippers that can grip or release the bag from the left and right sides respectively. The suction bag component has suction cups respectively disposed on the front and rear sides of the bag, a suction bag driver that drives the two suction cups to move closer or further apart, and a vacuum suction system that allows the two suction cups to use vacuum suction force to firmly suction the bag. The controller is electrically connected to the clamping component and the suction bag component respectively.

[0006] Preferably, the system also includes a stepping rotary table, which has a turntable that can be intermittently rotated by a table motor at a specified angle. Several sets of clamping components are arranged around the turntable. The bag suction assembly is located above the stepping rotary table and is positioned directly opposite one of the stepping stations. The controller is electrically connected to the controller.

[0007] Preferably, the gripper includes a gripper bar, a stationary gripper finger, a movable gripper finger, and a gripper driver. One end of the gripper bar is fixed to the turntable, while the other end is equipped with a stationary gripper finger. The movable gripper finger is slidably connected to the gripper bar and is driven by the gripper driver to move closer to or further away from the stationary gripper finger.

[0008] Preferably, the gripper driver is a pneumatic cylinder, hydraulic cylinder, lead screw, or electromagnetic drive module.

[0009] Preferably, the electromagnetic drive module has an electromagnet and a permanent magnet respectively disposed in the stationary and moving clamping fingers.

[0010] Preferably, the vacuum adsorption system includes a vacuum generator, a support tube, and a flexible conduit, with a suction cup installed at one end of the support tube and the other end connected to the vacuum generator via the flexible conduit.

[0011] Preferably, the suction bag driver is a cylinder, hydraulic cylinder, lead screw, or rack and pinion linear module.

[0012] Preferably, the gear and rack linear module includes a housing, a wheel motor, a connecting rod, a gear, and a rack. The gear is rotatably connected inside the housing. The gear can be driven to rotate by the wheel motor and has a pair of racks that are slidably connected to the housing. The two racks are indirectly connected to the corresponding support tubes through connecting rods that extend out of the housing.

[0013] The beneficial effects of this utility model are:

[0014] 1) By having the clamping assembly use a pair of grippers to grip or release the bag from the left and right sides along the bag edge, the bag can be effectively prevented from slipping during the opening process. The suction bag assembly uses a pair of relatively movable suction cups to use vacuum suction force to tighten and pull the bag from the front and back sides, thereby ensuring that the bag is subjected to uniform force. Finally, the coordinated suction and separation action achieves a stable and efficient bag opening operation, effectively improving the efficiency and reliability of the tea packaging production line.

[0015] 2) By combining the gripper bar, stationary gripper finger, moving gripper finger and gripper driver to form a gripper, and by installing electromagnets and permanent magnets in the stationary gripper finger and the moving gripper finger respectively as electromagnetic drive modules, gripping operation can be achieved in a small space and the action response speed is high.

[0016] 3) By connecting the vacuum adsorption system, which consists of a vacuum generator, a support tube, and a flexible conduit, and the gear and rack linear module, which consists of a shell, a wheel motor, a connecting rod, gears, and a rack, with the suction cup to form a suction bag assembly, it is possible to use the wheel motor to precisely control the opening degree of the bag and to use the vacuum generator to adjust the vacuum adsorption force of the suction cup on the bag, thereby meeting the needs of different opening scenarios.

[0017] The features and advantages of this utility model will be described in detail through embodiments and accompanying drawings. Attached Figure Description

[0018] Figure 1 This is a top view of the opening mechanism of the automatic tea packaging equipment of this utility model;

[0019] Figure 2 This is a front view of the clamping component of the opening mechanism of the automatic tea packaging equipment of this utility model when clamping the bag;

[0020] Figure 3 This is a schematic diagram of the pre-opening operation of the opening mechanism of the automatic tea packaging equipment of this utility model;

[0021] Figure 4 This is a schematic diagram of the opening mechanism of the automatic tea packaging equipment of this utility model after the bag is opened;

[0022] Figure 5 This is a schematic diagram of the gear and rack assembly of the opening mechanism of the automatic tea packaging equipment of this utility model.

[0023] In the diagram: 1-clamping assembly, 11-claw bar, 12-static clamping finger, 13-moving clamping finger, 14-electromagnet, 15-permanent magnet, 2-bag suction assembly, 21-suction cup, 22-support tube, 23-outer shell, 24-wheel motor, 25-connecting rod, 26-gear, 27-rack, 3-stepping rotary worktable, 4-bag body. Detailed Implementation

[0024] See Figures 1 to 5 The opening mechanism of the automatic tea packaging equipment of this utility model includes a clamping component 1, a suction bag component 2, and a controller. The clamping component 1 has a pair of grippers that can grip or release the bag body 4 from the left and right sides respectively. The suction bag component 2 has suction cups 21 respectively arranged on the front and rear sides of the bag body 4, a suction bag driver that drives the two suction cups 21 to move closer or further apart, and a vacuum adsorption system that allows the two suction cups 21 to use vacuum adsorption force to firmly suction the bag body 4. The controller is electrically connected to the clamping component 1 and the suction bag component 2 respectively.

[0025] It also includes a stepping rotary table 3, which has a turntable that can be driven by a table motor to rotate intermittently by a specified angle. Several sets of clamping components 1 are arranged around the turntable. The bag suction component 2 is located above the stepping rotary table 3 and is set directly opposite one of the stepping stations. The controller is electrically connected to the controller.

[0026] The gripper includes a gripper bar 11, a stationary gripper finger 12, a movable gripper finger 13, and a gripper driver. One end of the gripper bar 11 is fixed to the turntable, while the other end is equipped with the stationary gripper finger 12. The movable gripper finger 13 is slidably connected to the gripper bar 11 and is driven by the gripper driver to move closer to or away from the stationary gripper finger 12. Anti-slip pads are also installed on the adjacent surfaces of the stationary gripper finger 12 and the movable gripper finger 13.

[0027] The gripper driver is an electromagnetic drive module, which has an electromagnet 14 and a permanent magnet 15 respectively disposed in the stationary gripper finger 12 and the moving gripper finger 13; in addition, the gripper driver can also be a cylinder, a hydraulic cylinder or a lead screw.

[0028] The vacuum adsorption system includes a vacuum generator, a support tube 22 and a flexible conduit. One end of the support tube 22 is equipped with a suction cup 21, and the other end is connected to the vacuum generator through the flexible conduit.

[0029] The suction bag actuator is a gear and rack linear module, which includes a housing 23, a wheel motor 24, a connecting rod 25, a gear 26, and a rack 27. The gear 26 is rotatably connected inside the housing 23. The gear 26 can be driven to rotate by the wheel motor 24 and has a pair of racks 27 that are slidably connected to the housing 23 on its periphery. The two racks 27 are indirectly connected to the corresponding support tubes 22 through the connecting rods 25 that extend out of the housing 23. In addition, the suction bag actuator can also be a cylinder, a hydraulic cylinder, or a lead screw.

[0030] The working process of this utility model:

[0031] Taking a turntable with four stations (including stations A, B, C, and D) and packaging green tea as an example, firstly, a robotic arm delivers the bag 4 to station A so that the clamping assembly 1 at station A clamps the bag 4 (the electromagnet 14 is energized to attract the permanent magnet 15, causing the moving clamping finger 13 to approach the stationary clamping finger); then, the wheel motor 24 drives the gear 26 to rotate forward so that the two sets of racks 27, connecting rods 25, and support tubes 22 drive the two suction cups 21 to move closer to each other until they are attached to the bag 4; the vacuum generator is then activated so that the two suction cups 21 vacuum-adhere to the bag 4 (the gas between the bag 4 and the two suction cups 21 is discharged outward along the two sets of support tubes 22 and the hoses). Then, the wheel motor 24 first drives the gear 26 to rotate in the opposite direction so that the two sets of racks 27, connecting rods 25 and support tubes 22 can drive the two suction cups 21 to move away from each other until the bag 4 completes the opening operation. The vacuum generator then sends air to the two suction cups 21 through the two sets of support tubes 22 and hoses until both suction cups 21 release the bag 4. Next, under the action of the stepping rotary table 3, the bag 4 will move to station B, station C and station D in sequence, so that the green packaging is loaded at station B, the preservation card is loaded at station C and the bag is sealed by the hot press at station D. Finally, the clamping assembly 1 releases the bag (the electromagnet 14 is energized to repel the permanent magnet 15 so that the moving clamping finger 13 moves away from the stationary clamping finger).

[0032] The above embodiments are illustrative of the present invention and are not intended to limit the present invention. Any simple modifications to the present invention are within the protection scope of the present invention.

Claims

1. An unpacking mechanism of an automatic tea packaging apparatus, characterized in that: The device includes a clamping assembly (1), a suction bag assembly (2), and a controller. The clamping assembly (1) has a pair of grippers that can grip or release the bag body (4) from the left and right sides respectively. The suction bag assembly (2) has suction cups (21) respectively arranged on the front and rear sides of the bag body (4), a suction bag driver that drives the two suction cups (21) to move closer or further away from each other, and a vacuum adsorption system that allows the two suction cups (21) to use vacuum adsorption force to firmly suction the bag body (4). The controller is electrically connected to the clamping assembly (1) and the suction bag assembly (2) respectively.

2. The tea leaf automatic packaging apparatus' unpacking mechanism according to claim 1, characterized in that: It also includes a stepping rotary table (3), which has a turntable that can be driven by a table motor to rotate intermittently by a specified angle. Several sets of clamping components (1) are arranged around the turntable. The bag suction component (2) is located above the stepping rotary table (3) and is set directly opposite one of the stepping stations. The controller is electrically connected to the controller.

3. The tea unpacking mechanism of the automatic tea packing apparatus according to claim 2, wherein: The gripper includes a gripper bar (11), a stationary gripper finger (12), a movable gripper finger (13), and a gripper driver. One end of the gripper bar (11) is fixed to the turntable, while the other end is equipped with a stationary gripper finger (12). The movable gripper finger (13) is slidably connected to the gripper bar (11) and is driven by the gripper driver to move closer to or further away from the stationary gripper finger (12).

4. The tea unpacking mechanism of the automatic tea packing apparatus according to claim 3, wherein: The gripper driver is a pneumatic cylinder, hydraulic cylinder, lead screw, or electromagnetic drive module.

5. The tea unpacking mechanism of the automatic tea packing apparatus according to claim 4, wherein: The electromagnetic drive module has an electromagnet (14) and a permanent magnet (15) respectively disposed in the stationary clamping finger (12) and the moving clamping finger (13).

6. The unpacking mechanism of the automatic tea packaging apparatus according to any one of claims 1 to 5, characterized in that: The vacuum adsorption system includes a vacuum generator, a support tube (22) and a flexible conduit. One end of the support tube (22) is equipped with a suction cup (21), and the other end is connected to the vacuum generator through the flexible conduit.

7. The tea unpacking mechanism of the automatic tea packing apparatus according to claim 6, wherein: The suction bag driver is a cylinder, hydraulic cylinder, lead screw, or rack and pinion linear module.

8. The tea unpacking mechanism of the automatic tea packing apparatus according to claim 7, wherein: The gear and rack linear module includes a housing (23), a wheel motor (24), a connecting rod (25), a gear (26), and a rack (27). The gear (26) is rotatably connected inside the housing (23). The gear (26) can be driven to rotate by the wheel motor (24) and has a pair of racks (27) that are slidably connected to the housing (23) on its periphery. The two racks (27) are indirectly connected to the corresponding support tubes (22) through the connecting rods (25) that pass through the housing (23).

Images