Bag opening device

Abstract

The utility model relates to the technical field of power distribution network warehouses, and provides a bag opening device which is characterized in that clamping devices are arranged on shear head blades on an electric hydraulic shear knife; the clamping device comprises a connecting block with one end detachably connected with the blade, a sliding rod with one end slidably connected with the vacant end of the connecting block, a clamping block detachably connected with the vacant end of the sliding rod and a spring arranged between the clamping block and the connecting block, and when the electric hydraulic shear knife shears a bag opening, the clamping block makes contact with the bag opening before the blade, the clamping block tightly presses the bag opening, and the bag opening is clamped by the spring. The bag opening is prevented from sliding, and the electric hydraulic shear knife shears; a U-shaped groove is formed in the end, connected with the blade, of the connecting block, the blade is arranged in the U-shaped groove, a second connecting part extends below the U-shaped groove of the connecting block, a sliding rod is connected to the second connecting part in a sliding mode, a clamping block is detachably connected to the vacant end of the sliding rod, and a spring is arranged between the clamping block and the connecting block. Clamping blocks are arranged above and below the shearing position of the blade for pressing, so that the shearing effect can be better improved.

Description

Technical Field

[0001] The utility model relates to the technical field of distribution network warehouses, in particular to a bag opening device. Background Art

[0002] Distribution network warehouses are mainly used for safely storing and managing electric power materials, ensuring the timely supply and effective allocation of materials, and supporting the construction and maintenance of distribution networks; in the logistics of distribution network warehouses, it is generally divided into processes such as warehousing, inventory management, order processing, picking and packing, and outbound. In the warehousing process, some electric power materials are packaged in bags. When warehousing, in order to count the warehoused materials, the bags need to be cut open. In this process, it is very inconvenient that generally one person needs to hold the bag tightly and another person cuts it.

[0003] Therefore, there is an urgent need for a logistics system for power grid material warehouses to solve the problems existing in the prior art. Content of the Utility Model

[0004] The purpose of the utility model is to solve the deficiencies of the prior art and provide a bag opening device to improve the bag opening efficiency.

[0005] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0006] A bag opening device includes a robotic arm, a bag opening device, and a connecting flange connecting the robotic arm and the bag opening device; the bag opening device includes a connecting plate detachably connected to the connecting flange, an electric hydraulic shear knife arranged at the bottom of the connecting plate, and a clamping device detachably connected to the electric hydraulic shear knife. The electric hydraulic shear knife is provided with a pair of scissors heads, and each scissors head is composed of two hinged blades. Clamping devices are arranged above both blades;

[0007] The clamping device includes a connecting block with one end detachably connected to the blade, a sliding rod with one end slidably connected to the free end of the connecting block, a clamping block detachably connected to the free end of the sliding rod, and a spring arranged between the clamping block and the connecting block; a limiting platform is arranged at the end of the sliding rod protruding out of the connecting block.

[0008] Preferably, the connecting plate includes a mounting plate detachably connected to the connecting flange, a fixing block arranged below the mounting plate, and a pressing plate detachably connected to the fixing block; the electric hydraulic shear knife is connected to the fixing block through the pressing plate.

[0009] Preferably, a battery is arranged at the end of the electric hydraulic shear knife.

[0010] Preferably, a U-shaped groove is formed at the connection end of the connecting block and the blade, and the blade is placed inside the U-shaped groove.

[0011] Preferably, a second connecting portion extends below the U-shaped groove of the connecting block. A sliding rod is slidably connected to the second connecting portion. A clamping block is detachably connected to the free end of the sliding rod, and a spring is provided between the clamping block and the connecting block.

[0012] Preferably, a plurality of anti-slip lines are provided on the side of the clamping block in contact with the bag body.

[0013] Preferably, a housing is provided outside the electric hydraulic shear.

[0014] The present utility model discloses a bag opening device with the following beneficial effects.

[0015] First, in the present utility model, clamping devices are provided on the scissor head blades of the electric hydraulic shear. The clamping device includes a connecting block with one end detachably connected to the blade, a sliding rod with one end slidably connected to the free end of the connecting block, a clamping block detachably connected to the free end of the sliding rod, and a spring provided between the clamping block and the connecting block. When the electric hydraulic shear cuts the bag opening, the clamping block contacts the bag opening prior to the blade. The clamping block presses the bag opening under the support of the spring to prevent the bag opening from sliding. At this time, the electric hydraulic shear performs the cutting.

[0016] Second, in order to further prevent the bag opening from slipping during cutting and improve the cutting effect, a U-shaped groove is provided at the connection end of the connecting block and the blade. The blade is placed inside the U-shaped groove. A second connecting portion extends below the U-shaped groove of the connecting block. A sliding rod is slidably connected to the second connecting portion. A clamping block is detachably connected to the free end of the sliding rod, and a spring is provided between the clamping block and the connecting block. When the electric hydraulic shear cuts the bag opening, the clamping blocks press on both the upper and lower cutting positions of the blade. At this time, it does not completely rely on the weight of the materials to pull down tightly, and can better improve the cutting effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the overall structure of the present utility model.

[0018] Figure 2 It is a schematic diagram of the overall structure of the electric hydraulic shear and the clamping device of the present utility model.

[0019] Figure 3 It is a schematic diagram of the overall structure of the electric hydraulic shear and the clamping device of the present utility model after removing the housing.

[0020] Figure 4 It is a schematic diagram of the overall structure of the clamping device of the present utility model after adding the clamping block.

[0021] In the accompanying drawings: 1. robotic arm; 2. connecting flange; 3. bag-opening device; 31. connecting plate; 311. mounting plate; 312. reinforcing block; 313. fixing block; 314. pressing plate; 32. electric hydraulic shearing knife; 321. battery; 322. scissor head; 33. clamping device; 331. connecting block; 332. clamping block; 333. sliding rod; 334. spring; 34. housing. Detailed implementation mode

[0022] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments.

[0023] In the description of the present invention, it should be understood that the orientation or positional relationship indicated by the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", etc. is based on the orientation or positional relationship shown in the accompanying drawings, and is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of the present invention. Embodiment

[0024] Refer to Figure 1 , a bag-opening device, including a robotic arm 1, a bag-opening device 3, and a connecting flange 2 connecting the robotic arm 1 and the bag-opening device 3; the connecting flange 2 is connected to the robotic arm 1 and the bag-opening device 3 by bolts, and the bag-opening device 3 is fixed to the end of the robotic arm 1 through the connecting flange 2. The robotic arm 1 has multiple degrees of freedom, and a four-axis robotic arm 1, a five-axis robotic arm 1, or a six-axis robotic arm 1 can be selected according to the actual warehouse budget and actual needs. In this embodiment, the robotic arm 1 uses a GCR20-1400 robotic arm 1, its effective load is 16 kg, it has 6 rotational degrees of freedom, and the single-arm horizontal working space is 1400 mm. Refer to Figure 2 , the bag-opening device 3 includes a connecting plate 31 detachably connected to the connecting flange 2 by bolts, an electric hydraulic shearing knife 32 provided at the bottom of the connecting plate 31, and a clamping device 33 detachably connected to the electric hydraulic shearing knife 32 by bolts. The electric hydraulic shearing knife 32 is provided with a scissor head 322, and the scissor head 322 is composed of two hinged blades, and clamping devices 33 are arranged above both blades; the electric hydraulic shearing knife 32 can select a finished electric shearing device with a scissor head 322, and the clamping device 33 is fixed on the shearing blade. In this embodiment, a STILOS40 rechargeable hydraulic cutter is used.

[0025] Please refer to Figure 2 and Figure 3, the clamping device 33 includes a connecting block 331 with one end detachably connected to the blade by a bolt, a sliding rod 333 with one end slidably connected to the vacant end of the connecting block 331, a clamping block 332 detachably connected to the vacant end of the sliding rod 333 by a bolt, and a spring 334 disposed between the clamping block 332 and the connecting block 331; a section of the sliding rod 333 and the connecting block 331 is sleeved and passes out of the connecting block 331. In order to prevent the sliding rod 333 from slipping out, a limiting platform is provided at one end of the sliding rod 333 passing out of the connecting block 331; it is worth noting that since the two blades of the scissor head 322 of the electro-hydraulic shear 32 are generally arranged in layers, in order to align the clamping blocks 332 in the clamping devices 33 installed on the two blades, the lengths of the connecting blocks 331 respectively provided on the two blades are inconsistent, and the length of the connecting block 331 is determined by ensuring that the clamping blocks 332 can be aligned. Preferably, in this embodiment, two sliding rods 333 are arranged in parallel, and the corresponding clamping blocks 332 are lengthened, so as to increase the contact area between the clamping blocks 332 and the bag mouth and improve the clamping effect. When the electro-hydraulic shear 32 shears the bag mouth, the clamping block 332 contacts the bag mouth prior to the blade. The clamping block 332 presses the bag mouth under the support of the spring 334. The spring 334 is sleeved on the sliding rod 333. When the ends of the clamping blocks 332 respectively provided on the two blades are mutually extruded, one end of the sliding rod 333 passes out of the connecting block 331. At this time, the pressing force between the two pressing blocks is determined by the elastic coefficient of the spring 334 to prevent the bag mouth from sliding. At this time, the electro-hydraulic shear 32 performs shearing.

[0026] As Figure 3 shown, the connecting plate 31 includes a mounting plate 311 detachably connected to the connecting flange 2. The mounting plate 311 is formed by cross-splicing two rectangular plates, a fixing block 313 integrally provided below the mounting plate 311, and a pressing plate 314 detachably connected to the fixing block 313 by a bolt; a reinforcing block 312 is connected by a bolt at the cross-splicing position of the two rectangular plates. A circular cavity is formed between the fixing block 313 and the pressing plate 314 after connection. The electro-hydraulic shear 32 is placed in the circular cavity and connected by the pressing plate 314 and the fixing block 313.

[0027] For the convenience of use, a quick-release battery 321 is provided at the end of the electro-hydraulic shear 32.

[0028] As Figure 4As shown in the figure, in order to make the connection between the connecting block 331 and the blade more stable, a U-shaped groove is provided at the connection end of the connecting block 331 and the blade. The blade is placed inside the U-shaped groove, and the connecting block 331 and the blade are connected by bolts. Specifically, the connecting block 331 and the blade are provided with mounting holes with the same aperture and alignment, and bolts are sleeved in the mounting holes. To further prevent the bag mouth from slipping during shearing and improve the shearing effect, a second connecting portion extends below the U-shaped groove of the connecting block 331. A sliding rod 333 is slidably connected to the second connecting portion. A clamping block 332 is detachably connected to the empty end of the sliding rod 333. A spring 334 is provided between the clamping block 332 and the connecting block 331. Thus, clamping blocks 332 are provided at both the upper and lower ends of the scissor head 322 of the electric hydraulic shear 32 to clamp the bag mouth, and during shearing, it does not rely entirely on the weight of the material to pull down tightly, which can better improve the shearing effect.

[0029] To prevent the clamping block 332 from slipping off the bag mouth, anti-slip lines are provided on the side of the clamping block 332 in contact with the bag body. The anti-slip lines can be selected as strip lines, cross lines, etc. A housing 34 is provided outside the electric hydraulic shear 32.

[0030] The above are only the preferred embodiments of the present invention, but the protection scope of the present invention is not limited thereto. The substitution can be the substitution of some structures, devices, and method steps, or a complete technical solution. Any equivalent substitution or change made according to the technical solution of the present invention and its inventive concept should be covered within the protection scope of the present invention.

Claims

1. A bag-opening device, characterized in that, It includes a robotic arm (1), a bag-opening device (3), and a connecting flange (2) connecting the robotic arm (1) and the bag-opening device (3); the bag-opening device (3) includes a connecting plate (31) detachably connected to the connecting flange (2), an electro-hydraulic shearing knife (32) provided at the bottom of the connecting plate (31), and a clamping device (33) detachably connected to the electro-hydraulic shearing knife (32). A shearing head (322) is provided on the electro-hydraulic shearing knife (32), and the shearing head (322) is composed of two hinged blades. Clamping devices (33) are arranged above both blades. The clamping device (33) includes a connecting block (331) with one end detachably connected to the blade, a sliding rod (333) with one end slidably connected to the free end of the connecting block (331), a clamping block (332) detachably connected to the free end of the sliding rod (333), and a spring (334) provided between the clamping block (332) and the connecting block (331); a limiting platform is provided at one end of the sliding rod (333) passing through the connecting block (331).

2. The bag opening device according to claim 1, wherein, The connecting plate (31) includes a mounting plate (311) detachably connected to the connecting flange (2), a fixing block (313) provided below the mounting plate (311), and a pressing plate (314) detachably connected to the fixing block (313); the electro-hydraulic shearing knife (32) is connected to the fixing block (313) through the pressing plate (314).

3. The bag opening device according to claim 1 or 2, characterized in that, A battery (321) is provided at the end of the electro-hydraulic shearing knife (32).

4. The bag opening device according to claim 1, wherein, A U-shaped groove is formed at the connection end of the connecting block (331) and the blade, and the blade is placed inside the U-shaped groove.

5. The bag opening device according to claim 4, characterized in that, A second connecting portion extends below the U-shaped groove of the connecting block (331). A sliding rod (333) is slidably connected to the second connecting portion. A clamping block (332) is detachably connected to the free end of the sliding rod (333), and a spring (334) is provided between the clamping block (332) and the connecting block (331).

6. The bag opening device according to claim 1 or 5, characterized in that, A number of anti-slip lines are provided on the side of the clamping block (332) in contact with the bag body.

7. The bag opening device according to claim 1, wherein, A housing (34) is provided outside the electro-hydraulic shearing knife (32).

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