Crescent scissors

Abstract

The pair of crescent shears comprises a supporting table, a driving assembly, a fixed crescent shear body and a movable crescent shear body, a position adjusting assembly is fixedly installed at the top of the supporting table and comprises a position adjusting piece and a limiting piece, the position adjusting piece comprises a supporting frame, an installation frame, a sliding supporting rod, a fixed supporting rod and a spring, and limiting holes are formed in the front face and the back face of the supporting frame. Mounting grooves are formed in the two ends of the mounting frame, limiting heads are slidably mounted in the mounting grooves, handles are fixedly mounted on one sides of the limiting heads, sliding grooves are formed in the inner surface of the mounting frame, the limiting heads are driven by holding the handles on the two sides of the mounting frame to extrude the springs to move into the inner side of the supporting frame, and the mounting frame is moved; and after the crescent shear with the proper size moves to the position above the supporting table, the handle is loosened, the spring pushes the limiting head to be clamped into the limiting hole, so that the position of the crescent shear is adjusted and fixed, the corresponding crescent shear can be selected for use according to the size of the copper wire, and the application range of the device is widened.

Description

Technical Field

[0001] The utility model relates to the technical field of crescent scissors, in particular to a pair of crescent scissors. Background Art

[0002] Crescent scissors are a pair of scissors with a special shape. The blade is curved, similar to the shape of a crescent, hence the name. This type of scissors is usually used to cut curved or round items, such as cutting cloth, copper wire or making handicrafts. The special shape of the crescent scissors makes it more convenient to handle curves and circles, and can cut the required shape more accurately. Domestic transformer manufacturers now need to slope flat copper wire during the transformer production process. In the past, the slope was handled manually using files and scissors.

[0003] After searching, the existing patent with publication number: CN209998443U discloses a crescent shear, which is applied to cold-rolled strip production equipment. Two sets of knife boxes are respectively arranged above the guide rails on both sides of the base. The piston rod of the lateral movement oil cylinder drives the knife box to move horizontally on the guide rail. The side of the base is provided with a scale. The pointer on the knife box indicates the lateral movement of the knife box on the scale. The upper knife seat is connected to the guide columns on both sides of it. Sliding bearings are provided between the guide columns and the knife box. The cylinder seat of the lifting hydraulic cylinder is connected to the upper knife seat, the upper shear blade is connected to the upper knife seat, and the lower shear blade is connected to the lower knife seat. The mounting surface of the lower shear blade is a 3° inclined plane. The upper shear blade is a square structure, and the lower shear blade is a rectangular structure. The two lower shear blades are arranged at 90° and cooperate with the upper shear blade to cut off the extra-wide part of the edge of the strip steel at the weld. The utility model can conveniently adjust the appropriate equidistant shearing gap between the upper shear blade and the lower shear blade by rotating the bolt; after the blade is worn, the upper shear blade and the lower shear blade can be rotated or turned over and replaced with other blades for repeated use.

[0004] In the disclosed patent, there is only one size of crescent scissors, while the sizes of copper wires are diverse. The crescent scissors in the crescent scissors device cannot cut copper wires of different diameters and thicknesses, resulting in a lower scope of application of the device. Utility Model Content

[0005] In view of the technical problem that in the existing patents, the size of the crescent scissors is only one, while the sizes of copper wires are diverse, and the crescent scissors in the crescent scissors device cannot cut copper wires of various diameters and thicknesses, resulting in a low application range of the device, the utility model provides a crescent scissors.

[0006] The technical scheme adopted by the utility model is: a crescent shears, comprising a supporting platform, a driving component, a fixed crescent shears and a movable crescent shears, a positioning component is fixedly installed on the top of the supporting platform, the positioning component comprises a positioning part and a limiting part, the positioning part comprises a supporting frame, a mounting frame, a sliding support rod, a fixed support rod and a spring, limiting holes are provided on the front and back sides of the supporting frame, mounting grooves are provided on both ends of the mounting frame, a limiting head is slidably installed inside the mounting groove, a handle is fixedly installed on one side of the limiting head, a sliding groove is provided on the inner surface of the mounting frame, the fixed crescent shears and the movable crescent shears are symmetrically arranged on the left and right, and have different sizes from top to bottom, and are used for cutting copper wires of different sizes, the positioning part is used to adjust the positions of crescent shears of different sizes on the supporting platform, and the limiting part realizes the function of disassembling and replacing the crescent shears.

[0007] Furthermore, the mounting frame is slidably installed inside the supporting frame, the sliding support rod is slidably installed inside the slide groove, the fixed support rod is fixedly installed on one side of the bottom of the mounting frame, the fixed support rod is fixedly connected to the second connecting column, the sliding support rod is fixedly connected to the first connecting column, and the slide groove is used to limit the sliding trajectory of the sliding support rod.

[0008] Furthermore, one end of the spring is fixedly connected to the limit head, and the limit member includes connecting column one, connecting column two, a spacer column and a mounting column. The spring plays a role in automatically resetting the limit head. A spacer column is arranged between each crescent shears to play a role in firmly supporting and limiting the mounting columns on the crescent shears at different positions.

[0009] Furthermore, a connecting groove is provided on the side opposite to the connecting column one and the connecting column two, and the spacer column and the mounting column are slidably installed inside the connecting groove. The connecting groove is used to limit and install the crescent shears, and the mounting column is fixedly connected to the fixed crescent shears and the movable crescent shears.

[0010] Furthermore, the top of the connecting column one and the connecting column two are both provided with an anti-slip groove, an anti-slip cover is slidably installed inside the anti-slip groove, a connecting hole is provided inside the anti-slip cover, a pulling ring is fixed on one side of the anti-slip cover, and the anti-slip cover seals the top of the connecting groove to prevent the crescent scissors from detaching from the connecting groove.

[0011] Furthermore, a ball club is fixedly mounted on one side of the connecting column 1 and the connecting column 2, and a vertical groove is provided on one side of the connecting column 1, and a sliding block is slidably mounted inside the vertical groove.

[0012] Furthermore, a through groove is provided on the top of the support table, and a waste box is arranged on the inner side of the support table. The driving assembly includes a foot-operated control switch, an oil cylinder and a pneumatic hydraulic pump. A 700BAR pressure oil cylinder is selected as the driving head (increasing the driving head pressure and reducing the driving head weight). The positioning part of the device is made of 7075 aluminum alloy, which is light in weight. The equipment panel has a scale display to increase the bending accuracy. The device is connected to the hydraulic pump station through an oil pipe for easy operation.

[0013] The beneficial effect of the utility model is as follows: compared with the prior art, in the utility model, by holding the handles on both sides of the mounting frame, the limit head is driven to squeeze the spring until it moves into the inner side of the support frame, the mounting frame is moved to a position, and the handle is released after the crescent shears of appropriate size are moved above the support platform, and the spring will push the limit head to fit into the limit hole, thereby adjusting and fixing the position of the crescent shears, and the corresponding crescent shears can be selected for use according to the size of the copper wire, thereby helping to increase the scope of application of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a three-dimensional structural schematic diagram of the utility model;

[0015] Figure 2 It is a partial cross-sectional view of the position adjustment component in the utility model;

[0016] Figure 3 yes Figure 2 The enlarged schematic diagram of the middle A part;

[0017] Figure 4 It is a split cross-sectional view of the position adjustment component in the utility model;

[0018] Figure 5 yes Figure 4 Enlarged schematic diagram of part B in the middle.

[0019] The following are marked in the figure: 1, support platform; 2, drive assembly; 201, foot control switch; 202, oil cylinder; 203, pneumatic hydraulic pump; 3, fixed crescent shears; 4, movable crescent shears; 5, adjustment assembly; 501, adjustment piece; 5011, support frame; 5012, mounting frame; 5013, sliding support rod; 5014, fixed support rod; 5015, spring; 5016, limit hole; 5017, mounting slot; 5 018, limit head; 5019, handle; 50110, slide groove; 502, limit piece; 5021, connecting column one; 5022, connecting column two; 5023, spacer column; 5024, mounting column; 5025, connecting groove; 5026, anti-drop groove; 5027, anti-drop cover; 5028, connecting hole; 5029, ball rod; 50210, vertical groove; 50211, slider; 6, through groove; 7, waste box. DETAILED DESCRIPTION

[0020] In the description of the present invention, it should be noted that the terms "front", "up", "down", "left", "right", "vertical", "horizontal", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, they cannot be understood as limitations on the present invention.

[0021] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a direct connection, or an indirect connection through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0022] The following is combined with Figure 1-5 The utility model is further described.

[0023] In order to solve the problems existing in the background technology, the present application proposes the following technical solution: a pair of crescent scissors.

[0024] The specific technical scheme includes a support platform 1, a driving component 2, a fixed crescent shears 3 and a movable crescent shears 4. A positioning component 5 is fixedly installed on the top of the support platform 1. The positioning component 5 includes an adjusting member 501 and a limiting member 502. The positioning member 501 includes a support frame 5011, a mounting frame 5012, a sliding support rod 5013, a fixed support rod 5014 and a spring 5015. Limiting holes 5016 are provided on the front and back of the support frame 5011. Both ends of the mounting frame 5012 are provided with mounting grooves 5017. A limiting head 5018 is slidably installed inside the mounting groove 5017. A handle 5019 is fixedly installed on one side of the limiting head 5018. A sliding groove 50110 is provided on the inner surface of the mounting frame 5012. The positioning component 501 is convenient for quickly adjusting and fixing the position of the crescent shears. The corresponding crescent shears can be selected according to the size of the copper wire for use, thereby increasing the scope of application of the device.

[0025] The mounting frame 5012 is slidably installed inside the supporting frame 5011, the sliding support rod 5013 is slidably installed inside the slide groove 50110, the fixed support rod 5014 is fixedly installed on one side of the bottom of the mounting frame 5012, and one end of the spring 5015 is fixedly connected to the limit head 5018. The limit member 502 includes a connecting column 1 5021, a connecting column 2 5022, a spacer column 5023 and a mounting column 5024. The limit member 502 serves to facilitate the re-sharpening of the crescent shears for use later, or to directly replace them with new ones, so as to prevent the crescent shears from being insufficiently sharp and affecting the cutting flatness of the copper wire.

[0026] A connecting groove 5025 is provided on the side opposite to the connecting column 1 5021 and the connecting column 2 5022. The spacer column 5023 and the mounting column 5024 are slidably mounted inside the connecting groove 5025. Anti-slip grooves 5026 are provided on the tops of the connecting column 1 5021 and the connecting column 2 5022. Anti-slip covers 5027 are slidably mounted inside the anti-slip grooves 5026. A connecting hole 5028 is provided inside the anti-slip cover 5027. A ball bar 5029 is fixedly mounted on the side away from the connecting column 1 5021 and the connecting column 2 5022. A vertical groove 50210 is provided on one side of the connecting column 5021, and a slider 50211 is slidably installed inside the vertical groove 50210. After the crescent scissors have been used for a long time, the sharpness will be reduced to a certain extent. At this time, the anti-detachment cover 5027 can be pulled to the side of the top of the connecting groove 5025 through the pull ring, and the ball rod 5029 will be detached from the connecting hole 5028, so that the installation column 5024 and the spacing column 5023 can be taken out along the connecting groove 5025, and the crescent scissors can be taken out together, so that the crescent scissors can be re-sharpened and installed for use later.

[0027] A through slot 6 is provided on the top of the support platform 1, and a waste box 7 is provided on the inner side of the support platform 1. The driving assembly 2 includes a foot control switch 201, a cylinder 202 and a pneumatic hydraulic pump 203. The pneumatic hydraulic pump 203 is controlled by the foot control switch 201. One end of the telescopic rod of the cylinder 202 is fixed on the slider 50211. When the connecting column 5021 is raised and lowered with the mounting frame 5012, the slider 50211 slides in the vertical slot 50210 without interfering with the cylinder 202 and the slider 502. 11, put the copper wire between the fixed crescent shear 3 and the movable crescent shear 4, control the oil cylinder 202 to start by the foot control switch 201, the oil cylinder 202 will drive the connecting column 5021 to shear the copper wire section that needs to be sheared arc under the limit of the sliding support rod 5013 and the slide groove 50110, there will be no burr and it will be flat after shearing, the cut waste will fall into the waste box 7, the pneumatic hydraulic pump 203 will release the pressure, the oil cylinder 202 will return to its position, and the device completes a work.

[0028] In order for those skilled in the art to fully understand the technical solution, this application makes the following overall summary:

[0029] When in use, according to the size of the copper wire, the corresponding crescent shears for cutting are adjusted to the position closest to the upper surface of the support platform 1 to facilitate cutting and prevent waste from splashing to the outside of the waste box 7 when the copper wire is cut at a high place. Hold the handles 5019 on both sides of the mounting frame 5012, and the handles 5019 drive the limit head 5018 to squeeze the spring 5015 until the limit head 5018 moves to the inner side of the support frame 5011. The mounting frame 5012 can then be moved at will. After the appropriate crescent shears are moved above the support platform 1, the limit head 5018 corresponds to one of the limit holes 5016. Release the handle 5019, and the spring 5015 will push the limit head 5018 into the limit hole 5016, so that the position of the mounting frame 5012 and the crescent shears can be adjusted and fixed. The corresponding crescent shears can be selected for use according to the size of the copper wire to increase the scope of application of the device.

[0030] The standard parts used in the utility model can be purchased from the market, and special-shaped parts can be customized according to the description in the specification and the drawings. The specific connection methods of each part adopt the conventional means such as mature bolts, rivets, welding, etc. in the prior art. The machinery, parts and equipment all adopt the conventional models in the prior art, and the circuit connection adopts the conventional connection method in the prior art, which will not be described in detail here. The content not described in detail in this specification belongs to the prior art known to professional and technical personnel in this field.

[0031] Although the embodiments of the present invention have been shown and described, it will be apparent to those skilled in the art that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A crescent scissors, comprising a support platform (1), a drive assembly (2), a fixed crescent scissors (3) and a movable crescent scissors (4), characterized in that: A positioning assembly (5) is fixedly mounted on the top of the support platform (1), the positioning assembly (5) comprising a positioning member (501) and a limiting member (502), the positioning member (501) comprising a support frame (5011), a mounting frame (5012), a sliding support rod (5013), a fixed support rod (5014) and a spring (5015), the front and back sides of the support frame (5011) are both provided with limiting holes (5016), both ends of the mounting frame (5012) are provided with mounting grooves (5017), a limiting head (5018) is slidably mounted inside the mounting groove (5017), a handle (5019) is fixedly mounted on one side of the limiting head (5018), and a sliding groove (50110) is provided on the inner surface of the mounting frame (5012).

2. A crescent scissors according to claim 1, characterized in that: The mounting frame (5012) is slidably mounted inside the supporting frame (5011), the sliding support rod (5013) is slidably mounted inside the sliding groove (50110), and the fixed support rod (5014) is fixedly mounted on one side of the bottom of the mounting frame (5012).

3. A crescent scissors according to claim 2, characterized in that: One end of the spring (5015) is fixedly connected to the limit head (5018), and the limit member (502) comprises a connecting column 1 (5021), a connecting column 2 (5022), a spacing column (5023) and a mounting column (5024).

4. A crescent scissors according to claim 3, characterized in that: A connecting groove (5025) is provided on one side of the connecting column 1 (5021) and the connecting column 2 (5022) opposite to each other, and the spacer column (5023) and the mounting column (5024) are both slidably mounted inside the connecting groove (5025).

5. A crescent scissors according to claim 4, characterized in that: The top ends of the connecting column 1 (5021) and the connecting column 2 (5022) are both provided with anti-slip grooves (5026), the interior of the anti-slip grooves (5026) is slidably provided with anti-slip covers (5027), and the interior of the anti-slip covers (5027) is provided with connecting holes (5028).

6. The crescent scissors according to claim 3, characterized in that: A ball bar (5029) is fixedly installed on one side of the connecting column 1 (5021) and the connecting column 2 (5022). A vertical groove (50210) is opened on one side of the connecting column 1 (5021), and a sliding block (50211) is slidably installed inside the vertical groove (50210).

7. The crescent scissors according to claim 1, characterized in that: The top of the support platform (1) is provided with a through slot (6), the inner side of the support platform (1) is provided with a waste box (7), and the drive assembly (2) comprises a foot control switch (201), an oil cylinder (202) and a pneumatic hydraulic pump (203).

Images