A positioning cutting device for metal chain processing

Abstract

The present invention belongs to the technical field of metal chain cutting devices, specifically a positioning and cutting device for metal chain processing, comprising an equipment main body and an arc-shaped cylinder, a mobile cutting machine movably installed on the other side of the equipment main body, the positioning device comprising a U-shaped plate, a driving structure and two U-shaped clamps, the driving structure is used to drive the two U-shaped clamps to move toward each other in a circular manner to make contact, the two U-shaped clamps are internally installed with a structure that contacts the hollow position of the metal chain, the two U-shaped clamps can be driven by the driving structure to move toward each other in a circular manner, which will cause the horizontal height of the two U-shaped clamps to drop, and the descent of the two U-shaped clamps will drag the chain downward through the structure that contacts the hollow position of the metal chain, so that the chain is straightened at this time, and the straightened chain is cut by the movable mobile cutting machine at this time, which can effectively avoid the situation in traditional technology where the chain is prone to abnormal movement resulting in poor cutting effect.

Description

Technical Field

[0001] The invention belongs to the field of metal chain cutting devices, in particular to a positioning cutting device used for metal chain processing. Background Art

[0002] A metal chain is a flexible component made up of metal links or rings connected to each other. It is widely used in various mechanical devices such as transmission, conveying, and lifting. During production and use, in order to meet specific length requirements, the metal chain usually needs to be cut. The most common way to cut metal chains is to use rotating disc knife cutting technology. In this process, the metal chain is accurately fed into the cutting area of ​​the rotating disc knife through a feeding mechanism. When the metal chain comes into contact with the high-speed rotating disc knife, the sharp edge of the disc knife can instantly and efficiently cut the chain, achieving precise cutting of the chain.

[0003] A patent document with publication number CN219703634U discloses a cutting device for metal chain processing, including a workbench, a mounting frame, a driving cylinder and a first L-shaped rod. A cutting machine is fixedly installed at the bottom of the first L-shaped rod, connecting rods are fixedly installed on both sides of the first L-shaped rod, and a sliding sleeve is fixedly installed on the end of the connecting rod away from the first L-shaped rod. A sliding rod is inserted into the inside of the sliding sleeve, and the top of the sliding rod is fixedly connected to the top inside the mounting frame. Four supporting legs are fixedly installed at the bottom of the workbench.

[0004] In traditional technology, when cutting a metal chain, the metal chain is generally first transported to the cutting position with the help of a transmission structure. At this time, the metal chain is in a hanging state, and its side is fixed by a support frame. Then, the cutting device performs the cutting operation on the metal chain. However, this traditional method has obvious defects. When the cutting device contacts the metal chain, the chain is prone to movement. This movement will directly affect the cutting accuracy, resulting in an uneven cutting surface, which in turn affects the quality of the metal chain after cutting and its subsequent performance, and is not conducive to ensuring the stability and reliability of the cutting operation.

[0005] To this end, the present invention provides a positioning and cutting device for metal chain processing to solve the problems in the above-mentioned background technology. Summary of the Invention

[0006] The technical solution adopted by the present invention to solve the technical problem is as follows: a positioning and cutting device for metal chain processing according to the present invention comprises an equipment body and an arc-shaped cylinder fixedly mounted on the upper side of the equipment body, a conveying plate and a conveying frame are also fixedly mounted on the upper side of the equipment body, a mobile cutting machine is movably mounted on the other side of the equipment body, and a positioning device is also fixedly mounted on the same side of the equipment body, and the positioning device is located below the mobile cutting machine;

[0007] The positioning device includes a U-shaped plate fixedly mounted on the side of the equipment body, a driving structure installed on one side of the U-shaped plate, the driving structure is located inside the equipment body, and two U-shaped clamps are movably mounted on the other side of the U-shaped plate, the driving structure is used to drive the two U-shaped clamps to move toward each other in a circular motion to make contact, and a structure is installed inside the two U-shaped clamps that contacts the hollow position of the metal chain.

[0008] Preferably, a positioning wheel and a feed barrel are installed on the side of the conveying frame, and the feed barrel is located below the positioning wheel, and the feed barrel is located above the mobile cutting machine.

[0009] Preferably, the feed cylinder includes a vertical cylinder fixedly connected to the conveying frame, a flaring cylinder is fixedly installed above the vertical cylinder, and a strip-shaped discharge port is fixedly installed below the vertical cylinder, and the flaring cylinder, vertical cylinder and strip-shaped discharge port are all hollow.

[0010] Preferably, the conveying plate includes an engaging wheel movably mounted on one side of the conveying plate and a conveying wheel, an upper inclined plate is fixedly mounted on the side of the conveying wheel, and one end of the upper inclined plate is fixedly connected to the inside of the positioning wheel.

[0011] Preferably, the driving structure includes a driving rod forward and reverse motor fixedly installed inside the main body of the device, one end of the driving rod forward and reverse motor is connected to a driving gear through a shaft, two driving gears are provided, the two driving gears are meshed with each other, and the two driving gears are at the same horizontal height, two driven rings are movably installed on the side of the U-shaped plate, the two driven rings are connected to the U-shaped clamping plate, and the rotation of the driving gear drives the driven ring to perform circular motion.

[0012] Preferably, a connecting rod is fixedly installed on the side of the driven ring, one end of which is connected to the side of the U-shaped clamping plate. Two guide structures are also installed on the side of the U-shaped plate, and the guide structures are used to plan the movement path of the driven ring.

[0013] Preferably, two through grooves are opened inside the U-shaped plate, and a driving rod forward and reverse motor is fixedly installed at a non-center position on the side of the driving gear. The driving rod forward and reverse motor is inside the through groove and contacts the inner wall of the driven ring.

[0014] Preferably, the guide structure includes a fixed bar fixedly installed above the driven ring, a lifting groove is provided inside the fixed bar, a fixed block is installed on the side of the fixed bar, and the fixed block is fixedly connected to the side of the U-shaped plate, a displacement groove is provided inside the fixed block, a displacement rod is slidably installed inside the displacement groove, one end of the displacement rod is lifted and installed inside the lifting groove, the lifting groove is connected to the displacement rod by a spring return structure, and the displacement groove is connected to the displacement rod by a spring return structure.

[0015] Preferably, an inner cavity groove is provided inside the U-shaped splint, an air delivery pipe is fixedly installed inside the inner cavity groove, one end of the air delivery pipe is connected to an external air pump, a component plate is fixedly installed inside the inner cavity groove, and a rubber gasket is fixedly installed on the side of the U-shaped splint facing the chain, and a plurality of cylindrical grooves are provided inside the rubber gasket.

[0016] Preferably, a plurality of pneumatic grooves are opened through the interior of the component plate, and a plurality of the cylindrical grooves pass through the U-shaped clamping plate and are connected to the plurality of pneumatic grooves. A drive shaft is slidably installed inside the pneumatic groove, and a fixing ring is fixedly installed at one end of the interior of the pneumatic groove facing away from the rubber gasket. A connecting spring is fixedly installed on the side of the fixing ring, and one end of the connecting spring is fixedly connected to the end of the drive shaft.

[0017] The beneficial effects of the present invention are as follows:

[0018] 1. The positioning and cutting device for metal chain processing described in the present invention, under the action of gravity, the hanging chain is located between the two U-shaped clamps, and the two U-shaped clamps can be driven by the driving structure to move toward each other in a circular motion until the two U-shaped clamps come into contact with the chain and the chain is stopped. At this time, the two U-shaped clamps continue to move toward each other in a circular motion, which will cause the horizontal height of the two U-shaped clamps to drop. Through the structure that contacts the hollow position of the metal chain, the descent of the two U-shaped clamps will drag the chain downward, so that the chain is straightened at this time. At this time, the straightened chain is cut by a movable mobile cutting machine, which can effectively avoid the situation in traditional technology where the chain is prone to abnormal movement resulting in poor cutting effect.

[0019] 2. The positioning and cutting device for metal chain processing described in the present invention has teeth arranged on the outer side of the meshing wheel, and the teeth arranged on the outer side of the meshing wheel can mesh with the hollow position of the chain, so that the chain meshed on the outer side of the meshing wheel can be stably transmitted to the conveying wheel. The chain after being transmitted by the conveying wheel is on the upper inclined plate and then conveyed to the positioning wheel. The chain after passing through the positioning wheel can be in a hanging state, and the hanging chain is conveyed into the inside of the strip discharge port through the expanding cylinder and the vertical cylinder. The metal chain is generally flat. After the metal chain passes through the strip discharge port, it can be ensured that the metal chain below the strip discharge port can be clamped by the two U-shaped clamps, and at this time the hollow position of the metal chain is facing the two U-shaped clamps.

[0020] 3. The positioning and cutting device for metal chain processing described in the present invention, when the two U-shaped clamps continue to move toward each other in a circular motion to clamp, first the rubber gasket is squeezed, and the part that the end of some drive shafts may contact is transformed from a metal part to a hollow part, but the drive shaft in the hollow part of the metal chain will not be transformed into a part that contacts the metal. At this time, multiple drive shafts in the hollow part of the metal chain will cause the two U-shaped clamps to continue to move toward each other in a circular motion, driving the metal chain to move downward, so that the metal chain is straightened, which is beneficial to subsequent cutting work. The setting of multiple drive shafts in this device can make the two U-shaped clamps, no matter where they clamp the metal chain, eventually make the bottom of the fully extended drive shaft contact with the hollow lower end of the metal chain. At this time, the U-shaped clamps continue to move in a circular motion, and the decrease in their horizontal height straightens the metal chain, which is convenient for subsequent cutting. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] The present invention will be further described below with reference to the accompanying drawings.

[0022] Figure 1 It is an overall stereogram of the present invention;

[0023] Figure 2 It is a three-dimensional schematic diagram of the mobile cutting machine and the feeding barrel in the present invention;

[0024] Figure 3 It is a three-dimensional schematic diagram of the feeding barrel and the positioning device in the present invention;

[0025] Figure 4 It is a three-dimensional schematic diagram of the positioning device in the present invention;

[0026] Figure 5 It is a three-dimensional schematic diagram of the U-shaped clamping plate and the driven ring in the present invention;

[0027] Figure 6 It is a three-dimensional schematic diagram of the guide structure in the present invention;

[0028] Figure 7 It is a three-dimensional schematic diagram of the U-shaped splint in the present invention;

[0029] Figure 8 It is a three-dimensional schematic diagram of the component plate in the present invention.

[0030] Figure: 1. Equipment body; 11. Curved cylinder; 2. Conveyor plate; 21. Engaging wheel; 22. Conveyor wheel; 23. Upper inclined plate; 3. Conveyor frame; 31. Positioning wheel; 32. Feeding cylinder; 321. Expanding cylinder; 322. Vertical cylinder; 323. Strip-shaped discharge port; 4. Mobile cutting machine; 5. Positioning device; 51. U-shaped plate; 511. Through slot; 52. Driving structure; 521. Driving rod; 521. Forward and reverse motor; 522. Driving gear Wheel; 53, U-shaped splint; 531, inner cavity groove; 5311, air delivery pipe; 532, component plate; 5321, drive shaft; 5322, pneumatic groove; 5323, fixing ring; 5324, connecting spring; 533, rubber gasket; 534, cylindrical groove; 54, driven ring; 55, guide structure; 551, fixing bar; 5511, lifting groove; 552, displacement rod; 553, fixing block; 5531, displacement groove; 56, connecting rod. DETAILED DESCRIPTION

[0031] In order to make the technical means, creative features, objectives and effects achieved by the present invention easier to understand, the present invention is further described below in conjunction with specific implementation methods.

[0032] Example 1: Figure 1-Figure 3 As shown, a positioning and cutting device for metal chain processing according to an embodiment of the present invention includes an equipment body 1 and an arc-shaped cylinder 11 fixedly mounted on the upper side of the equipment body 1. A conveying plate 2 and a conveying frame 3 are also fixedly mounted on the upper side of the equipment body 1. A mobile cutting machine 4 is movably mounted on the other side of the equipment body 1. A positioning device 5 is also fixedly mounted on the same side of the equipment body 1 and is located below the mobile cutting machine 4.

[0033] The positioning device 5 includes a U-shaped plate 51 fixedly installed on the side of the equipment body 1, and a driving structure 52 is installed on one side of the U-shaped plate 51. The driving structure 52 is located inside the equipment body 1, and two U-shaped clamps 53 are movably installed on the other side of the U-shaped plate 51. The driving structure 52 is used to drive the two U-shaped clamps 53 to move toward each other in a circular motion to make contact. The two U-shaped clamps 53 are internally installed with a structure that contacts the hollow position of the metal chain.

[0034] Specifically, a large amount of chain accumulates at the lower position of the arc cylinder 11. At this time, one end of the chain is conveyed by the conveying plate 2 and the conveying frame 3 through the arc cylinder 11. The chain after being conveyed by the conveying frame 3 is in a hanging shape. Under the action of gravity, the hanging chain is in the position between the two U-shaped clamps 53. The two U-shaped clamps 53 can be driven by the driving structure 52 to move toward each other in a circular motion until the two U-shaped clamps 53 contact the chain and stop conveying the chain. At this time, the two U-shaped clamps 53 continue to move toward each other in a circular motion, which will cause the horizontal height of the two U-shaped clamps 53 to drop. Through the structure that contacts the hollow position of the metal chain, the descent of the two U-shaped clamps 53 will drag the chain downward, so that the chain is straightened at this time. At this time, the straightened chain is cut by the movable mobile cutting machine 4, which can effectively avoid the situation in which the chain is prone to abnormal movement and the cutting effect is poor in the traditional technology.

[0035] like Figure 1 and Figure 3 As shown, a positioning wheel 31 and a feeding cylinder 32 are installed on the side of the conveying frame 3 . The feeding cylinder 32 is located below the positioning wheel 31 and above the mobile cutting machine 4 .

[0036] The feed cylinder 32 includes a vertical cylinder 322 fixedly connected to the conveying frame 3, a flaring cylinder 321 is fixedly installed above the vertical cylinder 322, and a strip-shaped discharge port 323 is fixedly installed below the vertical cylinder 322. The flaring cylinder 321, the vertical cylinder 322 and the strip-shaped discharge port 323 are all hollow.

[0037] The conveying plate 2 includes a meshing wheel 21 and a conveying wheel 22 movably mounted on one side of the conveying plate 2 . An upper inclined plate 23 is fixedly mounted on the side of the conveying wheel 22 . One end of the upper inclined plate 23 is fixedly connected to the inside of the positioning wheel 31 .

[0038] Specifically, teeth are provided on the outside of the meshing wheel 21, and the teeth provided on the outside of the meshing wheel 21 can mesh with the hollow position of the chain, so that the chain meshed on the outside of the meshing wheel 21 can be stably transmitted to the conveying wheel 22. The chain after being transmitted by the conveying wheel 22 is on the upper inclined plate 23 and then conveyed to the positioning wheel 31. The chain after passing through the positioning wheel 31 can be in a hanging state, and the hanging chain is conveyed into the strip discharge port 323 through the expanding cylinder 321 and the vertical cylinder 322. The metal chain is generally flat. After passing through the strip discharge port 323, it can be ensured that the metal chain below the strip discharge port 323 can be clamped by the two U-shaped clamps 53, and at this time, the hollow position of the metal chain is facing the two U-shaped clamps 53.

[0039] like Figure 4-Figure 6As shown, the driving structure 52 includes a driving rod forward and reverse motor 521 fixedly installed inside the device body 1, and one end of the driving rod forward and reverse motor 521 is connected to a driving gear 522 through an axis. Two driving gears 522 are provided, and the two driving gears 522 are meshed with each other, and the two driving gears 522 are at the same horizontal height. Two driven rings 54 are movably installed on the side of the U-shaped plate 51, and the two driven rings 54 are connected to the U-shaped clamping plate 53. The rotation of the driving gear 522 drives the driven ring 54 to perform circular motion.

[0040] A connecting rod 56 is fixedly installed on the side of the driven ring 54 , and one end of the connecting rod 56 is connected to the side of the U-shaped clamping plate 53 . Two guide structures 55 are also installed on the side of the U-shaped plate 51 . The guide structures 55 are used to plan the movement path of the driven ring 54 .

[0041] Two through grooves 511 are formed inside the U-shaped plate 51, and a driving rod forward and reverse motor 521 is fixedly installed at a non-center position on the side of the driving gear 522. The driving rod forward and reverse motor 521 is inside the through groove 511 and contacts the inner wall of the driven ring 54.

[0042] The guide structure 55 includes a fixed bar 551 fixedly installed above the driven ring 54, a lifting groove 5511 is opened inside the fixed bar 551, a fixed block 553 is installed on the side of the fixed bar 551, the fixed block 553 is fixedly connected to the side of the U-shaped plate 51, a displacement groove 5531 is opened inside the fixed block 553, a displacement rod 552 is slidably installed inside the displacement groove 5531, one end of the displacement rod 552 is lifted and installed inside the lifting groove 5511, the lifting groove 5511 is connected to the displacement rod 552 by a spring return structure, and the displacement groove 5531 is connected to the displacement rod 552 by a spring return structure.

[0043] Specifically, the diameter of the through groove 511 is larger than the inner ring diameter of the driven ring 54. When the two U-shaped clamps 53 are needed for clamping, the driving rod forward and reverse motor 521 is driven to rotate the driving gear 522 connected thereto, and the two driving gears 522 are meshed with each other, so the two driving gears 522 rotate at the same time. Because the center of the driven ring 54 and the center of the through groove 511 are on the same axis, and the lifting and lowering of the driven ring 54 can be reflected by the lifting and lowering of the displacement rod 552 in the lifting groove 5511, the horizontal movement of the driven ring 54 can be reflected by the fixed bar 551 driving the displacement rod 552 to move inside the displacement groove 5531. Therefore, when the rotating driving gear 522 drives the corresponding driving rod forward and reverse motor 521 to rotate, the driving rod forward and reverse motor 521 is at the inner wall edge of the through groove 511 and squeezes The inner wall of the driven ring 54 allows the driven ring 54 to move in a circular motion according to the XY-axis movement provided by the guide structure 55, and the connecting rod 56 and the U-shaped splint 53 are fixedly installed on one side of the driven ring 54. Therefore, the connecting rod 56 and the U-shaped splint 53 will follow the driven ring 54 to move in a circular motion. When the two U-shaped splints 53 are at the farthest distance, that is, when the metal chain is not clamped, when the two U-shaped splints 53 move in a clockwise direction toward each other to shorten the distance between the two U-shaped splints 53, the continued movement of the two U-shaped splints 53 after clamping the chain will provide an extruding and downward pulling force to the chain. The two U-shaped splints 53 are equipped with a structure that contacts the hollow position of the metal chain for cooperation. When the two U-shaped splints 53 pull down the metal chain, no friction damage will occur. Cutting when the metal chain is straight can effectively improve the cutting quality.

[0044] Example 2: Figure 7-Figure 8 As shown, in contrast to Example 1, another embodiment of the present invention is as follows: an inner cavity groove 531 is provided inside the U-shaped splint 53, an air delivery pipe 5311 is fixedly installed inside the inner cavity groove 531, one end of the air delivery pipe 5311 is connected to an external air pump, a component plate 532 is fixedly installed inside the inner cavity groove 531, a rubber gasket 533 is fixedly installed on the side of the U-shaped splint 53 facing the chain, and a plurality of cylindrical grooves 534 are provided through the inside of the rubber gasket 533.

[0045] A plurality of pneumatic grooves 5322 are provided through the interior of the component plate 532, and a plurality of cylindrical grooves 534 pass through the U-shaped clamping plate 53 and are connected to the plurality of pneumatic grooves 5322. A driving shaft 5321 is slidably installed inside the pneumatic groove 5322, and a fixing ring 5323 is fixedly installed on one end of the interior of the pneumatic groove 5322 facing away from the rubber gasket 533. A connecting spring 5324 is fixedly installed on the side of the fixing ring 5323, and one end of the connecting spring 5324 is fixedly connected to the end of the driving shaft 5321.

[0046] Specifically, when the two U-shaped clamps 53 move in a circle toward each other to clamp the metal chain, the two rubber gaskets 533 will first contact the chain. At this time, the two U-shaped clamps 53 are approximately at the two o'clock position. Through the operation of the external air pump, gas is input into the air delivery pipe 5311, so that the sealed space between the component plate 532 and the inner cavity groove 531 is filled with air, and the gas enters the inner end of the multiple pneumatic grooves 5322, thereby generating a thrust on the drive shaft 5321. This thrust causes the connecting spring 5324 to be stretched, and drives one end of the multiple drive shafts 5321 to extend through the pneumatic groove 5322 and the cylindrical groove 534. One end of some drive shafts 5321 contacts the metal part of the metal chain, which will cause the length of the extended drive shaft 5321 to be shorter. One end of the other drive shaft 5321 is in the hollow part of the metal chain, and the drive shaft 5321 of this part can extend The protruding parts are all extended out, and then when the two U-shaped clamps 53 continue to move toward each other in a circular motion to clamp, first the rubber gasket 533 is squeezed, and the part that the end of some drive shafts 5321 may contact is transformed from a metal part to a hollow part, but the drive shaft 5321 in the hollow part of the metal chain will not be transformed into a contacting metal part. At this time, multiple drive shafts 5321 in the hollow part of the metal chain will cause the two U-shaped clamps 53 to continue to move toward each other in a circular motion, driving the metal chain to move downward, so that the metal chain is straightened, which is beneficial for subsequent cutting work. The setting of multiple drive shafts 5321 in this device can make the two U-shaped clamps 53 no matter where they clamp the metal chain, and eventually the bottom of the fully extended drive shaft 5321 will contact the hollow lower end of the metal chain. At this time, the U-shaped clamp 53 continues to move in a circular motion, and its horizontal height decreases and straightens the metal chain, which is convenient for subsequent cutting.

[0047] Working principle: A large amount of chain is accumulated at the lower position of the arc cylinder 11. At this time, one end of the chain is transported by the conveying plate 2 and the conveying frame 3 through the arc cylinder 11. The chain after being transported by the conveying frame 3 is in a hanging shape. Under the action of gravity, the hanging chain is in the position between the two U-shaped splints 53. The two U-shaped splints 53 can be driven by the driving structure 52 to move in a circular motion toward each other until the two U-shaped splints 53 contact the chain and stop conveying the chain. At this time, the two U-shaped splints 53 continue to move in a circular motion toward each other, which will cause the horizontal height of the two U-shaped splints 53 to drop. Through the structure in contact with the hollow position of the metal chain, the drop of the two U-shaped splints 53 will Pull the chain downward to straighten the chain. At this time, the straightened chain is cut by the movable mobile cutting machine 4, which can effectively avoid the situation in which the chain is prone to abnormal movement and causes poor cutting effect in traditional technology. When the two U-shaped clamps 53 move in a circle toward each other to clamp the metal chain, the two rubber gaskets 533 will first contact the chain. At this time, the two U-shaped clamps 53 are approximately at the two o'clock position. The air is input into the air delivery pipe 5311 through the work of the external air pump, so that the sealed space between the component plate 532 and the inner cavity groove 531 is filled with air, and the gas will enter the inner end of the multiple pneumatic grooves 5322, that is, the drive shaft 532. 1 generates a thrust, which stretches the connecting spring 5324 and drives one end of multiple drive shafts 5321 to extend through the pneumatic groove 5322 and the cylindrical groove 534. One end of some drive shafts 5321 contacts the metal part of the metal chain, which causes the extended length of this part of the drive shaft 5321 to be shorter. One end of another part of the drive shaft 5321 is in the hollow part of the metal chain, and the part of this part of the drive shaft 5321 that can extend is fully extended. Then, when the two U-shaped clamps 53 continue to move in a circular motion toward each other, the rubber gasket 533 is squeezed first, and the part that may be in contact with the end of some drive shafts 5321 is rotated from the metal part to the metal part. It becomes a hollow part, but the driving shaft 5321 in the hollow part of the metal chain will not be transformed into a metal contact part. At this time, multiple driving shafts 5321 in the hollow part of the metal chain will cause the two U-shaped splints 53 to continue to move in circles toward each other, driving the metal chain to move downward, so that the metal chain is straightened, which is beneficial to subsequent cutting work. The setting of multiple driving shafts 5321 in this device can make the two U-shaped splints 53, no matter where they clamp the metal chain, eventually make the bottom of the fully extended driving shaft 5321 contact with the hollow lower end of the metal chain. At this time, the U-shaped splint 53 continues to move in circles, and its horizontal height drops to straighten the metal chain, which is convenient for subsequent cutting.

[0048] The basic principles, main features, and advantages of the present invention are shown and described above. Those skilled in the art should understand that the present invention is not limited to the foregoing embodiments. The foregoing embodiments and descriptions are merely illustrative of the principles of the present invention. Various changes and modifications may be made to the present invention without departing from the spirit and scope of the present invention. Such changes and modifications are intended to fall within the scope of the present invention. The scope of protection claimed in the present invention is defined by the appended claims and their equivalents.

Claims

1. A positioning and cutting device for metal chain processing, comprising a device body (1) and an arc-shaped cylinder (11) fixedly mounted above the side of the device body (1), a conveying plate (2) and a conveying frame (3) also fixedly mounted above the device body (1), characterized in that: A mobile cutting machine (4) is movably mounted on the other side of the device body (1), and a positioning device (5) is fixedly mounted on the same side of the device body (1), wherein the positioning device (5) is located below the mobile cutting machine (4); The positioning device (5) comprises a U-shaped plate (51) fixedly mounted on the side of the device body (1), a driving structure (52) being mounted on one side of the U-shaped plate (51), the driving structure (52) being located inside the device body (1), and two U-shaped clamping plates (53) being movably mounted on the other side of the U-shaped plate (51), the driving structure (52) being used to drive the two U-shaped clamping plates (53) to move toward each other in a circular manner for contact, and a structure for contacting the hollow position of the metal chain being mounted inside the two U-shaped clamping plates (53); An inner cavity groove (531) is provided inside the U-shaped splint (53), a delivery air pipe (5311) is fixedly installed inside the inner cavity groove (531), one end of the delivery air pipe (5311) is connected to an external air pump, a component plate (532) is fixedly installed inside the inner cavity groove (531), a rubber gasket (533) is fixedly installed on the side of the U-shaped splint (53) facing the chain, and a plurality of cylindrical grooves (534) are provided inside the rubber gasket (533); A plurality of pneumatic grooves (5322) are provided through the interior of the component plate (532), and a plurality of the columnar grooves (534) pass through the U-shaped clamping plate (53) and are in communication with the plurality of pneumatic grooves (5322). A driving shaft (5321) is slidably mounted inside the pneumatic groove (5322), and a fixing ring (5323) is fixedly mounted on one end of the interior of the pneumatic groove (5322) facing away from the rubber gasket (533). A connecting spring (5324) is fixedly mounted on the side of the fixing ring (5323), and one end of the connecting spring (5324) is fixedly connected to the end of the driving shaft (5321).

2. A positioning and cutting device for metal chain processing according to claim 1, characterized in that: A positioning wheel (31) and a feeding cylinder (32) are installed on the side of the conveying frame (3), and the feeding cylinder (32) is located below the positioning wheel (31), and the feeding cylinder (32) is located above the mobile cutting machine (4).

3. A positioning and cutting device for metal chain processing according to claim 2, characterized in that: The feed cylinder (32) comprises a vertical cylinder (322) fixedly connected to the conveying frame (3); a flaring cylinder (321) is fixedly mounted above the vertical cylinder (322); and a strip-shaped discharge port (323) is fixedly mounted below the vertical cylinder (322); the flaring cylinder (321), the vertical cylinder (322) and the strip-shaped discharge port (323) are all hollow.

4. The positioning and cutting device for metal chain processing according to claim 2, characterized in that: The conveying plate (2) comprises a meshing wheel (21) and a conveying wheel (22) movably mounted on one side of the conveying plate (2); an upper inclined plate (23) is fixedly mounted on the side of the conveying wheel (22); and one end of the upper inclined plate (23) is fixedly connected to the inside of the positioning wheel (31).

5. The positioning and cutting device for metal chain processing according to claim 1, characterized in that: The driving structure (52) includes a driving rod forward and reverse motor (521) fixedly mounted inside the device body (1), one end of the driving rod forward and reverse motor (521) is connected to a driving gear (522) via a shaft, two driving gears (522) are provided, the two driving gears (522) are meshed with each other, and the two driving gears (522) are at the same horizontal height, two driven rings (54) are movably mounted on the side of the U-shaped plate (51), the two driven rings (54) are connected to the U-shaped clamping plate (53), and the rotation of the driving gear (522) drives the driven ring (54) to perform circular motion.

6. The positioning and cutting device for metal chain processing according to claim 5, characterized in that: A connecting rod (56) is fixedly installed on the side of the driven ring (54), one end of which is connected to the side of the U-shaped clamping plate (53). Two guide structures (55) are also installed on the side of the U-shaped plate (51), and the guide structures (55) are used to plan the movement path of the driven ring (54).

7. The positioning and cutting device for metal chain processing according to claim 5, characterized in that: Two through-grooves (511) are formed inside the U-shaped plate (51), and a driving rod forward and reverse motor (521) is fixedly mounted on a non-center position on the side of the driving gear (522). The driving rod forward and reverse motor (521) is located inside the through-grooves (511) and contacts the inner wall of the driven ring (54).

8. The positioning and cutting device for metal chain processing according to claim 6, characterized in that: The guide structure (55) includes a fixed bar (551) fixedly mounted above the driven ring (54), a lifting groove (5511) extending through the interior of the fixed bar (551), a fixed block (553) installed on the side of the fixed bar (551), the fixed block (553) fixedly connected to the side of the U-shaped plate (51), a displacement groove (5531) extending through the interior of the fixed block (553), a displacement rod (552) slidably mounted inside the displacement groove (5531), one end of the displacement rod (552) being lifted and mounted inside the lifting groove (5511), the lifting groove (5511) being connected to the displacement rod (552) via a spring return structure, and the displacement groove (5531) being connected to the displacement rod (552) via a spring return structure.

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