Automatic weighing and thread trimming device
The automatic weighing and wire cutting device uses limit bars and weighing units to precisely control the quality of the iron wire. The cylinder and pneumatic shears achieve automatic cutting, which solves the problem of insufficient quality caused by manual control of the iron wire length, and improves production efficiency and the quality consistency of the rolled iron wire.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- GUANGDONG SIAO INTELLIGENT TECH CO LTD
- Filing Date
- 2025-05-14
- Publication Date
- 2026-05-05
AI Technical Summary
In existing technologies, manually controlling the length of the iron wire results in insufficient quality after coiling, requiring secondary processing and affecting production efficiency.
Design an automatic weighing and wire cutting device. The device controls the falling of the iron wire through a limit bar and a weighing unit, uses a weighing sensor to accurately control the quality of the iron wire, and uses a cylinder and pneumatic shears to achieve automatic cutting, realizing unmanned operation.
This enables precise control of iron wire quality, reduces secondary processing, improves production efficiency, and ensures the consistency of quality in rolled iron wire.
Smart Images
Figure CN224195808U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of iron wire winding technology, and in particular to an automatic weighing and wire cutting device. Background Technology
[0002] Iron wire is flexible and has good plasticity. The structure of coiled iron wire can improve its stability and strength. In addition, coiling can reduce the space occupied and facilitate storage and transportation. Coiling iron wire into a compact roll can avoid damage caused by excessive bending and collision, thereby reducing the probability of safety risks. At the same time, it is very convenient to remove the iron wire from the roll, saving time and costs. Furthermore, the coiled iron wire is more compact, which can effectively utilize transportation space, reduce losses during transportation, and help protect the iron wire from the influence of the external environment. Spraying anti-rust oil on the coiled iron wire can reduce corrosion and rust.
[0003] In existing technology, the length of the iron wire needs to be manually controlled during the wire cutting process, which has a large error. Since each person's wire cutting method is different, the quality of the iron wire after coiling may be insufficient. The iron wire with insufficient quality needs to be processed again, which affects the production process and delays production efficiency. Summary of the Invention
[0004] In order to overcome the problem that the existing technology of manually controlling the length of iron wire may result in insufficient quality of the iron wire after coiling, the iron wire with insufficient quality needs to be processed again, which affects the production process and delays production efficiency.
[0005] The technical solution of this utility model is as follows: an automatic weighing and wire cutting device, including a frame, an upper plate at the top of the frame, a lower plate at the bottom of the frame, a limiting cylinder between the upper and lower plates, through holes corresponding to the limiting cylinder on the upper and lower plates, a limiting rail at the top of the upper plate corresponding to the position of the limiting cylinder, a limiting guide post coaxially arranged with the limiting cylinder in the middle of the limiting rail, a blocking part at the top of the upper plate, the blocking part including a linkage component, a connecting rod, and a rotating block rotatably connected to the top of the upper plate, a rotating shaft perpendicular to the upper plate on the linkage component, the connecting rod, and the rotating block, the rotating shaft being able to pass through the upper plate and protrude downwards, a receiving plate at the bottom of the rotating shaft, the receiving plate being able to be rotated to point to the center of the limiting cylinder, a weighing unit at the bottom of the limiting cylinder, the number of weighing units being three, the three weighing units being arranged in a ring around the limiting cylinder.
[0006] Preferably, the top of the limiting cylinder can be lowered into the iron wire, and the circular array of weighing units can be connected to the iron wire falling from the top of the limiting cylinder. The weighing unit includes a second connecting plate, which has a fan-shaped structure. The top of the second connecting plate is provided with a guide block, and the top of the guide block has a chamfer on the side facing the axis of the limiting cylinder.
[0007] Preferably, the bottom of the connecting plate 2 is provided with a connecting block 1, and the bottom of the connecting block 1 is provided with a weighing sensor. The connecting block 1 is connected to one end of the weighing sensor along its length, and the other end of the weighing sensor is connected to the connecting plate 1. The connecting plate 1 can be connected to the output end of the cylinder 2. The mounting plate 1 is fixed to one side of the cylinder 2 and is fixedly connected to the lower plate. When the output rod of the cylinder 2 retracts, the connecting plate 2 can be pulled away from the bottom of the limiting cylinder.
[0008] Preferably, the linkage includes a first rotation position, a second rotation position, and a third rotation position. The first, second, and third rotation positions are located around the pivot shaft of the linkage. The axes of the first, second, and third rotation positions are parallel to the axis of the limiting cylinder. The first rotation position is rotatably connected to the output rod of the first cylinder. The second rotation position is rotatably connected to the second connecting rod, the other end of which is rotatably connected to the second connecting block. The third rotation position is rotatably connected to the first connecting rod, the other end of which is rotatably connected to the first rotating block. When the output rod of the first cylinder extends, the receiving plate can pass through the limiting cylinder and point to the center of the limiting cylinder.
[0009] Preferably, the limiting cylinder is provided with a clearance hole to avoid the receiving plate.
[0010] Preferably, the bottom of the frame is provided with a second mounting plate, the bottom of which is connected to a first strip plate. The second strip plate is installed on one side of the first strip plate, and a mounting block is installed on one side of the second strip plate. A cylinder mounting plate is installed on one side of the mounting block, and a third cylinder is installed on the side of the cylinder mounting plate away from the mounting block. The output rod of the third cylinder is connected to a hook, which points to the limiting cylinder. The outer wall of the limiting cylinder is provided with an opening corresponding to the hook. The mounting block is provided with a through mounting position, in which pneumatic scissors can be installed. The hook can hook the falling iron wire inside the limiting cylinder and drag it to the pneumatic scissors.
[0011] Preferably, an insulating fixing plate is installed on the side wall of the hook, and an induction wire can pass through the insulating fixing plate. The induction wire can detect the iron wire that falls into the hook inside the limiting cylinder.
[0012] The beneficial effects of this utility model are as follows: Compared with manually controlling the length of the iron wire, weighing is carried out after the wire is cut. The falling iron wire is controlled by the limit bar to prevent it from deviating outward. The weighing unit can weigh the falling iron wire. When the weight is qualified, the three receiving plates point to the center of the limit cylinder at the same time to block the iron wire falling in a ring. Attached Figure Description
[0013] Figure 1 This is a schematic diagram of the overall structure of this utility model;
[0014] Figure 2 This is a schematic diagram of the receiving plate structure of this utility model;
[0015] Figure 3This is a schematic diagram of the connecting rod structure of this utility model;
[0016] Figure 4 This is a schematic diagram of the guide block structure of this utility model;
[0017] Figure 5 This is a schematic diagram of the hook structure of this utility model.
[0018] Explanation of reference numerals in the attached drawings: 1. Frame; 11. Upper plate; 12. Lower plate; 13. Limiting cylinder; 131. Clearance hole; 21. Cylinder 1; 211. Linkage component; 212. Connecting rod 2; 213. Connecting rod 1; 214. Rotating block 1; 215. Connecting block 2; 216. Receiving plate; 22. Limiting rail; 23. Limiting guide post; 3. Weighing unit; 31. Mounting plate 1; 32. Cylinder 2; 33. Weighing sensor; 34. Connecting plate 1; 35. Connecting block 1; 36. Connecting plate 2; 361. Guide block; 41. Mounting plate 2; 412. Strip plate 1; 413. Strip plate 2; 42. Cylinder mounting plate; 43. Induction line; 44. Cylinder 3; 45. Hook; 46. Insulating fixing plate; 47. Pneumatic shears; 48. Mounting block. Detailed Implementation
[0019] The present invention will be further described below with reference to the accompanying drawings and embodiments.
[0020] Please see Figure 1 - Figure 5This utility model provides an embodiment of an automatic weighing and wire cutting device, comprising a frame 1, an upper plate 11 at the top of the frame 1, a lower plate 12 at the bottom of the frame 1, a limiting cylinder 13 between the upper plate 11 and the lower plate 12, through holes corresponding to the limiting cylinder 13 on the upper plate 11 and the lower plate 12, a limiting rail 22 at the top of the upper plate 11 corresponding to the position of the limiting cylinder 13, a limiting guide post 23 coaxially arranged with the limiting cylinder 13 in the middle of the limiting rail 22, and a blocking part at the top of the upper plate 11, the blocking part comprising a linkage 211, a connecting rod 213, and a rotating block 214 rotatably connected to the top of the upper plate 11. 214 is equipped with a rotating shaft perpendicular to the upper plate 11. The rotating shaft can pass through the upper plate 11 and protrude downwards. The bottom of the rotating shaft is equipped with a receiving plate 216. The receiving plate 216 can be rotated to point to the center of the limiting cylinder 13. The bottom of the limiting cylinder 13 is equipped with a weighing unit 3. There are three weighing units 3, which are arranged in a ring around the limiting cylinder 13. The limiting rail 22 controls the falling iron wire to prevent it from deviating outwards. The weighing unit 3 can weigh the falling iron wire. When the weight is qualified, a hook 45 will hook the iron wire. At the same time, the nearby pneumatic shears 47 will cut the hooked iron wire. When the hook 45 hooks the iron wire, the induction wire 43 threaded on the insulating fixing plate 46 will activate. When the iron wire is detected, the three receiving plates 216 simultaneously point to the center of the limiting cylinder 13 to block the falling iron wire. The wire cut off at the bottom will be bundled by the subsequent device structure after weighing. After the iron wire at the bottom is bundled, the cylinder 2 32 retracts, and the bundled iron wire falls from the weighing unit 3. After the bundled iron wire falls, the cylinder 2 32 extends, and the receiving plates 216 will no longer block the iron wire. The weighing unit 3 continues to start a new round of weighing.
[0021] Please see Figure 1 - Figure 4In this embodiment, the top of the limiting cylinder 13 can fall into the iron wire, and the circular weighing unit 3 can receive the iron wire falling from the top of the limiting cylinder 13. The weighing unit 3 includes a second connecting plate 36, which has a fan-shaped structure. The top of the second connecting plate 36 is provided with a guide block 361. The top of the guide block 361 has a chamfer on the side facing the axis of the limiting cylinder 13. The chamfer of the guide block 361 guides the circularly falling iron wire, so that the falling iron wire falls into the circular weighing unit. 3. A connecting block 35 is located at the bottom of the connecting plate 36. A load cell 33 is located at the bottom of the connecting block 35. The connecting block 35 is connected to one end of the load cell 33 along its length. The other end of the load cell 33 is connected to a connecting plate 34. The connecting plate 34 can be connected to the output end of the cylinder 32. A mounting plate 31 is fixed to one side of the cylinder 32. The mounting plate 31 is fixedly connected to the lower plate 12. When the output rod of the cylinder 32 retracts, the connecting plate 36 can... The wire can be pulled out from the bottom of the limiting cylinder 13. The weight of the falling wire is summed by three weighing sensors 33 to accurately control the mass of the falling wire and thus determine its length. One cylinder 21 simultaneously controls the rotation of three receiving plates 216, reducing the time difference between the rotation of the three receiving plates 216. The linkage 211 includes three rotating positions: rotating position one, rotating position two, and rotating position three. Rotating positions one, two, and three are located around the rotating shaft of linkage 211. The axis of rotating position one and the axis of rotating position two are... The axis of the first rotation position is parallel to the axis of the limiting cylinder 13. The first rotation position is rotatably connected to the output rod of the first cylinder 21. The second rotation position is rotatably connected to the second connecting rod 212, and the other end of the second connecting rod 212 is rotatably connected to the second connecting block 215. The third rotation position is rotatably connected to the first connecting rod 213, and the other end of the first connecting rod 213 is rotatably connected to the first rotating block 214. When the output rod of the first cylinder 21 extends, the receiving plate 216 can pass through the limiting cylinder 13 and point to the center of the limiting cylinder 13.
[0022] Please see Figure 2 - Figure 5In this embodiment, the limiting cylinder 13 is provided with a clearance hole 131 to avoid the receiving plate 216. The clearance hole 131 allows the receiving plate 216 to pass through, preventing the limiting cylinder 13 from being damaged by the impact of the receiving plate 216. The bottom of the frame 1 is provided with a second mounting plate 41. The bottom of the second mounting plate 41 is connected to a first strip 412. A second strip 413 is installed on one side of the first strip 412. A mounting block 48 is installed on one side of the second strip 413. A cylinder mounting plate 42 is installed on one side of the mounting block 48. A third cylinder 44 is installed on the side of the cylinder mounting plate 42 away from the mounting block 48. The output rod of the third cylinder 44 is connected to a hook 45. The hook 45 points towards the limiting cylinder 13. The outer wall of the limiting cylinder 13 is provided with an opening corresponding to the hook 45. The mounting block 48 is provided with a through mounting position, which allows the cylinder to pass through. Install pneumatic shears 47. Hook 45 can hook the falling iron wire inside the limiting cylinder 13 and drag it to the pneumatic shears 47. The iron wire is hooked by hook 45, making it easy for the pneumatic shears 47 to cut and complete the production of a roll of iron wire. The opening on the outer wall of the limiting cylinder 13 can prevent the limiting cylinder 13 from being damaged by the hook 45. At the same time, the opening can also allow the hook 45 to reach in and hook the wire. An insulating fixing plate 46 is installed on the side wall of the hook 45. The induction wire 43 can pass through the insulating fixing plate 46. The induction wire 43 can sense the iron wire that has fallen into the hook 45 inside the limiting cylinder 13. The programmable controller of the device receives a signal that the iron wire has fallen onto the hook 45 through the induction wire 43, so that the cylinder 44 can drive the hook 45 to quickly pull the iron wire for the pneumatic shears 47 to cut, realizing unmanned cutting operation.
[0023] During operation, the iron wire falls in a circular motion from the previous station, specifically in a spring-like manner. After falling, the wire passes through the limit bar 22 and the limit cylinder 13, landing on the connecting plate 36 of the circular weighing unit 3. The guide block 361 limits the falling wire to prevent it from scattering. The weighing sensor 33 weighs the wire that falls onto the connecting plate 36. When the weight reaches the preset standard, the weighing sensor 33 sends a signal to the programmable controller (PCC). The PCC immediately controls the cylinder 21 to extend. Under the linkage rotation of the blocking part, the three receiving plates 216 simultaneously rotate into the limit cylinder 13, pointing towards the axis of the limit cylinder 13 to block the falling wire. At the same time, the PCC simultaneously drives the cylinder 44 to extend the hook 45. The sensing wire 43 on the insulating fixing plate 46 on the side wall of the hook 45 senses the wire and feeds back a signal to the programmable controller. The programmable controller (PLC) controls cylinder 21 to retract and begin a new round of wire reeling. Simultaneously, the PLC controls cylinder 44 to retract. Once cylinder 44 retracts, the signal is transmitted to the PLC, which then drives pneumatic shears 47 to cut the wire, completing the take-up of one roll. A binding device then binds the wire. After binding, cylinder 32 of weighing unit 3 retracts, and the finished roll of wire falls along the axis of limit cylinder 13 into the next station. Cylinder 32 then drives connecting plate 36 to extend, and cylinder 21 retracts again. The wire temporarily stored on receiving plate 216 falls back onto connecting plate 36 for a new round of weighing. The electrical control equipment and pneumatic components here are existing technologies, and their working principles will not be elaborated here. Since the cross-sectional area of the wire is the same, the mass per unit length is also the same, so the length of the wire can be determined based on its mass.
[0024] Through the above steps, the limit bar 22 controls the falling iron wire to prevent it from deviating outwards, and the weighing unit 3 can weigh the falling iron wire. When the weight is qualified, the three receiving plates 216 simultaneously point to the center of the limit cylinder 13 to block the falling iron wire in a ring. This solves the problem that in the prior art, manually controlling the length of the iron wire may result in insufficient quality of the rolled iron wire. Iron wire with insufficient quality needs to be processed again, which affects the production process and delays production efficiency.
Claims
1. An automatic weighing and wire cutting device, characterized in that: The system includes a frame (1), with an upper plate (11) at the top and a lower plate (12) at the bottom. A limiting cylinder (13) is provided between the upper plate (11) and the lower plate (12). The upper plate (11) and the lower plate (12) have through holes corresponding to the limiting cylinder (13). A limiting rail (22) is provided at the top of the upper plate (11) at the position corresponding to the limiting cylinder (13). A limiting guide post (23) coaxially arranged with the limiting cylinder (13) is provided in the middle of the limiting rail (22). A blocking part is provided at the top of the upper plate (11). The blocking part includes a rotating part at the top of the upper plate (11). The connecting link (211), connecting rod 1 (213), and rotating block 1 (214) are respectively provided with a rotating shaft perpendicular to the upper plate (11). The rotating shaft can pass through the upper plate (11) and protrude downward. The bottom of the rotating shaft is provided with a receiving plate (216). The receiving plate (216) can be rotated to point to the center of the limiting cylinder (13). The bottom of the limiting cylinder (13) is provided with a weighing unit (3). The number of weighing units (3) is three. The three weighing units (3) are arranged in a ring around the limiting cylinder (13).
2. The automatic weighing and wire cutting device according to claim 1, characterized in that: The top of the limiting cylinder (13) can be lowered into the iron wire, and the ring-shaped weighing unit (3) can be connected to the iron wire falling from the top of the limiting cylinder (13). The weighing unit (3) includes a connecting plate two (36), which is a fan-shaped structure. The top of the connecting plate two (36) is provided with a guide block (361), and the top of the guide block (361) is chamfered on the side facing the axis of the limiting cylinder (13).
3. The automatic weighing and wire cutting device according to claim 2, characterized in that: The bottom of the connecting plate 2 (36) is provided with a connecting block 1 (35), and the bottom of the connecting block 1 (35) is provided with a weighing sensor (33). The connecting block 1 (35) is connected to one end of the weighing sensor (33) in the length direction. The other end of the weighing sensor (33) is connected to the connecting plate 1 (34). The connecting plate 1 (34) can be connected to the output end of the cylinder 2 (32). The side of the cylinder 2 (32) is fixed with the mounting plate 1 (31). The mounting plate 1 (31) is fixedly connected to the lower plate (12). When the output rod of the cylinder 2 (32) retracts, the connecting plate 2 (36) can be pulled away from the bottom of the limiting cylinder (13).
4. The automatic weighing and wire cutting device according to claim 3, characterized in that: The linkage (211) includes a first rotation position, a second rotation position, and a third rotation position. The first rotation position, the second rotation position, and the third rotation position are located around the rotating shaft of the linkage (211). The axis of the first rotation position, the axis of the second rotation position, and the axis of the third rotation position are parallel to the axis of the limiting cylinder (13). The first rotation position is rotatably connected to the output rod of the first cylinder (21). The second rotation position is rotatably connected to the second connecting rod (212). The other end of the second connecting rod (212) is rotatably connected to the second connecting block (215). The third rotation position is rotatably connected to the first connecting rod (213). The other end of the first connecting rod (213) is rotatably connected to the first rotating block (214). When the output rod of the first cylinder (21) extends, the receiving plate (216) can pass through the limiting cylinder (13) and point to the center of the limiting cylinder (13).
5. The automatic weighing and wire cutting device according to claim 4, characterized in that: The limiting cylinder (13) is provided with a clearance hole (131) to avoid the receiving plate (216).
6. The automatic weighing and wire cutting device according to claim 1, characterized in that: The bottom of the frame (1) is provided with a second mounting plate (41), the bottom of the second mounting plate (41) is connected to a first strip plate (412), a second strip plate (413) is installed on one side of the first strip plate (412), a mounting block (48) is installed on one side of the second strip plate (413), a cylinder mounting plate (42) is installed on one side of the mounting block (48), a third cylinder (44) is installed on the side of the cylinder mounting plate (42) away from the mounting block (48), the output rod of the third cylinder (44) is connected to a hook (45), the hook (45) points to the limiting cylinder (13), the outer wall of the limiting cylinder (13) is provided with an opening corresponding to the hook (45), the mounting block (48) is provided with a through mounting position, the pneumatic scissors (47) can be installed in the mounting position, and the hook (45) can hook the iron wire falling in the limiting cylinder (13) and drag it to the pneumatic scissors (47).
7. The automatic weighing and wire cutting device according to claim 6, characterized in that: An insulating fixing plate (46) is installed on the side wall of the hook (45). The induction wire (43) can pass through the insulating fixing plate (46), and the induction wire (43) can sense the iron wire falling into the hook (45) inside the limiting cylinder (13).