Safety device for stranding machine housing
By installing a safety mechanism on the cover door of the twisting machine, using components such as a drive cylinder and a limit ring groove, the safety hazard caused by spring deformation of the cover door is solved, and the door can be opened and closed stably, improving safety and equipment reliability.
Patent Information
- Application Number
- CN202422584116.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-10-24
- Publication Date
- 2025-11-14
- Estimated Expiration
- 2034-10-24
AI Technical Summary
The existing twisting machine cover door cannot be fully opened after long-term use due to spring deformation, posing a safety hazard and potentially causing accidental closure that could injure workers.
Safety mechanisms are employed to prevent the cover door from closing unexpectedly on its own. These mechanisms include a drive cylinder and a reinforcing rod to limit the door's rotation, combined with a limit ring groove and a positioning rod to ensure the door's stability during opening and closing.
It effectively prevents the enclosure door from closing accidentally, reduces the risk of worker injury, and extends the service life of the equipment, while improving safety and reliability.
Smart Images
Figure CN223548322U_ABST
Abstract
Description
Technical Field
[0001] This application relates to the field of twisting machine equipment technology, and in particular to a safety device for a twisting machine cover. Background Technology
[0002] A stranding machine is a machine that twists several metal wires together into a strand according to a certain twist pitch and twist direction. When using a stranding machine, the steel strand may break in the middle, so a protective cover is installed on the outside of the stranding machine.
[0003] The existing twisting machine cover door usually relies on spring pressure to open. During long-term use, the spring will undergo plastic deformation, making it impossible for the cover door to open completely.
[0004] When employees open the cover door upwards for processing, the spring's restoring deformation force decreases, causing the cover door's opening and closing range to decrease under its own weight. This can lead to the cover door closing unexpectedly on its own, which can easily cause injury to employees during operation, indicating a deficiency in the system. Utility Model Content
[0005] To improve the safety of the cover door, this application provides a safety device for the cover of a twisting machine.
[0006] The safety device for a twisting machine cover provided in this application adopts the following technical solution:
[0007] A safety device for a twisting machine cover includes an outer shell, a shaft rotatably mounted on the outer shell, a cover door mounted on the shaft, and a safety mechanism between the outer shell and the cover door, the safety mechanism being used to prevent the cover door from rotating.
[0008] By adopting the above technical solution, when the worker opens the cover door, the safety mechanism restricts the rotation of the cover door, thereby preventing the cover door from closing accidentally on its own, reducing the possibility of worker accidents. At the same time, when the cover door is in the closed state, the safety mechanism helps to reduce the possibility of the cover door being opened accidentally, which helps to reduce the possibility of worker injury caused by the breakage of steel strands on the twisting machine.
[0009] Optionally, the safety mechanism includes a mounting bracket disposed on the housing, the mounting bracket being provided with a drive cylinder electrically connected to the control system, the piston rod of the drive cylinder being used to prevent the housing door from rotating open or close.
[0010] By adopting the above technical solution, when the twisting machine is running, the cylinder piston rod remains extended, i.e., locked, and the cover door cannot be opened. When the machine stops running, the cylinder is vented manually, and the piston rod retracts, allowing the cover door to open. When the cover door is opened to its highest position, the cylinder vent valve is closed manually, causing the piston rod to extend again. When the cover door is closed to a certain position, it will be blocked by the cylinder piston rod and cannot be closed. At this point, the cylinder vent valve needs to be opened manually so that the cover door can close.
[0011] Optionally, a reinforcing rod is slidably mounted on the mounting bracket. The axis of the reinforcing rod is parallel to the axis of the piston rod of the drive cylinder. A connecting plate is provided between the piston rod of the drive cylinder and the reinforcing rod. The reinforcing rod is used to abut against the cover door.
[0012] By adopting the above technical solution, the cover door will be blocked by the reinforcing rod after it is opened. The cover door and the reinforcing rod are in direct contact, which helps to reduce the possibility of the piston rod of the drive cylinder being crushed and damaged by the cover door, and helps to extend the service life of the drive cylinder.
[0013] Optionally, a retaining ring is provided at one end of the reinforcing rod opposite to the connecting plate of the mounting bracket, and a reset spring is provided between the retaining ring and the mounting bracket.
[0014] By adopting the above technical solution, when the cylinder is manually ventilated, the reset spring recovers its deformation and pushes the reinforcing rod to reset, at which point the cover door can be opened.
[0015] Optionally, the safety mechanism includes a limiting seat disposed on the housing, the limiting seat having a limiting ring groove, a positioning rod slidingly disposed on the limiting ring groove, the limiting ring groove of the limiting seat being used to limit the position of the positioning rod, a rocker arm disposed on the shaft, a support rod hinged between the rocker arm and the positioning rod, a locking rod rotatably disposed on the rocker arm, and an insert rod inserted into the support rod, the insert rod slidingly passing through the locking rod.
[0016] By adopting the above technical solution, when the cover door needs to be opened, the worker pulls out the plug rod, and the locking rod rotates under the action of gravity and remains in a vertical state. Then the worker opens the cover door, and the cover door drives the rocker arm to rotate through the shaft. The rocker arm drives the positioning rod to slide on the limiting ring groove through the support rod until the cover door is opened to a certain angle, and the positioning rod is positioned at the higher part of the limiting ring groove. When the cover door needs to be closed, the worker lifts the cover door again to make it rotate, and the positioning rod slides on the limiting ring groove to the lowest part of the limiting ring groove. At this time, the cover door is completely closed, and the worker fixes the locking rod to the support rod again through the plug rod.
[0017] Optionally, the limiting ring groove includes a first unit groove, a second unit groove, a third unit groove, and a fourth unit groove. The first unit groove, the second unit groove, the third unit groove, and the fourth unit groove are connected end to end in sequence. Along the top-down direction, the connection between the first unit groove and the second unit groove is lower than the connection between the third unit groove and the fourth unit groove. The connection between the first unit groove and the fourth unit groove and the connection between the fourth unit groove and the second unit groove are both higher than the connection between the third unit groove and the fourth unit groove.
[0018] By adopting the above technical solution, during the opening of the cover door, the positioning rod slides from the connection between the first unit slot and the second unit slot, along the second unit slot and the third unit slot, to the connection between the third unit slot and the fourth unit slot, thereby realizing the opening positioning of the cover door. When it is necessary to close the cover door, the positioning rod slides from the connection between the third unit slot and the fourth unit slot, along the fourth unit slot and the first unit slot, to the connection between the first unit slot and the second unit slot, at which point the cover door is completely closed under the action of gravity.
[0019] Optionally, the first unit slot, the second unit slot, the third unit slot, and the fourth unit slot are all inclinedly formed on the limiting seat, with the lower part of the first unit slot being higher than the higher part of the second unit slot, the higher part of the second unit slot being higher than the higher part of the third unit slot, the lower part of the third unit slot being higher than the higher part of the fourth unit slot, and the higher part of the fourth unit slot being higher than the lower part of the first unit slot.
[0020] By adopting the above technical solution, during the opening and closing process of the cover door, the positioning rod can only slide along the first unit slot, the second unit slot, the third unit slot, the fourth unit slot and back to the first unit slot in sequence, which helps to reduce the possibility that the positioning rod cannot open the cover door due to jamming.
[0021] Optionally, the rocker arm is slidably mounted on a shaft, and an end ring is provided on the shaft at the end opposite to the rocker arm and facing away from the limiting seat. A compression spring supports the end ring and the rocker arm.
[0022] By adopting the above technical solution, while the positioning rod slides along the limiting ring groove, the compression spring continuously presses the positioning rod against the limiting ring groove. During this process, the compression spring continuously deforms, which helps to reduce the possibility that the positioning rod will disengage from the limiting ring groove and fail to achieve the limiting effect on the cover door.
[0023] In summary, this application includes at least one of the following beneficial technical effects:
[0024] 1. When a worker opens the cover door, the safety mechanism restricts the rotation of the cover door to prevent it from closing accidentally, thus reducing the possibility of worker accidents. At the same time, when the cover door is closed, the safety mechanism helps to reduce the possibility of the cover door being opened accidentally, which helps to reduce the possibility of worker injury caused by the breakage of steel strands on the twisting machine.
[0025] 2. When the twisting machine is running, the cylinder piston rod remains extended, i.e., locked, and the cover door cannot be opened. When the machine stops running, the cylinder is vented manually, and the piston rod retracts, allowing the cover door to open. When the cover door is opened to its highest position, the cylinder vent valve is manually closed, causing the piston rod to extend again. When the cover door is closed to a certain position, it will be blocked by the piston rod and cannot be closed. At this point, the cylinder vent valve needs to be manually opened so that the cover door can close.
[0026] 3. When the cover door needs to be opened, the worker removes the insert rod. The locking rod rotates under gravity and remains vertical. Then, the worker opens the cover door. The cover door drives the rocker arm to rotate via the shaft. The rocker arm drives the positioning rod to slide on the limiting ring groove via the support rod until the cover door is opened to a certain angle. The positioning rod is then positioned at the higher part of the limiting ring groove. When the cover door needs to be closed, the worker lifts the cover door again to make it rotate. The positioning rod slides on the limiting ring groove to the lowest part of the limiting ring groove. At this time, the cover door is completely closed. The worker then uses the insert rod to fix the locking rod to the support rod. Attached Figure Description
[0027] Figure 1 This is a schematic diagram of the structure of Embodiment 1 of this application.
[0028] Figure 2 This is a structural schematic diagram showing the positional relationship between the drive cylinder, the reinforcing rod, and the cover door in Embodiment 1 of this application.
[0029] Figure 3 This is a structural schematic diagram showing the positional relationship between the shaft, rocker arm, and limiting seat in Embodiment 2 of this application.
[0030] Figure 4 This is a structural schematic diagram of the positional relationship between the limiting ring groove, the positioning rod, and the limiting seat in Embodiment 2 of this application.
[0031] Explanation of reference numerals in the attached drawings: 1. Outer shell; 2. Shaft; 3. Cover door; 4. Safety mechanism; 41. Mounting bracket; 42. Drive cylinder; 43. Limiting seat; 44. Limiting ring groove; 441. First unit groove; 442. Second unit groove; 443. Third unit groove; 444. Fourth unit groove; 45. Positioning rod; 46. Rocker arm; 47. Support rod; 48. Locking rod; 49. Insert rod; 5. Reinforcing rod; 6. Connecting plate; 7. Retaining ring; 8. Return spring; 9. End ring; 10. Compression spring. Detailed Implementation
[0032] The following is in conjunction with the appendix Figure 1-4 This application will be described in further detail.
[0033] This application discloses a safety device for the cover of a twisting machine.
[0034] Example 1
[0035] Reference Figure 1 A safety device for a twisting machine cover includes an outer shell 1, a horizontal shaft 2 rotatably arranged on the outer shell 1, a rotating motor (not shown in the figure) electrically connected to the control system is bolted inside the outer shell 1, the shaft 2 and the rotating motor are driven by a gearbox (not shown in the figure), a cover door 3 is bolted to the shaft 2, and a safety mechanism 4 is arranged between the outer shell 1 and the cover door 3.
[0036] Reference Figure 1 The safety mechanism 4 is used to prevent the cover door 3 from rotating. The safety mechanism 4 includes a mounting bracket 41 arranged on the outer shell 1. A drive cylinder 42 that can be electrically connected to the control system is bolted to the mounting bracket 41. The piston rod of the drive cylinder 42 is used to prevent the cover door 3 from rotating around the shaft 2 to open or close.
[0037] Reference Figure 1 and Figure 2 A reinforcing rod 5 is slidably arranged on the mounting bracket 41. The axis of the reinforcing rod 5 is parallel to the axis of the piston rod of the drive cylinder 42. A connecting plate 6 is bolted between the piston rod of the drive cylinder 42 and the reinforcing rod 5. The reinforcing rod 5 is used to abut against the cover door 3. A retaining ring 7 is bolted to the end of the reinforcing rod 5 that is opposite to the connecting plate 6 of the mounting bracket 41. A return spring 8 is supported between the retaining ring 7 and the mounting bracket 41.
[0038] The implementation principle of Example 1 is as follows: When the twisting machine is running, the cylinder piston rod remains in the extended state, i.e., the locked state, and the cover door 3 cannot be opened. When the machine stops running, the cylinder is vented manually, the cylinder piston rod retracts, and the cylinder piston rod drives the reinforcing rod 5 to retract, and the reset spring 8 is stretched by force. At this time, the cover door 3 can be opened in the forward direction.
[0039] When the cover door 3 is opened to its highest position, the worker manually operates to close the cylinder vent valve, causing the cylinder piston rod to extend again. The cylinder piston rod drives the reinforcing rod 5 to extend, and the reset spring 8 returns to its deformation. At this time, after the cover door 3 rotates in the opposite direction by a certain angle, the cover door 3 will be blocked by the reinforcing rod 5, and the cover door 3 cannot continue to close.
[0040] When it is necessary to close the cover door 3, the worker manually operates to ventilate the cylinder. The piston rod of the cylinder drives the reinforcing rod 5 to retract, and only then can the cover door 3 continue to fall and close. When the cover door 3 is closed, the worker manually operates to close the cylinder vent valve, keeping the cylinder piston rod in the extended state, thereby locking the cover door 3.
[0041] Example 2
[0042] refer to Figure 3 and Figure 4 The difference between this embodiment and embodiment 1 is that the safety mechanism 4 includes a limiting seat 43 bolted to the outer shell 1, a limiting ring groove 44 is provided on the limiting seat 43, a positioning rod 45 slides on the limiting ring groove 44, the limiting ring groove 44 of the limiting seat 43 is used to limit the position of the positioning rod 45, and a rocker arm 46 is slidably arranged on the shaft 2 along its axis.
[0043] Reference Figure 3 and Figure 4 A support rod 47 is hinged between the rocker arm 46 and the positioning rod 45. A locking rod 48 is rotatably connected to the rocker arm 46. A plug rod 49 is inserted into the support rod 47. The plug rod 49 slides through the locking rod 48. A plug slot (not shown in the figure) is provided on the support rod 47 for the plug rod 49 to be inserted. An end ring 9 is bolted to the end of the shaft 2 that is opposite to the rocker arm 46 and faces away from the limiting seat 43. A compression spring 10 supports the end ring 9 and the rocker arm 46.
[0044] Reference Figure 3 and Figure 4 The limiting ring groove 44 includes a first unit groove 441, a second unit groove 442, a third unit groove 443, and a fourth unit groove 444, which are connected end to end in sequence.
[0045] Reference Figure 3 and Figure 4 Along the top-down direction, the connection between the first unit slot 441 and the second unit slot 442 is lower than the connection between the third unit slot 443 and the fourth unit slot 444. The connection between the first unit slot 441 and the fourth unit slot 444 and the connection between the fourth unit slot 444 and the second unit slot 442 are both higher than the connection between the third unit slot 443 and the fourth unit slot 444.
[0046] Reference Figure 3 and Figure 4The first unit slot 441, the second unit slot 442, the third unit slot 443 and the fourth unit slot 444 are all inclinedly opened on the limiting seat 43. The lower part of the first unit slot 441 is higher than the higher part of the second unit slot 442, the higher part of the second unit slot 442 is higher than the higher part of the third unit slot 443, the lower part of the third unit slot 443 is higher than the higher part of the fourth unit slot 444, and the higher part of the fourth unit slot 444 is higher than the lower part of the first unit slot 441.
[0047] The implementation principle of Example 2 is as follows: When it is necessary to open the cover door 3, the worker pulls out the plug rod 49, and the locking rod 48 rotates under the action of gravity and remains in a vertical state. At this time, the locking rod 48 releases the rotation restriction between the rocker arm 46 and the support rod 47. Then the worker rotates forward to open the cover door 3. The cover door 3 drives the rocker arm 46 to rotate through the shaft 2. The rocker arm 46 drives the positioning rod 45 to slide on the limiting ring groove 44 through the support rod 47.
[0048] During the opening of the cover door 3, the positioning rod 45 slides from the connection between the first unit groove 441 and the second unit groove 442, along the second unit groove 442 and the third unit groove 443 to the connection between the third unit groove 443 and the fourth unit groove 444. At this time, the positioning rod 45 is positioned at the higher part of the limiting ring groove 44. Without the action of external force, the positioning rod 45 cannot cross the fourth unit groove 444.
[0049] When it is necessary to close the cover door 3, the worker lifts the cover door 3 forward again to rotate it. The positioning rod 45 is at the connection between the third unit slot 443 and the fourth unit slot 444. It slides along the fourth unit slot 444 and the first unit slot 441 to the connection between the first unit slot 441 and the second unit slot 442. At this time, the cover door 3 is completely closed.
[0050] During the opening and closing of the cover door 3, the compression spring 10 continuously deforms, and the positioning rod 45 can only slide along the first unit groove 441, the second unit groove 442, the third unit groove 443, the fourth unit groove 444 and back to the first unit groove 441 in sequence. Finally, the worker can fix the locking rod 48 to the support rod 47 again through the insertion rod 49. At this time, the cover door 3 cannot be opened.
[0051] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.
Claims
1. A safety device for a twisting machine cover, characterized in that: Includes an outer shell (1), on which a shaft (2) is rotatably mounted, and on which a cover door (3) is mounted, and a safety mechanism (4) is provided between the outer shell (1) and the cover door (3), the safety mechanism (4) being used to prevent the cover door (3) from rotating.
2. The safety device for a twisting machine cover according to claim 1, characterized in that: The safety mechanism (4) includes a mounting bracket (41) disposed on the housing (1), and a drive cylinder (42) electrically connected to the control system is disposed on the mounting bracket (41). The piston rod of the drive cylinder (42) is used to prevent the housing door (3) from rotating open or close.
3. A safety device for a twisting machine cover according to claim 2, characterized in that: A reinforcing rod (5) is slidably disposed on the mounting bracket (41). The axis of the reinforcing rod (5) is parallel to the axis of the piston rod of the drive cylinder (42). A connecting plate (6) is disposed between the piston rod of the drive cylinder (42) and the reinforcing rod (5). The reinforcing rod (5) is used to abut against the cover door (3).
4. A safety device for a twisting machine cover according to claim 3, characterized in that: The reinforcing rod (5) is provided with a retaining ring (7) at one end opposite to the mounting bracket (41) and facing away from the connecting plate (6), and a reset spring (8) is provided between the retaining ring (7) and the mounting bracket (41).
5. A safety device for a twisting machine cover according to claim 1, characterized in that: The safety mechanism (4) includes a limiting seat (43) disposed on the outer shell (1), a limiting ring groove (44) is provided on the limiting seat (43), a positioning rod (45) slides on the limiting ring groove (44), the limiting ring groove (44) of the limiting seat (43) is used to limit the position of the positioning rod (45), a rocker arm (46) is provided on the shaft (2), a support rod (47) is hinged between the rocker arm (46) and the positioning rod (45), a locking rod (48) is rotatably disposed on the rocker arm (46), and a plug rod (49) is inserted into the support rod (47), the plug rod (49) slides through the locking rod (48).
6. A safety device for a twisting machine cover according to claim 5, characterized in that: The limiting ring groove (44) includes a first unit groove (441), a second unit groove (442), a third unit groove (443), and a fourth unit groove (444). The first unit groove (441), the second unit groove (442), the third unit groove (443), and the fourth unit groove (444) are connected end to end in sequence. Along the top-down direction, the connection between the first unit groove (441) and the second unit groove (442) is lower than the connection between the third unit groove (443) and the fourth unit groove (444). The connection between the first unit groove (441) and the fourth unit groove (444) and the connection between the fourth unit groove (444) and the second unit groove (442) are both higher than the connection between the third unit groove (443) and the fourth unit groove (444).
7. A safety device for a twisting machine cover according to claim 6, characterized in that: The first unit slot (441), the second unit slot (442), the third unit slot (443) and the fourth unit slot (444) are all inclinedly opened on the limiting seat (43). The lower part of the first unit slot (441) is higher than the higher part of the second unit slot (442), the higher part of the second unit slot (442) is higher than the higher part of the third unit slot (443), the lower part of the third unit slot (443) is higher than the higher part of the fourth unit slot (444), and the higher part of the fourth unit slot (444) is higher than the lower part of the first unit slot (441).
8. A safety device for a twisting machine cover according to claim 7, characterized in that: The rocker arm (46) is slidably mounted on the shaft (2). An end ring (9) is provided on the shaft (2) at one end opposite to the rocker arm (46) and facing away from the limiting seat (43). A compression spring (10) is provided between the end ring (9) and the rocker arm (46).