A steel coil unwinding damping device

Abstract

A steel coil unwinding damping device belongs to the field of transformer manufacturing technology and comprises a support portion, an outer shell, a damping portion, and a control portion. The outer shell is mounted on the support portion, and both the damping portion and the control portion are mounted within the outer shell. The control portion is connected to the damping portion. The support portion comprises end rings and side plates, with the end rings mounting the entire steel coil on the side plates. The outer shell comprises a housing, lugs, baffles, transition holes, sliding pins, and a control pin. The housing has lugs on the outer edge, and the housing is mounted on the side plates through the housing. The damping portion comprises a push rod, a pull rod, a core rod, a boss, a spring, and a stop pin. The damping portion fits within the housing. The push rod is connected to the pull rod above, the pull rod is connected to the core rod above, and the core rod is connected to the boss above. The control portion comprises a sleeve, an eccentric hole, a spiral groove, and a round cover. The sleeve fits within the upper half of the housing, with the core rod and boss fitting within the sleeve. The sleeve has an eccentric hole, and a stop pin is mounted within the eccentric hole. The stop pin is located to the side of the core rod, and the sleeve has a spiral groove on its surface.

Description

Technical Field

[0001] The invention belongs to the technical field of transformer manufacturing, and in particular relates to a steel coil unwinding damping device. Background Art

[0002] Silicon steel sheets are a crucial material for the iron cores of transformers. They are typically cut from coils of steel. Sometimes, however, the coils are cut into a batch of steel sheets, which are then cut to produce the silicon steel sheets needed for the transformer. Regardless of the processing route, the rolled steel sheets are conveyed from the coils to the cutting equipment. A set of uncoilers gradually pulls the steel sheets from the coils, gradually rotating the coils and conveying them forward. After conveying a certain amount, the coils pause for a certain period of time, and then the coils are pulled again to release a certain amount of steel sheets. Due to the high inertia of the steel coils, they may continue to rotate after being released and then paused, resulting in poor controllability. Therefore, appropriate devices are required to control this process. Summary of the Invention

[0003] The present invention provides a steel coil uncoiling damping device to solve the problems in the above-mentioned background technology.

[0004] The technical problem solved by the present invention is achieved by adopting the following technical solutions:

[0005] A steel coil unwinding damping device comprises a support part, a shell, a damping part and a control part. The shell is mounted on the support part, the damping part and the control part are both mounted in the shell, and the control part is connected to the damping part.

[0006] The support portion includes an end ring and a side plate. The support portion is a steel coil unwinding mechanism, and the end ring mounts the entire steel coil on the side plate. The outer shell includes a shell, an ear, a baffle, a transition hole, a sliding pin, and a control pin. The outer edge of the shell has an ear, and the shell is mounted on the side plate through the shell. The shell has a baffle inside. The lower half of the shell is mounted with a sliding pin, and the upper half of the shell is mounted with a control pin. The damping portion includes a push rod, a pull rod, a core rod, a boss, a spring, and a limit pin. The damping portion is sleeved inside the shell. The push rod is connected to the pull rod above, the pull rod is connected to the core rod above, and the core rod is connected to the boss above. The spring is sleeved on the pull rod and is located between the push rod and the baffle. The core rod has a limit pin on the side. The limit pin passes through the transition hole and is mounted in the eccentric hole. The limit pin moves with the control portion. The control part includes a sleeve, an eccentric hole, a spiral groove and a round cover. The sleeve is sleeved on the upper half of the shell, and the core rod and the boss are sleeved inside the sleeve. The sleeve has an eccentric hole, and a limit pin is installed in the eccentric hole. The limit pin is located on the side of the core rod and between the boss and the pull rod. The surface of the sleeve has a spiral groove.

[0007] Furthermore, a transition hole is provided on the side of the shell away from the axis, and the position of the transition hole corresponds to the eccentric hole of the control part, and the transition hole provides a passage for the installation of the limit pin.

[0008] Furthermore, the push rod is provided with a sliding groove, and the sliding pin is sleeved in the sliding groove.

[0009] Furthermore, the thread lead angle of the spiral groove is designed as a self-locking thread.

[0010] The beneficial effects of the present invention are:

[0011] The present invention is a damping device for a steel coil unwinding mechanism in a silicon steel sheet production process, which applies a damping effect to the end ring of the steel coil. When the rotation of the steel coil needs to be paused during the unwinding process, the steel coil can be quickly stopped. Although the device requires a greater force to pull the steel coil to rotate and release the steel sheet during the operation of unwinding the steel sheet when the steel coil is unwinding, its damping effect on the steel coil can effectively control the length of the steel sheet released during the unwinding process, has good benefits for production, can effectively prevent the steel coil from rotating accidentally, and will not cause unnecessary rotation. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 is a schematic diagram of the present invention;

[0013] Figure 2 It is a partial schematic diagram of the present invention;

[0014] Figure 3 It is a partial exploded view of the present invention;

[0015] In the figure: 10. Support part, 11. End ring, 12. Side plate, 20. Outer shell, 21. Shell, 22. Ear piece, 23. Blocking piece, 24. Transition hole, 25. Sliding pin, 26. Control pin, 30. Damping part, 31. Push rod, 32. Pull rod, 33. Core rod, 34. Boss, 35. Spring, 36. Limit pin, 40. Control part, 41. Sleeve, 42. Eccentric hole, 43. Spiral groove, 44. Round cover. DETAILED DESCRIPTION

[0016] To facilitate understanding of the present invention, the present invention will be described more fully below with reference to the accompanying drawings. Preferred embodiments of the present invention are shown in the drawings. However, the present invention may be embodied in many different forms and is not limited to the embodiments described herein. Rather, these embodiments are provided to provide a more thorough and comprehensive disclosure of the present invention.

[0017] See also Figure 1-Figure 3 The steel coil unwinding damping device shown includes a support part 10, a shell 20, a damping part 30 and a control part 40. The shell 20 is installed on the support part 10, the damping part 30 and the control part 40 are both installed in the shell 20, and the control part 40 is connected to the damping part 30.

[0018] The support portion 10 includes an end ring 11 and a side plate 12. The support portion 10 is a steel coil unwinding mechanism. For ease of description, this embodiment only shows the portion related to the damping device. The end ring 11 is the side end ring of the entire steel coil, and the end ring 11 mounts the entire steel coil on the side plate 12. Of course, it should be added that the steel coil unwinding mechanism also has other complex actuators, which are not directly related to the damping device of this application. This content is omitted in this embodiment. As long as the damping device of this technical solution is correctly installed on a conventional steel coil unwinding mechanism, the technical effect of this technical solution can be achieved.

[0019] In order to facilitate the display of the internal structure of the housing 20 and the installation structure of the control unit 40 and the damping unit 30 in the housing 20, Figure 2 and attached Figure 3 Only half of the housing 20 is shown.

[0020] The shell 20 includes a shell 21, an ear piece 22, a baffle 23, a transition hole 24, a sliding pin 25 and a control pin 26. The outer edge side of the shell 21 has an ear piece 22, and the shell 20 is installed on the side plate 12 through the shell 21. The shell 21 has a baffle 23 inside. The side of the shell 21 deviates from the axis and has a transition hole 24. The transition hole 24 corresponds to the position of the eccentric hole 42 of the control part 40. The transition hole 24 provides a passage for the installation of the limit pin 36. The sliding pin 25 is installed on the lower half of the shell 21, and the control pin 26 is installed on the upper half of the shell 21.

[0021] The damping part 30 includes a push rod 31, a pull rod 32, a core rod 33, a boss 34, a spring 35 and a limit pin 36. The damping part 30 is sleeved inside the shell 21. The push rod 31 is connected to the pull rod 32 above, the pull rod 32 is connected to the core rod 33 above, and the core rod 33 is connected to the boss 34 above. The spring 35 is sleeved on the pull rod 32 and is located between the push rod 31 and the baffle 23. Under the action of the spring 35, the push rod 31 always has a tendency to press downward. The push rod 31 is provided with a slide groove, and the sliding pin 25 is sleeved in the slide groove, which guides and limits the damping part 30, so that the damping part 30 can only move up and down but not rotate. There is a limit pin 36 on the side of the core rod 33. The limit pin 36 passes through the transition hole 24 and is installed in the eccentric hole 42. The limit pin 36 moves with the control part 40.

[0022] The control part 40 includes a sleeve 41, an eccentric hole 42, a spiral groove 43 and a round cover 44. The sleeve 41 is sleeved on the upper half of the shell 21, and the core rod 33 and the boss 34 are sleeved inside the sleeve 41. The sleeve 41 has an eccentric hole 42, and a limit pin 36 is installed in the eccentric hole 42. The limit pin 36 is located on the side of the core rod 33 and between the boss 34 and the pull rod 32. With this design, the control pin 26 can rotate together with the control part 40. When the control part 40 moves up and down in the shell 21, the damping part 30 is driven up and down by the control pin 26. The surface of the sleeve 41 has a spiral groove 43, and the control pin 26 is sleeved and moves in the spiral groove 43. The thread lead angle of the spiral groove 43 is designed as a self-locking thread. Under the action of the control pin 26, the rotating control part 40 slides up and down in the shell 21, and drives the damping part 30 to move up and down through the limit pin 36.

[0023] The operating principle of the present invention is as follows: The entire damping device is installed on the coil unwinding mechanism as shown in the accompanying drawings, with the push rod 31 of the damping unit 30 facing the coil end ring. When the damping device is no longer required, the control unit 40 is rotated, causing the spiral groove 43 to move relative to the control pin 26, forcing the control unit 40 to move upward. At this point, the control pin 26 moves with the control unit 40 and, through the boss 34, pulls the damping unit 30 upward, overcoming the damping force of the spring 35 until the push rod 31 no longer contacts the coil end ring, disabling the damping effect. When the damping device needs to work, the control part 40 is rotated in the opposite direction, and the control part 40 moves downward. The damping part 30 slides downward under the action of the spring 35 until it contacts the end ring. It should also be added that when the control part 40 is rotated until the control pin 26 is completely disengaged from the boss 34, the damping effect of the push rod 31 on the end ring depends entirely on the elastic force of the spring 35. When the control pin 26 is not completely disengaged from the boss 34, the spring 35 that produces the damping effect becomes smaller because it is still subjected to the tension of the control pin 26. Therefore, the maximum value of the damping effect of the device is limited by the spring 35, and the damping effect can be adjusted between the maximum value and zero by adjusting the control part 40. Usually, when replacing the steel coil, the damping device is adjusted to the non-damping state. When the steel coil is replaced and construction begins, the damping device is adjusted to the appropriate damping state and maintained in this state until the end of the operation. This can effectively prevent the steel coil from rotating accidentally during the entire operation.

[0024] The above embodiments primarily illustrate the coil unwinding damping device of the present invention. While only a limited number of embodiments and technical features have been described, those skilled in the art will appreciate that the present invention may be implemented in numerous other forms without departing from its spirit and scope. Therefore, the illustrated embodiments are to be considered illustrative rather than restrictive, and the present invention may encompass various modifications and alternatives without departing from the spirit and scope of the present invention as defined by the appended claims.

Claims

1. A steel coil unwinding damping device, comprising a support portion (10), a housing (20), a damping portion (30) and a control portion (40), characterized in that: The housing (20) is mounted on the support portion (10), the damping portion (30) and the control portion (40) are both mounted in the housing (20), the control portion (40) is connected to the damping portion (30), the support portion (10) includes an end ring (11) and a side plate (12), the end ring (11) mounts the entire steel coil on the side plate (12), the housing (20) includes a shell (21), an ear piece (22), a baffle (23), a sliding pin (25) and a control pin (26), The outer edge side of the shell (21) is provided with an ear piece (22), the outer shell (20) is installed on the side plate (12) through the shell (21), the shell (21) is provided with a baffle (23), the lower half of the shell (21) is provided with a sliding pin (25), the upper half of the shell (21) is provided with a control pin (26), the damping part (30) includes a push rod (31), a pull rod (32), a core rod (33), a boss (34), a spring (35) and a limit pin (36), the damping part (30) is fitted inside the shell (21), the push rod (31) is connected to the pull rod (32), the pull rod (32) is connected to the core rod (33), the core rod (33) is connected to the boss (34), the spring (35) is fitted on the pull rod (31), and the spring (35) is fitted on the pull rod (32). The core rod (32) is provided with a limit pin (36) on the side of the core rod (33), and the limit pin (36) is installed in the eccentric hole (42). The control part (40) includes a sleeve (41), an eccentric hole (42), a spiral groove (43) and a round cover (44). The sleeve (41) is fitted on the upper half of the shell (21). The core rod (33) and the boss (34) are fitted inside the sleeve (41). The sleeve (41) has an eccentric hole (42). The limit pin (36) is installed in the eccentric hole (42). The limit pin (36) is located on the side of the core rod (33) and between the boss (34) and the pull rod (32). The surface of the sleeve (41) has a spiral groove (43).

2. The steel coil unwinding damping device according to claim 1, characterized in that: The side surface of the housing (21) is provided with a transition hole (24) deviating from the axis, and the transition hole (24) corresponds to the position of the eccentric hole (42) of the control part (40).

3. The steel coil unwinding damping device according to claim 1, characterized in that: The push rod (31) is provided with a sliding groove, and the sliding pin (25) is sleeved in the sliding groove.

4. The steel coil unwinding damping device according to claim 1, characterized in that: The thread lead angle of the spiral groove (43) is designed as a self-locking thread.

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