Material receiving structure of silicon steel sheet cross cut line

Abstract

The utility model discloses a material receiving structure of a silicon steel sheet cut-to-length line, which belongs to the technical field of silicon steel sheet production and comprises a conveying line, a buffer mechanism and a material receiving disc. A pressing mechanism is arranged above the stroke tail end of the conveying line. The buffering mechanism is used for buffering the silicon steel sheets in the downward-throwing state. And the receiving disc is used for receiving the buffered silicon steel sheets. The pressing mechanism is located at the tail end of the conveying line and exerts downward pressure on the tail end of the silicon steel sheet thrown at a high speed, the tail end is prevented from warping after the silicon steel sheet flies out, vibration of the silicon steel sheet is restrained, and the flight attitude is optimized. The buffering mechanism replaces traditional rigid collision through contact type energy absorption, and the kinetic energy of the silicon steel sheets is reduced. Under the adjustment of the material pressing mechanism, the silicon steel sheet and the buffering mechanism have a stable contact posture, so that the buffering effect of the buffering mechanism can be fully exerted. The material receiving disc receives decelerated silicon steel sheets, and free falling and bouncing are avoided.

Description

TECHNICAL FIELD

[0001] The utility model belongs to silicon steel sheet production technical field, and specifically is a kind of silicon steel sheet cross-cut line's material receiving structure. BACKGROUND

[0002] In the field of large power equipment and efficient motor production, the large-scale processing of large-size silicon steel sheets is one of the core process links. As the core equipment for silicon steel sheet cutting and stacking, the stability and quality of the material receiving link directly affect the final lamination precision, material utilization rate and product performance. After the cross-cut line cutting process, the material receiving process usually adopts the operation mode of "high-speed throwing material-mechanical collision positioning", which is specifically manifested as follows: the silicon steel sheet after cutting is thrown by the conveying mechanism along the set trajectory at high speed, and the collision between the silicon steel sheet and the rigid baffle is realized by the inertial motion of the silicon steel sheet itself, or the collision between the silicon steel sheet and the rigid baffle is realized by the sliding contact between the silicon steel sheet and the lower silicon steel sheet, and finally the silicon steel sheet is stabilized in the material receiving groove to complete directional stacking by gravity.

[0003] During the high-speed throwing process of large-size silicon steel sheets, high-frequency vibration is easily generated due to the flexible characteristics of the silicon steel sheets, and the instantaneous impact force is extremely large when the silicon steel sheets collide with the rigid baffle and the lower silicon steel sheet. Severe hard contact can easily cause partial peeling or scratching of the surface insulation coating of the silicon steel sheet, seriously affecting the electromagnetic performance consistency of the core after lamination. After the collision between the silicon steel sheet and the baffle, the kinetic energy is not fully dissipated, and the silicon steel sheet still exists vertical bouncing when falling into the material receiving groove. This phenomenon leads to an increase in lamination misregistration rate, and the silicon steel sheet displacement is large in the leveling process, which is easy to cause secondary wear.

[0004] The patent with publication number CN112875309A discloses an automatic discharging device and automatic stacking method of steel plate cutting equipment. After the steel plate is thrown out, it is buffered by a buffering mechanism, and then guided to the stacking mechanism by a guide mechanism. The buffering mechanism uses a torsional spring sleeved on a rotating shaft as damping, and the rotating shaft can reset after the previous steel plate lands. Although this equipment realizes gentle material receiving of the steel plate, it is found in actual application that, due to the flexural characteristics of large-size thin silicon steel sheets, the tail of the silicon steel sheet will produce warping and then overall vibration due to different inertias before and after the silicon steel sheet is thrown out, resulting in extremely unstable posture when the silicon steel sheet finally contacts the buffer plate. The buffering effect of the buffer plate cannot be fully exerted, and there is also uncontrollable local friction between the silicon steel sheet and the buffer plate. UTILITY MODEL CONTENTS

[0005] The utility model aims to provide a kind of silicon steel sheet cross-cut line's material receiving structure to solve the problems raised in the prior art.

[0006] A kind of silicon steel sheet cross-cut line's material receiving structure is provided, comprising:

[0007] A conveying line is provided with a pressing mechanism on the upper part of the stroke end of the conveying line.

[0008] A buffering mechanism for buffering the silicon steel sheet in the downward throwing state;

[0009] A receiving tray for receiving the buffered silicon steel sheet.

[0010] Further, a speed control roller is arranged at the end of the conveying line. The speed control roller is arranged at the end of the conveying line, and the initial throwing speed of the silicon steel sheet is adjusted by the rotating speed of the roller, so that the accuracy of the contact posture of the silicon steel sheet and the buffering mechanism is improved. When the speed of the speed control roller is greater than the conveying speed of the conveying line, the front end of the silicon steel sheet is preferentially accelerated, so that the vibration caused by the difference between the end speed and the front end speed of the silicon steel sheet under the action of inertia is avoided.

[0011] Further, the pressing mechanism comprises a plurality of pressing rollers, and the plurality of pressing rollers are respectively rotationally connected to the bases at two ends. The pressing rollers are arranged in a distributed manner, can be actively rotated, and the linear speed of the rotation of the pressing rollers is adapted to the throwing speed of the silicon steel sheet, so that hard friction between the silicon steel sheet and the pressing mechanism during the pressing of the silicon steel sheet is avoided, and surface scratch defects are avoided.

[0012] Further, the buffering mechanism comprises a plurality of receiving plates, a rotating roller and a damping device, the plurality of receiving plates are arranged along the axial direction of the rotating roller, and the damping device is arranged at least at one end of the rotating roller. After the silicon steel sheet contacts the receiving plate, the receiving plate drives the rotating roller to rotate synchronously, and the rotating roller rotates slowly under the action of the damping device, so that the kinetic energy of the silicon steel sheet is gradually dissipated. The damping device is used for controlling the resistance of the rotating roller, so that the free-fall rotation of the rotating roller is avoided.

[0013] Further, the damping device is a torsional spring, and the torsional spring is sleeved on the periphery of the rotating roller. The torsional spring damping controls the rotating resistance of the rotating roller by adjusting the pre-tightening force. When the silicon steel sheet impacts the receiving plate, the torsional spring is elastically deformed to store energy, and the energy is released after the silicon steel sheet is separated from the receiving plate to reset the receiving plate.

[0014] Further, the receiving plate is provided with a plurality of receiving units in the circumferential direction, and the damping device is a rotary damper. Each receiving unit is used for buffering a single silicon steel sheet, and after the silicon steel sheet impacts the receiving unit, the receiving unit drives the rotating roller to rotate, the previous receiving unit rotates slowly under the resistance of the rotary damper until the silicon steel sheet is separated, and the subsequent receiving unit rotates to a receiving position to buffer the next silicon steel sheet, so that the resetting process is not needed, and the stacking efficiency of the silicon steel sheet can be improved.

[0015] Further, a buffering pad is arranged on the receiving plate. The buffering pad is made of an elastic material and absorbs the residual impact energy of the silicon steel sheet through elastic deformation.

[0016] Compared with the prior art, the beneficial effects of the utility model lie in:

[0017] The pressing mechanism is located at the end of the conveying line, and exerts downward pressure on the tail end of the high-speed thrown silicon steel sheet to prevent the silicon steel sheet from warping after flying out, inhibit the vibration of the silicon steel sheet, and optimize the flight attitude. The buffer mechanism replaces the traditional rigid collision with contact energy absorption, reducing the kinetic energy of the silicon steel sheet. Under the adjustment of the pressing mechanism, the silicon steel sheet has a stable contact posture with the buffer mechanism, so that the buffering effect of the buffer mechanism can be fully exerted. The receiving tray receives the silicon steel sheet that has been decelerated, avoiding free-fall bouncing. In addition, after the buffering of the buffer mechanism, the noise generated by the hard collision of the silicon steel sheet can be eliminated to a certain extent. BRIEF DESCRIPTION OF DRAWINGS

[0018] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the drawings needed to be used in the embodiments or prior art description will be briefly introduced. Obviously, the drawings in the following description are only some embodiments of the drawings, and other drawings can be obtained by those skilled in the art without creative labor based on the structures shown in the drawings.

[0019] Figure 1 It is a schematic diagram of the overall structure of a receiving structure of a silicon steel sheet cross-cutting line A.

[0020] Figure 2 It is a schematic diagram of the overall structure of a receiving structure of a silicon steel sheet cross-cutting line B.

[0021] In the figure: 1, conveying line; 2, buffer mechanism; 21, receiving plate; 211, receiving unit; 22, rotating roller; 23, damping device; 24, buffer pad; 3, receiving tray; 4, pressing mechanism; 41, pressing roller; 5, speed control roller. DETAILED DESCRIPTION

[0022] In order to make the purpose, technical solutions and advantages of the present application more clear, the present application is described and explained below in combination with the drawings and examples. It should be understood that the specific examples described herein are only used to explain the present application and not to limit the present application. Based on the examples provided in the present application, all other examples obtained by those skilled in the art without creative labor fall within the scope of the present application.

[0023] It is apparent that the drawings in the following description merely show some examples or embodiments of the present application, and the present application can be applied to other similar situations without creative efforts based on these drawings for those skilled in the art. In addition, it can be understood that although the efforts made in this development process can be complex and lengthy, some design, manufacture or production changes based on the technical content disclosed in the present application are only routine technical means for those skilled in the art related to the content disclosed in the present application, and should not be understood as insufficient disclosure of the content disclosed in the present application.

[0024] However, unnecessary detailed descriptions can be omitted. For example, there are cases where detailed descriptions of well-known matters, repeated descriptions of practically identical structures are omitted. This is to avoid the following description from becoming unnecessarily lengthy and to facilitate understanding by those skilled in the art. In addition, the drawings and the following description are provided to enable those skilled in the art to fully understand the present application, and are not intended to limit the subject matter recited in the claims.

[0025] Please refer to Figure 1 As shown in the drawings, the material receiving structure of the silicon steel sheet cross-cutting line in the embodiment of the present application comprises a conveying line 1, a buffer mechanism 2 and a material receiving tray 3. The upper part of the end of stroke of the conveying line 1 is provided with a material pressing mechanism 4. The buffer mechanism 2 is used to buffer the silicon steel sheet in the state of being thrown downward. The material receiving tray 3 is used to receive the silicon steel sheet after being buffered.

[0026] The conveying line 1 is responsible for conveying the cut silicon steel sheet at a certain initial speed to the end and throwing it out. The material pressing mechanism 4 is located above the end of the conveying line 1, and after the silicon steel sheet is thrown out, it applies pressure to the tail end of the silicon steel sheet, suppresses the vibration and warping of the silicon steel sheet in flight, adjusts the throwing posture of the silicon steel sheet, and makes the silicon steel sheet contact the buffer mechanism 2 in an approximately horizontal posture. The buffer mechanism 2 slows down the silicon steel sheet through contact damping, and the silicon steel sheet after energy consumption falls from the buffer mechanism 2 and falls into the material receiving tray 3, and is stably stacked under the action of gravity.

[0027] Through the cooperation of the material pressing mechanism 4 provided at the end of the conveying line 1 and the buffer mechanism 2, a dynamic pressure control and gradual energy consumption material receiving mechanism is formed, which eliminates the hard collision of the silicon steel sheet with the rigid baffle and reduces the damage to the surface coating; the bounce amplitude of the end of the silicon steel sheet is significantly reduced, the lamination misregistration rate is optimized; the noise pollution is greatly reduced, meeting the industrial noise standard.

[0028] The material pressing mechanism 4 plays a limiting role and can be a limiting block with a certain limiting size. However, hard friction will occur between the dynamic silicon steel sheet and the static limiting block during the limiting process, which is easy to cause surface wear of the silicon steel sheet. A coating with a low friction coefficient can be provided on the lower surface of the limiting block to weaken the wear impact of the limiting block on the silicon steel sheet.

[0029] In one embodiment, the pressing mechanism 4 consists of several pressing rollers 41, which are rotatably connected to bases at both ends. The pressing rollers 41 actively rotate to adapt to the ejection speed of the silicon steel sheet, making rolling contact with the sheet. When the roller surface of the pressing roller 41 contacts the silicon steel sheet, rolling friction replaces sliding friction, uniformly applying downward pressure. Warping of the silicon steel sheet's tail is suppressed, maintaining a horizontal posture as it enters the buffer mechanism 2, while the coating on the silicon steel sheet's surface is effectively protected.

[0030] A speed control roller 5 is positioned at the end of the conveyor line 1, at a certain distance from the conveyor line 1. The speed control roller 5 is the first point of contact after the silicon steel sheet is ejected. The speed of the speed control roller 5 is independently adjustable, creating a differentiated match with the speed of the conveyor line 1. When the silicon steel sheet reaches the end of the conveyor line 1, the speed control roller 5 rotates at a higher speed than the conveyor line 1, resulting in a momentary speed at the front end of the silicon steel sheet being greater than that at the rear end. This maintains the overall tensile tendency of the silicon steel sheet, suppressing vibrations caused by inertial differences.

[0031] Furthermore, the speed control roller 5, by limiting the ejection speed of the silicon steel sheets, ensures precise and controllable positioning of the batch of silicon steel sheets on the buffer mechanism 2, meeting the requirements of industrialized and standardized production processes. When dealing with silicon steel sheets of different specifications and sizes, the speed control roller 5 can also adapt to the landing point requirements of different types of silicon steel sheets on the buffer mechanism 2.

[0032] The buffer mechanism 2 includes several receiving plates 21, rotating rollers 22, and damping devices 23. The receiving plates 21 can be integrally or separately arranged on the rotating rollers 22. This invention preferably uses a separate arrangement, which disperses the impact force through multi-point contact with the silicon steel sheet, while simultaneously reducing the overall weight of the receiving plates 21 and increasing the proportion of kinetic energy dissipated by the damping devices 23 from the silicon steel sheet. The rotating rollers 22 are supported at both ends by bearings, and at least one end is connected to the damping devices 23.

[0033] The specific working process of the buffer mechanism 2 is as follows: when the silicon steel sheet impacts a portion of the receiving plate 21, it pushes the rotating roller 22 to rotate. The damping device 23 generates resistance, consuming the kinetic energy of the silicon steel sheet. Under the action of the silicon steel sheet's gravity and impact force, the rotating roller 22 slowly rotates to a certain angle, and the silicon steel sheet slides away from the receiving plate 21 and enters the receiving tray 3. In its initial state, the receiving plate 21 has a receiving portion extending horizontally in the direction of the conveyor line 1. This portion has a certain contact area. After the silicon steel sheet flies out in a horizontal posture, its bottom first contacts this receiving portion, reducing local impact through multiple contact surfaces. Then, the receiving plate 21 begins to rotate and tilt, and the silicon steel sheet slides off the contact portion under its own gravity, achieving a buffering effect. After buffering, the silicon steel sheet enters the receiving tray 3, significantly reducing bouncing.

[0034] In one embodiment, the damping device 23 is a torsion spring, which is sleeved on the outer periphery of the rotating roller 22, and the two ends of the torsion spring are limited on the rotating roller 22 and the bearing support respectively. When the silicon steel sheet impacts the receiving plate 21 to drive the rotating roller 22 to rotate, the torsion spring is elastically deformed. The damping force provided by the torsion spring enables the receiving plate 21 to rotate slowly and thus achieve buffering. The torsion spring stores energy in the process of rotation, and the kinetic energy of the silicon steel sheet is converted into the elastic potential energy of the torsion spring. After the silicon steel sheet slides off, the torsion spring releases the elastic potential energy to reset the receiving plate 21. This damping mode has a simple structure and an automatic reset function.

[0035] In one embodiment, as shown in Figure 2 The receiving plate 21 is circumferentially provided with a plurality of receiving units 211, and the damping device 23 is a rotary damper. The receiving unit 211 is a split module, each receiving unit 211 has a separate receiving part, and the receiving parts are distributed along the circumference of the receiving plate 21 to form a gear train. The rotary damper is installed at the end of the rotating roller 22, and can be an oil hydraulic damper, a magnetic damper, a friction damper, an elastic damper, etc. By converting the rotational kinetic energy into heat energy or other forms of energy, the buffering effect is achieved. The above-mentioned damper types are prior art, and the related structures will not be described in detail here.

[0036] When the silicon steel sheet impacts a certain receiving unit 211, it drives the rotating roller 22 to rotate, and the rotary damper provides controllable resistance, so that the previous receiving unit 211 rotates slowly, and during this period, the silicon steel sheet is separated from the receiving unit 211. Since the rotary damper does not have an energy storage function, the receiving unit 211 does not reset, and the next receiving unit 211 automatically rotates to the standby position to continuously receive the next silicon steel sheet. Since this damping mode omits the reset process, the silicon steel sheet can be continuously thrown out without waiting for the receiving plate 21 to reset, thereby improving the stacking efficiency.

[0037] In order to improve the accuracy of each receiving unit 211 entering the standby position, a protractor can be provided at one end of the rotating roller 22 to fix the rotation angle of each receiving unit 211, so as to ensure that the silicon steel sheet is in the best contact posture with the receiving plate 21.

[0038] Further, as shown in Figure 1 A buffer pad 24 is provided on the receiving plate 21. The buffer pad 24 is provided on the surface of the receiving plate 21 for contact with the silicon steel sheet. When the silicon steel sheet contacts the buffer pad 24, the elastic layer is compressed and deformed to absorb the impact, and then the silicon steel sheet slides away from the buffer pad 24 at a low speed and falls into the receiving tray 3. Since the silicon steel sheet and the buffer pad 24 interact in the form of pressure, compared with the shear force form when the front end of the silicon steel sheet directly impacts the buffer layer of the baffle surface, the buffer pad 24 has a longer service life.

[0039] Note that the present application is not limited to the above-described embodiments. The above-described embodiments are merely examples, and embodiments having substantially the same configuration, function, and effect as the technical idea of the present application are included in the technical scope of the present application. Furthermore, other modes constructed by applying various modifications to the embodiments, or by combining part of the configurations of the embodiments, which can be conceived by those skilled in the art without departing from the spirit of the present application, are also included in the scope of the present application.

Claims

1. A feeding structure for a silicon steel sheet cross-cutting line, characterized in that, include: A conveyor line (1) is provided with a pressing mechanism (4) at the upper part of the end of the stroke of the conveyor line (1); Buffer mechanism (2), which is used to buffer the silicon steel sheet in the downward throwing state; The receiving tray (3) is used to receive the silicon steel sheets after buffering.

2. The material receiving structure of a silicon steel sheet cross-cutting line according to claim 1, characterized in that, The speed control roller (5) is provided at the end of the stroke of the conveyor line (1).

3. The material receiving structure of a silicon steel sheet cross-cutting line according to claim 1, characterized in that, The pressing mechanism (4) includes a plurality of pressing rollers (41), which are rotatably connected to the bases at both ends.

4. The material receiving structure of a silicon steel sheet cross-cutting line according to claim 1, characterized in that, The buffer mechanism (2) includes several receiving plates (21), a rotating roller (22) and a damping device (23). The several receiving plates (21) are arranged along the axial direction of the rotating roller (22), and the damping device (23) is provided at least at one end of the rotating roller (22).

5. The material receiving structure of a silicon steel sheet cross-cutting line according to claim 4, characterized in that, The damping device (23) is a torsion spring, which is sleeved around the roller (22).

6. The material receiving structure of a silicon steel sheet cross-cutting line according to claim 4, characterized in that, The receiving plate (21) is provided with a plurality of receiving units (211) along the circumferential direction, and the damping device (23) is a rotary damper.

7. The material receiving structure of a silicon steel sheet cross-cutting line according to claim 4, characterized in that, A buffer pad (24) is provided on the receiving plate (21).

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