Movable supporting device for coiling machine

Abstract

The utility model provides a movable supporting device for a coiling machine, which comprises an inlet side movable supporting device and an outlet side movable supporting device, the inlet side movable supporting device and the outlet side movable supporting device respectively comprise a positioning block, a connecting rod mechanism and a movable supporting device body, and the input end of the connecting rod mechanism is connected with a hydraulic cylinder. The output end of the connecting rod mechanism is connected with the movable supporting device body, when the connecting rod is opened to a limit position, namely the movable supporting device body is in a working state, the whole connecting rod is collinear with the axis of the tail end of a winding drum to be held, and when the connecting rod is retracted to the limit position, namely the movable supporting device body is opened in place, the whole connecting rod is collinear with the axis of the tail end of the winding drum to be held. And the movable supporting device body is limited by the positioning block. According to the utility model, the mechanical dead point position of the connecting rod mechanism is fully utilized, the acting force directions of the connecting rods are collinear, the torque is zero, and the impact load is directly transmitted to the frame of the coiling machine. The phenomena of hydraulic cylinder damage, oil leakage and the like caused by the fact that impact component force directly acts on the hydraulic cylinder can be avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of continuous rolling mill production line in metallurgical industry, in particular to a movable supporting device for a coiler. Background Art

[0002] The purpose of the coiler is to collect extra-long rolled products and coil them into coils for storage and transportation. The coiler is one of the important equipment in the steel rolling workshop and is widely used in strip production. The working state of the coiler directly affects the production capacity of the rolling mill, especially the continuous rolling mill, and thus affects the production capacity of the entire production line.

[0003] The movable support device is an important part of the reel-type coiler and plays a pivotal role in the coiling process. During the coiling operation, the movable support device holds the end of the reel to prevent the reel from bending and deformation. Due to the large impact when the strip bites into the coiler, the coiler is prone to abnormal phenomena such as violent shaking, loud noise, low reliability, and poor stability. The above reasons are mainly due to the unreasonable force on the connecting rod of the existing movable support mechanism.

[0004] Traditional movable support devices (such as Figure 1 ) has the following problems and shortcomings:

[0005] (1) The impact load is the largest when the strip is threaded. The connecting rod mechanism of the traditional active support device is not properly stressed. The impact load causes the connecting rod mechanism to shake violently and make a lot of noise. The impact force acts directly on the hydraulic cylinder, causing the hydraulic cylinder to be damaged or leak oil frequently.

[0006] (2) The proximity switch of the linkage mechanism position detection system is not arranged properly, resulting in a complex structure of the proximity switch base, heavy weight, and high manufacturing cost.

[0007] (3) The mating surface between the support rod and the positioning block is a non-machined surface, making it difficult to accurately position the support rod, and the positioning accuracy of the movable support device is poor.

[0008] Therefore, it is necessary to develop a new type of active support device for coiling machine to solve the above problems of traditional technology. Utility Model Content

[0009] According to the technical problem raised above, a movable support device for a coiler is provided. The technical means adopted by the utility model are as follows:

[0010] A movable support device for a coiler comprises an inlet-side movable support device and an outlet-side movable support device. The structures of the inlet-side movable support device and the outlet-side movable support device both comprise a positioning block, a connecting rod mechanism and a movable support device body. The input end of the connecting rod mechanism is connected to a hydraulic cylinder, and the output end of the connecting rod mechanism is connected to the movable support device body. When the connecting rod is opened to the limit position, that is, when the movable support device body is in a working state, the entire connecting rod is in line with the axis of the end of a reel to be clamped. When the connecting rod is retracted to the limit position, that is, when the movable support device body is fully opened, the movable support device body is limited by the positioning block.

[0011] Furthermore, the inlet-side movable supporting device and the outlet-side movable supporting device are symmetrically arranged.

[0012] Furthermore, the connecting rod mechanism includes a first pin, a first sliding bearing group, a first connecting rod, a second pin, a second sliding bearing group, a second connecting rod, a third pin, a third sliding bearing group and a support rod, the first pin is connected to the first connecting rod through the first sliding bearing group, the first connecting rod is connected to the second connecting rod through the second pin, the second pin is configured with a second sliding bearing group, the second connecting rod is connected to the support rod through the third pin, the third pin is an eccentric pin with a preset eccentricity, the third pin is configured with a third sliding bearing group, and the support rod is an actuator of a movable support device.

[0013] Furthermore, it also includes a proximity switch group for detecting whether the movable supporting device is fully opened or fully closed, and the proximity switch group is installed on the base.

[0014] Furthermore, the proximity switch groups are arranged in an overlapping manner.

[0015] Furthermore, the first connecting rod is provided with contacts for detecting whether the movable supporting device is fully opened or fully closed.

[0016] Furthermore, the end of the movable support device body has a hinge point, and the hinge point is an eccentric pin shaft with a preset amount.

[0017] The utility model has the following advantages:

[0018] 1. Make full use of the mechanical dead point of the connecting rod mechanism, the direction of the connecting rod force is collinear, the torque is zero, and the impact load is directly transmitted to the coiler frame. The impact load of the coiler is the largest when the belt is threaded, so as to avoid the phenomenon of violent shaking and loud noise of the coiler body due to the instability of the connecting rod mechanism. At the same time, avoid the direct impact force on the hydraulic cylinder, which may cause damage to the hydraulic cylinder, oil leakage, etc.

[0019] 2. Optimize the position detection system, the proximity switch adopts overlapping layout, and the mechanical contacts adopt staggered distribution. The weight of the proximity switch base is reduced from 50kg to 24.4kg, a reduction of 51.2%, reducing the weight of the equipment and saving manufacturing costs.

[0020] 3. The joint surface between the support rod and the positioning block of the movable support device is machined, and the positioning block is assembled after installation to improve the positioning accuracy of the support rod and the positioning accuracy of the equipment.

[0021] 4. The movable support device has the function of fine-tuning in the horizontal and vertical directions, with an adjustment range of -4mm to 4mm, to eliminate the cumulative errors caused by processing and assembly. It ensures the position accuracy of the movable support device and the reel, improves the working performance of the coiler, and improves the quality of the finished coil. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0023] Figure 1 It is a schematic diagram of a traditional movable support device.

[0024] Figure 2 It is the front view of the movable support device (closed position) in this application.

[0025] Figure 3 It is the front view of the movable support device (open position) in this application.

[0026] Figure 4 It is the front view of the movable support device in this application.

[0027] Figure 5 It is a top view of the inlet side movable support device in this application.

[0028] Figure 6 It is a top view of the movable support device on the outlet side in this application.

[0029] Figure 7 It is a schematic diagram of the position detection system in this application. DETAILED DESCRIPTION

[0030] In order to make the purpose, technical solution and advantages of the embodiment of the utility model clearer, the technical solution in the embodiment of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiment of the utility model. Obviously, the described embodiment is a part of the embodiment of the utility model, not all of the embodiments. Based on the embodiment of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0031] like Figures 2 to 7 As shown, an embodiment of the utility model discloses a movable support device for a coiler. The movable support is applied to the coiler of a hot rolling production line to coil the strip into a coil for storage and transportation. Specifically, it includes an inlet-side movable support device 1 and an outlet-side movable support device 2. When the coiling is completed, the hydraulic cylinder retracts and the movable support is in an open state. The structures of the inlet-side movable support device and the outlet-side movable support device both include a positioning block, a connecting rod mechanism and a movable support device body. The input end of the connecting rod mechanism is connected to the hydraulic cylinder, and the output end of the connecting rod mechanism is connected to the movable support device body. When the connecting rod is opened to the limit position, that is, when the movable support device body is in the working state, the entire connecting rod is in line with the axis of the end of the reel to be clamped. When the connecting rod is retracted to the limit position, that is, when the movable support device body is in place, the movable support device body is limited by the positioning block. Figure 1 The prior art and the utility model Figure 2 It can be seen from the structural diagram that this embodiment makes full use of the mechanical dead point position of the connecting rod mechanism, the direction of the connecting rod force is collinear, the torque is zero, and the impact load is directly transmitted to the coiler frame. The impact load of the coiler is the largest when threading the belt, which avoids the phenomenon of violent shaking and loud noise of the coiler body due to the instability of the connecting rod mechanism. At the same time, it is avoided that the impact force component directly acts on the hydraulic cylinder, causing damage to the hydraulic cylinder, oil leakage, etc. In response to the changes in this embodiment, the setting positions of the positioning block and the proximity switch are different from those in the prior art. Both are set at a preset position above the axis of the end of the reel.

[0032] The inlet-side movable supporting device and the outlet-side movable supporting device are symmetrically arranged.

[0033] Specifically, the hydraulic cylinder 101 provides a power source for the inlet side movable support device 1. The proximity switch group 102 is used to detect whether the inlet side movable support device 1 is opened and closed, and provides an electrical signal for the electrical control system. The proximity switch group 102 is installed on the base 103. When the movable support device is opened, the positioning block 104 is used for mechanical limit. The thickness of the positioning block 104 is matched after installation to ensure positioning accuracy and improve positioning accuracy. The first pin 105 is connected to the first connecting rod 107 through a sliding bearing group 106. The first sliding bearing group 106 is suitable for heavy-load working scenes and can especially withstand huge impact loads. The first connecting rod 107 is connected to the second connecting rod 110 through a second pin 108. The second pin 108 is equipped with a second sliding bearing group 109. The second connecting rod 110 is connected to the support rod 113 through a third pin 111. The third pin 111 is an eccentric pin with an eccentricity of 4 mm to achieve a fine-tuning function in the horizontal direction. The third pin shaft 111 is provided with a sliding bearing group 112, and the support rod 113 is an actuator of the inlet side movable support device 1. The fourth pin shaft 114 is an eccentric pin shaft with an eccentricity of 4 mm to achieve a fine adjustment function in the vertical direction.

[0034] The hydraulic cylinder 201 provides a power source for the outlet side movable support device 2. The proximity switch group 202 is used to detect whether the outlet side movable support device 2 is opened and closed, and provides an electrical signal for the electrical control system. The proximity switch group 202 is installed on the base 203. When the movable support device is opened, the positioning block 204 is used for mechanical limiting. The thickness size of the positioning block 204 is matched after installation to ensure positioning accuracy and improve positioning accuracy. The pin 205 is connected to the connecting rod 207 through the sliding bearing group 206. The sliding bearing group 206 is suitable for heavy-load working scenes and can especially withstand huge impact loads. The connecting rod 207 is connected to the connecting rod 210 through the pin 208, and the pin 208 is equipped with a sliding bearing group 209. The connecting rod 210 is connected to the support rod 213 through the pin 211. The pin 211 is an eccentric pin with an eccentricity of 4mm to achieve the fine-tuning function in the horizontal direction. The pin 211 is provided with a sliding bearing group 212, and the support rod 213 is an actuator of the outlet side movable support device 2. The pin 214 is an eccentric pin with an eccentricity of 4 mm to achieve a fine adjustment function in the vertical direction.

[0035] It also includes a proximity switch group for detecting whether the movable support device is fully opened and fully closed, and the proximity switch group is installed on the base. The proximity switch group is arranged in an overlapping manner. It should be noted that the proximity switch detection device used in the present invention can adopt the structure of the original system, but compared with the prior art, the proximity switches of the present invention are arranged in an overlapping manner and the mechanical contacts are distributed in a staggered manner. The weight of the proximity switch base is reduced from 50kg to 24.4kg, a reduction of 51.2%, which reduces the weight of the equipment and saves manufacturing costs.

[0036] In this embodiment, the proximity switch group 102 and the proximity switch group 202 are arranged in an overlapping manner, and are respectively used to detect whether the movable support device is fully opened or fully closed. Corresponding mechanical contacts are respectively provided on the connecting rod 107 and the connecting rod 207. Theoretical calculations show that the phase angle is 63°.

[0037] The end of the movable support device body is provided with a hinge point, and the hinge point is an eccentric pin shaft with a preset amount.

[0038] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the utility model, rather than to limit it. Although the utility model has been described in detail with reference to the aforementioned embodiments, ordinary technicians in this field should understand that they can still modify the technical solutions recorded in the aforementioned embodiments, or replace some or all of the technical features therein with equivalents. However, these modifications or replacements do not make the essence of the corresponding technical solution deviate from the scope of the technical solution of the embodiments of the utility model.

Claims

1. A movable support device for a coiler, It is characterized in that It includes an inlet side movable support device and an outlet side movable support device. The structures of the inlet side movable support device and the outlet side movable support device both include a positioning block, a connecting rod mechanism and a movable support device body. The input end of the connecting rod mechanism is connected to the hydraulic cylinder, and the output end of the connecting rod mechanism is connected to the movable support device body. When the connecting rod is opened to the limit position, that is, when the movable support device body is in a working state, the connecting rod as a whole is colinear with the axis of the end of the reel to be clamped. When the connecting rod is retracted to the limit position, that is, when the movable support device body is opened to the full position, the movable support device body is limited by the positioning block.

2. The movable support device for the coiler according to claim 1, It is characterized in that The inlet-side movable supporting device and the outlet-side movable supporting device are symmetrically arranged.

3. The movable support device for the coiler according to claim 1, It is characterized in that The connecting rod mechanism includes a first pin, a first sliding bearing group, a first connecting rod, a second pin, a second sliding bearing group, a second connecting rod, a third pin, a third sliding bearing group and a support rod. The first pin is connected to the first connecting rod through the first sliding bearing group, the first connecting rod is connected to the second connecting rod through the second pin, the second pin is equipped with a second sliding bearing group, the second connecting rod is connected to the support rod through the third pin, the third pin is an eccentric pin with a preset eccentricity, the third pin is equipped with a third sliding bearing group, and the support rod is an actuator of a movable support device.

4. The movable support device for a coiler according to claim 1, It is characterized in that It also includes a proximity switch group for detecting whether the movable supporting device is fully opened or fully closed, and the proximity switch group is installed on the base.

5. The movable support device for the coiler according to claim 4, It is characterized in that The proximity switch group is arranged in an overlapping manner.

6. The movable support device for a coiler according to claim 1, 4 or 5, It is characterized in that The first connecting rod is provided with a contact for detecting whether the movable supporting device is fully opened or fully closed.

7. The movable support device for a coiler according to claim 1, It is characterized in that The end of the movable support device body is provided with a hinge point, and the hinge point is an eccentric pin shaft with a preset amount.

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