Billet scale verification system

Abstract

The utility model discloses a steel billet scale verification system. The device at least comprises a weighing device and a fixed-weight blank storage rack arranged on the weighing device. Wherein the weighing device comprises a frame and a plurality of weighing modules arranged below the frame; a plurality of roller ways are arranged on the frame at intervals; wherein the frame is composed of a first weighing frame and a second weighing frame which are the same in length; and the end parts of the first weighing frame and the second weighing frame are in clearance lap joint. The steel billet scale verification system is simple and compact in equipment structure, convenient to process, transport and install, and small in daily maintenance amount.

Description

Technical Field

[0001] The utility model relates to a steel billet scale calibration system. Background Art

[0002] In the field of metallurgical equipment technology, billet weighing is one of the common equipment in front of the steel rolling heating furnace. It is mainly used to weigh and count the billets entering the furnace, so as to calculate the yield rate of the rolling line. However, after a period of use, the weighing module will have deviations in accuracy and needs to be calibrated in time.

[0003] The current calibration method mainly involves manually lifting the calibrated billet onto the weighing device via a crane. After the weighing module is calibrated, it is lifted off by the crane. The whole process takes about 10 minutes. The weighing module needs to be calibrated regularly. This calibration method not only increases the labor intensity of workers, but also has low work efficiency, greatly affecting the billet loading rate and rolling line output. Utility Model Content

[0004] In view of the above problems, the utility model aims to provide a billet scale calibration system.

[0005] In order to achieve the above-mentioned purpose, the utility model provides a steel billet scale calibration system, wherein the system at least comprises a weighing device and a fixed-weight billet storage rack arranged on the weighing device; wherein the weighing device comprises a frame and a plurality of weighing modules arranged below the frame; a plurality of rollers are arranged at intervals on the frame; wherein the frame consists of a first weighing frame and a second weighing frame of the same length; and the first weighing frame and the second weighing frame are overlapped at their ends.

[0006] Furthermore, a limiting device is arranged at the bottom of both ends of the frame; the limiting device comprises a second limiting bracket arranged below the frame and one or more first limiting brackets corresponding to the second limiting bracket on the foundation; the first limiting bracket and the second limiting bracket are arranged at intervals.

[0007] Furthermore, the second limiting bracket includes a second bracket seat arranged below the frame, and a limiting block is arranged below the bracket seat;

[0008] The first limiting bracket comprises a first bracket seat arranged on the foundation; a limiting nut is arranged on the first bracket seat; a limiting bolt is threaded in the limiting nut, and the limiting end of the bolt is spaced apart from the limiting block.

[0009] Furthermore, the spacing distance between the limiting end of the bolt and the limiting block is 0.5-2 mm.

[0010] Furthermore, the lower surfaces of the adjacent ends of the first limiting bracket and the second limiting bracket are both provided with supports; the two supports are connected by a connecting plate.

[0011] Furthermore, the rollers are symmetrically and cross-arranged on the first weighing frame and the second weighing frame.

[0012] Furthermore, the fixed weight billet storage rack includes a bracket, a crossbeam, a lifting cylinder, a connecting head, a pin shaft, and a storage frame; the crossbeam is fixedly connected to the bracket by bolts, the lifting cylinder is fixed to the top of the crossbeam by bolts, the connecting head is threadedly connected to the piston rod of the lifting cylinder, and the storage frame is connected to the connecting head by the pin shaft.

[0013] Furthermore, a latch cylinder is fixed on the side of the cross beam by bolts, and a latch hole is provided on the storage frame corresponding to the piston rod of the latch cylinder.

[0014] In order to achieve the above object, the billet scale calibration method of the utility model is implemented by the above system, and the method comprises the following steps:

[0015] After the PLC system recognizes that the weighing module is calibrated, the piston rod of the latch cylinder retracts, the storage frame of the weighed billet storage rack moves to a low position, and the calibrated billet is placed on the roller table of the weighing device;

[0016] Automatically verifying the weighing module 103;

[0017] After the calibration is completed, the storage frame of the weight-fixed billet storage rack lifts the calibrated billet to a high position, and the piston rod of the latch cylinder extends;

[0018] The weighing device is put back into use to weigh the steel billets entering the furnace.

[0019] Furthermore, the method further includes a method for loading the calibration billet, comprising:

[0020] The piston rod of the latch cylinder retracts, and the storage frame of the fixed weight billet storage rack moves to the lowest position;

[0021] The transport roller conveys the calibrated billet to the weighing device area;

[0022] After the metal detector detects the steel billet, the transport roller starts to slow down and measures the distance through the encoder;

[0023] After the transport roller 4 continues to transport a distance of L=L5+L6, it stops moving;

[0024] The storage frame 206 of the weight-fixed billet storage rack lifts the calibrated billet to move to a high position, and the piston rod of the latch cylinder 208 extends out.

[0025] Compared with the prior art, the technical solution provided by the utility model has the following significant effects:

[0026] (1) The utility model provides a billet scale calibration system, which has a simple and compact structure, is easy to process, transport and install, and requires little daily maintenance.

[0027] (2) The lifting cylinder and latch cylinder of the utility model are both equipped with displacement sensors. Through the PLC intelligent control system, the entire calibration process is made unmanned and efficient, which improves the furnace loading rhythm and production efficiency and reduces the labor intensity of personnel. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] Figure 1 It is a schematic elevation diagram of the intelligent calibration system and device for steel billet scales of the utility model;

[0029] Figure 2 yes Figure 1 The storage frame of the K-direction view is at a high position;

[0030] Figure 3 yes Figure 1 The storage frame of the K-direction view is at a low position;

[0031] Figure 4 yes Figure 3 I is a partial enlarged schematic diagram;

[0032] Figure 5 yes Figure 2 AA sectional view;

[0033] Figure 6 yes Figure 3 BB section view;

[0034] Figure 7 It is a schematic diagram of a storage frame;

[0035] Figure 8 The flow chart of loading and calibrating steel billets of the utility model steel billet scale calibration system and device;

[0036] Fig. 9 The billet scale calibration flow chart of the utility model billet scale calibration system and device;

[0037] Fig.10 It is a schematic elevation view of a weighing device of an online intelligent and precise weighing system for steel billets of the utility model;

[0038] Fig.11 yes Fig.10 Schematic diagram of L direction;

[0039] Fig.12 This is a schematic elevation diagram of a weighing module of an online intelligent and precise weighing system for steel billets of the utility model;

[0040] Fig.13 yes Fig.10 AA sectional view;

[0041] Fig.14 yes Fig.13 I is a partial enlarged schematic diagram;

[0042] Fig.15 yes Fig.10 K-direction schematic diagram;

[0043] Fig.16 for Fig.10 A partially enlarged schematic diagram of the middle part;

[0044] In the figure: 1, weighing device 2, fixed weight blank storage rack 3, metal detector 4, transport roller 101, first weighing frame 102 second weighing frame 103, weighing module 104, roller 105, limit bracket (one) 106, limit bracket (two) 107, support 108, upper positioning plate 109, lower positioning plate 110, connecting plate 111, pin 112, adjusting screw 113, nut (one) 114, nut (two) 115, pressure head 201, bracket 202, crossbeam 203, lifting cylinder 204, connecting head 205, pin 206, storage frame 207, first sleeve 208, latch cylinder 209, second sleeve 210, limit plate DETAILED DESCRIPTION

[0045] The embodiments of the utility model are described in detail below with reference to the accompanying drawings.

[0046] In the description of the present invention, it should be understood that the terms "center", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating directions or positional relationships, are based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore should not be understood as a limitation on the present invention.

[0047] The terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the features. In the description of the present utility model, unless otherwise specified, "plurality" means two or more.

[0048] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a direct connection, or an indirect connection through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0049] The utility model of the billet scale calibration system, the system at least includes a weighing device and a fixed weight billet storage rack arranged on the weighing device; wherein the weighing device includes a frame and a plurality of weighing modules arranged below the frame; a plurality of rollers are arranged at intervals on the frame; wherein the frame is composed of a first weighing frame and a second weighing frame of the same length; the first weighing frame and the second weighing frame are overlapped at the end. As shown in the figure, a 10mm gap H is left between the two end surfaces of the first weighing frame and the second weighing frame, so that the first weighing frame and the second weighing frame can have a certain deformation along the center line M direction.

[0050] Example 1

[0051] Combination Fig.10 , Fig.11 , Fig.13 The weighing device of this embodiment includes a weighing device 1, a metal detector 2, and a conveying roller 3. The conveying roller 3 is arranged at the entrance of the billet conveying direction, and the metal detector 2 is arranged between the conveying roller 3 and the weighing device 1.

[0052] The weighing device 1 includes a first weighing frame 101, a second weighing frame 102, a weighing module 103, a roller 104, a limit bracket (one) 105, a limit bracket (two) 106, and a support 107. The roller 104 and the support 107 are fixed to the bottom surface of the first weighing frame 101 and the second weighing frame 102 by bolts. The pressure head 115 of the weighing module 103 is installed in the pin hole on the bottom surface of the first weighing frame 101 and the second weighing frame 102. The limit bracket (one) 105 is fixed to the ground by anchor bolts, and the limit bracket (two) 106 is fixed to the bottom surface of the first weighing frame 101 and the second weighing frame 102 by welding.

[0053] Furthermore, a 10 mm gap H is left between the two end surfaces of the first weighing frame and the second weighing frame, so that the first weighing frame and the second weighing frame can be deformed to a certain extent along the center line M direction.

[0054] Example 2

[0055] Combination Fig.11 , Fig.12 The structure of the weighing device of this embodiment is basically the same as that of Embodiment 1, except that the first weighing frame 101 and the second weighing frame 102 are symmetrical structures along the center line M, and are connected by overlapping, with a 10 mm gap between the upper and lower end surfaces.

[0056] The rollers 104 are symmetrically arranged on the first weighing frame 101 and the second weighing frame 102. The weighing modules 103 are symmetrically arranged along the center line M, and at least 6 are arranged. The weighing modules 103 are symmetrically arranged along the center line N.

[0057] Example 3

[0058] Combination Fig.12 , Fig.13 , Fig.14 The structure of this embodiment is basically the same as that of Embodiment 1, except that an upper positioning plate 108 is welded to the bottom of the first weighing frame 101, and a lower positioning plate 109 is welded to the top of the second weighing frame 102. The upper positioning plate 108 and the lower positioning plate 109 are symmetrically arranged along the center line M. The inner top surface A of the upper positioning plate 108 and the lower positioning plate 109 plays a bearing role, the side surface B plays a positioning role along the roller axis direction, and a 2mm gap is reserved on the outer top surface C. The first weighing frame 101 and the second weighing frame 102 are connected by bolts 109. Considering the deformation factor, the connection hole of the first weighing frame 101 is a waist-shaped hole.

[0059] A connecting plate 110 is arranged between the supports 107. Pin holes are arranged at both ends of the connecting plate 110. The pin holes are connected to the supports 107 through pin shafts 111. The supports 107 are symmetrically arranged along the center line M, and are arranged at 4 locations in total.

[0060] Example 4

[0061] Combination Fig.11 , Fig.16 The weighing device of this embodiment has a structure basically similar to that of Embodiment 1, except that the position limiting bracket (II) 106 is symmetrically arranged along the center line N and is disposed at the center line M. The position limiting bracket (I) 105 is respectively arranged on the left side, the right side and the inner side of the position limiting bracket (II) 106.

[0062] The limit bracket (I) 105 is provided with an adjusting screw 112. Considering the deformation of the first weighing frame 101 and the second weighing frame 102, a gap of 1 mm is set between the adjusting screw 112 and the limit block on the limit bracket (II) 106.

[0063] The limiting bracket (1) 105 is provided with a nut (1) 113 and a nut (2) 114 . The nut (2) 114 is welded to the limiting bracket (1) 105 . The nut (1) 113 is movable and adjustable.

[0064] Example 5

[0065] Combination Figure 1 , Figure 2 , Figure 5 The present embodiment is a billet scale calibration system and device, comprising a weighing device 1, a fixed-weight billet storage rack 2, a metal detector 3, and a transport roller 4. The transport roller 4 is arranged at the entrance of the billet transport direction, and the metal detector 3 is arranged between the transport roller 4 and the weighing device 1. The fixed-weight billet storage rack 2 is evenly arranged in the area of ​​the weighing device 1.

[0066] The weighing device 1 includes a first weighing frame 101, a second weighing frame 102, a weighing module 103, a roller 104, a limit bracket (one) 105, a limit bracket (two) 106, and a support 107. The roller 104 and the support 107 are fixed to the bottom surfaces of the first weighing frame 101 and the second weighing frame 102 by bolts. The limit bracket (one) 105 is fixed to the ground by anchor bolts, and the limit bracket (two) 106 is fixed to the bottom surfaces of the first weighing frame 101 and the second weighing frame 102 by welding.

[0067] The fixed weight blank storage rack 2 includes a bracket 201, a crossbeam 202, a lifting cylinder 203, a connector 204, a pin 205, a storage frame 206, a first sleeve 207, a latch cylinder 208, a second sleeve 209, and a limit plate 210. The crossbeam 202 is fixedly connected to the bracket 201 by bolts, the lifting cylinder 203 is fixed to the top of the crossbeam 202 by bolts, the connector 204 is threadedly connected to the piston rod of the lifting cylinder 203, and the storage frame 206 is connected to the connector 204 by the pin 205. The latch cylinder 208 is fixed to the side of the crossbeam 202 by bolts.

[0068] Example 6

[0069] Combination Figure 2 , Figure 3 , Figure 4The billet scale calibration system and device of this embodiment has a structure basically the same as that of the first embodiment, except that the roller 104 has rims or side baffles on both sides. When the storage rack 206 is in a low position, in order to avoid collision during the transportation of the calibration billet, the A contour line of the storage rack 206 is located outside the B contour line of the rims or side baffles on both sides of the roller 104. When the storage rack 206 is in a low position, considering the deformation of the calibration billet, in order to completely separate from the calibration billet, the distance between the inner side D of the lower bottom surface of the storage rack 206 and the upper surface C of the roller 104 is not less than 50 mm. When the storage rack 206 is in a high position, in order to prevent collision with the billet entering the furnace, the distance between the outer side E of the lower bottom surface of the storage rack 206 and the upper surface C of the roller 104 is not less than twice the height of the billet.

[0070] Example 7

[0071] Combination Figure 5 , Figure 6 , Figure 7 , a billet scale calibration system and device of this embodiment, its structure is basically the same as that of embodiment 1, the difference and improvement is that the limit plates 210 provided on the crossbeam 202 are arranged symmetrically, the distance is L1mm, the width of the storage frame 206 is L2mm, and the difference between L1 and L2 is not less than 10mm. The latch cylinder 208 is a water-cooled cylinder, installed horizontally, and equipped with a displacement sensor. The first sleeve 207 and the second sleeve 209 are provided in the holes where the crossbeam 202 and the piston rod of the latch cylinder 208 cooperate. The outer surfaces of the first sleeve 207 and the second sleeve 209 are interference fit with the hole of the crossbeam 202. The length L3 of the piston rod of the latch cylinder 208 after it is fully extended is greater than L4. The difference between the diameter D2 of the lower hole of the storage frame 206 and the diameter D1 of the piston rod of the latch cylinder 208 is not less than 10mm. The lifting cylinder 203 is equipped with a displacement sensor. The transport roller 4 is equipped with an encoder.

[0072] Example 8

[0073] Combination Figure 8 , Fig. 9 , the verification method, the implementation steps are:

[0074] 1. Load the calibration billet

[0075] Step 1: The piston rod of the latch cylinder 208 is retracted, and the storage frame 206 of the fixed weight blank storage rack 2 moves to the lowest position;

[0076] Step 2: The transport roller 4 transports the calibrated steel billet to the weighing device 1 area;

[0077] Step 3: The metal detector 2 detects the steel billet, the roller 4 starts to slow down, and the encoder is used to measure the distance;

[0078] Step 4: After the transport roller 4 continues to transport a distance of L=L5+L6, it stops moving;

[0079] Step 5: The storage frame 206 of the weight-fixed billet storage rack 2 lifts the calibrated billet to a high position, and the piston rod of the latch cylinder 208 extends.

[0080] 2. Billet weighing verification

[0081] Step 1: After the PLC system recognizes that the weighing module 103 needs to be calibrated, the piston rod of the latch cylinder 208 retracts, the storage frame 206 of the weighing billet storage rack 2 moves to a low position, and the calibrated billet is placed on the roller table 104 of the weighing device 1;

[0082] Step 2: The system automatically verifies the weighing module 103;

[0083] Step 3: After the calibration is completed, the storage frame 206 of the weight-fixed billet storage rack 2 lifts the calibrated billet to a high position, and the piston rod of the latch cylinder 208 extends;

[0084] Step 4: The weighing device 1 is put back into use to weigh the billets entering the furnace.

[0085] The utility model is described in detail above in conjunction with the accompanying drawings, but the utility model is not limited to the above embodiments, and various changes can be made within the knowledge of ordinary technicians in the field without departing from the purpose of the utility model. Many other changes and modifications that do not depart from the concept and scope of the utility model should be considered as the protection scope of the utility model.

[0086] In the description of this specification, specific features, structures, materials or characteristics may be combined in an appropriate manner in any one or more embodiments or examples.

[0087] The above is only a specific implementation of the utility model, but the protection scope of the utility model is not limited thereto. Any technician familiar with the technical field can easily think of changes or substitutions within the technical scope disclosed by the utility model, which should be included in the protection scope of the utility model. Therefore, the protection scope of the utility model should be based on the protection scope of the claims.

Claims

1. A billet scale calibration system, characterized in that: The system at least comprises a weighing device and a fixed weight blank storage rack arranged on the weighing device; wherein the weighing device comprises a frame and a plurality of weighing modules arranged below the frame; a plurality of rollers are arranged at intervals on the frame; wherein the frame consists of a first weighing frame and a second weighing frame of the same length; and the first weighing frame and the second weighing frame are overlapped at their ends.

2. The billet scale calibration system according to claim 1, characterized in that: A limiting device is arranged at the bottom of both ends of the frame; the limiting device comprises a second limiting bracket arranged below the frame and one or more first limiting brackets corresponding to the second limiting bracket on the foundation; the first limiting bracket and the second limiting bracket are arranged at intervals.

3. The billet scale calibration system according to claim 2, characterized in that: The second limiting bracket includes a second bracket seat arranged below the frame, and a limiting block is arranged below the bracket seat; The first limiting bracket comprises a first bracket seat arranged on the foundation; a limiting nut is arranged on the first bracket seat; a limiting bolt is threaded in the limiting nut, and the limiting end of the bolt is spaced apart from the limiting block.

4. The billet scale calibration system according to claim 3, characterized in that: The spacing distance between the limiting end of the bolt and the limiting block is 0.5-2 mm.

5. The billet scale calibration system according to claim 2, characterized in that: The lower surfaces of the adjacent ends of the first limiting bracket and the second limiting bracket are both provided with supports; the two supports are connected by a connecting plate.

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