Wire weighing machine valve table

Abstract

The embodiment of the application discloses a wire weighing machine valve table, and relates to the technical field of hydraulic weighing, in particular to a wire weighing machine valve table, which comprises a mounting rack, a hydraulic valve block is fixedly installed at the top of the mounting rack, and the top of the hydraulic valve block is provided with a double one-way throttling valve, a double hydraulic control one-way valve, a superimposed pressure reducing valve and a bidirectional electromagnetic reversing valve, and the side surface of the hydraulic valve block is fixedly connected with a pressure sensor and a temperature sensor. The wire weighing machine valve table is 10 gauge in whole, and the double one-way throttling valve, the double hydraulic control one-way valve, the superimposed pressure reducing valve and the bidirectional electromagnetic reversing valve are arranged on the hydraulic valve block. When hydraulic oil enters the inside of the hydraulic valve block through the oil inlet pipe, the hydraulic oil can flow in the valve bodies, the effect of controlling the hydraulic flow is achieved, the ascending and descending speed of the equipment is adapted to the production speed, the impact force on the valve table is reduced, the sensor connection contact and the connecting bolt are prevented from being damaged, and the influence on production is avoided.

Description

Technical Field

[0001] This application relates to the field of hydraulic weighing technology, and more specifically, to a valve platform for a wire weighing machine. Background Technology

[0002] Currently, with industrial development, equipment is becoming increasingly sophisticated. However, the high cost of current equipment increases the cost of weighing heavy goods. Hydraulic weighing methods are now widely used for this purpose. Hydraulic weighing equipment is widely applied in industry, such as the common hydraulic wire weighing machine.

[0003] In existing technologies, when using hydraulic wire rod weighing machines to weigh steel wire rods, the steel coils are placed on the weighing machine, which applies pressure to the hydraulic system. Weighing is achieved by monitoring the hydraulic oil pressure. Currently, common wire rod weighing machines typically use hydraulic valve platforms with a 16mm diameter. During weighing, the high hydraulic oil flow rate causes the valve platform to vibrate with each rise and fall of the steel coil, resulting in significant impact forces on the valve platform. Furthermore, the excessive internal impact forces during valve platform operation can easily lead to… Damage to the pressure sensor connecting bolts and sensor contacts can lead to a sharp decrease in production efficiency, and sensor damage can cause inaccurate measurements, potentially resulting in steel coils needing to be returned to the weigh station, increasing workload. Furthermore, the viscosity of hydraulic oil changes due to external temperature fluctuations. These changes alter the friction between the hydraulic oil and the hydraulic valve components, potentially causing slight differences in hydraulic oil pressure compared to normal values, thus reducing weighing accuracy. Therefore, we propose a valve platform for a wire weighing machine to address these issues. Summary of the Invention

[0004] In view of the above problems, this application proposes a valve platform for a wire weighing machine to improve the above problems.

[0005] To achieve the above objectives, the present invention provides the following technical solution: a valve platform for a wire weighing machine, comprising a mounting frame, a hydraulic valve block fixedly mounted on the top of the mounting frame, and the top of the hydraulic valve block being provided with a double one-way throttle valve, a double hydraulically controlled one-way valve, a stacked pressure reducing valve, and a two-way electromagnetic reversing valve; a pressure sensor and a temperature sensor fixedly connected to the side of the hydraulic valve block; an oil inlet pipe fixedly connected to the front of the hydraulic valve block, and a first temperature regulating mechanism provided on the oil inlet pipe; an oil outlet pipe fixedly connected to the side of the hydraulic valve block away from the pressure sensor, and a second temperature regulating mechanism provided on the oil outlet pipe; the first temperature regulating mechanism and the second temperature regulating mechanism have the same structure; the first temperature regulating mechanism includes a first half-tube and a second half-tube, and a cooling pipe and a heating wire are provided inside the first half-tube and the second half-tube; a chiller, a first temperature controller, and a second temperature controller that cooperate with the first temperature regulating mechanism and the second temperature regulating mechanism are fixedly mounted inside the mounting frame.

[0006] Preferably, the dual one-way throttle valve, dual hydraulic control one-way valve, stacked pressure reducing valve, and bidirectional electromagnetic directional valve are sequentially fixedly installed on the top of the hydraulic valve block, and the interfaces between each valve body correspond to each other and are sealed.

[0007] Preferably, both the first and second semi-circular tubes are hollow semi-cylindrical structures, and both the first and second semi-circular tubes are provided with flanges. A locking screw is snapped onto the flange of the first semi-circular tube, and the locking screw can be threadedly connected to the second semi-circular tube.

[0008] Preferably, the water chiller has an inlet main pipe fixedly connected to its outlet and a return main pipe fixedly connected to its outlet. The inlet main pipe is fixedly connected to one end of the cooling pipe in the first temperature regulating mechanism and the second temperature regulating mechanism, and the return main pipe is fixedly connected to the other end of the cooling pipe in the first temperature regulating mechanism and the second temperature regulating mechanism.

[0009] Preferably, the first temperature controller is located below the second temperature regulating mechanism, and the first temperature controller is electrically connected to the heating wire in the second temperature regulating mechanism. The second temperature controller is located below the first temperature regulating mechanism, and the second temperature controller is electrically connected to the heating wire in the first temperature regulating mechanism.

[0010] Preferably, the cooling pipe and heating wire are spirally wound around the outside of the oil inlet pipe or oil outlet pipe, and the cooling pipe and heating wire are distributed in a double spiral winding.

[0011] Preferably, the interior of the first and second semi-enclosed tubes is filled with thermally conductive filler, and both the first and second semi-enclosed tubes are provided with sealing heads at their ends.

[0012] The wire weighing machine valve platform provided in this application has the following beneficial effects:

[0013] 1. The valve platform of this wire weighing machine is 10mm in diameter. It is equipped with double one-way throttle valves, double hydraulic control check valves, stacked pressure reducing valves, and two-way solenoid directional valves. When hydraulic oil enters the hydraulic valve platform through the inlet pipe, it can flow inside each valve body to control the hydraulic flow rate. This allows the equipment's rising and falling speed to match the production speed, while reducing the impact force on the valve platform, preventing damage to the sensor contact points and connecting bolts, avoiding production disruptions, and ensuring that the sensor is always in normal working order, thus improving weighing accuracy.

[0014] 2. The valve platform of this wire weighing machine uses a temperature sensor to detect the temperature of the hydraulic oil inside the hydraulic valve block. The weighing machine control system can control the cooling pipes and heating wires in the first and second temperature adjustment mechanisms according to the temperature feedback to adjust the temperature of the incoming and outgoing hydraulic oil, so that the hydraulic oil temperature is always kept at a suitable temperature, avoiding the impact of hydraulic oil temperature on weighing accuracy.

[0015] 3. The valve platform of the wire weighing machine is equipped with cooling pipes and heating wires in both the first and second temperature adjustment mechanisms. It can adjust the temperature of the hydraulic oil in both directions according to the temperature detection feedback, and can realize the cooling and heating of the hydraulic oil. It is applicable to a wider range of working conditions. In addition, the first half of the tube and the second half of the tube are filled with heat-conducting filler, making the temperature adjustment more sensitive and reducing energy consumption. Attached Figure Description

[0016] To more clearly illustrate the technical solutions in the embodiments of this application, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0017] Figure 1 This illustration shows a schematic diagram of the overall assembly proposed in the embodiments of this application;

[0018] Figure 2 A schematic diagram of the top of the hydraulic valve block according to an embodiment of this application is shown;

[0019] Figure 3 This illustration shows a front view of the mounting rack according to an embodiment of this application;

[0020] Figure 4 A schematic diagram of the interior of the temperature regulating mechanism proposed in an embodiment of this application is shown;

[0021] Figure 5A schematic diagram of the cooling pipe and heating wire proposed in the embodiments of this application is shown;

[0022] Figure 6 The diagram shows a first half-tube and a second half-tube according to an embodiment of this application.

[0023] In the diagram: 1. Mounting frame; 2. Hydraulic valve block; 3. Dual one-way throttle valve; 4. Dual hydraulic control check valve; 5. Stacked pressure reducing valve; 6. Two-way solenoid directional valve; 7. Oil inlet pipe; 8. Oil outlet pipe; 9. First temperature regulating mechanism; 91. First half-pipe; 92. Second half-pipe; 93. Locking screw; 94. Cooling pipe; 95. Heating wire; 10. Chiller; 11. Main water inlet pipe; 12. Main water return pipe; 13. First temperature controller; 14. Second temperature controller; 15. Second temperature regulating mechanism; 16. Pressure sensor; 17. Temperature sensor. Detailed Implementation

[0024] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of this application.

[0025] Please see Figure 1 , 2This invention provides a technical solution: a valve platform for a wire weighing machine, including a mounting frame 1. A hydraulic valve block 2 is fixedly mounted on the top of the mounting frame 1. The top of the hydraulic valve block 2 is equipped with a double one-way throttle valve 3, a double hydraulically controlled one-way valve 4, a stacked pressure reducing valve 5, and a two-way electromagnetic reversing valve 6. When hydraulic oil enters the hydraulic valve block 2 through the inlet pipe 7, it can flow inside each valve body to control the hydraulic flow rate, making the equipment's rising and falling speed match the production speed, while reducing the impact force on the valve platform. A pressure sensor 16 and a temperature sensor 17 are fixedly connected to the side of the hydraulic valve block 2. An inlet pipe 7 is fixedly connected to the front of the hydraulic valve block 2, and a first temperature regulating mechanism 9 is provided on the inlet pipe 7. An outlet pipe 8 is fixedly connected to the side of the hydraulic valve block 2 away from the pressure sensor 16, and a second temperature regulating mechanism 15 is provided on the outlet pipe 8. The temperature sensor 17 monitors the temperature of the hydraulic oil inside the hydraulic valve block 2. The weighing machine control system can detect the temperature and control the cooling pipes 94 and heating wires 95 in the first temperature regulating mechanism 9 and the second temperature regulating mechanism 15 according to the temperature feedback. This regulates the temperature of the hydraulic oil entering and exiting the machine, keeping the hydraulic oil temperature at a suitable level. The first temperature regulating mechanism 9 and the second temperature regulating mechanism 15 have the same structure. The first temperature regulating mechanism 9 includes a first half-tube 91 and a second half-tube 92. The cooling pipes 94 and heating wires 95 are installed inside the first half-tube 91 and the second half-tube 92. The mounting frame 1 is fixedly installed with a chiller 10, a first temperature controller 13, and a second temperature controller 14 that cooperate with the first temperature regulating mechanism 9 and the second temperature regulating mechanism 15. It is equipped with cooling pipes 94 and heating wires 95 and can perform bidirectional temperature regulation of the hydraulic oil according to the temperature detection feedback. This allows for both cooling and heating of the hydraulic oil, making it suitable for a wider range of working conditions.

[0026] Please see Figure 2 The double one-way throttle valve 3, the double hydraulic control one-way valve 4, the stacked pressure reducing valve 5, and the two-way electromagnetic reversing valve 6 are sequentially fixed on the top of the hydraulic valve block 2. The interfaces between each valve body correspond to each other and are sealed. When the hydraulic oil enters the hydraulic valve block 2 through the oil inlet pipe 7, it can flow inside each valve body to achieve the effect of controlling the hydraulic flow, so that the rising and falling speed of the equipment is adapted to the production speed, while reducing the impact force on the valve platform and avoiding damage to the sensor contact points and connecting bolts.

[0027] Please see Figure 3 , 6Both the first half-tube 91 and the second half-tube 92 are hollow semi-cylindrical structures. Both are equipped with flanges. A locking screw 93 is snapped onto the flange of the first half-tube 91, and the locking screw 93 can be threaded into the second half-tube 92. The first half-tube 91 and the second half-tube 92 are fixedly installed on the oil inlet pipe 7 or the oil outlet pipe 8 by the locking screw 93, ensuring their stability during operation. The lengths of the first half-tube 91 and the second half-tube 92 can be customized according to the length of the oil inlet pipe 7 or the oil outlet pipe 8. A main water inlet pipe 11 is fixedly connected to the outlet of the chiller 10, and a main water return pipe 12 is fixedly connected to the outlet. The main water inlet pipe 11 is fixedly connected to one end of the cooling pipe 94 in the first temperature regulating mechanism 9 and the second temperature regulating mechanism 15, and the main water return pipe 12 is fixedly connected to the other end of the cooling pipe 94 in the first temperature regulating mechanism 9 and the second temperature regulating mechanism 15. The main inlet pipe 11 and the main return pipe 12 conduct cooling water to ensure that the chiller 10 can synchronously supply cooling water to the cooling pipes 94 in the first temperature regulating mechanism 9 and the second temperature regulating mechanism 15, thereby achieving synchronous cooling of the hydraulic oil in the oil inlet pipe 7 and the oil outlet pipe 8. The first temperature controller 13 is located below the second temperature regulating mechanism 15 and is electrically connected to the heating wire 95 in the second temperature regulating mechanism 15. The second temperature controller 14 is located below the first temperature regulating mechanism 9 and is electrically connected to the heating wire 95 in the first temperature regulating mechanism 9. The weighing machine control system can control the operation of the cooling pipes 94 and the heating wire 95 in the first temperature regulating mechanism 9 and the second temperature regulating mechanism 15 according to temperature feedback, thereby regulating the temperature of the incoming and outgoing hydraulic oil to keep the hydraulic oil temperature at a suitable level and avoid the hydraulic oil temperature affecting the weighing accuracy.

[0028] Please see Figure 4 , 5 The cooling pipe 94 and the heating wire 95 are spirally wound around the outside of the oil inlet pipe 7 or the oil outlet pipe 8, and the cooling pipe 94 and the heating wire 95 are double spirally wound to ensure that the cooling pipe 94 and the heating wire 95 can fully contact the oil inlet pipe 7 or the oil outlet pipe 8, ensuring the cooling or heating effect of the hydraulic oil. The inside of the first half-pipe 91 and the second half-pipe 92 is filled with heat-conducting filler, which conducts heat through the heat-conducting filler, making the temperature regulation more sensitive and reducing energy consumption. The ends of the first half-pipe 91 and the second half-pipe 92 are provided with plugs. The first half-pipe 91 and the second half-pipe 92 can be freely provided with plugs at one end or both ends to avoid leakage of the internal heat-conducting filler.

[0029] In summary, the wire weighing machine valve platform provided in this application, during use, electrically connects the temperature sensor 17, the second temperature controller 14, and the chiller 10 to the control system of the weighing machine. When the wire weighing machine performs a weighing operation, hydraulic oil enters the hydraulic valve block 2 along the oil inlet pipe 7. Since the valve body has a 10mm diameter, and the hydraulic oil enters the hydraulic valve block 2, it can gradually enter the double one-way throttle valve 3, the double hydraulic control one-way valve 4, the stacked pressure reducing valve 5, and the two-way solenoid directional valve 6, reducing the flow rate of the hydraulic oil and reducing the impact force of the hydraulic oil on the valve body, thus avoiding damage to the various structures of the valve body. At the same time, the temperature sensor 17 monitors the hydraulic valve block... 2. The internal hydraulic oil temperature is detected, and the detection data is fed back to the weighing machine's control system. Based on the temperature feedback, the weighing machine control system controls the first temperature controller 13 and the second temperature controller 14 to control the heating wire 95 in the second temperature regulating mechanism 15 and the first temperature regulating mechanism 9, respectively, to raise the temperature of the hydraulic oil in the oil inlet pipe 7 and the oil outlet pipe 8, or controls the chiller 10 to inject cooling water into the cooling pipe 94 along the water inlet main pipe 11 and the water return main pipe 12 to lower the temperature of the hydraulic oil in the oil inlet pipe 7 and the oil outlet pipe 8, so that the hydraulic oil is always at a suitable temperature and avoids the hydraulic oil temperature affecting the weighing accuracy.

[0030] In the description of this invention, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing the invention and for simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the invention. The terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance. Furthermore, unless otherwise explicitly specified and limited, the terms "installed," "connected," and "linked" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances. Moreover, the terms “comprising,” “including,” or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0031] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A valve platform for a wire weighing machine, comprising a mounting frame (1), characterized in that: A hydraulic valve block (2) is fixedly installed on the top of the mounting frame (1), and a double one-way throttle valve (3), a double hydraulic control one-way valve (4), a stacked pressure reducing valve (5), and a two-way solenoid directional valve (6) are provided on the top of the hydraulic valve block (2). The double one-way throttle valve (3), the double hydraulic control one-way valve (4), the stacked pressure reducing valve (5), and the two-way solenoid directional valve (6) are sequentially fixedly installed on the top of the hydraulic valve block (2), and the interfaces between each valve body correspond to each other and are sealed. A pressure sensor (16) and a temperature sensor (17) are fixedly connected to the side of the hydraulic valve block (2). An oil inlet pipe (7) is fixedly connected to the front of the hydraulic valve block (2), and a first temperature regulating mechanism (9) is provided on the oil inlet pipe (7). An oil outlet pipe (8) is fixedly connected to the side of the hydraulic valve block (2) away from the pressure sensor (16), and a second temperature regulating mechanism (15) is provided on the oil outlet pipe (8). (9) The first temperature regulating mechanism (9) has the same structure as the second temperature regulating mechanism (15). The first temperature regulating mechanism (9) includes a first half-tube (91) and a second half-tube (92). The first half-tube (91) and the second half-tube (92) are provided with a cooling pipe (94) and a heating wire (95). The mounting frame (1) is fixedly installed with a chiller (10), a first temperature controller (13), and a second temperature controller (14) that cooperate with the first temperature regulating mechanism (9) and the second temperature regulating mechanism (15). The first temperature controller (13) is located below the second temperature regulating mechanism (15) and is electrically connected to the heating wire (95) in the second temperature regulating mechanism (15). The second temperature controller (14) is located below the first temperature regulating mechanism (9) and is electrically connected to the heating wire (95) in the first temperature regulating mechanism (9).

2. The valve platform of a wire weighing machine according to claim 1, characterized in that: The first half-tube (91) and the second half-tube (92) are both hollow semi-cylindrical structures. Both the first half-tube (91) and the second half-tube (92) are provided with flanges. The flange of the first half-tube (91) is fitted with a locking screw (93), and the locking screw (93) can be threadedly connected to the second half-tube (92).

3. The valve platform of a wire weighing machine according to claim 1, characterized in that: The water chiller (10) has an inlet main pipe (11) fixedly connected to its outlet and a return main pipe (12) fixedly connected to its outlet. The inlet main pipe (11) is fixedly connected to one end of the cooling pipe (94) in the first temperature regulating mechanism (9) and the second temperature regulating mechanism (15). The return main pipe (12) is fixedly connected to the other end of the cooling pipe (94) in the first temperature regulating mechanism (9) and the second temperature regulating mechanism (15).

4. The valve platform of a wire weighing machine according to claim 1, characterized in that: The cooling pipe (94) and heating wire (95) are spirally wound around the outside of the oil inlet pipe (7) or oil outlet pipe (8), and the cooling pipe (94) and heating wire (95) are distributed in a double spiral.

5. The valve platform of a wire weighing machine according to claim 1, characterized in that: The first half-tube (91) and the second half-tube (92) are filled with thermally conductive filler, and the ends of the first half-tube (91) and the second half-tube (92) are provided with sealing heads.

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