A weighing trolley for centrifuge tubes

Abstract

The utility model relates to centrifugal cast iron pipe weighing technical field, especially to a kind of weighing trolley for centrifuge pipe, including the weighing trolley body that can move on slide rail, weighing trolley body is set on the pipe puller of centrifuge one end top, weighing module is provided on weighing trolley, positioning member is provided on weighing module, positioning member is used to support pipe fitting, the cross section of positioning member is V-shaped structure, positioning member both sides are provided with guide, guide is inclined to extend from the side wall of weighing trolley body to positioning member, guide is used to guide pipe fitting to the V-shaped groove of positioning member, the utility model provides a kind of weighing trolley for centrifuge pipe, to solve the technical problem that the cycle is long when single pipe weighing of existing centrifuge pipe, and production is low, production rhythm is slow.

Description

Technical Field

[0001] This utility model relates to the field of centrifugal ductile iron pipe weighing technology, specifically to a weighing trolley for centrifuge pipes. Background Technology

[0002] In the centrifugal ductile iron pipe production process, the cast iron pipes need to be weighed immediately after being pulled out by the centrifuge to ensure the quality of the cast iron pipes. That is, the weight of the cast iron pipes must be within the normal production range to avoid increased costs due to overweight cast iron pipes, and to avoid underweight cast iron pipes that fail to meet production requirements.

[0003] In the prior art, the weighing of cast iron pipes is usually carried out by a pipe pulling machine in conjunction with a weighing device. For example, an existing patent (publication number CN110548850B) discloses a water-cooled centrifugal pipe casting machine for processing ductile iron pipes. The casting needs to be pulled out by the pipe pulling machine and then transferred to the weighing device step by step through a special pipe connecting mechanism and pipe transferring mechanism. This not only prolongs the weighing cycle of a single cast iron pipe, but also causes a decrease in output and affects the production rhythm. Utility Model Content

[0004] In view of this, the present invention provides a weighing trolley for centrifuge tubes, which aims to solve the technical problems of long cycle time, low output and slow production pace when weighing single centrifuge tubes.

[0005] To solve the above-mentioned technical problems, this utility model provides a weighing trolley for centrifuge tubes, including a weighing trolley body that can move on a slide rail. The weighing trolley body is positioned above a tube-extracting machine at one end of the centrifuge. A weighing module is provided on the weighing trolley body, and a positioning component is provided on the weighing module. The positioning component is used to support the tube. The cross-section of the positioning component is a V-shaped structure. Guide components are provided on both sides of the positioning component. The guide components extend obliquely from the side wall of the weighing trolley body toward the positioning component. The guide components are used to guide the tube into the V-shaped groove of the positioning component.

[0006] Furthermore, the cross-section of the positioning member is a U-shaped structure with both ends inclined in opposite directions, and the opening of the positioning member is set towards the side away from the bottom surface of the weighing trolley body.

[0007] Furthermore, the guide member is a flat plate structure, with its lower end connected to the side of the positioning member and its higher end connected to the side wall of the weighing trolley body.

[0008] Furthermore, at least one set of fixing components is provided on the guide member along the travel path of the weighing trolley body, and the fixing components are used to prevent the pipes on the positioning member from shaking.

[0009] Furthermore, the fixing component includes a mounting groove on the guide member, a fixing rod is provided at one end of the mounting groove near the positioning member, and a clamping member is rotatably connected to the fixing rod.

[0010] Furthermore, the clamping element is configured with an arc-shaped structure for quick clamping of the pipe fitting.

[0011] Furthermore, an elastic pad is provided on the arc-shaped inner wall of the clamping member.

[0012] Furthermore, a pressure plate extends from the upper part of the clamping member near the fixing rod, and the pressure plate is inclined downward toward the center line of the bottom surface of the weighing trolley body.

[0013] Furthermore, multiple reinforcing frames are provided between the guide member and the bottom surface of the weighing trolley body.

[0014] Furthermore, a digital display control table is installed on the side wall of the weighing trolley body, and the digital display control table is electrically connected to the weighing module for displaying weighing data.

[0015] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0016] When in use, the centrifuge tube weighing trolley of this utility model uses a V-shaped positioning plate on the trolley body and a weighing module to weigh the cast iron tube, guiding it to be quickly positioned on the V-shaped positioning plate. This allows the cast iron tube to be quickly and stably placed on the weighing trolley body, thus shortening the weighing cycle of a single cast iron tube, avoiding disruption to the production rhythm due to the transfer process, and thereby increasing output. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the overall structure of this utility model; Figure 2 This is a schematic diagram of the positioning and guiding components of this utility model; Figure 3 This is a schematic diagram of the weighing trolley and some of its parts according to the present invention. Figure 4 This is a schematic diagram of the fixing component structure of this utility model.

[0018] In the diagram: 101, Weighing trolley body; 102, Weighing module; 103, Positioning component; 104, Guide component; 201. Mounting slot; 202. Fixing rod; 203. Clamping component; 301. Elastic pad; 302. Pressure plate; 401. Reinforced frame; 501. Digital display control table; 502. Alarm module. Detailed Implementation

[0019] It should be understood that the specific embodiments described herein are merely illustrative of the present invention and are not intended to limit the present invention.

[0020] In the description of this utility model, it should be understood that the terms "width", "upper", "lower", "front", "rear", "top", "bottom", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and 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 this utility model.

[0021] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "setting" 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, a direct connection, or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0022] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through other features. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0023] Please refer to Figures 1-4 This utility model provides a weighing trolley for centrifuge tubes, including a weighing trolley body 101 that can move on a slide rail. The slide rail is used to install the weighing trolley body 101 above the tube puller at one end of the centrifuge. The weighing trolley body 101 is connected to a drive device, which drives the weighing trolley body 101 to move along the track of the slide rail. The drive mechanism adopts existing technology, such as gears meshing with a rack next to the slide rail.

[0024] In this embodiment, refer to Figure 1 and Figure 3A weighing module 102 is bolted to the center of the bottom surface of the inner wall of the weighing trolley body 101. A positioning component 103 is connected above and close to the weighing module 102. The positioning component 103 is used to support the pipe. The positioning component 103 can be elastically deformed so that when the pipe falls onto the positioning component 103, it can be pressed down by gravity, so that the weighing module 102 can weigh the pipe. In this embodiment, the weighing module 102 adopts a high-precision pressure sensor, which can meet the weighing requirements of cast iron pipes of different diameters.

[0025] Reference Figure 1 and Figure 3 A digital display control meter 501 is bolted to the side wall of the weighing trolley body 101. The digital display control meter 501 is electrically connected to the weighing module 102 and is used to display weighing data. In this embodiment, the digital display control meter 501 is also connected to the alarm module 502 through a control line. An alarm will be triggered when the weight is below or above the quality requirements of the pipe fitting, so that the staff can take action.

[0026] Reference Figure 1 and Figure 2 The positioning component 103 has a V-shaped cross-section, which allows it to support pipes of different specifications.

[0027] Preferably, when the cross-section of the positioning member 103 adopts a U-shaped structure with both ends inclined in opposite directions, the range of pipe diameters that can be supported can be expanded within a limited space. Specifically, the plane at the bottom of the U-shaped structure can expand the distance between its two inclined plates, allowing for support of pipes of different diameters within a limited area inside the weighing trolley body 101, thus improving the applicability of the positioning member 103 when fixing pipes. The opening of the positioning member 103 is set towards the side away from the bottom surface of the weighing trolley body 101, so that it can directly receive the cast iron pipe pulled out by the pipe pulling machine.

[0028] After the positioning component 103 catches the cast iron pipe through the U-shaped structure, it can directly guide the cast iron pipe, allowing it to fall smoothly into the U-shaped groove. This further prevents the cast iron pipe from wobbling from side to side after falling onto the positioning plate, which would lead to inaccurate mass measurements. Specifically, because factories have production capacity requirements, they cannot wait for the cast iron pipe to stabilize automatically. Therefore, the U-shaped or V-shaped structure can quickly stabilize the cast iron pipe, increasing production output and improving production efficiency.

[0029] Reference Figure 1 and Figure 2 Both sides of the positioning component 103 are fixedly connected to guide components 104. The guide components 104 extend obliquely from the side wall of the weighing trolley body 101 toward the positioning component 103. The guide components 104 are used to guide the pipe into the V-shaped groove or U-shaped groove of the positioning component 103.

[0030] Reference Figure 2 The guide 104 is a flat plate structure. The lower end of the guide 104 is fixedly connected to the side of the positioning member 103, and the higher end of the positioning member 103 is connected to the side wall of the weighing trolley body 101. Specifically, when the cast iron pipe pulled out by the pipe pulling machine is slightly off-center, it will fall onto the guide 104. Under the guiding action of the inclined guide 104, the cast iron pipe is quickly guided to the positioning plate, avoiding the impact on production rate due to inaccurate falling position.

[0031] Reference Figure 1 and Figure 4 At least one set of fixing components is provided on the guide member 104 along the travel path of the weighing trolley. In this embodiment, the fixing components on the two guide members 104 are symmetrically arranged. The fixing components are used to prevent the pipe on the positioning member 103 from shaking.

[0032] Reference Figure 1 and Figure 4 The fixing component includes an installation groove 201 on the guide 104. A positioning rod is fixedly connected to one end of the installation groove 201 near the positioning member 103. A clamping member 203 is rotatably connected to the fixing rod 202 via a bearing. When the cast iron pipe falls onto the positioning plate or guide plate, the outer wall of the cast iron pipe will press against the end of the clamping member 203 near the positioning rod, thereby causing the clamping member 203 to move away from the positioning plate and lift upward, clamping the cast iron pipe. This further suppresses the shaking of the cast iron pipe and uses the weight of the cast iron pipe itself to drive the clamping member 203 to clamp it. It can also prevent the cast iron pipe from falling during the movement of the weighing trolley body 101.

[0033] Specifically, in this embodiment, the clamping member 203 has an arc-shaped structure, which is used to quickly clamp the pipe through its arc-shaped surface. The arc-shaped surface can adapt to the outer wall surface of the cast iron pipe, preventing the cast iron pipe from jumping due to vibration during the movement of the weighing trolley body 101. In other embodiments, the clamping member 203 can use a flat plate structure, which can also clamp and position the cast iron pipe. Therefore, the positioning effect of the cast iron pipe can be improved. An elastic pad 301 is provided on the arc-shaped inner wall of the clamping member 203. The elastic deformation of the elastic pad 301 can adapt to cast iron pipes of different diameters and can avoid damage to the outer wall surface of the cast iron pipe due to friction.

[0034] Specifically, a pressure plate 302 extends from the upper part of the clamping member 203 near the fixed rod 202. The end of the pressure plate 302 away from the bottom surface of the weighing trolley body 101 is inclined downward towards the center line of the bottom surface of the weighing trolley body 101. When the pipe slides into the positioning member 103 along the guide member 104 or falls directly onto the positioning member 103, it will first contact the pressure plate 302 and push the clamping member 203 to rotate inward, automatically clamping the pipe. When the pipe needs to be removed, it is only necessary to lift the pipe, and the clamping member 203 will automatically release.

[0035] Reference Figure 3 Multiple reinforcing frames 401 are fixedly connected between the guide component 104 and the bottom surface of the weighing trolley body 101 to prevent the guide component 104 from being crushed by the excessive weight of the cast iron pipe.

[0036] In summary, when the drive device is activated, the weighing trolley body 101 moves along the slide rail to directly above the tube puller at one end of the centrifuge, placing it in a position where it can accurately receive the pulled-out tubes. The upper part of the weighing trolley body 101 is close to the tubes to avoid inaccurate weighing by the weighing module 102 due to the acceleration of the falling tubes. After the tube puller pulls out the tubes, the tubes fall. If the falling position of the tubes is slightly off, they will first fall onto the guide 104. Under the guiding action of the guide 104 extending inclinedly from the side wall of the weighing trolley body 101 towards the positioning 103, the tubes will smoothly slide into the V-shaped groove or U-shaped groove of the positioning 103.

[0037] When the positioning component 103 supports the pipe fitting, the weight of the pipe fitting presses down on the elastically deformable positioning component 103, and the weighing module 102 begins to weigh the pipe fitting. The digital display control table 501 displays the weighing data in real time. At the same time, the pipe fitting contacts the pressure plate 302 of the fixing component, pushing the clamping component 203 to rotate inward around the fixing rod 202. The arc-shaped clamping component 203, together with the elastic pad 301, automatically clamps and fixes the pipe fitting to prevent it from shaking during the weighing process. The staff observes the weighing data on the digital display control table 501. If the data is within the pipe fitting quality requirements, the subsequent operation can proceed normally; if the data exceeds the range, the alarm module 502 will issue an alarm, and the staff needs to deal with the pipe fitting in a timely manner.

[0038] After weighing is completed, start the drive device to move the weighing trolley body 101 along the slide rail to the designated position to prepare to unload the pipe fitting; lift the pipe fitting, at which time the clamp 203 will automatically release, and the pipe fitting can be removed from the positioning member 103.

[0039] Furthermore, it should be noted that, in the description of this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" 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 utility model according to the specific circumstances.

[0040] The above description is the preferred embodiment of this utility model. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the principle of this utility model, and these improvements and modifications should also be considered within the protection scope of this utility model.

Claims

1. A weighing trolley for centrifuge tubes, comprising a weighing trolley body movable on a slide rail, the weighing trolley body being disposed above a tube-extracting machine at one end of the centrifuge, characterized in that: The weighing trolley is equipped with a weighing module, and the weighing module is equipped with a positioning component. The positioning component is used to support the tube component. The cross-section of the positioning component is a V-shaped structure. Guide components are provided on both sides of the positioning component. The guide components extend obliquely from the side wall of the weighing trolley body towards the positioning component. The guide components are used to guide the tube component into the V-shaped groove of the positioning component.

2. The balance car for centrifuge tubes as claimed in claim 1, characterized in that: The positioning component has a U-shaped cross-section with both ends inclined in opposite directions, and the opening of the positioning component is oriented towards the side away from the bottom surface of the weighing trolley body.

3. The balance car for centrifuge tubes as claimed in claim 2, characterized in that: The guide is a flat plate structure. The lower end of the guide is connected to the side of the positioning member, and the higher end of the positioning member is connected to the side wall of the weighing trolley body.

4. The balance car for centrifuge tubes as claimed in claim 3, characterized in that: At least one set of fixing components is provided on the guide member along the travel path of the weighing trolley body, and the fixing components are used to prevent the pipes on the positioning member from shaking.

5. The balance car for centrifuge tubes as claimed in claim 4, characterized in that: The fixing component includes a mounting groove on the guide member, a fixing rod is provided at one end of the mounting groove near the positioning member, and a clamping member is rotatably connected to the fixing rod.

6. The centrifuge tube weighing trolley as described in claim 5, characterized in that: The clamping element is designed with an arc shape for quick clamping of the pipe fitting.

7. The balance car for centrifuge tubes as claimed in claim 5, characterized in that: An elastic pad is provided on the arc-shaped inner wall of the clamping member.

8. The balance car for centrifuge tubes as claimed in claim 5, characterized in that: The clamping member has a pressure plate extending from the upper part near the fixing rod, and the pressure plate is inclined downward toward the center line of the bottom surface of the weighing trolley body.

9. The centrifuge tube weighing trolley as described in claim 3, characterized in that: Multiple reinforcing frames are provided between the guide component and the bottom surface of the weighing trolley body.

10. The balance car for centrifuge tubes of claim 1, wherein: A digital display control table is installed on the side wall of the weighing trolley body. The digital display control table is electrically connected to the weighing module and is used to display weighing data.

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