Lofting device for detecting melting point and melting speed of casting powder

Abstract

The utility model relates to the technical field of melting point and melting speed detection tools, in particular to a lofting device for detecting the melting point and melting speed of casting powder, which comprises tweezers, the tweezers comprise two tweezers handles, each tweezers handle comprises a top fixing and closing part and an inclined fork rod, the upper ends of the two inclined fork rods are close to each other and are connected to the lower end of the top fixing and closing part, and the inclined fork rods are connected with the tweezers handles. Two inclined fork rods are arranged on the forceps handle, the lower ends of the two inclined fork rods are far away from each other to form an opening, flat rod parts are arranged at the lower ends of the two inclined fork rods, and a first blocking piece and a second blocking piece are connected to the inner side walls of the two flat rod parts of each forceps handle respectively. According to the corundum piece clamping device, the corundum pieces are clamped, so that the corundum pieces are more stably clamped, the corundum pieces are prevented from rolling over or falling off, the corundum pieces are uniformly stressed, the phenomenon that samples are inclined or roll off due to vibration generated at the falling moment is avoided, the corundum piece clamping device is convenient to use and high in working efficiency, and the smooth proceeding of subsequent detection is ensured.

Description

Technical Field

[0001] The utility model relates to the technical field of melting point and melting rate detection tools, in particular to a layout device for detecting the melting point and melting rate of protective slag. Background Art

[0002] The sample for melting point and melting rate detection is a cylinder with a height of 3mm×Φ2.5mm, standing on a 16×10mm corundum sheet. When in use, the corundum sheet on which the sample is placed is clamped with tweezers and placed on a special corundum tube with a temperature sensor, and the equipment automatically sends it into the high-temperature furnace for detection.

[0003] In the process of using tweezers to clamp the corundum sheet and place it on the special corundum tube, there is a problem of frequent sample rolling off. The tips of ordinary tweezers are thinner, and the corundum sheet on which the sample is placed is also thinner, 1mm thick. Therefore, if the force is too light when clamping the corundum sheet, it is easy to cause the corundum sheet to slip, and if the force is too large, the corundum sheet is easy to roll over. Both situations will cause the sample to roll off and become invalid. After ensuring that there are no mistakes in the process of clamping the corundum sheet and sending the sample to the corundum tube, the test requirements must also be met, and the sample must be placed as quickly and smoothly as possible. Because the furnace body will be opened after each sample is tested, and then the next sample will be placed. In this sample replacement process, in order to ensure that the furnace body temperature cannot drop below the required temperature, the placement must be fast, but because it is manual placement, it is easy to cause hand shaking and instability during the fast placement process. The sample may roll off and be scrapped. The sample may also roll off due to other reasons such as the wind force generated by moving too fast, which may cause the light sample to fall off. Because the tip of the tweezers is thinner and the corundum sheet on which the sample is placed is also thinner, the contact area between the two is smaller during the process of clamping the corundum sheet. When the sample is successfully placed on the corundum tube and the tweezers are released, the force point is single at the moment of release. Some parts of the corundum sheet are already placed on the corundum tube, while some parts have not yet touched the corundum tube, and are in a suspended state. However, this part of the suspension is very slight. However, it is this very slight suspended state that causes the entire corundum sheet to be unable to fall smoothly, and there will be a certain amount of vibration or skew, causing the sample to deviate from the center position or roll off and be scrapped. The above situations will delay the operation time and affect the test. Utility Model Content

[0004] The utility model aims to provide a sample placing device for detecting the melting point and melting rate of protective slag, so as to ensure that the sample feeding process is smoother and faster, avoid sample rolling, improve the success rate of sample placing, make the subsequent detection process proceed smoothly, improve work efficiency, and avoid repeated sampling due to sample loss.

[0005] To achieve the above-mentioned technical effect, the utility model provides a layout device for detecting the melting point and melting rate of protective slag, which includes tweezers. The tweezers include two tweezer handles. The upper ends of the two tweezer handles are fixedly connected, and the lower ends of the two tweezer handles are openings. Each of the tweezer handles includes a top fixing portion and an oblique fork rod. Two oblique fork rods are provided, and the upper ends of the two oblique fork rods are close to and connected to the lower end of the top fixing portion, and the lower ends of the two oblique fork rods are far away from each other to form an opening. The two oblique fork rods form an inverted "V" shape, and the lower ends of the two oblique fork rods are provided with a flat rod portion. The top fixing portions of the two tweezer handles are fixedly connected, and the flat rod portions of the two tweezer handles are parallel to each other. The inner side walls of the two flat rod portions of each tweezer handle are respectively connected with a first baffle and a second baffle, and the first baffle and the second baffle are parallel to each other.

[0006] Furthermore, the two flat rod parts of each tweezers handle are provided with connecting holes, the first baffle is provided with two connecting columns I, the two connecting columns I are inserted into the two connecting holes, the second baffle is provided with two connecting columns II, the two connecting columns II are inserted into the two connecting holes, and the two connecting columns I are coaxial with the two connecting columns II.

[0007] Furthermore, the spacing between the two connecting holes on each tweezers handle is L1, a plurality of connecting columns I are linearly evenly distributed on the first baffle, and the spacing between each connecting column I in the plurality of connecting columns I is L2, a plurality of connecting columns II are linearly evenly distributed on the second baffle, and the spacing between each connecting column I in the plurality of connecting columns II is L2, L1=2×L2, and the plurality of connecting columns I are coaxial with the plurality of connecting columns II.

[0008] Furthermore, a slide groove I is provided at the end of the first baffle, and a slide groove II is provided at the end of the second baffle. The slide groove I is coaxial with the slide groove II. Both the slide groove I and the slide groove II are rectangular grooves. A third baffle is inserted into the slide groove I and the slide groove II, and the two ends of the third baffle extend out of the slide groove I and the slide groove II respectively.

[0009] Furthermore, screw holes are provided on both ends of the third baffle extending out of the slide slot I and the slide slot II, and a limiting screw is connected in each screw hole.

[0010] Furthermore, the two oblique fork rods of each tweezers handle are fixedly connected to the connecting rod, and along the length direction of the oblique fork rod, the connecting rod is connected to the middle part of the oblique fork rod, and the two oblique fork rods of each tweezers handle and the connecting rod form an "A" shape.

[0011] The beneficial effects of the utility model are as follows: the utility model comprises tweezers, the tweezers comprise two tweezer handles, each tweezer handle comprises a top fixing part and an oblique fork rod, two oblique fork rods are provided, the upper ends of the two oblique fork rods are close to and connected to the lower end of the top fixing part, the lower ends of the two oblique fork rods are far away from each other to form an opening, the two oblique fork rods form an inverted "V" shape, the lower ends of the two oblique fork rods are provided with flat rod parts, the inner side walls of the two flat rod parts of each tweezer handle are respectively connected with a first baffle and a second baffle, the first baffle and the second baffle are parallel to each other, the utility model clamps the corundum sheet by the first baffle and the second baffle, increases the contact area with the jade sheet, thereby pinching the corundum sheet more stably, thereby preventing the corundum sheet from tipping over or falling. The phenomenon of sample rolling off is prevented, and the rolling off caused by inertia or wind force during movement is prevented. After being moved to the placement position, the corundum sheet is subjected to uniform force, so after releasing the tweezers, the corundum sheet with the sample can fall completely on the special corundum tube, and there will be no part that has fallen off and part that is still suspended in the air, thus avoiding the phenomenon of sample tilting or rolling off caused by the vibration at the moment of falling. The third baffle, the first baffle and the second baffle together wrap the corundum sheet in three directions, further improving the clamping stability of the corundum sheet. At the same time, the third baffle, the first baffle and the second baffle make the force uniform when clamping the corundum sheet, and the corundum sheet falls steadily when the force is unloaded and put down. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 It is a schematic diagram of the structure of the utility model;

[0013] Figure 2 For this utility model Figure 1 A-direction view;

[0014] Figure 3 For this utility model Figure 1 BB cross-sectional view;

[0015] Figure 4 This is a schematic diagram of the structure of the tweezers handle of the utility model;

[0016] Figure 5 This is a schematic structural diagram of the first baffle of the utility model;

[0017] Figure 6 It is a structural schematic diagram of the second baffle of the utility model.

[0018] In the figure: 1. tweezers; 101. tweezers handle; 1011. top fixing part; 1012. oblique fork rod; 1013. flat rod part; 1014. connecting rod; 1015. connecting hole; 2. first baffle; 201. connecting column I; 202. slide groove I; 3. second baffle; 301. connecting column II; 302. slide groove II; 4. third baffle; 401. screw hole; 5. limit screw. DETAILED DESCRIPTION

[0019] like Figure 1-Figure 6 As shown, the utility model is a layout device for detecting the melting point and melting rate of protective slag, which includes tweezers 1. The tweezers 1 include two tweezer handles 101. The upper ends of the two tweezer handles 101 are fixedly connected, and the lower ends of the two tweezer handles 101 are open. Each of the tweezer handles 101 includes a top fixing portion 1011 and an inclined fork rod 1012. There are two inclined fork rods 1012. The upper ends of the two inclined fork rods 1012 are close to and connected to the lower end of the top fixing portion 1011. The lower ends of the two inclined fork rods 1012 are far away from each other to form an opening. The two inclined fork rods 1012 form an inverted "V" shape. The lower ends of the two inclined fork rods 1012 are provided with a flat rod portion 1 013, the top fixing parts 1011 of the two tweezers handles 101 are fixedly connected, the flat rod parts 1013 of the two tweezers handles 101 are parallel to each other, the two oblique fork rods 1012 of each tweezers handle 101 are fixedly connected to the connecting rod 1014, along the length direction of the oblique fork rod 1012, the connecting rod 1014 is connected to the middle part of the oblique fork rod 1012, the two oblique fork rods 1012 of each tweezers handle 101 and the connecting rod 1014 form an "A" shape, the inner side walls of the two flat rod parts 1013 of each tweezers handle 101 are respectively connected with the first baffle 2 and the second baffle 3, the first baffle 2 and the second baffle 3 are parallel to each other,

[0020] The corundum sheet is clamped by the first baffle 2 and the second baffle 3, which increases the contact area with the sheet, so that the corundum sheet can be pinched more stably, thereby avoiding the phenomenon of the corundum sheet tipping over or falling and causing the sample to roll off, and also preventing the rolling phenomenon caused by inertia or wind during movement. After moving to the placement position, the corundum sheet is evenly stressed, so after releasing the tweezers 1, the corundum sheet with the sample can fall completely on the special corundum tube, and there will no longer be a state where part of the sheet has fallen and part is still suspended in the air, thereby avoiding the vibration at the moment of falling and causing the sample to tilt or roll off, and the setting of the two oblique fork rods 1012 in each tweezers handle 101 further ensures the connection stability and force stability between the tweezers handle 101 and the first baffle 2 and the second baffle 3, and the setting of the connecting rod 1014 ensures the connection stability between the two oblique fork rods 1012.

[0021] The two flat rod portions 1013 of each tweezers handle 101 are provided with connecting holes 1015, the first baffle 2 is provided with two connecting columns I201, the two connecting columns I201 are inserted into the two connecting holes 1015, the second baffle 3 is provided with two connecting columns II301, the two connecting columns II301 are inserted into the two connecting holes 1015, and the two connecting columns I201 are coaxial with the two connecting columns II301 one by one.

[0022] The spacing between the two connecting holes 1015 on each tweezers handle 101 is L1, a plurality of connecting columns Ⅰ201 are linearly evenly distributed on the first baffle 2, and the spacing between each connecting column Ⅰ201 in the plurality of connecting columns Ⅰ201 is L2, a plurality of connecting columns Ⅱ301 are linearly evenly distributed on the second baffle 3, and the spacing between each connecting column Ⅰ201 in the plurality of connecting columns Ⅱ301 is L2, L1=2×L2, and the plurality of connecting columns Ⅰ201 are coaxial with the plurality of connecting columns Ⅱ301 one by one.

[0023] The utility model realizes the connection between the tweezers handle 101 and the first baffle 2 and the second baffle 3 by plugging the connecting hole 1015 and the connecting column I201 and the connecting column II301, which is convenient to use and to replace the first baffle 2 and the second baffle 3. The provision of multiple connecting columns I201 and multiple connecting columns II301 improves the connection flexibility of the utility model. The connection position between the tweezers handle 101 and the first baffle 2 and the second baffle 3 can be replaced according to the length of the corundum sheet and the different positions of the corundum sheet clamped, thereby ensuring the clamping stability of the tweezers handle 101 on the first baffle 2, the second baffle 3 and the corundum sheet. L1=2×L2, that is, the distance between the two connecting holes 1015 is twice the distance between the two connecting columns Ⅰ201 and the distance between the two connecting columns Ⅱ301. When in use, the two connecting holes 1015 are plugged into the two connecting columns Ⅰ201 and the two connecting columns Ⅱ301 with a distance of two L2. At this time, there is still an unconnected connecting column Ⅰ201 or connecting column Ⅱ301 between the two connecting holes 1015, but it does not affect the use.

[0024] The first baffle 2 is provided with a slide groove Ⅰ202 at the end, and the second baffle 3 is provided with a slide groove Ⅱ302 at the end. The slide groove Ⅰ202 is coaxial with the slide groove Ⅱ302. The slide groove Ⅰ202 and the slide groove Ⅱ302 are both rectangular grooves. The third baffle 4 is inserted into the slide groove Ⅰ202 and the slide groove Ⅱ302. The two ends of the third baffle 4 extend out of the slide groove Ⅰ202 and the slide groove Ⅱ302 respectively. Screw holes 401 are provided on the two ends of the third baffle 4 extending out of the slide groove Ⅰ202 and the slide groove Ⅱ302, and a limiting screw 5 is connected in each screw hole 401.

[0025] The third baffle 4, the first baffle 2 and the second baffle 3 cooperate to wrap the corundum sheet in three directions, further improving the clamping stability of the corundum sheet, and the corundum sheet extends out from the end where the third baffle 4 is not set, which does not affect the use. The two ends of the third baffle 4 extend out of the slide groove Ⅰ202 and the slide groove Ⅱ302 respectively, so that the third baffle 4 can be suitable for different clamping thicknesses. The setting of two limit screws 5 prevents the third baffle 4 from falling off from the slide groove Ⅰ202 or the slide groove Ⅱ302. It should be noted that since the movement trajectories of the first baffle 2 and the second baffle 3 are in the horizontal and vertical directions when operating the tweezers 1, when setting the slide groove Ⅰ202 and the slide groove Ⅱ302, the width of the slide groove Ⅰ202 and the slide groove Ⅱ302 should be greater than the width of the third baffle 4, thereby preventing the third baffle 4 from getting stuck with the slide groove Ⅰ202 or the slide groove Ⅱ302 when the first baffle 2 and the second baffle 3 move.

Claims

1. A layout device for detecting the melting point and melting rate of protective slag, comprising tweezers (1), wherein the tweezers (1) comprise two tweezer handles (101), wherein the upper ends of the two tweezer handles (101) are fixedly connected, and the lower ends of the two tweezer handles (101) are open, and wherein: Each of the tweezers handles (101) comprises a top fixing portion (1011) and an oblique fork rod (1012), two oblique fork rods (1012) are provided, the upper ends of the two oblique fork rods (1012) are close to and connected to the lower end of the top fixing portion (1011), the lower ends of the two oblique fork rods (1012) are separated to form an opening, the two oblique fork rods (1012) form an inverted "V" shape, the lower ends of the two oblique fork rods (1012) are provided with a flat rod portion (1013), the top fixing portions (1011) of the two tweezers handles (101) are fixedly connected, the flat rod portions (1013) of the two tweezers handles (101) are parallel to each other, the inner side walls of the two flat rod portions (1013) of each tweezers handle (101) are respectively connected to a first baffle (2) and a second baffle (3), and the first baffle (2) and the second baffle (3) are parallel to each other.

2. A layout device for detecting the melting point and melting rate of protective slag according to claim 1, characterized in that: The two flat rod portions (1013) of each tweezers handle (101) are provided with connecting holes (1015); the first baffle (2) is provided with two connecting columns I (201), and the two connecting columns I (201) are inserted into the two connecting holes (1015); the second baffle (3) is provided with two connecting columns II (301), and the two connecting columns II (301) are inserted into the two connecting holes (1015); the two connecting columns I (201) are coaxial with the two connecting columns II (301).

3. A layout device for detecting the melting point and melting rate of protective slag according to claim 2, characterized in that: The distance between the two connecting holes (1015) on each tweezer handle (101) is L1, a plurality of connecting pillars I (201) are evenly distributed linearly on the first baffle (2), and the distance between each connecting pillar I (201) in the plurality of connecting pillars I (201) is L2, a plurality of connecting pillars II (301) are evenly distributed linearly on the second baffle (3), and the distance between each connecting pillar I (201) in the plurality of connecting pillars II (301) is L2, L1=2×L2, and the plurality of connecting pillars I (201) are coaxial with the plurality of connecting pillars II (301).

4. A layout device for detecting the melting point and melting rate of protective slag according to any one of claims 2 or 3, characterized in that: The first baffle (2) is provided with a slide groove I (202) at the end, and the second baffle (3) is provided with a slide groove II (302) at the end. The slide groove I (202) and the slide groove II (302) are coaxial. The slide groove I (202) and the slide groove II (302) are both rectangular grooves. The third baffle (4) is inserted into the slide groove I (202) and the slide groove II (302). The two ends of the third baffle (4) extend out of the slide groove I (202) and the slide groove II (302) respectively.

5. A layout device for detecting the melting point and melting rate of protective slag according to claim 4, characterized in that: Screw holes (401) are provided on both ends of the third baffle (4) extending out of the slide groove I (202) and the slide groove II (302), and a limiting screw (5) is connected to each screw hole (401).

6. A layout device for detecting the melting point and melting rate of mold slag according to any one of claims 1, 2, 3 or 5, characterized in that: The two oblique fork rods (1012) of each tweezers handle (101) are fixedly connected to a connecting rod (1014); along the length direction of the oblique fork rod (1012), the connecting rod (1014) is connected to the middle of the oblique fork rod (1012); the two oblique fork rods (1012) of each tweezers handle (101) and the connecting rod (1014) form an "A" shape.

Images