Automatic test sorting machine for NTC (Negative Temperature Coefficient) resistance value

Abstract

The utility model discloses an NTC resistance value automatic test sorter, including frame and set up constant temperature oil groove inside the frame, the front surface of frame is provided with the dividing wheel and the material receiving groove relative to the right side of constant temperature oil groove, the front surface of frame is provided with the support plate relative to the bottom of the material receiving groove, and the support plate is provided with the constant temperature oil groove. Two side brackets are symmetrically fixed on the front surface of the rack relative to the two sides of the material receiving groove, and a compression type limiting structure is further arranged between the supporting plate and the material receiving groove; the NTC resistance value automatic test sorting machine in the prior art is improved and optimized, structures such as the supporting plate, the side supporting seat and the compression type limiting structure are designed, rapid and convenient disassembly and assembly of the material receiving groove can be achieved, meanwhile, the installation stability of the material receiving groove in daily use is guaranteed, and the service life of the material receiving groove is prolonged. Therefore, an operator can conveniently and quickly take down and assemble back the material receiving groove when the material receiving groove is full of materials in the later period, and the use convenience of the whole NTC resistance value automatic test sorting machine is improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of thermistor resistance value testing, and in particular relates to an NTC resistance value automatic testing and sorting machine. Background Art

[0002] NTC resistance automatic test sorting machine refers to thermistor resistance automatic test sorting machine, which can realize automatic testing in the constant temperature oil tank. The back-end can classify and collect materials with different resistance values ​​such as 1%, 2%, 3% according to the needs. The original manual tank can only manually classify and collect good and bad products, and cannot meet the needs of classifying and collecting resistance values ​​with different precisions; the constant temperature oil tank uses an insulation layer and an insulating gas to isolate the oil and air to ensure the temperature of the constant temperature oil tank, ensuring that the temperature of the constant temperature tank can be controlled more accurately at 25±0.01℃. The temperature accuracy of the original manual tank can only be controlled at 25±0.02℃, ensuring that the test resistance value is more accurate. The machine operation direction is the left magnetic tank feeding and the right 7BIN classification magnetic tank. The materials are collected separately, and a cross detection and a set of straightening devices are installed before testing to ensure that the equipment will automatically stop and the bent materials can be automatically straightened when the materials cross on the chain to prevent the scrapping and loss of materials. The test wheel is driven by the divider and immersed in the constant temperature oil in the constant temperature oil tank. During the device test, the test wheel is in a stationary state to improve the reliability of the test. There are two Kelvin tests on the test wheel to ensure the accuracy of the material test. The belt chain body adopts POM with low thermal conductivity, and the belt teeth are made of SUS304 stainless steel to reduce the energy consumption caused by the belt chain. The equipment is equipped with a Hui high-precision resistance tester with a test accuracy of one thousandth. The machine test efficiency can reach 50K / person / 12H, which is about 6 times that of manual testing.

[0003] When the NTC resistance value automatic test and sorting machine in the prior art is in use, the material receiving trough on the right is installed at the bottom of the sorting wheel, which is used to classify and collect materials with different precision resistance values ​​after sorting by the sorting wheel. When the material receiving trough is full of sorted materials, the material receiving trough needs to be removed. However, the material receiving trough of the NTC resistance value automatic test and sorting machine in the prior art is mostly fixed with bolts, which makes it difficult to quickly remove the material receiving trough in the later stage, reducing the overall convenience of use of the NTC resistance value automatic test and sorting machine. If the material receiving trough is directly hung on the bottom of the sorting wheel without bolt connection, the material receiving trough cannot be well limited during actual use, which has disadvantages. For this reason, the utility model needs to improve and optimize the existing NTC resistance value automatic test and sorting machine. Utility Model Content

[0004] The purpose of the utility model is to provide an automatic NTC resistance test sorting machine to solve the problems raised in the above background technology.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: an NTC resistance automatic test and sorting machine, comprising a frame and a constant temperature oil tank arranged on the inner side of the frame, a feeding magnetic tank is arranged on the top of the frame relative to the left side of the constant temperature oil tank, a material belt chain is connected to the frame through a plurality of bearing seats, the bottom end of the material belt chain is immersed in the inner side of the constant temperature oil tank, and a test wheel in contact with the material belt chain is arranged on the inner side of the constant temperature oil tank, a dividing wheel and a material receiving tank are arranged on the front surface of the frame relative to the right side of the constant temperature oil tank, the material receiving tank is at the bottom of the dividing wheel, a support plate is arranged on the front surface of the frame relative to the bottom of the material receiving tank, the support plate supports the material receiving tank, two side support seats are symmetrically fixed on the front surface of the frame relative to the two sides of the material receiving tank, side support blocks are fixed on the two side surfaces of the material receiving tank, a rectangular notch corresponding to the side support block is opened on the side of the side support seat, the side support block slides into the rectangular notch, and a pressing type limiting structure is also arranged between the support plate and the material receiving tank;

[0006] The clamping limiting structure includes a bottom base block fixed to the bottom surface of the support plate, a limiting pressure plate movably installed on the front surface of the bottom base block, and the top of the limiting pressure plate extends to the front surface of the material receiving trough. The clamping limiting structure also includes a rear circular groove opened inside the bottom base block, a spring and a circular end block are arranged in the rear circular groove, a cylindrical connecting rod is fixed to the front surface of the circular end block, the front end of the cylindrical connecting rod passes through the front surface of the bottom base block and is fixedly connected to the limiting pressure plate, a limiting clamping block is fixed to the top surface of the limiting pressure plate, and a limiting clamping slot corresponding to the limiting clamping block is opened on the front surface of the material receiving trough, and the limiting clamping block is embedded in the limiting clamping slot.

[0007] Preferably, one end of the spring abuts against the inner wall of the rear circular groove, and the other end of the spring abuts against the circular end block. A circular hole communicating with the rear circular groove is provided on the front surface of the base block, and the circular hole corresponds to the cylindrical connecting rod.

[0008] Preferably, a rubber pad is fixed to the side wall of the rectangular notch, and the rubber pad is at the top of the side support block, a positioning protrusion is provided on the bottom surface of the rubber pad, and a positioning groove corresponding to the positioning protrusion is opened on the top surface of the side support block, and the bottom end of the positioning protrusion is embedded in the positioning groove, the rubber pad is L-shaped, and the rubber pad and the positioning protrusion are an integrated structure.

[0009] Preferably, an operation panel and a test instrument are also provided on the top of the rack, and the operation panel is located on the left side of the test instrument.

[0010] Compared with the prior art, the beneficial effects of the utility model are as follows: the utility model improves and optimizes the NTC resistance value automatic test and sorting machine in the prior art, designs structures such as a support plate, a side support seat and a clamping limit structure, and can realize fast and convenient disassembly and assembly of the material receiving trough, while ensuring the installation stability of the material receiving trough in daily use, so as to facilitate the later operators to quickly remove and install the material receiving trough when the material receiving trough is full of materials, thereby improving the ease of use of the entire NTC resistance value automatic test and sorting machine. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Figure 1 It is a schematic diagram of the structure of the utility model;

[0012] Figure 2 For this utility model Figure 1 A partial enlarged view of the middle A area;

[0013] Figure 3 It is a side sectional view of the clamping type limiting structure of the utility model;

[0014] Figure 4 It is a cross-sectional view of the connection between the side support block and the side bracket of the utility model;

[0015] In the figure: 1. frame; 11. operation panel; 12. test instrument; 13. support plate; 14. side support seat; 141. rectangular notch; 142. rubber pad; 143. positioning protrusion; 2. feeding magnetic groove; 3. material chain; 4. constant temperature oil tank; 5. dividing and merging wheels; 6. material receiving trough; 61. side support block; 62. positioning groove; 7. clamping type limiting structure; 71. bottom base block; 72. limiting pressure plate; 73. limiting block; 74. limiting slot; 75. rear circular groove; 76. cylindrical connecting rod; 77. spring; 78. circular end block. DETAILED DESCRIPTION

[0016] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0017] Example 1

[0018] See also Figures 1 to 3, which is the first embodiment of the utility model, and this embodiment provides a technical solution: an NTC resistance automatic test and sorting machine, comprising a frame 1 and a constant temperature oil tank 4 arranged on the inner side of the frame 1, a feeding magnetic tank 2 is arranged on the top of the frame 1 relative to the left side of the constant temperature oil tank 4, a material belt chain 3 is connected to the frame 1 through a plurality of bearing seats, the bottom end of the material belt chain 3 is immersed in the inner side of the constant temperature oil tank 4, and a test wheel in contact with the material belt chain 3 is arranged on the inner side of the constant temperature oil tank 4, a dividing wheel 5 and a receiving tank 6 are arranged on the front surface of the frame 1 relative to the right side of the constant temperature oil tank 4, and the receiving tank 6 is at the bottom of the dividing wheel 5, and when actually used, the material belt chain 3 first brings the material supplied by the feeding magnetic tank 2 into the constant temperature oil tank 4, and then After that, it contacts with the test wheel in the constant temperature oil tank 4 for testing. After the test, it is taken out of the constant temperature oil tank 4 to the dividing and merging wheel 5 by the material chain 3. After being classified by the dividing and merging wheel 5, it falls into different compartments in the receiving tank 6 to complete a whole set of processes. A support plate 13 is arranged on the front surface of the frame 1 relative to the bottom of the receiving tank 6. The support plate 13 lifts the receiving tank 6. Two side support seats 14 are symmetrically fixed on the front surface of the frame 1 relative to the two sides of the receiving tank 6. Side support blocks 61 are welded and fixed on both side surfaces of the receiving tank 6. A rectangular notch 141 corresponding to the side support block 61 is opened on the side of the side support seat 14. The side support block 61 slides into the rectangular notch 141. A clamping limit structure 7 is also arranged between the support plate 13 and the receiving tank 6.

[0019] The clamping limiting structure 7 includes a bottom base block 71 fixed to the bottom surface of the support plate 13, and a limiting pressure plate 72 is movably installed on the front surface of the bottom base block 71. The top of the limiting pressure plate 72 extends to the front surface of the material receiving trough 6, which can effectively block and limit the material receiving trough 6, and at the same time facilitate the rapid disassembly and assembly of the material receiving trough 6 in the later stage. The clamping limiting structure 7 also includes a rear circular groove 75 opened inside the bottom base block 71, and a spring 77 and a circular end block 78 are arranged in the rear circular groove 75. A cylindrical connecting rod 76 is fixed to the front surface of the circular end block 78. The front end of the cylindrical connecting rod 76 passes through the front surface of the bottom base block 71 and is fixedly connected to the limiting pressure plate 72. A limiting clamping block 73 is fixed to the top surface of the limiting pressure plate 72. The locking cam 77 is in the state of being lifted up when the locking cam 71 is in the state of being lifted up, so that the locking cam 71 is in the state of being lifted up when the locking cam 71 is in the state of being lifted up.

[0020] Among them, one end of the spring 77 is against the inner wall of the rear circular groove 75, and the other end of the spring 77 is against the circular end block 78. The front surface of the base block 71 is provided with a circular hole connected to the rear circular groove 75. The circular hole corresponds to the cylindrical connecting rod 76 to ensure smooth penetration and subsequent movement of the cylindrical connecting rod 76.

[0021] An operation panel 11 and a test instrument 12 are also provided on the top of the rack 1 , and the operation panel 11 is located on the left side of the test instrument 12 .

[0022] Example 2

[0023] See also Figures 1 to 4 , which is the second embodiment of the utility model. This embodiment is based on the previous embodiment, and the difference is that the side support block 61 can be assisted in positioning when it is pushed into the inner side of the rectangular notch 141 by setting the rubber pad 142, the positioning protrusion 143 and the positioning groove 62, so that the subsequent operator can limit the rotation of the receiving trough 6 through the limiting pressure plate 72.

[0024] Specifically, a rubber pad 142 is fixed to the side wall of the rectangular notch 141, and the rubber pad 142 is at the top of the side support block 61. A positioning protrusion 143 is provided on the bottom surface of the rubber pad 142. A positioning groove 62 corresponding to the positioning protrusion 143 is opened on the top surface of the side support block 61. The bottom end of the positioning protrusion 143 is embedded in the positioning groove 62. When the material receiving trough 6 is installed, it will be pushed between the two side supports 14, and the side support block 61 will slide into the rectangular notch 141 until the material receiving trough 6 is smoothly pushed to the bottom of the dividing and merging wheel 5. At this time, the bottom end of the positioning protrusion 143 will be squeezed into the positioning groove 62, thereby realizing auxiliary limiting of the side support block 61 and the material receiving trough 6, thereby playing a certain auxiliary positioning effect when the clamping limiting structure 7 does not limit the material receiving trough 6.

[0025] The rubber pad 142 is L-shaped, and the rubber pad 142 and the positioning protrusion 143 are an integrated structure. Both are made of rubber material and can be elastically deformed when squeezed.

[0026] The structural principles of the NTC resistance automatic test and sorting machine in the present invention are all technologies that have been disclosed in the prior art, and do not involve the innovative parts and technical points of the present invention, so no further elaboration is given here.

[0027] Although the embodiments of the present invention have been shown and described (see the above detailed description for details), it will be understood by those skilled in the art that various changes, modifications, substitutions and variations may be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An NTC resistance automatic test sorting machine, comprising a frame (1) and a constant temperature oil tank (4) arranged on the inner side of the frame (1), a feeding magnetic tank (2) being arranged on the top of the frame (1) relative to the left side of the constant temperature oil tank (4), a material belt chain (3) being connected to the frame (1) through a plurality of bearing seats, the bottom end of the material belt chain (3) being immersed in the inner side of the constant temperature oil tank (4), and a test wheel in contact with the material belt chain (3) being arranged on the inner side of the constant temperature oil tank (4), a dividing and merging wheel (5) and a material receiving tank (6) being arranged on the front surface of the frame (1) relative to the right side of the constant temperature oil tank (4), and the material receiving tank (6) being located at the bottom of the dividing and merging wheel (5), characterized in that: A support plate (13) is arranged on the front surface of the frame (1) relative to the bottom of the material receiving trough (6), and the support plate (13) supports the material receiving trough (6). Two side support seats (14) are symmetrically fixed on the front surface of the frame (1) relative to the two sides of the material receiving trough (6). Side support blocks (61) are fixed on both side surfaces of the material receiving trough (6). A rectangular notch (141) corresponding to the side support block (61) is opened on the side of the side support seat (14), and the side support block (61) slides into the rectangular notch (141). A clamping type limiting structure (7) is also arranged between the support plate (13) and the material receiving trough (6); The clamping type limiting structure (7) comprises a base block (71) fixed on the bottom surface of the support plate (13), a limiting pressure plate (72) is movably mounted on the front surface of the base block (71), and the top end of the limiting pressure plate (72) extends to the front surface of the material receiving trough (6).

2. The NTC resistance automatic test and sorting machine according to claim 1, characterized in that: The clamping type limiting structure (7) also includes a rear circular groove (75) opened inside the base block (71), a spring (77) and a circular end block (78) are arranged in the rear circular groove (75), a cylindrical connecting rod (76) is fixed to the front surface of the circular end block (78), and the front end of the cylindrical connecting rod (76) passes through the front surface of the base block (71) and is fixedly connected to the limiting pressure plate (72).

3. The NTC resistance automatic test and sorting machine according to claim 2, characterized in that: A limiting clamping block (73) is fixed on the top surface of the limiting pressure plate (72), and a limiting clamping groove (74) corresponding to the limiting clamping block (73) is formed on the front surface of the material receiving trough (6), and the limiting clamping block (73) is embedded in the limiting clamping groove (74).

4. The NTC resistance automatic test and sorting machine according to claim 2, characterized in that: One end of the spring (77) abuts against the inner wall of the rear circular groove (75), and the other end of the spring (77) abuts against the circular end block (78).

5. The NTC resistance automatic test and sorting machine according to claim 2, characterized in that: The front surface of the bottom base block (71) is provided with a circular hole communicating with the rear circular groove (75), and the circular hole corresponds to the cylindrical connecting rod (76).

6. The NTC resistance automatic test and sorting machine according to claim 1, characterized in that: A rubber pad (142) is fixed to the side wall of the rectangular notch (141), and the rubber pad (142) is located at the top of the side support block (61). A positioning protrusion (143) is provided on the bottom surface of the rubber pad (142). A positioning groove (62) corresponding to the positioning protrusion (143) is provided on the top surface of the side support block (61), and the bottom end of the positioning protrusion (143) is embedded in the positioning groove (62).

7. The NTC resistance automatic test and sorting machine according to claim 6, characterized in that: The rubber pad (142) is L-shaped, and the rubber pad (142) and the positioning protrusion (143) are an integrated structure.

8. The NTC resistance automatic test and sorting machine according to claim 1, characterized in that: An operation panel (11) and a test instrument (12) are also provided on the top of the frame (1), and the operation panel (11) is located on the left side of the test instrument (12).

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