Thermistor epoxy packaging device

Abstract

The invention discloses a thermistor epoxy packaging device, which relates to the field of thermistor manufacturing and comprises a base, a bracket, a base plate, a storage box fixed above the base plate and a discharging component close to one side of the storage box, the heat preservation box is hung below the support, and the temporary liquid storage component is arranged below the heat preservation box; the limiting plate is arranged in the center of the upper portion of the base, the two first rotating rollers are rotationally installed at the same end of the limiting plate, the first mold plate and the second mold plate are fixed to the side walls of the two first rotating rollers respectively, and the driving component is connected with the same ends of the two first rotating rollers; the two mounting plates are arranged on the side, away from the feeding device, of the support, the second rotating roller is rotationally mounted in the middles of the two mounting plates, the second motor is mounted at the end, away from the second rotating roller, of one mounting plate, the execution end of the second motor is connected with the second rotating roller, and the scraping components are linearly arranged on the side wall of the second rotating roller at equal intervals. And the thermistor epoxy packaging device is good in thermoplastic quality.

Description

Technical Field

[0001] The invention mainly relates to the technical field of thermistor manufacturing, and in particular to a thermistor epoxy packaging device. Background Art

[0002] Thermistor (PTC) is a commonly used temperature sensor that can change its resistance value according to temperature changes. When the ambient temperature rises, the resistance value of the thermistor will decrease; conversely, when the ambient temperature decreases, the resistance value of the thermistor will increase. By detecting the changes in the thermistor, real-time monitoring and control of the surrounding environment can be achieved. The thermistor epoxy packaging device is a product that fixes the thermistor chip in epoxy resin to form a packaging structure with excellent electrical properties and mechanical strength. However, the existing packaging device has the problems of low packaging efficiency and poor molding due to environmental influences. Therefore, a high-efficiency and well-molded thermistor epoxy packaging device is needed.

[0003] According to an NTC thermistor epoxy packaging device provided by application number CN202111638000.0, the lower mold of the placed NTC thermistor can be heated through the cooperation of the adjustment mechanism, the transmission mechanism and the connecting mechanism, so that the packaging liquid can evenly fill the mold groove, thereby improving the product quality of the NTC thermistor during drip irrigation packaging; after the mold is closed, the mold can be automatically cooled, which effectively improves the efficiency of the NTC thermistor during packaging and improves the work efficiency of the NTC thermistor packaging operation.

[0004] The above patent document improves the molding quality by heating the lower mold so that the epoxy resin can be encapsulated at a suitable temperature. However, there are problems such as the epoxy resin easily overflowing during encapsulation and the thermistor may stick to the upper mold after encapsulation, making it difficult to discharge the material. Summary of the invention

[0005] Based on this, the object of the present invention is to provide a thermistor epoxy packaging device to solve the technical problems raised in the above background technology.

[0006] A thermistor epoxy packaging device comprises a base, a bracket fixed on the base, a pad on one side of the bracket, a feeding device on the upper surface of the base and located on one side of the bracket, a liquid supply device suspended directly below the bracket, a packaging device on the upper surface of the base and located entirely below the liquid supply device, and a discharging device on the other side of the bracket;

[0007] The feeding device includes a material storage box fixed above the pad, and a material discharge component of the material storage box close to one side of the bracket;

[0008] The liquid supply device includes an insulated box suspended below the bracket, and temporary liquid storage components linearly arranged at the same interval below the insulated box;

[0009] The packaging device includes a limit plate in the center above the base, two first rotating rollers rotatably mounted on the same end of the limit plate, a first mold plate and a second mold plate respectively fixed on the side walls of the two first rotating rollers, and a driving component connecting the same end of the two first rotating rollers;

[0010] The discharging device includes two mounting plates on the side of the bracket away from the feeding device, a second rotating roller rotatably installed in the middle of the two mounting plates, a second motor installed on a mounting plate away from one end of the second rotating roller and with an execution end connected to the second rotating roller, and scraping parts linearly arranged at the same interval on the side wall of the second rotating roller.

[0011] Preferably, the first mold plate and the second mold plate include half mold grooves which are combined at their upper parts to form a whole mold.

[0012] Preferably, a connecting assembly is provided above the first mold plate, including a strip-shaped electromagnet in the middle of each half mold groove of the first mold plate and a strip-shaped metal groove in the middle of each half mold groove of the second mold plate.

[0013] Preferably, a pushing assembly is provided inside the second mold plate, including a strip telescopic cylinder inside the second mold plate, an arc-shaped sheet regularly arranged above the execution end of the strip telescopic cylinder, and an arc-shaped groove on the side wall of each half mold groove of the second mold plate.

[0014] Preferably, the driving component includes a gear reducer having two output ports, and a first motor whose execution end is connected to an input end of the gear reducer.

[0015] Preferably, a plurality of cylindrical grooves are obliquely provided inside the storage box.

[0016] Preferably, the discharge component includes a baffle hinged to the side of the storage box close to the bracket, one end of which is hinged to the edge of one side of the baffle and the other end of which is hinged to the first telescopic rod at one end of the storage box.

[0017] Preferably, the temporary liquid storage component includes an insulation pipe fixed below the insulation box and an electrically controlled valve below the insulation pipe.

[0018] Preferably, the insulation box includes a feeding port at the top, a pump at one end of the insulation box, and a liquid guide tube with an output end of the pump and the other end connected to the side wall of the insulation tube.

[0019] Preferably, the scraping component includes a second telescopic rod on the side wall of the second rotating roller, and the execution end of the second telescopic rod is away from the rubber pad on one side of the bracket.

[0020] In summary, the present invention mainly has the following beneficial effects:

[0021] In this embodiment, by using two mold plates with a rotating opening and closing design, materials can be discharged while being fed in, which greatly improves work efficiency. Temporary reinforcement of the two mold plates closed together by electromagnets can prevent epoxy resin from overflowing.

[0022] By adding a pusher component inside half of the template, the packaged thermistor can be prevented from sticking to the mold that needs to be fed. By adding a temporary storage component, the amount of epoxy resin added each time can be accurately controlled, costs can be controlled, and liquid supply efficiency can be improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 It is an axonometric diagram of the overall device of the present invention;

[0024] Figure 2 A split axonometric diagram of some devices of the present invention;

[0025] Figure 3 It is an overall front view of the present invention;

[0026] Figure 4 It is an axonometric schematic diagram of the packaging device of the present invention;

[0027] Figure 5 It is a schematic diagram of some components of the present invention;

[0028] Figure 6 It is an axonometric view of the feeding device of the present invention;

[0029] Figure 7 It is a cross-sectional view of the feeding device of the present invention.

[0030] Description of the drawings: 10, base; 11, bracket; 12, pad; 20, feeding device; 30, liquid supply device; 40, packaging device; 50, discharging device; 21, storage box; 22, discharge component; 31, insulation box; 32, temporary liquid storage component; 41, limit plate; 42, first rotating roller; 43, first mold plate; 44, second mold plate; 45, driving component; 51, mounting plate; 52, second rotating roller; 53, second motor; 54, scraping component; 431, half mold groove; 4 32. Connecting assembly; 4321. Bar electromagnet; 4322. Bar metal groove; 441. Pushing assembly; 4411. Bar telescopic cylinder; 4412. Arc sheet; 4413. Arc groove; 451. Gear reducer; 452. First motor; 211. Cylindrical groove; 221. Baffle; 222. First telescopic rod; 321. Insulating tube; 322. Electric control valve; 311. Feeding port; 312. Pump; 313. Liquid guide tube; 541. Second telescopic rod; 542. Rubber pad. DETAILED DESCRIPTION

[0031] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the accompanying drawings in the embodiments of the present invention.

[0032] Example

[0033] Please refer to the attached Figure 1 , 2 , 3, 6, and 7, a thermistor epoxy packaging device includes a base 10, a bracket 11 fixed above the base 10, a pad 12 on one side of the bracket 11, a feeding device 20 on the upper surface of the base 10 and located on one side of the bracket 11, a liquid supply device 30 suspended directly below the bracket 11, a packaging device 40 on the upper surface of the base 10 and located entirely below the liquid supply device 30, and a discharging device 50 on the other side of the bracket 11; the feeding device 20 includes a storage box 2 fixed above the pad 12 1, a material storage box 21 and a material discharge part 22 on one side of the bracket 11; a liquid supply device 30 includes a heat preservation box 31 suspended below the bracket 11, and temporary liquid storage parts 32 arranged linearly at the same interval below the heat preservation box 31; a packaging device 40 includes a limit plate 41 at the center above the base 10, two first rotating rollers 42 rotatably mounted on the same end of the limit plate 41, a first mold plate 43 and a second mold plate 44 respectively fixed on the side walls of the two first rotating rollers 42, and a first mold plate 43 and a second mold plate 44 connected to the same end of the two first rotating rollers 42. The discharging device 50 includes two mounting plates 51 on the side of the bracket 11 away from the feeding device 20, a second rotating rod 52 rotatably mounted in the middle of the two mounting plates 51, a second motor 53 mounted on one mounting plate 51 away from the end of the second rotating rod 52 and connected to the second rotating rod 52 at the execution end, and a scraping member 54 arranged linearly at the same interval on the side wall of the second rotating rod 52; a plurality of cylindrical grooves 211 are obliquely penetrated inside the storage box 21; the discharging member 22 includes a hinged connection to the storage box The baffle 221 on one side of the material box 21 close to the bracket 11 has one end hinged to the edge of one side of the baffle 221 and the other end hinged to the first telescopic rod 222 at one end of the material storage box 21; the temporary liquid storage component 32 includes an insulation pipe 321 fixed below the insulation box 31 and an electric control valve 322 below the insulation pipe 321; the insulation box 31 includes a feeding port 311 at the top, a pump 312 at one end of the insulation box 31, and a liquid guide tube 313 with an output end of the pump 312 and the other end connected to the side wall of the insulation pipe 321.

[0034] It should be noted that the diameter of the cylindrical groove 211 is only slightly larger than the outer diameter of the thermistor to be packaged. When feeding manually, the packaged end of the thermistor should be thrown downward from the upper end of the cylindrical groove 211 into the storage box 21 to form a stacked state. The response speed of the first telescopic rod 222 needs to be fine-tuned to an appropriate speed so that it can be quickly closed when a thermistor is released to prevent over-feeding.

[0035] Further, the thermistor is thrown into the storage box 21 from the upper end of the cylindrical groove 211, and the epoxy resin is added into the heat preservation box 31 through the feeding port 311 and the epoxy resin is preheated;

[0036] Further, the first telescopic rod 222 extends to push the baffle 221 to open the lower end of the storage box 21. When a thermistor falls into the half mold groove 431 on the second mold plate 44, the first telescopic rod 222 contracts to drive the baffle 221 to close the lower end of the storage box 21.

[0037] Furthermore, the pump 312 extracts the epoxy resin in the insulation box 31 and pre-stores it in the insulation pipe 321 through the liquid guide tube 313.

[0038] Please refer to the attached Figure 1 , 4 As shown in Figures 5 and 6, the first mold plate 43 and the second mold plate 44 include half mold grooves 431 which are combined at the top to form a whole mold; a connecting component 432 is provided on the top of the first mold plate 43, including a strip electromagnet 4321 in the middle of each half mold groove 431 of the first mold plate 43, and a strip metal groove 4322 in the middle of each half mold groove 431 of the second mold plate 44; a pushing component 441 is provided inside the second mold plate 44, including a strip telescopic cylinder 4411 inside the second mold plate 44, an arc-shaped sheet 4412 regularly arranged above the execution end of the strip telescopic cylinder 4411, and an arc groove 4413 on the side wall of each half mold groove 431 of the second mold plate 44; the driving component 45 includes a gear reducer 451 with two output ports, and a first motor 452 whose execution end is connected to the input end of the gear reducer 451.

[0039] It should be noted that the first mold plate 43 and the second mold plate 44 are initially placed flat on the base 10. When the two are placed vertically, the entire mold groove formed by the combination can wrap the bottom end of the insulation tube 321. The two output ports of the gear reducer 451 output the rotational force with the same speed but opposite directions. The first motor 452 can also rotate forward and reverse. The first motor 452 will stop running after being strongly blocked.

[0040] Furthermore, when the feeding and liquid storage are completed, the first motor 452 is started, and the two first rotating rollers 42 installed on the same end of the limit plate 41 are driven to rotate in the opposite direction through the gear reducer 451, so as to close the first mold plate 43 and the second mold plate 44;

[0041] Further, after the first mold plate 43 and the second mold plate 44 are closed, the first motor 452 stops, and the bar-shaped electromagnet 4321 is energized, and the first mold plate 43 and the second mold plate 44 are tightly combined together through the bar-shaped metal groove 4322;

[0042] Further, the electrically controlled valve 322 is opened, and the heat-insulating epoxy resin flows into the integrated half-mold groove 431 to encapsulate the thermistor;

[0043] Further, after the package cooling is completed, the bar-shaped electromagnet 4321 is powered off, the bar-shaped telescopic cylinder 4411 is extended, and the arc-shaped sheet 4412 is extended from the arc-shaped groove 4413, so as to separate the first mold plate 43 from the second mold plate 44;

[0044] Furthermore, the first motor 452 is started in reverse rotation, and drives the two first rotating rollers 42 to rotate in opposite directions through the gear reducer 451, so that the first mold plate 43 and the second mold plate 44 are separated to a flat state.

[0045] Please refer to the attached Figure 1 , 2 As shown in FIG. 3 , the scraping component 54 includes a second telescopic rod 541 on the side wall of the second rotating roller 52 , and a rubber pad 542 at the execution end of the second telescopic rod 541 away from the side of the bracket 11 .

[0046] It should be noted that the rubber pad 542 is mainly used to buffer and increase the friction of the push material to prevent the epoxy resin that has just been packaged from being smashed.

[0047] Furthermore, when the first mold plate 43 is placed flat again, the second motor 53 is started, driving the second rotating roller 52 installed in the middle of the two mounting plates 51 to rotate;

[0048] Further, the second telescopic rod 541 is extended, and the execution end scrapes off the packaged thermistor on the first mold plate 43 through the rubber pad 542 to complete the discharge, and then the second telescopic rod 541 is retracted and the second motor 53 stops.

[0049] The working principle of the present invention is:

[0050] The electrical components in the present invention are all triggered by the PLC controller, and the PLC controller model is "FX3U-16MR"

[0051] First, the thermistor is dropped into the storage box 21 from the upper end of the cylindrical groove 211, and the epoxy resin is added into the insulation box 31 through the feeding port 311 and preheated. The first telescopic rod 222 extends to push the baffle 221 to open the lower end of the storage box 21. When a thermistor falls into the half mold groove 431 on the second mold plate 44, the first telescopic rod 222 contracts, driving the baffle 221 to close the lower end of the storage box 21, and the pump 312 extracts the epoxy resin in the insulation box 31. The epoxy resin is pre-stored in the insulation tube 321 through the liquid guide tube 313. When the feeding and liquid storage are completed, the first motor 452 is started, and the two first rotating rollers 42 installed at the same end of the limit plate 41 are driven to rotate in the opposite direction through the gear reducer 451, so as to close the first mold plate 43 and the second mold plate 44. After the first mold plate 43 and the second mold plate 44 are closed, the first motor 452 stops, and the bar electromagnet 4321 is energized, and the bar metal slot 4 322 tightly combines the first mold plate 43 and the second mold plate 44 together, the electric control valve 322 is opened, and the insulating epoxy resin flows into the integrated half mold groove 431 to encapsulate the thermistor. After the encapsulation and cooling are completed, the strip electromagnet 4321 is powered off, the strip telescopic cylinder 4411 is extended, and the arc piece 4412 is extended from the arc groove 4413, so that the first mold plate 43 and the second mold plate 44 are separated, and the first motor 452 is reversed and started, and the two first rotating rods 42 are driven to rotate in the opposite direction through the gear reducer 451, so that the first mold plate 43 and the second mold plate 44 are separated to a flat state. When the first mold plate 43 is flat again, the second motor 53 is started, and the second rotating rod 52 installed in the middle of the two mounting plates 51 is driven to rotate, and the second telescopic rod 541 is extended. The execution end scrapes the encapsulated thermistor on the first mold plate 43 through the rubber pad 542 to complete the discharge, and then the second telescopic rod 541 is retracted, and the second motor 53 stops.

[0052] The above embodiments are only for illustrating the technical idea of ​​the present invention, and cannot be used to limit the protection scope of the present invention. Any changes made on the basis of the technical solution in accordance with the technical idea proposed by the present invention shall fall within the protection scope of the present invention.

Claims

1. A thermistor epoxy packaging device, comprising a base (10), a bracket (11) fixed above the base (10), and a pad (12) on one side of the bracket (11), characterized in that: A feeding device (20) is located on the upper surface of the base (10) and on one side of the bracket (11), a liquid supply device (30) is suspended directly below the bracket (11), a packaging device (40) is located on the upper surface of the base (10) and directly below the liquid supply device (30), and a discharging device (50) is located on the other side of the bracket (11); The feeding device (20) comprises a material storage box (21) fixed above the pad (12), and a material discharge component (22) on one side of the material storage box (21) close to the bracket (11); The liquid supply device (30) comprises a heat preservation box (31) suspended below the bracket (11), and temporary liquid storage components (32) linearly arranged at the same interval below the heat preservation box (31); The packaging device (40) comprises a limiting plate (41) at the center above the base (10), two first rotating rollers (42) rotatably mounted on the same end of the limiting plate (41), a first mold plate (43) and a second mold plate (44) respectively fixed on the side walls of the two first rotating rollers (42), and a driving component (45) connected to the same end of the two first rotating rollers (42); The discharging device (50) comprises two mounting plates (51) on a side of the bracket (11) away from the feeding device (20), a second rotating roller (52) rotatably mounted in the middle of the two mounting plates (51), a second motor (53) mounted on one end of the mounting plate (51) away from the second rotating roller (52) and with an execution end connected to the second rotating roller (52), and a scraping component (54) linearly arranged at the same interval on the side wall of the second rotating roller (52).

2. A thermistor epoxy packaging device according to claim 1, characterized in that: The first mold plate (43) and the second mold plate (44) include a half mold groove (431) which forms a whole mold when the upper parts of the two are combined.

3. A thermistor epoxy packaging device according to claim 2, characterized in that: A connecting assembly (432) is provided above the first mold plate (43), comprising a strip-shaped electromagnet (4321) in the middle of each half mold groove (431) of the first mold plate (43) and a strip-shaped metal groove (4322) in the middle of each half mold groove (431) of the second mold plate (44).

4. The thermistor epoxy packaging device according to claim 2, characterized in that: A material pushing assembly (441) is provided inside the second mold plate (44), comprising a strip-shaped telescopic cylinder (4411) inside the second mold plate (44), an arc-shaped sheet (4412) regularly arranged above the execution end of the strip-shaped telescopic cylinder (4411), and an arc-shaped groove (4413) on the side wall of each half mold groove (431) of the second mold plate (44).

5. The thermistor epoxy packaging device according to claim 1, characterized in that: The driving component (45) includes a gear reducer (451) having two output ports, and a first motor (452) whose execution end is connected to the input end of the gear reducer (451).

6. The thermistor epoxy packaging device according to claim 1, characterized in that: A plurality of cylindrical grooves (211) are obliquely and penetratingly arranged inside the material storage box (21).

7. The thermistor epoxy packaging device according to claim 1, characterized in that: The material discharging component (22) comprises a baffle (221) hinged to a side of the material storage box (21) close to the bracket (11), a first telescopic rod (222) having one end hinged to an edge of one side of the baffle (221) and the other end hinged to one end of the material storage box (21).

8. The thermistor epoxy packaging device according to claim 1, characterized in that: The temporary liquid storage component (32) comprises a heat preservation pipe (321) fixed below the heat preservation box (31) and an electric control valve (322) below the heat preservation pipe (321).

9. The thermistor epoxy packaging device according to claim 8, characterized in that: The heat preservation box (31) comprises a feeding port (311) at the top, a pump (312) at one end of the heat preservation box (31), and a liquid guide tube (313) at the output end of the pump (312) and the other end of which is connected to the side wall of the heat preservation tube (321).

10. The thermistor epoxy packaging device according to claim 1, characterized in that: The scraping component (54) comprises a second telescopic rod (541) on the side wall of the second rotating roller (52), and a rubber pad (542) at the side where the execution end of the second telescopic rod (541) is away from the bracket (11).

Images