Mixing device for NTC thermistor raw materials

Abstract

The utility model discloses a mixing device for NTC (Negative Temperature Coefficient) thermistor raw materials, which comprises a working table, a mixing box is arranged at the top end of the working table, a material guide pipe is arranged at the top end of the mixing box, an auger is rotationally connected in the material guide pipe, and a discharge pipe is arranged between the bottom end of the mixing box and the working table; a transmission mechanism is arranged at the top end of the mixing box, and buffering assemblies are symmetrically arranged between the top end of the workbench and the mixing box. Wherein the transmission mechanism comprises a mounting box fixedly connected to the top end of the mixing box, a stirring blade rod is rotationally connected to the interior of the mixing box, a supporting frame is mounted on one side of the top end of the mixing box, a rotating rod is rotationally connected to the interior of the top end of the supporting frame, and rotating wheels are mounted at one end of the stirring blade rod and one end of the rotating rod; and compared with the mode that multiple sets of power-on devices are adopted in the prior art, more energy is saved, and the use cost of the device is greatly reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of thermistor production, in particular to a mixing device for NTC thermistor raw materials. Background Art

[0002] Thermistors are a type of sensitive components, which are divided into positive temperature coefficient thermistors and negative temperature coefficient thermistors NTC according to their temperature coefficients. The typical characteristic of thermistors is that they are sensitive to temperature and show different resistance values ​​at different temperatures. During the production process of thermistor components, the raw materials need to be mixed and stirred, so a mixing device is required.

[0003] Announcement No. CN215996477U discloses a raw material mixing device for thermistor production, which drives the spiral auger to rotate by a first motor to crush the raw material, and then pours the crushed raw material into the inside of the stirring chamber, so that it can be more fully mixed in the later stage. A stirring chamber is arranged inside the mixing box, a rotating shaft is arranged inside the stirring chamber, stirring shafts are arranged at both ends of the rotating shaft, and connecting rods and scrapers are arranged above and below the middle of the rotating shaft, so that the raw material is introduced into the stirring chamber from the first feed port, and then the second motor is used to drive the rotating shaft to rotate in combination with other crushed raw materials, thereby driving the stirring shaft to rotate, effectively stirring the raw material, and the crushed raw material can be evenly and fully mixed during the mixing process. However, the patent still has the following problems in actual use:

[0004] The device drives the spiral dragon to rotate by the first motor, thereby crushing the raw materials, and then drives the rotation of the rotating shaft, the stirring shaft, the connecting rod and the scraper by the second motor, so as to mix the raw materials and scrape off the residual raw materials. However, the device needs to use multiple sets of powered equipment to achieve the effect of crushing and mixing the raw materials, which greatly increases the use cost of the device and brings inconvenience to the staff when using it.

[0005] A mixing device for NTC thermistor raw materials is proposed to solve the above problems. Utility Model Content

[0006] The purpose of the utility model is to provide a mixing device for NTC thermistor raw materials to solve the problem proposed in the above background technology that the spiral auger is driven to rotate by a first motor to crush the raw materials, and then the rotating shaft, the stirring shaft, the connecting rod and the scraper are driven to rotate by a second motor to mix the raw materials and scrape off the residual raw materials. However, the device needs to use multiple sets of energized equipment to achieve the effect of crushing and mixing the raw materials, which greatly increases the use cost of the device and brings inconvenience to the staff when using it.

[0007] To achieve the above object, the utility model provides the following technical solutions: a mixing device for NTC thermistor raw materials, comprising a workbench, a mixing box is installed on the top of the workbench, a material guide pipe is installed on the top of the mixing box, an auger is rotatably connected inside the material guide pipe, and a discharge pipe is arranged between the bottom end of the mixing box and the workbench; a transmission mechanism is arranged on the top of the mixing box, and a buffer assembly is symmetrically arranged between the top of the workbench and the mixing box;

[0008] Wherein, the transmission mechanism includes an installation box fixedly connected to the top of the mixing box, and the mixing box is rotatably connected to a stirring blade rod inside, and a support frame is installed on one side of the top of the mixing box, and a rotating rod is rotatably connected to the top of the support frame, and a rotating wheel is installed at one end of the stirring blade rod and the rotating rod, and a belt is sleeved between the outer sides of the rotating wheel, and a sliding rod is slidably connected to the inside of one end of the installation box, and a first rotating tooth is installed at one end of the sliding rod located inside the installation box, and a second rotating tooth is rotatably connected to the bottom end of the installation box, and a third rotating tooth is installed at one end of the auger located inside the installation box.

[0009] Preferably, an electric telescopic rod is installed on one side of the top of the installation box, and a slider is installed on the output end of the electric telescopic rod, and the slider is located inside the top of the installation box for sliding connection, and the slide rod is located inside the bottom of the slide rod for snap-fitting and rotatable connection, and a fixed sleeve is installed on one end of the slide rod, and a square block is snap-fitting and slidably connected inside one side of the fixed sleeve, and one side of the square block is fixedly connected to the rotating rod.

[0010] Preferably, the buffer assembly includes a support plate symmetrically and slidably connected to the inside of the top end of the workbench, and fixed plates are symmetrically installed on both sides of the bottom end of the mixing box, and a fixed box is installed on one side of the top end of the support plate, and a movable frame is slidably connected to the inside of one side of the fixed box, and one end of the movable frame is fixedly connected to the fixed plate, and a support block is installed on one side of the inside of the fixed box, and a first retractable rod is installed between the inside of one end of the support block and the movable frame, and the outer side of the first retractable rod is sleeved with a first telescopic spring, and swivel seats are rotatably connected between both sides of the support block and the movable frame, and a second retractable rod is installed between the swivel seats, and the outer side of the second retractable rod is sleeved with a second telescopic spring.

[0011] Preferably, a fixing tube is symmetrically installed on one side of the fixing box, and both ends of the movable frame are slidably connected through the fixing tube, and a first shock-absorbing rubber block is arranged inside the fixing tube, and a second shock-absorbing rubber block is arranged between the fixing plate and the support plate.

[0012] Preferably, spiral teeth are symmetrically welded on the outer sides of both ends of the stirring blade rod, and a motor is installed at one end of the stirring blade rod.

[0013] Preferably, the first rotating teeth, the second rotating teeth and the third rotating teeth are meshingly connected.

[0014] Preferably, one end of the auger passes through the mounting box and is rotatably connected.

[0015] Compared with the prior art, the beneficial effects of the utility model are as follows: the mixing device for NTC thermistor raw materials is specifically designed as follows: through the cooperation between the rotating wheel and the belt, the rotation of the rotating rod is driven, the rotation of the square block drives the rotation of the fixed sleeve, the rotation of the sliding rod drives the rotation of the first rotating tooth, the rotation of the first rotating tooth drives the rotation of the second rotating tooth, the rotation of the second rotating tooth drives the rotation of the third rotating tooth, and the rotation of the third rotating tooth drives the rotation of the auger, thereby realizing the simultaneous operation of raw material crushing, transmission and stirring. Compared with the prior art method of using multiple groups of energized equipment, it is more energy-saving and greatly reduces the cost of using the device. The movement of the sliding rod is driven by the slider, and the sliding rod The movement of the first rotating tooth separates the second rotating tooth, thereby realizing high-frequency raw material stirring and low-frequency raw material transmission, which can bring diversity to the staff when using it. The first contraction rod is squeezed by the moving frame, thereby causing the first telescopic spring to contract, thereby realizing the effect of lateral buffering. The position of the multiple groups of rotating seats is changed by the movement of the moving frame, thereby causing the second contraction rod and the second telescopic spring to contract, thereby realizing the effect of longitudinal buffering. Through longitudinal and lateral buffering, the shock is absorbed layer by layer, thereby greatly reducing the shaking amplitude of the mixing box, thereby avoiding the phenomenon of reduced service life due to long-term shaking of the mixing box, and can reduce noise generation to a certain extent.

[0016] 1. The stirring blade rod is driven to rotate by starting the motor, and the rotation of the stirring blade rod drives the rotation of the rotating wheel, and the rotating wheel and the belt cooperate to drive the rotation of the rotating rod, and the rotation of the rotating rod drives the rotation of the square block, and the rotation of the square block drives the rotation of the fixed sleeve, and the rotation of the fixed sleeve drives the rotation of the sliding rod, and the rotation of the sliding rod drives the rotation of the first rotating tooth, and the rotation of the first rotating tooth drives the rotation of the second rotating tooth, and the rotation of the second rotating tooth drives the rotation of the third rotating tooth, and the rotation of the third rotating tooth drives the rotation of the auger, so as to realize the simultaneous operation of raw material crushing, transmission and stirring. Compared with the prior art that adopts multiple groups of energized The device is more energy-efficient, greatly reduces the cost of using the device, and brings convenience to the staff when using it. After the raw materials are crushed and transmitted, the electric telescopic rod is started to drive the slider to slide inside the top of the installation box, and then the slider drives the movement of the slide bar. The movement of the slide bar separates the first rotating tooth and the second rotating tooth, and then the square block further slides into the fixed sleeve. At this time, the stirring blade rod mixes the raw materials, and the auger stops running, so that high-frequency raw material stirring and low-frequency raw material transmission can be achieved, which can bring diversity to the staff when using it and meet the staff's use needs;

[0017] 2. The raw material of thermistor itself contains a certain viscosity. Due to the increased internal friction of the viscous material, the stirring process may become difficult and the mixing box may shake to a certain extent. When the mixing box shakes, the mixing box will shake slightly on the workbench. At this time, the fixed plate drives the mobile frame to slide inside the fixed box, so that the support plate slides slightly on the workbench. At this time, the mobile frame squeezes the first contraction rod, so that the first telescopic spring contracts to achieve a lateral buffering effect. The position of multiple groups of swivels is changed by the movement of the mobile frame, so that the second contraction rod and the second telescopic spring contract to achieve a longitudinal buffering effect. Through longitudinal and transverse buffering, the shock is absorbed layer by layer, thereby greatly reducing the shaking amplitude of the mixing box, thereby avoiding the phenomenon of reduced service life due to long-term shaking of the mixing box, and can reduce noise to a certain extent, bringing convenience to the staff when using it. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0019] Figure 2 It is a partial enlarged structural diagram of the transmission mechanism in the utility model;

[0020] Figure 3 It is a schematic diagram of the enlarged structure of the local operation of the transmission mechanism in the utility model;

[0021] Figure 4 It is a partial enlarged structural schematic diagram of the buffer component in the utility model;

[0022] Figure 5 It is a schematic diagram of the enlarged structure of part A in the utility model.

[0023] In the figure: 1. workbench; 101. mixing box; 102. material guide pipe; 103. auger; 104. material discharge pipe; 105. motor; 2. transmission mechanism; 201. installation box; 202. stirring blade rod; 203. support frame; 204. rotating rod; 205. rotating wheel; 206. belt; 207. sliding rod; 208. first rotating tooth; 209. second rotating tooth; 210. third rotating tooth; 211. electric telescopic rod; 212. sliding block ; 213, fixed sleeve; 214, square block; 215, spiral teeth; 3, buffer assembly; 301, support plate; 302, fixed plate; 303, fixed box; 304, mobile frame; 305, support block; 306, first retractable rod; 307, first telescopic spring; 308, swivel seat; 309, second retractable rod; 310, second telescopic spring; 311, fixed tube; 312, first shock-absorbing rubber block; 313, second shock-absorbing rubber block. DETAILED DESCRIPTION

[0024] 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 implementation regulations described are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of 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.

[0025] See also Figure 1-5 The utility model provides a technical solution: a mixing device for NTC thermistor raw materials, comprising a workbench 1, a mixing box 101 is installed on the top of the workbench 1, and a material guide pipe 102 is installed on the top of the mixing box 101, and a screw 103 is rotatably connected inside the material guide pipe 102, and a discharge pipe 104 is arranged between the bottom end of the mixing box 101 and the workbench 1; a transmission mechanism 2 is arranged on the top of the mixing box 101, and a buffer component 3 is symmetrically arranged between the top of the workbench 1 and the mixing box 101;

[0026] The transmission mechanism 2 includes a mounting box 201 fixedly connected to the top of the mixing box 101, one end of the auger 103 penetrates the mounting box 201 and is rotatably connected, and the mixing box 101 is internally rotatably connected with a stirring blade rod 202, and a support frame 203 is installed on one side of the top of the mixing box 101, and a rotating rod 204 is rotatably connected to the top of the support frame 203, and a rotating wheel 205 is installed at one end of the stirring blade rod 202 and the rotating rod 204, and a belt 206 is sleeved between the outer sides of the rotating wheel 205, and a sliding rod 206 is slidably connected to the inside of one end of the mounting box 201. 7, and the sliding rod 207 is located at one end inside the installation box 201 and is installed with a first rotating tooth 208, and the bottom end of the installation box 201 is internally rotatably connected with a second rotating tooth 209, and the auger 103 is located at one end inside the installation box 201 and is installed with a third rotating tooth 210, and the first rotating tooth 208, the second rotating tooth 209 and the third rotating tooth 210 are meshed and connected, so that the raw material crushing, transmission and stirring are realized at the same time, which is more energy-saving than the method of using multiple sets of energized equipment in the prior art, greatly reduces the use cost of the device, and brings convenience to the staff when using it;

[0027] An electric telescopic rod 211 is installed on one side of the top of the installation box 201, and a slider 212 is installed on the output end of the electric telescopic rod 211, and the slider 212 is located inside the top of the installation box 201 for sliding connection, and the slide bar 207 is located inside the bottom of the slide bar 212 for engaging and rotating connection, and a fixed sleeve 213 is installed on one end of the slide bar 207, and a square block 214 is engaged and slidably connected inside one side of the fixed sleeve 213, and one side of the square block 214 is fixedly connected to the rotating rod 204, so that high-frequency raw material stirring and low-frequency Raw material transmission, which can bring diversity to the staff when using it and meet the staff's needs. Spiral teeth 215 are symmetrically welded on the outer sides of both ends of the stirring blade rod 202, and a motor 105 is installed at one end of the stirring blade rod 202. The rotation of the stirring blade rod 202 drives the rotation of the spiral teeth 215. The rotation of the spiral teeth 215 can stir the raw materials inside the mixing box 101, so that the spiral teeth 215 cooperate with the stirring blade rod 202 to make the raw material mixing effect better, greatly improve the raw material mixing efficiency, and bring convenience to the staff when using it.

[0028] The buffer assembly 3 includes a support plate 301 symmetrically slidably connected to the top of the workbench 1, and fixed plates 302 are symmetrically installed on both sides of the bottom end of the mixing box 101, and a fixed box 303 is installed on one side of the top of the support plate 301, and a moving frame 304 is slidably connected to the inside of one side of the fixed box 303, and one end of the moving frame 304 is fixedly connected to the fixed plate 302, and a support block 305 is installed on one side of the inside of the fixed box 303, and a first contraction rod 306 is installed between the inside of one end of the support block 305 and the moving frame 304, and the outer side of the first contraction rod 306 is sleeved with a first telescopic spring 307, and both sides of the support block 305 are rotatably connected to the moving frame 304, and a second contraction rod 309 is installed between the swivel seat 308, and the outer side of the second contraction rod 309 is sleeved with a second telescopic spring 310, through longitudinal and transverse buffering, the layers The layer absorbs the vibration, thereby greatly reducing the shaking amplitude of the mixing box 101, thereby avoiding the phenomenon that the service life of the mixing box 101 is reduced due to long-term shaking, and can reduce the noise generation to a certain extent, which brings convenience to the staff when using it. A fixed tube 311 is symmetrically installed on one side of the interior of the fixed box 303, and both ends of the movable frame 304 penetrate the fixed tube 311 for sliding connection, and a first shock-absorbing rubber block 312 is arranged inside the fixed tube 311, and a second shock-absorbing rubber block 313 is arranged between the fixed plate 302 and the support plate 301. The first shock-absorbing rubber block 312 is squeezed by the movement of the movable frame 304, and at the same time, the second shock-absorbing rubber block 313 is squeezed and deformed, so that the design of the first shock-absorbing rubber block 312 and the second shock-absorbing rubber block 313 can further improve the buffering effect of the mixing box 101, which brings practicality to the staff when using it.

[0029] Working principle: Before using this mixing device for NTC thermistor raw materials, it is necessary to check the overall condition of the device to ensure that it can work normally. Figure 1 - Figure 5 As shown, the stirring blade rod 202 is driven to rotate by starting the motor 105, and the rotation of the stirring blade rod 202 drives the rotation of the rotating wheel 205, and the cooperation between the rotating wheel 205 and the belt 206 drives the rotation of the rotating rod 204, and the rotation of the rotating rod 204 drives the rotation of the square block 214, and the rotation of the square block 214 drives the rotation of the fixing sleeve 213, and the rotation of the fixing sleeve 213 drives the rotation of the sliding rod 207, and the rotation of the sliding rod 207 drives the rotation of the first rotating tooth 208, and the rotation of the first rotating tooth 208 drives the rotation of the second rotating tooth 209, and the rotation of the second rotating tooth 209 drives the rotation of the third rotating tooth 210, and the rotation of the third rotating tooth 210 drives the rotation of the auger 103, so as to realize the simultaneous operation of raw material crushing, transmission and stirring. Compared with the method of using multiple groups of powered equipment in the prior art, it is more energy-saving, greatly reduces the cost of using the device, and brings convenience to the staff when using it. After crushing and transmission, the electric telescopic rod 211 is started to drive the slider 212 to slide inside the top of the installation box 201, and then the slider 212 drives the movement of the slider 207. The movement of the slider 207 separates the first rotating tooth 208 and the second rotating tooth 209, so that the square block 214 further slides into the fixed sleeve 213. At this time, the stirring blade rod 202 mixes the raw materials, and the auger 103 stops running, so that high-frequency raw material stirring and low-frequency raw material transmission can be achieved, which can bring diversity to the staff when using it and meet the staff's use needs. The rotation of the stirring blade rod 202 drives the rotation of the spiral teeth 215, and the rotation of the spiral teeth 215 can stir the raw materials inside the mixing box 101, so that the spiral teeth 215 cooperate with the stirring blade rod 202 to make the raw material mixing effect better, greatly improve the raw material mixing efficiency, and bring convenience to the staff when using it;

[0030] The thermistor raw material itself contains a certain viscosity. Due to the increased internal friction of the viscous material, the stirring process may become difficult and the mixing box 101 may shake to a certain extent. When the mixing box 101 shakes, the mixing box 101 will shake slightly on the workbench 1. At this time, the fixed plate 302 drives the movable frame 304 to slide inside the fixed box 303, thereby causing the support plate 301 to slide slightly on the workbench 1. At this time, the movable frame 304 squeezes the first contraction rod 306, thereby causing the first telescopic spring 307 to contract, thereby achieving a lateral buffering effect. The movement of the movable frame 304 causes the positions of the multiple groups of rotating seats 308 to change, thereby causing the second The retractable rod 309 and the second telescopic spring 310 are retracted to achieve the effect of longitudinal buffering. Through longitudinal and transverse buffering, the shock is absorbed layer by layer, thereby greatly reducing the shaking amplitude of the mixing box 101, thereby avoiding the phenomenon that the service life of the mixing box 101 is reduced due to long-term shaking, and can reduce noise generation to a certain extent, which brings convenience to the staff when using it. The first shock-absorbing rubber block 312 is squeezed by the movement of the mobile frame 304, and at the same time the second shock-absorbing rubber block 313 is squeezed and deformed. Therefore, through the design of the first shock-absorbing rubber block 312 and the second shock-absorbing rubber block 313, the buffering effect of the mixing box 101 can be further improved, which brings practicality to the staff when using it.

[0031] The workbench 1, mixing box 101, material guide pipe 102, auger 103, discharge pipe 104 and stirring blade 202 are in the prior art. Publication No. CN215996477U discloses a raw material mixing device for thermistor production, and the devices used therein are not described in detail here.

[0032] Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art may still modify the technical solutions described in the aforementioned embodiments, or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention shall be included in the protection scope of the present invention.

Claims

1. A mixing device for NTC thermistor raw materials, comprising a workbench (1), a mixing box (101) being mounted on the top of the workbench (1), a material guide pipe (102) being mounted on the top of the mixing box (101), an auger (103) being rotatably connected inside the material guide pipe (102), and a discharge pipe (104) being arranged between the bottom of the mixing box (101) and the workbench (1); It is characterized in that Also includes: A transmission mechanism (2) is provided at the top of the mixing box (101), and a buffer assembly (3) is symmetrically provided between the top of the workbench (1) and the mixing box (101); The transmission mechanism (2) comprises a mounting box (201) fixedly connected to the top of a mixing box (101), a stirring blade rod (202) being rotatably connected inside the mixing box (101), a support frame (203) being mounted on one side of the top of the mixing box (101), a rotating rod (204) being rotatably connected inside the top of the support frame (203), a rotating wheel (205) being mounted on one end of the stirring blade rod (202) and the rotating rod (204), a belt (206) being sleeved between the outer sides of the rotating wheel (205), a sliding rod (207) being slidably connected inside one end of the mounting box (201), a first rotating tooth (208) being mounted on one end of the sliding rod (207) located inside the mounting box (201), a second rotating tooth (209) being rotatably connected inside the bottom of the mounting box (201), and a third rotating tooth (210) being mounted on one end of the auger (103) located inside the mounting box (201).

2. A mixing device for NTC thermistor raw materials according to claim 1, characterized in that: An electric telescopic rod (211) is installed on one side of the top end of the installation box (201), and a slider (212) is installed on the output end of the electric telescopic rod (211), and the slider (212) is located inside the top end of the installation box (201) for sliding connection, and the slide bar (207) is located inside the bottom end of the slide bar (212) for engaging and rotating connection, and a fixing sleeve (213) is installed on one end of the slide bar (207), and a square block (214) is engaged and slidably connected inside one side of the fixing sleeve (213), and one side of the square block (214) is fixedly connected to the rotating rod (204).

3. A mixing device for NTC thermistor raw materials according to claim 1, characterized in that: The buffer assembly (3) comprises a support plate (301) symmetrically slidably connected to the inside of the top end of the workbench (1), and fixed plates (302) are symmetrically installed on both sides of the bottom end of the mixing box (101), and a fixed box (303) is installed on one side of the top end of the support plate (301), and a moving frame (304) is slidably connected to the inside of one side of the fixed box (303), and one end of the moving frame (304) is fixedly connected to the fixed plate (302), and one side of the inside of the fixed box (303) is installed A support block (305) is provided, and a first retractable rod (306) is installed between the interior of one end of the support block (305) and the moving frame (304), and a first telescopic spring (307) is sleeved on the outer side of the first retractable rod (306), and a rotating seat (308) is rotatably connected between both sides of the support block (305) and the moving frame (304), and a second retractable rod (309) is installed between the rotating seats (308), and a second telescopic spring (310) is sleeved on the outer side of the second retractable rod (309).

4. A mixing device for NTC thermistor raw materials according to claim 3, characterized in that: A fixing tube (311) is symmetrically mounted on one side of the fixing box (303), and both ends of the moving frame (304) penetrate the fixing tube (311) for sliding connection, and a first shock-absorbing rubber block (312) is arranged inside the fixing tube (311), and a second shock-absorbing rubber block (313) is arranged between the fixing plate (302) and the supporting plate (301).

5. A mixing device for NTC thermistor raw materials according to claim 1, characterized in that: Spiral teeth (215) are symmetrically welded to the outer sides of both ends of the stirring blade rod (202), and a motor (105) is installed at one end of the stirring blade rod (202).

6. A mixing device for NTC thermistor raw materials according to claim 1, characterized in that: The first rotating teeth (208), the second rotating teeth (209) and the third rotating teeth (210) are meshingly connected.

7. A mixing device for NTC thermistor raw materials according to claim 1, characterized in that: One end of the auger (103) passes through the mounting box (201) and is rotatably connected.

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