Surface treatment device for ceramic PTC (Positive Temperature Coefficient) thermal sensitive ceramic resistor element

Abstract

The invention is applicable to the technical field of thermal sensitive ceramic resistors, and provides a surface treatment device for a ceramic PTC thermal sensitive ceramic resistor element, which comprises a [-shaped frame with an upward opening, a first conveyor belt mounted in the opening end of the [-shaped frame, a driving motor mounted in the [-shaped frame, and a second conveyor belt mounted in the opening end of the [-shaped frame, the driving motor is connected with the first conveying belt, by arranging the grinding assembly, when the resistor element moves to the bottom, grinding abrasive paper is conveniently driven to descend for grinding, so that the grinding abrasive paper is completely in contact with the resistor element, and the grinding effect is conveniently improved; through the arrangement of the polishing assembly, polishing force is conveniently buffered, excessive polishing is prevented, through the arrangement of the positioning assembly, the moving resistor elements are conveniently positioned and fixed, deviation and polishing influence are avoided, and through the arrangement of the feeding assembly and the discharging assembly, automatic feeding and discharging are facilitated.

Description

Technical Field

[0001] The present invention belongs to the technical field of thermosensitive ceramic resistors, and particularly relates to a surface treatment device for a ceramic PTC thermosensitive ceramic resistor element. Background Art

[0002] A thermistor is a sensor resistor whose resistance value changes with temperature. According to different temperature coefficients, it is divided into a positive temperature coefficient thermistor and a negative temperature coefficient thermistor. The resistance value of a positive temperature coefficient thermistor increases with the increase of temperature, and the resistance value of a negative temperature coefficient thermistor decreases with the increase of temperature. They both belong to semiconductor devices.

[0003] The prior art still has the following deficiencies:

[0004] When the existing device grinds the surface of an ultra-thin chip ceramic thermistor, it cannot perform downward pressing grinding, resulting in insufficient fitting degree between the grinding roller and the surface of the thermistor, thereby affecting the grinding effect of the thermistor. Summary of the Invention

[0005] The present invention provides a surface treatment device for a ceramic PTC thermosensitive ceramic resistor element, aiming to solve the problem that when the existing device grinds the surface of an ultra-thin chip ceramic thermistor, it cannot perform downward pressing grinding, resulting in insufficient fitting degree between the grinding roller and the surface of the thermistor, thereby affecting the grinding effect of the thermistor.

[0006] The present invention is realized as follows: A surface treatment device for a ceramic PTC thermosensitive ceramic resistor element includes a U-shaped frame with an upward opening. A first conveyor belt is installed inside the open end of the U-shaped frame. A driving motor is installed inside the U-shaped frame, and the driving motor is connected to the first conveyor belt;

[0007] A positioning component is arranged inside the U-shaped frame. A grinding component is arranged near the upper end of the positioning component. A loading component is arranged on one side of the U-shaped frame, and an unloading component is arranged on the other side of the U-shaped frame;

[0008] The grinding component includes a bracket detachably and fixedly connected between the front and rear sides of the upper end of the U-shaped frame. The lower ends of both sides of the bracket are respectively fixedly connected with a first electric telescopic rod.

[0009] Preferably, the grinding component further includes a first connecting plate fixedly connected to the telescopic ends of the two first electric telescopic rods;

[0010] A second connecting plate is arranged at the lower end of the first connecting plate;

[0011] A number of first dampers are installed between the first connecting plate and the second connecting plate, and first buffer springs are sleeved on the a number of first dampers.

[0012] Preferably, the grinding assembly further includes a U-shaped seat with a downward opening that is detachably and fixedly connected to the lower end of the second connecting plate, and a stepping motor is installed on one side of the U-shaped seat.

[0013] Preferably, the output end of the stepping motor of the grinding assembly passes through one side of the U-shaped seat and is fixedly connected to an installation cylinder. The extended end of the installation cylinder is rotatably connected to the other side of the U-shaped seat, and a grinding sandpaper is detachably and fixedly connected to the surface of the installation cylinder.

[0014] Preferably, the positioning assembly includes installation grooves formed on both inner walls of the U-shaped frame. Second electric telescopic rods are fixedly connected to both sides of the inner parts of the two installation grooves respectively. The telescopic ends of the four second electric telescopic rods are fixedly connected to connecting seats respectively. One same fixing plate is detachably and fixedly connected to one side of every two adjacent connecting seats close to one side. Installation seats are detachably and fixedly connected to both ends of one side of the two fixing plates close to the four connecting seats respectively. A number of second dampers are detachably and fixedly connected between the four installation seats and the four connecting seats, and second buffer springs are sleeved on the a number of second dampers.

[0015] Preferably, the positioning assembly further includes rotation grooves formed on the sides of the two fixing plates close to each other. A number of positioning cylinders are rotatably connected between the upper and lower ends of the inner parts of the two rotation grooves.

[0016] Preferably, the feeding assembly includes a first opening groove formed at the front end of one side of the U-shaped frame. A first infrared sensor is installed at the lower end of the first opening groove. A first column bracket is arranged on the front end of the U-shaped frame close to one side of the first opening groove.

[0017] Preferably, the feeding assembly further includes a first electric push rod fixedly connected to the upper end of one side of the first column bracket close to the first opening groove. The telescopic end of the first electric push rod is fixedly connected to a first push plate. The first push plate corresponds to the first opening groove. A second conveyor belt is arranged at the front end flush with the first opening groove, and a first baffle is arranged at the end of the second conveyor belt.

[0018] Preferably, the blanking assembly includes second open grooves respectively opened at the front and rear ends of the other side of the U-shaped frame, wherein a second infrared sensor is installed on the lower side of the front end of the second open groove close to the rear end, and a second column bracket is provided at the front end of the second open groove close to the front end of the U-shaped frame, and a second electric push rod is fixedly connected to the side of the second column bracket close to the second open groove, and a second push plate is fixedly connected to the telescopic end of the second electric push rod.

[0019] Preferably, the unloading assembly also includes a third conveyor belt arranged at the rear end of the U-shaped frame close to the second opening groove, and a second baffle is arranged at the rear end of the third conveyor belt.

[0020] Compared with the prior art, the embodiments of the present application have the following beneficial effects:

[0021] By providing a grinding component, when the resistance element moves to the bottom, the grinding sandpaper can be driven down for grinding, so that the grinding sandpaper is in complete contact with the resistance element, thereby improving the grinding effect. By providing a first damper and a first buffer spring, the grinding force can be buffered to prevent excessive grinding. By providing a positioning component, the moving resistance element can be positioned and fixed to avoid displacement and influence on grinding. By providing a loading component and an unloading component, automatic loading and unloading can be facilitated. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a schematic diagram of the top view structure of the present invention;

[0023] Figure 2 The present invention Figure 1 The enlarged structural diagram at A in the middle;

[0024] Figure 3 It is a schematic diagram of the front view structure of the positioning tube of the present invention;

[0025] Figure 4 The present invention Figure 1 The enlarged structural diagram at B in the middle;

[0026] Figure 5 It is a schematic diagram of the front view structure of the grinding component of the present invention;

[0027] Figure 6 The present invention Figure 5 The enlarged structural diagram at C in the middle;

[0028] Figure 7 It is a schematic diagram of the structure of the connection between the grinding sandpaper and the mounting tube of the present invention;

[0029] In the figure: 1. U-shaped frame; 2. First conveyor belt; 3. Positioning component; 4. Polishing component; 5. Loading component; 6. Unloading component; 7. Support; 8. First electric telescopic rod; 9. First connecting plate; 10. Second connecting plate; 11. First damper; 12. First buffer spring; 13. U-shaped seat; 14. Stepper motor; 15. Installation cylinder; 16. Polishing sandpaper; 17. Installation groove; 18. Second electric telescopic rod; 19. Connecting seat; 20. Installation seat; 21. Second damper; 22. Second buffer spring; 23. Fixed plate; 24. Rotation groove; 25. Positioning cylinder; 26. First opening groove; 27. First infrared sensor; 28. Second conveyor belt; 29. First baffle; 30. First column support; 31. First electric push rod; 32. First push plate; 33. Second opening groove; 34. Second infrared sensor; 35. Second column support; 36. Second electric push rod; 37. Second push plate; 38. Third conveyor belt; 39. Second baffle. Detailed implementation manners

[0030] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the technical field to which this application belongs; the terms used in the specification of this application are only for the purpose of describing specific embodiments and are not intended to limit this application; the terms "including" and "having" and any variations thereof in the specification and claims of this application and the above drawings are intended to cover non-exclusive inclusion. The terms "first", "second", etc. in the specification and claims of this application or the above drawings are used to distinguish different objects and not to describe a specific order.

[0031] Reference to "embodiment" herein means that a particular feature, structure, or characteristic described in connection with the embodiment can be included in at least one embodiment of this application. The phrase appears in various places in the specification and does not necessarily refer to the same embodiment, nor is it an independent or alternative embodiment mutually exclusive of other embodiments. Those skilled in the art will explicitly and implicitly understand that the embodiments described herein can be combined with other embodiments.

[0032] An embodiment of the present invention provides a surface treatment device for a ceramic PTC thermistor ceramic resistor element, as Figure 1-7As shown in the figure, it includes: a U-shaped frame 1 with an upward opening. Inside the opening end of the U-shaped frame 1, a first conveyor belt 2 is installed. Inside the U-shaped frame 1, a driving motor is installed, and the driving motor is connected to the first conveyor belt 2. A positioning component 3 is arranged inside the U-shaped frame 1. A grinding component 4 is arranged near the upper end of the positioning component 3. A feeding component 5 is arranged on one side of the U-shaped frame 1, and a discharging component 6 is arranged on the other side of the U-shaped frame 1. The grinding component 4 includes a bracket 7 detachably and fixedly connected between the front and rear sides of the upper end of the U-shaped frame 1. On both sides of the lower end of the bracket 7, first electric telescopic rods 8 are respectively fixedly connected.

[0033] It should be noted that when the existing device grinds the surface of the ultra-thin chip ceramic thermistor, it cannot perform downward pressing grinding, resulting in insufficient fit between the grinding roller and the surface of the thermistor, thereby affecting the grinding effect of the thermistor. In this solution, by setting the grinding component 4, it is convenient to drive the grinding sandpaper 16 to descend for grinding when the resistance element moves to the bottom, so that the grinding sandpaper 16 is in full contact with the resistance element, which is convenient to improve the grinding effect. By setting the positioning component 3, it is convenient to position and fix the moving resistance element to avoid deviation and affect grinding. By setting the feeding component 5 and the discharging component 6, it is convenient for automatic feeding and discharging.

[0034] In a further preferred embodiment of the present invention, as Figure 1-6 shown, the grinding component 4 further includes a first connecting plate 9 fixedly connected to the telescopic ends of the two first electric telescopic rods 8. A second connecting plate 10 is arranged at the lower end of the first connecting plate 9. A number of first dampers 11 are installed between the first connecting plate 9 and the second connecting plate 10, and first buffer springs 12 are sleeved on the number of first dampers 11.

[0035] In this embodiment, by setting the first dampers 11 and the first buffer springs 12, it is convenient to buffer the grinding force and prevent excessive grinding.

[0036] In a further preferred embodiment of the present invention, as Figure 1-6 shown, the grinding component 4 further includes a U-shaped seat 13 with a downward opening detachably and fixedly connected to the lower end of the second connecting plate 10. A stepping motor 14 is installed on one side of the U-shaped seat 13.

[0037] In this embodiment, it is convenient to drive the grinding sandpaper 16 to rotate for grinding.

[0038] In a further preferred embodiment of the present invention, as Figure 1-7 shown, the grinding component 4 further includes an installation cylinder 15 fixedly connected to the output end of the stepping motor 14 passing through one side of the U-shaped seat 13. The extended end of the installation cylinder 15 is rotatably connected to the other side of the U-shaped seat 13. A grinding sandpaper 16 is detachably and fixedly connected to the surface of the installation cylinder 15.

[0039] In this embodiment, replacement is facilitated.

[0040] In a further preferred embodiment of the present invention, Figure 1-2 As shown, the positioning assembly 3 includes mounting grooves 17 opened on both sides of the inner wall of the U-shaped frame 1, and the second electric telescopic rods 18 are fixedly connected to the inner sides of the two mounting grooves 17 respectively, and the telescopic ends of the four second electric telescopic rods 18 are fixedly connected to the connecting seats 19 respectively, wherein one side of each of the two connecting seats 19 close to one side is detachably fixedly connected with the same fixing plate 23, and the two fixing plates 23 are detachably fixedly connected to the mounting seats 20 at both ends of the side close to the four connecting seats 19, and a plurality of second dampers 21 are detachably fixedly connected between the four mounting seats 20 and the four connecting seats 19, and a second buffer spring 22 is sleeved on the plurality of second dampers 21.

[0041] In this embodiment, it is convenient to buffer the clamping and positioning force.

[0042] In a further preferred embodiment of the present invention, Figure 1-3 As shown, the positioning assembly 3 further includes a rotation groove 24 provided on one side of the two fixing plates 23 close to each other, and a plurality of positioning cylinders 25 are rotatably connected between the upper and lower ends of the two rotation grooves 24 .

[0043] In this embodiment, positioning is convenient and transportation can be performed while positioning.

[0044] In a further preferred embodiment of the present invention, Figure 1-4 As shown, the loading assembly 5 includes a first opening groove 26 opened at the front end of one side of the U-shaped frame 1, and a first infrared sensor 27 of model MRT201 is installed at the lower end of the first opening groove 26. A first column bracket 30 is arranged on one side of the front end of the U-shaped frame 1 close to the first opening groove 26.

[0045] In this embodiment, material loading detection is convenient.

[0046] It should be noted that the model specification MRT201 of the infrared sensor is not the only limitation, but is selected and determined based on the actual specifications of the device, etc. The specific selection calculation method adopts the existing technology in the field, so it will not be described in detail.

[0047] The power supply and principle of the infrared sensor are clear to those skilled in the art and will not be described in detail here.

[0048] In a further preferred embodiment of the present invention, Figure 1-4As shown, the loading assembly 5 also includes a first electric push rod 31 fixedly connected to the upper end of the first column bracket 30 near the first opening groove 26, the telescopic end of the first electric push rod 31 is fixedly connected to the first push plate 32, the first push plate 32 corresponds to the first opening groove 26, and a second conveyor belt 28 is arranged flush with the front end of the first opening groove 26, and a first baffle 29 is arranged at the end of the second conveyor belt 28.

[0049] In this embodiment, it is convenient to load materials.

[0050] In a further preferred embodiment of the present invention, Figure 1 As shown, the blanking component 6 includes a second opening groove 33 respectively opened at the front and rear ends of the other side of the U-shaped frame 1, wherein a second infrared sensor 34 is installed on the lower side of the front end of the second opening groove 33 near the rear end, and a second column bracket 35 is arranged at the front end of the second opening groove 33 near the front end of the U-shaped frame 1. A second electric push rod 36 is fixedly connected to the side of the second column bracket 35 near the second opening groove 33, and a second push plate 37 is fixedly connected to the telescopic end of the second electric push rod 36.

[0051] In this embodiment, material unloading detection is facilitated.

[0052] In a further preferred embodiment of the present invention, Figure 1 As shown, the unloading assembly 6 also includes a third conveyor belt 38 arranged at the rear end of the U-shaped frame 1 close to the second opening groove 33, and a second baffle 39 is arranged at the rear end of the third conveyor belt 38.

[0053] In this embodiment, it is convenient to cut materials.

[0054] The electrical components appearing in the text are all electrically connected to the controller and the power supply. The control method of the present invention is controlled by the controller. The control circuit of the controller can be implemented by simple programming by technicians in this field. The provision of power supply is also common knowledge in this field. The present invention is mainly used to protect mechanical devices, so the present invention will no longer explain the control method and circuit connection in detail.

[0055] It should be noted that, for the above-mentioned embodiments, for the sake of simplicity, they are all described as a series of action combinations, but those skilled in the art should know that the present invention is not limited by the described order of actions, because according to the present invention, some steps may be performed in other orders or simultaneously. Secondly, those skilled in the art should also know that the embodiments described in the specification are all preferred embodiments, and the actions and modules involved are not necessarily required by the present invention.

[0056] In the several embodiments provided in the present application, it should be understood that the disclosed devices can be implemented in other ways. For example, the device embodiments described above are merely schematic, such as the division of the above-mentioned units. There may be other division methods in actual implementation, such as multiple units or components can be combined or integrated into another system, or some features can be ignored or not executed. Another point is that the mutual coupling or communication connection shown or discussed can be through some interfaces, and the indirect coupling or communication connection between devices or units can be in the form of telecommunication or other forms.

[0057] The units described above as separate components may or may not be physically separated, and the components shown as units may or may not be physical units, that is, they may be located in one place or distributed on multiple network units. Some or all of the units may be selected according to actual needs to achieve the purpose of the solution of this embodiment.

[0058] The above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit the scope of protection of the invention. Obviously, the described embodiments are only some embodiments of the present invention, rather than all embodiments. Based on these embodiments, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention. Although the present invention has been described in detail with reference to the above embodiments, ordinary technicians in this field can still combine, add, delete or make other adjustments to the features in the various embodiments of the present invention according to the circumstances without conflict, without making creative work, so as to obtain different other technical solutions that do not deviate from the concept of the present invention in essence, and these technical solutions also belong to the scope of protection of the present invention.

Claims

1. A surface treatment device for a ceramic PTC thermistor element, characterized in that: Including: A U-shaped frame (1) with an upward opening. Inside the opening end of the U-shaped frame (1), a first conveyor belt (2) is installed. Inside the U-shaped frame (1), a driving motor is installed, and the driving motor is connected to the first conveyor belt (2); A positioning component (3) is arranged inside the U-shaped frame (1). A grinding component (4) is arranged near the upper end of the positioning component (3) on the U-shaped frame (1). A feeding component (5) is arranged on one side of the U-shaped frame (1), and a discharging component (6) is arranged on the other side of the U-shaped frame (1); The grinding component (4) includes a bracket (7) detachably and fixedly connected between the front and rear sides of the upper end of the U-shaped frame (1). Two first electric telescopic rods (8) are respectively fixedly connected to the lower ends of both sides of the bracket (7).

2. A surface treatment device for a ceramic PTC thermistor element as claimed in claim 1, characterized in that: The grinding component (4) further includes a first connecting plate (9) fixedly connected to the telescopic ends of the two first electric telescopic rods (8); A second connecting plate (10) is arranged at the lower end of the first connecting plate (9); A number of first dampers (11) are installed between the first connecting plate (9) and the second connecting plate (10). A first buffer spring (12) is sleeved on each of the first dampers (11).

3. A surface treatment device for a ceramic PTC thermistor element as claimed in claim 2, characterized in that: The grinding component (4) further includes a U-shaped seat (13) with a downward opening detachably and fixedly connected to the lower end of the second connecting plate (10). A stepping motor (14) is installed on one side of the U-shaped seat (13).

4. A surface treatment device for a ceramic PTC thermistor element as claimed in claim 3, characterized in that: The grinding component (4) further includes that the output end of the stepping motor (14) passes through one side of the U-shaped seat (13) and is fixedly connected to an installation cylinder (15). The extended end of the installation cylinder (15) is rotatably connected to the other side of the U-shaped seat (13). A grinding sandpaper (16) is detachably and fixedly connected to the surface of the installation cylinder (15).

5. The surface treatment device for a ceramic PTC thermistor element according to claim 1, characterized in that: The positioning component (3) includes installation grooves (17) opened on both sides of the inner wall of the U-shaped frame (1). Second electric telescopic rods (18) are respectively fixedly connected to both sides of the inner parts of the two installation grooves (17). The telescopic ends of the four second electric telescopic rods (18) are respectively fixedly connected to connecting seats (19). One same fixing plate (23) is detachably and fixedly connected to one side of every two adjacent connecting seats (19) close to one side. Installation seats (20) are respectively detachably and fixedly connected to both ends of one side of the two fixing plates (23) close to the four connecting seats (19). A number of second dampers (21) are detachably and fixedly connected between the four installation seats (20) and the four connecting seats (19). A second buffer spring (22) is sleeved on each of the second dampers (21).

6. A surface treatment device for a ceramic PTC thermistor element as claimed in claim 5, characterized in that: The positioning component (3) further includes rotation grooves (24) opened on the mutually close sides of the two fixing plates (23). A number of positioning cylinders (25) are rotatably connected between the upper and lower ends of the two rotation grooves (24).

7. A surface treatment device for a ceramic PTC thermistor element as claimed in claim 1, characterized in that: The feeding component (5) includes a first opening groove (26) formed at the front end of one side of the C-shaped frame (1). A first infrared sensor (27) is installed at the lower end of the first opening groove (26). A first column support (30) is arranged on the front end of the C-shaped frame (1) near one side of the first opening groove (26).

8. A surface treatment device for a ceramic PTC thermistor element as claimed in claim 7, characterized in that: The feeding component (5) further includes a first electric push rod (31) fixedly connected to the upper end of the first column support (30) near one side of the first opening groove (26). The telescopic end of the first electric push rod (31) is fixedly connected to a first push plate (32). The first push plate (32) corresponds to the first opening groove (26). A second conveyor belt (28) is arranged at the front end flush with the first opening groove (26). A first baffle (29) is arranged at the end of the second conveyor belt (28).

9. The surface treatment device of a ceramic PTC thermistor element according to claim 1, characterized in that: The discharging component (6) includes second opening grooves (33) respectively formed at the front and rear ends of the other side of the C-shaped frame (1). A second infrared sensor (34) is installed at the lower side of the front end of the second opening groove (33) near the rear end. A second column support (35) is arranged at the front end of the second opening groove (33) on one side of the C-shaped frame (1) near the front end. A second electric push rod (36) is fixedly connected to the side of the second column support (35) near the second opening groove (33). The telescopic end of the second electric push rod (36) is fixedly connected to a second push plate (37).

10. The surface treatment device of a ceramic PTC thermistor element according to claim 9, characterized in that: The discharging component (6) further includes a third conveyor belt (38) arranged at the rear end of the C-shaped frame (1) near one side of the second opening groove (33). A second baffle (39) is arranged at the rear end of the third conveyor belt (38).

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