Cleaning and air-drying mechanism for PTC (Positive Temperature Coefficient) ceramic heating sheet

Abstract

The utility model discloses a cleaning and air-drying mechanism for PTC ceramic heating sheets, which comprises a cleaning unit provided with a first material channel and a high-pressure water device, the high-pressure water device is provided with a plurality of water outlets, and the high-pressure water device sprays high-pressure water flow to the first material channel in the opposite direction through the plurality of water outlets, the surface of the PTC ceramic heating sheet is covered and cleaned; the connecting unit is provided with a second material channel, and the starting end of the connecting unit is seamlessly connected with the tail end of the first material channel; and the air drying unit is provided with a third material channel and a high-pressure air device, the starting end of the third material channel is seamlessly connected with the tail end of the second material channel, the high-pressure air device is provided with a plurality of air outlets, and the high-pressure air device sprays high-pressure airflow to the third material channel in the opposite direction through the air outlets so as to achieve rapid drying of the surface of the PTC ceramic heating piece.

Description

Technical Field

[0001] This utility model relates to the field of ceramic heating element production technology, and in particular to a cleaning and drying mechanism for PTC ceramic heating elements. Background Technology

[0002] PTC ceramic heating elements are heating elements made of ceramic materials based on the positive temperature coefficient (PTC) effect. Their core characteristic is that their resistance increases significantly with increasing temperature, thus enabling self-temperature control.

[0003] After PTC ceramic heating elements are processed and formed, cleaning is a crucial step to ensure that their surfaces are clean and free of impurities, thereby guaranteeing their performance and reliability. Currently, the industry typically uses ultrasonic cleaning. However, ultrasonic cleaning can only be done offline, requires manual intervention and cannot be fully automated. Furthermore, it suffers from problems such as long cleaning time, large footprint, unsatisfactory cleaning results, and wasted resources. Utility Model Content

[0004] The technical problem to be solved by this utility model is to provide a cleaning and drying mechanism for PTC ceramic heating elements, which can achieve automated, efficient, and low-energy cleaning and drying during the cleaning process of PTC ceramic heating elements.

[0005] The technical solution adopted by this utility model to solve its technical problem is: a cleaning and drying mechanism for PTC ceramic heating elements is provided, which includes:

[0006] The cleaning unit is equipped with a first material channel and a high-pressure water device. The high-pressure water device is provided with a plurality of water outlets, which are arranged on the left and right sides of the first material channel along the moving direction of the first material channel. The high-pressure water device sprays high-pressure water into the first material channel through the water outlets to form a comprehensive cleaning of the surface of the PTC ceramic heating element.

[0007] A connecting unit is provided with a second material channel; the starting end of the second material channel is seamlessly connected to the ending end of the first material channel.

[0008] The drying unit includes a third material channel and a high-pressure air device. The starting end of the third material channel is seamlessly connected to the end of the second material channel. The high-pressure air device is equipped with several air outlets, which are arranged on the left and right sides of the third material channel along the moving direction of the third material channel. The high-pressure air device sprays high-pressure airflow into the third material channel through the air outlets to achieve rapid drying of the surface of the PTC ceramic heating element.

[0009] The axes of the first material channel, the second material channel, and the third material channel are collinear, forming a continuous transmission path.

[0010] Furthermore, several PTC ceramic heating elements are sequentially introduced into the first material channel by the power of the material discharged from the previous process. In the first material channel, the second material channel, and the third material channel, the PTC ceramic heating elements that enter later push the PTC ceramic heating elements that have already entered along the channel direction through contact thrust.

[0011] Furthermore, a base plate is provided below the first material channel, the second material channel, and the third material channel, and the PTC ceramic heating element moves along the upper surface of the base plate; the surface roughness Ra of the upper surface of the base plate is ≤1.0μm.

[0012] Furthermore, the connecting unit is provided with an openable and closable transparent cover.

[0013] Furthermore, the diameter of the water outlet is between 0.8 mm and 1.2 mm, and the diameter of the air outlet is between 0.8 mm and 1.2 mm.

[0014] Furthermore, the first material channel is formed by two first solid components spaced apart, each of which is provided with a water pipe of the cleaning unit, and the first solid component has a hole on the side pointing towards the first material channel that communicates with the water pipe to form the water outlet.

[0015] Furthermore, the first physical component also has a first limiting boss and a second limiting boss formed on the side pointing towards the first material channel.

[0016] The first limiting boss and the second limiting boss respectively limit the lower and upper regions of the PTC ceramic heating element in the first material channel to ensure that the PTC ceramic heating element remains vertical and does not deviate when moving in the first material channel.

[0017] Furthermore, the second material channel is formed by two second solid components spaced apart.

[0018] Furthermore, the third material channel is formed by two third solid components spaced apart, each of which is provided with an air passage pipe of the drying unit, and each third solid component has a hole on the side pointing towards the third material channel that communicates with the air passage pipe to form the air outlet.

[0019] Furthermore, the third physical component also has a third limiting boss and a fourth limiting boss on the side pointing towards the third material channel;

[0020] The third limiting boss and the fourth limiting boss respectively limit the lower and upper regions of the PTC ceramic heating element in the third material channel to ensure that the PTC ceramic heating element remains vertical and does not deviate when moving in the third material channel.

[0021] The beneficial effects of this utility model are as follows:

[0022] During operation, several PTC ceramic heating elements enter the first material channel in sequence by the power of the material discharged from the previous process. In the first, second, and third material channels, the PTC ceramic heating elements that enter later push the PTC ceramic heating elements that have already entered in front of them to move continuously along the channel direction through contact thrust, thereby forming the continuous automatic movement of PTC ceramic heating elements.

[0023] During the movement, when passing through the first material channel, high-pressure water jets are sprayed from the outlets on both sides of the channel to cover and clean the surface of the PTC ceramic heating element; when passing through the second material channel, staff can observe the PTC ceramic heating element for any abnormalities through a transparent cover and remove the PTC ceramic heating element for size measurement; when passing through the third material channel, high-pressure airflow is sprayed from the air outlets on both sides of the channel to achieve rapid drying of the PTC ceramic heating element.

[0024] As can be seen, the entire process is automated and requires no human intervention. Furthermore, the cleaning process is completed along the path of the material moving from the previous process to the next, so it does not take up extra time or increase the floor space. The cleaning and drying process has the advantages of high efficiency and low energy consumption. Attached Figure Description

[0025] Figure 1 This is an overall structural diagram of the cleaning and drying mechanism provided by this utility model;

[0026] Figure 2 It is Figure 1 The view after the transparent mask is hidden;

[0027] Figure 3 yes Figure 2 Top view;

[0028] Figure 4 yes Figure 3 Sectional view along line AA;

[0029] Figure 5 yes Figure 3 Sectional view along the BB direction;

[0030] Figure 6 yes Figure 3 Sectional view along the CC direction. Detailed Implementation

[0031] The present invention will be further described in detail below with reference to specific embodiments, but the implementation of the present invention is not limited thereto.

[0032] See Figures 1 to 6 This utility model provides a cleaning and drying mechanism for PTC ceramic heating elements, which includes a cleaning unit 100, a connecting unit 200 and a drying unit 300.

[0033] The cleaning unit 100 is provided with a first material channel 110 and a high-pressure water device (not shown in the figure). The high-pressure water device is equipped with a plurality of water outlets 122, which are arranged on the left and right sides of the first material channel 110 along the moving direction of the first material channel 110. The high-pressure water device sprays high-pressure water jets into the first material channel 110 through the water outlets 122 to form a comprehensive cleaning of the surface of the PTC ceramic heating element.

[0034] The connecting unit 200 is provided with a second material channel 210, the starting end of the second material channel 210 being seamlessly connected to the end of the first material channel 110.

[0035] The drying unit 300 is equipped with a third material channel 310 and a high-pressure air device (not shown in the figure). The starting end of the third material channel 310 is seamlessly connected to the end of the second material channel 210. The high-pressure air device is equipped with a plurality of air outlets 322, which are arranged on the left and right sides of the third material channel 310 along the moving direction of the third material channel 310. The high-pressure air device sprays high-pressure airflow into the third material channel 310 through the air outlets 322 to achieve rapid drying of the surface of the PTC ceramic heating element.

[0036] The axes of the first material channel 110, the second material channel 210, and the third material channel 310 are collinear, forming a continuous transmission path. One end of the third material channel 310 is connected to a drying discharge device 900, allowing the cleaned and dried PTC ceramic heating elements to enter the subsequent conveyor belt and then be sent to the next process.

[0037] In this invention, a base plate 400 is provided below the first material channel 110, the second material channel 210, and the third material channel 310. See details below. Figures 4 to 6 The bottom plate 400 is provided with a boss 410 that is embedded in the bottom of the three channels. The PTC ceramic heating element a moves along the upper surface of the boss 410. The surface roughness Ra of the upper surface of the boss 410 is ≤1.0μm to ensure that the PTC ceramic heating element a is not damaged during the transmission process.

[0038] Further, see Figure 1 and Figure 2 The bottom support plate 400 is fixed on several support plates 500. The several support plates 500 are arranged in sequence at intervals along the conveying direction of the material channel, and each support plate 500 is fixed on the upper surface of a frame 600.

[0039] During operation, several PTC ceramic heating elements a enter the first material channel 110 sequentially through the power of the material discharged from the previous process. In the first material channel 110, the second material channel 210 and the third material channel 310, the PTC ceramic heating elements a that enter later push the PTC ceramic heating elements a that have already entered in front of them to move continuously along the channel direction through contact thrust, thereby forming the continuous automatic movement of the PTC ceramic heating elements.

[0040] In a preferred embodiment, the covering height of the connecting unit 200 over the PTC ceramic heating element a is lower than that of the cleaning unit 100 and the drying unit 300. At the same time, the top of the connecting unit 200 is also provided with an openable transparent cover 220.

[0041] The advantages of setting the above-mentioned openable transparent cover 220 in the connecting unit 200 are as follows: (1) It is possible to observe from the outside whether there is any abnormality in the PTC ceramic heating element a in the second material channel 210; (2) Since the transparent cover 220 is openable, it is necessary to open the transparent cover 220 and then take out the PTC ceramic heating element a for size measurement.

[0042] The opening and closing of the transparent cover 220 can be achieved in the following ways: (1) by hinged one side to the connecting unit 200 and the other side can be rotated around the hinge axis; (2) by snapping it on the top of the connecting unit 200 through a snap-fit ​​structure.

[0043] (3) It is placed directly on top of the connecting unit 200 in a non-clamping manner.

[0044] In a preferred embodiment, see Figure 4 The first material channel 110 is formed by two first solid parts 1a spaced apart. Each of the two first solid parts 1a is provided with a water pipe 121 of the cleaning unit 100. The first solid part 1a has a hole on its side facing the first material channel 110 that communicates with the water pipe 121, forming the water outlet 122. The high-pressure water device also includes a high-pressure water pump (not shown in the figure) and a corresponding water hose (not shown in the figure). The water hose passes through an inlet 1a3 located at the top of the first solid part 1a (see...). Figure 1 and Figure 2It is connected to the water pipe 121. During operation, the high-pressure water pump starts, and the water hose supplies water to the water pipe 121 of the two first physical components 1a. Then, high-pressure water jets are sprayed in opposite directions through the outlets 122 on both sides of the first material channel 110, thereby covering and cleaning the surface of the PTC ceramic heating element a.

[0045] Additionally, see Figure 4 The first physical component 1a also has a first limiting boss 1a1 and a second limiting boss 1a2 formed on the side pointing towards the first material channel 110. The first limiting boss 1a1 and the second limiting boss 1a2 respectively limit the lower and upper regions of the PTC ceramic heating element a in the first material channel 110 to ensure that the PTC ceramic heating element a remains vertical and does not deviate when moving in the first material channel 110. A recessed area is formed between the first limiting boss 1a1 and the second limiting boss 1a2 to avoid forming an excessively large contact area with the PTC ceramic heating element a, which would hinder its movement.

[0046] In a preferred embodiment, see Figure 5 The second material channel 210 is formed by two second solid members 2a spaced apart. The second solid members 2a are relatively short and only restrict the lower region of the PTC ceramic heating element a.

[0047] In a preferred embodiment, see Figure 6 The third material channel 310 is formed by two third solid parts 3a spaced apart. Each of the two third solid parts 3a is provided with an air passage 321 of the drying unit 300. The third solid part 3a has a hole on its side pointing towards the third material channel 310 that communicates with the air passage 321, forming the air outlet 322. The high-pressure air device also includes a high-pressure air pump (not shown in the figure) and a corresponding air passage hose (not shown in the figure). This air passage hose passes through an air inlet 3a3 located at the top of the third solid part 3a (see...). Figure 1 and Figure 2 It is connected to the air passage 321. During operation, the high-pressure air pump is started, and the air passage hose supplies air to the air passage 321 of the two third physical components 3a. Then, high-pressure airflow is sprayed in opposite directions through the air outlets 322 on both sides of the third material passage 310, thereby drying the PTC ceramic heating element a after it has been washed with water.

[0048] Additionally, see Figure 6The third entity 3a also has a third limiting boss 3a1 and a fourth limiting boss 3a2 formed on the side pointing towards the third material channel 310. The third limiting boss 3a1 and the fourth limiting boss 3a2 respectively limit the lower and upper regions of the PTC ceramic heating element a in the third material channel 310 to ensure that the PTC ceramic heating element a remains vertical and does not deviate when moving in the third material channel 310. A recessed area is formed between the third limiting boss 3a1 and the fourth limiting boss 3a2 to avoid forming an excessive contact area with the PTC ceramic heating element a and hindering its movement.

[0049] Typically, the diameter of the water outlet 122 is between 0.8 mm and 1.2 mm to facilitate the formation of a high-pressure water flow. The diameter of the air outlet 322 is between 0.8 mm and 1.2 mm to facilitate the formation of a high-pressure airflow. Preferably, the diameter of the water outlet 122 is approximately 1 mm, and the diameter of the air outlet 322 is also approximately 1 mm.

[0050] During operation, as the PTC ceramic heating element a moves through the first material channel 110, high-pressure water jets are sprayed from the outlets 122 on both sides of the channel to cover and clean the surface of the PTC ceramic heating element a. When it passes through the second material channel 210, the operator can observe the PTC ceramic heating element a for any abnormalities through the transparent cover 220 and, if necessary, remove the PTC ceramic heating element a for dimensional measurement. When it passes through the third material channel 310, high-pressure airflow is sprayed from the air outlets 322 on both sides of the channel to quickly dry the PTC ceramic heating element a.

[0051] As can be seen, the entire process is automated. The PTC ceramic heating element a (referred to as material) enters the first material channel 110 sequentially using the power from the material discharged from the previous process. Subsequently, the material entering later pushes the previous material forward. The entire process requires no manual intervention. Furthermore, the cleaning process is completed along the path of the material moving from the previous process to the next, so it does not take up extra time or increase the floor space. The cleaning and drying process has the advantages of high efficiency and low energy consumption.

[0052] The above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Various modifications and variations can be made to this utility model by those skilled in the art. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A cleaning and drying mechanism for PTC ceramic heating elements, characterized in that, include: A cleaning unit (100) is provided with a first material channel (110) and a high-pressure water device; the high-pressure water device is equipped with a plurality of water outlets (122), which are arranged on the left and right sides of the first material channel (110) along the moving direction of the first material channel (110); the high-pressure water device sprays high-pressure water into the first material channel (110) through the water outlets (122) to form a covering cleaning of the surface of the PTC ceramic heating element; A connecting unit (200) is provided with a second material channel (210); the starting end of the second material channel (210) is seamlessly connected to the end of the first material channel (110); A drying unit (300) is provided with a third material channel (310) and a high-pressure air device; the starting end of the third material channel (310) is seamlessly connected to the end of the second material channel (210); the high-pressure air device is equipped with a plurality of air outlets (322), which are arranged on the left and right sides of the third material channel (310) along the moving direction of the third material channel (310); the high-pressure air device sprays high-pressure airflow into the third material channel (310) through the air outlets (322) to achieve rapid drying of the surface of the PTC ceramic heating element; The axes of the first material channel (110), the second material channel (210), and the third material channel (310) are collinear, forming a continuous transmission path.

2. The cleaning and drying mechanism for PTC ceramic heating elements according to claim 1, characterized in that, A number of PTC ceramic heating elements are sequentially introduced into the first material channel (110) by the power of the material discharged from the previous process. In the first material channel (110), the second material channel (210) and the third material channel (310), the PTC ceramic heating elements that enter later are pushed by the contact thrust to move the PTC ceramic heating elements that have entered in front continuously along the channel direction.

3. The cleaning and drying mechanism for PTC ceramic heating elements according to claim 1, characterized in that, A base plate (400) is provided below the first material channel (110), the second material channel (210) and the third material channel (310), and the PTC ceramic heating element moves along the upper surface of the base plate (400); the surface roughness Ra of the upper surface of the base plate (400) is ≤1.0μm.

4. The cleaning and drying mechanism for PTC ceramic heating elements according to claim 1, characterized in that, The connecting unit (200) is provided with an openable and closable transparent cover (220).

5. A cleaning and drying mechanism for PTC ceramic heating elements according to claim 1, characterized in that, The diameter of the water outlet (122) is between 0.8 mm and 1.2 mm, and the diameter of the air outlet (322) is between 0.8 mm and 1.2 mm.

6. A cleaning and drying mechanism for PTC ceramic heating elements according to claim 1, characterized in that, The first material channel (110) is formed by two first solid parts (1a) spaced apart. Each of the two first solid parts (1a) is provided with a water pipe (121) of the cleaning unit (100). The first solid part (1a) has a hole on the side pointing to the first material channel (110) that communicates with the water pipe (121) to form the water outlet (122).

7. A cleaning and drying mechanism for PTC ceramic heating elements according to claim 6, characterized in that, The first physical component (1a) also has a first limiting boss (1a1) and a second limiting boss (1a2) on the side pointing towards the first material channel (110); The first limiting boss (1a1) and the second limiting boss (1a2) respectively limit the lower and upper regions of the PTC ceramic heating element in the first material channel (110) to ensure that the PTC ceramic heating element remains vertical and does not deviate when it moves in the first material channel (110).

8. A cleaning and drying mechanism for PTC ceramic heating elements according to claim 1, characterized in that, The second material channel (210) is formed by two second solid parts (2a) spaced apart.

9. A cleaning and drying mechanism for PTC ceramic heating elements according to claim 1, characterized in that, The third material channel (310) is formed by two third solid parts (3a) spaced apart. Each of the two third solid parts (3a) is provided with an air passage pipe (321) of the drying unit (300). The third solid part (3a) has a hole on the side pointing to the third material channel (310) that communicates with the air passage pipe (321) to form the air outlet (322).

10. A cleaning and drying mechanism for PTC ceramic heating elements according to claim 9, characterized in that, The third entity (3a) also has a third limiting boss (3a1) and a fourth limiting boss (3a2) on the side pointing towards the third material channel (310); The third limiting boss (3a1) and the fourth limiting boss (3a2) respectively limit the lower and upper regions of the PTC ceramic heating element in the third material channel (310) to ensure that the PTC ceramic heating element remains vertical and does not deviate when moving in the third material channel (310).

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