An automatic wafer aligner for quartz crystal
By introducing an automatic vibrating and centralized collection mechanism into the automatic stacking machine, the problems of easy damage to quartz crystals and inconvenient handling of defective products are solved, and the functions of automatic vibrating and centralized collection are realized.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- ZHUHAI DONGJINGDA ELECTRONIC TECH CO LTD
- Filing Date
- 2025-07-30
- Publication Date
- 2026-07-10
AI Technical Summary
Existing automatic stacking machines require manual shaking of the material and are inconvenient for collecting defective products, resulting in easy damage and inconvenience in handling quartz crystals.
An automatic sheet feeding machine was designed, which includes an automatic vibrating material mechanism and a centralized collection mechanism. It utilizes an electric push rod and an air pump system to achieve automatic vibrating material and centralized collection of defective products.
It enables automatic vibration of quartz crystals, avoiding stacking, and can automatically collect defective products for centralized processing, reducing manual operation.
Smart Images

Figure CN224477515U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of quartz crystal processing technology, specifically to an automatic stacking machine for quartz crystals. Background Technology
[0002] Quartz crystal resonators are piezoelectric devices made of piezoelectric quartz (i.e., crystal). They not only have highly stable physical and chemical properties, but also have extremely low elastic vibration loss. Compared with other electronic components, piezoelectric quartz crystals also have high frequency stability and high Q value, making them important components for stabilizing and selecting frequencies. In the process of quartz crystal manufacturing, an automatic stacking machine for quartz crystals is required.
[0003] Existing automatic wafer sorting machines rely on manual sorting by operators. Due to the delicate nature of quartz wafers, they are easily damaged during this process, leading to unnecessary losses. Furthermore, existing automatic wafer sorting machines typically require manual vibration of the quartz crystals, making it inconvenient to vibrate the crystals on the surface of the wafer plate, potentially causing them to stack. This also necessitates manual vibration. In addition, existing automatic wafer sorting machines are inconvenient for collecting defective products, hindering the user's ability to centrally process and process them. Utility Model Content
[0004] The purpose of this invention is to provide an automatic stacking machine for quartz crystals, in order to solve the problems mentioned in the background art, which usually require manual shaking of quartz crystals and are inconvenient for centralized collection of defective products.
[0005] To achieve the above objectives, this utility model provides the following technical solution: an automatic stacking machine for quartz crystals, comprising a stacking machine body, dust screens installed on the surface of the stacking machine body, a controller installed on the surface of the stacking machine body, a support frame installed on the inner wall of the stacking machine body, a fixing frame installed on the inner wall of the support frame, a detection camera installed on the inner wall of the stacking machine body, a support base plate installed on the inner wall of the stacking machine body, a frame plate arranged above the support base plate, a material plate body arranged above the frame plate, a centralized collection mechanism provided on the surface of the fixing frame, and an automatic vibration mechanism provided on the surfaces of the frame plate and the material plate body.
[0006] Preferably, the surface of the film sorting machine body is provided with a door, which rotates with the surface of the film sorting machine body. Two camera bodies are mounted on the surface of each support frame via screws. A second air pump, a first air pump, a fourth air pump, and a third air pump are mounted on the surface of the fixed frame. The third and fourth air pumps form a group, and the fixed frame and the second air pump form a group. A guide rod is mounted on the surface of the fixed frame, and the guide rod slides with the surfaces of the first, second, third, and fourth air pumps respectively. Motors are mounted on the surfaces of each of the first, second, third, and fourth air pumps via screws. The input end of the motor is electrically connected to the output end of the controller. The output end of the motor is equipped with a rotating shaft via a coupling, and a suction nozzle is installed on the surface at the bottom of the rotating shaft. The suction nozzle is connected to the first, second, third, and fourth air pumps via pipes. There are two support base plates, frame plates, and material plate bodies. The support base plates, frame plates, and material plate bodies are located directly below the camera body. Cooling fans are installed on the inner wall of the film sorting machine body. A box is installed on the inner wall of the film sorting machine body. Support blocks are installed on the inner wall of the box. A material plate clamp is placed on the surface at the top of the support block. An upper plate assembly is installed on the inner wall of the film sorting machine body. Air outlets are installed on the surface of the fixing frame. The air outlets are located behind the suction nozzles.
[0007] Preferably, the centralized collection mechanism consists of a fixing block, a positioning slot, a positioning block, a connecting block, a fixing groove, and a collection frame. The surface of the fixing frame is provided with a collection frame for collecting defective products. The collection frames are located below the first air pump, the second air pump, the third air pump, and the fourth air pump, respectively. The surface of the collection frame is equipped with a connecting block.
[0008] Preferably, the surface of the fixing frame is provided with fixing grooves, one end of the connecting block extends into the interior of the fixing groove, a positioning block is installed on the surface at the bottom of the connecting block, a fixing block is installed on the inner wall of the fixing groove, the fixing block is located below the connecting block, the surface of the fixing block is provided with a positioning slot, and the positioning slot and the surface of the positioning block are engaged with each other.
[0009] Preferably, the automatic vibrating material mechanism consists of an electric push rod, a holding groove, a slider, and a base. The base is installed on the surface of the bottom of the material plate body, the holding groove is opened on the surface of the frame plate, the slider is provided inside the holding groove, the slider and the surface of the holding groove slide against each other, and the surface of the slider is fixed to the surface of the bottom of the base.
[0010] Preferably, an electric push rod is installed on the inner wall of the holding tank. The input end of the electric push rod is electrically connected to the output end of the controller, and the output end of the electric push rod is fixed to the surface of the slider.
[0011] Compared with the prior art, the beneficial effects of this utility model are: the automatic stacking machine for quartz crystals not only enables the automatic stacking machine to vibrate the quartz crystals on the surface of the material plate body to avoid the stacking of quartz crystals, but also eliminates the need for manual vibration operation. In addition, the automatic stacking machine can collect the detected defective products together, making it convenient for users to centrally process the defective products.
[0012] 1. By setting up an automatic vibrating mechanism, the electric push rod inside the holding tank is controlled to work. Under the action of the electric push rod, the slider moves inside the holding tank. When the slider moves, it drives the base and the material plate body to move, so that the material plate body moves on the surface of the frame plate, thereby causing the material plate body to vibrate on the surface of the frame plate, and performing vibration treatment on the quartz crystals on the surface of the material plate body. This realizes the automatic vibration function of the automatic sheet stacking machine, so that the automatic sheet stacking machine can vibrate the quartz crystals on the surface of the material plate body during use, avoiding the phenomenon of stacking between quartz crystals. At the same time, no manual vibration operation is required.
[0013] 2. By setting up a centralized collection mechanism, defective products are collected centrally under the action of the collection frame. Then, the air outlet works, ensuring that the quartz crystal on the surface of the suction nozzle falls smoothly into the inside of the collection frame. The user pulls the collection frame upward, causing the collection frame to slide the connecting block inside the fixed groove. The connecting block moves the positioning block away from the inside of the positioning slot. The user then pulls the collection frame outward, causing the collection frame to move the connecting block away from the inside of the fixed groove, removing the collection frame from the surface of the fixed frame. The defective products inside the collection frame are then processed. This realizes the function of centralized collection of defective products by the automatic film sorting machine, so that the automatic film sorting machine can collect the detected defective products together, making it convenient for users to centrally process the defective products. Attached Figure Description
[0014] Figure 1 This is a three-dimensional structural diagram of the present invention;
[0015] Figure 2 This is a schematic diagram of the front cross-sectional structure of this utility model;
[0016] Figure 3 This is an enlarged side view sectional diagram of the present invention;
[0017] Figure 4 For the present utility model Figure 3 A magnified schematic diagram of the central collection mechanism;
[0018] Figure 5 For the present utility model Figure 3 An enlarged schematic diagram of the automatic vibrating material feeding mechanism.
[0019] In the diagram: 1. Slicing machine body; 101. Controller; 102. Door; 103. Dust screen; 104. Detection camera; 105. Material plate body; 106. Motor; 107. First air pump; 108. Fixing frame; 109. Second air pump; 110. Support frame; 111. Camera body; 112. Third air pump; 113. Fourth air pump; 114. Shelf plate; 115. Support base plate; 116. 1. Cooling fan; 117. Guide rod; 118. Box body; 119. Support block; 120. Material plate clamp; 121. Upper plate assembly; 122. Air outlet; 2. Centralized collection mechanism; 21. Fixing block; 22. Positioning slot; 23. Positioning block; 24. Connecting block; 25. Fixing groove; 26. Collection frame; 3. Automatic vibrating material mechanism; 31. Electric push rod; 32. Container trough; 33. Slider; 34. Base. Detailed Implementation
[0020] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, not all embodiments. In addition, the terms "first", "second", "third", "upper", "lower", "left", "right", etc. are used for descriptive purposes only and should not be construed as indicating or implying relative importance. At the same time, in the description of the present utility model, unless otherwise explicitly specified and limited, the terms "connected" and "linked" should be interpreted broadly. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium. Based on the embodiments of the present utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present utility model.
[0021] The present invention provides an automatic crystal stacking machine for quartz crystals, as shown in the following structure. Figure 1 and Figure 2As shown, the device includes a film sorting machine body 1. Dust filters 103 are installed on the surface of the film sorting machine body 1. A controller 101 (e.g., LA series) is installed on the surface of the film sorting machine body 1. A door 102 is provided on the surface of the film sorting machine body 1, and the door 102 rotates with the surface of the film sorting machine body 1. A support frame 110 is installed on the inner wall of the film sorting machine body 1. A fixing frame 108 is installed on the inner wall of the support frame 110. Two camera bodies 111 are installed on the surface of the support frame 110 using screws. A second air pump 109 (e.g., YX series) is installed on the surface of the fixing frame 108. A first air pump 107, which can be a YX series model, is mounted on the surface of the mounting bracket 108. A fourth air pump 113, which can also be a YX series model, is mounted on the surface of the mounting bracket 108. A third air pump 112, which can also be a YX series model, is mounted on the surface of the mounting bracket 108. The third air pump 112 and the fourth air pump 113 form a group. The mounting bracket 108 and the second air pump 109 form a group. A guide rod 117 is mounted on the surface of the mounting bracket 108. The guide rod 117 slides in contact with the surfaces of the first air pump 107, the second air pump 109, the third air pump 112, and the fourth air pump 113. 07. Motors 106 are screwed onto the surfaces of the second air pump 109, the third air pump 112, and the fourth air pump 113. The motors 106 can be of the JO series. The input terminal of the motor 106 is electrically connected to the output terminal of the controller 101. A rotating shaft is mounted on the output terminal of the motor 106 via a coupling. A suction nozzle is mounted on the surface at the bottom of the rotating shaft, and the suction nozzle is connected to the first air pump 107, the second air pump 109, the third air pump 112, and the fourth air pump 113 via pipes. A detection camera 104 is installed on the inner wall of the film sorting machine body 1, and a support base plate 115 is installed on the inner wall of each film sorting machine body 1. A frame plate is installed above the support base plate 115. 114. A material plate body 105 is arranged above the frame plate 114. There are two supporting base plates 115, frame plates 114, and material plate bodies 105. The supporting base plates 115, frame plates 114, and material plate bodies 105 are located directly below the camera body 111. Cooling fans 116 are installed on the inner walls of the film sorting machine body 1. A housing 118 is installed on the inner wall of the film sorting machine body 1. Support blocks 119 are installed on the inner walls of the housing 118. A material plate clamp 120 is placed on the surface of the top position of the support block 119. An upper plate assembly 121 is installed on the inner wall of the film sorting machine body 1. Air nozzles 122 are installed on the surface of the fixing frame 108. The air nozzles 122 are located behind the suction nozzle. The installation method of the motor 106 and the rotating shaft, and the rotating shaft and suction nozzle are existing technologies and will not be described in detail here.
[0022] Furthermore, such as Figure 3 and Figure 4 As shown, the surface of the fixing frame 108 is provided with a centralized collection mechanism 2. The centralized collection mechanism 2 is composed of a fixing block 21, a positioning slot 22, a positioning block 23, a connecting block 24, a fixing groove 25, and a collection frame 26. The surface of the fixing frame 108 is provided with a collection frame 26 for collecting defective products. The collection frame 26 is located below the first air pump 107, the second air pump 109, the third air pump 112, and the fourth air pump 113, respectively. The surface of the collection frame 26 is equipped with a connecting block 24. The surface of the fixing frame 108 is provided with a fixing groove 25. One end of the connecting block 24 extends into the interior of the fixing groove 25. The surface of the connecting block 24 is equipped with a positioning block 23. The inner wall of the fixing groove 25 is equipped with a fixing block 21. The fixing block 21 is located below the connecting block 24. The surface of the fixing block 21 is provided with a positioning slot 22. The positioning slot 22 and the surface of the positioning block 23 are engaged with each other.
[0023] During implementation, defective quartz crystals automatically fall into the collection frame 26 under the action of gravity. The collection frame 26 collects the defective products. Then, the air outlet 122 works to ensure that the quartz crystals on the suction nozzle surface fall smoothly into the collection frame 26. The user pulls the collection frame 26 upward, causing the connecting block 24 to slide inside the fixing groove 25. The connecting block 24 moves the positioning block 23 away from the inside of the positioning groove 22. The user then pulls the collection frame 26 outward, causing the connecting block 24 to move away from the inside of the fixing groove 25, and removes the collection frame 26 from the surface of the fixing frame 108. The defective products inside the collection frame 26 are then processed to realize the function of automatic sheet stacking machine for centralized collection of defective products.
[0024] Furthermore, such as Figure 3 and Figure 5 As shown, the surfaces of the frame plate 114 and the material plate body 105 are provided with an automatic vibrating mechanism 3. The automatic vibrating mechanism 3 consists of an electric push rod 31, a holding groove 32, a slider 33, and a base 34. The base 34 is installed on the surface of the bottom position of the material plate body 105. The surface of the frame plate 114 has a holding groove 32. The slider 33 is installed inside the holding groove 32. The slider 33 and the surface of the holding groove 32 slide against each other. The surface of the slider 33 is fixed to the surface of the bottom position of the base 34. The electric push rod 31 is installed on the inner wall of the holding groove 32. The model of the electric push rod 31 can be selected from the DG series. The input end of the electric push rod 31 is electrically connected to the output end of the controller 101. The output end of the electric push rod 31 is fixed to the surface of the slider 33.
[0025] During implementation, the user needs to vibrate the quartz crystals on the surface of the material plate body 105 to ensure that the quartz crystals are evenly distributed on the surface of the material plate body 105. The existing vibration method is manually operated. The user operates the controller 101, which controls the electric push rod 31 inside the holding tank 32 to work. Under the action of the electric push rod 31, the slider 33 is driven to slide inside the holding tank 32. When the slider 33 moves, the slider 33 drives the base 34 and the material plate body 105 to move, so that the material plate body 105 moves on the surface of the frame plate 114, thereby causing the material plate body 105 to vibrate on the surface of the frame plate 114, thus performing vibration treatment on the surface of the quartz crystals on the material plate body 105 to realize the automatic vibration function of the automatic stacking machine.
[0026] Working principle: In use, first place the sheet-laying machine body 1 in the designated position. The user opens the door 102 and places the quartz crystals to be tested on the surface of the material plate body 105. Under the action of the camera body 111 on the surface of the support frame 110, the crystals on the surface of the material plate body 105 are photographed. The photographing results are displayed on the surface of the controller 101. Subsequently, the controller 101 controls the first air pump 107, the second air pump 109, the third air pump 112, and the fourth air pump 113 to slide on the surface of the fixed frame 108. Under the action of the guide rod 117, the first air pump 109 slides on the surface of the fixed frame 108. 07. The second air pump 109, the third air pump 112, and the fourth air pump 113 guide the first air pump 107, the second air pump 109, the third air pump 112, and the fourth air pump 113 to drive the motor 106 to move above the material plate body 105. During this process, the photoelectric sensor (not shown in the diagram) senses and positions the quartz crystals. Under the action of the suction nozzle on the surface of the motor 106, the quartz crystals on the surface of the material plate body 105 are picked up. Subsequently, the material plate clamp 120 inside the housing 118 is removed from the surface of the support block 119 and placed on the upper plate assembly 12. At the designated position 1, the picked-up quartz crystals move to above the detection camera 104. Under the action of the detection camera 104, the appearance, angle, and size of the quartz crystals are detected. Since the first air pump 107 and the second air pump 109 are a group, and the third air pump 112 and the fourth air pump 113 are a group, the number of quartz crystals picked up each time is four, with two picked up from each group, making the detection and arrangement efficiency higher. The detection results and the distribution map of the quartz crystals are displayed on the surface of the controller 101. When the detection camera 104 detects the quartz crystals on the surface of the nozzle... When the angle of the crystal does not meet the requirements, the controller 101 controls the motor 106 to work. The motor 106 drives the suction nozzle to rotate through the shaft, thereby adjusting the angle of the quartz crystal to the required angle. The quartz crystal that meets the requirements is placed on the surface of the material plate clamp 120 on the surface of the upper plate assembly 121 after being detected by the detection camera 104. The quartz crystal is automatically arranged. The cooling fan 116 and the dust screen 103 dissipate heat inside the sheet arrangement machine body 1. The dust screen 103 prevents dust from entering the interior of the sheet arrangement machine body 1 through the dust screen 103.
[0027] Subsequently, the user needs to vibrate the quartz crystals on the surface of the material plate body 105 to ensure that the quartz crystals are evenly distributed on the surface of the material plate body 105. The existing vibration method is manually operated. The user operates the controller 101, which controls the electric push rod 31 inside the holding tank 32 to work. Under the action of the electric push rod 31, the slider 33 is driven to slide inside the holding tank 32. When the slider 33 moves, the slider 33 drives the base 34 and the material plate body 105 to move, so that the material plate body 105 moves on the surface of the frame plate 114, thereby causing the material plate body 105 to vibrate on the surface of the frame plate 114, thus vibrating the quartz crystals on the surface of the material plate body 105 to achieve the automatic vibration function of the automatic stacking machine. This allows the automatic stacking machine to vibrate the quartz crystals on the surface of the material plate body 105 during use, avoiding the phenomenon of stacking between quartz crystals, and eliminating the need for manual vibration operation.
[0028] Subsequently, the defective quartz crystals, propelled by the first air pump 107, the second air pump 109, the third air pump 112, and the fourth air pump 113, move to the top of the collection frame 26. The solenoid valve on the suction nozzle (not shown in the diagram) closes to stop adsorbing the quartz crystals. The defective quartz crystals automatically fall into the collection frame 26 under gravity, where they are collected. Then, the air outlet 122 operates, ensuring that the quartz crystals on the suction nozzle surface fall smoothly into the collection frame 26. The user pulls the collection frame 26 upwards, causing the connecting block 24 to slide inside the fixing groove 25. The connecting block 24 moves the positioning block 23 away from the positioning groove 22. The user then pulls the collection frame 26 outwards, allowing the collection to... The frame 26 moves the connecting block 24 away from the inside of the fixing groove 25, removing the collection frame 26 from the surface of the fixing frame 108. Defective products inside the collection frame 26 are then processed. Subsequently, the cleaned collection frame 26 is placed on the surface of the fixing frame 108, causing the collection frame 26 to move the connecting block 24 into the inside of the fixing groove 25. The connecting block 24 drives the positioning card block 23 to automatically engage with the positioning card slot 22, allowing the connecting block 24 to be installed on the surface of the fixing block 21. This allows the collection frame 26 to be installed on the surface of the fixing frame 108, continuing to collect defective products. This achieves the function of centralized collection of defective products by the automatic film sorting machine, enabling the automatic film sorting machine to collect detected defective products together during use, facilitating centralized processing of defective products by the user, and ultimately completing the operation of the automatic film sorting machine.
[0029] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.
Claims
1. An automatic stacking machine for quartz crystals, comprising a stacking machine body (1), characterized in that: The surface of the sheet-laying machine body (1) is equipped with a dustproof net (103), the surface of the sheet-laying machine body (1) is equipped with a controller (101), the inner wall of the sheet-laying machine body (1) is equipped with a support frame (110), the inner wall of the support frame (110) is equipped with a fixing frame (108), the inner wall of the sheet-laying machine body (1) is equipped with a detection camera (104), the inner wall of the sheet-laying machine body (1) is equipped with a support base plate (115), a frame plate (114) is provided above the support base plate (115), a material plate body (105) is provided above the frame plate (114), the surface of the fixing frame (108) is equipped with a centralized collection mechanism (2), and the surfaces of the frame plate (114) and the material plate body (105) are equipped with an automatic vibrating material mechanism (3).
2. An automatic stacking machine for quartz crystals according to claim 1, characterized in that: The surface of the film sorting machine body (1) is provided with a door (102), and the door (102) rotates with the surface of the film sorting machine body (1). The surface of the support frame (110) is fitted with camera bodies (111) by screws. There are two camera bodies (111). The surface of the fixing frame (108) is fitted with a second air pump (109), a first air pump (107), a fourth air pump (113), and a fifth air pump (114). A three-pump assembly (112), wherein the third pump (112) and the fourth pump (113) form a group, and the fixing frame (108) and the second pump (109) form a group. A guide rod (117) is mounted on the surface of the fixing frame (108), and the guide rod (117) slides in contact with the surfaces of the first pump (107), the second pump (109), the third pump (112), and the fourth pump (113). The surfaces of the first pump (107), the second pump (109), the third pump (112), and the fourth pump (113) are all fitted with electrical components by screws. The machine (106) has its input end electrically connected to the output end of the controller (101). The output end of the motor (106) is fitted with a rotating shaft via a coupling. A suction nozzle is mounted on the surface at the bottom of the rotating shaft, and the suction nozzle is connected to the first air pump (107), the second air pump (109), the third air pump (112), and the fourth air pump (113) via pipes. There are two support base plates (115), frame plates (114), and material plate bodies (105). The following are located directly below the camera body (111): a cooling fan (116) is installed on the inner wall of the film sorting machine body (1); a box (118) is installed on the inner wall of the film sorting machine body (1); a support block (119) is installed on the inner wall of the box (118); a material plate clamp (120) is placed on the surface of the top position of the support block (119); an upper plate assembly (121) is installed on the inner wall of the film sorting machine body (1); and an air outlet (122) is installed on the surface of the fixing frame (108); the air outlet (122) is located on the rear side of the suction nozzle.
3. An automatic stacking machine for quartz crystals according to claim 1, characterized in that: The centralized collection mechanism (2) consists of a fixing block (21), a positioning slot (22), a positioning block (23), a connecting block (24), a fixing groove (25), and a collection frame (26). The surface of the fixing frame (108) is provided with a collection frame (26) for collecting defective products. The collection frame (26) is located below the first air pump (107), the second air pump (109), the third air pump (112), and the fourth air pump (113). The surface of the collection frame (26) is equipped with a connecting block (24).
4. An automatic stacking machine for quartz crystals according to claim 3, characterized in that: The surface of the fixing frame (108) is provided with fixing grooves (25). One end of the connecting block (24) extends into the interior of the fixing groove (25). A positioning block (23) is installed on the surface of the bottom of the connecting block (24). A fixing block (21) is installed on the inner wall of the fixing groove (25). The fixing block (21) is located below the connecting block (24). A positioning slot (22) is provided on the surface of the fixing block (21). The positioning slot (22) and the surface of the positioning block (23) are engaged with each other.
5. An automatic stacking machine for quartz crystals according to claim 1, characterized in that: The automatic vibrating material mechanism (3) consists of an electric push rod (31), a holding groove (32), a slider (33), and a base (34). The base (34) is installed on the surface of the bottom of the material plate body (105). The holding groove (32) is opened on the surface of the frame plate (114). The slider (33) is installed inside the holding groove (32). The slider (33) slides and engages with the surface of the holding groove (32). The surface of the slider (33) is fixed to the surface of the bottom of the base (34).
6. An automatic stacking machine for quartz crystals according to claim 5, characterized in that: An electric push rod (31) is installed on the inner wall of the holding tank (32). The input end of the electric push rod (31) is electrically connected to the output end of the controller (101), and the output end of the electric push rod (31) is fixed to the surface of the slider (33).