Turnover tool cleaning equipment for coated tool machining

Abstract

The invention relates to the technical field of cutter cleaning, and discloses a turnover cutter cleaning device for cutter machining, which comprises a bottom plate and four groups of supporting legs, the tops of the four groups of supporting legs are fixedly connected with the bottom of the bottom plate, the middle end of the top of the bottom plate is fixedly connected with a bent plate, and the top of the bent plate is provided with a cleaning mechanism. The cleaning mechanism is installed at the middle end of the top of the bent plate, a bearing plate is arranged at the top of the bottom plate, the cleaning device further comprises a supporting mechanism, the supporting mechanism comprises a fixing plate, and the side, close to the bearing plate, of the fixing plate is fixedly connected with the outer wall of the bearing plate. According to the coating knife cleaning device, by arranging the supporting mechanism, a coating knife can be stably fixed, in the coating knife cleaning process, the supporting mechanism plays a role, displacement of the coating knife during cleaning is avoided, the stability of the cleaning process is guaranteed through the design, and the situation that the cleaning effect is poor due to displacement of the knife is effectively prevented; and therefore, the cleaning work can be efficiently and smoothly carried out.

Description

Technical Field

[0001] The invention relates to the technical field of tool cleaning, in particular to a tool cleaning device capable of turning over during coating tool processing. Background Art

[0002] Coated tools are tools that have one or more layers of material films with special properties coated on the surface of the tool substrate through physical vapor deposition (PVD), chemical vapor deposition (CVD) and other methods. These coating materials are combined with the substrate to give the tool better performance to meet different cutting processing requirements.

[0003] A patent application with application number CN202311607124.1 discloses a cleaning device for coated tool processing, including a base provided with a rinsing station and a drying station and a side support plate fixedly installed on the base; a rinsing component is provided at the rinsing station; a drying component is provided at the drying station; and a guide rail is fixedly installed on the side support plate.

[0004] Currently, when using a coated knife to cut single crystal silicon, impurities attached to the outer surface of the coated knife will have a negative impact on the cutting effect, so the coated knife needs to be cleaned. However, the existing cleaning method is not effective and needs to be improved. Summary of the invention

[0005] In view of the deficiencies in the prior art, the object of the present invention is to provide a tool cleaning device with a flippable surface for coating tool processing, so as to solve the problems raised in the above-mentioned background technology.

[0006] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a tool cleaning device for tool processing, comprising a bottom plate and four groups of supporting legs, the tops of the four groups of supporting legs are fixedly connected to the bottom of the bottom plate, a curved plate is fixedly connected to the middle end of the top of the bottom plate, a cleaning mechanism is arranged on the top of the curved plate, the cleaning mechanism is installed at the middle end of the top of the curved plate, a load-bearing plate is arranged on the top of the bottom plate, and further comprising:

[0007] The support mechanism comprises a fixed plate, wherein one side of the fixed plate close to the load-bearing plate is fixedly connected to the outer wall of the load-bearing plate, the middle end of the top of the fixed plate is fixedly connected to a push rod, and the bottom of the push rod is connected to a rectangular shell, and the inner wall of the rectangular shell is provided with a first spring rod, and the side of the first spring rod close to the load-bearing plate is fixedly connected to the inner wall of the load-bearing plate, and the side of the first spring rod away from the load-bearing plate is slidably connected to a moving ring, and the side of the moving ring away from the first spring rod is fixedly connected to a lower pressure plate, and the inner wall of the lower pressure plate is provided with a sliding block, the outer wall of the sliding block is slidably connected to the inner wall of the lower pressure plate, and the bottom of the sliding block is fixedly connected to a bent rod, the first spring rod, the moving ring, the lower pressure plate and the sliding block are all arranged in two groups, and are all symmetrically arranged with the middle of the rectangular shell as the center, and the moving ring is used to push the first spring rod for compression.

[0008] According to the above technical solution, it also includes a pressing mechanism, which includes a hanging plate, and the side of the hanging plate close to the load-bearing plate is fixedly connected to the load-bearing plate through a fixed axis, and the side of the hanging plate away from the load-bearing plate is rotatably connected to a rotating plate through a first rotating axis, and the hanging plate is used to support the rotating plate.

[0009] According to the above technical solution, a protective shell is fixedly connected to the side of the rotating plate away from the hanging plate, a second spring rod is fixedly connected to the top of the protective shell, and a pressing plate is fixedly connected to the side of the second spring rod away from the protective shell. The second spring rod is used to push the pressing plate to reset.

[0010] According to the above technical solution, two groups of pull rods are fixedly connected to one side of the pressing plate close to the protective shell, and pull ropes are fixedly connected to one side of the two groups of pull rods away from the pressing plate. Connecting rods are fixedly connected to one side of the two groups of pull ropes away from the pull rods, and the pull ropes are used to pull the pull rods to move.

[0011] According to the above technical solution, the inner wall of the protective shell is provided with a bonding plate, and the bonding plate is rotatably connected to the inner wall of the protective shell through a second rotating shaft, and the connecting rod passes through the bonding plate. The bonding plate, the connecting rod, two groups of pull ropes, two groups of pull rods, the pressing plate and the second spring rod are all arranged in two groups, which are symmetrically arranged with the middle part of the protective shell as the center, and the pressing mechanism is arranged in two groups, which are symmetrically arranged with the middle part of the load-bearing plate as the center. The bonding plate is used to limit the coating knife.

[0012] According to the above technical solution, it also includes a shaking mechanism, which includes a contact plate, and the side of the contact plate close to the load-bearing plate is fixedly connected to the bottom of the load-bearing plate, and the side of the contact plate away from the load-bearing plate is fixedly connected to two groups of rotating plates, which are used to push the load-bearing plate to rotate at an angle.

[0013] According to the above technical solution, the two groups of rotating plates are rotatably connected to a square block on one side away from the contact plate through a third rotating axis, the square block is fixedly connected to a movable plate on one side away from the rotating plate, and the left sides of the two groups of rotating plates are fixedly connected to a limiting plate, which is used to fix the position of the square block.

[0014] According to the above technical solution, two groups of third spring rods are fixedly connected to one side of the movable plate away from the square block, two groups of third spring rods are fixedly connected to a positioning plate on one side of the movable plate away from the third spring rods, and two groups of positioning plates are fixedly connected to the top of the bottom plate on one side away from the third spring rods. The third spring rods are used to reduce the shaking pressure of the movable plate.

[0015] Compared with the prior art, the present invention provides a tool cleaning device for coating tool processing that can be turned over, which has the following beneficial effects:

[0016] 1. The present invention can stably fix the coating knife by providing a supporting mechanism. During the process of cleaning the coating knife, the supporting mechanism plays a role to prevent the coating knife from being displaced during cleaning. This design ensures the stability of the cleaning process and effectively prevents the occurrence of poor cleaning effect due to tool displacement, thereby ensuring that the cleaning work is carried out efficiently and smoothly.

[0017] 2. The present invention provides a pressing mechanism, which can quickly press the coated knife when the coated knife is turned over for cleaning. This design can ensure that all parts of the knife surface are completely cleaned, helping the coated knife to achieve a more precise and thorough cleaning effect.

[0018] 3. The present invention provides a shaking mechanism. When cleaning the coated knife, the mechanism works to produce a continuous shaking effect, which enables the water flow to fully cover all surfaces of the coated knife, allowing the water flow to continuously flush and shake the surface of the knife, thereby achieving all-round cleaning of the knife and ensuring that the cleaning work is more meticulous.

[0019] 4. The present invention sets a rotating plate, through which the rotation angle of the load-bearing plate can be flexibly adjusted. When the load-bearing plate is at different rotation angles, the shaking flow rate of the water flow can be regulated. In this way, when facing different types of knives, the water flow rate can be changed to meet the cleaning needs of the knives, thereby ensuring the cleaning effect of the knives in all directions. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a structural schematic diagram of the present invention;

[0021] Figure 2 It is a structural schematic diagram of the load-bearing plate of the present invention;

[0022] Figure 3 It is a structural schematic diagram of the supporting mechanism of the present invention;

[0023] Figure 4 It is a structural schematic diagram of the lower pressing plate of the present invention;

[0024] Figure 5 It is a structural schematic diagram of the pressing mechanism of the present invention;

[0025] Figure 6 It is a schematic diagram of the structure of the protective shell of the present invention;

[0026] Figure 7 It is a structural schematic diagram of the shaking mechanism of the present invention;

[0027] Figure 8 It is a structural schematic diagram of the rotating plate of the present invention.

[0028] In the figure: 1. supporting leg; 2. bottom plate; 3. curved plate; 4. cleaning mechanism; 5. load-bearing plate; 6. supporting mechanism; 601. rectangular shell; 602. top rod; 603. fixed plate; 604. first spring rod; 605. moving ring; 606. lower pressure plate; 607. curved rod; 608. sliding block; 7. pressing mechanism; 701. hanging plate; 702. rotating plate; 703. protective shell; 704. pressing plate; 705. pull rod; 706. pull rope; 707. connecting rod; 708. fitting plate; 709. second spring rod; 8. shaking mechanism; 801. contact plate; 802. positioning plate; 803. third spring rod; 804. movable plate; 805. square block; 806. rotating plate; 807. limiting plate. DETAILED DESCRIPTION

[0029] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0030] Examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended to be used to explain the present invention, and should not be construed as limiting the present invention.

[0031] In the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, 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, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0032] Example 1: See Figure 1-Figure 4 The present invention provides a technical solution: a tool cleaning device for coating tool processing that can be turned over, comprising a bottom plate 2 and four groups of supporting legs 1, the tops of the four groups of supporting legs 1 are fixedly connected to the bottom of the bottom plate 2, a curved plate 3 is fixedly connected to the middle end of the top of the bottom plate 2, a cleaning mechanism 4 is arranged on the top of the curved plate 3, the cleaning mechanism 4 is installed on the middle end of the top of the curved plate 3, a load-bearing plate 5 is arranged on the top of the bottom plate 2, and also includes:

[0033] The supporting mechanism 6 includes a fixed plate 603, a side of the fixed plate 603 close to the load-bearing plate 5 is fixedly connected to the outer wall of the load-bearing plate 5, a top rod 602 is fixedly connected to the middle end of the top of the fixed plate 603, a rectangular shell 601 is connected to the bottom of the top rod 602, a first spring rod 604 is arranged on the inner wall of the rectangular shell 601, a side of the first spring rod 604 close to the load-bearing plate 5 is fixedly connected to the inner wall of the load-bearing plate 5, a side of the first spring rod 604 away from the load-bearing plate 5 is slidably connected to a moving ring 605, when the moving ring 605 is adjusted, the driving force generated by it will act on the first spring rod 604 and compress it. As the first spring rod 604 is extended and retracted, the position of the lower pressure plate 606 connected thereto also changes accordingly. In this way, the lower pressure plate 606 can flexibly adjust its position to achieve stable support for coating knives of different specifications. The side of the moving ring 605 away from the first spring rod 604 is fixedly connected with the lower pressure plate 606. The inner wall of the lower pressure plate 606 is provided with a sliding block 608. The outer wall of the sliding block 608 is slidably connected to the inner wall of the lower pressure plate 606. The bottom of the sliding block 608 is fixedly connected with a curved rod 607. The first spring rod 604, the moving ring 605, the lower pressure plate 606 and the sliding block 608 are all arranged in two groups, and are all symmetrically arranged with the middle part of the rectangular shell 601 as the center. The moving ring 605 is used to push the first spring rod 604 for compression.

[0034] The working principle of this embodiment is as follows: when the coating knife needs to be cleaned, the staff first places the coating knife on the lower pressing plate 606. The placement of the coating knife will generate a thrust on the lower pressing plate 606, prompting the lower pressing plate 606 to start moving. During the movement, the lower pressing plate 606 pushes the movable ring 605 connected thereto to move synchronously. After receiving the pushing force of the lower pressing plate 606, the movable ring 605 continues to transmit the force to the first spring rod 604, causing the first spring rod 604 to be compressed under pressure. In this process, as the lower pressing plate 606 moves, the sliding block 608 will slide on the surface of the lower pressing plate 606. When the coating knife is completely placed on the lower pressing plate 606, the first spring rod 604 begins to rebound. The rebounding first spring rod 604 pushes the movable ring 605, and the movable ring 605 pushes the lower pressing plate 606, so that the lower pressing plate 606 continues to fit closely with the coating knife. Through this series of mechanical transmissions, the coating knife is stably placed before cleaning, and preparations are made for subsequent cleaning work, ensuring that the cleaning process can proceed smoothly.

[0035] Example 2: Please refer to Figure 5-Figure 6 On the basis of the first embodiment, the present invention provides a technical solution: it also includes a pressing mechanism 7, which includes a hanging plate 701, and the side of the hanging plate 701 close to the load-bearing plate 5 is fixedly connected to the load-bearing plate 5 through a fixed axis, and the side of the hanging plate 701 away from the load-bearing plate 5 is rotatably connected to a rotating plate 702 through a first rotating axis, and the hanging plate 701 is used to support the rotating plate 702, and the side of the rotating plate 702 away from the hanging plate 701 is fixedly connected to a protective shell 703, and the top of the protective shell 703 is fixedly connected to a second spring rod 709, and the side of the second spring rod 709 away from the protective shell 703 is fixedly connected to a pressing plate 704, and the second spring rod 709 is used to push the pressing plate 704 to reset, and the side of the pressing plate 704 close to the protective shell 703 is fixedly connected to two groups of pull rods 705, and the sides of the two groups of pull rods 705 away from the pressing plate 704 are fixedly connected A pull rope 706 is connected, and by setting the pull rope 706, the connecting rod 707 can be controlled to rotate at different angles, thereby controlling the contact state between the bonding plate 708 and the coating knife. The two sets of pull ropes 706 are fixedly connected to the connecting rod 707 on the side away from the pull rod 705. The pull rope 706 is used to pull the pull rod 705 to move. A bonding plate 708 is set on the inner wall of the protective shell 703. The bonding plate 708 is rotatably connected to the inner wall of the protective shell 703 through a second rotating shaft. The connecting rod 707 penetrates the bonding plate 708. The bonding plate 708, the connecting rod 707, the two sets of pull ropes 706, the two sets of pull rods 705, the pressing plate 704 and the second spring rod 709 are all set as two groups, which are all symmetrically arranged with the middle part of the protective shell 703 as the center, and the pressing mechanism 7 is set as two groups, which are all symmetrically arranged with the middle part of the load-bearing plate 5 as the center. The bonding plate 708 is used to limit the coating knife.

[0036] The working principle of this embodiment is as follows: when the coating knife is placed on the supporting mechanism 6, its side wall will be in contact with the bonding plate 708. When the coating knife approaches the bonding plate 708, it will push the bonding plate 708 to rotate, and the rotation of the bonding plate 708 will synchronously drive the connecting rod 707 to move. When the connecting rod 707 is driven to rotate, it will pull the pull rope 706 to make it tend to a vertical state. The pull rope 706 then transmits the pulling force to the pull rod 705. In this way, when the pull rod 705 moves downward, it will pull the pressing plate 704 to move accordingly. When the pressing plate 704 moves, it will press the second spring rod 709 to shrink the second spring rod 709. This series of actions ensures that when the coating knife is turned over, the bonding plate 708 will start to rotate and fit with the side wall of the coating knife in time.

[0037] Example 3: Please refer to Figure 7-Figure 8 On the basis of the first and second embodiments, the present invention provides a technical solution: it also includes a shaking mechanism 8, the shaking mechanism 8 includes a contact plate 801, the side of the contact plate 801 close to the load-bearing plate 5 is fixedly connected to the bottom of the load-bearing plate 5, and the side of the contact plate 801 away from the load-bearing plate 5 is fixedly connected with two groups of rotating plates 806, and the rotating plates 806 are used to push the load-bearing plate 5 to rotate at an angle. The sides of the two groups of rotating plates 806 away from the contact plate 801 are both rotatably connected with square blocks 805 through a third rotating shaft, and the sides of the square blocks 805 away from the rotating plates 806 are fixedly connected with movable plates 804. By setting the rotating plates 806, the rotation angles of the two groups of rotating plates 806 can be different, thereby driving the load-bearing plate 5 to rotate at different angles. The left sides of the two groups of rotating plates 806 are fixedly connected with limited The positioning plate 807, the movable plate 804 is used to fix the position of the square block 805, and the side of the movable plate 804 away from the square block 805 is fixedly connected with two groups of third spring rods 803. By setting the third spring rods 803, when the load-bearing plate 5 shakes, the third spring rods 803 will continuously perform compression and rebound operations. In this process, it can absorb and release energy, thereby effectively reducing the shaking force generated by the load-bearing plate 5, so that the shaking amplitude of the load-bearing plate 5 is suppressed, thereby improving the stability of the entire system. The two groups of third spring rods 803 are fixedly connected with the positioning plate 802 on the side away from the movable plate 804, and the two groups of positioning plates 802 are fixedly connected to the top of the bottom plate 2 on the side away from the third spring rods 803. The third spring rods 803 are used to reduce the shaking pressure of the movable plate 804.

[0038] The working principle of this embodiment is as follows: start the cleaning mechanism 4, so that when the cleaning mechanism 4 cleans the coating knife, the water flow will directly fall after contacting the coating knife, thereby causing the water flow to contact the load-bearing plate 5. When the water flow contacts the load-bearing plate 5, when the load-bearing plate 5 contacts the water flow, the load-bearing plate 5 will press the rotating plate 806. When the water flow in the load-bearing plate 5 is different due to the different collection areas, one side of the support plate will begin to tilt. When the load-bearing plate 5 tilts, it will The rotating plate 806 on one side is pressed, causing the rotating plate 806 to start rotating, thereby causing the rotating plate 806 on one side to drive the limiting plate 807 when rotating, causing the limiting plate 807 to start rotating, and when the limiting plate 807 rotates, it drives the rotating plate 806 on the other side to rotate, thereby causing the load-bearing plate 5 to rotate and shake through the rotation of the rotating plate 806, and when the load-bearing plate 5 shakes, the coating knife will be more careful when cleaning.

[0039] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0040] Finally, it should be noted that the above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or replace some of the technical features therein by equivalents. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A tool cleaning device for coating tool processing, comprising a bottom plate (2) and four groups of supporting legs (1), the tops of the four groups of supporting legs (1) are fixedly connected to the bottom of the bottom plate (2), a curved plate (3) is fixedly connected to the middle of the top of the bottom plate (2), a cleaning mechanism (4) is arranged on the top of the curved plate (3), the cleaning mechanism (4) is installed on the middle of the top of the curved plate (3), and a load-bearing plate (5) is arranged on the top of the bottom plate (2), characterized in that: Also includes: A supporting mechanism (6), the supporting mechanism (6) comprising a fixing plate (603), a side of the fixing plate (603) close to the load-bearing plate (5) being fixedly connected to the outer wall of the load-bearing plate (5), a top rod (602) being fixedly connected to the middle end of the top of the fixing plate (603), a bottom of the top rod (602) being connected to a rectangular shell (601), a first spring rod (604) being arranged on the inner wall of the rectangular shell (601), a side of the first spring rod (604) close to the load-bearing plate (5) being fixedly connected to the inner wall of the load-bearing plate (5), and a side of the first spring rod (604) away from the inside of the load-bearing plate (5) being slidably connected to a moving ring (605) ), a lower pressure plate (606) is fixedly connected to a side of the movable ring (605) away from the first spring rod (604), a sliding block (608) is arranged on the inner wall of the lower pressure plate (606), an outer wall of the sliding block (608) is slidably connected to the inner wall of the lower pressure plate (606), a bent rod (607) is fixedly connected to the bottom of the sliding block (608), the first spring rod (604), the movable ring (605), the lower pressure plate (606) and the sliding block (608) are all arranged in two groups, and are all symmetrically arranged with the middle of the rectangular shell (601) as the center, and the movable ring (605) is used to push the first spring rod (604) for compression.

2. The tool cleaning device for coating tool processing according to claim 1 is characterized in that: The pressing mechanism (7) further comprises a pressing mechanism (7), wherein the pressing mechanism (7) comprises a hanging plate (701), wherein a side of the hanging plate (701) close to the load-bearing plate (5) is fixedly connected to the load-bearing plate (5) via a fixed shaft, and a side of the hanging plate (701) away from the load-bearing plate (5) is rotationally connected to a rotating plate (702) via a first rotating shaft, and the hanging plate (701) is used to support the rotating plate (702).

3. The coating tool processing reversible tool cleaning device according to claim 2 is characterized in that: A protective shell (703) is fixedly connected to the side of the rotating plate (702) away from the hanging plate (701), a second spring rod (709) is fixedly connected to the top of the protective shell (703), and a pressing plate (704) is fixedly connected to the side of the second spring rod (709) away from the protective shell (703), and the second spring rod (709) is used to push the pressing plate (704) to reset.

4. The coating tool processing reversible tool cleaning device according to claim 3 is characterized by: The pressing plate (704) is fixedly connected to one side close to the protective shell (703) with two groups of pull rods (705), the two groups of pull rods (705) are fixedly connected to one side away from the pressing plate (704) with a pull rope (706), and the two groups of pull ropes (706) are fixedly connected to one side away from the pull rods (705) with a connecting rod (707), and the pull rope (706) is used to pull the pull rod (705) to move.

5. The tool cleaning device for coating tool processing according to claim 4 is characterized in that: The inner wall of the protective shell (703) is provided with a bonding plate (708), and the bonding plate (708) is rotatably connected to the inner wall of the protective shell (703) via a second rotating shaft. The connecting rod (707) passes through the bonding plate (708). The bonding plate (708), the connecting rod (707), the two groups of pull ropes (706), the two groups of pull rods (705), the pressing plate (704) and the second spring rod (709) are all arranged in two groups, which are symmetrically arranged with the middle part of the protective shell (703) as the center. The pressing mechanism (7) is arranged in two groups, which are symmetrically arranged with the middle part of the load-bearing plate (5) as the center. The bonding plate (708) is used to limit the coating knife.

6. The tool cleaning device for coating tool processing according to claim 1, characterized in that: It also comprises a shaking mechanism (8), the shaking mechanism (8) comprising a contact plate (801), the side of the contact plate (801) close to the load-bearing plate (5) being fixedly connected to the bottom of the load-bearing plate (5), and the side of the contact plate (801) away from the load-bearing plate (5) being fixedly connected to two groups of rotating plates (806), the rotating plates (806) being used to push the load-bearing plate (5) to rotate at an angle.

7. The tool cleaning device for coating tool processing according to claim 6, characterized in that: The sides of the two groups of rotating plates (806) away from the contact plate (801) are both rotatably connected to a square block (805) via a third rotating shaft, the sides of the square blocks (805) away from the rotating plates (806) are fixedly connected to a movable plate (804), and the left sides of the two groups of rotating plates (806) are both fixedly connected to a limiting plate (807), and the movable plate (804) is used to fix the position of the square blocks (805).

8. The tool cleaning device for coating tool processing according to claim 7, characterized in that: Two sets of third spring rods (803) are fixedly connected to one side of the movable plate (804) away from the square block (805); two sets of third spring rods (803) are fixedly connected to one side of the movable plate (804) away from the positioning plate (802); two sets of positioning plates (802) are fixedly connected to the top of the bottom plate (2) on one side away from the third spring rods (803); the third spring rods (803) are used to reduce the shaking pressure of the movable plate (804).

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