Automatic rubber plug pressing device for production of acrylic oil injection quicksand pendant
By designing an automatic rubber stopper pressing device, the automatic conveying and pressing of rubber stoppers is achieved using a slider system, which solves the problem of inconvenience in manual operation and improves the efficiency and convenience of acrylic pendant production.
Patent Information
- Application Number
- CN202520168383.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-01-23
- Publication Date
- 2026-02-03
- Estimated Expiration
- 2035-01-23
AI Technical Summary
In existing technologies, the process of inserting the rubber plug into acrylic pendants is inconvenient and inefficient due to manual operation.
An automatic rubber plug pressing device was designed, which includes a machine base, a feeding component, a material transfer component, and a pressing component. The X-axis slider, Y-axis slider, and Z-axis slider work together to drive the material take-up head to move. The material take-up head transfers the rubber plug from the guide component to the acrylic plate, and the rubber plug is pressed to the acrylic plate by the ejector pin.
It enables automated pressing of rubber stoppers, improving operational efficiency and ease of use.
Smart Images

Figure CN223864380U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of acrylic product manufacturing technology, and in particular to an automatic pressing rubber plug device for the production of acrylic oil-filled quicksand pendants. Background Technology
[0002] To enhance aesthetics, acrylic pendants are often filled with quicksand and oil, and then the injection holes in the acrylic sheet are sealed with rubber plugs. Currently, the rubber plugs are usually inserted into the acrylic sheet manually, which is inconvenient and inefficient. Utility Model Content
[0003] Therefore, it is necessary to provide an efficient automatic pressing rubber plug device for the production of acrylic oil-filled quicksand pendants to address the above problems.
[0004] An automatic pressing device for producing acrylic oil-filled quicksand hangers includes a machine base, a feeding assembly, a material transfer assembly, and a pressing assembly. An acrylic plate is placed on the machine base. The feeding assembly includes a vibratory feeder and a guide component. The vibratory feeder is mounted on the machine base, and one end of the guide component is connected to the vibratory feeder. The material transfer assembly includes an X-axis slider, a Y-axis slider, and a Z-axis slider. The X-axis slider slides on the machine base, the Y-axis slider slides on the X-axis slider, and the Z-axis slider slides on the Y-axis slider. The pressing assembly includes a picking head and a ejector pin. The picking head slides on the Z-axis slider and is used to transfer the rubber stopper from the guide component to the acrylic plate. The ejector pin is inserted into the picking head and is used to press the rubber stopper against the acrylic plate.
[0005] In one embodiment, the feeding assembly further includes a fixed base, a flipping power element, and a rotating shaft. The fixed base is mounted on the machine base, and the end of the guide member away from the vibratory feeder is connected to the fixed base. The flipping power element is mounted on the fixed base and is used to drive the rotating shaft to rotate. The rotating shaft is used to flip the rubber stopper.
[0006] In one embodiment, the feeding assembly further includes an exhaust pipe connected to the rotating shaft.
[0007] In one embodiment, the material transfer assembly further includes an X-axis guide rail, an X-axis power element, a Y-axis guide rail, a Y-axis power element, a Z-axis guide rail, and a Z-axis power element. The X-axis guide rail is mounted on the machine base, and the X-axis power element is used to drive the X-axis slider to slide on the X-axis guide rail. The Y-axis guide rail is mounted on the X-axis slider, and the Y-axis power element is used to drive the Y-axis slider to slide on the Y-axis guide rail. The Z-axis guide rail is mounted on the Y-axis slider, and the Z-axis power element is used to drive the Z-axis slider to slide on the Z-axis guide rail.
[0008] In one embodiment, the pressing assembly further includes a support block, a support, and a limiting block. The support block is slidably disposed on the Z-axis slider, the support is mounted on the Z-axis slider, and one end of the limiting block is mounted on the support block, while the other end passes through the support.
[0009] In one embodiment, the pressing assembly further includes an air nozzle and an air tube, the air nozzle being mounted on the support, one end of the air nozzle being connected to the ejector pin, and the other end being connected to the air tube.
[0010] In one embodiment, the pressing assembly further includes a sleeve, one end of which is mounted on the feed head and the other end of which is mounted on the support block. One end of the ejector pin is mounted on the support and the other end passes through the sleeve.
[0011] In one embodiment, the material receiving head includes a lifting part and a cylindrical part connected to the lifting part. The lifting part is slidably disposed on the Z-axis slider, and the cylindrical part is used to accommodate the rubber plug. The end of the sleeve away from the support block is inserted into the cylindrical part.
[0012] In one embodiment, a positioning component is also included, which includes a stand, a camera, and a light-emitting element. The stand is mounted on the Z-axis slider, and both the camera and the light-emitting element are mounted on the stand. The light-emitting element is positioned corresponding to the camera.
[0013] In one embodiment, the machine includes a frame, a housing, a base, a substrate, and a through pipe. The housing is mounted on the frame, the base is mounted on the frame, the substrate is mounted on the base, and the acrylic sheet is placed on the substrate. One end of the through pipe is connected to the base, the base is provided with a plurality of air grooves, and the substrate is provided with a plurality of air holes, the air holes being connected to the air grooves.
[0014] Compared with the prior art, the beneficial effects of this utility model are as follows:
[0015] This utility model discloses an automatic rubber plug pressing device for the production of acrylic oil-filled quicksand pendants. The device uses an X-axis slider, a Y-axis slider, and a Z-axis slider to drive the material pick-up head to move. The material pick-up head conveys the rubber plug from the guide to the acrylic plate, and the ejector pin then presses the rubber plug onto the acrylic plate. This automatic rubber plug pressing device for the production of acrylic oil-filled quicksand pendants is convenient to use and improves efficiency. Attached Figure Description
[0016] Figure 1 This is a schematic diagram of the assembly structure of an automatic pressing rubber plug device for producing acrylic oil-filled quicksand pendants, according to one embodiment of the present invention.
[0017] Figure 2 for Figure 1 The diagram shows the structure of an automatic pressing rubber plug device for the production of acrylic oil-filled quicksand pendants. The housing and acrylic sheet are not shown.
[0018] Figure 3 for Figure 2 Enlarged view of center circle A;
[0019] Figure 4 for Figure 2 A schematic diagram of the material transfer assembly and the pressing assembly.
[0020] The meanings of the numbers in the attached diagram are as follows:
[0021] 100. Automatic pressing rubber plug device for the production of acrylic oil-filled quicksand pendants;
[0022] 10. Machine base; 11. Frame; 12. Housing; 13. Base; 14. Base plate; 140. Air vent; 20. Feeding assembly; 21. Vibratory feeder; 22. Guide component; 23. Straight vibratory machine; 24. Fixed base; 25. Tilting power element; 26. Rotating shaft; 260. Receiving groove; 27. Exhaust duct; 30. Material transfer assembly; 31. X-axis slider; 32. Y-axis slider; 33. Z-axis slider; 34. X-axis guide rail; 35. Y-axis guide rail; 36. Y-axis power element; 37. Z-axis guide rail; 38. Z-axis power element;
[0023] 40. Pressing assembly; 41. Feeding head; 411. Lifting part; 412. Cylinder body; 42. Ejector pin; 43. Support block; 44. Support; 45. Limiting block; 46. Air nozzle; 47. Air pipe; 48. Sleeve; 50. Positioning assembly; 51. Stand; 52. Camera; 53. Light-emitting element; 60. Control assembly; 61. Display screen; 62. Housing; 63. Button; 80. Rubber stopper; 90. Acrylic sheet; 91. Injection hole. Detailed Implementation
[0024] To make the above-mentioned objects, features, and advantages of this utility model more apparent and understandable, the specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings. Many specific details are set forth in the following description to provide a full understanding of this utility model. However, this utility model can be implemented in many other ways different from those described herein, and those skilled in the art can make similar modifications without departing from the spirit of this utility model. Therefore, this utility model is not limited to the specific embodiments disclosed below.
[0025] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.
[0026] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this utility model, "a plurality of" means at least two, such as two, three, etc., unless otherwise explicitly specified.
[0027] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise explicitly limited. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.
[0028] In this utility model, unless otherwise explicitly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact with the second feature through an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.
[0029] It should be noted that when an element is referred to as being "fixed to" or "set on" another element, it can be directly on the other element or there may be an intervening element. When an element is considered to be "connected to" another element, it can be directly connected to the other element or there may be an intervening element. The terms "vertical," "horizontal," "upper," "lower," "left," "right," and similar expressions used herein are for illustrative purposes only and do not represent the only possible implementation.
[0030] Please refer to Figures 1 to 4 An automatic pressing plug device 100 for producing acrylic oil-filled quicksand hangers according to one embodiment of the utility model includes a machine base 10, a feeding assembly 20, a material transfer assembly 30, and a pressing assembly 40. An acrylic plate 90 is placed on the machine base 10. The feeding assembly 20 includes a vibratory feeder 21 and a guide component 22. The vibratory feeder 21 is installed on the machine base 10, and one end of the guide component 22 is connected to the vibratory feeder 21. The material transfer assembly 30 includes an X-axis slider 31, a Y-axis slider 32, and a Z-axis slider 33. The X-axis slider 31 is slidably mounted on the machine base 10, the Y-axis slider 32 is slidably mounted on the X-axis slider 31, and the Z-axis slider 33 is slidably mounted on the Y-axis slider 32. The pressing assembly 40 includes a material take-up head 41 and an ejector pin 42. The material take-up head 41 is slidably mounted on the Z-axis slider 33. The material take-up head 41 is used to convey the rubber plug 80 from the guide member 22 to the acrylic plate 90. The ejector pin 42 is inserted into the material take-up head 41. The ejector pin 42 is used to press the rubber plug 80 and the acrylic plate 90 together. The automatic pressing device 100 for producing acrylic oil-filled quicksand pendants uses X-axis slider 31, Y-axis slider 32 and Z-axis slider 33 to drive the material take-up head 41 to move. The material take-up head 41 conveys the rubber stopper 80 from the guide component 22 to the acrylic plate 90. The ejector pin 42 then presses the rubber stopper 80 to press it onto the acrylic plate 90.
[0031] like Figures 1 to 3 As shown, in this embodiment, the acrylic sheet 90 is placed on the machine base 10. The machine base 10 includes a frame 11, a housing 12, a base 13, a substrate 14, and a connecting pipe (not shown). The housing 12 is mounted on the frame 11, the base 13 is mounted on the frame 11, the substrate 14 is mounted on the base 13, and the acrylic sheet 90 is placed on the substrate 14. One end of the connecting pipe is connected to the base 13, and the other end is connected to an exhaust fan. Optionally, the base 13 is provided with multiple air grooves (not shown), and the substrate 14 is provided with multiple air holes 140, which are connected to the air grooves. In use, the acrylic sheet 90 is placed on the substrate 14, and the connecting pipe draws air to generate negative pressure, so that the acrylic sheet 90 is firmly attached to the substrate 14, preventing the acrylic sheet 90 from moving.
[0032] like Figure 2 and Figure 3 As shown, the feeding assembly 20 includes a vibratory feeder 21 and a guide member 22. The vibratory feeder 21 is mounted on the machine base 10, and one end of the guide member 22 is connected to the vibratory feeder 21. The vibratory feeder 21 holds a plurality of rubber plugs 80, and the guide member 22 is used to arrange the rubber plugs 80. Optionally, the feeding assembly 20 also includes a linear vibrator 23, and the end of the guide member 22 away from the vibratory feeder 21 is mounted on the linear vibrator 23. Further, both the vibratory feeder 21 and the linear vibrator 23 are mounted on the frame 11. The rubber plugs 80 are automatically arranged on the guide member 22 by the cooperation of the vibratory feeder 21 and the linear vibrator 23, thereby realizing automatic feeding.
[0033] In one embodiment, the feeding assembly 20 further includes a fixed base 24, a flipping power element 25, and a rotating shaft 26. The fixed base 24 is mounted on the machine base 10, and the end of the guide member 22 away from the vibratory feeder 21 is connected to the fixed base 24 so that the rubber plug 80 slides from the guide member 22 to the fixed base 24. The flipping power element 25 is mounted on the fixed base 24 and is used to drive the rotating shaft 26 to rotate. The rotating shaft 26 is used to flip the rubber plug 80. Optionally, the feeding assembly 20 further includes an exhaust pipe 27, one end of which is connected to the rotating shaft 26, and the other end is connected to an exhaust fan. By exhausting air through the exhaust fan, the rotating shaft 26 generates negative pressure, thereby adsorbing the rubber plug 80. Further, one end of the rotating shaft 26 is provided with a receiving groove 260 to receive the rubber plug 80. In one embodiment, the flipping power element 25 is a hollow motor. The exhaust pipe 27 is connected to the output shaft of the flipping power element 25, and the output shaft is connected to the rotating shaft 26.
[0034] like Figure 2 and Figure 3 As shown, the material transfer assembly 30 includes an X-axis slider 31, a Y-axis slider 32, and a Z-axis slider 33. The X-axis slider 31 is slidably mounted on the machine base 10, the Y-axis slider 32 is slidably mounted on the X-axis slider 31, and the Z-axis slider 33 is slidably mounted on the Y-axis slider 32. Optionally, the material transfer assembly 30 further includes an X-axis guide rail 34, an X-axis power element (not shown), a Y-axis guide rail 35, a Y-axis power element 36, a Z-axis guide rail 37, and a Z-axis power element 38. The X-axis guide rail 34 is mounted on the machine base 10, and the X-axis power element is used to drive the X-axis slider 31 to slide on the X-axis guide rail 34; the Y-axis guide rail 35 is mounted on the X-axis slider 31, and the Y-axis power element 36 is used to drive the Y-axis slider 32 to slide on the Y-axis guide rail 35; the Z-axis guide rail 37 is mounted on the Y-axis slider 32, and the Z-axis power element 38 is used to drive the Z-axis slider 33 to slide on the Z-axis guide rail 37.
[0035] like Figure 4As shown, the pressing assembly 40 includes a feeding head 41 and an ejector pin 42. The feeding head 41 is slidably mounted on the Z-axis slider 33 and is used to convey the rubber stopper 80 from the guide member 22 to the acrylic plate 90. The ejector pin 42 is inserted into the feeding head 41 and is used to press the rubber stopper 80 and the acrylic plate 90 together. Optionally, the feeding head 41 includes a lifting part 411 and a cylindrical part 412 connected to the lifting part 411. The lifting part 411 is slidably mounted on the Z-axis slider 33, and the cylindrical part 412 is used to accommodate the rubber stopper 80. In one embodiment, the pressing assembly 40 further includes a support block 43, a support 44, and a limiting block 45. The support block 43 is slidably disposed on the Z-axis slider 33, the support 44 is mounted on the Z-axis slider 33, and one end of the limiting block 45 is mounted on the support block 43, while the other end passes through the support 44. Optionally, the limiting block 45 is T-shaped.
[0036] In one embodiment, the pressing assembly 40 further includes an air nozzle 46 and an air pipe 47. The air nozzle 46 is mounted on the support 44, with one end connected to the ejector pin 42 and the other end connected to the air pipe 47. One end of the air pipe 47 is connected to a blower. The pressing assembly 40 also includes a sleeve 48, with one end mounted on the material receiving head 41 and the other end mounted on the support block 43. One end of the ejector pin 42 is mounted on the support 44, and the other end passes through the sleeve 48. Optionally, the end of the sleeve 48 away from the support block 43 is inserted into the cylindrical portion 412.
[0037] like Figure 2 As shown, the automatic pressing plug device 100 for producing acrylic oil-filled quicksand hangers also includes a positioning component 50. The positioning component 50 includes a stand 51, a camera 52, and a light-emitting element 53. The stand 51 is mounted on the Z-axis slider 33. The camera 52 and the light-emitting element 53 are both mounted on the stand 51, and the light-emitting element 53 is set corresponding to the camera 52. The position of the injection hole 91 of the acrylic plate 90 is obtained through the camera 52.
[0038] like Figure 1 As shown, the automatic pressing rubber plug device 100 for producing acrylic oil-filled quicksand hangers also includes a control component 60. The control component 60 includes a display screen 61, a controller (not shown), a housing 62, and multiple buttons 63. The display screen 61 is mounted on the machine base 10, and the controller is electrically connected to the display screen 61. The housing 62 is mounted on one side of the machine base 10, and the buttons 63 are mounted on the housing 62. The buttons 63 are signal-connected to the controller; the operation of each power component is controlled by the buttons 63.
[0039] In use, the acrylic sheet 90 is placed on the substrate 14, and the negative pressure generated by the exhaust fan is used to firmly fix the acrylic sheet 90. Under the action of the vibrating plate 21 and the straight vibrating machine 23, the rubber plug 80 slides down to the fixing seat 24 in sequence, and the head of the rubber plug 80 on the fixing seat 24 is facing upward. At this time, the exhaust pipe 27 draws air, causing the rubber plug 80 on the fixing seat 24 to be attracted to the rotating shaft 26. Then, the flipping power element 25 drives the rotating shaft 26 to rotate 180 degrees, so that the end of the rubber plug 80 faces upward. Then, under the action of the X-axis slider 31, Y-axis slider 32 and Z-axis slider 33, the air pipe 47 draws air, causing the pick-up head 41 to pick up the rubber plug 80 on the rotating shaft 26; next, the camera 52 is used for positioning, and under the action of the X-axis slider 31, Y-axis slider 32 and Z-axis slider 33, the pick-up head 41 is moved to the injection hole 91 of the rubber plug 80 to be pressed. As the Z-axis slider 33 descends, the cylindrical part 412 abuts against the acrylic plate 90. As the Z-axis slider 33 descends further, the pick-up head 41, sleeve 48 and support block 43 all slide upward, so that the ejector pin 42 passes through the sleeve 48. At this time, the air pipe 47 stops air intake, and the ejector pin 42 presses the rubber plug 80 in the cylindrical part 412 into the injection hole 91, completing the processing.
[0040] The automatic pressing device 100 for producing acrylic oil-filled quicksand pendants of this utility model uses the cooperation of X-axis slider 31, Y-axis slider 32 and Z-axis slider 33 to drive the material taking head 41 to move. The material taking head 41 conveys the rubber stopper 80 from the guide member 22 to the acrylic plate 90. The ejector pin 42 then presses the rubber stopper 80 to press it onto the acrylic plate 90. The automatic pressing device 100 for producing acrylic oil-filled quicksand pendants is convenient to use and improves efficiency.
[0041] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.
[0042] The embodiments described above are merely illustrative of several implementations of this utility model, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the utility model patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this utility model, and these all fall within the protection scope of this utility model. Therefore, the protection scope of this utility model patent should be determined by the appended claims.
Claims
1. An automatic pressing device for producing acrylic oil-filled sand-like pendants, characterized in that, The assembly includes a machine base, a feeding component, a material transfer component, and a pressing component. An acrylic sheet is placed on the machine base. The feeding component includes a vibratory feeder and a guide component. The vibratory feeder is mounted on the machine base, and one end of the guide component is connected to the vibratory feeder. The material transfer component includes an X-axis slider, a Y-axis slider, and a Z-axis slider. The X-axis slider slides on the machine base, the Y-axis slider slides on the X-axis slider, and the Z-axis slider slides on the Y-axis slider. The pressing component includes a pick-up head and an ejector pin. The pick-up head slides on the Z-axis slider and is used to transfer a rubber stopper from the guide component to the acrylic sheet. The ejector pin is inserted into the pick-up head and is used to press the rubber stopper against the acrylic sheet.
2. The automatic pressing rubber plug device for producing acrylic oil-filled quicksand pendants according to claim 1, characterized in that, The feeding assembly further includes a fixed base, a flipping power element, and a rotating shaft. The fixed base is installed on the machine base, and the end of the guide member away from the vibratory plate is connected to the fixed base. The flipping power element is installed on the fixed base and is used to drive the rotating shaft to rotate. The rotating shaft is used to flip the rubber stopper.
3. The automatic pressing rubber plug device for producing acrylic oil-filled quicksand pendants according to claim 2, characterized in that, The feeding assembly also includes an exhaust pipe, which is connected to the rotating shaft.
4. The automatic pressing rubber plug device for producing acrylic oil-filled quicksand pendants according to claim 1, characterized in that, The material transfer assembly further includes an X-axis guide rail, an X-axis power element, a Y-axis guide rail, a Y-axis power element, a Z-axis guide rail, and a Z-axis power element. The X-axis guide rail is mounted on the machine base, and the X-axis power element is used to drive the X-axis slider to slide on the X-axis guide rail. The Y-axis guide rail is mounted on the X-axis slider, and the Y-axis power element is used to drive the Y-axis slider to slide on the Y-axis guide rail. The Z-axis guide rail is mounted on the Y-axis slider, and the Z-axis power element is used to drive the Z-axis slider to slide on the Z-axis guide rail.
5. The automatic pressing rubber plug device for producing acrylic oil-filled quicksand pendants according to claim 1, characterized in that, The pressing assembly further includes a support block, a support, and a limiting block. The support block is slidably mounted on the Z-axis slider, the support is mounted on the Z-axis slider, and one end of the limiting block is mounted on the support block, while the other end passes through the support.
6. The automatic pressing rubber plug device for producing acrylic oil-filled quicksand pendants according to claim 5, characterized in that, The pressing assembly also includes an air nozzle and an air tube. The air nozzle is installed on the support, and one end of the air nozzle is connected to the ejector pin, while the other end is connected to the air tube.
7. The automatic pressing rubber plug device for producing acrylic oil-filled quicksand pendants according to claim 5, characterized in that, The pressing assembly also includes a sleeve, one end of which is installed on the material taking head and the other end of which is installed on the support block. One end of the ejector pin is installed on the support and the other end of which passes through the sleeve.
8. The automatic pressing rubber plug device for producing acrylic oil-filled quicksand pendants according to claim 7, characterized in that, The material receiving head includes a lifting part and a cylindrical part connected to the lifting part. The lifting part is slidably mounted on the Z-axis slider. The cylindrical part is used to accommodate the rubber plug. The end of the sleeve away from the support block is inserted into the cylindrical part.
9. The automatic pressing rubber plug device for producing acrylic oil-filled quicksand pendants according to claim 1, characterized in that, It also includes a positioning component, which includes a stand, a camera, and a light-emitting element. The stand is mounted on the Z-axis slider, and both the camera and the light-emitting element are mounted on the stand. The light-emitting element is positioned corresponding to the camera.
10. The automatic pressing rubber plug device for producing acrylic oil-filled quicksand pendants according to claim 1, characterized in that, The machine includes a frame, a housing, a base, a base plate, and a through pipe. The housing is mounted on the frame, the base is mounted on the frame, the base plate is mounted on the base, and the acrylic sheet is placed on the base plate. One end of the tube is connected to the base, the base is provided with multiple air grooves, and the base plate is provided with multiple air holes, the air holes being connected to the air grooves.