Material supply device for vacuum coating machine

Abstract

The utility model relates to vacuum coating machine technical field, in particular to a kind of material supply device for vacuum coating machine, including vacuum coating machine, the vacuum coating machine includes pedestal, coating chamber and the vacuum pump group being connected with coating chamber, the coating chamber is fixedly installed in the upper end surface of pedestal, and one side of coating chamber is provided with material supply shell, the material supply shell is sealingly connected with coating chamber, the outer end sealing connection of material supply shell has bending feed pipe group, the outer end fixed mounting of bending feed pipe group has feeding assembly. Through the structural setting of bending feed pipe group, when using, material is smoothly guided to fall by gravity, ensure the stability of feeding, cooperate the sealing structure of horizontal pipe group and side seal cover, realize the overall air tightness of material conveying path, effectively prevent dust to escape and chamber gas leakage.

Description

Technical Field

[0001] This utility model relates to the field of vacuum coating machine technology, and in particular to a material supply device for a vacuum coating machine. Background Technology

[0002] Coating equipment typically includes a coating chamber, a material conveying system, and a control system. The material conveying system is responsible for accurately and stably feeding the coating material (such as metal particles or oxide powder) into the coating chamber, and its performance directly affects the uniformity and consistency of the coating layer.

[0003] Traditional coating material conveying systems often employ straight or single-inclined feeding channels, which are prone to blockage due to uneven gravity distribution or dust escape due to insufficient sealing at channel bends. This not only pollutes the working environment but also affects the purity of the coating material. Feed control typically relies on valve throttling or natural discharge methods, making it difficult to precisely adjust the feeding speed and quantity. This can easily lead to overfeeding resulting in excessively thick coating layers or underfeeding causing incomplete coating. Utility Model Content

[0004] This invention solves the problems in related technologies and proposes a material supply device for a vacuum coating machine.

[0005] To solve the above-mentioned technical problems, this utility model is achieved through the following technical solution: A material supply device for a vacuum coating machine includes a vacuum coating machine, which comprises a base, a coating chamber, and a vacuum pump assembly connected to the coating chamber. The coating chamber is fixedly installed on the upper surface of the base, and a material supply shell is provided on one side of the coating chamber. The material supply shell is sealed to the coating chamber. A bent feeding pipe assembly is sealed to the outer end of the material supply shell. A feeding component is fixedly installed on the outer end of the bent feeding pipe assembly, and a storage tank is fixedly installed on the upper surface of the bent feeding pipe assembly. A filler assembly for adding material to the storage tank is fixedly installed on the upper surface of the storage tank.

[0006] As a preferred embodiment, the bent feed tube assembly includes an inclined tube section and a horizontal tube assembly. The inclined tube section is obliquely disposed at the outer end of the material supply shell, and the lower end of the inclined tube section is sealed and fixedly connected to the material supply shell. The horizontal tube assembly is sealed and connected to the upper end of the inclined tube section.

[0007] As a preferred embodiment, the feeding assembly includes a side cover, a motor, and a feeding screw. The side cover is fixedly installed at the outer end of the horizontal pipe assembly, the motor is fixedly installed on the outer side surface of the side cover, and the feeding screw is rotatably and sealed in the horizontal pipe assembly, with one end of the feeding screw passing through the side cover and fixedly connected to the output end of the motor.

[0008] As a preferred embodiment, the storage bin includes an inverted trapezoidal shell and a top frame. The inverted trapezoidal shell is fixedly installed on the upper end face of the horizontal pipe assembly, and a discharge trough communicating with the horizontal pipe assembly is opened at the lower end of the inverted trapezoidal shell. The top frame is fixedly installed on the upper end face of the inverted trapezoidal shell.

[0009] As a preferred embodiment, the packing assembly includes a packing box, a power component, and a reversing component. The packing box is fixedly installed on the upper end face of the top frame, the power component is fixedly installed on the upper end face of the packing box, and the power component is used to provide negative pressure to the packing box. The reversing component is rotatably installed in the packing box, and a second motor for driving the reversing component to rotate is also fixedly installed on the outer side of the packing box.

[0010] As a preferred embodiment, the packing box includes a main shell, a sealing cover, and an adsorption tube. The sealing cover is sealed and fixedly installed on the front end face of the main shell, and one end of the adsorption tube is sealed and connected to the side of the main shell.

[0011] As a preferred embodiment, the power component includes an air pump and a filter screen, with the air pump's intake port extending into the main housing and the filter screen fixedly installed at the air pump's intake port.

[0012] As a preferred embodiment, the deflector includes a center rod and a sealing plate. The center rod is rotatably installed in the main housing, and the sealing plate is sleeved and fixed on the center rod. The inner side of the main housing has discharge ramps and sealing arcs that cooperate with the sealing plate on both sides.

[0013] Compared with existing technologies, the beneficial effects of this utility model are as follows: Through the structural design of the bent feeding pipe, gravity guides the material to fall smoothly during use, ensuring the stability of the feeding process. Combined with the sealing structure of the horizontal pipe assembly and the side cover, the overall airtightness of the material conveying path is achieved, effectively preventing dust dispersion and chamber gas leakage. The feeding assembly is driven by a motor to rotate the feeding screw, utilizing the screw's spiral propulsion characteristics to achieve stable feeding and avoid overfeeding or underfeeding. The storage tank adopts a combination design of an inverted trapezoidal shell and a top frame. The inverted trapezoidal structure uses the inclined inner wall to guide the material to slide down in a concentrated manner. The lower discharge chute is directly connected to the horizontal pipe assembly, achieving a low-resistance connection between the storage tank and the conveying channel, reducing material conveying resistance. The packing assembly creates a negative pressure environment inside the packing tank through a power component (air pump), which, together with the adsorption tube, achieves sealed adsorption of the coating material, reducing dust dispersion during the feeding process. Attached Figure Description

[0014] Figure 1 This is a perspective view of the overall structure in an embodiment of this utility model; Figure 2 yes Figure 1 A front view of the device shown; Figure 3This is a perspective view of the vacuum coating machine, the bent feeding pipe assembly, and the storage tank in combination according to an embodiment of this utility model; Figure 4 This is a perspective view of the feeding assembly in an embodiment of this utility model; Figure 5 This is an exploded structural diagram of the filler assembly in an embodiment of the present utility model; Figure 6 yes Figure 5 The device shown is a front view of the apparatus without the sealing cover installed. Figure 7 yes Figure 6 A schematic diagram of the device when the reversing component flips to discharge material.

[0015] In the diagram: 1. Vacuum coating machine; 11. Base; 12. Coating chamber; 2. Material supply shell; 3. Bending feed pipe assembly; 31. Inclined pipe section; 32. Horizontal pipe assembly; 4. Feeding assembly; 41. Side cover; 42. Motor 1; 43. Feeding screw; 5. Storage tank; 51. Inverted trapezoidal shell; 52. Top frame; 6. Packing assembly; 61. Packing box; 611. Main shell; 612. Sealing cover; 613. Adsorption tube; 614. Discharge slope; 615. Sealing arc surface; 62. Power component; 621. Air pump; 622. Shielding filter; 63. Directional component; 631. Center rod; 632. Sealing plate; 64. Motor 2. Detailed Implementation

[0016] 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, and not all embodiments. The following description of at least one exemplary embodiment is merely illustrative and is in no way intended to limit the present utility model or its application or use. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the scope of protection of the present utility model.

[0017] It should be noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the exemplary embodiments according to this application. As used herein, the singular form is intended to include the plural form as well, unless the context clearly indicates otherwise. Furthermore, it should be understood that when the terms "comprising" and / or "including" are used in this specification, they indicate the presence of features, steps, operations, devices, components, and / or combinations thereof.

[0018] Unless otherwise specifically stated, the relative arrangement, numerical expressions, and values ​​of the components and steps described in these embodiments do not limit the scope of this invention. It should also be understood that, for ease of description, the dimensions of the various parts shown in the drawings are not drawn to actual scale. Techniques, methods, and devices known to those skilled in the art may not be discussed in detail, but where appropriate, such techniques, methods, and devices should be considered part of the specification. In all examples shown and discussed herein, any specific values ​​should be interpreted as merely exemplary and not as limitations. Therefore, other examples of exemplary embodiments may have different values. It should be noted that similar reference numerals and letters in the following figures denote similar items; therefore, once an item is defined in one figure, it need not be further discussed in subsequent figures.

[0019] In the description of this utility model, it should be understood that the directional terms such as "front, back, up, down, left, right", "horizontal, vertical, horizontal" and "top, bottom" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description. Unless otherwise stated, these directional terms do not 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 on the scope of protection of this utility model. The directional terms "inner" and "outer" refer to the inner and outer contours relative to the outline of each component itself.

[0020] For ease of description, spatial relative terms such as "above," "over," "on the upper surface of," "above," etc., are used herein to describe the spatial positional relationship of a device or feature as shown in the figures to other devices or features. It should be understood that spatial relative terms are intended to encompass different orientations in use or operation beyond the orientation of the device as described in the figures. For example, if the device in the figures were inverted, a device described as "above" or "above" other devices or structures would subsequently be positioned as "below" or "under" other devices or structures. Thus, the exemplary term "above" can include both "above" and "below." The device may also be positioned in other different ways (rotated 90 degrees or in other orientations), and the spatial relative descriptions used herein will be interpreted accordingly.

[0021] Furthermore, it should be noted that the use of terms such as "first" and "second" to define components is merely for the purpose of distinguishing the corresponding components. Unless otherwise stated, the above terms have no special meaning and therefore cannot be construed as limiting the scope of protection of this utility model.

[0022] Example 1 Reference Figure 1 , Figure 2 and Figure 3 As shown, a material supply device for a vacuum coating machine 1 includes a vacuum coating machine 1, a base 11, a coating chamber 12, and a vacuum pump assembly connected to the coating chamber 12. The coating chamber 12 is fixedly installed on the upper surface of the base 11, and a material supply shell 2 is provided on one side of the coating chamber 12. The material supply shell 2 is sealed to the coating chamber 12. A bent feeding pipe assembly 3 is sealed to the outer end of the material supply shell 2. A feeding component 4 is fixedly installed on the outer end of the bent feeding pipe assembly 3, and a storage tank 5 is fixedly installed on the upper surface of the bent feeding pipe assembly 3. A filler assembly 6 for adding material to the storage tank 5 is fixedly installed on the upper surface of the storage tank 5. By setting up an independent material supply shell 2 on the side of the coating chamber and sealing it with the coating chamber, the entire process of receiving, storing, and transporting materials outside the chamber is physically isolated from the vacuum environment of the coating chamber, thereby significantly reducing the risk of material contamination and leakage to the vacuum inside the chamber. Meanwhile, by configuring the bent feeding pipe group 3 and the upper storage box 5, the low-level feeding and high-level storage are organically combined, which facilitates the batch reception and continuous feeding of materials, and improves work efficiency and operational safety.

[0023] Reference Figure 1 and Figure 2 As shown, the bent feed tube assembly 3 includes an inclined tube section 31 and a horizontal tube assembly 32. The inclined tube section 31 is obliquely disposed at the outer end of the material supply shell 2, and its lower end is sealed and fixedly connected to the material supply shell 2. The horizontal tube assembly 32 is sealed and connected to the upper end of the inclined tube section 31. By combining the inclined tube section 31 and the horizontal tube assembly 32, the material is ensured to fall smoothly under gravity, reducing blockage. Furthermore, the horizontal section facilitates the installation of a rotating feed mechanism (such as a screw) and forms an airtight rotating shaft channel, thereby achieving controlled material conveying under closed conditions. The sealed connection between the inclined tube section 31 and the feed shell ensures the overall airtightness of the material path.

[0024] Reference Figure 2 and Figure 4 As shown, the feeding assembly 4 includes a side cover 41, a motor 42, and a feeding screw 43. The side cover 41 is fixedly installed on the outer end of the horizontal tube assembly 32, the motor 42 is fixedly installed on the outer surface of the side cover 41, and the feeding screw 43 is rotatably and sealed within the horizontal tube assembly 32, with one end of the feeding screw 43 passing through the side cover 41 and fixedly connected to the output end of the motor 42. Precise control of the feeding speed and quantity is achieved through the cooperation of the sealed shaft and the drive motor, and closed-loop regulation can be achieved by combining motor feedback (encoder) to avoid overfeeding or underfeeding. The sealing structure of the side cover 41 reduces leakage at the shaft.

[0025] Reference Figure 1 and Figure 3As shown, the storage tank 5 includes an inverted trapezoidal shell 51 and a top frame 52. The inverted trapezoidal shell 51 is fixedly installed on the upper end face of the horizontal pipe assembly 32, and a discharge chute communicating with the horizontal pipe assembly 32 is opened at the lower end of the inverted trapezoidal shell 51. The top frame 52 is fixedly installed on the upper end face of the inverted trapezoidal shell 51. The storage tank 5 adopts a combination of the inverted trapezoidal shell 51 and the top frame 52. The inverted trapezoidal structure facilitates the concentrated downward flow of materials, prevents bridging and residual material retention, and at the same time, the lower discharge chute is set to communicate with the horizontal pipe assembly 32, realizing a low-resistance connection between the storage tank 5 and the conveying channel. The top frame 52 facilitates the installation of the filling assembly 6 and enables quick docking and maintenance of the upper feeding.

[0026] Example 2 Reference Figure 5 , Figure 6 and Figure 7 As shown, the packing assembly 6 includes a packing box 61, a power component 62, and a reversing component 63. The packing box 61 is fixedly installed on the upper end face of the top frame 52. The power component 62 is fixedly installed on the upper end face of the packing box 61 and is used to provide negative pressure to the packing box 61. The reversing component 63 is rotatably installed in the packing box 61, and a motor 64 for driving the reversing component 63 to rotate is also fixedly installed on the outer side of the packing box 61. By creating a controllable negative pressure environment at the top of the storage tank 5 and setting a reversing mechanism, the feeding from above is carried out in a way that minimizes desorption / dust dispersion. The rotation of the reversing component 63, in conjunction with the geometry inside the packing box 61, allows the material to fall stably into the storage tank 5 below.

[0027] Reference Figure 5 , Figure 6 and Figure 7 As shown, the stuffing box 61 includes a main shell 611, a sealing cover 612, and an adsorption tube 613. The sealing cover 612 is sealed and fixedly installed on the front end face of the main shell 611, and one end of the adsorption tube 613 is sealed and connected to the side of the main shell 611. By designing the stuffing box 61 into a structure in which the main shell 611, the sealing cover 612, and the adsorption tube 613 cooperate, the installation of the sealing cover 612 on the main shell 611 facilitates better disassembly and maintenance in the future. At the same time, the adsorption tube 613 ensures better adsorption of coating materials from the outside into the stuffing box 61. Furthermore, for smooth material discharge, several venting grooves can be opened on the side of the main shell 611 where the adsorption tube 613 is not installed.

[0028] Reference Figure 6 and Figure 7As shown, the power unit 62 includes a vacuum pump 621 and a shielding filter 622. The suction port of the vacuum pump 621 extends into the main housing 611, and the shielding filter 622 is fixedly installed at the suction port of the vacuum pump 621. The power unit 62 uses the vacuum pump 621 in conjunction with the shielding filter 622 to achieve the process rhythm of "adsorption-release-uniform falling" by establishing a controlled negative pressure in the stuffing box 61. The shielding filter 622 can effectively trap large particles or flying dust, protect the vacuum pump 621, and reduce contamination and load fluctuations of the vacuum pump unit.

[0029] Reference Figure 6 and Figure 7 As shown, the deflector 63 includes a central rod 631 and a sealing plate 632. The central rod 631 is rotatably mounted in the main housing 611, and the sealing plate 632 is sleeved and fixed on the central rod 631. The inner side of the main housing 611 has discharge ramps 614 and sealing arc surfaces 615 that cooperate with the sealing plate 632. The cooperation between the central rod 631 and the sealing plate 632, along with the discharge ramps 614 and sealing arc surfaces 615 on the inner side of the main housing 611, achieves low-wear contact between the material and the sealing element through a reasonable geometric fit, effectively guiding the material downwards and achieving sealing separation. Thus, when the sealing plate 632 is flipped left or right, it forms a sealed space on the right side of the main housing 611, facilitating the adsorption of the coating particles into this space after the power unit 62 is started. After adsorption, the sealing plate 632 is flipped to discharge the coating particles downwards along the discharge ramps 614.

[0030] In this embodiment, during actual filling, the vacuum pump 621 of the power component 62 is activated, creating negative pressure inside the filling box 61. The material is then drawn into the main housing 611 of the filling box 61 through the adsorption tube 613. The second motor 64 is activated, driving the center rod 631 of the deflector 63 to rotate, causing the sealing plate 632 to rotate. The material falls through the discharge ramp 614 into the inverted trapezoidal shell 51 of the storage tank 5. The first motor 42 is activated, driving the feed screw 43 to rotate, transporting the material in the storage tank 5 through the discharge trough to the horizontal pipe assembly 32, then through the inclined pipe section 31 to the material supply shell 2, and finally into the coating chamber 12 for coating.

[0031] The above are preferred embodiments of this utility model. Those skilled in the art can make changes and modifications to the above embodiments. Therefore, this utility model is not limited to the specific embodiments described above. Any obvious improvements, substitutions or modifications made by those skilled in the art based on this utility model shall fall within the protection scope of this utility model.

Claims

1. A material supply device for a vacuum coating machine, comprising a vacuum coating machine (1), characterized in that: The vacuum coating machine (1) includes a base (11), a coating chamber (12), and a vacuum pump assembly connected to the coating chamber (12). The coating chamber (12) is fixedly installed on the upper end face of the base (11), and a material supply shell (2) is provided on one side of the coating chamber (12). The material supply shell (2) is sealed to the coating chamber (12). A bent feeding pipe assembly (3) is sealed to the outer end of the material supply shell (2). A feeding assembly (4) is fixedly installed on the outer end of the bent feeding pipe assembly (3), and a storage tank (5) is fixedly installed on the upper end face of the bent feeding pipe assembly (3). A filling assembly (6) for adding material to the storage tank (5) is fixedly installed on the upper end face of the storage tank (5).

2. The material supply device for a vacuum coating machine according to claim 1, characterized in that: The bent feed tube assembly (3) includes an inclined tube section (31) and a horizontal tube assembly (32). The inclined tube section (31) is inclinedly disposed at the outer end of the material supply shell (2), and the lower end of the inclined tube section (31) is sealed and fixedly connected to the material supply shell (2). The horizontal tube assembly (32) is sealed and connected to the upper end of the inclined tube section (31).

3. The material supply device for a vacuum coating machine according to claim 2, characterized in that: The feeding assembly (4) includes a side cover (41), a motor (42) and a feeding screw (43). The side cover (41) is fixedly installed on the outer end of the horizontal pipe assembly (32). The motor (42) is fixedly installed on the outer side surface of the side cover (41). The feeding screw (43) is sealed and rotatably installed in the horizontal pipe assembly (32), and one end of the feeding screw (43) passes through the side cover (41) and is fixedly connected to the output end of the motor (42).

4. The material supply device for a vacuum coating machine according to claim 3, characterized in that: The storage box (5) includes an inverted trapezoidal shell (51) and a top frame (52). The inverted trapezoidal shell (51) is fixedly installed on the upper end face of the horizontal pipe assembly (32), and the lower end of the inverted trapezoidal shell (51) is provided with a discharge trough that communicates with the horizontal pipe assembly (32). The top frame (52) is fixedly installed on the upper end face of the inverted trapezoidal shell (51).

5. The material supply device for a vacuum coating machine according to claim 4, characterized in that: The packing assembly (6) includes a packing box (61), a power component (62), and a reversing component (63). The packing box (61) is fixedly installed on the upper surface of the top frame (52). The power component (62) is fixedly installed on the upper surface of the packing box (61) and is used to provide negative pressure to the packing box (61). The reversing component (63) is rotatably installed in the packing box (61), and a second motor (64) for driving the reversing component (63) to rotate is also fixedly installed on the outer side of the packing box (61).

6. The material supply device for a vacuum coating machine according to claim 5, characterized in that: The packing box (61) includes a main shell (611), a sealing cover (612), and an adsorption tube (613). The sealing cover (612) is sealed and fixedly installed on the front end face of the main shell (611), and one end of the adsorption tube (613) is sealed and connected to the side of the main shell (611).

7. The material supply device for a vacuum coating machine according to claim 6, characterized in that: The power unit (62) includes an air pump (621) and a shielding filter (622). The air intake of the air pump (621) extends into the main housing (611), and the shielding filter (622) is fixedly installed in the air intake of the air pump (621).

8. The material supply device for a vacuum coating machine according to claim 7, characterized in that: The deflector (63) includes a center rod (631) and a sealing plate (632). The center rod (631) is rotatably installed in the main housing (611). The sealing plate (632) is sleeved and fixed on the center rod (631). The inner side of the main housing (611) is provided with a discharge inclined surface (614) and a sealing arc surface (615) that cooperate with the sealing plate (632).

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