Automatic powder scattering device of coating machine

Abstract

The utility model belongs to the field of coating machines, and provides an automatic powder scattering device of a coating machine, which comprises a powder feeding tank, a powder scattering tank, an electronic scale, a feeding assembly, a valve assembly and a control system. Wherein the powder feeding tank is used for storing powder; the powder scattering tank forms a powder scattering cavity which is communicated with the powder feeding tank and can adjust the pressure; the electronic scale is positioned at the bottom of the dusting tank and is used for weighing the dusting tank; the feeding assembly comprises a powder feeding motor and a feeding screw which is in transmission connection with the powder feeding motor and is driven by the powder feeding motor to convey powder in the powder feeding tank into the powder scattering cavity; the valve assembly comprises a feeding valve and a discharging valve which are connected to the powder scattering tank and used for controlling feeding and discharging of the powder scattering tank. The control system is in communication connection with the electronic scale, the powder feeding motor, the feeding valve and the discharging valve.

Description

Technical Field

[0001] The present application relates to the field of coating machines, and in particular to an automatic powder sprinkling device for coating machines. Background Art

[0002] Coating machines are a type of mechanical equipment widely used in the pharmaceutical, chemical, food, and agricultural sectors. They typically consist of multiple components, including a feeding system, a coating chamber, a powder spreading device, a hot air circulation system, an exhaust and dust removal system, and a control system. The powder spreading device, a critical link in the coating process, has long been a bottleneck restricting coating efficiency and quality. Traditional coating machines rely primarily on manual operation with a handheld powder spreader and lack automated mechanical structures and control systems, resulting in a cumbersome and inefficient powder spreading process. Operators must constantly repeat the powder spreading action, which is not only labor-intensive but also prone to problems such as uneven, excessive, or insufficient powder spreading. Since manual powder spreading makes it difficult to precisely control the amount of powder applied, the coating effect is often unstable and may even result in wasted or insufficient drug seeds. This not only increases production costs but can also negatively impact the safety and efficacy of the seeds or drugs. Therefore, it is necessary to address these technical issues. Summary of the Invention

[0003] The purpose of the embodiments of the present application is to provide an automatic powder sprinkling device for a coating machine to solve the technical problem of low degree of automation in the powder sprinkling process of the coating machine in the prior art.

[0004] To achieve the above-mentioned purpose, the technical solution adopted in this application is to provide an automatic powder sprinkling device for a coating machine, comprising:

[0005] Powder feeding tank, used to store powder;

[0006] A powder spreading tank forms a powder spreading chamber that is in communication with the powder feeding tank and capable of regulating pressure;

[0007] an electronic scale, located at the bottom of the powder spreading tank and used to weigh the powder spreading tank;

[0008] A feeding assembly includes a powder feeding motor and a feeding screw that is transmission-connected to the powder feeding motor and driven by the powder feeding motor to feed the powder in the powder feeding tank into the powder sprinkling chamber;

[0009] a valve assembly, comprising a feed valve and a discharge valve connected to the powder spreading tank and used to control the feeding and discharging of the powder spreading tank;

[0010] The control system is respectively communicatively connected with the electronic scale, the powder feeding motor, the feed valve and the discharge valve.

[0011] Optionally, the control system further includes a touch display screen for human-computer interaction.

[0012] Optionally, the automatic powder sprinkling device of the coating machine further comprises a powder sprinkling motor connected to the powder feeding tank and a paddle drivingly connected to the powder sprinkling motor and capable of stirring the powder in the powder sprinkling chamber;

[0013] The powder spreading motor is in communication with the control system.

[0014] Optionally, the automatic powder sprinkling device of the coating machine further comprises a discharge hose connected to the powder sprinkling chamber;

[0015] The discharge valve is arranged on the discharge hose and is used to control the on and off of the discharge hose.

[0016] Optionally, the automatic powder spreading device of the coating machine further comprises a trolley for easy movement;

[0017] The powder feeding tank, the powder spreading tank, the electronic scale, the feeding assembly and the valve assembly are all installed on the cart.

[0018] The beneficial effect of the automatic powder sprinkling device for coating machines provided by the present application is that: compared with the prior art, in the automatic powder sprinkling device for coating machines provided by the present application, since the control system is respectively connected to the electronic scale and the powder feeding motor in communication, the total weight of the powder in the powder sprinkling chamber and the weight of the material transported from the powder feeding tank to the powder sprinkling tank by the feeding screw can be accurately measured. In this way, when the powder in the powder sprinkling chamber reaches the target weight, the feeding of the feeding screw can be stopped. In addition, since the control system is also connected to the feed valve and the discharge valve in communication, the powder sprinkling tank can automatically open the feed port or the discharge port and complete the feeding operation or the pressurized powder sprinkling operation, which effectively avoids manual participation and significantly improves the degree of automation in the powder sprinkling process, which is far superior to the prior art. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the following briefly introduces the drawings required for use in the embodiments or descriptions of the prior art. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without any creative work.

[0020] Figure 1 A partial cross-sectional view of the automatic powder spreading device for a coating machine provided in an embodiment of the present application;

[0021] Figure 2 This is a schematic diagram of the overall structure of the automatic powder sprinkling device for the coating machine provided in an embodiment of the present application.

[0022] Among them, the reference numerals in the figure are: 101, powder feeding tank; 102, powder sprinkling tank; 103, powder sprinkling chamber; 104, electronic scale; 105, powder feeding motor; 106, feeding screw; 107, feed valve; 108, discharge valve; 109, powder sprinkling motor; 110, paddle; 111, discharge hose; 112, cart. DETAILED DESCRIPTION

[0023] In order to make the technical problems, technical solutions and beneficial effects to be solved by this application more clearly understood, this application is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain this application and are not intended to limit this application.

[0024] It should be noted that when an element is referred to as being “fixed on” or “disposed on” another element, it may be directly on the other element or indirectly on the other element. When an element is referred to as being “connected to” another element, it may be directly connected to the other element or indirectly connected to the other element.

[0025] It should be understood that the terms "length", "width", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the accompanying drawings, and are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on this application.

[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 the technical features being referred to. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the features. Throughout the description of this application, "plurality" means two or more, unless otherwise specifically defined.

[0027] Please also refer to Figure 1 and Figure 2 The following describes an automatic powder-sprinkling device for a coating machine provided in an embodiment of the present application. The automatic powder-sprinkling device for a coating machine includes a powder-feeding tank 101, a powder-sprinkling tank 102, an electronic scale 104, a feeding assembly, a valve assembly, and a control system. Specifically:

[0028] The powder feeding tank 101 is used to store powder; the powder sprinkling tank 102 forms a powder sprinkling chamber 103 that is connected to the powder feeding tank 101 and capable of regulating pressure; an electronic scale 104 is located at the bottom of the powder sprinkling tank 102 and is used to weigh the powder sprinkling tank 102; the feeding assembly includes a powder feeding motor 105 and a feeding screw 106 that is transmission-connected to the powder feeding motor 105 and driven by the powder feeding motor 105 to convey the powder from the powder feeding tank 101 to the powder sprinkling chamber 103; the valve assembly includes a feed valve 107 and a discharge valve 108 that are connected to the powder sprinkling tank 102 and are used to control the feeding and discharging of the powder sprinkling tank 102; and a control system is respectively connected to the electronic scale 104, the powder feeding motor 105, the feed valve 107, and the discharge valve 108. In this embodiment, the feed valve 107 and the discharge valve 108 can both be pneumatic valves commonly used in the art.

[0029] According to the above structure provided in this embodiment, in the automatic powder sprinkling device for the coating machine provided in this embodiment, since the control system is respectively connected to the electronic scale 104 and the powder feeding motor 105 in communication, the total weight of the powder in the powder sprinkling chamber 103 and the weight of the material transported from the powder feeding tank 101 to the powder sprinkling tank 102 by the feeding screw 106 can be accurately measured. In this way, when the powder in the powder sprinkling chamber 103 reaches the target weight, the feeding of the feeding screw 106 can be stopped. In addition, since the control system is also connected to the feed valve 107 and the discharge valve 108 in communication, the powder sprinkling tank 102 can automatically open the feed port or the discharge port and complete the feeding operation or the pressurized powder sprinkling operation, effectively avoiding manual intervention and significantly improving the degree of automation in the powder sprinkling process, which is far superior to the existing technology.

[0030] In another embodiment of this application, please refer to Figure 1 and Figure 2 The control system also includes a touchscreen display (not shown in the accompanying drawings) for human-computer interaction. According to the structure provided in this embodiment, the touchscreen display provided in the control system can be used to input the required powder spreading amount or display the real-time weight in the powder spreading chamber 103, thereby further improving the automation level of the automatic powder spreading device of the coating machine in this embodiment.

[0031] In another embodiment of this application, please refer to Figure 1 and Figure 2The automatic powder-spreading device for the coating machine further includes a powder-spreading motor 109 connected to the powder-feeding tank 101 and a paddle 110 that is transmission-connected to the powder-spreading motor 109 and capable of stirring the powder in the powder-spreading chamber 103. The powder-spreading motor 109 is in communication with a control system. According to the above structure provided in this embodiment, the powder-spreading motor 109 can, under the control of the control system, distribute the powder in the powder-spreading chamber 103 more evenly through the paddle 110 disposed therein. This can further improve the accuracy of weight measurement in the powder-spreading chamber 103, thereby further improving the degree of automation of the automatic powder-spreading device for the coating machine in this embodiment.

[0032] In another embodiment of this application, please refer to Figure 1 and Figure 2 The automatic powder spreading device for a coating machine further includes a discharge hose 111 in communication with the powder spreading chamber 103. A discharge valve 108 is disposed on the discharge hose 111 and is used to control the on / off operation of the discharge hose 111. According to the structure provided in this embodiment, the discharge hose 111 can more conveniently spray the powder in the powder spreading chamber 103 to the target location, thereby achieving a better powder spreading effect for the automatic powder spreading device for a coating machine in this embodiment.

[0033] In another embodiment of this application, please refer to Figure 1 and Figure 2 The automatic powder sprinkling device for a coating machine further includes a conveniently movable cart 112, on which the powder feeding tank 101, the powder sprinkling tank, the electronic scale 104, the feeding assembly, and the valve assembly are all mounted. According to the above structure provided in this embodiment, the cart 112 enables the automatic powder sprinkling device for a coating machine provided in this embodiment to be more conveniently moved, thereby achieving a more flexible powder sprinkling effect.

[0034] The above description is only a preferred embodiment of the present application and is not intended to limit the present application. Any modifications, equivalent replacements and improvements made within the spirit and principles of the present application should be included in the scope of protection of the present application.

Claims

1. An automatic powder spreading device for a coating machine, characterized in that: include: A powder feeding tank (101) is used to store powder; A powder spreading tank (102) forms a powder spreading chamber (103) that is in communication with the powder feeding tank (101) and capable of regulating pressure; an electronic scale (104), located at the bottom of the powdering tank (102) and used to weigh the powdering tank (102); A feeding assembly comprising a powder feeding motor (105) and a feeding screw (106) connected to the powder feeding motor (105) and driven by the powder feeding motor (105) to transport the powder in the powder feeding tank (101) to the powder sprinkling chamber (103); A valve assembly, comprising a feed valve (107) and a discharge valve (108) connected to the powder spreading tank (102) and used to control the feeding and discharging of the powder spreading tank (102); A control system is communicatively connected to the electronic scale (104), the powder feeding motor (105), the feed valve (107) and the discharge valve (108), respectively.

2. The automatic powder spreading device for coating machine according to claim 1, characterized in that: The control system also includes a touch display screen for human-computer interaction.

3. The automatic powder spreading device for coating machine according to claim 1, characterized in that: The automatic powder-sprinkling device for the coating machine further comprises a powder-sprinkling motor (109) connected to the powder-feeding tank (101) and a paddle (110) that is transmission-connected to the powder-sprinkling motor (109) and capable of stirring the powder in the powder-sprinkling chamber (103); The powder spreading motor (109) is in communication connection with the control system.

4. The automatic powder spreading device for a coating machine according to claim 1, characterized in that: The automatic powder sprinkling device of the coating machine further includes a discharge hose (111) in communication with the powder sprinkling chamber (103); The discharge valve (108) is arranged on the discharge hose (111) and is used to control the on / off of the discharge hose (111).

5. The automatic powder spreading device for coating machine according to claim 1, characterized in that: The automatic powder spreading device for the coating machine further includes a trolley (112) for easy movement; The powder feeding tank (101), the powder spreading tank, the electronic scale (104), the feeding assembly, and the valve assembly are all installed on the cart (112).

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