A circular powdering device

Abstract

The utility model discloses a kind of circulating powder scattering devices, including rack, powder scattering assembly and the powder bin of containing powder are provided on the rack;The powder scattering assembly includes the rotating shaft of motor transmission connection, more than two powder scoops are provided on the rotating shaft, and the powder cavity of containing powder is provided on the powder scoop;The outside of the powder scattering assembly is provided with powder bin, the bottom of the powder bin is the bin bottom of arc structure, and the arc center of the bin bottom coincides with the axis of rotating shaft.The utility model uses circulating powder scattering structure, with the advantages of simple structure, high reliability, low manufacturing cost and easy to maintain.

Description

Technical Field

[0001] This utility model relates to the field of powder spreading technology, and in particular to a circulating powder spreading device. Background Technology

[0002] Heat transfer printing, also known as heat printing, generally involves printing a pattern onto a powder-receiving substrate using a digital printer, then applying hot melt powder onto the substrate using a powder-spreading device, cleaning the powder outside the pattern using a powder-shaking device, then heating the substrate in a curing machine to melt the hot melt powder onto the pattern, cooling it to obtain a release film with the pattern, and finally transferring the pattern onto the fabric using a heat transfer machine.

[0003] In the existing technology, after the hot melt powder outside the powder pattern is cleaned off by the powder shaking device, the hot melt powder is sent back to the powder dispensing box by the blower under air pressure. However, the blower will generate noise and vibration during operation, which will have a certain impact on the working environment. Moreover, it has the disadvantages of complex structure and high manufacturing cost.

[0004] Therefore, there is an urgent need to design a circulating powder spreading device, which adopts a circulating powder spreading structure to simplify the structure and reduce manufacturing costs. Utility Model Content

[0005] In order to overcome the shortcomings of the prior art, the technical solution adopted by this utility model is as follows:

[0006] A circulating powder spreading device, characterized in that: it includes a frame, on which a powder spreading component and a powder hopper for containing powder are provided;

[0007] The powder-spreading assembly includes a rotating shaft that is connected to a motor drive, and two or more powder scoops are provided on the rotating shaft. Each powder scoop has a powder cavity for receiving powder.

[0008] The powder dispensing component has a powder hopper on its outer side. The bottom of the powder hopper has an arc-shaped bottom, and the center of the arc of the bottom coincides with the axis of the rotating shaft.

[0009] Preferably, the powder-spreading assembly includes two rotating shafts arranged in parallel, one above the other and a conveying assembly, wherein either rotating shaft is connected to a motor for transmission; the conveying assembly includes two rotating wheels that are fixedly connected to the upper and lower rotating shafts respectively, and the two rotating wheels are connected by a transmission belt with a ring structure, wherein a plurality of powder scoops are provided on the transmission belt.

[0010] Preferably, there are two conveying components, and the two ends of the powder scoop are respectively fixedly connected to the drive belts of the two conveying components.

[0011] Preferably, the transmission belt is a chain or a timing belt.

[0012] Preferably, a powder hopper is provided on the bottom of the powder hopper, extending upward and outward from the bottom of the hopper. With the direction of gravity as the projection direction, the projected outline of the motion envelope of the powder scoop is located within the projected outline of the powder hopper and the powder hopper.

[0013] Preferably, the powder bag is tangent and continuous with the bottom of the silo.

[0014] Preferably, the powder hopper is provided with an openable powder filling cover.

[0015] Preferably, casters are provided at the bottom of the frame.

[0016] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0017] It adopts a circulating powder-spreading structure, which has the advantages of simple structure, high reliability, low manufacturing cost and easy maintenance. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the overall structure of this utility model (without powder receiving body);

[0019] Figure 2 This is a front structural schematic diagram of the present invention (without powder receiving body);

[0020] Figure 3 yes Figure 2 A cross-sectional view of AA (with powder receiving material);

[0021] Explanation of reference numerals in the attached figures:

[0022] Frame 10, powder filling cover 11, powder spreading component 20, rotating shaft 21, rotating wheel 22, transmission belt 23, powder scoop 24, powder chamber 24a, powder hopper 30, hopper bottom 31, powder bag 32, motor 40, casters 50, powder receiving body 60. Detailed Implementation

[0023] To facilitate understanding of this utility model, a more complete description will be given below with reference to the accompanying drawings. Preferred embodiments of this utility model are shown in the drawings. However, this utility model can be implemented in many different forms and is not limited to the embodiments described herein. Rather, these embodiments are provided to provide a more thorough and complete understanding of the disclosure of this utility model.

[0024] It should be noted that when a component is said to be "fixed" to another component, it can be directly attached to the other component or there may be an intervening component. When a component is said to be "connected" to another component, it can be directly connected to the other component or there may be an intervening component. The terms "vertical," "horizontal," "left," "right," "up," "down," and similar expressions used in this document are for illustrative purposes only.

[0025] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.

[0026] The present invention will now be further described in conjunction with the accompanying drawings and specific embodiments:

[0027] like Figures 1-3 As shown, a circulating powder spreading device includes a frame 10, on which a powder spreading component 20 and a powder hopper 30 for containing powder are provided;

[0028] The powder-spreading assembly 20 includes a rotating shaft 21 that is connected to the motor 40 for transmission. The rotating shaft 21 is provided with two or more powder scoops 24, and the powder scoops 24 are provided with powder cavities 24a for receiving powder.

[0029] The powder dispensing component 20 has a powder hopper 30 on its outer side. The bottom of the powder hopper 30 is a hopper bottom 31 with an arc-shaped structure. The center of the arc of the hopper bottom 31 coincides with the axis of the rotating shaft 21.

[0030] This embodiment takes the application of hot melt powder (powder) in the heat transfer process as an example. In use, the powder is first placed into the powder hopper 30, and the motor 40 is started. The motor 40 drives the rotating shaft 21 and the powder scoop 24 to rotate. When the powder scoop 24 rotates to the bottom 31 of the hopper, the powder enters the powder cavity 24a of the powder scoop 24. When the powder scoop 24 rotates to a higher position, under the action of centrifugal force and gravity, the powder is sprinkled out from the powder cavity 24a, causing the powder to contact and adhere to the receiving powder 60. Powder that is not adhered to the receiving powder 60 falls back into the bottom 31 of the hopper, achieving cyclic powder application.

[0031] Furthermore, such as Figure 3 As shown, in order to improve the powder spreading height and spreading range, the powder spreading component 20 includes two rotating shafts 21 arranged in parallel, one above the other and a conveying component, wherein any one of the rotating shafts 21 is connected to the motor 40 for transmission; the conveying component includes two rotating wheels 22 that are fixedly connected to the upper and lower rotating shafts 21 respectively, and the two rotating wheels 22 are connected by a transmission belt 23 with a ring structure, and a plurality of powder scoops 24 are provided on the transmission belt 23.

[0032] Furthermore, in the heat transfer printing process, the width of the powder receiving area can reach over one meter. To achieve good powder distribution uniformity and stability during this wide powder application process, such as... Figure 2 , 3As shown, there are two conveying components, and the two ends of the powder scoop 24 are respectively fixedly connected to the transmission belts 23 of the two conveying components.

[0033] Furthermore, the transmission belt 23 is a chain or a timing belt.

[0034] The transmission belt 23 can be a chain or a synchronous belt to maintain good consistency between the transmission belts 23 of the two transmission components and prevent the powder scoop 24 from shifting. In this embodiment, in order to improve the stability of operation in the powder environment, a chain is selected as the transmission belt 23.

[0035] Furthermore, to prevent powder from falling outside the powder hopper 30 during the powder application process, a powder hopper 32 extending upward and outward from the bottom 31 of the powder hopper 30 is provided. With the direction of gravity as the projection direction, the projection outline of the motion envelope of the powder scoop 24 is located within the projection outline of the powder hopper 30 and the powder hopper 32.

[0036] Furthermore, in order to allow the fallen powder to quickly flow back to the bottom of the bin 31, the powder hopper 32 is tangentially continuous with the bottom of the bin 31.

[0037] Furthermore, in order to facilitate the addition of powder when the powder in the powder hopper 30 is insufficient, an openable powder filling cover 11 is provided on the top of the powder hopper 30.

[0038] Furthermore, for ease of movement, casters 50 are provided at the bottom of the frame 10.

[0039] The above description is the preferred embodiment of this utility model. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the principle of this utility model, and these improvements and modifications are also considered to be within the protection scope of this utility model.

Claims

1. A circulating powder spreading device, characterized in that: Includes a frame (10), on which a powder-spreading assembly (20) and a powder hopper (30) for containing powder are provided; The powder-spreading assembly (20) includes a rotating shaft (21) that is connected to a motor (40) for transmission. The rotating shaft (21) is provided with two or more powder scoops (24), and the powder scoops (24) are provided with powder cavities (24a) for receiving powder. The powder dispensing component (20) has a powder hopper (30) on its outer side. The bottom of the powder hopper (30) is a hopper bottom (31) with an arc-shaped structure. The center of the arc of the hopper bottom (31) coincides with the axis of the rotating shaft (21).

2. The circulating powder spreading device as described in claim 1, characterized in that: The powder-spreading assembly (20) includes two rotating shafts (21) arranged in parallel, one above the other, and a conveying assembly. Either rotating shaft (21) is connected to a motor (40) for transmission. The conveying assembly includes two rotating wheels (22) that are fixedly connected to the upper and lower rotating shafts (21) respectively. The two rotating wheels (22) are connected by a transmission belt (23) with a ring structure. Several powder scoops (24) are provided on the transmission belt (23).

3. The circulating powder spreading device as described in claim 2, characterized in that: Two conveying components are provided, and the two ends of the powder scoop (24) are fixedly connected to the transmission belts (23) of the two conveying components respectively.

4. The circulating powder spreading device as described in claim 2, characterized in that: The transmission belt (23) is a chain or a synchronous belt.

5. The circulating powder spreading device as described in claim 1, characterized in that: The powder hopper (30) has a powder hopper (32) extending upward and outward from the bottom (31) of the hopper. With the direction of gravity as the projection direction, the projection outline of the motion envelope of the powder scoop (24) is located within the projection outline of the powder hopper (30) and the powder hopper (32).

6. The circulating powder spreading device as described in claim 5, characterized in that: The powder bag (32) is tangent and continuous with the bottom of the warehouse (31).

7. The circulating powder spreading device as described in claim 1, characterized in that: An openable powder filling cover (11) is provided above the powder hopper (30).

8. The circulating powder spreading device as described in claim 1, characterized in that: Casters (50) are provided on the underside of the frame (10).

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