Negative-pressure degassing packaging machine for superfine powder

Abstract

The utility model provides a superfine powder negative pressure degassing packaging machine, which relates to the technical field of powder packaging and comprises a vacuum bin body, an unpowered roller is arranged in the vacuum bin body and close to the bottom, a bag holder is mounted on the inner wall of the top of the vacuum bin body, a door rotating device is mounted on the top of the vacuum bin body, and a vacuum pump is mounted on the door rotating device. A feeding pipe penetrates through and is fixedly connected to the top of the vacuum bin body and located in the center of the door rotating device, a door opening and closing mechanism is installed on the outer arc wall of the door rotating device, a vacuum bin door is slidably installed on the outer arc wall of the vacuum bin body, one end of the door opening and closing mechanism is fixedly connected with the vacuum bin door rotating device, and the other end of the door opening and closing mechanism is fixedly connected with the vacuum bin door rotating device. A negative pressure switch is fixed to and communicates with the surface of the outer wall of the vacuum bin body. According to the utility model, the problems of material blockage of the filter screen, spiral blockage, incomplete degassing and the like can be solved.

Description

Technical Field

[0001] The utility model relates to the technical field of powder packaging, in particular to a negative pressure degassing packaging machine for ultra-fine powder. Background Art

[0002] Ultrafine gas-containing powder generally refers to powder with a mesh size of 4000 or above and a density of less than 0.4t / m³. This type of powder is extremely easy to be mixed with gas during transportation, feeding and conveying, and after being mixed with gas, it takes a long time of natural settling to discharge the mixed gas, which is not conducive to the packaging, stacking and storage of powder. For example, due to too much gas mixed in, the packaging bag cannot be loaded with enough weight of materials, resulting in increased packaging bag usage costs for users; because the packaging bag is too bulging, the stacking cannot be formed or even cannot be stacked; due to thermal expansion and contraction, the packaging bag expands, causing the packaging bag to "explode" during transportation; therefore, it is particularly important to remove the gas inside the gas-containing powder.

[0003] The existing degassing method for powders is mainly extrusion degassing, that is, in the process of feeding the powders into the packaging bag, the volume of the powders is slowly compressed by the variable pitch spiral, so that the gas in the powders is precipitated through the filter screen on the inner wall of the spiral tube to achieve the purpose of degassing. However, this degassing method has many disadvantages. First, the filter screen on the inner wall of the spiral tube is easily blocked, resulting in poor degassing effect; second, the gas content of the powders in the production process is not fixed. Sometimes when the gas content is small, the compressible amount of the powder is very small, which does not match the fixed compression amount of the variable pitch spiral, resulting in excessive compression of the powders and clogging of the spiral. Sometimes when the powders contain a lot of gas, the degassing is not thorough and cannot meet the packaging, palletizing and transportation requirements. Utility Model Content

[0004] The utility model aims to solve the problems of incomplete degassing and high production failure rate in the existing degassing technology and to provide a negative pressure degassing packaging machine for ultra-fine powder.

[0005] In order to achieve the above-mentioned purpose, the utility model adopts the following technical scheme: a negative pressure degassing packaging machine for ultrafine powder, comprising a vacuum bin body, an unpowered roller is arranged inside the vacuum bin body and near the bottom, a bag clamp is installed on the top inner wall of the vacuum bin body, a door rotating device is installed on the top of the vacuum bin body, a feeding pipe is penetrated and fixedly connected at the top of the vacuum bin body and at the center of the door rotating device, a door opening and closing mechanism is installed on the outer arc wall of the door rotating device, a vacuum bin door is slidably installed on the outer arc wall of the vacuum bin body, one end of the door opening and closing mechanism is fixedly connected to the vacuum bin door rotating device, and a negative pressure switch is fixed and connected to the outer wall surface of the vacuum bin body.

[0006] Preferably, connecting plates are installed at both ends of the unpowered roller, the bottoms of the connecting plates at both ends of the unpowered roller are fixedly connected to support members, and the bottom of the support member below the unpowered roller is fixedly connected to the bottom inner wall of the vacuum chamber body.

[0007] Preferably, a sealing strip is installed on the door frame of the vacuum chamber body.

[0008] Preferably, the bottom end of the feeding pipe is located at the center of the bag clamp.

[0009] Preferably, a material stop valve is installed on the top of the vacuum bin body and below the feed pipe.

[0010] Preferably, a U-shaped door handle is fixedly connected to the outer arc wall surface of the vacuum chamber door.

[0011] Compared with the prior art, the advantages and positive effects of the utility model are:

[0012] In the utility model, the packaging bag is manually covered with a bag clamp to clamp the packaging bag, and the ultrafine gas-containing powder enters the packaging bag through the feeding port, and the U-shaped door handle is manually pushed to make the door rotating device drive the vacuum chamber door to rotate. After rotating to the right position, the door opening and closing mechanism pulls the door back inward to make the vacuum chamber door fit tightly with the sealing strip, and the material stop valve is closed at the same time, thereby the vacuum chamber body, the vacuum chamber door, the sealing strip and the material stop valve are combined to form a closed space, and then the negative pressure switch is turned on to start the vacuum pumping operation on the closed space, so as to extract the gas inside the powder in the packaging bag, realize the degassing function of the ultrafine gas-containing powder, and solve the problems of filter screen blockage, spiral blockage, and incomplete degassing. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 This is a front view of the overall structure of the ultra-fine powder negative pressure degassing packaging machine proposed by the utility model;

[0014] Figure 2 This is a side view of the overall structure of the ultra-fine powder negative pressure degassing packaging machine proposed by the utility model;

[0015] Figure 3 This is a top view of the overall structure of the ultra-fine powder negative pressure degassing packaging machine proposed by the utility model;

[0016] Figure 4 The utility model provides a three-dimensional diagram of the overall structure of a superfine powder negative pressure degassing packaging machine.

[0017] Legend: 1. Unpowered roller; 2. Vacuum chamber body; 3. Bag clamp; 4. Sealing strip; 5. Door rotating device; 6. Feed pipe; 7. Door opening and closing mechanism; 8. Vacuum chamber door; 9. Material stop valve; 10. Negative pressure switch. DETAILED DESCRIPTION

[0018] In order to more clearly understand the above-mentioned purpose, features and advantages of the utility model, the utility model is further described below in conjunction with the accompanying drawings and embodiments. It should be noted that the embodiments of the present application and the features in the embodiments can be combined with each other without conflict.

[0019] In the following description, many specific details are set forth to facilitate a full understanding of the present invention. However, the present invention may also be implemented in other ways than those described herein. Therefore, the present invention is not limited to the specific embodiments of the following disclosure.

[0020] Embodiment 1, as Figure 1-4 As shown, the utility model provides a negative pressure degassing packaging machine for ultrafine powder, including a vacuum bin body 2, an unpowered roller 1 is arranged inside the vacuum bin body 2 and near the bottom, a bag clamp 3 is installed on the top inner wall of the vacuum bin body 2, a door rotating device 5 is installed on the top of the vacuum bin body 2, a feeding pipe 6 is penetrated and fixedly connected at the top of the vacuum bin body 2 and at the center of the door rotating device 5, a door opening and closing mechanism 7 is installed on the outer arc wall of the door rotating device 5, a vacuum bin door 8 is slidably installed on the outer arc wall of the vacuum bin body 2, one end of the door opening and closing mechanism 7 is fixedly connected to the top of the vacuum bin door 8, and a negative pressure switch 10 is fixed and connected to the outer wall surface of the vacuum bin body 2.

[0021] The effect achieved by the entire embodiment 1 is that a non-powered roller 1 is provided inside the vacuum bin body 2 and near the bottom, which can facilitate the sliding out of the packaged packaging bag; a bag clamp 3 is installed on the top inner wall of the vacuum bin body 2, which can clamp the packaging bag; a door rotating device 5 is installed on the top of the vacuum bin body 2, and a feeding pipe 6 is penetrated and fixedly connected at the top of the vacuum bin body 2 and located at the center of the door rotating device 5; a door opening and closing mechanism 7 is installed on the outer arc wall of the door rotating device 5; a vacuum bin door 8 is slidably installed on the outer arc wall of the vacuum bin body 2; one end of the door opening and closing mechanism 7 is fixedly connected to the top of the vacuum bin door 8, so that the door rotating device 5 can drive the vacuum bin door 8 to move and close through the door opening and closing mechanism 7; a negative pressure switch 10 is fixed and connected to the outer wall surface of the vacuum bin body 2, which can control the extraction of gas inside the vacuum bin body 2.

[0022] Embodiment 2, as Figure 1-4 As shown, connecting plates are installed at both ends of the unpowered roller 1, and the bottom of the connecting plates at both ends of the unpowered roller 1 is fixedly connected to support members, and the bottom of the support member below the unpowered roller 1 is fixedly connected to the bottom inner wall of the vacuum bin body 2; the door frame of the vacuum bin body 2 is installed with a sealing strip 4; the bottom end of the feed pipe 6 is located at the center of the bag clamp 3; a material shut-off valve 9 is installed on the top of the vacuum bin body 2 and below the feed pipe 6; a U-shaped door handle is fixedly connected to the outer arc wall surface of the vacuum bin door 8.

[0023] The effect achieved by the entire embodiment 2 is that connecting plates are installed at both ends of the unpowered roller 1, and the bottom of the connecting plates at both ends of the unpowered roller 1 is fixedly connected to a support member, and the bottom of the support member below the unpowered roller 1 is fixedly connected to the bottom inner wall of the vacuum bin body 2, which can play the effect of supporting the unpowered roller 1; a sealing strip 4 is installed through the door frame of the vacuum bin body 2, which can improve the sealing between the vacuum bin door 8 and the vacuum bin body 2; the bottom end of the feed pipe 6 is located at the center of the bag clamp 3, which can make the ultrafine powder pass through the feed pipe 6 and be poured into the packaging bag clamped by the bag clamp 3; a material stop valve 9 is installed through the top of the vacuum bin body 2 and below the feed pipe 6, which can make the material stop valve 9 control the opening and closing of the feed pipe 6; a U-shaped door handle is fixedly connected to the outer arc wall surface of the vacuum bin door 8, which can achieve the effect of manually pulling the vacuum bin door 8 to rotate.

[0024] Working principle: manually put the bag clamp 3 on the packaging bag to clamp the packaging bag, and the ultra-fine gas-containing powder enters the packaging bag through the feeding pipe 6. Manually push the U-shaped door handle to make the door rotating device 5 drive the vacuum chamber door 8 to rotate. After rotating to the right position, the door opening and closing mechanism 7 pulls the door back inward to make the vacuum chamber door 8 fit tightly with the sealing strip 4. At the same time, the material stop valve 9 is closed. Thus, the vacuum chamber body 2, the vacuum chamber door 8, the sealing strip 4, and the material stop valve 9 are combined to form a closed space. Then the negative pressure switch 10 is turned on to start the vacuum operation of the closed space, and the gas inside the powder in the packaging bag is extracted to realize the degassing function of the ultra-fine gas-containing powder. After the degassing is completed, the bag clamp 3 is opened to make the packaging bag fall into the unpowered roller 1, and the packaging bag is manually sent to the next process.

[0025] The wiring diagram of the bag clamp 3, the door rotating device 5, the door opening and closing mechanism 7, the material stop valve 9 and the negative pressure switch 10 in the utility model belongs to the common knowledge in the field, and its working principle is a well-known technology. The model is selected according to the actual use. Therefore, the control method and wiring arrangement of the bag clamp 3, the door rotating device 5, the door opening and closing mechanism 7, the material stop valve 9 and the negative pressure switch 10 are no longer explained in detail.

[0026] The above description is only a preferred embodiment of the present invention and does not limit the present invention in other forms. Any technician familiar with the profession may use the technical content disclosed above to change or modify it into an equivalent embodiment with equivalent changes and apply it to other fields. However, any simple modification, equivalent change and modification made to the above embodiment based on the technical essence of the present invention without departing from the content of the technical solution of the present invention still falls within the protection scope of the technical solution of the present invention.

Claims

1. A negative pressure degassing packaging machine for ultrafine powder, comprising a vacuum chamber (2), characterized in that: An unpowered roller (1) is provided inside and near the bottom of the vacuum bin body (2); a bag clamp (3) is installed on the inner wall of the top of the vacuum bin body (2); a door rotating device (5) is installed on the top of the vacuum bin body (2); a feeding pipe (6) is passed through and fixedly connected to the top of the vacuum bin body (2) and located at the center of the door rotating device (5); a door opening and closing mechanism (7) is installed on the outer arc wall of the door rotating device (5); a vacuum bin door (8) is slidably installed on the outer arc wall of the vacuum bin body (2); one end of the door opening and closing mechanism (7) is fixedly connected to the top of the vacuum bin door (8); and a negative pressure switch (10) is fixedly connected to and connected to the outer wall surface of the vacuum bin body (2).

2. The ultrafine powder negative pressure degassing packaging machine according to claim 1, characterized in that: Both ends of the unpowered roller (1) are provided with connecting plates, the bottoms of the connecting plates at both ends of the unpowered roller (1) are fixedly connected to supporting members, and the bottom of the supporting member below the unpowered roller (1) is fixedly connected to the bottom inner wall of the vacuum chamber body (2).

3. The ultrafine powder negative pressure degassing packaging machine according to claim 1, characterized in that: The door frame of the vacuum chamber body (2) is installed with a sealing strip (4).

4. The ultrafine powder negative pressure degassing packaging machine according to claim 1, characterized in that: The bottom end of the feeding pipe (6) is located at the center of the bag clamp (3).

5. The ultrafine powder negative pressure degassing packaging machine according to claim 1, characterized in that: A material stop valve (9) is installed on the top of the vacuum bin body (2) and below the feed pipe (6).

6. The ultrafine powder negative pressure degassing packaging machine according to claim 1, characterized in that: A U-shaped door handle is fixedly connected to the outer arc wall surface of the vacuum chamber door (8).

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