Air-blowing negative pressure chuck and air-blowing material taking device

Abstract

The utility model relates to material conveying technical field, specifically disclose a kind of blow formula negative pressure chuck and blow formula material taking device, including blow formula negative pressure chuck, material taking box, feeding pipe, outlet tube and air pump;Feeding pipe is used to communicate material taking box and blow formula negative pressure chuck;Outlet tube is communicated with material taking box, for excluding blow formula negative pressure chuck injection air to material taking box, and the connecting end head of outlet tube and material taking box is equipped with isolation net. Feeding pipe and the one end of outlet tube and material taking box communication are all provided with blow hole. Material taking hole is set up on material taking box, and the closure cover of the closure material taking hole is installed on material taking hole by driving element;By the setting of blow formula negative pressure chuck, there is no defect that safety hazard caused by pyrotechnic composition to stay in pump body, and material taking box, outlet tube, isolation net setting can make pyrotechnic composition gather in material taking box, and flow out through material taking hole in material taking box, to complete the pipelined material taking of pyrotechnic composition.

Description

Technical Field

[0001] This utility model relates to the field of material conveying technology, specifically to a blow-type negative pressure suction cup and a blow-type material handling device. Background Technology

[0002] In the process of picking up and conveying granular or powdery materials, negative pressure pipelines can be used for quantitative conveying and picking up materials. However, in the existing common negative pressure pipeline picking devices, the pump body that generates power is generally located in the middle or at the end of the pipeline. The operation of the pump body creates negative pressure at the end of the pipeline, thereby effectively sucking up and conveying the material. However, during the fireworks production process, fireworks gunpowder or fireworks gunpowder are dangerous flammable materials. If the above-mentioned conveying method is used to pick up the materials, the fireworks gunpowder or fireworks gunpowder may enter the pump body and remain in the pump body, thus causing safety hazards. However, pipeline negative pressure conveying and material handling is an efficient conveying and material handling method applied to granular or powdery materials. In order to enable the negative pressure pipeline conveying and material handling of fireworks gunpowder or fireworks gunpowder, we provide a blowing negative pressure suction cup and a blowing material handling device. Utility Model Content

[0003] To address the shortcomings of existing technologies, this utility model provides an air-blowing negative pressure suction cup and an air-blowing material handling device.

[0004] The present invention relates to a blow-type negative pressure suction cup comprising: an upper outer cylinder, wherein an installation cavity is provided around the bottom of the inner wall of the upper outer cylinder; The lower outer cylinder has its top connected to the bottom of the mounting cavity of the upper outer cylinder, and the top of the inner wall of the lower outer cylinder is provided with a mounting groove. The inner cylinder includes a connecting ring portion and a supporting ring portion in sequence. The diameter of the connecting ring portion is adapted to the diameter of the mounting cavity, and the diameter of the supporting ring portion is adapted to the diameter of the mounting groove. The bottom of the connecting ring, the outer wall of the supporting ring, the inner wall of the mounting cavity, and the bottom of the lower outer cylinder form a sealed air cavity, and the inner walls of the upper outer cylinder, the lower outer cylinder, and the inner cylinder form a negative pressure channel. The inner wall of the upper outer cylinder is provided with an air injection hole that communicates with the sealed air chamber. The connecting ring is provided with several air gaps for connecting the negative pressure channel and the sealed air chamber. The side of the air gap that communicates with the negative pressure channel is provided as an air outlet, and the air outlet is set upward.

[0005] The support ring has an inverted frustum ring surface at the top near the inner wall, and the air outlet is located on the inverted frustum ring surface.

[0006] The inner wall connecting the upper outer cylinder to the top of the sealed air chamber is set in the form of a frustum of a circle, and the lower bottom edge of the frustum of a circle coincides with the upper bottom edge of the inverted frustum of a circle of the inner cylinder.

[0007] Several air gaps are distributed around the outside of the connecting ring, and the air gaps are open at the outer edge of the connecting ring.

[0008] Sealing grooves are provided on the outer edge of the top of the connecting ring and the outer edge of the bottom of the support ring, and a sealing ring is provided inside the sealing groove.

[0009] The inner wall of the lower outer cylinder, located below the inner cylinder, is funnel-shaped; the inner wall of the upper outer cylinder, which contacts the top of the truncated circular surface, forms a cylindrical cavity.

[0010] An air-blowing material handling device includes the aforementioned air-blowing negative pressure suction cup, material handling box, feeding pipe, air outlet pipe, and air pump; The feeding pipe is used to connect the material receiving box and the air-blowing negative pressure suction cup; The air outlet pipe is connected to the material receiving box and is used to remove the air injected into the material receiving box by the air-blowing negative pressure suction cup. The connection end of the air outlet pipe and the material receiving box is equipped with an isolation net, and the end of the air outlet pipe is equipped with a dust removal mechanism.

[0011] The feeding pipe and the air outlet pipe are both provided with air blowing holes at the ends that connect to the material receiving box.

[0012] The material receiving box has a material receiving hole, and a closing cover plate that can close the material receiving hole is installed on the material receiving hole by a driving component.

[0013] The material receiving box has a storage chamber inside, the material receiving hole is located at the bottom of the material receiving box, and the feeding pipe and the air outlet pipe are both installed at the top of the material receiving box.

[0014] Compared with the prior art, the beneficial effects of this utility model are as follows: 1. The air-blowing negative pressure suction cup of this utility model connects the air injection hole to the sealed air chamber, and the sealed air chamber is connected to the negative pressure channel through the air gap opened around the inner cylinder. The air outlet of the air gap is located on the inverted truncated ring surface. When air is blown in through the air injection hole, the gas will surge upwards to the center of the negative pressure channel through the air outlet, thereby forming a negative pressure in the negative pressure channel below the inverted truncated ring surface. When the negative pressure area at the bottom of the air-blowing negative pressure suction cup comes into contact with the material, it will suck up the material. That is, the negative pressure suction cup using this device will not have the safety hazard caused by the residue of fireworks gunpowder in the pump body.

[0015] 2. The air-blowing material handling device of this utility model, through the setting of the air-blowing negative pressure suction cup, does not have the defects of safety hazards caused by the retention of fireworks gunpowder in the pump body. The setting of material handling box, air outlet pipe and isolation net allows the fireworks gunpowder to accumulate in the material handling box and flow out through the material handling hole in the material handling box, thereby completing the pipeline material handling of fireworks gunpowder. Attached Figure Description

[0016] The accompanying drawings, which are included to provide a further understanding of this application and form part of this application, illustrate exemplary embodiments and are used to explain this application, but do not constitute an undue limitation of this application. In the drawings: Figure 1 This is a schematic diagram of the exploded structure of a blow-type negative pressure suction cup; Figure 2 This is a schematic diagram of the exploded cross-sectional structure of a blow-type negative pressure suction cup; Figure 3 This is a schematic diagram of the front section structure of a blow-type negative pressure suction cup; Figure 4 This is a schematic diagram of the air-blowing material handling device. Figure 5 This is a schematic diagram of the material handling box structure of the air-blowing material handling device.

[0017] In the diagram: 7701, feeding pipe; 702, vent pipe; 703, Air-blowing negative pressure suction cup; 7031, Upper outer cylinder; 70311, Mounting cavity; 70312, Air injection hole; 70313, Frustum-shaped annular surface; 7032, Lower outer cylinder; 70321, Mounting slot; 7033, Inner cylinder; 70331, Connecting ring; 70332, Supporting ring; 70333, Air gap; 70334, Frustum-shaped annular surface; 7034. Sealed air chamber; 7035. Sealing ring; 7036. Air outlet; 7037. Sealing groove 704. Feeding box; 7041. Feeding hole; 7042. Closing cover; 7043. Driving component; 705. Dust removal mechanism; 706. Air blowing hole. Detailed Implementation

[0018] The following drawings will disclose several embodiments of this utility model. For clarity, many physical details will be described in the following description. However, it should be understood that these physical details should not be used to limit this utility model. That is, in some embodiments of this utility model, these physical details are not essential. In addition, for the sake of simplicity, some conventional structures and components will be shown in the drawings in a simple schematic manner.

[0019] Furthermore, in this utility model, the use of terms such as "first" and "second" is for descriptive purposes only and does not specifically refer to any order or sequence, nor is it intended to limit the utility model. They are merely used to distinguish components or operations described with the same technical terms and should not be construed as indicating or implying their relative importance or implicitly specifying the number of indicated technical features. Therefore, a feature defined with "first" or "second" may explicitly or implicitly include at least one of those features. Additionally, the technical solutions of various embodiments can be combined with each other, but only if they are feasible for those skilled in the art. If a combination of technical solutions is contradictory or impossible to implement, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection claimed by this utility model.

[0020] Example 1: Please see Figures 1-3 The present invention relates to a blow-type negative pressure suction cup 703, comprising: The upper outer cylinder 7031 has an installation cavity 70311 circumferentially formed on the bottom of its inner wall; The lower outer cylinder 7032 has its top connected to the bottom of the mounting cavity 70311 of the upper outer cylinder 7031, and the top of the inner wall of the lower outer cylinder 7032 is provided with a mounting groove 70321. The inner cylinder 7033 includes a connecting ring portion 70331 and a supporting ring portion 70332 in sequence. The diameter of the connecting ring portion 70331 is adapted to the diameter of the mounting cavity 70311, and the diameter of the supporting ring portion 70332 is adapted to the diameter of the mounting groove 70321. A sealed air chamber 7034 is formed at the bottom of the connecting ring 70331, the outer wall of the supporting ring 70332, the inner wall of the mounting cavity 70311, and the bottom of the lower outer cylinder 7032. A negative pressure channel is formed on the inner wall of the upper outer cylinder 7031, the lower outer cylinder 7032, and the inner cylinder 7033. The inner wall of the upper outer cylinder 7031 is provided with an air injection hole 70312 that communicates with the sealed air chamber 7034. The connecting ring 70331 is provided with several air gaps 70333 for communicating with the negative pressure channel and the sealed air chamber 7034. The side of the air gap 70333 that communicates with the negative pressure channel is provided as an air outlet 7036, and the air outlet 7036 is set upward. The support ring 70332 has an inverted frustum annular surface 70334 near the top of the inner wall, and the air outlet 7036 is located on the inverted frustum annular surface 70334. The inner wall of the upper outer cylinder 7031, which is connected to the top of the sealed air chamber 7034, is provided with a frustum annular surface 70313, and the lower bottom edge of the frustum annular surface 70313 coincides with the upper bottom edge of the inverted frustum annular surface 70334 of the inner cylinder 7033. The inner wall of the lower outer cylinder 7032, located below the inner cylinder 7033, is funnel-shaped; the inner wall of the upper outer cylinder 7031, which contacts the top of the truncated circular annular surface 70313, forms a cylindrical cavity.

[0021] Working principle: By blowing air into the air injection port 70312, gas can enter the sealed air chamber 7034. Since the sealed air chamber 7034 is connected to the negative pressure channel through the air gap 70333 that surrounds the inner cylinder 7033, the gas in the sealed air chamber 7034 will enter the negative pressure channel through the air gap 70333. Because the air outlet 7036 of the air gap 70333 is located on the inverted frustum annular surface 70334, the gas entering the sealed air chamber 7034 will rise vertically towards the center of the negative pressure channel. Furthermore, because the inner wall connecting the upper outer cylinder 7031 and the top of the sealed air chamber 7034 is set as a right frustum annular surface 70313, the gas entering the negative pressure channel will further gather and rise towards the center of the channel, thereby creating a negative pressure in the negative pressure channel below the inverted frustum annular surface 70334. When the negative pressure area at the bottom of the blowing negative pressure suction cup 703 comes into contact with the material, it will suck up the material. Because the blowing-type negative pressure suction cup 703 uses blowing air to create negative pressure inside the negative pressure channel, the gas carrying the material will not pass through the pump body. Therefore, when the blowing-type negative pressure suction cup 703 is used in the extraction of fireworks gunpowder, there will be no safety hazards caused by fireworks gunpowder remaining in the pump body.

[0022] Furthermore, several air gaps 70333 are evenly distributed around the outside of the connecting ring 70331, which allows the gas in the sealed air chamber 7034 to enter the interior of the negative pressure channel evenly. Furthermore, the air gap 70333 is open at the outer edge of the connecting ring 70331. A sealing groove 7037 is provided at the outer edge of the top of the connecting ring 70331 and the outer edge of the bottom of the support ring 70332. A sealing ring 7035 is provided inside the sealing groove 7037. During the production of the inner cylinder 7033, the gap can be machined on the side of the connecting ring 70331, effectively reducing the machining difficulty of the air gap 70333. Furthermore, the sealing groove 7037 and sealing ring 7035 can seal the two ends of the inner cylinder 7033 that contact the inner wall of the mounting cavity 70311. The sealing groove 7037 and sealing ring 7035 on the connecting ring 70331, while sealing the edge of the mounting cavity 70311, also form a closed air outlet 7036, allowing the gas in the air gap 70333 to accumulate at the air outlet 7036 and enter the interior of the negative pressure channel.

[0023] Example 2: Please see Figures 1-5 A blowing-type material handling device includes the above-mentioned blowing-type negative pressure suction cup 703, as well as a material handling box 704, a feeding pipe 701, an air outlet pipe 702 and an air pump. The feeding pipe 701 is used to connect the feeding box 704 and the air-blowing negative pressure suction cup 703; The air outlet pipe 702 is connected to the material receiving box 704 and is used to remove the air injected into the material receiving box 704 by the air-blowing negative pressure suction cup 703. The connection end of the air outlet pipe 702 and the material receiving box 704 is equipped with an isolation net. The gap of the isolation net is smaller than the diameter of the material. The end of the air outlet pipe 702 is equipped with a dust removal mechanism 705. The dust removal mechanism 705 can be a filter bag with dust filtration function, etc.

[0024] Both the feeding pipe 701 and the air outlet pipe 702 have air blowing holes 706 at the ends that connect to the material collection box 704. By injecting gas into the air blowing holes 706 of the feeding pipe 701 and the air outlet pipe 702, air can be blown onto the edges of the isolation net, the feeding pipe 701 and the air outlet pipe 702. At this time, the fireworks gunpowder remaining in the air outlet pipe 702, the feeding pipe 701 near the end of the material collection box 704, and the fireworks gunpowder on the isolation net will be blown into the material collection box 704 to prevent the remaining fireworks gunpowder from falling.

[0025] The material receiving box 704 has a material receiving hole 7041. A closing cover plate 7042 that can close the material receiving hole 7041 is installed on the material receiving hole 7041 through a driving component 7043. The material receiving box 704 has a material storage cavity inside, and the material receiving hole 7041 is located at the bottom of the material receiving box 704. The feeding pipe 701 and the air outlet pipe 702 are both installed on the top of the material receiving box 704. In this embodiment, the driving component 7043 can be an electric telescopic rod, a telescopic cylinder, etc.

[0026] Working principle: Orient the air-blowing negative pressure suction cup 703 toward the fireworks gunpowder, and then start the air pump connected to the air-blowing negative pressure suction cup 703. The air pump blows air into the sealed air chamber 7034, so as in Embodiment 1, the air-blowing negative pressure suction cup 703 generates negative pressure to extract the fireworks gunpowder. The fireworks gunpowder will follow the gas from the gas outlet pipe 702 into the material collection box 704. Because the beginning of the gas outlet pipe 702 is equipped with an isolation net with a mesh smaller than that of the fireworks gunpowder, the fireworks gunpowder will accumulate in the material collection box 704 under the obstruction of the isolation net. Some loose fireworks gunpowder dust will pass through the isolation net and pass through the dust removal mechanism 705 with the gas. Thus, the fireworks gunpowder dust in the gas is removed in the dust removal mechanism 705, thereby effectively facilitating the gas discharge. After the initial extraction of the fireworks gunpowder is completed, the air pump connected to the negative pressure suction cup by the air blowing stops working, and then the air pump connected to the air blowing hole 706 is started, so that the fireworks gunpowder remaining in the air outlet pipe 702, the end of the feeding pipe 701 near the feeding box 704, and the fireworks gunpowder on the isolation net will be blown into the feeding box 704. Then, the drive unit 7043 is activated, which opens the material feeding hole 7041, causing the fireworks gunpowder in the material feeding box 704 to fall out automatically under the action of gravity, thus completing the pipeline material feeding of the fireworks gunpowder.

[0027] The above are merely embodiments of this utility model and are not intended to limit the scope of this utility model. Various modifications and variations can be made to this utility model by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principle of this utility model should be included within the scope of the claims of this utility model.

Claims

1. A blow-type negative pressure suction cup, characterized in that, include: The upper outer cylinder (7031) has an installation cavity (70311) circumferentially formed on the bottom of its inner wall. The lower outer cylinder (7032) has its top connected to the bottom of the mounting cavity (70311) of the upper outer cylinder (7031), and the top of the inner wall of the lower outer cylinder (7032) is provided with a mounting groove (70321). The inner cylinder (7033) includes a connecting ring portion (70331) and a supporting ring portion (70332) in sequence. The diameter of the connecting ring portion (70331) is adapted to the diameter of the mounting cavity (70311), and the diameter of the supporting ring portion (70332) is adapted to the diameter of the mounting groove (70321). A sealed air chamber (7034) is formed at the bottom of the connecting ring (70331), the outer wall of the supporting ring (70332), the inner wall of the mounting cavity (70311), and the bottom of the lower outer cylinder (7032). A negative pressure channel is formed on the inner wall of the upper outer cylinder (7031), the lower outer cylinder (7032), and the inner cylinder (7033). The inner wall of the upper outer cylinder (7031) is provided with an air injection hole (70312) that communicates with the sealed air chamber (7034). The connecting ring (70331) is provided with a number of air gaps (70333) for connecting the negative pressure channel and the sealed air chamber (7034). The side of the air gap (70333) that communicates with the negative pressure channel is provided as an air outlet (7036), and the air outlet (7036) is set upward.

2. The air-blowing negative pressure suction cup according to claim 1, characterized in that: The support ring (70332) has an inverted frustum annular surface (70334) at the top near the inner wall, and the air outlet (7036) is located on the inverted frustum annular surface (70334).

3. The air-blowing negative pressure suction cup according to claim 2, characterized in that: The inner wall connecting the top of the upper outer cylinder (7031) and the sealed air chamber (7034) is set in a frustum of a circle (70313), and the lower bottom edge of the frustum of a circle (70313) coincides with the upper bottom edge of the inverted frustum of a circle (70334) of the inner cylinder (7033).

4. A blowing-type negative pressure suction cup according to any one of claims 1-3, characterized in that: Several air gaps (70333) are distributed around the outside of the connecting ring portion (70331), and the air gaps (70333) are open at the outer edge of the connecting ring portion (70331).

5. The air-blowing negative pressure suction cup according to claim 4, characterized in that: A sealing groove (7037) is provided on the outer edge of the top of the connecting ring (70331) and the outer edge of the bottom of the support ring (70332), and a sealing ring (7035) is provided inside the sealing groove (7037).

6. The air-blowing negative pressure suction cup according to claim 5, characterized in that: The inner wall of the lower outer cylinder (7032) located below the inner cylinder (7033) is arranged in a trumpet shape; the inner wall of the upper outer cylinder (7031) that contacts the top of the truncated circular surface (70313) forms a cylindrical cavity.

7. A blowing-type material handling device, characterized in that: Includes the air-blowing negative pressure suction cup (703), material box (704), feeding pipe (701), air outlet pipe (702) and air pump as described in any one of claims 1-5; The feeding pipe (701) is used to connect the feeding box (704) and the air-blowing negative pressure suction cup (703). The air outlet pipe (702) is connected to the material receiving box (704) to remove the air injected into the material receiving box (704) by the air-blowing negative pressure suction cup (703). The connection end of the air outlet pipe (702) and the material receiving box (704) is provided with an isolation net, and the end of the air outlet pipe (702) is equipped with a dust removal mechanism (705).

8. The air-blowing material handling device according to claim 7, characterized in that: The feeding pipe (701) and the air outlet pipe (702) are both provided with an air blowing hole (706) at the end that is connected to the material receiving box (704).

9. The air-blowing material handling device according to claim 7, characterized in that: The material box (704) is provided with a material picking hole (7041), and a closing cover plate (7042) that can close the material picking hole (7041) is installed on the material picking hole (7041) by a drive component (7043).

10. The air-blowing material handling device according to claim 9, characterized in that: The material receiving box (704) has a material storage chamber inside, the material receiving hole (7041) is located at the bottom of the material receiving box (704), and the feeding pipe (701) and the air outlet pipe (702) are both installed at the top of the material receiving box (704).

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