Dust removal structure for feed opening of powder packaging machine

Abstract

The utility model discloses a dust removal structure for a feed opening of a powder packaging machine. Belongs to the technical field of packaging machine dust removal. According to the technical scheme, the discharging device comprises a discharging pipe of the packaging machine, a limiting ring is arranged on the portion, close to the end, of the lower end of the discharging pipe, the portion, above the limiting ring, of the discharging pipe is sleeved with a dust cover capable of moving up and down, and the diameter of the dust cover is 5-10 cm larger than the outer diameter of the discharging pipe; a dust suction pipe is arranged on one side of the dust cover and connected to external negative pressure equipment through a hose. In an initial state, the dustproof cover is placed on the limiting ring, and the bottom is not higher than the opening of the blanking pipe; the utility model aims to provide the dust removal structure for the feed opening of the powder packaging machine, which is simple in structure and reduces dust overflow; the device is used for dust removal of the powder packaging machine feed opening.

Description

Technical Field

[0001] The utility model relates to a dust removal structure, and more specifically, particularly to a dust removal structure for a feeding port of a powder packaging machine. Background Art

[0002] When packaging micron-grade powder products, since the products are tiny and light, the packaging machine is under air pressure, and the powder will fly everywhere during the packaging process. A thick layer of powder can fall around the packaging machine within a day, resulting in a waste of finished products and serious pollution to the surrounding environment. Utility Model Content

[0003] The utility model aims to provide a dust removal structure for a feeding port of a powder packaging machine which has a simple structure and reduces dust overflow in view of the above-mentioned deficiencies in the prior art.

[0004] The technical solution of the utility model is achieved as follows: a dust removal structure for a feed port of a powder packaging machine, comprising a feed port of the packaging machine, a limiting ring is provided at the proximal end of the lower end of the feed port, a dust cover which can move up and down is sleeved on the feed port above the limiting ring, the diameter of the dust cover is 5-10cm larger than the outer diameter of the feed port; a dust extraction pipe is provided on one side of the dust cover, and the dust extraction pipe is connected to an external negative pressure device through a hose; in the initial state, the dust cover is placed on the limiting ring and the bottom is not higher than the port of the feed port.

[0005] In the above-mentioned dust removal structure of the discharge port of a powder packaging machine, at least two hooks are provided at the upper end of the dust cover, and a hanging rod matching the hooks is provided on the outer wall of the discharge pipe; when the hooks and the hanging rod are matched, the distance between the lower end of the dust cover and the open end of the discharge pipe is 30-50cm.

[0006] In the above-mentioned dust removal structure of the discharge port of a powder packaging machine, a flange ring is provided at the open end of the discharge pipe, and a pressure ring is provided between the flange ring and the limiting ring; a plurality of through holes are provided on the limiting ring, and a guide rod matching the through holes is provided on the pressure ring, and a tensioning spring is provided on the guide rod; the inner diameter of the pressure ring is 1-2 cm larger than the outer diameter of the discharge pipe, and a clearance for placing the open end of the packaging bag is formed between the inner wall of the pressure ring and the outer wall of the discharge pipe.

[0007] In the above-mentioned dust removal structure for the feeding port of a powder packaging machine, a plurality of pressure relief holes are evenly distributed along the circumferential direction on the flange ring at the clearance gap.

[0008] In the above-mentioned dust removal structure for the feed port of a powder packaging machine, the dust cover includes two symmetrically arranged semicircular covers, and the dust extraction pipe is arranged on the side wall of one of the semicircular covers; fixing ears are provided on both sides of the semicircular covers, and the corresponding fixing ears on the two semicircular covers are connected by bolts.

[0009] After the utility model adopts the above structure, the dust cover is sleeved on the open end of the feeding pipe to prevent dust from flying outwards, and the dust is collected by connecting the dust extraction pipe to the external negative pressure equipment, which can effectively reduce the flying of dust and keep the surrounding environment clean and tidy. The dust cover is movably arranged on the dust extraction pipe, and when the bag opening of the packaging bag is matched with the feeding pipe, the dust cover can be pushed upwards to free up enough space. BRIEF DESCRIPTION OF THE DRAWINGS

[0010] The present invention will be further described in detail below in conjunction with the embodiments in the accompanying drawings, but this does not constitute any limitation to the present invention.

[0011] Figure 1 It is a structural schematic diagram of the utility model;

[0012] Figure 2 It is a structural schematic diagram of the main view of the utility model;

[0013] Figure 3 It is a structural schematic diagram of the feeding pipe of the utility model.

[0014] In the figure: 1. feeding pipe; 2. limiting ring; 3. dust cover; 3a. semicircular cover; 3b. fixing ear; 3c. bolt; 4. dust extraction pipe; 5. hose; 6. hook; 7. hanging rod; 8. flange ring; 9. pressure ring; 10. through hole; 11. guide rod; 12. tension spring; 13. pressure relief hole. DETAILED DESCRIPTION

[0015] See also Figure 1-3 As shown, the utility model is a dust removal structure for the discharge port of a powder packaging machine, including a discharge pipe 1 of the packaging machine, a limiting ring 2 is provided at the proximal end of the lower end of the discharge pipe 1, a dust cover 3 that can move up and down is sleeved on the discharge pipe 1 above the limiting ring 2, and the diameter of the dust cover 3 is 5-10cm larger than the outer diameter of the discharge pipe 1; a dust extraction pipe 4 is provided on one side of the dust cover 3, and the dust extraction pipe 4 is connected to an external negative pressure device through a hose 5; in the initial state, the dust cover 3 is placed on the limiting ring 2 and the bottom is not higher than the mouth of the discharge pipe 1. The dust cover sleeved at the open end of the discharge pipe prevents dust from flying outward, and the dust is recovered by connecting the dust extraction pipe to the external negative pressure device, which can effectively reduce the flying of dust and keep the surrounding environment clean and tidy. The dust cover is movably arranged on the dust extraction pipe, and when the bag mouth of the packaging bag is matched with the discharge pipe, the dust cover can be pushed upward to make enough space.

[0016] In this embodiment, at least two hooks 6 are provided at the upper end of the dust cover 3, and a hanging rod 7 matching with the hooks 6 is provided on the outer wall of the feeding tube 1; when the hooks 6 and the hanging rod 7 are matched, the distance between the lower end of the dust cover 3 and the open end of the feeding tube 1 is 30-50 cm. The dust cover is fixed on the upper side by the hooks and the hanging rod, which is convenient for matching and fixing the bag opening of the packaging bag with the feeding tube. The hooks are symmetrically arranged along the axis to prevent the hooks from being separated from the hanging rod due to shaking.

[0017] In this embodiment, preferably, the open end of the feeding tube 1 is provided with a flange ring 8, and a pressure ring 9 is provided between the flange ring 8 and the limiting ring 2; the limiting ring 2 is provided with a plurality of through holes 10, and the pressure ring 9 is provided with a guide rod 11 that matches the through holes 10, and a tension spring 12 is provided on the guide rod 11; the inner diameter of the pressure ring 9 is 1-2 cm larger than the outer diameter of the feeding tube 1, and a clearance for placing the open end of the packaging bag is formed between the inner wall of the pressure ring 9 and the outer wall of the feeding tube 1. In the existing loading process, the packaging bag is usually fixed by tying a rope after being set on the open end of the feeding tube, and the rope tying step is relatively cumbersome. By providing a pressure ring and a flange ring to cooperate with each other to clamp the open end of the packaging bag, the packaging bag can be assembled quickly.

[0018] Further preferably, the flange ring 8 at the clearance gap is evenly distributed with a plurality of pressure relief holes 13 along the circumferential direction. The pressure relief holes are provided to allow the packaging bag to circulate with the outside air, thereby preventing the pressure ring from pressing the opening end of the packaging bag too tightly, which makes it difficult for the gas in the packaging bag to be discharged and cause it to burst during loading.

[0019] In this embodiment, the dust cover 3 includes two symmetrically arranged semicircular covers 3a, and the dust extraction pipe 4 is arranged on the side wall of one of the semicircular covers 3a; fixing ears 3b are arranged on both sides of the semicircular covers 3a, and the corresponding fixing ears 3b on the two semicircular covers 3a are connected by bolts 3c. The dust cover is formed by combining two semicircular covers to facilitate the dust cover to be sleeved on the outer wall of the feeding pipe. A gasket made of flexible material can be arranged on the contact surface of the two semicircular covers to increase the sealing performance and prevent dust from escaping.

[0020] When working, push up the dust cover and hang it on the hanging rod, push up the pressure ring and put the packaging bag on the open end of the feeding pipe, insert the bag mouth into the clearance gap, loosen the pressure ring to press the bag mouth. Remove the dust cover from the hanging rod and move it to the limit ring, start the external negative pressure equipment to extract dust, and start the packaging machine to load.

[0021] The above embodiments are preferred implementation modes of the present invention and are only used to facilitate the explanation of the present invention. They are not intended to limit the present invention in any form. Any person with ordinary knowledge in the relevant technical field, if they do not depart from the scope of the technical features of the present invention, can make equivalent embodiments by partial changes or modifications to the technical contents disclosed in the present invention, and they still fall within the scope of the technical features of the present invention without departing from the technical features of the present invention.

Claims

1. A dust removal structure for a feeding port of a powder packaging machine, comprising a feeding pipe (1) of the packaging machine, characterized in that: A limiting ring (2) is provided at the proximal end of the lower end of the discharge pipe (1); a dust cover (3) that can move up and down is provided on the discharge pipe (1) above the limiting ring (2); the diameter of the dust cover (3) is 5-10 cm larger than the outer diameter of the discharge pipe (1); a dust extraction pipe (4) is provided on one side of the dust cover (3); the dust extraction pipe (4) is connected to an external negative pressure device through a hose (5); in an initial state, the dust cover (3) is placed on the limiting ring (2) and the bottom is not higher than the pipe opening of the discharge pipe (1).

2. A dust removal structure for a feeding port of a powder packaging machine according to claim 1, characterized in that: At least two hooks (6) are provided at the upper end of the dust cover (3), and a hanging rod (7) matching with the hooks (6) is provided on the outer wall of the discharge pipe (1); when the hooks (6) and the hanging rod (7) are matched, the distance between the lower end of the dust cover (3) and the open end of the discharge pipe (1) is 30-50 cm.

3. The dust removal structure for the feeding port of a powder packaging machine according to claim 1, characterized in that: The open end of the feed tube (1) is provided with a flange ring (8), and a pressure ring (9) is provided between the flange ring (8) and the limiting ring (2); a plurality of through holes (10) are provided on the limiting ring (2), and a guide rod (11) matching with the through holes (10) is provided on the pressure ring (9), and a tensioning spring (12) is provided on the guide rod (11); the inner diameter of the pressure ring (9) is 1-2 cm larger than the outer diameter of the feed tube (1), and a clearance for placing the open end of the packaging bag is formed between the inner wall of the pressure ring (9) and the outer wall of the feed tube (1).

4. A dust removal structure for a feeding port of a powder packaging machine according to claim 3, characterized in that: A plurality of pressure relief holes (13) are evenly distributed along the circumference of the flange ring (8) at the clearance gap.

5. The dust removal structure for the feeding port of a powder packaging machine according to claim 1, characterized in that: The dust cover (3) comprises two symmetrically arranged semicircular covers (3a), and the dust extraction pipe (4) is arranged on the side wall of one of the semicircular covers (3a); fixing ears (3b) are provided on both sides of the semicircular covers (3a), and the corresponding fixing ears (3b) on the two semicircular covers (3a) are connected by bolts (3c).

Images