Pneumatic conveying device for circumference detection of filter stick

Abstract

The utility model discloses a pneumatic conveying device for circumference detection of a filter stick, which comprises a first sliding chute, a cigarette distribution rotating wheel mechanism, a second sliding chute and a filter stick transverse conveying mechanism, the cigarette distribution rotating wheel mechanism is connected between the tail end of the first sliding chute and the head end of the second sliding chute, and the tail end of the second sliding chute is provided with the filter stick transverse conveying mechanism; the smoke distribution rotating wheel mechanism comprises a smoke distribution rotating drum, the smoke distribution rotating drum is rotationally arranged, corrugated grooves used for containing filter sticks are annularly formed in the circumference of the smoke distribution rotating drum, and negative pressure adsorption holes are formed in the corrugated grooves; the negative pressure adsorption hole adsorbs the filter sticks in the first sliding groove into the corrugated groove one by one through negative pressure and enables the filter sticks to fall into the second sliding groove one by one; the filter stick transverse conveying mechanism comprises a male cavity seat and a female cavity seat, an end seat is arranged at one end of the male cavity seat, a notch used for leading in a positive pressure air source is formed in the side portion of the end seat, an inner short pipe used for allowing a filter stick to penetrate through is arranged in the notch, and the female cavity seat is connected with the end seat. Therefore, the filter sticks are fed into the detection port one by one.

Description

A pneumatic conveying device for detecting the circumference of filter rods Technical Field

[0001] This utility model relates to the field of material feeding technology, specifically to a pneumatic conveying device for detecting the circumference of filter rods. Background Technology

[0002] During the production of filter rods, due to issues such as equipment stability and fluctuations in the quality of raw materials, filter rods with circumferential fluctuations may be produced during equipment maintenance and adjustment or auxiliary material trial runs. Therefore, it is necessary to inspect and sort the filter rods. This inspection and sorting process requires inserting each filter rod into an inspection port individually. However, existing conveying devices are insufficient to convey the incoming filter rods one by one into the inspection ports, necessitating manual handling. To overcome this technical problem, this invention provides a pneumatic conveying device for inspecting the circumference of filter rods. Summary of the Invention

[0003] The purpose of this invention is to provide a pneumatic conveying device for detecting the circumference of filter rods, thereby enabling the filter rods to be fed into the detection port one by one.

[0004] To solve the above-mentioned technical problems, the present invention adopts the following technical solution:

[0005] A pneumatic conveying device for detecting the circumference of a filter rod includes a first chute, a smoke-distributing rotary mechanism, a second chute, and a filter rod transverse conveying mechanism. The smoke-distributing rotary mechanism is connected between the end of the first chute and the beginning of the second chute, and the filter rod transverse conveying mechanism is provided at the end of the second chute.

[0006] The smoke-distributing rotary mechanism includes a smoke-distributing rotary cylinder, which is rotatable and has a corrugated groove on its circumference for accommodating the filter rod. Negative pressure adsorption holes are provided in the corrugated groove.

[0007] The negative pressure adsorption hole uses negative pressure to adsorb the filter rods in the first slide groove one by one into the corrugated groove, and then causes the filter rods to fall into the second slide groove one by one.

[0008] The filter rod transverse feeding mechanism includes a male cavity seat and a female cavity seat. One end of the male cavity seat is provided with an end seat, and the side of the end seat is provided with a slot for introducing a positive pressure air source. An inner short tube is provided in the slot for the filter rod to pass through. The female cavity seat is connected to the end seat, and an outer short tube is provided on the female cavity seat, with the outer short tube located directly in front of the inner short tube.

[0009] Furthermore, the first groove has a groove structure that is wider at the top and narrower at the bottom, and the bottom surface of the second groove is arc-shaped.

[0010] Furthermore, the cigarette-distributing rotary mechanism also includes a fixed cylinder, a rotating shaft, and a rotating shaft cover. The cigarette-distributing rotary cylinder cover is disposed on the fixed cylinder, the fixed cylinder cover is disposed on the rotating shaft cover, the rotating shaft passes through the rotating shaft cover, and the top end of the rotating shaft passes through the rotating shaft cover and is connected to a connecting plate at the top end of the rotating shaft. The connecting plate is connected to the end face of the cigarette-distributing rotary cylinder.

[0011] Furthermore, a bearing is provided in the shaft cover, and the shaft is connected through the bearing.

[0012] Furthermore, the upper part of the fixed cylinder is provided with an annular through hole, and the bottom of the rotating shaft cover is provided with an air extraction through hole. The rotating shaft cover and the inner wall of the fixed cylinder form an annular gap, which together with the annular through hole, the air extraction through hole and the negative pressure adsorption hole form a negative pressure airflow channel.

[0013] Furthermore, the male cavity seat is L-shaped, and the male cavity seat and the end seat are integral structures. The end seat is provided with an air pipe connector, which is connected to the groove and has an air pipe connected to it.

[0014] Furthermore, the female cavity seat is connected to the end seat by screws. The female cavity seat is provided with a horn groove, which is connected to the outer short tube. When the female cavity seat is connected to the end seat, the inner short tube extends into the horn groove and the end of the inner short tube does not contact the horn groove.

[0015] Compared with the prior art, the beneficial effects of this utility model are:

[0016] This invention provides a smoke-distributing rotating mechanism between the end of the first chute and the beginning of the second chute. The smoke-distributing rotating mechanism includes a smoke-distributing rotating cylinder with corrugated grooves and negative pressure adsorption holes. The rotation of the smoke-distributing rotating cylinder causes the filter rods in the first chute to be adsorbed in the corrugated grooves in an orderly manner and released on the second chute, thus enabling the filter rods to be transported in an orderly and intermittent manner. A filter rod transverse conveying mechanism is provided at the end of the second chute. Airflow is introduced into this mechanism. The airflow velocity increases and the pressure decreases at the end of the inner short tube, creating a negative pressure state at that point, which causes the filter rods to be sucked into the outer short tube. The outer short tube is connected to the detection port of the detection device, thereby enabling the filter rods to be transported one by one into the detection port. Attached Figure Description

[0017] Figure 1 is a schematic diagram of the structure of this utility model.

[0018] Figure 2 is a schematic diagram of the present invention from another direction.

[0019] Figure 3 is a schematic diagram of the disassembly of the smoke distribution wheel mechanism.

[0020] Figure 4 is a cross-sectional schematic diagram of the combined smoke distribution wheel mechanism.

[0021] Figure 5 is a schematic diagram of the disassembly of the filter rod horizontal feeding mechanism.

[0022] Figure 6 is a schematic cross-sectional view of the filter rod horizontal feeding mechanism assembly.

[0023] Figure 7 is a schematic diagram of the side structure of the mother cavity seat.

[0024] In the figure, 1-first chute, 2-smoke-distributing wheel mechanism, 21-fixed cylinder, 22-annular through hole, 23-rotating shaft, 24-bearing, 25-rotating shaft cover, 26-smoke-distributing cylinder, 27-corrugated groove, 28-connecting plate, 29-extraction through hole, 210-negative pressure adsorption hole, 211-negative pressure airflow channel, 3-second chute, 4-filter rod horizontal feeding mechanism, 41-male cavity seat, 42-end seat, 43-groove opening, 44-inner short tube, 45-female cavity seat, 46-outer short tube, 47-air pipe, 48-air pipe connector, 49-horn groove. Detailed Implementation

[0025] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. The components of the embodiments of this utility model described and shown in the accompanying drawings can typically be arranged and designed in various different configurations.

[0026] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without inventive effort are within the scope of protection of the present invention.

[0027] In the description of this utility model, it should also be noted that, unless otherwise explicitly specified and limited, the terms "set," "install," "connect," and "link" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0028] Please refer to Figures 1-2. This utility model provides a pneumatic conveying device for filter rod circumference detection, including a first chute 1, a smoke-distributing rotary mechanism 2, a second chute 3, and a filter rod transverse conveying mechanism 4. The smoke-distributing rotary mechanism 2 is connected between the end of the first chute 1 and the beginning of the second chute 3. In this embodiment, the smoke-distributing rotary mechanism 2 is used to transfer the filter rods in the first chute 1 one by one to the second chute 3. The filter rod transverse conveying mechanism 4 is provided at the end of the second chute 3. The filter rod transverse conveying mechanism 4 is connected to the detection port of the detection device and is used to send the filter rods falling in the second chute 3 one by one to the detection port.

[0029] Preferably, the first groove 1 has a groove structure that is wider at the top and narrower at the bottom, and the bottom surface of the second groove 3 is arc-shaped.

[0030] Referring to Figures 3-4, the cigarette-distributing rotary mechanism 2 includes a cigarette-distributing rotary cylinder 26. The cigarette-distributing rotary cylinder 26 is rotatably configured and has a corrugated groove 27 for accommodating the filter rod on its circumference. The groove surface of the corrugated groove 27 is semi-circular and matches the size of the filter rod. A negative pressure adsorption hole 210 is provided in the corrugated groove 27.

[0031] The negative pressure adsorption hole 210 adsorbs the filter rods one by one in the first slide 1 into the corrugated groove 27 through negative pressure, and causes the filter rods to fall one by one into the second slide 3. To achieve this process, the corrugated groove 27 needs to adsorb the filter rods through negative pressure when facing the first slide 1, and when the corrugated groove 27 faces the second slide 3, the negative pressure disappears, and the filter rods can no longer be adsorbed in the corrugated groove 27 and thus fall into the second slide 3 during the rotation of the smoke dispensing drum 26.

[0032] In addition, the cigarette-distributing rotating wheel mechanism 2 also includes a fixed cylinder 21, a rotating shaft 23, and a rotating shaft cover 25. Both the fixed cylinder 21 and the rotating shaft cover 25 are hollow cylindrical structures. The cigarette-distributing rotating cylinder 26 is covered on the fixed cylinder 21, and the fixed cylinder 21 is covered on the rotating shaft cover 25. The rotating shaft 23 passes through the rotating shaft cover 25, and the top end of the rotating shaft 23 passes through the rotating shaft cover 25 and is connected to a connecting plate 28. The connecting plate 28 is connected to the end face of the cigarette-distributing rotating cylinder 26, and the other end of the rotating shaft 23 is connected to a motor (not shown in the figure), so that the rotating shaft 23 drives the cigarette-distributing rotating cylinder 26 to rotate.

[0033] More specifically, a bearing 24 is provided in the shaft cover 25, and the shaft 23 is connected through the bearing 24 to provide flexibility for the rotation of the shaft 23.

[0034] The upper part of the fixed cylinder 21 is provided with an annular through hole 22. Preferably, the annular arc of the annular through hole 22 is 315°, and the remaining 45° closed surface is close to the first end of the second sliding groove 3. During the rotation of the smoke distribution cylinder 26, the negative pressure adsorption hole 210 passes through the annular through hole 22 to adsorb the filter rod. An air extraction through hole 29 is provided at the bottom of the rotating shaft cover 25. The air extraction through hole 29 is connected to the air pipe of the negative pressure pump to draw air through the air extraction through hole 29. The rotating shaft cover 25 and the inner wall of the fixed cylinder 21 form an annular gap. The annular gap, the annular through hole 22, the air extraction through hole 29 and the negative pressure adsorption hole 210 form a negative pressure airflow channel 211. Air is drawn out from the negative pressure airflow channel 211, so that the filter rod is adsorbed by negative pressure at the negative pressure adsorption hole 210. The airflow direction in the negative pressure airflow channel 211 is shown by the arrow in Figure 4.

[0035] Referring to Figures 5-6, the filter rod transverse feeding mechanism 4 includes a male cavity seat 41 and a female cavity seat 45. One end of the male cavity seat 41 is provided with an end seat 42. Preferably, the male cavity seat 41 is L-shaped, and the male cavity seat 41 and the end seat 42 are integral structures. The side of the end seat 42 is provided with a slot 43 for introducing a positive pressure air source. Further, the end seat 42 is provided with an air pipe connector 48, which is connected to the slot 43 and has an air pipe 47 connected to it. The slot 43 is provided with an inner short pipe 44 for the filter rod to pass through. The female cavity seat 45 is connected to the end seat 42, and an outer short pipe 46 is provided on the female cavity seat 45. The outer short pipe 46 is located directly in front of the inner short pipe 44, and the outer short pipe 46 and the inner short pipe 44 are concentrically arranged. The outer short pipe 46 is connected to the detection port of the detection device.

[0036] The mother cavity seat 45 is connected to the end seat 42 by screws. Referring to Figure 7, the mother cavity seat 45 is provided with a horn groove 49, which is connected to the outer short tube 46. When the mother cavity seat 45 is connected to the end seat 42, the inner short tube 44 extends into the horn groove 49 and the end of the inner short tube 44 does not contact the horn groove 49, so that there is a gap between the end of the inner short tube 44 and the groove surface of the horn groove 49, as shown by the arrow in Figure 6. When airflow is blown into the groove opening 43 through the air pipe 47, the airflow velocity increases when it reaches the gap, so that there is a local low pressure area in the gap, thereby generating suction or adsorption. Through this Venturi effect, the filter rod is adsorbed and discharged from the outer short tube 46.

[0037] Although the present invention has been described herein with reference to several illustrative embodiments, it should be understood that those skilled in the art can devise many other modifications and implementations that fall within the scope and spirit of the principles disclosed herein. More specifically, various modifications and improvements can be made to the components or layout of the subject matter arrangement within the scope of the disclosure, drawings, and claims. Besides modifications and improvements to the components or layout, other uses will be apparent to those skilled in the art.

Claims

1. A pneumatic conveying device for detecting the circumference of a filter rod, characterized in that, The system includes a first chute (1), a smoke-distributing rotary wheel mechanism (2), a second chute (3), and a filter rod conveying mechanism (4). The smoke-distributing rotary wheel mechanism (2) is connected between the end of the first chute (1) and the beginning of the second chute (3), and the filter rod conveying mechanism (4) is provided at the end of the second chute (3). The smoke-distributing rotary wheel mechanism (2) includes a smoke-distributing drum (26), which is rotatable and has a corrugated groove (27) for accommodating the filter rod on its circumference. A negative pressure adsorption hole (210) is provided in the corrugated groove (27). The negative pressure adsorption hole (210) is connected by negative pressure. The filter rods in the first chute (1) are adsorbed one by one into the corrugated chute (27) and fall one by one into the second chute (3); the filter rod transverse feeding mechanism (4) includes a male cavity seat (41) and a female cavity seat (45). One end of the male cavity seat (41) is provided with an end seat (42). The side of the end seat (42) is provided with a slot (43) for introducing a positive pressure air source. The slot (43) is provided with an inner short tube (44) for the filter rod to pass through. The female cavity seat (45) is connected to the end seat (42), and an outer short tube (46) is provided on the female cavity seat (45). The outer short tube (46) is located in front of the inner short tube (44).

2. The pneumatic conveying device for detecting the circumference of a filter rod according to claim 1, characterized in that: The first groove (1) is a groove structure that is wider at the top and narrower at the bottom, and the bottom surface of the second groove (3) is arc-shaped.

3. The pneumatic conveying device for filter rod circumference detection according to claim 1, characterized in that: The cigarette-distributing rotary mechanism (2) further includes a fixed cylinder (21), a rotating shaft (23), and a rotating shaft cover (25). The cigarette-distributing rotary cylinder (26) is covered on the fixed cylinder (21), and the fixed cylinder (21) is covered on the rotating shaft cover (25). The rotating shaft (23) passes through the rotating shaft cover (25), and the top end of the rotating shaft (23) passes through the rotating shaft cover (25) and a connecting plate (28) is connected to the top end of the rotating shaft (23). The connecting plate (28) is connected to the end face of the cigarette-distributing rotary cylinder (26).

4. The pneumatic conveying device for filter rod circumference detection according to claim 3, characterized in that: The rotating shaft cover (25) is provided with a bearing (24), and the rotating shaft (23) is connected to the bearing (24).

5. A pneumatic conveying device for detecting the circumference of a filter rod according to claim 3, characterized in that: The upper part of the fixed cylinder (21) is provided with an annular through hole (22), and the bottom of the rotating shaft cover (25) is provided with an exhaust through hole (29). The rotating shaft cover (25) and the inner wall of the fixed cylinder (21) form an annular gap. The annular gap, together with the annular through hole (22), the exhaust through hole (29) and the negative pressure adsorption hole (210), form a negative pressure airflow channel (211).

6. The pneumatic conveying device for detecting the circumference of a filter rod according to claim 1, characterized in that: The male cavity seat (41) is L-shaped, and the male cavity seat (41) and the end seat (42) are integral structures. The end seat (42) is provided with an air pipe connector (48), which is connected to the slot (43) and an air pipe (47) is connected to the air pipe connector (48).

7. A pneumatic conveying device for detecting the circumference of a filter rod according to claim 1, characterized in that: The mother cavity seat (45) is connected to the end seat (42) by screws. The mother cavity seat (45) is provided with a horn groove (49), which is connected to the outer short tube (46). When the mother cavity seat (45) is connected to the end seat (42), the inner short tube (44) extends into the horn groove (49) and the end of the inner short tube (44) does not contact the horn groove (49).

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