Assembled air suction mechanism

Abstract

The utility model belongs to the technical field of cigarette filter stick processing equipment, and discloses an assembled air suction mechanism which comprises an air suction seat, a mounting framework and a conveying disc, and a first positive pressure hole and a first negative pressure hole are formed in the air suction seat; the mounting framework is provided with a mounting cavity, a second positive pressure hole and a second negative pressure hole, and the air suction seat is suitable for being mounted in the mounting cavity; when the air suction base is installed in place, the first positive pressure hole corresponds to and communicates with the second positive pressure hole, the first negative pressure hole corresponds to and communicates with the second negative pressure hole, the second positive pressure hole is suitable for being connected with an external positive pressure connector, and the second negative pressure hole is suitable for being connected with an external negative pressure connector. The center of the conveying disc serves as the circle center, a plurality of conveying channels extending outwards in the radial direction of the conveying disc are evenly arranged on the conveying disc, a conveying cavity is formed in the top of each conveying channel, an air suction base can be rapidly disassembled and replaced, loose teeth and broken teeth are reduced, the overall durability is improved, and the production cost is reduced.

Description

TECHNICAL FIELD

[0001] The utility model relates to an assembled air suction mechanism and belongs to the technical field of filter rod processing equipment for cigarettes. BACKGROUND

[0002] In the field of filter rod processing equipment for cigarettes, generally, a suction force is generated by a vacuum pump through a bead adding device to adsorb beads and add them to filter rods through a feeding device. In the feeding device, an air suction mechanism is a key component including an air suction seat and a conveying disc, which is used to adsorb and convey the beads in the production process of filter rods. After searching, a filter rod bead adding feeding device disclosed in a Chinese patent with the publication number CN214386055U is found. In the patent, the starting device starts the rotation of the driving shaft, which drives the rotation of the feeding disc. The air suction port on the feeding disc is aligned with the negative pressure air suction port on the air suction seat to form a negative pressure environment. The negative pressure is transmitted to the bead containing cavity through the channel, and the beads are sucked and fixed at the corresponding position of the feeding disc. When the feeding disc continues to rotate, the air suction port is aligned with the blow-off port, and the beads are blown off through the blow-off port to complete the bead adding process. However, the feeding disc in the patent is in contact with the air suction seat, which will cause a certain degree of wear during use. When a certain degree is reached, the air suction seat needs to be disassembled and ground. The repeated disassembly and assembly will cause the screw holes on the air suction disc to slip and wear, and the air suction seat needs to be replaced at this time. SUMMARY

[0003] The technical problem to be solved by the utility model is to overcome the defects of the prior art and provide an assembled air suction mechanism, which can quickly disassemble and replace the air suction seat, reduce the slipping and wearing of the screw holes, improve the overall durability, and reduce the production cost.

[0004] To solve the above technical problems, the technical scheme of the utility model is as follows:

[0005] An assembled air suction mechanism includes:

[0006] An air suction seat is provided with a first positive pressure hole and at least one first negative pressure hole;

[0007] An installation framework is provided with an installation cavity, a second positive pressure hole, and a second negative pressure hole. The air suction seat is adapted to be installed in the installation cavity;

[0008] When the air suction seat is installed in place, the first positive pressure hole corresponds to and communicates with the second positive pressure hole, and the first negative pressure hole corresponds to and communicates with the second negative pressure hole. The second positive pressure hole is adapted to be connected with an external positive pressure connector, and the second negative pressure hole is adapted to be connected with an external negative pressure connector;

[0009] A conveying disc is provided with a plurality of conveying channels extending radially outwardly from the center of the conveying disc, and the top of each conveying channel is provided with a conveying cavity, wherein the material is adsorbed in the conveying cavity, and the conveying disc is driven to rotate by an external driving device to drive the material from a starting position to a predetermined position.

[0010] Further, in order to realize continuous conveying of the material, a plurality of transmission ports are uniformly arranged on the conveying disc with the center of the conveying disc as the center, and the transmission ports are communicated with the conveying channels; the transmission ports are adapted to be communicated with the first negative pressure hole during the rotation of the conveying disc and adapted to be communicated with the first positive pressure hole when the conveying disc rotates to the predetermined position.

[0011] Further, in order to ensure the stability of the connection between the air suction seat and the mounting framework, a first thread is arranged in the mounting cavity, a second thread is arranged on the air suction seat and matched with the first thread, and the air suction seat is adapted to be mounted in the mounting cavity by matching the first thread with the second thread.

[0012] Further, in order to prevent the mounting framework from being worn, the mounting framework is made of aluminum material.

[0013] Further, the material of the air suction seat is polyvinyl fluoride.

[0014] Further, in order to improve the stability of the transmission, at least one arc-shaped air suction groove is arranged on the contact surface between the air suction and the conveying disc, the arc-shaped air suction groove is communicated with at least one first negative pressure hole, and the transmission port is adapted to be communicated with the first negative pressure hole through the arc-shaped air suction groove during the rotation of the conveying disc.

[0015] After the above technical scheme is adopted, the utility model has the following beneficial effects:

[0016] In the utility model, the air suction seat is connected with the first thread on the mounting framework through the second thread, so that the air suction seat is stably mounted in the mounting cavity, and the conveying disc is abutted with the air suction seat by the external driving device; when the external driving device is not started and the conveying disc is static, the external negative pressure connector sucks the second negative pressure hole, the first negative pressure hole and the arc-shaped air suction groove through the external air pump, at this time, the transmission port corresponding to the material is communicated with the arc-shaped air suction groove, so that a negative pressure area is formed in the conveying cavity, and the material can be tightly adsorbed in the conveying cavity; the external driving device is started, the conveying disc rotates, the material is driven to move from the starting position to the predetermined discharging position, at this time, the transmission port corresponding to the material is communicated with the first positive pressure hole, and the external positive pressure connector blows the second positive pressure hole and the first positive pressure hole through the external air pump, so that the material is separated from the conveying cavity, and the discharging is completed. BRIEF DESCRIPTION OF DRAWINGS

[0017] Figure 1 an assembly diagram of an assembled air suction mechanism;

[0018] Figure 2 a structural diagram of a mounting framework;

[0019] Figure 3 a structural diagram of an air suction seat Figure 1 ;

[0020] Figure 4 a structural diagram of an air suction seat Figure 2 ;

[0021] Figure 5 a structural diagram of a conveying disc. DETAILED DESCRIPTION

[0022] In order to make the content of the utility model more easily and clearly understood, the utility model is further described in detail below according to specific embodiments and in conjunction with the drawings.

[0023] As Figures 1-5 shown, an assembled air suction mechanism comprises:

[0024] an air suction seat 1, the air suction seat 1 is provided with a first positive pressure hole 11 and two first negative pressure holes 12;

[0025] a mounting framework 2, the mounting framework 2 is provided with a mounting cavity 21, a second positive pressure hole 22 and a second negative pressure hole 23, and the air suction seat 1 is adapted to be mounted in the mounting cavity 21;

[0026] When the air suction seat 1 is mounted in place, the first positive pressure hole 11 corresponds to and communicates with the second positive pressure hole 22, and the first negative pressure hole 12 corresponds to and communicates with the second negative pressure hole 23, the second positive pressure hole 22 is adapted to be connected with an external positive pressure connector, and the second negative pressure hole 23 is adapted to be connected with an external negative pressure connector;

[0027] a conveying disc 3, twelve conveying channels 31 extending outward along the radial direction of the conveying disc 3 are uniformly provided on the conveying disc 3 with the center of the conveying disc 3 as the center, the conveying channel 31 is provided with a conveying cavity 32 at the top, the material is adapted to be adsorbed in the conveying cavity 32, and the conveying disc 3 is adapted to be driven to rotate by an external driving device to drive the material from a starting position to a predetermined position.

[0028] In the embodiment, the starting position is the position where the external device conveys the material into the conveying cavity 32, and the predetermined position is the discharging position of the material, and the external driving device drives the conveying disc 3 to rotate clockwise to transfer the falling material to the discharging position.

[0029] Specifically, as Figure 5 shown, twelve transmission ports 33 are uniformly provided on the conveying disc 3 with the center of the conveying disc 3 as the center, and the transmission port 33 communicates with the conveying channel 31;

[0030] The transmission port 33 is adapted to be connected to the first negative pressure hole 12 during the rotation of the conveyor plate 3 and to be connected to the first positive pressure hole 11 when the conveyor plate 3 rotates to a predetermined position.

[0031] Specifically, such as Figures 1-3 As shown, the mounting cavity 21 is provided with a first thread 211, and the suction seat 1 is provided with a second thread 13 that mates with the first thread 211. The suction seat 1 is adapted to be installed in the mounting cavity 21 through the mating of the first thread 211 and the second thread 13.

[0032] In this embodiment, the first thread 211 is an internal thread, and the second thread 13 is an external thread.

[0033] Specifically, the mounting frame 2 is made of aluminum, which is not easily worn, ensuring the connection stability between the external positive pressure connector and the second positive pressure hole 22, and between the external negative pressure connector and the second negative pressure hole 23.

[0034] Specifically, the suction base 1 is made of polyvinyl fluoride, which is a soft material that is not easy to slip and has a self-lubricating effect.

[0035] During the material conveying process, the conveyor disc 3 rotates continuously and comes into contact with the suction seat 1, causing the suction seat 1 to wear. The suction seat 1 can be repaired by grinding to ensure the stability of the material conveying process. After multiple repairs, when the suction seat 1 reaches its limit and can no longer make tight contact with the conveyor disc 3, a new suction seat 1 can be replaced, while the mounting frame 2 does not need to be replaced. This method can save production costs.

[0036] Specifically, such as Figures 1-4 As shown, at least one arc-shaped suction groove 14 is provided on the contact surface between the suction seat 1 and the conveying plate 3. The arc-shaped suction groove 14 is connected to the first negative pressure hole 12. The transmission port 33 is adapted to be connected to the first negative pressure hole 12 through the arc-shaped suction groove 14 during the rotation of the conveying plate 3.

[0037] In this embodiment, the suction seat 1 is connected to the first thread 211 on the mounting frame 2 via the second thread 13, so that the suction seat 1 is stably installed in the mounting cavity 21. The conveying plate 3 is abutted against the suction seat 1 by an external driving device. When the external driving device is not started and the conveying plate 3 is stationary, the external negative pressure connector sucks the second negative pressure hole 23, the first negative pressure hole 12 and the arc-shaped suction groove 14 through an external air pump. At this time, the material's corresponding transmission port 33 is connected to the arc-shaped suction groove 14, thereby forming a negative pressure zone in the conveying cavity 32, so that the material can be tightly adsorbed in the conveying cavity 32.

[0038] The external driving device is started to rotate the conveying disc 3, and the material is moved from the starting position to the predetermined discharging position, at this time, the conveying port 33 corresponding to the material is communicated with the first positive pressure hole 11, and the external positive pressure connector blows air to the second positive pressure hole 22 and the first positive pressure hole 11 through the external air pump, so that the material is separated from the conveying cavity 32, and the discharging release is completed.

[0039] The above-described specific embodiments further specifically describe the technical problems, technical solutions and beneficial effects solved by the utility model, and it should be understood that the above-described specific embodiments are merely specific embodiments of the utility model and are not used to limit the utility model, and any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model should be included in the protection scope of the utility model.

Claims

1. An assembled air suction mechanism, characterized by, The application relates to a material conveying device, which comprises the following parts: an air suction base (1) provided with a first positive pressure hole (11) and at least one first negative pressure hole (12); a mounting framework (2) provided with a mounting cavity (21), a second positive pressure hole (22) and a second negative pressure hole (23), wherein the air suction base (1) is adapted to be mounted in the mounting cavity (21); when the air suction base (1) is mounted in place, the first positive pressure hole (11) is in correspondence with and communication with the second positive pressure hole (22), the first negative pressure hole (12) is in correspondence with and communication with the second negative pressure hole (23), the second positive pressure hole (22) is adapted to be connected with an external positive pressure connector, and the second negative pressure hole (23) is adapted to be connected with an external negative pressure connector; a conveying disc (3) provided with a plurality of conveying channels (31) extending outward along the radial direction of the conveying disc (3) and uniformly distributed on the conveying disc (3) with the center of the conveying disc (3) as the center, wherein the top of each conveying channel (31) is provided with a conveying cavity (32) adapted to adsorb materials, and the conveying disc (3) is adapted to be driven to rotate by an external driving device so as to drive the materials from a starting position to a predetermined position.

2. The assembly of claim 1, wherein: a plurality of transmission ports (33) are uniformly distributed on the conveying disc (3) with the center of the conveying disc (3) as the center, wherein the transmission ports (33) are in communication with the conveying channels (31), and the transmission ports (33) are adapted to be in communication with the first negative pressure hole (12) during the rotation of the conveying disc (3) and adapted to be in communication with the first positive pressure hole (11) when the conveying disc (3) rotates to the predetermined position.

3. The assembled air suction mechanism according to claim 1, wherein: a first thread (211) is arranged in the mounting cavity (21), and a second thread (13) matched with the first thread (211) is arranged on the air suction base (1), so that the air suction base (1) is adapted to be mounted in the mounting cavity (21) through the cooperation of the first thread (211) and the second thread (13).

4. The assembly according to claim 1, wherein: The mounting framework (2) is made of aluminum material.

5. The modular air suction mechanism of claim 1, wherein: The material of the air suction base (1) is polyvinyl fluoride.

6. The modular air suction device of claim 2, wherein: At least one arc-shaped air suction groove (14) is arranged on the contact surface between the air suction base (1) and the conveying disc (3), the arc-shaped air suction groove (14) is in communication with at least one first negative pressure hole (12), and the transmission port (33) is adapted to be in communication with the first negative pressure hole (12) through the arc-shaped air suction groove (14) during the rotation of the conveying disc (3).

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