CN214515686U

CN214515686U - Cigarette glue water valve with improved structure

Info

Publication number: CN214515686U
Application number: CN202120548486.8U
Authority: CN
Inventors: 俞辉勇; 黄先愿; 张伟玉
Original assignee: Zhejiang Yongze Composite Material Co ltd
Current assignee: Zhejiang Yongze Composite Material Co ltd
Priority date: 2021-03-17
Filing date: 2021-03-17
Publication date: 2021-10-29
Anticipated expiration: 2031-03-17

Abstract

The utility model discloses a cigarette glue water valve with improved structure, which comprises a glue inlet pipe, a valve cavity, a base, a piston assembly, a fine adjustment unit, an upper permanent magnet, a lower permanent magnet, a conductive coil and a direct current pulse power supply, wherein the base is provided with a glue guide inner wall, the fine adjustment unit comprises a movable block and a lead screw assembly, and the upper permanent magnet is fixed on the movable block; the piston assembly comprises a piston rod, a connecting rod and a sealing head, the sealing head can be in sealing fit with the inner wall of the rubber guide when moving downwards, and the lower permanent magnet is fixed on the piston rod; the polarities of the opposite surfaces of the upper permanent magnet and the lower permanent magnet are the same; the conductive coil surrounds the valve cavity corresponding to the piston rod, and the direct-current pulse power supply is electrically connected with the conductive coil. The utility model discloses utilize upper and lower permanent magnet as restoring force when reseing, not only more stable and reliable, moreover, utilize the fixed height that fine setting unit changed the upper permanent magnet, can adjust the stroke of piston rod, the pulse change of deuterogamying direct current pulse power supply can be effectively to going out the volume of gluing accurately regulate and control.

Description

Cigarette glue water valve with improved structure

Technical Field

The utility model relates to a processing equipment of cigarette glue especially indicates a glue valve suitable for cigarette is glued.

Background

During the production of cigarettes, small portions of the cigarette glue are transferred to the folded sheet of the (cigarette) pack or to the cigarette paper. Glue nozzles or glue valves are suitable for dispensing small amounts of glue at very high circulation speeds.

In known glue valves, movement to the open position is often achieved by an electromagnet moving in a valve housing; and is moved to the closed position by a return spring. In the process of long-term use, the problems of fatigue and elasticity reduction of the spring are inevitably caused, so that the normal use of the glue valve is influenced.

In addition, the glue outlet quantity of the existing glue valve is relatively troublesome to adjust, and some glue valves even cannot be adjusted.

SUMMERY OF THE UTILITY MODEL

The utility model provides a glue valve suitable for cigarette is glued, the glue valve that its aim at overcome the spring elasticity that prior art exists and reduce and lead to uses the problem that receives the influence and go out the volume of gluing and can't adjust.

In order to achieve the purpose, the utility model provides a technical scheme as follows:

a cigarette glue valve with improved structure comprises: the glue inlet pipe, the valve cavity, the base, the piston assembly, the fine adjustment unit, the upper permanent magnet, the lower permanent magnet, the conductive coil and the direct-current pulse power supply are arranged in the valve cavity, and a glue outlet of the glue inlet pipe is communicated with the valve cavity; the base is positioned at the bottom of the valve cavity, the bottom of the base is provided with a glue outlet, the base is provided with a conical glue guiding inner wall, and the small-diameter end of the glue guiding inner wall is connected with the glue outlet; the fine adjustment unit comprises a movable block arranged at the upper part of the valve cavity and a screw rod assembly driving the movable block to move up and down, and the upper permanent magnet is embedded in and fixed on the bottom surface of the movable block; the piston assembly is arranged at the lower part of the valve cavity in a manner of moving up and down and comprises a piston rod made of an electromagnet, a connecting rod with a small diameter and a sealing head, wherein the upper end and the lower end of the connecting rod are respectively connected with the piston rod and the sealing head, the sealing head can be in sealing fit with the inner wall of the rubber guide when moving down, and the lower permanent magnet is embedded in and fixed on the upper surface of the piston rod; the upper permanent magnet is opposite to the lower permanent magnet, and the polarities of the opposite surfaces of the upper permanent magnet and the lower permanent magnet are the same; the conductive coil surrounds the valve cavity corresponding to the upper half part of the piston rod, and the direct-current pulse power supply is electrically connected with the conductive coil.

In a recommended embodiment, the screw rod assembly comprises a nut fixing block and a screw rod, the nut fixing block is fixedly arranged at the top of the valve cavity, and an internal thread is formed in the middle of the nut fixing block; the screw rod is in threaded fit with the nut fixing block, and the lower end of the screw rod is fixedly connected to the movable block.

In a recommended embodiment, the screw rod assembly comprises a threaded rod, a limit gear, a left axial positioning rod, a right axial positioning rod, a driving gear and a motor, the lower end of the threaded rod is fixed on the movable block, and the upper end of the threaded rod forms a free end; the left and right axial positioning rods are respectively positioned at the left and right sides of the threaded rod, clamping grooves with the same height are respectively arranged at one sides of the left and right axial positioning rods close to the threaded rod, an internal thread is arranged in a central hole of the limiting gear, and the limiting gear is in threaded connection with the threaded rod and is horizontally clamped between the two clamping grooves; the motor is connected with the driving gear, and the driving gear is meshed with the limiting gear.

In a preferred embodiment, the sealing head is spherical.

Adopt the technical scheme provided by the utility model, compare with prior art, have following beneficial effect: when the power is on, the sealing head moves upwards for a small distance, and the glue valve is opened; when the power supply is turned off, the sealing head moves downwards for a small distance and the glue valve is closed. The utility model discloses utilize upper and lower permanent magnet as restoring force when reseing, not only safe but also stable, reliable.

Additionally, the utility model discloses a fine setting unit is through the fixed height who changes the upper permanent magnet, adjusts the stroke height of piston rod. When the glue outlet device is used, the fine adjustment unit is matched with the pulse change of the direct-current pulse power supply, so that the glue outlet amount can be effectively and accurately regulated and controlled.

Drawings

Fig. 1 is a schematic cross-sectional structure diagram of the first embodiment.

Fig. 2 is a schematic cross-sectional structure diagram of the second embodiment.

Detailed Description

For further understanding of the present invention, the present invention will be described in detail with reference to the following examples, which are provided for illustration of the present invention but are not intended to limit the scope of the present invention.

Example one

Referring to fig. 1, a glue valve for cigarette glue comprising: the device comprises a rubber inlet pipe 1, a valve cavity 2, a base 3, a piston assembly 4, an upper permanent magnet 5, a lower permanent magnet 6, a conductive coil 7, a fine adjustment unit and a direct current pulse power supply (not shown in the figure).

The glue inlet pipe 1 is connected to the left side of the valve cavity 2, and a glue outlet of the glue inlet pipe 1 is communicated with the valve cavity 2. The base 3 is located the bottom of valve chamber 2, and the bottom of base 3 is equipped with out jiao kou 31, and base 3 has conical leading gluey inner wall 30, and the minor diameter end that should lead gluey inner wall 30 is connected in out jiao kou 31.

The piston assembly 4 is mounted at the lower part of the valve cavity 2 in a way of moving up and down, and comprises a piston rod 41 made of electromagnet, a connecting rod 42 with a small diameter and a sealing head 43, wherein the upper end and the lower end of the connecting rod 42 are respectively connected with the piston rod 41 and the sealing head 43, and the sealing head 43 can be in sealing fit with the glue guiding inner wall 30 when moving down along with the piston rod 41 and the connecting rod 42. In order to better match the glue guiding inner wall 30, the present embodiment uses a spherical sealing head 43 to achieve quick opening or quick closing of the glue valve.

With continued reference to fig. 1, the lower permanent magnet 6 is embedded and fixed to the upper surface of the piston rod 41 and is flush with the upper surface of the piston rod 41. The fine adjustment unit comprises a movable block 80 arranged at the upper part of the valve cavity 2 and a screw rod assembly driving the movable block 80 to move up and down, and the upper permanent magnet 5 is embedded in and fixed on the bottom surface of the movable block 80 and is parallel and level to the bottom surface of the movable block 80. In this embodiment, the screw rod assembly includes a nut fixing block 81 and a screw rod 82, the nut fixing block 81 is fixedly installed at the top of the valve cavity 2, and an internal thread (not shown) is formed in the middle of the nut fixing block 81; the screw rod 82 is in threaded fit with the nut fixing block 81, and the lower end of the screw rod 82 is fixedly connected to the movable block 80. When the glue discharging device is used, the screw rod 82 can be rotated to enable the upper permanent magnet 5 to move up and down, so that the stroke of the piston rod 41 is adjusted, and the glue discharging amount is adjusted.

As shown in fig. 1, the upper permanent magnet 5 faces the lower permanent magnet 6, and the polarities of the facing surfaces of the upper permanent magnet 5 and the lower permanent magnet 6 are the same, and as shown in the figure, the N pole of the upper permanent magnet 5 faces the N pole of the lower permanent magnet 6. The conductive coil 7 surrounds the valve cavity 2 corresponding to the upper half part of the piston rod 41, and the direct current pulse power supply is electrically connected with the conductive coil 7.

When the power is not on, due to the mutual repulsion between the upper permanent magnet 5 and the lower permanent magnet 6, a gap of approximately 0.3 mm-0.8 mm is always kept between the upper end of the piston rod 41 and the top cavity wall of the valve cavity 2, at the moment, the sealing head 43 is in sealing fit with the glue guiding inner wall 30, and the glue valve is closed. After the conductive coil 7 is electrified, the piston assembly 4 moves upwards by a small distance (the distance is determined by the strength of an electric field) integrally under the action of electromagnetic force, at the moment, the sealing head 43 is separated from the glue guiding inner wall 30, and the glue valve is opened.

Example two

The second embodiment has a structure substantially the same as that of the first embodiment, and the main difference is that the screw rod assembly of the second embodiment includes a threaded rod 91, a limit gear 92, a left axial positioning rod 93, a right axial positioning rod 94, a driving gear (not shown in the figure due to a view angle), and a motor (not shown in the figure due to a view angle), the lower end of the threaded rod 91 is fixed to the movable block 80, and the upper end forms a free end. The left axial positioning rod 93 and the right axial positioning rod 94 are respectively located on the left side and the right side of the threaded rod 91, the left axial positioning rod 93 and the right axial positioning rod 94 are respectively provided with clamping grooves (not marked in the figure) with the same height on one side close to the threaded rod 91, the central hole of the limit gear 92 is provided with internal threads, the limit gear 92 is in threaded connection with the threaded rod 91, and the horizontal clamping is arranged between the two clamping grooves. The motor is connected to a drive gear which is engaged with a limit gear 92.

During operation, motor and driving gear drive limit gear 92 and rotate, and limit gear 92 moves along with upper and lower motion at the action threaded rod 91 and with threaded rod 91 fixed connection's movable block 80 (including last permanent magnet 5) to this stroke of adjusting piston rod 41, and then the adjustment goes out gluey volume.

The present invention has been described in detail with reference to the embodiments, but the description is only for the preferred embodiments of the present invention and should not be construed as limiting the scope of the present invention. All the equivalent changes and improvements made according to the application scope of the present invention should still fall within the patent coverage of the present invention.

Claims

1. The utility model provides a cigarette glue valve of institutional advancement which characterized in that, it includes: the glue inlet pipe, the valve cavity, the base, the piston assembly, the fine adjustment unit, the upper permanent magnet, the lower permanent magnet, the conductive coil and the direct-current pulse power supply are arranged in the valve cavity, and a glue outlet of the glue inlet pipe is communicated with the valve cavity; the base is positioned at the bottom of the valve cavity, the bottom of the base is provided with a glue outlet, the base is provided with a conical glue guiding inner wall, and the small-diameter end of the glue guiding inner wall is connected with the glue outlet; the fine adjustment unit comprises a movable block arranged at the upper part of the valve cavity and a screw rod assembly driving the movable block to move up and down, and the upper permanent magnet is embedded in and fixed on the bottom surface of the movable block; the piston assembly is arranged at the lower part of the valve cavity in a manner of moving up and down and comprises a piston rod made of an electromagnet, a connecting rod with a small diameter and a sealing head, wherein the upper end and the lower end of the connecting rod are respectively connected with the piston rod and the sealing head, the sealing head can be in sealing fit with the inner wall of the rubber guide when moving down, and the lower permanent magnet is embedded in and fixed on the upper surface of the piston rod; the upper permanent magnet is opposite to the lower permanent magnet, and the polarities of the opposite surfaces of the upper permanent magnet and the lower permanent magnet are the same; the conductive coil surrounds the valve cavity corresponding to the upper half part of the piston rod, and the direct-current pulse power supply is electrically connected with the conductive coil.

2. The cigarette glue valve of claim 1, wherein: the screw rod assembly comprises a nut fixing block and a screw rod, the nut fixing block is fixedly arranged at the top of the valve cavity, and an internal thread is formed in the middle of the nut fixing block; the screw rod is in threaded fit with the nut fixing block, and the lower end of the screw rod is fixedly connected to the movable block.

3. The cigarette glue valve of claim 1, wherein: the screw rod assembly comprises a threaded rod, a limiting gear, a left axial positioning rod, a right axial positioning rod, a driving gear and a motor, the lower end of the threaded rod is fixed on the movable block, and the upper end of the threaded rod forms a free end; the left and right axial positioning rods are respectively positioned at the left and right sides of the threaded rod, clamping grooves with the same height are respectively arranged at one sides of the left and right axial positioning rods close to the threaded rod, an internal thread is arranged in a central hole of the limiting gear, and the limiting gear is in threaded connection with the threaded rod and is horizontally clamped between the two clamping grooves; the motor is connected with the driving gear, and the driving gear is meshed with the limiting gear.

4. The cigarette glue valve of claim 1, wherein: the sealing head is spherical.