Glue pushing device capable of detecting liquid level

Abstract

The utility model relates to the technical field of glue pushing devices for glue dispensers, and discloses a glue pushing device capable of detecting a liquid level, which comprises a pressing piston, a connecting block is mounted below the pressing piston in a penetrating manner, a sealing gasket is fixedly mounted below the connecting block, a magnetic ring is mounted above the connecting block in a penetrating manner, and the sealing gasket is fixedly mounted below the magnetic ring. A fixing bolt is installed on the front side of the connecting block in a penetrating mode, an adapting pipe is installed on the outer side of a sealing gasket in an embedded mode, a limiting frame is fixedly installed on the front side of the adapting pipe, and when the sealing gasket is located in the adapting pipe, the sealing gasket can be pressed to deform, so that a gap between the connecting block and the adapting pipe is filled; in the process that the piston is pressed downwards to drive the connecting block and the sealing gasket to move upwards, the pressure in a pipe cavity of the adapting pipe can be reduced, the colloid can be pressed into the one-way valve from the feeding pipe through external air pressure and enters the adapting pipe through the connecting pipe, and in this way, the colloid can be prevented from overflowing from the colloid outlet in the process of adding the colloid again.

Description

Technical Field

[0001] The utility model relates to the technical field of glue pushing devices for dispensing machines, in particular to a glue pushing device with liquid level detection. Background Technique

[0002] The glue pushing device is installed on the dispensing machine and is used to extrude the glue in the glue bucket. It has the advantages of fast dispensing, stable pressure, and uniform dispensing speed. Therefore, most dispensing machines are equipped with a glue pushing device for dispensing.

[0003] For the existing Chinese utility model patent with the reference publication number: CN219309217U, it discloses a glue pushing device, which relates to the field of glue pushing devices for dispensing machines. The key points of its technical solution are: including a mounting base plate, a mounting bracket fixed on the mounting base plate, a glue bucket fixing seat, a glue bucket cover plate detachably connected to the top of the glue bucket fixing seat, and a glue pushing cylinder fixed on the mounting bracket. The piston rod of the glue pushing cylinder passes through the mounting bracket and extends into the glue bucket fixing seat. A push head is arranged at the end of the piston rod. A rotary check valve is also arranged on the mounting base plate. The utility model solves the problem that a large amount of glue flows into the glue channel between the glue bucket and the dispensing machine, causing adhesion and blockage, and is beneficial to improving the dispensing accuracy of the dispensing machine.

[0004] After the existing glue pushing device completely pushes out the colloid in the inner cavity, it is necessary to use a liquid pump to transport the colloid into the lumen. Since there is a glue outlet at the bottom of the glue pushing device, the colloid in the lumen may overflow from the glue outlet under pressure during the process of re-adding the colloid. At the same time, the existing glue pushing device cannot observe the colloid content in the lumen during use. Content of the Utility Model

[0005] (1) Technical Problems to be Solved

[0006] Aiming at the deficiencies of the prior art, the utility model provides a glue pushing device with liquid level detection, which has the advantages of avoiding the overflow of colloid when filling the colloid and facilitating the detection of liquid level changes, and solves the above technical problems.

[0007] (2) Technical Solutions

[0008] To achieve the above object, the present utility model provides the following technical solutions: A glue pushing device capable of liquid level detection, comprising: a pressing piston, a connecting block is inserted and installed below the pressing piston, a sealing gasket is fixedly installed below the connecting block, a magnetic ring is inserted and installed above the connecting block, a fixing bolt is inserted and installed on the front side of the connecting block, a receiving pipe is fitted and installed on the outer side of the sealing gasket, a limiting frame is fixedly installed on the front side of the receiving pipe, a slider is movably installed inside the limiting frame, a movable roller is fitted and installed on the front side of the slider, a limiting plate is fixedly installed on the front side of the slider, a magnet is fixedly installed at the center of the limiting plate, an end plate is fixedly installed at the top end of the receiving pipe, a connecting pipe is fixedly installed on the left side of the receiving pipe, a one-way valve is fixedly installed on the left side of the connecting pipe, a feeding pipe is fixedly installed on the left side of the one-way valve, an electromagnetic valve is fixedly installed below the receiving pipe, and a glue outlet is fixedly installed below the electromagnetic valve; the pressing piston can drive the connecting block to move.

[0009] As a preferred technical solution of the present utility model, the connecting block is of a cylindrical structure, an opening structure for fitting with the movable end of the pressing piston is provided at the upper end of the connecting block, and annular protrusions are vertically and equidistantly arranged on the outer side of the sealing gasket; the connecting block can facilitate the connection between the sealing gasket and the pressing piston.

[0010] As a preferred technical solution of the present utility model, the installation position of the magnetic ring is above the sealing gasket, and the fixing bolt passes through the connecting block and is fixed with the pressing piston through a nut; the fixing bolt can facilitate the connection between the connecting block and the pressing piston.

[0011] As a preferred technical solution of the present utility model, the inner diameter of the receiving pipe is smaller than the diameter of the sealing gasket, the limiting frame and the front vertical surface of the receiving pipe enclose a rectangular pipe structure, and the slider is installed between the limiting frame and the receiving pipe; the receiving pipe can facilitate the receiving of the colloid.

[0012] As a preferred technical solution of the present utility model, the movable rollers are symmetrically installed above and below, left and right on the front side of the slider, and the rear side of the movable roller is behind the rear vertical surface of the slider and contacts the front vertical surface of the receiving pipe, and a concave structure for fitting with the movable roller is provided on the rear vertical surface of the limiting plate; the movable roller can facilitate the movement of the slider.

[0013] As a preferred technical solution of the present utility model, the limiting plate is fixed to the front side of the slider by screws, the magnet passes through the limiting plate and the slider, and the rear end of the magnet does not contact the receiving pipe; the magnet can facilitate the magnetic ring to drive the slider to move.

[0014] As a preferred technical solution of the present utility model, the connecting pipe is installed at the lower left end of the receiving pipe, and the connecting pipe penetrates through the left vertical surface of the receiving pipe and communicates with the inner cavity of the receiving pipe. The glue outlet is of a conical structure; the connecting pipe can facilitate the connection between the one-way valve and the receiving pipe.

[0015] Compared with the prior art, the present utility model provides a glue pushing device capable of liquid level detection, and has the following beneficial effects:

[0016] 1. Through the setting of the solenoid valve in the present utility model, the solenoid valve is fixedly installed between the receiving pipe and the glue outlet. When the solenoid valve is closed, the receiving pipe will not be able to communicate with the glue outlet, and the bottom end of the receiving pipe is in a closed state. At the same time, the inner diameter of the receiving pipe is smaller than the diameter of the sealing gasket. When the sealing gasket is located inside the receiving pipe, the sealing gasket will be deformed under pressure, so as to fill the gap between the connecting block and the receiving pipe. During the process of the downward pressing piston driving the connecting block and the sealing gasket to move upward, the pressure inside the lumen of the receiving pipe will be reduced, and the external air pressure will press the colloid from the feeding pipe into the one-way valve and enter the inside of the receiving pipe through the connecting pipe. This way can avoid the colloid overflowing from the glue outlet during the process of re-adding the colloid.

[0017] 2. Through the setting of the magnetic ring in the present utility model, when the downward pressing piston is at the elongation limit, the connecting block will be located above the connecting pipe at the bottom of the receiving pipe, and the bottom end of the slider will be flush with the bottom end of the receiving pipe. When the downward pressing piston drives the connecting block and the sealing gasket to move upward to pump the colloid into the inside of the receiving pipe, the magnetic ring will drive the slider to move upward through the magnet, and the bottom end of the slider will be flush with the liquid level. Since the rear side of the movable roller is located behind the rear vertical surface of the slider and contacts the front vertical surface of the receiving pipe, the magnet penetrates through the limiting plate and the slider, and the movable roller is used to reduce the friction force when the slider slides. This way can facilitate the intuitive display of the position of the liquid level inside the lumen, so as to detect the liquid level of the lumen. Description of the Drawings

[0018] Figure 1 is a schematic diagram of the overall structure of the present utility model;

[0019] Figure 2 is a schematic diagram of the structure for installing the sealing gasket of the present utility model;

[0020] Figure 3 is a schematic diagram of the installation structure of the movable roller of the present utility model;

[0021] Figure 4 is a schematic cross-sectional view of the receiving pipe of the present utility model;

[0022] Among them: 1. Pressing piston; 11. Connecting block; 12. Sealing gasket; 13. Magnetic ring; 14. Fixing bolt; 2. Socket; 21. Limiting frame; 22. Sliding block; 23. Movable roller; 24. Limiting plate; 25. Magnet; 26. End plate; 27. Connecting pipe; 28. One-way valve; 29. ​​Feeding pipe; 210. Solenoid valve; 211. Glue outlet. DETAILED DESCRIPTION

[0023] The following is a further detailed description of the implementation of the present invention in conjunction with the accompanying drawings and examples. The following examples are used to illustrate the present invention, but cannot be used to limit the scope of the present invention.

[0024] In the description of the present invention, unless otherwise specified, "multiple" means two or more; the terms "upper", "lower", "left", "right", "inner", "outer", "front end", "rear end", "head", "tail" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, which is only for the convenience of describing the present invention and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operate in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", "third" and the like are only used for descriptive purposes and cannot be understood as indicating or implying relative importance.

[0025] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "connected" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0026] See also Figure 1 - Figure 4 In this embodiment, a rubber pushing device capable of liquid level detection includes: a pressing piston 1, a connecting block 11 is inserted and installed below the pressing piston 1, a sealing gasket 12 is fixedly installed below the connecting block 11, a magnetic ring 13 is inserted and installed above the connecting block 11, and a fixing bolt 14 is inserted and installed on the front side of the connecting block 11.

[0027] The connecting block 11 is a cylindrical structure, and the upper end of the connecting block 11 is provided with an open hole structure that is engaged with the movable end of the downward piston 1. The outer side of the sealing gasket 12 is vertically equidistantly provided with annular protrusions. The installation position of the magnetic ring 13 is located above the sealing gasket 12, and the fixing bolt 14 passes through the connecting block 11 and is fixed to the position of the downward piston 1 by a nut.

[0028] Specifically, the pressing piston 1 can drive the connecting block 11 to move. The connecting block 11 facilitates the connection between the gasket 12 and the pressing piston 1. The gasket 12 can prevent the colloid from overflowing upward. The magnetic ring 13 can facilitate the movement of the slider 22. The fixing bolt 14 can facilitate the connection between the connecting block 11 and the pressing piston 1.

[0029] A receiving pipe 2 is fitted and installed on the outer side of the gasket 12. A limiting frame 21 is fixedly installed on the front side of the receiving pipe 2. A slider 22 is movably installed inside the limiting frame 21. A movable roller 23 is fitted and installed on the front side of the slider 22. A limiting plate 24 is fixedly installed on the front side of the slider 22. A magnet 25 is fixedly installed at the center of the limiting plate 24. An end plate 26 is fixedly installed at the top of the receiving pipe 2. A connecting pipe 27 is fixedly installed on the left side of the receiving pipe 2. A one-way valve 28 is fixedly installed on the left side of the connecting pipe 27. A feeding pipe 29 is fixedly installed on the left side of the one-way valve 28. An electromagnetic valve 210 is fixedly installed below the receiving pipe 2. A glue outlet 211 is fixedly installed below the electromagnetic valve 210.

[0030] The inner diameter of the receiving pipe 2 is smaller than the diameter of the gasket 12. The limiting frame 21 and the front vertical surface of the receiving pipe 2 enclose a rectangular pipe structure. The slider 22 is installed between the limiting frame 21 and the receiving pipe 2. The movable rollers 23 are symmetrically installed above and below, and left and right on the front side of the slider 22. And the rear side of the movable roller 23 is located behind the rear vertical surface of the slider 22 and contacts the front vertical surface of the receiving pipe 2. A concave structure for fitting the movable roller 23 is provided on the rear vertical surface of the limiting plate 24.

[0031] The limiting plate 24 is fixed to the front side of the slider 22 by screws. The magnet 25 penetrates the limiting plate 24 and the slider 22. The rear end of the magnet 25 does not contact the receiving pipe 2. The connecting pipe 27 is installed at the lower left side of the receiving pipe 2. And the connecting pipe 27 penetrates the left vertical surface of the receiving pipe 2 and communicates with the inner cavity of the receiving pipe 2. The glue outlet 211 is of a conical structure.

[0032] Specifically, the receiving pipe 2 can facilitate the reception of the colloid. The limiting frame 21 can limit the position of the slider 22. The slider 22 and the limiting plate 24 can limit the positions of the movable roller 23 and the magnet 25. The movable roller 23 can facilitate the movement of the slider 22. The magnet 25 can facilitate the magnetic ring 13 to drive the slider 22 to move. The end plate 26 can prevent the connecting block 11 from sliding out of the top of the receiving pipe 2. The connecting pipe 27 can facilitate the connection between the one-way valve 28 and the receiving pipe 2. The one-way valve 28 can prevent the colloid from flowing back. The feeding pipe 29 can facilitate the entry of the colloid into the receiving pipe 2. The electromagnetic valve 210 can close the lower end of the receiving pipe 2. The glue outlet 211 can facilitate the discharge of the colloid.

[0033] In use, the solenoid valve 210 is fixedly installed between the receiving pipe 2 and the glue outlet 211. When the solenoid valve 210 is closed, the receiving pipe 2 will not be able to communicate with the glue outlet 211, and the bottom end of the receiving pipe 2 is in a closed state. At the same time, the inner diameter of the receiving pipe 2 is smaller than the diameter of the sealing gasket 12. When the sealing gasket 12 is located inside the receiving pipe 2, the sealing gasket 12 will be deformed under pressure, so as to fill the gap between the connecting block 11 and the receiving pipe 2. During the process of the lower pressing piston 1 driving the connecting block 11 and the sealing gasket 12 to move upward, the pressure inside the lumen of the receiving pipe 2 will be reduced, and the external air pressure will press the colloid from the feeding pipe 29 into the one-way valve 28 and enter the inside of the receiving pipe 2 through the connecting pipe 27. This method can avoid the overflow of the colloid from the glue outlet 211 during the process of re-adding the colloid. When the lower pressing piston 1 is at the elongation limit, the connecting block 11 will be located above the connecting pipe 27 at the bottom of the receiving pipe 2, and the bottom end of the slider 22 will be flush with the bottom end of the receiving pipe 2. When the lower pressing piston 1 drives the connecting block 11 and the sealing gasket 12 to move upward to pump the colloid into the inside of the receiving pipe 2, the magnetic ring 13 will drive the slider 22 to move upward through the magnet 25, and the bottom end of the slider 22 will be flush with the liquid level. Since the rear side of the movable roller 23 is behind the rear vertical surface of the slider 22 and contacts the front vertical surface of the receiving pipe 2, the magnet 25 passes through the limiting plate 24 and the slider 22, and the movable roller 23 is used to reduce the friction force of the slider 22 during sliding. This method can facilitate the intuitive display of the position of the liquid level inside the lumen, so as to facilitate the detection of the lumen liquid level.

[0034] Although the embodiments of the present invention have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principle and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A glue pushing device capable of liquid level detection, characterized in that: include: A downward pressing piston (1), a connecting block (11) is inserted and installed below the downward pressing piston (1), a sealing gasket (12) is fixedly installed below the connecting block (11), a magnetic ring (13) is inserted and installed above the connecting block (11), a fixing bolt (14) is inserted and installed on the front side of the connecting block (11), a receiving pipe (2) is embedded and installed on the outer side of the sealing gasket (12), a limiting frame (21) is fixedly installed on the front side of the receiving pipe (2), a sliding block (22) is movably installed inside the limiting frame (21), and a movable roller (22) is embedded and installed on the front side of the sliding block (22) 23), a limit plate (24) is fixedly installed on the front side of the slider (22), a magnet (25) is fixedly installed at the center of the limit plate (24), an end plate (26) is fixedly installed on the top of the receiving tube (2), a connecting tube (27) is fixedly installed on the left side of the receiving tube (2), a one-way valve (28) is fixedly installed on the left side of the connecting tube (27), a feed pipe (29) is fixedly installed on the left side of the one-way valve (28), a solenoid valve (210) is fixedly installed below the receiving tube (2), and a glue outlet (211) is fixedly installed below the solenoid valve (210).

2. A glue pushing device with liquid level detection according to claim 1, characterized in that: The connecting block (11) is a cylindrical structure, the upper end of the connecting block (11) is provided with an open hole structure engaged with the movable end of the pressing piston (1), and the outer side of the sealing gasket (12) is provided with annular protrusions at equal vertical distances.

3. The glue pushing device with liquid level detection according to claim 1, characterized in that: The installation position of the magnetic ring (13) is located above the sealing gasket (12), and the fixing bolt (14) passes through the connecting block (11) and is fixed to the position of the pressing piston (1) by a nut.

4. The glue pushing device with liquid level detection according to claim 1, characterized in that: The inner diameter of the receiving tube (2) is smaller than the diameter of the sealing gasket (12); the limiting frame (21) and the front side elevation of the receiving tube (2) are combined to form a rectangular pipe structure; and the sliding block (22) is installed between the limiting frame (21) and the receiving tube (2).

5. The glue pushing device with liquid level detection according to claim 1, characterized in that: The movable roller (23) is symmetrically installed on the front side of the slider (22) in an up-down and left-right manner, and the rear side of the movable roller (23) is located behind the rear side vertical surface of the slider (22) and contacts the front side vertical surface of the receiving tube (2), and the rear side vertical surface of the limiting plate (24) is provided with a recessed structure that is engaged with the movable roller (23).

6. The glue pushing device with liquid level detection according to claim 1, characterized in that: The limiting plate (24) is fixed to the front side of the slider (22) by means of screws, the magnet (25) penetrates the limiting plate (24) and the slider (22), and the rear end of the magnet (25) does not contact the receiving tube (2).

7. The glue pushing device with liquid level detection according to claim 1, characterized in that: The connecting pipe (27) is installed at the lower end of the left side of the receiving pipe (2), and the connecting pipe (27) passes through the left side vertical surface of the receiving pipe (2) and is connected with the inner cavity of the receiving pipe (2), and the glue outlet (211) is a conical structure.

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