Embedded glue metering pneumatic on-off valve and gluing system

Abstract

The application discloses an embedded glue metering pneumatic on-off valve, which comprises a mounting plate, a cylinder body and a positioning sleeve. A hollow seat is coaxially arranged at the head end of the positioning sleeve. The hollow structure on the side of the hollow seat is a glue inlet. A glue outlet is arranged at the head end of the hollow seat. The head end of the positioning sleeve and the hollow seat extend into a metering cylinder. A valve rod is coaxially arranged in the positioning sleeve. The head end of the valve rod extends out of the hollow seat through the glue outlet. A valve core is arranged at the head end of the valve rod. The valve rod moves axially driven by a piston, so that the valve core blocks or opens the glue outlet. Since the positioning sleeve and the hollow seat of the on-off valve are arranged in the metering cylinder, the length of the flow channel is shortened, maintenance is facilitated, the size of the glue inlet and the glue outlet is increased through the hollow structure of the hollow seat, the pressure drop value generated by the valve body is reduced, the glue flowability is improved, and the valve body is convenient to disassemble, install and replace spare parts. The application further discloses a gluing system comprising the embedded glue metering pneumatic on-off valve.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of gluing equipment, in particular to an embedded glue metering pneumatic on-off valve. In addition, the present application also relates to a gluing system comprising the above-mentioned on-off valve. BACKGROUND

[0002] The gluing system is widely used in many technical fields. In the prior art, the gluing system fills the glue in the stirring tank into the metering cylinder through the transfer pump, then ensures the glue output through the precise displacement, and controls the discharge of the glue in the metering cylinder through the on-off valve. The on-off valve needs to be installed on the metering cylinder body through the base, and cannot be directly installed in the metering cylinder, which increases the length of the flow channel and is not easy to maintain. At the same time, the glue inlet diameter of the on-off valve is small, which causes the pressure drop value of the valve body part, affects the smooth flow of the glue, and reduces the flowability.

[0003] Therefore, how to provide an embedded glue metering pneumatic on-off valve which is convenient to maintain is a technical problem to be solved by those skilled in the art at present. SUMMARY

[0004] The purpose of the present application is to provide an embedded glue metering pneumatic on-off valve, which is convenient to maintain and increases the glue inlet to improve the flowability. Another purpose of the present application is to provide a gluing system comprising the above-mentioned on-off valve.

[0005] To solve the above technical problems, the present application provides an embedded glue metering pneumatic on-off valve, comprising a mounting plate, a cylinder body mounted at the end face of the mounting plate, and a positioning sleeve mounted at the first end face of the mounting plate, wherein the first end of the positioning sleeve is coaxially provided with a hollow seat, the hollow structure of the side surface of the hollow seat is a glue inlet, the first end of the hollow seat is provided with a glue outlet, the first end of the positioning sleeve and the hollow seat extend into the metering cylinder, a valve rod is coaxially mounted in the positioning sleeve, the end of the valve rod penetrates through the mounting plate and is fixedly connected with a piston in the cylinder body, the first end of the valve rod extends out of the hollow seat through the glue outlet, a valve core is mounted at the first end of the valve rod, and the piston drives the valve rod to move axially so that the valve core blocks or opens the glue outlet.

[0006] Preferably, the hollow seat comprises a terminal ring and a first end ring which are coaxially arranged, a plurality of supporting rods are arranged uniformly in the circumferential direction between the terminal ring and the first end ring, and the hollow structure between adjacent supporting rods is the glue inlet.

[0007] Preferably, the three supporting rods are included, the diameter of the terminal ring is smaller than that of the first end ring, and the middle part of the supporting rod is provided with an arc-shaped bending.

[0008] Preferably, a guide sleeve is mounted in the positioning sleeve, the valve rod passes through the guide sleeve, the end of the guide sleeve abuts against the mounting plate, and the first end of the guide sleeve abuts against the hollow seat.

[0009] Preferably, a gap is arranged between the inner side of the guide sleeve and the outer side of the valve rod, the gap is filled with a lubricating medium, and a pan seal is arranged between the end of the guide sleeve and the mounting plate and between the first end of the guide sleeve and the hollow seat.

[0010] Preferably, a lubricating oil inlet is arranged on the upper edge of the mounting plate, a failure throat seal liquid outlet is arranged on the side edge of the mounting plate, lubricating ports are arranged on the upper and lower sides of the horizontally extending guide sleeve, and channels are arranged at the connection between the mounting plate and the positioning sleeve, and the lubricating ports are respectively connected to the lubricating oil inlet and the failure throat seal liquid outlet.

[0011] Preferably, a locking nut is mounted at the first end of the valve rod to press the valve core.

[0012] Preferably, a tungsten steel ring is mounted at the glue outlet of the hollow seat.

[0013] Preferably, the diameter of the tungsten steel ring is greater than the diameter of the positioning sleeve.

[0014] The present application provides a glue coating system, which comprises a metering cylinder and an embedded glue metering pneumatic on-off valve mounted on the metering cylinder, and the embedded glue metering pneumatic on-off valve is any one of the above-mentioned valves.

[0015] The present application provides an embedded glue metering pneumatic on-off valve, which comprises a mounting plate, a cylinder body mounted on the end surface of the mounting plate, and a positioning sleeve mounted on the first end surface of the mounting plate, the first end of the positioning sleeve is coaxially provided with a hollow seat, the hollow structure on the side surface of the hollow seat is a glue inlet, the first end of the hollow seat is provided with a glue outlet, the first end of the positioning sleeve and the hollow seat extend into the metering cylinder, a valve rod is coaxially mounted in the positioning sleeve, the end of the valve rod passes through the mounting plate and is fixedly connected to a piston in the cylinder body, the first end of the valve rod extends out of the hollow seat through the glue outlet, a valve core is mounted on the first end of the valve rod, and the piston drives the valve rod to move axially so as to block or open the glue outlet.

[0016] In the working process, the glue in the metering cylinder enters the hollow seat from the glue inlet, reaches the glue outlet, when it is needed to be opened, the gas pushes the piston to move to the head end, and then drives the valve rod to move to the head end along the axial direction, so that the valve core is separated from the glue outlet, and the glue is discharged from the glue outlet, when it is needed to be closed, the piston is moved to the tail end, and then the valve rod is driven to move to the tail end along the axial direction, so that the valve core blocks the glue outlet, and the glue cannot be discharged from the glue outlet. Since the positioning sleeve and the hollow seat of the on-off valve are installed in the metering cylinder, the length of the flow channel is shortened, maintenance is facilitated, the size of the glue inlet and the glue outlet is increased through the hollow structure of the hollow seat, the pressure drop value generated by the valve body is reduced, the glue flowability is improved, and the valve body is convenient to disassemble and install and convenient to replace spare parts.

[0017] The application also provides a gluing system comprising the embedded glue metering pneumatic on-off valve, and the gluing system also has the same technical effects as the embedded glue metering pneumatic on-off valve, and details are not described herein. BRIEF DESCRIPTION OF DRAWINGS

[0018] Figure 1 FIG. 1 is a cross-sectional structure schematic diagram of one specific embodiment of the embedded glue metering pneumatic on-off valve provided by the application;

[0019] Figure 2 FIG. 2 is an external structure schematic diagram of one specific embodiment of the embedded glue metering pneumatic on-off valve provided by the application. DETAILED DESCRIPTION

[0020] The core of the application is to provide an embedded glue metering pneumatic on-off valve, the positioning sleeve is installed in the metering cylinder, maintenance is facilitated, and the glue inlet is increased to improve the flowability. Another core of the application is to provide a gluing system comprising the on-off valve.

[0021] In order for those skilled in the art to better understand the application scheme, the application is further described in detail below with reference to the drawings and specific embodiments.

[0022] Please refer to Figure 1 and Figure 2 , Figure 1 FIG. 1 is a cross-sectional structure schematic diagram of one specific embodiment of the embedded glue metering pneumatic on-off valve provided by the application; Figure 2 FIG. 2 is an external structure schematic diagram of one specific embodiment of the embedded glue metering pneumatic on-off valve provided by the application.

[0023] The embodiment of the present application provides an embedded glue metering pneumatic on-off valve, which comprises a mounting plate 1, a cylinder body 2 and a positioning sleeve 3, each part is proximal to one end of the cylinder body 2 as a terminal end, and is distal to the other end of the cylinder body 2 as a leading end, the cylinder body 2 is installed on the terminal end surface of the mounting plate 1, the positioning sleeve 3 is installed on the leading end surface of the mounting plate 1, and the leading end of the positioning sleeve 3 is coaxially provided with a hollow seat 4, the hollow structure of the side surface of the hollow seat 4 is a glue inlet 4-1, the leading end of the hollow seat 4 is provided with a glue outlet 4-2, the glue inlet 4-1 and the glue outlet 4-2 are communicated in a hollow manner, that is, the axis of the glue inlet 4-1 is perpendicular to the axis of the hollow seat 4, and the axis of the glue outlet 4-2 coincides with the axis of the hollow seat 4. During installation, the leading end of the positioning sleeve 3 and the hollow seat 4 extend into the metering cylinder, and further, corresponding connecting structures can be arranged on the mounting plate 1, so that the mounting plate 1 is stably connected with corresponding equipment of the metering cylinder, specifically, a rectangular mounting plate 1 can be used, and four mounting holes are arranged at four corners of the mounting plate 1, the mounting plate 1 and the metering cylinder are connected through bolts, of course, other connecting modes can also be used, which are all within the protection scope of the present application.

[0024] A valve rod 5 is coaxially installed in the positioning sleeve 3, the terminal end of the valve rod 5 penetrates through the mounting plate 1 and is fixedly connected with a piston 6 in the cylinder body 2, and a wrench groove is arranged to facilitate disassembly and assembly, specifically, the piston 6 is arranged in the cylinder body 2, the leading end surface of the piston 6 is provided with a piston rod, the piston rod is connected with the terminal end of the valve rod 5 through bolts, and a spring is arranged between the piston 6 and the cylinder body 2, the piston 6 moves towards the leading end and is pushed by gas, the piston 6 moves towards the terminal end and is pushed by the spring, or other driving modes can also be used, for example, the spring is arranged on the terminal end surface of the piston 6, or no spring is arranged on both ends, and the piston 6 is pushed to move towards both ends by gas.

[0025] The leading end of the valve rod 5 extends out of the hollow seat 4 from the glue outlet 4-2, a valve core 7 is arranged on the leading end of the valve rod 5, the valve core 7 is located outside the hollow seat 4, the piston 6 drives the valve rod 5 to move axially, so that the valve core 7 blocks or opens the glue outlet 4-2. Further, a conical surface towards the glue outlet 4-2 can be arranged on the valve core 7, so that the valve core 7 partially extends into the glue outlet 4-2, and the conical surface tightly abuts the edge of the glue outlet 4-2, so as to guarantee the sealing effect.

[0026] In the working process, the glue in the metering cylinder enters the inside of the hollow seat 4 from the glue inlet 4-1, reaches the glue outlet 4-2, when it is needed to be opened, the gas pushes the piston 6 to move towards the first end, and then drives the valve rod 5 to move axially towards the first end, so that the valve core 7 is separated from the glue outlet 4-2, and the glue is discharged from the glue outlet 4-2, when it is needed to be closed, the piston 6 is moved towards the end, and then drives the valve rod 5 to move axially towards the end, so that the valve core 7 blocks the glue outlet 4-2, and the glue cannot be discharged from the glue outlet 4-2. Since the positioning sleeve 3 and the hollow seat 4 of the on-off valve are partially installed in the metering cylinder, the length of the flow channel is shortened, maintenance is facilitated, the size of the glue inlet 4-1 and the glue outlet 4-2 is increased through the hollow structure of the hollow seat 4, the pressure drop value generated by the valve body is reduced, the glue flowability is improved, and the valve body is convenient to disassemble and install and convenient to replace spare parts.

[0027] In the embedded glue metering pneumatic on-off valve provided by the embodiment of the present application, the hollow seat 4 includes a coaxially arranged end ring and a first end ring, a plurality of supporting rods are arranged between the end ring and the first end ring in a circumferential direction, and the hollow structure between adjacent supporting rods is the glue inlet 4-1. Specifically, the hollow seat 4 can be understood as a cylindrical structure, the end ring and the first end ring are the first end opening and the end opening of the cylindrical structure, a plurality of through holes are dug on the side wall of the cylindrical structure, which are the glue inlets 4-1, and the hollow structure is formed, the valve rod 5 enters the hole of the end ring and the hole of the first end ring extends out, and the hole of the first end ring is the glue outlet 4-2, when the glue flows, the glue enters the cylindrical structure through the hole on the side wall and then flows out through the hole of the first end ring, and the hole of the end ring is blocked by the related structure to prevent the glue from overflowing. It can also be understood that the first end ring and the end ring arranged in a coaxial and opposite manner have a certain distance therebetween, a plurality of supporting rods are arranged therebetween for support, and the working principle is as described above.

[0028] Specifically, three supporting rods can be included, and the three-part hollow structure form can guarantee the flowability under effective structural strength, the structure of the equal-section flow opening reduces the pressure drop value generated by the valve body, the number of supporting rods can be adjusted, that is, the number of corresponding hollow holes is adjusted, further, the diameter of the end ring is smaller than that of the first end ring, the size of the glue outlet 4-2 is increased, the hole of the end ring is blocked, the reliability of the equipment is improved, and an arc-shaped bend can be arranged in the middle of the supporting rod to form a smooth and complete structure, which is convenient for installation and processing.

[0029] In order to ensure the smooth movement of the valve stem 5, a guide sleeve 8 is arranged in the positioning sleeve 3, the guide sleeve 8 is coaxial with the positioning sleeve 3 and the valve stem 5, the valve stem 5 passes through the guide sleeve 8, so that the valve stem 5 moves axially along the guide sleeve 8, and then the extension length of the first end of the valve stem 5 is controlled. The end of the guide sleeve 8 abuts against the mounting plate 1, and the first end of the guide sleeve 8 abuts against the hollow seat 4, so that the axial position of the guide sleeve 8 is limited. Specifically, the end of the guide sleeve 8 can be arranged to extend into the positioning hole in the corresponding position of the mounting plate 1, so that the positioning and installation of the guide sleeve 8 are facilitated.

[0030] Further, a groove can be arranged in the middle of the inner side of the guide sleeve 8, so that a gap is arranged between the inner side of the guide sleeve 8 and the outer side of the valve stem 5, and the gap is filled with a lubricating medium, so that the valve stem 5 moves more smoothly in the guide sleeve 8. Further, in order to prevent the leakage of the lubricating medium, the gap needs to be sealed, therefore, the seal 9 is arranged between the end of the guide sleeve 8 and the mounting plate 1, and between the first end of the guide sleeve 8 and the hollow seat 4.

[0031] Preferably, the upper edge of the mounting plate 1 is provided with a lubricating oil inlet 1-1, the side edge of the mounting plate 1 is provided with a failed throat seal liquid outlet 1-2, the horizontally extending guide sleeve 8 is provided with lubricating ports on the upper side and the lower side, and the connection between the mounting plate 1 and the positioning sleeve 3 is formed into a channel by processing gaps, grooves and the like structures, so that the upper lubricating port is connected to the lubricating oil inlet 1-1, and the lower lubricating port is connected to the failed throat seal liquid outlet 1-2. The throat seal liquid enters the lubricating cavity of the guide sleeve 8 from the lubricating oil inlet 1-1 to lubricate the valve stem 5, so as to increase the service life and sealing effect of the sealing element, and the failed throat seal liquid can be discharged at the failed throat seal liquid outlet 1-2. The structure with four direction through holes can ensure the flowability under the effective structural strength. Pipe joints and the like components can be arranged at the lubricating oil inlet 1-1 and the failed throat seal liquid outlet 1-2, so as to facilitate the connection of related equipment.

[0032] In order to fix the valve core 7, an external thread is arranged at the first end of the valve stem 5, during installation, the valve core 7 is sleeved on the first end of the valve stem 5, and abuts against the step on the valve stem 5, so that the external thread leaks out, then the locking nut 10 is installed on the first end of the valve stem 5, and the valve core 7 is pressed by the locking nut 10, of course, other fixing modes can also be adopted, such as the valve core 7 is directly threadedly connected with the valve stem 5, or a clamping mode is adopted, all of which are within the protection scope of the present application. Meanwhile, sealing elements of sealing rings are arranged at the sealing positions of the device, so as to ensure the reliability of the equipment.

[0033] On the basis of the embedded glue metering pneumatic on-off valve provided in the above embodiments, the tungsten ring 11 is installed at the glue outlet 4-2 of the hollow seat 4, that is, the center hole of the tungsten ring 11 is the glue outlet 4-2, and the valve core 7 is pressed on the tungsten ring 11 during work. The strength is improved through the tungsten ring 11, wherein the hollow seat 4 and the tungsten ring 11 can be designed in an integrated manner, and can also be designed in a split manner, the contact surface is chamfered, and a corresponding positioning groove can also be arranged at the head of the hollow seat 4, wherein the guide sleeve 8 is a copper sleeve, and other materials can also be used, which are all within the protection scope of the present application.

[0034] Further, the diameter of the tungsten ring 11 is greater than the diameter of the positioning sleeve 3, facilitating installation.

[0035] In addition to the embedded glue metering pneumatic on-off valve, the embodiments of the present application also provide a gluing system comprising the embedded glue metering pneumatic on-off valve, and the structures of other parts of the gluing system refer to the prior art, which will not be described herein.

[0036] The embedded glue metering pneumatic on-off valve and the gluing system provided by the present application are described in detail above. The principles and embodiments of the present application are described by applying specific examples in this paper, and the above examples are only used to help understand the method of the present application and its core idea. It should be pointed out that, for ordinary skilled persons in the technical field, some improvements and modifications can be made to the present application without departing from the principles of the present application, and these improvements and modifications also fall within the protection scope of the claims of the present application.

Claims

1. An inline glue metering pneumatic on / off valve characterized by, The application relates to a kind of embedded glue metering pneumatic on-off valve, including mounting plate (1) and the cylinder barrel (2) of installing to the end surface of the mounting plate (1) and the positioning sleeve (3) of installing to the head end surface of the mounting plate (1), the head end of the positioning sleeve (3) is coaxially provided with hollow seat (4), the hollow structure of the side surface of the hollow seat (4) is glue inlet (4-1), the head end of the hollow seat (4) is provided with glue outlet (4-2), the head end of the positioning sleeve (3) and the hollow seat (4) are inserted into metering cylinder, the valve stem (5) is coaxially installed in the positioning sleeve (3), the end of the valve stem (5) passes through the mounting plate (1) and is fixedly connected with the piston (6) in the cylinder barrel (2), the head end of the valve stem (5) is stretched out from the hollow seat (4) by the glue outlet (4-2), the valve stem (5) is installed with valve core (7), the piston (6) drives the valve stem (5) to move axially, so that the valve core (7) blocks or opens the glue outlet (4-2); The hollow seat (4) includes coaxially arranged end ring and head ring, a plurality of support rods are arranged between the end ring and the head ring in a circumferential direction, and the hollow structure between adjacent support rods is the glue inlet (4-1); Three support rods are included, the diameter of the end ring is smaller than the diameter of the head ring, and the middle part of the support rod is provided with an arc-shaped bend; The positioning sleeve (3) is provided with a guide sleeve (8), the valve stem (5) passes through the guide sleeve (8), the end of the guide sleeve (8) abuts against the mounting plate (1), and the head end of the guide sleeve (8) abuts against the hollow seat (4); A gap is arranged between the inner side of the guide sleeve (8) and the outer side of the valve stem (5), the gap is filled with a lubricating medium, and a pan seal (9) is arranged between the end of the guide sleeve (8) and the mounting plate (1) and between the head end of the guide sleeve (8) and the hollow seat (4).

2. The inline glue metering pneumatic on / off valve of claim 1, wherein, A lubricating oil inlet (1-1) is arranged on the upper edge of the mounting plate (1), a failure throat seal liquid outlet (1-2) is arranged on the side edge of the mounting plate (1), lubricating ports are arranged on the upper side and the lower side of the horizontally extending guide sleeve (8), a channel is arranged at the connection between the mounting plate (1) and the positioning sleeve (3), and the lubricating ports are respectively connected with the lubricating oil inlet (1-1) and the failure throat seal liquid outlet (1-2).

3. The inline glue metering pneumatic on / off valve of claim 1, wherein, A locking nut (10) is arranged at the head end of the valve stem (5) to press the valve core (7).

4. The inline glue metering pneumatic on / off valve according to any one of claims 1 to 3, characterized in that, A tungsten ring (11) is arranged at the glue outlet (4-2) of the hollow seat (4).

5. The inline glue metering pneumatic on / off valve of claim 4, wherein, The diameter of the tungsten ring (11) is greater than the diameter of the positioning sleeve (3).

6. A gluing system characterized by, The application further relates to a kind of embedded glue metering pneumatic on-off valve, including metering cylinder and the embedded glue metering pneumatic on-off valve of installing to the metering cylinder, and the embedded glue metering pneumatic on-off valve is specifically the embedded glue metering pneumatic on-off valve in any one of claims 1 to 5.

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