Breather valve for material pressing machine

Abstract

The breather valve for the material pressing machine comprises a shell, a valve cover and a valve element, a straight hole and a conical hole which are communicated with each other are formed in the shell, the valve element comprises a straight section and a conical section, and at least one groove used for exhausting is formed in the side wall of the straight section; the valve cover is arranged at the top of the shell, and an exhaust hole is formed in the valve cover; a connecting rod is arranged on the valve cover, extends into the shell and is connected with the valve core; and an elastic element is arranged between the valve core and the valve cover. The breather valve for the material pressing machine is simple in structure, the one-way exhaust function can be achieved in the material pressing process, pressed materials are not prone to entering the breather valve, and sending blockage is avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of valves, in particular to a breathing valve for a material pressing machine. Background Art

[0002] In the prior art, due to the lack of dedicated breathing valves for feed presses, conventional valves are often installed on the feed cover. While this allows for air to be exhausted, it is prone to malfunctions such as blockage and damage. In view of the above technical issues, the present utility model proposes a breathing valve specifically for feed presses. This valve not only enables one-way exhaust of air from the feed barrel of the feed press, but is also less prone to malfunctions. Furthermore, it features a simple structure, low manufacturing cost, and ease of assembly and disassembly. Utility Model Content

[0003] In view of the above-mentioned deficiencies in the prior art, the purpose of the present invention is to provide a breathing valve for a material pressing machine, aiming to solve the technical problem that the material pressing machine in the prior art lacks a dedicated breathing valve.

[0004] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0005] A breathing valve for a material pressing machine includes a shell, a valve cover and a valve core. The shell is provided with a straight hole and a tapered hole that are interconnected. The valve core includes a straight section and a tapered section. The side wall of the straight section is provided with at least one groove for exhaust. The valve cover is arranged on the top of the shell and is provided with an exhaust hole. The valve cover is provided with a connecting rod, which extends into the shell and is connected to the valve core. An elastic element is provided between the valve core and the valve cover.

[0006] Furthermore, in the breathing valve for the material press, the elastic element is a spring sleeved on the connecting rod, one end of the spring is against the valve core, and the other end is against the valve cover.

[0007] Furthermore, in the breathing valve for the material pressing machine, an annular flange is provided at the bottom of the shell, and the annular flange is provided with at least two connecting holes.

[0008] Furthermore, in the breathing valve for the material press, an annular groove is provided at the bottom of the straight section, and a sealing ring is provided in the annular groove.

[0009] Furthermore, in the breathing valve for the material pressing machine, the valve cover and the shell are threadedly connected.

[0010] Furthermore, in the breathing valve for the material pressing machine, the connecting rod and the valve core are threadedly connected.

[0011] Furthermore, in the breathing valve for the material pressing machine, the connecting rod is provided with an external thread, and the top of the valve core is provided with a threaded hole.

[0012] Furthermore, in the breathing valve for the pressing machine, the connecting rod is a hexagon socket bolt.

[0013] Beneficial Effects: The present invention provides a breathing valve for a material pressing machine. Compared to the prior art, the invention provides a breathing valve for a material pressing machine. By providing interconnected straight and tapered holes in the housing, the valve core is provided with corresponding straight and tapered sections, and an elastic element is provided between the valve core and the valve cover, thereby achieving one-way exhaust during the pressing process. During the pressing process, the valve core gradually moves upward after contacting the pressed material. After the air is exhausted, the valve core closes, ensuring that material does not enter the valve core during the pressing process. Therefore, it is not easy to cause clogging or damage. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 This is a three-dimensional diagram of the breathing valve for a material pressing machine proposed in the utility model.

[0015] Figure 2 This is a top view of the breathing valve for a material pressing machine proposed in the utility model.

[0016] Figure 3 for Figure 2 Middle AA section view.

[0017] Figure 4 This is a three-dimensional diagram of the valve core.

[0018] Figure 5 This is a schematic diagram of a breathing valve for a press machine being set on a press cover.

[0019] Figure 6 for Figure 5 A local magnified view of the middle S region;

[0020] Figure 7 It is a three-dimensional diagram of the material pressing cover and the material barrel in the prior art.

[0021] Numbers in the figure:

[0022] 1. Housing; 101. Straight hole; 102. Tapered hole; 12. Annular flange; 120. Connecting hole;

[0023] 2. Valve core; 21. Straight section; 22. Conical section; 201. Threaded hole; 202. Groove;

[0024] 3. Valve cover; 30. Exhaust hole;

[0025] 4. Connecting rod;

[0026] 5. Spring;

[0027] 91. Pressing cover; 910. Threaded hole on the pressing cover; 92. Material barrel; 93. Valve. DETAILED DESCRIPTION

[0028] The present invention provides a breathing valve for a material pressing machine. To make the purpose, technical solution and effect of the present invention clearer and more specific, the present invention is further described in detail below. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention.

[0029] See also Figures 1 to 6 The present invention provides a breathing valve for a material pressing machine. The accompanying drawings are only used to explain the structural principles and are not proportional to the actual product. The accompanying drawings only depict structures related to the invention points of this application, and some conventional structures are not specifically depicted.

[0030] First see Figures 1 to 4 The breathing valve for a feed press comprises a housing 1, a valve cover 3, and a valve core 2. The housing defines a straight hole 101 and a tapered hole 102, which are interconnected. The valve core comprises a straight section 21 and a tapered section 22, with at least one exhaust groove 202 disposed on the sidewall of the straight section. The valve cover is disposed on the top of the housing and is provided with an exhaust hole 30. A connecting rod is provided on the valve cover, which extends into the housing and connects to the valve core. The straight hole and the straight section have matching shapes, and the tapered hole and the straight section have matching shapes. An elastic element 5 is disposed between the valve core and the valve cover. The straight hole is preferably a circular hole (so that the straight section has a cylindrical shape), but is not limited thereto and may also have other shapes.

[0031] By providing an elastic element, the spring generates elastic force on the valve core during the pressing process, so that the valve core will not be suddenly completely closed, thereby ensuring that the air can be discharged normally.

[0032] Furthermore, the elastic element 5 is a spring sleeved on the connecting rod, with one end of the spring abutting against the valve core and the other end abutting against the valve cover. This arrangement facilitates the installation of the elastic element, as the spring can be directly sleeved on the connecting rod without the need for a dedicated mounting groove and guide rod for the elastic element.

[0033] Furthermore, the bottom of the housing is provided with an annular flange 12, which is provided with at least two connection holes 120. This arrangement facilitates the connection between the housing and the pressure cover 9. Figure 5 and Figure 6 As shown, the upper surface of the annular flange and the lower surface of the pressure cover are in contact with each other, and the pressure cover 9 is correspondingly provided with threaded holes 90. Bolts are inserted into each connection hole and screwed into the threaded holes to achieve the connection between the shell and the pressure material.

[0034] Furthermore, the valve cover and housing are threadedly connected. Specifically, the valve cover is provided with internal threads, while the housing is provided with external threads. This arrangement not only facilitates the connection between the valve cover and housing, but also expands the application scenarios of the breathing valve: when the breathing valve is not used for breathing, the valve cover and valve core can be removed, and the top of the housing can be connected to a pipe for discharge.

[0035] Furthermore, the connecting rod is threadedly connected to the valve core. This arrangement makes the connection between the connecting rod and the valve core very simple. Specifically, the connecting rod is provided with external threads, and the top of the valve core 2 is provided with a threaded hole 201. The bottom of the connecting rod is screwed into the threaded hole at the top of the valve core.

[0036] Preferably, the connecting rod is a hexagon socket bolt. This arrangement further simplifies the structure of the connecting rod.

[0037] In actual use, the breathing valve for the press is set on the press cover of the press, the shell extends upward from the press cover, and the valve cover is set on the shell. Figure 6 It can be observed that the bottom end of the shell is flush with the lower surface of the pressure cover. Figure 2 and Figure 6 It can be seen that under normal circumstances, the bottom end of the valve core is lower than the bottom end of the shell. The purpose of this setting is that when pressing the material, the valve core first contacts the material, and then the valve core moves upward until it closes.

[0038] During pressing, the pressure cover and valve core initially have no contact with the material. Air within the press barrel (not shown) is discharged upward through the grooves on the valve core's sidewalls and ultimately to the atmosphere through the vent holes in the valve cover. As the pressure cover presses downward, the bottom of the valve core contacts the material and gradually moves upward until the core is fully closed. This means that all air is expelled and the valve core closes, preventing material from entering the core during pressing. When pressing is complete, the pressure cover rises away from the material, and the valve core pops downward under the force of the spring.

[0039] It should be noted that, for ease of understanding, the drawing shows a pressure cover, but the pressure cover is not within the scope of protection of this application.

[0040] It is understandable that those skilled in the art can make equivalent substitutions or changes based on the technical solution and the utility model concept of the present invention, and all these changes or substitutions should fall within the scope of protection of the present invention.

Claims

1. A breathing valve for a material pressing machine, comprising a housing, a valve cover and a valve core, characterized in that: A straight hole and a tapered hole that are interconnected are provided in the shell, and the valve core includes a straight section and a tapered section. At least one groove for exhaust is provided on the side wall of the straight section; a valve cover is provided on the top of the shell, and an exhaust hole is provided on the valve cover; a connecting rod is provided on the valve cover, which extends into the shell and is connected to the valve core; an elastic element is provided between the valve core and the valve cover.

2. The breathing valve for a material pressing machine according to claim 1, characterized in that: The elastic element is a spring sleeved on the connecting rod, one end of the spring is against the valve core, and the other end is against the valve cover.

3. The breathing valve for a material pressing machine according to claim 1, characterized in that: The bottom of the shell is provided with an annular flange, and the annular flange is provided with at least two connecting holes.

4. The breathing valve for a material pressing machine according to claim 1, characterized in that: An annular groove is provided at the bottom of the straight section, and a sealing ring is provided in the annular groove.

5. The breathing valve for a material pressing machine according to claim 1, characterized in that: The valve cover is threadedly connected to the housing.

6. The breathing valve for a material pressing machine according to claim 1, characterized in that: The connecting rod and the valve core are threadedly connected.

7. The breathing valve for a material pressing machine according to claim 6, characterized in that: The connecting rod is provided with an external thread, and the top of the valve core is provided with a threaded hole.

8. The breathing valve for a material pressing machine according to claim 7, characterized in that: The connecting rod is a hexagon socket bolt.

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