Air cylinder with adjustable valve needle

Abstract

The utility model discloses an air cylinder with an adjustable valve needle, which relates to the technical field of air cylinders, and comprises a cylinder body, an adjusting mechanism is arranged in the cylinder body, the adjusting mechanism comprises a sliding body and a sliding body, and the sliding body is arranged in the cylinder body in a sliding manner; an adjusting groove is formed in the sliding body, internal threads are arranged on the inner wall of the adjusting groove, and the valve needle adjusting block is connected with an inner cavity of the adjusting groove; the adjusting block pipe plug is arranged in the adjusting groove in a sliding mode and used for shielding the valve needle adjusting block; the valve needle pipe plug is arranged in the valve needle adjusting block, and one end of the valve needle penetrates through the valve needle adjusting block to be fixedly connected with the valve needle pipe plug. The arrangement mode that the valve needle adjusting block, the adjusting block pipe plug and the valve needle pipe plug are matched is utilized, the adjusting block pipe plug is opened, the position of the valve needle is adjusted through the valve needle adjusting block, and therefore the cylinder cover does not need to be disassembled, the height of the valve needle can be adjusted, a new valve needle does not need to be manufactured, and cost and mold testing time are saved.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of air cylinder, especially a kind of air cylinder of adjustable valve needle. BACKGROUND

[0002] There are air cylinder and valve needle on the mold, which play a crucial role in the operation of the mold. As a power source, air cylinder can provide powerful driving force for the action of valve needle through the push of compressed air. Valve needle is responsible for accurately controlling the flow of materials inside the mold or other key operations.

[0003] But the height of valve needle is fixed in the mold, cannot be adjusted, so as to cause deviation of valve needle when sealing glue in the mold due to thermal expansion, mold machining precision, valve needle machining precision and other factors, which leads to either valve needle will penetrate into product interior, affect product quality and appearance;Or it can't seal glue well, cause poor sealing, affect the sealing performance of mold and production efficiency. UTILITY MODEL CONTENT

[0004] The utility model aims at providing a kind of air cylinder of adjustable valve needle to solve the problems raised in the above background technology.

[0005] To achieve the above object, the utility model provides the following technical scheme: a kind of air cylinder of adjustable valve needle, including cylinder body, the top of the cylinder body is fixedly connected with air cylinder cover, characterized by, the inside of the cylinder body is provided with valve needle, the inside of the cylinder body is provided with adjusting mechanism, the adjusting mechanism includes:

[0006] Slip body, the slip body is slidably arranged in the inside of cylinder body;

[0007] Valve needle adjusting block, the inside of the slip body is provided with adjusting groove, the inner wall of the adjusting groove is provided with internal thread, the valve needle adjusting block is threadedly connected with the inner cavity of adjusting groove;

[0008] Adjusting block throat plug, the adjusting block throat plug is slidably arranged in the inside of adjusting groove, for shielding valve needle adjusting block;

[0009] Valve needle throat plug, the valve needle throat plug is arranged in the inside of valve needle adjusting block, one end of the valve needle is fixedly connected with valve needle throat plug by passing through valve needle adjusting block, the other end of the valve needle is slidably connected with cylinder body.

[0010] Preferably, the top of the valve needle adjusting block is provided with recess, and the cross section of the recess is hexagonal.

[0011] Preferably, the outer wall of the slip body is provided with annular groove, and the inside of the annular groove is provided with first sealing ring.

[0012] Preferably, the inner wall of the cylinder is symmetrically provided with an inner snap spring, and the inside of the cylinder is symmetrically provided with a second sealing ring, and the inner snap spring and the second sealing ring are matched with each other.

[0013] Preferably, one side of the cylinder is fixedly connected with a first gas path, and one side of the cylinder is fixedly connected with a second gas path, and the first gas path and the second gas path are used for controlling the movement of the sliding body by feeding air into the inside of the cylinder.

[0014] The technical effects and advantages of the present application are as follows:

[0015] The present application utilizes the matched arrangement of the sliding body, the valve needle adjusting block, the adjusting block throat plug and the valve needle throat plug, and the position of the valve needle can be adjusted by the valve needle adjusting block when the adjusting block throat plug is opened, without the complicated disassembly of the cylinder head, avoiding the large-scale disassembly and reassembly of the whole mold structure, greatly improving the work efficiency, and without the need of a new valve needle, the height of the valve needle can be accurately adjusted by the existing adjusting device, effectively saving the cost, and in the mold testing process, the setting mode can quickly respond to the demand, timely adjust the position of the valve needle, greatly shorten the mold testing time, improve the product quality and production efficiency, and be convenient to use. BRIEF DESCRIPTION OF DRAWINGS

[0016] Figure 1 It is a schematic diagram of the internal structure of the whole front face of the present application.

[0017] In the figure: 1, cylinder; 2, cylinder head; 3, valve needle; 4, sliding body; 5, valve needle adjusting block; 6, adjusting block throat plug; 7, valve needle throat plug; 8, first sealing ring; 9, inner snap spring; 10, second sealing ring; 11, first gas path; 12, second gas path. DETAILED DESCRIPTION

[0018] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present application.

[0019] The present application provides a Figure 1The adjustable valve needle cylinder shown includes a cylinder body 1, the top end of the cylinder body 1 is fixedly connected with a cylinder cover 2, the inside of the cylinder body 1 is provided with a valve needle 3, the inside of the cylinder body 1 is provided with an adjusting mechanism, the adjusting mechanism includes a sliding body 4, a valve needle adjusting block 5, an adjusting block throat plug 6 and a valve needle throat plug 7, the sliding body 4 is slidingly arranged in the inside of the cylinder body 1; the inside of the sliding body 4 is provided with an adjusting groove, the inner wall of the adjusting groove is provided with internal threads, the valve needle adjusting block 5 is threadedly connected with the inner cavity of the adjusting groove; the adjusting block throat plug 6 is slidingly arranged in the inside of the adjusting groove and is used for shielding the valve needle adjusting block 5; the valve needle throat plug 7 is arranged in the inside of the valve needle adjusting block 5, one end of the valve needle 3 is fixedly connected with the valve needle throat plug 7 through the valve needle adjusting block 5, the other end of the valve needle 3 is slidingly connected with the cylinder body 1, the position of the valve needle 3 can be adjusted through the valve needle adjusting block 5 by opening the adjusting block throat plug 6, without the need for complicated disassembly of the cylinder cover 2, avoiding large-scale disassembly and reassembly of the entire mold structure, greatly improving the work efficiency, at the same time, without the need for new valve needles 3, the height of the valve needle 3 can be directly adjusted through the existing adjusting device, effectively saving the cost, in the mold testing process, this arrangement can quickly respond to the demand, timely adjust the position of the valve needle 3, greatly shorten the mold testing time, improve the product quality and production efficiency, and be convenient to use.

[0020] Further, the top end of the valve needle adjusting block 5 is provided with a groove, the cross section of the groove is hexagonal, the hexagonal structure has high stability, can make the valve needle adjusting block 5 maintain good rigidity during the adjusting process, is not easy to deform or shake, so as to ensure the accuracy and reliability of adjusting the position of the valve needle 3, secondly, the hexagonal shape is convenient for operation with specific tools, such as hexagonal wrenches, etc., can more conveniently tighten or loosen the valve needle adjusting block 5, improve the convenience and efficiency of operation, in addition, this special cross section shape can also increase the tightness and stability of cooperation with related parts, reduce the failure probability caused by looseness and other problems, help to improve the running stability and reliability of the whole system.

[0021] Specifically, the outer wall of the sliding body 4 is provided with an annular groove, the inside of the annular groove is provided with a first sealing ring 8, the first sealing ring 8 is embedded in the annular groove, can form a good sealing effect, effectively prevent gas from leaking from the gap between the sliding body 4 and the inner wall of the cylinder body 1, guarantee the stability and sealing performance of the internal gas pressure of the cylinder, improve the working efficiency and performance of the cylinder, and the annular groove can play a certain oil storage role, so that the lubricating oil can be stored in the annular groove, during the movement of the sliding body 4, the lubricating oil can continuously lubricate the contact surface between the sliding body 4 and the inner wall of the cylinder body 1, reduce the friction resistance, reduce wear and tear, prolong the service life of the cylinder body 1 and the sliding body 4, and ensure the long-term stable operation of the cylinder.

[0022] Further, the inner wall of the cylinder body 1 is symmetrically provided with an inner circlip 9, and the inside of the cylinder body 1 is symmetrically provided with a second sealing ring 10, the inner circlip 9 and the second sealing ring 10 cooperate with each other, the inner circlip 9 can play a fixing and positioning role, stably fix the second sealing ring 10 at a specific position inside the cylinder body 1, ensure the tightness of the cooperation between the second sealing ring 10 and the inside of the cylinder body 1, effectively prevent the leakage of gas or liquid inside the cylinder body 1, improve the sealing performance, guarantee the normal operation and working efficiency of the system, the cooperation between the inner circlip 9 and the second sealing ring 10 makes the whole sealing structure more stable, can withstand a certain pressure and impact force, reduces the sealing failure caused by vibration or external force, enhances the stability and reliability of the structure of the cylinder body 1, is beneficial to prolong the service life of the cylinder body 1 and related parts.

[0023] Further, one side of the cylinder body 1 is fixedly connected with a first gas path 11, and one side of the cylinder body 1 is fixedly connected with a second gas path 12, the first gas path 11 and the second gas path 12 are used for controlling the movement of the slider 4 by feeding gas into the inside of the cylinder body 1, by respectively arranging the first gas path 11 and the second gas path 12, the timing and flow of gas feeding can be independently controlled, so that the moving speed and stroke of the slider 4 can be accurately adjusted, the demand for position control of the slider 4 under different working conditions is met, the work of the system is more flexible and diverse, and the two different gas paths act on the inside of the cylinder body 1, even if one of the gas paths fails or the pressure fluctuates, the other gas path can still work, ensuring a certain degree of gas feeding control, reducing the risk of stopping the operation of the whole system due to the failure of a single gas path, and improving the stability and reliability of the system.

[0024] Finally, it should be noted that: the above only describes the preferred embodiments of the present application, and is not used to limit the present application, although the present application has been described in detail with reference to the foregoing embodiments, for those skilled in the art, the technical solutions recorded in the foregoing embodiments can be modified, or some technical features can be replaced, any modification, equivalent replacement, improvement, etc. within the spirit and principles of the present application shall be included in the protection scope of the present application.

Claims

1. An adjustable valve needle cylinder, comprising a cylinder body (1), a cylinder head (2) is fixedly connected to the top end of the cylinder body (1), characterized in that, The inside of the cylinder (1) is provided with a valve needle (3), the inside of the cylinder (1) is provided with an adjusting mechanism, the adjusting mechanism comprises: The slide body (4) is slidingly arranged in the inside of the cylinder (1); The inside of the slide body (4) is provided with an adjusting groove, the inner wall of the adjusting groove is provided with an internal thread, the valve needle adjusting block (5) is threadedly connected with the inner cavity of the adjusting groove; The adjusting block throat plug (6) is slidingly arranged in the inside of the adjusting groove, and is used for shielding the valve needle adjusting block (5); The valve needle throat plug (7) is arranged in the inside of the valve needle adjusting block (5), one end of the valve needle (3) penetrates through the valve needle adjusting block (5) and is fixedly connected with the valve needle throat plug (7), and the other end of the valve needle (3) is slidingly connected with the cylinder (1).

2. A cylinder with an adjustable valve needle according to claim 1, characterized in that The top end of the valve needle adjusting block (5) is provided with a groove, and the cross section of the groove is hexagonal.

3. A cylinder with an adjustable valve needle according to claim 1, characterized in that The outer wall of the slide body (4) is provided with an annular groove, and the inside of the annular groove is provided with a first sealing ring (8).

4. A cylinder with an adjustable valve needle according to claim 1, characterized in that The inside of the cylinder (1) is symmetrically provided with an inner circlip (9), and the inside of the cylinder (1) is symmetrically provided with a second sealing ring (10), the inner circlip (9) and the second sealing ring (10) are matched with each other.

5. A cylinder with an adjustable valve needle according to claim 1, characterized in that One side of the cylinder (1) is fixedly connected with a first gas path (11), and the other side of the cylinder (1) is fixedly connected with a second gas path (12), the first gas path (11) and the second gas path (12) are used for controlling the movement of the slide body (4) by feeding air into the inside of the cylinder (1).

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