Multi-valve-needle air cylinder

Abstract

The utility model discloses a multi-valve-needle air cylinder, which relates to the technical field of air cylinders and comprises a cylinder body, and an air cylinder cover is arranged at the top end of the cylinder body. The first sliding body is arranged in the cylinder body in a sliding manner; the second sliding bodies are fixedly connected to the bottom end of the first sliding body at equal intervals, grooves are formed in the bottom end of the inner wall of the cylinder body at equal intervals, the grooves are annularly arranged, and the second sliding bodies are connected with inner cavities of the grooves; and the valve needle is arranged in the second sliding body. By means of the arrangement mode that the first sliding body, the second sliding body and the valve needles are matched, the multiple valve needles are fixed to the same first sliding body at equal intervals, efficient space utilization is achieved, it is ensured that all the valve needles can keep synchronous movement during working, deviation and jamming are avoided, the problem of interference caused by the fact that more air cylinders are used is solved, and the service life of the air cylinders is prolonged. And meanwhile, the problem of different glue discharge amounts of the three hot nozzles is solved, so that not only is the production efficiency improved, but also the quality and the stability of products are improved.

Description

Technical Field

[0001] This utility model relates to the field of cylinder-related technology, and in particular to a multi-valve needle cylinder. Background Technology

[0002] The mold contains cylinders and valve needles, which play a crucial role in its operation. The cylinders, as the power source, provide a strong driving force for the valve needles through the propulsion of compressed air. The valve needles, in turn, are responsible for precisely controlling the flow of material within the mold or other critical operations.

[0003] In the past, the conventional configuration of cylinders was one cylinder with one valve needle. However, when the hot nozzles were close together, the cylinders themselves occupied a large space. With one cylinder per hot nozzle, interference between cylinders was likely to occur, making it impossible to arrange the cylinders properly. This brought certain difficulties and limitations to the cylinder layout and system design. Utility Model Content

[0004] The purpose of this invention is to provide a multi-valve needle cylinder to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a multi-valve needle cylinder, comprising:

[0006] A cylinder block, wherein a cylinder head is provided at the top of the cylinder block;

[0007] The first sliding body is slidably disposed inside the cylinder body;

[0008] The second sliding body is fixedly connected to the bottom end of the first sliding body at equal intervals. The bottom end of the inner wall of the cylinder is provided with grooves at equal intervals. The grooves are arranged in a ring. The second sliding body is slidably inserted into the inner cavity of the groove.

[0009] A valve needle is disposed inside the second slide body.

[0010] Preferably, the bottom end of the cylinder is provided with first mounting holes at equal intervals, and the inner cavity of the first mounting holes is slidably connected with a first bolt, which is used to install and fix the cylinder.

[0011] Preferably, the top end of the first sliding body is provided with second mounting holes at equal intervals, the inner cavity of the second mounting hole is provided with a sealing body, and the inner cavity of the sealing body is slidably connected with a second bolt, which is threadedly connected to the valve needle.

[0012] Preferably, the outer wall of the first sliding body is provided with an annular groove, and a first sealing ring is provided inside the annular groove.

[0013] Preferably, an inner retaining spring is provided inside the groove of the cylinder body, and a second sealing ring is provided inside the groove, with the inner retaining spring and the second sealing ring cooperating with each other.

[0014] The technical effects and advantages of this utility model are as follows:

[0015] This invention utilizes a combination of a first sliding body, a second sliding body, and valve needles to fix multiple valve needles equidistantly on the same first sliding body, achieving efficient space utilization. This allows the equipment to accommodate more valve needles within a limited space, greatly improving its integration and providing a wider operating space for complex processes. Simultaneously, it ensures that each valve needle moves synchronously during operation, avoiding deviations and jamming. Preventing deviations and jamming is crucial for the stability of the production process. Synchronous movement ensures consistency in the operation of each valve needle, preventing abnormalities in individual valve needles from affecting the entire production system, reducing the risk of product quality fluctuations, and making the produced products more stable and reliable in performance and specifications. It also reduces interference caused by excessive cylinder use and solves the problem of different glue output from the three hot nozzles. This not only improves production efficiency but also enhances product quality and stability. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the overall front internal structure of this utility model.

[0017] Figure 2 This is a schematic diagram of the overall structure of this utility model from a bottom view.

[0018] In the diagram: 1. Cylinder block; 2. Cylinder head; 3. First sliding body; 4. Second sliding body; 5. Valve needle; 6. First bolt; 7. Sealing body; 8. Second bolt; 9. First sealing ring; 10. Inner snap ring; 11. Second sealing ring. Detailed Implementation

[0019] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0020] Example 1

[0021] This utility model provides, for example Figure 1 The multi-valve needle cylinder shown includes a cylinder body 1, and a cylinder head 2 is provided at the top of the cylinder body 1.

[0022] The first sliding body 3 is slidably disposed inside the cylinder body 1;

[0023] The second sliding body 4 is fixedly connected to the bottom end of the first sliding body 3 at equal intervals. The bottom end of the inner wall of the cylinder 1 is provided with grooves at equal intervals, and the grooves are arranged in a ring. The second sliding body 4 is slidably inserted into the inner cavity of the groove.

[0024] The valve needle 5 is located inside the second sliding body 4. There can be three second sliding bodies 4 arranged in a ring, allowing multiple valve needles 5 to be equidistantly fixed on the same first sliding body 3. This achieves efficient space utilization, enabling the equipment to accommodate more valve needles 5 within a limited space, greatly improving its integration and providing a wider operating space for complex processes. Ensuring that each valve needle 5 maintains synchronized movement during operation, avoiding deviations and jamming, is crucial for the stability of the production process. Synchronous motion ensures the consistency of each valve needle 5 during operation, preventing the entire production system from being affected by the abnormality of individual valve needles 5. This reduces the risk of product quality fluctuations, resulting in more stable and reliable products in terms of performance and specifications. It also reduces interference caused by the excessive use of cylinders, directly lowering the complexity and cost of the equipment. Fewer cylinders mean fewer parts and a simpler mechanical structure, facilitating installation, debugging, and maintenance, reducing the probability of equipment failure, and improving reliability and lifespan. Furthermore, it solves the problem of different glue output from the three hot nozzles, providing strong support for the production of diverse products. Different hot nozzle glue outputs can meet the production needs of different products, enabling the equipment to adapt to a wider range of production scenarios and improving its versatility and flexibility. This not only enhances product quality and stability but also brings greater economic benefits and market competitiveness to the company's production operations.

[0025] Example 2

[0026] Based on Example 1, such as Figure 2 As shown, the bottom end of the cylinder body 1 has equidistant first mounting holes. First bolts 6 are slidably inserted into the inner cavity of these first mounting holes. The first bolts 6 are used to mount and fix the cylinder body 1. The first bolts 6 are M6 bolts, a common and universal specification, and various compatible nuts and other connecting parts are readily available on the market, facilitating the selection of appropriate accessories during maintenance and component replacement. The equidistant first mounting holes ensure regularity and consistency in installation, allowing for quick and accurate positioning and fixing of the cylinder body 1 to other structures or equipment, improving installation efficiency and reducing installation time and labor costs. Furthermore, this equidistant design ensures more even stress distribution on the cylinder body 1 after installation, preventing deformation or damage caused by excessive localized stress, thus contributing to improved stability and reliability of the entire system.

[0027] Furthermore, the top of the first sliding body 3 is provided with second mounting holes at equal intervals. The inner cavity of the second mounting hole is provided with a sealing body 7. The inner cavity of the sealing body 7 is slidably connected with a second bolt 8. The second bolt 8 is threadedly connected to the valve needle 5. The sealing body 7 can effectively prevent gas or liquid from leaking from the mounting part during the operation of the valve needle 5, ensuring the sealing of the system, avoiding the impact of leakage on the normal operation and working efficiency of the equipment, and improving the stability and reliability of the system. The specification of the second bolt 8 is M4. The second bolt 8 is threadedly connected to the valve needle 5, which makes it convenient to fix or loosen the valve needle by tightening or loosening the second bolt when it is necessary to adjust the position of the valve needle or perform maintenance. The operation is simple and can accurately control the position and state of the valve needle, providing convenience for the flexible adjustment and optimization of the equipment.

[0028] Furthermore, an annular groove is formed on the outer wall of the first sliding body 3, and a first sealing ring 9 is set inside the annular groove. The first sealing ring 9 is embedded in the annular groove, which can form a good sealing effect, effectively preventing gas from leaking from the gap between the first sliding body 3 and the inner wall of the cylinder body 1, ensuring the stability and sealing of the internal air pressure of the cylinder, improving the working efficiency and performance of the cylinder, and the annular groove can also play a certain role in oil storage, allowing lubricating oil to remain in the annular groove. During the movement of the first sliding body 3, the lubricating oil can continuously lubricate the contact surface between the first sliding body 3 and the inner wall of the cylinder body 1, reducing frictional resistance, reducing wear, extending the service life of the cylinder body 1 and the first sliding body 3, and ensuring the long-term stable operation of the cylinder.

[0029] Furthermore, an inner retaining spring 10 is provided inside the groove of the cylinder body 1, and a second sealing ring 11 is provided inside the groove. The inner retaining spring 10 and the second sealing ring 11 cooperate with each other. The inner retaining spring 10 can play a fixing and positioning role, firmly fixing the second sealing ring 11 in a specific position inside the cylinder body 1, ensuring the tight fit between the second sealing ring 11 and the inside of the cylinder body 1, effectively preventing gas or liquid leakage inside the cylinder body 1, improving sealing performance, ensuring the normal operation and working efficiency of the system, and the cooperation between the inner retaining spring 10 and the second sealing ring 11 makes the entire sealing structure more stable, able to withstand certain pressure and impact, reducing the sealing failure caused by vibration or external force, enhancing the stability and reliability of the cylinder body 1 structure, and helping to extend the service life of the cylinder body 1 and related components.

[0030] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A multi-valve needle cylinder, characterized in that, include: Cylinder body (1), the top of which is provided with cylinder head (2); The first sliding body (3) is slidably disposed inside the cylinder body (1); The second sliding body (4) is fixedly connected to the bottom end of the first sliding body (3) at equal intervals. The bottom end of the inner wall of the cylinder (1) is provided with grooves at equal intervals. The grooves are arranged in a ring. The second sliding body (4) is slidably inserted into the inner cavity of the groove. Valve needle (5) is disposed inside the second slide body (4).

2. A multi-valve needle cylinder according to claim 1, characterized in that, The bottom end of the cylinder (1) is provided with first mounting holes at equal intervals. The inner cavity of the first mounting hole is slidably connected with a first bolt (6). The first bolt (6) is used to install and fix the cylinder (1).

3. A multi-valve needle cylinder according to claim 1, characterized in that, The top end of the first sliding body (3) is provided with second mounting holes at equal intervals. The inner cavity of the second mounting hole is provided with a sealing body (7). The inner cavity of the sealing body (7) is slidably connected with a second bolt (8). The second bolt (8) is threadedly connected to the valve needle (5).

4. A multi-valve needle cylinder according to claim 1, characterized in that, The outer wall of the first sliding body (3) is provided with an annular groove, and a first sealing ring (9) is provided inside the annular groove.

5. A multi-valve needle cylinder according to claim 1, characterized in that, An inner retaining spring (10) is provided inside the groove of the cylinder body (1), and a second sealing ring (11) is provided inside the groove. The inner retaining spring (10) and the second sealing ring (11) cooperate with each other.

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