Injection molding apparatus hydraulic cylinder

By using an easy-to-install hydraulic cylinder for injection molding equipment, combined with mounting components and an electric push rod, the hydraulic cylinder can be quickly installed and automatically ejected, solving the problems of complex installation and manual material ejection in existing technologies. This improves production efficiency and mold life, and reduces scrap rate.

CN224489828UActive Publication Date: 2026-07-14WUXI PUYA MASCH MFG CO LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
WUXI PUYA MASCH MFG CO LTD
Filing Date
2025-08-11
Publication Date
2026-07-14

AI Technical Summary

Technical Problem

The existing injection molding equipment has a complex hydraulic cylinder installation, which increases the time for installation, maintenance and replacement, affecting work efficiency. In addition, the molded material needs to be manually ejected, which may burn the workers and shorten the mold life, affecting product quality.

Method used

A hydraulic cylinder for injection molding equipment that is easy to install was designed. By combining the mounting components and the electric push rod, the hydraulic cylinder can be quickly installed and disassembled, and the molded material can be automatically ejected by the electric push rod, reducing manual operation.

Benefits of technology

It simplifies the installation process of hydraulic cylinders, improves production efficiency, extends mold life, reduces scrap rate and mold damage risk, and ensures product quality.

✦ Generated by Eureka AI based on patent content.

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  • Figure CN224489828U_ABST
    Figure CN224489828U_ABST
Patent Text Reader

Abstract

The utility model discloses an injection molding equipment hydraulic cylinder convenient to installation belongs to injection molding hydraulic cylinder technical field, it includes: the fixed frame, the fixed plate is fixedly installed to one side of fixed frame is close to each other, the inside of fixed plate is equipped with the placing groove, the inside of placing groove is provided with installation component, installation component includes: the pull plate, the bottom fixed mounting of pull plate has two groups of slide frame, the inside of two groups slide frame all has the short shaft of sliding butt joint, this simple structure is convenient to operate, can fast installation and disassembly to hydraulic cylinder fast, can reduce the time required for installation, maintenance and replacement, has improved the work efficiency on production line, to reduce the wear and tear and damage to mould, prolong the service life of mould, reduce the frequency and cost of replacement mould, and if the material after forming can not promptly eject, easy to cause product deformation or unqualified quality, and injection molding equipment hydraulic cylinder can effectively guarantee product quality, reduce the scrap rate.
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Description

Technical Field

[0001] This utility model relates to the field of injection molding hydraulic cylinder technology, and in particular to an injection molding equipment hydraulic cylinder that is easy to install. Background Technology

[0002] A hydraulic cylinder is a hydraulic actuator that converts hydraulic energy into mechanical energy and performs linear reciprocating motion. It has a simple structure and reliable operation. When used to achieve reciprocating motion, it eliminates the need for a speed reduction device and has no transmission backlash, resulting in smooth movement. Therefore, it is widely used in the hydraulic systems of various machines. The output force of a hydraulic cylinder is directly proportional to the effective area of ​​the piston and the pressure difference between its two sides. A hydraulic cylinder basically consists of a cylinder barrel and cylinder head, a piston and piston rod, a sealing device, a buffer device, and a venting device. The buffer and venting devices are optional depending on the specific application. The other devices are essential. However, the installation of existing hydraulic cylinders in injection molding equipment is relatively complex, increasing the time required for installation, maintenance, and replacement, thus affecting work efficiency. Furthermore, it cannot eject and collect the extruded material inside the mold, requiring manual handling, which may burn workers and increase mold wear and damage, shortening the mold's lifespan. If the molded material cannot be ejected in time, it can easily lead to product deformation or substandard quality. Therefore, we propose an easy-to-install hydraulic cylinder for injection molding equipment to solve this problem. Utility Model Content

[0003] The purpose of this invention is to provide a hydraulic cylinder for injection molding equipment that is easy to install, so as to solve the problems mentioned in the background art.

[0004] To achieve the above objectives, the present invention adopts the following technical solution:

[0005] A hydraulic cylinder for easy installation in injection molding equipment includes: a fixed frame, a fixed plate fixedly installed on one side of the fixed frame that is close to each other, a placement groove opened inside the fixed plate, an installation assembly disposed inside the placement groove, and an installation assembly including: a pull plate, two sets of sliding frames fixedly installed at the bottom of the pull plate, short shafts slidably abutting inside the two sets of sliding frames, fixed rods fixedly installed at both ends of the two sets of short shafts, insert blocks fixedly installed at the bottom of the two sets of fixed rods located on the same side, two sets of installation blocks movably inserted inside the fixed plate, the two sets of insert blocks movably inserted into the corresponding installation blocks, a connecting plate fixedly installed at the bottom of the two sets of installation blocks, a hydraulic cylinder fixedly installed at the bottom of the connecting plate, a connecting member fixedly installed at the output end of the hydraulic cylinder, a connecting rod disposed inside the connecting member, a set of fastening bolts disposed inside the connecting rod and the connecting member, a nut threadedly connected to the outer side of the fastening bolt, the nut abutting against one side of the connecting member, an injection molding pressure plate fixedly installed at the bottom of the connecting rod, and a mold disposed at the bottom of the injection molding pressure plate.

[0006] Preferably, a spring is provided inside the placement groove, and the two ends of the spring are fixedly connected to the pull plate and the inner wall of one side of the placement groove, respectively. A pull ring is fixedly installed on the top of the pull plate.

[0007] Preferably, an electric push rod is fixedly installed on the top of one side of the fixed frame, and a push plate is fixedly installed on the top of the electric push rod. An injection groove is opened inside the mold, and the push plate is slidably installed inside the mold. The top of the push plate is in contact with the bottom inner wall of the injection groove.

[0008] Preferably, sliding grooves are provided on both sides of the placement groove, and sliders are slidably installed inside both sets of sliding grooves, and both sets of sliders are fixedly connected to the pull plate.

[0009] Preferably, a telescopic cylinder is fixedly installed at the bottom of the fixed plate, and the bottom end of the telescopic cylinder is fixedly connected to the injection molding plate.

[0010] Preferably, the two sides of the mold are fixedly connected to the inner walls of the two sides of the fixing frame, and the same set of injection pipes are fixedly installed inside the mold and the fixing frame, with one end of the injection pipes fitting against one side of the injection groove.

[0011] This utility model describes an easy-to-install hydraulic cylinder for injection molding equipment. It includes an installation assembly, a placement groove, an installation block, fastening bolts, nuts, a fixing plate, and a connecting plate. Pulling the pull ring causes the pull ring to move the pull plate and the sliders on both sides of the pull plate up and down within the groove. This causes the pull plate to move the two sets of sliding frames at the bottom up and down, allowing the two sets of short shafts to slide within their corresponding frames. The fixing rods on both sides of the two sets of short shafts then move the bottom inserts closer together. Under the reset action of the pull ring, the pull plate moves the two sets of sliding frames at the bottom downwards to reset, allowing the two sets of short shafts to slide within their corresponding frames. This causes the two sets of inserts to move away from each other, allowing them to be movably inserted into the corresponding installation blocks. This enables rapid installation and fixation of the hydraulic cylinder. This structure is simple and easy to operate, allowing for quick installation and disassembly of the hydraulic cylinder. It reduces the time required for installation, maintenance, and replacement, improves work efficiency on the production line, and makes the equipment more flexible, facilitating rapid replacement and adjustment according to production needs.

[0012] In this invention, an easy-to-install hydraulic cylinder for injection molding equipment is provided with an electric push rod and a push plate. By driving the electric push rod, the top push plate pushes the extruded material out of the injection molding tank. By effectively ejecting the molded material, wear and damage to the mold can be reduced, the mold's service life can be extended, and the frequency and cost of mold replacement can be reduced. Furthermore, if the molded material cannot be ejected in time, it can easily lead to product deformation or substandard quality. The hydraulic cylinder for injection molding equipment can effectively ensure product quality and reduce the scrap rate. Attached Figure Description

[0013] Figure 1 A three-dimensional structural diagram of a hydraulic cylinder for an injection molding equipment that is easy to install, as proposed in this utility model;

[0014] Figure 2 This is a partial cross-sectional view of a hydraulic cylinder for an injection molding machine that is easy to install, as proposed in this utility model.

[0015] Figure 3 for Figure 2 A magnified view of part A in the middle;

[0016] Figure 4 for Figure 2 A magnified view of part B in the middle section.

[0017] In the diagram: 1. Fixing frame; 2. Fixing plate; 3. Mounting assembly; 301. Pull ring; 302. Pull plate; 303. Slide groove; 304. Slider; 305. Slide frame; 306. Short shaft; 307. Fixing rod; 308. Insert block; 309. Spring; 4. Hydraulic cylinder; 5. Telescopic cylinder; 6. Connecting part; 7. Fastening bolt; 8. Nut; 9. Connecting rod; 10. Injection plate; 11. Mold; 12. Electric push rod; 13. Push plate; 14. Injection pipe; 15. Connecting plate; 16. Mounting block. Detailed Implementation

[0018] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0019] Reference Figure 1-4A hydraulic cylinder for easy installation of injection molding equipment includes: a fixed frame 1, a fixed plate 2 fixedly installed on one side of the fixed frame 1, a placement groove opened inside the fixed plate 2, and an installation component 3 disposed inside the placement groove, the installation component 3 including: a pull plate 302, two sets of sliding frames 305 fixedly installed at the bottom of the pull plate 302, short shafts 306 slidably abutting inside the two sets of sliding frames 305, fixed rods 307 fixedly installed at both ends of the two sets of short shafts 306, and insert blocks 308 fixedly installed at the bottom of the two sets of fixed rods 307 located on the same side, and two sets of... Mounting block 16, two sets of insert blocks 308 are respectively movably inserted into the corresponding mounting block 16. A connecting plate 15 is fixedly installed at the bottom of the two sets of mounting blocks 16. A hydraulic cylinder 4 is fixedly installed at the bottom of the connecting plate 15. A connector 6 is fixedly installed at the output end of the hydraulic cylinder 4. A connecting rod 9 is provided inside the connector 6. The same set of fastening bolts 7 are provided inside the connecting rod 9 and the connector 6. A nut 8 is threaded on the outside of the fastening bolt 7. The nut 8 abuts against one side of the connector 6. An injection molding plate 10 is fixedly installed at the bottom of the connecting rod 9. A mold 11 is provided at the bottom of the injection molding plate 10.

[0020] Preferably, a spring 309 is provided inside the placement groove. The two ends of the spring 309 are fixedly connected to the pull plate 302 and the inner wall of one side of the placement groove, respectively. A pull ring 301 is fixedly installed on the top of the pull plate 302 to facilitate the reset of the pull plate 302 and to facilitate the two sets of insert blocks 308 to be movably inserted into the interior of the corresponding mounting block 16. An electric push rod 12 is fixedly installed on the top of one side of the fixing frame 1. A push plate 13 is fixedly installed on the top of the electric push rod 12. An injection groove is opened inside the mold 11. The push plate 13 is slidably installed inside the mold 11. The top of the push plate 13 is in contact with the bottom inner wall of the injection groove to facilitate the ejection and collection of the molded material inside the injection groove.

[0021] Preferably, sliding grooves 303 are provided on both sides of the placement groove, and sliders 304 are slidably installed inside both sets of sliding grooves 303. Both sets of sliders 304 are fixedly connected to the pull plate 302, which facilitates the movement of the pull plate 302 and prevents the pull plate 302 from leaving the interior of the placement groove. Telescopic cylinders 5 are fixedly installed at the bottom of the fixing plate 2. The bottom ends of the telescopic cylinders 5 are fixedly connected to the injection pressure plate 10, which facilitates the stable movement of the injection pressure plate 10. The two sides of the mold 11 are fixedly connected to the inner walls of the two sides of the fixing frame 1, respectively. The same set of injection pipes 14 are fixedly installed inside the mold 11 and the fixing frame 1. One end of the injection pipe 14 is attached to one side of the injection groove, which facilitates the injection of materials into the interior of the mold 11.

[0022] In this embodiment, during use, pulling the pull ring 301 causes the pull ring 301 to drive the pull plate 302 and the sliders 304 on both sides of the pull plate 302 to slide up and down inside the slide groove 303. This causes the pull plate 302 to drive the two sets of sliding frames 305 at the bottom to move up and down, causing the two sets of short shafts 306 to slide inside the corresponding sliding frames 305. This causes the fixing rods 307 on both sides of the two sets of short shafts 306 to drive the bottom inserts 308 to move closer to each other. At this time, by movably inserting the two sets of mounting blocks 16 at the top of the hydraulic cylinder 4 into the interior of the fixing plate 2, and then releasing the pull ring 301, the pull plate 302 is driven by the resetting action of the pull ring 301 to move the two sets of sliding frames 305 at the bottom downwards to reset, causing the two sets of short shafts 306 to slide inside the corresponding sliding frames 305. The internal sliding of the two sets of insert blocks 308 causes them to move away from each other, allowing them to be inserted into the interior of the opposite mounting block 16. This enables the hydraulic cylinder 4 to be quickly installed and fixed. By tightening the bolts 7 and nuts 8, the connecting piece 6 at the bottom of the hydraulic cylinder 4 is fixedly connected to the connecting rod 9, allowing the hydraulic cylinder 4 to drive the bottom injection plate 10 to move up and down. At this time, material is injected into the mold 11 through the injection pipe 14. The movement of the hydraulic cylinder 4 allows the material in the mold 11 to be extruded and shaped. Finally, by driving the electric push rod 12, the electric push rod 12 drives the top push plate 13 to push the extruded material out of the injection mold, facilitating the rapid collection of the shaped material.

[0023] The present invention provides a detailed description of an easy-to-install hydraulic cylinder for injection molding equipment. Specific embodiments have been used to illustrate the principles and implementation methods of the present invention. These embodiments are merely illustrative and are intended to aid in understanding the method and core concepts of the present invention. It should be noted that those skilled in the art can make various improvements and modifications to the present invention without departing from its principles, and these improvements and modifications also fall within the scope of protection of the claims of the present invention.

Claims

1. A hydraulic cylinder for injection molding equipment that is easy to install, characterized in that, include: A fixed frame (1) is provided, and a fixed plate (2) is fixedly installed on one side of the fixed frame (1) that is close to each other. The fixed plate (2) has a placement groove inside, and an installation component (3) is provided inside the placement groove. The installation component (3) includes: a pull plate (302), and two sets of sliding frames (305) are fixedly installed at the bottom of the pull plate (302). Short shafts (306) are slidably abutted inside the two sets of sliding frames (305). Fixed rods (307) are fixedly installed at both ends of the two sets of short shafts (306). Insert blocks (308) are fixedly installed at the bottom of the two sets of fixed rods (307) located on the same side. Two sets of installation blocks (16) are movably inserted into the inside of the fixed plate (2). 8) They are respectively movably inserted into the interior of the corresponding mounting blocks (16). The bottom of the two sets of mounting blocks (16) is fixedly installed with connecting plates (15). The bottom of the connecting plates (15) is fixedly installed with hydraulic cylinders (4). The output end of the hydraulic cylinders (4) is fixedly installed with connectors (6). The interior of the connectors (6) is provided with connecting rods (9). The interior of the connecting rods (9) and the connectors (6) is provided with the same set of fastening bolts (7). The outer side of the fastening bolts (7) is threaded with nuts (8). The nuts (8) abut against one side of the connectors (6). The bottom of the connecting rods (9) is fixedly installed with injection molding plates (10). The bottom of the injection molding plates (10) is provided with molds (11).

2. The hydraulic cylinder for easy installation of injection molding equipment according to claim 1, characterized in that, A spring (309) is provided inside the placement groove. The two ends of the spring (309) are fixedly connected to the pull plate (302) and the inner wall of one side of the placement groove, respectively. A pull ring (301) is fixedly installed on the top of the pull plate (302).

3. The hydraulic cylinder for easy installation of injection molding equipment according to claim 1, characterized in that, An electric push rod (12) is fixedly installed on the top of one side of the fixed frame (1), and a push plate (13) is fixedly installed on the top of the electric push rod (12). An injection groove is opened inside the mold (11), and the push plate (13) is slidably installed inside the mold (11). The top of the push plate (13) is in contact with the bottom inner wall of the injection groove.

4. A hydraulic cylinder for injection molding equipment that is easy to install according to claim 1, characterized in that, The placement groove is provided with sliding grooves (303) on both sides, and sliders (304) are slidably installed inside the two sets of sliding grooves (303). The two sets of sliders (304) are fixedly connected to the pull plate (302).

5. A hydraulic cylinder for injection molding equipment that is easy to install according to claim 1, characterized in that, The bottom of the fixed plate (2) is fixedly installed with a telescopic cylinder (5), and the bottom end of the telescopic cylinder (5) is fixedly connected to the injection molding plate (10).

6. A hydraulic cylinder for injection molding equipment that is easy to install according to claim 1, characterized in that, The mold (11) is fixedly connected to the inner walls of the two sides of the fixing frame (1) on both sides respectively. The same set of injection pipes (14) are fixedly installed inside the mold (11) and the fixing frame (1). One end of the injection pipe (14) is attached to one side of the injection groove.