Safety door structure of injection molding machine

By setting a guide plate on the top of the safety door of the injection molding machine and setting a lower door rail on the bottom, the existing safety door of the injection molding machine is solved and the serious impact and shaking of the space when picking up and replacing the mold, the smooth and reliable movement of the safety door is achieved, and practicality and reliability are improved.

CN223013740UActive Publication Date: 2025-06-24ZHEJIANG XUCHANGSHENG EQUIP TECH CO LTD
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Patent Information

Application Number
CN202323555225.7
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2023-12-26
Publication Date
2025-06-24
Estimated Expiration
2033-12-26

AI Technical Summary

Technical Problem

The safety doors of existing injection molding machines are affected by space when picking up parts and replacing molds, and some safety doors are severely shaking, which makes them poor in practicality and reliability.

Method used

An injection molding machine safety door structure is designed, including safety door assembly and safety door support assembly. By setting a guide plate on the top of the safety door and a lower door guide rail at the bottom of the safety door, the smooth and reliable movement of the safety door without shaking is achieved, avoiding the design needs of the upper guide rail.

Benefits of technology

The smooth and reliable movement of the safety door of the injection molding machine is achieved, avoiding shaking, and improving the convenience and safety of operation.

✦ Generated by Eureka AI based on patent content.

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    Figure CN223013740U_ABST
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Abstract

The utility model relates to an injection molding machine safety door structure which comprises a safety door assembly and a safety door supporting assembly, the safety door assembly is provided with a safety door, a door wheel shaft provided with a door wheel is arranged at the middle-lower position of the safety door, a guide plate is arranged at the top of the safety door, a door wheel positioning shaft supporting plate is arranged at the bottom of the safety door, and the door wheel positioning shaft supporting plate is connected with the guide plate. A door wheel positioning shaft provided with a first bearing is arranged on the door wheel positioning shaft supporting plate, the safety door supporting assembly is provided with a door rail supporting frame, the door rail supporting frame is provided with a door guide rail, a safety door moves on the door guide rail through a door wheel, and the bottom of the safety door enables the safety door to move reliably and safely through the action of the first bearing and a door lower guide rail. The top slides on the guide plate through the second bearing, the safety door can move stably and safely without shaking under the action of the first bearing, the second bearing and the third bearing, in addition, a guide rail on the upper portion of the safety door is omitted, a client can replace a mold and take a part conveniently, and the safety and usability of the injection molding machine are greatly improved.
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Description

Technical Field

[0001] The utility model relates to the field of plastic injection molding machines, and particularly to a safety door structure of an injection molding machine. Background Art

[0002] The safety door of an injection molding machine is an important part of the periphery of the injection molding machine. It is used by the operator when taking out parts and replacing molds. In addition, it is also to protect the personal safety of the operator. Currently, injection molding machines usually have safety doors designed.

[0003] The deficiencies of the existing safety doors of injection molding machines are as follows: Most safety doors of injection molding machines adopt an upper and lower double guide rail structure. When the injection molding machine is designed with an upper guide rail, the operator will be affected by the space when taking out parts and replacing molds. Although some injection molding machines are not designed with an upper guide rail, the safety door shakes severely, and the practicability and reliability are much worse. Summary of the Utility Model

[0004] In order to solve the deficiencies in the existing design, one of the purposes of the utility model is to provide a reliable, stable and non-shaking safety door structure of an injection molding machine, and the second purpose is to provide a safety door without an upper guide rail, which is convenient for the operator to take out parts and replace molds, and improves the practicability of the injection molding machine.

[0005] In order to achieve the above purposes, the technical solution adopted by the utility model is as follows:

[0006] A safety door structure of an injection molding machine, characterized in that: it includes a safety door assembly and a safety door support assembly. The safety door assembly includes a safety door, a guide plate, a door wheel shaft, door wheels, a door wheel positioning shaft support plate, a door wheel positioning shaft, and a first bearing; the safety door support assembly includes a safety door support frame, a door guide rail, a lower door guide rail, a door rail spacing rod, a door rail spacing plate, a door slide bearing shaft, and a second bearing.

[0007] For the safety door assembly, a door wheel shaft is installed on the safety door, and door wheels are arranged on the door wheel shaft.

[0008] For the safety door assembly, a guide plate is installed at the top of the safety door.

[0009] For the safety door assembly, a door wheel positioning shaft support plate is arranged at the bottom of the safety door. A door wheel positioning shaft is installed on the door wheel positioning shaft support plate, and a first bearing is arranged on the door wheel positioning shaft.

[0010] For the safety door support assembly, a door guide rail is installed on the safety door support frame, and a lower door guide rail is arranged at the bottom of the safety door support frame.

[0011] For the described safety door support assembly, a door rail spacing rod is installed on the safety door support frame, a door rail spacing plate is provided on the door rail spacing rod, and a door slide bearing shaft with a second bearing is installed on the door rail spacing plate.

[0012] Advantageous effects:

[0013] The present utility model provides an injection molding machine safety door structure. By providing a guide plate at the top of the safety door and a lower door rail at the bottom of the safety door, a safety door that does not require an upper rail can move smoothly, reliably, and without shaking. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 is an isometric view of the structure of the present utility model;

[0015] Figure 2 is a left view of the structure of the present utility model;

[0016] Illustration: 10. Guide plate, 11. Safety door, 12. Door wheel, 13. Door wheel shaft, 14. Door wheel positioning shaft support plate, 15. Door wheel positioning shaft, 16. First bearing, 20. Safety door support frame, 21. Lower door rail, 22. Door rail, 23. Door rail spacing rod, 24. Second bearing, 25. Door slide bearing shaft, 26. Door rail spacing plate. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0017] The following further elaborates the present utility model in conjunction with specific embodiments. It should be understood that these embodiments are only used to illustrate the present utility model and not to limit the scope of the present utility model. In addition, it should be understood that after reading the content taught by the present utility model, those skilled in the art can make various changes or modifications to the present utility model, and these equivalent forms also fall within the scope defined by the appended claims of this application.

[0018] The embodiment of the present utility model relates to an injection molding machine safety door structure. As Figure 1-2 shown, it includes a safety door assembly 1 and a safety door support assembly 2. The safety door assembly is installed on the door rail 22 of the safety door support assembly 2 through the door wheel 12, thereby realizing the repeated movement of the safety door 11.

[0019] In the above technical solution, multiple groups of first bearings 16 are installed at the bottom of the safety door 11, and the lower door rail 21 is installed in the middle of the first bearings 16 to ensure the verticality of the safety door 11. The second bearing 24 is stuck in the middle of the guide plate 10 to ensure that the safety door 11 does not shake inside and outside. With three-point positioning, the safety door 11 can move reliably, smoothly, and without shaking.

[0020] Preferably, a guide plate 10 is installed at the top of the safety door 11. When the safety door 11 moves, the second bearing 24 slides inside the guide plate 10, thereby ensuring that the safety door 11 does not shake inside and outside.

[0021] Preferably, a door wheel shaft 13 is installed in the middle and lower part of the safety door 11. The door wheel 12 is integrated with the safety door 11 by being installed on the door wheel shaft 13. The entire safety door 11 acts on the door guide rail 22 through the door wheel 12.

[0022] Preferably, a door wheel positioning shaft support plate 14 is provided at the bottom of the safety door 11. A door wheel positioning shaft 15 is provided on the door wheel positioning shaft support plate 14. A first bearing 16 is installed on the door wheel positioning shaft 15. There is a lower door guide rail 21 between each group of first bearings 16. When the safety door 11 moves, it can be ensured that the safety door will not tip over.

[0023] Preferably, a door guide rail 22 and a lower door guide rail 21 are provided on the safety door support frame 20. The two mainly play a role in supporting the safe and reliable movement of the safety door 11.

[0024] Preferably, a door rail distance fixing rod 23 is provided on the safety door support frame 20. A door rail distance fixing plate 26 is installed on the door rail distance fixing rod 23. A door slide bearing shaft 25 equipped with a second bearing 24 is provided on the door rail distance fixing plate 26. When the safety door 11 moves, the second bearing 24 always moves within the guide plate 10 to limit the swing of the safety door 11 inside and outside.

Claims

1. A safety door structure of an injection molding machine, characterized in that, It includes a safety door assembly and a safety door support assembly. The main body of the safety door assembly is the safety door. A guide plate is arranged above the safety door. Door wheels are arranged in the middle and lower part of the safety door. A first bearing is arranged at the bottom of the safety door. The main body of the safety door support assembly is the safety door support frame. The safety door support frame is provided with a door guide rail for the door wheels to slide on. A lower door guide rail that contacts the first bearing is arranged at the bottom of the safety door support frame. A second bearing that slides in the guide plate is arranged at the top of the safety door support assembly.

2. The structure of the safety door of the injection molding machine according to claim 1, characterized in that, A guide plate is installed at the top of the safety door, and the second bearing slides inside when the safety door moves.

3. The injection molding machine safety door structure according to claim 1, characterized in that, A door wheel shaft is installed in the middle and lower part of the safety door, and the door wheel is integrated with the safety door by being installed on the door wheel shaft.

4. The injection molding machine safety door structure according to claim 1, characterized in that, A door wheel positioning shaft support plate is arranged at the bottom of the safety door. A door wheel positioning support shaft is arranged on the door wheel positioning shaft support plate, and a first bearing is installed on the door wheel positioning support shaft.

5. The injection molding machine safety door structure according to claim 1, characterized in that, A door rail spacing rod is arranged on the safety door support frame. A door rail spacing plate is arranged on the door rail spacing rod, and a door slide bearing shaft for installing the second bearing is arranged on the door rail spacing plate.

6. The injection molding machine safety door structure according to claim 5, wherein A second bearing is arranged on the door slide bearing shaft, and the second bearing slides in the guide plate when the safety door moves.