Jacket type oil injector of internal mixer

By introducing a jacketed structure and water-passing design into the oil injector of the internal mixer, the problem of viscosity increase of process oil at low temperature is solved, ensuring constant temperature of the oil injector and improving the uniformity and quality stability of the mixed materials.

CN223904268UActive Publication Date: 2026-02-13YIYANG RUBBER PLASTICS MACHINERY GROUP
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Patent Information

Application Number
CN202520331894.6
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-02-28
Publication Date
2026-02-13
Estimated Expiration
2035-02-28

AI Technical Summary

Technical Problem

The integral structure of the existing internal mixer oil injector causes the viscosity of the process oil to increase at low temperatures, resulting in a slower injection speed and affecting the uniformity and quality stability of the mixed materials.

Method used

A jacketed oil injector for a mixer was designed. A water-passing cavity is formed by sleeved outer shell on the outer surface of the flange shaft. Water inlet and drain holes are provided on the outer shell. Cooling water is used to keep the flange shaft temperature constant and ensure the flow performance of the process oil.

Benefits of technology

This achieved the heat preservation effect of the process oil, maintained stable viscosity, and improved the uniformity and quality stability of the mixed materials.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to the technical field of oil injectors, in particular to an internal mixer jacket type oil injector which comprises a flange shaft, the outer surface of the flange shaft is sleeved with an outer shell, a water passing containing cavity is formed between the outer shell and the outer surface of the flange shaft, and an oil injection pipe communicated with the interior of the flange shaft is arranged on the outer shell. The outer shell is provided with a water inlet hole communicated with the water passing containing cavity. The outer shell is provided with a drainage hole communicated with the water through containing cavity; therefore, when the internal mixer mixes a rubber material, softened water enters from the water inlet hole of the outer shell and is discharged from the water discharge hole; the water inlet hole and the water outlet hole enable the temperature of the flange shaft to be kept constant through flowing in the flange shaft jacket.
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Description

TECHNICAL FIELD

[0001] The utility model relates to oil injection technology field, specifically is a kind of banburying machine jacketed oil injector. BACKGROUND

[0002] When banburying machine mixes rubber material, liquid process oil is injected into the cavity of shell from the oil injection hole of oil injector, then the oil pressure is used to push the piston rod to open, and finally the hydraulic process oil enters the mixing chamber of banburying machine to mix.

[0003] The existing oil injector shell is of integral structure, and the inside is not water-penetrable and heat-insulating. Since the process oil has the characteristic of viscosity rising at low temperature, the process oil will have the characteristics of temperature reduction, viscosity rising and speed slowing down when passing through the oil injector. This phenomenon makes the process oil unable to be injected into the mixing chamber within the specified time for mixing, and finally the mixed material is unevenly dispersed, and the quality of the mixed material of the same batch is unstable. UTILITY MODEL CONTENTS

[0004] The utility model solves the technical problem to provide a banburying machine jacketed oil injector with water-penetrable and heat-insulating function for oil.

[0005] The utility model solves the technical problem by the following technical scheme:

[0006] A banburying machine jacketed oil injector includes a flange shaft, an outer shell is sleeved on the outer surface of the flange shaft, a water-penetrable cavity is formed between the outer shell and the outer surface of the flange shaft, an oil injection pipe is formed in the outer shell and communicates with the inside of the flange shaft, and a water inlet hole is formed in the outer shell and communicates with the water-penetrable cavity.

[0007] In one embodiment, a water outlet hole is formed in the outer shell and communicates with the water-penetrable cavity.

[0008] In one embodiment, the left end of the outer shell is sealingly connected to the flange shaft by a left circular plate.

[0009] In one embodiment, the right end of the outer shell is sealingly connected to the flange shaft by a right circular plate.

[0010] In one embodiment, a connecting block connecting the flange shaft and the outer shell is arranged in the water-penetrable cavity.

[0011] In one embodiment, a transverse through hole is formed in the middle of the connecting block.

[0012] In one embodiment, a piston rod is arranged in the flange shaft, and a thread sleeve, a shaft sleeve and a gasket are arranged at one end of the piston rod.

[0013] In one embodiment, a spring is fitted onto the bushing.

[0014] In one embodiment, the upper and lower ends of the bushing are connected to a threaded sleeve and a washer, respectively.

[0015] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0016] This invention utilizes a flange shaft with an outer casing fitted over its outer surface. A water-passing cavity is formed between the outer casing and the outer surface of the flange shaft. The outer casing has an oil injection pipe communicating with the interior of the flange shaft, a water inlet hole communicating with the water-passing cavity, and a drain hole communicating with the water-passing cavity. Thus, during the mixing of rubber materials in the internal mixer, softened water enters through the water inlet hole and exits through the drain hole. The flow of water through the water inlet and drain hole within the flange shaft jacket maintains a constant temperature for the flange shaft.

[0017] 2. This utility model has a water-insulating function for the oil; the viscosity of the oil will not decrease when it passes through the oil injector of this application, thus ensuring the flow performance of the oil; ultimately improving the uniformity and quality stability of the mixed materials in the internal mixer. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the overall structure of Embodiment 1 of the present invention;

[0019] Figure 2 This utility model Figure 1 A schematic diagram of the structure connecting the mixing chamber wall of the internal mixer.

[0020] In the diagram: 1. Flange block, 2. Outer shell, 3. Piston rod, 4. Threaded sleeve, 5. Spring, 6. Bushing, 7. Gasket, 10. Flange shaft, 11. Water passage cavity, 12. Oil injection hole, 13. Water inlet hole, 14. Drain hole, 15. Left circular plate, 16. Right circular plate, 17. Connecting block, 18. Transverse through hole. Detailed Implementation

[0021] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0022] Example 1

[0023] like Figures 1-2 As shown, this embodiment includes a flange shaft 10. In this embodiment, a flange block 1 is provided at the lower part of the flange shaft 10. The flange shaft 10 is connected to the mixing chamber through the flange block 1 and fixed with screws.

[0024] The outer surface of the flange shaft 10 is sleeved with an outer shell 2, and a water passing cavity 11 is formed between the outer shell 2 and the outer surface of the flange shaft 10; in the embodiment, the left end of the outer shell 2 is sealingly connected with the flange shaft 10 through a left circular plate 15; the right end of the outer shell 2 is sealingly connected with the flange shaft 10 through a right circular plate 16; thus, the outer shell 2 forms the water passing cavity 11 through the left circular plate 15 and the right circular plate 16 and between the outer shell 2 and the flange shaft 10.

[0025] The water passing cavity 11 is provided with a connecting block 17 connecting the flange shaft 10 and the outer shell 2; through the arrangement of the connecting block 17, the connection between the flange shaft 10 and the outer shell 2 can be strengthened; in the embodiment, a transverse through hole 18 is formed in the middle of the connecting block 17.

[0026] The flange shaft 10 is provided with a piston rod 3, one end of the piston rod 3 is provided with a thread sleeve 4, a shaft sleeve 6 and a gasket 7; the shaft sleeve 6 is sleeved with a spring 5; the upper and lower ends of the shaft sleeve 6 are connected with the thread sleeve 4 and the gasket 7 respectively.

[0027] The outer shell 2 is provided with an oil injection pipe 12 communicating with the inside of the flange shaft 10; thus, the liquid process oil is injected into the inner cavity of the flange shaft 10 from the oil injection pipe 12, then the piston rod 3 is pushed to open by the oil pressure, and finally the hydraulic process oil enters the mixing chamber of the internal mixer for mixing.

[0028] The outer shell 2 is provided with a water inlet hole 13 communicating with the water passing cavity 11; the outer shell 2 is provided with a water outlet hole 14 communicating with the water passing cavity 11; thus, when the internal mixer mixes rubber materials, softened water enters from the water inlet hole 13 of the outer shell 2 and is discharged from the water outlet hole 14; the flow of the water inlet hole 13 and the water outlet hole 14 in the outer shell 2 keeps the temperature of the flange shaft 10 constant. In the embodiment, the water inlet and outlet requirements are both softened water.

[0029] In the embodiment, a process oil injection channel is formed in the middle of the flange shaft 10, and cooling water is introduced between the flange shaft 10 and the outer shell 2 to keep the outer part of the flange shaft 10 warm, so as to finally keep the process oil injected during the mixing of the rubber warm.

[0030] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present application, but not to limit them; although the technical solutions of the present application have been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that they can still modify the technical solutions recorded in the foregoing embodiments, or equivalently replace some of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the spirit and scope of the technical solutions of the embodiments of the present application.

Claims

1. A jacketed oil injector for an internal mixer, characterized in that: Includes a flange shaft (10), the outer surface of which is fitted with an outer shell (2), a water-passing cavity (11) is formed between the outer shell (2) and the outer surface of the flange shaft (10), an oil injection pipe (12) communicating with the inside of the flange shaft (10) is provided on the outer shell (2), and a water inlet hole (13) communicating with the water-passing cavity (11) is provided on the outer shell (2).

2. The internal mixer jacketed oil injector according to claim 1, characterized in that: The outer shell (2) has a drain hole (14) that communicates with the water-passing cavity (11).

3. The internal mixer jacketed oil injector according to claim 2, characterized in that: The left end of the outer casing (2) is sealed to the flange shaft (10) by a left circular plate (15).

4. The internal mixer jacketed oil injector according to claim 3, characterized in that: The right end of the outer casing (2) is sealed to the flange shaft (10) by a right circular plate (16).

5. The internal mixer jacketed oil injector according to claim 4, characterized in that: The water-passing cavity (11) is provided with a connecting block (17) that connects the flange shaft (10) and the outer shell (2).

6. The internal mixer jacketed oil injector according to claim 5, characterized in that: A transverse through hole (18) is provided in the middle of the connecting block (17).

7. The internal mixer jacketed oil injector according to claim 6, characterized in that: The flange shaft (10) is provided with a piston rod (3), and one end of the piston rod (3) is provided with a threaded sleeve (4), a bushing (6) and a gasket (7).

8. The internal mixer jacketed oil injector according to claim 7, characterized in that: A spring (5) is fitted onto the bushing (6).

9. The internal mixer jacketed oil injector according to claim 8, characterized in that: The upper and lower ends of the bushing (6) are connected to the threaded sleeve (4) and the washer (7) respectively.