A new type of feeding door device suitable for an internal mixer
The sealing assembly, adjusted by guide rods and screws, solved the problem of rapid wear on the feed gate of the internal mixer, achieving reduced wear on copper bars and stable sealing effect, thereby improving production efficiency and equipment reliability.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- SHENYANG HEPING ZIWUXIAN TIRE MFG CO LTD
- Filing Date
- 2025-08-27
- Publication Date
- 2026-07-24
AI Technical Summary
The sealing structure of the feed door of the existing internal mixer wears out quickly during high-frequency opening and closing, resulting in high production costs, poor equipment stability and reliability, and poor sealing effect, which affects production efficiency.
The sealing assembly uses a combination of guide rods and springs. The guide rods adjust the friction between the copper strip and the frame to reduce wear, and the screws adjust the spring compression to compensate for elastic loss and ensure a good seal.
It reduces wear on copper strips, lowers production costs, improves equipment flexibility and stability, ensures sealing performance, and enhances production efficiency.
Smart Images
Figure CN224544989U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of tire manufacturing technology, and in particular to a novel feeding gate device suitable for internal mixers. Background Technology
[0002] In the tire manufacturing compounding process, internal mixers are required for rubber mixing. Current internal mixer processes are generally conducted in a completely sealed environment, with the feed door remaining closed throughout the mixing process. The feed door is only opened after the rubber is discharged, allowing the next batch of rubber to be added. Because there is relative movement between the feed door and the frame, gaps exist between them. During mixing, powder under pressure may spray out from these gaps, thus requiring a high level of sealing for the feed door. Existing internal mixer feed door sealing devices typically use copper strips combined with elastic elements as the side sealing structure of the feed door. For example, a spring provides elasticity to the copper strip, automatically compensating for the decrease in sealing performance caused by wear of the copper strip. However, this sealing structure still has the following disadvantages: 1. Under the action of the spring, the copper strip is continuously in close contact with the inner wall of the frame during the opening and closing of the feeding door. The excessive friction caused by this leads to accelerated wear of the copper strip. Under high-frequency opening and closing conditions, the copper strip needs to be replaced frequently, which not only increases production costs but also prolongs equipment downtime, seriously affecting production efficiency. At the same time, due to the large friction between the copper strip and the frame when opening and closing the door, the opening process of the feeding door is more laborious, which places higher demands on the drive device, increases equipment energy consumption and wear of drive components, and reduces the stability and reliability of equipment operation; 2. After the spring has been subjected to alternating loads for a long time, it is very easy for the elasticity to decrease. Once the spring elasticity is insufficient, the copper strip will not be able to fit tightly with the frame, and the material inside the internal mixer will easily leak. Existing technology usually compensates for the decrease in elasticity by adjusting the compression of the spring. Since the existing sealing structure usually uses multiple springs to provide elasticity to the copper strip in order to ensure uniform force on the copper strip, the process of adjusting the spring compression is time-consuming and affects production. Utility Model Content
[0003] The purpose of this invention is to provide a novel feeding gate device suitable for internal mixers, in order to solve the problems mentioned in the background art.
[0004] To solve the above-mentioned technical problems, this utility model provides the following technical solution: a novel feeding gate device suitable for an internal mixer, comprising a base plate, a frame connected to the base plate, a feeding gate body hinged to the frame, a sealing assembly installed on the feeding gate body, the sealing assembly comprising a mounting seat, an adjusting seat, and a copper strip, two mounting seats connected to the feeding gate body, an adjusting seat provided on one side of the mounting seat, a copper strip provided on one side of the adjusting seat, and both the adjusting seat and the copper strip are slidably connected to the feeding gate body, the copper strip is provided on the inner wall of the frame, multiple connecting seats are connected to the copper strip, a first guide rod is connected to the connecting seat, a spring is sleeved on the first guide rod, one end of the spring is provided on the connecting seat, and the other end is provided on the adjusting seat, through holes are opened on the mounting seat and the adjusting seat at positions corresponding to the first guide rod, and the first guide rod is slidably connected in the through holes.
[0005] Preferably, a telescopic rod is hinged to the base plate, and the output end of the telescopic rod is hinged to the feeding gate body.
[0006] Preferably, each of the two first guide rods is threaded with a nut, and the nut is located on one side of the mounting base.
[0007] Preferably, the adjusting seat has a through groove, and a limiting member is slidably connected in the through groove, and the limiting member is connected to the feeding gate body.
[0008] Preferably, a bidirectional screw is hinged to the frame, and two movable seats are threadedly connected to the bidirectional screw. A hollow guide rail is connected to the movable seat, and a second guide rod is slidably connected to the hollow guide rail. The two second guide rods are respectively connected to two adjusting seats.
[0009] Preferably, a mounting plate is hinged to the bidirectional screw, and the mounting plate is connected to the frame, and a knob is connected to the bidirectional screw.
[0010] This utility model provides a novel feeding gate device suitable for internal mixers. Its advantages are as follows: The sealing assembly of this utility model guides the second guide rod via a hollow guide rail, causing the adjusting seat to move away from the copper strip when the gate is open, reducing the pressure of the spring on the connecting seat, thereby reducing friction between the copper strip and the frame, making the feeding gate open more flexibly and reducing copper strip wear. When the gate is closed, the adjusting seat moves closer to the copper strip, increasing the pressure of the spring on the connecting seat, ensuring a tight fit between the copper strip and the frame. The position of the hollow guide rail is adjusted by a bidirectional screw, which in turn drives the adjusting seat to adjust via the second guide rod, thereby increasing the spring compression and compensating for spring elasticity loss, ensuring a good sealing effect. Attached Figure Description
[0011] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.
[0012] Figure 1 This is a schematic diagram of the overall three-dimensional structure of the present invention; Figure 2 for Figure 1 Enlarged view of the structure of region A in the middle; Figure 3 This is a top view of the overall structure of this utility model; Figure 4 This is a top view sectional diagram of the adjustment seat of this utility model.
[0013] In the diagram: 1. Base plate; 11. Frame; 12. Telescopic rod; 13. Feeding gate body; 2. Sealing assembly; 21. Mounting seat; 22. First guide rod; 23. Nut; 24. Adjusting seat; 25. Through hole; 26. Through groove; 27. Limiting component; 28. Connecting seat; 29. Spring; 210. Copper strip; 211. Second guide rod; 212. Hollow guide rail; 213. Moving seat; 214. Bidirectional screw; 215. Mounting plate; 216. Knob. Detailed Implementation
[0014] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.
[0015] Please see the appendix Figure 1 -Appendix Figure 4This utility model provides an embodiment of a novel feeding gate device suitable for an internal mixer, comprising a base plate 1, a frame 11 connected to the base plate 1, a feeding gate body 13 hinged to the frame 11, and a sealing assembly 2 installed on the feeding gate body 13. The sealing assembly 2 includes a mounting base 21, an adjusting base 24, and a copper strip 210. Two mounting bases 21 are connected to the feeding gate body 13. An adjusting base 24 is provided on one side of the mounting base 21, and a copper strip 210 is provided on one side of the adjusting base 24. Both the adjusting base 24 and the copper strip 210 are slidably connected to the feeding gate body 13. The copper strip 210 is disposed on the inner wall of the frame 11, and multiple connecting seats 28 are connected to the copper strip 210. A first guide rod 22 is attached, and a spring 29 is sleeved on the first guide rod 22. One end of the spring 29 is set on the connecting seat 28, and the other end is set on the adjusting seat 24. Through holes 25 are opened on the mounting seat 21 and the adjusting seat 24 at positions corresponding to the first guide rod 22, and the first guide rod 22 is slidably connected in the through holes 25. The base plate 1 is used to support the frame 11 and the telescopic rod 12. The frame 11 provides a hinged mounting base for the feeding door body 13. The feeding door body 13 is the carrier for installing the sealing component 2. The mounting seat 21 is used to install the first guide rod 22, and the adjusting seat 24 is used to adjust the extension and retraction of the spring 29. The copper strip 210 is used to achieve a sealing fit. The first guide rod 22 provides support for the spring 29. For installation and guidance support, spring 29 provides the elastic force required for the copper strip 210 to fit. Connecting seat 28 connects the copper strip 210 and the first guide rod 22. Through hole 25 provides space for the sliding of the first guide rod 22. Telescopic rod 12 is hinged on the base plate 1. The output end of telescopic rod 12 is hinged to the feeding gate body 13. Telescopic rod 12 is used to control the opening and closing action of feeding gate body 13. Nuts 23 are threaded onto both first guide rods 22. Nuts 23 are located on one side of mounting seat 21. Nuts 23 are used to limit the movement range of the first guide rod 22. Adjusting seat 24 has a through groove 26. Limiting member 27 is slidably connected in the through groove 26. Limiting member 27 is connected to the feeding gate body 13. On the material gate body 13, the through groove 26 provides sliding space for the limiting member 27, which is used to limit the sliding trajectory of the adjusting seat 24; a bidirectional screw 214 is hinged on the frame 11, and two movable seats 213 are threadedly connected to the bidirectional screw 214. A hollow guide rail 212 is connected to the movable seat 213, and a second guide rod 211 is slidably connected to the hollow guide rail 212. The two second guide rods 211 are respectively connected to the two adjusting seats 24. The bidirectional screw 214 can drive the two movable seats 213 to move in opposite directions. The movable seat 213 is used to install the hollow guide rail 212, and the hollow guide rail 212 provides sliding guidance for the second guide rod 211. The second guide rod 211 is used to drive the adjusting seat 24.A mounting plate 215 is hinged to the bidirectional screw 214 and is connected to the frame 11. A knob 216 is connected to the bidirectional screw 214. The mounting plate 215 is used to mount the bidirectional screw 214, and the knob 216 facilitates the rotation of the bidirectional screw 214.
[0016] Working principle: When using this utility model, the opening and closing of the feeding gate body 13 is controlled by the telescopic rod 12. When the telescopic rod 12 is retracted, the feeding gate body 13 deflects and opens on the frame 11. During this process, the second guide rod 211 slides downward along the hollow guide rail 212, causing the adjusting seat 24 to slide on the limiting member 27 via the through groove 26 and move away from the copper strip 210. The spring 29 on the first guide rod 22 releases its elastic force, so that the copper strip 210 is not affected by the elastic force of the spring 29 or the elastic force it receives is reduced, thereby reducing the frictional resistance between the copper strip 210 and the frame 11, making the feeding gate body 13 open more flexibly and reducing the wear of the copper strip 210. When the telescopic rod 12 is extended, the feeding gate body 13 deflects and closes on the frame 11. During this process, the second guide rod 211 slides upward along the hollow guide rail 212, causing the adjusting seat 24 to move closer to the copper strip 210. When the direction of 10 is moved, the adjusting seat 24 applies pressure to the connecting seat 28 through the spring 29, so that the copper strip 210 on the connecting seat 28 fits against the frame 11; when the elasticity of the spring 29 decreases, the knob 216 can be turned to drive the bidirectional screw 214 to rotate on the mounting plate 215. The moving seat 213 on the bidirectional screw 214 moves along the frame 11 towards the side closer to the copper strip 210. Through the second guide rod 211, it drives the adjusting seat 24 to increase the compression of the spring 29, thereby compensating for the loss of elasticity and ensuring that the copper strip 210 fits tightly against the frame 11, maintaining a stable sealing effect; wherein, the base plate 1 is used to install the telescopic rod 12 and the frame 11, the mounting seat 21 is used to install the first guide rod 22, the through hole 25 is used to accommodate the first guide rod 22, the first guide rod 22 is used to install the spring 29 and the connecting seat 28, and the nut 23 is used to limit the movement of the first guide rod 22.
[0017] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.
[0018] The device embodiments described above are merely illustrative. The units described as separate components may or may not be physically separate. The components shown as units may or may not be physical units; that is, they may be located in one place or distributed across multiple network units. Some or all of the modules can be selected to achieve the purpose of this embodiment according to actual needs. Those skilled in the art can understand and implement this without any creative effort.
[0019] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model, and not to limit it. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this utility model.
Claims
1. A novel feeding gate device suitable for internal mixers, comprising a base plate (1), characterized in that: A frame (11) is connected to the base plate (1), and a feeding gate body (13) is hinged to the frame (11). A sealing assembly (2) is installed on the feeding gate body (13). The sealing assembly (2) includes a mounting base (21), an adjusting base (24), and a copper strip (210). Two mounting bases (21) are connected to the feeding gate body (13). An adjusting base (24) is provided on one side of the mounting base (21), and a copper strip (210) is provided on one side of the adjusting base (24). Both the adjusting base (24) and the copper strip (210) are slidably connected to the feeding gate body (13). On the frame (11), a copper strip (210) is set on the inner wall of the frame (11). Multiple connecting seats (28) are connected to the copper strip (210). A first guide rod (22) is connected to the connecting seat (28). A spring (29) is sleeved on the first guide rod (22). One end of the spring (29) is set on the connecting seat (28), and the other end is set on the adjusting seat (24). Through holes (25) are opened on the mounting seat (21) and the adjusting seat (24) at the positions corresponding to the first guide rod (22). The first guide rod (22) is slidably connected in the through hole (25).
2. The novel feeding gate device for an internal mixer according to claim 1, characterized in that: A telescopic rod (12) is hinged to the base plate (1), and the output end of the telescopic rod (12) is hinged to the feeding gate body (13).
3. A novel feeding gate device suitable for an internal mixer according to claim 1, characterized in that: Both of the first guide rods (22) are threaded with nuts (23), and the nuts (23) are located on one side of the mounting base (21).
4. A novel feeding gate device suitable for an internal mixer according to claim 1, characterized in that: The adjusting seat (24) has a through groove (26), and a limiting member (27) is slidably connected in the through groove (26), and the limiting member (27) is connected to the feeding gate body (13).
5. A novel feeding gate device suitable for an internal mixer according to claim 1, characterized in that: A bidirectional screw (214) is hinged on the frame (11). Two movable seats (213) are threaded onto the bidirectional screw (214). A hollow guide rail (212) is connected to the movable seat (213). A second guide rod (211) is slidably connected to the hollow guide rail (212). The two second guide rods (211) are respectively connected to two adjusting seats (24).
6. A novel feeding gate device suitable for an internal mixer according to claim 5, characterized in that: A mounting plate (215) is hinged to the bidirectional screw (214), and the mounting plate (215) is connected to the frame (11). A knob (216) is connected to the bidirectional screw (214).