Graded quantitative feeding device of internal mixer

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By designing a graded quantitative feeding device for the internal mixer, the problems of equipment wear and inaccurate feeding caused by the input of a whole piece of hard rubber were solved, and the uniformity and efficient production of the rubber mixture were achieved.

CN223354629UActive Publication Date: 2025-09-19HUBEI ZAICHI NEW MATERIALS CO LTD

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Patent Information

Application Number: CN202422069592.4
Authority / Receiving Office: CN · China
Patent Type: Utility models(China)
Current Assignee / Owner
Filing Date: 2024-08-26
Publication Date: 2025-09-19
Estimated Expiration: 2034-08-26

AI Technical Summary

Technical Problem

In rubber processing, directly feeding a whole piece of 90-degree hard rubber into an internal mixer will cause impact and wear on the equipment, making it difficult to control the feed amount, affecting the quality of the mixture and production efficiency, and making it difficult to meet high-precision production requirements.

Method used

A graded quantitative feeding device for an internal mixer was designed, which included a crushing frame, a weighing hopper, a conveying mechanism, and a control valve. By crushing rubber blocks and weighing and controlling the feed amount in real time, the uniform conveying and accurate delivery of the rubber crumbs were ensured.

Benefits of technology

It effectively protects the mechanical structure of the internal mixer, improves the uniformity and quality of the rubber mixture, meets high-precision production requirements, reduces waste and costs, and improves production efficiency.

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Abstract

The utility model relates to the field of internal mixers, and discloses a graded quantitative feeding device of an internal mixer, which comprises a crushing frame for crushing rubber blocks; the crushing frame is mounted on the supporting frame, and the supporting frame is used for supporting the crushing frame; the weighing hopper is arranged below the crushing frame, and the weighing hopper is used for collecting the crushed rubber blocks and weighing the crushed rubber blocks; the conveying mechanism is installed on the supporting frame and arranged below the weighing hopper. According to the hard rubber crushing device, the whole hard rubber is pretreated through the crushing frame and is crushed into smaller fragments, so that overlarge impact and abrasion caused by directly putting the whole hard rubber into the internal mixer are avoided, the mechanical structure of the internal mixer is effectively protected, and the crushed rubber fragments are easier to mix and process in the internal mixer; and the uniformity and quality of the rubber mixture are improved.

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Description

Technical Field

[0001] The utility model relates to the field of internal mixers, in particular to a graded quantitative feeding device for an internal mixer. Background Art

[0002] In the rubber processing industry, internal mixers are key production equipment used to mix, plasticize, and knead rubber raw materials to obtain uniform and high-quality rubber mixtures. When processing large-volume, high-hardness, and high-viscosity rubber materials such as 90-degree hard rubber, the internal mixer feeding method faces many challenges.

[0003] First, directly putting a whole piece of 90-degree hard rubber into the internal mixer, due to the hardness and volume of the rubber block, often causes excessive impact and wear on the mechanical structure of the internal mixer, which may not only damage the equipment, but also affect the quality of the rubber mixture and production efficiency. The input of a whole piece of hard rubber makes it difficult to accurately control the feed amount, which not only affects the ratio and performance of the rubber mixture, but may also lead to waste and increased costs in the production process. Even if you try to cut the whole piece of hard rubber and put it separately, the size and shape of the cut rubber block are still difficult to keep consistent, resulting in large fluctuations in the weight and volume of each feed, which cannot meet the needs of high-precision production. Utility Model Content

[0004] In order to solve the above-mentioned problems, the present invention is implemented through the following technical solutions:

[0005] A graded and quantitative feeding device for an internal mixer comprises: a crushing frame for crushing rubber blocks; a support frame, the crushing frame is mounted on the support frame, the support frame is used to provide support for the crushing frame; a weighing hopper is arranged below the crushing frame, the weighing hopper is used to collect the crushed rubber blocks and weigh them; a conveying mechanism is mounted on the support frame and arranged below the weighing hopper, the conveying mechanism is used to feed the internal mixer; a weighing seat is mounted on the support frame and arranged on the conveying mechanism, and is used to weigh the conveying mechanism; a connecting pipe is connected between the weighing hopper and the conveying mechanism, the connecting pipe is used to feed the rubber blocks in the weighing hopper into the conveying mechanism; a fixed plate is mounted on the support frame, and the weighing seat is arranged on the fixed plate; a second sensor is mounted between the fixed plate and the weighing seat, the second sensor is used to detect the weight of the weighing seat and the conveying mechanism.

[0006] The crushing frame includes: two crushing rollers, which are symmetrically arranged in the crushing frame and are configured to rotate in the crushing frame for crushing rubber lumps; two groups of crushing blades, respectively connected to the two side walls of the crushing frame, for cooperating with the crushing rollers to crush the rubber lumps; two first power sources, installed on the crushing frame, the power shafts of the two first power sources are respectively connected to the two crushing rollers, and the first power sources are used to provide rotational power for the crushing rollers.

[0007] The weighing bucket includes: two connecting seats installed on the weighing bucket; two connecting plates, respectively connected to the two side walls of the support frame; two first sensors, respectively installed on the two connecting plates, and the two connecting seats are respectively connected to the two first sensors, and the first sensors are used to detect the weight of the connecting seats and the weighing bucket.

[0008] The connecting pipe includes a control valve installed on the connecting pipe and used for controlling the opening and closing of the connecting pipe.

[0009] The conveying mechanism includes: a conveying pipe, which is installed on the weighing seat, and the bottom end of the connecting pipe is connected to the conveying pipe; a feeding pipe, which is installed on the conveying pipe and is used to feed the internal mixer; a conveying rod, which is arranged in the conveying pipe and is used to convey rubber crumbs in the conveying pipe; a second power source, which is installed on the conveying pipe, and the power shaft of the second power source is connected to the conveying rod, and the second power source is used to provide rotational power for the conveying rod.

[0010] The delivery rod is spiral-shaped.

[0011] The utility model provides a graded quantitative feeding device for an internal mixer. Compared with the prior art, it has the following beneficial effects:

[0012] 1. The whole piece of hard rubber is pre-treated by the crushing frame and crushed into smaller pieces, which avoids excessive impact and wear caused by directly feeding the whole piece of hard rubber into the internal mixer, effectively protecting the mechanical structure of the internal mixer. The crushed rubber pieces are easier to mix and process in the internal mixer, improving the uniformity and quality of the rubber mixture. Since the feed amount is more accurate and controllable, production efficiency is also significantly improved.

[0013] 2. The setting of weighing hopper and weighing seat enables the weight and volume of each feeding to be accurately controlled, meeting the needs of high-precision production. It not only helps to maintain the proportion and performance stability of rubber mixture, but also effectively reduces waste and cost in the production process. The control valve design on the connecting pipe makes the feeding process more flexible and controllable, and the feeding amount and feeding speed can be adjusted at any time according to production needs. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 This is a schematic diagram of the three-dimensional structure proposed by the utility model.

[0015] Figure 2 This is a schematic diagram of the three-dimensional structure from another perspective proposed by the utility model.

[0016] Figure 3 This is a schematic diagram of the cross-sectional structure of the crushing frame proposed in the present invention.

[0017] Figure 4 This is a schematic diagram of the cross-sectional structure of the conveying mechanism proposed in the present utility model.

[0018] The reference numerals in the figures are:

[0019] 1. Crushing frame; 101. Crushing roller; 102. Crushing blade; 103. First power source;

[0020] 2. Support frame;

[0021] 3. Weighing bucket; 301. Connecting seat; 302. First sensor; 303. Connecting plate;

[0022] 4. Connecting pipe; 401. Control valve;

[0023] 5. Conveying mechanism; 501. Conveying pipe; 502. Conveying rod; 503. Second power source; 504. Feeding pipe;

[0024] 6. Fixed plate; 601. Weighing seat; 602. Second sensor. DETAILED DESCRIPTION

[0025] To make the purpose, technical solutions, and advantages of the embodiments of the present invention more clear, the technical solutions in the embodiments of the present invention are clearly and completely described. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making any creative efforts are within the scope of protection of the present invention.

[0026] Reference Figures 1-4, a graded quantitative feeding device for an internal mixer, comprising: a crushing frame 1 for crushing rubber blocks; a support frame 2, the crushing frame 1 is mounted on the support frame 2, the support frame 2 is used to provide support for the crushing frame 1, provide stable support for the crushing frame 1 and other components, and ensure the stability and safety of the equipment during operation; a weighing hopper 3, arranged below the crushing frame 1, the weighing hopper 3 is used to collect the crushed rubber blocks and weigh them, the weighing hopper 3 can collect the crushed rubber fragments and accurately weigh them, providing precise weight control for subsequent feeding operations, which helps to improve product quality and controllability of the production process; a conveying mechanism 5, mounted on the support frame 2, arranged below the weighing hopper 3, the conveying mechanism 5 is used to feed the internal mixer, and the conveying rod 502 is used to feed the rubber blocks to the conveying pipe 501 The rotating motion inside can stably and continuously transport the weighed rubber crumbs to the internal mixer, thereby improving the feeding efficiency and production continuity; the weighing seat 601 is installed on the support frame 2 and is arranged on the conveying mechanism 5 for weighing the conveying mechanism 5. The weighing seat 601 weighs the conveying mechanism 5 and can monitor the weight of the conveying mechanism 5 and its internal materials in real time, providing important data support for accurately controlling the feeding amount and realizing quantitative feeding; the connecting pipe 4 is connected between the weighing bucket 3 and the conveying mechanism 5. The connecting pipe 4 is used to feed the rubber crumbs in the weighing bucket 3 into the conveying mechanism 5, connect the weighing bucket 3 and the conveying mechanism 5, and ensure that the rubber crumbs can smoothly enter the conveying mechanism 5 from the weighing bucket 3. At the same time, the design of the control valve 401 makes the feeding process more flexible and controllable.

[0027] Reference Figure 1 and Figure 2 , the fixed plate 6 is installed on the support frame 2, and the weighing seat 601 is set on the fixed plate 6; the second sensor 602 is installed between the fixed plate 6 and the weighing seat 601. The second sensor 602 is used to detect the weight of the weighing seat 601 and the conveying mechanism 5, and monitor the weight of the weighing seat 601 and the conveying mechanism 5 in real time, providing important data support for accurately controlling the feeding amount and the production process, which helps to improve the quality of the product and the controllability of the production process. The second sensor 602 uses a pressure sensor, and can also use a weighing sensor.

[0028] Reference Figure 2 and Figure 3The crushing frame 1 includes: two crushing rollers 101, which are symmetrically arranged in the crushing frame 1 and are arranged to rotate in the crushing frame 1 to crush the rubber lumps; two groups of crushing blades 102, which are respectively connected to the two side walls of the crushing frame 1, and are used to cooperate with the crushing rollers 101 to crush the rubber lumps; two first power sources 103, which are installed on the crushing frame 1, and the power shafts of the two first power sources 103 are respectively connected to the two crushing rollers 101, and the first power source 103 is used to provide rotational power for the crushing rollers 101. Through the synergistic action of the crushing rollers 101 and the crushing blades 102, the rubber lumps can be effectively crushed into smaller pieces, which is convenient for subsequent weighing and feeding operations, and improves the overall processing efficiency. Through rotation and cutting, the rubber lumps are effectively crushed, the crushing efficiency and crushing quality are improved, and a good foundation is laid for subsequent operations. The first power source 103 adopts a servo motor, and can also adopt a stepper motor.

[0029] Reference Figure 1 and Figure 3 The weighing bucket 3 includes: two connecting seats 301, which are installed on the weighing bucket 3; two connecting plates 303, which are respectively connected to the two side walls of the support frame 2; two first sensors 302, which are respectively installed on the two connecting plates 303. The two connecting seats 301 are respectively connected to the two first sensors 302. The first sensors 302 are used to detect the weight of the connecting seats 301 and the weighing bucket 3. The first sensors 302 monitor the weight of the weighing bucket 3 and the material therein in real time, providing important data support for the precise control of the crushing and feeding process. The first sensor 302 uses a pressure sensor, and can also use a weighing sensor.

[0030] Reference Figure 2 and Figure 4 The connecting pipe 4 includes: a control valve 401, which is installed on the connecting pipe 4 and is used to control the opening and closing of the connecting pipe 4. The control valve 401 realizes the accurate and controllable feeding process of the rubber crumbs from the weighing hopper 3 to the conveying mechanism 5. The control valve 401 adopts an electric valve.

[0031] Reference Figure 1 and Figure 4The conveying mechanism 5 includes: a conveying pipe 501, which is installed on the weighing seat 601, and the bottom end of the connecting pipe 4 is connected to the conveying pipe 501; a feeding pipe 504, which is installed on the conveying pipe 501 and is used to feed the internal mixer; a conveying rod 502, which is arranged in the conveying pipe 501 and is used to convey the rubber crumbs in the conveying pipe 501; a second power source 503, which is installed on the conveying pipe 501 and has a power shaft connected to the conveying rod 502, and the second power source 503 is used to feed the conveying rod 502. Providing rotational power; the conveying rod 502 is spiral-shaped, and the conveying tube 501 design enables stable and continuous conveying of the rubber crumbs under the action of the conveying rod 502. The feed tube 504 ensures that the rubber crumbs can smoothly enter the internal mixer, improving feeding efficiency and production continuity. The conveying rod 502 rotates within the conveying tube 501, pushing the rubber crumbs forward, achieving an efficient and stable feeding process. The second power source 503 provides stable rotational power for the conveying rod 502, ensuring the continuity and efficiency of the feeding process. The spiral design of the conveying rod 502 further improves the conveying efficiency and effect. The second power source 503 adopts a stepper motor, and a servo motor can also be used.

[0032] During use, the rubber block to be processed is placed in the pulverizing frame 1. The pulverizing roller 101 rotates in the pulverizing frame 1. At the same time, the pulverizing blade 102 cooperates with the pulverizing roller 101 to pulverize the rubber block into smaller pieces. The pulverized rubber pieces fall into the weighing hopper 3. The first sensor 302 monitors the weight of the weighing hopper 3 and the material therein in real time and transmits the data to the control system on the internal mixer. The control valve 401 is opened, and the rubber pieces enter the conveying mechanism 5 from the weighing hopper 3 through the connecting pipe 4. When the rubber pieces in the weighing hopper 3 reach a preset weight, the control valve 401 is closed, the connecting pipe 4 stops feeding, and the conveying rod 502 rotates in the conveying pipe 501, stably and continuously conveying the rubber pieces to the internal mixer. The second sensor 602 monitors the weight of the conveying mechanism 5 and the material therein in real time and transmits the data to the control system. The control system adjusts the pulverizing and conveying process according to the weighing data to ensure quantitative feeding. The above steps are repeated to achieve continuous production and monitoring. The operator can monitor the equipment operation status and production data in real time through the control system and make adjustments as needed.

[0033] In summary, compared with the existing technology, it has the following beneficial effects:

[0034] The whole piece of hard rubber is pre-treated by the crushing frame 1 and crushed into smaller pieces, which avoids excessive impact and wear caused by directly feeding the whole piece of hard rubber into the internal mixer, effectively protecting the mechanical structure of the internal mixer. The crushed rubber pieces are easier to mix and process in the internal mixer, improving the uniformity and quality of the rubber mixture. Since the feed amount is more accurate and controllable, the production efficiency is also significantly improved.

[0035] The setting of the weighing bucket 3 and the weighing base 601 enables the weight and volume of each feeding to be accurately controlled, meeting the needs of high-precision production. It not only helps to maintain the proportion and performance stability of the rubber mixture, but also effectively reduces waste and costs in the production process. The design of the control valve 401 on the connecting pipe 4 makes the feeding process more flexible and controllable, and the feeding amount and feeding speed can be adjusted at any time according to production needs.

[0036] It should be noted that, in this document, relational terms such as first and second, etc., are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply the existence of any such actual relationship or order between these entities or operations. Moreover, the terms "comprises," "comprising," or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article, or device comprising a series of elements includes not only those elements, but also other elements not explicitly listed, or elements inherent to such process, method, article, or device. In the absence of further limitations, an element defined by the phrase "comprising a ..." does not exclude the presence of other identical elements in the process, method, article, or device comprising the element.

[0037] The above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit the same. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that the technical solutions described in the aforementioned embodiments can still be modified, or some of the technical features thereof can be replaced by equivalents. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the various embodiments of the present invention.

Claims

1. A graded quantitative feeding device for an internal mixer, characterized in that: include: A crushing frame (1) for crushing rubber blocks; A support frame (2), the crushing frame (1) is mounted on the support frame (2), and the support frame (2) is used to provide support for the crushing frame (1); A weighing hopper (3) is provided below the crushing frame (1), and the weighing hopper (3) is used to collect and weigh the crushed rubber blocks; A conveying mechanism (5) is installed on the support frame (2) and is arranged below the weighing bucket (3). The conveying mechanism (5) is used to feed materials to the internal mixer; A weighing seat (601) is mounted on the support frame (2) and arranged on the conveying mechanism (5) for weighing the conveying mechanism (5).

2. The graded quantitative feeding device for an internal mixer according to claim 1, characterized in that: Also includes: A connecting pipe (4) is connected between the weighing bucket (3) and the conveying mechanism (5), and the connecting pipe (4) is used to convey the rubber fragments in the weighing bucket (3) into the conveying mechanism (5).

3. The graded quantitative feeding device for an internal mixer according to claim 1, characterized in that: Also includes: A fixed plate (6) is mounted on the support frame (2), and the weighing seat (601) is arranged on the fixed plate (6); The second sensor (602) is installed between the fixing plate (6) and the weighing seat (601), and the second sensor (602) is used to detect the weight of the weighing seat (601) and the conveying mechanism (5).

4. The internal mixer graded quantitative feeding device according to claim 1, characterized in that: The crushing frame (1) comprises: Two crushing rollers (101) are symmetrically arranged in the crushing frame (1) and are configured to rotate in the crushing frame (1) to crush the rubber lumps; Two groups of crushing blades (102) are respectively connected to the two side walls of the crushing frame (1) and are used to cooperate with the crushing roller (101) to crush the rubber block; Two first power sources (103) are installed on the pulverizing frame (1), and the power shafts of the two first power sources (103) are respectively connected to the two pulverizing rollers (101). The first power sources (103) are used to provide rotational power for the pulverizing rollers (101).

5. The graded quantitative feeding device for an internal mixer according to claim 1, characterized in that: The weighing bucket (3) comprises: Two connecting seats (301) are installed on the weighing bucket (3); Two connecting plates (303) are respectively connected to the two side walls of the support frame (2); Two first sensors (302) are respectively installed on two connecting plates (303), and two connecting bases (301) are respectively connected to the two first sensors (302). The first sensors (302) are used to detect the weight of the connecting base (301) and the weighing bucket (3).

6. The graded quantitative feeding device for an internal mixer according to claim 2, characterized in that: The connecting pipe (4) comprises: The control valve (401) is installed on the connecting pipe (4) and is used to control the opening and closing of the connecting pipe (4).

7. The graded quantitative feeding device for an internal mixer according to claim 2, characterized in that: The conveying mechanism (5) comprises: A delivery pipe (501) is installed on the weighing seat (601), and the bottom end of the connecting pipe (4) is connected to the delivery pipe (501); A feed pipe (504), mounted on the delivery pipe (501), for feeding the internal mixer; A conveying rod (502) is arranged in the conveying pipe (501), and the conveying rod (502) is used to convey the rubber crumbs in the conveying pipe (501); The second power source (503) is installed on the delivery pipe (501), and the power shaft of the second power source (503) is connected to the delivery rod (502). The second power source (503) is used to provide rotational power for the delivery rod (502).

8. The graded quantitative feeding device for an internal mixer according to claim 7, characterized in that: The delivery rod (502) is spiral-shaped.