Feeding device and internal mixer comprising same

Abstract

This utility model relates to the field of internal mixing feeding technology, specifically to a feeding device and an internal mixer including the same, comprising a base, a spiral roller, a temperature control component, and a drive component. The base is provided with an inlet pipe and an outlet pipe. The spiral roller is provided with spiral blades. The two spiral rollers are arranged parallel to each other inside the base along its length. The temperature control component includes a constant temperature device and a heating tube. The heating tube is located inside the base to heat the raw material on the spiral blades. The drive component is located on the inner wall of the base near the end of the spiral roller. The drive component drives the spiral rod to carry the raw material from the inlet pipe to the outlet pipe on the base. During the flow, the raw material is squeezed and cut by the spiral blades on the spiral rod. The heating tube inside the base is also connected to a constant temperature device to heat the raw material inside the base, achieving a better mixing state to avoid incomplete or over-mixing during subsequent internal mixing processes, thereby improving production efficiency.

Description

Technical Field

[0001] This utility model relates to the field of sealing strip mixing and feeding technology, specifically to a feeding device and a mixing machine including the same. Background Technology

[0002] An internal mixer is a machine that can intermittently plasticize and mix polymer materials under adjustable, stable, and sealed pressure. In the production of sealing strips, an internal mixer is required to internally mix rubber raw materials to ensure the performance of the sealing strips.

[0003] Most existing internal mixers have feeding devices that simply feed materials without pre-treatment. This leads to incomplete or over-mixing of materials during internal mixing, resulting in decreased production efficiency. Utility Model Content

[0004] The purpose of this invention is to solve the problem that incomplete mixing or over-mixing is easily caused by the lack of pretreatment when feeding materials into a conventional sealing strip internal mixer. The invention provides a feeding device and an internal mixer including the same, which can perform pretreatment during feeding to make the raw materials more uniformly mixed.

[0005] To achieve the above objectives, according to one aspect of the present invention, a feeding device is provided, comprising:

[0006] The machine base has an inlet pipe on one side of its upper end and an outlet pipe on the other side away from the inlet pipe.

[0007] Two spiral rollers, each equipped with spiral fan blades, are arranged parallel to each other inside the machine base along its length.

[0008] A temperature control assembly includes a constant temperature device and a heating tube connected to each other. The constant temperature device is disposed on the outer surface of the machine base, and the heating tube is disposed inside the machine base for heating the raw material on the spiral fan blades.

[0009] A drive unit is disposed on the base near the end of the spiral rollers to drive the two spiral rollers to rotate in the same direction about their axis.

[0010] Preferably, the upper surface of the base is further provided with a pressure control device for adjusting the internal air pressure of the base.

[0011] Preferably, the spiral fan blades have the same offset direction.

[0012] Preferably, the spiral fan blades are coated with an anti-stick coating.

[0013] Preferably, the driving component is a servo motor, and a gear set is fixedly installed at the output end of the servo motor.

[0014] Preferably, the spiral roller has teeth on one end near the servo motor that are adapted to the gear set.

[0015] Preferably, the base has a housing for mounting the servo motor on one side near the end of the spiral roller.

[0016] According to another aspect of the present invention, a mixing mill is provided, including a feeding device, wherein the feeding device is the feeding device described above.

[0017] Through the above technical solution, the driving component drives the screw rod to carry the raw material from the feed pipe on the machine base to the discharge pipe. During the flow, the raw material is squeezed and cut by the spiral blades on the screw rod. The heating pipe in the machine base is also connected to a constant temperature device to heat the raw material in the machine base, so as to achieve a better mixing state and avoid incomplete or over-mixing in the subsequent internal mixing process, thereby improving production efficiency. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the structure of a mixing machine provided by this utility model;

[0019] Figure 2 This is a schematic diagram of the structure of a sealing strip mixer after the machine base and the machine box have been 80% transparent.

[0020] Figure 3 This is a structural schematic diagram of the gear assembly in this utility model.

[0021] Explanation of reference numerals in the attached figures

[0022] 1. Machine base; 2. Spiral roller; 3. Temperature control device; 4. Pressure control device; 5. Servo motor; 6. Machine box; 11. Feed pipe; 12. Discharge pipe; 21. Spiral fan blade; 22. Gear teeth; 51. Gear set. Detailed Implementation

[0023] The specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings. It should be understood that the specific embodiments described herein are for illustration and explanation only and are not intended to limit the scope of this utility model.

[0024] like Figure 1-3 The present invention provides a feeding device, which includes a base.

[0025] 1. Two spiral rollers 2. A temperature control assembly and a drive unit. A feed pipe 11 is provided on one side of the upper end of the machine base 1, and a discharge pipe 12 is provided on the other side away from the feed pipe 11. Spiral blades 21 are provided on the spiral rollers 2. The two spiral rollers 2 are arranged parallel to each other inside the machine base 1 along its length. The temperature control assembly includes a constant temperature device 3 and a heating tube 31 connected to each other. The constant temperature device 3 is located on the outer surface of the machine base 1, and the heating tube 31 is located inside the machine base 1 to heat the raw material on the spiral blades 21. The driving component is disposed on the inner wall of the machine base 1 near the end of the spiral roller 2 to drive the two spiral rollers 2 to rotate in the same direction around their axis. The driving component drives the spiral rod to carry the raw material from the feed pipe 11 on the machine base 1 to the discharge pipe 12. During the flow, the raw material will be squeezed and cut by the spiral fan blades 21 on the spiral rod. The heating pipe 31 in the machine base 1 is also connected to a constant temperature device 3 to heat the raw material in the machine base 1 to achieve a better mixing state and avoid incomplete or over-mixing in the subsequent internal mixing process, thereby improving production efficiency.

[0026] According to the technical solution provided by this utility model, the upper surface of the base 1 is also provided with a pressure control device 4 for adjusting the internal air pressure of the base. This utility model does not specifically limit the type of the pressure control device 4. For example, it can be a hydraulic pressure control device. The internal pressure of the base can be flexibly changed according to the performance required by the final product.

[0027] In some embodiments, the spiral fan blades 21 are offset in the same direction, which allows the raw material to move toward the discharge pipe 12 by relying solely on the fan blades.

[0028] According to the technical solution provided by this utility model, the spiral fan blade 21 is coated with an anti-adhesion coating. This utility model does not specifically limit the anti-adhesion coating, but its function is to prevent raw materials from sticking to the spiral fan blade 21. For example, a dimethyl silicone oil coating can be applied to the spiral fan blade 21.

[0029] like Figure 3 As shown, the driving component is a servo motor 5, and a gear set 51 is fixedly installed at the output end of the servo motor 5. The spiral roller 2 has gear teeth 22 that are adapted to the gear set 51 on one end near the servo motor 5. Through the gear set 51 and the corresponding gear teeth 22 on the spiral roller 2, the two spiral rollers 2 can rotate in the same direction and at the same speed. When used for the first time, by adjustment, the two spiral rollers 2 can be prevented from colliding when rotating in the same direction, and can also have excellent cutting effect.

[0030] According to the technical solution provided by this utility model, the base 1 is provided with a housing 6 for mounting the servo motor 5 on one side near the end of the spiral roller 2. The housing 6 is fixedly connected to the base 1. The number of transmission gears in the gear set 51 can be effectively reduced by the external housing 6.

[0031] According to another aspect of the present invention, a sealing strip internal mixer is provided, including a feeding device, wherein the feeding device is the feeding device described above.

[0032] The preferred embodiments of the present invention have been described in detail above with reference to the accompanying drawings; however, the present invention is not limited thereto. Within the scope of the technical concept of the present invention, various simple modifications can be made to the technical solution of the present invention. To avoid unnecessary repetition, the present invention will not describe the various possible combinations separately. However, these simple modifications and combinations should also be considered as the content disclosed in the present invention and are all within the protection scope of the present invention.

Claims

1. A feeding device, characterized in that, It comprises: a machine base (1), the upper end of which is provided with an inlet pipe (11), and the other end is provided with an outlet pipe (12) away from the inlet pipe (11); two spiral rollers (2) provided with spiral vanes (21), which are arranged in parallel inside the machine base (1) along the length direction of the machine base (1); a temperature control assembly, which comprises a thermostat (3) and a heating pipe (31) connected with each other, the thermostat (3) is arranged on the outer surface of the machine base (1), and the heating pipe (31) is arranged inside the machine base (1) to heat the raw materials on the spiral vanes (21); a driving member arranged on the machine base (1) near one side of the end of the spiral roller (2) to drive the two spiral rollers (2) to rotate around their axes in the same direction.

2. The feeder of claim 1, wherein The upper surface of the machine base (1) is further provided with a pressure control device (4) to adjust the air pressure inside the machine base.

3. The feeder of claim 1, wherein The spiral vanes (21) have the same vane offset direction.

4. The feeder of claim 3, wherein The spiral vanes (21) are coated with an anti-sticking coating.

5. The feeder of claim 1, wherein The driving member is a servo motor (5), and a gear set (51) is fixedly installed on the output end of the servo motor (5).

6. The feeder of claim 5, wherein The spiral roller (2) is provided with a gear tooth (22) adapted to the gear set (51) on one end near the servo motor (5).

7. The feeder of claim 6, wherein The machine base (1) is provided with a machine box (6) for installing the servo motor (5) on one side near the end of the spiral roller (2).

8. An internal mixer characterized by comprising: The feeding device according to any one of claims 1-7.

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