mixer

Abstract

The utility model discloses a mixer, its characterized in that: including organism (1), have the accommodation cavity (130) for holding material, two stirring paddles (2) are arranged at the interval in accommodation cavity (130), each stirring paddle (2) includes the central shaft (21) of the height direction extension of accommodation cavity (130) and the blade (22) of the axial interval and staggered arrangement in the outer periphery of the central shaft (21) along the central shaft (21), and first drive mechanism (3) is used for driving each stirring paddle (2) rotates around the axis of the central shaft (21). Compared with prior art, the mixer of the utility model can improve material stirring uniformity.

Description

Technical Field

[0001] This utility model relates to the field of powder mixing technology, specifically to a mixing machine. Background Technology

[0002] In a suspension system, vibrations occur due to impacts on the elastic elements. To improve ride smoothness and comfort, shock absorbers are installed in parallel with the elastic elements. When relative movement occurs between the vehicle frame and the axle due to vibration, the piston inside the shock absorber moves up and down. Because of the frequent relative movement between the piston and the shock absorber cylinder, the piston surface needs to be coated with a wear-resistant material with low frictional resistance (rubber coating), such as polytetrafluoroethylene (PTFE), to extend its service life.

[0003] Polytetrafluoroethylene (PTFE) products possess excellent wear resistance, pressure resistance, and a low coefficient of friction. They are formed by cold pressing in a mold followed by sintering. Mixing is a fundamental step in the manufacture of PTFE products, and its results are directly related to subsequent processes such as molding, sintering, pressing, and processing, and to a certain extent, influence the final physical and chemical properties of the material.

[0004] To ensure that the polytetrafluoroethylene powder particles are uniform, the powder needs to be stirred. For details, please refer to the applicant's earlier Chinese patent application number CN201610275514.7, "A Mixing Machine".

[0005] However, in the above scheme, the stirring force of a single stirring paddle is insufficient to ensure that the material inside the tank is stirred evenly. Utility Model Content

[0006] The technical problem to be solved by this utility model is to provide a mixer that can improve the uniformity of material mixing, based on the current state of the technology.

[0007] The technical solution adopted by this utility model to solve the above-mentioned technical problems is: a mixing machine, characterized in that: it includes...

[0008] The body has a accommodating cavity for holding materials;

[0009] Two agitators are spaced apart within the accommodating cavity. Each agitator includes a central shaft extending along the height direction of the accommodating cavity and multiple blades axially spaced and staggered around the central shaft.

[0010] A first driving mechanism is used to drive each of the aforementioned stirring paddles to rotate about the axis of its central shaft.

[0011] In order to avoid material splashing during the mixing process and facilitate material handling, the machine body includes a barrel with an open top and a cover for opening or closing the open top of the barrel. When the cover is closed, the cover and the barrel form the receiving cavity.

[0012] To ensure that the material at each location in the accommodating cavity is uniformly stirred, the machine body also includes a base, the barrel is rotatably mounted on the base, the central axis of each stirring paddle is rotatably connected to the cover and arranged off-axis from the cover, and the mixer also includes a second drive mechanism for driving the barrel to rotate around its own axis.

[0013] To facilitate the opening and closing of the cover, the machine body also includes a top seat, which is hinged to the top of the base. The cover is located at the bottom of the top seat, so that the cover can open or close the top opening of the barrel during the synchronous rotation with the top seat, thereby allowing each of the stirring paddles to enter and exit the barrel through the top opening of the barrel during the synchronous rotation with the cover.

[0014] To ensure pressure balance during stirring, the cover is provided with a vent hole that communicates with the accommodating cavity.

[0015] To prevent material from sticking to the cover, a vibratory hammer is installed on the top of the cover.

[0016] To ensure a tight seal, the top surface of the barrel has a slope that gradually rises from the inside to the outside, and the bottom of the lid has a sealing ring corresponding to the slope. When the lid is closed, the sealing ring is tightly attached to the slope.

[0017] To drive the two stirring paddles to move in opposite directions, the first driving mechanism includes:

[0018] Two meshing gears, corresponding to the stirring paddles, are coaxially connected to the central shaft of the corresponding stirring paddle; and

[0019] The first driving component has its power output shaft coaxially connected to the central shaft of one of the stirring paddles.

[0020] To facilitate the loading and unloading of materials inside the barrel, the machine body includes:

[0021] The base includes a fixed seat and a movable seat hinged to the fixed seat; and

[0022] The barrel, used to hold materials, is rotatably mounted on top of the movable seat so that the barrel can rotate synchronously with the movable seat.

[0023] In order to achieve independent movement of the two agitators, the first drive mechanism includes two drive components corresponding to the agitators, and the power output shaft of each drive component is coaxially connected to the central shaft of the corresponding agitator.

[0024] To facilitate stirring, each of the blades has a first side and a second side arranged opposite to each other in the width direction, and the first side of the blade is located in front of the blade in the direction of rotation along the central axis, and the thickness of the blade gradually increases from the first side to the second side.

[0025] Compared with the prior art, the advantages of this utility model are as follows: by arranging two stirring paddles at intervals in the housing cavity of the machine body, and forming a stirring paddle with a central shaft extending axially along the housing cavity and multiple blades spaced apart and staggered around the central shaft, the two stirring paddles rotate around their respective central shafts under the drive of the first driving mechanism, which helps to improve the uniformity of material mixing. Attached Figure Description

[0026] Figure 1 This is a three-dimensional structural diagram of Embodiment 1 of the mixer of this utility model with the cover closed;

[0027] Figure 2 for Figure 1 A longitudinal sectional view;

[0028] Figure 3 for Figure 1 A three-dimensional structural diagram of the medium-sized mixer after the cover is opened;

[0029] Figure 4 This is a longitudinal sectional view of Embodiment 2 of the mixer of this utility model with the cover closed;

[0030] Figure 5 This is a three-dimensional structural diagram of Embodiment 3 of the mixing machine of this utility model with the lid open and the barrel flipped forward. Detailed Implementation

[0031] The present invention will be further described in detail below with reference to the accompanying drawings and embodiments.

[0032] In the specification and claims of this utility model, terms indicating direction, such as "front," "rear," "upper," "lower," "left," "right," "side," "top," and "bottom," are used to describe various exemplary structural parts and elements of this utility model. However, the use of these terms is merely for the purpose of explanation and is based on the exemplary orientations shown in the accompanying drawings. Since the embodiments disclosed in this utility model can be arranged in different orientations, these terms indicating direction are for illustrative purposes only and should not be regarded as limitations. For example, "upper" and "lower" are not necessarily limited to directions opposite to or consistent with the direction of gravity.

[0033] Example 1:

[0034] like Figures 1 to 3 The image shows a first preferred embodiment of the mixer of this utility model. The mixer includes an organic body 1, a stirring paddle 2, a first drive mechanism 3, a second drive mechanism, and a vibrating hammer 5.

[0035] The body 1 includes a base 11, a top seat 12, a barrel 13, and a cover 14. Specifically, the base 11 has a first mounting cavity 110 inside; the rear side of the bottom of the top seat 12 is hinged to the rear side of the top of the base 11, and the top seat 12 has a second mounting cavity 120 inside, which is connected to the outside atmosphere; the barrel 13 is rotatably connected to the base 11 by a pivot 131 protruding from its bottom wall, the pivot 131 passing downward through the base 11 and extending into the first mounting cavity 110, and the top end face of the barrel 13 has a slope 132 that gradually rises from the inside to the outside; the cover 14 is located at the bottom of the top seat 12, so that the cover... The top opening of the barrel 13 can be opened or closed during the synchronous flipping process with the top seat 12. The cover 14 has a vent hole 141 that communicates with the receiving cavity 130. The bottom of the cover 14 has a sealing ring 142 corresponding to the inclined surface 132. When the cover 14 is closed, the cover 14 and the barrel 13 surround and form a receiving cavity 130 for holding materials. The sealing ring 142 is tightly attached to the inclined surface 132 to achieve a sealing fit. By cooperating with the inclined surface 132 and the sealing ring 142, the requirements for assembly size can be reduced and the sealing performance can be improved.

[0036] There are two agitator blades 2, which are spaced apart within the aforementioned accommodating cavity 130. Specifically, each agitator blade 2 includes a central shaft 21 extending along the height direction of the accommodating cavity 130 and multiple blades 22 spaced apart and staggered along the axial direction of the central shaft 21 on its outer periphery. In this embodiment, the central shaft 21 of each agitator blade 2 is rotatably connected to the cover 14 and is arranged off-axis from the cover 14. In this way, each agitator blade 2 can enter and exit the barrel 13 through the top opening of the barrel 13 during the synchronous rotation with the cover 14. When the cover 14 is closed, the blades 22 of each agitator blade 2 are close to the inner wall of the barrel 13. In addition, the central shaft 21 of each agitator blade 2 passes upward through the cover 14 and extends into the second mounting cavity 120. In this embodiment, the accommodating cavity 130 is cylindrical, and its axial direction is consistent with its height direction. Specifically, the central axis 21 extends along the height direction of the accommodating cavity 130, meaning it extends between the top opening of the barrel 13 and the bottom of the barrel 13, allowing for a certain angle with the height direction (axial direction).

[0037] The first drive mechanism 3 is installed in the second mounting cavity 120 and is used to drive each stirring paddle 2 to rotate around its central shaft 21, with the two stirring paddles rotating in opposite directions. In this embodiment, the first drive mechanism 3 includes gears 31 and a first drive member 32. Specifically, there are two gears 31, each corresponding to one of the stirring paddles 2. Each gear 31 is coaxially connected to the central shaft 21 of the corresponding stirring paddle 2, and the two gears 31 mesh with each other. The first drive member 32 is a motor, and its power output shaft is coaxially connected to the central shaft 21 of one of the stirring paddles 2. When the first drive member 32 is started, it drives the corresponding stirring paddle 2 to rotate forward through one of the central shafts 21, and drives the corresponding stirring paddle 2 to rotate in the opposite direction through the meshing relationship of the two gears 31 via the other central shaft 21.

[0038] In this embodiment, each blade 22 has a first side 221 and a second side 222 arranged opposite to each other along the width direction, and the first side 221 of the blade 22 is located on the front side of the blade 22 in the rotation direction along the central axis 21. The thickness of the blade 22 gradually increases from the first side 221 to the second side 222. In this way, during the rotation of the stirring paddle 2, the thinner side of the blade 22 receives the fluid first, which facilitates stirring.

[0039] The second drive mechanism is used to drive the barrel 13 to rotate around its own axis. In this embodiment, the second drive mechanism includes a second drive component 41, which is a motor installed in the first mounting cavity 110, and its power output shaft is coaxially connected to the rotating shaft 131. When the second drive component 41 is started, the barrel 13 is driven to rotate through the rotating shaft 131.

[0040] The vibratory hammer 5 is located in the first mounting cavity 110 and is installed on the top of the cover 14. It is used to vibrate the cover 14 after stirring, thereby preventing material from sticking to the cover 14.

[0041] Example 2:

[0042] like Figure 4 The image shown is a second preferred embodiment of the mixer of this utility model. The difference from Embodiment 1 is that:

[0043] In this embodiment, the first drive mechanism 3 includes two drive components 32 that correspond one-to-one with the above-mentioned stirring paddles 2. Each drive component 32 is a motor, and its power output shaft is coaxially connected to the central shaft 21 of the corresponding stirring paddle 2, so that the two stirring paddles 2 can move independently.

[0044] Example 3:

[0045] like Figure 5 The image shows the third preferred embodiment of the mixer of this utility model.

[0046] In this embodiment, the base 11 includes a fixed base 111 and a movable base 112. The movable base 112 is hinged to the fixed base 111 via a hinge shaft 1121 extending in the left-right direction on its front side. The rear side of the bottom of the top base 12 is hinged to the rear side of the top of the fixed base 111. The barrel 13 is rotatably mounted on the top of the movable base 112 via a pivot 131 protruding from its bottom wall. The second drive member 41 is mounted on the bottom of the movable base 112.

[0047] In addition, the mixer also includes a third drive mechanism for driving the movable seat 112 to rotate back and forth. In this embodiment, the third drive mechanism includes a third drive component 61, which is a motor, installed on the right side of the fixed seat 111, and its power output end is coaxially connected to the hinge shaft 1121. When the third drive component 61 is activated, the movable seat 112 is driven to rotate back and forth through the hinge shaft 1121, so that the barrel 13 can rotate synchronously with the movable seat 112, thereby facilitating the entry and exit of materials in the barrel 13.

[0048] In existing technologies, the discharge port of the barrel is located at the bottom, resulting in a seam gap at the bottom. When the powder to be mixed is added, uneven mixing occurs within this gap. In this embodiment, however, the barrel 13 is a single piece, and the mixed material discharges from the top of the barrel 13. There is no seam at the bottom of the barrel 13, avoiding uneven mixing caused by seams. The discharge method of the barrel 13 in this embodiment can also be used in Embodiments 1 and 2.

[0049] Taking Example 3 as an example, the working principle of this utility model is as follows:

[0050] (1) When it is necessary to stir the polytetrafluoroethylene powder, first flip the top seat 12 backward to drive the cover 14 to open the top opening of the barrel 13 (e.g. Figure 3 (As shown), then pour the polytetrafluoroethylene powder into the receiving cavity 130 of the barrel 13, and then flip the top seat 12 forward to drive the cover 14 to close the top opening of the barrel 13 (as shown). Figure 1 and Figure 2 As shown), the second drive unit 41 is activated to drive the barrel 13 to rotate around its own axis, and the first drive mechanism 3 is activated to drive the two stirring paddles 2 to rotate around their own axis. During this process, the polytetrafluoroethylene powder contained in the accommodating cavity 130 is fully and evenly stirred.

[0051] (2) After the mixing is finished, the top seat 12 is flipped backward to drive the cover 14 to open the top opening of the barrel 13. Then the third drive unit 61 is started to drive the movable seat 112 to flip forward so that the mixed polytetrafluoroethylene powder can be poured out.

Claims

1. A mixing machine, characterized in that: Including The body (1) has a receiving cavity (130) for holding materials; Two agitators (2) are spaced apart within the accommodating cavity (130). Each agitator (2) includes a central shaft (21) extending along the height direction of the accommodating cavity (130) and multiple blades (22) axially spaced and staggered around the central shaft (21); and The first drive mechanism (3) is used to drive each of the stirring paddles (2) to rotate about the axis of its central axis (21).

2. The mixer according to claim 1, characterized in that: The body (1) includes a barrel (13) with an open top and a cover (14) for opening or closing the open top of the barrel (13). When the cover (14) is closed, the accommodating cavity (130) is formed between the cover (14) and the barrel (13).

3. The mixer according to claim 2, characterized in that: The machine body (1) also includes a base (11), the barrel (13) is rotatably mounted on the base (11), the central axis (21) of each of the stirring paddles (2) is rotatably connected to the cover (14) and arranged off the axis of the cover (14), and the mixer also includes a second drive mechanism for driving the barrel (13) to rotate around its own axis.

4. The mixer according to claim 3, characterized in that: The machine body (1) also includes a top seat (12), which is hinged to the top of the base (11). The cover (14) is located at the bottom of the top seat (12) so that the cover (14) can open or close the top opening of the barrel (13) during the synchronous flipping process with the top seat (12), thereby allowing each of the stirring paddles (2) to enter and exit the barrel (13) through the top opening of the barrel (13) during the synchronous flipping process with the cover (14).

5. The mixer according to claim 2, characterized in that: The cover (14) is provided with a vent (141) that communicates with the accommodating cavity (130).

6. The mixer according to claim 2, characterized in that: A vibratory hammer (5) is installed on the top of the cover (14).

7. The mixer according to claim 2, characterized in that: The top end face of the barrel (13) has a slope (132) that gradually rises from the inside to the outside. The bottom of the cover (14) has a sealing ring (142) corresponding to the slope (132). When the cover (14) is closed, the sealing ring (142) is tightly attached to the slope (132).

8. The mixer according to claim 1, characterized in that: The body (1) includes The base (11) includes a fixed seat (111) and a movable seat (112) hinged to the fixed seat (111); and The barrel (13), used to hold materials, is rotatably mounted on the top of the movable seat (112) so that the barrel (13) can rotate synchronously with the movable seat (112).

9. The mixer according to any one of claims 1 to 8, characterized in that: The first drive mechanism (3) includes: Two meshing gears (31) correspond to the stirring paddle (2), and each gear (31) is coaxially connected to the central shaft (21) of the corresponding stirring paddle (2); as well as The first drive unit (32) has its power output shaft coaxially connected to the central shaft (21) of one of the stirring paddles (2); Alternatively, the first drive mechanism (3) may include two drive members (32) corresponding to the stirring paddle (2), and the power output shaft of each drive member (32) is coaxially connected to the central shaft (21) of the corresponding stirring paddle (2).

10. The mixer according to any one of claims 1 to 8, characterized in that: Each of the blades (22) has a first side (221) and a second side (222) arranged opposite to each other in the width direction, and the first side (221) of the blade (22) is located on the front side of the blade (22) in the rotation direction of the central axis (21), and the thickness of the blade (22) gradually increases from the first side (221) to the second side (222).

Images