Connecting structure for ram and push rod of internal mixer

Abstract

The utility model belongs to the technical field of connecting structures, and discloses a connecting structure for a ram and a push rod of an internal mixer. Comprising a ram, a push rod, a corrugated rubber pipe, a sealing gland and a chuck, one end of the push rod is connected with the ram, and the push rod drives the ram to move up and down and applies pressure to the ram in contact with materials; one end of the corrugated rubber pipe is sleeved outside the push rod, and the other end is connected to the sealing gland; the sealing gland is arranged above the chuck and is in threaded connection with the chuck; and the chuck is screwed with the ram into a whole. The end of the push rod is of a spherical structure, the contact face of the end and the ram is a plane, and the side face of the end is spherical. The circumferential gap between the push rod and the chuck is larger than that between the ram and the inner wall of the hopper. And the corrugated rubber pipe and the sealing gland effectively seal the ball head part of the push rod to ensure flexible operation of the ram.

Description

Technical Field

[0001] This utility model relates to the field of connection structure technology, specifically to a connection structure between a pressure roller and a push rod in a mixer. Background Technology

[0002] The pressure roller is a core component of the internal mixer. During operation, it needs to be raised and lowered multiple times by push rods to apply pressure to the material in order to improve the mixing efficiency and quality of the internal mixer.

[0003] Material flow is the primary condition and mode of operation for internal mixers. This flow (generally counterclockwise) causes the pressure roller to exhibit significant planar oscillation and vertical vibration during operation. In traditional structures, the pressure roller and push rod are connected by a horizontal pin. While this structure meets the basic requirements for lifting and vertical vibration, it is difficult to eliminate the planar impact force generated by the material flow pushing the pressure roller to oscillate. This can easily lead to serious accidents such as the horizontal pin breaking or the pressure roller falling into the internal mixer and damaging core components like the rotor. Utility Model Content

[0004] The purpose of this invention is to provide a novel, practical and reliable connection structure for the internal mixer's pressure bar and push rod, which is perfectly suited to the working characteristics of the internal mixer and reduces the failure rate of the internal mixer.

[0005] The technical solution of this utility model is as follows: A connection structure between a weight and a push rod of an internal mixer includes a weight 1, a push rod 2, a corrugated hose 3, a sealing cap 4, and a chuck 5; one end of the push rod 2 is connected to the weight 1, and the push rod 2 drives the weight 1 to move up and down, and applies pressure to the weight 1 in contact with the material; one end of the corrugated hose 3 is sleeved on the outside of the push rod 2, and the other end is connected to the sealing cap 4; the sealing cap 4 is above the chuck 5, and the two are screwed together; the chuck 5 is screwed to the weight 1 as a whole.

[0006] The end of the push rod 2 has a spherical structure, the contact surface between the end and the pressure plate 1 is flat, and the side of the end is spherical.

[0007] The circumferential clearance between push rod 2 and chuck 5 is greater than the circumferential clearance between pressure weight 1 and inner wall of hopper.

[0008] The corrugated hose 3 and the sealing cap 4 effectively seal the ball head of the push rod 2, ensuring the smooth operation of the pressure weight 1.

[0009] The beneficial effects of this invention are as follows: The pressure roller 1 and the push rod 2 adopt a spherical connection structure, allowing the pressure roller 1 to swing arbitrarily relative to the push rod 2 in the circumferential direction. Furthermore, since the gap A shown in the diagram is greater than the gap B, the swing range of the pressure roller 1 is less than that between the push rod 2 and the gap, and the swing of the pressure roller 1 will not subject the push rod 2 to additional force. Additionally, although the internal mixer produces a large amount of dust and fumes during operation, the multiple seals designed in this structure prevent the accumulation and solidification of powder, oil, or other materials within the space of gap A, ultimately ensuring the flexible movement, operational stability, and reliability of the structure. Attached Figure Description

[0010] Figure 1 This utility model relates to the connection structure between the internal mixer's pressure bar and the push rod.

[0011] Figure 2 It is the connection structure between the traditional internal mixer's pressure bar and push rod.

[0012] In the diagram: 1-pressure weight; 2-push rod; 3-corrugated hose; 4-sealing cap; 5-chuck; 6-horizontal pin; 7-plug. Detailed Implementation

[0013] The present invention will be further described below with reference to the accompanying drawings.

[0014] A connection structure between a weight and a push rod in an internal mixer includes a weight 1, a push rod 2, a corrugated hose 3, a sealing cap 4, and a chuck 5.

[0015] One end of the push rod 2 is connected to the pressure roller 1. The push rod 2 drives the pressure roller 1 to move up and down and applies pressure to the pressure roller 1 that is in contact with the material. One end of the corrugated rubber tube 3 is sleeved on the outside of the push rod 2, and the other end is connected to the sealing cover 4. The sealing cover 4 is above the chuck 5, and the two are screwed together. The chuck 5 is screwed to the pressure roller 1 as a whole.

[0016] The end of the push rod 2 has a spherical structure, the contact surface between the end and the pressure plate 1 is flat, and the side of the end is spherical.

[0017] The pressure weight 1 is connected to the push rod 2. The push rod 2 drives the pressure weight 1 to move up and down and can apply pressure to it.

[0018] Circumferential clearance between push rod 2 and chuck 5 Figure 1 The value of A in the figure is greater than the gap between the weight 1 and the inner wall of the hopper. Figure 1 (The B value in the text).

[0019] The corrugated hose 3 and the sealing cap 4 can effectively seal the ball head of the push rod 2, ensuring the smooth operation of the pressure weight.

[0020] Existing methods for detecting the position of the top bolt on an internal mixer include: Figure 2The pressure roller 1 and push rod 2 are connected by a cross pin 6. After installing the cross pin 6, screw the plug 7 into the corresponding position on the pressure roller 1 to prevent the cross pin from coming out. When the internal mixer is working, the material will push the pressure roller 1 to produce violent swinging, which often leads to the breakage of the cross pin 6.

Claims

1. A connection structure between the pressure roller and the push rod of an internal mixer, characterized in that, It includes a pressure roller (1), a push rod (2), a corrugated hose (3), a sealing cap (4), and a chuck (5); one end of the push rod (2) is connected to the pressure roller (1), and the push rod (2) drives the pressure roller (1) to move up and down and applies pressure to the pressure roller (1) in contact with the material; one end of the corrugated hose (3) is sleeved on the outside of the push rod (2), and the other end is connected to the sealing cap (4); the sealing cap (4) is above the chuck (5), and the two are screwed together; the chuck (5) is screwed to the pressure roller (1) as a whole.

2. The connection structure between the internal mixer's pressure bar and the push rod according to claim 1, characterized in that, The end of the push rod (2) is a spherical structure, the contact surface between the end and the pressure plate (1) is a plane, and the side of the end is spherical.

3. The connection structure between the internal mixer's pressure roller and push rod according to claim 1, characterized in that, The circumferential clearance between the push rod (2) and the chuck (5) is greater than the circumferential clearance between the pressure roller (1) and the inner wall of the hopper.

4. The connection structure between the internal mixer's pressure bar and the push rod according to claim 1, characterized in that, The corrugated hose (3) and the sealing cap (4) effectively seal the ball head of the push rod (2), ensuring that the pressure weight (1) operates flexibly.

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