Swing arm gap adjusting structure of three-roller grinding machine

Abstract

The utility model discloses a swing arm gap adjusting structure of a three-roller grinding machine, which comprises a machine frame, a swing arm adjusting mechanism, a swing arm adjusting mechanism and a swing arm adjusting mechanism, the roller assembly comprises a fixed roller arranged between the two supporting vertical plates and movable rollers arranged on the two sides of the fixed roller, and the fixed roller and the movable rollers are rotationally arranged between the two supporting vertical plates; and the swing arm assembly comprises a swing arm, one end of the top of the swing arm is rotationally arranged between the outer side plate and the supporting vertical plate through a fulcrum, and the shaft end of the movable roller penetrates through the supporting vertical plate to be rotationally connected with the swing arm. According to the swing arm gap adjusting structure of the three-roller grinding machine, the eccentric wheel of the driving motor is matched with the limiting bearing of the top wheel, so that the eccentric wheel can reversely move under the resistance of the limiting bearing, the swing arm can swing left and right around the fulcrum, and the position of the middle part of the swing arm is changed; the gap between the movable roller and the fixed roller is adjusted, the adjusting mode is simple, and operation is easy.

Description

Technical Field

[0001] The utility model belongs to the technical field of three-roller grinders, in particular to a swing arm clearance adjustment structure of a three-roller grinder. Background Art

[0002] Three-roll mill is called three-roll mill for short. Three-roll mill can be divided into two types: experimental three-roll mill and production three-roll mill. Three-roll mill is suitable for the manufacture of slurries such as paint, ink, pigment, plastic, etc. Working principle of three-roll mill: Three-roll mill achieves grinding effect through mutual extrusion of the surfaces of three horizontal rollers and friction at different speeds. Three-roll mill is the most effective grinding and dispersing equipment for high-viscosity materials.

[0003] In order to be applicable to grinding of materials with various precision requirements, three-roller grinders are generally designed with adjustable roller spacing. Since the interval between the three rollers of the three-roller mill is very small, it is difficult to accurately control the spacing between the rollers, and the adjustment means of the existing technology are too complicated, so further improvements are made. Utility Model Content

[0004] The utility model aims to provide a swing arm gap adjustment structure for a three-roller grinding machine to solve the technical problems raised in the background technology.

[0005] To achieve the above purpose, the specific technical solution of the utility model is as follows: A swing arm gap adjustment structure of a three-roller grinding machine, comprising:

[0006] A frame, comprising a base and a supporting vertical plate symmetrically mounted on the top of the base;

[0007] The roller assembly comprises a fixed roller arranged between two supporting vertical plates and movable rollers arranged on both sides of the fixed roller, wherein the fixed roller and the movable roller are both rotatably arranged between the two supporting vertical plates;

[0008] The fixing assembly comprises fixing seats installed at both ends of the two supporting vertical plates, the two shaft ends of the fixing roller are rotatably connected to the two fixing seats; and an outer plate fixed to the outer sides of the two fixing seats;

[0009] The swing arm assembly comprises a swing arm, one end of the top of the swing arm is rotatably arranged between the outer plate and the supporting vertical plate through a fulcrum, the shaft end of the movable roller passes through the supporting vertical plate and is rotatably connected to the swing arm; and a driving assembly arranged on the supporting vertical plate, the driving assembly is used to adjust the rotation angle of the swing arm to adjust the gap between the movable roller and the fixed roller;

[0010] The driving assembly includes a driving motor arranged on the inner side of the supporting vertical plate, the output end of the driving motor is connected to an eccentric wheel; and a top wheel fixing arm fixed to the bottom of one side of the supporting vertical plate, the top rotation of the top wheel fixing arm is provided with a top wheel limiting bearing, and the top wheel limiting bearing is tangent to the eccentric wheel.

[0011] Preferably, a hole matching the fulcrum is provided at the top of the swing arm.

[0012] Preferably, a mounting block is fixedly connected to the bottom of one side of the swing arm, and the output shaft end of the drive motor is rotatably connected to the inside of the mounting block.

[0013] Preferably, the bottoms of both sides of the supporting vertical plate are provided with slots for the driving motor to deviate.

[0014] The swing arm clearance adjustment structure of a three-roller grinding machine of the utility model has the following advantages:

[0015] The swing arm gap adjustment structure of a three-roller grinding machine can make the eccentric wheel of the driving motor cooperate with the limit bearing of the top wheel so that the eccentric wheel can move in the opposite direction under the resistance of the limit bearing, so that the swing arm can swing left and right around the fulcrum, thereby changing the position of the middle part of the swing arm, realizing the gap adjustment between the movable roller and the fixed roller, and the adjustment method is simple and easy to operate. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the technical solution of the implementation mode of the utility model, the drawings required for use in the implementation mode will be briefly introduced below. It should be understood that the following drawings only show certain embodiments of the utility model and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other relevant drawings can be obtained based on these drawings without paying creative work.

[0017] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0018] Figure 2 This is a schematic diagram of the first partial explosion structure of the utility model;

[0019] Figure 3 For this utility model Figure 2 A partial enlarged view of

[0020] Figure 4 This is a schematic diagram of a second partial explosion structure of the utility model;

[0021] Figure 5 It is a structural schematic diagram of the frame of the utility model.

[0022] Explanation of marks in the figure: 101, base; 102, supporting vertical plate; 201, fixed roller; 202, movable roller; 301, fixed seat; 302, outer plate; 401, swing arm; 402, fulcrum; 403, driving motor; 404, eccentric wheel; 405, top wheel fixing force arm; 406, top wheel limiting bearing; 407, mounting block. DETAILED DESCRIPTION

[0023] In the following, only some exemplary embodiments are briefly described. As those skilled in the art will appreciate, the described embodiments may be modified in various ways without departing from the spirit or scope of the embodiments of the present invention. Therefore, the drawings and descriptions are considered to be exemplary and non-restrictive in nature.

[0024] In the description of the embodiments of the present invention, it should be understood that the terms "length", "vertical", "horizontal", "top", "bottom", etc. indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing the embodiments of the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the embodiments of the present invention.

[0025] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the embodiments of the present utility model, the meaning of "multiple" is two or more, unless otherwise clearly and specifically defined.

[0026] In the embodiments of the present utility model, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection, an electrical connection, or a communication; it can be a direct connection, or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the embodiments of the present utility model can be understood according to specific circumstances.

[0027] The disclosure below provides many different embodiments or examples for realizing different structures of the embodiments of the present utility model. In order to simplify the disclosure of the embodiments of the present utility model, the components and settings of specific examples are described below. Of course, they are only examples, and the purpose is not to limit the embodiments of the present utility model. In addition, the embodiments of the present utility model can repeat reference numbers and / or reference letters in different examples, and this repetition is for the purpose of simplification and clarity, and does not itself indicate the relationship between the various embodiments and / or settings discussed.

[0028] In order to better understand the purpose, structure and function of the utility model, the following is a further detailed description of the swing arm gap adjustment structure of the three-roller grinding machine of the utility model in conjunction with the accompanying drawings.

[0029] like Figure 1-5 As shown, the utility model is a swing arm gap adjustment structure of a three-roller grinding machine, comprising:

[0030] The frame includes a base 101 and a support vertical plate 102 symmetrically installed on the top of the base 101; the roller assembly includes a fixed roller 201 arranged between the two support vertical plates 102 and movable rollers 202 arranged on both sides of the fixed roller 201, and the fixed roller 201 and the movable roller 202 are both rotatably arranged between the two support vertical plates 102;

[0031] In this embodiment, the support vertical plate 102 is mainly used to support the fixed roller 201 and the movable roller 202, and a slot for the fixed roller 201 to pass through is set in the middle of the top of the support vertical plate 102, and slots for the movable roller 202 to move are set on both sides of the support vertical plate 102.

[0032] The fixing assembly includes a fixing seat 301 installed at both ends of the two supporting vertical plates 102, the two shaft ends of the fixing roller 201 are rotatably connected to the two fixing seats 301; and an outer plate 302 fixed to the outer sides of the two fixing seats 301;

[0033] In this embodiment, the fixing seat 301 is used to limit the position of the shaft end of the fixing roller 201 so that the fixing shaft maintains a constant position.

[0034] The swing arm assembly includes a swing arm 401, one end of the top of the swing arm 401 is rotatably arranged between the outer plate 302 and the support vertical plate 102 through a fulcrum 402, and a hole matching the fulcrum 402 is opened at the top of the swing arm 401. The shaft end of the movable roller 202 passes through the support vertical plate 102 and is rotatably connected to the swing arm 401; and a driving assembly arranged on the support vertical plate 102, the driving assembly is used to adjust the rotation angle of the swing arm 401 so as to adjust the gap between the movable roller 202 and the fixed roller 201; the driving assembly includes a driving motor 403 arranged on the inner side of the support vertical plate 102, a mounting block 407 is fixedly connected to the bottom of one side of the swing arm 401, and the output shaft end of the driving motor 403 is rotatably connected to the inside of the mounting block 407. The bottom of both sides of the support vertical plate 102 is provided with slots for the drive motor 403 to deviate, and the output end of the drive motor 403 is connected to the eccentric wheel 404; and a top wheel fixing arm 405 is fixed to the bottom of one side of the support vertical plate 102, and the top of the top wheel fixing arm 405 is rotatably provided with a top wheel limit bearing 406, and the top wheel limit bearing 406 is tangent to the eccentric wheel 404.

[0035] In this embodiment, the driving assembly is mainly used to drive the lower end of the swing arm 401 to move left and right, so that the swing arm 401 can swing left and right around the fulcrum 402, thereby changing the position of the middle part of the swing arm 401, and realizing the gap adjustment between the movable roller 202 and the fixed roller 201. The specific implementation principle is as follows:

[0036] That is, the driving motor 403 drives the eccentric wheel 404 to rotate. When the eccentric wheel 404 rotates, when the recessed position where the eccentric wheel 404 contacts the limit bearing gradually becomes a non-recessed position, it will move in the opposite direction due to the resistance of the limit bearing, so that the swing arm 401 can swing around the fulcrum 402, and the gap between the movable roller 202 and the fixed roller 201 can be adjusted by utilizing the lever principle of the swing arm 401.

[0037] It is understood that the present invention is described by some embodiments, and those skilled in the art are aware that various changes or equivalent substitutions may be made to these features and embodiments without departing from the spirit and scope of the present invention. In addition, under the teachings of the present invention, these features and embodiments may be modified to adapt to specific circumstances and materials without departing from the spirit and scope of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed herein, and all embodiments falling within the scope of the claims of this application are within the scope of protection of the present invention.

Claims

1. A swing arm clearance adjustment structure for a three-roller grinding machine, characterized in that: include: The frame comprises a base (101) and a supporting vertical plate (102) symmetrically mounted on the top of the base (101); A roller assembly comprises a fixed roller (201) arranged between two supporting vertical plates (102) and movable rollers (202) arranged on both sides of the fixed roller (201), wherein the fixed roller (201) and the movable roller (202) are both rotatably arranged between the two supporting vertical plates (102); The fixing assembly comprises fixing seats (301) installed at both ends of the two supporting vertical plates (102), and the two shaft ends of the fixing roller (201) are rotatably connected to the two fixing seats (301); and an outer plate (302) fixed on the outer sides of the two fixing seats (301); A swing arm assembly comprises a swing arm (401), wherein one end of the top of the swing arm (401) is rotatably arranged between an outer plate (302) and a supporting vertical plate (102) via a fulcrum (402), and an axial end of the movable roller (202) passes through the supporting vertical plate (102) and is rotatably connected to the swing arm (401); and a driving assembly arranged on the supporting vertical plate (102), wherein the driving assembly is used to adjust the rotation angle of the swing arm (401) to adjust the gap between the movable roller (202) and the fixed roller (201); The driving assembly comprises a driving motor (403) arranged on the inner side of the supporting vertical plate (102), the output end of the driving motor (403) being connected to an eccentric wheel (404); and a top wheel fixing arm (405) fixed to the bottom of one side of the supporting vertical plate (102), the top of the top wheel fixing arm (405) being rotatably provided with a top wheel limiting bearing (406), and the top wheel limiting bearing (406) being tangent to the eccentric wheel (404).

2. The swing arm gap adjustment structure of a three-roller grinding machine according to claim 1, characterized in that: A hole matching the fulcrum (402) is provided at the top of the swing arm (401).

3. The swing arm gap adjustment structure of a three-roller grinding machine according to claim 1, characterized in that: A mounting block (407) is fixedly connected to the bottom of one side of the swing arm (401), and the output shaft end of the drive motor (403) is rotatably connected to the inside of the mounting block (407).

4. The swing arm gap adjustment structure of a three-roller grinding machine according to claim 1, characterized in that: The bottoms of both sides of the supporting vertical plate (102) are provided with slots for the driving motor (403) to deviate.

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