Dustproof device for discharge door of internal mixer

Abstract

The utility model relates to the field of internal mixers, and discloses a dustproof device for a discharge door of an internal mixer, which comprises a workbench, the top end of the outer wall of the workbench is fixedly connected with a fixed plate, the outer wall of the fixed plate is fixedly connected with an air cylinder, and the inner wall of the air cylinder is slidably connected with a telescopic rod. A discharging door A is fixedly connected to the end, away from the air cylinder, of the telescopic rod, two guide rods are fixedly connected to the outer wall of the fixing plate, a guide block is fixedly connected to the top end of the outer wall of the cleaning sleeve, a pressing block is elastically connected to the inner wall of the guide block through a limiting spring, and a moving plate is slidably connected to the inner wall of the discharging door A. According to the stirring device, residual materials on the surface of the stirring shaft can be possibly left in gaps in the surface of the stirring shaft after the stirring shaft is stirred for a long time, the outer wall of the stirring shaft can be shielded through the cleaning sleeve when cleaning is inconvenient, self-cleaning is achieved through rotation of the stirring shaft, and meanwhile the cleaning sleeve can be conveniently replaced and cleaned through the detachable fixing sleeve.

Description

Technical Field

[0001] The utility model relates to the field of internal mixers, in particular to a dust prevention device for a discharge door of an internal mixer. Background Art

[0002] Internal mixer is a machine with a pair of relatively rotating rotors of a specific shape, which intermittently plasticizes and mixes polymer materials in a closed state with adjustable temperature and pressure. It is mainly used for plasticizing and mixing rubber. When producing rubber products, internal mixer is used to mix, knead, crush, disperse, repolymerize and finally discharge the rubber raw materials, and then produce them into various rubber products.

[0003] During the use of the internal mixer, a mixing cavity is arranged on its surface, and the mixing cavity is arranged by splicing two sets of discharge doors together to form a mixing cavity to process the material.

[0004] When the internal mixer is in use, a stirring shaft is arranged inside it. When the material is processed and stirred by the stirring shaft, residual material will remain in the gaps on the surface of the stirring shaft, which is inconvenient to clean. In addition, most of the inner surfaces of the cavities formed by the discharge doors are not provided with shielding plates, which may cause dust to enter the mixing cavity along the cavity during the processing, resulting in unsatisfactory processing effect of the material. Therefore, a dust prevention device for the discharge door of the internal mixer is proposed to solve the above problems. Utility Model Content

[0005] In order to make up for the above shortcomings, the utility model provides a dust prevention device for a discharge door of an internal mixer, aiming to improve the problem in the prior art that residual material may remain in the gaps on the surface of the stirring shaft, which is inconvenient to clean.

[0006] In order to achieve the above-mentioned purpose, the utility model adopts the following technical scheme: a dust-proof device for the discharge door of an internal mixer, comprising a workbench, the top end of the outer wall of the workbench is fixedly connected to a fixed plate, the outer wall of the fixed plate is fixedly connected to a cylinder, the inner wall of the cylinder is slidably connected to a telescopic rod, the end of the telescopic rod away from the cylinder is fixedly connected to a discharge door A, the outer wall of the fixed plate is fixedly connected to two groups of guide rods, the ends of the two groups of guide rods away from the fixed plate are fixedly connected to the discharge door B, the outer wall of the discharge door B is rotatably connected to two groups of stirring shafts, the inner wall of the discharge door A is provided with a cleaning assembly, the cleaning assembly comprises a fixed sleeve, the inner wall of the fixed sleeve is slidably connected to a cleaning sleeve, the top end of the outer wall of the cleaning sleeve is fixedly connected to a guide block, the inner wall of the guide block is elastically connected to a pressing block through a limit spring, and the inner wall of the discharge door A is slidably connected to a movable plate.

[0007] As a further description of the above technical solution:

[0008] The top of the outer wall of the workbench is fixedly connected with a fixed column, the outer wall of the top of the fixed column is fixedly connected with an electric telescopic rod, the bottom end of the outer wall of the electric telescopic rod is fixedly connected with a die, the outer wall of the die is hinged with a hinged rod, and the end of the hinged rod away from the die is hinged with a baffle.

[0009] As a further description of the above technical solution:

[0010] The discharge door A is slidably connected to the surfaces of the two groups of guide rods, and the discharge door B is fixedly connected to the surface of the top of the workbench, and the outer walls of the discharge door A and the discharge door B are in contact.

[0011] As a further description of the above technical solution:

[0012] The fixing sleeve is detachably mounted on the inner wall of the discharge door A by means of bolts, and the guide block is slidably connected to the inner wall of the fixing sleeve.

[0013] As a further description of the above technical solution:

[0014] One end of the limit spring is fixedly connected to the inner wall of the guide block, and the other end of the limit spring is fixedly connected to the outer wall of the push block.

[0015] As a further description of the above technical solution:

[0016] The push block is slidably connected to the inner wall of the guide block, the inner wall of the fixing sleeve is provided with two groups of through holes, and the bottom end of the outer wall of the push block is plugged into the inner wall of the through hole.

[0017] As a further description of the above technical solution:

[0018] The cleaning sleeve penetrates through and is slidably connected to the inner wall of the discharge door A, and the inner side wall of the cleaning sleeve is in contact with the outer wall of the stirring shaft.

[0019] As a further description of the above technical solution:

[0020] The bottom end of the outer wall of the baffle is slidably connected to the inner wall at the top end of the discharge door B, and the bottom end of the outer wall of the baffle is in contact with the top end of the outer wall of the discharge door A.

[0021] The utility model has the following beneficial effects:

[0022] 1. In the utility model, by setting a cleaning component, when the stirring shaft is stirred for a long time, residual materials may remain in the gaps on its surface. When cleaning is inconvenient, the outer wall can be covered by the cleaning sleeve to achieve self-cleaning through the rotation of the stirring shaft. At the same time, the fixing sleeve can be detachable to facilitate the replacement and cleaning of the cleaning sleeve.

[0023] 2. In the utility model, a baffle is provided at the top of the discharge door B, and the baffle can be automatically closed or opened during the up and down movement of the die. When the material needs to be pressed, the baffle will automatically open, and when the material does not need to be pressed, the baffle will be closed to prevent dust from entering the cavity. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 This is an overall three-dimensional schematic diagram of a dust prevention device for a discharging door of an internal mixer proposed by the utility model;

[0025] Figure 2 It is a partial cross-sectional schematic diagram of a workbench of a dust prevention device for a discharge door of an internal mixer proposed by the utility model;

[0026] Figure 3 This is a schematic diagram of the separation state of the discharge door A and the discharge door B of the dust prevention device for the discharge door of the internal mixer proposed by the utility model;

[0027] Figure 4 This is a schematic diagram of a separation state of a moving plate and a discharge door A of a dust prevention device for a discharge door of an internal mixer proposed by the utility model;

[0028] Figure 5 The utility model discloses a partial cross-sectional schematic diagram of a guide block of a dust prevention device for a discharge door of an internal mixer.

[0029] Legend:

[0030] 1. Workbench; 2. Fixed plate; 3. Cylinder; 4. Guide rod; 5. Telescopic rod; 6. Discharge door A; 7. Discharge door B; 8. Fixed column; 9. Electric telescopic rod; 10. Pressing die; 11. Articulated rod; 12. Baffle; 13. Cleaning assembly; 131. Fixed sleeve; 132. Moving plate; 133. Cleaning sleeve; 134. Guide block; 135. Limit spring; 136. Press block; 14. Stirring shaft. DETAILED DESCRIPTION

[0031] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0032] Reference Figure 1-Figure 3The utility model provides an embodiment: a dust prevention device for the discharge door of an internal mixer, comprising a workbench 1, a fixed plate 2 is fixedly connected to the top of the outer wall of the workbench 1, a cylinder 3 is fixedly connected to the outer wall of the fixed plate 2, a telescopic rod 5 is slidably connected to the inner wall of the cylinder 3, the cylinder 3 is controlled by an electric unit to start, so that it pushes the telescopic rod 5 to open or close the discharge door A6, and the end of the telescopic rod 5 away from the cylinder 3 is fixedly connected to the discharge door A6, and the outer walls of the discharge door A6 and the discharge door B7 are in contact, and the contact between the two is from The discharge door A6 and the discharge door B7 are spliced ​​together to form a cavity, so that the material can be precisely processed. The outer wall of the fixed plate 2 is fixedly connected with two groups of guide rods 4, and the two groups of guide rods 4 are fixedly connected with the discharge door B7 at one end away from the fixed plate 2. The discharge door A6 is slidably connected to the surface of the two groups of guide rods 4. When the discharge door A6 is moved forward and backward by the telescopic rod 5, the guide rod 4 guides the moving position of the discharge door A6 to avoid deviation during the movement. The discharge door B7 is fixedly connected to the surface of the top of the workbench 1.

[0033] Reference Figure 3 and Figure 4 The outer wall of the discharge door B7 is rotatably connected with two sets of stirring shafts 14. The stirring shafts 14 are prior art and are controlled to rotate by an electric control module, so as to stir the materials in the cavity formed by the discharge door A6 and the discharge door B7. The inner wall of the discharge door A6 is provided with a cleaning assembly 13. The cleaning assembly 13 includes a fixing sleeve 131. The fixing sleeve 131 is detachably mounted on the inner wall of the discharge door A6 by bolts. When the cleaning sleeve 133 inside the discharge door A6 needs to be cleaned, the fixing sleeve 133 can be removed by bolts. 131 is disassembled as a whole from the outer wall of the discharge door A6. The inner wall of the fixed sleeve 131 is slidably connected with a cleaning sleeve 133. A cleaning brush is arranged inside the cleaning sleeve 133, which is a prior art. The surface of the stirring shaft 14 can be cleaned by the brush inside it, so as to prevent the material from being adsorbed in the guide groove on its surface, which is troublesome and inconvenient during subsequent cleaning. The cleaning sleeve 133 passes through and is slidably connected to the inner wall of the discharge door A6, and the inner side wall of the cleaning sleeve 133 is in contact with the outer wall of the stirring shaft 14.

[0034] Reference Figure 4 and Figure 5The top of the outer wall of the cleaning sleeve 133 is fixedly connected with a guide block 134, and a guide groove is opened at the top of the fixed sleeve 131. The guide block 134 moves back and forth on the inner wall of the guide groove, so that the cleaning sleeve 133 can be driven to move synchronously with it. The guide block 134 is slidably connected to the inner wall of the fixed sleeve 131, and the inner wall of the guide block 134 is elastically connected with a pressing block 136 through a limiting spring 135. One end of the limiting spring 135 is fixedly connected to the inner wall of the guide block 134, and the other end of the limiting spring 135 is fixedly connected to the outer wall of the pressing block 136. The setting of the limiting spring 135 can The moving position of 136 is reset, the push block 136 is slidably connected to the inner wall of the guide block 134, the inner wall of the fixed sleeve 131 is provided with two sets of through holes, the bottom end of the outer wall of the push block 136 is plugged into the inner wall of the through hole, and the plugging between the two fixes the cleaning sleeve 133 in the position where it is moved, unfolded or stored on the inner wall of the fixed sleeve 131, and the inner wall of the unloading door A6 is slidably connected with a moving plate 132. By setting the moving plate 132, the position of the unloading door A6 corresponding to the cleaning sleeve 133 can be blocked, thereby preventing the material from entering the inner wall of the cleaning sleeve 133 during the processing.

[0035] Reference Figure 2-Figure 3 The top of the outer wall of the workbench 1 is fixedly connected with a fixed column 8, and the outer wall of the top of the fixed column 8 is fixedly connected with an electric telescopic rod 9. The electric telescopic rod 9 is a prior art, and the material inside the discharge door A6 can be pressed by controlling the descent of the die 10, so that the stirring shaft 14 can operate better. The bottom end of the outer wall of the electric telescopic rod 9 is fixedly connected with the die 10, and the outer wall of the die 10 is hinged with a hinged rod 11. The end of the hinged rod 11 away from the die 10 is hinged with a baffle 12. When the die 10 descends, The baffle 12 is pushed outward on the inner wall of the discharge door B7 by the hinged rod 11, thereby canceling the obstruction of the discharge door A6. The bottom end of the outer wall of the baffle 12 is slidably connected to the inner wall at the top of the discharge door B7. The bottom end of the baffle 12 is slidably connected to the inner wall at the top of the discharge door B7 and cannot be separated from its inner wall and can only move forward and backward. The bottom end of the outer wall of the baffle 12 is in contact with the top of the outer wall of the discharge door A6. The inner wall of the discharge door A6 is blocked by the baffle 12, thereby preventing dust from falling into it during the processing.

[0036] Working principle: After the material processing is completed, when the surface of the stirring shaft 14 is attached with the material stirred last time, the cylinder 3 is first started to move the discharge door A6 on the surface of the guide rod 4, so that the discharge door A6 and the discharge door B7 are spliced. At this time, the guide block 134 on the surface of the fixed sleeve 131 on the outer wall of the discharge door A6 can be grasped, and the pressing block 136 can be moved on the inner wall of the guide block 134, so that the pressing block 136 is separated from the through hole of the current position of the fixed sleeve 131, and the cleaning sleeve 133 is moved outward on the inner wall of the fixed sleeve 131, and the moving plate 132 is pulled to open upward on the inner wall of the discharge door A6, so as to open the empty slot of the cleaning sleeve 133. At this time, the cleaning sleeve 133 is moved to Let it contact the outer wall of the stirring shaft 14, and when it moves into place, release the button 136, which will be affected by the elastic action of the limit spring 135 and return to its original position, so that the button 136 can be plugged into the through hole of the current position of the fixed sleeve 131, thereby fixing the position of the cleaning sleeve 133. At this time, the stirring shaft 14 can be started to rotate on the inner wall of the cleaning sleeve 133, and the brush on the inner wall of the cleaning sleeve 133 can be used to clean the surface of the stirring shaft 14. After the cleaning is completed, when the cleaning sleeve 133 needs to be replaced, the bolts at the fixed sleeve 131 and the discharge door A6 can be removed by special tools to drive the cleaning sleeve 133 to be disassembled by the fixed sleeve 131, so as to facilitate its replacement.

[0037] At the same time, when the material is being processed, its top will be blocked by the baffle 12 to prevent dust from entering the cavity formed by the discharge door A6 and the discharge door B7. When the die 10 is lowered by the electric telescopic rod 9 to press the material, the baffle 12 will be pushed outward at the top of the discharge door B7 through the hinged rod 11, so that it can be opened automatically, so that the baffle 12 can be automatically opened during the rising and falling process of the die 10.

[0038] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A dust prevention device for a discharge door of an internal mixer, comprising a workbench (1), characterized in that: The top end of the outer wall of the workbench (1) is fixedly connected to a fixed plate (2), the outer wall of the fixed plate (2) is fixedly connected to a cylinder (3), the inner wall of the cylinder (3) is slidably connected to a telescopic rod (5), the end of the telescopic rod (5) away from the cylinder (3) is fixedly connected to a discharge door A (6), the outer wall of the fixed plate (2) is fixedly connected to two groups of guide rods (4), the ends of the two groups of guide rods (4) away from the fixed plate (2) are fixedly connected to a discharge door B (7), the outer wall of the discharge door B (7) is rotatably connected to two groups of stirring shafts (14), and the inner wall of the discharge door A (6) is provided with a cleaning assembly (13), and the cleaning assembly (13) comprises a fixed sleeve (131); The inner wall of the fixed sleeve (131) is slidably connected to a cleaning sleeve (133), the top end of the outer wall of the cleaning sleeve (133) is fixedly connected to a guide block (134), the inner wall of the guide block (134) is elastically connected to a pressing block (136) via a limit spring (135), and the inner wall of the discharge door A (6) is slidably connected to a moving plate (132).

2. The dust prevention device for the discharge door of an internal mixer according to claim 1, characterized in that: The top end of the outer wall of the workbench (1) is fixedly connected to a fixed column (8), the outer wall at the top end of the fixed column (8) is fixedly connected to an electric telescopic rod (9), the bottom end of the outer wall of the electric telescopic rod (9) is fixedly connected to a die (10), the outer wall of the die (10) is hingedly connected to a hinged rod (11), and the end of the hinged rod (11) away from the die (10) is hingedly connected to a baffle (12).

3. The dust prevention device for the discharge door of an internal mixer according to claim 1, characterized in that: The discharge door A (6) is slidably connected to the surfaces of the two sets of guide rods (4), and the discharge door B (7) is fixedly connected to the surface of the top end of the workbench (1), and the outer walls of the discharge door A (6) and the discharge door B (7) are in contact with each other.

4. The dust prevention device for the discharge door of an internal mixer according to claim 1, characterized in that: The fixing sleeve (131) is detachably mounted on the inner wall of the discharge door A (6) by means of bolts, and the guide block (134) is slidably connected to the inner wall of the fixing sleeve (131).

5. The dust prevention device for the discharge door of an internal mixer according to claim 1, characterized in that: One end of the limit spring (135) is fixedly connected to the inner wall of the guide block (134), and the other end of the limit spring (135) is fixedly connected to the outer wall of the push block (136).

6. The dust prevention device for the discharge door of an internal mixer according to claim 1, characterized in that: The push block (136) is slidably connected to the inner wall of the guide block (134); the inner wall of the fixing sleeve (131) is provided with two groups of through holes; the bottom end of the outer wall of the push block (136) is plugged into the inner wall of the through hole.

7. The dust prevention device for the discharge door of an internal mixer according to claim 1, characterized in that: The cleaning sleeve (133) passes through and is slidably connected to the inner wall of the discharge door A (6), and the inner side wall of the cleaning sleeve (133) is in contact with the outer wall of the stirring shaft (14).

8. The dust prevention device for the discharge door of an internal mixer according to claim 2, characterized in that: The bottom end of the outer wall of the baffle plate (12) is slidably connected to the inner wall at the top end of the discharge door B (7), and the bottom end of the outer wall of the baffle plate (12) is in contact with the top end of the outer wall of the discharge door A (6).

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