Vacuum kneader with anti-blocking structure

Abstract

The utility model discloses a vacuum kneader with prevent stifled structure belongs to vacuum kneader field. The device includes two stirring rods of rotation setting in the kneader body inside, and the meshing of mobile gear and stirring gear wheel can drive rotation directly between two stirring rods, and mobile gear can move, and the meshing of mobile gear and synchronous wheel, the rotation between two stirring rods realizes the rotation of same direction through synchronous wheel, and can drive the scraping of stirring rod on the surface of kneader body inner wall when the rotation of same direction, and drives the material of sticking of kneader body inner wall to move, and guarantees that the material of sticking on the inner wall can separate from the kneader body, and completes material discharge, and sets up the eccentric wheel of rotation in the processing table inside, and the rotation of eccentric wheel can drive the reciprocating movement of kneader body, and realizes the scraping of sticking material of kneader body inner wall through the rotation of same direction of original stirring rod, and the vibration of combination, and it is convenient for quick discharge, and avoid the material to accumulate on the surface of stirring rod, and keep the discharge speed.

Description

Technical Field

[0001] This utility model relates to the field of vacuum kneaders, and in particular to a vacuum kneader with an anti-clogging structure. Background Technology

[0002] A vacuum kneader is a key piece of equipment widely used for mixing, kneading, and degassing high-viscosity, heat-sensitive materials (such as silicone rubber, sealant, food paste, etc.); it generally includes a tank, opposing rotating stirring rods, and a vacuum pump.

[0003] Existing vacuum kneaders generally employ either tilting discharge or screw extrusion discharge. Tilting discharge typically involves rotating the tank and lifting the sealing cap with a cylinder. After rotating the tank to a certain angle, the material slides out under gravity. However, during tilting discharge, some high-viscosity materials tend to adhere to the inner wall or edges of the tank during kneading. Due to insufficient weight or strong adhesion, these materials are difficult to detach during tilting, resulting in material waste and requiring subsequent manual cleaning. Current solutions primarily involve heating the tank to maintain material flowability or using a vibration structure to accelerate material discharge. However, relying solely on heating or vibration cannot guarantee complete detachment of all materials. Some high-viscosity materials may remain on the tank surface, requiring prolonged tilting or manual cleaning to remove all material. Furthermore, material may accumulate on the mixing rod during tilting, causing blockages and reducing discharge speed.

[0004] In summary, existing vacuum kneaders, which rely on heating and vibration to assist in the discharge process, have the problem of difficulty in ensuring complete material separation and the potential for material to accumulate on the surface of the mixing rod, causing blockages and affecting the discharge speed. Utility Model Content

[0005] This invention provides a vacuum kneader with an anti-clogging structure, which can solve the problem in the prior art that in the process of pouring and discharging material in a vacuum kneader, heating and vibration are used to assist in discharging, but it is difficult to ensure that the material is completely separated, and the material can accumulate on the surface of the mixing rod, causing blockage and affecting the discharge speed.

[0006] A vacuum kneader with an anti-clogging structure includes a kneader body rotatably mounted on a processing table surface, and an anti-clogging mechanism is provided between the processing table and the kneader body. The anti-clogging mechanism includes:

[0007] Two rotatable stirring rods are rotatably disposed inside the kneading machine body, with the surface of the stirring rods in contact with the inner wall of the kneading machine body. Two synchronous pulleys are rotatably connected inside the kneading machine body, and a synchronous belt drives between the two synchronous pulleys. A stirring gear is fixedly connected to the end of one stirring rod, and a synchronous pulley is fixedly connected to the stirring gear. A moving gear is slidably connected to the end of the other stirring rod through a moving component, and the projections of the moving gear and the stirring gear mesh with each other. A locking component is provided between the other synchronous pulley and the moving gear.

[0008] The top of the kneading machine body is rotatably equipped with a sealing cover, and an eccentric wheel is rotatably connected inside the kneading machine body. The surface of the eccentric wheel is in contact with the kneading machine body, and a support assembly is provided between the kneading machine body and the processing table.

[0009] Optionally, the locking assembly includes a locking gear fixedly disposed at the end of the moving gear, the synchronous wheel surface is provided with an inner groove, and a plurality of inner teeth are fixedly connected inside the inner groove, the locking gear and the inner teeth meshing on the same side of the projection.

[0010] Optionally, a movable column is fixedly connected to the surface of the movable gear, and a movable groove is formed on the surface of the stirring rod, with the movable column and the movable groove being adapted to each other.

[0011] Optionally, the surface of the movable gear is provided with an annular groove, the cross-section of the annular groove is T-shaped, and a movable rod is slidably connected inside the kneading machine body, the movable rod being adapted to the annular groove.

[0012] Optionally, a movable spring is fitted onto the surface of the movable rod, with one end of the movable spring fixedly connected to the surface of the movable rod and the other end of the movable spring fixedly connected to the interior of the kneading machine body.

[0013] Optionally, a push rod is slidably connected to the surface of the kneading machine body. The cross-section of the push rod is a right-angled trapezoid, and the inclined surface of the push rod is in contact with the surface of the moving rod. An operating cylinder is fixedly connected to the surface of the kneading machine body, and the end of the piston rod inside the operating cylinder is fixedly connected to the surface of the push rod.

[0014] Optionally, the support assembly includes a support ring fixedly disposed on the surface of the processing table, the support ring having a through groove inside, and a support column fixedly connected to the surface of the kneading machine body, the support column being adapted to the through groove.

[0015] Optionally, two fitting blocks are slidably connected inside the support ring, and a vertical groove is opened on the surface of the support ring. The vertical groove is connected to the end of the through groove and the two are set perpendicularly. A connecting spring is fixedly connected between the fitting block and the vertical groove.

[0016] Optionally, a gradient block is fixedly connected to the surface of the bonding block, and a sliding groove is formed on the surface of the support ring. The sliding groove fits with the gradient block, and the gradient block communicates with the vertical groove.

[0017] Optionally, a plurality of worm gear teeth are fixedly connected to the surface of the kneading machine body, and a worm is rotatably connected inside the processing table, the worm meshing with the worm gear teeth.

[0018] This utility model provides a vacuum kneader with an anti-clogging structure, including two stirring rods rotatably disposed inside the kneader body. The two stirring rods are directly driven to rotate by the meshing of a moving gear and a stirring gear. The two stirring rods rotate in opposite directions, while the moving gear can move and mesh with a synchronous wheel. The rotation of the two stirring rods is achieved in the same direction through the synchronous wheel. When rotating in the same direction, the stirring rods can scrape the inner wall surface of the kneader body, moving the material adhering to the inner wall of the kneader body and further pushing the material to ensure that the material adhering to the inner wall can be detached from the kneader body, thus completing the material discharge. At the same time, a rotating eccentric wheel is set inside the processing table. The surface of the eccentric wheel is in contact with the kneader body. The rotation of the eccentric wheel can drive the kneader body to move back and forth, causing the kneader body to vibrate back and forth. The vibration further accelerates the material discharge. The original co-rotation of the stirring rods scrapes the material adhering to the inner wall of the kneader body, while simultaneously driving the material discharge. Combined with vibration, this facilitates rapid discharge and prevents material from accumulating on the surface of the stirring rods, maintaining the discharge speed. Attached Figure Description

[0019] Figure 1 A schematic diagram of a vacuum kneader with an anti-clogging structure provided by this utility model;

[0020] Figure 2 A three-dimensional sectional view of the stirring rod provided by this utility model;

[0021] Figure 3 Provided by this utility model Figure 1 Enlarged view of the local structure at point A;

[0022] Figure 4 An exploded three-dimensional view of the anti-blocking mechanism provided by this utility model;

[0023] Figure 5 Provided by this utility model Figure 4 Enlarged view of the local structure at point B.

[0024] Explanation of reference numerals in the attached figures:

[0025] 1. Kneading machine body; 2. Stirring rod; 3. Stirring gear; 4. Moving gear; 5. Synchronous pulley; 6. Synchronous belt; 7. Sealing cover; 8. Eccentric wheel; 9. Snap-fit ​​gear; 10. Inset tooth; 11. Moving column; 12. Moving groove; 13. Annular groove; 14. Moving rod; 15. Moving spring; 16. Push rod; 17. Support ring; 18. Support column; 19. Adhesive block; 20. Connecting spring; 21. Gradient block; 22. Worm gear. Detailed Implementation

[0026] The specific embodiments of this utility model are described in detail below, but it should be understood that the protection scope of this utility model is not limited to the specific embodiments.

[0027] like Figures 1 to 5 As shown in the figure, the present invention provides a vacuum kneader with an anti-clogging structure, comprising a kneader body 1 rotatably disposed on the surface of a processing table, wherein an anti-clogging mechanism is provided between the processing table and the kneader body 1, and the anti-clogging mechanism includes:

[0028] Two stirring rods 2 are rotatably mounted inside the kneading machine body 1, with their surfaces in contact with the inner wall of the kneading machine body 1. The two stirring rods 2 are symmetrically arranged relative to the kneading machine body 1. A stirring gear 3 is fixedly connected to the end of one stirring rod 2, and a moving gear 4 is slidably connected to the end of the other stirring rod 2. A moving component is provided between the moving gear 4 and the kneading machine body 1 to drive the moving gear 4. The projections of the moving gear 4 and the stirring gear 3 on the inner wall of the kneading machine body 1 mesh with each other. Two synchronous pulleys 5 are rotatably connected inside the kneading machine body 1, and a synchronous belt 6 is drivingly connected between the two synchronous pulleys 5. One synchronous pulley 5 is fixedly connected to the stirring gear 3, and a locking component is provided between the other synchronous pulley 5 and the moving gear 4.

[0029] A sealing cover 7 is rotatably mounted on the top of the kneading machine body 1. An eccentric wheel 8 is rotatably connected inside the kneading machine body 1. The surface of the eccentric wheel 8 is in contact with the kneading machine body 1. A support assembly is provided between the kneading machine body 1 and the processing table to support the position of the kneading machine body 1.

[0030] In summary, the vacuum kneader with an anti-clogging structure provided by this utility model embodiment includes two stirring rods 2 rotatably disposed inside the kneader body 1. The two stirring rods 2 can be directly driven to rotate by the meshing of a moving gear 4 and a stirring gear 3. The two stirring rods 2 rotate in opposite directions, and the moving gear 4 can move simultaneously, meshing with a synchronous wheel 5. The rotation between the two stirring rods 2 is achieved by the synchronous wheel 5 to rotate in the same direction. When rotating in the same direction, the stirring rods 2 can scrape against the inner wall surface of the kneader body 1, causing the material adhering to the inner wall of the kneader body 1 to move. The movement further propels the material, ensuring that the material adhering to the inner wall can detach from the kneading machine body 1, completing the material discharge. Simultaneously, a rotating eccentric wheel 8 is installed inside the processing table. The surface of the eccentric wheel 8 is in contact with the kneading machine body 1. The rotation of the eccentric wheel 8 drives the kneading machine body 1 to reciprocate, causing it to vibrate. This vibration further accelerates the material discharge. The rotation of the original stirring rod 2 in the same direction scrapes the material adhering to the inner wall of the kneading machine body 1, simultaneously driving the material discharge. Combined with the vibration, this facilitates rapid discharge and prevents material accumulation on the surface of the stirring rod 2, maintaining the discharge speed.

[0031] In some specific implementations, the locking assembly includes a locking gear 9 fixedly disposed at the end of the moving gear 4. The surface of the synchronizing wheel 5 is provided with an inner groove, and a plurality of inner teeth 10 are fixedly connected inside the inner groove. The locking gear 9 and the inner teeth 10 mesh on the same side of the projection. When the locking gear 9 and the inner teeth 10 are in contact, the rotation of the moving gear 4 will be synchronized with the synchronizing wheel 5. As the moving gear 4 moves, it will disengage from the stirring gear 3. At this time, the rotation of the two stirring rods 2 is only driven by the synchronizing wheel 5, so that the two rotate in the same direction.

[0032] It should be noted that a drive motor (not shown in the figure) is fixedly connected to the surface of the kneading machine body 1, and the end of the output shaft of the drive motor (not shown in the figure) is fixedly connected to the end of a stirring rod 2.

[0033] In some specific implementations, a movable column 11 is fixedly connected to the surface of the movable gear 4, and a movable groove 12 is formed on the surface of the stirring rod 2. The movable column 11 is adapted to the movable groove 12; the sliding distance of the movable column 11 can be limited by the movable groove 12.

[0034] In a further embodiment, the surface of the moving gear 4 is provided with an annular groove 13, the cross-section of the annular groove 13 is T-shaped, and a moving rod 14 is slidably connected inside the kneading machine body 1, the moving rod 14 being adapted to the annular groove 13; a moving spring 15 is sleeved on the surface of the moving rod 14, one end of the moving spring 15 is fixedly connected to the surface of the moving rod 14, and the other end of the moving spring 15 is fixedly connected to the inside of the kneading machine body 1; the movement of the moving rod 14 can drive the moving gear 4 to move, but the rotation of the moving gear 4 will not affect the sliding of the moving rod 14;

[0035] In a further embodiment, a push rod 16 is slidably connected to the surface of the kneading machine body 1. The cross-section of the push rod 16 is a right-angled trapezoid, and the inclined surface of the push rod 16 is in contact with the surface of the moving rod 14. An operating cylinder is fixedly connected to the surface of the kneading machine body 1. The end of the piston rod inside the operating cylinder is fixedly connected to the surface of the push rod 16. The piston rod inside the operating cylinder causes the push rod 16 to slide, which can drive the push rod 16 to slide on the surface of the moving rod 14, causing the moving rod 14 to slide outward from the kneading machine body 1.

[0036] It should be noted that the surface of the push rod 16 is provided with a through groove, which is adapted to the moving rod 14. The surface of the moving rod 14 has a large diameter area, and the inclined surface of the push rod 16 fits into this area, so that the sliding of the push rod 16 is not hindered by the moving rod 14.

[0037] In some specific implementations, the support assembly includes a support ring 17 fixedly disposed on the surface of the processing table, the support ring 17 having a through groove inside, and a support column 18 fixedly connected to the surface of the kneading machine body 1, the support column 18 being adapted to the through groove;

[0038] In a further embodiment, two fitting blocks 19 are slidably connected inside the support ring 17, and a vertical groove is opened on the surface of the support ring 17. The vertical groove is connected to the end of the through groove and the two are set perpendicularly. A connecting spring 20 is fixedly connected between the fitting block 19 and the vertical groove.

[0039] In a further embodiment, a gradient block 21 is fixedly connected to the surface of the bonding block 19, and a sliding groove is provided on the surface of the support ring 17. The sliding groove fits with the gradient block 21, and the gradient block 21 is connected to the vertical groove. After the support column 18 on the surface of the kneading machine body 1 slides to a certain position inside the through groove, it will squeeze between the two bonding blocks 19. When the kneading machine body 1 vibrates, the support column 18 can drive the bonding block 19 to move and maintain reciprocating movement under the action of the connecting spring 20.

[0040] In some specific implementations, a plurality of worm gear teeth are fixedly connected to the surface of the kneading machine body 1, and a worm 22 is rotatably connected inside the processing table, the worm 22 meshing with the worm gear teeth;

[0041] In some specific implementations, a rotary cylinder is rotatably connected to the surface of the kneading machine body 1, and the end of the piston rod inside the rotary cylinder is rotatably connected to the end of the sealing cover 7; by sliding the piston rod inside the rotary cylinder, the distance between the rotary cylinder and the sealing cover 7 can be changed, and at the same time the rotary cylinder will rotate, driving the sealing cover 7 to rotate.

[0042] The working principle of this utility model:

[0043] During discharge, first, control the worm 22 to rotate, causing the worm gear teeth to change position and drive the kneader body 1 to rotate. At the same time, control the piston rod inside the rotary cylinder to retract, and the sealing cover 7 to rotate. After the kneader body 1 rotates to a certain position, stop rotating the worm 22. At this time, control the operating cylinder to make the push rod 16 slide, causing the moving rod 14 to slide, pulling the locking gear 9 on the surface of the moving gear 4 and the synchronous wheel 5 to mesh. Start the motor, and the synchronous wheel 5 rotates, driving the two stirring rods 2 to rotate in the same direction, scraping the material inside the kneader body 1, and driving the eccentric wheel 8 to rotate, causing the kneader body 1 to vibrate. At the same time, the material will flow under the action of gravity. After the discharge is completed, reset the kneader body 1 and the push block, and the material can be fed again.

[0044] The above-disclosed embodiments are only a few specific examples of the present utility model. However, the embodiments of the present utility model are not limited thereto. Any changes that can be conceived by those skilled in the art should fall within the protection scope of the present utility model.

Claims

1. A vacuum kneader with a clogging prevention structure, characterized by comprising: The system includes a kneading body (1) that is rotatably mounted on the surface of a processing table. An anti-blocking mechanism is provided between the processing table and the kneading body (1). The anti-blocking mechanism includes: Two stirring rods (2) are rotatably disposed inside the kneading machine body (1). The surface of the stirring rods (2) is in contact with the inner wall of the kneading machine body (1). Two synchronous pulleys (5) are rotatably connected inside the kneading machine body (1). A synchronous belt (6) is connected between the two synchronous pulleys (5). A stirring gear (3) is fixedly connected to the end of one stirring rod (2). A synchronous pulley (5) is fixedly connected to the stirring gear (3). A moving gear (4) is slidably connected to the end of the other stirring rod (2) through a moving component. The projections of the moving gear (4) and the stirring gear (3) mesh with each other. A locking component is provided between the other synchronous pulley (5) and the moving gear (4). The top of the kneading machine body (1) is rotatably equipped with a sealing cover (7), and an eccentric wheel (8) is rotatably connected inside the kneading machine body (1). The surface of the eccentric wheel (8) is in contact with the kneading machine body (1), and a support assembly is provided between the kneading machine body (1) and the processing table.

2. A vacuum kneader with anti-blocking structure according to claim 1, characterized in that, The locking assembly includes a locking gear (9) fixedly disposed at the end of the moving gear (4), and an inner groove is provided on the surface of the synchronous wheel (5). A plurality of inner teeth (10) are fixedly connected inside the inner groove, and the locking gear (9) and the inner teeth (10) mesh on the same side of the projection.

3. The vacuum kneader with a blockage prevention structure according to claim 1, characterized by, The moving gear (4) is fixedly connected to a moving column (11), and the stirring rod (2) is provided with a moving groove (12) on its surface. The moving column (11) and the moving groove (12) are adapted to each other.

4. The vacuum kneader with a blockage prevention structure according to claim 1, characterized by The surface of the moving gear (4) is provided with an annular groove (13), the cross-section of the annular groove (13) is T-shaped, and a moving rod (14) is slidably connected inside the kneading machine body (1), the moving rod (14) is adapted to the annular groove (13).

5. A vacuum kneader with an anti-clogging structure as described in claim 4, characterized in that, A movable spring (15) is fitted on the surface of the movable rod (14). One end of the movable spring (15) is fixedly connected to the surface of the movable rod (14), and the other end of the movable spring (15) is fixedly connected to the inside of the kneading machine body (1).

6. A vacuum kneader with an anti-clogging structure as described in claim 4, characterized in that, A push rod (16) is slidably connected to the surface of the kneading machine body (1). The cross-section of the push rod (16) is a right trapezoid, and the inclined surface of the push rod (16) is in contact with the surface of the moving rod (14). An operating cylinder is fixedly connected to the surface of the kneading machine body (1). The end of the piston rod inside the operating cylinder is fixedly connected to the surface of the push rod (16).

7. A vacuum kneader with an anti-clogging structure as described in claim 1, characterized in that, The support assembly includes a support ring (17) fixedly disposed on the surface of the processing table. A through groove is provided inside the support ring (17). A support column (18) is fixedly connected to the surface of the kneading machine body (1). The support column (18) is adapted to the through groove.

8. A vacuum kneader with an anti-clogging structure as described in claim 7, characterized in that, The support ring (17) has two slidingly connected fitting blocks (19) inside. The support ring (17) has a vertical groove on its surface. The vertical groove is connected to the end of the through groove and the two are set perpendicularly. A connecting spring (20) is fixedly connected between the fitting block (19) and the vertical groove.

9. A vacuum kneader with an anti-clogging structure as described in claim 8, characterized in that, The surface of the bonding block (19) is fixedly connected to a gradient block (21), and the surface of the support ring (17) is provided with a sliding groove. The sliding groove is in contact with the gradient block (21), and the gradient block (21) is connected to the vertical groove.

10. A vacuum kneader with an anti-clogging structure as described in claim 1, characterized in that, The surface of the kneading machine body (1) is fixedly connected with several worm gear teeth, and the inside of the processing table is rotatably connected with a worm (22), which meshes with the worm gear teeth.

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