PVC coiled material internal mixer

Abstract

The utility model relates to the technical field of internal mixers, in particular to a PVC (Polyvinyl Chloride) coiled material internal mixer which comprises a shell, an internal mixer body and an external mixer body, a rotating structure is installed in the middle of the shell and comprises a rotating shaft, the rotating shaft is rotatably installed on the inner side of the shell, the outer side of the middle of the rotating shaft is sleeved with a spiral sleeve, a first spring is fixedly connected to the inner wall of the spiral sleeve, and an abutting rod is fixedly connected to the right side wall of the spiral sleeve; the left end of the rotating shaft is fixedly connected with a first gear, a motor is fixedly installed on the left side wall of the shell, and the output end of the motor is fixedly connected with a second gear. The shielding sleeve is installed on the surface of the rotating shaft and located at the position where the spiral sleeve moves under the restoring force of the first spring, raw materials can be prevented from being attached to the moving area of the spiral sleeve, smooth movement can be guaranteed, the smoothness of linear movement of the spiral sleeve on the rotating shaft is further improved, and the using effect of the device is guaranteed.

Description

Technical Field

[0001] The utility model relates to the technical field of internal mixers, in particular to a PVC coil internal mixer. Background Art

[0002] When PVC coils are produced, an internal mixer is needed to process the raw materials. The internal mixer is mainly used for plasticating and mixing rubber. It is a machine with a pair of rotors of specific shapes that rotate relatively to each other, and which intermittently plasticates and mixes polymer materials under a closed state with adjustable temperature and pressure.

[0003] In this regard, China's patent application number: CN202020772150.5 discloses a mixer for PVC coils, including a mixing chamber, the inner walls of the two sides of the mixing chamber are rotatably connected to two transmission shafts, the ends of the same side of the two transmission shafts pass through the mixing chamber and are connected to a driving device, the transmission shaft is axially slidably sleeved with a sliding cylinder through a spline, the sliding cylinder is provided with an annular groove, a spring is provided in the annular groove, and the spring is movably sleeved on the transmission shaft, and the two ends of the spring are respectively fixedly connected to the transmission shaft and the annular groove. The raw material of the utility model is fed into the mixing chamber through the feeding port, the motor drives the driving gear, the driving gear transmits the torque to the transmission shaft through the meshing driven gear, and drives the two sliding cylinders to rotate relative to each other through the spline. In this process, the push rod pushes the sliding cylinder to slide back and forth in the axial direction in the process of contacting the fixed ring, so that the spirals on the two sliding cylinders move back and forth in a straight line relative to each other, thereby providing shear force and improving the mixing effect.

[0004] The internal mixer can drive the spirals on the two sets of sliding cylinders to move relative to each other through the cooperation of the push rod and the fixed ring, but the sliding cylinder is reset by the elasticity of the spring. Since the raw materials of the PVC coil are relatively viscous after heating, the raw materials adhere to the surface of the transmission shaft, which makes it difficult for the sliding cylinder to reset on the transmission shaft, which will lead to unsatisfactory internal mixing effect of the device on the raw materials.

[0005] Therefore, in order to solve the above problems, a PVC coil internal mixer is proposed. Utility Model Content

[0006] The purpose of the utility model is to provide a PVC coil internal mixer to solve the problem that the internal mixer in the prior art mentioned in the above background technology can drive the spirals on the two sets of sliding cylinders to move relative to each other through the cooperation of a push rod and a fixed ring, but the sliding cylinder is reset by the elasticity of a spring. Since the raw materials of the PVC coil are relatively viscous after heating, the raw materials adhere to the surface of the transmission shaft, which makes it difficult to reset the sliding cylinder on the transmission shaft, thereby causing the device to have an unsatisfactory internal mixing effect on the raw materials.

[0007] To achieve the above object, the utility model provides the following technical solution: a PVC coil internal mixer, comprising: a shell, the top surface of which is provided with a movable groove;

[0008] A rotating structure is installed in the middle of the shell, and the rotating structure includes a rotating shaft, which is rotatably installed on the inner side of the shell, a spiral sleeve is provided on the outer side of the middle part of the rotating shaft, a first spring is fixedly connected to the inner wall of the spiral sleeve, a push rod is fixedly connected to the right side wall of the spiral sleeve, a first gear is fixedly connected to the left end of the rotating shaft, a motor is fixedly installed on the left side wall of the shell, a second gear is fixedly connected to the output end of the motor, a connecting plate is fixedly connected to the inner wall of the shell, a sleeve block is fixedly installed in the middle of the connecting plate, a shield sleeve is movably installed on the inner left end of the sleeve block, a second spring is fixedly connected to the right side wall of the shield sleeve, and a fixed block is fixedly installed on the inner right wall of the shell.

[0009] Preferably, a feeding structure is installed on the top surface of the shell, and the feeding structure includes a movable plate, the movable plate is slidably installed on the inner side of the movable groove, a feeding port is provided in the middle of the movable plate, and an electric push rod is fixedly installed on the upper end of the rear wall of the shell.

[0010] Preferably, the rotating shaft, the spiral sleeve and the first gear are respectively provided in two groups, the two groups of the rotating shaft are arranged up and down, and the second gear is meshed with the two groups of the first gear.

[0011] Preferably, one end of the first spring is fixedly connected to the rotating shaft, and the right end of the abutment rod abuts against the left side wall of the fixed block.

[0012] Preferably, the shielding sleeve, the sleeve block and the fixed block are all sleeved on the outside of the rotating shaft, the left side wall of the shielding sleeve abuts against the right side wall of the spiral sleeve, and one end of the second spring is fixedly connected to the inner wall of the sleeve block.

[0013] Preferably, the output end of the electric push rod is fixedly connected to the back side of the movable plate.

[0014] Compared with the prior art, the beneficial effects of the utility model are: the shielding sleeve provided in the utility model is installed on the surface of the rotating shaft at the position where the spiral sleeve moves due to the restoring force of the first spring, which can prevent the raw material from adhering to the area where the spiral sleeve moves, ensure smooth movement, and further improve the smoothness of the linear movement of the spiral sleeve on the rotating shaft, thereby ensuring the use effect of the device.

[0015] 1. The utility model is provided with a rotating structure, and the starting motor can drive the second gear to rotate, and the second gear drives the upper and lower first gears and the rotating shaft to rotate, so that the material can be refined. When the rotating shaft rotates, the spiral sleeve is driven to rotate, and the spiral sleeve drives the push rod to slide on the fixed block, and the push rod cooperates with the fixed block, that is, drives the spiral sleeve to move leftward on the rotating shaft and drives the first spring to deform. At the same time, the cover sleeve will fit the spiral sleeve under the action of the second spring, and can cover the position of the spiral sleeve on the rotating shaft before it moves to avoid the material from adhering thereto, and the push rod cooperates with the fixed block, and the spiral sleeve will reset to the right under the action of the first spring, and the spiral sleeve will push the cover sleeve to retract into the sleeve block, so as to ensure the smoothness of the spiral sleeve on the rotating shaft, ensure the distance of the spiral sleeve moving in a straight line, and maintain a good shearing effect between the two groups of spiral sleeves;

[0016] 2. The utility model is provided with a feeding structure, and the upper end of the feeding port is connected to a hose, so that the raw materials can be transported into the shell through the hose and the feeding port, and the electric push rod is started, and the electric push rod drives the movable plate to move back and forth in the movable groove, thereby adjusting the front and rear positions of the materials entering the inner side of the shell, thereby increasing the distribution range, avoiding material accumulation, and ensuring the mixing effect. BRIEF DESCRIPTION OF THE DRAWINGS

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

[0018] Figure 2 It is a schematic diagram of a front cross-section of the structure of the utility model;

[0019] Figure 3 It is a schematic diagram of the front cross-section of the structure of the spiral sleeve of the utility model;

[0020] Figure 4 For this utility model Figure 3 A schematic diagram of the structure enlargement at the center A;

[0021] Figure 5 It is a schematic side cross-sectional view of the structure of the feeding structure of the utility model.

[0022] In the figure: 1. outer shell; 11. movable groove; 2. rotating structure; 21. rotating shaft; 22. spiral sleeve; 23. first spring; 24. push rod; 25. first gear; 26. motor; 27. second gear; 28. connecting plate; 29. ​​sleeve block; 210. cover sleeve; 211. second spring; 212. fixed block; 3. feeding structure; 31. movable plate; 32. feeding port; 33. electric push rod. DETAILED DESCRIPTION

[0023] 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.

[0024] See also Figure 1-5 , an embodiment provided by the utility model:

[0025] The housing 1, motor 26 and electric push rod 33 used in the present application are products that can be directly purchased on the market. Their principles and connection methods are existing technologies well known to those skilled in the art, so they will not be described here in detail.

[0026] A PVC coil internal mixer comprises: a housing 1, a top surface of which is provided with a movable groove 11;

[0027] A rotating structure 2 is installed in the middle of the housing 1. The rotating structure 2 includes a rotating shaft 21. The rotating shaft 21 is rotatably installed on the inner side of the housing 1. A spiral sleeve 22 is sleeved on the outer side of the middle of the rotating shaft 21. A first spring 23 is fixedly connected to the inner wall of the spiral sleeve 22. A push rod 24 is fixedly connected to the right side wall of the spiral sleeve 22. A first gear 25 is fixedly connected to the left end of the rotating shaft 21. A motor 26 is fixedly installed on the left side wall of the housing 1. A second gear 27 is fixedly connected to the output end of the motor 26. A connecting plate 28 is fixedly connected to the inner wall of the housing 1. A sleeve block 29 is fixedly installed in the middle of the plate 28, and a shield sleeve 210 is movably installed on the inner left end of the sleeve block 29. A second spring 211 is fixedly connected to the right side wall of the shield sleeve 210, and a fixing block 212 is fixedly installed on the inner right wall of the outer shell 1. The shield sleeve 210 is installed on the surface of the rotating shaft 21 and is located at the position where the spiral sleeve 22 moves due to the restoring force of the first spring 23. This can prevent the raw material from adhering to the area where the spiral sleeve 22 moves, ensure smooth movement, and thus improve the smoothness of the linear movement of the spiral sleeve 22 on the rotating shaft 21, thereby ensuring the use effect of the device.

[0028] Furthermore, a feeding structure 3 is installed on the top surface of the shell 1, and the feeding structure 3 includes a movable plate 31, which is slidably installed on the inner side of the movable groove 11. A feeding port 32 is arranged in the middle of the movable plate 31, and an electric push rod 33 is fixedly installed on the upper end of the rear wall of the shell 1. The upper end of the feeding port 32 is connected to a hose, and the raw materials can be transported into the shell 1 through the hose and the feeding port 32. The electric push rod 33 is started, and the electric push rod 33 drives the movable plate 31 to move back and forth in the movable groove 11, so as to adjust the front and rear position of the material entering the inner side of the shell 1, thereby increasing the material distribution range, avoiding material accumulation, and ensuring the mixing effect.

[0029] Furthermore, two groups of rotating shafts 21, spiral sleeves 22 and first gears 25 are respectively provided, and the two groups of rotating shafts 21 are arranged up and down. The second gear 27 is meshed with the two groups of first gears 25. The rotation of the second gear 27 can drive the two groups of rotating shafts 21 to rotate in the opposite direction through the first gear 25.

[0030] Furthermore, one end of the first spring 23 is fixedly connected to the rotating shaft 21, and the right end of the push rod 24 abuts against the left side wall of the fixed block 212. The push rod 24 cooperates with the fixed block 212 to drive the spiral sleeve 22 to move on the rotating shaft 21, and the first spring 23 provides power for the spiral sleeve 22 to reset on the rotating shaft 21.

[0031] Furthermore, the shielding sleeve 210, the sleeve block 29 and the fixed block 212 are all sleeved on the outside of the rotating shaft 21, the left side wall of the shielding sleeve 210 abuts against the right side wall of the spiral sleeve 22, one end of the second spring 211 is fixedly connected to the inner wall of the sleeve block 29, and the shielding sleeve 210 covers the outside of the rotating shaft 21, which can prevent the part of the rotating shaft 21 located on the inner side of the shielding sleeve 210 from adhering to the raw material, so that the spiral sleeve 22 can be smoothly reset on the rotating shaft 21.

[0032] Furthermore, the output end of the electric push rod 33 is fixedly connected to the back side of the movable plate 31 , and the electric push rod 33 provides power for the forward and backward movement of the movable plate 31 .

[0033] Working principle: When in use, the upper end of the feeding port 32 is connected to the hose, and the raw materials can be transported into the housing 1 through the hose and the feeding port 32, and the electric push rod 33 is started, and the electric push rod 33 drives the movable plate 31 to move forward and backward in the movable groove 11, thereby adjusting the front and rear positions of the materials entering the inner side of the housing 1, increasing the distribution range, avoiding material accumulation, and ensuring the mixing effect;

[0034] The starting motor 26 can drive the second gear 27 to rotate, and the second gear 27 drives the upper and lower groups of first gears 25 and the rotating shaft 21 to rotate, so as to perform banburying on the material. When the rotating shaft 21 rotates, the spiral sleeve 22 is driven to rotate, and the spiral sleeve 22 drives the push rod 24 to slide on the fixed block 212. The push rod 24 cooperates with the fixed block 212, that is, drives the spiral sleeve 22 to move leftward on the rotating shaft 21, and drives the first spring 23 to deform. At the same time, the cover sleeve 210 will fit the spiral sleeve 22 under the action of the second spring 211, and can cover the position of the spiral sleeve 22 on the rotating shaft 21 before it moves to avoid adhesion of materials there. The push rod 24 cooperates with the fixed block 212, and the spiral sleeve 22 will reset to the right under the action of the first spring 23. The spiral sleeve 22 pushes the cover sleeve 210 to retract into the sleeve block 29, which can ensure the smoothness of the spiral sleeve 22 on the rotating shaft 21, ensure the distance of the spiral sleeve 22 moving in a straight line, and maintain a good shearing effect between the two groups of spiral sleeves 22.

[0035] The above description is only a preferred embodiment of the utility model and does not limit the utility model in any form. Any ordinary technician in the industry can smoothly implement the utility model as shown in the drawings of the specification and described above. However, any equivalent changes, modifications and evolutions made by technicians familiar with the profession without departing from the scope of the technical solution of the utility model using the technical content disclosed above are all equivalent embodiments of the utility model. At the same time, any equivalent changes, modifications and evolutions made to the above embodiments based on the essential technology of the utility model are still within the protection scope of the technical solution of the utility model.

Claims

1. A PVC coil internal mixer, comprising: A housing (1), wherein a movable groove (11) is formed on the top surface of the housing (1); Features: A rotating structure (2) is installed in the middle of the housing (1), and the rotating structure (2) comprises a rotating shaft (21), and the rotating shaft (21) is rotatably installed on the inner side of the housing (1). A spiral sleeve (22) is sleeved on the outer side of the middle of the rotating shaft (21), and a first spring (23) is fixedly connected to the inner wall of the spiral sleeve (22), and a push rod (24) is fixedly connected to the right side wall of the spiral sleeve (22). A first gear (25) is fixedly connected to the left end of the rotating shaft (21). The housing (1 ) is fixedly mounted on the left side wall of the housing (1), the output end of the motor (26) is fixedly connected to a second gear (27), a connecting plate (28) is fixedly connected to the inner wall of the housing (1), a sleeve block (29) is fixedly mounted in the middle of the connecting plate (28), a shielding sleeve (210) is movably mounted on the inner left end of the sleeve block (29), a second spring (211) is fixedly connected to the right side wall of the shielding sleeve (210), and a fixing block (212) is fixedly mounted on the inner right wall of the housing (1).

2. A PVC coil internal mixer according to claim 1, characterized in that: A loading structure (3) is installed on the top surface of the shell (1), and the loading structure (3) includes a movable plate (31). The movable plate (31) is slidably installed on the inner side of the movable groove (11), and a loading port (32) is provided in the middle of the movable plate (31). An electric push rod (33) is fixedly installed on the upper end of the rear wall of the shell (1).

3. A PVC coil internal mixer according to claim 1, characterized in that: The rotating shaft (21), the spiral sleeve (22) and the first gear (25) are respectively provided in two groups, the two groups of the rotating shaft (21) are arranged up and down, and the second gear (27) is meshed with the two groups of the first gear (25).

4. A PVC coil internal mixer according to claim 1, characterized in that: One end of the first spring (23) is fixedly connected to the rotating shaft (21), and the right end of the abutment rod (24) abuts against the left side wall of the fixed block (212).

5. A PVC coil internal mixer according to claim 1, characterized in that: The shielding sleeve (210), the sleeve block (29) and the fixed block (212) are all sleeved on the outside of the rotating shaft (21); the left side wall of the shielding sleeve (210) abuts against the right side wall of the spiral sleeve (22); and one end of the second spring (211) is fixedly connected to the inner wall of the sleeve block (29).

6. A PVC coil internal mixer according to claim 2, characterized in that: The output end of the electric push rod (33) is fixedly connected to the back side of the movable plate (31).

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