Internal mixer for PVC film production and production process thereof

Abstract

The present invention discloses a PVC film production internal mixer and a production process thereof, which relates to the field of internal mixers, including a base, an internal mixer body, an output end, a regulator and an internal mixer block, wherein the internal mixer body is installed above the base, the front side of the internal mixer body is provided with a regulator, and the left side of the internal mixer body is provided with an output end for outputting power, and the left end of the output end is connected with an internal mixer block, a feeding port is provided above the internal mixer block, and a sealing mechanism is provided above the feeding port, the interior of the internal mixer block is designed as a hollow structure, and movable blocks are symmetrically provided on the front and rear sides of the internal mixer block. The PVC film production internal mixer forms a sealing structure by arranging the movable block on the outside of the rotor, so that the subsequent internal mixer can be smoothly mixed, and the movable block can be moved inside the internal mixer block, and the rotor can be leaked out after the internal mixer block moves, which is convenient for discharging and heat dissipation.

Description

Technical Field

[0001] The invention relates to the technical field of internal mixers, in particular to an internal mixer for producing PVC films and a production process thereof. Background Art

[0002] When the PVC film is produced and processed, the raw materials for the production of the PVC film can be mixed by an internal mixer, and the performance and internal mixer parameters of the raw materials can also be adjusted and inspected by a small internal mixer. The internal mixer can process the raw materials in a closed state at a suitable temperature through a group of rotors, and the temperature of the internal mixer can be automatically adjusted by a control system. The application number is CN201810127553.1, and a kind of internal mixer for PVC film production disclosed on September 7, 2018, includes a base, a mixing chamber and a transmission motor, the interior of the mixing chamber wall is provided with a cavity, and the bottom of the cavity is provided with a cavity water inlet, and the upper end of one side wall of the mixing chamber is provided with a cavity water outlet, a cold water tank is installed on one side of the transmission motor, and the cavity water outlet is connected to the cold water tank through a hose, a hot water tank is installed on one side of the cold water tank, and the cold water tank is connected to the hot water tank through a conduit, a circulating pump is installed on one side of the hot water tank, the input end of the circulating pump is connected to the hot water tank through a conduit, and the output end of the circulating pump is connected to the cavity water inlet through a hose. The present invention uses a circulating pump installed on one side of the hot water tank to introduce the heated water in the hot water tank into the cavity provided inside the wall of the mixing chamber through a hose, so as to heat the inside of the mixing chamber, increase the softening speed of the plastic particles during mixing, and improve the mixing efficiency; the application number is CN201810964362.0, and an ion type mixing internal mixer disclosed on December 21, 2018, includes a base frame, a mixing cavity, a pressure block, a hydraulic system, a motor group 1, a motor group 2 and a control box, the mixing cavity is arranged on the base frame, a support frame is provided on one side of the mixing cavity, and the hydraulic system is provided on the control box. The pressure system includes a hydraulic cylinder, a hydraulic motor group and a hydraulic oil tank. The hydraulic cylinder is arranged on a support frame. One end of the pressure block is connected to the hydraulic cylinder. The other end of the pressure block is sleeved in a mixing chamber. An extrusion wheel 1, an extrusion wheel 2, a shear block and a cathode arc plate are arranged in the mixing chamber. The motor group 1 is arranged on one side of the mixing chamber and connected to one end of the extrusion wheel 1. The motor group 2 is arranged on one side of the mixing chamber and connected to one end of the extrusion wheel 2. A cooling chamber is arranged at the bottom of the shear block. The equipment has low energy consumption, high efficiency, environmental protection, and is conducive to universal promotion.

[0003] The internal mixing chamber of the current internal mixer is mostly integrated. After the internal mixing, in order to remove the raw materials after the internal mixing, the internal mixing chamber needs to be dumped or dug out with the help of tools. In addition, due to the obstruction of the sealing mechanism above the internal mixing chamber, it is inconvenient to remove the raw materials. Alternatively, the internal mixing chamber needs to be disassembled, which reduces the convenience of subsequent removal of the processed raw materials and is not conducive to the subsequent cleaning of the rotor in the internal mixing chamber. Summary of the invention

[0004] The object of the present invention is to provide an internal mixer for producing PVC film and a production process thereof, so as to solve the problem raised in the above background technology that it is inconvenient to handle the raw materials after internal mixer use in the current market.

[0005] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a kind of internal mixer for PVC film production, comprising a base, an internal mixer body, an output end, a regulator and an internal mixer block, the internal mixer body is installed on the top of the base, the regulator is arranged on the front side of the internal mixer body, and the output end is arranged on the left side of the internal mixer body for outputting power, and the left end of the output end is connected with the internal mixer block, a feeding port is arranged on the top of the internal mixer block, and a sealing mechanism is arranged on the top of the feeding port, the interior of the internal mixer block is designed as a hollow structure, and movable blocks are symmetrically arranged on the front and rear sides of the internal mixer block, and the outer side of the internal mixer block is enclosed by the movable blocks, and a rotor is arranged inside the internal mixer block, and the right end of the rotor A transmission shaft is connected, and a nested connection is formed between the right end of the transmission shaft and the output end, a mounting plate is connected to the left side of the internal mixing body, a heating module is arranged inside the internal mixing block, a circuit connection block is fixed to the right side of the internal mixing block, a power transmission module is plugged into the right side of the circuit connection block, and the power transmission module is fixed to the left side of the internal mixing body, an adjusting rod is fixed to the outside of the movable block, a fixed plate is passed through the outer end of the adjusting rod, and the fixed plate is fixed to the side of the internal mixing block, a first gear is rotatably installed inside the fixed plate, the adjusting rod passes through the first gear and a threaded connection is formed between the first gear, and a driving mechanism is connected to the outside of the first gear to control the rotation of the first gear.

[0006] To further optimize the technical solution, a heat insulation plate is fixed to the left side of the mounting plate to isolate the heat between the internal mixing block and the internal mixing machine body.

[0007] To further optimize the technical solution, the sealing mechanism includes a sealing block, a buffer spring, a retractor and a support frame;

[0008] A sealing block is arranged above the feeding port;

[0009] A buffer spring is fixed on the sealing block to provide a buffer force for the sealing block;

[0010] A telescoping device, arranged above the buffer spring to control the movement of the sealing block;

[0011] The support frame is fixed on the top of the telescopic device, and the support frame is fixedly connected to the internal mixer body.

[0012] To further optimize the technical solution, a material receiving box is provided below the mixing block, and the material receiving box is installed inside the base and between the base to form a front-to-back sliding structure.

[0013] To further optimize the technical solution, the driving mechanism includes a second gear, a third gear, a connecting shaft and a first heat-insulating handle;

[0014] A second gear is rotatably mounted inside the fixed plate, and the second gear is meshed with the first gear;

[0015] A third gear is arranged outside the second gear and meshed with the second gear, and the third gear is rotatably mounted on the left side of the mixing block;

[0016] A connecting shaft is fixed at the middle of the third gear to control the rotation of the third gear, and a rotation connection is formed between the connecting shaft and the mixing block;

[0017] The first heat-insulating handle is fixed at the front and rear ends of the connecting shaft, and the first heat-insulating handle is located outside the mixing block.

[0018] To further optimize the technical solution, a movable docking mechanism is provided between the mixing block and the mounting plate to connect the mixing block and the mounting plate.

[0019] Further optimizing the technical solution, the movable docking mechanism includes a mounting shaft, a mounting groove, a fourth gear, a fifth gear, a sixth gear, a control shaft, a connecting plate and a second heat-insulating handle;

[0020] The installation shafts are evenly distributed on the inner side of the internal kneading block, and the installation shafts and the internal kneading block form a rotation connection, and the installation shafts and the movable block form a sliding connection;

[0021] The mounting groove is provided on the left side of the mounting plate, and the mounting groove and the mounting shaft are arranged in a one-to-one correspondence, and a threaded connection is formed between the mounting groove and the mounting shaft;

[0022] The fourth gear is fixed on the left side of the mounting shaft;

[0023] A fifth gear is rotatably mounted inside the mixing block, and the fifth gear is meshed with the fourth gear;

[0024] The sixth gear is arranged inside the fifth gear and meshes with the fifth gear, and the sixth gear is rotationally connected to the mixing block;

[0025] A control shaft is fixed at the middle of the sixth gear to control the rotation of the sixth gear;

[0026] A connecting plate is fixed to the left end of the control shaft and is located outside the mixing block;

[0027] The second heat-insulating handle is rotatably mounted on the left side of the connecting plate, and the center of the second heat-insulating handle and the center of the control shaft are staggered.

[0028] To further optimize the technical solution, an auxiliary groove is provided on the top of the base, and the auxiliary groove and the installation axis are arranged in a one-to-one correspondence to provide positioning for the placement of the mixing block.

[0029] To further optimize the technical solution, a locking rod is passed through the interior of the connecting plate, and a threaded connection is formed between the locking rod and the connecting plate.

[0030] A production process of an internal mixer for producing PVC film, the process comprising the following steps:

[0031] Step 1: When in use, the mixing block can be replaced and adjusted according to production needs, thereby changing the shape of the mixing chamber and the rotor shape, thereby adjusting the mixing environment. The concave and convex matching of the transmission shaft and the output end can realize the transmission of power, and the subsequent connection and disassembly can be carried out by plugging and unplugging;

[0032] Step 2: Add the PVC film raw material to be tested by internal mixing into the internal mixing block through the feeding port, and then control the sealing mechanism to close the feeding port, and drive the transmission shaft and the rotor to rotate through the output end of the mixer body. At the same time, the temperature of the heating module can be adjusted and controlled by the regulator to achieve the control of the internal mixing temperature, and the raw materials are mixed by the reverse rotation of the two sets of rotors;

[0033] Step 3: After the internal mixing is completed, the first gear can be controlled to rotate, so that it can drive the adjusting rod to move through the threaded connection between it and the adjusting rod, so that the adjusting rod pulls the movable block to move, exposing the rotor, which is convenient for the discharge of the material in the internal mixing block and is also beneficial for the rapid heat dissipation of the internal mixing block.

[0034] Compared with the prior art, the present invention has the following beneficial effects:

[0035] The movable block is arranged on the outside of the rotor to form a sealing structure, so that the subsequent internal mixing can be carried out smoothly, and the movable block can move inside the internal mixing block. After the internal mixing block moves, the rotor can be leaked out, which is convenient for discharging and heat dissipation;

[0036] The threaded connection between the adjusting rod and the first gear enables the first gear to drive the movable block to move when rotating, thereby controlling the movable block to move, and the two groups of movable blocks can move synchronously. After the movable block moves, the raw materials can be collected through the material receiving box, which is more convenient to use.

[0037] The transmission control of the rotor is realized through the concave-convex matching connection between the output end and the transmission shaft, and the internal mixing block and the internal mixing machine body can be disassembled. The internal mixing blocks of different types of rotors can be replaced and installed later to simulate different internal mixing environments;

[0038] The kneading block can be installed and fixed by the connection between the installation shaft and the installation groove, and the rotation of the installation shaft can be manually controlled by the second heat-insulating handle, which is easy to operate, and the disassembled kneading block can be placed on the top of the base through the auxiliary groove to keep it stable;

[0039] Through the mutual cooperation between the fourth gear, the fifth gear and the sixth gear, multiple groups of installation shafts can rotate synchronously, thereby improving the subsequent installation and disassembly efficiency, and the locking rod can lock the rotation of the sixth gear to improve the installation stability of the mixing block. BRIEF DESCRIPTION OF THE DRAWINGS

[0040] Figure 1 It is a schematic diagram of the three-dimensional structure of the present invention;

[0041] Figure 2 It is a schematic diagram of the three-dimensional structure of the base of the present invention;

[0042] Figure 3 It is a schematic diagram of the three-dimensional structure of the internal mixing block of the present invention;

[0043] Figure 4 It is a schematic diagram of the side view structure of the internal mixing block of the present invention;

[0044] Figure 5 This is a schematic diagram of the structure of the internal mixing block of the present invention when viewed from above;

[0045] Figure 6 It is a schematic diagram of the side cross-section structure of the internal mixing block of the present invention;

[0046] Figure 7 This is a schematic diagram of the main cross-sectional structure of the fixing plate of the present invention;

[0047] Figure 8 This is a schematic diagram of the side view structure of the third gear of the present invention;

[0048] Fig. 9 This is a schematic diagram of the main cross-sectional structure of the internal mixing block of the present invention;

[0049] Fig.10 It is a schematic diagram of the side structure of the sixth gear of the present invention.

[0050] In the figure: 1. base; 2. mixer body; 3. output end; 4. regulator; 5. mixer block; 501. feeding port; 6. movable block; 7. rotor; 8. transmission shaft; 9. mounting plate; 10. heat insulation plate; 11. sealing block; 12. buffer spring; 13. telescope; 14. support frame; 15. heating module; 16. circuit connection block; 17. power transmission module; 18. adjustment rod; 19. fixing plate; 20. material receiving box; 21. first gear; 22. second gear; 23. third gear; 24. connecting shaft; 25. first heat insulation handle; 26. mounting shaft; 27. mounting slot; 28. auxiliary slot; 29. ​​fourth gear; 30. fifth gear; 31. sixth gear; 32. control shaft; 33. connecting plate; 34. second heat insulation handle; 35. locking rod. DETAILED DESCRIPTION

[0051] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0052] See also Figure 1-Figure 10 The present invention provides the following technical solution: an internal mixer for PVC film production, comprising a base 1, an internal mixer body 2, an output terminal 3, a regulator 4 and an internal mixer block 5, the internal mixer body 2 is installed above the base 1, the regulator 4 is arranged on the front side of the internal mixer body 2, and the output terminal 3 is arranged on the left side of the internal mixer body 2 for outputting power, and the left end of the output terminal 3 is connected to the internal mixer block 5.

[0053] Embodiment 1: The invention provides a technical solution, which discloses that a feeding port 501 is arranged above the internal kneading block 5, and a sealing mechanism is arranged above the feeding port 501, the interior of the internal kneading block 5 is designed as a hollow structure, and movable blocks 6 are symmetrically arranged on the front and rear sides of the internal kneading block 5, and the outer side of the internal kneading block 5 is enclosed by the movable blocks 6, a rotor 7 is arranged inside the internal kneading block 5, and a transmission shaft 8 is connected to the right end of the rotor 7, and a nested connection is formed between the right end of the transmission shaft 8 and the output end 3, a mounting plate 9 is connected to the left side of the internal kneading body 2, and a heating module 1 is arranged inside the internal kneading block 5 5, and a circuit connection block 16 is fixed on the right side of the mixing block 5, and a power transmission module 17 is plugged into the right side of the circuit connection block 16, and the power transmission module 17 is fixed to the left side of the mixing body 2, an adjusting rod 18 is fixed to the outside of the movable block 6, and a fixing plate 19 is passed through the outer end of the adjusting rod 18, and the fixing plate 19 is fixed to the side of the mixing block 5, and a first gear 21 is rotatably installed inside the fixing plate 19, the adjusting rod 18 passes through the first gear 21 and the first gear 21 is threadedly connected, and a driving mechanism is connected to the outside of the first gear 21 to control the rotation of the first gear 21;

[0054] A production process of an internal mixer for producing PVC film, the process comprising the following steps:

[0055] Step 1: When in use, the mixing block 5 can be replaced and adjusted according to production needs, thereby changing the shape of the mixing chamber and the rotor 7, thereby adjusting the mixing environment. The concave-convex fit between the transmission shaft 8 and the output end 3 can realize power transmission, and the connection and disassembly can be carried out by plugging and unplugging later;

[0056] Step 2: Add the PVC film raw material to be tested by banburying into the inside of the banburying block 5 through the feeding port 501, and then control the sealing mechanism to close the feeding port 501, and drive the transmission shaft 8 and the rotor 7 to rotate through the banburying body 2 driving the output end 3, and at the same time, the temperature of the heating module 15 can be adjusted and controlled by the regulator 4 to achieve the control of the banburying temperature, and the raw material is subjected to banburying treatment by the reverse rotation of the two sets of rotors 7;

[0057] Step three: After the mixing is completed, the first gear 21 can be controlled to rotate, so that it can drive the adjusting rod 18 to move through the threaded connection between it and the adjusting rod 18, so that the adjusting rod 18 pulls the movable block 6 to move, exposing the rotor 7, which is convenient for the discharge of the material in the mixing block 5 and is also beneficial to quickly dissipate the heat of the mixing block 5.

[0058] Embodiment 2: On the basis of embodiment 1, a heat insulating plate 10 is fixed on the left side of the mounting plate 9 to isolate the heat between the internal mixing block 5 and the internal mixing machine body 2. The sealing mechanism includes a sealing block 11, a buffer spring 12, a telescope 13 and a support frame 14. The sealing block 11 is arranged above the feeding port 501. The buffer spring 12 is fixed on the side of the sealing block 11 to provide a buffer force for the sealing block 11. The telescope 13 is arranged above the buffer spring 12 to control the movement of the sealing block 11. The support frame 14 is fixed above the telescope 13, and the support frame 14 is fixedly connected to the internal mixing machine body 2. A material receiving box 20 is arranged below the internal mixing block 5, and the material receiving box 20 is installed inside the base 1 and the base 1 A front-to-back sliding structure is formed therebetween, the driving mechanism includes a second gear 22, a third gear 23, a connecting shaft 24 and a first heat-insulating handle 25, the second gear 22 is rotatably mounted inside the fixed plate 19, and a meshing connection is formed between the second gear 22 and the first gear 21, the third gear 23 is arranged on the outer side of the second gear 22 and a meshing connection is formed between the second gear 22, and the third gear 23 is rotatably mounted on the left side of the mixing block 5, the connecting shaft 24 is fixed at the middle part of the third gear 23 to control the rotation of the third gear 23, and a rotational connection is formed between the connecting shaft 24 and the mixing block 5, the first heat-insulating handle 25 is fixed at the front and rear ends of the connecting shaft 24, and the first heat-insulating handle 25 is located on the outer side of the mixing block 5;

[0059] The movement of the sealing block 11 can be controlled by the telescopic device 13, so that the sealing block 11 can block and seal the feeding port 501 to ensure the stability of the subsequent mixing environment, and the buffer spring 12 above the sealing block 11 can provide a certain range of movement for the sealing block 11, so that the sealing block 11 can adapt to the changes in the material during the initial mixing. When the material needs to be discharged after the mixing is completed, the first insulation handle 25 can be rotated to drive the connecting shaft 24 to rotate, and the connecting shaft 24 drives the third gear 23 to rotate. The third gear 23 drives the second gear 22 and the first gear 21 to rotate through the engagement with the second gear 22. The first gear 21 drives the adjusting rod 18 and the movable block 6 to move through the threaded connection between the adjusting rod 18, so that the two groups of movable blocks 6 move outward synchronously, exposing the inside of the mixing block 5, facilitating the removal of the material box to dissipate heat in the mixing block 5, and the material can fall into the receiving box 20 to be collected.

[0060] Embodiment 3: On the basis of embodiment 1, it is disclosed that a movable docking mechanism is arranged between the mixing block 5 and the mounting plate 9 to connect the mixing block 5 and the mounting plate 9, and the movable docking mechanism includes a mounting shaft 26, a mounting groove 27, a fourth gear 29, a fifth gear 30, a sixth gear 31, a control shaft 32, a connecting plate 33 and a second heat insulation handle 34, the mounting shaft 26 is evenly distributed on the inner side of the mixing block 5, and a rotating connection is formed between the mounting shaft 26 and the mixing block 5, and a sliding connection is formed between the mounting shaft 26 and the movable block 6, the mounting groove 27 is opened on the left side of the mounting plate 9, and the mounting groove 27 and the mounting shaft 26 are arranged in a one-to-one correspondence, and a threaded connection is formed between the mounting groove 27 and the mounting shaft 26, the fourth gear 29 is fixed on the left side of the mounting shaft 26, the fifth gear 30 is rotatably installed inside the mixing block 5, and The fifth gear 30 and the fourth gear 29 are meshed together, the sixth gear 31 is arranged on the inner side of the fifth gear 30 and meshed with the fifth gear 30, and the sixth gear 31 and the mixing block 5 are rotatably connected, the control shaft 32 is fixed at the middle of the sixth gear 31 to control the rotation of the sixth gear 31, the connecting plate 33 is fixed at the left end of the control shaft 32, and the connecting plate 33 is located on the outside of the mixing block 5, the second heat insulation handle 34 is rotatably mounted on the left side of the connecting plate 33, and the center of the second heat insulation handle 34 is staggered with the center of the control shaft 32, an auxiliary groove 28 is provided above the base 1, and the auxiliary groove 28 and the mounting shaft 26 are arranged in a one-to-one correspondence to provide positioning for the placement of the mixing block 5, a locking rod 35 is passed through the interior of the connecting plate 33, and a threaded connection is formed between the locking rod 35 and the connecting plate 33;

[0061] The mixing block 5 can be disassembled and replaced. When the mixing block 5 is disassembled, the second heat insulation handle 34 can be rotated. Before rotating the second heat insulation handle 34, the locking rod 35 can be rotated to release the connection between the locking rod 35 and the mixing block 5, so that the connecting plate 33 becomes movable. Then, the connecting plate 33 is driven to rotate by the second heat insulation handle 34. The connecting plate 33 drives the sixth gear 31 to rotate through the control shaft 32. The sixth gear 31 synchronously drives multiple groups of mounting shafts 26 to rotate through the mutual cooperation between the fifth gear 30 and the fourth gear 29, and the threaded connection between the mounting shaft 26 and the mounting groove 27 is released. Then, the mixing block 5 can be pulled down, and the connection between the output end 3 and the transmission shaft 8 can be released. The removed mixing block 5 can be placed above the base 1 through the connection between the mounting shaft 26 and the auxiliary groove 28.

[0062] The contents not described in detail in this specification belong to the prior art known to professional and technical personnel in this field.

[0063] Although the present invention has been described in detail with reference to the aforementioned embodiments, it is still possible for those skilled in the art to modify the technical solutions described in the aforementioned embodiments, or to 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. An internal mixer for producing PVC film, comprising a base (1), an internal mixer body (2), an output end (3), a regulator (4) and an internal mixer block (5), wherein the internal mixer body (2) is installed above the base (1), the regulator (4) is arranged on the front side of the internal mixer body (2), and the output end (3) is arranged on the left side of the internal mixer body (2) for outputting power, and the left end of the output end (3) is connected to the internal mixer block (5); Features: A feeding port (501) is arranged above the mixing block (5), and a sealing mechanism is arranged above the feeding port (501); the interior of the mixing block (5) is designed as a hollow structure, and movable blocks (6) are symmetrically arranged on the front and rear sides of the mixing block (5), and the outer side of the mixing block (5) is enclosed by the movable blocks (6); a rotor (7) is arranged inside the mixing block (5), and the right end of the rotor (7) is connected to a transmission shaft (8), and a nested connection is formed between the right end of the transmission shaft (8) and the output end (3); a mounting plate (9) is connected to the left side of the mixing body (2); a heating module (15) is arranged inside the mixing block (5), and the mixing block (5) A circuit connection block (16) is fixed on the right side of the movable block (6), and a power transmission module (17) is plugged into the right side of the circuit connection block (16), and the power transmission module (17) is fixed to the left side of the internal mixing machine body (2); an adjustment rod (18) is fixed on the outside of the movable block (6), and a fixing plate (19) is passed through the outer end of the adjustment rod (18), and the fixing plate (19) is fixed to the side of the internal mixing block (5); a first gear (21) is rotatably mounted inside the fixing plate (19), the adjustment rod (18) passes through the first gear (21) and forms a threaded connection between the first gear (21), and a driving mechanism is connected to the outside of the first gear (21) to control the rotation of the first gear (21); The driving mechanism comprises a second gear (22), a third gear (23), a connecting shaft (24) and a first heat-insulating handle (25); A second gear (22) is rotatably mounted inside the fixed plate (19), and the second gear (22) is meshingly connected with the first gear (21); A third gear (23) is arranged on the outside of the second gear (22) and is meshed with the second gear (22), and the third gear (23) is rotatably mounted on the left side of the mixing block (5); A connecting shaft (24) is fixed at the middle of the third gear (23) to control the rotation of the third gear (23), and a rotation connection is formed between the connecting shaft (24) and the kneading block (5); A first heat-insulating handle (25) is fixed to the front and rear ends of the connecting shaft (24), and the first heat-insulating handle (25) is located outside the mixing block (5); A movable docking mechanism is provided between the internal kneading block (5) and the mounting plate (9) to connect the internal kneading block (5) and the mounting plate (9); The movable docking mechanism comprises a mounting shaft (26), a mounting groove (27), a fourth gear (29), a fifth gear (30), a sixth gear (31), a control shaft (32), a connecting plate (33) and a second heat-insulating handle (34); The mounting shafts (26) are evenly distributed on the inner side of the kneading block (5), and a rotation connection is formed between the mounting shafts (26) and the kneading block (5), and a sliding connection is formed between the mounting shafts (26) and the movable block (6); The mounting groove (27) is provided on the left side of the mounting plate (9), and the mounting groove (27) and the mounting shaft (26) are arranged in a one-to-one correspondence, and a threaded connection is formed between the mounting groove (27) and the mounting shaft (26); A fourth gear (29) is fixed on the left side of the mounting shaft (26); A fifth gear (30) is rotatably mounted inside the internal mixing block (5), and the fifth gear (30) is meshingly connected with the fourth gear (29); a sixth gear (31) disposed on the inner side of the fifth gear (30) and meshingly connected with the fifth gear (30), and a rotationally connected between the sixth gear (31) and the mixing block (5); A control shaft (32) is fixed at the middle of the sixth gear (31) to control the rotation of the sixth gear (31); A connecting plate (33) is fixed to the left end of the control shaft (32), and the connecting plate (33) is located outside the mixing block (5); The second heat-insulating handle (34) is rotatably mounted on the left side of the connecting plate (33), and the center of the second heat-insulating handle (34) and the center of the control shaft (32) are staggered.

2. The internal mixer for PVC film production according to claim 1, characterized in that: A heat insulation plate (10) is fixed on the left side of the mounting plate (9) to isolate the heat between the internal mixing block (5) and the internal mixing machine body (2).

3. The internal mixer for PVC film production according to claim 1, characterized in that: The sealing mechanism comprises a sealing block (11), a buffer spring (12), a retractor (13) and a support frame (14); A sealing block (11) is arranged above the feeding port (501); A buffer spring (12) is fixed to the sealing block (11) to provide a buffer force for the sealing block (11); A telescoping device (13) is arranged above the buffer spring (12) to control the movement of the sealing block (11); The support frame (14) is fixed above the telescopic device (13), and the support frame (14) and the internal mixer body (2) are fixedly connected.

4. The internal mixer for PVC film production according to claim 1, characterized in that: A material receiving box (20) is provided below the mixing block (5), and the material receiving box (20) is installed inside the base (1) and between the base (1) to form a forward and backward sliding structure.

5. The internal mixer for PVC film production according to claim 1, characterized in that: An auxiliary groove (28) is provided on the top of the base (1), and the auxiliary groove (28) and the mounting shaft (26) are arranged in a one-to-one correspondence, providing positioning for the placement of the mixing block (5).

6. The internal mixer for PVC film production according to claim 1 or 5, characterized in that: A locking rod (35) passes through the interior of the connecting plate (33), and a threaded connection is formed between the locking rod (35) and the connecting plate (33).

7. A production process for implementing the internal mixer for PVC film production according to claim 1, characterized in that: The process includes the following steps: Step 1: During use, the mixing block (5) can be replaced and adjusted according to production needs, thereby changing the shape of the mixing chamber and the shape of the rotor (7), thereby adjusting the mixing environment. The concave and convex matching of the transmission shaft (8) and the output end (3) can realize power transmission, and the connection and disassembly can be carried out by plugging and unplugging later; Step 2: Add the PVC film raw material to be tested by banburying into the interior of the banburying block (5) through the feeding port (501), then control the sealing mechanism to seal the feeding port (501), drive the output end (3) through the banburying body (2) to drive the transmission shaft (8) and the rotor (7) to rotate, and at the same time, adjust and control the temperature of the heating module (15) through the regulator (4) to achieve control of the banburying temperature, and perform banburying treatment on the raw material through the reverse rotation of the two sets of rotors (7); Step 3: After the internal kneading is completed, the first gear (21) can be controlled to rotate so that the adjusting rod (18) can be driven to move through the threaded connection between the first gear (21) and the adjusting rod (18), so that the adjusting rod (18) pulls the movable block (6) to move, exposing the rotor (7), facilitating the discharge of the material in the internal kneading block (5) and also facilitating the rapid heat dissipation of the internal kneading block (5).

Images